CN215475524U

CN215475524U - Intelligent locomotive rear-end collision prevention warning device

Info

Publication number: CN215475524U
Application number: CN202121003072.3U
Authority: CN
Inventors: 陈均嘉; 黄玉树; 黄文忠
Original assignee: Join Link International Technology Co ltd
Current assignee: Join Link International Technology Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-01-11
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a rear-end collision prevention warning device for an intelligent locomotive, which is used on the locomotive and comprises: a blind area detection device; the camera is electrically connected with the blind area detection device; a right side warning device and a left side warning device, both right side and left side warning device all electric connection in this blind area detection device. According to the utility model, whether objects are close to the left side and the right side of the rear part of the locomotive or not can be known through the individual warning devices at the left side and the right side, or the objects are transmitted to the instrument panel of the locomotive in a wireless or wired transmission mode, or signals are transmitted to the head-up display (HUD) in the safety helmet in a wireless mode, so that the driving safety of the locomotive can be effectively improved, the risk of accidents caused by rear-end collision is reduced, and the driving safety of locomotive drivers is effectively improved.

Description

Intelligent locomotive rear-end collision prevention warning device

Technical Field

The utility model relates to an intelligent locomotive rear-end collision prevention warning device, in particular to an intelligent locomotive rear-end collision prevention warning device which can be applied to a locomotive and has the function of preventing rear vehicles from colliding.

Background

In the existing locomotive market, generally speaking, a locomotive driver watches the rear state of the locomotive during running through rear mirrors on two sides of a handle area. However, since the rear-view mirror of the motorcycle often cannot fully know the image or the environmental status behind the motorcycle, even when the driver determines that the rear object is approaching from the rear-view mirror, the effect of the rear-view mirrors on both sides of the motorcycle cannot fully reflect the actual approaching distance of the rear object. Therefore, when an object is close to the rear of the motorcycle, the driver of the motorcycle may not react in time, and the collision risk may occur, which needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model is a warning device for preventing rear-end collision of an intelligent locomotive, which can not only achieve the function of detecting blind areas behind the locomotive, carry out image detection on images at different viewing angles behind the locomotive, but also enable a locomotive driver to clearly know that an object is close to the rear of the locomotive in a mode of individual warning at the left side and the right side, thereby being convenient for the locomotive driver to conveniently turn back without taking the back and avoiding the dead angle of a rear mirror, and being capable of knowing whether the object is close to the rear of the locomotive in the environment states at the left side and the right side through the individual warning devices at the left side and the right side; or the information is transmitted to the instrument panel of the locomotive in a wireless or wired transmission mode, so that a locomotive driver can know the information; or the signal is transmitted to a head-up display (HUD) in the safety helmet by wireless transmission, so that the locomotive driver can know the signal clearly. Therefore, the safety of locomotive running can be effectively improved, and the risk that an accident happens because an object behind the locomotive is close to a locomotive driver and the driver cannot react in time or the rear-end collision happens is reduced.

In order to achieve the above object, the intelligent locomotive rear-end collision prevention warning device is used for a locomotive, and comprises: the camera is arranged on the locomotive and shoots backwards when the locomotive runs; the blind area detection device is electrically connected with the camera and divides the image shot by the camera into a rear left side approaching object and a rear right side approaching object; the right warning device is electrically connected with the blind area detection device; and the left side warning device is electrically connected to the blind area detection device.

In one embodiment, the blind spot detection device is disposed at a middle position of a front handle area of the locomotive; the camera is arranged at the rear position of the locomotive body; the right warning device is arranged on the right side of a handle area in the locomotive; the left warning device is disposed on the left of the handlebar area in the motorcycle.

In one embodiment, the blind area detection device includes: a container box; a circuit board arranged in the containing box; the upper cover is arranged above the containing box and is used for covering the upper opening of the containing box.

In one embodiment, the circuit board is provided with a plurality of chips, and the chips execute dynamic image optical flow detection and optical flow calculation, can distinguish a right image and a left image behind the locomotive, and can detect that a rear left approaching object or a rear right approaching object is generated; the circuit board is provided with a plurality of input and output connecting holes which are used for plugging the transmission line of the camera, the transmission line of the right warning device and the transmission line of the left warning device; the transmission line of the camera, the transmission line of the right warning device and the transmission line of the left warning device can pass through the corresponding through parts and be inserted into the input and output connection holes.

In one embodiment, when the blind area detection device detects that an image of the left side close to the object is generated in the rear image acquired by the camera, the left side warning device is made to flash; when the blind area detection device detects that the image of the rear right side close to the object is generated, the right side warning device is enabled to flicker.

In one embodiment, the present invention is an intelligent locomotive rear-end collision prevention warning device, including: the camera is arranged on the locomotive and shoots backwards when the locomotive runs; the blind area detection device is electrically connected with the camera and divides the image shot by the camera into a rear left side approaching object and a rear right side approaching object; and the LED lamp display is electrically connected with the blind area detection device and is arranged at a position adjacent to the blind area detection device.

In one embodiment, the circuit board is provided with a plurality of chips, and the chips execute dynamic image optical flow detection and optical flow calculation, can distinguish a right image and a left image behind the locomotive, and can detect that a rear left approaching object or a rear right approaching object is generated; the circuit board is provided with a plurality of input and output connection holes, and the input and output connection holes are used for plugging the transmission line of the camera and the transmission line of the LED lamp display; the side edge of part of the containing box is provided with a plurality of penetrating parts, the number of the penetrating parts is arranged corresponding to the number of the input and output connection holes, and the transmission line of the camera and the transmission line of the LED lamp display can penetrate through the corresponding penetrating parts and be inserted into the input and output connection holes.

In one embodiment, the blind spot detection device is disposed at a middle position of a front handle area of the locomotive; the camera is arranged at the rear position of the locomotive body; the LED light display is disposed in a middle region of a handlebar area in the locomotive.

In an embodiment, the light emitting components of the LED lamps displayed by the LED lamp display are formed by arranging LED light bars in a two-side progressive strip manner, and the increase or decrease in different numbers corresponding to the number of the light emitting bars of different strip-shaped LED lamps can be displayed according to the difference in distance between the locomotive and the rear left-side approaching object or the rear right-side approaching object behind the locomotive.

For a better understanding of the nature and technical content of the present invention, reference should be made to the following detailed description of the utility model, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description, and not for purposes of limitation.

Drawings

FIG. 1 is a schematic view of a typical locomotive;

FIG. 2 is a schematic view of the connection of the apparatus according to the first embodiment of the present invention;

FIG. 3A is a schematic view of a connection of a second embodiment of the present invention;

FIG. 3B is a schematic view of a camera shooting the back of a locomotive in an embodiment of the present invention;

FIG. 4 is a schematic view of a first embodiment of the present invention installed on a motorcycle;

FIG. 5 is a schematic view of a second embodiment of the present invention installed on a motorcycle;

FIG. 6 is a schematic diagram of an internal embodiment of the blind spot detection device according to the present invention.

Detailed Description

The utility model discloses a rear-end collision prevention warning device for an intelligent locomotive, which can effectively improve the running safety of the locomotive, can detect images of objects approaching from different viewing angles in the rear environment when the locomotive runs, particularly detects the images of the left side and the right side of the rear of the locomotive so as to display whether the detected objects approach in the environment images of the rear of the locomotive, and sends out a warning when the objects approach from the rear is detected, so that a driver of the locomotive can know whether the objects approach the rear of the locomotive immediately without returning. That is, the utility model can know whether the object is close to the left and right sides of the rear of the locomotive through the individual warning devices at the left and right sides, and can also transmit the object to the instrument panel of the locomotive in a wired or wireless transmission mode to be used as a warning; on the other hand, the signal can also be transmitted to a head-up display (HUD) in the safety helmet in a wireless way, so that a locomotive driver can clearly know to carry out related safety measures. Therefore, the driving safety of the locomotive can be effectively improved, the risk that an object behind the locomotive is too late to react to a locomotive driver or is collided by the rear part to cause an accident is reduced, and the driving safety of the locomotive driver is effectively improved.

Various exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which some exemplary embodiments are shown. The inventive concept may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and specific, and will fully convey the scope of the inventive concept to those skilled in the art. The dimensions of the various features and corresponding positional distances may be exaggerated in the figures for clarity where similar or like reference numerals or characters designate similar or related elements throughout.

It should be understood that although terms may be used herein to include first, second and third …, these terms are used to distinguish one device from another device without necessarily requiring a numerical ordering of the devices. As used herein, the terms left or right, front or back, two sides or both, etc. are used to clearly distinguish one side or end of a device from another side or end of the corresponding device, or to distinguish the relative connection position relationship between one device and another device, or to distinguish different positions between one side and another, and are not intended to limit the sequential or positional relationship presented by the text number, and are not necessarily in a numerical continuous relationship; that is, viewed from another perspective, the right side (or left side) of the depicted apparatus may instead be referred to as the left side (or right side) without affecting the nature of the technique. Furthermore, the term "at least one" may be used herein to describe a technique implemented with one or more devices. Also, the terms "plurality" or "a plurality" may be used herein to describe a device or devices, but such plurality is not limited to implementations having two, three, or four or more numbers to indicate implementation of the technique. The above description is made in the first place.

Referring to FIG. 1, a general schematic view of a rear viewing area of a locomotive 10 is shown. Wherein R1 represents dead space, i.e., a so-called blind area where objects in the R1 area are not visible; that is, when the locomotive is traveling, the locomotive rider is not looking at the object in the region of R1. R2 is shown as a visual angle, i.e., the locomotive rider can only see objects in the region of R2 when the locomotive is traveling. And fig. 1 shows the area distribution state of the rear blind area when a general locomotive runs. However, the present invention can completely achieve the visual effect and driving experience without blind areas at the rear, and the motorcycle of the present invention includes, but is not limited to, a two-wheeled vehicle, a heavy vehicle, a 50cc vehicle, a scooter type vehicle, a straddle type vehicle, an electric bicycle, a scooter (scooter), a motorcycle (motorcycle), a heavy motorcycle (heav motorcycle), or a three-wheeled vehicle.

Referring to FIG. 2, the basic components of the intelligent rear-end collision avoidance warning device of the present invention are shown as a first embodiment, and it should be emphasized that the devices of the present invention are used in a motorcycle 10, and a four-wheel or more vehicle is not suitable. Fig. 2 shows an internal housing that includes a blind spot detection device 20, a camera 30, and an LED light display 50. In a practical situation, the LED lamp display 50 can be omitted, and the second embodiment of the right warning device 51 and the left warning device 52 shown in fig. 3A can be used instead, so as to achieve the intended function and effect of the present invention. The function of the blind area detection device 20 is not only explained by its literal meaning, the blind area detection device 20 itself can further serve as the main control center of the whole intelligent locomotive rear-end collision prevention warning device of the present invention, including the detection of the environment image behind the locomotive, the blind area detection device 20 can execute dynamic image light stream detection and light stream operation, mainly can distinguish the right side image and the left side image behind the locomotive for detection, and further detect the image generation of the rear left side approaching object or the rear right side approaching object image. When there is actually a rear left side approaching object or a rear right side approaching object, a right side warning effect or a left side warning effect is further generated. Furthermore, the utility model can also be transmitted to the instrument panel of the locomotive in a wired or wireless transmission mode to be used as a warning; on the other hand, the signal can also be transmitted to a head-up display (HUD) in the safety helmet in a wireless mode, so that a locomotive driver can know the signal clearly. That is, in practical applications, various warnings or hazard warnings or notifications can be provided by the circuit inside the blind spot detection device 20 itself.

The camera 30 may be a wide-angle camera or a non-wide-angle camera in practical applications, and both can be used in the first and second embodiments of the present invention. Although one camera 30 is provided in the present invention, two, three or more cameras 30 can be provided according to the user's requirement, and the present invention is not limited in number. In another embodiment of the camera 30, the camera 30 may also be an outdoor sports camera, which is a 360-degree panoramic sports camera.

In the embodiment of fig. 2, the LED lamp display 50 is electrically connected to the blind spot detection device 20 and is disposed adjacent to the blind spot detection device 20. In actual manufacturing, the light emitting components of the LED lamps displayed by the LED lamp display 50 are formed by arranging the left LED lamp strip and the right LED lamp strip in a gradual strip manner on two sides, as shown in fig. 2, so that the increase and decrease in different quantities corresponding to the quantity of the light emitting lamp strips of different strip-shaped LED lamps can be displayed according to the difference in distance between the locomotive and the surrounding environment object.

Fig. 3A shows a second embodiment of the present invention, which is different from the first embodiment in that the LED lamp display 50 is configured as a right warning device 51 and a left warning device 52 instead. The right warning device 51 is electrically connected to the blind area detecting device 20 through a transmission line, and the left warning device 52 is also electrically connected to the blind area detecting device 20 through a transmission line. In practical application, when the locomotive is running, the blind area detection device 20 reconstructs an object in the image for the left and right rear frames according to the rear image captured by the camera 30, and when detecting or detecting that an image of the left and right rear frames close to the object is generated, the left warning device 52 is made to flash; when the blind spot detection device detects that the image of the rear right side approaching object is generated, the right side warning device 51 is made to flash.

Fig. 3B is a schematic diagram illustrating a rear image captured by the camera 30 while the locomotive is running, i.e., a camera screen 40 is illustrated. The blind area detection device 20 obtains the real-time photographed image of the camera 30, and then the blind area detection device 20 detects and detects each object in the rear left half picture and the rear right half picture deconstructed image, especially detects the moving object in the rear image, and further determines that the moving objects on the rear two sides are divided into the object closest to the locomotive at the rear left of the locomotive and the object closest to the locomotive at the rear of the locomotive, which means the rear right side approaching object 41 and the rear left side approaching object 42 at the rear left of the reference numeral 41 in fig. 3B; when the receiver detects that the rear right side approaching object 41 approaches the rear of the locomotive and approaches a preset distance value, the blind area detection device 20 sends a signal to enable the right side warning device 51 to send a warning light signal; when the rear left approaching object 42 approaches the rear of the locomotive to a preset distance value, the blind zone detection device 20 sends a signal to make the left warning device 52 send a warning light.

Similarly, in the first embodiment of fig. 2, when the rear right-side approaching object 41 approaches the rear of the locomotive to a preset distance value, the blind area detection device 20 sends a signal to make the right-side light bar of the LED light display 50 send a warning light signal, and the increase or decrease in the number of the light bars of the different strip-shaped LED lights can be displayed according to the difference in distance between the rear right-side approaching object 41 behind the locomotive.

In addition, when the rear left side approaching object 42 approaches the rear of the locomotive and approaches a preset distance value, the blind area detection device 20 sends a signal to enable the left side light bar of the LED light display 50 to send a warning light signal, and the increase and decrease in different numbers corresponding to the number of the light bars of different strip-shaped LED lights can be displayed according to the difference in distance between the rear left side approaching objects 42 at the rear of the locomotive.

Fig. 4 illustrates an embodiment in which the blind spot detection device 20, the camera 30, and the LED lamp display 50 of the first embodiment of fig. 2 are further physically disposed at different locations on the locomotive 10. Wherein, the blind area detection device 20 is arranged at the middle position of the front handle area of the locomotive 10; here, the installation position of the blind area detection device 20 is described as an example, and the present invention is not limited to the case where the blind area detection device 20 is installed only at the middle position of the front handle region. When the cameras 30 are arranged singly, they are usually arranged at the rear position of the body of the locomotive 10; if two cameras 30 are provided, one camera 30 is provided at a rear position of the body of the locomotive 10, and the other camera is provided at a front position of the body of the locomotive 10. In practice, the arrangement of the camera 30 depends on the actual requirements of the user. The camera 30 is mounted on the motorcycle 10 by means of a screw-locking, velcro-bonding, rivet-fixing, double-sided adhesive, hook-and-groove structure-locking, etc., but the present invention is not limited thereto. In addition, in FIG. 4, the LED light display 50 is located in the middle of the front handle area of the locomotive 10 and below the dashboard of the locomotive. The installation position of the device of the present invention is shown in fig. 4 as an example, which should not be construed as a limitation to the practical application.

Fig. 5 shows an embodiment in which the blind spot detection device 20, the camera 30, the right warning device 51, and the left warning device 52 are actually disposed at different positions on the locomotive 10 according to the second embodiment of the present invention. Wherein the blind spot detection device 20 is also disposed at a middle position of a front grip area of the locomotive 10; here, the installation position of the blind area detection device 20 is described as an example, and the present invention is not limited to the case where the blind area detection device 20 is installed only at the middle position of the front handle region. When the cameras 30 are arranged individually, the cameras 30 are arranged at the rear position of the body of the locomotive 10, and in practical application, the arrangement of the cameras 30 depends on the actual requirements of the user. The camera 30 is mounted on the motorcycle 10 by means of a screw-locking, velcro-bonding, rivet-fixing, double-sided adhesive, hook-and-groove structure-locking, etc., but the present invention is not limited thereto. Further, the right-hand warning device 51 in fig. 5 is disposed on the right side of the handlebar area of the motorcycle 10 itself; the left warning device 52 is disposed on the left of the handlebar area in the motorcycle 10; of course, the installation position of the device of the present invention is illustrated in fig. 5 as an example, and the scope of practical application is not limited thereto.

Fig. 6 is a view showing a structural configuration of the blind area detection device 20 according to the present invention. The blind area detecting device includes a containing box 21, a circuit board 22 and an upper cover 23. The accommodating box 21 is a box structure having an upward opening and a hollow interior, and has an accommodating space, and the circuit board 22 is disposed inside the accommodating box 21, that is, the circuit board 22 is disposed in the accommodating space, as shown in fig. 4. The upper cover 23 is disposed above the accommodating box 21 for covering the upper opening of the accommodating box 21. In addition, as shown by the reference numerals in fig. 6, a plurality of chips 24 are disposed on the circuit board 22, and the plurality of chips 24 are mainly used for performing optical flow detection and optical flow calculation of the moving images related to the driving of the locomotive, so that the right side image and the left side image behind the locomotive can be distinguished from each other in the moving images displayed by the dual-channel digital image display 40, and the rear left side approaching object 42 or the rear right side approaching object 41 is detected to be generated. And when detecting that the rear right side approaching object 41 approaches the rear of the locomotive and approaches a preset distance value, the blind area detection device 20 sends a signal to enable the right side warning device 51 to send a warning light signal; when the rear left approaching object 42 approaches the rear of the locomotive to a preset distance value, the blind zone detection device 20 sends a signal to make the left warning device 52 send a warning light.

In fig. 6, a plurality of input/output connection holes 25 are formed in the circuit board 22, and the plurality of input/output connection holes 25 are mainly used for inserting respective transmission lines of the right side alarm device 51 and the left side alarm device 52, or inserting a transmission line of the camera 30, or inserting a transmission line of the LED lamp display 50. It should be noted that, in the present invention, the transmission line of the right side warning device 51 and the transmission line of the left side warning device 52, or the transmission line of the camera 30, or the transmission line of the LED lamp display 50, etc. may be a USB a Type (Type), a USB B Type, a USB C Type, a micro (mini) USB, or a micro (micro) USB in practical use; furthermore, the transmission line may be a common signal transmission line, such as a 50 ohm transmission line.

Meanwhile, fig. 6 shows that a plurality of through portions 26 are disposed on a part of the side of the accommodating box 21, and the number of the through portions 26 is set to correspond to the number of the input/output connection holes 25, for example, as shown in fig. 6, four input/output connection holes 25 are correspondingly provided with four through portions 26; the through portion 26 allows the transmission lines of the right alarm device 51 and the left alarm device 52, or the transmission lines of the camera 30, or the transmission lines of the LED display 50 to pass through the corresponding through portion 26 and be inserted into the input/output connection hole 25.

In conclusion, the product of the intelligent locomotive rear-end collision prevention warning device can effectively improve the running safety of the locomotive, and particularly can detect the images of the left side and the right side behind the locomotive so as to display whether an object approaches in the environmental image behind the locomotive or not, and send out a warning when the object is detected to approach from the rear; can also be transmitted to the instrument panel of the locomotive in a wired or wireless transmission mode to be used as a warning; on the other hand also can pass through the new line display (HUD) of wireless transmission signal to in the safety helmet, let locomotive driver need not turn back and avoid looking into the rear mirror dead angle, can know the rear state promptly. Therefore, the driving safety of the locomotive driver is effectively improved, and the risk of accidents caused by rear collision due to the fact that an object behind the locomotive is not in time to react and is close to the locomotive driver is reduced. And can be effectively applied to the field of locomotives with different specifications. Obviously, the technical content of the utility model has extremely strong patent application requirements.

However, the description of the utility model is merely exemplary of the preferred embodiments, and is not intended to limit the scope of the utility model, which is defined by the appended claims, as any and all local variations, modifications, or additions that fall within the true scope of the utility model.

Claims

1. The utility model provides an intelligent locomotive prevents warning device that knocks into back which characterized in that uses on the locomotive, and this intelligent locomotive prevents warning device that knocks into back includes:

the camera is arranged on the locomotive and shoots backwards when the locomotive runs;

the blind area detection device is electrically connected with the camera and divides the image shot by the camera into a rear left side approaching object and a rear right side approaching object;

the right warning device is electrically connected with the blind area detection device;

and the left side warning device is electrically connected to the blind area detection device.

2. The intelligent locomotive rear-end collision avoidance warning device as claimed in claim 1, wherein the blind spot detection device is disposed at a middle position of a front handle area of the locomotive; the camera is arranged at the rear position of the locomotive body; the right warning device is arranged on the right side of a handle area in the locomotive; the left warning device is disposed on the left of the handlebar area in the motorcycle.

3. The intelligent locomotive rear-end collision avoidance warning device of claim 1, wherein the blind zone detection device comprises:

a container box;

a circuit board arranged in the containing box;

the upper cover is arranged above the containing box and is used for covering the upper opening of the containing box.

4. The intelligent locomotive rear-end collision avoidance warning device according to claim 3, wherein a plurality of chips are disposed on the circuit board, the plurality of chips performing dynamic image optical flow detection and optical flow calculation, and being capable of distinguishing a right image from a left image behind the locomotive and detecting generation of the rear left approaching object or generation of the rear right approaching object;

the circuit board is provided with a plurality of input and output connecting holes which are used for plugging the transmission line of the camera, the transmission line of the right warning device and the transmission line of the left warning device;

the transmission line of the camera, the transmission line of the right warning device and the transmission line of the left warning device can pass through the corresponding through parts and be inserted into the input and output connection holes.

5. The intelligent locomotive rear-end collision avoidance warning device according to claim 1, wherein when the blind area detection device detects that an image of the rear left side approaching object is generated in the rear image acquired by the camera, the left side warning device is made to flash; when the blind area detection device detects that the image of the rear right side close to the object is generated, the right side warning device is enabled to flicker.

6. The utility model provides an intelligent locomotive prevents warning device that knocks into back which characterized in that uses on the locomotive, and this intelligent locomotive prevents warning device that knocks into back includes:

and the LED lamp display is electrically connected with the blind area detection device and is arranged at a position adjacent to the blind area detection device.

7. The intelligent locomotive rear-end collision avoidance warning device of claim 6, wherein the blind zone detection device comprises:

a container box;

a circuit board arranged in the containing box;

8. The intelligent locomotive rear-end collision avoidance warning device according to claim 7, wherein a plurality of chips are disposed on the circuit board, the plurality of chips performing dynamic image optical flow detection and optical flow calculation, and being capable of distinguishing a right image from a left image behind the locomotive and detecting generation of the rear left approaching object or generation of the rear right approaching object;

the circuit board is provided with a plurality of input and output connection holes, and the input and output connection holes are used for plugging the transmission line of the camera and the transmission line of the LED lamp display;

the side edge of part of the containing box is provided with a plurality of penetrating parts, the number of the penetrating parts is arranged corresponding to the number of the input and output connection holes, and the transmission line of the camera and the transmission line of the LED lamp display can penetrate through the corresponding penetrating parts and be inserted into the input and output connection holes.

9. The intelligent locomotive rear-end collision avoidance warning device as claimed in claim 6, wherein the blind spot detection device is disposed at a middle position of a front handle area of the locomotive; the camera is arranged at the rear position of the locomotive body; the LED light display is disposed in a middle region of a handlebar area in the locomotive.

10. The intelligent locomotive rear-end collision avoidance warning device according to claim 6, wherein the light emitting components of the LED lamps displayed by the LED lamp display are formed by arranging LED light bars in a two-side progressive strip manner, and the increase or decrease in the number of the LED light bars of different strip-shaped LEDs can be displayed according to the difference in distance between the locomotive and the rear left-side approaching object or the rear right-side approaching object behind the locomotive.