Road exit guiding method, device and system based on road condition early warning

Abstract

According to the road exit guiding method, device and system based on road condition early warning provided by the invention, the plurality of first indication boards which are arranged at intervals in the road section behind the road exit in the advancing direction of the road are remotely controlled, and the first indication boards are also remotely connected with the server; the display module is arranged on the base so as to rotate on the base under the control of the server so as to switch between a display state facing the road and a non-display state back to the road; wherein the first indication board is provided with first guiding information capable of being displayed, and the first guiding information comprises driving operation prompting information needing to be executed by a driver. According to the invention, a traffic management department does not need to emergently inform maintenance workers to get an early warning sign to arrive at a management and control road section, and temporary setting is carried out for early warning and guiding; in addition, compared with a traditional variable information issuing screen, the system has the advantages of being easy to control, low in power consumption, good in economical efficiency, high in safety and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of highway traffic, and particularly relates to a highway exit guiding method, device and system based on road condition warning. Background Art

[0002] Highways such as expressways and expressways are sections where traffic accidents and congestion frequently occur. Reasons such as bad weather, sudden excessive traffic flow causing road congestion or traffic accidents may require the traffic department to conduct advance guiding on the highway in advance, guiding vehicles to leave the highway in time at the exit before entering the congested or dangerous section.

[0003] For example, foggy weather is a relatively common bad weather and is also one of the main reasons for causing serious traffic accidents on expressways, bringing great inconvenience to travel. When a certain expressway section no longer has safe passing conditions due to foggy bad weather, timely and effective control and guiding measures must be taken to remind drivers to turn on the vehicle fog lights and drive at a reduced speed, and safely and quickly drive out of the foggy section according to the instructions. Or, when a certain expressway section does not reach the situation of prohibiting passage due to medium fog, heavy rain or haze, etc., timely and effective reminder means are also required to remind drivers to turn on the vehicle fog lights and drive at a reduced speed, or leave the expressway as much as possible if not necessary, etc.

[0004] Another example is that when there is congestion in a section caused by sudden excessive traffic flow or a traffic accident ahead, timely and effective control and guiding measures can also be taken to remind drivers to safely and quickly drive out of the expressway in advance according to the instructions, avoid entering the congested section or accident section, thereby reducing the aggravation of congestion or avoiding the occurrence of secondary accidents.

[0005] However, generally, for temporary control and diversion on expressways or expressways, it is the traffic management department that urgently notifies the maintenance workers to go to the designated place to pick up the warning signs and rush to the control section to set up warnings and guides temporarily. On the one hand, bad weather and dangerous sections pose a great test to the personal safety of the workers; on the other hand, passive response also causes a great delay in the disposal time; at the same time, the highway that already has congestion and accidents will also affect the arrival time of the workers. Summary of the Invention

[0006] The purpose of the present invention is to provide a highway exit guiding method, device and system based on road condition warning to solve the above technical problems.

[0007] The present invention provides a highway exit guiding device based on road condition warning, including a first indicating unit arranged on the rear section of the highway exit in the driving direction of the highway; the first indicating unit includes a plurality of first indicator signs arranged at intervals, and each first indicator sign includes a base and a sign board rotatably arranged on the base; the first indicator sign is also remotely connected to the server to control the rotation of the sign board on the base under the control of the server, so that the first indicator sign switches between a display state facing the highway and a non-display state facing away from the highway; the sign board is provided with displayable first guiding information, and in the display state, the first indicator sign presents the first guiding information to the vehicle driver; wherein, the first guiding information includes driving operation prompt information that the driver needs to execute.

[0008] Preferably, it further includes a sensor module arranged on the front section of the highway exit in the driving direction of the highway; the sensor module is used to detect the road condition of the highway, and the sensor module is communicatively connected to the server.

[0009] Preferably, the sensor module includes one or more of a traffic flow counting sensor, a visibility sensor, a comprehensive weather sensor, a rain sensor, a camera, and a millimeter wave radar.

[0010] Preferably, the sign board has a first display surface and a back surface arranged oppositely; wherein, the first display surface is used to display the first guiding information, and in the display state, the first display surface forms an angle of 60-90° with the driving direction to present the first guiding information to the vehicle driver; the first display surface is an active light-emitting display surface, and the first guiding information is light display information; the first guiding information further includes prompt information about the road condition or weather of the front section of the highway exit.

[0011] Preferably, the active light-emitting display surface can be an LED sign board.

[0012] Preferably, the driving operation prompt information that the driver needs to execute includes one or more of deceleration prompt information, departure prompt information, speed limit prompt information, and lighting prompt information; the prompt information about the road condition or weather of the front section of the highway exit includes one or more of fog prompt information, heavy rain prompt information, front accident prompt information, front congestion prompt information, road surface icing prompt, and front construction prompt information, etc.

[0013] Further, in the display state, the first navigation information displayed on the first display surface further includes one of the driving operation prompt information that the driver needs to execute, or the first navigation information displayed on the first display surface further includes one of the driving operation prompt information that the driver needs to execute and the prompt information about the road conditions or weather of the section ahead of the highway exit.

[0014] Further, the angle between the first display surface and the traveling direction is 75 - 90°.

[0015] Furthermore, the angle between the first display surface and the traveling direction is 85 - 90°.

[0016] Preferably, in an embodiment, in the non - display state, the first display surface of the first sign faces or backs the highway.

[0017] Preferably, in another embodiment, in the non - display state, the back of the first sign is presented to the driver, and the second navigation information is displayed on the back.

[0018] The present invention also provides a navigation method according to the highway exit navigation device based on road condition warning as described in any one of the above, including the steps: S1, in response to the first navigation signal of the server, controlling the first sign to switch to the display state to present the first navigation information to the vehicle driver; S2, in response to the second navigation signal of the server, controlling the first sign to switch to the non - display state.

[0019] Preferably, the step S1 includes: in response to the first navigation signal of the server, judging the current state of the first indicating unit. When the first indicating unit is in the display state, maintaining the display state; when the first indicating unit is in the non - display state, controlling the first sign to switch to the display state to present the first navigation information to the vehicle driver.

[0020] Preferably, the highway exit navigation device based on road condition warning further includes: Road contour lights provided on at least one side of the highway on the section behind the highway exit in the traveling direction of the highway; Or, A second sign unit provided above the highway at the highway exit, and the third navigation information is provided on the second sign unit, and the third navigation information includes one or more of the prompt information for reminding the driver to drive out of the highway exit, the prompt information for traffic restrictions on the section ahead, and the prompt information about the road conditions or weather of the section ahead. The guiding method further includes the steps of: controlling the road profile lights to turn on, or controlling the second sign unit to display the third guiding information.

[0021] Preferably, the highway exit guiding device based on road condition warning further includes a speaker; step S1 of the guiding method further includes controlling the speaker to emit a prompt message.

[0022] The present invention also provides a highway exit guiding system based on road condition warning, including a server and the highway exit guiding device according to any one of the above. Computer programs are stored on the server and the highway exit guiding device based on road condition warning. When the computer programs are executed, the steps of the guiding method according to any one of the above are realized.

[0023] The highway exit guiding method, device and system based on road condition warning provided by the present invention are provided with a first indication unit remotely controlled and located on the rear section of the highway exit in the traveling direction of the highway through remote control. The first indication unit includes a plurality of first signs arranged at intervals. Each first sign includes a base and a sign board rotatably arranged on the base; the first sign is also remotely connected to the server to rotate on the base under the control of the server to switch between a display state facing the highway and a non-display state facing away from the highway; wherein, a first guiding information that can be displayed is arranged on the sign board, and the first guiding information includes a prompt message for reminding the driver to drive out of the highway exit; when guiding and controlling is required, the first sign is controlled to switch to the display state, and the first sign presents the first guiding information to the vehicle driver. Preferably, the first sign includes a first display surface, and the first display surface is an active light-emitting sign. The highway exit guiding method, device and system based on road condition warning provided by the present invention do not require the traffic management department to urgently notify the maintenance workers to pick up the warning signs at the designated place and rush to the control section for temporary setting for warning and guiding; in addition, compared with the traditional variable information display screen, it does not require a font library card, can realize solar power supply, and has the advantages of simple control, low power consumption, good economy, high safety, etc. Description of the Drawings

[0024] Figure 1 It is a layout schematic diagram of the highway exit guiding device based on road condition warning in an embodiment of the present invention.

[0025] Figure 2 It is an architecture schematic diagram of the highway exit guiding system based on road condition warning in an embodiment of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the first sign in an embodiment of the present invention.

[0027] Figure 4 Schematic diagram of the architecture of the highway exit guiding system based on road condition warning in another embodiment of the present invention.

[0028] Figure 5 Schematic flowchart of the method for guiding highway exits based on road condition warning in an embodiment of the present invention.

[0029] The implementation, functional features, and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0030] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] In the following description, suffixes such as "module", "component", or "unit" used to represent elements are only for the convenience of describing the present invention and have no specific meaning in themselves. Therefore, "module", "component", or "unit" can be used interchangeably.

[0032] Now, the present invention will be further described in detail with reference to the accompanying drawings.

[0033] Please also combine Figures 1 - 4 , the present invention provides a highway exit guiding device 100 based on road condition warning, including a first indicating unit 30 arranged on the rear section 21 of the highway exit 20 in the traveling direction of the highway 1; the first indicating unit 30 includes a plurality of first indicating signs 3 arranged at intervals, each of the first indicating signs 3 includes a base 32 and a sign board 31 rotatably arranged on the base 32; the first indicating sign 3 is also remotely connected to the server 4 to control the rotation of the sign board 31 on the base 32 under the control of the server 4, so that the first indicating sign 3 switches between a display state facing the highway 1 and a non-display state facing away from the highway 1; the sign board 31 is used to display first guiding information, and the first guiding information that can be displayed is arranged on the sign board 31; in the display state, the first indicating sign 3 presents the first guiding information to the vehicle driver; wherein, the first guiding information includes driving operation prompt information that the driver needs to execute.

[0034] Specifically, the first sign 3 is remotely connected to the server 4. For example, in the states that need to be controlled, such as heavy fog on the road ahead, traffic accidents on the road ahead, congestion on the road ahead, icing on the road ahead, and road construction on the road ahead, the server 4 can control the first sign 3 to rotate on the base 32 to switch to the display state facing the drivers of the vehicles on the road 1. Thus, through multiple first signs 3 arranged behind the highway exit 20, before the driver arrives at the highway exit 20 while driving, in the control scenario (the first sign 3 is in the display state), the driver can observe the first guiding information (i.e., the driving operation prompt information that the driver needs to execute) prompted by the first sign 3, so as to remind the driver to execute the corresponding driving operation, thereby achieving the purpose of control.

[0035] Those skilled in the art should know that the way of rotatably arranging the sign board 31 on the base 32 can be realized through a reasonable rotation structure, and by remotely connecting the first sign 3 to the server 4 as well, so as to control the sign board 31 to rotate on the base 32 under the control of the server 4. Those skilled in the art can reasonably use a communication module and a controller to realize the remote control of the rotation structure. The innovation of the present invention is to propose a rotatable first indication unit 30 arranged in the rear section 21 of the highway exit 20 in the traveling direction of the highway 1, so as to realize the display of the driving operation prompt information that the driver needs to execute. The specific rotation structure and remote control can be realized by those skilled in the art according to the needs of the prior art and the technical solution of the present application, and will not be elaborated here.

[0036] In addition, those skilled in the art should know that the first indication unit 30 needs to be equipped with a corresponding power supply (mains power or solar power supply, etc.) and necessary control circuit components, etc. Some of them are the same as the prior art and will not be elaborated here.

[0037] Preferably, the highway exit guiding device 100 based on road condition warning further includes a sensor module 50 arranged in the front section of the highway exit 20 along the traveling direction of the highway 1; the sensor module 50 is used to detect the road condition of the highway 1, and the sensor module 50 is communicatively connected to the server 4.

[0038] Specifically, the sensor module 50 includes one or more of a traffic flow counting sensor, a visibility sensor, a comprehensive weather sensor, a rain sensor, a camera, a millimeter-wave radar, etc. It can be understood that the sensor module 50 can be set according to the road conditions requirements of the highway. For example, in mountainous sections prone to heavy fog, a visibility sensor can be set; in sections with complex and changeable weather, a comprehensive weather sensor can be set; in low-lying highway sections with heavy rain and poor drainage, a rain sensor or a water depth sensor can be set, etc. Those skilled in the art can make selections and combinations according to needs.

[0039] The sensor module 50 sends the detected road conditions or weather data to the server 4, and the server 4 decides whether to conduct control at the highway exit 20 behind the section where the sensor module 50 is located, and reminds the driver to drive out of the highway at this highway exit 20, either automatically or manually.

[0040] In a preferred embodiment, the first sign 3 has a first display surface 301 and a back surface 302 arranged oppositely; wherein, the first display surface 301 is used to display the first guiding information. In the display state, the first display surface 301 forms an angle of 60-90° with the traveling direction to present the first guiding information to the vehicle driver; the first display surface 301 is an actively luminous display surface; the first guiding information further includes a prompt message about the road conditions or weather of the section in front of the highway exit 20.

[0041] Preferably, the driving operation prompt information that the driver needs to execute includes one or more of a deceleration prompt information, a driving-away prompt information, a speed limit prompt information, a lighting prompt information; the prompt message about the road conditions or weather of the section in front of the highway exit includes one or more of a heavy fog prompt information, a heavy rain prompt information, a front accident prompt information, a front congestion prompt information, a road surface icing prompt, a front construction prompt information, etc.

[0042] Furthermore, in the display state, the first guiding information displayed on the first display surface further includes one of the driving operation prompt information that the driver needs to execute, or the first guiding information displayed on the first display surface includes one of the driving operation prompt information that the driver needs to execute and the prompt message about the road conditions or weather of the section in front of the highway exit.

[0043] Preferably, the actively luminous display surface can be an LED light board.

[0044] In a preferred embodiment, as Figure 3As shown, the first display surface 301 can also be a light-emitting panel with a backlight and a front panel. By setting a text light-transmitting area on the front panel, the text information can be fixedly displayed.

[0045] Specifically, the first display surface 301 can be set as a display screen that only displays a single type of information. There is only one type of driving operation prompt information that the driver needs to execute. At the same time, there is also only one type of prompt information about the road conditions or weather on the section ahead of the highway exit; for example, Figure 3 As shown, the text light-transmitting area on the front panel of the first display surface 301 is only "Foggy weather, leave the highway", which can be used behind the highway exit 20. When the section ahead of the highway exit 20 is a section prone to fog, the vehicle can be controlled to leave the highway in advance through this first indication unit 30.

[0046] In other embodiments, the types of information that the first display surface 301 can display can be enriched, so as to achieve applications in different scenarios. Those skilled in the art can know that when multiple types of information need to be displayed on the first display surface 301, it can be achieved through different means. For example, the first display surface 301 of the first sign 3 can be an LED display screen, so as to achieve the display of multiple types of information in the first navigation information; those skilled in the art can also adopt a display structure of a light-emitting panel with a backlight and a front panel. Only by setting different text light-transmitting areas on the front panel and controlling the light sources behind different text light-transmitting areas to emit light, the different text light-transmitting areas can be lit to display the text information. For example, a display area for the driving operation prompt information that the driver needs to execute (including multiple different text light-transmitting areas) is set to display different operation prompts, and a display area for the prompt information about the road conditions or weather on the section ahead of the highway exit (including multiple different text light-transmitting areas) is set to display different road condition prompts. Thus, different control purposes can be achieved according to the needs of the scenario. For example, during fog warning, according to the concentration of the fog, prompt information such as leaving the highway, reducing speed, and speed limit of 60 for the driving operations that the driver needs to execute can be used to achieve different control purposes.

[0047] It can be understood that when the cost permits, the first display surface 301 can also adopt the form of other electronic display screens, as long as it can display information in an actively light-emitting manner.

[0048] Furthermore, the first display surface 301 forms an angle of 75 - 90° with the traveling direction. It can be understood that on a straight highway, the traveling direction here refers to the extension direction of the highway; when the highway is a curve, generally, the traveling direction can be understood as the tangent direction of the curve of the highway.

[0049] Furthermore, the first display surface forms an angle of 85 - 90° with the traveling direction.

[0050] In one embodiment, when the first sign 3 is in the non-display state, the first display surface 301 faces or backs the road. In this embodiment, when the first sign 3 switches from the display state to the non-display state, the rotation angle is approximately about 90° (taking the angle between the first display surface 301 and the traveling direction as 90° as an example, and corresponding angles are rotated for other methods).

[0051] In another embodiment, when the first sign 3 is in the non-display state, the back surface 302 faces the vehicle driver; the second guiding information is displayed on the back surface 302. In this embodiment, when the first sign 3 switches from the display state to the non-display state, the rotation angle is approximately about 180°. Among them, the second guiding information can be non-actively emitting light characters, such as prompt characters (such as speed limit information, exit prompt information, etc.) set on the back surface 302 of the first sign 3 by printing, pasting, etc., to achieve the purpose of better utilizing the guiding function of the first sign 3.

[0052] In one embodiment, a plurality of the first signs 3 arranged at intervals are sequentially arranged on the right side in the traveling direction; among them, warning lights and / or speakers are arranged on the first sign 3. The first sign 3 can remind the driver through the flashing of the warning light or the sound of the speaker, so that the driver receives the first guiding information and thus drives away from the road through the highway exit 20.

[0053] Please also combine Figure 5 with this, the present invention also provides a guiding method for a highway exit guiding device 100 based on road condition warning as described in any one of the above, including the steps: S1. Respond to the first guiding signal of the server 4, and control the first sign 3 to switch to the display state to present the first guiding information to the vehicle driver; S2. Respond to the second guiding signal of the server 4, and control the first sign 3 to switch to the non-display state.

[0054] Preferably, the step S1 includes: responding to the first guiding signal of the server 4, judging the current state of the first indicating unit 30, maintaining the display state when the first indicating unit 30 is in the display state; and controlling the first sign 3 to switch to the display state to present the first guiding information to the vehicle driver when the first indicating unit 30 is in the non-display state.

[0055] The server 4 can also issue the first guiding signal manually or automatically by an algorithm according to the road condition or weather data reported by the sensor module 50.

[0056] In a preferred embodiment, the highway exit guiding device 100 based on road condition warning further includes: Road profile lights 60 provided on at least one side of the road in the rear section 21 of the road behind the highway exit 20 in the traveling direction; Or, A second sign unit 70 provided above the highway at the highway exit 20, and a third guiding information which can be displayed is provided on the second sign unit 70, and the third guiding information includes one or more of a prompt message for reminding the driver to drive out of the highway exit, a prompt message for traffic restriction in the front section, and a prompt message for the road condition or weather in the front section; The guiding method further includes the step of controlling the road profile lights to turn on, or controlling the second sign unit 70 to display the third guiding information.

[0057] Wherein, the second sign unit 70 is provided above the highway, which means that a sign spanning the highway can be used, or it can also be an ordinary sign provided on the side of the highway with a certain high brightness and the sign is suspended above the highway.

[0058] In this embodiment, the driver can be reminded when approaching the highway exit 20, so as to achieve a better control effect.

[0059] Preferably, the highway exit guiding device 100 based on road condition warning further includes a speaker 60; and the step S1 of the guiding method further includes controlling the speaker to emit a prompt message.

[0060] The present invention also provides a highway exit guiding system based on road condition warning, including a server and the highway exit guiding device according to any one of the above, and computer programs are stored on the server and the highway exit guiding device based on road condition warning. When the computer programs are executed, the steps of the guiding method according to any one of the above are implemented.

[0061] Exemplarily, the computer program of the computer-readable storage medium includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0062] The road exit guiding method, device and system based on road condition warning provided by the present invention are provided with a first indicating unit remotely controlled and arranged on the rear section of the road exit in the traveling direction of the road. The first indicating unit includes a plurality of first indication signs arranged at intervals, and each first indication sign includes a base and a sign board rotatably arranged on the base; the first indication sign is also remotely connected to a server to rotate on the base under the control of the server so as to switch between a display state facing the road and a non-display state facing away from the road; wherein, a first guiding information which can be displayed is arranged on the sign board, and the first guiding information includes a prompt information for reminding the driver to drive out of the road exit; when guiding and control are needed, the first indication sign is controlled to switch to the display state, and the first indication sign presents the first guiding information to the vehicle driver. Preferably, the first indication sign includes a first display surface, and the first display surface is an active light-emitting sign. The road exit guiding method, device and system based on road condition warning provided by the present invention do not require the traffic management department to urgently notify the maintenance workers to pick up the warning signs at the designated place and rush to the control section for temporary setting for warning and guiding; in addition, compared with the traditional variable information display screen, it can realize solar power supply, and has the advantages of simple control, low power consumption, good economy, high safety, etc.

[0063] In the description of this specification, the descriptions referring to the terms "one embodiment", "another embodiment", "other embodiments", or "the first embodiment ~ the Xth embodiment", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, method steps or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0064] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments.

[0065] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A highway exit guiding device based on road condition warning, characterized in that, It includes a first indicator unit arranged on a rear section of the highway exit in the direction of travel of the highway; the first indicator unit includes a plurality of first indicator signs arranged at intervals, each of the first indicator signs includes a base and a signboard rotatably arranged on the base; the first indicator signs are also remotely connected to a service end to control the signboard to rotate on the base under the control of the service end, so that the first indicator sign can switch between a display state facing the highway and a non-display state facing away from the highway; the signboard is provided with displayable first navigation information, and in the display state, the first indicator sign presents the first navigation information to the vehicle driver; wherein, the first navigation information includes driving operation prompt information that the driver needs to perform.

2. The highway exit guiding device based on road condition warning according to claim 1, characterized in that It also includes a sensor module arranged on a road section in front of a road exit along the direction of travel of the road; the sensor module is used to detect the road condition of the road, and the sensor module is communicatively connected to the service end.

3. The highway exit guidance device based on road condition warning according to claim 2, characterized in that, The sensor module includes one or more of a vehicle flow counting sensor, a visibility sensor, a comprehensive meteorological sensor, a rainfall sensor, a camera, and a millimeter wave radar.

4. The highway exit guiding device based on road condition warning according to claim 1, wherein The signboard has a first display surface and a back surface arranged relative to each other; wherein, the first display surface is used to display the first navigation information. In the display state, the first display surface is at an angle of 60-90° to the direction of travel to present the first navigation information to the vehicle driver; the first display surface is an actively luminous display surface; the first navigation information also includes prompt information to remind the road conditions or weather of the road section ahead of the highway exit.

5. The highway exit guiding device based on road condition warning according to claim 4, characterized in that In the display state, the first display surface forms an angle of 75-90° with the traveling direction.

6. The highway exit guiding device based on road condition warning according to claim 4, characterized in that, In the non-display state, the back side of the first sign is presented to the driver, and the back side displays the second navigation information; or, In the non-display state, the first display surface of the first sign faces toward or away from the road.

7. The highway exit guidance device based on road condition warning according to claim 1, characterized in that The plurality of first signboards arranged at intervals include at least one first signboard and at least one second signboard arranged in sequence from the highway exit toward the side away from the direction of travel; wherein the first signboard is provided with a warning light and / or a loudspeaker.

8. A guiding method for a highway exit guiding device based on road condition warning according to any one of claims 1-7, characterized in that, Including steps: S1, responding to the first navigation signal from the service end, controlling the first sign to switch to a display state to present the first navigation information to the vehicle driver; S2, responding to the second guide signal from the server, controlling the first sign to switch to a non-display state.

9. The guiding method according to claim 8, wherein, The highway exit guidance device based on road condition warning further includes: a road delineator light provided on at least one side of the highway located on a rear road section of the highway exit in the direction of travel of the highway; or, a second sign unit disposed above the highway at the highway exit, the second sign unit being provided with displayable third navigation information, the third navigation information including one or more of a prompt message reminding the driver to exit the highway exit, a prompt message indicating traffic restrictions on the road ahead, and a prompt message indicating road conditions or weather on the road ahead; The guiding method further includes the steps of: controlling the road contour lights to turn on, or controlling the second sign unit to display the third guiding information.

10. The guiding method according to claim 8, characterized in that, The highway exit guiding device based on road condition warning further includes a speaker; step S1 of the guiding method further includes controlling the speaker to emit a prompt message.

11. A highway exit guidance system based on road condition warning, characterized in that, It includes a server and the highway exit guiding device based on road condition warning according to any one of claims 1-7. Computer programs are stored on the server and the highway exit guiding device based on road condition warning. When the computer programs are executed, the steps of the guiding method according to any one of claims 8-10 are implemented.

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