CN113034975A - Expressway vehicle distance prompting system and method - Google Patents
Expressway vehicle distance prompting system and method Download PDFInfo
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- CN113034975A CN113034975A CN202110307297.6A CN202110307297A CN113034975A CN 113034975 A CN113034975 A CN 113034975A CN 202110307297 A CN202110307297 A CN 202110307297A CN 113034975 A CN113034975 A CN 113034975A
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Abstract
The invention discloses a highway vehicle distance prompting system and method, wherein the related vehicle distance prompting system comprises a detection device and a warning device; the detection device is in communication connection with the warning device; the detection device comprises a first controller, a vehicle sensor array and a road environment sensor; the road environment sensor is used for acquiring the environment information of a road and sending the acquired road environment information to the first controller; the vehicle sensor array is used for detecting whether a vehicle passes through, and if so, the acquired information of the vehicle is sent to the first controller; the first controller is used for receiving the road environment information sent by the road environment sensor and the information sent by the vehicle sensor array, processing the received road environment information and the information sent by the vehicle sensor array, and sending a processing result to the warning device; and the warning device is used for receiving the processing result sent by the first controller and providing warning information for the vehicle driver according to the processing result.
Description
Technical Field
The invention relates to the technical field of traffic safety, in particular to a highway vehicle distance prompting system and method.
Background
The speed of the highway is fast, the sufficient distance is a basic guarantee of driving safety, the judgment of the driver on the distance is often not accurate enough, and the purpose of the highway distance confirmation indicator is to establish reference and help the driver to judge the safety distance. The "road traffic safety law" stipulates that a vehicle traveling on an expressway should keep a distance of 100 meters or more from a vehicle ahead of the same lane when the vehicle speed exceeds 100 kilometers per hour, and should keep a distance of 50 meters or more from a vehicle ahead of the same lane when the vehicle speed is 100 kilometers per hour or less.
The vehicle runs fast on the highway, and a safe distance must be kept between vehicles in order to ensure safety. However, when driving, the distance between the vehicle and the front vehicle is difficult to judge by naked eyes, so that distance confirmation boards can be arranged on every section of the expressway to help drivers to confirm the distance between the driver and the front vehicle and adjust the distance. And (3) observing the front vehicle at the moment when your head passes through the 0-meter card, keeping the distance between the front vehicle and the rear vehicle at more than 50 meters if the rear vehicle of the front vehicle passes through the 50-meter card, keeping the distance between the front vehicle and the rear vehicle at more than 100 meters if the rear vehicle of the front vehicle passes through the 100-meter card, and so on. If no more than 50 meters exists, the point speed is reduced, and the moment when your head passes by 50 meters, preferably at least 100 meters of the tail of the front vehicle passes by. The method is purely based on manual judgment, and the effect is difficult to say well.
However, the actual situation is far more complex than the traffic regulations dictate, obviously due to the different braking distances, such as: traveling at 120 hours is significantly safer than traveling at 105 hours, since the safe headway is significantly greater. For another example: the vehicle runs at 120 hours in wet and slippery rainy days with poor sight, and compared with the vehicle running at 120 hours in sunny days with good sight, the vehicle is safer only if the safe distance is obviously larger. Other related situations such as this are not difficult to imagine.
Disclosure of Invention
The invention aims to provide a highway vehicle distance prompting system and method aiming at the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a highway vehicle distance prompt system comprises a detection device and a warning device; the detection device is in communication connection with the warning device; the detection device comprises a first controller, a vehicle sensor array and a road environment sensor; the first controller is respectively connected with the vehicle sensor array and the road environment sensor;
the road environment sensor is used for acquiring the environment information of a road and sending the acquired road environment information to the first controller;
the vehicle sensor array is used for detecting whether a vehicle passes through, and if so, the acquired information of the vehicle is sent to the first controller;
the first controller is used for receiving the road environment information sent by the road environment sensor and the information sent by the vehicle sensor array, processing the received road environment information and the information sent by the vehicle sensor array, and sending a processing result to the warning device;
and the warning device is used for receiving the processing result sent by the first controller and providing warning information for the vehicle driver according to the processing result.
Further, the processing of the received road environment information in the first controller specifically includes: and calculating the safe distance between the vehicle distance indication boards arranged on the expressway, and transmitting the calculated safe distance to the warning device.
Further, the processing of the information sent by the vehicle sensor array in the first controller specifically includes: and judging whether the vehicle sensor array in front of the current vehicle detects a signal that the vehicle passes through, if so, sending a warning command to a warning device.
Furthermore, the warning device comprises a sliding execution mechanism, a warning board and a second controller; the second controller is respectively connected with the sliding execution mechanism and the warning board;
the second controller is used for receiving the safety distance and the warning command sent by the first controller, sending a control command corresponding to the safety distance to the sliding execution mechanism and sending the received warning command to the warning board;
and the sliding execution mechanism is used for receiving the control command sent by the second controller and controlling each vehicle distance indicator to move to a safe distance position according to the received control command.
And the warning board is used for receiving the warning command sent by the second controller and providing warning information for the vehicle driver according to the safety distance.
Furthermore, the detection device also comprises a limit switch group which is connected with the first controller; the limit switch group is used for detecting whether each vehicle is moved to a safe distance position from the direction board.
Further, the sliding execution mechanism comprises an adaptive corrugated plate, a sliding module and a driving piece, the adaptive corrugated plate is symmetrically installed on the opposite side of the upright column where the guardrail corrugated plate of the expressway is located, the adaptive corrugated plate and the guardrail corrugated plate are matched to form a slide, the sliding module is in sliding connection with the slide, and the driving piece is installed between the sliding module and the slide and used for driving the sliding module to slide.
Furthermore, the sliding module comprises a bottom plate and concave parts on two sides of the bottom plate, the concave parts are buckled with the corrugated plates on the sides of the concave parts respectively, the driving part comprises a driving motor and a plurality of pulleys, the pulleys are installed on the inner side of the concave parts, and the driving motor is connected with any number of the pulleys in the pulleys to form a driving wheel.
Furthermore, a damping structure is arranged between the sliding module and the slideway;
the shock absorption structure comprises a sleeving groove arranged at the joint of the concave part and the bottom plate and an elastic connection structure between the concave part and the bottom plate, and the sleeving groove enables the concave part to be sleeved and connected with the two sides of the bottom plate; the shock absorption structure also comprises a shock absorber arranged at the end of the pulley;
the elastic connection structure comprises a sleeve, a sliding rod and an extension spring, the two concave parts are respectively and fixedly connected with the sleeve, the sleeve of the two concave parts is sleeved at two ends of the sliding rod, and the extension spring is sleeved on the sliding rod and clamped between the sleeves at two sides.
Correspondingly, the expressway vehicle distance prompting method comprises the following steps:
s1, acquiring environmental information of a road, and calculating a safety distance between each vehicle and the indicator according to the acquired environmental information of the road;
and S2, controlling each vehicle to move to a position with a safe distance from the indicator according to the received safe distance.
Further, the step S2 is followed by:
s3, judging whether at least one vehicle sensor detects a signal of the vehicle, if not, continuing to execute the step S3; if yes, calculating the speed of the current vehicle;
s4, judging whether the calculated speed of the current vehicle is smaller than a preset threshold value or not, if so, executing a step S5; if not, executing step S6;
s5, reading the detection information of the vehicle speed sensor adjacent to the current vehicle speed sensor in front of the current vehicle running direction, judging whether the adjacent vehicle speed sensor detects other vehicle information, if not, closing the warning command, and if so, executing the step S7;
s6, reading the detection information of at least one vehicle speed sensor which is separated from the current vehicle speed sensor in the front of the current vehicle running direction, judging whether the at least one vehicle speed sensor detects other vehicle information, if not, closing the warning command, and if so, executing the step S7;
and S7, sending a warning command and displaying warning information.
Compared with the prior art, the invention has the following beneficial effects:
1. the highway vehicle distance confirmation indicating system can change corresponding safe distance information according to weather information, has low requirement on the original highway guardrail modification, is simple and convenient to manufacture, and is energy-saving and environment-friendly to use;
2. the invention can remind the driver of the distance through the vehicle sensor, the road environment sensor and the distance indicator, and the warning information is prompted by the red LED in a flashing way and displays the specific lane number, thus the prompting performance of the driver is more clear and visual.
Drawings
FIG. 1 is a schematic diagram of a highway distance prompt system according to an embodiment;
FIG. 2 is a schematic structural diagram of a detecting device according to an embodiment;
FIG. 3 is a schematic structural diagram of a warning device according to an embodiment;
FIG. 4 is a schematic illustration of a highway layout according to an embodiment;
FIG. 5 is a schematic view of a display portion of a warning board according to an embodiment;
fig. 6 is a schematic overall structure diagram of a highway inter-vehicle distance confirmation indicating device provided by the second embodiment;
fig. 7 is an exploded schematic view of the overall structure of the expressway vehicle distance confirmation indicating device provided by the second embodiment;
fig. 8 is an enlarged schematic view of a dashed-line frame portion of an explosion diagram of a highway vehicle distance confirmation indicating device provided by the second embodiment;
FIG. 9 is a schematic view of a highway barrier of the highway headway confirmation indicating device provided in the second embodiment;
FIG. 10 is a schematic view of the expressway distance confirmation indicating apparatus according to the second embodiment before movement;
FIG. 11 is a schematic view of the second embodiment of the present disclosure after movement of the expressway distance confirmation instructing apparatus;
FIG. 12 is a schematic view of an application of the expressway distance confirmation indicating apparatus according to the second embodiment;
wherein, a first lane; b. a second lane; c. a third lane; d. an emergency lane; e. an isolation fence; f. a guardrail; g. a notice board; h. a first safety distance warning board; i. a second safety distance warning board; k. an array of vehicle sensors; 1. a solar panel; 2. a ball and socket joint connector; 3. an antenna; 4. a notice board frame; 5. a communication module; 6. a processing module; 7. a power supply module; 8. a display screen; 9. a support; 10. a moving mechanism; 1001. a base plate; 1002. a female member; 1003. a sleeve; 1004. an extension spring; 1005. a slide bar; 1006. a bi-directional motor; 1007. a driving wheel; 1008. a driven wheel; 1009. a shock absorber; 1010. a controller; 1011. a limit switch; 1012. a cover plate; 11. a slideway; 12. a column; 13. a limiting bulge; 14. and a baffle plate.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The invention aims to provide a highway vehicle distance prompting system and method aiming at the defects of the prior art.
Example one
The expressway vehicle distance prompting system provided by the embodiment comprises a detection device and a warning device, as shown in fig. 1-3; the detection device is in communication connection with the warning device.
The embodiment takes 3 lanes in the expressway with emergency lanes and 3 distance indicators beside the expressway as an example for specific explanation.
Fig. 4 is a schematic layout diagram of a highway, which includes a first lane a, a second lane b, a third lane c, an emergency lane d, a barrier e, a guardrail f, a first distance indicator (notice board) g, a second distance indicator (first safety distance warning board) h, a third distance indicator (second safety distance warning board) i, and a vehicle sensor (geomagnetic sensor) array k buried underground. The vehicle traveling direction in fig. 4 is from left to right. Each group of sensors is 3 and is arranged underground each lane, wherein the group k-1 is arranged at the position with a set distance on the left side of the notice board g, and the group k-2 is aligned with the notice board g in the transverse direction. When the first safety distance warning board h is located at 50m, the group k-3 is aligned with the first safety distance warning board h, and when the second safety distance warning board i is located at 100m, the group k-4 is aligned with the second safety distance warning board i in the transverse direction.
When all the devices are installed, the detection is started.
The detection device comprises a first controller, a vehicle sensor array, a road environment sensor, a limit switch group, a first wireless module, a first power supply and a notice board; the first controller is respectively connected with the vehicle sensor array, the road environment sensor, the limit switch group, the first wireless module and the notice board; the first power supply is used for providing electric energy for the detection device, wherein the power supply can be mains supply, solar energy, wind power or the like, and is not limited.
And the road environment sensor is used for acquiring the environment information of the road and sending the acquired road environment information to the first controller.
All install road environment sensor in every vehicle distance sign, environmental sensor includes but not limited to the all kinds of sensors that detect weather conditions, can contain: lighting, humidity, wind speed, etc. The purpose is to measure the environmental condition of the current road for subsequent control.
And the vehicle sensor array is used for detecting whether a vehicle passes through, and if so, the acquired information of the vehicle is sent to the first controller.
And vehicle sensor arrays are arranged at equal intervals underground in each lane in the range formed by the LED screen warning board g and the second safety distance warning board i. The distance between two adjacent sensor groups in the longitudinal direction may be slightly more than the length of a typical vehicle (e.g., 5m for a typical car). The function is as follows: sensing a vehicle, identifying a lane where the vehicle is located, calculating the speed of the vehicle, and calculating the distance between two vehicles on the same lane.
The vehicle sensor can be selected from various types, such as digital type, and when there is no vehicle, the output is assumed to be 0, and when there is a vehicle, the output is 1. The output of the whole process of leaving by the vehicle is as follows: 0-1-0. Of course, an analog type may be selected, which outputs a variable analog voltage according to the vehicle position. Without limitation, the technical effect can be achieved.
And the first controller is used for receiving the road environment information sent by the road environment sensor and the information sent by the vehicle sensor array, processing the received road environment information and the information sent by the vehicle sensor array, and sending the processing result to the warning device.
The processing of the received road environment information in the first controller specifically includes: and calculating the safe distance between the vehicle distance indication boards arranged on the expressway, and transmitting the calculated safe distance to the warning device.
The processing of the information sent by the vehicle sensor array in the first controller specifically includes: and judging whether a vehicle sensor group in front of the current vehicle detects a signal that the vehicle passes through, if so, sending a warning command to a warning device.
The first wireless module is used for wirelessly communicating with the second wireless module of the warning device; and an ISM frequency band and an RF short-distance radio frequency are adopted, and encryption communication is carried out.
And the limit switch group is used for detecting whether each vehicle is moved to a safe distance position from the direction board.
The notice board is used for displaying related prompt information; the method specifically comprises the following steps: when at least one sensor in the k-1 group senses the vehicle, the system starts to work, and the notice board displays relevant information, such as: and (5) entering a vehicle distance confirmation interval, please keep the safe vehicle distance and forbid lane changing.
The warning device comprises a sliding execution mechanism, a warning board, a second controller, a second wireless module and a second power supply; the second controller is respectively connected with the sliding execution mechanism, the warning board and the second wireless module; the second power supply is used for providing electric energy for the warning device, wherein the power supply can be mains supply, solar energy, wind power or the like, and is not limited.
The second wireless module is used for wirelessly communicating with the first wireless module of the detection device; and an ISM frequency band and an RF short-distance radio frequency are adopted, and encryption communication is carried out.
The second controller is used for receiving the safety distance and the warning command sent by the first controller, sending a control command corresponding to the safety distance to the sliding execution mechanism and sending the received warning command to the warning board;
and the sliding execution mechanism is used for receiving the control command sent by the second controller and controlling each vehicle distance indicator to move to a safe distance position according to the received control command.
And the warning board is used for receiving the warning command sent by the second controller and providing warning information for the vehicle driver according to the safety distance.
The default distances between the notice board g and the first safety distance warning board h, and between the first safety distance warning board h and the second safety distance warning board i are all 50 m. Fig. 5 is only a display portion of the warning board, which is a rectangular LED screen, and the display contents are lane numbers 1, 2, and 3 and their corresponding lane lines, the lane lines are normally on (or adopt a reflective material that is easy to see), and the lane numbers are turned off by default.
The warning board has one sliding executing mechanism connected to the guard rail and the warning board can move along the guard rail in the right and left longitudinal directions and stop controlled at any time. The warning board g is used as a starting point, the positions with the set distance in the longitudinal direction on the handrail are respectively provided with a limit switch, for example, the sliding distance of the first safety distance warning board h is 75m farthest away from the warning board g, and 1 limit switch is respectively arranged at the positions of 50m, 55m, 60m, 65m, 70m and 75m away from the warning board g (the positions can also be arranged at unequal intervals, and the specific number and the specific position can be determined according to actual needs). The sliding distance of the second safety distance warning board i is 125m farthest from the warning board g, and the limit switch is specifically arranged and refers to the first safety distance warning board h. All limit switches form a limit switch group. By default, the slide actuator of the first safety warning board h is at 50m, the limit switch at 50m is in a pressed state, the slide actuator of the second safety warning board i is at 100m, and the limit switch at 100m is in a pressed state, starting from the warning board g.
Compared with the prior art, the embodiment has the following beneficial effects:
1. the corresponding safe distance information can be changed according to the weather information, the requirement on the original high-speed guardrail modification is low, the whole device is simple and convenient to manufacture, and the use is energy-saving and environment-friendly;
2. can remind the driver to notice the car distance through vehicle sensor, road environment sensor and car distance sign, and warning information with red LED scintillation suggestion, and demonstrate concrete lane number, it is more clear and more clear, directly perceived to driver's promptness.
Example two
The difference between the expressway distance prompt system provided by the embodiment and the first embodiment is that:
this embodiment explains the structural composition of the distance indicator in detail.
As shown in fig. 6-12, the vehicle distance indicating plate comprises a power supply module, a road environment sensor, a prompting board/warning board, a support 9 and a moving mechanism 10, wherein the prompting board/warning board is fixed on the support 9, the moving mechanism 10 is connected to the bottom of the support 9, the power supply module is connected with the prompting board/warning board, the road environment sensor and the moving mechanism 10 supply power to the power supply module, the road environment sensor is used for acquiring road environment information and generating a moving instruction of the moving mechanism 10 according to the road environment information, the moving mechanism 10 is connected with the high-speed guardrail corrugated plate in a sliding mode and moves according to the moving instruction, and the prompting board/warning board displays vehicle safety distance information according to the moving position of the moving.
The moving mechanism 10 includes a sliding actuator and a limit switch set.
The sliding execution mechanism is designed based on the existing corrugated plate of the highway guardrail, the highway guardrail comprises upright posts 12 and the corrugated plates arranged on the upright posts 12, the existing corrugated plates comprise single-side corrugated plates on the upright posts 12 or double-side corrugated plates on the upright posts 12, when the existing corrugated plates are provided with the single-side corrugated plates, the existing corrugated plates can be buckled at two ends of the single corrugated plates for sliding through a sliding block with a buckling structure, when the existing corrugated plates are provided with the double-side corrugated plates or adaptive corrugated plates are additionally arranged on the single-side corrugated plates, the double-side corrugated plates or the adaptive corrugated plates are matched with the existing single-side corrugated plates of the highway guardrail to form a slideway 11 consisting of troughs of the corrugated plates at two sides, the sliding module is matched and slidably connected with the slideway 11, the sliding module comprises a bottom plate 1001 and concave parts 1002 at two sides of the bottom plate 1001, the bottom plate 1001 is connected with a support 9, the concave parts 1002 are respectively buckled with the troughs of, the shape of the concave part outside the groove can be designed according to the requirement, and the overall shape of the concave part is square, so that the concave part is safe, convenient and simple to manufacture.
A driving part is arranged between a sliding module and a slide way 11 to drive the sliding module to slide, the driving part can be in a form of driving a pulley by a driving motor or a form of driving a track by the driving motor, and the driving motor can be a stepping motor or a common two-way motor 1006, when the stepping motor is selected, the driving part can rotate for a specified number of turns according to a moving instruction, and the driving movement of a specified moving distance is carried out according to the adaptive pulley or track, the embodiment selects a more durable and lower-cost common two-way motor 1006, a limit part is designed to control the driving moving distance, concretely, the driving part comprises the two-way motor 1006 and a plurality of pulleys, the plurality of pulleys are arranged on the inner side of a concave part 1002, in order to prevent dust and sundries from interfering with the sliding of the pulleys, a cover plate 1012 is designed at the, the total amount of the pulleys is preferably four, the bidirectional motor 1006 is connected with one pulley to form a driving wheel 1007, and other sliding wheels are used as driven wheels 1008; the locating part of design is including the response end, the trigger end that correspond, installs respectively on slip module and slide 11, and it is spacing to cooperate the response, and the trigger end on the slide 11 sets up for a plurality of interval distances.
The locating part switch group can be the limit switch 1011 of push type, or the all kinds of hall element of induction type, the form is not limited, according to actual need and cost selection, the preferred limit switch 1011 that chooses for use the response end to set up for concave 1002 inboard of this embodiment, it is concrete can set up on apron 1012, misplace in the clearance department of pulley sliding track, trigger end is spacing arch 13 of interval setting on the slide 11, interval distance is preferably 5m, limit switch 1011 is when spacing arch 13, can be pushed down by the top, spacing arch 13 on the slide 11 can be chosen for use to glue and establish the installation bulge piece, perhaps magnetism is inhaled the installation and is inhaled the piece, perhaps weld the bulge piece, this design can avoid addding electronic component on high-speed wave form board, thereby need not complicated power supply wiring.
Furthermore, a damping structure is arranged between the sliding module and the slideway 11 to ensure the stability of the sliding module moving along the slideway 11, the specific design comprises a sleeving groove arranged at the joint of the concave part 1002 and the bottom plate 1001 and an elastic connecting structure between the sleeving groove and the elastic connecting structure, the sleeving groove enables the concave part 1002 to be sleeved and connected with the two sides of the bottom plate 1001, the sleeving groove is matched with the elastic connecting structure to enable the sliding module and the slideway 11 to form elastic fastening connection, the sliding module can adapt to a small amount of width change of the guardrail corrugated plate caused by the problems of assembly and connection, the corrugated plate slideway 11 is always fastened tightly, and the moving mechanism 10 is ensured to be tightly attached to the guardrail slideway 11; the sleeving purpose is to movably connect the movable bottom plate 1001 with the concave part 1002, and may also be replaced by a link-member linking manner, the elastic connection structure enables a certain clamping force to be formed between the bottom plate 1001 and the concave part 1002, and the implementation manners are many, so the structure is not limited, for example, a spring is additionally installed at the link-member or the elastic member is connected between the bottom plate 1001 and the concave part 1002, and the like, the elastic connection structure design of the embodiment includes a sleeve 1003, a sliding rod 1005 and a tension spring 1004, the two concave parts 1002 and the sleeve 1003 are respectively and fixedly connected, the sleeve 1003 of the two concave parts 1002 is sleeved at two ends of the sliding rod 1005, the tension spring 1004 is sleeved on the sliding rod 1005 and clamped between the sleeves 1003 at two sides, and the tension spring 1004 stretches the sleeve 1003 to slide on the sliding rod 1005 so as to stretch the two concave parts 1002 to form a; further, a damper 1009 is provided at the end of the pulley to reduce vibration due to unevenness of the corrugated plate, thereby further improving the stability of the movement of the moving mechanism 10.
The power module design of this embodiment is the solar energy power supply, including solar panel 1, and solar panel 1 passes through ball joint connecting piece 2 and is connected with support 9, and the angle can be adjusted according to the installation environment, and solar energy power supply is energy-concerving and environment-protective, if the mounted position wind energy that locates is sufficient, still can replace solar panel 1 with windmill type power generation facility.
The road environment information acquired by the road environment sensor in the embodiment is the weather information of the road where the road is located, the weather information can be realized by an inductor for sensing the environment, or the local weather condition information sent by a weather station is received by positioning, the positioning can be realized by arranging the positioning antenna 3 on the electronic vehicle distance notice board, the communication with the weather station can be integrated in the communication module 5, the notice board/the notice board comprises a display screen 8 and a notice board frame 4, the display screen 8 is arranged on the notice board frame 4, each electronic chip module is arranged in the inner space, the communication module 5 comprises a communication module 5 for communication, a processing module 6 for processing and a power supply module 7 for power supply management, the communication of each electronic component in the communication module 5 and the communication of each electronic component in the device are integrated, the processing module 6 integrates the processing of the road environment sensor for acquiring the road environment information and generating the mobile instruction of the mobile mechanism 10 according to the, The display screen 8 displays the processing of safe vehicle distance information according to the moving position of the moving mechanism 10, the power module 7 integrates the electric energy management of the solar panel 1, the display screen 8 and the driving motor, and the processing of the driving motor receiving the moving instruction is processed by the controller 1010 of the driving motor or is also integrated in the processing module 6.
Correspondingly, the indicating method based on the distance indicator comprises the following steps:
s1, the road environment sensor acquires road environment information, generates a moving instruction comprising a moving direction and a distance according to the road environment information, and sends the moving instruction to the moving mechanism 10;
s2, the moving mechanism 10 receives a moving instruction, the driving piece drives the sliding module to start sliding, the notice board/sign board moves along with the sliding module, when the limit switch induction end of the sliding module passes through the trigger end of the slideway 11, the triggering times are counted, the moved distance is calculated according to the triggering times and the set interval distance of the trigger end, and the moving is stopped when the distance required by the moving instruction is reached;
s3, the warning board/sign displays the current safety distance information according to the moving position of the moving mechanism 10.
In practical application, as shown in fig. 12, the first plate is a 0m position, and is fixedly installed, a common plate is adopted, if the vehicle distance increasing section affected by weather is 25m, then double-sided corrugated plates are assembled in the ranges of 50m-75m and 100m-125m, meanwhile, baffles 14 are arranged at the starting position and the ending position of the section on the corrugated plates to prevent accidental slipping, meanwhile, a limit device is arranged at a certain distance, for example, 5m, moves in the section according to weather conditions and displays a safe distance, if a notice board/warning board is at the starting position 50m, a limit switch 1011 is in a pressed state affected by a limit bulge 13, at the moment, the weather changes, raining starts, a road environment sensor obtains weather information, after processing, the safe distance is judged to be 60m, the difference between the safe distance and the current 50m is 10m, except that the current position needs to pass through 2 limit bulges 13, the moving mechanism 10 moves far away along, when the distance is 55m, the limit switch 1011 is pressed, the controller 1010 obtains a signal, counts for 5m, continues to move, the limit switch 1011 is loosened, when the distance is 60m, the limit switch 1011 is pressed by the limit protrusion 13 again, counts for 10m, the condition is met, the moving mechanism 10 stops, and the display screen 8 displays for 60 m.
The expressway vehicle distance confirmation indicating device and the indicating method thereof can adjust corresponding safe distance information according to weather information, and have low requirements on the transformation of the original expressway guardrail, the whole device is simple and convenient to manufacture, and the device is energy-saving and environment-friendly to use.
EXAMPLE III
The embodiment provides a highway vehicle distance prompting method, which comprises the following steps:
s1, acquiring environmental information of a road, and calculating a safety distance between each vehicle and the indicator according to the acquired environmental information of the road;
and S2, controlling each vehicle to move to a position with a safe distance from the indicator according to the received safe distance.
The method specifically comprises the following steps: the first controller reads the environmental condition through the road environmental sensor, and obtains a first safety distance and a second safety distance according to a built-in data model (the association relationship is that the environmental condition is the safety distance). The default vehicle speed is less than 100km/h, and it is assumed that the first safety distance warning board is located at 60m and the second safety distance warning board i is located at 120m according to the current environmental conditions, such as a certain degree of rainy days, and the warning board is taken as a starting point according to the data model. The first safety distance warning board is defaulted to be at a position of 50m, the second safety distance warning board i is defaulted to be at a position of 100m, the first controller sends a command of moving to 60m to the first safety distance warning board and sends a command of moving to 120m to the second safety distance warning board, after the two safety distance warning boards are received, the motor is controlled to move to a required distance in a correct direction, and the first controller detects whether the two safety distance warning boards move in place respectively through the limit switch group.
This embodiment adopts sliding construction's warning sign, and structural design is novel unique, can follow guardrail side-to-side movement, and the movement distance can flexibly change according to weather condition adaptability, and is more reasonable, safer
In this embodiment, step S2 is followed by:
s3, judging whether at least one vehicle sensor detects a signal of the vehicle, if not, continuing to execute the step S3; if yes, calculating the speed of the current vehicle;
s4, judging whether the calculated speed of the current vehicle is smaller than a preset threshold value or not, if so, executing a step S5; if not, executing step S6;
s5, reading the detection information of the vehicle speed sensor adjacent to the current vehicle speed sensor in front of the current vehicle running direction, judging whether the adjacent vehicle speed sensor detects other vehicle information, if not, closing the warning command, and if so, executing the step S7;
s6, reading the detection information of at least one vehicle speed sensor which is separated from the current vehicle speed sensor in the front of the current vehicle running direction, judging whether the at least one vehicle speed sensor detects other vehicle information, if not, closing the warning command, and if so, executing the step S7;
and S7, sending a warning command and displaying warning information.
The method specifically comprises the following steps: if the two safety distance warning boards move to corresponding positions, when the vehicle sensor array cannot detect any vehicle, the system is reset, initialized and then executed downwards.
Reading signals of the sensor group k-1, judging, and if no vehicle is detected, continuing to read the signals of the sensor group k-1; and if at least one sensor detects the vehicle, identifying the lane in which the vehicle is positioned, and reading signals of the sensor group k-2 so as to calculate the speed per hour of the vehicle.
If the vehicle speed is less than 100 km/h:
reading signals of the vehicle sensor group which is closest to the first safety distance warning board and on the right side and corresponds to the lane to judge whether a vehicle exists or not, if not, sending a closing warning command (if the current state is a closing state, the closing command does not need to be sent repeatedly) to the second controller by the first controller, turning off an LED screen of the warning board, and continuously reading the signals of the sensor group k-1; if the driver needs to take corresponding measures to ensure safe driving, the first controller sends a warning command to the second controller, an LED screen of the first warning board flashes red to display a corresponding lane number, and the driver is warned that the current distance between the driver and the vehicle is smaller than the safe distance.
If the vehicle speed is more than or equal to 100 km/h:
reading signals of the vehicle sensor group which is closest to the second safety distance warning board and on the right side and corresponds to the lane to judge whether a vehicle exists or not, if not, sending a closing warning command (if the current state is a closing state, the closing command does not need to be sent repeatedly) to the second controller by the first controller, turning off an LED screen of the warning board, and continuously reading the signals of the sensor group k-1; if the driver is smaller than the safe distance, the first controller sends a warning command to the second controller, an LED screen of the warning board flashes red to display the corresponding lane number, and the driver needs to take corresponding measures to ensure safe driving after warning.
It should be noted that, because the geomagnetic sensor can communicate with the sign, the geomagnetic sensor disposed in the highway can send the detected information to the sign closest to the geomagnetic sensor.
In this embodiment, a period for acquiring the environmental sensing data may be set, so that the distance position where each warning board should be located may be adjusted in time.
The warning information of this embodiment is with red LED scintillation suggestion, and shows concrete lane number, and is more clear and more direct-viewing to driver's promptness.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A highway vehicle distance prompt system is characterized by comprising a detection device and a warning device; the detection device is in communication connection with the warning device; the detection device comprises a first controller, a vehicle sensor array and a road environment sensor; the first controller is respectively connected with the vehicle sensor array and the road environment sensor;
the road environment sensor is used for acquiring the environment information of a road and sending the acquired road environment information to the first controller;
the vehicle sensor array is used for detecting whether a vehicle passes through, and if so, the acquired information of the vehicle is sent to the first controller;
the first controller is used for receiving the road environment information sent by the road environment sensor and the information sent by the vehicle sensor array, processing the received road environment information and the information sent by the vehicle sensor array, and sending a processing result to the warning device;
and the warning device is used for receiving the processing result sent by the first controller and providing warning information for the vehicle driver according to the processing result.
2. The expressway distance prompting system according to claim 1, wherein the processing of the received road environment information in the first controller is specifically: and calculating the safe distance between the vehicle distance indication boards arranged on the expressway, and transmitting the calculated safe distance to the warning device.
3. The system for prompting the distance between vehicles on the expressway according to claim 2, wherein the processing of the information sent by the vehicle sensor array in the first controller is specifically as follows: and judging whether the vehicle sensor array in front of the current vehicle detects a signal that the vehicle passes through, if so, sending a warning command to a warning device.
4. The expressway distance prompt system of claim 3, wherein the warning device comprises a sliding actuator, a warning board and a second controller; the second controller is respectively connected with the sliding execution mechanism and the warning board;
the second controller is used for receiving the safety distance and the warning command sent by the first controller, sending a control command corresponding to the safety distance to the sliding execution mechanism and sending the received warning command to the warning board;
and the sliding execution mechanism is used for receiving the control command sent by the second controller and controlling each vehicle distance indicator to move to a safe distance position according to the received control command.
And the warning board is used for receiving the warning command sent by the second controller and providing warning information for the vehicle driver according to the safety distance.
5. The expressway distance prompt system according to claim 4, wherein the detection device further comprises a limit switch group connected with the first controller; the limit switch group is used for detecting whether each vehicle is moved to a safe distance position from the direction board.
6. The expressway vehicle distance prompting system of claim 5, wherein the sliding executing mechanism comprises an adaptive corrugated plate, a sliding module and a driving piece, the adaptive corrugated plate is symmetrically arranged on the opposite side of the upright column where the guardrail corrugated plate of the expressway is located, the adaptive corrugated plate and the guardrail corrugated plate are adaptive to form a slide way, the sliding module is adaptive to the slide way and is in sliding connection with the slide way, and the driving piece is arranged between the sliding module and the slide way and used for driving the sliding module to slide.
7. The system for prompting the distance between the motorways and the vehicle as claimed in claim 6, wherein the sliding module comprises a bottom plate and concave parts at two sides of the bottom plate, the concave parts are respectively buckled with the corrugated plates at the sides, the driving part comprises a driving motor and a plurality of pulleys, the plurality of pulleys are arranged at the inner sides of the concave parts, and the driving motor is connected with any number of the plurality of pulleys to form a driving wheel.
8. The expressway vehicle distance prompting system according to claim 7, wherein a shock absorption structure is arranged between the sliding module and the slide way;
the shock absorption structure comprises a sleeving groove arranged at the joint of the concave part and the bottom plate and an elastic connection structure between the concave part and the bottom plate, and the sleeving groove enables the concave part to be sleeved and connected with the two sides of the bottom plate; the shock absorption structure also comprises a shock absorber arranged at the end of the pulley;
the elastic connection structure comprises a sleeve, a sliding rod and an extension spring, the two concave parts are respectively and fixedly connected with the sleeve, the sleeve of the two concave parts is sleeved at two ends of the sliding rod, and the extension spring is sleeved on the sliding rod and clamped between the sleeves at two sides.
9. A prompting method of a highway vehicle distance prompting system based on any one of claims 1-8, characterized by comprising the following steps:
s1, acquiring environmental information of a road, and calculating a safety distance between each vehicle and the indicator according to the acquired environmental information of the road;
and S2, controlling each vehicle distance indication board to move to a safe distance position according to the received safe distance.
10. The method as claimed in claim 9, wherein the step S2 is followed by the step of:
s3, judging whether at least one vehicle sensor detects a signal of the vehicle, if not, continuing to execute the step S3; if yes, calculating the speed of the current vehicle;
s4, judging whether the calculated speed of the current vehicle is smaller than a preset threshold value or not, if so, executing a step S5; if not, executing step S6;
s5, reading the detection information of the vehicle speed sensor adjacent to the current vehicle speed sensor in front of the current vehicle running direction, judging whether the adjacent vehicle speed sensor detects other vehicle information, if not, closing the warning command, and if so, executing the step S7;
s6, reading the detection information of at least one vehicle speed sensor which is separated from the current vehicle speed sensor in the front of the current vehicle running direction, judging whether the at least one vehicle speed sensor detects other vehicle information, if not, closing the warning command, and if so, executing the step S7;
and S7, sending a warning command and displaying warning information.
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