An intelligent traffic information platform for expressways

Abstract

The application is a kind of intelligent traffic information platform for expressway, which comprises an information publishing center for publishing traffic information, a vehicle-mounted collector and publisher arranged in each vehicle for collecting vehicle driving dynamic data and publishing information, road sign data transmitters arranged along the side lines of the central separation belt of the expressway at certain interval, and communication base stations arranged along the extension direction of the expressway. The vehicle-mounted collector and publisher is associated with the vehicle information of each vehicle. The application builds an expressway data interaction and information publishing platform, realizes data intercommunication, and can transmit each item of information and announcement to each vehicle after summarizing and integrating, so as to ensure the timeliness of information publishing and updating, provide timely, effective and accurate auxiliary guidance for driving, ensure driving safety, and help the intelligent development of expressway in China.

Description

Technical Field

[0001] This invention relates to the field of traffic service platform technology, specifically to an intelligent traffic information platform for highways. Background Technology

[0002] my country's expressway system is at a very high level globally, considered one of the largest and most developed in the world. Its vast network is one of the longest in the world, employing advanced technologies and construction standards, including numerous expressway bridges, tunnels, and interchanges. Simultaneously, my country is also promoting the development of intelligent transportation systems, including intelligent toll collection systems and traffic monitoring and management systems, to improve the operational efficiency and safety of its expressways.

[0003] When driving on highways, traffic violations, traffic jams, severe weather, and emergencies are the main causes of traffic accidents. To avoid highway accidents, drivers and passengers need to keep track of the dynamic information on highway traffic conditions. Pre-planning the traffic conditions along the route is an effective way to prevent accidents.

[0004] Currently, drivers and passengers mainly rely on announcements from highway traffic monitoring and command centers, information from major map navigation systems, and other channels to understand dynamic information on highway traffic conditions. However, the information provided by these channels is disorganized and cannot be fully disseminated, resulting in a certain lag. Especially during emergencies, the update speed cannot meet the real-time requirements, and drivers and passengers cannot obtain the latest traffic information in a timely manner. In addition, the information from various channels may be inaccurate or incomplete, and sometimes drivers and passengers may receive incorrect traffic information, leading to misunderstandings or inappropriate driving decisions. Summary of the Invention

[0005] The purpose of this invention is to provide a smart traffic information platform for highways that can automatically export medicinal decoctions and filter medicinal residues, thereby effectively solving the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] A smart traffic information platform for highways includes an information release center for publishing traffic information, an on-board data collector installed in each vehicle for collecting vehicle driving dynamic data and publishing information, road sign data transmitters arranged at 30-50m intervals along both sides of the central median of the highway, and communication base stations arranged at 10-15km intervals along the extension direction of the highway.

[0008] The spacing between road sign data transmitters is smaller than the spacing between communication base stations, and multiple road sign data transmitters located within the signal coverage area of ​​the same communication base station share that communication base station;

[0009] The vehicle-mounted data acquisition and dissemination device and the road sign data transmission device achieve directional signal communication through an AB dual-frequency matching mechanism, wherein:

[0010] (i) Road sign data transmitters on the same side of the central median use the same frequency band (Type A or Type B);

[0011] (ii) The opposite road sign data transmitter uses the opposite frequency band (Type B or Type A);

[0012] (III) The vehicle-mounted data acquisition and dissemination device automatically switches to the matching frequency band according to the driving lane;

[0013] Along the direction of the highway, vehicle-mounted data acquisition and dissemination devices, road sign data transmission devices, and communication base stations form a secondary communication network, and several secondary communication networks and the information dissemination center form a primary communication network.

[0014] Preferably, the main processor in the information release center has four communication ports. One communication port communicates with the communication base station in the primary communication network, and the other three communication ports communicate with the highway traffic monitoring and command center, the map manufacturer's server, and the meteorological bureau's server, respectively. The information release center retrieves various data from the primary communication network, the highway traffic monitoring and command center, the map manufacturer's server, and the meteorological bureau's server, analyzes and processes the data, and summarizes it to form highway driving dynamic information. The highway driving dynamic information is then transmitted back to the vehicle-mounted data acquisition and publishing device in each vehicle, which receives the data and publishes it in real time.

[0015] Preferably, the vehicle-mounted data acquisition and publishing device includes a housing installed inside the vehicle and a first microprocessor, a first wireless transmitting module, a first wireless receiving module, a Bluetooth module, and a collision sensor arranged inside the housing. The first microprocessor is electrically connected to the first wireless transmitting module, the first wireless receiving module, the Bluetooth module, and the collision sensor, respectively. The first microprocessor is connected to the vehicle's infotainment system to achieve data interaction and transmission. The Bluetooth module can be paired with a mobile device via Bluetooth.

[0016] Preferably, the road sign data transmitter includes a crash base fixed to the central median, a pole fixed to the crash base, a pole installed in a first cavity of the pole, a second microprocessor, a second wireless receiving module, a second wireless transmitting module, a wireless communication module, and a high-definition camera installed in the second cavity of the pole. The second microprocessor is electrically connected to the second wireless receiving module, the second wireless transmitting module, the wireless communication module, and the high-definition camera. The second wireless receiving module is signal-matched with the first wireless transmitting module, and the second wireless transmitting module is signal-matched with the first wireless receiving module. The wireless communication module communicates with the communication base station. The high-definition camera is used to capture and collect image information of passing vehicles in real time.

[0017] Preferably, the anti-collision base includes a first fixed seat, a first mounting seat, a first sphere, a first rod, a second mounting seat, a second sphere, and a second rod. The first fixed seat is fixed to the central isolation strip. The first mounting seat is fixed to the top of the first fixed seat. The first mounting seat has an inner cavity. The top of the first mounting seat has a first spherical groove. The top of the first spherical groove extends through the outside of the first mounting seat, and the bottom communicates with the inner cavity. The first sphere is movably fitted into the first spherical groove, with its top protruding above the first mounting seat and its bottom extending into the inner cavity. The inner cavity is filled with a rubber filler, which has a concave cavity. A protruding rod is fixed to the bottom of the first sphere. The bottom of the first sphere and the protruding rod... The first rod is fixed to the top of the first sphere and extends vertically upward. The second mounting base is fixed to the top of the first rod. A first spring is sleeved on the outside of the first rod. One end of the first spring is fixed to the upper surface of the first mounting base, and the other end is fixed to the bottom of the second mounting base. The top of the second mounting base is provided with a second spherical groove, and the top of the second spherical groove penetrates through the second mounting base. The second sphere is movably fitted in the second spherical groove, and its top protrudes above the second mounting base. The second rod is vertically fixed to the top of the second sphere. The upright is vertically fixed to the top of the second rod. A second spring is sleeved on the outside of the second rod. One end of the second spring is fixed to the top of the second mounting base, and the other end is fixed to the bottom of the upright.

[0018] The bottom of the first sphere is embedded in the cavity filled with rubber filler (314), and the protruding rod is coupled with the deformation energy absorption structure of the rubber filler.

[0019] Preferably, the dynamic information for highway driving includes: simulated images of the surrounding environment, road conditions and weather information, highway announcements, and safe driving correction reminders.

[0020] Preferably, the simulated image of the driving environment includes a navigation map displayed on the in-vehicle screen, images of surrounding vehicles displayed on the map, the speeds of surrounding vehicles and their distances from the vehicle marked on the map, as well as lane change and speed change warnings. The navigation map displays the influence of surrounding vehicles, their speeds, and their distances from the vehicle in real time.

[0021] Preferably, the road and weather information includes the current highway road conditions, congestion, and real-time weather conditions ahead.

[0022] Preferably, highway announcements include information on temporary road closures, vehicle stops for inspection, accidents, and construction, while safe driving reminders include reminders for speeding, traffic violations, and driver fatigue.

[0023] The AB dual-frequency matching mechanism is executed as follows:

[0024] (a) For vehicles traveling from A to B, the on-board data acquisition and dissemination device starts the A-frequency module and shuts down the B-frequency module, matching the A-type road sign data transmission device on the same side.

[0025] (ii) For vehicles traveling from B to A, activate the B frequency module and deactivate the A frequency module to match the B-type road sign data transmitter on the same side.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0027] This invention enables data exchange between an information release center and the highway traffic monitoring and command center, map provider servers, and meteorological bureau servers. A secondary communication network, comprised of communication base stations and several vehicle-mounted data acquisition and dissemination devices and road sign data transmitters within their signal coverage areas, facilitates local data exchange. By connecting all communication base stations deployed along the highway route to the information release center, global data exchange across the entire highway is achieved. This establishes a high-speed data interaction and information release platform, enabling data exchange and allowing various information and announcements to be aggregated and transmitted back to each vehicle, ensuring timely information release and updates. This provides timely, effective, and accurate auxiliary guidance for driving, ensuring driving safety and contributing to the intelligent development of my country's highways. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of highway driving according to the present invention;

[0029] Figure 2 This is a schematic diagram of the primary communication network structure in this invention;

[0030] Figure 3 This is a schematic diagram of data exchange in the information publishing center of this invention;

[0031] Figure 4 This is a detailed structural diagram of the vehicle-mounted data acquisition and publishing device in this invention;

[0032] Figure 5 This is a schematic diagram of the internal structure of the vehicle-mounted data collection and publishing device in this invention;

[0033] Figure 6 This is a schematic diagram of the road sign data transmitter structure in this invention;

[0034] Figure 7 This is a schematic diagram of the anti-collision base structure in this invention;

[0035] Figure 8 This is a schematic diagram of the cross-sectional structure of the anti-collision base in this invention;

[0036] Figure 9 This is a schematic diagram of the internal structure of the upright in this invention;

[0037] Figure 10 This is a system block diagram of the present invention.

[0038] In the diagram: 01, Primary Communication Network; 02, Secondary Communication Network; 1, Information Release Center; 11, Main Processor; 12, Highway Traffic Monitoring and Command Center; 13, Map Provider Server; 14, Meteorological Bureau Server; 2, Vehicle-Mounted Data Acquisition and Release Device; 21, Shell; 211, Vehicle System; 212, Mobile Terminal; 22, First Microprocessor; 23, First Wireless Transmitter Module; 24, First Wireless Receiver Module; 25, Bluetooth Module; 26, Collision Sensor; 3, Road Sign Data Transmitter; 31, Anti-collision Base; 311, First Fixing Base; 312, First Mounting Base; 3121. 3122. Inner cavity; 3123. First spherical groove; 313. First sphere; 3131. Protruding rod; 314. Rubber filler; 3141. Concave cavity; 315. First rod body; 316. Second mounting base; 3161. Second spherical groove; 317. First spring; 318. Second sphere; 319. Second rod body; 3110. Second spring; 32. Upright rod; 321. First cavity; 322. Second cavity; 33. Second microprocessor; 34. Second wireless receiving module; 35. Second wireless transmitting module; 36. Wireless communication module; 37. High-definition camera; 4. Communication base station. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figures 1-10This invention provides an intelligent traffic information platform for highways. The platform includes an information release center 1 for publishing traffic information, an on-board data collector 2 installed in each vehicle for collecting vehicle driving dynamic data and publishing information, road sign data transmitters 3 arranged at certain intervals along both sides of the central median of the highway, and communication base stations 4 arranged at intervals along the extension direction of the highway. The interval between the road sign data transmitters 3 is 30-50m, and the interval between the communication base stations 4 is 10-15km. The on-board data collector 2 is associated and matched with the vehicle information of each vehicle. The vehicle information includes the owner's identity information, license plate number, and vehicle registration information, and after matching any of the information, other corresponding information can be retrieved in real time.

[0041] The vehicle-mounted data acquisition and dissemination unit 2 and the road sign data transmission unit 3 achieve directional signal communication through an AB dual-frequency matching mechanism, wherein:

[0042] (i) The road sign data transmitters 3 on the same side of the central median use the same frequency band (type A or type B);

[0043] (ii) The opposite road sign data transmitter 3 uses the opposite frequency band (Type B or Type A);

[0044] (III) The vehicle-mounted data acquisition and distribution device 2 automatically switches to the matching frequency band according to the driving lane;

[0045] The spacing between the road sign data transmitters 3 is smaller than the spacing between the communication base stations 4. Along the highway extension direction, some road sign data transmitters 3 located on both sides of the communication base station 4 share the same communication base station 4. The vehicle-mounted data acquisition and dissemination unit 2 and the road sign data transmitters 3 communicate with each other, as do the road sign data transmitters 3 and the communication base station 4. Several vehicle-mounted data acquisition and dissemination units 2, several road sign data transmitters 3, and several communication base stations 4 within the corresponding section area along the highway extension direction form a secondary communication network 02. These secondary communication networks 02 along the highway extension direction and the information dissemination center 1 form a primary communication network 01 that communicates with the information dissemination center 1. The main processor 11 in the information release center 1 has four communication ports. One of the communication ports communicates with the communication base station 4 in the primary communication network 01. The other three communication ports communicate with the highway traffic monitoring and command center 12, the map manufacturer server 13, and the meteorological bureau server 14, respectively. The information release center 1 retrieves various data from the primary communication network 01, the highway traffic monitoring and command center 12, the map manufacturer server 13, and the meteorological bureau server 14, analyzes and processes the data, summarizes it to form highway driving dynamic information, and transmits the highway driving dynamic information back to the vehicle-mounted data acquisition and publishing device 2 in each vehicle. The vehicle-mounted data acquisition and publishing device 2 receives the data and publishes it in real time.

[0046] The secondary communication network 02, consisting of the communication base station 4 and several vehicle-mounted data acquisition and dissemination devices 2 and road sign data transmission devices 3 within its signal coverage area, has a local data interconnection function. It connects the signals of the communication base stations 4 arranged along the highway route to the information dissemination center 1, realizing data interconnection in the entire high-speed global domain. Thus, it constitutes the entire high-speed data interaction and information dissemination platform.

[0047] Please see Figure 4 , Figure 5 and Figure 10 The vehicle-mounted data acquisition and distribution device 2 includes a housing 21 installed inside the vehicle and a first microprocessor 22, a first wireless transmitting module 23, a first wireless receiving module 24, a Bluetooth module 25, and a collision sensor 26 arranged inside the housing 21. The first microprocessor 22 is electrically connected to the first wireless transmitting module 23, the first wireless receiving module 24, the Bluetooth module 25, and the collision sensor 26. The first microprocessor 22 is connected to the vehicle's infotainment system 211 to achieve data interaction and transmission. The Bluetooth module 25 can be paired with a mobile terminal 212 via Bluetooth. The first microprocessor 22 can read data from the vehicle's infotainment system 211, such as the vehicle's real-time speed and real-time rotation. The first microprocessor 22 collects real-time data on the vehicle's speed and steering angle, and calculates the vehicle's displacement in the direction of lane extension and in the direction perpendicular to the direction of lane extension, thereby determining whether the vehicle has changed lanes. In addition, the first processor can transmit data to the vehicle system 211, which then transmits the data to the vehicle screen for playback. Furthermore, for vehicles without an in-vehicle display, information data can be transmitted via Bluetooth to the mobile terminal 212 for display. The mobile terminal 212 can be a mobile phone, tablet, or other electronic device that supports Bluetooth and display functions.

[0048] Please see Figures 7-10The road sign data transmitter 3 includes a crash base 31 fixed to the central median, a pole 32 fixed to the crash base 31, a pole 32 installed in a first cavity 321 of the pole 32, a second microprocessor 33, a second wireless receiving module 34, a second wireless transmitting module 35, and a wireless communication module 36. The second microprocessor 33 is electrically connected to the second wireless receiving module 34, the second wireless transmitting module 35, the wireless communication module 36, and a high-definition camera 37. The second wireless receiving module 34 is signal-matched with the first wireless transmitting module 33, and the second wireless transmitting module 35 is signal-matched with the first wireless receiving module 36. Block 24 signal matching, wireless communication module 36 and communication base station 4 data signal interoperability, first microprocessor 22 can send data through first wireless transmission module 23 and be matched and received by second wireless receiving module 34. Second wireless receiving module 34 can transmit data sent by first microprocessor 22 to second microprocessor 33. Second microprocessor 33 can send data through second wireless transmission module 35 and be matched and received by first wireless receiving module 24. First wireless receiving module 24 then transmits data to first microprocessor 22, thereby realizing data interoperability between vehicle-mounted data acquisition and publishing device 2 and road sign data transmission device 3.

[0049] It is worth noting that, since the road sign data transmitters 3 are spaced apart on both sides of the central median, signal interference is easily caused when the vehicle-mounted data acquisition and dissemination device 2 and the road sign data transmitters 3 communicate. Therefore, the road sign data transmitters 3 are configured with two models. The difference is that the second wireless receiving module 34 and the second wireless transmitting module 35 in the two models of road sign data transmitters 3 each have two models. The two models of the second wireless receiving module 34 are defined as wireless receiving module A and wireless receiving module B, and the two models of the second wireless transmitting module 35 are defined as wireless transmitting module A and wireless transmitting module B. One type of road sign data transmitter 3 has wireless receiving module A and wireless transmitting module A, while the other type of road sign data transmitter 3 has wireless receiving module B and wireless transmitting module B. The two types of road sign data transmitters 3 are respectively located on both sides of the central median.

[0050] In addition, the first wireless transmitting module 23 and the first wireless receiving module 24 in the vehicle-mounted data acquisition and dissemination device 2 each have two models. The two models of the first wireless transmitting module 23 are wireless transmitting module a and wireless transmitting module b, and the two signals of the first wireless receiving module 24 are wireless receiving module a and wireless receiving module b. When a vehicle enters the lane on the corresponding side, the first wireless transmitting module 23 and the first wireless receiving module 24 of the corresponding model in the vehicle-mounted data acquisition and dissemination device 2 communicate and match with the road sign data transmission device 3 of the corresponding model on that side.

[0051] For example, on the highway from point A to point B, vehicle a travels from A to B. At this time, the wireless transmitter module a and wireless receiver module a inside vehicle a start working, while the wireless transmitter module b and wireless receiver module b stop working. This will match the signal of the wireless receiver module A and wireless transmitter module A on the same side of the lane. Similarly, vehicle B travels from B to A. At this time, the wireless transmitter module b and wireless receiver module b inside vehicle b start working, while the wireless transmitter module a and wireless receiver module a stop working. This will match the signal of the wireless receiver module B and wireless transmitter module B on the same side of the lane, thereby avoiding signal interference and achieving accurate data transmission.

[0052] In addition, the signal coverage of two adjacent road sign data transmitters 3 on the same side overlaps, thus ensuring that the vehicle-mounted data acquisition and dissemination device 2 following the vehicle can transmit signals with the road sign data transmitter 3 at all times, so as to achieve timely updates of information.

[0053] A high-definition camera 37 is also installed in the second cavity 322 of the pole 32. The high-definition camera 37 is used to capture and collect image information of passing vehicles in real time. The high-definition camera 37 can capture images of the lane and vehicles in real time. Using image recognition technology, the vehicle license plate can be obtained. The license plate is matched with the corresponding number of the vehicle-mounted data acquisition and publishing device 2. According to the lane where the vehicle is located, the lane where the vehicle is located can be determined. The real-time speed and real-time steering angle of the vehicle are collected by the first microprocessor 22. The displacement of the vehicle in the direction of lane extension and the displacement in the direction perpendicular to the direction of lane extension are calculated. Thus, the information of vehicle lane change and lane location can be updated, so as to determine whether the vehicle has changed lanes.

[0054] Furthermore, the road sign data transmitter 3 is located on the central median, making it susceptible to damage from vehicle collisions in the event of an accident. This undoubtedly increases the investment and maintenance costs of highway traffic equipment. This application addresses this by mounting the pole 32 on the crash base 31. The crash base 31 reduces the probability of the pole 32 being damaged by a collision, thereby lowering the investment cost of highway traffic equipment.

[0055] Specifically, please refer to 7 and Figure 8The anti-collision base 31 includes a first fixed base 311, a first mounting base 312, a first sphere 313, a first rod 315, a second mounting base 316, a second sphere 318, and a second rod 319. The first fixed base 311 is fixed to the central isolation strip. The first mounting base 312 is fixed to the top of the first fixed base 311. The first mounting base 312 has an inner cavity 3121. The top of the first mounting base 312 has a first spherical groove 3122. The top of the first spherical groove 3122 extends through the outside of the first mounting base 312, and the bottom end extends through the inner cavity 3121. The first sphere 313 is movably fitted into the first spherical groove 3122, with its top protruding above the first mounting base 312 and its bottom extending into the inner cavity 3121. The first rod 315 is fixed to the top of the first sphere 313 and vertically... Extending straight upwards, a second mounting base 316 is fixed to the top of a first rod 315. A first spring 317 is sleeved on the outside of the first rod 315. One end of the first spring 317 is fixed to the upper surface of the first mounting base 312, and the other end is fixed to the bottom of the second mounting base 316. A second spherical groove 3161 is provided at the top of the second mounting base 316. The top of the second spherical groove 3161 passes through the second mounting base 316. A second ball 318 is movably matched and installed in the second spherical groove 3161, and its top end protrudes above the second mounting base 316. A second rod 319 is vertically fixed at the top of the second ball 318. A vertical pole 32 is vertically fixed at the top of the second rod 319. A second spring 3110 is sleeved on the outside of the second rod 319. One end of the second spring 3110 is fixed to the top of the second mounting base 316, and the other end is fixed to the bottom of the vertical pole 32.

[0056] When the anti-collision base 31 is not impacted, the first spring 317 connects to the second mounting base 316 and the first mounting base 312 at both ends, causing the second mounting base 316 and the first rod 315 to extend vertically. The second spring 3110 connects to the upright 32 and the second mounting base 316, causing the upright 32 and the second rod 319 to extend vertically, thus facilitating the high-definition camera 37 to capture images and exchange signals. When the anti-collision base 31 is impacted by a vehicle collision, the upright 32 is subjected to force due to the movement provided by the second ball 318. The first tilt occurs when the pole tilts in the direction of impact. At the same time, the first ball 313 provides another movement effect, causing the second mounting base 316 and the first rod 315 to tilt a second time. The cumulative tilt of the two tilts allows the pole 32 to tilt at a large angle below the height of the vehicle chassis and penetrate under the vehicle to avoid damage from the collision. In addition, after the collision structure removes the accident vehicle, the elastic force of the second rod 319 and the first spring 317 can drive the pole 32 back to its vertical state, thus enabling the road sign data transmitter 3 to cope with collisions.

[0057] Meanwhile, the second sphere 318 and the first sphere 313 have a ball joint effect, which allows the upright 32 to tilt in any direction, thus coping with collisions and impacts from different directions, making it highly versatile.

[0058] In addition, the inner cavity 3121 is filled with a rubber filler 314, and the rubber filler 314 has a concave cavity 3141. The bottom of the first ball 313 is fixed with a protruding rod 3131. The bottom of the first ball 313 and the protruding rod 3131 are matched and embedded in the concave cavity 3141. When a collision occurs, the first ball 313 moves, which in turn drives the protruding rod 3131 to move. At this time, the protruding rod 3131 and the rubber filler 314 are squeezed against each other, causing the rubber filler 314 to deform, which plays an energy absorption and buffering role. It can effectively buffer the impact of the collision, further reduce the damage to the upright pole 32, and improve the protection effect of the road sign data transmitter 3.

[0059] The bottom of the first sphere 313 is embedded in the cavity 3141 of the rubber filler 314. The protruding rod 3131 is coupled with the deformation energy absorption structure of the rubber filler. The double ball hinge + double spring + rubber energy absorption composite structure improves the impact resistance of the equipment.

[0060] Highway driving dynamic information includes: simulated images of the driving environment, road conditions and weather information, highway announcements, and safe driving correction reminders.

[0061] The simulated image of the driving environment includes a navigation map displayed on the in-vehicle screen, images of surrounding vehicles displayed on the map, the speeds of surrounding vehicles and their distances from the vehicle marked on the map, as well as lane change and speed change warnings. Among these, the navigation map displays the impact of surrounding vehicles, their speeds, and their distances from the vehicle in real time.

[0062] Specifically, the information publishing center 1 obtains the map cross-section from the map provider's server 13 and transmits it to the in-vehicle screen or mobile terminal 212 for display. The first microprocessor 22 obtains the GPS positioning information built into each vehicle, integrates the map and vehicle positioning information, and then distributes it to each vehicle. The display is centered on the vehicle, with the real-time positioning of other vehicles around the vehicle. The in-vehicle data collector 2 collects the driving speed of each vehicle, calculates the distance between each vehicle and the vehicle being measured, and displays and publishes the information. In addition, when surrounding vehicles accelerate, decelerate, or change lanes, a warning can be displayed on the screen in a timely manner to remind the vehicle to pay attention, effectively reducing the accident rate.

[0063] The road and weather information includes current highway road conditions, congestion, and real-time weather conditions ahead. It obtains traffic and congestion information from the highway traffic monitoring and command center 12, as well as weather information from the meteorological bureau server 14, and publishes it on the platform to remind vehicles to pay attention.

[0064] The highway announcements include information on temporary road closures, vehicle stops for inspection, accidents, and construction. Safe driving reminders include reminders for speeding, traffic violations, and fatigue. Information such as temporary road closures, vehicle stops for inspection, accidents, and construction released by the highway traffic monitoring and command center 12 is obtained through the information release center 1 and promptly published on the platform. When the highway traffic monitoring and command center 12 monitors and identifies a vehicle exhibiting dangerous driving behaviors such as speeding, traffic violations, or fatigue, it can immediately match the vehicle's signal and issue a targeted notification to the vehicle to remind it to drive safely and courteously.

[0065] The AB dual-frequency matching mechanism is executed as follows:

[0066] (a) For vehicles traveling from A to B, the on-board data acquisition and dissemination device 2 starts the A-frequency module and shuts down the B-frequency module, matching the A-type road sign data transmission device 3 on the same side;

[0067] (ii) For vehicles traveling from B to A, start the B frequency module and turn off the A frequency module, and match the B type road sign data transmitter 3 on the same side.

[0068] The AB dual-frequency mechanism reduces the signal collision rate.

[0069] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A smart transportation information platform for highways, characterized in that: It includes an information release center for disseminating traffic information (1), an on-board data collection and release device installed in each vehicle for collecting vehicle driving dynamic data and disseminating information (2), road sign data transmission devices arranged at 30-50m intervals along both sides of the central median strip of the highway (3), and communication base stations arranged at 10-15km intervals along the extension direction of the highway (4). The spacing between the road sign data transmitters (3) is smaller than the spacing between the communication base stations (4), and multiple road sign data transmitters (3) located within the signal coverage area of ​​the same communication base station (4) share the communication base station (4). The road sign data transmitter (3) includes a crash protection base (31) fixed on the central median strip; The anti-collision base (31) includes a first fixed seat (311), a first mounting seat (312), a first ball (313), a first rod (315), a second mounting seat (316), a second ball (318), and a second rod (319). The first fixing seat (311) is fixed on the central isolation strip, and the first mounting seat (312) is fixed on the top of the first fixing seat (311). The first mounting seat (312) has an inner cavity (3121) and a first spherical groove (3122) on the top. The top of the first spherical groove (3122) penetrates the outside of the first mounting seat (312), and the bottom end communicates with the inner cavity (3121). The first sphere (313) is movably fitted into the first spherical groove (3122), with its top protruding above the first mounting seat (312) and its bottom extending into the inner cavity (3121); The inner cavity (3121) is filled with a rubber filler (314), and the rubber filler (314) has a concave cavity (3141). The bottom of the first ball (313) is fixed with a protruding rod (3131), and the bottom of the first ball (313) and the protruding rod (3131) are matched and embedded in the concave cavity (3141). The first rod (315) is fixed to the top of the first ball (313) and extends vertically upward, and the second mounting base (316) is fixed to the top of the first rod (315); The first rod (315) is fitted with a first spring (317), one end of the first spring (317) is fixed to the upper surface of the first mounting base (312) of the mounting base, and the other end is fixed to the bottom end of the second mounting base (316); The second mounting base (316) has a second spherical groove (3161) at the top, the top end of the second spherical groove (3161) penetrates the second mounting base (316), and the second sphere (318) is movably matched and installed in the second spherical groove (3161), with its top end protruding above the second mounting base (316); The second rod (319) is vertically fixed at the top of the second ball (318), and the upright (32) is vertically fixed at the top of the second rod (319); The second rod (319) is fitted with a second spring (3110), one end of the second spring (3110) is fixed to the top of the second mounting base (316), and the other end is fixed to the bottom of the upright (32); The bottom of the first sphere (313) is embedded in the cavity (3141) filled with rubber filler (314), and the protrusion (3131) is coupled with the deformation energy absorption structure of the rubber filler; The vehicle-mounted data acquisition and distribution unit (2) and the road sign data transmission unit (3) achieve directional signal communication through an AB dual-frequency matching mechanism, wherein: (a) The road sign data transmitters (3) on the same side of the central median strip use the same frequency band; (ii). The opposite road sign data transmitter (3) uses the opposite frequency band; (iii). Vehicle-mounted data acquisition and distribution device (2) automatically switches to the matching frequency band according to the driving lane; The automatic switching of matching channels specifically refers to: Firstly: For vehicles traveling from A to B, the vehicle-mounted data acquisition and publishing device (2) starts the A-frequency module and shuts down the B-frequency module, matching the A-type road sign data transmission device (3) on the same side. Secondly: For vehicles traveling from B to A, start the B frequency module and turn off the A frequency module, and match the B type road sign data transmitter on the same side (3). Furthermore, the signal coverage of adjacent road sign data transmitters (3) on the same side overlaps, ensuring that the vehicle-mounted data acquisition and publishing device (2) maintains signal transmission with the road sign data transmitter (3) at all times during the driving process; Along the direction of highway extension, the vehicle-mounted data acquisition and dissemination device (2), the road sign data transmission device (3) and the communication base station (4) form a secondary communication network (02), and several secondary communication networks (02) and the information release center (1) form a primary communication network (01).

2. The intelligent transportation information platform for highways according to claim 1, characterized in that: The main processor (11) in the information release center (1) has four communication ports. One of the communication ports is interconnected with the communication base station (4) in the primary communication network (01) for data signal exchange. The other three communication ports are interconnected with the high-speed traffic monitoring and command center (12), the map manufacturer server (13), and the meteorological bureau server (14) for data exchange, respectively. The information release center (1) retrieves various data from the primary communication network (01), the high-speed traffic monitoring and command center (12), the map manufacturer server (13), and the meteorological bureau server (14), analyzes and processes them, summarizes them to form high-speed driving dynamic information, and transmits the high-speed driving dynamic information back to the vehicle-mounted data acquisition and release device (2) in each vehicle, which receives and releases the information in real time.

3. The intelligent transportation information platform for highways according to claim 2, characterized in that: The vehicle-mounted data acquisition and publishing device (2) includes a housing (21) installed inside the vehicle and a first microprocessor (22), a first wireless transmitting module (23), a first wireless receiving module (24), a Bluetooth module (25), and a collision sensor (26) arranged inside the housing (21). The first microprocessor (22) is electrically connected to the first wireless transmitting module (23), the first wireless receiving module (24), the Bluetooth module (25), and the collision sensor (26), respectively; The first microprocessor (22) connects with the vehicle infotainment system (211) in the vehicle to realize data interaction and transmission, and the Bluetooth module (25) can be Bluetooth paired with the mobile terminal (212).

4. The intelligent transportation information platform for highways according to claim 3, characterized in that: The road sign data transmitter (3) includes a pole (32) fixed on the anti-collision base (31), a pole (32) installed in the first cavity (321) of the pole (32), a second microprocessor (33), a second wireless receiving module (34), a second wireless transmitting module (35) and a wireless communication module (36), and a high-definition camera (37) installed in the second cavity (322) of the pole (32). The second microprocessor (33) is electrically connected to the second wireless receiving module (34), the second wireless transmitting module (35), the wireless communication module (36), and the high-definition camera (37), respectively; The second wireless receiving module (34) is signal-matched with the first wireless transmitting module (23), and the second wireless transmitting module (35) is signal-matched with the first wireless receiving module (24); The wireless communication module (36) communicates with the communication base station (4) via data signals; The high-definition camera (37) is used to capture and collect image information of passing vehicles in real time.

5. The intelligent transportation information platform for highways according to claim 4, characterized in that: Highway driving dynamic information includes: simulated images of the driving environment, road conditions and weather information, highway announcements, and safe driving correction reminders.

6. The intelligent transportation information platform for highways according to claim 5, characterized in that: The simulated image of the driving environment includes a navigation map displayed on the in-vehicle screen, images of surrounding vehicles displayed on the map, the speed of surrounding vehicles marked on the map and their distance from the vehicle, as well as lane change and speed change warnings.

7. The intelligent transportation information platform for highways according to claim 6, characterized in that: Highway announcements include information on temporary road closures, vehicle stops for inspection, accidents, and construction. Safe driving correction reminders include speeding reminders, traffic violation reminders, and fatigue reminders.

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