Road traffic safety speed control system in cold region

Abstract

The utility model relates to the technical field of cold region road driving systems, in particular to a cold region road driving safety speed control system which comprises a cloud end, a detection end and a transmission terminal, the detection end and the transmission terminal are in communication connection with the cloud end, the detection end is installed on one side of a road, and the cloud end can control selective work of the transmission terminal; the detection terminal comprises a temperature detection module and a humidity detection module, and the transmission terminal comprises a display screen mounted above a road and a snow melting agent output device connected to one side of the road; wherein the display screen is configured to output a safe passing vehicle speed and / or a safe vehicle following distance, the snow melting agent output device is configured to output a snow melting agent, and the driving safety speed control system for the highway in the cold region has the beneficial effects that the driving safety speed control system for the highway in the cold region is an efficient and intelligent solution, and the driving safety of the highway in the cold region under severe weather conditions can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold region highway driving systems, in particular to a cold region highway driving safety speed control system. Background Art

[0002] In cold regions, especially in winter, highway driving faces severe challenges, primarily due to extreme weather conditions such as snow and ice, reduced visibility, and slippery roads. These conditions not only reduce the road's ability to resist slipping but also severely impair the driver's vision and judgment, increasing the risk of traffic accidents. To address these challenges and ensure driving safety on cold-region highways, the development of an efficient speed control system is crucial.

[0003] (1) Technical issues to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a safety speed control system for driving on cold-region highways, which solves the technical problem of poor driving safety on icy and snowy highways in cold regions in the prior art.

[0005] (2) Technical solution

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0007] In a first aspect, the utility model provides a speed control system for safe driving on cold-region roads, comprising a cloud and a detection terminal and a transmission terminal communicatively connected to the cloud, wherein the detection terminal is installed on one side of the road, and the cloud can control the selective operation of the transmission terminal; the detection terminal comprises a temperature detection module and a humidity detection module, and the transmission terminal comprises a display screen installed above the road, and a snow-melting agent output device connected to one side of the road; wherein the display screen is configured to output a safe passing speed and / or a safe following distance, and the snow-melting agent output device is configured to output snow-melting agent.

[0008] (3) Beneficial effects

[0009] The beneficial effects of the present invention are as follows: the present invention provides a safe speed control system for driving on cold-region highways, which can determine the risk of icing by collecting temperature and humidity data on the highway and provide a basis for decision-making in the cloud. Through data analysis and decision-making in the cloud, automated and intelligent speed control and snow melting operations are realized, reducing manual intervention and improving efficiency and accuracy. The detection terminal and the transmission terminal communicate with the cloud in real time to ensure rapid data updates and timely response to environmental changes. By detecting the temperature and humidity of the road surface in advance, the risk of icing is predicted, and corresponding measures are taken to effectively prevent the occurrence of traffic accidents. The system can adjust the information content of the display screen and the amount of snow melting agent sprayed according to actual conditions to meet the needs of different scenarios. This safe speed control system for driving on cold-region highways is an efficient and intelligent solution that can significantly improve driving safety on highways in cold areas under severe weather conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is the system block diagram of the utility model cold region highway driving safety speed control system;

[0011] Figure 2 This is a schematic diagram of the structure of the utility model cold region highway driving safety speed control system;

[0012] Figure 3 This is a structural diagram of the snow melting agent output device of the utility model in a hidden position;

[0013] Figure 4 This is a structural schematic diagram of the snow melting agent output device of the utility model in the spraying position;

[0014] Figure 5 This is a structural diagram of the passive deceleration device of the utility model in a deceleration state;

[0015] Figure 6 This is a structural diagram of the passive deceleration device of the utility model in a passing state.

[0016] [Description of Reference Numerals]

[0017] 1: Detection end; 11: Temperature detection module; 12: Humidity detection module

[0018] 2: Cloud;

[0019] 3: Transmission terminal; 31: Display screen; 32: Smart phone;

[0020] 33: snow melting agent output device; 331: column; 332: jet device; 333: jet pipe; 334: connecting pipe; 335: first lifting device; 336: air inlet valve;

[0021] 34: Passive deceleration device; 341: Second lifting device; 342: Raised strip; 343: Laminating film. DETAILED DESCRIPTION

[0022] In order to better explain the present invention, and to facilitate understanding, the following Figure 1-6 , through the specific implementation method, the utility model is described in detail. Among them, the directional nouns such as "upper" and "lower" mentioned in this article are Figure 2 The orientation is referenced.

[0023] Example 1:

[0024] Reference Figures 1-6 An embodiment of the present invention provides a cold-region highway driving safety speed control system, comprising a cloud 2 and a detection terminal 1 and a transmission terminal 3 communicatively connected to the cloud 2. The detection terminal 1 is installed on one side of the highway, and the cloud 2 can control the selective operation of the transmission terminal 3; the detection terminal 1 includes a temperature detection module 11 and a humidity detection module 12, and the transmission terminal 3 includes a display screen 31 installed above the highway and a snow-melting agent output device 33 connected to one side of the highway; wherein the display screen 31 is configured to output a safe passing speed and / or a safe following distance, and the snow-melting agent output device 33 is configured to output snow-melting agent.

[0025] In this embodiment, the Cold Region Highway Driving Safety and Speed Control System is an intelligent system that integrates modern information technology and physical infrastructure, designed to improve driving safety on cold region highways in adverse weather conditions. Cloud 2 serves as the core of the entire system. Cloud 2 is responsible for receiving data from Detection Terminal 1, analyzing and processing it, and controlling Transmission Terminal 3 to perform corresponding operations based on the analysis results. It also provides advanced functions such as data storage, historical analysis, and early warning and prediction.

[0026] The cloud 2 maintains real-time connection with the detection terminal 1 and the transmission terminal 3 through wireless communication or wired network to ensure fast and accurate data transmission.

[0027] The detection terminal 1 is installed on the side of the highway, typically in a location with a clear view, easy installation, and no obstruction to traffic. The temperature detection module 11 monitors the temperature of the highway and its surroundings in real time, particularly the road surface temperature, which is crucial for determining whether snow melting measures are necessary. The humidity detection module 12 measures the ambient humidity and, combined with temperature data, can further assess the risk of icy or slippery road conditions.

[0028] By collecting temperature and humidity data on the road, the risk of icing can be determined, providing a basis for decision-making for Cloud 2.

[0029] Communication terminal 3 includes a display screen 31 and a deicing agent dispenser 33. Display screen 31 is mounted above the road, ensuring clear visibility for drivers while driving. Based on instructions from cloud 2, it displays the safe speed and / or safe following distance in real time, prompting drivers to adjust their driving behavior and reduce accident risks.

[0030] Deicing agent dispenser 33 is connected to the side of the highway, typically near the roadside or median, to spray the deicing agent directly onto the road surface. When low road temperature and high humidity are detected, posing a risk of icing, deicing agent is automatically or manually activated based on instructions from Cloud 2 to prevent icing and ensure driving safety.

[0031] Through data analysis and decision-making on Cloud 2, automated and intelligent speed control and snow melting operations are achieved, reducing manual intervention and improving efficiency and accuracy. Detection Terminal 1 and Transmission Terminal 3 communicate with Cloud 2 in real time, ensuring rapid data updates and timely response to environmental changes. By proactively monitoring road surface temperature and humidity, icing risks are predicted and appropriate measures are implemented, effectively preventing traffic accidents. The system can adjust the information content on display screen 31 and the amount of snow melting agent applied based on actual conditions to meet the needs of different scenarios.

[0032] In summary, this cold-region highway driving safety speed control system is an efficient and intelligent solution that can significantly improve driving safety on cold-region highways under severe weather conditions.

[0033] Example 2:

[0034] Reference Figure 2 and Figure 3 In addition to all the technical solutions of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0035] The de-icing agent output device 33 includes a column 331, and a storage chamber for storing de-icing agent is formed in the column 331; the de-icing agent output device 333 includes an injection device 332 and an injection pipe 333 that are interconnected and both arranged inside the column 331. The outlet of the injection pipe 333 faces the road. The injection pipe 333 is connected to the storage chamber through a connecting pipe 334. The angle between the connecting pipe 334 and the upstream side of the injection pipe 333 is less than 90 degrees. The connecting pipe 334 extends to the bottom of the storage chamber.

[0036] In this embodiment, column 331 serves as the main structure of the deicing agent dispensing device 33. Column 331 not only provides support but also forms a chamber within it to hold the deicing agent. This chamber is used to store a sufficient amount of deicing agent for continuous delivery when needed. The design of column 331 should take into account its load-bearing capacity, corrosion resistance, and thermal insulation properties. The load-bearing capacity must meet the weight requirements of the entire device and the deicing agent; corrosion resistance is required to prevent the deicing agent from corroding the material; and thermal insulation properties help maintain the fluidity of the deicing agent in cold environments.

[0037] The jet device 332 is a key component of the deicing agent delivery device 33. It uses a high-pressure airflow generated by compressed air or other gases to draw the deicing agent from the chamber and spray it onto the road surface at an accelerated speed. Located within the column 331, the jet device 332 is connected to the jet pipe 333. Its design ensures a stable and powerful airflow to overcome the viscous resistance of the deicing agent and achieve the desired spray distance and range.

[0038] The jet pipe 333 is the final channel for the deicing agent. It directs the mixture of airflow and deicing agent generated by the jet device 332 toward the road surface. The outlet design of the jet pipe 333 ensures that the sprayed deicing agent evenly covers the target area while avoiding interference or damage to passing vehicles. The jet pipe 333 is located inside the column 331, with its outlet facing the road. This design ensures that the deicing agent is sprayed directly and accurately onto the road surface, improving snow melting efficiency.

[0039] Connecting pipe 334 connects the accommodating chamber and the upstream side of jet pipe 333, allowing deicing agent to be drawn from the accommodating chamber and transported into jet pipe 333 under the action of jet device 332. The angle between connecting pipe 334 and the upstream side of jet pipe 333 is less than 90°. This design helps reduce resistance and pressure loss during the flow of deicing agent, thereby improving injection efficiency. Furthermore, connecting pipe 334 extends toward the bottom of the accommodating chamber, ensuring that even when the amount of deicing agent decreases, the remaining deicing agent can still be smoothly withdrawn, avoiding waste and clogging.

[0040] The de-icing agent dispensing device 33 stores and dispenses de-icing agent through the coordinated operation of a column 331, an injection device 332, an injection pipe 333, and a connecting pipe 334. This design not only improves de-icing efficiency but also reduces manual intervention and maintenance costs, effectively ensuring road safety in cold regions.

[0041] The first lifting device 335 is a key component of the deicing agent dispensing device 33. It controls the vertical movement of the column 331. By adjusting the height of the column 331, the first lifting device 335 allows the column 331 to be freely switched between a concealed position and a spraying position. The first lifting device 335 is pre-buried alongside the column 331 on the side of the road, ensuring the stability and safety of the device. This installation method not only saves space but also prevents the device from interfering with normal road traffic.

[0042] The first lifting device 335 can be driven by various means, including electric, hydraulic, or pneumatic, and can be remotely or automatically operated via the cloud 2. When de-icing agent is needed, the cloud 2 activates the lifting device and raises the column 331 to the spraying position. When it is no longer needed, it is lowered back to its hidden position to avoid disrupting the highway landscape and driving safety.

[0043] When the column 331 is in the hidden position, the column 331 and the air injection pipe 333 will not cause any impact on the normal traffic on the highway, and the risk of the device being damaged by human beings or natural erosion is also reduced.

[0044] When the column 331 is raised to the spraying position by the first lifting device 335, the outlet of the nozzle 333 will be located at a certain height above the road surface. This height should be carefully designed to ensure that the snow melting agent can be evenly and effectively applied to the road surface while avoiding interference or damage to passing vehicles.

[0045] The introduction of the first lifting device 335 allows the deicing agent dispensing device 33 to quickly switch operating modes according to actual needs. When deicing agent is not needed, the device can be hidden below the ground, keeping the road clean and beautiful; when needed, it can be quickly raised and put into operation.

[0046] The hiding and raising operations of the column 331 are all achieved through remote automatic control, reducing the risk of manual intervention. At the same time, when the column 331 is in the hidden position, it also avoids the possibility of being hit by passing vehicles, thereby improving the safety of the device.

[0047] Specifically, the jet device 332 includes an air pump and a power supply device, and the air pump is controlled by the cloud 2.

[0048] An air inlet valve 336 communicating with the outside is provided on the side wall of the accommodating chamber to adjust the pressure in the accommodating chamber to ensure that the snow melting agent can be smoothly output.

[0049] The top of the accommodating chamber is configured as a structure closed by a cover body, so that the staff can fill the accommodating chamber with snow melting agent.

[0050] Example 3:

[0051] In addition to all the technical solutions of the above-mentioned embodiment 2, the embodiment of the present utility model further has the following technical solutions:

[0052] The de-icing agent output device 33 further includes a warning device provided on the top of the column 331 to output an alarm message when the column 331 is switched to the spraying position; the alarm message includes one or a combination of a sound alarm and a light alarm.

[0053] In this embodiment, the warning device is mounted on top of column 331. This position makes it more easily visible to passing vehicles and pedestrians when column 331 is switched to the spraying position. When column 331 is raised to the spraying position by first lifting device 335, the warning device immediately activates and outputs an alarm message. This function serves to alert drivers and pedestrians that de-icing agent is being sprayed ahead and that they need to take appropriate driving or walking precautions to ensure safety.

[0054] Warning devices emit specific audible signals, such as sirens and buzzers, which quickly attract attention. This type of warning is intuitive and easy to understand, making it particularly useful for alerting drivers and pedestrians in noisy environments. Alternatively, flashing lights, such as LEDs and warning lights, can be used to signal a warning. Light alarms are effective both day and night, but are particularly important in low-visibility conditions such as fog, rain, and at night.

[0055] To improve the effectiveness and reliability of the alarm, the warning device can be designed to output both an audible and a light alarm simultaneously. This combination can fully utilize the advantages of both alarm modes and alert people from multiple perspectives.

[0056] The warning device can sound an alarm when de-icing agents are sprayed, alerting drivers and pedestrians to changes in road conditions, thereby effectively reducing traffic accidents caused by de-icing agents. Through the dual stimulation of sound and light, the warning device can quickly alert people, making them more aware of changes in road conditions ahead, and improving driving and walking safety.

[0057] While de-icing agents are sprayed to ensure road safety, their sudden application can be surprising to drivers and pedestrians. Warning devices can alleviate this sense of surprise to a certain extent and improve overall user satisfaction with road traffic facilities.

[0058] Therefore, the additional warning device on the deicing agent output device 33 is a very practical design improvement. It not only improves the safety of the device during use, but also enhances people's vigilance, providing more comprehensive protection for road driving safety in cold areas.

[0059] Example 4:

[0060] Reference Figure 3 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0061] The communication terminal 3 also includes a smart phone 32, and the software of the smart phone 32 is connected to the cloud 2 to selectively output the traffic information of the highway.

[0062] In this embodiment, dedicated software is developed for smartphone 32, enabling a stable communication connection with cloud 2. This connection can be real-time or timed, depending on system requirements and design. Through the smartphone 32 software, cloud 2 can push road traffic information to the user in real time or on a scheduled basis. This information includes, but is not limited to, road conditions, safe speed, safe following distance, and snow-melting agent application status.

[0063] Smartphone software allows users to customize the type of traffic information they receive based on their needs and preferences. For example, users can choose to receive only traffic information related to their frequently used routes, or receive the status of deicing agents for all important roads. Based on the user's driving history and current location, the software intelligently pushes the most relevant traffic information to the user. This personalized push notification method greatly improves the effectiveness and practicality of information.

[0064] The real-time communication between the smartphone 32 software and the cloud 2 ensures timely updates and push notifications of traffic information, allowing users to stay informed of the latest road conditions. Users simply carry their smartphone 32 and install the corresponding software to receive road traffic information anytime, anywhere, without the need for additional equipment or complex operations. Through user customization and intelligent push notifications, the software provides personalized information services to meet the diverse needs of different users. The smartphone 32 software can also be designed as a user feedback channel, allowing users to provide feedback to the cloud 2 on road conditions, snowmelt results, and other information, helping to continuously optimize and improve the system.

[0065] In summary, using smartphone 32 as part of transmission terminal 3 and establishing a communication connection with cloud 2 can greatly improve the efficiency of highway traffic information transmission and user experience. This design not only conforms to modern usage habits, but also provides more comprehensive and convenient information support for highway driving safety in cold regions.

[0066] Example 5:

[0067] Reference Figure 5 and Figure 6In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0068] The communication terminal 3 also includes a passive deceleration device 34 on the road surface. The passive deceleration device 34 includes a second lifting device 341 embedded in the highway and a lifting protrusion extending along the width direction of the highway. The lifting protrusion is connected to the highway on both sides along the length direction of the highway. The second lifting device 341 is arranged below the lifting protrusion. The middle part of the lower surface of the lifting protrusion can abut against the lifting part of the second lifting device 341, so that the lifting protrusion can switch between a deceleration state protruding from the highway and a passing state flush with the highway.

[0069] In this embodiment, the passive deceleration device 34 automatically reduces the vehicle's speed by changing the road surface without the need for active operation by the driver, thereby increasing driving safety.

[0070] The device mainly consists of two parts: a second lifting device 341 and a lifting protrusion. The second lifting device 341 is pre-buried in the road and is responsible for controlling the lifting of the lifting protrusion. The lifting protrusion extends along the width of the road, and the middle of its lower surface abuts the lifting part of the second lifting device 341.

[0071] When a vehicle's speed needs to be reduced, such as during de-icing spraying or on accident-prone sections of road, the second lifting device 341 is activated, raising the middle portion of the lower surface of the lifting protrusion to a certain height above the road surface. This way, when a vehicle reaches this section of road, the wheels are obstructed by the lifting protrusion, automatically slowing down. When deceleration is no longer necessary, the second lifting device 341 lowers the lifting protrusion back to a position flush with the road, allowing the vehicle to travel normally with minimal hindrance.

[0072] The passive deceleration device 34 can switch between deceleration and passage at any time according to actual needs, making it very flexible. This facilitates quick response in specific situations and improves driving safety. The device does not require active operation by the driver; instead, it automatically achieves deceleration through changes in road surface morphology. This reduces the driver's operational burden and mitigates safety hazards caused by human factors. The lifting protrusion and the second lifting device 341 are both made of wear-resistant and corrosion-resistant materials to ensure long-term stability and reliability. Since most of the device is pre-buried within the highway, maintenance is relatively simple. Regular inspections of the operating status of the second lifting device 341 and the wear of the lifting protrusion are sufficient.

[0073] In this embodiment, the lifting protrusion includes three parallel ridges 342 and a coating 343 connecting adjacent ridges 342. The ridges 342 are arranged along the width direction of the road, and the two outermost ridges 342 are connected to the road. The middle ridge 342 can abut against the second lifting device 341.

[0074] The three ridges 342 are arranged along the width of the road. In order to maintain the integrity and stability of the lifting protrusion, adjacent ridges 342 are connected by a coating 343. The coating 343 not only enhances the structural strength between the ridges 342, but also ensures a smooth transition of the lifting protrusion during the lifting process. The two outermost ridges 342 are directly connected to the road surface, forming a stable frame. The middle ridge 342 is designed to abut against the lifting part of the second lifting device 341. When the second lifting device 341 is started, it will push up the middle ridge 342, making it protrude from the road surface, thereby achieving a deceleration effect.

[0075] When a vehicle reaches a section of road equipped with a passive deceleration device 34, the wheel first contacts the outermost ridge 342, initially experiencing slight resistance. As the wheel continues to roll forward, it sequentially contacts the middle ridge 342 and the other outermost ridge 342. Because the middle ridge 342 is lifted by the second lifting device 341, the wheel experiences greater resistance when it contacts it, achieving a deceleration effect.

[0076] When it is not necessary to slow down, the second lifting device 341 will lower the middle convex strip 342 back to the position flush with the highway. At this moment, the lifting protrusion is consistent with the highway surface, and vehicles can pass normally.

[0077] The three parallel ridges 342 ensure that the vehicle is subjected to multiple resistance forces during travel, thereby enhancing the deceleration effect. The coating 343 connects adjacent ridges 342, ensuring the stability and integrity of the lifting protrusion during the lifting process. This helps reduce vehicle bumps and safety hazards caused by uneven roads.

[0078] Specifically, the coating 343 layer can be set to wear-resistant rubber, referring to the structure of a car tire, and the ridges 342 can be set to stainless steel.

[0079] Example 6:

[0080] Reference Figure 1 In addition to all the technical solutions of the above-mentioned embodiment 5 and embodiment 1, the embodiment of the present utility model further has the following technical solutions:

[0081] In this embodiment, multiple groups of passive deceleration devices 34 and snow melting agent output devices 33 are arranged at intervals along the longitudinal direction of the highway.

[0082] In this embodiment, multiple groups of passive deceleration devices 34 and snow-melting agent delivery devices 33 are spaced apart along the length of the highway according to actual needs and road conditions. This arrangement ensures effective deceleration and snow-melting effects across different road sections.

[0083] It can be understood that, except for any conflicting parts, the above-mentioned embodiments 1-6 can be freely combined to form other implementation methods of the present invention.

[0084] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0085] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0086] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0087] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0088] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A speed control system for driving safety on cold-region highways, characterized by: The invention comprises a cloud (2) and a detection terminal (1) and a transmission terminal (3) in communication connection with the cloud (2), wherein the detection terminal (1) is installed on one side of a road, and the cloud (2) is capable of controlling the selective operation of the transmission terminal (3); The detection end (1) includes a temperature detection module (11) and a humidity detection module (12); the communication terminal (3) includes a display screen (31) installed above the road, and a snow melting agent output device (33) connected to one side of the road; The display screen (31) is configured to output a safe passing speed and / or a safe following distance, and the deicing agent output device (33) is configured to output deicing agent.

2. A cold region highway driving safety speed control system as claimed in claim 1, characterized in that: The deicing agent output device (33) includes a column (331), wherein a cavity for accommodating the deicing agent is formed in the column (331); The de-icing agent output device (33) comprises an air jet device (332) and an air jet pipe (333) which are interconnected and both arranged inside the column (331). The outlet of the air jet pipe (333) faces the road. The air jet pipe (333) is connected to the accommodating chamber via a connecting pipe (334). The angle between the connecting pipe (334) and the upstream side of the air jet pipe (333) is less than 90 degrees. The connecting pipe (334) extends to the bottom of the accommodating chamber.

3. A cold region highway driving safety speed control system as claimed in claim 2, characterized in that: The snow melting agent output device (33) further includes a first lifting device (335), the column (331) and the first lifting device (335) are both pre-buried on one side of the road, and the column (331) is supported on the lifting portion of the first lifting device (335); The column (331) can be switched between a hidden position hidden on one side of the road and a spraying position protruding from one side of the road under the drive of the first lifting device (335); When the upright post (331) is in the spraying position, the outlet of the spray pipe (333) is located above the road surface.

4. A cold region highway driving safety speed control system as claimed in claim 3, characterized in that: An air inlet valve (336) communicating with the outside is provided on the side wall of the accommodating cavity.

5. The cold region highway driving safety speed control system according to claim 3, characterized in that: The de-icing agent output device (33) further includes a warning device provided on the top of the column (331) to output an alarm message when the column (331) is switched to the spraying position; The alarm information includes one or a combination of sound alarm and light alarm.

6. The cold region highway driving safety speed control system according to claim 1, characterized in that: The transmission terminal (3) further includes a passive deceleration device (34) on the road surface, wherein the passive deceleration device (34) includes a second lifting device (341) pre-buried in the road, and a lifting protrusion extending along the width direction of the road; The lifting protrusion is connected to the highway on both sides along the length direction of the highway, and the second lifting device (341) is arranged below the lifting protrusion. The middle part of the lower surface of the lifting protrusion can abut against the lifting part of the second lifting device (341), so that the lifting protrusion can switch between a deceleration state protruding from the highway and a passing state flush with the highway.

7. A cold region highway driving safety speed control system as claimed in claim 6, characterized in that: The lifting protrusion comprises three parallel convex strips (342) and a coating (343) connecting adjacent convex strips (342). The convex strips (342) are arranged along the width direction of the road, and the two outermost convex strips (342) are connected to the road. The middle convex strip (342) can abut against the second lifting device (341).

8. The cold region highway driving safety speed control system according to claim 6, characterized in that: The passive deceleration device (34) and the snow melting agent output device (33) are arranged in multiple groups at intervals along the longitudinal direction of the highway.

9. A cold region highway driving safety speed control system according to any one of claims 1 to 8, characterized in that: The communication terminal (3) also includes a smart phone (32), and the software of the smart phone (32) is connected to the cloud (2) for selectively outputting the traffic information of the highway.

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