Safety induction method and system for ramp diversion and confluence in highway reconstruction and extension construction area

Abstract

The invention provides a safety induction method and system for ramp diversion and confluence in a highway reconstruction and extension construction area, and belongs to the field of intelligent traffic systems. The method and the device are used for providing the safety of traffic flow diverting and converging under the construction condition. The method comprises the following steps: under the condition that a change / extension area of an expressway needs to be constructed, a management device obtains state information of traffic flow passing through the change / extension area; according to the state information of the traffic flow, the management equipment determines the influence condition of starting construction of the modification / extension area on the traffic flow; the management equipment determines the setting position of the device for ramp shunting and converging safety induction according to the influence condition, the setting position indicates the distance between the device and the change / extension area in the reverse direction of the traffic flow, and the distance is in positive correlation with the influence condition.

Description

Technical Field

[0001] The present application relates to the field of intelligent transportation systems, and in particular to a method and system for safety induction of ramp divergence and merging in a highway reconstruction and expansion construction area. Background Art

[0002] Highway reconstruction or expansion is a common practice in modern traffic management. Because construction zones can disrupt normal traffic flow, measures are needed to ensure vehicles can safely and orderly navigate around them. Guidance devices are a key means of achieving this goal. Guidance devices typically include traffic signs, signal lights, and road markings. They help drivers make informed decisions by clearly indicating travel directions, speed limits, and merging or diverging points.

[0003] However, existing induction devices are usually set at fixed locations, which makes it difficult to meet the needs of complex and changing traffic conditions. Summary of the Invention

[0004] The embodiments of the present application provide a method and system for safety induction of traffic flow separation and merging on ramps in a highway reconstruction and expansion construction area, so as to ensure the safety of traffic flow separation and merging during construction.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] In the first aspect, an embodiment of the present application provides a method for safety induction of ramp divergence and merging in a highway reconstruction and expansion construction area, which is characterized in that it is applied to a management device, and the method includes: when there is a reconstruction / expansion area on the highway that needs construction, the management device obtains status information of the traffic passing through the reconstruction / expansion area; the management device determines the impact of the start of construction in the reconstruction / expansion area on the traffic based on the status information of the traffic; the management device determines the setting position of the device for safety induction of ramp divergence and merging based on the impact situation, and the setting position indicates the distance between the device and the reconstruction / expansion area in the opposite direction of the traffic flow, and the distance is positively correlated with the impact situation.

[0007] Optionally, the management device obtains status information of traffic passing through the renovation / expansion area, including: the management device determines the relative position relationship between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area within the current time window, where i is an integer greater than or equal to 1 and less than M, and a total of M vehicles pass through the renovation / expansion area within the current time window, and the status information of the traffic flow is used to characterize the relative position relationship.

[0008] Optionally, the management device determines the relative position relationship between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area within the current time window, including: the management device determines the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when they pass through the renovation / expansion area; the management device determines the distance between the i-th vehicle and the i+1-th vehicle based on the time difference between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area, and the speed of the i+1-th vehicle when passing through the renovation / expansion area; wherein the relative position relationship is represented by the passing lane and the distance between the i-th vehicle and the i+1-th vehicle.

[0009] Optionally, the management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on the status information of the traffic flow, including: the management device determines the impact factor of the i-th vehicle on the vehicle passing through the renovation / expansion area after the i-th vehicle among M vehicles, a total of M-1 impact factors; the management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on the M-1 impact factors.

[0010] Optionally, the management device determines the impact factor of the i-th vehicle on the vehicle among M vehicles that passes through the renovation / expansion area after the i-th vehicle, a total of M-1 impact factors, including: the management device determines whether the distance between the i-th vehicle and the i+1-th vehicle is less than a preset distance threshold; if the distance between the i-th vehicle and the i+1-th vehicle is greater than or equal to the preset distance threshold, the management device determines that the i-th impact factor corresponding to the i-th vehicle is 0; if the distance between the i-th vehicle and the i+1-th vehicle is less than the preset distance threshold, the management device determines that the i-th impact factor corresponding to the i-th vehicle is Ai based on the distance between the i-th vehicle and the i+1-th vehicle, and the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the renovation / expansion area, the value of Ai is greater than 0, and the value of the i-th impact factor is used to characterize the impact of the i-th vehicle's driving on the i+1-th vehicle.

[0011] Optionally, the management device determines the i-th impact factor corresponding to the i-th vehicle as Ai based on the distance between the i-th vehicle and the i+1-th vehicle, and the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the reconstruction / expansion area, including: the management device determines the i-th distance impact factor corresponding to the distance between the i-th vehicle and the i+1-th vehicle, if the distance between the i-th vehicle and the i+1-th vehicle is smaller, the i-th distance impact factor is larger, and vice versa; the management device determines the i-th lane impact factor based on the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the reconstruction / expansion area, wherein in the i-th lane impact factor When the lane in which the i-th vehicle passes through the renovation / expansion area is the same as the lane in which the i+1-th vehicle passes through the renovation / expansion area, the i-th lane influence factor is the maximum value; when the lane in which the i-th vehicle passes through the renovation / expansion area is different from the lane in which the i+1-th vehicle passes through the renovation / expansion area, the closer the lane in which the i-th vehicle passes through the renovation / expansion area is to the lane in which the i+1-th vehicle passes through the renovation / expansion area, the greater the i-th lane influence factor, and vice versa. The management device performs a weighted summation of the i-th distance influence factor and the i-th lane influence factor to obtain the i-th influence factor corresponding to the i-th vehicle.

[0012] Optionally, if the lane in which the i-th vehicle is located when passing through the renovation / expansion area is different from the lane in which the i+1-th vehicle is located when passing through the renovation / expansion area, the method also includes: the management device generates a virtual vehicle corresponding to the i+1-th vehicle, the virtual vehicle is in a parallel direction to the i+1-th vehicle, and is located in the lane in which the i-th vehicle is located when passing through the renovation / expansion area; the management device determines the virtual influence factor corresponding to the i-th vehicle, and the value of the virtual influence factor is used to characterize the impact of the i-th vehicle's driving on the virtual vehicle; accordingly, the management device weightedly sums the i-th distance influence factor and the i-th lane influence factor to obtain the i-th influence factor corresponding to the i-th vehicle, including: the management device weightedly sums the i-th distance influence factor, the i-th lane influence factor and the virtual influence factor to obtain the i-th influence factor corresponding to the i-th vehicle.

[0013] Optionally, the management device determines the virtual impact factor corresponding to the i-th vehicle, including: the management device determines the distance virtual impact factor corresponding to the distance between the i-th vehicle and the virtual vehicle, if the distance between the i-th vehicle and the virtual vehicle is smaller, the distance virtual impact factor is larger, and vice versa; the management device determines the lane virtual impact factor based on the lanes in which the i-th vehicle and the virtual vehicle are respectively located when passing through the renovation / expansion area, wherein, based on the fact that the lane in which the i-th vehicle is located when passing through the renovation / expansion area is the same as the lane in which the virtual vehicle is located when passing through the renovation / expansion area, the lane virtual impact factor is the maximum value; the management device weightedly sums the distance virtual impact factor and the lane virtual impact factor to obtain the virtual impact factor corresponding to the i-th vehicle.

[0014] Optionally, the method also includes: if there is an i+2th vehicle among the M vehicles, and the lane in which the i+1th vehicle is located when passing through the renovation / expansion area is different from the lane in which the i+1th vehicle is located when passing through the renovation / expansion area, the management device determines the indirect impact factor corresponding to the i+1th vehicle, and the value of the indirect impact factor is used to characterize the indirect impact of the i+1th vehicle's driving on the i+2th vehicle; accordingly, when determining the i+1th impact factor corresponding to the i+1th vehicle, the i+1th impact factor is determined in the following manner: the management device weightedly sums the i+1th distance impact factor, the i+1th lane impact factor, and the indirect impact factor corresponding to the i+1th vehicle to obtain the i+1th impact factor corresponding to the i+1th vehicle.

[0015] Optionally, the management device determines the indirect impact factor corresponding to the i-th vehicle, including: the management device determines the distance indirect impact factor corresponding to the distance between the i-th vehicle and the i+2-th vehicle, if the distance between the i-th vehicle and the i+2-th vehicle is smaller, the distance indirect impact factor is larger, and vice versa; the management device determines the lane indirect impact factor according to the lanes in which the i-th vehicle and the i+2-th vehicle are respectively located when passing through the renovation / expansion area, wherein the lane in which the i-th vehicle is located when passing through the renovation / expansion area is the same as the lane in which the i+2-th vehicle is located when passing through the renovation / expansion area. When the lanes in which the vehicles are renovated / expanded are the same, the lane indirect impact factor is the maximum value. When the lane in which the i-th vehicle is passing through the renovation / expanded area is different from the lane in which the i+2-th vehicle is passing through the renovation / expanded area, the closer the lanes in which the i-th vehicle is passing through the renovation / expanded area is to the lane in which the i+2-th vehicle is passing through the renovation / expanded area, the greater the lane indirect impact factor, and vice versa. The management device performs the weighted summation of the distance indirect impact factor and the lane indirect impact factor to obtain the indirect impact factor corresponding to the i-th vehicle.

[0016] Optionally, the management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on M-1 influencing factors, including: the management device weightedly sums the M-1 influencing factors, and the sum obtained is the impact of the start of construction in the renovation / expansion area on the traffic flow; accordingly, the management device determines the setting position of the device for ramp diversion and merging safety induction based on the impact, including: the management device determines the setting position corresponding to the sum value.

[0017] On the second aspect, an embodiment of the present application provides a lane-level intelligent driving safety guidance system for a construction area, the system including a management device, which is configured as follows: when there is a reconstruction / expansion area on the highway that needs construction, the management device obtains status information of the traffic passing through the reconstruction / expansion area; the management device determines the impact of the start of construction in the reconstruction / expansion area on the traffic based on the status information of the traffic; the management device determines the setting position of the device for ramp diversion and merging safety guidance based on the impact situation, and the setting position indicates the distance between the device and the reconstruction / expansion area in the opposite direction of the traffic flow, and the distance is positively correlated with the impact situation.

[0018] Optionally, the management device obtains status information of traffic passing through the renovation / expansion area, including: the management device determines the relative position relationship between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area within the current time window, where i is an integer greater than or equal to 1 and less than M, and a total of M vehicles pass through the renovation / expansion area within the current time window, and the status information of the traffic flow is used to characterize the relative position relationship.

[0019] Optionally, the management device determines the relative position relationship between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area within the current time window, including: the management device determines the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when they pass through the renovation / expansion area; the management device determines the distance between the i-th vehicle and the i+1-th vehicle based on the time difference between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area, and the speed of the i+1-th vehicle when passing through the renovation / expansion area; wherein the relative position relationship is represented by the passing lane and the distance between the i-th vehicle and the i+1-th vehicle.

[0020] Optionally, the management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on the status information of the traffic flow, including: the management device determines the impact factor of the i-th vehicle on the vehicle passing through the renovation / expansion area after the i-th vehicle among M vehicles, a total of M-1 impact factors; the management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on the M-1 impact factors.

[0021] Optionally, the management device determines the impact factor of the i-th vehicle on the vehicle among M vehicles that passes through the renovation / expansion area after the i-th vehicle, a total of M-1 impact factors, including: the management device determines whether the distance between the i-th vehicle and the i+1-th vehicle is less than a preset distance threshold; if the distance between the i-th vehicle and the i+1-th vehicle is greater than or equal to the preset distance threshold, the management device determines that the i-th impact factor corresponding to the i-th vehicle is 0; if the distance between the i-th vehicle and the i+1-th vehicle is less than the preset distance threshold, the management device determines that the i-th impact factor corresponding to the i-th vehicle is Ai based on the distance between the i-th vehicle and the i+1-th vehicle, and the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the renovation / expansion area, the value of Ai is greater than 0, and the value of the i-th impact factor is used to characterize the impact of the i-th vehicle's driving on the i+1-th vehicle.

[0022] Optionally, the management device determines the i-th impact factor corresponding to the i-th vehicle as Ai based on the distance between the i-th vehicle and the i+1-th vehicle, and the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the reconstruction / expansion area, including: the management device determines the i-th distance impact factor corresponding to the distance between the i-th vehicle and the i+1-th vehicle, if the distance between the i-th vehicle and the i+1-th vehicle is smaller, the i-th distance impact factor is larger, and vice versa; the management device determines the i-th lane impact factor based on the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the reconstruction / expansion area, wherein in the i-th lane impact factor When the lane in which the i-th vehicle passes through the renovation / expansion area is the same as the lane in which the i+1-th vehicle passes through the renovation / expansion area, the i-th lane influence factor is the maximum value; when the lane in which the i-th vehicle passes through the renovation / expansion area is different from the lane in which the i+1-th vehicle passes through the renovation / expansion area, the closer the lane in which the i-th vehicle passes through the renovation / expansion area is to the lane in which the i+1-th vehicle passes through the renovation / expansion area, the greater the i-th lane influence factor, and vice versa. The management device performs a weighted summation of the i-th distance influence factor and the i-th lane influence factor to obtain the i-th influence factor corresponding to the i-th vehicle.

[0023] Optionally, if the lane in which the i-th vehicle is located when passing through the renovation / expansion area is different from the lane in which the i+1-th vehicle is located when passing through the renovation / expansion area, the management device is configured as follows: the management device generates a virtual vehicle corresponding to the i+1-th vehicle, and the virtual vehicle is in a parallel direction to the i+1-th vehicle and is located in the lane in which the i-th vehicle is located when passing through the renovation / expansion area; the management device determines the virtual influence factor corresponding to the i-th vehicle, and the value of the virtual influence factor is used to characterize the impact of the i-th vehicle's driving on the virtual vehicle; accordingly, the management device weightedly sums the i-th distance influence factor and the i-th lane influence factor to obtain the i-th influence factor corresponding to the i-th vehicle, including: the management device weightedly sums the i-th distance influence factor, the i-th lane influence factor and the virtual influence factor to obtain the i-th influence factor corresponding to the i-th vehicle.

[0024] Optionally, the management device determines the virtual impact factor corresponding to the i-th vehicle, including: the management device determines the distance virtual impact factor corresponding to the distance between the i-th vehicle and the virtual vehicle, if the distance between the i-th vehicle and the virtual vehicle is smaller, the distance virtual impact factor is larger, and vice versa; the management device determines the lane virtual impact factor based on the lanes in which the i-th vehicle and the virtual vehicle are respectively located when passing through the renovation / expansion area, wherein, based on the fact that the lane in which the i-th vehicle is located when passing through the renovation / expansion area is the same as the lane in which the virtual vehicle is located when passing through the renovation / expansion area, the lane virtual impact factor is the maximum value; the management device weightedly sums the distance virtual impact factor and the lane virtual impact factor to obtain the virtual impact factor corresponding to the i-th vehicle.

[0025] Optionally, the management device is configured as follows: if there is an i+2th vehicle among the M vehicles, and the lane in which the i+1th vehicle is located when passing through the renovation / expansion area is different from the lane in which the i+1th vehicle is located when passing through the renovation / expansion area, then the management device determines the indirect impact factor corresponding to the i+1th vehicle, and the value of the indirect impact factor is used to characterize the indirect impact of the i+1th vehicle's driving on the i+2th vehicle; accordingly, when determining the i+1th impact factor corresponding to the i+1th vehicle, the i+1th impact factor is determined in the following manner: the management device weightedly sums the i+1th distance impact factor, the i+1th lane impact factor, and the indirect impact factor corresponding to the i+1th vehicle to obtain the i+1th impact factor corresponding to the i+1th vehicle.

[0026] Optionally, the management device determines the indirect impact factor corresponding to the i-th vehicle, including: the management device determines the distance indirect impact factor corresponding to the distance between the i-th vehicle and the i+2-th vehicle, if the distance between the i-th vehicle and the i+2-th vehicle is smaller, the distance indirect impact factor is larger, and vice versa; the management device determines the lane indirect impact factor according to the lanes in which the i-th vehicle and the i+2-th vehicle are respectively located when passing through the renovation / expansion area, wherein the lane in which the i-th vehicle is located when passing through the renovation / expansion area is the same as the lane in which the i+2-th vehicle is located when passing through the renovation / expansion area. When the lanes in which the vehicles are renovated / expanded are the same, the lane indirect impact factor is the maximum value. When the lane in which the i-th vehicle is passing through the renovation / expanded area is different from the lane in which the i+2-th vehicle is passing through the renovation / expanded area, the closer the lanes in which the i-th vehicle is passing through the renovation / expanded area is to the lane in which the i+2-th vehicle is passing through the renovation / expanded area, the greater the lane indirect impact factor, and vice versa. The management device performs the weighted summation of the distance indirect impact factor and the lane indirect impact factor to obtain the indirect impact factor corresponding to the i-th vehicle.

[0027] Optionally, the management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on M-1 influencing factors, including: the management device weightedly sums the M-1 influencing factors, and the sum obtained is the impact of the start of construction in the renovation / expansion area on the traffic flow; accordingly, the management device determines the setting position of the device for ramp diversion and merging safety induction based on the impact, including: the management device determines the setting position corresponding to the sum value.

[0028] In a third aspect, an embodiment of the present application provides a computer-readable storage medium having program code stored thereon. When the program code is run by the computer, the method described in the first aspect is executed.

[0029] In summary, the above method and system have the following technical effects:

[0030] Before construction starts in the renovation / expansion area, the management equipment can detect the status of traffic passing through the renovation / expansion area, and thus determine the impact of the start of construction in the renovation / expansion area on traffic based on the status of traffic. In this way, the management equipment can determine the location of the device used for ramp diversion and merging safety induction. If the start of construction in the renovation / expansion area has a greater impact on traffic, the device can be set at a relatively forward position; otherwise, it can be set closer, so as to induce vehicles to slow down or change lanes at a reasonable position, thereby improving road traffic safety during renovation / expansion construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the architecture of a lane-level intelligent driving safety guidance system for a construction zone provided in an embodiment of the present application;

[0032] Figure 2 A flowchart of a lane-level intelligent driving safety guidance method for high-risk road sections in construction areas provided in an embodiment of the present application;

[0033] Figure 3 Schematic diagram of the application scenario of the method provided in the embodiment of the present application Figure 1 ;

[0034] Figure 4 Schematic diagram of the application scenario of the method provided in the embodiment of the present application Figure 2 ;

[0035] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] In the embodiment of the present invention, "indication" may include direct indication and indirect indication, and may also include explicit indication and implicit indication. The information indicated by a certain information is called information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein the other information and the information to be indicated have an association relationship. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can be achieved by means of the arrangement order of each piece of information that is agreed upon in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. At the same time, the common parts of each piece of information can be identified and indicated uniformly to reduce the indication overhead caused by indicating the same information separately.

[0037] In addition, the specific indication method can also be various existing indication methods, such as but not limited to the above-mentioned indication methods and various combinations thereof. The specific details of the various indication methods can refer to the existing technology and will not be repeated in this article. As can be seen from the above, for example, when it is necessary to indicate multiple information of the same type, there may be a situation where the indication methods for different information are different. In the specific implementation process, the required indication method can be selected according to specific needs. The embodiment of the present invention does not limit the selected indication method. In this way, the indication method involved in the embodiment of the present invention should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.

[0038] It should be understood that the information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately, and the sending period and / or sending timing of these sub-information can be the same or different. The specific sending method is not limited by the embodiment of the present invention. The sending period and / or sending timing of these sub-information can be predefined, for example, predefined according to a protocol, or can be configured by the transmitting device through sending configuration information to the receiving device.

[0039] "Pre-definition" or "pre-configuration" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in the device, and the embodiments of the present invention do not limit the specific implementation method. Among them, "saving" can mean saving in one or more memories. The one or more memories can be set separately or integrated in an encoder or decoder, a processor, or an electronic device. The one or more memories can also be partially set separately and partially integrated in a decoder, a processor, or an electronic device. The type of memory can be any form of storage medium, which is not limited by the embodiments of the present invention.

[0040] The "protocol" involved in the embodiments of the present invention may refer to a protocol family in the communication field, a standard protocol with a similar protocol family frame structure, or a related protocol in a reliable access method system for future Internet of Things devices. The embodiments of the present invention do not specifically limit this.

[0041] In the embodiments of the present invention, descriptions such as "when...", "in the case of...", "if", and "if" all mean that the device will perform corresponding processing under certain objective circumstances. They do not limit the time, nor do they require the device to perform judgment actions during implementation, nor do they mean the existence of other limitations.

[0042] In the description of the embodiments of the present invention, unless otherwise specified, " / " indicates that the objects associated with each other are in an "or" relationship. For example, A / B can mean A or B. "And / or" in the embodiments of the present invention is merely a description of the association relationship between the associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exists simultaneously, and B exists alone. A and B can be singular or plural. Furthermore, in the description of the embodiments of the present invention, unless otherwise specified, "multiple" means two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural. In addition, to facilitate the clear description of the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit differences. At the same time, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or design. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

[0043] The network architecture and business scenarios described in the embodiments of the present invention are intended to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. Ordinary technicians in this field can know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present invention are also applicable to similar technical problems.

[0044] The technical solution in this application will be described below with reference to the accompanying drawings.

[0045] The embodiment of the present application provides a lane-level intelligent driving safety guidance system for construction areas, such as Figure 1 As shown, the lane-level intelligent driving safety guidance system in the construction area includes management equipment and a device for ramp merging and diverging safety guidance, referred to as the guidance device for short.

[0046] The management device can be a device deployed near the target area of ​​road construction. The management device can be connected to the sensing device installed on the road, such as the sensing device can be a millimeter wave radar installed on a pole above the road to obtain information about the traffic flow on the road through the millimeter wave radar. For details, please refer to the relevant introduction of the method embodiment, which will not be repeated here. The management device can be in the form of a terminal, which can also be called a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, and a wireless terminal in smart city.

[0047] The induction device may be a device with display capability, such as a large screen display with a bracket that can be set up on the roadside.

[0048] The functions performed by the management device in the above system will be described in detail below in conjunction with the method.

[0049] See also Figure 2 The present application provides a method for intelligently guiding lane-level driving safety in high-risk sections of a construction zone, which is applied to management equipment. The method includes the following steps:

[0050] S201: When there is a reconstruction / expansion area on a highway that needs construction, the management device obtains status information of the traffic flow passing through the reconstruction / expansion area.

[0051] The status information of the traffic flow is used to indicate the relative position relationship between vehicles passing through the reconstruction / expansion area.

[0052] For example, the management device may set a time window, also referred to as the current time window, with the current time point as the starting point. The current time point may be the time point at which the management device triggers execution of S201, and the specific timing / conditions for the trigger are not limited. The length of the current time window can be relatively short, such as 1 or 2 minutes, and is not specifically limited. Within the current time window, the management device determines the relative positional relationship between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area, where i is an integer greater than or equal to 1 and less than M, and a total of M vehicles passed through the renovation / expansion area within the current time window. For example, the management device may determine the lanes in which the i-th vehicle and the i+1-th vehicle were respectively located when passing through the renovation / expansion area. The management device may perform sensing and detection using a millimeter-wave radar, which may be a sensing device located on the side of the renovation / expansion area and closest to the renovation / expansion area. In this case, a vehicle passing through the millimeter-wave radar is considered to have passed through the target area. When a vehicle passes the millimeter-wave radar, the millimeter-wave radar can detect the vehicle's speed, lane, speed, and time of passage, and transmit these information to the management device. Thus, for the i-th vehicle and the i+1-th vehicle, the management device can determine the time difference between the i-th vehicle and the i+1-th vehicle when they each passed through the renovation / expansion area based on the time they each passed through the renovation / expansion area. The management device can determine the distance between the i-th vehicle and the i+1-th vehicle based on the time difference between the i-th vehicle and the i+1-th vehicle when they passed through the renovation / expansion area, as well as the speed of the i+1-th vehicle when it passed through the renovation / expansion area. That is, assuming the vehicles were traveling at that speed, the management device can infer the distance between the i-th vehicle and the i-th vehicle when the i-th vehicle passed through the renovation / expansion area, i.e., the distance between the i-th vehicle and the i+1-th vehicle. Because the management device also obtains the lanes in which the i-th vehicle and the i+1-th vehicle were respectively located when they passed through the renovation / expansion area, the relative positional relationship between the i-th vehicle and the i+1-th vehicle can be represented by the passage through the lane and the distance between the i-th vehicle and the i+1-th vehicle.

[0053] S202: The management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on the traffic state information.

[0054] Here, S202 can be implemented through steps S1 and S2.

[0055] Step S1: The management device determines the impact factor of the i-th vehicle on the vehicles among M vehicles that pass through the reconstruction / expansion area after the i-th vehicle, with a total of M-1 impact factors.

[0056] For example, the management device can determine whether the distance between the i-th vehicle and the i+1-th vehicle is less than a preset distance threshold. The distance threshold can be preset, such as 200 meters or 300 meters. If the distance threshold is exceeded, it is assumed that the leading vehicle will not affect the following vehicle at this distance. In other words, if the distance between the i-th vehicle and the i+1-th vehicle is greater than or equal to the preset distance threshold, the management device determines that the i-th impact factor corresponding to the i-th vehicle is 0.

[0057] However, if the distance between the i-th vehicle and the i+1-th vehicle is less than the preset distance threshold, the management device determines that the i-th influence factor corresponding to the i-th vehicle is Ai based on the distance between the i-th vehicle and the i+1-th vehicle, and the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the renovation / expansion area. The value of Ai is greater than 0, and the value of the i-th influence factor is used to characterize the impact of the i-th vehicle's driving on the i+1-th vehicle.

[0058] For example, the management device determines the i-th distance influence factor corresponding to the distance between the i-th vehicle and the i+1-th vehicle. If the distance between the i-th vehicle and the i+1-th vehicle is smaller, the i-th distance influence factor is larger, and vice versa. For example, different distance intervals can be set, and the management device determines which distance interval the distance between the i-th vehicle and the i+1-th vehicle belongs to, and then determines the distance influence factor corresponding to the distance interval. For example, distance interval 1 is (0,50], in meters, and the distance influence factor corresponding to distance interval 1 is 1. Distance interval 2 is (50,100], and the distance influence factor corresponding to distance interval 2 is 0.8. Distance interval 3 is (100,150], and the distance influence factor corresponding to distance interval 3 is 0.5. Distance interval 4 is (150,200], and the distance influence factor corresponding to distance interval 4 is 0.2.

[0059] The management device can determine the i-th lane impact factor based on the lanes in which the i-th vehicle and the i+1-th vehicle respectively passed through the renovation / expansion area. When the lane in which the i-th vehicle passed through the renovation / expansion area is the same as the lane in which the i+1-th vehicle passed through the renovation / expansion area, the i-th lane impact factor is at its maximum value, such as 1. If the lane in which the i-th vehicle passed through the renovation / expansion area is different from the lane in which the i+1-th vehicle passed through the renovation / expansion area, the closer the lanes in which the i-th vehicle passed through the renovation / expansion area are to the lanes in which the i+1-th vehicle passed through the renovation / expansion area, the greater the i-th lane impact factor, and vice versa. For example, if the lanes are adjacent, i.e., the lane spacing is 0, the corresponding lane impact factor is 0.8. If the lane spacing is 1, i.e., one lane apart, the corresponding lane impact factor is 0.5. If the lane spacing is 2 or more, i.e., two or more lanes apart, the corresponding lane impact factor is 0.2.

[0060] The management device adds the weighted sum of the i-th distance influence factor and the i-th lane influence factor to obtain the i-th influence factor corresponding to the i-th vehicle. The weights corresponding to the distance influence factor and the lane influence factor can be dynamic. The smaller the distance influence factor, the smaller the weight corresponding to the lane influence factor. For example, when the distance influence factor is 1, the weights corresponding to the lane influence factor and the distance influence factor are both 0.5. When the distance influence factor is 0.8, the weight corresponding to the lane influence factor is 0.4, and the weight corresponding to the distance influence factor is 0.6. When the distance influence factor is 0.5, the weight corresponding to the lane influence factor is 0.3, and the weight corresponding to the distance influence factor is 0.7. When the distance influence factor is 0.2, the weight corresponding to the lane influence factor is 0.2, and the weight corresponding to the distance influence factor is 0.8. In other words, the longer the distance, the weaker the influence of the lane.

[0061] Optionally, if the lane in which the i-th vehicle passes through the renovation / expansion area is different from the lane in which the (i+1)-th vehicle passes through the renovation / expansion area, the method further includes:

[0062] like Figure 3As shown, the management device generates a virtual vehicle corresponding to the i+1th vehicle. The virtual vehicle is parallel to the i+1th vehicle and is located in the lane that the i-th vehicle was in when it passed through the renovation / expansion area. The management device determines a virtual impact factor corresponding to the i-th vehicle. The value of the virtual impact factor is used to represent the impact of the i-th vehicle's movement on the virtual vehicle. For example, the management device determines a distance virtual impact factor corresponding to the distance between the i-th vehicle and the virtual vehicle. The smaller the distance between the i-th vehicle and the virtual vehicle, the larger the distance virtual impact factor, and vice versa. The management device determines a lane virtual impact factor based on the lanes that the i-th vehicle and the virtual vehicle were in when they passed through the renovation / expansion area. The lane virtual impact factor is maximized because the lane in which the i-th vehicle passed through the renovation / expansion area is the same as the lane in which the virtual vehicle passed through the renovation / expansion area. The management device then performs a weighted summation of the distance virtual impact factor and the lane virtual impact factor to obtain the virtual impact factor corresponding to the i-th vehicle. The specific implementation principle of the management device determining the virtual impact factor is similar to that of the i-th impact factor described above and can be used as a reference for understanding, so it will not be repeated here.

[0063] At this time, the management device may perform a weighted summation of the i-th distance influence factor, the i-th lane influence factor, and the virtual influence factor to obtain the i-th influence factor corresponding to the i-th vehicle.

[0064] It should be understood that the virtual vehicle assumes that the i-th vehicle changes lanes to the position of the virtual vehicle. At this time, the i-th vehicle will also have an impact on the i-th vehicle. Therefore, it is assumed that the i-th vehicle is a virtual vehicle, and the impact of the virtual vehicle is also considered when calculating the i-th impact factor corresponding to the i-th vehicle. In addition, the i-th vehicle can also change lanes to other positions, but in this case, the impact of the i-th vehicle on such a position is not as great as the position where the above-mentioned virtual vehicle is located (such as moving to Figure 3 Lane 3) shown, considering the computational overhead, the impact of this situation can be ignored.

[0065] Optionally, the method further includes:

[0066] like Figure 4As shown, if there is an i+2th vehicle among the M vehicles, and the lane where the i-th vehicle is located when passing through the renovation / expansion area is different from the lane where the i+1th vehicle is located when passing through the renovation / expansion area, the management device determines the indirect impact factor corresponding to the i-th vehicle, and the value of the indirect impact factor is used to characterize the indirect impact of the driving of the i-th vehicle on the i+2th vehicle. For example, the management device determines the distance indirect influence factor corresponding to the distance between the i-th vehicle and the i+2-th vehicle. If the distance between the i-th vehicle and the i+2-th vehicle is smaller, the distance indirect influence factor is larger, and vice versa. The management device determines the lane indirect influence factor based on the lanes in which the i-th vehicle and the i+2-th vehicle are respectively located when they pass through the renovation / expansion area. When the lane in which the i-th vehicle is located when passing through the renovation / expansion area is the same as the lane in which the i+2-th vehicle is located when passing through the renovation / expansion area, the lane indirect influence factor is maximum. When the lane in which the i-th vehicle is located when passing through the renovation / expansion area is different from the lane in which the i+2-th vehicle is located when passing through the renovation / expansion area, the closer the lane in which the i-th vehicle is located when passing through the renovation / expansion area is to the lane in which the i+2-th vehicle is located when passing through the renovation / expansion area, the larger the lane indirect influence factor is, and vice versa. The management device weightedly sums the distance indirect influence factor and the lane indirect influence factor to obtain the indirect influence factor corresponding to the i-th vehicle. Among them, the specific implementation principle of the management device determining the indirect impact factor is similar to the above-mentioned i-th impact factor, which can be understood by reference and will not be repeated here.

[0067] Accordingly, when determining the i+1th influence factor corresponding to the i+1th vehicle, the i+1th influence factor is determined in the following manner: the management device performs a weighted summation of the i+1th distance influence factor, the i+1th lane influence factor, and the indirect influence factor corresponding to the i-th vehicle to obtain the i+1th influence factor corresponding to the i+1th vehicle. At this time, the weight of the indirect influence factor can be a fixed value, such as 0.2, then the weights corresponding to the i+1th distance influence factor and the i+1th lane influence factor can be dynamically allocated within the remaining 0.8. The allocation principle is still that the smaller the distance influence factor, the smaller the weight corresponding to the lane influence factor. For details, please refer to the relevant introduction above. In addition, the specific implementation principle of the i+1th distance influence factor is similar to that of the above-mentioned i-th distance influence factor, and the specific implementation principle of the i+1th lane influence factor is similar to that of the above-mentioned i-th lane influence factor. You can refer to it for understanding and will not repeat it here.

[0068] It can be understood that when the lane in which the i-th vehicle passes through the renovation / expansion area is different from the lane in which the i+1-th vehicle passes through the renovation / expansion area, the i-th vehicle is likely to be visible to the i+2-th vehicle. Therefore, when calculating the impact of the i+1-th vehicle on the i+2-th vehicle, the impact of the i-th vehicle on the i+2-th vehicle can also be considered.

[0069] Step S2: The management device determines the impact of the start of construction in the renovation / expansion area on traffic flow based on M-1 influencing factors.

[0070] For example, the management device can perform a weighted summation of M-1 influencing factors, and the resulting sum represents the impact of the commencement of construction in the renovation / expansion area on traffic flow. For example, the weights of the M-1 influencing factors can all be 1, or as the sequence numbers of the M-1 influencing factors increase, their corresponding weights gradually increase. For example, the weight of the first influencing factor can be 0.1, the weight of the second influencing factor can be 0.15, the weight of the third influencing factor can be 0.2, and so on. This allows for the hysteresis effect of traffic flow to be taken into account, thereby more accurately describing the impact of the commencement of construction in the renovation / expansion area on traffic flow.

[0071] S203: The management device determines the location of the induction device according to the impact situation.

[0072] The induction device is used to indicate construction ahead by displaying content, such as indicating that the construction ahead requires slowing down, and can also display prompts for changing lanes.

[0073] For example, the setting location indicates the distance between the induction device and the renovation / expansion area in the opposite direction of traffic flow, and this distance is positively correlated with the impact. Specifically, the management device determines the setting location corresponding to the summed value in S202. For example, multiple value intervals are pre-set to determine the setting distance corresponding to the value interval within which the summed value falls. If the summed value is large, the corresponding setting distance is also relatively large. For example, if the summed value is 500 meters, the corresponding setting distance can be relatively small, such as 400 meters. And so on.

[0074] In summary, before construction starts in the renovation / expansion area, the management equipment can detect the status of traffic passing through the renovation / expansion area, and thus determine the impact of the start of construction in the renovation / expansion area on traffic based on the status of traffic. In this way, the management equipment can determine the location of the device for safety induction of ramp diversion and merging. If the impact of the start of construction in the renovation / expansion area on traffic is relatively large, the device can be set at a relatively further forward position. Otherwise, it can be set closer, so as to induce vehicles to slow down or change lanes at a reasonable position, which can improve road traffic safety during renovation / expansion construction.

[0075] Combination of the above Figure 2The method provided by the embodiment of the present application is described in detail. The following describes a lane-level intelligent driving safety guidance system for a construction zone for executing the method provided by the embodiment of the present application. The system includes a management device, which is configured to: when there is a reconstruction / expansion area on a highway that needs construction, the management device obtains status information of the traffic passing through the reconstruction / expansion area; the management device determines the impact of the start of construction in the reconstruction / expansion area on the traffic based on the traffic status information; the management device determines the setting position of the device for ramp diversion and merging safety guidance based on the impact, and the setting position indicates the distance between the device and the reconstruction / expansion area in the opposite direction of the traffic flow, and the distance is positively correlated with the impact.

[0076] Optionally, the management device obtains status information of traffic passing through the renovation / expansion area, including: the management device determines the relative position relationship between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area within the current time window, where i is an integer greater than or equal to 1 and less than M, and a total of M vehicles pass through the renovation / expansion area within the current time window, and the status information of the traffic flow is used to characterize the relative position relationship.

[0077] Optionally, the management device determines the relative position relationship between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area within the current time window, including: the management device determines the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when they pass through the renovation / expansion area; the management device determines the distance between the i-th vehicle and the i+1-th vehicle based on the time difference between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area, and the speed of the i+1-th vehicle when passing through the renovation / expansion area; wherein the relative position relationship is represented by the passing lane and the distance between the i-th vehicle and the i+1-th vehicle.

[0078] Optionally, the management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on the status information of the traffic flow, including: the management device determines the impact factor of the i-th vehicle on the vehicle passing through the renovation / expansion area after the i-th vehicle among M vehicles, a total of M-1 impact factors; the management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on the M-1 impact factors.

[0079] Optionally, the management device determines the impact factor of the i-th vehicle on the vehicle among M vehicles that passes through the renovation / expansion area after the i-th vehicle, a total of M-1 impact factors, including: the management device determines whether the distance between the i-th vehicle and the i+1-th vehicle is less than a preset distance threshold; if the distance between the i-th vehicle and the i+1-th vehicle is greater than or equal to the preset distance threshold, the management device determines that the i-th impact factor corresponding to the i-th vehicle is 0; if the distance between the i-th vehicle and the i+1-th vehicle is less than the preset distance threshold, the management device determines that the i-th impact factor corresponding to the i-th vehicle is Ai based on the distance between the i-th vehicle and the i+1-th vehicle, and the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the renovation / expansion area, the value of Ai is greater than 0, and the value of the i-th impact factor is used to characterize the impact of the i-th vehicle's driving on the i+1-th vehicle.

[0080] Optionally, the management device determines the i-th impact factor corresponding to the i-th vehicle as Ai based on the distance between the i-th vehicle and the i+1-th vehicle, and the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the reconstruction / expansion area, including: the management device determines the i-th distance impact factor corresponding to the distance between the i-th vehicle and the i+1-th vehicle, if the distance between the i-th vehicle and the i+1-th vehicle is smaller, the i-th distance impact factor is larger, and vice versa; the management device determines the i-th lane impact factor based on the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the reconstruction / expansion area, wherein in the i-th lane impact factor When the lane in which the i-th vehicle passes through the renovation / expansion area is the same as the lane in which the i+1-th vehicle passes through the renovation / expansion area, the i-th lane influence factor is the maximum value; when the lane in which the i-th vehicle passes through the renovation / expansion area is different from the lane in which the i+1-th vehicle passes through the renovation / expansion area, the closer the lane in which the i-th vehicle passes through the renovation / expansion area is to the lane in which the i+1-th vehicle passes through the renovation / expansion area, the greater the i-th lane influence factor, and vice versa. The management device performs a weighted summation of the i-th distance influence factor and the i-th lane influence factor to obtain the i-th influence factor corresponding to the i-th vehicle.

[0081] Optionally, if the lane in which the i-th vehicle is located when passing through the renovation / expansion area is different from the lane in which the i+1-th vehicle is located when passing through the renovation / expansion area, the management device is configured as follows: the management device generates a virtual vehicle corresponding to the i+1-th vehicle, and the virtual vehicle is in a parallel direction to the i+1-th vehicle and is located in the lane in which the i-th vehicle is located when passing through the renovation / expansion area; the management device determines the virtual influence factor corresponding to the i-th vehicle, and the value of the virtual influence factor is used to characterize the impact of the i-th vehicle's driving on the virtual vehicle; accordingly, the management device weightedly sums the i-th distance influence factor and the i-th lane influence factor to obtain the i-th influence factor corresponding to the i-th vehicle, including: the management device weightedly sums the i-th distance influence factor, the i-th lane influence factor and the virtual influence factor to obtain the i-th influence factor corresponding to the i-th vehicle.

[0082] Optionally, the management device determines the virtual impact factor corresponding to the i-th vehicle, including: the management device determines the distance virtual impact factor corresponding to the distance between the i-th vehicle and the virtual vehicle, if the distance between the i-th vehicle and the virtual vehicle is smaller, the distance virtual impact factor is larger, and vice versa; the management device determines the lane virtual impact factor based on the lanes in which the i-th vehicle and the virtual vehicle are respectively located when passing through the renovation / expansion area, wherein, based on the fact that the lane in which the i-th vehicle is located when passing through the renovation / expansion area is the same as the lane in which the virtual vehicle is located when passing through the renovation / expansion area, the lane virtual impact factor is the maximum value; the management device weightedly sums the distance virtual impact factor and the lane virtual impact factor to obtain the virtual impact factor corresponding to the i-th vehicle.

[0083] Optionally, the management device is configured as follows: if there is an i+2th vehicle among the M vehicles, and the lane in which the i+1th vehicle is located when passing through the renovation / expansion area is different from the lane in which the i+1th vehicle is located when passing through the renovation / expansion area, then the management device determines the indirect impact factor corresponding to the i+1th vehicle, and the value of the indirect impact factor is used to characterize the indirect impact of the i+1th vehicle's driving on the i+2th vehicle; accordingly, when determining the i+1th impact factor corresponding to the i+1th vehicle, the i+1th impact factor is determined in the following manner: the management device weightedly sums the i+1th distance impact factor, the i+1th lane impact factor, and the indirect impact factor corresponding to the i+1th vehicle to obtain the i+1th impact factor corresponding to the i+1th vehicle.

[0084] Optionally, the management device determines the indirect impact factor corresponding to the i-th vehicle, including: the management device determines the distance indirect impact factor corresponding to the distance between the i-th vehicle and the i+2-th vehicle, if the distance between the i-th vehicle and the i+2-th vehicle is smaller, the distance indirect impact factor is larger, and vice versa; the management device determines the lane indirect impact factor according to the lanes in which the i-th vehicle and the i+2-th vehicle are respectively located when passing through the renovation / expansion area, wherein the lane in which the i-th vehicle is located when passing through the renovation / expansion area is the same as the lane in which the i+2-th vehicle is located when passing through the renovation / expansion area. When the lanes in which the vehicles are renovated / expanded are the same, the lane indirect impact factor is the maximum value. When the lane in which the i-th vehicle is passing through the renovation / expanded area is different from the lane in which the i+2-th vehicle is passing through the renovation / expanded area, the closer the lanes in which the i-th vehicle is passing through the renovation / expanded area is to the lane in which the i+2-th vehicle is passing through the renovation / expanded area, the greater the lane indirect impact factor, and vice versa. The management device performs the weighted summation of the distance indirect impact factor and the lane indirect impact factor to obtain the indirect impact factor corresponding to the i-th vehicle.

[0085] Optionally, the management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on M-1 influencing factors, including: the management device weightedly sums the M-1 influencing factors, and the sum obtained is the impact of the start of construction in the renovation / expansion area on the traffic flow; accordingly, the management device determines the setting position of the device for ramp diversion and merging safety induction based on the impact, including: the management device determines the setting position corresponding to the sum value.

[0086] The following combination Figure 5 The components of the electronic device 500 are described in detail.

[0087] The processor 501 is the control center of the electronic device 500 and can be a single processor or a collective term for multiple processing elements. For example, the processor 501 can be one or more central processing units (CPUs), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application, such as one or more microprocessors (digital signal processors, DSPs) or one or more field programmable gate arrays (FPGAs).

[0088] Optionally, the processor 501 can execute various functions of the electronic device 500 by running or executing the software program stored in the memory 502 and calling the data stored in the memory 502, as described above. Figure 2 Function in the method shown.

[0089] In a specific implementation, as an embodiment, the processor 501 may include one or more CPUs, such as Figure 5 CPU0 and CPU1 are shown in FIG.

[0090] In a specific implementation, as an embodiment, the electronic device 500 may also include multiple processors. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). The processor here may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0091] Among them, the memory 502 is used to store the software program for executing the solution of the present application, and the execution is controlled by the processor 501. The specific implementation method can refer to the above method embodiment and will not be repeated here.

[0092] Alternatively, the memory 502 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 502 may be integrated with the processor 501 or exist independently and interface circuit ( Figure 5 (not shown) is coupled to the processor 501, which is not specifically limited in this embodiment of the present application.

[0093] The transceiver 503 is used for communicating with other devices. For example, if the multi-beam positioning device is a terminal, the transceiver 503 can be used to communicate with a network device or another terminal.

[0094] Optionally, the transceiver 503 may include a receiver and a transmitter ( Figure 5 (not shown separately in the figure). The receiver is used to implement a receiving function, and the transmitter is used to implement a sending function.

[0095] Optionally, the transceiver 503 may be integrated with the processor 501 or may exist independently and communicate with the electronic device 500 through the interface circuit ( Figure 5 (not shown) is coupled to the processor 501, which is not specifically limited in this embodiment of the present application.

[0096] It should be noted that Figure 5 The structure of the electronic device 500 shown in the figure does not constitute a limitation on the device. The actual electronic device 500 may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0097] In addition, the technical effects based on the electronic device 500 can refer to the technical effects of the method in the above method embodiment, which will not be repeated here.

[0098] It should be understood that the processor in the embodiments of the present application may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0099] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0100] The above embodiments can be implemented in whole or in part by software, hardware (such as circuits), firmware or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (such as infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (such as a floppy disk, hard disk, tape), an optical medium (such as a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state drive.

[0101] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. A and B can be singular or plural. Furthermore, the character " / " as used herein generally indicates an "or" relationship between the associated objects, but it may also indicate an "and / or" relationship. For specific understanding, please refer to the context.

[0102] In this application, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0103] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0104] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0105] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0106] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some feature fields can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0107] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0108] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0109] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and other media that can store program codes.

[0110] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for safety guidance of ramp divergence and merging in a highway reconstruction and expansion construction area, characterized in that: Applied to managing devices, the method includes: When there is a reconstruction / expansion area on the highway that needs construction, the management device obtains status information of the traffic flow passing through the reconstruction / expansion area; The management device determines, based on the status information of the traffic flow, the impact of the start of construction in the renovation / expansion area on the traffic flow; The management device determines the setting location of the device for ramp diversion and merging safety induction based on the impact situation. The setting location indicates the distance between the device and the renovation / expansion area in the opposite direction of the traffic flow, and the distance is positively correlated with the impact situation.

2. The method according to claim 1, characterized in that The management device obtains status information of traffic passing through the renovation / expansion area, including: The management device determines the relative position relationship between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area within the current time window, where i is an integer greater than or equal to 1 and less than M. A total of M vehicles pass through the renovation / expansion area within the current time window, and the state information of the traffic flow is used to characterize the relative position relationship.

3. The method according to claim 2, characterized in that The management device determines the relative position relationship between the i-th vehicle and the i+1-th vehicle passing through the renovation / expansion area within the current time window, including: The management device determines the lanes in which the i-th vehicle and the (i+1)-th vehicle are respectively located when passing through the renovation / expansion area; The management device determines the distance between the i-th vehicle and the i+1-th vehicle based on the time difference between the i-th vehicle and the i+1-th vehicle when passing through the renovation / expansion area, and the speed of the i+1-th vehicle when passing through the renovation / expansion area; wherein the relative position relationship is represented by passing through the lane and the distance between the i-th vehicle and the i+1-th vehicle.

4. The method according to claim 3, characterized in that The management device determines, based on the status information of the traffic flow, the impact of the start of construction in the renovation / expansion area on the traffic flow, including: The management device determines an impact factor of the i-th vehicle on a vehicle among the M vehicles that passes through the renovation / expansion area after the i-th vehicle, with a total of M-1 impact factors; The management device determines the impact of starting construction in the renovation / expansion area on the traffic flow based on the M-1 influencing factors.

5. The method according to claim 4, characterized in that The management device determines an impact factor of the i-th vehicle on a vehicle among the M vehicles that passes through the renovation / expansion area after the i-th vehicle, a total of M-1 impact factors, including: The management device determines whether the distance between the i-th vehicle and the i+1-th vehicle is less than a preset distance threshold; If the distance between the i-th vehicle and the i+1-th vehicle is greater than or equal to the preset distance threshold, the management device determines that the i-th influence factor corresponding to the i-th vehicle is 0; if the distance between the i-th vehicle and the i+1-th vehicle is less than the preset distance threshold, the management device determines that the i-th influence factor corresponding to the i-th vehicle is Ai based on the distance between the i-th vehicle and the i+1-th vehicle, and the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the renovation / expansion area. The value of Ai is greater than 0, and the value of the i-th influence factor is used to characterize the impact of the i-th vehicle's driving on the i+1-th vehicle.

6. The method according to claim 5, characterized in that The management device determines, based on the distance between the i-th vehicle and the i+1-th vehicle and the lanes in which the i-th vehicle and the i+1-th vehicle are located when passing through the renovation / expansion area, an i-th impact factor corresponding to the i-th vehicle as Ai, including: The management device determines an i-th distance impact factor corresponding to the distance between the i-th vehicle and the i+1-th vehicle, wherein the i-th distance impact factor is greater if the distance between the i-th vehicle and the i+1-th vehicle is smaller, and vice versa; The management device determines an i-th lane influence factor based on the lanes in which the i-th vehicle and the i+1-th vehicle are respectively located when passing through the renovation / expansion area, wherein when the lane in which the i-th vehicle is located when passing through the renovation / expansion area is the same as the lane in which the i+1-th vehicle is located when passing through the renovation / expansion area, the i-th lane influence factor is maximum; when the lane in which the i-th vehicle is located when passing through the renovation / expansion area is different from the lane in which the i+1-th vehicle is located when passing through the renovation / expansion area, the closer the lane in which the i-th vehicle is located when passing through the renovation / expansion area is to the lane in which the i+1-th vehicle is located when passing through the renovation / expansion area, the greater the i-th lane influence factor is, and vice versa; The management device performs a weighted summation of the i-th distance influence factor and the i-th lane influence factor to obtain the i-th influence factor corresponding to the i-th vehicle.

7. The method according to claim 6, characterized in that If the lane in which the i-th vehicle passes through the renovation / expansion area is different from the lane in which the (i+1)-th vehicle passes through the renovation / expansion area, the method further includes: The management device generates a virtual vehicle corresponding to the (i+1)th vehicle, wherein the virtual vehicle is in a parallel direction to the (i+1)th vehicle and is located in the lane where the (i)th vehicle is located when passing through the renovation / expansion area; The management device determines a virtual influence factor corresponding to the i-th vehicle, where the value of the virtual influence factor is used to represent the influence of the driving of the i-th vehicle on the virtual vehicle; Accordingly, the management device performs a weighted summation of the i-th distance influence factor and the i-th lane influence factor to obtain the i-th influence factor corresponding to the i-th vehicle, including: The management device performs weighted summation of the i-th distance influence factor, the i-th lane influence factor, and the virtual influence factor to obtain the i-th influence factor corresponding to the i-th vehicle.

8. The method according to claim 6, characterized in that The method further comprises: If there is an i+2th vehicle among the M vehicles, and the lane in which the i-th vehicle passes through the renovation / expansion area is different from the lane in which the i+1th vehicle passes through the renovation / expansion area, the management device determines an indirect impact factor corresponding to the i-th vehicle, and the value of the indirect impact factor is used to represent the indirect impact of the movement of the i-th vehicle on the i+2th vehicle; Accordingly, when determining the i+1th impact factor corresponding to the i+1th vehicle, the i+1th impact factor is determined in the following manner: The management device performs a weighted summation of the i+1th distance influence factor, the i+1th lane influence factor, and the indirect influence factor corresponding to the i-th vehicle to obtain the i+1th influence factor corresponding to the i+1th vehicle.

9. The method according to any one of claims 4 to 8, characterized in that The management device determines the impact of the start of construction in the renovation / expansion area on the traffic flow based on the M-1 influencing factors, including: The management device performs a weighted summation of the M-1 influencing factors, and the obtained summation value is the impact of the start of construction in the renovation / expansion area on the traffic flow; Accordingly, the management device determines the location of the device for ramp merging and diverging safety guidance based on the impact situation, including: The management device determines the setting position corresponding to the sum value.

10. A lane-level driving safety intelligent guidance system in a construction zone, characterized by: The system includes a management device configured to: When there is a reconstruction / expansion area on the highway that needs construction, the management device obtains status information of the traffic flow passing through the reconstruction / expansion area; The management device determines, based on the status information of the traffic flow, the impact of the start of construction in the renovation / expansion area on the traffic flow; The management device determines the setting location of the device for ramp diversion and merging safety induction based on the impact situation. The setting location indicates the distance between the device and the renovation / expansion area in the opposite direction of the traffic flow, and the distance is positively correlated with the impact situation.

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