WO2024035075A1

WO2024035075A1 - Electronic device and vehicle speed synchronization method therefor

Info

Publication number: WO2024035075A1
Application number: PCT/KR2023/011675
Authority: WO
Inventors: 최다엘
Original assignee: 주식회사 아이나비시스템즈
Priority date: 2022-08-08
Filing date: 2023-08-08
Publication date: 2024-02-15

Abstract

An electronic device according to one embodiment disclosed in the present document comprises: a communication module for providing communication channels for a plurality of vehicles; and a processor functionally connected to the communication module, wherein the processor can obtain a plurality of pieces of vehicle position information from the plurality of vehicles through the communication module, group, on the basis of the plurality of pieces of vehicle position information, vehicles driving in the same lane on the same road from among the plurality of vehicles, obtain speed information about a lead vehicle in each group through the communication module, and provide speed information about the lead vehicle to the vehicles in each group through the communication module so that speed control of the vehicles in each group is synchronized.

Description

Electronic device and its vehicle speed synchronization method

This study is the result of research conducted under the Autonomous Driving Technology Development and Innovation Project (20014361) supported by the Ministry of Trade, Industry and Energy and the Korea Evaluation Institute of Industrial Technology.

Various embodiments disclosed in this document are related to inter-vehicle speed sharing technology.

Traffic jams are a common phenomenon found in places with heavy traffic, and one of the causes is a change in vehicle speed (acceleration or deceleration) due to changes in traffic conditions. For example, traffic jam phenomena caused by changes in vehicle speed due to changes in traffic conditions include ghost congestion and moving bottleneck phenomena.

FIG. 1 is a diagram for explaining the ghost congestion that causes conventional traffic jams, and FIG. 2 is a diagram for explaining the moving bottleneck phenomenon that causes conventional traffic jams.

According to ghost traffic, when a vehicle in the next lane cuts in front of one vehicle, the other vehicle must determine the movement of the vehicle in front and apply the brakes to slow down the vehicle, resulting in a delay. Vehicles following a vehicle must also judge the movement of the vehicle in front and slow down, resulting in a delay. This delay time accumulates toward the vehicle behind, so the vehicle behind becomes slower and slower and may eventually stop.

For example, referring to Figure 1, the identity of the ghost is explained as follows.

- Vehicle 0 changes lane.

- A change in the speed of vehicle 1 occurs. At this time, vehicle 1 slows down after determining that vehicle 0 has changed lanes, resulting in a delay.

- A change in the speed of vehicle 2 occurs. At this time, vehicle 2 decelerates after determining vehicle 1's deceleration, so a delay time occurs.

- Vehicles after number 3 also go through a similar process as vehicle number 2.

Referring to FIG. 2, the moving bottleneck phenomenon is a phenomenon in which a vehicle on the road drives at a lower speed than other vehicles, thereby blocking the flow of other vehicles.

Since the driver of the following vehicle visually checks the control status of the preceding vehicle and determines a driving form that can prevent an accident before driving, delay time occurs during the confirmation and judgment process. Accordingly, traffic congestion caused by the preceding vehicle may accumulate and become heavier as the vehicle moves behind it.

Various embodiments disclosed in this document may provide an electronic device capable of synchronizing and controlling vehicle speed and a vehicle speed synchronization method.

An electronic device according to an embodiment disclosed in this document includes a communication module that provides a communication channel for a plurality of vehicles; and a processor functionally connected to the communication module, wherein the processor acquires a plurality of vehicle location information from the plurality of vehicles through the communication module, and determines the plurality of vehicles based on the plurality of vehicle location information. Group vehicles running in the same lane on the same road, obtain speed information of the lead vehicle in each group through the communication module, and synchronize speed control of the vehicles in each group through the communication module. Speed information of the lead vehicle can be provided to the vehicles in each group.

Additionally, a vehicle speed synchronization method using an electronic device according to an embodiment disclosed in this document includes the operations of acquiring a plurality of vehicle location information from a plurality of vehicles; Grouping vehicles driving in the same lane on the same road among the plurality of vehicles based on the plurality of vehicle location information; An operation of acquiring speed information of the lead vehicle in each group; and providing speed information of the lead vehicle to the vehicles in each group so that speed control of the vehicles in each group is synchronized.

According to various embodiments disclosed in this document, the speed of a vehicle traveling on a road can be synchronized. In addition, various effects that can be directly or indirectly identified through this document may be provided.

1 is a diagram illustrating phantom congestion that causes conventional traffic jams.

Figure 2 is a diagram for explaining the moving bottleneck phenomenon that causes conventional traffic congestion.

3 is an implementation environment of an electronic device according to an embodiment.

4 is a configuration diagram of an electronic device according to an embodiment.

5 and 6 are examples of vehicle speed synchronization according to one embodiment.

7 and 8 are examples of vehicle group integration or separation according to one embodiment.

Figure 9 is an example of group control in a lane change situation according to an embodiment.

10 is a flowchart of a vehicle speed synchronization method according to one embodiment.

11 is a detailed flowchart of a vehicle speed synchronization method according to an embodiment.

Figure 12 is a configuration diagram showing a vehicle system for implementing a speed sharing method according to an embodiment.

In relation to the description of the drawings, identical or similar reference numerals may be used for identical or similar components.

Figure 3 shows an implementation environment of an electronic device according to an embodiment.

Referring to FIG. 3, according to one embodiment, the vehicles 200_1...200_N may be vehicles with a function to assist driver driving, such as an autonomous vehicle. Vehicles (200_1...200_N) may be equipped for V2X (vehicle to everything) communication. For example, the vehicles 200_1...200_N may communicate with the electronic device 100 through V2I (vehicle to infrastructure).

According to one embodiment, the electronic device 100 may be, for example, an operator server that provides a vehicle speed synchronization service. However, it is not limited to this.

According to one embodiment, the electronic device 100 may obtain vehicle location information of each vehicle from the vehicles 200_1...200_N through V2I communication. The vehicle location information may include vehicle identification information, vehicle location coordinates, link ID, and lane number.

According to one embodiment, the electronic device 100 may group vehicles driving in the same (same) lane on the same road among the plurality of vehicles based on the plurality of vehicle location information. In this regard, the electronic device 100 can identify a vehicle driving in the same lane on the same road based on the link ID and lane number included in the vehicle location information.

According to one embodiment, the electronic device 100 obtains speed information of the lead vehicle 200_1 in each group and provides the obtained speed information to vehicles within the group (200_1 to N, where N is a constant of 2 or more). Speed control of vehicles in a group can be synchronized. The speed information may include at least one of speed, acceleration, accelerator state, or break state. The following vehicle in the group (e.g. 200_N) can immediately check the speed of the leading vehicle and follow the leading vehicle's speed. As a result, the electronic device 100 according to one embodiment can support vehicles in the same lane to move at the same speed and acceleration like a train, thereby reducing the driver's decision time and alleviating traffic congestion.

According to one embodiment, when the electronic device 100 confirms that the following vehicle in the group (e.g., a vehicle located between 200_1 and 200_N) meets a specified condition corresponding to a sudden change in speed, Speed information of the following vehicle can be provided. For example, the electronic device 100 may determine that a specified condition is met in at least one of the following cases: when the vehicle rapidly decelerates, suddenly stops, or changes lanes.

According to one embodiment, the electronic device 100 may separate, newly configure, or merge groups based on route information or vehicle location information. For example, when the electronic device 100 confirms vehicles in each group that have changes in travel roads or lanes, the electronic device 100 may exclude the identified vehicles from the group.

In this way, the electronic device 100 according to one embodiment can share the control status with vehicles traveling in the same lane, thereby reducing the decision time required to check the control status of the lead vehicle and determine how to drive. and thus can alleviate traffic congestion.

Figure 4 shows a configuration diagram of an electronic device according to an embodiment.

Referring to FIG. 4 , the electronic device 100 according to one embodiment may include a communication module 110, a memory 120, and a processor 130. In one embodiment, the electronic device 100 may omit some components or may further include additional components. For example, it may further include an input device (not shown) that receives user input and an output device (not shown) that outputs auditory or visual elements. Additionally, some of the components of the electronic device 100 may be combined to form a single entity, but the functions of the components before combination may be performed in the same manner.

The communication module 110 may support establishment of a communication channel or wireless communication channel between the electronic device 100 and another device (e.g., a vehicle), and performance of communication through the established communication channel. The communication module 110 is, for example, V2V (vehicle to vehicle, vehicle-vehicle communication), V2I (vehicle to infrastructure, vehicle-infrastructure communication), V2N (Vehicle to Nomadic Device, vehicle-mobile device communication) ), V2X communication such as V2P (Vehicle to Pedestrian) is possible. Communication module 110 is, for example, 3G, 4G, 5G. It is possible to communicate with vehicles (e.g., 200_1~N) by adopting known long-distance communication methods such as CDMA, GSM, W-CDMA, TD-SCDMA, WiBro, LTE, and EPC. Alternatively, the communication module 110 may use wireless LAN, Wi-Fi, Bluetooth, Zigbee, Wi-Fi Direct (WFD), Ultrawideband (UWB), or infrared communication (IrDA; It is also possible to communicate with the vehicle (V) by adopting short-range communication methods such as Infrared Data Association (BLE), Bluetooth Low Energy (BLE), and Near Field Communication (NFC).

Memory 120 may store various data used by at least one component (eg, processor 130) of electronic device 100. Data may include, for example, input data or output data for software and instructions related thereto. For example, the memory 120 may store at least one instruction for providing a vehicle speed synchronization service.

Memory 120 may include various types of volatile memory or non-volatile memory. For example, memory may include read only memory (ROM) and random access memory (RAM). In an embodiment of the present disclosure, the memory may be located inside or outside the processor, and the memory 120 may be connected to the processor 130 through various known means.

The processor 130 may control at least one other component (eg, hardware or software component) of the electronic device 100 and may perform various data processing or calculations. The processor 130 may include, for example, a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor, an application processor, an application specific integrated circuit (ASIC), or a field programmable gate arrays (FPGA). )), and may have a plurality of cores.

According to one embodiment, the processor 130 may obtain a plurality of vehicle location information from a plurality of vehicles through the communication module 110. The vehicle location information may include at least one of vehicle identification information (ID), vehicle location coordinates, a link ID for the driving road of each vehicle, and the driving lane number of each vehicle. In this regard, the processor 130 may provide a vehicle speed synchronization service to the pre-registered vehicle by receiving a plurality of vehicle location information from the pre-registered vehicle.

According to one embodiment, the processor 130 may group vehicles driving in the same lane on the same road among vehicles based on a plurality of vehicle location information. The processor 130 may check the link ID and lane number from the vehicle location information and group vehicles with the same link ID and lane number.

The processor 130 may group vehicles whose distance from the preceding vehicle is less than a first designated distance among vehicles running in the same lane on the same road into one group. The first designated distance is a reference distance for determining whether to control the speed by grouping vehicles running in the same lane, and may be set to be greater than the normal safety distance between vehicles. The first designated distance may be, for example, about 15 m, which corresponds to the visible distance of the driver or sensors provided in each vehicle. Group integration and separation based on the first designated distance by the processor 130 will be described later with reference to FIG. 7 .

According to one embodiment, the processor 130 checks the driving order of each vehicle within the group based on the position coordinate value included in the vehicle location information, and sequentially determines the order number (sequence number) for the vehicles within the group according to the driving order. ) can be assigned. The processor 130 may store at least some of the vehicle location information (e.g., driving road and driving lane), each vehicle identification information, and the turn number within the group in the memory 120 in correlation with each other. Thereafter, the processor 130 may distinguish the group to which each vehicle belongs, the leading vehicle and the following vehicle among the vehicles, and the control target vehicle within the group based on the group information and turn number information related to the vehicle identification information. The processor 130 can provide (grant) group information and sequential order information to each vehicle, and can also be used only for its own group management. The processor 130 may reallocate and grant turn numbers when a change occurs in the vehicles in the group due to various reasons such as changing lanes or arriving at a destination.

According to one embodiment, the processor 130 may request the lead vehicle of each group through the communication module 110 to obtain speed information of the lead vehicle from the lead vehicle of each group. The speed information may include at least one of speed, acceleration, accelerator status, and brake status.

According to one embodiment, the processor 130 may support synchronization of speed control of the vehicles in each group by providing speed information of the lead vehicle of each group to the vehicles in each group through the communication module 110. For example, the processor 130 may transmit at least one information among the speed, acceleration, accelerator state, and brake state of the lead vehicle to vehicles belonging to the same group (e.g., 200_1 to N in FIG. 3).

Thereafter, vehicles belonging to the same group (e.g., when 200_1 in FIG. 3 is the lead vehicle, the vehicle following the vehicle 200_1) maintains a safety distance from the preceding vehicle at a second specified distance or more, and increases the speed of the lead vehicle. and the accelerator and accelerator pedal of each vehicle can be controlled to approximate the acceleration. The second designated distance may be set to a normal safety distance that is greater than or equal to the first designated distance. The second designated distance may be, for example, 5 m. The second designated distance may be set as a distance at which the vehicle can depart simultaneously after confirming the departure of the lead vehicle. The second designated distance may be set identically by all vehicles in each group. In this regard, the processor 130 may share a second designated distance corresponding to the safety distance to the vehicles in each group. The first designated distance and the second designated distance may be set fixedly, and may be set according to road conditions (e.g., straight roads, curved roads, accident-prone sections), weather conditions (in case of rain), or traffic information (e.g., average speed, speed limit) ) may vary depending on the condition.

According to one embodiment, the processor 130 may obtain and monitor vehicle location information from vehicles in each group periodically or event-synchronously. For example, the processor 130 may periodically acquire vehicle location information from vehicles in each group, but may obtain vehicle location information separately from the designated period when an event such as a change in lane number or link ID occurs.

According to one embodiment, the processor 130 may check (or monitor) whether the trailing vehicle in the group meets specified conditions corresponding to a sudden change in speed based on vehicle location information obtained in each group. For example, the processor 130 may determine that a specified condition is met in at least one of the following cases: when the following vehicle suddenly decelerates, comes to a sudden stop, or changes lanes.

When the processor 130 confirms a following vehicle that satisfies a specified condition, it may provide speed information of the confirmed vehicle to a vehicle whose turn is later than that of the confirmed vehicle (a vehicle traveling after the confirmed vehicle). In this case, following vehicles that have received speed information of the confirmed vehicle may perform sudden deceleration or sudden stop, or perform evasive control such as changing lanes, according to the provided speed information.

According to one embodiment, when the processor 130 confirms an abnormally stopped vehicle in a group based on vehicle location information, the processor 130 may reconfigure the target group based on the confirmed stopped vehicle. The abnormally stopped vehicle may be a vehicle that has stopped at a distance of more than a third specified distance from the preceding vehicle for reasons other than stopping to ensure a safe distance, such as waiting at a signal or traffic jam (e.g., breakdown). . The third designated distance may be set to exceed the second designated distance. In this regard, when the abnormally stopped vehicle confirms the abnormally stopped state, it may transmit emergency situation information (e.g., accident type information) to the electronic device 100. Then, the electronic device 100 may perform follow-up measures (e.g., calling a tow truck) to resolve an accident involving an abnormally stopped vehicle.

For example, when the processor 130 confirms an abnormally stopped vehicle, it may transmit a lane change request to a following vehicle in the group of the abnormally stopped vehicle through the communication module 110. The processor 130 may check whether another group exists in the lane next to the following vehicle within the group, and if another group exists, may transmit a deceleration request to the vehicle following the abnormally stopped vehicle within the other group. Then, in response to a deceleration request, a vehicle in another group slows down, and a following vehicle in the group can cut into the space created by the vehicle that slowed down.

According to one embodiment, the processor 130 may obtain a lane change request to another lane from at least one vehicle in each group through the communication module 110. When the processor 130 obtains a lane change request, it can check whether another group organized in another lane exists. If another group exists in another lane, the processor 130 may provide (eg, transmit) a deceleration request to vehicles located behind at least one vehicle in the other group. Afterwards, a vehicle in another group slows down in response to a deceleration request, and the vehicle that requested a lane change can cut into the space created by the vehicle that slowed down.

According to one embodiment, when the processor 130 identifies a vehicle whose driving road and lane are different from other vehicles in each group or a vehicle attempting to change lanes based on vehicle location information, the processor 130 excludes the confirmed vehicle from the group. can do. For example, when the processor 130 determines which of the vehicles in each group has been separated from the preceding vehicle due to a traffic signal, the processor 130 may separate the vehicle from the previous group. Thereafter, the processor 130 may group the vehicle with the vehicle following the vehicle. For another example, the processor 130 may exclude vehicles that have changed lanes among vehicles in each group from the group in the previous lane and group them in the changed lane.

According to one embodiment, the processor 130 may further obtain route information from a plurality of vehicles through the communication module 110 and configure groups differently according to the routes of each vehicle based on the route information. For example, based on the route information, the processor 130 selects a vehicle going straight and a vehicle turning left (or right) among the vehicles in a group waiting for a signal in a primary lane capable of going straight and turning left (or right). can be distinguished. Based on the route information, the processor 130 may configure vehicles traveling straight into a first group and vehicles turning left (or right) into a second group.

According to one embodiment, the processor 130 further acquires traffic information (e.g., front traffic light information) from the vehicles in each group through the communication module 110, and transfers at least some of the obtained traffic information to the vehicles in each group. can be provided to people. For example, the processor 130 may obtain traffic information from the lead vehicle within each group and provide the obtained traffic information to the following vehicle within the group. In this case, the following vehicle can predict the driving control of the leading vehicle based on traffic information.

In this way, the electronic device 100 according to one embodiment reduces unnecessary judgment time by synchronizing the speed and acceleration (and the second designated distance) so that all vehicles in the same lane operate in synchronization like a train, thereby reducing traffic congestion. It can be alleviated. In detail, the electronic device 100 according to one embodiment dynamically groups and manages vehicles driving in the same lane through V2X communication, and shares the speed of the leading vehicle within the group to synchronize the acceleration/deceleration of the following vehicle. As a result, traffic congestion caused by conventional speed changes can be alleviated.

In addition, the electronic device 100 according to one embodiment shares the changed speed information with the vehicle following the target vehicle when a sudden deceleration, sudden stop, or abnormal stop occurs, and safely brakes the following vehicle to prevent serial collision accidents. It can also support lane changes of trailing vehicles depending on the situation, improving driving decision time and traffic congestion.

In addition, the electronic device 100 according to one embodiment can dynamically adapt to the traffic flow by separating or integrating groups of vehicles according to route information, traffic signals, and lane changes, which can be more advantageous in relieving traffic congestion. .

Hereinafter, the group configuration according to one embodiment will be described in detail with reference to FIGS. 5 to 9.

FIGS. 5 and 6 are examples of vehicle speed synchronization according to an embodiment, and FIGS. 7 and 8 are examples of vehicle group integration or separation according to an embodiment.

Referring to FIG. 5, the electronic device 100 (e.g., the processor 130 of FIG. 4) according to an embodiment may configure a plurality of groups G1 to G8 by grouping vehicles located in the same lane. You can.

According to one embodiment, the electronic device 100 may receive speed and acceleration from the lead vehicle for each group and provide the speed and acceleration to the entire group. As a result, for example, “Group 1 (G1)” is synchronized with speed information “Speed is 0 km/h, acceleration is 0 m/s2”, and “Group 4 (G4)” is synchronized with “Speed is 40 km”. /h, acceleration can be synchronized with speed information of -10 m/s2".

Referring to FIG. 6, vehicles in each group (e.g., 200_1 to N in FIG. 3) can drive by synchronizing the speed/acceleration provided from the electronic device 100 while securing the safety distance between vehicles at the second designated distance. there is. Accordingly, vehicles in a synchronized group can drive in synchronization with the speed of the lead vehicle while maintaining a safe distance. For example, the vehicles in the group in the first lane are synchronized at a speed of 20 km/h according to the speed of the lead vehicle, the vehicles in the group in the second lane are synchronized at a speed of 50 km/h according to the speed of the lead vehicle, and the vehicles in the group in the third lane are synchronized at a speed of 50 km/h according to the speed of the lead vehicle. My vehicles can drive synchronized at a speed of 80 km/h depending on the speed of the lead vehicle.

Referring to FIGS. 7 and 8, the electronic device 100 according to one embodiment is the lead vehicle of a group already configured based on vehicle location information or vehicles of the group preceding the newly confirmed target vehicle 710 ( Example: If 720) exists, the group of the target vehicle 710 may be determined based on the gap between the target vehicle 710 and the rearmost vehicle (latest turn vehicle) 720 of the preceding group.

As shown in FIG. 7 , for example, if the distance d between the target vehicle 710 and the latest turn vehicle 720 of the preceding group is less than the first designated distance (th ₁ ), the electronic device 100 (710) can be included in the preceding group.

On the other hand, as shown in FIG. 8, for example, if the interval d between the target vehicle 710 and the latest vehicle 720 of the preceding group is greater than or equal to the first designated distance (th ₁ ), the electronic device 100 If the target vehicle 710 is not included in the preceding group 730 and there is a vehicle following the target vehicle 710, a new group 740 may be formed with the target vehicle 710 as the leading vehicle.

Figure 9 is an example of vehicle group control in a lane change situation according to an embodiment.

Referring to FIG. 9 , according to one embodiment, the first vehicle 810 may determine that a lane change is necessary based on route information and transmit a lane change request to another lane to the electronic device 100. .

According to one embodiment, when the electronic device 100 obtains a lane change request, it can check whether another group exists in another lane. If another group 820 exists, the electronic device 100 may provide (e.g., transmit) a deceleration request to the vehicles 820B following the first vehicle 810 in the identified other group 820. . In accordance with the deceleration request, the following vehicles 820B in other groups decelerate, and the first vehicle 810 may cut into the space created by the deceleration of the following vehicles 820B.

According to one embodiment, the electronic device 100 may provide an acceleration request to the vehicles 820A preceding the first vehicle 810. The vehicle 820A preceding the first vehicle 810 in another group accelerates according to the acceleration request, allowing space for the first vehicle 810 to enter more quickly. In this regard, the electronic device 100 may check the gap between the lead vehicle of another group 820 and the preceding vehicle and determine whether to request acceleration.

As such, the electronic device 100 according to one embodiment may provide space for the related vehicle to fit in when a lane change is performed depending on the driving path, occurrence of an accident, etc., or support joining another group.

Figure 10 shows a flowchart of a vehicle speed synchronization method according to one embodiment.

Referring to FIG. 10, in operation 910, the electronic device 100 may acquire a plurality of vehicle location information from a plurality of vehicles through V2X communication. The vehicle location information may include vehicle identification information, vehicle location coordinates, link ID, and lane number.

In operation 920, the electronic device 100 may group vehicles driving in the same lane on the same road among the plurality of vehicles based on the plurality of vehicle location information. For example, the electronic device 100 may identify a vehicle driving in the same lane on the same road based on the link ID and lane number included in the vehicle location information.

In operation 930, the electronic device 100 may obtain speed information of the lead vehicle in each group. The electronic device 100 can identify the lead vehicle based on the position coordinate value included in the vehicle location information and obtain speed information of the lead vehicle by requesting the lead vehicle. The speed information may include at least one of speed, acceleration, accelerator status, and brake status.

In operation 940, the electronic device 100 may provide speed information of the lead vehicle to the vehicles in each group so that the speed control of the vehicles in each group is synchronized. Thereafter, vehicles belonging to the same group (e.g., 200_1 to 200_N in FIG. 3) maintain a safety distance from the preceding vehicle above the second designated distance, and accelerate with the vehicle's accelerator to approach the speed and acceleration of the leading vehicle. You can control the pedals.

In this way, the electronic device 100 according to one embodiment groups and manages vehicles traveling in the same lane, thereby supporting vehicles in the group to run synchronously like a train while maintaining the same speed and the same safety distance, so that the vehicle driver This can improve the problem of aggravating traffic congestion due to drivers not knowing how other drivers control their vehicles.

Figure 11 shows a detailed flowchart of a vehicle speed synchronization method according to an embodiment.

Referring to FIG. 11 , when the electronic device 100 confirms a lane change of the target vehicle based on vehicle location information, it may check whether the target vehicle has arrived at the destination based on the path information of the target vehicle in operation 1005. If it is confirmed that the target vehicle has arrived at the destination, in operation 1010, the electronic device 100 may exclude the target vehicle that has arrived at the destination from the existing group.

If the electronic device 100 determines that the target vehicle has not arrived at the destination in operation 1005, it may check whether there is a preceding group ahead of the target vehicle in operation 1015.

If the electronic device 100 confirms in operation 1015 that there is a preceding group ahead of the target vehicle, the electronic device 100 may include the target vehicle in the preceding group in operation 1020.

In operation 1025, the electronic device 100 may provide speed information of the lead vehicle to the target vehicle. Then, in operation 1030, the target vehicle may synchronize its speed and acceleration with the leading vehicle while maintaining a safe distance from the preceding vehicle by a second specified distance or more.

In operation 1035, if the path (eg, lane) of the target vehicle changes based on the path information, the electronic device 100 may perform operation 1005.

If the electronic device 100 confirms in operation 1015 that there is no preceding group ahead of the target vehicle, in operation 1040, the electronic device 100 designates the target vehicle as the leading vehicle of the new group and requests speed information from the target vehicle. can be transmitted. Accordingly, the electronic device 100 may change and assign the turn number to the vehicle following the target vehicle.

In operation 1045, the target vehicle transmits its speed information to the electronic device 100 in response, and the electronic device 100 may obtain the speed information of the target vehicle. The electronic device 100 may share the speed information of the target vehicle to vehicles in a new group.

In operation 1050, when the target device reaches the destination, it may transmit a group withdrawal request (or route information) to the electronic device 100. Then, the electronic device 100 may receive the group withdrawal request and perform route operation 1005 in response.

In this way, the electronic device 100 according to one embodiment is a group for speed synchronization according to various conditions such as changing the vehicle's lane, whether or not the vehicle has arrived at the destination, whether another group exists in the driving lane (or lane), and whether or not the leading vehicle exists. can be managed dynamically.

Referring to FIG. 12, the vehicle system 1200 (e.g., vehicle 200_N in FIG. 3) includes a processor 1210, a memory 1230, an input interface device 1250, and an output device that communicate through a bus 1270. It may include at least one of an interface device 1260 and a storage device 1240. Computer system 1200 may also include a communication device 1220 coupled to a network. The processor 1210 may be a central processing unit (CPU) or a semiconductor device that executes instructions stored in the memory 1230 or the storage device 1240. Memory 1230 and storage device 1240 may include various types of volatile or non-volatile storage media. For example, memory may include read only memory (ROM) and random access memory (RAM). In embodiments of the present disclosure, the memory may be located inside or outside the processor, and the memory may be connected to the processor through various known means. Memory is various forms of volatile or non-volatile storage media, for example, memory may include read-only memory (ROM) or random access memory (RAM).

The various embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the above items, unless the relevant context clearly indicates otherwise. In this document: “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C” and “A, Each of phrases such as “at least one of B, or C” may include any one of the items listed together in the corresponding phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one element from another, and may be used to distinguish such elements in other respects, such as importance or order) is not limited. One (e.g. first) component is said to be “coupled” or “connected” to another (e.g. second) component, with or without the terms “functionally” or “communicatively”. Where mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.

The term “module” used in this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are stored in a storage medium (e.g., memory 120 of FIG. 4) (e.g., internal memory or external memory) that can be read by a machine (e.g., an electronic device). It may be implemented as software (e.g., a program) including the above instructions. For example, a processor (e.g., processor 130) of a device (e.g., electronic device 120) may call at least one command among one or more commands stored from a storage medium and execute it. This means that the device It enables operation to perform at least one function according to the at least one instruction called.The one or more instructions may include code generated by a compiler or code executable by an interpreter. A readable storage medium may be provided in the form of a non-transitory storage medium, where 'non-transitory' refers to a device in which the storage medium is tangible and a signal (e.g. electromagnetic wave). ), and this term does not distinguish between cases where data is semi-permanently stored in a storage medium and cases where data is stored temporarily.

According to one embodiment, methods according to various embodiments disclosed in this document may be provided and included in a computer program product. Computer program products are commodities and can be traded between sellers and buyers. The computer program product may be distributed in the form of a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or via an application store (e.g. Play Store ^TM ) or on two user devices (e.g. It can be distributed (e.g. downloaded or uploaded) directly between smartphones) or online. In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

Components according to various embodiments of this document may be implemented in the form of software or hardware such as a digital signal processor (DSP), field programmable gate array (FPGA), or application specific integrated circuit (ASIC), and perform certain roles. can do. 'Components' are not limited to software or hardware, and each component may be configured to reside on an addressable storage medium or may be configured to run on one or more processors. As an example, a component may include components such as software components, object-oriented software components, class components, and task components, as well as processes, functions, properties, procedures, and subroutines. , may include segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.

According to various embodiments, each component (eg, module or program) of the above-described components may include a single entity or a plurality of entities. According to various embodiments, one or more of the components or operations described above may be omitted, or one or more other components or operations may be added. Alternatively or additionally, multiple components (eg, modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each component of the plurality of components in the same or similar manner as those performed by the corresponding component of the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, or omitted. Alternatively, one or more other operations may be added.

Claims

In electronic devices,

a communication module providing a communication channel for a plurality of vehicles; and

A processor functionally connected to the communication module, wherein the processor includes:

Obtaining a plurality of vehicle location information from the plurality of vehicles through the communication module,

Grouping vehicles driving in the same lane on the same road among the plurality of vehicles based on the location information of the plurality of vehicles,

Obtain speed information of the lead vehicle in each group through the communication module,

An electronic device that provides speed information of the lead vehicle to the vehicles in each group through the communication module so that speed control of the vehicles in each group is synchronized.
In claim 1,

The vehicle location information includes the link ID and lane number of the road on which each vehicle is driving,

The processor is configured to group vehicles having the same link ID and the same lane number.
The method of claim 1, wherein the processor:

Obtain more traffic information from the lead vehicle,

An electronic device that provides the traffic information to vehicles in each group.
The method of claim 1, wherein the obtained speed information of the lead vehicle is,

An electronic device that includes at least one information among the speed, acceleration, accelerator state, and brake state of the lead vehicle.
The method of claim 1, wherein the processor:

When there are vehicles of other groups preceding the lead vehicle, the electronic device configures groups by integrating or separating them based on the distance between the lead vehicle and the most trailing vehicle of the other group.
The method of claim 1, wherein the processor:

Based on the plurality of vehicle location information, determine whether there is a following vehicle in each group that satisfies a specified condition corresponding to a sudden change in speed,

An electronic device that provides speed information of the following vehicle to vehicles following the following vehicle that meet the specified conditions.
The method of claim 1, wherein the processor:

An electronic device that, upon identifying an abnormally stopped vehicle among the vehicles in each group based on the plurality of vehicle location information, provides a lane change request due to an accident to a vehicle following the abnormally stopped vehicle.
The method of claim 1, wherein the processor:

When obtaining a lane change request from at least one vehicle in each group to another lane through the communication module, check whether another group exists in the other lane,

An electronic device that provides a speed adjustment request to vehicles following the at least one vehicle in the identified other group.
The method of claim 1, wherein the processor:

Based on the plurality of vehicle location information, if a vehicle whose driving road and lane is different from that of other vehicles among the vehicles in each group or a vehicle attempting to change lane is identified, the identified vehicle is excluded from the group. Electronic devices.
In a method of vehicle speed synchronization by an electronic device,

Obtaining a plurality of vehicle location information from a plurality of vehicles;

Grouping vehicles driving in the same lane on the same road among the plurality of vehicles based on the plurality of vehicle location information;

An operation of acquiring speed information of the lead vehicle in each group; and

An operation of providing speed information of the lead vehicle to the vehicles in each group so that speed control of the vehicles in each group is synchronized.

A vehicle speed synchronization method comprising: