KR102739314B1 - Electronic device and the method for synchronizing vehicle speed - Google Patents

Abstract

An electronic device according to one embodiment disclosed in the present document comprises: a communication module providing a communication channel for a plurality of vehicles; and a processor functionally connected to the communication module, wherein the processor obtains a plurality of vehicle location information from the plurality of vehicles through the communication module, groups vehicles driving in the same lane of the same road among the plurality of vehicles based on the plurality of vehicle location information, obtains speed information of a leading vehicle in each group through the communication module, and provides the speed information of the leading 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 THE METHOD FOR SYNCHRONIZING VEHICLE SPEED}

This study was conducted as a result of the Autonomous Driving Technology Development Innovation Project (20014361) supported by the Ministry of Trade, Industry and Energy and the Korea Industrial Technology Assessment and Management Institute.

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

Traffic congestion is a common phenomenon in places with a lot of traffic, and one of the causes is the change in vehicle speed (acceleration, deceleration) due to changes in traffic conditions. For example, traffic congestion caused by changes in vehicle speed due to changes in traffic conditions includes phantom traffic jams and moving bottlenecks.

Figure 1 is a drawing for explaining a phantom traffic jam that causes conventional traffic congestion, and Figure 2 is a drawing for explaining a moving bottleneck phenomenon that causes conventional traffic congestion.

According to the phantom traffic jam, when a vehicle in the next lane cuts in front of a vehicle, the vehicle must judge the movement of the vehicle in front and apply the brakes to reduce its speed, which causes a delay time. The vehicles following the vehicle must also judge the movement of the vehicle in front and slow down, which causes a delay time. This delay time accumulates as you go to the vehicles behind, so the vehicles behind you will gradually slow down and eventually stop.

For example, referring to Figure 1, a phantom identity is explained as follows.

- Lane change occurred for vehicle number 0.

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

- A change in speed occurs in vehicle 2. At this time, vehicle 2 decelerates after determining that vehicle 1 has slowed down, resulting in a delay.

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

Referring to Figure 2, the moving bottleneck phenomenon is a phenomenon in which one vehicle on the road impedes the flow of other vehicles by driving at a slower speed than other vehicles.

The driver of the following vehicle visually checks the control status of the preceding vehicle and determines the driving style that can prevent accidents before driving, so there is a delay in the process of checking and determining. Accordingly, traffic congestion caused by the preceding vehicle can accumulate and become worse as it goes on.

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

An electronic device according to one embodiment disclosed in the present document comprises: a communication module providing a communication channel for a plurality of vehicles; and a processor functionally connected to the communication module, wherein the processor obtains a plurality of vehicle location information from the plurality of vehicles through the communication module, groups vehicles driving in the same lane of the same road among the plurality of vehicles based on the plurality of vehicle location information, obtains speed information of a leading vehicle in each group through the communication module, and provides the speed information of the leading vehicle to the vehicles in each group through the communication module so that speed control of the vehicles in each group is synchronized.

In addition, a method for synchronizing vehicle speeds by an electronic device according to an embodiment disclosed in the present document may include an operation of obtaining a plurality of vehicle location information from a plurality of vehicles; an operation of grouping vehicles driving in the same lane of the same road among the plurality of vehicles based on the plurality of vehicle location information; an operation of obtaining speed information of a leading vehicle in each group; and an operation of providing speed information of the leading 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, it is possible to synchronize the speed of a vehicle driving on a road. In addition, various effects that are directly or indirectly recognized through this document can be provided.

Figure 1 is a drawing to explain phantom traffic jams that cause conventional traffic congestion.
Figure 2 is a drawing to explain the moving bottleneck phenomenon that causes conventional traffic congestion.
Figure 3 is an implementation environment of an electronic device according to one embodiment.
Figure 4 is a block diagram of an electronic device according to one embodiment.
Figures 5 and 6 are examples of vehicle speed synchronization according to one embodiment.
Figures 7a and 7b are examples of vehicle group integration or separation according to one embodiment.
Fig. 8 is an example of group control of a lane change situation according to one embodiment.
Fig. 9 is a flow chart of a vehicle speed synchronization method according to one embodiment.
Fig. 10 is a detailed flowchart of a vehicle speed synchronization method according to one embodiment.
In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

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

Referring to FIG. 3, according to one embodiment, the vehicle (200_1 ... 200_N) may be a vehicle having a function of assisting a driver's driving, such as an autonomous vehicle. The vehicle (200_1 ... 200_N) may be equipped to enable V2X (vehicle to everything) communication. For example, the vehicle (200_1 ... 200_N) may enable V2I (vehicle to infrastructure) communication with an electronic device (100).

According to one embodiment, the electronic device (100) may be, for example, a business server providing a vehicle speed synchronization service, but is not limited thereto.

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

According to one embodiment, the electronic device (100) can group vehicles driving in the same (same) lane of 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 vehicles driving in the same lane of 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) may obtain speed information of a leading vehicle (200_1) in each group and provide the obtained speed information to vehicles (200_1 to N, where N is a constant of 2 or more) in the group, thereby synchronizing speed control of the vehicles in the group. The speed information may include at least one of information on speed, acceleration, an accelerator state, or a brake state. A following vehicle (e.g., 200_N) in the group may directly check the speed of the leading vehicle and follow the speed of the leading vehicle. Accordingly, the electronic device (100) according to one embodiment may support vehicles in the same lane to move at the same speed and acceleration like a train, thereby reducing a driver's decision time and alleviating traffic congestion caused by the same.

According to one embodiment, when the electronic device (100) determines that a 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, the electronic device (100) may provide speed information of the following vehicle to the following vehicle. For example, the electronic device (100) may determine that the specified condition is met in at least one of the cases of a driving vehicle suddenly decelerating, suddenly stopping, or changing lanes.

According to one embodiment, the electronic device (100) can separate, reconfigure, or merge groups based on path information or vehicle location information. For example, if the electronic device (100) identifies a vehicle in each group that has a change in the driving road or lane, it can exclude the identified vehicle from the group.

In this way, the electronic device (100) according to one embodiment can share the control state with respect to vehicles driving in the same lane, thereby reducing the judgment time required to check the control state of the leading vehicle and determine how to drive, and thus alleviating traffic congestion.

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

Referring to FIG. 4, an 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, the electronic device (100) may further include an input device (not shown) for receiving a user input and an output device (not shown) for outputting an auditory or visual element. In addition, some of the components of the electronic device (100) may be combined to form a single entity, but may perform the functions of the corresponding components prior to combination in the same manner.

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

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

The memory (120) may include various forms of volatile memory or nonvolatile memory. For example, the memory may include read only memory (ROM) and random access memory (RAM). In the embodiments of the present disclosure, the memory may be located internally or externally to the processor, and the memory (120) may be connected to the processor (130) through various means already known.

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

According to one embodiment, the processor (130) can obtain a plurality of vehicle location information from a plurality of vehicles through the communication module (110). The vehicle location information can include at least one of vehicle identification information (ID), vehicle location coordinate values, link ID for the driving road of each vehicle, and driving lane number of each vehicle. In this regard, the processor (130) can provide a vehicle speed synchronization service for 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 on the same (same) lane of the same road among the 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 having the same link ID and lane number.

The processor (130) can group vehicles that are driving in the same lane of the same road and have a distance from a preceding vehicle of less than a first designated distance. The first designated distance is a reference distance for determining whether to control the speed by grouping vehicles driving in the same lane, and can be set to be greater than a normal safety distance between vehicles. The first designated distance can be, for example, about 15 m corresponding to a sensor equipped in each vehicle or the driver's visibility. The 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) can check the driving order of each vehicle within the group based on the location coordinate value included in the vehicle location information, and sequentially assign a sequence number (order number) to the vehicles within the group according to the driving order. The processor (130) can store at least a part of the vehicle location information (e.g., driving road and driving lane), each vehicle identification information, and the sequence number within the group in relation to each other in the memory (120). Thereafter, the processor (130) can 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 the sequence information related to the vehicle identification information. The processor (130) can provide (assign) the group information and the sequence information to each vehicle, and can also use them only for its own group management. If a change occurs in the vehicles within the group due to various reasons such as a lane change or arrival at a destination, the processor (130) can reallocate and assign a sequence number.

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

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

Thereafter, the vehicles belonging to the same group (e.g., when 200_1 of FIG. 3 is the leading vehicle, the vehicles following the vehicle (200_1)) can control the accelerator and the accelerator pedal of each vehicle to approach the speed and acceleration of the leading vehicle while maintaining a safe distance from the preceding vehicle of a second designated distance or more. The second designated distance can be set to a normal safe distance. The second designated distance can be, for example, 5 m. The second designated distance can be set to a distance at which the vehicles can depart simultaneously after confirming the departure of the leading vehicle. The second designated distance can be set to be the same for all vehicles in each group. In this regard, the processor (130) can share the second designated distance corresponding to the safe distance with the vehicles in each group. The first designated distance and the second designated distance can be fixedly set and can vary depending on road conditions (e.g., straight road, curved road, section with frequent accidents), weather conditions (in case of rain), or traffic information (e.g., average speed, speed limit).

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

According to one embodiment, the processor (130) may determine (or monitor) whether a following vehicle within a group meets a specified condition corresponding to a sudden change in speed based on vehicle location information acquired from each group. For example, the processor (130) may determine that the specified condition is met in at least one of cases where the following vehicle suddenly decelerates, suddenly stops, or changes lanes.

When the processor (130) identifies a following vehicle that meets a specified condition, it can provide speed information of the identified vehicle to a vehicle with a later order than the identified vehicle (a vehicle driving after the identified vehicle). In this case, the following vehicles that have received speed information of the identified vehicle can perform rapid deceleration or rapid stop, or perform avoidance control such as lane change, according to the speed information provided.

According to one embodiment, when the processor (130) identifies an abnormally stopped vehicle within a group based on vehicle location information, the processor (130) may reconstruct the target group based on the identified stopped vehicle. The abnormally stopped vehicle may be, for example, a vehicle that has stopped at a distance greater than a third specified distance from the preceding vehicle due to a reason (e.g., breakdown) other than a stop for securing a safe distance, such as waiting for a signal or traffic congestion. The third specified distance may be set to exceed the second specified distance. In this regard, when the abnormally stopped vehicle identifies an abnormally stopped state, the electronic device (100) may transmit emergency situation information (e.g., accident type information). Then, the electronic device (100) may perform follow-up measures (e.g., calling a tow truck) for accident recovery of the abnormally stopped vehicle.

For example, when the processor (130) identifies an abnormally stopped vehicle, it can transmit a lane change request to a following vehicle within the group of the abnormally stopped vehicle through the communication module (110). The processor (130) can check whether another group exists in the lane next to the following vehicle within the group, and if another group exists, it can transmit a deceleration request to a following vehicle within the other group of the abnormally stopped vehicle. Then, a decelerated vehicle within the other group occurs according to the deceleration request, and the following vehicle within the group can cut into the space created by the decelerated vehicle.

According to one embodiment, the processor (130) may obtain a lane change request from at least one vehicle in each group to another lane through the communication module (110). When the processor (130) obtains the lane change request, it may check whether another group configured in another lane exists. If another group exists in another lane, the processor (130) may provide (e.g., transmit) a deceleration request to vehicles located behind at least one vehicle in the other group. Thereafter, a decelerating vehicle in another group occurs according to the deceleration request, and the vehicle requesting the lane change may cut into the space created by the decelerating vehicle.

According to one embodiment, the processor (130) may, based on vehicle location information, identify a vehicle in each group that has changed lanes or is attempting to change lanes, and may exclude the identified vehicle from the group. For example, if the processor (130) identifies a vehicle separated from a preceding vehicle due to a traffic signal among the vehicles in each group, 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. As another example, the processor (130) may exclude a vehicle that has changed lanes among the vehicles in each group from the group of the previous lane and group the vehicle in the changed lane.

According to one embodiment, the processor (130) may obtain additional route information from a plurality of vehicles through the communication module (110), and may configure different groups according to the routes of each vehicle based on the route information. For example, the processor (130) may distinguish between vehicles going straight and vehicles turning left (or right) among vehicles in a group waiting for a signal in a single lane where going straight and turning left (or right) are possible based on the route information. The processor (130) may configure vehicles going straight as a first group, and vehicles turning left (or right) as a second group based on the route information.

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

In this way, the electronic device (100) according to one embodiment can reduce unnecessary judgment time by synchronizing speed and acceleration (and a second designated distance) so that all vehicles in the same lane run in synchronization like a train, thereby alleviating traffic congestion. Specifically, the electronic device (100) according to one embodiment can dynamically group and manage vehicles running in the same lane through V2X communication, and share the speed of the leading vehicle within the group to synchronize the acceleration/deceleration of the following vehicle, thereby alleviating traffic congestion caused by conventional speed changes.

In addition, the electronic device (100) according to one embodiment can share changed speed information with a vehicle following the target vehicle when sudden deceleration, sudden stop, or abnormal stop occurs, thereby safely braking the vehicle following the target vehicle to prevent a chain collision accident, and can support lane change of the vehicle following the target vehicle depending on the situation, thereby improving driving decision time and traffic congestion.

In addition, the electronic device (100) according to one embodiment can dynamically adapt to 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, a group configuration according to one embodiment will be described in detail with reference to FIGS. 5 to 8.

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

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

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

Referring to FIG. 6, the 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 inter-vehicle safety distance as the second designated distance. Accordingly, the vehicles in the synchronized group can drive while synchronizing with the speed of the leading vehicle while securing the safety distance. For example, the vehicles in the first lane group can be synchronized at a speed of 20 km/h according to the speed of the leading vehicle, the vehicles in the second lane group can be synchronized at a speed of 50 km/h according to the speed of the leading vehicle, and the vehicles in the third lane group can be synchronized at a speed of 80 km/h according to the speed of the leading vehicle.

Referring to FIGS. 7A and 7B , an electronic device (100) according to one embodiment may determine the group of a target vehicle (710) based on the distance between the target vehicle (710) and the last vehicle (latest vehicle) (720) of the preceding group, if there are vehicles (e.g., 720) in a group that is a leading vehicle of an already configured group or a newly identified target vehicle (710) based on vehicle location information.

As in FIG. 7a, for example, if the distance (d) between the target vehicle (710) and the latest vehicle in the preceding group (720) is less than the first designated distance (th ₁ ), the electronic device (100) may include the target vehicle (710) in the preceding group.

On the other hand, as in FIG. 7b, for example, if the distance (d) between the target vehicle (710) and the latest vehicle in the preceding group (720) is greater than or equal to the first designated distance (th ₁ ), the electronic device (100) may not include the target vehicle (710) in the preceding group (730), and if there is a vehicle following the target vehicle (710), may form a new group (740) with the target vehicle (710) as the leading vehicle.

Fig. 8 is an example of vehicle group control in a lane change situation according to one embodiment.

Referring to FIG. 8, 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) can provide (e.g., transmit) a deceleration request to the following vehicles (820B) of the first vehicle (810) in the identified other group (820). According to the deceleration request, the following vehicles (820B) in the other group decelerate, and the first vehicle (810) can cut into the space created by the deceleration of the following vehicles (820B).

In one embodiment, the electronic device (100) may provide an acceleration request to the preceding vehicles (820A) of the first vehicle (810). The preceding vehicles (820A) of the first vehicle (810) in the other group may accelerate in response to the acceleration request so that a space for the first vehicle (810) to cut in may be created sooner. In this regard, the electronic device (100) may check the gap between the leading vehicle of the other group (820) and its preceding vehicle and determine whether to request acceleration.

In this way, the electronic device (100) according to one embodiment can provide space for a related vehicle to squeeze in or support joining another group when a lane change is performed due to a driving route, an accident, etc.

Figure 9 shows a flow chart of a vehicle speed synchronization method according to one embodiment.

Referring to FIG. 9, in operation 910, the electronic device (100) may obtain multiple vehicle location information from multiple vehicles through V2X communication. The vehicle location information may include vehicle identification information, vehicle location coordinate values, link ID, and lane number.

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

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

In operation 940, the electronic device (100) may provide speed information of the leading vehicle to the vehicles in each group so that speed control of the vehicles in each group is synchronized. Thereafter, the vehicles belonging to the same group (e.g., 200_1 to 200_N in FIG. 3)) may control the accelerator and accelerator pedal of the vehicles to approach the speed and acceleration of the leading vehicle while maintaining a safety distance from the preceding vehicle of at least a second designated distance.

In this way, the electronic device (100) according to one embodiment manages vehicles driving on the same lane by grouping them, thereby supporting vehicles within the group to drive synchronously like a train while maintaining the same speed and the same safety distance, thereby improving the problem of traffic congestion aggravated by vehicle drivers not knowing the vehicle control patterns of other drivers.

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

Referring to FIG. 10, if the electronic device (100) determines that the target vehicle has changed lanes based on vehicle location information, in operation 1005, it can determine whether the target vehicle has arrived at the destination based on the route information of the target vehicle. If it is determined that the target vehicle has arrived at the destination, in operation 1010, the electronic device (100) can exclude the target vehicle that has arrived at the destination from the existing group.

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

If the electronic device (100) determines in operation 1015 that there is a preceding group ahead of the target vehicle, then in operation 1020, the electronic device (100) can include the target vehicle in the preceding group.

At operation 1025, the electronic device (100) can provide speed information of the leading vehicle to the target vehicle. Then, at operation 1030, the target vehicle can synchronize speed and acceleration with the leading vehicle while maintaining a safety distance of a second designated distance or more from the preceding vehicle.

In operation 1035, the electronic device (100) may perform operation 1005 if the path (e.g., lane) of the target vehicle has changed based on the path information.

If the electronic device (100) determines in operation 1015 that there is no preceding group ahead of the target vehicle, in operation 1040, the electronic device (100) may designate the target vehicle as the leading vehicle of a new group and transmit a speed information request to the target vehicle. Accordingly, the electronic device (100) may change and assign a sequence number for the following vehicle of the target vehicle.

In operation 1045, the target vehicle responds by transmitting its speed information to the electronic device (100), and the electronic device (100) can obtain the speed information of the target vehicle. The electronic device (100) can share the speed information of the target vehicle with vehicles in the new group.

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

In this way, the electronic device (100) according to one embodiment can dynamically manage groups for speed synchronization according to various conditions such as whether the vehicle has changed lanes, whether the destination has been reached, whether there are other groups in the driving lane (or lane), and whether there is a leading vehicle.

Fig. 11 is a block diagram showing a vehicle system for implementing a speed sharing method according to one embodiment.

Referring to FIG. 11, a vehicle system (1000) (e.g., vehicle (200_N) of FIG. 3) may include at least one of a processor (1010), a memory (1030), an input interface device (1050), an output interface device (1060), and a storage device (1040) communicating via a bus (1070). The computer system (1000) may further include a communication device (1020) coupled to a network. The processor (1010) may be a central processing unit (CPU), or a semiconductor device that executes instructions stored in the memory (1030) or the storage device (1040). The memory (1030) and the storage device (1040) may include various forms of volatile or nonvolatile storage media. For example, the memory may include a read only memory (ROM) and a random access memory (RAM). In embodiments of the present disclosure, the memory may be located internally or externally to the processor, and the memory may be connected to the processor via various means known in the art. The memory may be a variety of volatile or nonvolatile storage media, and for example, the memory may include read-only memory (ROM) or random access memory (RAM).

The various embodiments of this document and the terminology used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to encompass various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals 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 items, unless the context clearly indicates otherwise. In this document, each of the phrases "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 "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish the corresponding component from other corresponding components, and do not limit the corresponding components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as being “coupled” or “connected” to another component (e.g., a second component), with or without the terms “functionally” or “communicatively,” it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

The term "module" as 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 integrally configured component or a minimum unit of the component or a portion thereof that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document may be implemented as software (e.g., a program) including one or more commands stored in a storage medium (e.g., a memory (120) of FIG. 4) (e.g., an internal memory or an external memory) readable by a machine (e.g., an electronic device). For example, a processor (e.g., processor (130)) of a device (e.g., electronic device (100)) can call at least one command from among one or more commands stored from a storage medium and execute it. This enables the device to operate to perform at least one function according to the called at least one command. The one or more commands may include code generated by a compiler or code executable by an interpreter. The storage medium readable by the device may be provided in the form of a non-transitory storage medium. Here, ‘non-transitory’ only means that the storage medium is a tangible device and does not include a signal (e.g., electromagnetic wave), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily in the storage medium.

According to one embodiment, the method according to various embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded between a seller and a buyer as a commodity. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., a compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store ^TM ) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a part of the computer program product may be at least temporarily stored or temporarily generated in a machine-readable storage medium, such as a memory of a manufacturer's server, a server of an application store, or an intermediary 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), a field programmable gate array (FPGA), or an application specific integrated circuit (ASIC), and may perform predetermined roles. The 'components' are not limited to software or hardware, and each component may be configured to be in an addressable storage medium and may be configured to play one or more processors. As an example, the components may include components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables.

According to various embodiments, each component (e.g., a module or a program) of the above-described components may include a single or multiple entities. According to various embodiments, one or more of the components or operations of the above-described components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the components of the plurality of components identically or similarly to those performed by the corresponding component of the plurality of components prior to the integration. According to various embodiments, the operations performed by the module, program or other component may be executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims (10)

In electronic devices,
A communication module providing a communication channel for multiple vehicles; and
A processor functionally connected to the above communication module, the processor comprising:
Obtaining multiple route information and multiple vehicle location information from the multiple vehicles through the above communication module, and the vehicle location information includes the lane number in which each vehicle is driving,
Based on the above plurality of route information and the above plurality of vehicle location information, among the above plurality of vehicles, vehicles driving in the same lane of the same road and having a distance from the preceding vehicle less than a first specified distance are grouped,
Through the communication module, the speed information of the leading vehicle in each group is obtained, and the speed information of the leading vehicle is provided to the vehicles in each group through the communication module so that the speed control of the vehicles in each group is synchronized.
Synchronizing the speed control of vehicles within each group above is done by:
Controlling the accelerator and accelerator pedal of each vehicle so that the vehicles in each group maintain a distance from the preceding vehicle of the same safety distance less than the first designated distance, and get closest to the speed and acceleration of the leading vehicle;
The above first designated distance may vary depending on road conditions, weather conditions and traffic information.
Based on the above plurality of vehicle location information, it is determined whether there is a following vehicle within each group that meets the specified conditions corresponding to a rapid speed change,
An electronic device that provides speed information of the identified following vehicle to a vehicle following the identified following vehicle. In claim 1, the processor,
An electronic device that assigns group information and sequence information to vehicles within each group and manages the group to which each vehicle belongs and the sequence within each group based on the group information and sequence information. In claim 1, the processor,
Obtain further traffic information including front traffic light information from the above leading vehicle,
An electronic device that provides the above traffic information to vehicles within each group. In claim 1, the acquired speed information of the leading vehicle is,
An electronic device comprising at least one piece of information among speed, acceleration, accelerator status, and brake status of the lead vehicle. In claim 1, the processor,
An electronic device that, when there are other groups of vehicles preceding the lead vehicle, configures groups by integrating or separating them based on the gap between the lead vehicle and the last vehicle of the other groups. delete In claim 1, the processor,
An electronic device that identifies an abnormally stopped vehicle among the vehicles in each group based on the plurality of vehicle location information and provides a lane change request to the vehicle following the abnormally stopped vehicle due to an accident. In claim 1, the processor,
When a lane change request to another lane is obtained from at least one vehicle in each group through the above communication module, it is checked whether another group exists in the other lane,
An electronic device providing a speed control request to following vehicles for at least one vehicle within the identified other group. In claim 1, the processor,
An electronic device that, based on the plurality of vehicle location information, identifies a vehicle among the vehicles in each group that has changed driving roads and lanes or is attempting to change lanes, and excludes the identified target vehicle from the group. In a method for synchronizing vehicle speed by an electronic device,
An operation of obtaining multiple route information and multiple vehicle location information from multiple vehicles; the vehicle location information includes the lane number in which each vehicle is driving,
An operation of grouping vehicles among the plurality of vehicles that are driving in the same lane of the same road and have a distance from a preceding vehicle less than a first specified distance based on the plurality of route information and the plurality of vehicle location information;
An operation to obtain speed information of the leading vehicle in each group; and
Including an operation of providing 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,
Synchronizing the speed control of vehicles within each group above is done by:
Controlling the accelerator and accelerator pedal of each vehicle so that the vehicles in each group maintain the same safe distance from the preceding vehicle less than the first designated distance and get closest to the speed and acceleration of the leading vehicle.
The above first designated distance may vary depending on road conditions, weather conditions and traffic information.
An operation of determining whether there is a following vehicle within each group whose speed change satisfies a specified condition corresponding to a rapid speed change based on the plurality of vehicle location information;
A vehicle speed synchronization method further comprising an action of providing speed information of the identified following vehicle to a subsequent vehicle of the identified following vehicle.

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