TW201724048A - System for controlling speed of vehicle by collecting vehicle information and intersection information and method thereof - Google Patents

Abstract

A system for controlling speed of a vehicle by collecting vehicle information and intersection information and a method thereof are provided. By receiving a light signal of an intersection ahead of a vehicle from a traffic server, gathering a current position of the vehicle, a speed of the vehicle and a speed limit of a driving section, determining whether the vehicle pass through the intersection directly in accordance with the light signal, the current position of the vehicle, the speed of the vehicle and the speed limit, and controlling the speed of the vehicle based on the determining result, the system and the method can let vehicle pass through intersection smoothly, safely and efficiently, and can achieve the effect of avoiding driver is impatient.

Description

System and method for collecting vehicle and intersection information to control vehicle speed

A vehicle speed control system and method thereof, in particular, a system and method for collecting vehicle and intersection information to control vehicle speed.

The design of the intersection of the time is designed to provide a safe and efficient transportation environment for passers-by. If the design of the Zhishi system is not good, it may cause traffic accidents, or make the vehicle stop and stop in the change of the code is not in line with the driving efficiency. For example, when there is no green light countdown in the intersection, the driver can not accelerate through the intersection in a safe situation except when the signal conversion time is close. It may also be unable to safely stop before the stop line because the speed is too fast. For example, if the driver cannot predict the conversion time of the intersection number, the corresponding adjustment of the driving speed cannot be performed, which easily causes the vehicle to have excessive parking waiting time and delays, and cannot achieve the goal of smooth and efficient passage through the multi-way. It also causes reduced driving comfort.

Therefore, the design of the time system must make trade-offs between efficiency and safety. If you want to make the intersection smooth and efficient, it will easily cause the vehicle to drive too fast, causing danger or accident. If the intersection is to be safe, the speed of passing the vehicle will decrease, and the waiting time in front of the intersection will increase, causing the driver to be unsustainable and causing danger or accident.

In summary, it can be seen that in the prior art, there has been a long-standing problem that the vehicle stops and stops in the traffic sign, which causes the driver to be intolerant. Therefore, it is necessary to propose an improved technical means to solve this problem.

In view of the prior art, there is a problem that the vehicle is inevitably caused by the stop and stop of the traffic between the traffic signs, and the present invention discloses a system and method for collecting vehicle and intersection information to control the speed of the vehicle, wherein:

The system for collecting vehicle and intersection information to control vehicle speed disclosed in the present invention includes at least: a wireless communication module for receiving a signal and a signal duration of a road ahead intersection through a wireless communication technology to a traffic server; The collection module is configured to obtain the driving speed limit of the road section driven by the vehicle, and to obtain the current position and the traveling speed of the vehicle; the parking judgment module is configured to be based on the current position of the vehicle and the traveling speed, the driving speed limit, and the front intersection The light number and duration, determine whether the vehicle can pass through the front intersection without stopping; the vehicle speed control module is used to control the vehicle speed according to the judgment result.

The method for collecting vehicle and intersection information to control the speed of the vehicle disclosed in the present invention comprises the steps of: receiving, by the wireless communication technology, a traffic server to receive the duration of the signal and the number of the road ahead of the vehicle; and obtaining the road section of the vehicle. Driving speed limit; obtaining the current position and driving speed of the vehicle; determining whether the vehicle can pass the front intersection without stopping according to the current position of the vehicle and the driving speed, the driving speed limit, the signal number and the duration of the front intersection, and according to the judgment result Control the speed of the vehicle.

The system and method disclosed by the present invention are as above, and the difference from the prior art is that the present invention uses the wireless communication technology to the traffic server to receive the signal information of the intersection in front of the vehicle, and to receive the current position, the traveling speed and the driving of the vehicle. After the speed limit of the road section, based on the obtained data, it is judged whether the vehicle can directly pass the front intersection, and the vehicle speed is controlled according to the judgment result, thereby solving the problems existing in the prior art, and achieving a smooth, safe and reliable vehicle Efficiency through the technical effects of intersections.

The features and embodiments of the present invention will be described in detail below with reference to the drawings and embodiments, which are sufficient to enable those skilled in the art to fully understand the technical means to which the present invention solves the technical problems, and The achievable effects of the present invention.

The invention can control the vehicle speed of the vehicle at least according to the current position and the traveling speed of the vehicle, the signal number of the intersection in front of the vehicle, the switching sequence and the duration, and the driving speed limit of the driving section of the vehicle, so that the vehicle can pass the intersection without stopping, or Waiting for the signal number change in front of the intersection smoothly.

The system operation of the present invention will be described below with reference to the system architecture diagram of the present invention for collecting vehicle and intersection information to control vehicle speed. As shown in FIG. 1, the system of the present invention is disposed in the vehicle 100 and includes a wireless communication module 110, an information collection module 130, a parking determination module 150, and a vehicle speed control module 170.

The wireless communication module 110 is responsible for connecting to the traffic server 400 via wireless communication technology. In general, the wireless communication module 110 can be connected to the traffic server 400 by using a wireless communication technology such as a 3G/4G network, a WiFi/WiMax network, a satellite communication network, a Bluetooth or near field communication, but the present invention provides Wireless communication technology is not limited to the above. The traffic server 400 may be disposed in the equipment room or may be disposed in a certain range around the intersection in front of the vehicle 100, and the present invention is not particularly limited.

The wireless communication module 110 is also responsible for receiving the current light number of the front intersection of the vehicle 100 and the duration of the light number by the traffic server 400. Even the wireless communication module 110 can receive the current light number of the square intersection of the vehicle 100, The order in which all the lights are converted and the duration of each light. In some embodiments, the wireless communication module 110 can also obtain the traffic condition of the intersection at the front of the vehicle 100 through the traffic server 400. In general, the wireless communication module 110 can send a request to the traffic server 400 to receive the current light number, the order of conversion of the light signals, and the duration of each light signal before the vehicle 100 returned by the traffic server 400. Even traffic conditions, but the invention is not limited thereto.

The information collection module 130 is responsible for obtaining the current position and travel speed of the vehicle 100. In general, the information collection module 130 can obtain the current position of the vehicle 100, usually the latitude and longitude data, through the positioning system disposed on the vehicle 100. The information collection module 130 can also pass through the control system of the vehicle 100 (not shown) The current travel speed of the vehicle 100 is obtained. However, the manner in which the information collecting module 130 collects the current position and the traveling speed of the vehicle 100 is not limited to the above.

The information collection module 130 is also responsible for obtaining the travel speed limit of the road section on which the vehicle 100 is traveling. The information collection module 130 can transmit the current location of the vehicle 100 to the traffic server 400 through the wireless communication module 110, so as to receive the driving speed limit returned by the traffic server 400, and the information collection module 130 can also The current location is compared to pre-established data to determine the speed limit of the current location of the vehicle 100, such as the existing portion of the vehicle navigation product. However, the manner in which the information collecting module 130 obtains the driving speed limit of the traveling section of the vehicle 100 is not limited to the above.

The parking judgment module 150 is responsible for the current position and traveling speed of the vehicle 100 obtained by the information collecting module 130, the driving speed limit of the driving section of the vehicle 100, and the current light of the intersection of the vehicle 100 received by the wireless communication module 110. The number and the duration of the light (or the current light number of the intersection of the vehicle 100, the order of conversion of all the lights, and the duration of each light) determine whether the vehicle 100 can pass the intersection without stopping. That is, when it is determined that the vehicle 100 arrives at the front intersection, whether the light signal of the front intersection indicates that the vehicle 100 can pass, or indicates that the vehicle 100 needs to wait for parking.

The parking judgment module 150 may first calculate the distance between the current position of the vehicle 100 and the intersection of the vehicle 100, and according to the current light number of the previous intersection of the vehicle 100 and the duration of the light (or the current intersection of the vehicle 100) The number of lights, the order of conversion of all lights, and the duration of each signal) calculate the maximum time that can pass directly through the front intersection, and then the distance between the vehicle 100 and the front intersection, the maximum time that can pass directly through the front intersection, and The recommended travel speed is calculated by the current travel speed of the vehicle 100, and it is judged whether the calculated recommended speed exceeds the travel speed limit of the current road section on which the vehicle 100 is traveling. When the recommended speed exceeds the driving speed limit, the parking determination module 150 can determine that the vehicle 100 needs to stop at the front intersection, and if the recommended speed does not exceed the driving speed limit, that is, less than or equal to the driving speed limit, the parking determination module 150 can It is determined that the vehicle 100 can pass directly through the front intersection without stopping. However, the parking determination module 150 determines whether the vehicle 100 can pass through the front intersection without stopping, and is not limited to the above.

In some embodiments, the parking determination module 150 may also depend on the current position of the vehicle 100 and the traveling speed, the driving speed limit of the road section on which the vehicle 100 travels, the current number of the road ahead of the vehicle 100, and the duration of the light number ( Whether the current number of the intersection of the vehicle 100, the order of conversion of all the lights, the duration of each of the lights, and the traffic condition of the intersection of the vehicle 100 determine whether the vehicle 100 can pass the front intersection without stopping. For example, even if the recommended speed calculated by the parking determination module 150 does not exceed the driving speed limit, if the traffic condition of the previous intersection is received by the wireless communication module 110 indicating that there are too many vehicles at the intersection, the parking determination module 150 determines that the parking cannot be determined. When the recommended speed is maintained to the front intersection, the parking determination module 150 may determine that the vehicle 100 cannot pass through the front intersection without stopping.

The vehicle speed control module 170 is responsible for controlling the vehicle speed of the vehicle 100 based on the determination result generated by the parking determination module 150. In general, the vehicle speed control module 170 can control the vehicle speed of the vehicle 100 through the traffic control system of the vehicle 100, but the invention is not limited thereto.

When the parking determination module 150 determines that the vehicle 100 cannot directly pass the front intersection, that is, the vehicle 100 needs to stop at the front intersection, the vehicle speed control module 170 may drive the vehicle 100 for a certain period of time, travel a certain distance, or travel to a certain location. The vehicle 100 is controlled to start deceleration, so that the vehicle 100 is smoothly stopped in front of the front intersection, and is not too late; and when the parking determination module 150 determines that the vehicle 100 can directly pass the front intersection, the vehicle speed control module 170 can control the vehicle. The vehicle 100 maintains the same traveling speed or accelerates to the recommended speed calculated by the parking determination module 150, so that the vehicle speed of the vehicle 100 does not stop and smoothly passes through the front without exceeding the driving speed limit of the traveling section. intersection.

Next, an operational system and method of the present invention will be described with reference to an embodiment. Referring to FIG. 2A, a flow chart of a method for collecting vehicle and intersection information to control vehicle speed is provided. In the present embodiment, it is assumed that the present invention is included in the line control system of the vehicle 100, but the present invention is not limited thereto.

When the vehicle 100 is traveling, the wireless communication module 110 can receive at least the light number of the intersection of the vehicle 100 and the duration of the light signal through the wireless communication technology to the traffic server 400 (step 210). In this embodiment, it is assumed that the wireless communication module 110 can attempt to connect to the traffic server 400 disposed at the front intersection using the Adhoc mode in the WiFi technology, and after successfully connecting with the traffic server 400 at the front intersection, the traffic servo is provided. The device 400 requests the current light number of the intersection ahead of the vehicle, the order of conversion of all the lights, and the duration of each light.

After the wireless communication module 110 receives the light number and duration of the intersection of the vehicle 100, the information collection module 130 can obtain the current position of the vehicle 100 and the traveling speed (step 230). In this embodiment, it is assumed that the information collecting module 130 can obtain the current latitude and longitude data (current position) of the vehicle 100 through the satellite positioning module of the vehicle 100, and calculate the driving of the vehicle 100 according to the latitude and longitude data obtained twice consecutively and the time interval. speed.

After the information collection module 130 obtains the current position of the vehicle 100 and the traveling speed (step 230), the information collection module 130 can obtain the driving speed limit of the section on which the vehicle 100 travels (step 250). In this embodiment, it is assumed that the information collection module 130 can query the traffic server 400 through the wireless communication module 110, or can query the driving route of the vehicle 100 according to the obtained current location of the vehicle 100 to the pre-established database. Driving speed limit.

The wireless communication module 110 receives the duration of the light signal and the light number of the square road before the vehicle 100 (step 210), and the information collecting module 130 obtains the current position of the vehicle 100, the traveling speed, and the line of the traveling road segment of the vehicle 100. After the vehicle speed limit (steps 230 and 250), the parking determination module 150 can determine the current position of the vehicle 100, the traveling speed, the driving speed limit of the driving section of the vehicle 100, and the wireless communication module according to the information collecting module 130. The duration of the signal and the signal number of the front intersection of the received vehicle 100 determines whether the vehicle 100 can pass through the front intersection without stopping, and is controlled by the vehicle speed control module 170 according to the judgment result generated by the parking determination module 150. The vehicle speed of the vehicle 100 (step 270).

In this embodiment, it is assumed that the parking determination module 150 and the vehicle speed control module 170 can be as shown in the flow of FIG. 2B. The parking determination module 150 first calculates the current position of the vehicle 100 and the intersection of the vehicle 100. Distance (step 271). In this embodiment, it is assumed that the parking determination module 150 can search for the location information of the intersection of the vehicle 100 in advance in the known road database according to the current location of the vehicle 100 collected by the information collection module 130, and according to the vehicle 100. The distance between the position information of the current position and the position data of the previous intersection is calculated.

The parking determination module 150 may also calculate the maximum time that can pass through the front intersection according to the light number and duration of the front intersection (step 272). In this embodiment, the parking determination module 150 can calculate the maximum time according to the signal number of the previous intersection, the conversion order of all the lights of the front intersection, and the duration of each light number received by the wireless communication module 110, for example, The current intersection is a green light, and the duration is 28 seconds. The maximum time calculated by the parking determination module 150 is 28 seconds. If the front intersection is yellow, the order of the light conversion is green, yellow, red, The green light, and the duration of each light is 3 seconds for the yellow light, 77 seconds for the green light, and 69 seconds for the red light, the maximum time calculated by the parking judgment module is 149 (3+69+77) seconds.

After the parking determination module 150 calculates the distance between the current position of the vehicle 100 and the front intersection and the maximum time of passing the front intersection, the calculated distance and maximum time, and the vehicle collected by the information collection module 130 100 The current travel speed calculates the recommended speed (step 273). In this embodiment, it is assumed that the parking determination module 150 can calculate the reference speed according to the calculated distance and the maximum time, and fine-tune according to the difference between the current traveling speed of the vehicle 100 and the calculated reference speed, for example, an additional consideration. The recommended time is calculated by the vehicle 100 increasing the current travel speed to the required time of the reference speed.

After the parking determination module 150 calculates the recommended speed, it may be determined whether the calculated recommended speed exceeds the driving speed limit of the driving section of the vehicle 100 collected by the information collecting module 130 (step 275). If the recommended speed exceeds the driving speed limit, the vehicle speed control module 170 may control the vehicle 100 to start decelerating after traveling for a certain period of time, driving a certain distance, or driving to a certain place, so that the vehicle 100 can stop before the front intersection (step 277). And if the recommended speed does not exceed the driving speed limit, the vehicle speed control module 170 can control the vehicle to maintain the driving speed or increase the vehicle speed to the recommended speed, so that the vehicle 100 can stop directly before the front intersection and directly pass the front intersection (step 278). .

As such, with the present invention, the vehicle 100 can smoothly and efficiently pass through the front intersection, thereby avoiding the danger caused by the driver of the vehicle 100 robbing the yellow light.

In addition, in the above embodiment, as shown in the flow of "2C", the wireless communication module 110 can receive at least the light number of the intersection of the vehicle 100 and the light number through the wireless communication technology to the traffic server 400. After the duration (step 210), the traffic server 400 also obtains the traffic condition at the intersection of the vehicle 100 (step 220).

After the information collection module 130 obtains the current position and the traveling speed of the vehicle 100 (step 230) and the driving speed limit of the driving route of the vehicle 100 (step 250), the parking determination module 150 can be configured according to the information collecting module 130. The current position of the collected vehicle 100, the traveling speed, the driving speed limit of the driving route of the vehicle 100, and the signal number of the intersection ahead of the vehicle 100 received by the wireless communication module 110, the duration of the light number, and the traffic condition are determined. Whether the vehicle 100 can directly pass through the front intersection without stopping, and the vehicle speed control module 170 controls the vehicle speed of the vehicle 100 according to the determination result of the parking determination module 150 (step 280). For example, if there are too many vehicles waiting to pass at the front intersection, and all the waiting vehicles cannot be passed during the one-time conversion, the parking determination module 150 can determine that the vehicle 100 cannot directly pass the front intersection, and the vehicle speed control module 170 can calculate the traveling speed of the vehicle according to the current position of the vehicle, the traveling speed, and the stop position expected by the vehicle, thereby controlling the vehicle 100 to smoothly stop waiting for the sign change before the front intersection.

In summary, it can be seen that the difference between the present invention and the prior art is that the information of the vehicle is received by the wireless communication technology to the traffic server to receive the front position of the vehicle, and the current position of the vehicle, the traveling speed, and the traveling speed of the traveling section are received. After the limitation, based on the obtained information, it is determined by the technical means that the vehicle can directly pass the front intersection and control the vehicle speed according to the judgment result, and the technical means can solve the problem that the vehicle existing in the prior art walks between the traffic signs The stoppage causes the driver to be intolerant, and the technical effect of allowing the vehicle to pass smoothly, safely and efficiently through the intersection is achieved.

Furthermore, the method for collecting vehicle and intersection information of the present invention to control the speed of the vehicle can be implemented in a combination of hardware, software or a combination of hardware and software, or can be implemented in a centralized manner in a computer system or distributed by different components. The decentralized implementation of several interconnected computer systems.

While the embodiments of the present invention have been described above, the above description is not intended to limit the scope of the invention. Any modification of the form and details of the practice of the present invention, which is a matter of ordinary skill in the art to which the present invention pertains, is a patent protection of the present invention. range. The scope of the invention is to be determined by the scope of the appended claims.

100‧‧‧ Vehicles
110‧‧‧Wireless communication module
130‧‧‧Information Collection Module
150‧‧‧Parking Judgment Module
170‧‧‧Speed Control Module
400‧‧‧Traffic Server Step 210‧‧‧Through the wireless communication technology to the traffic server to receive the signal and the duration of the signal at the intersection of the vehicle. Step 220‧‧‧From the traffic server to obtain the traffic condition at the intersection Step 230‧ ‧ ‧ Get the current position and speed of the vehicle Steps 250 ‧ ‧ Get the speed limit of the road section where the vehicle is driving Step 270‧‧‧According to the current position, driving speed, driving speed limit, signal number, and duration You can pass the intersection without stopping, and control the speed of the vehicle according to the judgment result. Step 271‧‧‧ Calculate the distance between the current position and the intersection Step 272‧‧‧ Calculate the maximum time that can pass the intersection according to the signal number and duration Step 273‧ ‧ Calculate the recommended speed based on distance, maximum time, and travel speed. Step 275‧‧‧Determine whether the recommended speed exceeds the driving speed limit. Step 277‧‧‧ Control the vehicle to start decelerating after driving for a certain period of time, driving a certain distance, or driving to a certain place. In order to stop the vehicle at the intersection 278‧‧‧ Control the vehicle to maintain the speed or increase To the recommended speed, so that the vehicle does not stop and pass the intersection step 280‧‧‧According to the current position, driving speed, driving speed limit, signal number, duration, and traffic conditions, it is judged whether the vehicle can pass the intersection without stopping, and according to the judgment Result in controlling the speed of the vehicle

FIG. 1 is a system architecture diagram of collecting vehicle and intersection information to control vehicle speed according to the present invention. 2A is a flow chart of a method for collecting vehicle and intersection information to control vehicle speed according to the present invention. Figure 2B is a flow chart showing a detailed method of controlling the speed of the vehicle according to the present invention. 2C is a flow chart of another method for collecting vehicle and intersection information to control vehicle speed according to the present invention.

Step 210‧‧‧Through the wireless communication technology to the traffic server to receive the signal and the duration of the signal at the intersection of the vehicle

Step 230‧‧‧Get the current position and speed of the vehicle

Step 250‧‧‧Get the speed limit of the section on which the vehicle is traveling

Step 270‧‧‧According to the current position, driving speed, driving speed limit, lamp number, and duration, it is judged whether the vehicle can pass through the intersection without stopping, and control the vehicle speed according to the judgment result.

Claims (10)

A method for collecting vehicle and intersection information to control vehicle speed is applied to a vehicle control system. The method includes at least the following steps: receiving a signal of a road ahead of the vehicle through a wireless communication technology to a traffic server and Obtaining one of the lights for a duration; obtaining a current position of the vehicle and a traveling speed; obtaining a driving speed limit of one of the road sections on which the vehicle is traveling; and determining the driving speed, the driving speed limit, the light number according to the current position, the driving speed, the driving speed limit And the duration determines whether the vehicle can pass the intersection without stopping, and controls the vehicle speed of the vehicle according to the judgment result. The method for collecting vehicle and intersection information to control vehicle speed according to claim 1, wherein the step of controlling the vehicle speed according to the judgment result is to control the vehicle to travel for a certain time, travel a certain distance, or travel to a certain extent. Deceleration begins after the location, so that the vehicle stops before the intersection. The method for collecting vehicle and intersection information to control vehicle speed according to claim 1, wherein the step of controlling the vehicle speed according to the judgment result is to control the vehicle to maintain the driving speed or acceleration, thereby allowing the vehicle speed The vehicle is passed through the intersection without stopping the vehicle at a speed limit of not exceeding the speed limit. The method for collecting vehicle and intersection information to control vehicle speed according to claim 1, wherein the vehicle is determined according to the current position, the driving speed, the driving speed limit, the light number, and the duration. The step of passing the intersection is to calculate a distance between the current position and the intersection, and calculate a maximum time that can pass through the intersection according to the light number and the duration, according to the distance, the maximum time, and the driving Speed calculates a recommended speed and determines if the recommended speed exceeds the driving speed limit. The method for collecting vehicle and intersection information to control vehicle speed as described in claim 1, wherein the method determines the basis according to the current position, the driving speed, the driving speed limit, the light number, and the duration Before the step of passing the intersection without stopping the vehicle, the method further comprises obtaining, by the traffic server, a traffic condition of the intersection, according to the current position, the driving speed, the driving speed limit, the driving number, the duration And the traffic condition determining whether the vehicle can pass through the intersection without stopping. A system for collecting vehicle and intersection information to control vehicle speed is applied to a vehicle. The system includes at least: a wireless communication module for receiving a light of a road ahead of the vehicle through a wireless communication technology to a traffic server And a duration of one of the lights; an information collecting module for obtaining a current position of the vehicle and a driving speed, and for obtaining a driving speed limit of one of the road sections on which the vehicle is traveling; And determining, according to the current position, the driving speed, the driving speed limit, the driving number, and the duration, whether the vehicle can pass through the intersection without stopping; and a vehicle speed control module for controlling according to the judgment result The speed of the vehicle. The system for collecting vehicle and intersection information as described in claim 6 for controlling the speed of the vehicle, wherein the vehicle speed control module controls the vehicle to start decelerating after traveling for a certain period of time, driving a certain distance, or driving to a certain place. In order to stop the vehicle before the intersection. A system for collecting vehicle and intersection information to control vehicle speed as described in claim 6 wherein the vehicle speed control module controls the vehicle to maintain the speed or acceleration so that the vehicle speed does not exceed the line. The vehicle speed limit allows the vehicle to pass through the intersection without stopping. The system for collecting vehicle and intersection information to control the speed of the vehicle, as described in claim 6, wherein the parking determination module calculates a distance between the current position and the intersection, and calculates according to the light number and the duration. The recommended time may be calculated according to the maximum time of one of the intersections, and the recommended speed is determined according to the distance, the maximum time, and the driving speed, and whether the recommended speed exceeds the driving speed limit. A system for collecting vehicle and intersection information to control the speed of a vehicle as described in claim 6 wherein the wireless communication module is further configured to obtain traffic conditions of the intersection through the traffic server, and the parking determination module is further And determining, by the current position, the driving speed, the driving speed limit, the light number, the duration, and the traffic condition, whether the vehicle can pass the intersection without stopping.