Speed ​​monitoring method for a vehicle using wireless communication

Abstract

Vehicle speed monitoring procedure, which includes the following steps: Receiving and recording, by a base station (7) located in an investigation area (R2), of information about a first vehicle (100) from a communication unit in the first vehicle (100); Determining the speed of the first vehicle (100) using the information gathered about the first vehicle (100); and Identifying the first vehicle (100) as a speeding vehicle if the detected speed of the first vehicle (100) is higher than a reference maximum speed at a time when the first vehicle (100) entered the detection area (R2); wherein, if the first vehicle (100) is outside a communication range of a non-detection area (R1), the receiving and acquiring step further comprises: Receiving information about the first vehicle (100) from a communication unit in a second vehicle (200) located at a communication-capable distance from the first vehicle (100), and Delivering information about the first vehicle (100) to the base station (7).

Description

BACKGROUND OF THE INVENTION Area of ​​the invention

[0001] The present invention relates to a speed monitoring method for carrying out speed monitoring by measuring the speed of a vehicle, and in particular to a speed monitoring method for carrying out vehicle speed monitoring using wireless communication. Description of the state of the art

[0002] Recently, various speed monitoring methods have been implemented. Methods for more accurate and cost-effective measurement of speeding violations are constantly being developed.

[0003] A loop detector, a camera detector, and a radar detector are representative of the most widely used method. The loop detector detects and amplifies a slight change in inductance generated by a vehicle passing over loop coil sensors to measure the vehicle's presence and speed. This is achieved by burying two loop coil sensors per lane in an asphalt road surface and connecting them together. Additionally, the camera detector measures and analyzes the traffic volume of vehicles traveling on a road in real time using a video camera or similar device. Furthermore, the radar detector receives a signal reflected from a vehicle using radar and records the vehicle's speed and model, traffic volume, etc., regardless of weather conditions.

[0004] These conventional speed monitoring methods have the disadvantage that the effect of speed monitoring is essentially small because many drivers usually only adhere to the legally prescribed speed in an enforcement area, since monitoring only takes place in a specific area, and drive at a speed exceeding the legally prescribed speed in a non-enforcement area.

[0005] Furthermore, in this case there is a problem in that the risk of an accident is high because drivers tend to suddenly reduce their vehicle speed in the non-investigation area.

[0006] Furthermore, because a device like the loop detector used in the speed monitoring method described above is very expensive, there is a problem in that the initial setup costs and maintenance costs are high. List of oppositions patent literature (Patent literature 1) Korean patent application Publication number KR 10 2011 0 096 221 A (Patent literature 2) Korean patent application Publication number KR 10 2008 0 047 924 A

[0007] KR 10 2010 0 000 138 A describes a method for transmitting status information to cars in order to monitor the current speed of moving vehicles and to control speeding violations.

[0008] KR 10 2008 0 047 924 A describes a method for processing traffic information, whereby traffic information is provided as precisely as possible by analyzing the driving speed of vehicles via Bluetooth communication.

[0009] EP 1 755 094 A1 describes a vehicle information processing device arranged in a vehicle to communicate wirelessly and which has a function as a communication terminal device for sending and receiving information without an access point to form an ad-hoc wireless communication network. SUMMARY OF THE INVENTION

[0010] The object of the present invention is to provide a vehicle speed monitoring method that can identify the speed of a vehicle in real time and reduce the costs required for speed monitoring.

[0011] Naturally, the technical problems to be solved by the present invention are not limited to the aforementioned problems, and further unmentioned technical problems will be obvious to a person skilled in the art from the following description.

[0012] In accordance with the present invention, a vehicle speed monitoring method having the features of claim 1 is provided.

[0013] Advantageous further training opportunities arise from the dependent sub-requirements.

[0014] The vehicle speed monitoring method according to the present invention has the advantage that the speeding of a vehicle can also be measured outside of a non-detection area because the speed of the vehicle can be identified in real time.

[0015] Furthermore, an advantage is that the installation and maintenance costs of a device for use in speed monitoring are low.

[0016] Furthermore, an advantage is that information about a vehicle can also be received at a location outside of a communication range using multi-hop technology.

[0017] The effects of the present invention are not limited to those mentioned above. The person skilled in the art, to whom the present invention is addressed, will readily understand that various other effects can be obtained from the present invention described below. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a diagram showing a conventional vehicle speed monitoring procedure. Fig. Figure 2 is a diagram showing a state in which a target vehicle is traveling in a non-detection area and a detection area, in a vehicle speed monitoring method according to a first exemplary embodiment of the present invention. Fig. Figure 3 is a diagram showing a state in which information about a target vehicle is received using a communication unit in an intermediate vehicle when the target vehicle is traveling at a position outside a communication range of a non-detection range, in a vehicle speed monitoring method according to a second exemplary embodiment of the present invention. Fig. Figure 4 is a diagram showing a state in which information about a target vehicle is received using an auxiliary base station provided in a structure on one side of the road, when the target vehicle is traveling at a position outside a communication range of a non-detection area, in a vehicle speed monitoring method according to a third exemplary embodiment of the present invention. Fig. Figure 5 is a flowchart showing a vehicle speed monitoring process in the vehicle speed monitoring method according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] A vehicle speed monitoring method according to the present invention is described in detail below with reference to the drawings.

[0019] Fig. Figure 1 is a diagram showing a conventional vehicle speed monitoring procedure.

[0020] In Fig. Figure 1 shows the most widely used vehicle speed monitoring method in the conventional manner. Referring to Fig. 1. No speed measurement is taken if a vehicle travels at 100 km / h in a non-detection zone R1. Furthermore, if the vehicle travels through a detection zone R2, a loop detector 10 buried under the road identifies the time the vehicle enters and the time it passes through the zone in order to measure the vehicle's speed. At this time, a camera system 5 photographs the vehicle if its speed is higher than the legally prescribed speed.

[0021] Fig. Figure 2 is a diagram showing a state in which a target vehicle 100 is traveling in a non-detection area R1 and a detection area R2, in a vehicle speed monitoring method according to a first exemplary embodiment of the present invention.

[0022] As a first step towards speed monitoring, a base station 7, located in the investigation area R2, receives information about the target vehicle 100 from a communication unit provided in the target vehicle 100 to measure the speed of the target vehicle 100.

[0023] At this point, information is transmitted between the communication unit in the target vehicle 100 and the base station 7 using wireless communication. Various known communication methods can generally be used for wireless communication. Since these are known to those skilled in the art, a detailed description is omitted.

[0024] Furthermore, information about the target vehicle 100 can include various pieces of information, such as vehicle-specific information, GPS data, and the vehicle's speed. The next step involves determining the speed of the target vehicle 100 using the received information.

[0025] In this step, the current speed of target vehicle 100 can be determined using the information about target vehicle 100. At this point, no further action is taken if the speed of target vehicle 100 is less than or equal to a reference speed limit on the road on which the target vehicle 100 is currently traveling. However, a further action can be taken if the speed of target vehicle 100 exceeds the reference speed limit of the road on which the target vehicle 100 is currently traveling.

[0026] If, for example, the target vehicle's speed is higher than the reference maximum speed, a speeding warning can be issued to the target vehicle 100 before it enters the detection zone R2. This allows the driver to recognize that their vehicle is exceeding the speed limit and reduce their speed before entering the detection zone.

[0027] Then, if the speed of the target vehicle 100 is higher than the reference maximum speed at a time when the target vehicle 100 has entered the investigation area R2, the step of identifying the target vehicle as a speeding vehicle is carried out.

[0028] When the target vehicle 100 reaches the detection area R2, while base station 7 is collecting information about the target vehicle in real time as described above, its speed at the time of arrival can be determined. If the determined speed is higher than the reference maximum speed, the target vehicle 100 can be identified as a speeding vehicle.

[0029] At this point, the additional step of taking a picture of the target vehicle 100 using the photo system 5 provided in the investigation area R2 can be carried out when the target vehicle 100 enters the investigation area R2.

[0030] Furthermore, the step of storing the information about the target vehicle 100, which was identified as a speeding vehicle, and the step of sending the information to another entity, for example a police station, an insurance company or a traffic control center, can then be carried out.

[0031] As described above, the vehicle speed monitoring method of the present invention has an advantage in that it is also possible to measure the presence / absence of speeding of the vehicle outside a non-detection area, because the speed of the vehicle can be identified in real time based on wireless communication, and that the setup and maintenance costs of a device for use in speed monitoring are low.

[0032] Fig. Figure 3 is a diagram showing a state in which information about a target vehicle is received using a communication unit in an intermediate vehicle when the target vehicle is traveling at a position outside a communication range of a non-detection range, in a vehicle speed monitoring method according to a second exemplary embodiment of the present invention.

[0033] As in Fig. 3. A non-detection area R1 may have a first non-detection area R3 within a communication area of ​​a base station 7a, in which the vehicle has a later entry time, a third non-detection area R5 within a communication area of ​​a base station 7b, through which the vehicle has already driven, and a second non-detection area R4 outside the communication areas of the two base stations 7a and 7b, considered in the context of the total road length.

[0034] Because the first non-detection area R3 and the third non-detection area R5 are located within the communication areas of the neighboring base stations 7a and 7b, the base stations 7a and 7b can detect the speeding vehicle in the respective areas.

[0035] However, a problem exists in that neither base station 7a nor 7b receives information about the target vehicle 100 if the target vehicle 100 is located in the second non-detection area R4. Therefore, in this case, a method can be used whereby a communication unit in an intermediate vehicle 200, located at a distance where communication with the target vehicle 100 is possible and which can communicate with at least one base station, receives information about the target vehicle 100 and transmits the information to either base station 7a or 7b. Furthermore, communication between vehicles can be carried out at this time according to a Wireless Access in Vehicle Environment (WAVE) protocol.

[0036] Naturally, a large number of intermediate vehicles 200 are available when the procedure described above is used. This means that the large number of intermediate vehicles 200 can successively exchange information about the target vehicle 100 with each other in order to transmit the information to base stations 7a and 7b.

[0037] Fig. Figure 4 is a diagram showing a state in which information about a target vehicle 100 is received using an auxiliary base station provided in a structure 5c on a side of the road, when the target vehicle 100 is driving in a second non-detection area R4 outside a communication area of ​​a non-detection area R1, in a vehicle speed monitoring method according to a third exemplary embodiment of the present invention.

[0038] In contrast to the method of receiving information about the target vehicle 100 using the intermediate vehicle 200 in the case of the second exemplary embodiment described above, this exemplary embodiment uses a method for receiving information by communicating with the target vehicle 100 in order to deliver the received information to the base stations 7a and 7b by pre-installing the auxiliary base station in the structure 5c on the roadside.

[0039] Furthermore, a wide variety of roadside structures, for example, a street lamp on one side of the road or a median strip, can be used as structure 5c. Additionally, multiple structures 5c can be provided at the auxiliary base station described above and arranged at defined intervals within the non-detection zone R1. In this case, even if the length of the second non-detection zone R4, where communication is impossible, is large, information about the target vehicle 100 can be transmitted to base station 7a via wireless communication between the structures 5c.

[0040] As described above, in the vehicle speed monitoring method according to the present invention, information can be received using multi-hop technology even if a target vehicle is outside a communication range.

[0041] Fig. Figure 5 is a flowchart illustrating a vehicle speed monitoring process in the vehicle speed monitoring method according to the present invention. The steps of the vehicle speed monitoring method described above are shown sequentially with reference to Fig. 5 described.

[0042] First, the base station receives information about a target vehicle and calculates a distance. Based on this, it is possible to determine the target vehicle's position. Then, it is determined whether the target vehicle has entered a detection zone.

[0043] At this point in time, because the current time is not a speed monitoring point, since the target vehicle has not entered the investigation area, it is possible to issue a speeding warning to a driver by means of sound, video or the like, if the speeding violation occurs, by determining the presence / absence of the speeding violation.

[0044] Once the target vehicle enters the detection zone, the system first determines whether a speeding violation has occurred and, if so, whether a speeding warning has been issued. If no speeding warning has been issued, it is possible to deliver a speeding warning to the driver via audio and video.

[0045] If the speeding warning has already been issued, the step of taking a picture of the speeding vehicle is carried out because the target vehicle ignored the speeding warning and entered the investigation area at an illegal speed.

[0046] Additionally, previously received information about the vehicle can be stored and sent to another entity, for example a police station, a traffic control center, or an insurance company.

[0047] The process described above is used to monitor vehicle speed.

[0048] The embodiments and accompanying drawings of the present invention have been described simply to illustrate part of the technical spirit of the invention. Accordingly, the embodiments in this description have been described for the purpose of illustrating the technical spirit of the present invention, not for the purpose of limiting it, so that it is obvious to a person skilled in the art that the scope of the technical spirit of the present invention is not limited by the described embodiments. Furthermore, it is self-evident that all modifications and specific embodiments that a person skilled in the art readily understands within the scope of the technical spirit contained in the description and drawings of the present invention are included within the legal scope of the present invention.

Claims

[1] Vehicle speed monitoring procedure comprising the following steps: Receiving and recording, by a base station (7) located in an investigation area (R2), of information about a first vehicle (100) from a communication unit in the first vehicle (100); Determining the speed of the first vehicle (100) using the information gathered about the first vehicle (100); and Identifying the first vehicle (100) as a speeding vehicle if the detected speed of the first vehicle (100) is higher than a reference maximum speed at a time when the first vehicle (100) entered the detection area (R2); wherein, if the first vehicle (100) is outside a communication range of a non-detection area (R1), the receiving and acquiring step further comprises: Receiving information about the first vehicle (100) from a communication unit in a second vehicle (200) located at a communication-capable distance from the first vehicle (100), and Delivering information about the first vehicle (100) to the base station (7). [2] Vehicle speed monitoring method according to claim 1, wherein the step of identifying the first vehicle (100) as a speeding vehicle comprises taking an image of the first vehicle (100) using a photo system (5) provided in the detection area (R2) when the first vehicle (100) has entered the detection area (R2). [3] Vehicle speed monitoring method according to claim 1, further comprising the following step: Issuing a speeding warning to the first vehicle (100) if the speed of the first vehicle (100) is higher than the reference maximum speed, between the step of determining the speed of the first vehicle (100) and the step of identifying the first vehicle (100) as a speeding vehicle. [4] Vehicle speed monitoring method according to claim 1, wherein the step of receiving and acquiring the information about the first vehicle (100) comprises receiving the information about the first vehicle (100) in an auxiliary base station provided in a structure on one side of a road of a non-detection area (R1), and delivering the information to the base station (7) when the first vehicle (100) is outside a communication range of the non-detection area (R1). [5] Vehicle speed monitoring method according to claim 4, wherein a plurality of structures are each provided with the auxiliary base station and are arranged at fixed intervals in the non-detection area (R1). [6] Vehicle speed monitoring method according to claim 1, wherein the step of receiving and acquiring the information about the first vehicle (100) comprises the mutual delivery, by a plurality of second vehicles (200), of the information about the first vehicle (100) successively, and the delivery of the information to the base station (7). [7] Vehicle speed monitoring method according to claim 1, further comprising the following step: Storing the information about the first vehicle (100) after the step of identifying the first vehicle (100) as a speeding vehicle. [8] Vehicle speed monitoring method according to claim 1, further comprising the following step: Sending the information about the first vehicle (100) to another instance after the step of identifying the first vehicle (100) as a speeding vehicle. [9] Vehicle speed monitoring method according to claim 1, wherein the acquisition step comprises receiving and acquiring the information about the first vehicle (100) according to a vehicle wireless communication protocol.

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