CN118072524A - Gear locking method of driving recorder for retaining driving evidence conforming to traffic rules - Google Patents

Abstract

The invention relates to the technical field of image data processing, and provides a shift locking method of a driving recorder, which is suitable for a vehicle and is implemented by the driving recorder, and comprises the following steps of: (A) Determining whether a newly generated film includes a plurality of traffic signals on a longitudinal lane in which the vehicle is traveling; (B) When a plurality of traffic signals are included in the film on a longitudinal lane where the vehicle runs, determining whether a first traffic signal which is relatively nearest to the vehicle and a second traffic signal which is relatively nearest to the vehicle except the first traffic signal are green lights or not according to the film; (C) When the first traffic signal and the second traffic signal are determined to be green lights, determining whether the second traffic signal is red lights before disappearing according to the film; and (D) when the second traffic signal is judged to be red before disappearing, performing a file locking process on the film.

Description

Gear locking method of driving recorder for retaining driving evidence conforming to traffic rules

[ Field of technology ]

The invention relates to the technical field of image data processing, in particular to a gear locking method of a driving recorder for reserving driving evidences meeting traffic rules.

[ Background Art ]

The road junction does not keep clearance, which is often one of main factors causing traffic congestion, a driver often walks to the road junction provided with the traffic signal, the driver enters the road junction and encounters the road condition before the vehicle is congested, and the driver still stops at the road junction after the traffic signal changes to a red light, so that the driver can be prevented from passing through the transverse vehicle.

In order to make passersby become a good habit, police officers often strengthen and ban at the intersection of a stop car, according to the rule of road traffic management punishment, the 58 rd clause 3 prescribes that "go to the intersection with a sign," red lights are not continuously suspended according to lanes, but the paths are inserted between the lanes, so that traffic congestion is caused, other vehicles are blocked, and the punishment of the passersby is more than 600 yuan and less than 1,200 yuan.

Sometimes, a driver enters an intersection when the driver is at a green light, namely, the driver is lifted under the condition that the non-red light is not continuously suspended according to a lane and no violation exists, and if the driver does not take the lifting, the driver needs to check and attach a driving recorder film to a complaint judging center.

However, when the driver receives the issuing ticket, the left-hand movie may be covered by a new movie, failing to complain, or it may take a lot of time to find the left-hand movie.

[ Invention ]

It is therefore an object of the present invention to provide a method for locking a driving recorder to retain evidence of driving compliance with traffic regulations, which can help driving to offer evidence of complaints.

The method for locking the driving recorder for keeping the driving evidence conforming to the traffic rules is suitable for a vehicle, and is implemented by the driving recorder for continuously shooting images outside the vehicle to continuously generate films. In the step (a), the driving recorder determines whether a plurality of traffic signs are included in a newly generated movie on a longitudinal lane where the vehicle is traveling; in the step (B), when it is determined that the film includes a plurality of traffic signals on a longitudinal lane in which the vehicle is traveling, the traffic recorder determines whether a first traffic signal, which is closest to the vehicle, of the traffic signals and a second traffic signal, which is closest to the vehicle, other than the first traffic signal, are green lights according to the film; in the step (C), when it is determined that the first traffic signal and the second traffic signal are both green lights, the driving recorder determines whether the second traffic signal is red lights before disappearing according to the film; in the step (D), when it is determined that the second traffic signal is red before disappearing, the driving recorder performs a lock-in process on the movie.

Preferably, step (B) comprises the sub-steps of: (B-1) obtaining a plurality of signal size information respectively corresponding to the equal traffic signals according to a traffic signal image in which one of the movies includes the equal traffic signals when it is determined that the movie includes a plurality of traffic signals in a longitudinal lane in which the vehicle travels; (B-2) obtaining the first traffic signal whose corresponding signal size information is relatively maximum and the second traffic signal whose corresponding signal size information is relatively maximum except for the signal size information corresponding to the first traffic signal according to the signal size information; and (B-3) determining whether the first traffic signal and the second traffic signal are both green lights.

Preferably, the driving recorder is further configured to continuously obtain the vehicle speed data of the vehicle, and after the step (B), further includes the following steps: (E) When the first traffic signal and the second traffic signal are determined to be green lights, storing signal disappearing vehicle speed data related to the first traffic signal disappearing; after step (D), further comprising the steps of: (F) calculating an intersection length from the film; and (G) judging whether the intersection can reasonably pass or not according to the intersection length and the sign disappearance vehicle speed data.

Preferably, the driving recorder is further communicatively connected to a traffic flow server, and is further configured to continuously obtain a speed of the vehicle and continuously obtain a plurality of traffic flow information from the traffic flow server, and continuously obtain a plurality of geographic positions related to the vehicle, where the driving recorder stores a plurality of historical intersection passing data, each of the historical intersection passing data includes a geographic position a predetermined distance before an intersection, a historical speed of the vehicle at the predetermined distance before the intersection, a historical traffic flow information related to the vehicle passing the intersection, and a flag indicating whether the vehicle has a detained intersection behavior, and the driving recorder further includes the following steps before step (a): (H) Determining whether the vehicle is in front of an intersection by the predetermined distance; (I) When the predetermined distance between the vehicle and the intersection is determined, determining whether the vehicle has a detained intersection behavior according to the passing data of the historical intersections, the target geographic position, a current target vehicle speed and current target traffic flow information; (J) When the vehicle is determined to stay at the intersection, generating a first message related to not suggesting to pass through the intersection; and (K) generating a second message related to the proposed crossing when it is determined that the vehicle will not stop at the crossing.

Preferably, step (I) comprises the sub-steps of: (I-1) when it is determined that the vehicle is distant from the intersection by the predetermined distance, obtaining a plurality of pieces of target historical intersection passing data including the target geographic position and a mark indicating that the vehicle does not have a detained intersection behavior from the equal-history intersection passing data according to the target geographic position; (I-2) obtaining a threshold vehicle speed from said target historic intersections via data;

(I-3) determining whether the target vehicle speed is greater than the threshold vehicle speed; and (I-4) when the target vehicle speed is determined to be greater than the threshold vehicle speed, determining whether the vehicle has a detained intersection behavior according to the target traffic flow information.

Preferably, in sub-step (I-2), the threshold vehicle speed is the lowest historical vehicle speed in the noted historical intersection passing material that includes no detained intersection behavior of the vehicle.

Preferably, each of the traffic information indicates one of a traffic flow unblocked, a traffic flow medium, and a traffic flow blocked, wherein in the substep (I-4), it is determined whether the target traffic information indicates the traffic flow blocked, when it is determined that the target traffic information indicates the traffic flow blocked, it is determined that the vehicle has a detained intersection behavior, when it is determined that the target traffic information indicates the traffic flow unblocked or the traffic flow medium, it is determined that the vehicle does not have a detained intersection behavior.

Preferably, after step (C), the following steps are further included: (L) when it is determined that the second traffic signal is not red before disappearing, generating and storing a history crossing passing data including a vehicle speed related to the predetermined distance of the vehicle before the crossing, and a mark indicating that there is no detained crossing behavior; in the step (D), a history crossing passing data is also generated and stored, where the history crossing passing data includes a vehicle speed of the predetermined distance before the crossing, and a mark indicating a behavior of the detained crossing.

Preferably, step (H) comprises the sub-steps of: (H-1) determining whether a plurality of traffic signals are included in a currently photographed image on a longitudinal lane in which the vehicle is traveling; (H-2) calculating a relative distance between a reference traffic signal of the equal traffic signals and the vehicle according to a size of the image relative to the reference traffic signal nearest to the vehicle when it is determined that the image includes a plurality of traffic signals on a longitudinal lane in which the vehicle is traveling; and (H-3) determining whether the relative distance is equal to the predetermined distance to determine whether the vehicle is the predetermined distance before the intersection.

Preferably, the driving recorder stores a plurality of reference geographic positions related to the predetermined distance before the intersections, wherein in step (H), it is determined whether a currently generated target geographic position matches one of the reference geographic positions to determine whether the vehicle is the predetermined distance before the intersection distance.

Preferably, the driving recorder includes a storage unit having a data-coverable storage area and a data-lock storage area, wherein in step (D), the film is stored in the data-lock storage area.

The invention has the following effects: when the driving recorder determines that the film comprises a plurality of traffic signals, the first traffic signal and the second traffic signal are green lights and red lights before the second traffic signal disappears, the film is subjected to a file locking process to be used as a record of self-protection search warrant.

[ Description of the drawings ]

FIG. 1 is a block diagram illustrating a vehicle event recorder in accordance with one embodiment of a vehicle event recorder lock-up method for preserving evidence of traffic rules in accordance with the present invention;

FIG. 2 is a schematic diagram illustrating a vehicle traveling to an intersection;

FIG. 3 is a flow chart illustrating the embodiment of the method for locking a tachograph for preserving evidence of travel in accordance with traffic regulations of the present invention;

FIG. 4 is a flow chart illustrating a sub-step of step 21 of the embodiment described in conjunction with FIG. 3;

FIG. 5 is a flow chart illustrating the sub-steps of step 22 of the embodiment described in conjunction with FIG. 3; and

Fig. 6 is a flow chart illustrating sub-steps of a step 26 of the embodiment described in connection with fig. 3.

The reference numerals in the figures illustrate: 1. a drive recorder; 11. a storage unit; 12. an image photographing unit; 13. a processing unit; 14. a communication unit; 15. a global positioning system unit; 100. a vehicle; 101. a first traffic sign; 102. a second traffic sign; 103. traffic flow server

[ Detailed description ] of the invention

Before the present invention is described in detail, it should be noted that in the following description, like components are denoted by the same reference numerals.

Referring to FIG. 1, a traffic recorder 1 embodying one embodiment of a traffic recorder lock-up method for preserving evidence of traffic regulations is illustrated. The driving recorder 1 is disposed on a vehicle, and comprises a storage unit 11, an image capturing unit 12, a communication unit 14, a global positioning system (Global Positioning System, GPS) unit 15, and a processing unit 13 electrically connected to the storage unit 11, the image capturing unit 12, the communication unit 14, and the global positioning system unit 15.

The storage unit 11 stores a plurality of history crossing passing data, each history crossing passing data including a geographical position of a predetermined distance before an intersection, a history speed of the vehicle at the predetermined distance before the intersection, a history traffic information related to the vehicle passing the intersection, and a flag indicating whether the vehicle has a detained crossing behavior, the storage unit 11 having a data-coverable storage area, and a data-lock storage area.

The image capturing unit 12 continuously captures images of the outside of the vehicle to continuously generate a film.

The communication unit 14 is communicatively connected to a traffic server 103.

The processing unit 13 continuously obtains a plurality of vehicle speeds of the vehicle, and continuously obtains a plurality of pieces of traffic information from the traffic server 103 via the communication unit 14, and continuously obtains a plurality of geographic positions related to the vehicle via the global positioning system unit 15. It should be noted that, in the present embodiment, the processing unit 13 is electrically connected to the vehicle, and continuously obtains the vehicle speed of the vehicle from an On-board diagnostic system (On-Board Diagnostics) of the vehicle, the traffic server 103 is, for example, a *** map, each traffic information indicates one of a traffic (lane) being clear, a traffic (lane) being in a lane), and a traffic (lane) being blocked, and in other embodiments, the processing unit 13 may calculate the vehicle speed according to the geographic location generated by the global positioning system 15, but is not limited thereto.

It is noted that the traffic server 103 generates the equal traffic information based on, for example, the average speed of all vehicles on the lane, and generates traffic information indicating that the traffic (lane) is blocked, for example, if the average speed of all vehicles on the lane is nearly stationary.

Referring to fig. 1,2, and 3, the embodiment of the method for locking a driving recorder 1 to retain the driving evidence in accordance with the traffic rules is described. The steps involved in the embodiments are described in detail below.

In step 21, the processing unit 13 determines whether the vehicle 100 is ahead of an intersection by the predetermined distance.

Referring to fig. 4, step 21 is further illustrated as including sub-steps 211-214.

In sub-step 211, the processing unit 13 determines whether a plurality of traffic signs are included in a currently photographed image on the longitudinal lane in which the vehicle 100 is traveling. When it is determined that the image includes a plurality of traffic signals on the longitudinal lane in which the vehicle 100 is traveling, the flow proceeds to step 212; when it is determined that the image does not include a plurality of traffic signals on the longitudinal lane in which the vehicle 100 is traveling, the sub-step 211 is repeated.

In sub-step 212, the processing unit 13 calculates a relative distance between the reference traffic signal and the vehicle 100 according to a size of the image of the reference traffic signal that is closest to the vehicle 100 among the traffic signals.

It should be noted that, since the traffic signal has a standard size, the processing unit 13 can calculate the relative distance according to the correlation between the distance between the traffic signal and the vehicle and the size of the traffic signal according to the size of the image of the reference traffic signal, and in detail, the traffic signal is limited in type, the size and size of the traffic signal are also fixed and standardized, the traffic signals are actually photographed at different distances through the lens and compared with the image proportion or the pixel change in the image, and a distance comparison table or a database can be formed by sorting, so that the processing unit 13 can know the current distance between the vehicle and the traffic light, i.e. the relative distance according to a table look-up mode.

In sub-step 213, the processing unit 13 determines whether the relative distance is equal to the predetermined distance to determine whether the vehicle 100 is the predetermined distance before the intersection. Wherein when the processing unit 13 determines that the relative distance is equal to the predetermined distance, that is, determines the predetermined distance before the intersection of the vehicle 100, the flow proceeds to step 22; and when the processing unit 13 determines that the relative distance is not equal to the predetermined distance, that is, determines that the vehicle 100 is not the predetermined distance before the intersection, the sub-step 211 is repeated.

It should be noted that, in the present embodiment, the distance between the vehicle 100 and the intersection is the relative distance between the reference traffic sign and the vehicle 100, and in other embodiments, the distance may be the relative distance of other references, or a defined absolute distance, for example, the storage unit 11 of the driving recorder 1 further stores a plurality of reference geographic positions related to the predetermined distance before the intersection, and the processing unit 13 determines whether a current target geographic position matches one of the reference geographic positions to determine whether the vehicle 100 matches the predetermined distance before the intersection, where the predetermined distance before the intersection is determined by the processing unit 13 when the target vehicle coordinate position matches one of the reference coordinate positions, but is not limited to this.

In step 22, the processing unit 13 determines whether the vehicle 100 has a detained intersection behavior according to the historical intersection passing data, the target geographic location, a current target vehicle speed, and a current target traffic information. When the processing unit 13 determines that the vehicle 100 has a detained intersection behavior, the flow proceeds to step 23; when the processing unit 13 determines that the vehicle 100 does not have a detained intersection behavior, the flow proceeds to step 24.

Referring to FIG. 5, the sub-step 22 further includes steps 221-224.

In sub-step 221, the processing unit 13 obtains a plurality of pieces of target historical intersection passing data including the target geographic location and a label indicating that the vehicle 100 has no detained intersection behavior from the equal-history intersection passing data according to the target geographic location.

In sub-step 222, the processing unit 13 obtains a threshold vehicle speed according to the target history crossing passing data.

It should be noted that, in the present embodiment, the threshold vehicle speed is the lowest historical vehicle speed in the marked historical intersection passing data including the behavior indicating that the vehicle does not have the detained intersection, but is not limited thereto.

In sub-step 223, the processing unit 13 determines whether the target vehicle speed is greater than the threshold vehicle speed. When the processing unit 13 determines that the target vehicle speed is greater than the threshold vehicle speed, the flow proceeds to sub-step 224; when the processing unit 13 determines that the target vehicle speed is not greater than the threshold vehicle speed, the processing unit 13 determines that the vehicle 100 has a stop intersection behavior, and the flow proceeds to step 23.

In sub-step 224, the processing unit 13 determines whether the vehicle 100 has a detained intersection behavior based on the target traffic information. When the processing unit 13 determines that the vehicle 100 has a detained intersection behavior, the flow proceeds to step 23; when the processing unit 13 determines that the vehicle 100 does not have a detained intersection behavior, the flow proceeds to step 24.

In this embodiment, in the substep 224, the processing unit 13 determines whether the target traffic information indicates the traffic jam, and when it is determined that the target traffic information indicates the traffic jam, the processing unit 13 determines that the vehicle 100 has a crossroad-retention behavior; when it is determined that the target traffic information indicates that the traffic is clear or that the traffic is medium, the processing unit 13 determines that the vehicle 100 does not have a traffic jam, but is not limited thereto.

For example, the processing unit 13 selects the lowest speed as the threshold speed from the passing data of the equal target historic intersections where the vehicle 100 has previously driven a plurality of times through the intersection and no detained intersection is behaved, the predetermined distance is for example 10 meters, the threshold speed is for example 20 km per hour, which means that the vehicle can smoothly pass at least at a speed of 20 km per hour at a place of 10 meters before the intersection, so that the vehicle 100 can detain if the target speed is not more than 20 km per hour at 10 meters before the intersection; otherwise, if the target vehicle speed is greater than 20 km per hour, the processing unit 13 will reconfirm whether the target traffic information indicates that the traffic jam is indicated, and if the target traffic information indicates that the traffic jam is indicated, the processing unit 13 determines that the vehicle 100 has a crossroad-retention behavior.

It should be noted that, in other embodiments, the driving recorder 1 may not include the communication unit 14, the processing unit 13 may generate a traffic information according to a current image captured at present and a previous image captured at a previous time, for example, the processing unit 13 determines that there are a plurality of stationary vehicles in front of the lane according to the displacement of all vehicles in the current image and the previous image, the stationary vehicles account for 50 percent of all vehicles in the lane in the current image, and the threshold of blocking is 60 percent, and the threshold of blocking is 40 percent, so as to generate a traffic information indicating a medium traffic (lane). The method comprises the steps of determining whether the front vehicle is stationary or not, performing object recognition on the image through the symmetrical appearance of the vehicle tail, and determining whether the object generates a moving track by means of object tracking and the like.

In step 23, the processing unit 13 generates a first message related to not suggesting to pass through the intersection.

In step 24, the processing unit 13 generates a second message related to the proposed crossing.

It should be noted that the driving recorder 1 may prompt the first message or the second message in text or voice mode, but not limited to this.

In step 25, the processing unit 13 determines whether a plurality of traffic signs are included in the longitudinal lane in which the vehicle 100 is traveling in the newly generated movie. When the processing unit 13 determines that the movie includes a plurality of traffic signals on the longitudinal lane in which the vehicle 100 travels, the flow proceeds to step 26; and when the processing unit 13 determines that the film does not include a plurality of traffic signals on the longitudinal lane in which the vehicle 100 is traveling, step 25 is repeated.

It should be noted that, in the present embodiment, the processing unit 13 determines whether the traffic sign is on the longitudinal lane where the vehicle 100 is traveling according to the direction of the road surface, the words, the numerals, and the head of other vehicles, but not limited thereto.

In step 26, the processing unit 13 determines whether a first traffic sign 101, which is relatively closest to the vehicle 100, and a second traffic sign 102, which is relatively closest to the vehicle 100 except the first traffic sign 101, of the equal traffic signs in the movie are all green lights. When the processing unit 13 determines that the first traffic signal 101 and the second traffic signal 102 are both green, the flow proceeds to step 27; and when the processing unit 13 determines that one of the first traffic signal 101 and the second traffic signal 102 is not green, repeating step 25.

It should be noted that, in the present embodiment, the processing unit 13 determines whether the first traffic sign 101 and the second traffic sign 102 are green or not according to the image of the first occurrence of the traffic signs in the film, but not limited thereto.

Referring to FIG. 6, the sub-step 26 is further illustrated as including steps 261-263.

In sub-step 261, the processing unit 13 obtains a plurality of signal size information corresponding to the equal traffic signals respectively according to the traffic signal images of one of the films including the equal traffic signals.

It should be noted that, in the present embodiment, the processing unit 13 obtains the equal sign size information, and each sign size information includes an area of the corresponding traffic sign in the traffic sign image, and in other embodiments, each sign size information includes a number of pixels included in the corresponding traffic sign image, but not limited thereto.

In sub-step 262, the processing unit 13 obtains the first traffic sign 101 with the corresponding sign size information being the relatively largest and the second traffic sign 102 with the corresponding sign size information being the relatively largest except for the sign size information corresponding to the first traffic sign 101 according to the sign size information.

In sub-step 263, the processing unit 13 determines whether the first traffic signal 101 and the second traffic signal 102 of the traffic signals are both green lights.

In step 27, the processing unit 13 stores a signal disappearing vehicle speed data related to the first traffic signal 101 disappearing from the view of the image capturing unit 12 into the storage unit 11.

It should be noted that, in other embodiments, the driving recorder may further include a sensing unit electrically connected to the processing unit 13, and the sensing unit is configured to continuously sense the speed of other vehicles nearby the vehicle 100, and each of the speed data further includes at least one speed related to the other vehicles and at least one acceleration related to the other vehicles, that is, the signal disappearing speed data further includes at least one speed related to the other vehicles and at least one acceleration related to the other vehicles when the first traffic signal 101 disappears, but not limited thereto.

In step 28, the processing unit 13 determines whether the second traffic sign 102 in the movie is red or not before the second traffic sign disappears in the field of view of the image capturing unit 12. When the processing unit 13 determines that the second traffic signal 102 is not red before disappearing, the flow proceeds to step 29; and when the processing unit 13 determines that the second traffic sign 102 is red before disappearing, it indicates that the vehicle 100 has an event of staying at the intersection, the flow proceeds to step 30.

In step 29, the processing unit 13 generates and stores a history of crossing passing data including a vehicle speed related to the predetermined distance before the crossing of the vehicle 100 and a flag indicating no behavior of the detained crossing, to the storage unit 11, and repeats step 21.

In step 30, the processing unit 13 performs a gear locking process on the film, and generates and stores a history of crossing passing data to the storage unit 11, wherein the history of crossing passing data includes a vehicle speed related to the predetermined distance of the vehicle 100 before the crossing, and a mark indicating a behavior of a detained crossing.

It should be noted that, in the present embodiment, the processing unit 13 stores the film in the data lock storage area of the storage unit 11 for performing a lock processing, but not limited thereto.

In step 31, the processing unit 13 calculates an intersection length according to the film.

It should be noted that, in the present embodiment, the processing unit 13 calculates a first relative distance between the vehicle 100 and the first traffic signal according to the size of the image of the first traffic signal 101, calculates a second relative distance between the vehicle 100 and the second traffic signal according to the size of the image of the second traffic signal 102, subtracts the first relative distance from the second relative distance to obtain the intersection length, for example, the processing unit 13 calculates a first pixel between the vehicle 100 and the first traffic signal 101 at an X-meter, the first pixel is 243302, the total pixel of 2K pixels is 2048×1080= 2211840, the first pixel occupies a total pixel ratio of 11%, the processing unit 13 calculates a second pixel between the vehicle 100 and the second traffic signal 101 at a distance of 5 meters, and the first pixel is not estimated to be a total pixel of the vehicle 101 but the second pixel is a total pixel of the second pixel of the vehicle 100, the first pixel is 5322, and the second pixel is not estimated to be a total pixel of the vehicle 101, and the total pixel is not estimated to be a total pixel of the second pixel of the vehicle 101.

In other embodiments, the storage unit 11 further stores map information, since the government has defined lane widths and lanes of different properties have different width definitions, the processing unit 13 may obtain the attribute of each road (e.g. urban road) according to the map information, the attribute may correspond to the corresponding road width, that is, the processing unit 13 obtains the even road attribute/few lanes of a transverse lane perpendicular to a longitudinal lane on which the vehicle 100 travels according to the map information, so as to calculate the width of the transverse lane, for example, the processing unit 13 obtains the width of the vehicle 100 on the arisen south road according to the map information, by using loyalty and filial piety east road 4 perpendicular to the arisen south road, and loyalty and filial piety east road is classified as a major road and a minor road in the urban road, which is not less than 3 metric as specified, if the image is photographed to loyalty and filial piety east road 4 unilaterally have 4 lanes, the length of the intersection is calculated by the processing unit 13 to be approximately 6+6 metric, wherein the width of the intersection is estimated to be not to be 6+30 metric.

In step 32, the processing unit 13 calculates whether the vehicle can reasonably pass through the intersection according to the intersection length and the sign disappearance vehicle speed data, and repeats step 21. If the user can reasonably pass through the intersection, the user can claim the legality of driving.

It should be noted that, in this embodiment, the processing unit 13 of the driving recorder 1 calculates a passing time interval related to the passing crossing according to the crossing length and the sign disappearing vehicle speed data, determines whether the passing time interval is greater than a preset time interval to determine whether the passing crossing can be reasonably passed, where the preset time interval is, for example, a time interval of average passing crossing plus a buffering time, and in other embodiments, a user can download the film from the driving recorder 1 by means of an action application program (app) related to the driving recorder 1 on an intelligent device and calculate the crossing length and determine whether the passing crossing can be reasonably passed, that is, steps 31 and 32 are not included, and step 21 is repeated after step 30, but not limited thereto.

In summary, in the method of the present invention, when the processing unit 13 determines that the vehicle 100 is at the predetermined distance before the intersection and the vehicle 100 has the behavior of the intersection, the second message that is not recommended to pass through the intersection is generated to reduce the risk of the behavior of the intersection, and when it is determined that the film includes a plurality of traffic signs, the first traffic sign and the second traffic sign on the longitudinal lane where the vehicle is traveling, and the second traffic sign is green, and the second traffic sign is red before disappearing, the film is subjected to a gear locking process as a record of self-protection search warrant, so that the purpose of the present invention can be achieved.

However, the foregoing is only illustrative of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims and their equivalents.

Claims (11)

1. A method for locking a traffic recorder for retaining evidence of traffic regulations, which is suitable for a vehicle, and is implemented by a traffic recorder for continuously capturing images of the outside of the vehicle to continuously generate movies, the method comprising the steps of:

(A) Determining whether a newly generated movie includes a plurality of traffic numbers 5FD7 on a longitudinal lane in which the vehicle is traveling;

(B) When a plurality of traffic signals are included in the film on a longitudinal lane where the vehicle runs, determining whether a first traffic signal which is relatively nearest to the vehicle and a second traffic signal which is relatively nearest to the vehicle except the first traffic signal are green lights or not according to the film;

(C) When the first traffic signal and the second traffic signal are determined to be green lights, determining whether the second traffic signal is red lights before disappearing according to the film; and

(D) And when the second traffic sign is judged to be red before disappearing, the film is subjected to a file locking process.

2. The method of claim 1, wherein step (B) comprises the sub-steps of:

(B-1) obtaining a plurality of signal size information respectively corresponding to the equal traffic signals according to a traffic signal image in which one of the movies includes the equal traffic signals when it is determined that the movie includes a plurality of traffic signals in a longitudinal lane in which the vehicle travels;

(B-2) obtaining the first traffic signal whose corresponding signal size information is relatively maximum and the second traffic signal whose corresponding signal size information is relatively maximum except for the signal size information corresponding to the first traffic signal according to the signal size information; and

(B-3) determining whether the first traffic signal and the second traffic signal are both green lights.

3. The method for locking a drive recorder for preserving evidence of regular traffic according to claim 1, wherein said drive recorder is further adapted to continuously obtain speed data of said vehicle, further comprising the steps of, after step (B):

(E) When the first traffic signal and the second traffic signal are determined to be green lights, storing signal disappearing vehicle speed data related to the first traffic signal disappearing;

After step (D), further comprising the steps of:

(F) Calculating the length of an intersection according to the film; and

(G) Judging whether the intersection can reasonably pass through according to the intersection length and the sign disappearance vehicle speed data.

4. The method of claim 1, wherein the vehicle recorder is further communicatively connected to a traffic flow server, the vehicle recorder is further configured to continuously obtain the speed of the vehicle and continuously obtain a plurality of traffic flow information from the traffic flow server and continuously obtain a plurality of geographic locations associated with the vehicle, the vehicle recorder stores a plurality of historical intersection passing data, each of the historical intersection passing data including a geographic location a predetermined distance before an intersection, a historical speed of the vehicle at the predetermined distance before the intersection, a historical traffic flow information associated with the vehicle passing the intersection, and a label indicating whether the vehicle has a detained intersection behavior, the method further comprising the steps of, prior to step (a):

(H) Determining whether the vehicle is in front of an intersection by the predetermined distance;

(I) When the predetermined distance between the vehicle and the intersection is determined, determining whether the vehicle has a detained intersection behavior according to the passing data of the historical intersections, the target geographic position, a current target vehicle speed and current target traffic flow information;

(J) When the vehicle is determined to stay at the intersection, generating a first message related to not suggesting to pass through the intersection; and

(K) When it is determined that the vehicle will not stay at the intersection, a second message is generated relating to the proposed intersection.

5. The method for locking a drive recorder for preserving evidence of regular traffic according to claim 4, wherein step (I) comprises the sub-steps of:

(I-1) when it is determined that the vehicle is distant from the intersection by the predetermined distance, obtaining a plurality of pieces of target historical intersection passing data including the target geographic position and a mark indicating that the vehicle does not have a detained intersection behavior from the equal-history intersection passing data according to the target geographic position;

(I-2) obtaining a threshold vehicle speed from said target historic intersections via data;

(I-3) determining whether the target vehicle speed is greater than the threshold vehicle speed; and

(I-4) when it is determined that the target vehicle speed is greater than the threshold vehicle speed, determining whether the vehicle has a detained intersection behavior based on the target traffic flow information.

6. The method of claim 5, wherein in substep (I-2), the threshold vehicle speed is the lowest historical vehicle speed in the noted historical intersection passing data that includes no detained intersection behavior of the vehicle.

7. The method according to claim 5, wherein each traffic information indicates one of a traffic unblocked, a traffic medium, and a traffic blocked, wherein in the substep (I-4), it is determined whether the target traffic information indicates the traffic blocked, it is determined that the vehicle has a blocking intersection behavior when it is determined that the target traffic information indicates the traffic blocked, and it is determined that the vehicle does not have a blocking intersection behavior when it is determined that the target traffic information indicates the traffic unblocked or the traffic blocked, etc.

8. The method for locking a drive recorder for preserving evidence of regular traffic according to claim 4, further comprising the steps of, after step (C):

(L) when it is determined that the second traffic signal is not red before disappearing, generating and storing a history crossing passing data including a vehicle speed related to the predetermined distance of the vehicle before the crossing, and a mark indicating that there is no detained crossing behavior;

In the step (D), a history crossing passing data is also generated and stored, where the history crossing passing data includes a vehicle speed of the predetermined distance before the crossing, and a mark indicating a behavior of the detained crossing.

9. The method for locking a drive recorder for preserving evidence of regular traffic as claimed in claim 4, wherein step (H) comprises the sub-steps of:

(H-1) determining whether a plurality of traffic signals are included in a currently photographed image on a longitudinal lane in which the vehicle is traveling;

(H-2) calculating a relative distance between a reference traffic signal of the equal traffic signals and the vehicle according to a size of the image relative to the reference traffic signal nearest to the vehicle when it is determined that the image includes a plurality of traffic signals on a longitudinal lane in which the vehicle is traveling; and

(H-3) determining whether the relative distance is equal to the predetermined distance to determine whether the vehicle is the predetermined distance before the intersection.

10. The method of claim 4, wherein the vehicle recorder stores a plurality of reference geographic locations associated with the predetermined distance before the plurality of intersections, wherein in step (H) it is determined whether a currently generated target geographic location matches one of the reference geographic locations to determine whether the vehicle is the predetermined distance before the intersection distance.

11. The method of claim 1, wherein the driving recorder includes a storage unit having a data-overrideable storage area and a data-locking storage area, and wherein in step (D), the film is stored in the data-locking storage area.