TWI590207B - Driving Recorder with Driving Behavior Scoring Function and Scoring Method - Google Patents

Description

Driving recorder with driving behavior scoring function and its scoring method

The invention relates to a driving recorder, in particular to a driving recorder with a driving behavior record and a scoring method.

Since the bicycle recorder product has been in the market, it has been widely used by the public for road records when driving on general roads. More importantly, when traffic accidents occur, it can provide objective facts, and the shooting picture of the traffic recorder is restored as an accident scene. According to the resolution of the time, location and driving route of the vehicle, the appraisers are encouraged to judge the cause and responsibility of the actual accident, and then help to clarify the liability of the accident and reduce the inconvenience of using the passerby in the event of a traffic accident.

However, the main function of the driving recorder is to provide shooting and recording of driving conditions. It is a passive self-protection scheme, which is virtually impossible to achieve the effect of actively reducing the incidence of traffic accidents.

Because the habits of ordinary people are very different, and the cause of traffic accidents comes from the traffic rules, especially on the roads with a large number of vehicles in parallel, and there are also locomotives, cars, buses, light rails, etc. Passers-by keep the road safety by obeying the traffic rules, and only by using police officers to conduct irregularities, in addition to spending a lot of police power, passers-by are still prone to be lucky and ignore the safety of others, resulting in no improvement in traffic safety. The situation.

In addition, the speed state of the car itself is an important measure when the system scores the driving behavior. The speed of the general system is taken from GPS or OBD (On-Board Diagnostics). Body signal, however, systems such as OBD that are used to monitor the state of the vehicle in the vehicle must cooperate with the electrical connection of the hardware circuit to obtain signals of the vehicle components, such as throttle, steering wheel, speed, and brakes. It takes a certain amount of time to connect to the hardware device when installing the system.

In order to solve the above problems, the present invention provides a driving recorder with a driving behavior scoring function, comprising a map database, which stores a map data and map location information corresponding to one map data; a satellite positioning unit is obtained correspondingly a location information of the vehicle on the map data; an image capture unit that obtains a continuous image of the front of the vehicle; a gravity sensing unit for sensing the movement of the vehicle to generate a gravity sensing value An operation processing unit electrically connected to the map database, the satellite positioning unit, the image capturing unit and the gravity sensing unit, and using the position information, the continuous image and the gravity sensing value and the The map location information is compared to determine whether the vehicle travels according to the road rule of the map location information, and calculates a driving behavior score according to the judgment result.

The present invention further provides a driving behavior scoring method, the method comprising: storing a map data and a map location information corresponding to the map data by using a map database; and obtaining a corresponding vehicle on the map data by using a satellite positioning unit Position information; using an image capturing unit to obtain a continuous image of the front of the vehicle; sensing the movement of the vehicle by a gravity sensing unit to generate a gravity sensing value; using an operation processing unit to determine the position information, the The continuous image and the gravity sensing value are compared with the map location information to determine whether the vehicle travels according to the road rule of the map location information, and calculate a driving behavior score according to the determination result.

In order to reduce the dependence of the driving scoring system on hardware devices, the present invention cites a novel image analysis technology, which uses the image captured by the camera to determine whether the current body itself is in a moving state, replacing the hardware requirements of the conventional GPS or OBD. That is to say, the present invention is a third-party software and hardware, and can be operated without integration with the vehicle body, and is easy to install and disassemble. In the scoring, the continuous behavior and historical behavior of the driving are included in the reference, such as continuous switching lanes (snakes) and the behavior of being too close to the car, especially selected as the basis for scoring; considering the driving habits of driving to the present, waiting for red At the time of the lamp, the problem of not changing the number, the vehicle in front has left, and the problem of not following the traffic flow, are also listed one by one, so that driving can gradually improve the bad driving habits during the driving process using the invention. Proactively improve the safety of the car, thereby improving the overall traffic safety quality.

100‧‧‧ Driving recorder

110‧‧‧Map database

120‧‧‧Satellite positioning unit

130‧‧‧Image capture unit

140‧‧‧Gravity sensing unit

150‧‧‧Operation Processing Unit

160‧‧‧storage unit

170‧‧‧ display unit

180‧‧‧Voice playback unit

200‧‧‧ screen

210‧‧‧Road rules content

220‧‧‧ Horn

230‧‧‧speed status

240‧‧‧ warning signs

250‧‧‧ Distance status

270‧‧‧ Rating status

290‧‧‧Continuous imagery

1 is a block diagram of an element according to the present invention; 2 is an embodiment of a driving recorder according to the present invention; and FIG. 3 is an embodiment of a driving recorder according to the present invention.

In order to make the invention easier to understand, the following examples are presented to illustrate the invention in detail.

Referring to FIG. 1 to FIG. 3, FIG. 1 is a block diagram of a component of a vehicle recorder 100, including a map database 110, a satellite positioning unit 120, and an image capturing unit 130. A gravity sensing unit 140, an arithmetic processing unit 150, a storage unit 160, a display unit 170, and a voice playback unit 180.

2 is an embodiment of a driving recorder according to the present invention, comprising: a screen 200, a road rule content 210, a horn 220, a vehicle speed state 230, a distance state 250, a score state 270, and a continuous image 290.

3 is an embodiment of a driving recorder according to the present invention, comprising: a screen 200, a horn 220, and a warning sign 240.

The driving recorder 100 is disposed at any position of the vehicle, and the image capturing unit 130 is disposed toward the front of the vehicle to obtain an image of the front of the vehicle, for example, a vehicle in front, a change in sign, a change in scenery, a pedestrian or an item, and the like.

The map database 110 stores one map information and one map location information corresponding to the map data, wherein the map information may include: county towns and towns, terrain height, etc., and the map location information may include: location, coordinates, latitude, road, road rules ...etc., where the road rules may include: maximum speed limit, minimum speed limit, direction of travel, etc., automatically switched and applied according to the official regulations of the country.

The satellite positioning unit 120 obtains the location information of the corresponding vehicle, and the map location information is compared with the location information to search for the map information corresponding to the location information, for example, the vehicle equipped with the driving recorder of the present invention during the driving process, the satellite positioning unit 120 The location of the vehicle obtained through the map database 110 is located at one of the northern coastal roads in the Wanli District of New Taipei City, and then the location information of the map corresponding to the location is 2 lines, the maximum speed limit is 70km/hr, and the minimum speed limit is 40km/hr, and displayed on the display unit 170, as shown in FIG. 2, the road speed content 210 of the screen 200 respectively shows a speed limit of 70km/hr and the vehicle speed state 230 shows that the current vehicle speed is 70km/hr.

The image capturing unit 130 continuously obtains a continuous image of the front of the vehicle during the running of the vehicle, and compares the size of the continuous image by the arithmetic processing unit 150 to obtain a distance change between the vehicle and the preceding vehicle, pedestrian or article, as shown in FIG. 2 . As shown, the distance state 250 of the screen 200 indicates that the distance to the vehicle in front is currently 7 meters.

The continuous image can also be used to analyze the vehicle's offset in the lane, thereby knowing whether the vehicle continuously switches lanes and causing dangerous behavior.

The gravity sensing unit 140 is configured to sense a moving state of the vehicle in which the driving recorder of the present invention is installed to generate a gravity sensing value, where the gravity sensing value includes a direction and a speed of the vehicle, which is obtained by the image capturing unit 130. The continuous images are collectively used to calculate data such as the moving state, direction, and distance from the vehicle in front of the vehicle to improve the degree of control over the movement of the vehicle in which the present invention is installed.

The operation processing unit 150 is electrically connected to the map database 110, the satellite positioning unit 120, the image capturing unit 130, and the gravity sensing unit 140, and cooperates with the location information provided by the satellite positioning unit 120 and the map database 110 to match the map location information and the image. The continuous image provided by the capture unit 130 and the gravity sensing value obtained by the gravity sensing unit 140 are used as a whole score calculation to detect and analyze the driving behavior, and calculate a driving behavior score data.

The continuous image can be used alone to calculate various distance changes, such as the distance of the preceding vehicle, the lane offset, etc., and can also be used together with the gravity sensing value to calculate the moving state of the vehicle, or can be combined with the satellite positioning unit 120 to obtain the location of the vehicle. The corresponding road rules on the map, and accordingly determine whether the vehicle is traveling according to the traffic number.

The storage unit 160 is configured to store the location information and the map location information acquired by the map database 110 corresponding to the satellite positioning unit 120, the continuous image captured by the image capturing unit 130, and the gravity sensing value generated by the gravity sensing unit 140. And the result calculated by the operation processing unit 150 according to the foregoing information, that is, the driving behavior score, and displayed on the display unit 170, as shown in FIG. 2, displaying the current accumulated driving behavior score of 75 points on the rating state 270. .

The storage unit 160 also stores time stamps and continuous images at the same time, so that the user can view different driving events according to time.

The display unit 170 is configured to display the currently obtained data, including continuous images, At present, the speed of the vehicle, the current speed limit, the current rating, and the like, as shown in FIG. 2, the vehicle speed state 230, the distance state 250, the score state 270, the continuous image 290, and the warning sign 240 as shown in FIG. In addition to adjusting the information to be displayed, in addition, when an event occurs during driving, different messages may be displayed depending on the type of event, such as a warning sign, a reminder content, or a driving record screen.

The voice playback unit 180 is configured to play the corresponding prompt audio according to the data calculated by the operation processing unit 150 and the current driving event. For example, when the distance between the vehicle and the preceding vehicle of the present invention is less than a safe distance, the content of the voice prompt is "Danger, please keep a safe distance" and so on.

According to an embodiment of the driving recorder of the present invention, for example, driving a vehicle to a section of Hankou Street, Taipei City, which is a one-way street from west to east, and the maximum speed limit in the urban area is 40 km/hr, so if driving on the road When the driving speed exceeds 40 km/hr or the driving direction thereof does not meet the requirements, the arithmetic processing unit 150 of the present invention will know the position and speed of the vehicle according to the corresponding position of the vehicle acquired by the satellite positioning unit 120 in the map database 110, and then When the vehicle travels to know the direction of travel of the vehicle, if the speed or direction of travel does not conform to the road rules of the road section, for example, the travel speed is 60 km/hr or the travel direction is from east to west, a warning will be displayed through the display unit 170. The flag 240 and the warning content "over the maximum speed limit" or "please follow the driving direction" and the prompt information of the above warning content are played by the voice playback unit 180.

In addition to the driving behavior recorded and analyzed by the driving recorder of the present invention and the corresponding reminding function during the driving of the above-mentioned user, the driver is prompted to modify the driving behavior, and at the same time, the event is given when the driving process occurs. Corresponding scoring, for example, when the continuous image captured by the image measuring and extracting unit 130 analyzes that the vehicle driven by the user does not maintain a safe distance from the preceding vehicle, the total score is adjusted, wherein the adjustment method can be performed by The score is divided by the average of the scores or the continuous scores. The former is given a score plus or minus for the current score when the event occurs. For example, the original score is 80 points. If the safety distance is not maintained, the score must be reduced by 5 points. Therefore, the current score is changed to 75 points. The latter is averaged by the individual scores of the events that occurred, such as 80 points, 40 points for unsafe distances, 60 points for the average of the two, or the entire segment. The events of the process are averaged again, and so on.

The reminding function provided by the driving recorder of the present invention can reach the reminder In compliance with the traffic rules, users gradually improve the original bad driving habits during use, which in turn leads to a substantial increase in the overall road traffic environment and reduces the incidence of traffic accidents.

While the present invention has been described above in the foregoing embodiments, the present invention is not intended to limit the invention, and the equivalents of the modifications and retouchings are still in the present invention without departing from the spirit and scope of the invention. Within the scope of patent protection.

200‧‧‧ screen

210‧‧‧Road rules content

220‧‧‧ Horn

230‧‧‧speed status

250‧‧‧ Distance status

270‧‧‧ Rating status

290‧‧‧Continuous imagery

Claims (10)

A driving recorder having a driving behavior scoring function, configured in a vehicle, comprising: a map database, storing a map data and map location information corresponding to one map information, wherein the map location information includes a location, a standard, a latitude, a road and a road rule, and the road rule includes a maximum speed limit, a minimum speed limit, and a direction of travel; a satellite positioning unit obtains a position corresponding to the vehicle on the map material Information; an image capturing unit obtains a continuous image of the front of the vehicle, wherein the continuous image includes a traffic sign; a gravity sensing unit is configured to sense the movement of the vehicle to generate a gravity sensing value An operation processing unit electrically connected to the map database, the satellite positioning unit, the image capturing unit and the gravity sensing unit, and using the position information, the continuous image and the gravity sensing value and the The map location information is compared to determine whether the vehicle is traveling according to the road rules of the map location information and the traffic sign. Calculate a score based on the judgment result of driving behavior. A driving recorder having a driving behavior scoring function according to claim 1, wherein the arithmetic processing unit further uses the continuous image to calculate a distance between the vehicle and another vehicle. The driving recorder having the driving behavior scoring function according to claim 1, wherein the operation processing unit further uses the continuous image or combines the continuous image and the gravity sensing value to calculate the deviation of the vehicle in the lane. . The driving recorder having the driving behavior scoring function according to claim 1 further includes a storage unit for storing the position information, the continuous image, the gravity sensing value, and the driving behavior calculated by using the driving behavior. score. The driving recorder having the driving behavior scoring function according to claim 1 further includes a display unit for displaying a prompt message and the driving behavior score, and a voice playing unit for playing a warning message. A driving behavior scoring method, which is applicable to a row of vehicle recorders, comprising: using a map database to store a map data and a map position corresponding to the map data Information, wherein the map location information includes a location, a landmark, a latitude, a road, and a road rule, and the road rule includes a maximum speed limit, a minimum speed limit, and a direction of travel; The unit obtains a position information corresponding to the vehicle on the map data; and obtains a continuous image of the front of the vehicle by using an image capturing unit, wherein the continuous image includes a traffic sign; and the vehicle is sensed by a gravity sensing unit Moving to generate a gravity sensing value; using an operation processing unit to compare the position information, the continuous image, and the gravity sensing value with the map position information to determine whether the vehicle follows the road location information The rules and the traffic sign drive, and calculate a driving behavior score based on the judgment result. The driving behavior scoring method according to claim 6, wherein the arithmetic processing unit further uses the continuous image to calculate a distance between the vehicle and another vehicle. The driving behavior scoring method according to claim 6, wherein the operation processing unit further uses the continuous image or the continuous image and the gravity sensing value to calculate an offset of the vehicle in the lane. The driving behavior scoring method of claim 6, further comprising storing the location information, the continuous image, the gravity sensing value, and the driving behavior score calculated according to the rating in a storage unit. The driving behavior scoring method described in claim 6 further includes displaying a prompt message and the driving behavior score in a display unit, and playing a warning audio through a voice playing unit.