KR102507904B1 - Real-time detection of potholes using police cars - Google Patents

Abstract

Road surfaces are damaged due to the increase in heavy vehicles and the rapidly changing climate, resulting in various accidents and driver inconvenience. In particular, there is a need to minimize vibration in transport vehicles such as fracture patients, but conventional methods for providing road surface information have limitations.
An object of the present invention is to provide information on an apparatus and method for efficiently providing road surface information in real time while being economical and easily installable in a vehicle.
A method for detecting potholes in real time using a police car according to the present invention includes the step of generating road surface information by photographing the rear of a police car moving by a road surface management server, and providing the generated road surface information according to the movement path of a user terminal. and the step of generating the road surface information further includes providing a shooting reference value, so that the criterion for photographing the rear is determined by a signal provided in the providing shooting reference value.

Description

Real-time detection of potholes using police cars}

The present invention relates to a method for detecting potholes in real time using a police car.

Due to the increase in heavy vehicles and the rapidly changing climate, road surfaces are damaged, resulting in various accidents and driver inconvenience.

During the thawing period and the rainy season, potholes in which puddles are generated on the pavement surface cause road traffic accidents, and socio-economic damages caused by this are increasing. According to data submitted by the Land, Infrastructure and Transport Committee for the 2013 parliamentary audit, it was reported that the number of potholes on general national roads increased by more than 50% from 25,000 in 2009 to 38,000 in 2012.

In particular, there is a need to minimize vibration in transport vehicles such as fracture patients, but conventional methods for providing road surface information have limitations.

For the above reasons, there is a need for a system and method capable of providing road surface information effectively, economically, and easily installed in a vehicle, and providing abnormal road surface information in real time. The present invention relates to an apparatus and method for providing road surface information, and more particularly, to an apparatus and method for providing road surface information, a method for providing road surface information to a patient transport vehicle, and a recording medium having a computer-readable program recorded thereon.

The background technology of the present invention is disclosed in Republic of Korea Patent Publication No. 10-2013-0062034 (2013.06.12).

The present invention provides information on a method and apparatus for providing road surface information.

Another object of the present invention is to provide information on a road surface information providing device that is economical and can be easily installed in a vehicle.

Another object of the present invention is to enable safe driving by providing a method for providing road surface information with high reliability.

Another object of the present invention is to provide road surface information to a patient transport vehicle that needs to avoid impact so that it can drive on the road more safely.

The objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood from the description below.

In the real-time porthole detection method using a police car according to the present invention, the road surface management server photographs the rear of the police car to generate road surface information, and provides the road surface information generated according to the movement path of the user terminal. and the step of generating the road surface information further includes providing a photographing reference value, so that the reference for photographing the rear is determined by a signal provided in the photographing reference value providing step.

The present invention has been made to solve the problems of the prior art as described above, and has the advantage of providing information on a method and device for providing road surface information, and providing an economical and easily installable device and method in a vehicle. there is.

In addition, there is an advantage in enabling safer driving by providing a method for providing road surface information with high reliability.

In addition, there is an advantage in that the patient can be transported more safely by providing road surface information to a patient transport vehicle that needs to avoid impact.

1 is a block diagram illustrating an apparatus for providing road surface information according to an embodiment of the present invention.
2 is a schematic diagram illustrating a road surface information providing device according to another embodiment of the present invention.
3 is a flowchart of a method for providing road surface information according to another embodiment of the present invention.

Throughout the specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated. In addition, terms such as “… unit,” “module,” and “… unit” described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. there is. In addition, when a part is said to be "connected" to another part, this includes not only the case of being "directly connected" but also the case of being "electrically connected" with another element interposed therebetween. Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in more detail with the reference numerals in the drawings, which are presented as preferred examples of the present invention and can be construed as limiting the present invention in any sense. There is no

An apparatus for providing road surface information according to the present invention includes a first vehicle, a road surface information generation unit connected to a body of the first vehicle to generate road surface abnormality information, and a first location information acquisition unit that acquires location information of the first vehicle. and a wireless transmission unit configured to transmit road surface information including the road abnormality information and the first location information to the outside of the first vehicle, and a road management server disposed at a predetermined distance from the wireless transmission unit and managing the road surface information; and a second vehicle traveling at a predetermined distance from the road surface management server and including a second location information acquisition unit, a wireless receiver, and a road surface information display unit displaying road surface information, wherein the road surface is transmitted from the road surface management server. Preferably, information is displayed on the road surface information display unit of the second vehicle according to the second location information.

As shown in FIG. 1, which is a block diagram for explaining an apparatus for providing road surface information according to an embodiment of the present invention, it is connected to a first vehicle 05 and a vehicle body of the first vehicle 05 to provide abnormal road surface information. A road surface information generation unit 10 to generate, a first location information acquisition unit 30 to acquire location information of the first vehicle 05, and road surface information including the road abnormality information and the first location information A wireless transmission unit 60 for transmitting to the outside of the first vehicle 05, a road management server 70 disposed at a predetermined distance from the wireless transmission unit 60 and managing the road surface information, and the road management server ( 70) and a second vehicle 07 traveling at a predetermined distance and including a second location information acquisition unit 32, a second wireless receiver 64, and a road surface information display unit 82 displaying road surface information. Preferably, the road surface information transmitted from the road surface management server 70 is displayed on the road surface information display unit 82 of the second vehicle 07 according to the second location information.

The road surface information generating unit 10 preferably includes at least one of an imaging device, a laser sensor, a laser scanner, a space scanner, a sound sensor, a vibration sensor, a speed sensor, and an acceleration sensor.

The road surface information generator 10 collects information obtained by installing a laser sensor and a vision camera in the vehicle 05 to comprehensively determine the abnormality of the road surface, including the location, size, and depth of manholes, speed bumps, or potholes. Including obtaining information.

The acoustic sensor is located on a body part of the vehicle 05 and detects noise generated from the vehicle 05 while the vehicle is running. A first acoustic sensor (not shown) and a wheel part of the vehicle 05 Including a second acoustic sensor (not shown) located and detecting the frictional sound between the wheels of the vehicle and the road surface while the vehicle is driving, comparing the original sound of the vehicle 05 with the sound caused by the frictional sound between the wheels and the road surface. This includes determining whether or not the road surface is abnormal.

The road surface information generation unit 10 includes an image camera installed in the vehicle 05 to receive an image of the road and compare it with a reference image to determine whether the road surface is abnormal.

The acceleration sensor may be a 3-axis acceleration sensor capable of detecting movement in forward, backward, left and right, and up and down directions in a 3-dimensional space in a 3-axis direction composed of X-axis, Y-axis, and Z-axis. Here, the acceleration sensor is an element for detecting a change in speed per unit time. Conventionally, a mechanical acceleration sensor has been mainly used, but recently, MEMS (Micro Electro Mechanical System) technology is applied to enable precise detection in a small size and consumes low power. A semiconductor type is mainly used, and a multi-axis acceleration sensor with a 2-dimensional or 3-dimensional detection function is mainly used, away from a method of using a plurality of acceleration sensors with a 1-dimensional detection function. In addition, acceleration sensors may be classified into piezoresistive, capacitance, and thermal distribution detection types according to detection methods.

In addition, the road surface information generating unit 10 further includes a vibration sensor 15 and a speed sensor 25 for measuring the vehicle speed of the first vehicle 05, and the vehicle speed measured by the speed sensor 25 and It is preferable to include determining whether the road surface is abnormal based on the amount of vibration generated by the vibration sensor 15 .

In general, when an abnormal road surface is recognized while driving, most drivers reduce their speed. This is to prevent this, since a greater shock (vibration) is felt when the vehicle speed is high. It is preferable to include a speed sensor 25 in the road surface information generating unit 10 in order to increase the reliability of whether the road surface is abnormal. It is preferable that the reference value of vibration for detecting the abnormal road surface is set differently based on the speed (vehicle speed) detected by the speed sensor 25 . More specifically, in the case of high-speed driving, the vibration reference value is increased so that small abnormalities on the road surface are not detected, and the detection priority is lowered to increase efficiency. It is desirable to set it so that it can be read.

As another preferred example, even if a low vibration value is detected, it is desirable to read the corresponding road surface by setting a lower reference value for the vibration detected after the speed is rapidly decelerated. When an abnormal road surface including a pothole is found, it is desirable to set it in consideration of the driver's habit of rapidly reducing the speed and avoiding it. For this purpose, it is preferable to memorize the driving speed for a certain period of time (several seconds). It is preferable to read the road surface when the vibration corresponding to the reference value is detected and not read when there is no vibration corresponding to the reference value after the speed rapidly decreases while driving.

As in the above preferred example, if vibration information and speed information are applied together, efficiency can be further increased.

In addition, the road surface information generation unit 10 further includes a rear camera 55, so that the rear camera 55 takes pictures when the amount of vibration by the vibration sensor 15 according to the measured vehicle speed is greater than a reference value. and generating the road surface information.

In addition, it is preferable that the road surface information generation unit 10 further includes a rear camera 55 so that when the road surface is determined to be abnormal, the rear camera 55 captures a picture.

The vehicle 05 has a laser sensor, a vision camera, and a method of capturing and comparing images, which is difficult to distinguish from shadows, stains, patches, or lights. In addition, it takes a lot of time, equipment, and manpower to inspect all major roads after installing these devices, and there is a limit in that all the devices used are expensive.

Therefore, the method of obtaining road surface information through the rear camera 55 as described above has a very remarkable effect. After determining whether the road surface is abnormal using at least one of several types of sensors, if it is determined that the road surface is abnormal, a picture or video is taken through the rear camera 55. Using a photo or image analysis device, it is possible to determine the road surface to be repaired with the photographed photo or image information, and analyze the risk of the road surface by inferring the size or depth of the porthole, and a plurality of vehicles including the second vehicle (07). information can be transmitted to the vehicle. The risk can be analyzed through a simple algorithm, and the size and depth of the porthole, the amount of traffic on the corresponding road surface, and the average speed of vehicles passing on the corresponding road surface can be determining factors in the algorithm. In the case of using an analysis device, it may be difficult to distinguish due to shadows, stains, patches, and lighting. In this case, when reliability is lowered, it is also possible to infer the size or depth of a porthole with the naked eye. Even if it is inferred with the naked eye, it is self-evident that road surface information can be converted into data so that it can be transmitted to a plurality of vehicles including the second vehicle 07. In addition, since the lanes are photographed together, it has the advantage of being easy to analogize.

1 shows an example of determining whether or not the rear camera 55 is operating after determining whether or not the road surface is abnormal using the vibration sensor 15 and the speed sensor 25, and then taking pictures. While the vehicle 05 is driving, location information can be obtained by the first location information acquisition unit 30, and vibration information generated at the corresponding location can be obtained by the vibration sensor 15. The road surface information generating unit 10 includes determining that the road surface is abnormal when vibration is detected at a predetermined reference value or more, and when the vibration is greater than a reference value, the vehicle 05 proceeds through the rear camera 55. The trailing direction of the direction is taken as a photo or video.

In addition, a shooting controller 52 connected to the rear camera 55 of the first vehicle 05 to control shooting, and a shooting reference value controller 90 connected to the road surface management server 70 are further included. Accordingly, the shooting criterion of the shooting controller 52 for the shooting command of the rear camera 55 further includes transmitting a signal transmitted from the shooting reference value controller 90 to the shooting controller 52. desirable.

A shooting controller 52 connected to the rear camera 55 of the first vehicle 05 to control shooting, and a shooting reference value controller 90 connected to the road surface management server 70, As for the photographing reference of the photographing controller 52 for the photographing command of the rear camera 55, a signal transmitted from the photographing reference value controller 90 is transferred to the photographing controller 52. Since the information may not be useful if it is continuously obtained to an abnormal point where maintenance is not required, it is also preferable that the shooting control unit 52 does not shoot when more than a certain number of information is acquired. If the cause of vibration at the already obtained abnormal point is not a pothole but a speed bump, the information is already known by another technology, so there is no need to acquire the same information for a certain period of time. In addition, even at a point where maintenance is required, it is inefficient when information is repeatedly acquired. Since there is a possibility that the information collected by the first vehicle (or the first vehicle 05) may be repeatedly collected by other vehicles, a signal is transmitted from the shooting reference value controller 90 disposed at a predetermined distance, It is preferable that the transmitted signal is transmitted to the shooting controller 52 via the first wireless receiver 82 and used as a shooting standard. The operation of the rear camera 55 is determined by the command of the photographing control unit 52 .

In addition, the photographing standard may be required to be changed according to circumstances. As a preferred example, there is a case in which only information by a large vibration is transmitted for efficiency of information transmission, and an abnormal road surface information by a small amount of vibration is also transmitted.

Information on the amount of vibration and vehicle speed generated by the road surface information generator 10 is transmitted to the wireless transmission unit 60 together with the first location information through the first location information acquisition unit 30, and the control center 03 through the communication network. ) and is transmitted to the road surface management server 70 included in. At this time, the photographing control unit 52 controls the rear camera 55 to perform rear photographing, and the obtained photo or image information may be transmitted together. Shooting criteria can be changed as needed. Alternatively, a criterion for determining whether the road surface is abnormal may be changed. The shooting standard in the shooting controller 52 is changed by a signal transmitted from the shooting reference value controller 90 . The road surface management server 70 stores road surface information according to the first location information, and according to the second location of the second vehicle 07 acquired by the second location information acquisition unit 32, the route of the corresponding location It transmits road surface information suitable for The transmitted information is received by the second wireless receiver 64 and transmitted and displayed on the road surface information display unit 82 so that the driver of the second vehicle 07 can recognize it.

It is preferable that the display of the road surface information display unit 82 so that the driver can recognize it includes at least one of voice guidance, warning sound, and display on the display screen.

The first location information acquisition unit 30 and the second location information acquisition unit 32 may include a global positioning system (GPS) module. The rear camera 55 may include a rear photographing unit (not shown). The shooting control unit 52 may include one of a control module, a control device, and a control unit. The wireless transmitting unit, the first wireless receiving unit, and the second wireless receiving unit may include a wireless communication module. The photographing reference value control unit may include a control module that is disposed outside the vehicle and wirelessly transmits/receives the control module.

Meanwhile, an apparatus for providing road surface information according to the present invention includes a road surface information generating unit generating road surface information, a first GPS module acquiring location information, a wireless transmission module transmitting the road surface information and location information to the outside, and generating the road surface information. unit, the first vehicle including the first GPS module, the wireless transmission module, and the second GPS module, a wireless reception module for receiving information from the outside, a road information display unit for displaying information received from the wireless reception module, Receiving the location information obtained from the 2GPS module, the wireless reception module, the second vehicle including the road surface information display unit, and the road surface information generated by the road surface information generating unit and the first GPS module, the second GPS module It is preferable to include a road surface management server that transmits the road surface information according to the driving route of the second vehicle acquired in the wireless receiving module.

As shown in FIG. 2, which is a schematic diagram for explaining a road surface information providing device according to another embodiment of the present invention, the road surface information generating unit 10 that generates road surface information includes a vibration sensor 15 and a speed sensor 25 includes A first GPS module 35 for obtaining location information, a first wireless communication module 65 for transmitting the road surface information and the location information to the outside, the road surface information generator 10, the first GPS module 35, From the first vehicle 05 including the wireless transmission module 65, the second GPS module 37, the second wireless communication module 67 receiving information from the outside, and the second wireless communication module 67 A second vehicle 07 including a road surface information display unit 82 displaying received information, the second GPS module 37, the second wireless communication module 67, and the road surface information display unit 82 . The first wireless communication module 65 includes a wireless transmission module, and the second wireless communication module 67 includes a wireless reception module. In addition, the road surface information generated by the road surface information generating unit 10 and the location information acquired by the first GPS module 35 are received, and the second vehicle 07 obtained by the second GPS module 37 is received. It is preferable to include a road surface management server 70 that transmits the road surface information according to the driving route of ) to the second wireless communication module 67 .

The road surface information generating unit 10 preferably includes at least one of an imaging device, a laser sensor, a laser scanner, a space scanner, a sound sensor, a vibration sensor, a speed sensor, and an acceleration sensor.

The road surface information generator 10 collects information obtained by installing a laser sensor and a vision camera in the vehicle 05 to comprehensively determine the abnormality of the road surface, including the location, size, and depth of manholes, speed bumps, or potholes. Including obtaining information.

The acoustic sensor is located on a body part of the vehicle 05 and detects noise generated from the vehicle 05 while the vehicle is running. A first acoustic sensor (not shown) and a wheel part of the vehicle 05 Including a second acoustic sensor (not shown) located and detecting the frictional sound between the wheels of the vehicle and the road surface while the vehicle is driving, comparing the original sound of the vehicle 05 with the sound caused by the frictional sound between the wheels and the road surface. This includes determining whether or not the road surface is abnormal.

The road surface information generation unit 10 includes an image camera installed in the vehicle 05 to receive an image of the road and compare it with a reference image to determine whether the road surface is abnormal.

In addition, the road surface information generating unit 10 further includes a vibration sensor 15 and a speed sensor 25 for measuring the vehicle speed of the first vehicle 05, and the vehicle speed measured by the speed sensor 25 and It is preferable to include determining whether the road surface is abnormal based on the amount of vibration generated by the vibration sensor 15 .

In general, when an abnormal road surface is recognized while driving, most drivers reduce their speed. This is to prevent this, since a greater shock (vibration) is felt when the vehicle speed is high. It is preferable to include a speed sensor 25 in the road surface information generating unit 10 in order to increase the reliability of whether the road surface is abnormal. It is preferable that the reference value of vibration for detecting the abnormal road surface is set differently based on the speed (vehicle speed) detected by the speed sensor 25 . More specifically, in the case of high-speed driving, the vibration reference value is increased so that small abnormalities on the road surface are not detected, and the detection priority is lowered to increase efficiency. It is desirable to set it so that it can be read.

As another preferred example, even if a low vibration value is detected, it is desirable to set a lower reference value for the vibration detected after the speed is rapidly decelerated so that the corresponding road surface is read. When an abnormal road surface including a porthole 12 is found, it is preferable to set it in consideration of the driver's habit of rapidly reducing the speed and avoiding it. For this purpose, it is preferable to memorize the driving speed for a certain period of time (several seconds). It is preferable to read the road surface when the vibration corresponding to the reference value is detected and not read when there is no vibration corresponding to the reference value after the speed rapidly decreases while driving.

As in the above preferred example, if vibration information and speed information are applied together, efficiency can be further increased.

In addition, the road surface information generation unit 10 further includes a rear camera 55, so that the rear camera 55 takes pictures when the amount of vibration by the vibration sensor 15 according to the measured vehicle speed is greater than a reference value. and generating the road surface information.

In addition, it is preferable that the road surface information generation unit 10 further includes a rear camera 55 so that when the road surface is determined to be abnormal, the rear camera 55 captures a picture.

The vehicle 05 has a laser sensor, a vision camera, and a method of capturing and comparing images, which is difficult to distinguish from shadows, stains, patches, or lights. In addition, it takes a lot of time, equipment, and manpower to inspect all major roads after installing these devices, and there is a limit in that all the devices used are expensive.

Therefore, the method of obtaining road surface information through the rear camera 55 as described above has a very remarkable effect. After determining whether the road surface is abnormal using at least one of several types of sensors, if it is determined that the road surface is abnormal, a picture or video is taken through the rear camera 55. Using a photo or image analysis device, it is possible to determine the road surface to be repaired with the photographed photo or image information, and analyze the risk of the road surface by inferring the size or depth of the porthole, and a plurality of vehicles including the second vehicle (07). information can be transmitted to the vehicle. The risk can be analyzed through a simple algorithm, and the size and depth of the porthole, the amount of traffic on the corresponding road surface, and the average speed of vehicles passing on the corresponding road surface can be determining factors in the algorithm. In the case of using an analysis device, it may be difficult to distinguish due to shadows, stains, patches, and lighting. In this case, when reliability is lowered, it is also possible to infer the size or depth of a porthole with the naked eye. Even if it is inferred with the naked eye, it is self-evident that road surface information can be converted into data so that it can be transmitted to a plurality of vehicles including the second vehicle 07. In addition, since the lanes are photographed together, it has the advantage of being easy to analogize.

2 shows an example of determining whether or not the rear camera 55 operates in the shooting control module 54 after determining whether the road surface is abnormal by the vibration sensor 15 and the speed sensor 25, and taking pictures. While the vehicle 05 is driving, location information can be known by the first GPS module 35, and vibration information generated at the corresponding location can be known by the vibration sensor 15. The road surface information generating unit 10 includes determining that the road surface is abnormal when vibration is detected at a predetermined reference value or more, and when the vibration is greater than a reference value, the vehicle 05 proceeds through the rear camera 55. The trailing direction of the direction is taken as a photo or video.

In addition, a shooting control module 54 connected to the rear camera 55 of the first vehicle 05 to control shooting and a shooting reference control unit 95 connected to the road surface management server 70 are further provided. Including, the shooting criterion of the shooting control module 54 for the shooting command of the rear camera 55 is that the signal transmitted from the shooting criterion control terminal 95 is transmitted to the shooting control module 54. It is preferable to include

A shooting control module 54 connected to the rear camera 55 of the first vehicle 05 to control shooting, and a shooting reference control unit 95 connected to the road surface management server 70, As for the photographing standard of the photographing control module 54 for the photographing command of the rear camera 55, a signal transmitted from the photographing standard control unit 95 is transmitted to the photographing control module 54. Since the information may not be useful if it is continuously obtained to an abnormal point where maintenance is not required, it is also preferable that the photographing control module 54 not photograph when a certain number of information is acquired. If the source of vibration at the already obtained abnormal point is not the porthole 12 but the speed bump 14, since the information is already known by another technology, there is no need to acquire the same information for a certain period of time. In addition, even at a point where maintenance is required, it is inefficient when information is repeatedly acquired. Even though there is information collected by the first vehicle (or the first vehicle 05), there is a possibility of it being repeatedly collected by other vehicles, so a signal is transmitted from the shooting reference control terminal 95 disposed at a predetermined distance, It is preferable that the transmitted signal is transmitted to the shooting control module 54 via the first wireless communication module 65 and used as a shooting standard. The operation of the rear camera 55 is determined by the command of the shooting control module 54 .

In addition, the photographing standard may be required to be changed according to circumstances. As a preferred example, there is a case in which only information by a large vibration is transmitted for efficiency of information transmission, and an abnormal road surface information by a small amount of vibration is also transmitted.

The vibration amount and vehicle speed information generated by the road surface information generating unit 10 are transmitted to the first wireless communication module 65 together with the first location information through the first GPS module 35, and the control center 03 through the communication network. ) and is transmitted to the road surface management server 70 included in. At this time, the photographing control module 54 controls the rear camera 55 to perform rear photographing, and the acquired photo or image information may be transmitted together. Shooting criteria can be changed as needed. Alternatively, a criterion for determining whether the road surface is abnormal may be changed. The shooting standard in the shooting control module 54 is changed by a signal transmitted from the shooting standard control unit 95 . The road surface management server 70 stores road surface information according to the first location information, and according to the second location of the second vehicle 07 obtained from the second GPS module 37, the road surface suitable for the route of the corresponding location. information will be sent. The transmitted information is received by the second wireless communication module 67 and transmitted and displayed on the road surface information display unit 82 so that the driver of the second vehicle 07 can recognize it.

It is preferable that the display of the road surface information display unit 82 so that the driver can recognize it includes at least one of voice guidance, warning sound, and display on the display screen.

The rear camera 55 may include a rear photographing unit (not shown). The shooting control module 54 may include one of a control module, a control device, and a control unit. The shooting standard control unit 95 may include a control module that is disposed outside the vehicle and wirelessly transmits/receives the control module. Preferably, the first wireless communication module 65 and the second wireless communication module 67 include a wireless transmitting module or a wireless receiving module.

On the other hand, the method for providing road surface information according to the present invention includes obtaining location information on which a first vehicle is driving, generating road surface information on which the first vehicle is driving, transmitting the location information and the road surface information, Receiving and storing the transmitted location information and the road surface information; obtaining location information on which the second vehicle is traveling; receiving the stored road surface information according to a travel route of the second vehicle; It is preferable to include displaying the received road surface information.

The generating of the road surface information may further include measuring an amount of vibration of the road surface and measuring a vehicle speed of the first vehicle.

The method may further include photographing the rear side when the amount of vibration according to the measured vehicle speed is greater than a reference value.

In addition, it is preferable that the step of generating the road surface information further includes the step of photographing the rear.

Preferably, the photographing of the rear further includes receiving a photographing reference value, and the criterion for photographing the rear includes a signal received in the photographing reference value receiving step.

On the other hand, the method for providing road surface information to a patient transport vehicle according to the present invention comprises the steps of acquiring location information on which a first vehicle is driving, generating road surface information on which the first vehicle is driving, the location information and the road surface. Transmitting information, receiving and storing the transmitted location information and the road surface information, obtaining location information on which the patient transport vehicle travels, the stored road surface information according to a traveling route of the patient transport vehicle and displaying the received road surface information.

The generating of the road surface information may further include measuring an amount of vibration of the road surface and measuring a vehicle speed of the first vehicle.

The method may further include photographing the rear side when the amount of vibration according to the measured vehicle speed is greater than a reference value.

In addition, it is preferable that the step of generating the road surface information further includes the step of photographing the rear.

Preferably, the photographing of the rear further includes receiving a photographing reference value, and the criterion for photographing the rear includes a signal received in the photographing reference value receiving step.

As shown in FIG. 3, which is a flowchart of a method for providing road surface information according to another embodiment of the present invention, a step S32 of obtaining location information on which the first vehicle is traveling is included. In addition, in the step of generating road surface information on which the first vehicle travels, the speed is detected (S22) and the amount of vibration is measured (S12). S42) and photographing the rear (S52). Since the first vehicle is in a driving state and the captured location has passed a certain distance from the abnormal road surface, it is preferable to correct the location value (S34) based on the acquired location information (S32) and the detected speed (S22). . It is preferable to transmit the location information and the road surface information (S62), and receive the transmitted location information and the road surface information and store them in a road management server (S72). In addition, it includes acquiring location information on which the second vehicle is driving (S74), and the obtained second location information is transmitted to a road surface management server to store the stored road surface information according to a driving route of the second vehicle. By transmission (S76), the road surface information is received in the second vehicle. Preferably, the received road surface information is displayed on a display unit included in the second vehicle (S78).

Also, the second vehicle includes a patient transport vehicle. There is a need to minimize vibration in a vehicle for transporting a patient with a fracture, and the above method has an effect of being able to receive information on whether or not the road surface is abnormal according to the driving route.

On the other hand, the method for providing road surface information according to the present invention comprises the steps of obtaining location information on which a first user terminal moves, generating road surface information on which the first user terminal moves, and transmitting the location information and the road surface information. Step, receiving and storing the transmitted location information and road surface information, acquiring location information on which the second user terminal moves, receiving the stored road surface information according to a traveling route of the second user terminal and displaying the received road surface information.

The generating of the road surface information may further include measuring the amount of vibration of the road surface and measuring a moving speed of the first user terminal.

In addition, it is preferable to further include the step of photographing the rear when the amount of vibration according to the measured moving speed is greater than a reference value.

In addition, it is preferable that the step of generating the road surface information further includes the step of photographing the rear.

Preferably, the photographing of the rear further includes receiving a photographing reference value, and the criterion for photographing the rear includes a signal received in the photographing reference value receiving step.

In addition, it is preferable that the road surface management server 70 further includes classifying and storing the photographed information according to the location information.

In FIG. 2, on the basis of vibration, abnormal points on the road surface include portholes 12 requiring repair, as well as speed bumps 14 and manholes 16 that do not require repair. Photo or image information that is continuously transmitted from the same point may be rather inefficient information. Therefore, it is preferable to classify and store by location information in the road surface management server 70 based on the acquired location information. There is an effect that it is convenient to distinguish useful information from information that is not useful among information obtained through this.

On the other hand, it is preferable to include a recording medium on which a computer-readable program for implementing at least one of the above methods is recorded.

The recording medium on which the program is recorded is a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (eg SD or XD memory, etc.), RAM (Random Access Memory) SRAM (Static Random Access Memory), ROM (ROM, Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory) magnetic memory, magnetic disk , an optical disk, and at least one type of storage medium.

The rear camera 55 may be a black box. When vibration is detected in an image that is already being captured, it is possible to store or transmit the corresponding information along with location information.

At least one of the configurations of the vibration information generation unit 10 or the vibration sensor 15 can be manufactured by integrating with the high-pass terminal.

An apparatus for providing road surface information according to the present invention has the advantage of being inexpensive, and thus can be installed in a plurality of vehicles, or can be implemented by monitoring the movement of a plurality of user terminals. It is desirable to have the control center 03 manage the abnormal road surface by location by receiving a plurality of corresponding information in real time. It is preferable to provide the corresponding information to the control center 03 having jurisdiction over a certain area so that it is provided to a number of other vehicles according to the moving route.

Conventionally, expensive vehicles and personnel had to be mobilized to obtain road surface information, but the first vehicle or the first user terminal according to the present invention can be used as a police car, delivery truck, school bus, ambulance, business vehicle, or logistics vehicle. When applied to one or more vehicles, information is transmitted from the vehicle to be driven anyway, and through this, the control center (03) collects information in real time, prioritizes it according to the location and size of the expected risk, and moves the route It is possible to transmit to the second vehicle or the patient transfer vehicle or the second user terminal. In particular, when the first vehicle is an ambulance, the daily driving volume is large, the probability of detecting an abnormal point can be increased by driving on multiple lanes of bus-only lanes and general roads, and the speed is different in the case of emergency and the general public, so one vehicle Even if it is installed on the same point, the speed is likely to be different, so the possibility of being photographed at either low speed or high speed is higher, and more comprehensive information collection is possible.

As described above, according to the present invention, it is possible to quickly and economically obtain an abnormal point on the road surface without using expensive professional measuring equipment, and also transmit accurate information in real time to a third vehicle. There are advantages to being there.

03 Control center 15 Vibration sensor
05 First vehicle 25 Speed sensor
07 Second vehicle 32 Second location information acquisition unit
10 Road surface information generator 55 Rear camera
30 First location information acquisition unit 64 Second wireless reception unit
52 Shooting control unit 82 Road information display unit
60 wireless transmitter 35 1st GPS module
62 1st wireless receiver 37 2nd GPS module
70 Road management server 65 1st wireless communication module

Claims (1)

generating road surface information by the road surface management server by photographing the rear of the police car moving;
Including; providing the generated road surface information according to the movement path of the user terminal;
The generating of the road surface information further includes providing a shooting reference value,
The criterion for photographing the rear is determined by a signal provided in the photographing reference value providing step. Porthole real-time detection method using a police car.

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