KR102609017B1 - A method of providing road safety information to a patient transport vehicle using a school bus - Google Patents

Abstract

Due to the increase in the number of heavy vehicles and the rapidly changing climate, road surfaces are damaged, causing various accidents and driver inconveniences to increase. In particular, there is a need to minimize vibration in vehicles transporting fracture patients, etc., but there are limitations in conventional methods of providing road surface information.
The present invention provides information on a device and method that is economical, can be easily installed in a vehicle, and efficiently provides road surface information in real time.
The method of providing road safety information to a patient transport vehicle using a school bus according to the present invention includes the steps of the road surface management server acquiring location information of the school bus, and generating road surface information by photographing the rear of the school bus as it moves. A step of providing road surface information generated according to the movement path of the school bus, wherein the step of generating the road surface information further includes providing a shooting reference value, and the reference for shooting the rear is providing a shooting reference value. It includes what is determined by the signal provided by.

Description

{A method of providing road safety information to a patient transport vehicle using a school bus}

The present invention relates to a method of providing road safety information to a patient transport vehicle using a school bus.

Due to the increase in the number of heavy vehicles and the rapidly changing climate, road surfaces are damaged, causing various accidents and driver inconveniences to increase.

During the thaw and rainy season, potholes that form puddles on the pavement surface cause road traffic accidents, and the resulting social and economic damage is increasing. According to data submitted to the National Assembly Audit, Land, Infrastructure and Transport Committee in 2013, it was reported that the number of potholes on general national roads increased by more than 50% from about 25,000 in 2009 to 38,000 in 2012.

In particular, there is a need to minimize vibration in vehicles transporting fracture patients, etc., but there are limitations in conventional methods of providing road surface information.

For the above reasons, there is a need for a system and method that can effectively and economically provide road surface information, can be easily installed in a vehicle, and can provide abnormal road surface information in real time. The present invention relates to an apparatus and method for providing road surface information, and more specifically, 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 on which a computer-readable program is recorded.

The technology behind the present invention is disclosed in Korean Patent Publication No. 10-2013-0062034 (2013.06.12).

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

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

Another purpose of the present invention is to provide a method of providing highly reliable road surface information to enable safe driving.

Another purpose of the present invention is to provide road surface information to patient transport vehicles that must avoid impacts so that they 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 can be clearly understood from the description below.

delete

The present invention was conceived 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 a device and method that is economical and can be easily installed on a vehicle. there is.

Additionally, it has the advantage of enabling safer driving by providing a method of providing highly reliable road surface information.

In addition, it has the advantage of providing road surface information to patient transport vehicles that must avoid impacts, allowing them to transport patients more safely.

1 is a block diagram for explaining a road surface information providing device according to an embodiment of the present invention.
Figure 2 is a schematic diagram illustrating a road surface information providing device according to another embodiment of the present invention.
Figure 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 part is said to “include” a certain element, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary. In addition, terms such as "... unit", "module", and "... unit" used in the specification refer to a unit that processes at least one function or operation, which may be implemented as hardware, software, or a combination of hardware and software. there is. Additionally, when a part is said to be “connected” to another part, this includes not only the case where it is “directly connected,” but also the case where it is “electrically connected” with another element in between. Hereinafter, the structure and operation will be described in more detail through preferred embodiments of the present invention along with reference numerals in the drawings. This is presented as a preferred example of the present invention and may not be construed as limiting the present invention in any way. There is no

A road surface information providing device according to the present invention includes a first vehicle, a road surface information generator that is connected to the body of the first vehicle and generates abnormal information on the road surface, and a first location information acquisition unit that acquires location information of the first vehicle. , and a wireless transmitter that transmits road surface information including the road surface abnormality information and the first location information to the outside of the first vehicle, and a road surface management server disposed at a predetermined distance from the wireless transmitter and manages the road surface information, and a second vehicle that travels at a predetermined distance from the road surface management server and includes a second location information acquisition unit, a wireless receiver, and a road surface information display unit that displays road surface information, wherein the road surface information is transmitted from the road surface management server. Preferably, the information is displayed on the road information display unit of the second vehicle according to the second location information.

As shown in Figure 1, which is a block diagram for explaining a road surface information providing device according to an embodiment of the present invention, a first vehicle 05 is connected to the body of the first vehicle 05 to provide abnormal information on the road surface. A road surface information generator 10 that generates, a first location information acquisition unit 30 that acquires location information of the first vehicle 05, and road surface information including the road surface abnormality information and the first location information. A wireless transmitter 60 that transmits to the outside of the first vehicle 05, a road surface management server 70 disposed at a predetermined distance from the wireless transmitter 60 and manages the road surface information, and the road surface management server ( 70) and a second vehicle 07 that runs at a predetermined distance and includes a second location information acquisition unit 32, a second wireless receiver 64, and a road surface information display unit 82 that displays 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 generator 10 preferably includes at least one of an imager, a laser sensor, a laser scanner, a spatial scanner, an acoustic 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 and comprehensively generates road surface abnormalities including the location, size, and depth of manholes, speed bumps, or potholes. Includes obtaining information.

The acoustic sensor is a first acoustic sensor (not shown) located on the body of the vehicle 05 and detects noise generated from the vehicle 05 while the vehicle is running, and a first acoustic sensor (not shown) located on the wheel portion of the vehicle 05. Including a second acoustic sensor (not shown) that is located and detects the friction sound between the wheels of the vehicle and the road surface while the vehicle is driving, and compares the original sound of the vehicle 05 with the sound caused by the friction sound between the wheels and the road surface. This includes determining whether there are any abnormalities in the road surface.

The road surface information generator 10 installs an image camera in the vehicle 05 to receive an image of the road and compares it with a reference image to determine whether there is an abnormality in the road surface.

The acceleration sensor may be a 3-axis acceleration sensor capable of detecting movement in the front-back, left-right, and up-and-down directions in a 3-dimensional space consisting of the X-axis, Y-axis, and Z-axis. Here, an acceleration sensor is a device for detecting changes in speed per unit time. Conventionally, mechanical acceleration sensors were mainly used, but recently, MEMS (Micro Electro Mechanical System) technology has been applied to enable precise detection in a small size and consume low power. Semiconductor type is mainly used, and instead of using a plurality of acceleration sensors with one-dimensional detection function, multi-axis acceleration sensors with two-dimensional or three-dimensional detection function are mainly used. Additionally, acceleration sensors can be classified into piezoresistive, capacitive, and thermal distribution detection types depending on the detection method.

In addition, the road surface information generator 10 further includes a vibration sensor 15 and a speed sensor 25 that measures 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 the feeling of greater shock (vibration) when the vehicle speed is high. In order to increase the reliability of whether there is an abnormal road surface, it is desirable to include a speed sensor 25 in the road surface information generator 10. It is desirable that the reference value of vibration for detecting an abnormal road surface be set differently based on the speed (vehicle speed) detected by the speed sensor 25. More specifically, in the case of high-speed driving, the standard value of vibration is raised to prevent small abnormalities in the road surface from being detected and the detection priority is lowered to increase efficiency. Conversely, in the case of low-speed driving, the vibration standard value is lowered to prevent abnormal road surfaces that need to be detected. It is desirable to set it to be read.

As another preferred example, even if a low vibration value is detected, it is desirable to rapidly decelerate the speed and then set a lower reference value for the detected vibration to read the road surface. When discovering an abnormal road surface containing a pothole, it is advisable to drastically reduce the speed and set the speed in consideration of the driver's habits to avoid it. For this purpose, it is desirable to remember the driving speed for a certain period of time (several seconds). If the speed decreases rapidly while driving and there is no vibration corresponding to the standard value, it is desirable not to read, but to read the road surface when vibration corresponding to the standard value is detected.

As in the preferred example above, applying vibration information and speed information together can further increase efficiency.

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

In addition, the road surface information generator 10 preferably further includes a rear camera 55, so that the rear camera 55 takes pictures when the road surface is determined to be abnormal.

Methods such as laser sensors, vision cameras, and image capture and comparison in vehicles (05) have difficulty distinguishing between shadows, stains, patches, or lighting. In addition, not only does it take a lot of time, equipment, and manpower to inspect all major roads after installing these devices, but there is a limitation that the devices used are all expensive.

Therefore, the method of acquiring road surface information through the rear camera 55 as described above has a very significant 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 photo or video is taken through the rear camera 55. Using a photo or video analysis device, the road surface that needs to be repaired can be determined using the captured photo or video information, the size or depth of the pothole is inferred, the risk of the road surface is analyzed, and multiple vehicles including the second vehicle (07) Information can be transmitted to vehicles. Risk can be analyzed through a simple algorithm, and the size and depth of the pothole, the traffic volume on the road surface, and the average speed of vehicles passing on the road surface can be used as determining factors in the algorithm. When using an analysis device, it may be difficult to distinguish due to shadows, stains, patches, and lighting. However, in cases where reliability is reduced, it is also possible to infer the size or depth of the pothole with the naked eye. Even if inferred with the naked eye, it is obvious that road surface information can be converted into data so that it can be transmitted to multiple vehicles, including the second vehicle 07. Additionally, it has the advantage of being easy to infer because the lanes are photographed together.

Figure 1 shows an example of determining whether or not the road surface is abnormal using the vibration sensor 15 and the speed sensor 25, and then determining whether or not the rear camera 55 is operating at the photography control unit 52 to take pictures. While the vehicle 05 is driving, location information can be obtained by the first location information acquisition unit 30, and vibration information occurring at the location can be obtained by the vibration sensor 15. The road surface information generator 10 determines that the road surface is abnormal when vibration is detected above a predetermined reference value, and when the vibration is above the reference value, the vehicle 05 progresses through the rear camera 55. The rear direction of the direction is taken as a photo or video.

In addition, it further includes a shooting control unit 52 connected to the rear camera 55 of the first vehicle 05 to control shooting, and a shooting reference value control unit 90 connected to the road surface management server 70. Therefore, the shooting standard of the shooting control unit 52 for the shooting command of the rear camera 55 further includes that the signal transmitted from the shooting standard value control unit 90 is transmitted to the shooting control unit 52. desirable.

It further includes a shooting control unit 52 connected to the rear camera 55 of the first vehicle 05 to control shooting, and a shooting reference value control unit 90 connected to the road surface management server 70, The shooting standard of the shooting control unit 52 for commanding the rear camera 55 to shoot is a signal transmitted from the shooting standard value control unit 90 and is transmitted to the shooting control unit 52. If the information is continuously acquired to an abnormal point where maintenance is not necessary, the information may not be useful, so it is also desirable for the shooting control unit 52 to stop shooting when more than a certain number of information is acquired. If the cause of vibration at the abnormal point already obtained is a speed bump rather than a pothole, there is no need to acquire the same information for a certain period of time because the information is already known through other technology. Additionally, even at points where maintenance is required, it is inefficient when information is acquired repeatedly. Even though there is information collected by the first vehicle (or the first vehicle 05), there is a possibility that it may be repeatedly collected by other vehicles, so a signal is transmitted from the shooting reference value control unit 90 located at a predetermined distance, It is preferable that the transmitted signal be transmitted to the shooting control unit 52 through the first wireless receiver 82 and be used as a standard for shooting. The operation of the rear camera 55 is determined by a command from the shooting control unit 52.

Additionally, filming standards may require change depending on the situation. As a preferred example, for the sake of information transmission efficiency, there are cases where only information due to large vibrations is transmitted and information on abnormal road surfaces due to small amounts of vibration must also be transmitted.

The information on the amount of vibration and vehicle speed generated by the road surface information generator 10 is transmitted to the wireless transmitter 60 along with the first location information through the first location information acquisition unit 30, and is transmitted to the control center 03 through a communication network. ) is transmitted to the road surface management server 70 included in the. At this time, the photographic control unit 52 controls the rear camera 55 to take rearward photographs, and the resulting photo or video information may be transmitted together. Shooting standards may change as needed. Alternatively, the criteria for determining whether a road surface is abnormal may be changed. The shooting standard in the shooting control unit 52 is changed by a signal transmitted from the shooting standard value control unit 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 obtained from the second location information acquisition unit 32, the route of the corresponding location is determined. Road surface information appropriate to the condition is transmitted. The transmitted information is received by the second wireless receiver 64 and transmitted and displayed on the road information display unit 82 so that the driver of the second vehicle 07 can recognize it.

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

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 camera unit (not shown). The shooting control unit 52 may include one of a control module, a control device, and a control stage. The wireless transmitter, first wireless receiver, and second wireless receiver may include a wireless communication module. The shooting reference value control unit may include a control module that is placed outside the vehicle and transmits and receives wirelessly.

Meanwhile, the road surface information providing device according to the present invention includes a road surface information generator that generates road surface information, a first GPS module that acquires location information, a wireless transmission module that transmits the road surface information and the location information to the outside, and a road surface information generator that generates the road surface information. unit, the first GPS module, a first vehicle including the wireless transmission module, and a second GPS module, a wireless receiving module that receives information from the outside, a road information display unit that displays information received from the wireless receiving module, the first A second vehicle including a 2GPS module, the wireless reception module, and the road information display unit, and receiving the road surface information generated by the road surface information generator and the location information acquired by the first GPS module, and the second GPS module. It is preferable to include a road surface management server that transmits the road surface information according to the driving path of the second vehicle obtained in to the wireless reception module.

As shown in Figure 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 generator 10 that generates road surface information includes a vibration sensor 15 and a speed sensor 25. Includes. A first GPS module 35 for acquiring location information, a first wireless communication module 65 for transmitting the road information and the location information to the outside, the road information generator 10, the first GPS module 35, A first vehicle (05) including the wireless transmission module (65), a second GPS module (37), a second wireless communication module (67) that receives information from the outside, and a second wireless communication module (67) that receives information from the second wireless communication module (67). It includes a second vehicle (07) including a road information display unit (82) that displays received information, the second GPS module (37), the second wireless communication module (67), and the road 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 generator 10 and the location information acquired by the first GPS module 35 are received, and the second vehicle 07 acquired by the second GPS module 37 ) It is preferable to include a road surface management server 70 that transmits the road surface information according to the driving path to the second wireless communication module 67.

The road surface information generator 10 preferably includes at least one of an imager, a laser sensor, a laser scanner, a spatial scanner, an acoustic 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 and comprehensively generates road surface abnormalities including the location, size, and depth of manholes, speed bumps, or potholes. Includes obtaining information.

The acoustic sensor is a first acoustic sensor (not shown) located on the body of the vehicle 05 and detects noise generated from the vehicle 05 while the vehicle is running, and a first acoustic sensor (not shown) located on the wheel portion of the vehicle 05. Including a second acoustic sensor (not shown) that is located and detects the friction sound between the wheels of the vehicle and the road surface while the vehicle is driving, and compares the original sound of the vehicle 05 with the sound caused by the friction sound between the wheels and the road surface. This includes determining whether there are any abnormalities in the road surface.

The road surface information generator 10 installs an image camera in the vehicle 05 to receive an image of the road and compares it with a reference image to determine whether there is an abnormality in the road surface.

In addition, the road surface information generator 10 further includes a vibration sensor 15 and a speed sensor 25 that measures 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 the feeling of greater shock (vibration) when the vehicle speed is high. In order to increase the reliability of whether there is an abnormal road surface, it is desirable to include a speed sensor 25 in the road surface information generator 10. It is desirable that the reference value of vibration for detecting an abnormal road surface be set differently based on the speed (vehicle speed) detected by the speed sensor 25. More specifically, in the case of high-speed driving, the standard value of vibration is raised to prevent small abnormalities in the road surface from being detected and the detection priority is lowered to increase efficiency. Conversely, in the case of low-speed driving, the vibration standard value is lowered to prevent abnormal road surfaces that need to be detected. It is desirable to set it to be read.

As another preferred example, even if a low vibration value is detected, it is desirable to rapidly decelerate the speed and then set a lower reference value for the detected vibration so that the relevant road surface can be read. When discovering an abnormal road surface including a pothole 12, it is desirable to drastically reduce the speed and set the speed in consideration of the driver's habits to avoid it. For this purpose, it is desirable to remember the driving speed for a certain period of time (several seconds). If the speed decreases rapidly while driving and there is no vibration corresponding to the standard value, it is desirable not to read, but to read the road surface when vibration corresponding to the standard value is detected.

As in the preferred example above, applying vibration information and speed information together can further increase efficiency.

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

In addition, the road surface information generator 10 preferably further includes a rear camera 55, so that the rear camera 55 takes pictures when the road surface is determined to be abnormal.

Methods such as laser sensors, vision cameras, and image capture and comparison in vehicles (05) have difficulty distinguishing between shadows, stains, patches, or lighting. In addition, not only does it take a lot of time, equipment, and manpower to inspect all major roads after installing these devices, but there is a limitation that the devices used are all expensive.

Therefore, the method of acquiring road surface information through the rear camera 55 as described above has a very significant 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 photo or video is taken through the rear camera 55. Using a photo or video analysis device, the road surface that needs to be repaired can be determined using the captured photo or video information, the size or depth of the pothole is inferred, the risk of the road surface is analyzed, and multiple vehicles including the second vehicle (07) Information can be transmitted to vehicles. Risk can be analyzed through a simple algorithm, and the size and depth of the pothole, the traffic volume on the road surface, and the average speed of vehicles passing on the road surface can be used as determining factors in the algorithm. When using an analysis device, it may be difficult to distinguish due to shadows, stains, patches, and lighting. However, in cases where reliability is reduced, it is also possible to infer the size or depth of the pothole with the naked eye. Even if inferred with the naked eye, it is obvious that road surface information can be converted into data so that it can be transmitted to multiple vehicles, including the second vehicle 07. Additionally, it has the advantage of being easy to infer because the lanes are photographed together.

Figure 2 shows an example of determining whether or not the road surface is abnormal using the vibration sensor 15 and the speed sensor 25, and then determining whether or not the rear camera 55 is operating at the shooting control module 54 to take pictures. While the vehicle 05 is driving, location information can be obtained from the first GPS module 35, and vibration information generated at the location can be obtained from the vibration sensor 15. The road surface information generator 10 determines that the road surface is abnormal when vibration is detected above a predetermined reference value, and when the vibration is above the reference value, the vehicle 05 progresses through the rear camera 55. The rear 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 standard control unit 95 connected to the road surface management server 70 are further provided. Including, the shooting standard of the shooting control module 54 for the shooting command of the rear camera 55 is that the signal transmitted from the shooting standard control unit 95 is transmitted to the shooting control module 54. It is desirable to include it.

It further includes 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, The shooting standard of the shooting control module 54 for commanding the rear camera 55 to shoot is a signal transmitted from the shooting standard control unit 95 and is transmitted to the shooting control module 54. If the information is continuously acquired to an abnormal point where maintenance is not necessary, the information may not be useful, so it is also desirable to prevent the shooting control module 54 from taking photos when more than a certain number of information is acquired. If the cause of vibration at the abnormal point already obtained is the speed bump 14 rather than the pothole 12, the information is already known through another technology, so there is no need to acquire the same information for a certain period of time. Additionally, even at points where maintenance is required, it is inefficient when information is acquired repeatedly. Even though there is information collected by the first vehicle (or first vehicle 05), there is a possibility that it may be repeatedly collected by other vehicles, so a signal is transmitted from the shooting reference control unit 95 located at a predetermined distance, It is preferable that the transmitted signal be transmitted to the shooting control module 54 through the first wireless communication module 65 and be used as a reference for shooting. The operation of the rear camera 55 is determined by the command of the shooting control module 54.

Additionally, filming standards may require change depending on the situation. As a preferred example, for the sake of information transmission efficiency, there are cases where only information due to large vibrations is transmitted and information on abnormal road surfaces due to small amounts of vibration must also be transmitted.

The information on the amount of vibration and vehicle speed generated by the road surface information generator 10 is transmitted to the first wireless communication module 65 along with the first location information through the first GPS module 35, and is transmitted to the control center 03 through a communication network. ) is transmitted to the road surface management server 70 included in the. At this time, the rear camera 55 is controlled by the shooting control module 54 to capture a rear view, and the resulting photo or video information can be transmitted together. Shooting standards may change as needed. Alternatively, the criteria for determining whether a 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 position of the second vehicle 07 obtained from the second GPS module 37, the road surface suitable for the route of the corresponding location is stored. information is transmitted. The transmitted information is received by the second wireless communication module 67 and transmitted and displayed on the road information display unit 82 so that the driver of the second vehicle 07 can recognize it.

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

The rear camera 55 may include a rear camera unit (not shown). The shooting control module 54 may include one of a control module, a control device, and a control stage. The shooting standard control unit 95 may include a control module that is placed outside the vehicle and transmits and receives wirelessly. The first wireless communication module 65 and the second wireless communication module 67 preferably include a wireless transmission module or a wireless reception module.

Meanwhile, the method for providing road surface information according to the present invention includes the steps of acquiring location information on which a first vehicle is driving, generating road surface information on which the first vehicle is traveling, transmitting the location information and the road surface information, Receiving and storing the transmitted location information and the road surface information, obtaining location information where a second vehicle is driving, receiving the stored road surface information according to a driving path of the second vehicle, It is preferable to include the step of displaying the received road surface information.

In addition, the step of generating the road surface information preferably further includes measuring the amount of vibration of the road surface and measuring the vehicle speed of the first vehicle.

In addition, it is preferable to further include the step of photographing the rear 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.

In addition, preferably, the step of photographing the rear further includes a step of receiving a photographing reference value, and the standard of photographing the rear is determined by a signal received in the step of receiving the photographing reference value.

Meanwhile, the method of providing road surface information to a patient transport vehicle according to the present invention includes the steps of acquiring location information on which a first vehicle drives, generating road surface information on which the first vehicle runs, the location information and the road surface. Transmitting information, receiving and storing the transmitted location information and road surface information, obtaining location information where a patient transport vehicle is traveling, the stored road surface information according to a driving path of the patient transport vehicle. It is preferable to include the step of receiving and displaying the received road surface information.

In addition, the step of generating the road surface information preferably further includes measuring the amount of vibration of the road surface and measuring the vehicle speed of the first vehicle.

In addition, it is preferable to further include the step of photographing the rear 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.

In addition, preferably, the step of photographing the rear further includes a step of receiving a photographing reference value, and the standard of photographing the rear is determined by a signal received in the step of receiving the photographing reference value.

As shown in Figure 3, which is a flowchart of a method for providing road surface information according to another embodiment of the present invention, it includes a step (S32) of acquiring location information where the first vehicle is driving. In addition, the step of generating information on the road surface on which the first vehicle travels includes detecting the speed (S22), measuring the amount of vibration (S12), and determining the road surface as abnormal if the amount of vibration according to the speed is greater than the reference value ( S42), including taking pictures of the rear (S52). Since the first vehicle is in a driving state and the photographed position has passed a certain distance from the abnormal road surface, it is desirable to correct the position value (S34) based on the acquired position information (S32) and the detected speed (S22). . Preferably, the method includes transmitting the location information and the road surface information (S62), and the transmitted location information and road surface information are received and stored in a road management server (S72). In addition, it includes a step (S74) of acquiring location information on which the second vehicle is driving, and the obtained second location information is transmitted to the road surface management server to obtain the stored road surface information according to the driving path of the second vehicle. By transmitting (S76), the road surface information is received by the second vehicle. Preferably, the received road surface information includes a step (S78) of displaying the received road surface information on a display unit included in the second vehicle.

Additionally, the second vehicle includes a patient transport vehicle. There is a need to minimize vibration in vehicles transporting fracture patients, etc., and the above method has the effect of providing information on whether there are abnormalities in the road surface according to the driving route.

Meanwhile, the method for providing road surface information according to the present invention includes the steps of acquiring location information along which the first user terminal moves, generating road surface information along 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, obtaining location information where the second user terminal moves, receiving the stored road surface information according to the driving path of the second user terminal. Preferably, the method includes the step of displaying the received road surface information.

In addition, the step of generating the road surface information preferably further includes measuring the amount of vibration of the road surface and measuring the 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.

In addition, preferably, the step of photographing the rear further includes a step of receiving a photographing reference value, and the standard of photographing the rear is determined by a signal received in the step of receiving the photographing reference value.

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

In Figure 2, based on vibration, abnormal points on the road surface include not only potholes 12 that require repair, but also speed bumps 14 and manholes 16 that do not require repair. Photo or video information that is continuously transmitted from the same point may actually be inefficient information. Therefore, it is desirable to classify and store the location information in the road surface management server 70 based on the acquired location information. This has the effect of being convenient for distinguishing useful information from unuseful information among the information obtained.

Meanwhile, it is desirable to include a recording medium on which a computer-readable program for performing at least one of the above methods is recorded.

Recording media on which programs are recorded include flash memory type, hard disk type, multimedia card micro type, card type memory (for example, SD or XD memory, etc.), RAM (Random Access Memory) SRAM (Static Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory) magnetic memory, magnetic disk , and may include at least one type of storage medium among optical disks.

The rear camera 55 may be a black box. If vibration is detected during an image that is already being shot, it is possible to save or transmit the information along with location information.

At least one of the components of the vibration information generator 10 or the vibration sensor 15 can be manufactured by integrating it with the high-pass terminal.

The road information providing device according to the present invention has the advantage of being inexpensive, so it can be installed in multiple vehicles or can be implemented by monitoring the movement of multiple user terminals. It is desirable to receive a lot of relevant information in real time and manage abnormal road surfaces by location at the control center (03). It is desirable to provide the relevant information to the control center (03) in charge of a certain area so that it can be provided to multiple other vehicles according to their travel routes.

Conventionally, expensive vehicles and personnel had to be mobilized to obtain road surface information, but the first vehicle or first user terminal according to the present invention can be used as any one of a police car, delivery car, school bus, ambulance, commercial vehicle, or logistics vehicle. When applied to one or more vehicles, information is transmitted from vehicles that must be driven anyway, and through this, information is collected in real time from the control center (03), and priorities are set according to location and expected risk level to move the route. It is possible to transmit to a second vehicle, a patient transport vehicle, or a second user terminal. In particular, when the first vehicle is an ambulance, the daily driving volume is high, the probability of detecting abnormal points can be increased by driving in multiple lanes of bus-only lanes and general roads, and the speed is different for emergency cases and general roads, so one vehicle Even if it is installed and passes the same point, the speed is likely to be different, so the possibility of being filmed at either low or high speed increases, making it possible to collect more comprehensive information.

As described above, according to the present invention, abnormal points on the road surface can be obtained quickly and economically without using expensive professional measuring equipment, and accurate information can be transmitted in real time to a third vehicle. There is an advantage to being there.

03 Control Center 15 Vibration Sensor
05 1st vehicle 25 speed sensor
07 2nd vehicle 32 2nd location information acquisition unit
10 Road information generator 55 Rear camera
30 1st location information acquisition department 64 2nd wireless receiver department
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 surface management server 65 1st wireless communication module

Claims (1)

Obtaining, by a road surface information generator, information on the moving location of a school bus; and,
A step of generating road surface information by photographing the rear of the school bus as it moves,
A wireless transmitter transmitting the location information and the road surface information according to the movement path of the school bus; Including,
The step of generating the road surface information further includes a step of providing a shooting reference value, wherein the road surface management server provides a shooting reference value to the road surface information generator connected to a communication network,
A method of providing road safety information to a patient transport vehicle using a school bus, including that the standard for photographing the rear is determined by a signal provided in the photographing reference value providing step.