TWI809746B - Road warning system and road warning method - Google Patents

Abstract

A road warning system and a road warning are provided. The road warning system includes a monitoring module, a cloud module, and a warning module. The monitoring module includes a housing, a plurality of image detection units, and a wireless transmission unit. The image detection units respectively have a photographing path. Each of the image detection units can obtain an image data on the photographing path, and transmit the photographing path to the cloud module through the wireless transmission unit. The cloud module analyzes the image data to obtain a road length and a moving speed, so as to calculate an arrival time when a target arrives at an intersection. The cloud module sends a warning signal to the warning module when a difference between the arrival times is less than a cognitive response time. Accordingly, the road warning system and road warning method can effectively prevent car accidents at intersections.

Description

Road warning system and road warning method

The invention relates to a warning system, in particular to a road warning system and a road warning method.

With the expansion of roads in recent years, there are convenient roads for driving vehicles in areas such as rural areas and deep mountains. Among them, considering factors such as population density and less traffic flow, many road intersections choose not to set up traffic signals to control vehicle traffic, so as to avoid unnecessary waiting time.

However, drivers often ignore steps such as slowing down and checking incoming cars at intersections lacking the control of traffic signals, and directly pass through intersections quickly, which makes accidents occur at intersections in rural areas and deep mountains. Therefore, how to "pass the intersection without controlling vehicles and avoid traffic accidents at the same time" has become an important issue at present.

Therefore, the inventor believes that the above-mentioned defects can be improved, Naite devoted himself to research and combined with the application of scientific principles, and finally proposed an invention with reasonable design and effective improvement of the above-mentioned defects.

The technical problem to be solved by the present invention is "not controlling vehicles passing through the intersection, and avoiding traffic accidents at the same time", aiming at the deficiencies of the prior art, a road warning system and a road warning method are provided.

The embodiment of the present invention discloses a road warning system, which includes: a monitoring module, including: a housing; a plurality of image detection units arranged in the housing, and each of the plurality of image detection units has a photography path , and each of the image detection units can obtain an image data on its photographing path; and a wireless transmission unit is arranged in the housing and electrically coupled to a plurality of the image detection units, the wireless transmission The unit can transmit multiple image data wirelessly; a cloud module is connected to the wireless transmission unit, and the cloud module includes: a computing unit that can receive multiple image data, and the computing unit analyzes each The image data is used to obtain a road length and a moving speed of a moving object, and calculate the intersection arrival time of the moving object through the road length and the moving speed; and a sending unit, electrically coupled The computing unit, the sending unit sends a warning signal when the difference between the arrival times of any two intersections is less than a cognitive reaction time; and a warning module connected to the cloud model set, the warning module sends out a warning when receiving the warning signal.

The embodiment of the present invention further discloses a road warning method, which is suitable for a road warning system. The method includes the following steps: obtaining a basic image without any moving objects in a plurality of adjacent roads; Comparing the corresponding road with a real-time image of a moving object, thereby obtaining an image data; analyzing the parameter variation in a plurality of the image data to obtain a road length and a movement of the moving object Speed; use the length of the road corresponding to each of the roads and the moving speed to calculate the arrival time at the intersection of the moving target in a plurality of the roads; at the intersection of any two moving targets An alert is issued when the arrival time is less than a cognitive reaction time.

To sum up, the road warning system and the road warning method disclosed in the embodiments of the present invention can obtain the image data on the corresponding photography path through "a plurality of the image detection units" and " The cloud module sends the warning signal to the warning module when the difference between the arrival times of any two intersections is less than the cognitive reaction time, so as to issue the warning" The design enables vehicles traveling on the road to be notified immediately by the warning whether there are other vehicles passing through the intersection of the road at the same time, so as to slow down in advance. In order to achieve the effect of "not controlling vehicles passing through the intersection, and at the same time avoiding traffic accidents".

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the provided drawings are only for reference and description, and are not intended to limit the present invention.

100, 100': road warning system

1: Monitoring module

11: Housing

12: Image detection unit

13: Wireless transmission unit

2: Cloud module

21: Operation unit

22: Sending unit

23: Ambulance notification module

24: Record unit

3, 3': warning module

31: Wireless receiving unit

32, 32': warning unit

33: Push unit

34: push broadcast receiving unit

S101~S113: steps

S1091: sub-step

FIG. 1 is a circuit block diagram of a road warning system according to a first embodiment of the present invention.

FIG. 2 is a three-dimensional schematic diagram of the monitoring module according to the first embodiment of the present invention.

FIG. 3 is a schematic diagram of a state when the warning unit sends out a warning according to the first embodiment of the present invention.

FIG. 4 is a circuit block diagram of another aspect of the road warning system according to the first embodiment of the present invention.

FIG. 5 is a schematic diagram of a state of an alarm unit when an alarm is issued according to another aspect of the first embodiment of the present invention.

FIG. 6 is a schematic flowchart of a road warning method according to a second embodiment of the present invention.

FIG. 7 is a schematic diagram of the sub-steps of the road warning method according to the second embodiment of the present invention.

FIG. 8 is a schematic flowchart of a road warning method in another form according to the second embodiment of the present invention.

The following is to illustrate the relevant "road" disclosed by the present invention through specific specific embodiments. Warning system and road warning method", those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments. Item details can also be based on different viewpoints and applications, and various modifications and changes can be carried out without departing from the concept of the present invention. In addition, the accompanying drawings of the present invention are only simple schematic illustrations, and are not described in accordance with actual dimensions, and are stated in advance. The following The embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention.

It should be understood that although terms such as "first", "second", and "third" may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one element from another element, or one signal from another signal. In addition, the term "or" used herein may include any one or a combination of more of the associated listed items depending on the actual situation.

In addition, in the following description, if it is pointed out that please refer to the specific drawing or as shown in the specific drawing, it is only used to emphasize in the subsequent description, and most of the relevant content described above appears in the specific drawing , but does not limit the subsequent description to only those specific drawings that may be referred to.

[first embodiment]

1 to 3, the present embodiment provides a road warning system 100, the road warning system 100 is suitable for warning vehicles to and from road intersections, so that vehicles can pass through the intersection without being controlled (such as : stopped by red light), also can allow vehicles to pass through the intersection smoothly, so as to avoid the possibility of traffic accidents. In other words, any warning system that "indicates that the vehicle is moving after stopping" is not the road warning system 100 referred to in the present invention. Next, the components of the road warning system 100 and their connections are introduced as follows.

As shown in Figures 1 and 2, the road warning system 100 includes a monitoring module 1, a cloud module 2 connected to the monitoring module 1, and a warning module 3 connected to the cloud module 2 . Wherein, the monitoring module 1 is used to be arranged at the center of an intersection (for example: intersection the center of the three-way intersection), and the monitoring module 1 in this embodiment includes a housing 11, and a plurality of image detection units 12 and a wireless transmission unit 13 arranged in the housing 11 .

The housing 11 is made of a pressure-resistant and reflective material, and the housing 11 has an opening in a plurality of travel directions toward its location, for example: the housing 11 located at a two-way intersection There are four said openings. In practice, the casing 11 is designed so that its overall structure can be adjusted according to the environment, so the material, number of openings and structure of the casing 11 are not particularly limited.

Each of the image detection units 12 is a CCD camera or an IR camera in this embodiment, and is configured at the position of the aforementioned opening, so that each of the image detection units 12 can face the direction of travel through the opening and have a photographing path, and each of the image detection units 12 can obtain an image data on its photographing path.

It should be noted that the number of image detection units of the monitoring module 1 is adjusted according to the direction of travel in practice, but in principle, the position of the monitoring module 1 is used as the intersection point, and it will move towards the aforementioned intersection point. The number of the image detection units 12 is designed based on the number of moving directions.

The wireless transmission unit 13 is electrically coupled to a plurality of the image detection units 12 , and the wireless transmission unit 13 can wirelessly transmit a plurality of the image data to the cloud module 2 . In practical application, the wireless transmission unit 13 preferably adopts a 5G communication chip, and can transmit and receive with the cloud module 2 through the surrounding telecommunication base stations, but the present invention is not limited thereto.

As shown in FIG. 1 , the cloud module 2 in this embodiment includes a computing unit 21 and a sending unit 22 electrically coupled to the computing unit 21 . Wherein, the computing unit 21 in this embodiment is a chip with computing and receiving functions (for example: a CPU and a network chip integration device), and can receive a plurality of the image data. The computing unit 21 can analyze each of the shadows image data to obtain a road length and a moving speed of a moving object (for example: a moving vehicle), and calculate an intersection arrival time of the moving object through the road length and the moving speed.

In practical application, the computing unit 21 will obtain a basic image without any moving object within the plurality of roads (ie, the plurality of travel directions) as a reference parameter. Wherein, each of the basic images may be acquired through an image acquired by the image detection unit 12 in a time interval, or established by pre-shooting, which is not particularly limited here.

The calculation unit 21 can compare and analyze the basic image corresponding to the same road and a real-time image in the image data, so as to obtain the length of the road and the moving speed of the moving object. Accordingly, after the calculation unit 21 has the road length and the moving speed of each of the roads, it can further calculate that the moving target moves to the intersection (or where the monitoring module 1 is located). location), that is, the intersection arrival time. Certainly, in order to reduce the calculation load of the calculation unit 21 , the designer may also pre-establish a relationship parameter between the image captured by the image detection unit 12 and the road length.

It should be noted that the operation unit 21 utilizes the basic image and the real-time image to perform image analysis and calculation and obtain the road length, the moving speed, and the arrival time at the intersection are existing technologies (for example: YOLO image analysis and recognition technology), and is not the technical focus of the present invention, so it will not be introduced in detail here.

When the difference between the arrival times of any two intersections by the sending unit 22 is less than a cognitive reaction time, the sending unit 22 sends a warning signal to the warning module 3, so that the warning module 3 An alert is issued when the alert signal is received (as shown in FIG. 3 ).

In practice, the cognitive reaction time is the time required for a person to "see danger", "conscious command action", and "execute action". According to existing research statistics, the cognitive reaction time The cognitive reaction time is preferably designed to be 5 seconds, but the cognitive reaction time can be appropriately adjusted according to steep road sections and environmental conditions, and is not limited here.

In addition, in order to facilitate the understanding of the sending unit 22, an exemplary example will be used below for illustration, but the present invention is not limited thereto. Assume that at a one-way intersection, there is a first vehicle moving toward the location of the monitoring module 1 along a north-to-south direction, and the calculation unit 21 has calculated that the first vehicle is at a first time point The intersection arrival time is 20 seconds; there is another second vehicle moving toward the position of the monitoring module 1 along the direction of travel from west to east, and the calculation unit 21 has calculated that the second vehicle is in the The intersection arrival time at the first time point is 30 seconds.

As shown in Figure 3, if the driving of the second vehicle increases its vehicle speed in the last 3 seconds (that is, the second time point), the arrival time of the second vehicle at the intersection at the second time point is again Reduced by 6 seconds, that is, the arrival time of the second vehicle at the intersection at the second time point is adjusted to 21 seconds (21 seconds=30-3-6), at this time (the second time point) the The arrival time of the first vehicle at the intersection is 17 seconds (17 seconds=20-3) without changing the vehicle speed. Therefore, the sending unit 22 will detect that the difference (ie, 4 seconds) between the arrival times of the two intersections at the second time point is less than the cognitive reaction time, thereby further using the wireless communication technology (for example: 5G communication) sending the warning signal to the warning module 3 .

After the warning module 3 receives the warning signal, the warning mode issued by the warning module 3 can have various implementation styles, which are as follows: In one embodiment, as shown in Figure 1 and As shown in Figure 3, the warning module 3 can be used to be arranged around the intersection, and the warning module 3 includes a wireless receiving unit 31 and a warning unit electrically coupled to the wireless receiving unit 31 32. The wireless receiving unit 31 can receive the warning signal through wireless communication, and further instruct the warning unit 32 to emit the warning in the form of light or sound. Accordingly, the person driving the vehicle approaching the intersection can be notified by the warning in the form of light and sound, so as to slow down the vehicle speed. Among them, the warning shown in Figure 3 is presented in the form of light projection. now.

In another embodiment, as shown in Fig. 4 and Fig. 5, the warning module 3' includes a push unit 33, a plurality of push receiving units 34 and a plurality of warning units 32'. The push broadcast unit 33 is used to be arranged around the intersection, and when the push broadcast unit 33 receives the warning signal, the push broadcast unit 33 can use push broadcast technology to push a push broadcast within a predetermined distance. broadcast signal. A plurality of the push broadcast receiving units 34 and a plurality of the warning units 32 are each used to be arranged on the vehicle (for example: the vehicle on the vehicle is integrated into a system), and the push broadcast receiving units located on the same vehicle The unit 34 and the warning unit 32' are electrically coupled to each other. When each of the push broadcast receiving units 34 moves with the vehicle it is set on and is located within the predetermined distance of the push broadcast unit 33, each of the push broadcast receiving units 34 can receive the push broadcast signal, making it The corresponding warning unit 32 can be commanded to issue the warning, so as to inform the personnel of the corresponding vehicle to slow down the speed of the vehicle.

Preferably, the predetermined distance satisfies the relational expression: L=K/2. Wherein, the predetermined distance is L (meter), and the largest one of the plurality of moving speeds is K (kilometer/hour). Specifically, the predetermined distance can just ensure that the vehicle has a sufficient safety distance to be decelerated (even braked) by people when the aforementioned relational expression is satisfied, so the predetermined distance is determined by a plurality of image detection units 12. The fastest vehicle in the shooting range is used as the standard for the farthest push range, which means that the predetermined distance is adjusted according to the speed of the vehicle around the monitoring module 1, which can effectively reduce meaningless (or invalid) push object.

In addition, in a further embodiment of the road warning system 100, the computing unit 21 can also analyze each of the images in order to provide immediate ambulance in the event of a car accident caused by people ignoring the warnings. data to obtain a location of the moving object. The sending unit 22 sends an accident signal to the cloud when any two of the locations are within a critical range and the difference between the corresponding intersection arrival times is zero. An emergency notification module 23 (as shown in FIG. 4 ) of the module 2 enables the emergency notification module 23 to notify nearby ambulance unit.

In practice, the critical range is preferably smaller than the predetermined distance, which means that the critical range is designed as a critical point where "the vehicle does not have a sufficient safety distance to slow down its speed to avoid a collision" (or brake). Therefore, the critical range will also be adjusted with the fluctuation of the predetermined distance, which enables the sending unit 22 to accurately send the accident signal to the rescue notification module 23 when a car accident occurs.

In addition, in order to objectively clarify the cause of the accident and the rate of liability for the accident after a car accident occurs. Therefore, in a preferred embodiment, the sending unit 22 can also simultaneously send a record signal to a record unit of the cloud module 2 (as shown in FIG. 4 ) when sending the accident signal, so that the record The unit 24 stores the image data of each of the image detection units 12 , so that the police officers can check the actual situation when the accident occurred through the recording unit 24 .

Furthermore, in practice, the sending unit 22 can also send an overspeed signal to the recording unit 24 of the cloud module 2 when any one of the moving speeds is greater than an overspeed threshold, so that the recording unit 24 The image data corresponding to the moving speed greater than the speeding threshold is stored, so as to be used by police officers to ban speeding vehicles through the recording unit 24 .

In addition, it is worth noting that although the above described object is described in terms of the relationship between vehicles, in practice, the applicable object of the road warning system 100 of the present invention can also be between vehicles and pedestrians, for example: the The monitoring objects of the monitoring module 1 are pedestrians and vehicles, and the final warning issued by the warning module 3 is to notify the pedestrian's mobile device and the vehicle's vehicle.

In addition, the currently stored data can be modified in a specific way (for example: the cloud module 2 is maliciously invaded and the image data is tampered with), so the road warning system 100 of the present invention can be combined with blockchain technology, So as to achieve the effect of decentralization. That is to say, anyone can access the image database of the road warning system 100, so that subsequent Controversial events can approach facts and objectivity.

[Second embodiment]

As shown in Figures 6 to 8, it is the second embodiment of the present invention. This embodiment provides a road warning method, which is applicable to the road warning system 100 of the first embodiment, so please cooperate timely The content shown in Figure 1 to Figure 5. Of course, the method can also be applied to other road warning systems.

As shown in FIG. 6 , the method includes steps S101 to S109 , but in actual application, one of the above steps S101 to S109 can be omitted or replaced with a reasonable variation depending on the designer's needs.

Step S101 : Obtain a basic image without any moving objects in a plurality of adjacent roads.

Step S103 : Using a plurality of the basic images to compare with a real-time image corresponding to the road and having a moving object, so as to obtain an image data.

Step S105: Analyzing parameter variations in a plurality of image data to obtain a road length and a moving speed of the moving object.

Step S107: Using the road length and the moving speed corresponding to each of the roads, calculate the intersection arrival time of the moving objects in the plurality of roads.

Step S109: Sending out an alert when the intersection arrival time of any two moving objects is less than a cognitive reaction time.

More specifically, as shown in Figure 7, the step S109 in this embodiment also includes a sub-step S1091: push a push signal, so that multiple warning units 32 within a predetermined distance can each send out the warning. Of course, the sub-step S1091 can be adjusted or omitted as appropriate.

In another embodiment, as shown in FIG. 8, the method further includes the following steps after step S109:

Step S111: Analyze the road length and the moving speed corresponding to each of the roads to obtain a location of a plurality of moving objects.

Step S113: When any two of the locations are within a critical range and the difference between the corresponding arrival times at the intersection is zero, an ambulance notification is sent to notify the adjacent ambulance unit; wherein, the critical The range is less than the predetermined distance.

[Technical effects of the embodiments of the present invention]

To sum up, the road warning system and the road warning method disclosed in the embodiments of the present invention can obtain the image data on the corresponding photography path through "a plurality of the image detection units" and " The cloud module sends the warning signal to the warning module when the difference between the arrival times of any two intersections is less than the cognitive reaction time, so as to issue the warning" design, so that driving in the Vehicles on the road can be immediately notified by the warning whether other vehicles pass through the intersection of the road at the same time, so as to slow down in advance. In order to achieve the effect of "not controlling vehicles passing through the intersection, and at the same time avoiding traffic accidents".

The content disclosed above is only a preferred feasible embodiment of the present invention, and does not therefore limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.

S101~S109: steps

Claims (10)

A road warning system, comprising: a monitoring module, including: a casing; a plurality of image detection units arranged in the casing, each of the plurality of image detection units has a photographing path, and each of the The image detection unit can obtain an image data on its photographing path; and a wireless transmission unit is arranged in the casing and electrically coupled to a plurality of the image detection units, and the wireless transmission unit can wirelessly transmit multiple a plurality of image data; a cloud module connected to the wireless transmission unit, the cloud module includes: a computing unit capable of receiving a plurality of image data, and the computing unit analyzes each of the image data to obtain Obtaining a road length and a moving speed of a moving object, and calculating an intersection arrival time of the moving object through the road length and the moving speed; and a sending unit, electrically coupled to the computing unit, When the difference between the arrival times of any two intersections of the sending unit is less than a cognitive reaction time, the sending unit sends out a warning signal; and a warning module connected to the cloud module, the warning The module issues an alert when receiving the alert signal. The road warning system as described in claim 1, wherein the warning module includes: a push unit, which pushes a push signal when receiving the warning signal; multiple push receiving units and multiple warnings Units, each used to be arranged on a vehicle, each of the push receiving units can receive the push signal when it is close to the push unit at a predetermined distance; when each of the push receiving units receives the When pushing the signal, the warning sheet corresponding to each push receiving unit command Yuan issued the said warning. The road warning system as described in claim 2, wherein the predetermined distance satisfies the relational expression: L=K/2; the predetermined distance is L (meter), and the largest one of the plurality of moving speeds is K (km/h). The road warning system according to claim 3, wherein, the computing unit analyzes each of the image data to obtain a location of the moving target; the sending unit is located at a critical point at any two of the locations When the difference between the arrival times of the corresponding crossings is zero, the sending unit sends an accident signal to an ambulance notification module of the cloud module, so that the ambulance notification module can Notifying adjacent ambulance units; wherein, the critical range is smaller than the predetermined distance. The road warning system as described in claim 4, wherein the sending unit also sends a recording signal to a recording unit of the cloud module when sending the accident signal, so that the recording unit stores each of the images The image data of the detection unit. The road warning system according to claim 1, wherein, when any one of the moving speeds of the sending unit is greater than an overspeed threshold, the sending unit sends an overspeed signal to a recording unit of the cloud module, The recording unit stores the image data corresponding to the moving speed greater than the overspeed threshold. The road warning system according to claim 1, wherein the warning module includes: a wireless receiving unit capable of receiving the warning signal through wireless communication; and a warning unit electrically coupled to the wireless receiving unit , the warning unit is at When the wireless receiving unit receives the warning signal, it emits the warning in the form of light or sound. A road warning method, suitable for a road warning system, the method includes the following steps: obtaining a basic image without any moving objects in a plurality of adjacent roads; using a plurality of the basic images to compare the corresponding The road has a real-time image of a moving object, so as to obtain an image data; analyze the parameter variation in a plurality of the image data to obtain a road length and a moving speed of the moving object; use the corresponding The road length and the moving speed of the road calculate the intersection arrival time of the moving objects in a plurality of the roads; the intersection arrival time of any two moving objects is less than a cognitive response A warning is issued at the time. The road warning method according to claim 8, wherein, in the process of issuing the warning when the intersection arrival time of any two moving targets is less than the cognitive reaction time, the method further includes the following steps: Play a push signal, so that a plurality of warning units within a predetermined distance can each issue the warning; wherein, the predetermined distance satisfies the relational formula: L=K/2; the predetermined distance is L (meter), The maximum one of the plurality of moving speeds is K (kilometer/hour). The road warning method according to claim 8, wherein the method further includes the following steps: analyzing the road length and the moving speed corresponding to each of the roads to obtain Obtain a location of a plurality of moving objects; when any two of the locations are within a critical range and the difference between the corresponding intersection arrival times is zero, an ambulance notification is sent to notify neighbors ambulance unit; wherein, the critical range is less than the predetermined distance.

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