TWI804175B - Traffic signal system having intelligent detection and warning functions - Google Patents

Abstract

Present invention discloses a traffic signal system having intelligent detection and warning functions and a control method thereof. The signal system includes: a traffic signal device, a pedestrian signal device, a signal controller, and a smart detection module; the smart detection module includes first detection module and the second detection module, the first detection module and the second detection module respectively arranged at opposite ends of the pedestrian crossing to detect pedestrians and their traveling directions in the first detection area and the second detection area; the first detection module and the second detection module having a first camera device, a second camera device, and a first radar device and a second radar device; the first detection module and the second detection module configured to identify pedestrians in the first detection area and the second detection area through the first camera device and the second camera device, and identify the pedestrians direction through the first radar device and the second radar device.

Description

Signal system with intelligent detection and warning functions

Related applications

The present invention claims the domestic priority of Taiwan Patent Application No. 110102643 (application date: January 25, 2021), and the complete content of the application is incorporated as a part of the patent specification of the present invention for reference.

The invention relates to a traffic and pedestrian traffic signal, in particular to a signal system with intelligent detection and warning functions arranged on a pedestrian crossing of a road.

In the existing road traffic signals, a signal controller is usually used to control a pedestrian signal device and a traffic signal device, wherein the pedestrian signal device can display lights used to control the state of a crosswalk (for example: red lights and Green light signal), while the traffic signal device is linked with the pedestrian signal device. When the pedestrian signal device displays a green light signal, the traffic signal device displays a red light to prohibit vehicles from crossing the pedestrian crossing to maintain pedestrian safety. .

Existing traffic signals only use light signals to control the passing status of vehicles or pedestrians, so it is impossible to control or warn vehicles or pedestrians who do not obey the traffic signals. And the time that existing traffic signal shows red light or green light is fixed, can't adjust according to the actual situation of the flow of people on the crosswalk. And now because of the popularization of smart phones, the number of people who bow their heads is increasing day by day. Pedestrians often enter the crosswalk without noticing that the pedestrian signal device is in a red light state. Cause danger, and existing traffic signal can't reach the effect of reminding and warning pedestrians.

At present, some traffic signals try to use camera devices to capture images of traffic gateways, and use image recognition methods to identify traffic flow or people flow, which is used as a basis for the signal system to control switching and displaying lights, or to adjust the time of displaying lights. However, the existing image recognition methods are likely to affect the recognition accuracy due to weather factors, such as heavy rain, and cause malfunctions.

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 to provide a signal system with intelligent detection and warning functions by improving the defects of existing traffic signals.

In order to solve the above problems, an embodiment of the present invention provides a signal system with intelligent detection and warning functions, which includes: a traffic signal, the traffic signal includes at least one pedestrian signal device, and is connected to at least one of the The signal controller of the pedestrian signal device, the signal terminal control unit, and the signal terminal communication unit; at least one of the pedestrian signal devices is installed on the pedestrian crossing to control the passage of the pedestrian crossing State, the pedestrian signal device can display green light and red light signal to indicate pedestrian traffic status; an auxiliary warning device, the auxiliary warning device is connected to the signal terminal control unit; and a first detection A detection module and a second detection module, the first detection module has: a first camera device, a first radar device, and a first camera device connected to the first radar device The detection module control unit and the first detection module communication unit; the second detection module has: a second camera, a second radar device, and a connection between the second camera and the second radar A second detection module control unit and a second detection module communication unit of the device; the first detection module and the second detection module are respectively adjacent to the pedestrian crossing, and the first detection module A detection module and the second detection module respectively have The first detection area and the second detection area, the detection range of the first camera device and the first radar device of the first detection module covers the first detection area, the second detection area The detection range of the second camera device and the second radar device of the second detection module covers the second detection area; the first detection area and the second detection area can be defined respectively a start end and an end end, the start end of the first detection area is adjacent to one of the entrance ends of the pedestrian crossing, and the start end of the second detection area is adjacent to the pedestrian crossing The other entrance end of the road; the direction of pedestrians in the first detection area and the second detection area is defined as the direction away from the end, and the direction of walking towards the start end is defined as approach direction; wherein, the first detection module and the second detection module can pass through the first detection module communication unit and the second detection module communication unit and the sign terminal communication unit, so that the first detection module and the second detection module communicate with the signal terminal control unit; the first detection module and the second detection module The set is configured to identify pedestrians in the first detection area and the second detection area through the first camera device and the second camera device, and to identify pedestrians in the first detection area and the second detection area through the first radar device and the second The radar device detects the direction of travel of pedestrians in the first detection area and the second detection area; the signal system with intelligent detection and warning functions is configured to display a red light when the pedestrian signal device state, and the first detection module and the second detection module detect that there is a pedestrian entering the first detection area or the second detection area, through the auxiliary The warning device sends out a first warning message.

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.

1: Signal system with intelligent detection and warning functions

2: road

3: Crosswalk

4: Vehicle

5: Safety Island

100: traffic signal

110: Traffic sign device

120: Pedestrian signal device

130: Signal controller

140: Signal terminal control unit

150: Signal terminal communication unit

160: Auxiliary warning device

170: Auxiliary lighting device

200: The first detection module

210: The first camera device

220: The first radar device

230: The first detection module control unit

240: The first detection module communication unit

300: Second detection module

310: the second camera device

320: Second radar device

330: Second detection module control unit

340: Second detection module communication unit

400: Control equipment

410: display unit

411~414: control point

A1: The first detection area

A101: Start end

A102: end

A11: The first entrance warning area

A2: Second detection area

A201: Start end

A202: End

A21: The second entrance warning area

P: Pedestrian

Fig. 1 is provided with the sign system of the present invention with intelligent detection and warning functions 3D illustration of a road and crosswalk.

FIG. 2 is a schematic perspective view of an embodiment of the present invention in which the first detection module or the second detection module is disposed on the pedestrian sign device.

FIG. 3 is a system block diagram of a sign system with intelligent detection and warning functions according to the present invention.

FIG. 4 is a schematic diagram of a method for detecting pedestrians and their traveling direction by the first detection module of the present invention.

FIG. 5 to FIG. 7 are schematic top views of various embodiments of various configurations of the first and second detection modules and the first and second detection areas of the present invention.

FIG. 8 is a schematic diagram of an embodiment of the present invention in which the first detection module and the second detection module are connected to a control device.

9 is a schematic diagram of a method for setting the detection areas of the first detection module and the second detection module through the control screen displayed by the display unit of the control device according to the present invention.

The following is a description of the implementation of the "sign system with intelligent detection and warning functions" disclosed by the present invention through specific specific examples. 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, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only for simple illustration, and are not drawn according to the actual size, which is stated in advance. The following 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. 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.

1 to 2, the embodiment of the present invention provides a signal system 1 with intelligent detection and warning functions, which includes: a traffic signal 100, and a first detection module 200 and a second detection module Measuring module 300.

The traffic signal 100 is set on a road 2 for controlling pedestrians P and vehicles 4 passing through the intersection of the road 2 . The traffic signal 100 includes: a vehicle signal device 110, a pedestrian signal device 120, a signal controller 130, a signal terminal control unit 140, a signal terminal communication unit 150, and an auxiliary warning device 160 , and an auxiliary lighting device 170 .

Wherein, the traffic signal device 110 is installed on a road 2 close to the pedestrian crossing 3 , and is used to control the traveling state of the vehicles 4 on the road 2 . The traffic sign device 110 can at least display a green light signal and a red light signal to indicate the vehicle passing state, and is used to control the vehicle 4 to pass through the crosswalk 3 . The traffic signal device 110 is connected to the signal controller 130 , and the signal controller 130 can also be connected to the signal terminal control unit 140 and the signal terminal communication unit 150 .

The pedestrian signal device 120 is arranged on both sides of the crosswalk 3, and the pedestrian signal device 120 can at least display the green light signal and the red light signal of the pedestrian passing state, so as to control whether pedestrians can pass through the pedestrian crossing. Take the pedestrian crossing 3. The pedestrian signal device 120 is connected to the signal controller 130 .

As shown in Figures 1 to 3, in this embodiment, the auxiliary warning device 160 can be a flat panel display arranged on the pedestrian signal device 120, and the auxiliary warning device 160 can also have a built-in speaker , and can display warning messages or auxiliary messages in the form of images and voice or warning sounds to assist the pedestrian signal device 120 to guide the passing state of the crosswalk 3 .

As shown in Figures 1 and 4, in this embodiment, the auxiliary lighting device 170 can be an LED lighting fixture, the auxiliary warning device 160 can emit light under the control of the signal end control unit 140, and the The light emitted by the auxiliary warning device 160 can cover the crosswalk 3 .

As shown in FIG. 1 and FIG. 2 , the first detection module 200 and the second detection module 300 are respectively disposed adjacent to the pedestrian crossing 3 . Moreover, in this embodiment, the first detection module 200 and the second detection module 300 can be arranged on the signal pole of the pedestrian signal device 120 .

In this embodiment, the first detection module 200 and the second detection module 300 respectively have: a first camera device 210, a second camera device 310, and a first radar device 220 and a second radar device 320, and the first detection module control unit 230, the second detection module control unit 330, and the first detection module communication unit 240, the second detection module communication unit 340. Wherein, the first camera device 210 and the second camera device 310, as well as the first radar device 220 and the second radar device 320 are respectively connected to the first detection module control unit 230, the second Two detection module control units 330, and the first detection module control unit 230 and the second detection module control unit 330 are respectively connected to the first detection module communication unit 240 and the second detection module Group communication unit 340 . The first detection module 200 and the second detection module 300 are used to detect pedestrians P in a first detection area A1 and a second detection area A2 respectively, and the first detection The traveling direction of the pedestrian P in the detection area A1 and the second detection area A2.

The first detection area A1 and the second detection area A2 respectively cover the entrance positions on both sides of the pedestrian crossing 3 and the area close to the center of the pedestrian crossing 3 . For the sake of illustration, the ends of the first detection area A1 and the second detection area A2 close to the entrance of the pedestrian crossing 3 are defined as starting ends A101 and A201, and the first detection area The ends of A1 and the second detection area A2 away from the two entrances of the pedestrian crossing 3 are defined as ends A102 and A202, and walking in the first detection area A1 and the second detection area A2 The travel direction of pedestrians P walking in the direction of the end A102, A202 is defined as the away direction, and the pedestrian P walking in the first detection area A1 and the second detection area A2 is towards the start end A101, The direction in which A201 walks is defined as the approach direction.

In addition, the detection range of the first detection module 200 further includes a first entrance warning area A11 located at the starting end A101 of the crosswalk 3 adjacent to the first detection area A1, and the The detection range of the second detection module 300 also includes a second entrance warning area A21 located at the starting end A201 of the crosswalk 3 adjacent to the second detection area A2.

As shown in FIG. 5 , in this embodiment, the first detection module 200 and the second detection module 300 are disposed at both ends of the crosswalk 3 opposite to each other. And the first detection area A1 of the first detection module 200 is arranged on the side of the pedestrian crossing 3 relative to the first detection module 200, and the second detection module The second detection area A2 of the group 300 is disposed on a side of the crosswalk 3 opposite to the second detection module 300 . In other words, in this embodiment, the first detection module 200 is used to detect the pedestrians entering the crosswalk 3 from the end of the crosswalk 3 opposite to the first detection module 200 Pedestrians P, and the second detection module 300 is used to detect pedestrians P who enter the crosswalk 3 from the end of the crosswalk 3 opposite to the second detection module 300 .

However, the arrangement of the first detection module 200 and the second detection module 300 and the first detection area A1 and the second detection area A2 of the present invention is not limited thereto. For example, in the embodiment shown in FIG. 6 , the first detection module 200 and the second detection module 300 are arranged at both ends of the crosswalk 3 respectively, and the second detection module The first detection area A1 of a detection module is arranged on the side of the crosswalk 3 adjacent to the first detection module 200, and the second detection module 300 The second detection area A2 is configured on a side of the crosswalk 3 adjacent to the second detection module 300 .

Another example is the embodiment shown in FIG. 7 , the first detection module 200 and the second detection module 300 are arranged on a separation island 5 located in the center of the pedestrian crossing 3 , and the The first detection area A1 and the second detection area A2 of the first detection module 200 and the second detection module 300 are respectively arranged on the pedestrian crossing 3 adjacent to the second A detection module 200 and the One side of the second detection module 300 .

It is worth noting that, in this embodiment, the ends A102 and A202 of the first detection area A1 and the second detection area A2 do not exceed the central position of the crosswalk 3, that is, the The positions of ends A102 and A202 of the first detection area A1 and the second detection area A2 do not overlap with each other. However, the present invention is not limited thereto. In other embodiments of the present invention not shown in the figure, the ends A102 and A202 of the first detection area A1 and the second detection area A2 can extend beyond the crosswalk 3 The central position makes the ends A102 and A202 of the first detection area A1 and the second detection area A2 overlap each other.

The technical features and operation methods of the first detection module 200 and the second detection module 300 are further described in detail below. It should be explained first that since the first detection module 200 is similar to the second detection module 300, the following description only uses the first detection module 200 as an example to illustrate its technical features and operation methods. For the technical features and operation methods of the second detection module 300 , please refer to the description of the first detection module 200 .

As shown in FIGS. 2 to 4 , the first detection module 200 can capture the image of the pedestrian P located in the first detection area A1 on the crosswalk 3 through the first camera device 210 , And through the first detection module control unit 230 to identify whether there is a pedestrian P in the first detection area A1 through an image recognition means. The first radar device 220 is a Doppler radar, which can identify the pedestrian P in the first detection area A1 approaching or moving away from the first radar device 220 through the Doppler effect, so as to determine the The traveling direction of the pedestrian P is the moving away direction or the approaching direction. For example, in the embodiment shown in FIG. 1 and FIG. 4 , when a pedestrian P in the first detection area A1 walks in a direction close to the first radar device 220 , it is possible to judge the pedestrian's progress. The direction is an away direction, and when the pedestrian P walks in a direction away from the first radar device 220 , it can be determined that the pedestrian P's traveling direction is an approaching direction.

The first detection module 200 of the present invention can combine image recognition means and radar detection The method detects the position and direction of travel of the pedestrian P in the first detection area A1. Therefore, compared with the crowd identification mechanism used in the existing signal system, the calculation and identification procedures can be simplified, and the pedestrian P can be identified in real time. location and direction of travel information.

The first detection module 200 is configured to communicate with the signal end communication unit 150 through the first detection module communication unit 240 . In particular, in this embodiment, the first detection module communication unit 240 and the signal terminal communication unit 150 can communicate through wireless communication means, so that the detection information of the first detection module 200 It can be transmitted to the signal terminal control unit 140 through wireless transmission. However, the present invention is not limited thereto. In other feasible embodiments of the present invention, the first detection module communication unit 240 and the signal end communication unit 150 can also be connected by wired communication.

The present invention is configured to have a warning mechanism for running a red light. The warning mechanism for running a red light is that when the pedestrian signal device 120 displays a red light, the first detection module 200 or the second detection module 300 When it is detected that a pedestrian crosses the boundary of the sidewalk and enters the first detection area A1 or the second detection area A2, a first warning message can be displayed through the auxiliary warning device 160 to warn the pedestrian not to run a red light . In addition, in the red light warning mechanism of the present invention, when a pedestrian crossing a red light is detected, the auxiliary lighting device 170 can emit flashing light or continuous light on the crosswalk 3 to warn Pedestrians should not run red lights.

In the red light warning mechanism of the present invention, it can also be configured such that when the first detection module 200 detects that there are pedestrians entering the first entrance warning area A11 and there is a pedestrian P, it can pass through the auxiliary The warning device 160 sends out a second warning message, and the second warning message is used to remind the pedestrians in the first entrance warning area A11 to back off, so as to prevent the pedestrian P from getting too close to the road 2 while waiting for a red light, so as to avoid accidents. Danger.

The signal system 1 with intelligent detection and warning functions of the present invention is configured to have a green light signal extension mechanism, and the green light signal extension mechanism is for displaying on the pedestrian signal device 120 When the green light is on, and the remaining seconds of the green light are less than a first critical number of seconds, it can be detected by the first camera device 210 and the first radar device 220 of the first detection module 200 Whether there are pedestrians traveling in the away direction in the first detection area A1. And when the first detection module 200 detects that there are still pedestrians P walking in the direction away from the first detection area A1, the pedestrian signal device 120 can extend the time period for displaying the green light signal. number of seconds, and the traffic sign device 110 synchronously prolongs the number of seconds for the traffic signal device 110 to display a red light signal, so that the traffic signal device 110 has not yet left the first detection area A1 and is walking towards the away direction Pedestrians P have sufficient time to pass through the crosswalk 3 .

More specifically, the green light second extension mechanism of the signal system 1 with intelligent detection and warning functions in the present invention is based on walking in the direction away from the first detection area A1 The first critical time is determined based on the time required for the pedestrian P to pass through the crosswalk 3 at a normal speed. In other words, when the remaining seconds of the green light is lower than the first critical time, if the first detection module 200 detects that there is still a direction towards the first detection area A1 The pedestrian P walking away from the direction means that the pedestrian P has not left the first detection area A1 when reaching the first critical time, so it can be judged that the pedestrian P cannot be in the pedestrian signal device 120 Pass through the crosswalk 3 before the end of the displayed green light signal. Therefore, by prolonging the number of seconds for the pedestrian signal device 120 to display the green light, it is ensured that the pedestrian P has sufficient time to pass through the crosswalk 3 .

The signal system 1 with intelligent detection and warning functions of the present invention is also configured to have a green light crossing warning mechanism, the green light crossing warning mechanism is when the pedestrian signal device 120 displays a green light, and the When the remaining seconds of the green light of the pedestrian signal device 120 is less than a second critical time, the first detection module 200 detects that a pedestrian is about to enter the pedestrian crossing from the first entrance warning area A11 At road 3, a warning message can be sent through the auxiliary warning device 160 to remind pedestrians entering the first entrance warning area A11 to stop and wait for the next green light signal Then go through crosswalk 3.

In more detail, the second critical time is based on the time required for pedestrians to walk through the crosswalk 3 at a normal speed, that is, when the remaining seconds of the green light is lower than the second critical time , it means that pedestrians who are about to enter the crosswalk 3 at this time cannot pass through the crosswalk 3 before the green light ends. The first detection module 200 can identify whether there is a pedestrian entering the first entrance warning area A11 through the image captured by the first camera device 210 , and judge the pedestrian through the first radar device 220 . The pedestrians in the first entrance warning area A11 are going to leave the first entrance warning area A11, or are going to enter the pedestrian crossing 3 from the first entrance warning area A11.

In this embodiment, in the warning mechanism for crossing the green light, the auxiliary warning device 160 uses image messages or text messages, supplemented by voice messages, to remind pedestrians that the remaining seconds of the green light are not enough for pedestrians to pass Crosswalk 3, and instruct pedestrians to wait for the next green light before crossing Crosswalk 3.

In addition, as shown in FIG. 8 and FIG. 9, the first detection module 200 and the second detection module 300 of the present invention can be connected to a control device 400, and the control device 400 can have a display Unit 410 for computers or information equipment. The display unit 410 can display a control screen through which the operator can control the first detection area A1, the first detection area A1, the second detection module 300, The scope of the second detection area A2, the first entrance warning area A11, and the second entrance warning area A21.

More specifically, as shown in FIG. 9, the display unit 410 of the control device 400 can display a control screen, the control screen includes images or images of the road 2 and the crosswalk 3, The operator can select a plurality of control points 411, 412, 413, 414 on the control screen through a pointing device (such as a mouse) to circle the first detection area A1, the second detection area A2, And the scope of the first entrance warning area A11 and the second entrance warning area A21.

[Advantageous Effects of Embodiment]

One of the beneficial effects of the present invention is that the first detection module and the second detection module of the present invention respectively detect the first detection area and the second detection area through image recognition means and radar detection means Pedestrians and their direction of travel can be identified in the red light state, whether there is a pedestrian crossing the red light, or the first detection area and the second detection area can be identified when the remaining seconds of the green light are less than the critical number of seconds Whether there are still pedestrians in the area, and the direction of travel of the pedestrians in the first detection area and the second detection area, to determine whether the pedestrians have enough time to pass through the crosswalk.

Through the above-mentioned technical solution, the present invention can combine the image recognition means and the radar measurement means, so it can accurately and quickly identify whether there is an object in the first detection area and the second detection area without using complex calculations. Pedestrians, and the direction of travel of the pedestrians, and at the same time, the position and direction of travel of pedestrians on the pedestrian crossing can be judged more quickly.

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.

1: Signal system with intelligent detection and warning functions

2: road

3: Crosswalk

4: Vehicle

100: traffic signal

110: Traffic sign device

120: Pedestrian signal device

130: Signal controller

160: Auxiliary warning device

170: Auxiliary lighting device

200: The first detection module

210: The first camera device

220: The first radar device

300: Second detection module

310: the second camera device

320: Second radar device

A1: The first detection area

A101: Start end

A102: end

A11: The first entrance warning area

A2: Second detection area

A201: Start end

A202: End

A21: The second entrance warning area

P: Pedestrian

Claims (14)

A signal system with intelligent detection and warning functions, which is installed on a pedestrian crossing of a road, the signal system with intelligent detection and warning functions includes: a traffic signal, the traffic signal includes at least one line A pedestrian signal device, a signal controller connected to at least one of the pedestrian signal devices, a signal terminal control unit, and a signal terminal communication unit; at least one of the pedestrian signal devices is arranged on the crosswalk , to control the passing state of the crosswalk, the pedestrian signal device can display green light and red light to indicate the passing state of pedestrians; an auxiliary warning device, the auxiliary warning device is connected to the A signal terminal control unit; and a first detection module and a second detection module, the first detection module has: a first camera device, a first radar device, and a first camera device connected to the device and the first detection module control unit of the first radar device and the first detection module communication unit; the second detection module has: a second camera device, a second radar device, and a connection A second detection module control unit and a second detection module communication unit of the second camera device and the second radar device; the first detection module and the second detection module are respectively Adjacent to the pedestrian crossing, the first detection module and the second detection module respectively have a first detection area and a second detection area, and the first detection module The detection range of the first camera device and the first radar device covers the first detection area, and the detection range of the second camera device and the second radar device of the second detection module Covering the second detection area; the first detection area and the second detection area can respectively define a start and an end, and the start of the first detection area is adjacent to the One of the entrances of the crosswalk, the said second detection area The starting end is adjacent to the other entrance end of the pedestrian crossing; the direction in which pedestrians in the first detection area and the second detection area walk towards the end is defined as the away direction, and the direction towards the end is defined as the direction away from the pedestrian. The direction in which the starting end walks is defined as the approach direction; wherein, the first detection module and the second detection module can communicate through the first detection module communication unit and the second detection module The group communication unit is connected to the signal end communication unit, so that the first detection module and the second detection module communicate with the signal end control unit; the first detection module And the second detection module is configured to identify pedestrians in the first detection area and the second detection area through the first camera device and the second camera device, and through the first camera device A radar device and the second radar device detect the direction of travel of pedestrians in the first detection area and the second detection area; the signal system with intelligent detection and warning functions is configured to The pedestrian signal device is in the state of displaying a red light, and the first detection module or the second detection module detects that a pedestrian enters the first detection area or the second detection area When within the area, a first warning message is sent through the auxiliary warning device. The signal system with intelligent detection and warning functions according to claim 1, wherein the detection range of the first detection module also includes the area located at the crosswalk corresponding to the first detection area A first entrance warning area, the detection range of the second detection module also includes a second entrance warning area corresponding to the second detection area located at the pedestrian crossing; the smart detection The signal system with warning function is configured such that when the pedestrian signal device displays a red light, and the first detection module or the second detection module detects that a pedestrian enters the second When entering an entrance zone or the second entrance zone, a second warning message is sent through the auxiliary warning device. The signal system with intelligent detection and warning functions as described in claim 2, wherein Among them, an auxiliary lighting device is also included, the lighting range of the auxiliary lighting device covers the crosswalk, and the auxiliary lighting device is configured so that when the pedestrian signal device displays a red light, and the first detection When the module or the second detection module detects that a pedestrian enters the first detection area or the second detection area, it can emit a warning light to shine on the pedestrian crossing. The sign system with intelligent detection and warning functions according to claim 3, wherein the auxiliary warning device includes a flat-panel display. A signal system with intelligent detection and warning functions, which is installed on a pedestrian crossing of a road, the signal system with intelligent detection and warning functions includes: a traffic signal, the traffic signal includes at least one line a pedestrian signal device, and a signal controller connected to at least one of the pedestrian signal devices, a signal terminal control unit, and a signal terminal communication unit; at least one of the pedestrian signal devices is arranged on the pedestrian crossing, Used to control the passing state of the crosswalk, the pedestrian signaling device can display green and red lights to indicate the passing state of pedestrians; and a first detection module and a second detection module module, the first detection module has: a first camera device, a first radar device, and a first detection module control unit and a first detection module connected to the first camera device and the first radar device Detection module communication unit; the second detection module has: a second camera device, a second radar device, and a second detection module connecting the second camera device and the second radar device The control unit and the second detection module communication unit; the first detection module and the second detection module are respectively adjacent to the pedestrian crossing, the first detection module and the second detection module The two detection modules respectively have a first detection area and a second detection area, and the detection ranges of the first camera device and the first radar device of the first detection module cover the first In the detection area, the second camera device and the second detection module of the second detection module The detection range of the second radar device covers the second detection area; the first detection area and the second detection area can define a starting end and an end respectively, and the first detection area The starting end of the crosswalk is adjacent to one of the entrances of the crosswalk, and the starting end of the second detection area is adjacent to the other entrance end of the crosswalk; the first detection area and the direction in which the pedestrians in the second detection area walk towards the end is defined as the away direction, and the direction in which the pedestrians walk towards the start end is defined as the approach direction; wherein, the first detection module and The second detection module can be connected through the first detection module communication unit and the second detection module communication unit to the signal terminal communication unit, so that the first detection module communicate with the second detection module and the signal terminal control unit; the first detection module and the second detection module are configured to pass through the first camera device and the second detection module Two camera devices identify pedestrians in the first detection area and the second detection area, and detect the first detection area or the second radar device through the first radar device and the second radar device The direction of travel of pedestrians in the second detection area; the signal system with intelligent detection and warning functions is configured to have a green light second extension mechanism, and the green light second extension mechanism is displayed on the pedestrian signal device When the remaining seconds of the green light of the green light are lower than a first critical second, the first detection module or the second detection module detects the first detection area or the second detection area. If there are still pedestrians moving in the direction away from the detection area, the pedestrian signal device can prolong the time for displaying the green light to ensure that they have entered the first detection area or the second detection area Pedestrians can have enough time to pass through the crosswalk. The signal system with intelligent detection and warning functions as described in claim item 5, wherein, the second extension mechanism of the green light is located in the first detection area or the The first critical time is determined based on the time required for pedestrians in the second detection area and walking towards the away direction to pass through the crosswalk. The signal system with intelligent detection and warning functions according to claim 6, wherein the detection range of the first detection module also includes the area located at the crosswalk corresponding to the first detection area A first entrance warning area, the detection range of the second detection module also includes a second entrance warning area located at the crosswalk corresponding to the second detection area. The signal system with intelligent detection and warning functions as described in claim 7 is further configured to have a green light crossing warning mechanism, the green light crossing warning mechanism is when the pedestrian signal device displays a green light, and When the remaining seconds of the green light is less than a second critical time, the first detection module or the second detection module detects that a pedestrian is about to pass through the first entrance warning area or the second When the entrance warning area enters the crosswalk, a warning message can be issued to remind pedestrians entering the first entrance warning area or the second entrance warning area to stop and wait for the next green light to pass The pedestrian crossing. The signal system with intelligent detection and warning functions according to claim 8, wherein the first detection module and the second detection module are based on the time required for pedestrians to pass through the crosswalk The second critical time is determined as a reference. The signal system with intelligent detection and warning functions as described in claim 9, further comprising an auxiliary warning device, when the pedestrian signal device displays a red light, and the first detection module Or when the second detection module detects that a pedestrian enters the first detection area or the second detection area, it sends a first warning message through the auxiliary warning device. The signal system with intelligent detection and warning functions as described in claim 9, further comprising an auxiliary lighting device, the lighting range of the auxiliary lighting device covers the pedestrian crossing, and the auxiliary lighting device is configured to When the first detection module or the second detection module detects that a pedestrian crosses a red light, it sends Flashing light is irradiated on the crosswalk. The sign system with intelligent detection and warning functions according to claim 10, wherein the auxiliary warning device includes a flat-panel display. The signal system with intelligent detection and warning functions according to claim 5, wherein the first detection area is arranged on the side of the pedestrian crossing opposite to the first detection module, so The second detection area is arranged on a side of the pedestrian crossing opposite to the second detection module. The signal system with intelligent detection and warning functions according to claim 5, wherein the first detection area is arranged on the side of the pedestrian crossing close to the first detection module, so The second detection area is arranged on a side of the pedestrian crossing close to the second detection module.

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