System and method for interactive traffic signal control

Abstract

This disclosure proposes an interactive traffic signal control system, comprising an image capturing device and a control server. The image capturing device is used to capture intersection images. The control server receives the current traffic signal status corresponding to the displayed light and the intersection image. The control server includes a pedestrian recognition module and a signal indication module. The pedestrian recognition module is used to identify the first action of a first pedestrian based on the intersection image and generate first action recognition data. The signal indication module is used to generate a first signal indication, based on the signal status and the first action recognition data, under a first condition, to instruct the traffic signal to perform a first signal adjustment, which is then transmitted to the traffic signal to cause the traffic signal to display the corresponding light. The first condition includes: the first action recognition data indicating that the first action is a first specified action.

Claims

1. An interactive traffic signal control system, comprising: an image capturing device for capturing an intersection image, wherein the intersection image includes a first pedestrian and a line crossing; a control server connected to a traffic signal installed at the intersection to receive a signal status corresponding to a light signal currently displayed by the traffic signal, and connected to the image capturing device to receive the intersection image, the control server comprising: a pedestrian recognition module for recognizing a first action performed by the first pedestrian based on the intersection image and generating first action recognition data; and a signal indication module for generating a signal indication for instructing the traffic signal to perform a first signal adjustment of the signal status based on the signal status and the first action recognition data under a first condition, transmitting the indication to the traffic signal and causing the traffic signal to display the corresponding light signal, wherein the first condition includes: the first action recognition data indicating that the first action is a first specified action.

2. The interactive traffic signal control system as described in claim 1, wherein the pedestrian identification module is further configured to identify whether the first pedestrian is a vulnerable pedestrian and generate first vulnerable pedestrian data, and the signal indication module is further configured to generate the signal indication based on the first vulnerable pedestrian data under the first condition; wherein the first condition further includes: the first vulnerable pedestrian data indicates that the first pedestrian is the vulnerable pedestrian.

3. The interactive traffic signal control system as described in claim 1, wherein the intersection image further includes a second pedestrian, and the pedestrian identification module identifies whether the second pedestrian is a vulnerable pedestrian based on the intersection image and generates second vulnerable pedestrian data, and the signal indication module is further used to generate the signal indication based on the second vulnerable pedestrian data under the first condition; wherein the first condition further includes: the vulnerable pedestrian data indicates that the second pedestrian is the vulnerable pedestrian.

4. The interactive traffic signal control system as described in claim 1, wherein the signal indication module is further configured to generate a signal indication that instructs the traffic signal to perform a second signal adjustment of the signal state based on the signal state and the first action identification data under a second condition, wherein the second condition includes: the first action identification data indicating that the first action is a second specified action.

5. The interactive traffic signal control system as described in claim 4, wherein after the first pedestrian performs the first designated action, he performs the second designated action, the traffic signal indication module generates a traffic signal indication to perform the first traffic signal adjustment to the traffic signal state, and then generates a traffic signal indication to perform the second traffic signal adjustment to the traffic signal state. The traffic signal first performs the first traffic signal adjustment and then performs the second traffic signal adjustment to return to the traffic signal state before the first traffic signal adjustment.

6. The interactive traffic signal control system as described in claim 1, wherein when the intersection image further includes a third pedestrian, the pedestrian recognition module generates third action recognition data for the third pedestrian, and the signal indication module, based on the signal status and the third action recognition data, presets the signal indication generated under a third condition to instruct the traffic signal to perform a third signal adjustment that differs from the first signal adjustment, then the signal indication module performs a coordination to select the signal adjustment between the first signal adjustment and the third signal adjustment that provides a higher level of protection for both the first and third pedestrians to generate the corresponding signal indication.

7. The interactive traffic signal control system as described in claim 1, wherein the control server further comprises: a pedestrian positioning module for identifying the location of the first pedestrian at the intersection based on the intersection image and generating location data; and a signal indication module for generating a signal indication based on the location data under a first condition, wherein the first condition further comprises: the location data indicating that the first pedestrian is located at a specific location.

8. The interactive traffic signal control system as described in claim 7, wherein the specific location is the starting point of one of the crossings of the pedestrian crossing.

9. The interactive traffic signal control system as described in claim 1, wherein the signal status includes at least one of a light color, a light pattern, and a light duration.

10. An interactive traffic signal control method, comprising: capturing an intersection image of an intersection using an image capturing device, wherein the intersection image includes a first pedestrian; and performing the following steps using a control server: identifying a first action performed by the first pedestrian based on the intersection image and generating first action identification data; and generating a traffic signal instruction, based on a traffic signal status corresponding to a light currently displayed by a traffic signal installed at the intersection and connected to the control server, and the first action identification data, under a first condition, instructing the traffic signal to perform a first signal adjustment of the traffic signal status, transmitting the instruction to the traffic signal, and causing the traffic signal to display the corresponding light, wherein the first condition includes: the first action identification data indicating that the first action is a first specified action.

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