TRAFFIC MONITORING METHOD BASED ON AERIAL SURVEY DATA
A data processing method includes obtaining location information of a target path, generating a control instruction according to the location information to instruct a mobile platform to move to above the target path, obtaining survey data of the target path collected by a sensor of the mobile platform and determining status information of one or more traffic participants on the target path based on the survey data, and marking a target data fragment in the survey data according to the status information of the one or more traffic participants. Status information of the one or more traffic participants in the target data fragment satisfies a preset status information condition.
1 . A data processing method comprising:
obtaining location information of a target path;
generating a control instruction according to the location information, to instruct a mobile platform to move to above the target path;
obtaining survey data of the target path collected by a sensor of the mobile platform and determining status information of one or more traffic participants on the target path based on the survey data; and
marking a target data fragment in the survey data according to the status information of the one or more traffic participants, status information of the one or more traffic participants in the target data fragment satisfying a preset status information condition.
2 . The method according to claim 1 , wherein marking the target data fragment includes:
determining, from the survey data, a traffic event involving the one or more traffic participants according to the status information of the one or more traffic participants; and
marking a data fragment corresponding to the traffic event in the survey data as the target data fragment.
3 . The method according to claim 2 , wherein a duration of the target data fragment being longer than or equal to an occurrence duration of the traffic event.
4 . The method according to claim 2 , wherein the traffic event is related to the status information condition.
5 . The method according to claim 1 , wherein the one or more traffic participants include one or more of another mobile platform, a pedestrian, or an animal.
6 . The method according to claim 1 , wherein the control instruction further instructs the mobile platform to hover over the target path and/or move over the target path at a preset flight speed.
7 . The method according to claim 1 , wherein the control instruction instructs the mobile platform to move to above the target path in a preset time period.
8 . The method according to claim 1 , wherein the control instruction further instructs the mobile platform to move over the target path in a direction same as or opposite to a movement direction of one of the one or more traffic participants.
9 . The method according to claim 1 , wherein:
the mobile platform is one of a plurality of mobile platforms; and
the control instruction instructs the plurality of mobile platforms to move over the target path.
10 . The method according to claim 9 , wherein the control instruction instructs the plurality of mobile platforms to move to and hover at different locations over the target path.
11 . The method according to claim 9 , wherein the control instruction instructs the plurality of mobile platforms to move to above the target path at different time periods.
12 . The method according to claim 9 , wherein:
the plurality of mobile platforms includes a first mobile platform and a second mobile platform;
the control instruction instructs the first mobile platform to move to above the target path and to move in a direction same as a movement direction of one of the one or more traffic participants; and
the control instruction further instructs the second mobile platform to move to above the target path and to move in a direction opposite to the movement direction of the one of the one or more traffic participants.
13 . The method according to claim 1 , wherein the control instruction further instructs the mobile platform to adjust a sensing direction of the sensor to face the target path.
14 . The method according to claim 13 , wherein the sensor is coupled and mounted at a gimbal of the mobile platform, and the gimbal is configured to adjust the sensing direction of the sensor.
15 . The method according to claim 1 , wherein determining the status information of the one or more traffic participants includes:
preprocessing the survey data; and
determining the status information of the one or more traffic participants based on the preprocessed survey data.
16 . The method according to claim 15 , wherein:
the survey data includes a plurality of frames of image data; and
deviation between any two of the plurality of frames of image data after preprocessing satisfies a preset condition.
17 . The method according to claim 1 , further comprising:
performing target identification on the survey data to obtain one or more targets on the target path;
determining, based on the survey data, location information and speed information of each of the one or more targets; and
generating a traffic flow trajectory of the target path according to the location information and speed information of the each of the one or more targets.
18 . The method according to claim 1 , further comprising:
performing target identification on the survey data to obtain one or more targets on the target path; and
generating a scene map of the target path according to survey data of the one or more targets.
19 . The method according to claim 1 , further comprising:
generating a high-precision map of the target path based on the survey data.
20 . The method according to claim 1 , further comprising:
intercepting the target data fragment from the survey data, and storing the target data fragment.