32results about How to "Follow implementation" patented technology

The invention relates to a method and device for controlling a balance car. The method for controlling the balance car includes the steps that a target two-dimensional code is scanned through a camera; the target two-dimensional code is arranged on a target; the position of the two-dimensional code is determined according to scanning information of the camera; control information for controlling the driving direction and driving speed of the balance car is generated according to the position of the target two-dimensional code to enable the balance car to follow the target. Thus, the purposes that when the balance car is not used, the balance car can automatically follow the target to move towards the target without being lifted or pushed by a user, and therefore automatic following of the balance car is achieved can be achieved; due to the adoption of the two-dimensional code, a processing program of a processor can be simplified, and the recognition reliability of the target is improved; azimuth information and distance information of the target two-dimensional code are determined according to the rotating angle of the camera and the focal length generated when the target two-dimensional code is scanned, no additional ranging module needs to be added, and cost can be reduced.

The invention discloses a RS232 communication interface circuit that supports hot swapping. The interface circuit uses a high-speed operational amplifier as a core device, and is equipped with corresponding peripheral devices to form a voltage buffer; a three-stage tube is used as an inverter, and the phase is reversed twice consecutively. , obtain the same phase transmission level, and also realize the wide voltage range of the interface circuit, meet the requirements of the RS232 communication frequency band, realize the hot swap of the serial port circuit, and meet the voltage requirements between different devices and different signal levels. The power supply circuit of the interface circuit can follow the input voltage, and can overcome the surge voltage and surge current during the hot swapping process. The invention has high integration degree, small volume, simple circuit connection mode and low failure rate. In the case of failure, it can also facilitate fault detection and analysis, and troubleshoot and repair. The invention can be used in the transmission of different signal levels of each RS232, and has level conversion, signal buffering, hot plug function and high reliability.

The invention discloses an automatic following method of radiological image equipment. The method comprises the steps of: obtaining a detector angle value; determining a handpiece target angle value corresponding to the detector angle value, wherein the target angle value is equal to the sum of the detector angle value and a preset value; and controlling a handpiece to carry out following motion to achieve the target angle. A synchronous following motion of the handpiece or a detector is realized when the angle of the detector or the handpiece in the radiological image equipment changes, the included angle of the X ray direction and the front surface of the detector is unchanged, and the method guarantees that the radiological image equipment is flexible in application and good in shooting effect.

The application discloses a robot following method, device and system. By separating and identifying the sound source of the sound signal in the environment, it is determined whether the sound signal matching the target pedestrian is included in the environment. The voice of the target pedestrian can be followed, and the position of the target pedestrian can be determined without obtaining the image of the target pedestrian through the camera, which protects the privacy of the user and improves the user experience.

The invention discloses an aerial shooting electronic device of a multi-rotor aircraft. The aerial shooting electronic device comprises a first locating receiver used for instantly locating the geographical position of the multi-rotor aircraft, an aircraft control chip connected with the first locating receiver, a first transceiver antenna connected with the aircraft control chip, a motion camera used for aerial shooting, a second locating receiver used for instantly locating the geographical position of a remote controller, a main control chip connected with the second locating receiver, a second transceiver antenna connected with the main control chip, and a mode selection switch used for switching the aerial shooting state. An aircraft controller controls the first locating receiver to acquire the geographical position information of the aircraft controller, the geographical position information is sent through the first transceiver antenna to the second transceiver antenna to enable the main control chip to acquire and judge the position information and control the multi-rotor aircraft to fly toward the geographical position of the remote controller, and multiple times of aerial shooting are carried out in the flying process. The invention further discloses a multi-rotor aircraft electronic control device and an aerial shooting following multi-rotor aircraft.

The present invention provides a method for identifying and following a target, comprising: acquiring video data around the vehicle; performing feature extraction on a single frame / or multi-frame image information to determine features to be matched; The facial features in the feature library are matched to determine the first matching degree; and / or, the suspicious item features are matched with the item features in the preset second feature library to determine the second matching degree and determine the suspicious object; The image information corresponding to the suspicious object determines the state and path of the suspicious object; when the state of the suspicious object is moving, a follow command is sent to the follow device on the vehicle so that the follow device follows the suspicious object; the follow command includes waiting Among the matching features, the successfully matched suspect face features and / or the successfully matched suspicious item features and paths. In this way, the follow-up of suspicious objects is realized without affecting the current work.

The present invention relates to the field of robots, in particular to a method and device for a robot to follow a person, a storage medium, and a robot. The method includes: detecting a target person through a somatosensory detector installed on the robot, and obtaining the location of the target person in the original coordinate system. Under the relative coordinates relative to the robot; according to the first world coordinates of the robot in the world coordinate system, the relative coordinates are converted into the second world coordinates of the target character in the world coordinate system; according to the random expansion tree algorithm and The evaluation function based on the A* algorithm calculates and screens the intermediate nodes of the randomly expanded tree; when the distance between the intermediate nodes and the second world coordinates is within a preset range, the intermediate nodes are sequentially connected to form a target path, and the control of the The robot moves from the first world coordinate to the second world coordinate along the target path in a world coordinate system.

The present invention provides a robot following method, a robot and a storage medium. The method includes: detecting a followed body and determining the position of the followed body; acquiring the angle and real-time distance between the robot and the followed body; Determine the rotational angular velocity of the included angle of the robot according to the included angle between the robot and the followed object, and according to the real-time distance between the robot and the followed object and the fixed following that the robot will maintain Distance determines the translational linear velocity at which the robot translates towards the follower. In the present invention, wherever the user goes, the robot will follow there, which is convenient for the user to interact with the robot in time, so that the robot can transform from passive interaction with people to active interaction with people, which can enhance entertainment and enhance the ability to perceive the surrounding environment. Provide a good experience.

The invention discloses a full-automatic intelligent following luggage car capable of achieving following operation according to a given trajectory. The full-automatic intelligent following luggage car comprises a luggage car body and a following system. The luggage car body comprises a main car body and a roller device arranged on the lower portion of the main car body and distributed in a triangle mode. The roller device is composed of a drive wheel arranged on the front of the lower portion of the main car body, and driven wheels symmetrically arranged on the two sides of the rear side of the lower portion of the main car body. A drive mechanism is arranged inside the main car body. The following system comprises a signal emitting device and a signal receiving device. The signal receiving device is sequentially connected with a central processor and a logic arithmetic unit. The logic arithmetic unit is connected with the drive mechanism and a steering mechanism. By adopting the following system to control movement of the main car body, following of the luggage car and a user is achieved on the premise that the user does not perform any operation on the luggage car, and troubles and labor waste caused by purely manual pushing of the car are avoided.

The present invention relates to the field of computer vision recognition, and specifically provides a method for following a target object of a mobile robot based on a monocular vision sensor, aiming to solve the problem that the existing mobile robot has poor robustness in following the target object, and it is difficult to ensure the following target objects such as pedestrians quality problem. For this purpose, the method that the present invention provides comprises that mobile robot acquires the image of the target object according to the target area of ​​the target object; Obtain the feature matrix of the image of the target object; Utilize the target tracking algorithm and the feature matrix to determine the center point of the target object; According to the center point and the outline frame of the target object to determine the area where the target object is located as the first area, judge whether the proportion of the area of ​​the first area in the image of the target object is greater than a set threshold, and perform corresponding operations according to the judgment result. Based on the above steps, the method provided by the present invention has good real-time performance and robustness, and can effectively follow the target object.

The invention provides a suspension follower stabilized power supply circuit, the circuit structure is simple, the area and power consumption of the LDO module chip are relatively small, and the circuit can be realized by conventional technology, which can greatly reduce the circuit cost and improve the stability of the circuit And reliability, which includes: reference circuit, operational amplifier, MOS tube, input power supply VDD, negative feedback module, the power supply terminal of the reference circuit, the power supply terminal of the operational amplifier, the substrate and the source terminal of the MOS tube are all connected to the input power supply VDD, The output terminal of the reference circuit controls the same-inverting input terminal of the operational amplifier, and the negative input terminal of the operational amplifier is connected to the output of the negative feedback module. The voltage between the ground terminal of the operational amplifier and the ground terminal of the reference circuit is determined by the drain terminal of the MOS transistor and the negative feedback module Output voltage control, the output terminal of the operational amplifier controls the input voltage of the negative feedback module and the gate terminal of the MOS tube.