The best auto tracking device for remote vehicle shutdown

Theauto tracking device can provide the spatial positioning, posture, structural behavior and performance of the moving target. It is a multifunctional and high-precision tracking and measuring method for the moving target. Theauto tracking device consists of a position sensor, a signal processing system, a servo system and a tracking frame, etc. Partial composition.

The algorithm module of theauto tracking device generally provides: target capture,auto tracking device, platform control, electronic image stabilization, image zooming, translation and rotation, and OSD functions.

Introduction to auto tracking device

Theauto tracking device is a system that continuously tracks and measures the trajectory parameters of a moving target. The targets of auto tracking devices are vehicles, ships, airplanes, missiles and satellites moving at a certain speed and acceleration. Theauto tracking device can provide the spatial positioning, posture, structural behavior and performance of the moving target. It is a multifunctional and high-precision tracking and measuring method for the moving target. Theauto tracking device consists of a position sensor, a signal processing system, a servo system and a tracking frame, etc. Partial composition.

The photoelectric tracking system uses light waves higher than microwave frequency as the carrier of information, has strong anti-electromagnetic interference ability, unique night observation function and good battlefield adaptability, etc., in the detection of low observability targets, high resolution Military applications such as target recognition, precision guidance, fire control aiming, flight assistance, and information countermeasures have great potential. The photoelectric tracking system is not only an important supplement to conventional electronic equipment, but also due to its unique performance in night vision, high-resolution imaging, high-precision tracking and guidance, anti-electronic interference, anti-radiation missiles, anti-low-altitude penetration and defense Anti-stealth and other aspects can be alone. The small photoelectric tracking system is generally composed of white light TV, infrared detector, laser rangefinder, servo system, monitoring unit and photoelectric platform. It can detect and track unmanned reconnaissance aircraft, cruise missiles, high-speed fighters, armed helicopters, etc. flying at close range, low altitude (or ultra-low altitude), and provide precise target elements for follow-up equipment such as fire control systems, and use anti-aircraft artillery, etc. Weapons can effectively strike targets. In addition, due to its small size, light weight, and good maneuverability, it is flexible in layout, easy to network, and good in concealment. At the same time, the photoelectric tracking system has strong anti-interference ability, especially strong electronic interference, which makes it effective To make up for the shortcomings of existing radars, it has broad application prospects in the military. In addition to weapons, photoelectric tracking systems have also been widely used in laser communications, astronomical observations, aerial photography, range testing and other fields. In terms of laser communication, the use of laser beams to transmit information can theoretically increase the effective bandwidth of the communication channel by 105 times. Because the information communicated with the laser beam is not easy to be intercepted, and the communication system is not easy to be interfered by human beings, it is very attractive. At the same time, because of the demand for large capacity, mobility and confidential communication, it attracts people to research and develop laser communication. However, whether it can solve the problem of automatic tracking and aiming at both ends of this communication system has almost become the key to whether it can be put into practice. Although the focus of the photoelectric tracking system is different in these fields, the general trend is to develop with high precision, high speed, and strong adaptability. In order to achieve high precision, in addition to high-performance photoelectric sensor elements, a fast, flexible and high-precision servo system is also the key. The conventional tracking and pointing servo system is difficult to meet the requirements in terms of speed, accuracy and anti-interference, so the research on the structure and control scheme of the photoelectric tracking and pointing device has become inevitable.

The TVauto tracking device system uses a visible light TV camera or an infrared camera as a detector. The TV camera raster scans the target image in the field of view and converts the light signal into an electrical signal. The TVauto tracking device is divided into edge tracking, centroid tracking and related tracking according to the different target tracking points. The tracking that takes the position of the first scanned target image as the target tracking point is called edge tracking; after the full scan of the target image, after calculation, the centroid of the target image is calculated as the target tracking point, which is called centroid tracking; the target image between frames is calculated Select the maximum point of the correlation coefficient or calculate the maximum point of the matching function according to the matching algorithm of the target image between frames as the target tracking point, which is called correlation tracking.

A complete photoelectric tracking system consists of an image sensor (such as CCD, or infrared camera, etc.), a two-axis servo platform where the camera is placed, and a tracker. The tracker uses the image of the image sensor to control the position of the platform.

Auto tracking device application scenarios

Airborne photoelectric viewing system

Vehicle photoelectric tracking system

Ship photoelectric tracking system

Automatic video tracking system for rocket launch and aircraft take-off and landing

Border monitoring and tracking system

Automatic video tracking system for other applications

Points of Auto Tracking Device

The design concept of the traditional video target difference taker should be broken through, and platform motion control, sensor field of view and pointing information in the two modes of capture andauto tracking devices should be integrated to predict the target motion, so that the tracking is more reliable and stable. Good universality.

Built-in multiple image enhancement preprocessing algorithms: white hot, black hot, bipolar, moving target detection, etc.

Video capture: The target can be automatically acquired according to its brightness, size, shape ratio, speed, movement direction, etc.

Video tracking: Built-in multiple tracking algorithms and supports multi-target detection and multi-target tracking; intelligent locking and reacquisition algorithms for short-term target loss.

Programmable two-axis platform drive control (PID); support rate and position control.

The FPGA implementation of the algorithm enables the module to have extremely low delay: output deviation or platform motion parameter delay is less than 1 field time (PAL field time is 20ms, NTSC is 16.7ms), can be output synchronously, and can also be output immediately.

Image processing function: Real-time electronic image stabilization with extremely low latency based on scene locking.

OSD function supports standard and user-defined characters and symbols, such as: tracking window, symbol mark, line of sight, status, etc.

Image translation, zoom and rotation functions to correct the influence of the sensor installation position on the video.

It supports cameras with a fixed field of view, a switchable field of view, and a continuously changing (ZOOM) field of view, so that the field of view can be changed or switched in the state of theauto tracking device, and the tracking will not be interrupted due to this.

Compact structure and low power consumption.

Solar auto tracking device

The solarauto tracking device is a device used to track the sun so that the main optical axis of the energy collector is always parallel to the sun's rays. The more commonly used solar flat-plate collectors and evacuated tube collectors are fixed installations. The common shortcoming of these two types of collectors is that the energy density of the sun is low, so the heat collection temperature is relatively low. Generally, it can only provide hot water at 40~70℃, and it is not easy to get high temperature. To increase the energy density, the plane of the energy collector must always be perpendicular to the incident light of the sun, and the sun's light must be focused at the same time. In order to achieve this goal, it is necessary to keep track of the sun in two azimuths of azimuth and altitude during use, so that the energy collector is always aligned with the sun from sunrise to sunset, so as to improve the utilization rate of solar energy.

Solar energy auto tracking device structure

The solarauto tracking device is composed of a sensor, an azimuth tracking mechanism, an altitude tracking mechanism and an automatic control device. The azimuth tracking mechanism is composed of a power supply, an azimuth sensor, an amplifier, and an actuator. The actuator consists of a motor and a transmission gear. The azimuth sensor is composed of a shell and a pair of photodiodes installed in the shell. The height angle tracking mechanism is composed of a height angle sensor, an amplifier, and an actuator. The actuator includes a motor and a transmission rack. A pair of photodiodes of the height angle sensor and the photodiodes of the azimuth angle sensor and the illuminance sensor are installed in a sensor housing, as shown in Figure 3. The control unit is composed of operational amplifiers, transistors and relays, and is connected with the illuminance sensor, the azimuth angle and the height angle sensor and the drive motor.

The sensor part includes tracking sensor and illuminance sensor. The sensor is composed of a shell and 5 2 CU1B photodiodes and a pointing stick installed in the shell. Among them, a pair of azimuth photodiodes (P3P4) are installed symmetrically on both sides of the sun stick A1. It mainly detects the deflection angle of the sun moving from east to west. A pair of photodiodes with an elevation angle and a pair of photodiodes with an azimuth angle form a 90° angle, and the upper and lower (P1P2) are installed symmetrically on both sides of the sun stick A1 to detect the apparent height of the sun. A photodiode of the irradiance sensor is installed on the top of the sun stick to detect the intensity of the sun's radiation. The sensor is installed on the base part parallel to the opening plane of the solar integrator.