238 results about "Laser guidance" patented technology

According to some embodiments of the invention a laser directed infrared countermeasures system (hereinafter: “LDIRCM system”) is mountable on a platform. According to some embodiments of the invention, a LDIRCM system may include a plurality of sector units. Each sector unit may include at least one laser unit and a laser guidance module. The laser unit may be adapted to generate a laser beam or laser energy that is intended for jamming a guidance system of a threat. The laser unit may be coupled to the laser guidance module. The laser guidance module may be adapted to steer at least a laser beam generated by the laser unit towards a threat.

The invention discloses an AGV navigation method and device constructed by a laser guidance map. The method comprises the following steps that a topology map, a geometric map and a target terminal point of an AGV of a work area are obtained; positioning information, measured by a laser range finder and a speedometer, of the AGV is obtained, and the positioning information comprises position coordinate and self-positioning pose of the AGV; a global programming path is generated according to the positioning information and the topology map; and a grid map related to the position coordinate of the AGV is obtained according to the positioning information, and an instruction for indicating movement of the AGV is generated according to the global programming path. Real-time navigation of the AGV can be realized by obtaining positioning information of the AGV by the laser range finder and the speedometer, and it is not required to add other navigation guiding material or structure to the work area of the AGV.

A system and a method of performing a frameless image-guided biopsy uses imaging, a six-dimensional robotic couch system, a laser guidance system, an optical distance indicator, and a needle control apparatus. A planning CT scan is made of the patient with stereotactic fiduciary markers to localize and produce digitally reconstructed radiographs. Two stereoscopic images are generated using an imaging device to visualize and identify a target tumor. The images are fused with the digitally reconstructed radiographs of the planning CT scan to process tumor location. The tumor location data are communicated to the movable robotic couch to position the target tumor of the patient at a known isocenter location. A biopsy needle is guided with a laser alignment mechanism towards the isocenter at the determined depth using a needle positioning apparatus and an Optical Distance Indicator, and a biopsy sample of the target tumor is obtained.

The invention relates to an unmanned helicopter automatic landing method based on laser guidance, belonging to the field of unmanned plane flight control. The method is characterized in that a laser transmitter, an airborne laser acquisition device and a flight control system are provided, wherein the laser transmitter is used for landing instructions, the air-borne laser acquisition device is used for acquiring laser spots projected to the ground by the laser transmitter, the flight control system is used for controlling helicopter tracing laser spots according to output signals of the laser acquisition device, so that the unmanned helicopter can gradually approach to the laser spots on the ground according to the instructions and guidance of the laser transmitter and descend to lower height at the same time until automatic landing is completed. According to the method, instructive accuracy of laser can be employed to accurately and conveniently guide the unmanned helicopter to automatically land.

The invention discloses an industrial laser guidance automatic guided vehicle (AGV) double-closed-loop control system and a control method thereof. The system consists of a detection module and a control module and is characterized in that: the detection module consists of an encoder serving as a motor position sensor and a laser scanner serving as an AGV position sensor; the control module consists of a servo driver and an industrial personal computer and is a double-position closed loop control module consisting of an inner position ring and an outer position ring; the inner position ring is a motor intersection angle position ring; the outer position ring is used for reading an AGV position signal by using the laser scanner; the path tracking error of the current position of an AGV is calculated by the AGV position signal fed back from the outer position ring; and the path tracking error is used as the input quantity of the control system. By the system and the method, the independent running function of the industrial laser guidance AGV can be well realized, and the rapidity and the stability of the path tracking of the AGV can be ensured.

The present invention relates to a laser guided and powered directed energy weapon that combines two different lasers to accurately and efficiently deliver a high energy electromagnetic pulse (EMP) to a target at long range. The method uses a high energy laser pulse with relatively long pulse duration focused in air to create a plasma ball which emits an intense EMP. Typically the long pulse duration of high energy lasers would severely limit focal accuracy and effective range because of air pressure variations and pollutants in the atmosphere. However the present invention uses a second ultrafast laser to create a long thin optical plasma filament between the variable location of the plasma ball and the target to act as a stable electrical connection or conducting wire. Consequently EMP can be efficiently channeled to the target via the optical filament, thereby dramatically increasing potential accuracy, range and energy delivery efficiency.

The invention provides an injection-type semi-physical simulation system for a laser-guided missile, and belongs to the technical field of laser-guided missile development. In order to overcome the projection diffuse reflection type defect, the system comprises a simulation platform, a missile guider, a guidance, navigation and control (GNC) system, a target simulation device, a posture simulation device, an acceleration simulation device, a load simulation device and a launch-control device. The simulation platform mainly undertakes building and calculating of all mathematical models and is communicated with other equipment participating in simulation. The missile guider receives a laser signal sent from the target simulation device to form light spot gravity center location information, and a target orientation is supplied to the GNC system through a control area network (CAN) bus network. The GNC system is installed on the posture simulation device. Light emitting from the target simulation device is injected into the missile guider to simulate target movement. The posture of the missile is simulated through the posture simulation device, and the angular motion characteristics of the missile in the air are reproduced. Output of an accelerometer is simulated through the acceleration simulation device. The load simulation device is used for simulating the aerodynamic moment on a steering engine in the flying process of the missile. The launch-control device mainly completes self-checking and confirming of equipment, data loading and launching instructions on the missile.

A search and rescue drone system includes a buoyant body member, a frame attached to the buoyant body member for carrying a motor and propeller, and an electronic array including a camera, GPS, an EPIRB radio distress beacon, and a transmitter/receiver for remote control flying the drone and communicating with an operator. A laser guidance system may provide coordinates for landing near a swimmer in distress. The search and rescue drone may also be programmed to simply fly to the location of an electronic wearable device, like a bracelet, that is worn by a man overboard. In another embodiment, the search and rescue drone includes pivoting motor mounts, so that it can take off and land vertically with propellers rotating in a horizontal plane, and then the propellers may pivot to rotate in a vertical plane for propulsion across water similar to a fan boat with rescued people aboard.

The invention discloses a medical logistics robot system based on visual positioning and a control method thereof. The system comprises a central processor, a communication module, a laser guidance module, a positioning module, an alarm module, a human-computer interaction module, a remote server and an obstacle avoidance module. The central processor receives the transport instruction of the communication module to preliminarily plan the advancing route of the robot and transmits the preliminarily planned route to the laser guidance module to guide the robot to move according to the set route. The advancing route of the robot is secondarily planned according to the received obstacle information of the obstacle avoidance module. The central processor receives malicious harassment information of the alarm module and then transmits surrounding image information and position information of the robot to the remote server through the positioning module. The logistics transport efficiency can be enhanced and the labor cost can be reduced so as to have high efficiency, safety and reliability.

The invention discloses a semi-physical real-time simulation system of a laser guided missile. The system is used for carrying out simulation test on a missile laser guide head, an electric steering engine and a missile guidance control algorithm. The system comprises a signal simulation part used for generating the laser received by a simulation guide head, a motion simulation part used for simulating the relative motion relation between a missile and a target; a test main control part used for running the missile motion simulation software in real time, driving the whole simulation system, monitoring and recording data in the whole test process, and analyzing the data. The method aims to provide an auxiliary design tool for missile designers, so that designers can know problems possiblyexisting in the missile performance and design. The development period of missiles is shortened, and the number of external field flight tests is reduced. The system has better practicability and higher economic benefits.

The invention discloses a device and a method for guiding vehicles in a parking lot based on laser guidance. A laser positioning device on a carport of the device is mounted on each parking place inside the parking lot; a laser positioning device at a terminal end of a linear channel is mounted at the terminal end of each linear channel in the parking lot; a parking place management unit comprises an information storage module, a wireless signal sending/receiving module and a central processor (MCU); the wireless signal receiving module receives information sent by each laser positioning device on the carport and judges whether the carport is idle; the central processor MCU processes and analyzes the information, and stores the information to the information storage module; a laser sending/receiving device in a car receives a signal sent from the laser positioning device at the terminal end of each linear channel; an analysis and processing unit ECU in the car calculates a shortest path to the nearest carport based on the information delivered by the wireless communication device and the laser receiving/sending device.

The invention discloses an intelligent type laser guidance average voltage gain (AVG) forklift and relates to the technical field of forklift manufacture. A main body comprises a forklift box body and a front frame mechanism arranged at the front end of the forklift box body. A storage battery, an industrial control computer, a programmable logic controller, a steering motor controller and a travelling motor controller are arranged in the middle of the forklift box body. The lower end of the forklift box body is provided with a driving assembly. One side of the driving assembly is provided with an executing mechanism. The upper end of the forklift box body is provided with a display module. The top of the forklift box body is provided with a laser scanning measuring instrument supported through a vertical pillar. The intelligent type laser guidance AVG forklift has the beneficial effects that the intelligent type laser guidance AVG forklift is novel in design and simple in structure; through industrially controlled signal analysis transmission, intelligent services of a traditional manual forklift is made to be achieved; the precision is high, feedback is sensitive, and using is convenient and fast; the application range is wide, operation is simple, and the practicability is good; application and using are convenient.

A full-body non-invasive laser scanner for mapping or measuring a patient's body and for treating a patient's body with laser energy comprises a patient support, one or more laser devices, a laser guidance system, a control center, and optionally feedback sensors. The patient support aids in maintaining body alignment during treatment, and the laser devices are moveably positioned on a laser guidance system such that they can be driven about a stationary patient. To map and contour a patient's body, the patient aligns himself on the patient support. With the control center, an operator chooses whether to map, contour, or map and contour the patient's body either manually or according to preprogrammed treatment protocols. The carriage assembly translates and the laser devices apply laser energy to the surfaces of the patient's body according to the chosen protocol. Feedback sensors provide data for mapping the contours of the patient's body.

The invention discloses a road side stone paving machine which mainly consists of a vehicle body mechanism, a hoisting mechanism, a laser guidance mechanism and a cement scraping mechanism, wherein a front axle of a vehicle body is a gantry sledge which is 0.4m away from the ground; a rear axle shaft is in differential transmission; the hoisting mechanism is mounted on one side of the vehicle body and consists of a three-dimensional platform and a pair of hoisting pincers; the laser guidance mechanism consists of a laser line drawing instrument and a laser receiver; the laser receiver is of a light target structure; a laser target is mounted on a side surface of the hoisting pincers and moves together with the pincers; the cement scraping mechanism is driven by a direct-current motor. The machine adopts laser to draw a line, the whole machine is supplied with power through a storage battery, and the machine is matched with modern road construction engineering machinery, can precisely and rapidly pave and is low in noise and free of pollution.

The invention discloses a tracking and aiming system and method combining image recognition and laser guidance, a system comprises a laser receive device and a laser emitting device, at first, the patrol inspection is carried out through a preset line, as that target object is determined to enter the field of view, getting the location information of the target object, adjusting the tracking platform so that the target object is in the center of the field of view, a laer beam is directed into that target area to perform coarse tracing, after entering the target area, according to the deviationbetween the beacon light and the reflected beacon light, the direction of the beacon light is finely adjusted to realize high-precision tracking and aiming. The tracking and aiming system provided bythe embodiment of the invention has the advantages of small volume, high precision, fast speed, and can independently search the target in a large range, thereby greatly widening the application range of wireless laser power transmission.

The invention discloses a method for capturing an object by using a last pulse policy of a laser seeker of an unmanned aerial vehicle. According to the method disclosed by the invention, the last pulse policy is adopted, by means of effectively identifying a last pulse of an echo in a single laser period and filtering out atmosphere back scattering echo pulses, an echo signal of the object can be accurately captured within a signal gating time of a seeker detector, so that a laser semi-active seeker of an airborne guided missile of the unmanned aerial vehicle can filter out atmosphere back scattering echo signals and repeater inductive signals, can identify a real object echo pulse signal, in this way, disadvantages of laser guidance can be overcome, capturing, tracking and locking precisions for the object are greatly improved; according to the method disclosed by the invention, the last pulse policy is adopted, two sampling holders are used to perform alternative sampling and to keep gating, pulses in gates of a single laser periodic wave are all sampled, back scattering pulses or induced signal pulses which arrive before an object echo are filtered out, and the last pulse, namely the object pulse, is preserved, in this way, a signal-to-noise ratio of the object echo signal is greatly increased, and a striking effect of the airborne guided missile of the unmanned aerial vehicle under severe weather conditions is improved.

A guidance system includes a first laser device coupled to a mount, the first laser device adapted to generate a first laser signal having a first wavelength. A second laser device is also coupled to the mount and directed substantially parallel with the first laser device. The second laser device is adapted to generate a second laser signal having a second wavelength. A first photodiode is adapted to detect the first laser signal, retro-reflected from a first wavelength matched section of a reflector system, and the second laser, signal retro-reflected from a second wavelength matched section of the reflector system. The first photodiode is adapted to generate a first photodiode signal therefrom.

The invention discloses a control system and method for an unmanned helicopter with combined guided weapons. The system comprises a helicopter-mounted sub system and a ground sub system, the helicopter-mounted sub system comprises a weapon module, and the image guided weapon and the laser guided weapon are loaded in the weapon module and comprise an image guiding head and a laser guiding head correspondingly. The method comprises the following steps that 1, a target is searched, detected, recognized, locked, traced and positioned, and optionally, a stably-aiming device emits a laser to the target; 2, a flying area is adjusted to enable the target to be within the searching rage of the image guiding head and/or enable the laser guiding head to receive the laser diffused by the target; 3, apowering-on instruction is sent out by a weapon manipulating part to control the image guiding head and/or the laser guiding head to be powered on; and 4, an ignition instruction is sent out by the weapon manipulating part to conduct launching of the image guided weapon and/or the laser guided weapon, and thus target attacking is achieved.