31results about How to "Improve detection and positioning accuracy" patented technology

The invention discloses an acoustic vibration artificial intelligence detection and positioning method for tank armored vehicles, which relates to the technical field of target detection and positioning, including arranging at least three sets of acoustic cross arrays above the ground to capture the sound in the air formed by the driving of tank armored vehicles Detection; arrange at least three groups of vibration sensors on the ground or underground to capture and detect the vibration formed by the driving of tanks and armored vehicles; respectively, according to the detection output of the acoustic cross array and the vibration sensor, use the input and expected output to train the RBF neural network, according to the training As a result, the first and second target positions are obtained; the first and second target positions are weighted and calculated using a weighting function to obtain the final position of the tank and armored vehicle. The invention requires less array elements, is simple in form, is very convenient and fast in array arrangement, and has a plane and space omnidirectional search function.

A battery discharge detection mechanism and its testing equipment. The battery discharge detection mechanism includes: a battery discharge conveying line, a battery discharge loading tray, and a discharge detection module. The battery discharge conveying line is provided with a battery discharge area; the battery discharge loading tray is set On the battery discharge conveying line, the discharge detection module includes a positive detection board, a negative detection board, a first lift driver and a second lift drive. The positive detection board and the negative detection board are arranged symmetrically up and down in the battery discharge area; A plurality of positive test probes are arranged on the detection board, and a plurality of negative test probes are arranged on the negative detection board. The battery discharge detection mechanism of the present invention can perform a batch discharge operation on cylindrical batteries by setting up a battery discharge conveying line, a battery discharge loading tray, and a discharge detection module. The precision is high, and at the same time, the efficiency of detection and processing can be improved.

The invention discloses a low-altitude unmanned aerial vehicle passive acoustic detection device, comprising an acoustic sensor array detection module, a multi-channel data acquisition module, a signal preprocessing module, an Ethernet transmission module, an embedded processing module, a display and control module, and a voice alarm module. The acoustic sensor array detection module is used to receive the acoustic signal, the multi-channel data acquisition module is used to convert the collected acoustic signal into a digital signal, the signal preprocessing module is used to filter and reduce the noise of the signal, and transmit it through the Ethernet transmission module To, the embedded processing module is used to realize signal processing and host computer information processing, the display and control module is used to display detection information and issue relevant instructions to the alarm and countermeasure system, and the voice alarm module is used to broadcast real-time detection and positioning information by voice. The invention has the characteristics of high detection and positioning accuracy, can detect and display the position, quantity and type of slow and small flying targets such as consumer grades invading the airspace in real time, and improves the strength of low-altitude early warning and defense.

The invention discloses a method and device for accurately evaluating the degree of facial paralysis based on H-B classification under CV. The method includes: establishing a facial paralysis key point detection model; obtaining data to be detected and processing the data to be detected: inputting the expressionless natural state static image, sequence image 1, sequence image 2, sequence image 3, and sequence image 4 into the facial paralysis key In the point detection model, the corresponding multiple sets of face shapes are output, and multiple sets of face shapes are updated; the degree of facial paralysis of the user to be detected is evaluated: calculate θ 1 , θ 2 , θ 4 , θ 6 , θ 8 , θ 10 , θ 11 And compare them with their thresholds respectively; judge the degree of facial paralysis of the user to be detected by comparing the results, and calculate the facial paralysis index. The invention can make the detection model have higher detection and positioning accuracy, greatly improve the accuracy and accuracy of the comprehensive evaluation and detection of the degree of facial paralysis of the user to be detected, and provide strong support for the prevention, discovery and treatment of facial paralysis patients.

The invention provides a dynamic balance test method and a device thereof. The dynamic balance test method is used for testing workpieces with peripheries distributed with grooves uniformly and includes steps as follows: axially rotating a workpiece; utilizing a non-contact sensor to test the grooves on the workpiece at a fixed position and generate a pulse signal, wherein the pulse signal generated by the non-contact sensor when the workpiece begins to rotate is used as an unbalance datum zero-degree signal; dividing frequency of the pulse signal, wherein multiple of frequency dividing is equal to the amount of the grooves on the workpiece; and defining unbalance amount and unbalance angle according to the pulse signal after frequency dividing, wherein a first pulse front edge of the unbalance datum zero-degree signal is used as a zero-angle position of the workpiece when defining the unbalance angle. The dynamic balance test method and the device thereof remove special processes on the surface of the workpiece and save working procedures, thereby increasing positioning accuracy of unbalance angle tests. The dynamic balance test method and the device thereof are adoptable to automation of dynamic balance.

The invention discloses a one-side gripper-bar-free intermittent motion mechanism and a mold pressing technology of the one-side gripper-bar-free intermittent motion mechanism. The mechanism comprises a servo motion control system, a servo motor, a driving chain wheel, a driven chain wheel, a chain, paper grippers and a photoelectric detection switch. The servo motion control system, the servo motor and the driving chain wheel are arranged on a wall plate of a machine frame. The chain is connected to the driving chain wheel and the driven chain wheel. The multiple paper grippers are fixed to the chain. The photoelectric detection switch is arranged on one side of a fixed platform. A gripper bar is omitted, the paper gripping operation way that the paper grippers are directly fixed to one chain is adopted, and therefore the equipment structure is optimized and simpler. Meanwhile, the servo motor and the servo motion control system are adopted and matched with the photoelectric detection switch, the operation control precision and detection position precision of the mechanism are far higher than the motion control precision and the positioning precision of a mechanical intermittent motion mechanism in the background art, the operation speed and production efficiency of equipment are improved, the die cutting processing precision and the yield of paper are improved, and the cost of the complete machine is saved.

The invention provides a detection positioning system and method of an unmanned aerial vehicle and relates to the technical field of detection positioning. The system comprises a central processing station and a plurality of monitoring stations, wherein the central processing station comprises a first satellite module, a first processor, a first satellite antenna and a first data link module, thefirst satellite module and the first data link module are respectively connected with the first processor, each monitoring station comprises a second satellite module, a second processor, a second satellite antenna, an air-ground link signal interception module, an interception antenna, a timestamp calibration module and a second data link module, the air-ground link signal interception module isrespectively connected with the interception antenna and the timestamp calibration module, and the second satellite module, the air-ground link signal interception module, the timestamp calibration module and the second data link module are respectively connected with the second processor. The system is advantaged in that detection and positioning precision of the unmanned aerial vehicle can be improved.

The invention relates to a body positioning perception apparatus for an intelligent sound equipment. The apparatus herein includes a pedestal, a bearing frame, a guide rail, a slide block, a rotary table mechanism, an annular guide rail, a range finding apparatus, a body sensor, a positioning buckle, a supporting desk, and a control circuit. A lower surface of the pedestal is provided with a connecting mechanism, and an upper surface of the pedestal is provided with a the annular guide rail and the supporting desk. The supporting desk is in sliding connection to the upper surface through the annular guide rail. The guide rail is installed on the outer side surface of the bearing frame, and the guide rail is provided with at least one slide block. The at least one slide block is connected to the range finding apparatus and the body sensor through the rotary table mechanism. According to the invention, on one hand, the apparatus, based on use requirements, can effectively cooperate withthe sound equipment and has the characteristics of excellent application range and universality; and on the other side, the apparatus can accurately and effectively position audience's positions and the distances between the audience and the sound equipment so as to increase the use efficiency of the sound equipment.