Data collection and fault prediction test system applied to image seeker

Abstract

The utility model discloses a data collection and fault prediction test system applied to an image seeker. The data collection and fault prediction test system comprises a high-precision two-axis turntable, a digital power meter, a direct-current power supply, a display, a target simulation unit, a control and data collection platform and a data collection circuit board. The test system provided by the utility model solves the problems that the infrared / visible light image platform seeker has a large number of parts and a complex structure, has high requirements on professional ability of inspection personnel during inspection, and is slow in fault positioning due to judgment mostly depending on artificial experience.

Description

TECHNICAL FIELD

[0001] The utility model relates to image guide head technical field especially relates to a data collection and fault prediction test system for image guide head. BACKGROUND

[0002] Image platform guide head needs to complete target tracking identification, and provides target position, speed information for the projectile body. Image platform guide head includes motor, angle sensor, speed sensor, control system, tracking system, optical system, infrared detection component, visible light detection component and multiple components, and the structure is complex, so the fault types are also more, for example, during the debugging inspection stage, image platform guide head is prone to the following problems:

[0003] 1, when the guide head appears the fault, need experienced inspection personnel to judge the fault reason according to experience, and cannot quickly locate;

[0004] 2, guide head function performance inspection process is more, and the detection of different function performance indexes needs to be measured according to different equipment, and the inspection time is long, and the process complexity is high;

[0005] 3, data processing needs to rely on professional technical personnel post-processing, and data processing is slow, and data record is less and is not convenient for later inquiry.

[0006] In addition, in order to solve the test problem of image platform guide head, still need to network test equipment, test product, control system, do processing with guide head data, can obtain test result with test equipment data. UTILITY MODEL CONTENT

[0007] In view of above problem, the utility model aims at providing a data collection and fault prediction test system for image guide head, which can quickly detect the image platform guide head.

[0008] In order to achieve the above object, the utility model discloses the following technical scheme: data collection and fault prediction test system for image director, including high accuracy two -axis turntable, digital power meter, direct current power supply, display, target analog unit, control and data collection platform, data collection circuit board, the direct current power supply supplies power to whole system, the display shows the output video of director, the high accuracy two -axis turntable provides the angle value and angular velocity value of azimuth, pitch direction, control and data collection platform calibrates the error of director's own angle, angular velocity according to the data provided by high accuracy two -axis turntable, the digital power meter exports the working voltage and current of director, control and data collection platform judges whether director appears the fault through abnormal monitoring current, voltage, target analog unit simulates the track of moving target, target speed and motion track, control and data collection platform calculates the maximum tracking speed and tracking precision of director through target running track and the information returned by director, and combines the data of high accuracy two -axis turntable, the data collection circuit board takes TMS320F28335 as main control chip, and external communication interface includes four RS422 serial ports, a RS232 serial port and a CAN bus, and is communicated with control and data collection platform through RS422 serial port.

[0009] Further, the control and data collection platform includes a module 1 director state information processing unit, a module 2 director performance parameter input unit, a module 3 turntable, digital power meter, target data information processing unit, a module 4 director error value calculation unit, and a module 5 director data storage and state information display unit.

[0010] Further, the module 1 is used for sending director control instructions and accepting director state instructions; the module 2 is used for processing manually entered director parameters; the module 3 is used for receiving data returned by the turntable and digital power meter and performing data analysis; the module 4 calculates the data of the module 1 and the module 3 to obtain error values of key parameters of the director, compares the error values with error values of the module 2, and judges whether the performance of the director meets the requirements; and the module 5 is used for storing data and displaying director state information.

[0011] Further, the data collection circuit board includes a serial port expansion circuit, a four-way RS422 transceiver circuit, a CAN bus transceiver circuit, a power supply and a reset circuit.

[0012] Further, the serial port expansion circuit takes the serial port expansion chip XR16V654DIV as a master control chip, wherein the capacitors C24, C25 and C27 are used for power filtering, the resistor R31 and the resistor RN1 are used for enabling control, U10 is a crystal oscillator, which provides a working clock for the XR16V654DIV, C31 and L3 are used for crystal oscillator power supply filtering, C32 is used for crystal oscillator output clock filtering, and R33 is used for clock circuit impedance matching.

[0013] Further, the four-way S422 transceiver circuit takes the MAX3490 as a master control chip, wherein C2 is a power filtering capacitor, and R5 is a matching resistor.

[0014] Further, the CAN bus transceiver circuit takes the CAN bus transceiver ADM3053 as a master control chip, C1-C4 are used for power filtering, R1 and R3 are used for impedance matching with the TMS320F28335, C5 and C6 are used for signal filtering, R2 is used for enabling, R4 is used for CAN bus impedance matching, and D1 is used for bus overvoltage protection.

[0015] Further, the power supply and reset circuit takes the TPS767D301 as a master control chip, U6 is a logic chip SN74LVC1G08, C21 is a power filtering capacitor of U6, R28 is a pull-up resistor, U5 is a low-dropout regulator, C16 and C17 are power filtering capacitors, R19-R23 are enabling resistors, C19 and C20 are output filtering capacitors, Q1 is a switching MOS tube, and R25 is used for current shunting.

[0016] Compared with the prior art, the test system solves the problems that the infrared / visible light image platform seeker has many components, a complex structure, high requirements for professional ability of the tester during inspection, and slow fault positioning due to the fact that the fault positioning is mainly determined by manual experience. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a frame diagram of the test system of the utility model;

[0018] Figure 2 is a software function module composition diagram of the control and data collection platform;

[0019] Figure 3 is a function block diagram of the data collection circuit board;

[0020] Figure 4 is a serial port expansion circuit diagram;

[0021] Figure 5 is an RS422 transceiver circuit and CAN bus transceiver circuit diagram;

[0022] Figure 6 is a power supply and reset circuit diagram. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings.

[0024] Referring to Figure 1 The data collection and fault prediction test system applied to the image seeker of the embodiment comprises a high-precision two-axis turntable, a digital power meter, a direct current power supply, a display, a target simulation unit, a control and data collection platform and a data collection circuit board.

[0025] The direct current power supply supplies power to the whole system, and the display displays the output video of the seeker. These two devices have no data output.

[0026] The high-precision two-axis turntable and the digital power meter are sensors. The high-precision two-axis turntable provides the angle value and angular velocity value in the azimuth and elevation directions. The control and data collection platform calibrates the error of the angle and angular velocity of the seeker according to the data provided by the high-precision two-axis turntable. The digital power meter is a current and voltage sensor. The control and data collection platform judges whether the seeker has a fault by monitoring the current and voltage abnormally.

[0027] The target simulation unit simulates the trajectory of a moving target, target speed and motion trajectory. The control and data collection platform calculates the maximum tracking speed and tracking accuracy of the seeker and other related parameters by combining the target running trajectory, the information returned by the seeker and the data of the high-precision two-axis turntable.

[0028] The control and data collection platform is a computer platform. It receives data through a USB interface and has five built-in function modules, such as Figure 2 As shown in the figure, the functions of each module are as follows:

[0029] Module 1 is a seeker state information processing unit. It is used for sending a seeker control instruction and accepting a seeker state instruction. The seeker state information includes the current speed and angular velocity of the azimuth and elevation axes of the seeker, the working state of the seeker, image information analysis, the miss distance information of the target after capture from the center field of view, etc.

[0030] Module 2 is a seeker performance parameter input unit. It is used for processing the manually entered seeker parameters. The performance parameters include the field of view size and focal length of the seeker, the maximum tracking speed, tracking accuracy and action distance that the seeker needs to reach, etc. These parameters are used as the basis for judgment in detection.

[0031] Module 3 is a turntable, digital power meter and target data information processing unit. It is used for receiving the data returned by the turntable and the digital power meter and performing data analysis.

[0032] Module 4 is a seeker error value calculation unit, which calculates the data of module 1 and module 3 to obtain the error value of the key parameters of the seeker, and compares the error value with the error value of module 2 to determine whether the performance of the seeker meets the requirements;

[0033] Module 5 is a seeker data storage and state information display unit, which is used for storing data and displaying state information of the seeker, and the state information includes current image information, error data, whether failure, etc.

[0034] The data collection circuit board comprises a serial port expansion circuit, a four-way RS422 transceiving circuit, a CAN bus transceiving circuit, a power supply and a reset circuit.

[0035] As shown in Figure 3 , the data collection circuit board takes TMS320F28335 as a master control chip, and the external communication interface comprises four-way RS422 serial ports, one-way RS232 serial ports and one-way CAN bus. The data collection circuit board communicates with the control and data collection platform through the RS422 serial ports. The data collection circuit board and the seeker communication interface reserve one-way RS422 and one-way CAN bus, and the corresponding communication interface can be selected according to the external interface type of the seeker. The data collection circuit board communicates with the high-precision two-axis turntable and the analog unit through the RS422 interface, and communicates with the digital power meter through the RS232.

[0036] The data collection circuit board comprises a serial port expansion circuit, a four-way RS422 transceiving circuit, a CAN bus transceiving circuit, a power supply and a reset circuit.

[0037] As shown in Figure 4 , the serial port expansion circuit takes the serial port expansion chip XR16V654DIV as a master control chip, the capacitors C24, C25 and C27 are used for power supply filtering, the resistor R31 and the resistor RN1 are used for enable control, U10 is a crystal oscillator, which provides a working clock for XR16V654DIV, C31 and L3 are used for crystal oscillator power supply filtering, C32 is used for crystal oscillator output clock filtering, and R33 is used for clock circuit impedance matching.

[0038] As shown in Figure 5 , the four-way RS422 serial port communication of the data processing board adopts the serial port transceiving circuit taking MAX3490 as a master control chip, C2 is a power supply filtering capacitor, and R5 is a matching resistor.

[0039] As shown in Figure 5 , the CAN bus transceiving circuit takes the CAN bus transceiver ADM3053 as a master control chip, C1-C4 are used for power supply filtering, R1 and R3 are used for impedance matching with TMS320F28335, C5 and C6 are used for signal filtering, R2 is used for enable, R4 is used for CAN bus impedance matching, and D1 is used for bus overvoltage protection.

[0040] As Figure 6 shown, the power supply and reset circuit take TPS767D301 as the main control chip, U6 is a logic chip SN74LVC1G08, when the 3.3V and 1.9V voltage is normally output, a low reset level of U6 is output to TMS320F28335, C21 is the power filter capacitor of U6, and R28 is a pull-up resistor, which ensures that the reset level of TMS320F28335 is high when it normally works; U5 is a low-dropout regulator, which converts 5V voltage into 3.3V and 1.9V, C16 and C17 are power filter capacitors, R19-R23 are enable resistors, C19 and C20 are output filter capacitors, Q1 is a switch MOS tube, which is used to ensure that 1.9V is powered first and then 3.3V is enabled to power on, and R25 is used for current shunting.

[0041] Working principle: the data collection circuit board collects the data of the seeker and each test equipment on line to the control and data collection platform; the control and data collection platform calibrates the angle and angular velocity precision of the seeker azimuth and pitch two axes through the high-precision turntable, judges whether there is a major failure of a component of the seeker through the current and voltage output by the digital power meter, obtains the maximum tracking speed and tracking precision of the seeker and other related parameters through the angle and angular velocity data output by the high-precision turntable, the target motion data returned by the target simulation unit, and the self angle and angular velocity data returned by the seeker after data processing and calculation, sends instructions to the seeker through the control and data collection platform, judges whether the function of the seeker is normal through the comparison between the returned data and the sent instructions, and displays the current state data of the seeker and whether each component is faulty through the display.

[0042] The preferred embodiments are only used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A data collection and prognostic test system for an image guidance head, the system comprising: The system comprises a high-precision two-axis turntable, a digital power meter, a direct current power supply, a display, a target simulation unit, a control and data collection platform, and a data collection circuit board; the direct current power supply supplies power to the whole system, the display displays the output video of the seeker, the high-precision two-axis turntable provides the angle value and angular velocity value in the azimuth and elevation directions, the control and data collection platform calibrates the error of the angle and angular velocity of the seeker according to the data provided by the high-precision two-axis turntable; the digital power meter outputs the working voltage and current of the seeker, the control and data collection platform judges whether the seeker is faulty through the abnormal monitoring of the current and voltage; the target simulation unit simulates the trajectory, target speed and motion trajectory of the moving target, the control and data collection platform calculates the maximum tracking speed and tracking accuracy of the seeker through the target running trajectory and the information returned by the seeker in combination with the data of the high-precision two-axis turntable; the data collection circuit board takes TMS320F28335 as the main control chip, the external communication interface comprises four RS422 serial ports, one RS232 serial port and one CAN bus, and the RS422 serial port is in communication with the control and data collection platform.

2. The data collection and prognostic test system for image-guided heads of claim 1, wherein, The control and data collection platform comprises a module 1 seeker state information processing unit, a module 2 seeker performance parameter input unit, a module 3 turntable, digital power meter and target data information processing unit, a module 4 seeker error value calculation unit and a module 5 seeker data storage and state information display unit.

3. The data collection and prognostic test system for image-guided heads of claim 2, wherein, The module 1 is used for sending the seeker control instruction and receiving the seeker state instruction; the module 2 is used for processing the manually entered seeker parameters; the module 3 is used for receiving the data returned by the turntable and the digital power meter and performing data analysis; the module 4 calculates the error value of the key parameters of the seeker by using the data of the module 1 and the module 3, compares the error value with the error value of the module 2, and judges whether the performance of the seeker meets the requirements; and the module 5 is used for storing data and displaying the state information of the seeker.

4. The data collection and prognostic test system for image-guided heads of claim 3, wherein, The data collection circuit board comprises a serial port expansion circuit, a four-way RS422 transceiver circuit, a CAN bus transceiver circuit, a power supply and a reset circuit.

5. The data collection and prognostic test system for image-guided heads of claim 4, wherein, The serial port expansion circuit takes XR16V654DIV as the main control chip, wherein the capacitors C24, C25 and C27 are used for power supply filtering, the resistor R31 and the resistor RN1 are used for enabling control, U10 is a crystal oscillator, which provides a working clock for XR16V654DIV, C31 and L3 are used for crystal oscillator power supply filtering, C32 is used for crystal oscillator output clock filtering, and R33 is used for clock circuit impedance matching.

6. The data collection and prognostic test system for image-guided heads of claim 5, wherein, The four-way RS422 transceiver circuit takes MAX3490 as the main control chip, wherein C2 is a power supply filtering capacitor and R5 is a matching resistor.

7. The data collection and prognostic test system for image-guided heads of claim 6, wherein, The CAN bus transceiver circuit takes CAN bus transceiver ADM3053 as the main control chip, C1-C4 are used for power supply filtering, R1 and R3 are used for impedance matching with TMS320F28335, C5 and C6 are used for signal filtering, R2 is used for enabling, R4 is used for CAN bus impedance matching, and D1 is used for bus overvoltage protection.

8. The data collection and prognostic test system for image-guided heads of claim 7, wherein, The power supply and reset circuit take TPS767D301 as main control chip, U6 is logic chip SN74LVC1G08, C21 is the power filter capacitor of U6, R28 is pull-up resistor, U5 is low dropout regulator, C16 and C17 are power filter capacitors, R19-R23 are enable resistors, C19 and C20 are output filter capacitors, Q1 is a switch MOS tube, and R25 is used for current shunting.

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