Laser target simulator with adjustable laser coded pulse and energy output

Abstract

The invention provides a laser target simulator with adjustable laser coding pulse and energy output, which comprises a collimation optical system, a laser coding and driving module and an external interface module, the external interface module supplies power to the laser coding and driving module, and the laser coding and driving module comprises a pulse modulation circuit. The pulse modulation circuit carries out pulse modulation, and then the laser coding and driving module drives the collimation optical system to emit laser. The method is realized through a laser coding and driving module. Specifically, the laser coding and driving module is used for generating a laser coding pulse electric signal, and the output laser energy is changed by the driving module. Different use requirements can be met by selecting the output of different laser coded pulses and the output of required laser energy.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser target simulation, and particularly relates to a laser target simulator with adjustable laser coding pulses and energy output. Background Art

[0002] The laser target simulator is an important component of the hardware-in-the-loop simulation system of laser-guided weapons. It supplies a stable laser target for the optoelectronic system under test and plays an important role in the research and development and testing processes. At present, the laser coding pulses and energy output of the laser target simulator are generally fixed and unchangeable, and the same laser target simulator cannot meet the requirements of different application scenarios for different laser coding pulses and energy output. Therefore, there is an urgent need to propose a new type of laser target simulator with adjustable laser coding pulses and energy output to solve the above technical problems. Summary of the Invention

[0003] Aiming at the problem that the laser coding pulses and energy output of the same laser target simulator are fixed and unchangeable, different corresponding required code patterns are selected through a code pattern selection switch, and the microprocessor is used to modulate the output electrical pulse signal, so as to realize adjustable laser coding pulses and energy.

[0004] The present invention provides a laser target simulator with adjustable laser coding pulses and energy output, which includes a collimating optical system, a laser coding and driving module, and an external interface module. The external interface module supplies power to the laser coding and driving module. The laser coding and driving module includes a pulse modulation circuit (also known as a laser coding module). The pulse modulation circuit performs pulse modulation, and then the laser coding and driving module drives the collimating optical system to emit laser.

[0005] In some embodiments, the external interface module includes a power supply unit and the code pattern selection switch. The laser coding and driving module further includes a code pattern selection circuit, a power management circuit, and a driving circuit. The collimating optical system includes a laser and a collimating unit. The power supply unit supplies power to the pulse modulation circuit, the power management circuit, and the driving circuit. The code pattern selection circuit controls the microprocessor in the pulse modulation circuit according to the corresponding laser coding pattern selected by the code pattern selection switch. The microprocessor modulates the output electrical pulse signal, and finally the driving circuit amplifies the electrical pulse signal output by the pulse modulation circuit and adjusts the output amplitude to realize the adjustment of the output energy. The driving circuit drives the laser to emit laser. The laser emits laser and exits through the collimating unit.

[0006] In some embodiments, the collimating optical system includes a laser, a collimating optical lens group, and a laser homogenizer. The laser emits laser, which passes through the laser homogenizer and then enters the collimating optical lens group and then outputs laser.

[0007] In some embodiments, the laser homogenizer is specifically a ground glass.

[0008] In some embodiments, the laser encoding and driving module further includes a pattern selection circuit (also known as a key acquisition circuit). The pattern selection circuit realizes the configuration of laser pattern pulses. The pattern selection circuit includes a pattern selection switch and a one-to-one connection circuit communicating with the microprocessor. By selecting the required pattern through the pattern selection switch, the one-to-one connection circuit communicating with the microprocessor controls the microprocessor to output an electrical pulse signal of the corresponding pattern, and then drives the laser to output laser.

[0009] In some embodiments, the pulse modulation circuit includes a microprocessor and the peripheral circuits required by the microprocessor. The peripheral circuits include a system clock, a reset, a power supply, and a communication unit. The peripheral circuits drive and control the operation of the microprocessor, and perform output pattern control through a one-to-one connection circuit interface with the pattern selection circuit. Specifically, the microprocessor modulates the output electrical pulse signal, and the electrical pulse signal includes a pulse width and a repetition frequency.

[0010] In some embodiments, the microprocessor writes a control program. The control program enables the pulse modulation circuit to control the pattern selection switch to select the required pattern, outputs the electrical pulse signal of the required pattern to the driving circuit, and the driving circuit drives the laser to emit laser.

[0011] A laser target simulator with adjustable laser encoding pulses and energy output according to the present invention is realized through a laser encoding and driving module. Specifically, the laser encoding and driving module is used to generate a laser encoding pulse electrical signal, and the driving module changes the output laser energy. Different output of laser encoding pulses and required output of laser energy can be selected to meet different usage requirements. The laser encoding and driving module includes a pattern selection circuit. The pattern selection circuit has a user interaction interface. After the user selects the corresponding pattern, the microprocessor in the laser encoding module is controlled through the pattern selection circuit. The microprocessor modulates the output electrical pulse signal, mainly including the pulse width and the repetition frequency. Finally, the driving module amplifies the electrical pulse signal output by the laser encoding module, and adjusts the output amplitude by this module to realize the adjustment of the output energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a block diagram of the system composition of a laser target simulator with adjustable laser encoding pulses and energy output for the embodiment;

[0013] Figure 2 It is a schematic diagram of the working process of a laser target simulator with adjustable laser encoding pulses and energy output for the embodiment. Detailed implementation mode

[0014] As Figure 1 shown, the present invention provides a laser target simulator with adjustable laser coding pulses and energy output, which includes a collimation optical system, a laser coding and driving module, and an external interface module. The external interface module supplies power to the laser coding and driving module. The laser coding and driving module includes a pulse modulation circuit (also known as a laser coding module). The pulse modulation circuit performs pulse modulation, and then the laser coding and driving module drives the collimation optical system to emit laser light.

[0015] In this embodiment, the external interface module includes a power supply unit and a code pattern selection switch. The laser coding and driving module further includes a code pattern selection circuit, a power management circuit, and a driving circuit. Figure 1 Specifically, it is an LED and button driving module. The collimation optical system includes a laser, a ground glass, and a collimation unit. The power supply unit includes internal battery power supply and external power supply, which supply power to the pulse modulation circuit, the power management circuit, and the driving circuit. The internal battery power supply and the external power supply can complete the power supply of the laser driving module. The code pattern selection switch realizes the switching of multiple code patterns, and selects the corresponding code pattern link of the pulse modulation circuit according to the code pattern switching, so as to control the laser driving module to control the laser to output optical pulse signals of the corresponding code pattern. The power management circuit converts the externally input DC power supply or battery power supply into secondary power supplies required by each module in the circuit. The code pattern selection circuit controls the microprocessor in the pulse modulation circuit according to the corresponding laser coding pattern selected by the code pattern selection switch, and the microprocessor modulates the output electrical pulse signal, that is, realizes the configuration of the laser code pattern pulse. Finally, the driving circuit amplifies the electrical pulse signal output by the pulse modulation circuit and adjusts the output amplitude to realize the adjustment of the output energy. The driving circuit drives the laser to emit laser light. The laser emits laser light and exits through the collimation unit.

[0016] In this embodiment, the laser coding and driving module further includes a code pattern selection circuit. The code pattern selection circuit realizes the configuration of the laser code pattern pulse. The code pattern selection circuit includes a code pattern selection switch and a one-to-one connection circuit communicating with the microprocessor. The required code pattern is selected through the code pattern selection switch, and then the one-to-one connection circuit communicating with the microprocessor controls the microprocessor to output an electrical pulse signal of the corresponding code pattern, so as to drive the laser to output laser light.

[0017] In this embodiment, the pulse modulation circuit includes a microprocessor and the peripheral circuits required by the microprocessor. The peripheral circuits include a system clock, a reset circuit, a power supply, and a communication unit. The peripheral circuits drive and control the operation of the microprocessor, and the output pattern control is performed by a one-to-one connection circuit interface with the pattern selection circuit. Specifically, the microprocessor modulates the output electrical pulse signal, and the electrical pulse signal includes a pulse width and a repetition frequency. Actually, the pulse modulation circuit converts the pulse pattern signal generated by adjusting the internal clock reference of the microcontroller or the externally input modulation pulse signal into an electrical pulse signal capable of driving the laser.

[0018] In this embodiment, the microprocessor writes a control program, and the control program enables the pulse modulation circuit to control the pattern selection switch to select the required pattern, and outputs the electrical pulse signal of the required pattern to the drive circuit. The drive circuit drives the laser to emit laser light. In this embodiment, specifically, the laser generates a laser pulse signal through the laser drive module and inputs it to the collimating optical system.

[0019] In this embodiment, the collimating optical system includes a laser, a collimating optical lens group, and a laser homogenizer. The laser emits laser light that passes through the laser homogenizer to ensure the angular measurement accuracy of the device under test, and then enters the collimating optical lens group and outputs laser light. The collimating optical system is used to form an infinitely distant laser target. The laser homogenizer is specifically a ground glass. The collimating optical lens group and the laser are connected together by optical fasteners. The light emitted by the laser is processed by the ground glass and the optical lens group to obtain a parallel light beam, realizing the simulation of the laser target.

[0020] In this embodiment, the laser target simulator provided by the present invention with adjustable laser coding pulses and energy output can also cooperate with a turntable to complete the angular measurement ability of the product. That is, the laser target simulator can output laser light in a specific direction. Through a specially designed tooling, the laser output direction can be basically kept consistent with the zero position of the turntable (i.e., the zero position in the pitch and heading directions). Furthermore, it can rotate a specific angle together with the turntable. That is, when the turntable rotates by a certain angle, the laser target simulator also rotates by the same angle, which can be used to simulate key parameters such as the tracking and aiming ability and the field of view of laser detection products.

Claims

1. A laser target simulator with adjustable laser coding pulses and energy output, characterized in that It includes a collimating optical system, a laser coding and driving module, and an external interface module. The external interface module supplies power to the laser coding and driving module. The laser coding and driving module includes a pulse modulation circuit which performs pulse modulation, and then the laser coding and driving module drives the collimating optical system to emit laser light.

2. A laser target simulator with adjustable laser coding pulses and energy output, characterized in that The external interface module includes a power supply unit and the code pattern selection switch. The laser coding and driving module further includes a code pattern selection circuit, a power management circuit, and a driving circuit. The collimating optical system includes a laser and a collimating unit. The power supply unit supplies power to the pulse modulation circuit, the power management circuit, and the driving circuit. The code pattern selection circuit controls the microprocessor in the pulse modulation circuit according to the corresponding code pattern selected by the code pattern selection switch. The microprocessor modulates the output electrical pulse signal, and finally the driving circuit amplifies the electrical pulse signal output by the pulse modulation circuit and adjusts the output amplitude. The driving circuit drives the laser to emit laser light. The laser emits laser light and exits through the collimating unit.

3. A laser target simulator with adjustable laser coding pulses and energy output, as claimed in claim 1, wherein The collimating optical system includes a laser, a collimating optical lens group, and a laser homogenizer. The laser emits laser light which passes through the laser homogenizer and then enters the collimating optical lens group and is output as laser light.

4. A laser target simulator with adjustable laser coding pulses and energy output, as described in claim 1, characterized in that The laser homogenizer is specifically a ground glass.

5. A laser target simulator with adjustable laser coding pulses and energy output, characterized in that The laser coding and driving module further includes a code pattern selection circuit which realizes the configuration of laser code pattern pulses. The code pattern selection circuit includes a code pattern selection switch and a one-to-one connection circuit communicating with the microprocessor. The required code pattern is selected through the code pattern selection switch, and then the one-to-one connection circuit communicating with the microprocessor controls the microprocessor to output an electrical pulse signal of the corresponding code pattern, thereby driving the laser to output laser light.

6. A laser target simulator with adjustable laser coding pulses and energy output, characterized in that The pulse modulation circuit includes a microprocessor and the peripheral circuits required by the microprocessor. The peripheral circuits include a system clock, a reset, a power supply, and a communication unit. The peripheral circuits drive and control the microprocessor to work, and perform output code pattern control through the one-to-one connection circuit interface with the code pattern selection circuit. Specifically, the microprocessor modulates the output electrical pulse signal, and the electrical pulse signal includes pulse width and repetition frequency.

7. A laser target simulator with adjustable laser coding pulses and energy output, as claimed in claim 6, wherein The microprocessor writes a control program which realizes that the pulse modulation circuit controls the code pattern selection switch to select the required code pattern, outputs the electrical pulse signal of the required code pattern to the driving circuit, and the driving circuit drives the laser to emit laser light.

Images