An internal and external synchronization processing circuit suitable for laser irradiator

Abstract

The present invention provides an internal and external synchronous processing circuit suitable for a laser irradiator, comprising an MCU minimum system and an MCU control circuit, and also comprising an internal and external synchronous signal processing circuit for enhancing the processing effect of the laser irradiator on external input signals. The internal and external synchronous signal processing circuit, the MCU minimum system and the MCU control circuit are connected in sequence, wherein the internal and external synchronous signal processing circuit processes the input signal of the laser irradiator and sends a signal to a subsequent circuit together with the MCU minimum system and the MCU control circuit; the MCU control circuit is controlled by the MCU minimum system and is used for switching the internal and external synchronous working mode of the laser irradiator; various modules and circuits cooperate with each other, have tight logic, efficient and fast response, strong self-adaptation ability, and can realize effective processing of external input signals.

Description

Technical Field

[0001] The invention belongs to the field of laser optoelectronic technology, and in particular relates to an internal and external synchronous processing circuit suitable for a laser irradiator. Background Art

[0002] As the application fields of laser irradiators become wider and wider, the performance requirements are also getting higher and higher. It is not only widely used in the fields of military industry, aerospace, etc., but also the core equipment of drone reconnaissance. It can track and detect units on land, at sea, and in the air through vehicles, ships, aircraft, etc. However, the irradiation frequency of laser irradiators is generally required to be tens or even thousands of hertz, and the corresponding frequency of receiving external input signals is also relatively high.

[0003] There are generally two ways for laser irradiators to receive external input signals, internal synchronization and external synchronization. The signals received through internal synchronization are generally pre-agreed internally, and this type of signal is more reliable and easier to process, but some users often require the use of external synchronization to receive signals. The signal received in this way does not know its frequency, width, and size, and the laser irradiator will be more difficult to process when faced with such input signals. At this time, we need to use a more reliable internal and external synchronization processing circuit to effectively process this input signal.

[0004] There are many kinds of internal and external synchronous processing circuits commonly used in the market, but most of them are not ideal in processing high-frequency unknown input signals. In view of the fact that the existing internal and external synchronous processing circuits do not have a good processing effect on high-frequency unknown input signals, an internal and external synchronous processing circuit suitable for laser irradiators is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an internal and external synchronous processing circuit suitable for a laser irradiator, so as to effectively improve the processing effect of the laser irradiator on external input signals.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an internal and external synchronization processing circuit suitable for a laser irradiator, including an MCU minimum system and an MCU control circuit, and also including an internal and external synchronization signal processing circuit for enhancing the processing effect of the laser irradiator on the external input signal. The internal and external synchronization signal processing circuit, the MCU minimum system and the MCU control circuit are connected in sequence, wherein the internal and external synchronization signal processing circuit processes the input signal of the laser irradiator and sends a signal to the subsequent circuit together with the MCU minimum system and the MCU control circuit. The MCU control circuit is controlled by the MCU minimum system and is used to switch the internal and external synchronization working mode of the laser irradiator;

[0007] The internal and external synchronous signal processing circuit includes universal logic gate chips U8, U9, and U10. Pin 1 of the universal logic gate chip U8, pin 1 of the universal logic gate chip U10, and pin 2 of the universal logic gate chip U10 are connected to the MCU minimum system. Pin 2 of the universal logic gate chip U8 is used to receive the input signal of the laser irradiator. Pin 4 of the universal logic gate chip U8 is connected to pin 1 of the universal logic gate chip U9 via resistor R14. Pin 4 of the universal logic gate chip U10 is connected to pin 2 of the universal logic gate chip U9 via resistor R21. Pin 5 of the logic gate chip U8 is connected to the power supply voltage and the pin 5 of the universal logic gate chip U8 is also grounded via capacitor C42, pin 5 of the universal logic gate chip U10 is connected to the power supply voltage and the pin 5 of the universal logic gate chip U10 is also grounded via capacitor C45, pin 4 of the universal logic gate chip U9 is divided into two branches after capacitor C43, one of which is grounded via resistor R20, and the other branch is connected to the MCU control circuit, pin 5 of the universal logic gate chip U9 is connected to the power supply voltage and the pin 5 of the universal logic gate chip U9 is also grounded via capacitor C44;

[0008] The MCU control circuit includes a monostable trigger U12, wherein pins 1, 4 and 6 of the monostable trigger U12 are all grounded, pin 2 of the monostable trigger U12 is connected to pin 4 of the universal logic gate chip U9, pin 3 of the monostable trigger U12 is connected to the power supply voltage, pin 5 of the monostable trigger U12 is connected to the laser illuminator via resistor R30, and is used to switch the internal and external synchronous working mode of the laser illuminator, pin 7 of the monostable trigger U12 is grounded via capacitor C54, pin 8 of the monostable trigger U12 is grounded via capacitor C47 and pin 8 of the monostable trigger U12 is also connected to the power supply voltage, and a resistor R12 is also connected in series between pins 8 and 7 of the monostable trigger U12.

[0009] Furthermore, the MCU minimum system adopts the STM32 series single-chip microcomputer.

[0010] Furthermore, pins 5 and 6 of the MCU minimum system are connected to the crystal oscillator Y1 and then grounded.

[0011] Furthermore, pins 5 and 6 of the MCU minimum system are respectively connected to capacitor C4 and capacitor C3 and then grounded.

[0012] Furthermore, pin 7 of the MCU minimum system is a reset port, and pin 1 of the MCU minimum system is used to connect the power supply voltage.

[0013] Furthermore, the supply voltage is +3.3V.

[0014] Furthermore, the MCU minimum system is respectively connected with a debugging interface and an ARM decoupling capacitor.

[0015] Furthermore, pin 3 of the universal logic gate chip U8, pin 3 of the universal logic gate chip U9, and pin 3 of the universal logic gate chip U10 are all grounded.

[0016] Furthermore, the models of the universal logic gate chips U8, U9, and U10 are all NL17SZ08DFT2G.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the internal and external synchronization signal processing circuit in the present invention processes the input signal of the laser illuminator, and sends a signal to the subsequent circuit together with the MCU minimum system and the MCU control circuit. The MCU control circuit is controlled by the MCU minimum system and is used to switch the internal and external synchronization working mode of the laser illuminator. The various modules and circuits cooperate with each other, with tight logic, efficient and fast response, strong adaptability, and can realize effective processing of external input signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a principle block diagram of an internal and external synchronization processing circuit suitable for a laser irradiator;

[0019] Figure 2 It is a circuit schematic diagram of the internal and external synchronous signal processing circuit of the present invention;

[0020] Figure 3 It is a circuit schematic diagram of the MCU control circuit of the present invention;

[0021] Figure 4 It is the circuit principle diagram of the minimum MCU system of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] An internal and external synchronization processing circuit suitable for a laser irradiator, such as Figure 1As shown, it includes an MCU minimum system and an MCU control circuit, and also includes an internal and external synchronization signal processing circuit for enhancing the processing effect of the laser irradiator on the external input signal. The internal and external synchronization signal processing circuit, the MCU minimum system and the MCU control circuit are connected in sequence, wherein the internal and external synchronization signal processing circuit processes the input signal of the laser irradiator, and sends a signal to the subsequent circuit together with the MCU minimum system and the MCU control circuit. The MCU control circuit is controlled by the MCU minimum system and is used to switch the internal and external synchronization working mode of the laser irradiator. The MCU minimum system is the circuit core and is used for information processing. The MCU control circuit switches the internal and external synchronization working mode through the internal and external synchronization enable pins.

[0024] The internal and external synchronous signal processing circuit is an important guiding circuit to improve the effectiveness of the laser irradiator in receiving external signals. It can effectively enhance the processing effect of the laser irradiator on the external input signal. Figure 2 As shown, the internal and external synchronous signal processing circuit includes universal logic gate chips U8, U9, and U10. Pin 1 of the universal logic gate chip U8, pin 1 of the universal logic gate chip U10, and pin 2 of the universal logic gate chip U10 are connected to the MCU minimum system. Pin 2 of the universal logic gate chip U8 is used to receive the input signal of the laser illuminator. Pin 4 of the universal logic gate chip U8 is connected to pin 1 of the universal logic gate chip U9 via resistor R14. Pin 4 of the universal logic gate chip U10 is connected to pin 2 of the universal logic gate chip U9 via resistor R21. Pin 5 of the universal logic gate chip U8 is connected to the power supply voltage and pin 5 of the universal logic gate chip U8 is also grounded via capacitor C42. Pin 5 of U10 is connected to the power supply voltage and pin 5 of the universal logic gate chip U10 is also grounded via capacitor C45, pin 4 of the universal logic gate chip U9 is divided into two branches after capacitor C43, one branch is grounded via resistor R20, and the other branch is connected to the MCU control circuit, pin 5 of the universal logic gate chip U9 is connected to the power supply voltage and pin 5 of the universal logic gate chip U9 is also grounded via capacitor C44, when the laser illuminator processes the external input signal, poor processing effect will seriously affect the subsequent response of the illuminator to these signals, and the performance of the laser illuminator cannot meet expectations, and the internal and external synchronization signal processing circuit of the present invention can be fully applicable to the processing of the external input signal by the laser illuminator.

[0025] like Figure 3As shown, the MCU control circuit includes a monostable trigger U12, wherein pins 1, 4 and 6 of the monostable trigger U12 are all grounded, pin 2 of the monostable trigger U12 is connected to pin 4 of the universal logic gate chip U9, pin 3 of the monostable trigger U12 is connected to the power supply voltage, pin 5 of the monostable trigger U12 is connected to the laser illuminator via resistor R30, and is used to switch the internal and external synchronous working mode of the laser illuminator, pin 7 of the monostable trigger U12 is grounded via capacitor C54, pin 8 of the monostable trigger U12 is grounded via capacitor C47 and pin 8 of the monostable trigger U12 is also connected to the power supply voltage, and a resistor R12 is also connected in series between pins 8 and 7 of the monostable trigger U12.

[0026] To further optimize this solution, Figure 4 As shown, the MCU minimum system adopts the STM32 series single-chip microcomputer. In this embodiment, the specific model adopted is STM32F101CBT6.

[0027] To further optimize the present solution, pins 5 and 6 of the MCU minimum system are connected to the crystal oscillator Y1 and then grounded. Pins 5 and 6 of the MCU minimum system are also connected to capacitor C4 and capacitor C3 respectively and then grounded.

[0028] To further optimize this solution, pin 7 of the MCU minimum system is a reset port, and pin 1 of the MCU minimum system is used to connect a power supply voltage, and the power supply voltage is +3.3V.

[0029] To further optimize the solution, the MCU minimum system is connected to a debugging interface and an ARM decoupling capacitor respectively.

[0030] To further optimize the present solution, pin 3 of the universal logic gate chip U8, pin 3 of the universal logic gate chip U9, and pin 3 of the universal logic gate chip U10 are all grounded.

[0031] To further optimize the present solution, the models of the universal logic gate chips U8, U9, and U10 are all NL17SZ08DFT2G.

[0032] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An internal and external synchronous processing circuit suitable for a laser irradiator, comprising an MCU minimum system and an MCU control circuit, characterized in that: It also includes an internal and external synchronization signal processing circuit for enhancing the processing effect of the laser irradiator on the external input signal. The internal and external synchronization signal processing circuit, the MCU minimum system and the MCU control circuit are connected, wherein the internal and external synchronization signal processing circuit processes the input signal of the laser irradiator and sends a signal to the subsequent circuit together with the MCU minimum system and the MCU control circuit. The MCU minimum system adopts the STM32 series single-chip microcomputer and is the circuit core for information processing. The MCU control circuit is controlled by the MCU minimum system and is used to switch the internal and external synchronization working mode of the laser irradiator; The internal and external synchronization signal processing circuit includes universal logic gate chips U8, U9, and U10, and the models of the universal logic gate chips U8, U9, and U10 are all NL17SZ08DFT2G; pin 1 of the universal logic gate chip U8, pin 1 of the universal logic gate chip U10, and pin 2 of the universal logic gate chip U10 are connected to the MCU minimum system, pin 2 of the universal logic gate chip U8 is used to receive the input signal of the laser irradiator, pin 4 of the universal logic gate chip U8 is connected to pin 1 of the universal logic gate chip U9 via resistor R14, and pin 4 of the universal logic gate chip U10 is connected to pin 1 of the universal logic gate chip U9 via resistor R21 Connected to pin 2 of the universal logic gate chip U9, pin 5 of the universal logic gate chip U8 is connected to the power supply voltage and is also grounded via capacitor C42, pin 5 of the universal logic gate chip U10 is connected to the power supply voltage and is also grounded via capacitor C45, pin 4 of the universal logic gate chip U9 is divided into two branches after capacitor C43, one of which is grounded via resistor R20, and the other branch is connected to the MCU control circuit, pin 5 of the universal logic gate chip U9 is connected to the power supply voltage and is also grounded via capacitor C44; The MCU control circuit includes a monostable trigger U12, wherein pins 1, 4 and 6 of the monostable trigger U12 are all grounded, pin 2 of the monostable trigger U12 is connected to pin 4 of the universal logic gate chip U9, pin 3 of the monostable trigger U12 is connected to the power supply voltage, pin 5 of the monostable trigger U12 is connected to the laser illuminator via resistor R30, and is used to switch the internal and external synchronous working mode of the laser illuminator, pin 7 of the monostable trigger U12 is grounded via capacitor C54, pin 8 of the monostable trigger U12 is grounded via capacitor C47 and pin 8 of the monostable trigger U12 is also connected to the power supply voltage, and a resistor R12 is also connected in series between pins 8 and 7 of the monostable trigger U12.

2. The internal and external synchronization processing circuit suitable for a laser irradiator according to claim 1, characterized in that: Pins 5 and 6 of the MCU minimum system are connected to the crystal oscillator Y1 and then grounded.

3. The internal and external synchronization processing circuit suitable for a laser irradiator according to claim 2, characterized in that: Pins 5 and 6 of the MCU minimum system are also connected to capacitors C4 and C3 respectively and then grounded.

4. The internal and external synchronization processing circuit suitable for a laser irradiator according to claim 3, characterized in that: Pin 7 of the MCU minimum system is a reset port, and pin 1 of the MCU minimum system is used to connect the power supply voltage.

5. The internal and external synchronization processing circuit suitable for a laser irradiator according to claim 4, characterized in that: The supply voltage is +3.3V.

6. The internal and external synchronization processing circuit suitable for a laser irradiator according to claim 5, characterized in that: The MCU minimum system is respectively connected with a debugging interface and an ARM decoupling capacitor.

7. The internal and external synchronization processing circuit suitable for a laser irradiator according to claim 1, characterized in that: Pin 3 of the universal logic gate chip U8 , pin 3 of the universal logic gate chip U9 , and pin 3 of the universal logic gate chip U10 are all grounded.

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