ATR pulse laser emission circuit and application thereof

Abstract

The application discloses an ATR pulse laser emission circuit and application thereof, and relates to the technical field of laser emission circuits, and specifically discloses the ATR pulse laser emission circuit, which comprises a data acquisition module, a PS end, a PL end and a laser emission module; wherein the data acquisition module is connected with the PS end, and is used for acquiring image data of a target object; the PS end is connected with the input end of the PL end, and is used for controlling the data acquisition module to generate CMOS data based on the image data and transmitting an ATR control signal to the PL end; the data acquisition module is connected with the input end of the PL end, and is further used for transmitting a field signal to the PL end; the PL end is used for generating a pulse signal with a preset frequency based on the ATR control signal and the field signal; and the output end of the PL end is connected with the laser emission module, and the laser emission module is used for emitting laser with the preset frequency based on the pulse signal. The application improves the emission mode of ATR laser, and in the pulse emission mode, the power consumption of the circuit is greatly reduced, and the mode can be controlled by the counting parameters of the PS end, so that the operation is simple.

Description

Technical Field

[0001] This invention relates to the field of semiconductor integrated circuit technology, and in particular to an ATR pulsed laser emitting circuit and its application. Background Technology

[0002] Continuous ATR (Attenuated Total Reflection) laser emission technology, while capable of stably driving laser diodes or lasers to produce continuous light output, is highly effective for certain applications such as optical communication or specific sensing systems. However, this continuous operating mode is typically accompanied by high power consumption. The power consumption issue mainly stems from the fact that laser devices need to maintain a certain current or voltage level during continuous emission. This not only increases energy consumption but can also cause device heating, affecting system stability and reliability, especially in applications requiring long-term operation.

[0003] In applications where low power consumption is paramount, such as attenuated total internal reflection infrared emission systems and laser TOF (Time of Flight) ranging systems, continuous emission is no longer the optimal choice. These systems often have stringent energy consumption requirements because they may need to be battery-powered or operate in environments with limited energy resources. Summary of the Invention

[0004] The purpose of this invention is to reduce the power consumption of ATR laser emission, thereby improving the stability of the ATR laser emission circuit. To achieve the above objective, this invention provides an ATR pulsed laser emission circuit and its application.

[0005] In a first aspect, embodiments of the present invention provide an ATR pulsed laser emitting circuit, comprising: a data acquisition module, a PS terminal, a PL terminal, and a laser emitting module;

[0006] The data acquisition module is connected to the PS terminal and is used to acquire image data of the target object.

[0007] The PS terminal is connected to the input terminal of the PL terminal. The PS terminal is used to control the data acquisition module to generate CMOS data based on the image data and to transmit ATR control signals to the PL terminal. The CMOS data includes Bayer data, pixel clock, line signal and field signal. The ATR control signals include ATR pre-frame counting parameters, ATR post-frame counting parameters and ATR enable signals.

[0008] The data acquisition module is connected to the input terminal of the PL terminal, and the data acquisition module is also used to transmit the field signal to the PL terminal;

[0009] The PL terminal is used to generate a pulse signal of a preset frequency based on the ATR control signal and the field signal;

[0010] The output terminal of the PL terminal is connected to the laser emitting module, which is used to emit laser light at the preset frequency based on the pulse signal.

[0011] Preferably, the data acquisition module is a camera.

[0012] Preferably, the data acquisition module is a CMOS camera.

[0013] Preferably, the PS terminal is connected to the input terminal of the PL terminal via a connector.

[0014] Preferably, the PS terminal is connected to the input terminal of the PL terminal via a bus connector.

[0015] Preferably, the PS terminal includes a configuration unit and an ATR control signal generation unit, wherein the configuration unit is used to configure the data acquisition module to control the data acquisition module to generate CMOS data based on the image data, and the counting parameter control unit is used to set the ATR frame pre-counting parameter and the ATR frame post-counting parameter to control the ATR laser emission window size.

[0016] Preferably, the PL terminal is an ATR transmitter circuit.

[0017] Preferably, the PL terminal includes a falling edge acquisition unit, an ATR laser emission window generation unit, and a pulse signal generation unit. The falling edge acquisition unit is used to acquire the falling edge of the field signal. The ATR laser emission window generation unit is used to generate an ATR laser emission window based on the ATR frame pre-count parameter and the ATR frame post-count parameter. The pulse signal generation unit is used to continuously flip the falling edge within the ATR laser emission window at a preset frequency to generate a pulse signal of the preset frequency.

[0018] Preferably, the laser emitting module is a laser tube.

[0019] Secondly, embodiments of the present invention provide a semiconductor chip, including the ATR pulsed laser emitting circuit described above.

[0020] This invention discloses an ATR pulsed laser emitting circuit and its application. Compared with existing technologies, its advantages are as follows: Compared with continuous emission, pulsed emission can significantly reduce the energy consumption of the laser. In pulsed emission mode, the laser only turns on for a short time and emits a high-intensity light pulse, and then quickly turns off, thereby avoiding unnecessary energy loss. This on-demand operation mode greatly reduces the average power consumption of the circuit, making it particularly suitable for applications with limited energy supply. The introduction of counting parameter control at the PS end means that the emission of laser pulses no longer depends on traditional hardware switches or complex timing circuits, but can be precisely controlled through software programming. This innovation not only simplifies the operation process and reduces system complexity, but also improves the accuracy and flexibility of control. Through the software interface at the PS end, users can intuitively set the counting parameters without needing to understand the underlying hardware details. The combination of pulsed emission mode and PS end counting parameter control makes the operation of the laser system exceptionally simple. Users can complete complex emission parameter settings through simple interface operations, greatly reducing the operating threshold and allowing non-professionals to easily get started. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an ATR pulsed laser emitting circuit according to an embodiment of the present invention;

[0022] Figure 2 This is another structural schematic diagram of an ATR pulsed laser emitting circuit according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the PS terminal structure in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the PL end structure in an embodiment of the present invention;

[0025] Figure 5 This is a comparative schematic diagram of continuous ATR transmission and pulsed ATR transmission in an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of a semiconductor chip according to an embodiment of the present invention. Detailed Implementation

[0027] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0028] like Figure 1 As shown, this embodiment of the invention provides an ATR pulsed laser emitting circuit, including: a data acquisition module, a PS terminal, a PL terminal, and a laser emitting module.

[0029] The data acquisition module is connected to the PS terminal and is used to acquire image data of the target object. Specifically, the data acquisition module is a camera. More specifically, the data acquisition module is a CMOS camera.

[0030] The PS terminal is connected to the input terminal of the PL terminal. The PS terminal is used to control the data acquisition module to generate CMOS data based on image data and to transmit ATR control signals to the PL terminal. The ATR control signals include ATR pre-frame count parameters, ATR post-frame count parameters, and ATR enable signals.

[0031] like Figure 2 As shown, the PS terminal is connected to the input terminal of the PL terminal via a connector. Specifically, the PS terminal is connected to the input terminal of the PL terminal via a connector. In this embodiment, the bus connector is an AXI bus connector, which is a high-performance, high-bandwidth, low-latency connector designed based on the AXI bus protocol, and can be used for device connection and data transmission in on-chip systems. It is understood that in the semiconductor circuit field, the PS terminal has a specific meaning; it is usually related to the chip's architecture. The PS terminal, or Processing System terminal, is the part of the chip responsible for processing and control, similar to a microprocessor or microcontroller. The PS terminal typically includes one or more processor cores, a memory controller, peripheral interfaces, etc., used to execute operating systems, run applications, process data, and perform other tasks. In chip development and application, the PS terminal provides rich interfaces and resources, enabling developers to easily implement various complex control and processing functions.

[0032] like Figure 3 As shown, the PS terminal includes a configuration unit and an ATR control signal generation unit. On one hand, the configuration unit configures the data acquisition module to control it to generate CMOS data based on image data. The CMOS data includes Bayer data, pixel clock, line signal, and field signal. Specifically, in this embodiment, the configuration unit configures the relevant registers of the camera to control the camera to generate 8-bit digital Bayer data, 1-bit digital pixel clock, 1-bit digital line signal, and 1-bit digital field signal based on image data. On the other hand, the counting parameter control unit sets the ATR frame pre-counting parameter and the ATR frame post-counting parameter to control the size of the ATR laser emission window. The ATR frame pre-counting parameter represents the count before the field signal is pulled low, and the ATR frame post-counting parameter represents the count after the field signal is pulled low. The magnitudes of the two parameters are set by the counting parameter control unit, thereby enabling the PS terminal to control the size of the ATR laser emission window. Specifically, the ATR laser emission window size is calculated using the following formula:

[0033] width = (count1 + count2) * T

[0034] Where width represents the size of the ATR laser emission window, count1 represents the count before the ATR frame, count2 represents the count after the ATR frame, and T represents the clock cycle.

[0035] The data acquisition module is connected to the input terminal of the PL terminal, and the data acquisition module is also used to transmit field signals to the PL terminal.

[0036] The PL terminal is used to generate pulse signals of a preset frequency based on ATR control signals and field signals. Specifically, the PL terminal is an ATR transmitter circuit. It's understandable that in the field of semiconductor circuits, the PL terminal has a specific meaning; it is usually related to the chip's architecture. The PL terminal stands for Programmable Logic terminal, which is the part of the chip used to implement user-defined logic. The PL terminal consists of a large number of programmable logic units and interconnect resources, allowing developers to configure and program it according to their needs. By programming the PL terminal, developers can implement various complex digital circuits, algorithms, and signal processing functions.

[0037] like Figure 4 As shown, the PL terminal includes a falling edge acquisition unit, an ATR laser emission window generation unit, and a pulse signal generation unit. The falling edge acquisition unit is used to acquire the falling edge of the field signal. The ATR laser emission window generation unit is used to generate an ATR laser emission window based on the ATR frame pre-count parameters and ATR frame post-count parameters. The pulse signal generation unit is used to continuously flip the falling edge within the ATR laser emission window at a preset frequency to generate a pulse signal of the preset frequency. Specifically, in this embodiment, the pulse signal generation unit continuously flips the falling edge within the ATR laser emission window (from low level to high level, from high level to low level, from low level to high level...) to generate a pulse signal at a frequency of 50MHz, thereby greatly reducing circuit power consumption.

[0038] The output of the PL terminal is connected to the laser emitting module, which emits laser light at a preset frequency based on a pulse signal. Specifically, the laser emitting module is a laser tube. Figure 5 As shown, compared to continuous ATR emission, which involves keeping the pulse signal high within the ATR laser emission window to drive the laser tube to emit laser stably within the ATR laser emission window, the laser emission module in this embodiment emits laser pulses within the ATR laser emission window based on the pulse signal, which can effectively reduce circuit power consumption.

[0039] This invention discloses an ATR pulsed laser emitting circuit. Compared to continuous emission, pulsed emission significantly reduces laser energy consumption. In pulsed emission, the laser only turns on for a short time to emit a high-intensity light pulse, then quickly turns off, thus avoiding unnecessary energy loss. This on-demand operation mode greatly reduces the average power consumption of the circuit, making it particularly suitable for applications with limited energy supply. The introduction of counting parameter control at the PS end means that laser pulse emission no longer relies on traditional hardware switches or complex timing circuits, but can be precisely controlled through software programming. This innovation not only simplifies the operation process and reduces system complexity, but also improves control accuracy and flexibility. Through the software interface at the PS end, users can intuitively set counting parameters without needing to understand the underlying hardware details. The combination of pulsed emission and PS-end counting parameter control makes the operation of the laser system exceptionally simple. Users can complete complex emission parameter settings through simple interface operations, greatly lowering the operating threshold and allowing even non-professionals to easily get started.

[0040] like Figure 6 As shown, an embodiment of the present invention provides a semiconductor chip, including the ATR pulsed laser emitting circuit described above.

[0041] In one specific embodiment, the above-mentioned ATR pulsed laser emitting circuit is implemented on a ZYNQ chip and connected to a CMOS camera board. The CMOS camera board has a camera embedded on it and IO pins for external connection. It is connected to the corresponding IO interface of the ZYNQ chip through a flexible circuit board, and the pulse signal for driving the laser tube is connected to the corresponding pin of the laser tube, thereby driving the laser tube to emit laser light.

[0042] The semiconductor chip provided in this embodiment has the same beneficial effects as the ATR pulsed laser emitting circuit provided in the previous embodiment regarding the ATR pulsed laser emitting circuit, and will not be repeated here.

[0043] In summary, this invention provides an ATR pulsed laser emitting circuit and its application. Compared to continuous emission, pulsed emission significantly reduces laser energy consumption. In pulsed emission, the laser only turns on for a short time to emit a high-intensity light pulse, then quickly turns off, thus avoiding unnecessary energy loss. This on-demand operation mode drastically reduces the circuit's average power consumption, making it particularly suitable for applications with limited energy supply. The introduction of counting parameter control at the PS end means that laser pulse emission no longer relies on traditional hardware switches or complex timing circuits, but can be precisely controlled through software programming. This innovation not only simplifies the operation process and reduces system complexity but also improves control accuracy and flexibility. Through the PS end software interface, users can intuitively set counting parameters without needing to understand the underlying hardware details. The combination of pulsed emission and PS end counting parameter control makes operating the laser system exceptionally simple. Users can complete complex emission parameter settings through a simple interface, greatly lowering the operational threshold and allowing even non-professionals to easily get started.

[0044] The various embodiments in this specification are described using progressive examples. The same or similar parts of the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. It should be noted that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification.

[0045] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. An ATR pulsed laser firing circuit, comprising: include: Data acquisition module, PS terminal, PL terminal and laser emission module; The data acquisition module is connected to the PS terminal and is used to acquire image data of the target object. The PS terminal is connected to the input terminal of the PL terminal. The PS terminal is used to control the data acquisition module to generate CMOS data based on the image data and to transmit ATR control signals to the PL terminal. The CMOS data includes Bayer data, pixel clock, line signal and field signal. The ATR control signals include ATR pre-frame counting parameters, ATR post-frame counting parameters and ATR enable signals. The data acquisition module is connected to the input terminal of the PL terminal, and the data acquisition module is also used to transmit the field signal to the PL terminal; The PL terminal is used to generate a pulse signal of a preset frequency based on the ATR control signal and the field signal; The output terminal of the PL terminal is connected to the laser emitting module, which is used to emit laser light at the preset frequency based on the pulse signal. The PL terminal includes a falling edge acquisition unit, an ATR laser emission window generation unit, and a pulse signal generation unit. The falling edge acquisition unit is used to acquire the falling edge of the field signal. The ATR laser emission window generation unit is used to generate an ATR laser emission window based on the ATR frame pre-counting parameters and the ATR frame post-counting parameters. The pulse signal generation unit is used to continuously flip the falling edge within the ATR laser emission window at a preset frequency to generate a pulse signal of the preset frequency.

2. The ATR pulsed laser firing circuit of claim 1, wherein, The data acquisition module is a camera.

3. The ATR pulsed laser firing circuit of claim 2, wherein, The data acquisition module is a CMOS camera.

4. The ATR pulsed laser firing circuit of claim 1, wherein, The PS terminal is connected to the input terminal of the PL terminal via a connector.

5. The ATR pulsed laser firing circuit of claim 4, wherein, The PS terminal is connected to the input terminal of the PL terminal via a bus connector.

6. The ATR pulsed laser firing circuit of claim 1, wherein, The PL terminal is an ATR transmitter circuit.

7. The ATR pulsed laser firing circuit of claim 1, wherein, The laser emitting module is a laser tube.

8. A semiconductor chip, characterized by Includes the ATR pulsed laser emitting circuit as described in any one of claims 1 to 7.

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