Laser control method and device, electronic equipment and laser

Abstract

The embodiment of the invention provides a laser control method and device, electronic equipment and a laser. The method comprises the following steps: determining a target pump source temperature corresponding to a pump source in the laser, wherein the target pump source temperature is the pump source temperature when the pump source in the laser can operate according to a preset use condition in the operation process of the laser; determining target cooling parameter information adopted during operation of the laser based on the target pump source temperature, wherein the target cooling parameter information is used for indicating circulating cooling liquid temperature and / or circulating cooling liquid flow required for cooling the laser to enable a pump source in the laser to reach the target pump source temperature; and based on the target cooling parameter information, controlling a water cooling machine associated with a laser to supply circulating cooling liquid. According to the scheme, the laser can be protected, and laser damage or power reduction caused by pump burning can be reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of laser technology, and in particular to a laser control method, device, electronic equipment, and laser. Background Art

[0002] With the development of laser technology, the power of lasers continues to rise. In order to meet the demand for high-power output, the laser has to be equipped with more pump sources. However, this has caused many problems. The consistency of the increased pump sources has deteriorated, and the temperature of each pump source is uneven. Clients often purchase water chillers on their own instead of using the original products of the laser manufacturer. These self-purchased water chillers are difficult to meet the strict requirements of the laser manufacturer for water temperature and flow. Especially in winter, after adding antifreeze, it is more difficult for the water chiller to ensure that the water temperature and water flow meet the standards at the same time, causing the pump source to frequently burn out due to excessive temperature. At present, most lasers recommend that customers use a fixed flow rate and water temperature. When designing, the manufacturer reserves a heat dissipation margin based on a certain percentage (such as 90% or 80%) of the recommended flow rate and water temperature. This not only causes a huge waste of design resources, but also cannot eliminate the risk of pump damage caused by the customer's selected water chiller not being within the margin range. Improvement is urgently needed. Summary of the Invention

[0003] The present invention provides a laser control method, device, electronic equipment and laser, so as to protect the laser and reduce laser damage or power reduction caused by pump burnout.

[0004] In a first aspect, an embodiment of the present invention provides a laser control method, the method comprising:

[0005] Determining a target pump source temperature corresponding to a pump source in the laser, wherein the target pump source temperature is a pump source temperature at which the pump source in the laser can operate according to predetermined operating conditions during operation of the laser;

[0006] determining target cooling parameter information used when the laser is running based on the target pump source temperature, wherein the target cooling parameter information is used to indicate the circulating coolant temperature and / or circulating coolant flow rate required to cool the laser so that the pump source in the laser reaches the target pump source temperature;

[0007] Based on the target cooling parameter information, a water chiller associated with the laser is controlled to supply circulating coolant.

[0008] In a second aspect, an embodiment of the present invention further provides a laser control device, the device comprising a first temperature sensor, a second temperature sensor, a flow meter, and a control module, wherein:

[0009] The first temperature sensor is connected to the pump source in the laser to detect the temperature of the pump source in real time;

[0010] The second temperature sensor is provided in a coolant circulation pipeline of a water chiller associated with the laser, and is used to monitor the temperature of the circulating coolant in real time;

[0011] The flow meter is arranged in the coolant circulation pipeline and is used to monitor the flow rate of the circulating coolant in real time;

[0012] The control module is connected to the first temperature sensor, the second temperature sensor, and the flow meter, respectively, and is configured to perform the following operations:

[0013] Determining a target pump source temperature corresponding to a pump source in the laser, wherein the target pump source temperature is a pump source temperature at which the pump source in the laser can operate according to predetermined operating conditions during operation of the laser;

[0014] determining target cooling parameter information used when the laser is running based on the target pump source temperature, wherein the target cooling parameter information is used to indicate the circulating coolant temperature and / or circulating coolant flow rate required to cool the laser so that the pump source in the laser reaches the target pump source temperature;

[0015] It is used to control the water chiller associated with the laser to supply circulating coolant based on the target cooling parameter information.

[0016] In a third aspect, an embodiment of the present invention further provides an electronic device, comprising:

[0017] at least one processor; and

[0018] a memory communicatively connected to the at least one processor; wherein,

[0019] The memory stores a computer program that can be executed by the at least one processor. The computer program is executed by the at least one processor to enable the at least one processor to perform the laser control method according to any one of the above embodiments.

[0020] In a fourth aspect, an embodiment of the present invention further provides a laser, which includes the laser control device described in the above embodiment.

[0021] The technical solution of the embodiment of the present invention takes into account that a variety of electronic components and optical components are integrated inside the pump source of the laser. Excessively high or low temperatures will accelerate the aging process of these components. When the pump source of the laser is at the target pump source temperature, the energy conversion process inside the pump source will be optimized. The target pump source temperature can ensure that the pump source operates stably according to the predetermined operating conditions. The stable pump source temperature mainly depends on a good cooling system to maintain, which is not only of great significance to the pump source itself, but also plays a good protective role for the laser. The target cooling parameter information is determined based on the target pump source temperature. The temperature and flow of the circulating coolant can be accurately adjusted according to the actual heat dissipation requirements of the pump source. Compared with the use of fixed coolant temperature and flow, which is very easy to cause energy waste, the present application solution can dynamically adjust the cooling parameters according to actual needs, effectively avoiding unnecessary cooling power consumption. By accurately controlling the circulating coolant supply of the water chiller, it can ensure that the pump source is always in a safe operating temperature range, making the output performance of the laser more stable and reliable, and greatly reducing the risk of laser failure caused by pump source overheating.

[0022] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0024] Figure 1 1 is a flow chart of a laser control method provided by an embodiment of the present invention;

[0025] Figure 2 is a flow chart of another laser control method provided by an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of a curve showing changes in pump source temperature in laser control provided by an embodiment of the present invention;

[0027] Figure 4 This is a specific implementation flow chart of laser control provided by an embodiment of the present invention;

[0028] Figure 5 This is a schematic structural diagram of a laser control device provided by an embodiment of the present invention;

[0029] Figure 6It is a structural diagram of an electronic device for implementing a laser control method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0030] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0031] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0032] As used herein, the term "including" and its variations are open-ended, i.e., "including but not limited to." The term "based on" means "based, at least in part, on." The term "one embodiment" means "at least one embodiment," the term "another embodiment" means "at least one additional embodiment," and the term "some embodiments" means "at least some embodiments." Other terms are defined in the following description.

[0033] It should be noted that the concepts of "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0034] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0035] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0036] Figure 1 This is a flow chart of a laser control method provided in an embodiment of the present invention. The embodiment of the present invention is applicable to situations where the circulating coolant required by a water-cooling machine associated with a laser is precisely controlled. The laser control method can be executed by a laser control device, which can be implemented in the form of software and / or hardware and is generally integrated into any electronic device with network communication capabilities, such as a mobile terminal, a PC, or a server.

[0037] like Figure 1 As shown, the laser control method according to the embodiment of the present invention may include the following process:

[0038] S110 , determining a target pump source temperature corresponding to a pump source in the laser, where the target pump source temperature is a pump source temperature at which the pump source in the laser can operate according to predetermined operating conditions during operation of the laser.

[0039] The pump source in a laser is used to provide energy to the laser medium to generate laser light. The pump source generates heat during operation. For example, in a solid-state laser, if the pump source is a high-power flash lamp, the pump source will generate a large amount of heat during the light emission process. A water chiller is used to cool the laser (including the pump source). The water chiller removes heat from the pump source and other heat-generating components in the laser through circulating coolant, ensuring that the laser can operate at the appropriate temperature.

[0040] The power of the pump source directly affects the output power of the laser. Increasing the pump source power increases the laser energy generated by the laser, but also the heat generated, placing higher demands on the cooling capacity of the water chiller. For example, in a solid-state laser using a laser diode as the pump source, when the laser diode drive current is increased to increase the pump power, the laser output power increases, and the water chiller needs to increase the coolant flow rate or reduce the coolant temperature to cope with the increased heat.

[0041] A water chiller is a device that achieves cooling through the circulation of coolant. Its basic principle is to use a coolant (such as water or a specialized coolant) to flow in a closed circulation system, absorbing heat and then dissipating it through a heat sink. For example, the main components of a water chiller include a water tank, a water pump, a radiator, and a temperature controller. The water tank stores the coolant, the water pump drives the coolant to circulate between the water chiller and the laser, the radiator cools the coolant after absorbing heat, and the temperature controller monitors and regulates the temperature and flow of the coolant. In a laser system, a water chiller is used to maintain the laser's operating temperature within an appropriate range. The water chiller absorbs the heat generated by the pump source in the laser through circulating coolant, preventing damage to the optical and electronic components inside the laser due to overheating.

[0042] Among them, poor cooling performance of the water chiller can affect the performance and lifespan of the pump source and laser. If the water chiller malfunctions, such as poor coolant circulation or temperature control failure, the pump source and laser may become unstable due to overheating. For example, excessively high temperatures may cause the pump source's luminous efficiency to decrease (in the case of optical pumping) or the performance of the laser's optical components to deteriorate. Conversely, a good water chiller can enable the pump source and laser to operate in a stable temperature environment, helping to improve the efficiency and stability of the laser.

[0043] The target pump source temperature can be a temperature value that is critical to the operation of the laser pump source. It is determined after comprehensively considering many factors such as the physical properties, chemical properties, electrical performance of the laser pump source, and the overall operation requirements of the laser. At this specific target pump source temperature, the laser pump source can operate at an optimal state and achieve efficient energy conversion, such as efficiently converting electrical energy into light energy for pumping the laser medium, while ensuring the stable operation of the electronic and optical components inside the pump source and reducing performance degradation and component aging caused by temperature fluctuations. Different types of laser pump sources may have different target pump source temperatures. For example, the target pump source temperature ranges of solid-state laser pump sources and semiconductor laser pump sources are different.

[0044] Among them, the working principle and performance characteristics of the laser pump source can be studied in depth. Through experimental testing, theoretical analysis, and experience summarizing similar products, the performance data of the pump source at different temperatures, such as energy conversion efficiency, output light power stability, and component life, can be obtained. Based on these performance data of the pump source, combined with the actual use scenario of the laser and the expected operating results, a temperature range is determined that allows the pump source to achieve optimal operating conditions under various predetermined conditions. The center value or optimal value of this range is the target pump source temperature. Optionally, the target pump source temperature refers to the ideal temperature range in which the pump source can achieve optimal performance, highest efficiency, and longest service life during operation. For example, for a high-power solid-state laser pump source used for laser cutting, after extensive experiments, it was found that when the pump source temperature is between 25-30°C, the pump source's energy conversion efficiency is the highest, the performance of the internal components is the most stable, and it can stably provide energy to the laser. In this case, 27°C can be determined as the target pump source temperature.

[0045] S120. Determine target cooling parameter information used when the laser is running based on the target pump source temperature. The target cooling parameter information is used to indicate the circulating coolant temperature and / or circulating coolant flow rate required to cool the laser so that the pump source in the laser reaches the target pump source temperature.

[0046] The circulating coolant, typically water or a specially formulated coolant, circulates between the water chiller and the laser. It absorbs the heat generated by the laser's pump source and then dissipates it through the water chiller's heat sink, thereby cooling the pump source. The thermophysical properties of the circulating coolant, such as specific heat capacity and thermal conductivity, significantly influence the cooling effect. Coolants with high specific heat capacity absorb more heat while experiencing a smaller temperature rise, while coolants with high thermal conductivity dissipate heat more quickly.

[0047] During the operation of the laser, the circulating coolant circulates between the water chiller and the laser, and its temperature directly affects the heat dissipation effect of the laser. For example, in a fiber laser, the appropriate water temperature (that is, the circulating coolant temperature) can effectively take away the heat generated during the laser generation process. Different types of lasers have different requirements for the circulating coolant temperature. If the circulating coolant temperature is too high, the optical components inside the laser (such as laser crystals, lenses, etc.) will be thermally deformed, thereby affecting the quality of the laser beam. For example, thermal deformation may cause the focusing performance of the laser to deteriorate, the spot size to become larger, and the accuracy of laser processing to be reduced. If the circulating coolant temperature is too low, it may cause temperature stress in the components inside the laser and may also damage the components. At the same time, the appropriate circulating coolant temperature helps to maintain the stable performance of the laser, ensure the stability of its output power and the consistency of the beam quality.

[0048] The circulating coolant flow rate refers to the volume of circulating coolant used to cool the laser that passes through the laser per unit time. It is usually expressed in liters per minute (L / min), reflecting the speed at which the coolant removes heat from the laser. The circulating coolant flow rate is closely related to the heat dissipation efficiency of the laser. Sufficient flow can promptly remove the heat generated by the laser during operation to prevent local overheating. For high-power lasers, due to the large amount of heat they generate, a larger coolant flow rate is required to ensure heat dissipation. For example, a 1000W solid-state laser may require a coolant flow rate of 15-20L / min. If the flow rate is insufficient, the heat cannot be removed in time, which will cause the laser temperature to overheat, affecting its performance and life.

[0049] The target cooling parameter information is a set of parameters related to cooling, which is mainly determined by how to make the pump source in the laser reach the target pump source temperature. The target cooling parameter information includes two key parameters: the circulating coolant temperature and the circulating coolant flow rate, or one of them (depending on the cooling requirements of the specific laser). These target cooling parameter information is calculated based on the target pump source temperature and factors such as the heat dissipation structure of the laser and the pump source heat generation rate. For example, if the pump source generates heat at a fast rate, a lower circulating coolant temperature and a larger circulating coolant flow rate may be required to remove heat in time to maintain the target pump source temperature.

[0050] Optionally, after determining the target pump source temperature, the corresponding target cooling parameters can be determined based on this target pump source temperature. This requires consideration of multiple factors, such as the laser's heat dissipation structure design, the pump source's heat generation model, and the characteristics of the circulating coolant. By establishing a heat transfer model, the temperature change of the laser pump source under different combinations of circulating coolant temperature and circulating coolant flow rate can be calculated. Then, through an optimization algorithm or empirical formula, the optimal combination of circulating coolant temperature and circulating coolant flow rate that enables the pump source to reach and maintain the target pump source temperature is found. This is the target cooling parameter information. For example, if the heat transfer model calculates that when the circulating coolant temperature is 20°C and the circulating coolant flow rate is 15L / min, the pump source temperature can be effectively controlled near the target pump source temperature of 27°C, then this set of parameters constitutes part of the target cooling parameter information.

[0051] S130 : Controlling a water chiller associated with the laser to supply circulating coolant based on the target cooling parameter information.

[0052] After obtaining the target cooling parameter information, it can be applied to the actual water-cooling system. A water-cooling system is a device responsible for providing circulating coolant and typically includes components such as a water tank, a water pump, a radiator, and a temperature controller. The target cooling parameter information is transmitted to the water-cooling system's control system via a communication interface with the water-cooling system. Based on this target cooling parameter information, the water-cooling system's control system adjusts the water pump speed to control the circulating coolant flow rate and, if applicable, the cooling or heating device to control the circulating coolant temperature. For example, if the target cooling parameter information requires a coolant temperature of 20°C and a flow rate of 15 L / min, the water-cooling system's control system adjusts the water pump speed to achieve a coolant flow rate of 15 L / min and simultaneously activates the refrigeration device to reduce the coolant temperature to 20°C. The coolant is then transported through the circulation pipeline to the laser, cooling the pump source.

[0053] The technical solution of the embodiment of the present invention takes into account that a variety of electronic components and optical components are integrated inside the pump source of the laser. Excessively high or low temperatures will accelerate the aging process of these components. When the pump source of the laser is at the target pump source temperature, the energy conversion process inside the pump source will be optimized. The target pump source temperature can ensure that the pump source operates stably according to the predetermined operating conditions. The stable pump source temperature mainly depends on a good cooling system to maintain, which is not only of great significance to the pump source itself, but also plays a good protective role for the laser. The target cooling parameter information is determined based on the target pump source temperature. The temperature and flow of the circulating coolant can be accurately adjusted according to the actual heat dissipation requirements of the pump source. Compared with the use of fixed coolant temperature and flow, which is very easy to cause energy waste, the present application solution can dynamically adjust the cooling parameters according to actual needs, effectively avoiding unnecessary cooling power consumption. By accurately controlling the circulating coolant supply of the water chiller, it can ensure that the pump source is always in a safe operating temperature range, making the output performance of the laser more stable and reliable, and greatly reducing the risk of laser failure caused by pump source overheating.

[0054] Figure 2 A flow chart of another laser control method provided in an embodiment of the present invention. The technical solution of this embodiment further optimizes the process of determining the target cooling parameter information used during laser operation based on the target pump source temperature in the aforementioned embodiment on the basis of the technical solution of the aforementioned embodiment. This embodiment can be combined with various optional solutions in one or more of the aforementioned embodiments.

[0055] like Figure 2 As shown, the laser control method according to the embodiment of the present invention may include the following process:

[0056] S210 , determining a target pump source temperature corresponding to a pump source in the laser, where the target pump source temperature is a pump source temperature at which the pump source in the laser can operate according to predetermined operating conditions during operation of the laser.

[0057] S220. Determine reference temperature control configuration information associated with the laser, where the reference temperature control configuration information is used to indicate the maximum pump source temperature that can be reached by the pump source in the laser over time at different circulating coolant temperatures as the circulating coolant used by the laser undergoes an equal-step temperature adjustment; and the maximum pump source temperature that can be reached by the pump source in the laser over time at different circulating coolant flow rates as the circulating coolant used by the laser undergoes an equal-step flow adjustment.

[0058] The reference temperature control configuration records the variation of the laser pump source temperature under different circulating coolant temperatures and different circulating coolant flow rates. Specifically, it covers two key dimensions of information: first, the maximum temperature that the laser pump source can reach at different coolant temperature values during the operation process under different coolant temperature values when the circulating coolant temperature is adjusted in steps; second, the maximum temperature that the laser pump source can reach at different coolant flow rates during the operation process under different coolant flow rates.

[0059] Equal-step temperature adjustment refers to gradually changing the circulating coolant temperature at pre-set fixed temperature intervals. For example, if the initial coolant temperature is 25°C and the adjustment step is set to 1°C, the temperature will be adjusted to 24°C, 23°C, and so on. This regular adjustment method facilitates observation and analysis of the pump source temperature's response to changes in coolant temperature, providing data support for determining optimal cooling parameters. For equal-step temperature adjustment, a series of different initial circulating coolant temperatures are set, such as 20°C, 22°C, and 24°C, and equal-step temperature adjustments are performed according to the set temperature steps. The laser is continuously operated at each circulating coolant temperature value, while a high-precision temperature sensor is used to monitor the pump source temperature in real time. The maximum temperature reached by the pump source at each operating time is recorded. For example, at a coolant temperature of 22°C, the pump source reaches a maximum temperature of 28°C after one hour of operation, and 30°C after two hours of operation, and so on.

[0060] Step-by-step flow adjustment can be similar to step-by-step temperature adjustment, regularly varying the circulating coolant flow rate at specific intervals. For example, if the initial flow rate is 10 L / min and the adjustment steps are 2 L / min, the flow rate will change to 12 L / min, 14 L / min, and so on. This method can be used to explore the temperature variation of the pump source under different circulating coolant flow rates and identify the flow setting that best maintains the pump source at the highest temperature. For step-by-step flow adjustment, a series of different initial flow rates are also set, such as 8 L / min, 10 L / min, 12 L / min, and so on, and adjustments are made according to the set flow steps. The laser is operated at each flow rate, and the maximum temperature reached by the pump source during different operating times is monitored and recorded. The pump source temperature data acquired under different temperature and flow adjustment conditions is collated and summarized to form a complete reference temperature control configuration.

[0061] As an optional but non-limiting implementation solution, the reference temperature control configuration information provided in the embodiment of the present invention is obtained through the following steps A1-A3:

[0062] Step A1: Determine a reference pump source from the multiple pump sources included in the laser, wherein the maximum pump source temperature that can be reached by the reference pump source as the laser operates for a longer period of time is greater than the maximum pump source temperature that can be reached by other pump sources other than the reference pump source among the multiple pump sources included in the laser as the laser operates for a longer period of time.

[0063] Step A2: Control the circulating coolant of the water chiller associated with the laser to perform step-by-step temperature adjustment to obtain the temperature of the reference pump source in the laser at different circulating coolant temperatures.

[0064] Step A3: Control the circulating coolant of the water chiller associated with the laser to perform step-by-step flow adjustment to obtain the temperature of the reference pump source in the laser under different circulating coolant flow rates.

[0065] A reference pump source is a special pump source selected from among the many pump sources in a laser. Its key characteristic is that, as the laser's operating time increases, the reference pump source reaches a higher maximum temperature than the other pump sources. The reason for choosing a reference pump source is that if the reference pump source in the laser is kept at the correct temperature, the temperatures of the other pump sources in the laser will also be within a safe range.

[0066] See also Figure 3 and Figure 4 During the operation of the laser, the temperature changes of all pump sources in the laser are continuously monitored. A high-precision temperature sensor can be used to record the temperature value of each pump source at different time points in real time. As time goes by, the maximum temperature reached by each pump source is compared. For example, after the laser has been running for 1 hour, the maximum temperature of pump source 1 is recorded as 32°C, pump source 2 is 30°C, pump source 3 is 35°C, pump source 4 is 31°C, and pump source 5 is 33°C. After continuing to run for a period of time, the maximum temperature of each pump source is recorded again. After multiple monitoring and comparisons, the pump source that can always reach the highest temperature during the entire operation process is determined to be the reference pump source. The significance of selecting a reference pump source is that as long as the temperature of the reference pump source is effectively controlled, the temperatures of other pump sources can also be within a reasonable range, thereby simplifying subsequent research on the temperature control of all pump sources.

[0067] After the reference pump source is determined, set the initial temperature of the circulating coolant in the water chiller, such as 25°C. Let the laser run at this temperature for a period of time, while closely monitoring the temperature changes of the reference pump source. For example, after running for 30 minutes, record the temperature of the reference pump source as 30°C. Then, according to the set temperature step, reduce the coolant temperature by 1°C to 24°C, and let the laser run for a period of time again, and record the temperature of the reference pump source at this time, assuming it is 28°C. Repeat this process, reducing it by 1°C each time, and continue to record the temperature of the reference pump source at different coolant temperatures. In this way, a curve of the relationship between the coolant temperature and the reference pump source temperature can be drawn, and it can be clearly seen how the reference pump source temperature changes as the coolant temperature decreases, providing data support for the subsequent determination of the appropriate coolant temperature.

[0068] In addition, the initial flow rate of the circulating coolant in the water chiller can be set, such as 10L / min. Run the laser at this flow rate and monitor the temperature changes of the reference pump source. After running for a period of time, record the reference pump source temperature, assuming it is 32°C. Then, according to the set flow rate step, increase the flow rate by 2L / min to 12L / min, run the laser again and record the reference pump source temperature, assuming it becomes 30°C. Continue to increase the flow rate in steps of 2L / min, and record the temperature of the reference pump source at different flow rates in turn. In this way, the corresponding relationship between different circulating coolant flow rates and reference pump source temperatures can be obtained, and it can be analyzed at which flow rate the temperature of the reference pump source can be optimally controlled, providing a basis for determining the appropriate coolant flow rate.

[0069] For example, the laser sends a signal to the water chiller to reduce the circulating coolant flow of the water chiller in a step-by-step manner (if the water chiller has a margin, the flow can also be increased). The reduction value can be selected as 1L or 2L. It is not recommended to be too large, which may easily cause the pump source temperature to rise too high. When reducing by 1L, re-collect multiple sets of data, and when reducing by 2L, re-measure multiple sets of data. Collect 2 to 4 sets of flow in sequence. At this point, the corresponding relationship between the circulating coolant flow rate and the maximum pump source temperature of the laser can be obtained as follows: The laser sends a signal to the water cooler to reduce the circulating coolant temperature of the water cooler in a step-by-step manner. The reduction value can be selected as 1°C or 2°C. Since the water cooler has a limited cooling capacity, it only needs to be adjusted between the minimum temperature value and the set temperature value T 水0 Select 2 to 4 groups of circulating coolant temperatures and you can get Then we can get the relationship between water temperature and pump source temperature:

[0070] By using the above method, by determining the reference pump source, it is possible to focus on the pump source that is most critical to the temperature control of the entire laser. Since the temperature of the reference pump source is the most difficult to control, once the temperature of the reference pump source stabilizes within the appropriate range, the temperatures of the other pump sources will inevitably be within the controllable range. This makes subsequent research and control of the pump source temperature more efficient, avoids the complex analysis and control of each pump source one by one, and saves time and resources. In addition, through equal-step temperature and flow adjustment, it is possible to fully obtain the temperature data of the reference pump source under different coolant temperature and flow conditions. Compared with arbitrarily adjusting the circulating coolant temperature and circulating coolant flow, the equal-step adjustment method is more scientific and systematic, and can more accurately find the coolant temperature and flow combination that makes the reference pump source temperature reach the optimal state. Based on these detailed data, the water chiller associated with the laser can be optimized to determine the most suitable circulating coolant temperature and flow, so that the water chiller can cool the laser in the most effective way.

[0071] As an optional but non-limiting implementation, see Figure 4 , determining a reference pump source from a plurality of pump sources included in the laser, comprising the following steps A11-A12:

[0072] Step A11: for each pump source included in the laser, start the water chiller associated with the laser to supply circulating coolant to the laser according to the preset circulating coolant temperature and preset circulating coolant flow rate.

[0073] Step A12: Perform multiple measurements on the temperature measurement points of each pump source at millisecond intervals to obtain multiple continuous temperature measurement values of each pump source; generate a temperature rise curve for each pump source in the laser based on the multiple continuous temperature measurement values of each pump source; and determine a reference pump source from the multiple pump sources included in the laser based on the temperature rise curves of the individual pump sources.

[0074] The preset circulating coolant temperature and preset circulating coolant flow rate are the chiller operating parameters pre-set before the laser is actually operated. The preset circulating coolant temperature is a predetermined coolant temperature determined based on factors such as the heat dissipation requirements of the laser and its pump source, as well as material properties. For example, it is set to 25°C to provide a suitable cooling environment for the pump source. The preset circulating coolant flow rate is the predetermined coolant delivery volume per unit time, such as 10L / min. An appropriate flow rate ensures that the coolant effectively removes heat generated by the pump source. These preset values serve as the basis for subsequent pump source temperature monitoring and analysis.

[0075] A temperature measurement point can be a specific location on each pump where a temperature sensor is installed to measure the pump's temperature. The selection of the temperature measurement point is crucial; it should accurately reflect the overall temperature changes of the pump. For example, for semiconductor pumps, the temperature measurement point is typically located at the contact point between the chip and the heat sink, as this location best reflects the accumulation of heat generated by the pump during operation.

[0076] A temperature rise curve is plotted with time as the horizontal axis and pump source temperature as the vertical axis. Generated by continuously measuring data from the pump source's temperature measurement points, it visually illustrates the temporal trend of the pump source's temperature. For example, a temperature rise curve might show a rapid initial rise followed by a gradual leveling off, reflecting the pump source's progress from startup to thermal equilibrium. By analyzing the temperature rise curve, we can understand the pump source's heat generation characteristics, heat dissipation effectiveness, and the time required to reach a stable temperature.

[0077] The reference pump source is a representative pump source selected from the laser's multiple pump sources. This selection is based on the temperature rise curves of the individual pump sources. Generally, the pump source with the fastest temperature rise, the highest ultimate temperature, or the most complex temperature rise process is chosen as the reference pump source. Effectively controlling the temperature of the reference pump source ensures that the other pump sources remain within a safe operating temperature range, which is crucial for simplifying the temperature control strategy for the entire laser.

[0078] See also Figure 4 , the laser starts and gives the water cooler a start signal at the same time. At this time, the laser outputs according to the rated power. The water cooler gives the preset circulating coolant temperature T and the preset circulating coolant flow rate Q0 of the laser's built-in set values. The control system inside the water cooler will adjust the refrigeration or heating device to adjust the circulating coolant temperature to the preset circulating coolant temperature T, and at the same time control the speed of the water pump so that the circulating coolant flow rate reaches the preset circulating coolant flow rate Q0. Then, the water cooler transports the coolant to the laser through the circulation pipe. The coolant circulates in the flow channel inside the laser, exchanges heat with each pump source, and takes away the heat generated by the pump source. The preset circulating coolant temperature T and the preset circulating coolant flow rate Q0 are theoretical values during design. Different laser models have different theoretical values, which are all preset before design. This theoretical value can meet the optimal heat dissipation of the laser under theoretical conditions.

[0079] See also Figure 4 After the water chiller begins supplying coolant to the laser at preset parameters, a high-precision temperature sensor is used to continuously measure the temperature of each pump source multiple times at extremely short intervals of milliseconds. The temperature changes at each pump source can be collected and measured. This change can be determined by multiple measurements within a short period of time. This time can be selected in milliseconds for more accurate results, resulting in multiple values for pump No. 1: Multiple values for pump 2 Multiple values for pump n Due to the different process levels of each pump, different assembly processes, errors in silicone grease thickness, assembly positions, and other reasons, the temperature of each pump source is inconsistent. For example, if a measurement is taken every 10 milliseconds and 1000 measurements are taken continuously, multiple continuous temperature measurements of each pump source can be obtained. These measurement values are sorted in chronological order, with time as the horizontal axis and temperature as the vertical axis, and the temperature rise curve of each pump source is drawn using data analysis software or drawing tools. By comparing the temperature rise curves of each pump source, the slope of the curve (reflecting the temperature rise rate), peak value (highest temperature) and other characteristics are analyzed. For example, if it is found that the temperature rise curve of pump source 3 has the largest slope, the temperature rises the fastest within the same time, and the final temperature reached is higher than that of other pump sources, then pump source 3 is determined as the reference pump source. This process, through precise measurement and data analysis, selects the pump source that is most critical to temperature control from multiple pump sources, providing a basis for the subsequent formulation of targeted cooling strategies.

[0080] Using this method, multiple measurements of the pump source temperature measurement points are performed at millisecond intervals, enabling the capture of extremely subtle changes in the pump source temperature. This high-precision measurement method provides detailed information on pump source temperature variations, enabling more timely detection of abnormal pump source temperature fluctuations compared to traditional, longer-interval measurements. The temperature rise curve comprehensively reflects the pump source's heat generation characteristics, heat dissipation effectiveness, and interaction with the cooling system. By comparing and analyzing multiple temperature rise curves, the pump source with the most difficult temperature to control can be accurately identified and used as a reference pump source. Subsequent cooling strategies developed based on this reference pump source ensure that the entire laser pump source system operates within a safe temperature range. This approach avoids blindly selecting a reference pump source and improves the targeted and effective temperature control. Once the reference pump source is identified, the cooling system can be optimized based on its temperature rise characteristics. For example, if the reference pump source's temperature rise curve indicates a rapid temperature rise within a short period of time, the water chiller's coolant temperature and flow rate parameters can be adjusted accordingly, such as lowering the coolant temperature or increasing the coolant flow rate, to better control its temperature. Through effective control of the reference pump source, precise cooling of the entire laser pump source system can be achieved, the efficiency of the cooling system can be improved, energy consumption can be reduced, and the service life of the pump source and laser can be extended.

[0081] As an optional but non-limiting implementation solution, before determining the reference temperature control configuration information associated with the laser, the following steps are further included:

[0082] The reference temperature control configuration information associated with the laser is updated according to a preset time interval.

[0083] See also Figure 4During actual laser operation, many factors can affect its performance and stability, among which the heat dissipation of the pump source is crucial. After long-term operation, potential issues may gradually emerge. For example, silicone grease, the key thermal interface between the pump source and the heat sink, degrades over time. As the grease ages, the thermal conductivity of the laser pump source decreases significantly, directly leading to poor heat dissipation efficiency. This change in heat dissipation efficiency can alter the temperature distribution of the pump sources. For example, in a laser with multiple pump sources, during normal operation, pump source 1 may be the hottest of all due to its characteristics or workload. However, once the silicone grease ages and heat dissipation deteriorates, the temperature of pump source n, which was not originally the hottest, can rapidly rise, surpassing pump source 1 to become the hottest pump source in the entire laser system. This change significantly increases the risk of failure due to overheating of pump source n and, ultimately, the entire laser system.

[0084] In order to promptly detect and respond to such potential problems and ensure the stable operation of the laser, it is particularly necessary to establish an effective self-test mechanism. One effective way is to set a fixed time interval for self-test. For example, the laser is set to automatically start a self-test process every 1000 hours of operation. During the self-test process, all operations for updating the reference temperature control configuration information associated with the laser are repeated. This series of steps covers the monitoring, data collection and analysis of the temperature of each pump source of the laser, and then re-evaluates the operating status of the entire cooling system. Through this periodic self-test, abnormal changes in the temperature distribution of the pump source can be discovered in a timely manner so that targeted measures can be taken, such as replacing aging silicone grease, optimizing cooling parameters, etc., to ensure that the laser is always in a safe and stable operating state.

[0085] Furthermore, the laser's operating environment can significantly impact its cooling requirements. In cold winter months, antifreeze is often added to prevent the coolant from freezing. Different concentrations of antifreeze exhibit distinct physical properties, particularly regarding coolant temperature regulation and flow control. Changes in antifreeze concentration directly impact the coolant's thermophysical properties, such as specific heat capacity and thermal conductivity, requiring corresponding adjustments in the water-cooled chiller's temperature and flow control. Given the significant impact of antifreeze concentration on the laser's cooling system, a comprehensive self-test can be performed upon each restart to update the laser's associated reference temperature control configuration. This is because the concentration of antifreeze can change with each addition or replacement. Failure to promptly perform a self-test and re-determine appropriate cooling parameters can result in poor cooling performance, potentially impacting the proper operation of the pump. This self-test upon each restart allows the laser to recalibrate the cooling system parameters based on the current antifreeze concentration, ensuring efficient and stable heat dissipation under varying environmental conditions and minimizing the risk of failures caused by improper cooling.

[0086] S230 : Determine target cooling parameter information used when the laser is running based on the reference temperature control configuration information and the target pump source temperature.

[0087] The target cooling parameter information is used to indicate the circulating coolant temperature and / or circulating coolant flow rate required to cool the laser so that the pump source in the laser reaches the target pump source temperature.

[0088] The target cooling parameter information is a key parameter derived from the reference temperature control configuration information and the target pump source temperature to accurately guide the cooling operation of the laser. The target cooling parameter information clearly indicates the temperature value of the circulating coolant and / or the circulating coolant flow value that needs to be set in order for the pump source in the laser to reach the target pump source temperature. For example, the target cooling parameter information that may be determined is that the circulating coolant temperature must be maintained at 22°C and the flow rate is 12L / min to ensure that the laser pump source can be stabilized within the target pump source temperature. This target cooling parameter information is the core output of the entire cooling control strategy and directly determines how the water chiller cools the laser.

[0089] Specifically, after obtaining the reference temperature control configuration information, the reference temperature control configuration information is used to find the circulating coolant temperature and circulating coolant flow combination required to maintain the pump source in the laser at the target pump source temperature during operation. For example, if the target pump source temperature is 26°C, and the reference temperature control configuration information shows that when the circulating coolant temperature is 22°C and the flow rate is 12L / min, the pump source in the laser can stabilize at around 26°C after long-term operation, then this set of temperature and flow values is determined as the target cooling parameter information. If a completely matching combination cannot be directly found in the reference information, it may be necessary to process the existing data through interpolation algorithms or other data analysis methods to infer the coolant temperature and flow parameters that are closest to the target pump source temperature, and specifically to select the cooling parameters that are most suitable for actual applications from a large amount of reference data.

[0090] By determining reference temperature control configuration information and using this information to determine target cooling parameters, the most precise cooling strategy can be provided based on the actual heat dissipation requirements of the laser pump source. Lasers of different powers and operating modes have significantly different heat generation characteristics in their pump sources. This approach allows for the optimal coolant temperature and flow combination to be tailored to each specific situation, avoiding the "one-size-fits-all" drawbacks of traditional cooling methods. For example, during high-power pulsed laser operation, heat generation in the pump source increases rapidly during the pulse phase. By referencing the target cooling parameters determined by the temperature control configuration information, the coolant temperature and flow rate can be adjusted promptly to quickly remove heat. During the inter-pulse phase, heat generation decreases, and the cooling parameters are adjusted accordingly, achieving precise cooling. Precise cooling control ensures that the pump source operates stably near the target pump source temperature. At this temperature, energy conversion efficiency within the pump source is improved. For example, electron migration in the semiconductor pump source is smoother, reducing energy loss. Furthermore, the stable temperature environment slows the aging of the electronic and optical components within the pump source.

[0091] As an optional but non-limiting implementation scheme, based on the reference temperature control configuration information and the target pump source temperature, determining the target cooling parameter information to be used during laser operation includes the following steps B1-B4:

[0092] Step B1: Based on the target pump source temperature, the reference circulating coolant temperature that should be used by the laser when the pump source in the laser reaches the target pump source temperature is determined by querying the reference temperature control configuration information.

[0093] Step B2: If the circulating coolant provided by the water cooler associated with the laser can reach the reference circulating coolant temperature, the water cooler associated with the laser is controlled to supply the circulating coolant based on the reference circulating coolant temperature.

[0094] Step B3: If the circulating coolant provided by the water chiller associated with the laser cannot reach the reference circulating coolant temperature, the reference circulating coolant flow rate that should be used by the laser when the pump source in the laser reaches the target pump source temperature is determined by querying the reference temperature control configuration information.

[0095] Step B4: If the circulating coolant provided by the water chiller associated with the laser can reach the reference circulating coolant flow rate, the water chiller associated with the laser is controlled to supply circulating coolant based on the reference circulating coolant flow rate.

[0096] The reference circulating coolant temperature can be a predetermined coolant temperature determined from the reference temperature control configuration information based on the target pump source temperature. When the circulating coolant is maintained at the reference circulating coolant temperature, the laser pump source can theoretically be maintained at the target pump source temperature. For example, based on the target pump source temperature and the reference temperature control configuration information, if a circulating coolant temperature of 23°C is determined to optimize the laser pump source operation, then 23°C is the reference circulating coolant temperature. The reference circulating coolant flow rate can be similar to the reference circulating coolant temperature, determined based on the target pump source temperature and the reference temperature control configuration information. When the circulating coolant operates at the reference circulating coolant flow rate, it helps the laser pump source reach the target pump source temperature. For example, a flow rate of 15 L / min may be determined to maintain the pump source at the ideal target pump source temperature under certain conditions.

[0097] After determining the target pump source temperature, the system consults the temperature control configuration information—a database of relationships between circulating coolant temperature, circulating coolant flow rate, and pump source temperature—to find a reference coolant temperature that will allow the pump source to reach the target pump source temperature. Specifically, using the known target pump source temperature, the system searches the reference temperature control configuration information for the most suitable circulating coolant temperature, which serves as the reference circulating coolant temperature. For example, if the target pump source temperature is 28°C, and the reference temperature control configuration information indicates that a coolant temperature of 22°C is most likely to achieve this target, then 22°C is determined as the reference circulating coolant temperature.

[0098] Specifically, after determining the reference circulating coolant temperature, the performance of the circulating coolant temperature of the water chiller associated with the laser needs to be checked. If the water chiller is capable of adjusting the circulating coolant temperature to the reference circulating coolant temperature, then the coolant supply to the water chiller can be controlled based on this temperature. For example, if the water chiller's refrigeration system can adjust the coolant temperature to 22°C, then the chiller's refrigeration device, water pump, and other components can be controlled to allow the coolant to circulate through the laser at 22°C, providing cooling for the pump source, thereby achieving temperature control of the pump source.

[0099] If the water chiller is unable to adjust the circulating coolant temperature to the reference circulating coolant temperature, it means that adjusting the circulating coolant temperature alone cannot meet the cooling needs of the laser pump source. At this time, it is necessary to consider from another perspective, that is, the circulating coolant flow rate. Query the reference temperature control configuration information again and find the corresponding reference circulating coolant flow rate based on the target pump source temperature. For example, when it is found that when the circulating coolant flow rate is 18L / min, even if the coolant temperature cannot reach the expected level, it is still possible to make the laser pump source reach the target pump source temperature. In this case, 18L / min is the reference circulating coolant flow rate determined at this time.

[0100] Specifically, after determining the reference circulating coolant flow rate, the water chiller must also be tested to see if it can deliver the reference circulating coolant flow rate. If the water chiller can provide the reference circulating coolant flow rate, the chiller can be controlled based on the reference circulating coolant flow rate, adjusting the water pump speed or valve opening, etc., so that the circulating coolant circulates through the laser at the reference circulating coolant flow rate to achieve the desired cooling effect on the pump source. For example, the water pump speed can be adjusted to allow the coolant to dissipate heat from the pump source at a flow rate of 18 L / min.

[0101] It can be understood that this application adjusts the coolant from two dimensions, temperature and flow, by comprehensively considering the target pump source temperature and reference temperature control configuration information, ensuring that the pump source can reach and maintain the target pump source temperature as accurately as possible. This multi-angle consideration and adjustment method can more effectively respond to different situations, such as different ambient temperatures and changes in laser load, improve the control accuracy of the pump source temperature, ensure the optimal performance of the pump source, and thus improve the overall performance of the laser.

[0102] When the water chiller fails to meet coolant temperature requirements, the solution can flexibly shift to flow control, demonstrating its optimization of the cooling system. This allows the cooling system to flexibly adjust its cooling strategy based on the actual capacity of the water chiller, avoiding the inability to effectively control the pump source temperature due to the limitations of a single cooling parameter. This improves the adaptability and robustness of the cooling system under different hardware conditions. Precise control of the pump source temperature can reduce failures caused by overheating or overcooling, such as damage to pump components and performance degradation.

[0103] At the same time, when the cooling system's temperature regulation capacity is insufficient, flow regulation is used to supplement it, ensuring that the system can always provide appropriate cooling conditions for the pump source, extending the service life of the pump source and laser, reducing system downtime caused by temperature issues, and improving the stability and reliability of the entire laser system in various complex environments and long-term operation. Flexible adjustment of coolant temperature and flow rate based on actual conditions avoids the blind use of high-power cooling or excessive coolant flow, achieving on-demand cooling. Under the premise of meeting the pump source temperature control, when the water chiller can achieve the cooling target with a lower coolant temperature or an appropriate flow rate, it can reduce the power consumption of the refrigeration system or the energy consumption of the water pump, achieving energy conservation and thus improving energy utilization efficiency.

[0104] As an optional but non-limiting implementation scheme, based on the reference temperature control configuration information and the target pump source temperature, determining the target cooling parameter information to be used during laser operation includes the following steps C1-C4:

[0105] Step C1: Based on the target pump source temperature, the reference circulating coolant flow rate that should be used by the laser when the pump source in the laser reaches the target pump source temperature is determined by querying the reference temperature control configuration information.

[0106] Step C2: If the circulating coolant provided by the water chiller associated with the laser can reach the reference circulating coolant flow rate, the water chiller associated with the laser is controlled to supply circulating coolant based on the reference circulating coolant flow rate.

[0107] Step C3: If the circulating coolant provided by the water chiller associated with the laser cannot reach the reference circulating coolant flow rate, the reference circulating coolant temperature that should be used by the laser when the pump source in the laser reaches the target pump source temperature is determined by querying the reference temperature control configuration information.

[0108] Step C4: If the circulating coolant provided by the water cooler associated with the laser can reach the reference circulating coolant temperature, the water cooler associated with the laser is controlled to supply the circulating coolant based on the reference circulating coolant temperature.

[0109] S240 : Control a water chiller associated with the laser to supply circulating coolant based on the target cooling parameter information.

[0110] The present application solution predicts the temperature rise trend of the pump source in advance by gradually changing the flow rate and water temperature, and then provides the most suitable water temperature and flow rate suitable for the current water cooler. If the water cooler used is configured by the laser manufacturer, the predicted value can be transmitted to the water cooler for intelligent proportioning without manual control. If it is other water coolers that cannot be controlled intelligently, the water temperature and flow rate required for using the water cooler can also be displayed on the laser display. This method not only greatly reduces the design redundancy of the laser and reduces a lot of costs, but also greatly protects the laser and reduces laser damage or power drop caused by pump burning. It can also reduce the risk of pump burning caused by different antifreeze concentration ratios when using antifreeze in winter. It can also be used as a method for laser manufacturers to test machines before leaving the factory, and can be used to detect whether the process levels of different pumps are consistent.

[0111] The technical solution of the embodiments of the present invention optimizes the energy conversion process within the pump source by controlling the pump source temperature at a target pump source temperature. Furthermore, a stable temperature environment can slow the aging of the electronic and optical components within the pump source. A stable pump source temperature is a key factor in ensuring stable laser output performance. Fluctuations in the pump source temperature can affect the power and stability of the pump light output, leading to unstable laser power and reduced beam quality. By precisely controlling the circulating coolant supply to the water chiller to maintain the pump source at the target pump source temperature, parameters such as laser power, wavelength, and beam quality can be maintained stable. Compared to traditional cooling methods that use fixed coolant temperature and flow rates, this solution dynamically adjusts cooling parameters based on actual needs, avoiding unnecessary cooling power consumption. In traditional methods, the coolant circulates at a fixed temperature and flow rate regardless of the actual heat generation of the pump source. This can result in significant cooling energy consumption even when the pump source generates less heat. This solution, by precisely controlling the coolant temperature and flow rate when the pump source generates less heat, reduces the cooling power of the water chiller and the energy consumption of the water pump. Ensuring the pump source is always within a safe operating temperature range significantly reduces the risk of laser failure due to pump source overheating. Overheating can cause serious problems such as burning internal pump components and cracking solder joints. This solution effectively avoids these issues through precise temperature control and cooling parameter adjustment. This improves the reliability of the entire laser system and reduces production interruptions and experimental failures caused by equipment failure.

[0112] Figure 5This is a structural schematic diagram of a laser control device provided in an embodiment of the present invention. The embodiment of the present invention is applicable to situations where the circulating coolant required by a water chiller associated with a laser is precisely controlled. The laser control device can be implemented in the form of software and / or hardware and is generally integrated into any electronic device with network communication capabilities, such as a mobile terminal, a PC, or a server.

[0113] like Figure 5 As shown, the laser control device of the embodiment of the present invention may include a first temperature sensor 510, a second temperature sensor 520, a flow meter 530, and a control module 540. The first temperature sensor 510 is connected to a pump source in the laser to detect the temperature of the pump source in real time; the second temperature sensor 520 is disposed in a coolant circulation pipeline of a water chiller associated with the laser to monitor the temperature of the circulating coolant in real time; the flow meter is also disposed in the coolant circulation pipeline to monitor the flow rate of the circulating coolant in real time; the control module 540 is connected to the first temperature sensor 510, the second temperature sensor 520, and the flow meter 530, respectively, and is configured to perform the following operations:

[0114] Determining a target pump source temperature corresponding to a pump source in the laser, wherein the target pump source temperature is a pump source temperature at which the pump source in the laser can operate according to predetermined operating conditions during operation of the laser;

[0115] determining target cooling parameter information used when the laser is running based on the target pump source temperature, wherein the target cooling parameter information is used to indicate the circulating coolant temperature and / or circulating coolant flow rate required to cool the laser so that the pump source in the laser reaches the target pump source temperature;

[0116] Based on the target cooling parameter information, a water chiller associated with the laser is controlled to supply circulating coolant.

[0117] Based on the above embodiment, optionally, determining target cooling parameter information used when the laser is running based on the target pump source temperature includes:

[0118] Determining reference temperature control configuration information associated with the laser, the reference temperature control configuration information being used to indicate a maximum pump source temperature that can be reached in the laser pump source over time at different circulating coolant temperatures as the circulating coolant used by the laser undergoes an equal-step temperature adjustment; and a maximum pump source temperature that can be reached in the laser pump source over time at different circulating coolant flow rates as the circulating coolant used by the laser undergoes an equal-step flow adjustment;

[0119] Target cooling parameter information used when the laser is running is determined based on the reference temperature control configuration information and the target pump source temperature.

[0120] Based on the above embodiment, optionally, determining target cooling parameter information used when the laser is running based on the reference temperature control configuration information and the target pump source temperature includes:

[0121] Based on the target pump source temperature, determining, by querying the reference temperature control configuration information, a reference circulating coolant temperature that should be used by the laser when the pump source in the laser reaches the target pump source temperature;

[0122] If the circulating coolant provided by the water chiller associated with the laser can reach the reference circulating coolant temperature, the water chiller associated with the laser is controlled to supply the circulating coolant based on the reference circulating coolant temperature;

[0123] If the circulating coolant provided by the water chiller associated with the laser cannot reach the reference circulating coolant temperature, then the reference circulating coolant flow rate that should be used by the laser to enable the pump source in the laser to reach the target pump source temperature is determined by querying the reference temperature control configuration information;

[0124] If the circulating coolant provided by the water chiller associated with the laser can reach the reference circulating coolant flow rate, the water chiller associated with the laser is controlled to supply the circulating coolant based on the reference circulating coolant flow rate.

[0125] Based on the above embodiment, optionally, determining target cooling parameter information used when the laser is running based on the reference temperature control configuration information and the target pump source temperature includes:

[0126] Based on the target pump source temperature, determining, by querying the reference temperature control configuration information, a reference circulating coolant flow rate that should be used by the laser when the pump source in the laser reaches the target pump source temperature;

[0127] If the circulating coolant provided by the water chiller associated with the laser can reach the reference circulating coolant flow rate, the water chiller associated with the laser is controlled to supply circulating coolant based on the reference circulating coolant flow rate;

[0128] If the circulating coolant provided by the water chiller associated with the laser cannot reach the reference circulating coolant flow rate, then the reference circulating coolant temperature that should be used by the laser when the pump source in the laser reaches the target pump source temperature is determined by querying the reference temperature control configuration information;

[0129] If the circulating coolant provided by the water chiller associated with the laser can reach the reference circulating coolant temperature, the water chiller associated with the laser is controlled to supply the circulating coolant based on the reference circulating coolant temperature.

[0130] Based on the above embodiment, optionally, the reference temperature control configuration information is obtained in the following manner:

[0131] Determining a reference pump source from a plurality of pump sources included in the laser, wherein a maximum pump source temperature that can be reached by the reference pump source over time of the laser operation is greater than a maximum pump source temperature that can be reached by other pump sources other than the reference pump source among the plurality of pump sources included in the laser over time of the laser operation;

[0132] Control the circulating coolant of the water chiller associated with the laser to perform step-by-step temperature adjustment to obtain the temperature of the reference pump source in the laser at different circulating coolant temperatures;

[0133] The circulating coolant of the water chiller associated with the laser is controlled to perform step-by-step flow adjustment to obtain the temperature of the reference pump source in the laser under different circulating coolant flow rates.

[0134] Based on the above embodiment, optionally, determining a reference pump source from a plurality of pump sources included in the laser includes:

[0135] For each pump source included in the laser, start the water chiller associated with the laser to supply circulating coolant to the laser according to the preset circulating coolant temperature and preset circulating coolant flow rate;

[0136] The temperature measurement point of each pump source is measured multiple times at millisecond intervals to obtain multiple continuous temperature measurement values of each pump source. A temperature rise curve of each pump source in the laser is generated based on the multiple continuous temperature measurement values of each pump source. A reference pump source is determined from the multiple pump sources included in the laser based on the temperature rise curves of the individual pump sources.

[0137] Based on the above embodiment, optionally, before determining the reference temperature control configuration information associated with the laser, the method further includes:

[0138] The reference temperature control configuration information associated with the laser is updated according to a preset time interval.

[0139] The technical solution of the embodiment of the present invention takes into account that a variety of electronic components and optical components are integrated inside the pump source of the laser. Too high or too low a temperature will accelerate the aging process of these components. When the pump source of the laser is at the target pump source temperature, the energy conversion process inside the pump source will be optimized. The target pump source temperature can ensure that the pump source operates stably according to the predetermined conditions of use. The stable pump source temperature mainly depends on a good cooling system to maintain, which is not only of great significance to the pump source itself, but also plays a good protective role for the laser. The target cooling parameter information is determined based on the target pump source temperature. The temperature and flow of the circulating coolant can be accurately adjusted according to the actual heat dissipation requirements of the pump source. Compared with the use of fixed coolant temperature and flow, which is very easy to cause energy waste, the present application solution can dynamically adjust the cooling parameters according to actual needs, effectively avoiding unnecessary cooling power consumption. By accurately controlling the circulating coolant supply of the water chiller, it can ensure that the pump source is always in a safe operating temperature range, making the output performance of the laser more stable and reliable, and greatly reducing the risk of laser failure caused by overheating of the pump source.

[0140] The laser control device provided in the embodiment of the present invention can execute the laser control method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the laser control method.

[0141] It is worth noting that the various units and modules included in the above-mentioned device are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the embodiments of the present invention.

[0142] Figure 6 This is a schematic diagram of the structure of an electronic device for implementing a laser control method provided by an embodiment of the present invention. Figure 6 , which shows an electronic device (eg Figure 6 The terminal device in the embodiment of the present invention may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (such as in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 6 The electronic device shown is only an example and should not limit the functions and scope of use of the embodiments of the present invention.

[0143] like Figure 6As shown, the electronic device 600 may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 602 or a program loaded from a storage device 608 into a random access memory (RAM) 603. Various programs and data required for the operation of the electronic device 600 are also stored in the RAM 603. The processing device 601, the ROM 602, and the RAM 603 are connected to each other via a bus 604. An edit / output (I / O) interface 605 is also connected to the bus 604.

[0144] Typically, the following devices may be connected to the I / O interface 605: an input device 606 including, for example, a touch screen, a touchpad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 607 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 608 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 609. The communication device 609 may allow the electronic device 600 to communicate with other devices wirelessly or by wire to exchange data. Although Figure 6 The electronic device 600 is shown with various devices, but it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed instead.

[0145] In particular, according to an embodiment of the present invention, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present invention includes a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for executing the laser control method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via the communication device 609, or installed from the storage device 608, or installed from the ROM 602. When the computer program is executed by the processing device 601, the above-mentioned functions defined in the laser control method of the embodiment of the present invention are performed.

[0146] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0147] The electronic device provided in the embodiment of the present invention and the laser control method provided in the above embodiment belong to the same inventive concept. For technical details not fully described in this embodiment, please refer to the above embodiment, and this embodiment has the same beneficial effects as the above embodiment.

[0148] An embodiment of the present invention provides a laser, which includes the laser control device described in the above solution.

[0149] The flow charts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the system, method and computer program product according to various embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, program segment, or a part of code, and the module, program segment, or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0150] The units involved in the embodiments of the present invention may be implemented in software or hardware. In some cases, the name of a unit does not limit the unit itself. For example, the first acquisition unit may also be described as a "unit for acquiring at least two Internet Protocol addresses."

[0151] The above description is merely a preferred embodiment of the present invention and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of disclosure involved in the present invention is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also includes other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the above-mentioned disclosed concepts. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in the present invention.

[0152] In addition, although adopting specific order to describe each operation, this should not be interpreted as requiring these operations to be executed in the specific order shown or in sequential order.Under certain environment, multitasking and parallel processing may be advantageous.Similarly, although comprising some specific implementation details in the above discussion, these should not be interpreted as limiting the scope of the present invention.Some features described in the context of independent embodiment can also be implemented in single embodiment in combination.On the contrary, the various features described in the context of independent embodiment also can be implemented in multiple embodiments individually or in the mode of any suitable subcombination.

[0153] Although the subject matter has been described in language specific to structural features and / or methodological logical acts, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are merely example forms of implementing the claims.

Claims

1. A laser control method, characterized in that: The method comprises: Determining a target pump source temperature corresponding to a pump source in the laser, wherein the target pump source temperature is a pump source temperature at which the pump source in the laser can operate according to predetermined operating conditions during operation of the laser; determining target cooling parameter information used when the laser is running based on the target pump source temperature, wherein the target cooling parameter information is used to indicate the circulating coolant temperature and / or circulating coolant flow rate required to cool the laser so that the pump source in the laser reaches the target pump source temperature; Based on the target cooling parameter information, a water chiller associated with the laser is controlled to supply circulating coolant.

2. The method according to claim 1, characterized in that Determining target cooling parameter information used when the laser is running based on the target pump source temperature includes: Determining reference temperature control configuration information associated with the laser, the reference temperature control configuration information being used to indicate a maximum pump source temperature that can be reached in the laser pump source over time at different circulating coolant temperatures as the circulating coolant used by the laser undergoes an equal-step temperature adjustment; and a maximum pump source temperature that can be reached in the laser pump source over time at different circulating coolant flow rates as the circulating coolant used by the laser undergoes an equal-step flow adjustment; Target cooling parameter information used when the laser is running is determined based on the reference temperature control configuration information and the target pump source temperature.

3. The method according to claim 2, characterized in that Determining target cooling parameter information used when the laser is running based on the reference temperature control configuration information and the target pump source temperature, including: Based on the target pump source temperature, determining, by querying the reference temperature control configuration information, a reference circulating coolant temperature that should be used by the laser when the pump source in the laser reaches the target pump source temperature; If the circulating coolant provided by the water chiller associated with the laser can reach the reference circulating coolant temperature, the water chiller associated with the laser is controlled to supply the circulating coolant based on the reference circulating coolant temperature; If the circulating coolant provided by the water chiller associated with the laser cannot reach the reference circulating coolant temperature, then the reference circulating coolant flow rate that should be used by the laser to enable the pump source in the laser to reach the target pump source temperature is determined by querying the reference temperature control configuration information; If the circulating coolant provided by the water chiller associated with the laser can reach the reference circulating coolant flow rate, the water chiller associated with the laser is controlled to supply the circulating coolant based on the reference circulating coolant flow rate.

4. The method according to claim 2, characterized in that Determining target cooling parameter information used when the laser is running based on the reference temperature control configuration information and the target pump source temperature, including: Based on the target pump source temperature, determining, by querying the reference temperature control configuration information, a reference circulating coolant flow rate that should be used by the laser when the pump source in the laser reaches the target pump source temperature; If the circulating coolant provided by the water chiller associated with the laser can reach the reference circulating coolant flow rate, the water chiller associated with the laser is controlled to supply circulating coolant based on the reference circulating coolant flow rate; If the circulating coolant provided by the water chiller associated with the laser cannot reach the reference circulating coolant flow rate, then the reference circulating coolant temperature that should be used by the laser when the pump source in the laser reaches the target pump source temperature is determined by querying the reference temperature control configuration information; If the circulating coolant provided by the water chiller associated with the laser can reach the reference circulating coolant temperature, the water chiller associated with the laser is controlled to supply the circulating coolant based on the reference circulating coolant temperature.

5. The method according to claim 2, characterized in that The reference temperature control configuration information is obtained in the following manner: Determining a reference pump source from a plurality of pump sources included in the laser, wherein a maximum pump source temperature that can be reached by the reference pump source over time of the laser operation is greater than a maximum pump source temperature that can be reached by other pump sources other than the reference pump source among the plurality of pump sources included in the laser over time of the laser operation; Control the circulating coolant of the water chiller associated with the laser to perform step-by-step temperature adjustment to obtain the temperature of the reference pump source in the laser at different circulating coolant temperatures; The circulating coolant of the water chiller associated with the laser is controlled to perform step-by-step flow adjustment to obtain the temperature of the reference pump source in the laser under different circulating coolant flow rates.

6. The method according to claim 5, characterized in that Determine the reference pump source from among the multiple pump sources included in the laser, including: For each pump source included in the laser, start the water chiller associated with the laser to supply circulating coolant to the laser according to the preset circulating coolant temperature and preset circulating coolant flow rate; The temperature measurement point of each pump source is measured multiple times at millisecond intervals to obtain multiple continuous temperature measurement values of each pump source. A temperature rise curve of each pump source in the laser is generated based on the multiple continuous temperature measurement values of each pump source. A reference pump source is determined from the multiple pump sources included in the laser based on the temperature rise curves of the individual pump sources.

7. The method according to claim 2, characterized in that Before determining the reference temperature control configuration information associated with the laser, it also includes: The reference temperature control configuration information associated with the laser is updated according to a preset time interval.

8. A laser control device, characterized in that: The device includes a first temperature sensor, a second temperature sensor, a flow meter and a control module, wherein: The first temperature sensor is connected to the pump source in the laser to detect the temperature of the pump source in real time; The second temperature sensor is provided in a coolant circulation pipeline of a water chiller associated with the laser, and is used to monitor the temperature of the circulating coolant in real time; The flow meter is arranged in the coolant circulation pipeline and is used to monitor the flow rate of the circulating coolant in real time; The control module is connected to the first temperature sensor, the second temperature sensor, and the flow meter, respectively, and is configured to perform the following operations: Determining a target pump source temperature corresponding to a pump source in the laser, wherein the target pump source temperature is a pump source temperature at which the pump source in the laser can operate according to predetermined operating conditions during operation of the laser; determining target cooling parameter information used when the laser is running based on the target pump source temperature, wherein the target cooling parameter information is used to indicate the circulating coolant temperature and / or circulating coolant flow rate required to cool the laser so that the pump source in the laser reaches the target pump source temperature; It is used to control the water chiller associated with the laser to supply circulating coolant based on the target cooling parameter information.

9. An electronic device, characterized in that: The electronic device comprises: one or more processors; a storage device for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement the laser control method according to any one of claims 1 to 7.

10. A laser, characterized in that: The laser includes the laser control device according to claim 8.

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