A signal converter and a control method thereof

Abstract

The application discloses a signal converter and a control method thereof. The signal converter comprises a control module, a signal input module, a signal output module and a communication module electrically connected with the control module; the communication module is further in communication connection with a water cooling system; the signal output module is electrically connected with a high-voltage controller; the signal input module receives an input signal; the control module receives the input signal, determines a start-stop control mode of the water cooling system according to the input signal, generates a corresponding early warning flag bit when an operation signal input by the water cooling system through the communication module and the input signal are abnormal, generates a control signal corresponding to the early warning flag bit to the signal output module according to the early warning flag bit, and the signal output module receives the control signal of the control module and outputs a on-off signal to the high-voltage controller according to the control signal. By using the above structure, signal matching and normal communication between a non-original water cooling system and a high-voltage controller are realized.

Description

Technical Field

[0001] This invention relates to the technical field of semiconductor equipment, and more particularly to a signal converter and its control method. Background Technology

[0002] In semiconductor manufacturing equipment, the water cooling system is used to cool the high-voltage controller of the machine. The high-voltage controller realizes the linkage control between the water cooling system and the machine by collecting alarm signals from the water cooling system and outputting start-stop control signals.

[0003] Currently, the high-voltage controller and water cooling system of semiconductor equipment usually interact through on / off signals. That is, the high-voltage controller controls the start and stop of the water cooling system by turning on or off between two pins, and the water cooling system reports alarm information such as water level, water pressure, water temperature, flow rate and resistivity to the high-voltage controller by changing the on / off state between the alarm signal pin and the ground pin.

[0004] However, when the original water cooling system is missing and a non-original water cooling system needs to be used as a replacement, the signal interaction method of the non-original water cooling system is different from that of the original water cooling system. The non-original water cooling system usually uses a serial communication protocol to report alarm information and receive control commands, while the machine's high-voltage controller still uses an on / off signal interaction method. This makes it impossible for the non-original water cooling system to be directly matched with the high-voltage controller. If it is forcibly connected, the high-voltage controller will neither be able to recognize the alarm information reported by the non-original water cooling system nor issue start / stop commands to it, so the non-original water cooling system cannot replace the original water cooling system for normal operation. Summary of the Invention

[0005] This invention provides a signal converter and its control method to enable signal matching and normal communication between a non-original water-cooling system using serial communication and a machine high-voltage controller using on / off signals. At the same time, the control module integrates the operating signals of the water-cooling system and external input signals to make anomaly judgments, which makes up for the technical problem that the alarm information of the non-original water-cooling system is incomplete and thus cannot accurately judge the anomaly. It also reduces costs and has strong applicability.

[0006] In a first aspect, the present invention provides a signal converter for connecting a machine tool high-voltage controller and a water-cooling system, including a control module, and a signal input module, a signal output module, and a communication module electrically connected to the control module; the communication module is also communicatively connected to the water-cooling system; the signal output module is electrically connected to the high-voltage controller; The signal input module is used to receive input signals; the input signals include at least the input signal output by the high-voltage controller and the input signal output by an external signal source; The control module is used to receive input signals and determine the start-stop control mode of the water cooling system based on the input signals. When the water cooling system starts, it generates a corresponding warning flag bit when the operating signal and / or input signal are abnormal, based on the input signal and the operating signal received by the water cooling system through the communication module. It then generates a control signal corresponding to the warning flag bit and sends it to the signal output module. The signal output module is used to receive control signals from the control module and output on / off signals to the high-voltage controller according to the control signals.

[0007] Optionally, the input signals output by the high-voltage controller may include start / stop signals; The control module is also used to receive start / stop signals. When the current start / stop signal is different from the previous start / stop signal, it sends a start / stop command to the water cooling system through the communication module.

[0008] Optionally, the external signal sources include a flow meter and a pressure gauge, which are located on the pipeline connecting the high-pressure controller and the water cooling system. The input signals of the external signal output include the water flow signal detected by the flow meter in the pipeline and the water pressure signal detected by the pressure gauge in the pipeline. The operating signals input by the water cooling system through the communication module include temperature signal, water level signal and resistivity signal. The control module is also used to determine whether there are any abnormalities in the temperature, water level, and resistivity signals when the water cooling system is started, and to generate corresponding warning flags when there are abnormalities in the temperature, water level, and / or resistivity signals; and to determine whether there are any abnormalities in the water flow and water pressure signals, and to generate corresponding warning flags when there are abnormalities in the water flow and / or water pressure signals.

[0009] Optionally, the signal converter may also include an indicator module; the indicator module is electrically connected to the control module. The control module is also used to control the indicator light module to light up in a preset manner while generating the corresponding warning flag.

[0010] Optionally, the signal converter may also include a reset module; the reset module is electrically connected to the control module. The control module is also used to clear the alarm status corresponding to the abnormal warning flag bit when the reset module is detected to be triggered.

[0011] Optionally, the signal converter may also include a first optocoupler isolator and a second optocoupler isolator; The first optocoupler is located between the external signal source and the signal input module, and the second optocoupler is located between the high-voltage controller and the signal output module.

[0012] Secondly, the present invention provides a control method for a signal converter, comprising: The input signal received by the signal input module includes at least the input signal output by the high-voltage controller and the input signal output by the external signal source. The start / stop control method of the water cooling system is determined based on the input signal; When the water cooling system starts up, based on the input signal and the operating signal received from the water cooling system through the communication module, a corresponding warning flag is generated when the operating signal and / or input signal are abnormal. Based on the warning flag, a control signal corresponding to the warning flag is generated and sent to the signal output module, so that the signal output module outputs an on / off signal to the high voltage controller according to the control signal.

[0013] Optionally, the input signals output by the high-voltage controller may include start / stop signals; The start-up and shutdown control methods of the water cooling system are determined based on the input signals, including: Receive start / stop signals; When the current start / stop signal is different from the previous start / stop signal, a start / stop command is sent to the water cooling system through the communication module.

[0014] Optionally, the input signals of the external signal output include the water flow signal in the pipeline detected by the flow meter and the water pressure signal in the pipeline detected by the water pressure gauge. The operating signals input by the water cooling system through the communication module include temperature signal, water level signal and resistivity signal. Based on the input signals and the operating signals received from the water-cooling system via the communication module, corresponding warning flags are generated when the operating signals and / or input signals are abnormal, including: Based on the temperature signal, water level signal, and resistivity signal, determine whether there are any abnormalities in the temperature signal, water level signal, and resistivity signal. When there are abnormalities in the temperature signal, water level signal, and / or resistivity signal, a corresponding warning flag will be generated. Determine whether there are any abnormalities in the water flow and water pressure signals based on the water flow and water pressure signals. When there are abnormalities in the water flow signal and / or water pressure signal, a corresponding warning flag will be generated.

[0015] Optionally, the signal converter may also include an indicator light module; In addition to generating a corresponding warning flag when the operating signal and / or input signal is abnormal, it also includes: The control indicator module illuminates according to a preset method.

[0016] In this embodiment of the invention, the signal input module receives external input signals in real time. These input signals include at least the input signal output by the high-voltage controller and the input signal output by the external signal source. The control module receives the input signals transmitted by the signal input module, identifies the input signal output by the high-voltage controller, and determines whether the machine expects the water cooling system to start or stop based on the input signal. It then sends corresponding start / stop commands to the water cooling system via the communication module, ensuring synchronization between the water cooling system's start / stop and the machine's commands. When the control module determines that the water cooling system needs to be started, it sends a corresponding start command to the water cooling system via the communication module. After the water cooling system starts running, the control module continuously reads the operating signals returned by the water cooling system via the communication module and simultaneously monitors various input signals received by the signal input module to detect any anomalies in the external signal source. Logical judgment is performed on the operating signals and input signals. If an alarm is detected within the water cooling system or an anomaly is detected by the external signal source, a corresponding warning flag is generated, and a corresponding control signal is generated based on this warning flag and output to the signal output module. The signal output module converts the control signal into an on / off signal that the high-voltage controller can recognize. By changing the on / off state between the signal pin and the ground terminal, it simulates the alarm signal reporting method of the original water-cooling system, accurately transmitting alarm information to the high-voltage controller. Using this system, signal matching and normal communication are achieved between the non-original water-cooling system (which uses serial communication) and the machine's high-voltage controller (which uses on / off signals). Simultaneously, the control module integrates the operating signals of the water-cooling system and external input signals to determine anomalies, overcoming the technical problem of incomplete alarm information in non-original water-cooling systems leading to inaccurate anomaly detection. This reduces costs and offers broad applicability.

[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a signal converter provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of another signal converter provided in an embodiment of the present invention; Figure 3A flowchart illustrating a control method for a signal converter provided in an embodiment of the present invention; Figure 4 A flowchart of another control method for a signal converter provided in an embodiment of the present invention. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0022] In one embodiment, Figure 1 This is a schematic diagram of a signal converter provided in an embodiment of the present invention. This embodiment can be applied to achieve signal matching and normal communication between non-original water-cooling systems and high-voltage controllers, while also compensating for situations where incomplete alarm information from non-original water-cooling systems leads to inaccurate anomaly detection. Figure 1As shown, the signal converter includes a control module 1, and a signal input module 2, a signal output module 3, and a communication module 4 electrically connected to the control module 1; the communication module 4 is also communicatively connected to the water cooling system 5; the signal output module 3 is electrically connected to the high-voltage controller 6; the signal input module 2 is used to receive input signals; the input signals include at least the input signal output by the high-voltage controller 6 and the input signal output by an external signal source; the control module 1 is used to receive the input signals and determine the start-stop control mode of the water cooling system 5 according to the input signals; when the water cooling system 5 starts, it generates a corresponding warning flag bit according to the input signals and the operating signals received by the water cooling system 5 through the communication module 4; when the operating signals and / or input signals are abnormal, it generates a control signal corresponding to the warning flag bit to the signal output module 3; the signal output module 3 is used to receive the control signals from the control module 1 and output on / off signals to the high-voltage controller 6 according to the control signals.

[0023] The control module 1 is the core processing unit of the signal converter, typically a microcontroller (MCU) with a built-in embedded program. It is responsible for receiving all input signals, performing logical judgments, generating control commands and alarm flags, and serves as the decision-making center for signal conversion. The signal input module 2 is the signal acquisition interface of the signal converter, connecting the high-voltage controller 6 and an external signal source. It converts the on / off signals or level signals from external devices into electrical signals recognizable by the control module 1, serving as the basis for the control module 1 to determine the external status. The signal output module 3 is the signal output interface of the signal converter, connected to the alarm signal input terminal of the high-voltage controller 6. It converts the control signals generated by the control module 1 into on / off signals (pin-to-ground connection or disconnection) recognizable by the high-voltage controller 6, reporting alarm information to the machine. The communication module 4 is the serial communication interface of the signal converter (such as an RS232 interface), connected to the communication port of the water-cooling system 5. It establishes a bidirectional data channel between the control module 1 and the water-cooling system 5, used to issue start / stop commands and receive operating status information from the water-cooling system 5. In practice, control module 1, signal input module 2, and signal output module 3 can all be located on the same circuit board to reduce cost and size. The water-cooling system 5 is a non-original replacement water-cooling device used to cool the high-pressure controller 6 of the machine. It reports alarm information and receives control commands via serial communication. The high-pressure controller 6 is the core device controlling the high-pressure output of the machine. It needs to be cooled by the water-cooling system 5, outputs start / stop control signals to control the start and stop of the water-cooling system 5, and simultaneously receives alarm signals to trigger the machine's protection actions. The input signals are all external signals received by the signal input module 2, including the start / stop control signals output by the high-pressure controller 6 and the detection signals output by external signal sources (such as flow meters, pressure gauges, and other sensors). These serve as the primary basis for control module 1 to determine the machine's start / stop and the status of external sensors. The operating signals are the alarm status information (including but not limited to alarm flags such as water level, water temperature, and resistivity) returned by the water-cooling system 5 through the communication module 4. These serve as the direct data source for control module 1 to determine whether there are any abnormalities within the water-cooling system. The warning flag is a flag variable set by the internal program of control module 1. It is used to record whether various alarms have occurred and serves as a temporary storage marker after control module 1 determines an anomaly, driving the generation and output of subsequent control signals. The on / off signal is an electrical signal form that the high-voltage controller 6 can recognize. It is manifested as the connection or disconnection between the signal pin and the ground terminal. It is used to simulate the alarm signal reporting method of the original water-cooling system 5, enabling the high-voltage controller 6 to correctly identify the alarm category and trigger the machine protection mechanism.

[0024] Specifically, in actual operation, signal input module 2 first receives external input signals in real time. These input signals include at least the input signals output by high-pressure controller 6 (such as start / stop control signals) and input signals output by external signal sources (such as flow meters, pressure gauges, etc.) (such as detection signals), and transmits these input signals to control module 1. After receiving the input signals transmitted by signal input module 2, control module 1 first identifies the input signal output by high-pressure controller 6, and based on this input signal and the previously received input signal, determines whether the machine currently expects the water cooling system to start or stop. It then sends the corresponding start / stop command to water cooling system 5 through communication module 4, ensuring that the start / stop of water cooling system 5 is synchronized with the machine's commands. When control module 1 determines that water cooling system 5 needs to be started, it sends the corresponding start command to water cooling system 5 through communication module 4 to initiate the start-up of water cooling system 5. After the water-cooling system 5 starts operating, the control module 1 continuously reads the operating signals returned by the water-cooling system 5 through the communication module 4. These operating signals contain alarm status information within the water-cooling system 5. Simultaneously, the control module 1 monitors various input signals received by the signal input module 2 to detect any anomalies in external signal sources in real time. The control module 1 performs logical judgment based on the aforementioned operating signals and input signals. Once an alarm is detected within the water-cooling system 5 or an anomaly is detected by an external signal source, a corresponding warning flag is generated. Based on this warning flag, a corresponding control signal is generated and output to the signal output module 3. The signal output module 3 converts this control signal into an on / off signal that the high-voltage controller 6 can recognize. By changing the on / off state between the signal pin and the ground terminal, it simulates the alarm signal reporting method of the original water-cooling system, accurately transmitting the alarm information to the high-voltage controller 6. Therefore, the high-voltage controller 6 can correctly identify the alarm category and trigger the machine protection mechanism, just as it would when receiving an alarm signal from the original water-cooling system 5, thus achieving a complete replacement of the original water-cooling system by the non-original system.

[0025] In this embodiment of the invention, the signal input module receives external input signals in real time. These input signals include at least the input signal output by the high-voltage controller and the input signal output by the external signal source. The control module receives the input signals transmitted by the signal input module, identifies the input signal output by the high-voltage controller, and determines whether the machine expects the water cooling system to start or stop based on the input signal. It then sends corresponding start / stop commands to the water cooling system via the communication module, ensuring synchronization between the water cooling system's start / stop and the machine's commands. When the control module determines that the water cooling system needs to be started, it sends a corresponding start command to the water cooling system via the communication module. After the water cooling system starts running, the control module continuously reads the operating signals returned by the water cooling system via the communication module and simultaneously monitors various input signals received by the signal input module to detect any anomalies in the external signal source. Logical judgment is performed on the operating signals and input signals. If an alarm is detected within the water cooling system or an anomaly is detected by the external signal source, a corresponding warning flag is generated, and a corresponding control signal is generated based on this warning flag and output to the signal output module. The signal output module converts the control signal into an on / off signal that the high-voltage controller can recognize. By changing the on / off state between the signal pin and the ground terminal, it simulates the alarm signal reporting method of the original water-cooling system, accurately transmitting alarm information to the high-voltage controller. Using this system, signal matching and normal communication are achieved between the non-original water-cooling system (which uses serial communication) and the machine's high-voltage controller (which uses on / off signals). Simultaneously, the control module integrates the operating signals of the water-cooling system and external input signals to determine anomalies, overcoming the technical problem of incomplete alarm information in non-original water-cooling systems leading to inaccurate anomaly detection. This reduces costs and offers broad applicability.

[0026] In another specific embodiment, optionally, reference continues. Figure 1 The input signals output by the high-voltage controller 6 include start and stop signals; the control module 1 is also used to receive start and stop signals, and when the current start and stop signal is different from the previous start and stop signal, it sends a start and stop command to the water cooling system 5 through the communication module 4.

[0027] Among them, the start / stop signal is the on / off signal output by the high-voltage controller 6, which is represented by the conduction or disconnection between two pins. It serves as the basis for the machine to command the water cooling system 5 to start or stop, and is the trigger signal source for the signal converter to work.

[0028] Specifically, the high-voltage controller 6 of the machine outputs start / stop signals as on / off signals, expressing control intent through the conduction or disconnection state of two pins. For example, conduction indicates that the water cooling system 5 needs to be started, and disconnection indicates that the water cooling system 5 needs to be stopped. This start / stop signal remains in the same state when there is no change in instruction. However, non-original water cooling systems do not receive start / stop commands through on / off signals, but rather control them by sending start or stop commands via RS232 serial port according to the MODBUS communication protocol. Therefore, the control module 1 of the signal converter needs to convert the continuous on / off state of the machine into a serial command that the water cooling system 5 can receive, and send the command only once when the machine's instruction changes to avoid communication conflicts caused by repeated transmissions.

[0029] In actual operation, control module 1 continuously monitors the status of start / stop signals using a cyclic scanning method. In each cycle, it reads the on / off state of the current status and compares it sequentially with the state saved in the previous cycle. The core purpose of this comparison is to determine whether the instructions from high-voltage controller 6 have changed. If the current state differs from the previous state, it indicates that the machine has just issued a new control intention. Specifically, if the current start / stop signal is on while the previous one was off, it means the machine has issued an instruction to start the water-cooling system 5; if the current start / stop signal is off while the previous one was on, it means the machine has issued an instruction to stop the water-cooling system 5. When such a change is detected, control module 1 immediately sends the corresponding MODBUS protocol start or stop command to the water-cooling system 5 through communication module 4, ensuring that the start / stop actions of the water-cooling system 5 are synchronized with the machine's instructions in real time. If the current state is the same as the previous state, it means the machine's instructions have not changed, and control module 1 does not send any instructions to the water-cooling system 5 to avoid redundant communication causing invalid responses or communication interference from the water-cooling system 5. After completing the above judgment and transmission operations, control module 1 saves the state read this time as a new "previous start / stop signal" as a comparison benchmark for the next cycle. Through this edge-detection-based state change judgment mechanism, control module 1 successfully converts the on / off signal continuously maintained by high-voltage controller 6 into a serial command that water-cooling system 5 can receive, and sends it precisely only when the command changes. This ensures that water-cooling system 5 responds to machine start / stop commands in a timely and accurate manner, while avoiding the transmission of invalid and redundant data on the communication link, making the start / stop control process precise and efficient.

[0030] Optional, continue to refer to Figure 1The external signal sources include a flow meter (not shown in the figure) and a pressure gauge (not shown in the figure). The flow meter and pressure gauge are located on the pipeline connecting the high-pressure controller 6 and the water-cooling system 5. The input signals of the external signal output include the water flow signal detected by the flow meter in the pipeline and the water pressure signal detected by the pressure gauge in the pipeline. The operating signals input by the water-cooling system 5 through the communication module 4 include temperature signal, water level signal and resistivity signal. The control module 1 is also used to determine whether there are any abnormalities in the temperature signal, water level signal and resistivity signal when the water-cooling system 5 starts, and to generate a corresponding warning flag when there are any abnormalities in the temperature signal, water level signal and / or resistivity signal. It also determines whether there are any abnormalities in the water flow signal and water pressure signal, and to generate a corresponding warning flag when there are any abnormalities in the water flow signal and / or water pressure signal.

[0031] The flow meter is a water flow monitoring sensor installed in the pipeline connecting the high-pressure controller 6 and the water-cooling system 5. It is used to detect the flow rate of cooling water in the pipeline in real time and output an alarm signal when the flow rate is abnormal. The pressure gauge is a water pressure monitoring sensor installed in the pipeline connecting the high-pressure controller 6 and the water-cooling system 5. It is used to detect the water pressure of cooling water in the pipeline in real time and output an alarm signal when the water pressure is abnormal. The water flow signal is the on / off signal output by the flow meter. It is disconnected when the flow rate is normal and connected to the ground terminal when the flow rate is abnormal. It reflects whether the actual water flow rate in the pipeline is within the normal range and is used to determine whether a flow alarm has occurred. The water pressure signal is the on / off signal output by the pressure gauge. It is disconnected when the flow rate is normal and connected to the power supply terminal when the water pressure is abnormal. It reflects whether the actual water pressure in the pipeline is within the normal range and is used to determine whether a water pressure alarm has occurred. The temperature signal is a water temperature alarm flag reported by the water-cooling system 5 via the MODBUS protocol. It reflects whether the internal water temperature of the water-cooling system 5 is abnormal and is used to determine whether a water temperature alarm has occurred. The water level signal is a water level alarm flag reported by the water cooling system 5 via the MODBUS protocol. It reflects whether the water level inside the water cooling system 5 is abnormal and is used to determine whether a water level alarm has occurred. The resistivity signal is a water quality resistivity alarm flag reported by the water cooling system 5 via the MODBUS protocol. It reflects whether the cooling water quality inside the water cooling system 5 is abnormal and is used to determine whether a resistivity alarm has occurred.

[0032] Specifically, the water-cooling system 5 reports its internal alarm status information to the signal converter via the communication module 4, including three alarm flags: temperature, water level, and resistivity. The flow and pressure signals, however, are not generated by the water-cooling system 5, but are acquired by the flow meter and pressure gauge installed on the pipeline connecting the high-pressure controller 6 and the water-cooling system 5, respectively, both outputting on / off signals. Therefore, the converter's control module 1 needs to obtain complete alarm information from two different channels: firstly, by reading the internal temperature, water level, and resistivity status of the water-cooling system 5 via the communication module 4; and secondly, by directly acquiring the on / off signals output by the flow meter and pressure gauge in the pipeline via the signal input module 1.

[0033] After the water cooling system 5 starts up, the control module 1 first sends an alarm flag read command to the water cooling system 5 through the communication module 4. Upon receiving this command, the water cooling system 5 returns its internal alarm status information in the form of a MODBUS reply data frame. This reply data frame contains various alarm flag bits, including temperature alarm flag, water level alarm flag, and resistivity alarm flag. Each alarm flag bit is represented by a value of 0 or 1 to indicate whether the corresponding alarm has occurred (e.g., a 1 indicates an alarm has occurred, and a 0 indicates no alarm). After receiving the reply data frame, the control module 1 parses it, extracts the specific values ​​of the temperature alarm flag, water level alarm flag, and resistivity alarm flag from the specified bits of the data frame according to the protocol format, and then checks whether each flag bit is 1. When the temperature alarm flag is 1, it indicates an abnormal water temperature inside the water cooling system 5, and a corresponding temperature warning flag is generated. When the water level alarm flag is 1, it indicates an abnormal water level inside the water cooling system 5, and a corresponding water level warning flag is generated. When the resistivity alarm flag is 1, it indicates an abnormal water quality inside the water cooling system 5, and a corresponding resistivity warning flag is generated. If any flag is 0, it is considered normal, and no corresponding warning flag is generated. After judging the internal operating signals of the water cooling system 5, the control module 1 directly collects the on / off signals output by the flow meter and water pressure gauge installed on the pipeline connecting the high-pressure controller 6 and the water cooling system 5 through the signal input module 2. It reads the current water flow signal and water pressure signal level respectively. When the flow meter is working normally, its output terminal is disconnected from the ground terminal. When the water flow in the pipeline is abnormal, the output terminal is connected to the ground terminal. The control module 1 detects this connection level and judges that the water flow is abnormal, generating a flow warning flag. When the water pressure gauge is working normally, its output terminal is disconnected from the power supply terminal. When the water pressure in the pipeline is abnormal, the output terminal is connected to the power supply terminal. The control module 1 detects this connection level and judges that the water pressure is abnormal, generating a water pressure warning flag. Through the above two rounds of judgment, the control module 1 converts the alarm status of temperature, water level, and resistivity inside the water cooling system 5, as well as the alarm status of water flow and water pressure outside the pipeline, into corresponding early warning flags and summarizes them. Finally, it generates a control signal based on all the early warning flags and outputs it to the signal output module 3. The signal output module 3 converts each alarm signal into an on / off signal format that the high-pressure controller 6 can recognize and reports it to the high-pressure controller 6, so that the high-pressure controller 6 can obtain complete alarm information including internal alarms of the water cooling system and external monitoring of the pipeline.

[0034] In another specific embodiment, Figure 2 This is a schematic diagram of another signal converter provided in an embodiment of the present invention, with reference to... Figure 2As shown, optionally, the signal converter also includes an indicator light module 7; the indicator light module 7 is electrically connected to the control module 1; the control module 1 is also used to control the indicator light module 7 to light up in a preset manner while generating the corresponding warning flag.

[0035] Among them, indicator module 7 is an LED signal light group installed on the PCB board of the signal converter. It is used to intuitively indicate the current alarm category through different combinations of on and off LEDs, so that on-site personnel can obtain alarm information without relying on the machine screen.

[0036] Specifically, the signal converter also includes an indicator light module 7, which may include multiple LED indicator lights and is electrically connected to the control module 1, being directly driven by the control module 1. During the entire operation of the signal converter, in addition to reading the temperature, water level, and resistivity alarm flags inside the water-cooling system 5 through the communication module 4 and collecting the on / off signals of the flow meter and pressure gauge in the pipeline through the signal input module 1 and performing logical judgments, the control module 1 also synchronously controls the indicator light module 7 to light up according to a preset method when each alarm flag is generated. In this embodiment, the preset method of the indicator light module 7 can include various implementation forms. For example, a single correspondence method can be used, where each alarm corresponds to an independent LED indicator light. When an alarm occurs, its corresponding LED lights up individually, and on-site personnel can directly identify the alarm type by the lit LED. As another embodiment, a combined encoding method can also be used, where three LED indicator lights are used, and different combinations of the on / off states of the three LEDs encode different alarm categories. For example, up to eight combinations can be encoded using three LEDs, fully covering the display requirements of five alarms. This method has low hardware cost and a small PCB footprint. As another embodiment, a flashing frequency method can also be used, that is, one or two LED indicator lights can be used to distinguish alarm types by different flashing frequencies. For example, a constant light indicates a temperature alarm, a slow flash indicates a water level alarm, and a fast flash indicates a flow alarm. The corresponding lighting logic for all of the above methods can be preset in the program of control module 1. When control module 1 generates a certain warning flag, it synchronously drives indicator light module 7 to light up according to the preset method, so that on-site personnel can quickly know the current alarm category without checking the machine screen.

[0037] As an optional embodiment, when the temperature alarm flag is set to 1 and a temperature warning flag is generated, the control module 1 illuminates the corresponding LED indicator light according to a preset on / off state. Similarly, when the water level alarm flag is set to 1 and a water level warning flag is generated, the control module 1 illuminates the corresponding LED indicator light. Likewise, for resistivity alarms, water flow alarms, and water pressure alarms, the corresponding LED indicator lights illuminate simultaneously with the generation of the corresponding warning flag. Furthermore, the three LED indicator lights, through different combinations of on / off states, can intuitively distinguish and display the specific alarm category. For example, when a water level alarm occurs, the control module 1 controls the corresponding LED indicator light to illuminate. On-site personnel do not need to check the machine operation screen or connect to a computer to read logs; they can quickly determine the type of alarm occurring in the water cooling system simply by observing the illumination status of the LED indicator lights on the signal converter, thus enabling immediate fault location and targeted troubleshooting. The control module 1 controls the indicator module 7 and the signal output module 3 synchronously. Both are driven by the same set of warning flags. The signal output module 3 is responsible for reporting the on / off signal to the high voltage controller 6 to trigger the protection action of the machine. The indicator module 7 is responsible for providing visual alarm prompts to the on-site personnel. The two functions complement each other, execute in parallel, and do not interfere with each other.

[0038] In another specific embodiment, reference continues... Figure 2 Optionally, the signal converter also includes a reset module 8; the reset module 8 is electrically connected to the control module 1; the control module 1 is also used to clear the alarm status corresponding to the abnormal warning flag bit when the reset module 8 is detected to be triggered.

[0039] Among them, the reset module 8 is a self-resetting tactile switch (such as a RESET button) installed on the PCB board of the signal converter. It is used by the staff to manually press after confirming that the abnormal water pressure has been eliminated, so as to trigger the control module to clear the corresponding warning flag and restore the normal output state.

[0040] Specifically, during actual operation, control module 1 continuously monitors various input signals collected by signal input module 2 and operating signals returned by water cooling system 5 through communication module 4. When an abnormality is detected, a corresponding warning flag is generated, and an on / off signal is output to high-pressure controller 6 through signal output module 3 to trigger machine alarm protection. However, among the five alarm signals, the water pressure alarm has special characteristics. When the water pressure in the pipeline is abnormal, the output terminal of the water pressure gauge is connected to the power supply terminal. After detecting this connection level, control module 1 generates a water pressure warning flag and continuously reports the water pressure alarm signal to high-pressure controller 6 through signal output module 3. However, after receiving the water pressure alarm, high-pressure controller 6 does not automatically reset the alarm state after the alarm is cleared. That is, high-pressure controller 6 itself cannot clear the water pressure alarm signal. If only machine-side clearing is relied upon, the water pressure alarm will remain locked, causing the machine to remain in alarm protection state and unable to resume normal operation. Therefore, a reset method independent of machine-side needs to be provided to clear the water pressure alarm state. In this embodiment, after the operator confirms that the abnormal water pressure in the pipeline has been eliminated and returned to normal, they manually press the reset module 8 (e.g., the RESET button). When the button is pressed, a level transition signal is generated (e.g., from high level to low level). After the control module 1 detects this level change in a loop, it recognizes it as a reset trigger signal and immediately clears the water pressure warning flag bit within the program, restoring the corresponding water pressure alarm flag variable from the alarm state to the normal state. After the clearing action takes effect, in the next loop of alarm output execution, since the water pressure warning flag bit has been cleared, the control module 1 no longer sends the water pressure alarm control signal to the signal output module 3. Therefore, the signal output module 3 restores the water pressure alarm output channel to the default level state when there is no alarm. After the high-pressure controller 6 detects this level restoration, it determines that the water pressure alarm has been lifted, and the machine can exit the alarm protection state and resume normal operation.

[0041] It should be noted that the reset module 8 in this embodiment is specifically used to clear the warning flag and alarm status corresponding to the water pressure alarm. It does not apply to other types of alarms (such as temperature, water level, resistivity, and flow alarms), because these alarms can be automatically reset through the machine's own logic or the status update of the water cooling system after the anomaly is cleared, without manual intervention. The introduction of the reset module 8 effectively solves the practical engineering problem that the machine cannot automatically clear the water pressure alarm signal, providing operators with a simple and clear on-site restoration method without affecting the normal operation of other alarm channels.

[0042] In another specific embodiment, optionally, reference continues. Figure 2The signal converter also includes a first optocoupler isolator (not shown in the figure) and a second optocoupler isolator (not shown in the figure); the first optocoupler isolator is located between the external signal source (not shown in the figure) and the signal input module 2, and the second optocoupler isolator is located between the high voltage controller 6 and the signal output module 3.

[0043] The first optocoupler is an optocoupler isolation device installed in the circuit path between the external signal source and the signal input module 2, used to electrically isolate the external signal source side from the converter control side, blocking the direct electrical connection between the two sides. The second optocoupler is an optocoupler isolation device installed in the circuit path between the high-voltage controller 6 and the signal output module 3, used to electrically isolate the converter control side from the high-voltage controller 6 side, blocking the direct electrical connection between the two sides, and preventing strong electrical interference, common-mode noise, or abnormal high voltage from the high-voltage controller side from being conducted back to the converter through the circuit.

[0044] Specifically, by placing the first optocoupler isolator on the circuit path between the external signal source (i.e., flow meter, pressure gauge) and the signal input module 2, the on / off signal output from the external signal source is photoelectrically converted by the first optocoupler isolator and then sent to the signal input module 2. This eliminates the direct electrical connection between the external signal source and the internal control side of the converter, thereby blocking voltage surges, electrostatic discharges, or grounding loop interference from the external side from being conducted into the converter, protecting the control module 1 from damage. The second optocoupler isolator is placed on the circuit path between the high-voltage controller 6 and the signal output module 3. The control signal generated by the signal output module 3 is photoelectrically converted by the second optocoupler isolator and then output to the alarm signal input terminal of the high-voltage controller 6. This eliminates the direct electrical connection between the internal control side of the converter and the high-voltage controller side, thereby preventing strong electrical interference or abnormal high voltage from the high-voltage controller side from being conducted back into the converter. With the cooperation of the first and second optocouplers, the signal converter achieves complete electrical isolation from external devices on both the input and output paths, effectively protecting the internal circuitry of the converter from damage caused by external electrical interference and shocks, while ensuring the accuracy of signal transmission and ensuring that the converter can work stably for a long time in the complex electrical environment of the semiconductor equipment.

[0045] Based on the same inventive concept Figure 3 A flowchart of a control method for a signal converter provided in an embodiment of the present invention is shown below. Figure 3 As shown, the method includes: S110, The input signal received by the receiving signal input module; the input signal includes at least the input signal output by the high voltage controller and the input signal output by the external signal source.

[0046] S120. Determine the start-stop control mode of the water cooling system based on the input signal.

[0047] S130. When the water cooling system starts up, based on the input signal and the operating signal received by the water cooling system through the communication module, a corresponding warning flag is generated when the operating signal and / or input signal are abnormal.

[0048] S140. Generate a control signal corresponding to the warning flag bit and send it to the signal output module so that the signal output module outputs an on / off signal to the high voltage controller according to the control signal.

[0049] Specifically, during actual operation, the signal input module receives external input signals in real time. These input signals include at least the input signals output by the high-pressure controller (such as start / stop control signals) and the input signals output by external signal sources (such as flow meters, pressure gauges, etc.) (such as detection signals). Upon receiving the input signals from the signal input module, it first identifies the input signal output by the high-pressure controller. Based on this input signal and the previously received input signal, it determines whether the machine expects the water cooling system to start or stop. Then, it sends the corresponding start / stop command to the water cooling system via the communication module, ensuring synchronization between the water cooling system's start / stop and the machine's commands. When it is determined that the water cooling system needs to be started, a corresponding start command is sent to the water cooling system via the communication module. After the water cooling system starts running, it continuously reads the operating signals returned by the water cooling system through the communication module. These operating signals contain internal alarm status information of the water cooling system. Simultaneously, it monitors various input signals received by the signal input module to detect any anomalies in external signal sources in real time. By combining the aforementioned operating signals and input signals for logical judgment, once an alarm is detected within the water cooling system or an anomaly is detected by an external signal source, a corresponding warning flag is generated. Based on this warning flag, a corresponding control signal is generated and output to the signal output module. The signal output module converts this control signal into an on / off signal that the high-voltage controller can recognize. By changing the on / off state between the signal pin and the ground terminal, it simulates the alarm signal reporting method of the original water cooling system, accurately transmitting the alarm information to the high-voltage controller. Therefore, the high-voltage controller can correctly identify the alarm category and trigger the machine protection mechanism, just as it would when receiving an alarm signal from the original water cooling system, thus achieving a complete replacement of the original water cooling system with a non-original one.

[0050] The technical solution of this invention involves receiving input signals through a signal input module. These input signals include at least the input signal output from the high-voltage controller and the input signal output from an external signal source. The start-up and shutdown control mode of the water-cooling system is determined based on the input signals. When the water-cooling system starts, a corresponding warning flag is generated when the operating signal and / or input signal are abnormal, based on the input signals and the received operating signal from the water-cooling system via the communication module. A control signal corresponding to the warning flag is generated and sent to the signal output module, causing the signal output module to output an on / off signal to the high-voltage controller. This method achieves signal matching and normal communication between the non-original water-cooling system and the machine's high-voltage controller. It also overcomes the technical problem of incomplete alarm information in non-original water-cooling systems, which leads to inaccurate anomaly detection, thus reducing costs and offering strong applicability.

[0051] In another specific embodiment, Figure 4 This is a flowchart of another signal converter control method provided by an embodiment of the present invention. This embodiment refines the specific implementation of S120 in the above embodiment, which involves determining the start-stop control mode of the water cooling system based on the input signal, as follows: Receive start / stop signals; When the current start / stop signal is different from the previous start / stop signal, a start / stop command is sent to the water cooling system through the communication module.

[0052] Furthermore, the specific implementation of S130, which generates a corresponding warning flag bit when the operating signal and / or input signal are abnormal, based on the input signal and the operating signal received from the water-cooling system via the communication module, is detailed as follows: Based on the temperature signal, water level signal, and resistivity signal, determine whether there are any abnormalities in the temperature signal, water level signal, and resistivity signal. When there are abnormalities in the temperature signal, water level signal, and / or resistivity signal, a corresponding warning flag will be generated. Determine whether there are any abnormalities in the water flow and water pressure signals based on the water flow and water pressure signals. When there are abnormalities in the water flow signal and / or water pressure signal, a corresponding warning flag will be generated.

[0053] Furthermore, in addition to generating the corresponding warning flag in S130 when the operating signal and / or input signal are abnormal, the following steps are added: The control indicator module illuminates according to a preset method.

[0054] For details not covered in this embodiment, please refer to the above embodiments, which will not be repeated here.

[0055] refer to Figure 4 As shown, the method includes: S210, The input signal received by the receiving signal input module; the input signal includes at least the input signal output by the high voltage controller and the input signal output by the external signal source.

[0056] The high-pressure controller outputs start / stop signals; the external signal outputs input signals including the water flow rate signal detected by the flow meter and the water pressure signal detected by the pressure gauge; and the water cooling system inputs operating signals through the communication module including temperature signal, water level signal, and resistivity signal.

[0057] S220, Receive start / stop signals.

[0058] S230. When the current start / stop signal is different from the previous start / stop signal, a start / stop command is sent to the water cooling system through the communication module.

[0059] Specifically, the high-voltage controller of the machine outputs start / stop signals as on / off signals, expressing control intent through the conduction or disconnection state of two pins. For example, on indicates that the water cooling system needs to be started, and off indicates that the water cooling system needs to be stopped. This start / stop signal remains in the same state when there is no change in command. However, non-original water cooling systems do not receive start / stop commands through on / off signals, but rather control them by sending start or stop commands through a communication module. Therefore, it is necessary to convert the machine's continuous on / off state into a serial command that the water cooling system can receive, and send the command only once when the machine's command changes, to avoid communication conflicts caused by repeated transmissions.

[0060] In actual operation, the status of the start / stop signal is continuously monitored using a cyclic scanning method. In each cycle, the on / off state of the current status is read and compared sequentially with the state saved in the previous cycle. The core purpose of this comparison is to determine whether the high-voltage controller's command has changed. When the current state differs from the previous state, it indicates that the machine has just issued a new control intention. Specifically, if the current start / stop signal is on while the previous one was off, it means the machine has issued a command to start the water cooling system; if the current start / stop signal is off while the previous one was on, it means the machine has issued a command to stop the water cooling system. When such a change is detected, the corresponding start or stop command is sent to the water cooling system via the communication module, ensuring that the water cooling system's start / stop actions are synchronized with the machine's command in real time. If the current state is the same as the previous state, it means the machine's command has not changed, and no command is sent to the water cooling system to avoid redundant communication causing invalid responses or communication interference. After completing the above judgment and sending operations, the state read this time is saved as the new "previous start / stop signal" as the comparison benchmark for the next cycle. By using this edge-detection-based state change judgment mechanism, the on / off signal continuously maintained by the high-voltage controller is successfully converted into a serial command that the water-cooling system can receive. The command is sent precisely only when it changes, which ensures that the water-cooling system responds to the machine start-up and stop commands in a timely and accurate manner, and avoids the transmission of invalid and redundant data on the communication link, making the start-up and stop control process precise and efficient.

[0061] S240. When the water cooling system is started, determine whether there are any abnormalities in the temperature signal, water level signal, and resistivity signal based on the temperature signal, water level signal, and resistivity signal.

[0062] S250 generates a corresponding warning flag when there is an abnormality in the temperature signal, water level signal and / or resistivity signal, and at the same time controls the indicator light module to light up in a preset manner.

[0063] S260. Based on the water flow signal and water pressure signal, determine whether there are any abnormalities in the water flow signal and water pressure signal.

[0064] S270: When there is an abnormality in the water flow signal and / or water pressure signal, a corresponding warning flag is generated, and the indicator light module is controlled to light up in a preset manner.

[0065] Specifically, the water-cooling system reports its internal alarm status information to the signal converter via a communication module, including three alarm flags: temperature, water level, and resistivity. The flow and pressure signals, however, are not generated by the water-cooling system itself, but are acquired separately by flow meters and pressure gauges installed on the pipeline connecting the high-pressure controller and the water-cooling system. Both output as on / off signals. Therefore, complete alarm information needs to be obtained from two different channels: firstly, by reading the internal temperature, water level, and resistivity status of the water-cooling system through the communication module; and secondly, by directly acquiring the on / off signals output by the flow meters and pressure gauges in the pipeline through the signal input module.

[0066] After the water cooling system starts up, an alarm flag read command is first sent to the water cooling system via the communication module. Upon receiving the command, the water cooling system returns its internal alarm status information in the form of a MODBUS reply data frame. This reply data frame contains various alarm flag bits, including temperature alarm flag, water level alarm flag, and resistivity alarm flag. Each alarm flag bit is represented by a value of 0 or 1, indicating whether an alarm has occurred (e.g., 1 indicates an alarm has occurred, 0 indicates no alarm). Upon receiving the reply data frame, it is parsed, and the specific values ​​of the temperature alarm flag, water level alarm flag, and resistivity alarm flag are extracted from the specified bits of the data frame according to the protocol format. Then, each flag bit is checked one by one to see if it is 1. When the temperature alarm flag is 1, it indicates an abnormal water temperature inside the water cooling system, and a corresponding temperature warning flag is generated; when the water level alarm flag is 1, it indicates an abnormal water level inside the water cooling system, and a corresponding water level warning flag is generated; when the resistivity alarm flag is 1, it indicates an abnormal water quality inside the water cooling system, and a corresponding resistivity warning flag is generated. If a certain flag bit is 0, it is judged as normal, and no corresponding warning flag bit is generated. After completing the judgment of the internal operating signals of the water cooling system, the on / off signals output by the flow meter and water pressure gauge installed on the pipeline connecting the high-pressure controller and the water cooling system are directly collected through the signal input module. The level status of the current water flow signal and water pressure signal are read respectively. When the flow meter is working normally, its output terminal is disconnected from the ground terminal. When the water flow in the pipeline is abnormal, the output terminal is connected to the ground terminal. After detecting this connection level, it can be judged that the water flow is abnormal and a flow warning flag bit is generated. When the water pressure gauge is working normally, its output terminal is disconnected from the power supply terminal. When the water pressure in the pipeline is abnormal, the output terminal is connected to the power supply terminal. After detecting this connection level, it can be judged that the water pressure is abnormal and a water pressure warning flag bit is generated. Through the above two rounds of judgment, the alarm status of temperature, water level, and resistivity inside the water cooling system, as well as the alarm status of water flow and water pressure outside the pipeline, are all converted into corresponding early warning flags and summarized. Finally, a control signal is generated based on all the early warning flags and output to the signal output module. The signal output module converts each alarm signal into an on / off signal format that the high-pressure controller can recognize and reports it to the high-pressure controller, so that the high-pressure controller can obtain complete alarm information including internal water cooling alarms and external pipeline monitoring.

[0067] In addition, simultaneously with the generation of each warning flag, the indicator light module is also controlled to illuminate according to a preset method. In this embodiment, the preset method of the indicator light module can include various implementation forms. For example, a single correspondence method can be used, where each alarm corresponds to an independent LED signal light. When an alarm occurs, its corresponding LED lights up individually, and on-site personnel can directly identify the alarm type by the lit LED. As another embodiment, a combined encoding method can also be used, that is, using three LED signal lights, and using different combinations of the on / off states of the three LEDs to encode different alarm categories. For example, up to eight combinations can be encoded using three LEDs, fully covering the display requirements of five alarms. This method has low hardware cost and small PCB area. As yet another embodiment, a flashing frequency method can also be used, that is, using one or two LED signal lights, and using different flashing frequencies to distinguish alarm types, such as constant light indicating temperature alarm, slow flashing indicating water level alarm, and fast flashing indicating flow alarm, etc. The above methods can all be pre-set with corresponding lighting logic in the program of control module 1. When a certain warning flag is generated, the indicator light module will be driven to light up synchronously according to the preset method, so that on-site personnel can quickly know the current alarm category without looking at the machine screen.

[0068] As an optional embodiment, when the temperature alarm flag is determined to be 1 and a temperature warning flag is generated, the corresponding LED indicator light for the temperature alarm is illuminated according to a preset on / off state. Similarly, when the water level alarm flag is determined to be 1 and a water level warning flag is generated, the corresponding LED indicator light for the water level alarm is illuminated. Likewise, for resistivity alarms, water flow alarms, and water pressure alarms, the corresponding LED indicator lights are illuminated simultaneously with the generation of the corresponding warning flag. Furthermore, the three LED indicator lights, through different combinations of on / off states, can intuitively distinguish and display the specific alarm category currently occurring. For example, when a water level alarm occurs, the corresponding LED indicator light for the water level alarm is illuminated. On-site personnel do not need to check the machine operation screen or connect to a computer to read logs; they can quickly determine the type of alarm occurring in the water cooling system simply by observing the illumination status of the LED indicator lights on the signal converter, thereby immediately locating the fault and conducting targeted troubleshooting.

[0069] The technical solution of this invention enables hierarchical and orderly monitoring of the integrity of the water cooling system and pipelines, and simultaneously illuminates indicator lights each time an anomaly is detected, allowing on-site personnel to know the alarm category in real time without having to check the machine screen; at the same time, start and stop commands are sent only once at the moment the machine command changes, avoiding repeated and invalid communication to the water cooling system, making the entire signal conversion process logically clear, timely in response, and highly efficient in operation.

[0070] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0071] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A signal converter for connecting a machine tool's high-voltage controller and a water-cooling system, characterized in that, It includes a control module, and a signal input module, a signal output module, and a communication module electrically connected to the control module; the communication module is also communicatively connected to the water cooling system; the signal output module is electrically connected to the high-voltage controller; The signal input module is used to receive input signals; the input signals include at least the input signal output by the high-voltage controller and the input signal output by an external signal source; The control module is used to receive the input signal and determine the start-stop control mode of the water cooling system according to the input signal. When the water cooling system starts, it generates a corresponding warning flag bit when the operating signal and / or the input signal are abnormal, based on the input signal and the operating signal received by the water cooling system through the communication module. It also generates a control signal corresponding to the warning flag bit and sends it to the signal output module. The signal output module is used to receive the control signal from the control module and output an on / off signal to the high voltage controller according to the control signal.

2. The signal converter according to claim 1, characterized in that, The input signals output by the high-voltage controller include start and stop signals; The control module is also used to receive the start / stop signal, and when the current start / stop signal is different from the previous start / stop signal, to send a start / stop command to the water cooling system through the communication module.

3. The signal converter according to claim 1, characterized in that, The external signal source includes a flow meter and a pressure gauge, which are located on the pipeline connecting the high-pressure controller and the water cooling system. The input signals output by the external signal source include the water flow rate signal detected by the flow meter and the water pressure signal detected by the pressure gauge. The operating signals input by the water cooling system through the communication module include temperature signal, water level signal, and resistivity signal. The control module is further configured to, when the water cooling system is started, determine whether the temperature signal, water level signal, and resistivity signal are abnormal based on the temperature signal, the water level signal, and the resistivity signal, and generate a corresponding warning flag when the temperature signal, the water level signal, and / or the resistivity signal are abnormal; and determine whether the water flow signal and the water pressure signal are abnormal based on the water flow signal and the water pressure signal, and generate a corresponding warning flag when the water flow signal and / or the water pressure signal are abnormal.

4. The signal converter according to claim 1, characterized in that, It also includes an indicator light module; the indicator light module is electrically connected to the control module; The control module is also used to control the indicator light module to light up in a preset manner while generating the corresponding warning flag.

5. The signal converter according to claim 1, characterized in that, It also includes a reset module; the reset module is electrically connected to the control module; The control module is also used to clear the alarm status corresponding to the abnormal warning flag bit when the reset module is detected to be triggered.

6. The signal converter according to claim 1, characterized in that, It also includes a first optocoupler isolator and a second optocoupler isolator; The first optocoupler is located between the external signal source and the signal input module, and the second optocoupler is located between the high-voltage controller and the signal output module.

7. A control method for a signal converter, characterized in that, include: The input signal received by the receiving signal input module includes at least the input signal output by the high-voltage controller and the input signal output by the external signal source. The start / stop control mode of the water cooling system is determined based on the input signal. When the water cooling system starts up, a corresponding warning flag is generated when the operating signal and / or the input signal are abnormal, based on the input signal and the operating signal received by the water cooling system through the communication module. Based on the warning flag, a control signal corresponding to the warning flag is generated and sent to the signal output module, so that the signal output module outputs an on / off signal to the high voltage controller according to the control signal.

8. The control method for the signal converter according to claim 7, characterized in that, The input signals output by the high-voltage controller include start and stop signals; The start-up and shutdown control mode of the water cooling system is determined based on the input signal, including: Receive the start / stop signal; When the current start / stop signal is different from the previous start / stop signal, a start / stop command is sent to the water cooling system through the communication module.

9. The control method for the signal converter according to claim 7, characterized in that, The input signals output by the external signal include the water flow rate signal in the pipeline detected by the flow meter and the water pressure signal in the pipeline detected by the water pressure gauge. The operating signals input by the water cooling system through the communication module include temperature signal, water level signal and resistivity signal. Based on the input signal and the received operating signal from the water cooling system via the communication module, a corresponding warning flag is generated when the operating signal and / or the input signal is abnormal, including: Based on the temperature signal, the water level signal, and the resistivity signal, determine whether there are any abnormalities in the temperature signal, the water level signal, and the resistivity signal; When the temperature signal, the water level signal, and / or the resistivity signal are abnormal, a corresponding warning flag is generated; Based on the water flow signal and the water pressure signal, determine whether there are any abnormalities in the water flow signal and the water pressure signal; When there is an abnormality in the water flow signal and / or the water pressure signal, a corresponding warning flag will be generated.

10. The control method for the signal converter according to claim 7, characterized in that, The signal converter also includes an indicator light module; In addition to generating a corresponding warning flag when the operating signal and / or the input signal is abnormal, the system also includes: The indicator light module is controlled to light up according to a preset method.

Images