Control method and device for machine room safety, machine room and storage medium

Abstract

The application relates to the refrigeration technical field and discloses a control method for the safety of a machine room, which comprises the following steps: detecting the refrigerant concentration in a water chilling unit to obtain a first concentration value d1; detecting the refrigerant concentration in the machine room environment to obtain a second concentration value d2; in the case that the water chilling unit and other electrical equipment are all powered off, controlling the power-on start of the water chilling unit and the other electrical equipment according to the values d1 and d2, and / or in the case that the water chilling unit and the other electrical equipment are all powered on, controlling the operation of the water chilling unit and the other electrical equipment according to the values d1 or d2. Compared with the scheme in the related art, which does not consider the operation states of the unit and other equipment and only sets a single sensor, the application refines the safety control strategies for the machine room under different conditions by combining the actual working states and the concentration values of multiple environments, so that the safety of the machine room monitoring is improved. The application also discloses a control device for the safety of a machine room, an electronic equipment and a storage medium.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and more specifically, to a control method, device, computer room, and storage medium for computer room security. Background Technology

[0002] Currently, various types of environmentally friendly refrigerants are used in air conditioning equipment. However, some refrigerants are slightly flammable, making safety a primary concern for units using these refrigerants. This is especially true for water-cooled central air conditioning units, which require a large refrigerant charge (several hundred kilograms), making the safe operation of these units paramount.

[0003] The relevant technology mentions that when the refrigerant leakage concentration rises and reaches the alarm threshold, the alarm control panel outside the computer room will issue an audible and visual alarm. Simultaneously, it will activate the exhaust ventilation equipment to ensure both alarm activation and timely response.

[0004] However, the relevant technologies only trigger an alarm and exhaust ventilation when the refrigerant concentration is high, without analyzing the actual situation of the chiller unit. This results in insufficient and inadequate management of the computer room's safety. Summary of the Invention

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a control method, apparatus, computer room, and storage medium for computer room security, thereby improving the security of computer room monitoring.

[0007] In some embodiments, the control method for computer room security includes: detecting the refrigerant concentration in the chiller unit to obtain a first concentration value d1; detecting the refrigerant concentration in the computer room environment to obtain a second concentration value d2; controlling the power-on and startup of the chiller unit and other electrical equipment according to d1 and d2 when the chiller unit and other electrical equipment are both de-energized; and / or controlling the operation of the chiller unit and other electrical equipment according to d1 or d2 when the chiller unit and other electrical equipment are both energized.

[0008] Optionally, in the above technical solution, the control method for computer room security also includes:

[0009] Based on the user's input instructions, determine the first concentration threshold D1 and the second concentration threshold D2;

[0010] Among them, D1 <D2。

[0011] Optionally, in the above technical solution, controlling the power-on startup of the chiller and other electrical equipment according to d1 and d2 when both the chiller and other electrical equipment are powered off includes:

[0012] When d1 < D1 and d2 < D1, controlling the status of the chiller and other electrical equipment to be in an operable state so as to power on and start when receiving a startup instruction;

[0013] When d1 ≥ D1 or d2 ≥ D1, controlling the status of the chiller and other electrical equipment to be in a non-operable state and performing a preset operation according to d1 and d2.

[0014] Optionally, in the above technical solution, performing a preset operation according to d1 and d2 includes:

[0015] When D1 ≤ d1 ≤ D2 and d2 ≤ D2, or when D1 ≤ d2 ≤ D2 and d1 ≤ D2, enabling the mechanical ventilation function;

[0016] When d1 > D2 or d2 > D2, sending out a concentration alarm signal.

[0017] Optionally, in the above technical solution, controlling the operation of the chiller and other electrical equipment according to d1 or d2 when both the chiller and other electrical equipment are powered on includes:

[0018] When D1 ≤ d1 ≤ D2 and d2 ≤ D2, or when D1 ≤ d2 ≤ D2 and d1 ≤ D2, controlling the chiller to operate at reduced load;

[0019] When d1 > D2 or d2 > D2, controlling the chiller and other electrical equipment to power off and enabling the mechanical ventilation function.

[0020] Optionally, in any of the above technical solutions, the control method for computer room safety further includes:

[0021] Performing a fault detection on the first sensor and the second sensor.

[0022] Optionally, in the above technical solution, if a fault is detected in the first sensor or the second sensor, sending out a fault signal to prompt the user to perform maintenance.

[0023] In some embodiments, the control device for computer room safety includes: a processor and a memory storing program instructions, and the processor is configured to execute the above control method for computer room safety when running the program instructions.

[0024] In some embodiments, the computer room includes: a chiller and other electrical equipment;

[0025] The central control unit is used to control the operation or shutdown of equipment in the computer room;

[0026] The first sensor is installed in and electrically connected to the chiller unit, and is used to detect the refrigerant concentration in the chiller unit.

[0027] The second sensor is set within a predetermined range around the chiller unit and is electrically connected to the main control unit to detect the refrigerant concentration in the computer room environment.

[0028] An alarm system is used to send alarm messages.

[0029] Ventilation system, used for mechanical ventilation of the computer room;

[0030] Such as the control devices used for computer room security mentioned above.

[0031] The control method, apparatus, computer room, and storage medium for data center security provided in this disclosure can achieve the following technical effects:

[0032] This disclosure relates to the field of refrigeration technology. This application includes a sensor both inside and outside the chiller unit to detect refrigerant concentrations d1 and d2 in the unit and the computer room environment, respectively. Furthermore, considering the current operating status of the chiller unit and other electrical equipment, the application performs operational control on the chiller unit and other electrical equipment based on different operating states and the magnitudes of d1 and d2 concentrations. Compared to related technologies that do not consider the operating status of the unit and other equipment and only use a single sensor, this application refines the safety control strategy for the computer room under different conditions by combining actual operating states and concentration values ​​from multiple environments, thereby improving the security of computer room monitoring.

[0033] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0034] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0035] Figure 1 This is a schematic diagram of a control method for computer room security provided in an embodiment of this disclosure;

[0036] Figure 2 This is a schematic diagram of another control method for computer room security provided in an embodiment of this disclosure;

[0037] Figure 3 This is a schematic diagram of another control method for computer room security provided in an embodiment of this disclosure;

[0038] Figure 4 This is a schematic diagram of another control method for computer room security provided in an embodiment of this disclosure;

[0039] Figure 5 This is a schematic diagram of a control device for computer room security provided in an embodiment of this disclosure;

[0040] Figure 6 This is a schematic diagram of a computer room provided in an embodiment of this disclosure. Detailed Implementation

[0041] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other instances, well-known structures and devices may be simplified in their illustration to simplify the drawings. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0042] The chiller units in air conditioning equipment rooms contain various types of refrigerants. These refrigerants are slightly flammable, and when the concentration is too high, they can easily combine with electrical sparks in the room, causing combustion or even an explosion. Current computer room safety protocols typically rely on common sense: if a high refrigerant concentration is detected, ventilation is required to reduce it, or an alarm is triggered to notify personnel for timely action. There is no specific method for controlling refrigerant concentration in the computer room to address excessively high refrigerant levels, thus failing to guarantee the reliability of computer room safety.

[0043] In fact, refrigerants commonly used in air conditioning equipment, such as R1234ze(E), are increasingly being used due to their GWP (Global Warming Potential) of 1. However, these refrigerants are typically flammable, so safety is the primary concern for units using them. This is especially true for water-cooled central air conditioning units, which typically have refrigerant charges exceeding several hundred kilograms. For flammable gases, combustion requires three conditions: an ignition source, oxygen, and a sufficient concentration of combustible material. Water-cooled chillers are installed in dedicated machine rooms, which cannot be in a vacuum or filled with inert gases. Ignition sources often originate from electrical sparks generated by electrical equipment. Therefore, monitoring refrigerant concentration has become a key aspect of machine room safety management.

[0044] Therefore, this application proposes a control method, device, computer room, and storage medium for computer room security. Among them, combined with... Figure 5 and Figure 6 As shown, the computer room includes a chiller unit 601 and other electrical equipment 602, as well as a first sensor 603 for detecting the refrigerant concentration in the chiller unit 601 and a second sensor 604 for detecting the refrigerant concentration in the computer room environment. In addition, the computer room also includes a ventilation system 605 for mechanical ventilation, a central control unit 606 for controlling the chiller unit and electrical equipment in the computer room, an alarm system 607 for issuing alerts, and a control device 608 for computer room safety.

[0045] The control device 608 for computer room security includes a processor 500 and a memory 501. Optionally, the device may also include a communication interface 502 and a bus 503. The processor 500, communication interface 502, and memory 501 can communicate with each other via the bus 503. The communication interface 502 can be used for information transmission. The processor 500 can call logical instructions in the memory 501 to execute control methods for computer room security.

[0046] Combination Figure 1 As shown in the embodiments of this disclosure, a control method for data center security is provided, including:

[0047] S101, the control device detects the refrigerant concentration in the chiller unit and obtains the first concentration value d1.

[0048] S102, the control device detects the refrigerant concentration in the computer room environment and obtains the second concentration value d2.

[0049] S103, the control device controls the power-on start of the chiller unit and other electrical equipment according to d1 and d2 when the chiller unit and other electrical equipment are de-energized, and / or controls the operation of the chiller unit and other electrical equipment according to d1 or d2 when the chiller unit and other electrical equipment are energized.

[0050] Using the control method for computer room safety provided by the embodiments of the present disclosure, first, a sensor is respectively arranged inside and outside the unit to detect the refrigerant concentrations d1 and d2 in the unit and the computer room environment. Furthermore, considering the current operating states of the chiller and other electrical equipment, the chiller and other electrical equipment are controlled to operate according to different working states and the magnitudes of the d1 and d2 concentration values. Compared with the related art that does not consider the operating states of the unit and other equipment and only sets a single sensor, the present application refines the safety control strategy for the computer room in different situations by combining the actual working state and the concentration values in multiple environments, thereby improving the safety of computer room monitoring.

[0051] Optionally, in addition to respectively arranging a sensor inside and outside the unit to detect the refrigerant concentrations d1 and d2 in the unit and the computer room environment, the present application also sets two concentration thresholds. Including the first concentration threshold D1 and the second concentration threshold D2, where D1 < D2. These two concentration thresholds are mainly used to distinguish the warning stage and the alarm stage, that is, when the current environmental concentration is between the first concentration threshold and the second concentration threshold, it is the warning stage, and when it is greater than the second concentration threshold, it enters the alarm stage. The above first concentration threshold D1 and second concentration threshold D2 can also be understood as the warning value and the alarm value. By setting the warning value and the alarm value, the monitoring of the refrigerant concentration can be made more rigorous in combination with the actual situation of the current concentration. Of course, more thresholds can also be set to divide multiple stages, so that the monitoring of the refrigerant concentration can be made more rigorous, and the safety control of the computer room for different concentration values can be refined. Here, taking the refrigerant as R1234ze(E) as an example, its lower flammable concentration limit is 16000 ppm, and combustion will occur after exceeding this concentration and meeting the combustion conditions. Both the warning value and the alarm value need to be much lower than the lower flammable concentration limit. This solution is introduced with D1 = 150 ppm and D2 = 500 ppm as an example.

[0052] Optionally, as shown in Figure 2 Another schematic diagram of the control method for computer room safety is provided.

[0053] S201, the control device detects the refrigerant concentration in the chiller to obtain the first concentration value d1.

[0054] S202, the control device detects the refrigerant concentration in the computer room environment to obtain the second concentration value d2.

[0055] S203, the control device determines whether the chiller and other electrical equipment are in a power-off state currently.

[0056] S2041. When the control device is in the power-off state of the chiller and other electrical equipment, and when d1 < D1 and d2 < D1, the control device controls the states of the chiller and other electrical equipment to the operable state.

[0057] S2042. When the control device is in the power-off state of the chiller and other electrical equipment, and when D1 ≤ d1 ≤ D2 and d2 ≤ D2, or when D1 ≤ d2 ≤ D2 and d1 ≤ D2, the control device controls the states of the chiller and other electrical equipment to the inoperable state and activates the mechanical ventilation function.

[0058] S2043. When the control device is in the power-off state of the chiller and other electrical equipment, and when d1 > D2 or d2 > D2, the control device controls the states of the chiller and other electrical equipment to the inoperable state and issues a concentration alarm signal.

[0059] S2051. When the control device is in the power-on state of the chiller and other electrical equipment, and when d1 < D2 and d2 < D2, the chiller and other electrical equipment can operate safely.

[0060] S2052. When the control device is in the power-on state of the chiller and other electrical equipment, and when D1 ≤ d1 ≤ D2 and d2 ≤ D2, or when D1 ≤ d2 ≤ D2 and d1 ≤ D2, the control device controls the chiller to operate at a reduced load.

[0061] S2053. When the control device is in the power-on state of the chiller and other electrical equipment, and when d1 > D2 or d2 > D2, the control device cuts off the power supply of the chiller and other electrical equipment and activates the mechanical ventilation function.

[0062] In this solution, it is described how to control the power-on startup of the chiller and other electrical equipment according to the relationship between the detected value and the preset value when both the chiller and other electrical equipment are powered off. It can be seen from step S2041 that power-on startup can only be performed when both the concentration value of the first sensor set in the chiller and the concentration value of the second sensor in the machine room environment are less than the first concentration threshold. For example, in this application, with D1 = 150 ppm and D2 = 500 ppm, power-on startup can only be performed when it is detected that both the concentration value of the first sensor and the concentration value of the second sensor are less than 150 ppm.

[0063] If either the first sensor or the second sensor detects a concentration value greater than or equal to the first concentration threshold, the system cannot enter the operating state. For example, with D1 = 150 ppm and D2 = 500 ppm, if either the first sensor concentration value or the second sensor concentration value is greater than or equal to the first concentration threshold of 150 ppm, or both are greater than or equal to the first concentration threshold of 150 ppm, the chiller unit cannot enter the operating state. Further, as in step S2042, if only one sensor detects a concentration value between the warning value and the alarm value, or if both detection values ​​are between the warning value and the alarm value, then the mechanical ventilation function needs to be activated to reduce the refrigerant concentration in the corresponding environment. If the detected concentration value is greater than the alarm value, that is, if either the first sensor concentration value or the second sensor concentration value is greater than the second concentration threshold of 500 ppm, or both are greater than the second concentration threshold of 500 ppm, as in step S2043, then a concentration alarm signal needs to be issued to inform personnel that the current refrigerant concentration in the environment is too high and maintenance and repair are required. By setting up sensors in different environments during the startup phase and considering the appropriate processing method for the current detection concentration in stages, the safety of the startup phase is ensured.

[0064] Furthermore, this technical solution explains how to control the operation of the chiller unit and other electrical equipment based on the relationship between detected values ​​and preset values, assuming both are running. Taking D1 = 150 ppm and D2 = 500 ppm as an example, during operation, the sensors need to monitor the refrigerant concentration in the environment in real time. Both the detection value d1 from the first sensor and the detection value d2 from the second sensor should be less than the first concentration threshold of 150 ppm, i.e., less than the warning value. When one sensor's detection value is between the warning and alarm values, or both detection values ​​are between the warning and alarm values, i.e., within the range of 150 ppm to 500 ppm, as in step S2052, the chiller unit needs to be controlled to operate at reduced load while continuing to monitor concentration changes. This is to avoid impacting the compressor during an emergency shutdown and preventing compressor damage. If the detected value continues to rise above the alarm value of 500 ppm, as in step S2053, then the chiller unit and other electrical equipment need to be powered off, and the mechanical ventilation function needs to be activated. By setting up sensors in different environments and considering the appropriate treatment methods for the current detection concentration at different stages during the operation phase, the safety of the operation phase is ensured.

[0065] Combination Figure 3 As shown, a schematic diagram of another control method for computer room security is presented. Figure 3In practice, considering the actual situation, it is advisable to first determine whether the concentration value in the computer room environment meets the requirements, and then determine whether the concentration value in the unit environment meets the requirements. That is, first determine the detection value d2 of the second sensor, and then determine the detection value d1 of the first sensor. Figure 3 Control methods used for computer room security include:

[0066] S301, the control device determines whether d2 is less than D1.

[0067] S302, The control device controls the power supply to the electrical equipment in the computer room.

[0068] S303, the control device determines whether d1 is less than D1.

[0069] S304, the control device controls the start-up of the chiller unit.

[0070] S305, the control device determines whether d2 is less than D2.

[0071] S306, The control device activates the alarm system to troubleshoot the alarm.

[0072] S307, the control device activates mechanical ventilation to reduce the concentration of combustibles in the computer room.

[0073] S308, the control device activates mechanical ventilation to reduce the concentration of combustibles in the unit.

[0074] In this scheme, the process first proceeds to S301, where the detection value d2 of the second sensor monitoring the computer room environment is checked to see if it is less than the warning value D1. If it is, the process proceeds to S302, where the electrical equipment in the computer room can be powered on. If not, the process proceeds to S305, where d2 needs to be checked to see if it is less than the alarm value D2. If not, it indicates that the concentration of combustibles in the computer room is too high, and the process proceeds to S306, where an alarm check is required; otherwise, the process proceeds to S307, where mechanical ventilation is activated to reduce the concentration of combustibles in the computer room.

[0075] After powering on the electrical equipment in the computer room, the process proceeds to S303, where the detection value d1 of the first sensor monitoring the unit's environment is checked to see if it is less than the warning value D1. If so, the process proceeds to S304, controlling the chiller unit to start. Alternatively, it may be in an operational state, starting upon receiving a user command. Otherwise, the process proceeds to S308, where mechanical ventilation is activated to reduce the concentration of combustibles within the unit, before returning to S303 for further checks. It's important to note that when checking d1, a second check for whether d1 is less than the alarm value D2 is not performed. This is because, in practice, the difference between the detection values ​​of the two concentration sensors is generally not significant. Therefore, if d2 is already less than the warning value D1, the likelihood of d1 being higher than D2 is low. This step is not shown in the diagram, but it can be implemented in practice. By separately detecting the detection value d2 of the second sensor monitoring the computer room environment and the detection value d1 of the first sensor monitoring the unit's environment, the starting of the electrical equipment and the unit are separated, thus better ensuring the safety of the unit's operation.

[0076] Optionally, the control method for computer room security further includes: performing fault detection on the first sensor and the second sensor, and issuing a fault signal to prompt the user to perform maintenance if a fault is detected in the first sensor or the second sensor.

[0077] Combination Figure 4 As shown in the diagram, another control method for data center security provided in this disclosure includes:

[0078] S401, determine if the first or second sensor is faulty. If yes, proceed to S4021; otherwise, proceed to S4022.

[0079] S4021 sends a fault signal to prompt the user to perform maintenance.

[0080] S4022, detects the refrigerant concentration in the chiller unit and the refrigerant concentration in the machine room environment, and obtains the first concentration value d1 and the second concentration value d2.

[0081] S403, the control device controls the power-on start of the chiller unit and other electrical equipment according to d1 and d2 when the chiller unit and other electrical equipment are de-energized, and / or controls the operation of the chiller unit and other electrical equipment according to d1 or d2 when the chiller unit and other electrical equipment are energized.

[0082] This technical solution also includes real-time monitoring of sensor malfunctions. Since the solution relies entirely on sensor readings, the accuracy of the detected concentration values ​​is crucial. If a sensor malfunctions, a fault signal must be sent to alert the user for repair and replacement, thus ensuring the accuracy and reliability of the acquired concentration data.

[0083] Furthermore, regarding the method for controlling the safety of the computer room based on the detected concentration value in step S403, the above-mentioned method can be adopted. Figures 1 to 3 The control methods used for computer room security are shown in Table 1. Combined with… Figures 1 to 3 China has different control strategies for data center security based on different situations.

[0084]

[0085] Table 1

[0086] It should be stated that the critical values ​​mentioned in this application are not strictly limited to a specific situation. That is, taking D1 = 150 ppm and D2 = 500 ppm as an example, if the detection value d1 or d2 of a certain sensor is exactly equal to 150 ppm during the startup phase, it can be considered that the concentration has not exceeded the warning value, thus the equipment can be safely started; or it can be considered that the concentration has exceeded the warning value, thus the equipment cannot operate and mechanical ventilation is required. The specific determination of the critical value is up to the user, but from a safety perspective, if the detection value is equal to the critical value, the concentration should be considered to have reached the warning or alarm stage.

[0087] Combination Figure 5 As shown, this disclosure provides a control device for data center security, including a processor 500 and a memory 501. Optionally, the device may further include a communication interface 502 and a bus 503. The processor 500, communication interface 502, and memory 501 can communicate with each other via the bus 503. The communication interface 502 can be used for information transmission. The processor 500 can call logical instructions in the memory 501 to execute the control method for data center security described in the above embodiment.

[0088] Furthermore, the logic instructions in the aforementioned memory 501 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0089] The memory 501, as a storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 500 executes functional applications and data processing by running the program instructions / modules stored in the memory 501, thereby implementing the control method for computer room security described in the above embodiments.

[0090] The memory 501 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 501 may include high-speed random access memory and may also include non-volatile memory.

[0091] This disclosure provides a storage medium storing computer-executable instructions configured to execute the aforementioned control method for data center security.

[0092] The aforementioned storage media can be either transient computer-readable storage media or non-transitory computer-readable storage media. Non-transitory storage media include various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, and can also be transient storage media.

[0093] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0094] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0095] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A control method for computer room security, wherein a chiller unit and other electrical equipment are installed in the computer room, characterized in that, The chiller is equipped with a first sensor for detecting the refrigerant concentration in the chiller, and a second sensor for detecting the refrigerant concentration in the machine room environment is arranged within a set range around the chiller; the control method includes: Detect the refrigerant concentration in the chiller to obtain the first concentration value d1; Detect the refrigerant concentration in the machine room environment to obtain the second concentration value d2; When the chiller and other electrical equipment are both powered off, control the power-on startup of the chiller and other electrical equipment according to d1 and d2, and / or, when the chiller and other electrical equipment are both powered on, control the operation of the chiller and other electrical equipment according to d1 or d2; wherein, the controlling the operation of the chiller and other electrical equipment according to d1 or d2 when the chiller and other electrical equipment are both powered on includes: when D1≤d1≤D2 and d2≤D2, or, when D1≤d2≤D2 and d1≤D2, control the chiller to operate under load reduction; Determine the first concentration threshold D1 and the second concentration threshold D2 according to the input instruction of the user; wherein, D1 < D2.

2. The method according to claim 1, characterized in that, The controlling the power-on startup of the chiller and other electrical equipment according to d1 and d2 when the chiller and other electrical equipment are both powered off includes: When d1 < D1 and d2 < D1, control the states of the chiller and other electrical equipment to be in an operable state so as to power on and start when receiving a startup instruction; When d1≥D1 or d2≥D1, control the states of the chiller and other electrical equipment to be in a non-operable state, and perform a preset operation according to d1 and d2.

3. The method according to claim 2, characterized in that, Performing a preset operation according to d1 and d2 includes: When D1≤d1≤D2 and d2≤D2, or, when D1≤d2≤D2 and d1≤D2, activate the mechanical ventilation function; When d1 > D2 or d2 > D2, send out a concentration alarm signal.

4. The method according to claim 1, characterized in that, The controlling the operation of the chiller and other electrical equipment according to d1 or d2 when the chiller and other electrical equipment are both powered on further includes: When d1 > D2 or d2 > D2, control the chiller and other electrical equipment to power off and activate the mechanical ventilation function.

5. The method according to any one of claims 1 to 4, characterized in that, It further includes: Perform a fault detection on the first sensor and the second sensor.

6. The method according to claim 5, wherein If it is detected that the first sensor or the second sensor has a fault, send out a fault signal to prompt the user to perform maintenance.

7. A control device for computer room security, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the control method for machine room safety according to any one of claims 1 to 6 when running the program instructions.

8. A computer room, characterized in that, It includes: A chiller and other electrical equipment; A master control device for controlling the operation or stop of the equipment in the machine room; A first sensor, arranged in the chiller and electrically connected to the chiller, for detecting the refrigerant concentration in the chiller; A second sensor, arranged within a set range around the chiller and electrically connected to the master control device, for detecting the refrigerant concentration in the machine room environment; An alarm system for sending out alarm information; A ventilation system for providing mechanical ventilation to the computer room; The control device for computer room security as described in claim 7.

9. A storage medium storing program instructions, characterized in that, When the program instructions are executed, they perform the control method for computer room security as described in any one of claims 1 to 6.

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