A rail transit machine room power environment monitoring system

Abstract

The present invention relates to the technical field of power environment monitoring in a machine room, and in particular to a power environment monitoring system for a rail transit machine room, including a monitoring module, a patrol module, a control module, and an early warning module. When the control module determines that the stability of the power environment monitoring does not meet the requirements according to the proportion of the number of false alarms, the control module determines the cause of unstable power supply according to the input voltage of the distribution cabinet, or adjusts the extension and retraction speed of the patrol robot camera based on the vibration intensity of the patrol robot during its driving process. When the aging degree of the machine room cable does not meet the requirements, the control module adjusts the speed of the ventilation fan according to the number of monitoring types delayed by the integrated monitoring terminal inside the distribution cabinet. When the connection of the load is unstable, the control module adjusts the signal acquisition frequency of the integrated monitoring terminal according to the average delay time of the control process of the control cabinet. When the control module issues a fault early warning instruction according to the fault analysis result, the early warning module issues an early warning for the location and content of the fault.

Description

Technical Field

[0001] The present invention relates to the technical field of power environment monitoring of a machine room, and in particular to a power environment monitoring system for a rail transit machine room. Background Art

[0002] The computer room power environment monitoring system can monitor the environmental parameters (such as temperature, humidity, smoke, etc.) and equipment status (such as UPS power supply, air conditioning, access control, etc.) in the computer room in real time by integrating various sensors, data acquisition modules, embedded monitoring hosts and other technologies, and transmit the data to the monitoring center through the network. The monitoring center can use professional data processing and analysis tools to process, classify, store and mine the data to provide more accurate and comprehensive computer room operation information. At the same time, the system can also automatically trigger the alarm mechanism when abnormal conditions are found according to the preset alarm rules and linkage control strategies, and adjust the operating status of the computer room by executing corresponding control operations to ensure the safe and stable operation of the equipment in the computer room.

[0003] Chinese Patent Publication No.: CN103926891A discloses a mobile communication room base station power environment equipment monitoring system and method, including a storage module, an operation status data acquisition module, a display interface providing module, a power environment resource information management module, a power environment resource topology presentation module, a power environment equipment early warning analysis module, a power environment equipment alarm analysis module, and a display device. The mobile communication room base station power environment equipment monitoring system obtains the operation status data of the room and base station power environment equipment collected by the room and base station power environment monitoring system, and after comprehensive analysis and calculation based on the acquired operation status data and the pre-stored static resource information of the room and base station power environment equipment, provides accurate maintenance management information, early warning and alarm information to the power environment professional maintenance personnel. The present invention also provides a mobile communication room base station power environment equipment monitoring method.

[0004] It can be seen that the mobile communication room base station power environment equipment monitoring system and method have the following problems: the room base station power environment equipment monitoring system provides accurate maintenance management information, early warning and alarm information to the power environment professional maintenance personnel based on the normal situation of the monitoring system, but does not monitor whether the monitoring system itself is normal, and cannot guarantee whether the monitoring system can operate normally, and thus cannot determine whether the obtained monitoring data and early warning information are accurate. Summary of the invention

[0005] To this end, the present invention provides a rail transit machine room power environment monitoring system to overcome the problem in the prior art that there is no monitoring of whether the monitoring system itself is normal, and whether the monitoring system can operate normally cannot be guaranteed, and thus whether the obtained monitoring data and warning information are accurate cannot be determined.

[0006] To achieve the above object, the present invention provides a rail transit machine room power environment monitoring system, comprising:

[0007] A monitoring module is arranged inside the rail transit machine room to obtain the internal environmental parameters and power parameters of the rail transit machine room;

[0008] An inspection module, used for mobile monitoring of the internal environment of the rail transit machine room, including a number of inspection robots for performing inspections according to a set inspection cycle;

[0009] A control module, which is connected to the monitoring module and the inspection module respectively, is used to determine whether to issue a warning alarm according to the internal environmental parameters, and, when it is determined that the stability of the power environment monitoring does not meet the requirements according to the proportion of the number of false alarms, determine the cause of the unstable power supply according to the input voltage of the distribution cabinet, or adjust the extension and retraction speed of the inspection robot camera based on the vibration intensity during the driving process of the inspection robot,

[0010] Also, when the cause is that the aging degree of the cables in the computer room does not meet the requirements, the speed of the ventilation fan is adjusted according to the number of monitoring types that are delayed by the integrated monitoring terminal inside the power distribution cabinet; when the cause is that the connection of the load is unstable, the signal acquisition frequency of the integrated monitoring terminal is adjusted according to the average delay time of the control process of the control cabinet;

[0011] The early warning module is connected to the control module and is used to issue an early warning alarm when the control module issues a control instruction for the early warning alarm.

[0012] Furthermore, the monitoring module includes: an image acquisition component, a temperature sensor, a humidity sensor, a smoke sensor and an integrated monitoring terminal, wherein the integrated monitoring terminal is located inside each power distribution cabinet.

[0013] Furthermore, the control module determines whether the stability of the power environment monitoring meets the requirements according to the proportion of the number of false alarms, wherein:

[0014] If the false alarm quantity ratio is less than or equal to a preset first quantity ratio, the control module determines that the stability of the power environment monitoring meets the requirements;

[0015] If the proportion of the number of false alarms is greater than the preset first proportion and less than or equal to the preset second proportion, it is determined that the stability of the power environment monitoring does not meet the requirements, the control module preliminarily determines that the inspection process does not meet the requirements, and makes a secondary determination on whether the inspection process meets the requirements based on the vibration intensity of the inspection robot during the driving process;

[0016] If the proportion of the number of false alarms is greater than the proportion of the preset second number, it is determined that the stability of the power environment monitoring does not meet the requirements, and a preliminary determination is made that the stability of the power supply in the computer room does not meet the requirements. A secondary determination is made based on the fluctuation amplitude of the input voltage of the distribution cabinet to determine whether the stability of the power supply in the computer room meets the requirements and the reasons why the power distribution does not meet the requirements are determined.

[0017] Furthermore, the calculation formula for the percentage of false alarms is:

[0018]

[0019] Among them, P is the proportion of false alarms, S 1 is the number of false alarms, and S is the total number of alarms.

[0020] Furthermore, the inspection module also includes a vibration sensor disposed inside the inspection robot for detecting the vibration intensity of the inspection robot, and the control module is connected to the vibration sensor for performing a secondary determination on whether the inspection process of the inspection robot meets the requirements according to the vibration intensity during the driving process of the inspection robot, wherein:

[0021] If the vibration intensity is less than or equal to the preset vibration intensity, the inspection process is judged to meet the requirements for the second time;

[0022] If the vibration intensity is greater than the preset vibration intensity, it is determined that the inspection process does not meet the requirements for the second time, and the telescopic speed of the camera is reduced.

[0023] Furthermore, the control module secondarily determines whether the power supply stability of the computer room meets the requirements based on the fluctuation amplitude of the input voltage of the power distribution cabinet, and determines the reasons why the power distribution does not meet the requirements, including:

[0024] If the fluctuation range of the input voltage of the power distribution cabinet is greater than the preset fluctuation range, the control module determines for the second time that the power supply stability of the computer room does not meet the requirements, wherein:

[0025] If the input voltage of the power distribution cabinet is greater than the preset first input voltage and less than or equal to the preset second input voltage, the control module determines that the reason why the power supply stability does not meet the requirements is that the cables in the computer room are aging and the degree of aging does not meet the requirements, and determines whether the degree of aging of the cables in the computer room meets the requirements based on the number of monitoring types delayed by the integrated monitoring terminal of the power distribution cabinet;

[0026] If the input voltage of the distribution cabinet is greater than the preset second input voltage, the control module determines that the reason why the power supply stability does not meet the requirements is that the structural connection stability of the load does not meet the requirements, and makes a secondary determination whether the structural connection stability of the load meets the requirements based on the average delay time of the control process of the control cabinet.

[0027] Furthermore, the control module reduces the rotation speed of the ventilation motor inside the machine room according to the number of monitoring types in which the integrated monitoring terminal of the power distribution cabinet is delayed, including:

[0028] If the number of monitoring types delayed by the integrated monitoring terminal is less than or equal to a preset number, a second determination is made as to whether the aging degree of the cables in the equipment room meets the requirements;

[0029] If the number of monitoring types delayed by the integrated monitoring terminal is greater than a preset number, it is determined for the second time that the aging degree of the cables in the computer room does not meet the requirements, and the rotation speed of the ventilation fan is reduced.

[0030] Furthermore, the control module performs a secondary determination on the connection stability of the load according to the average delay time of the control process of the control cabinet, including:

[0031] If the average delay time is less than or equal to the preset delay time, it is determined that the connection stability of the load meets the requirements;

[0032] If the average delay time is longer than the preset delay time, it is determined that the connection stability of the load does not meet the requirements, and the signal acquisition frequency of the integrated monitoring terminal in the control cabinet is increased;

[0033] Among them, the signal collection frequency of the integrated monitoring terminal in the enlarged control cabinet is determined by the difference between the average delay time and the preset delay time.

[0034] Furthermore, the calculation formula for the average delay time of the control process of the control cabinet is:

[0035]

[0036] Among them, t 0 is the average delay time of the control process of the control cabinet, n is the total number of control processes delayed in the control cabinet within a unit cycle, and t i is the total delay time of each control process delayed in the i-th control cabinet within a unit period, i=1,2,3...n.

[0037] Furthermore, the reduced rotation speed of the ventilation fan is determined by the difference between the number of monitoring types for which the integrated monitoring terminal is delayed and a preset number.

[0038] Compared with the prior art, the beneficial effects of the present invention are: by calculating the proportion of false alarms, it is determined whether the stability of the power environment monitoring meets the requirements. For the situation that the stability of the power environment monitoring does not meet the requirements, a preset first number proportion and a preset second number proportion are set. According to the comparison result of the false alarm number proportion and the preset number proportion, it is preliminarily determined that the inspection process does not meet the requirements, or the power supply is unstable. A secondary judgment is made on the stability of the power environment monitoring based on the vibration intensity of the inspection robot during the driving process, or the cause of the unstable power supply is determined and a secondary judgment is made based on the number of monitoring types delayed by the integrated monitoring terminal or the average delay time of the control process of the control cabinet. At the same time, adjustments are made or warnings are issued for situations that do not meet the requirements, so as to monitor the monitoring system itself, determine whether the monitoring system is operating normally, and thus determine whether the obtained monitoring data and warning information are accurate.

[0039] Furthermore, the monitoring system of the present invention monitors the overall environment in the computer room and the environment in the distribution cabinet by setting up image acquisition components, temperature sensors, humidity sensors, smoke sensors and integrated monitoring terminals, and collects equipment operating status information in the computer room in real time, thereby monitoring the monitoring system itself while monitoring the overall environment of the computer room to determine whether the monitoring system is operating normally, and thus determine whether the obtained monitoring data and warning information are accurate.

[0040] Furthermore, the present invention determines the stability of the power environment monitoring based on a comparison of the proportion of the false alarm number with the proportion of the first preset number and the proportion of the second preset number. In case that the stability of the power environment monitoring does not meet the requirements, it is preliminarily determined that the inspection process does not meet the requirements or that the power supply is unstable. Thus, while monitoring the overall environment of the computer room, the monitoring system itself is monitored to determine whether the operation of the monitoring system is stable, thereby determining whether the obtained monitoring data and warning information are accurate.

[0041] Furthermore, the present invention calculates the proportion of false alarms based on historical alarm information, which can improve the accuracy of determining the stability of the power environment monitoring, thereby improving the accuracy of monitoring the monitoring system itself, and further determining whether the obtained monitoring data and warning information are accurate.

[0042] Furthermore, the present invention arranges a vibration intensity monitor in the inspection robot to monitor the vibration intensity of the inspection robot during its driving process, and makes a secondary judgment on whether the inspection process of the inspection robot meets the requirements based on the vibration intensity. If the inspection process does not meet the requirements, the inspection robot reduces the retraction speed of the camera, thereby ensuring the operating stability of the power environment monitoring system of the computer room and ensuring accurate monitoring data and early warning information.

[0043] Furthermore, the present invention secondary determines whether the power supply stability of the computer room meets the requirements through the fluctuation amplitude of the input voltage of the distribution cabinet, and determines the reason why the power distribution does not meet the requirements, and performs secondary judgment on the situation where the power distribution does not meet the requirements due to aging of the computer room cables or unstable load connection, thereby determining whether the operation of the power environment monitoring system of the computer room is stable and whether the obtained monitoring data and early warning information are accurate.

[0044] Furthermore, the present invention secondary determines whether the aging degree of the cables in the computer room meets the requirements based on the number of delayed monitoring types of the integrated monitoring terminal of the distribution cabinet, and reduces the rotation speed of the ventilation fan when the aging degree of the cables in the computer room does not meet the requirements, thereby ensuring the operating stability of the power environment monitoring system of the computer room and ensuring accurate monitoring data and early warning information.

[0045] Furthermore, the control module of the present invention performs a secondary determination on whether the connection stability of the load meets the requirements based on the average delay time of the control process of the control cabinet, and increases the signal acquisition frequency of the integrated monitoring terminal in the control cabinet if the connection stability of the load does not meet the requirements, thereby ensuring the operating stability of the power environment monitoring system of the computer room and ensuring accurate monitoring data and early warning information.

[0046] Furthermore, the present invention calculates the average delay duration based on the delay duration of the control process in the control cabinet, thereby improving the data confidence level, thereby determining whether the operation of the computer room power environment monitoring system is stable and whether the obtained monitoring data and warning information are accurate.

[0047] Furthermore, the reduced rotation speed of the ventilation fan of the present invention is determined by the difference between the number of delayed monitoring types of the integrated monitoring terminal and a preset number, thereby ensuring the operational stability of the computer room power environment monitoring system and further improving the stability of the computer room power environment monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a structural block diagram of a rail transit machine room power environment monitoring system according to an embodiment of the present invention;

[0049] Figure 2 A flow chart of an embodiment of the present invention for determining whether the stability of power environment monitoring meets the requirements;

[0050] Figure 3 This is a flow chart of a secondary determination of the inspection process of the inspection robot based on the vibration intensity of the inspection robot during its driving process according to an embodiment of the present invention;

[0051] Figure 4The flowchart of an embodiment of the present invention is to determine the reason why the power supply stability of a computer room does not meet the requirements based on the fluctuation amplitude of the input voltage for the second time. DETAILED DESCRIPTION

[0052] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0053] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0054] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0055] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] See also Figure 1 As shown, it is a structural block diagram of a rail transit machine room power environment monitoring system according to an embodiment of the present invention. The rail transit machine room power environment monitoring system according to the present invention includes:

[0057] A monitoring module is arranged inside the rail transit machine room to obtain the internal environmental parameters and power parameters of the rail transit machine room;

[0058] An inspection module, used for mobile monitoring of the internal environment of the rail transit machine room, including a number of inspection robots for performing inspections according to a set inspection cycle;

[0059] A control module, which is connected to the monitoring module and the inspection module respectively, is used to determine whether to issue a warning alarm according to the internal environmental parameters, and, when it is determined that the stability of the power environment monitoring does not meet the requirements according to the proportion of the number of false alarms, determine the cause of the unstable power supply according to the input voltage of the distribution cabinet, or adjust the extension and retraction speed of the inspection robot camera based on the vibration intensity during the driving process of the inspection robot,

[0060] Also, when the cause is that the aging degree of the cables in the computer room does not meet the requirements, the speed of the ventilation fan is adjusted according to the number of monitoring types delayed by the integrated monitoring terminal inside the power distribution cabinet; when the cause is unstable load connection, the signal acquisition frequency of the integrated monitoring terminal is adjusted according to the average delay time of the control process of the control cabinet;

[0061] The early warning module is connected to the control module and is used to issue an early warning alarm when the control module issues a control instruction for the early warning alarm.

[0062] Specifically, a preferred implementation of the process of issuing a warning alarm is that when the temperature in the machine room exceeds a warning value, a warning alarm is issued.

[0063] Specifically, the inspection cycle of the inspection robot is 1h;

[0064] Specifically, a small fire-fighting device is installed inside the inspection robot to extinguish fires below level 21B.

[0065] In an embodiment, whether the stability of the power environment monitoring meets the requirements is determined by calculating the ratio of the number of false alarms. For the situation that the stability of the power environment monitoring does not meet the requirements, a preset first ratio and a preset second ratio are set. According to the comparison result of the false alarm ratio and the preset ratio, it is preliminarily determined that the inspection process does not meet the requirements, or the power supply is unstable. A secondary judgment is made on the stability of the power environment monitoring based on the vibration intensity during the driving process of the inspection robot, or the cause of the unstable power supply is determined and a secondary judgment is made based on the number of monitoring types delayed by the integrated monitoring terminal or the average delay time of the control process of the control cabinet. At the same time, adjustments are made or warnings are issued for situations that do not meet the requirements, so as to monitor the monitoring system itself and determine whether the monitoring system is operating normally, thereby determining whether the obtained monitoring data and warning information are accurate.

[0066] Specifically, the monitoring module described in the embodiment of the present invention includes: an image acquisition component, a temperature sensor, a humidity sensor, a smoke sensor and an integrated monitoring terminal, wherein the integrated monitoring terminal is located inside each power distribution cabinet.

[0067] Specifically, the relative position, type, rated operating parameters and size of the amplitude detector of the image acquisition component, temperature sensor, humidity sensor, smoke sensor and integrated monitoring terminal in the monitoring module are not limited. Technical personnel in this field only need to ensure that the settings of each detector can fully monitor the environment in the computer room.

[0068] Specifically, the image acquisition component can be a camera, a camcorder, a still camera, or other devices with a photo-taking function.

[0069] In an embodiment, the monitoring system of the present invention monitors the overall environment in the computer room and the environment in the distribution cabinet by setting up image acquisition components, temperature sensors, humidity sensors, smoke sensors and integrated monitoring terminals, and collects equipment operating status information in the computer room in real time, thereby monitoring the monitoring system itself while monitoring the overall environment of the computer room to determine whether the monitoring system is operating normally, and thus determine whether the obtained monitoring data and warning information are accurate.

[0070] See also Figure 2 As shown, it is a flow chart for implementing the present invention to determine whether the stability of power environment monitoring meets the requirements.

[0071] Specifically, the control module of the embodiment of the present invention determines whether the stability of the power environment monitoring meets the requirements according to the proportion of the number of false alarms, wherein:

[0072] If the false alarm quantity ratio is less than or equal to a preset first quantity ratio, the control module determines that the stability of the power environment monitoring meets the requirements;

[0073] If the proportion of the number of false alarms is greater than the preset first proportion and less than or equal to the preset second proportion, it is determined that the stability of the power environment monitoring does not meet the requirements, the control module preliminarily determines that the inspection process does not meet the requirements, and makes a secondary determination on whether the inspection process meets the requirements based on the vibration intensity of the inspection robot during the driving process;

[0074] If the proportion of the number of false alarms is greater than the proportion of the preset second number, it is determined that the stability of the power environment monitoring does not meet the requirements, and a preliminary determination is made that the stability of the power supply in the computer room does not meet the requirements. A secondary determination is made based on the fluctuation amplitude of the input voltage of the distribution cabinet to determine whether the stability of the power supply in the computer room meets the requirements and the reasons why the power distribution does not meet the requirements are determined.

[0075] Specifically, in the actual computer room power environment monitoring process, the general optional range of the preset first quantity ratio is [0.1%, 0.3%], and the general optional range of the preset second quantity ratio is [0.4%, 0.6%]; the preferred embodiment of the preset first quantity ratio of the present invention is 0.2%, and the preferred embodiment of the preset second quantity ratio is 0.5%.

[0076] In an embodiment, the present invention determines the stability of the power environment monitoring based on a comparison of the proportion of the number of false alarms with the proportion of the first preset number and the proportion of the second preset number. If the stability of the power environment monitoring does not meet the requirements, it is preliminarily determined that the inspection process does not meet the requirements or that the power supply is unstable. Thus, while monitoring the overall environment of the computer room, the monitoring system itself is monitored to determine whether the operation of the monitoring system is stable, thereby determining whether the obtained monitoring data and warning information are accurate.

[0077] Specifically, the calculation formula for the percentage of false alarms in the embodiment of the present invention is:

[0078]

[0079] Among them, P is the proportion of false alarms, S 1 is the number of false alarms, and S is the total number of alarms.

[0080] Specifically, a false alarm means an alarm that is issued but the alarm condition is not met after verification.

[0081] In an embodiment, the present invention calculates the proportion of false alarms based on historical alarm information, which can improve the stability of determining the power environment monitoring, thereby improving the accuracy of monitoring the monitoring system itself, and further determining whether the obtained monitoring data and warning information are accurate.

[0082] See also Figure 3 As shown, it is a flow chart of a secondary determination of the inspection process of the inspection robot based on the vibration intensity of the inspection robot during its driving process according to an embodiment of the present invention.

[0083] Specifically, the inspection module of the present invention further includes a vibration sensor disposed inside the inspection robot for detecting the vibration intensity of the inspection robot. The control module is connected to the vibration sensor for performing a secondary determination on whether the inspection process of the inspection robot meets the requirements according to the vibration intensity during the driving process of the inspection robot.

[0084] If the vibration intensity is less than or equal to the preset vibration intensity, the inspection process is judged to meet the requirements for the second time;

[0085] If the vibration intensity is greater than the preset vibration intensity, it is determined that the inspection process does not meet the requirements for the second time, and the telescopic speed of the camera is reduced.

[0086] Specifically, in the actual inspection process of the inspection robot, the general optional range of the preset vibration intensity is [10mm / s, 20mm / s]; the preferred embodiment of the preset vibration intensity of the present invention is 15mm / s.

[0087] Specifically, during the actual inspection process of the inspection robot, the reduced telescopic speed of the camera is determined by the difference between the vibration intensity and the preset vibration intensity. Preferably, for every 1 mm / s that the vibration intensity exceeds the preset vibration intensity, the telescopic speed of the camera is reduced by 5% compared to the current telescopic speed.

[0088] Specifically, the telescopic speed of the camera refers to the camera on the inspection robot. The adjustment of the telescopic speed of the camera is completed through the telescopic component set on the inspection robot. The telescopic component is an electric telescopic rod, one end of which is connected to the camera and the other end is fixed on the main platform of the inspection robot.

[0089] In an embodiment, the present invention monitors the vibration intensity of the inspection robot during its driving process by arranging a vibration intensity monitor in the inspection robot, and makes a secondary judgment on whether the inspection process of the inspection robot meets the requirements based on the vibration intensity. If the inspection process does not meet the requirements, the inspection robot reduces the retraction speed of the camera, thereby ensuring the operating stability of the power environment monitoring system of the computer room and ensuring accurate monitoring data and early warning information.

[0090] See also Figure 4 As shown, it is a flow chart of an embodiment of the present invention for secondary determining the reason why the power supply stability of the computer room does not meet the requirements according to the fluctuation amplitude of the input voltage.

[0091] Specifically, the control module of the embodiment of the present invention secondarily determines whether the power supply stability of the computer room meets the requirements based on the fluctuation amplitude of the input voltage of the power distribution cabinet, and determines the reasons why the power distribution does not meet the requirements, including:

[0092] If the fluctuation range of the input voltage of the power distribution cabinet is greater than the preset fluctuation range, the control module determines for the second time that the power supply stability of the computer room does not meet the requirements, wherein:

[0093] If the input voltage of the power distribution cabinet is greater than the preset first input voltage and less than or equal to the preset second input voltage, the control module determines that the reason why the power supply stability does not meet the requirements is that the cables in the computer room are aging and the degree of aging does not meet the requirements, and determines whether the degree of aging of the cables in the computer room meets the requirements based on the number of monitoring types delayed by the integrated monitoring terminal of the power distribution cabinet;

[0094] If the input voltage of the distribution cabinet is greater than the preset second input voltage, the control module determines that the reason why the power supply stability does not meet the requirements is that the structural connection stability of the load does not meet the requirements, and makes a secondary determination whether the structural connection stability of the load meets the requirements based on the average delay time of the control process of the control cabinet.

[0095] Specifically, in the actual computer room power environment monitoring process, the general optional range of the preset fluctuation amplitude is [10V, 50V]; the preferred preset fluctuation amplitude of this embodiment is 40V.

[0096] Specifically, in the actual computer room power environment monitoring process, the preferred embodiment of the preset first input voltage is 9.9 kV, and the preferred embodiment of the preset second input voltage is 10 kV.

[0097] Specifically, the preset second input voltage is the rated input voltage of the power distribution cabinet, which is generally divided into 10 kV or 35 kV.

[0098] In an embodiment, the fluctuation amplitude of the input voltage of the distribution cabinet is used to secondary determine whether the power supply stability of the computer room meets the requirements, and the reason why the power distribution does not meet the requirements is determined. A secondary judgment is made for the situation where the power distribution does not meet the requirements due to aging of the computer room cables or unstable load connection, so as to determine whether the operation of the power environment monitoring system of the computer room is stable and whether the obtained monitoring data and early warning information are accurate.

[0099] Specifically, the control module of the embodiment of the present invention reduces the rotation speed of the ventilation motor inside the machine room according to the number of monitoring types in which the integrated monitoring terminal of the power distribution cabinet has delays, including:

[0100] If the number of monitoring types delayed by the integrated monitoring terminal is less than or equal to a preset number, a second determination is made as to whether the aging degree of the cables in the equipment room meets the requirements;

[0101] If the number of monitoring types delayed by the integrated monitoring terminal is greater than a preset number, it is determined for the second time that the aging degree of the cables in the computer room does not meet the requirements, and the rotation speed of the ventilation fan is reduced.

[0102] Specifically, the number of monitoring types in which delays occur in the integrated monitoring terminal means the number of types of monitoring parameters in which monitoring delays occur among several monitoring parameter types of the integrated monitoring terminal.

[0103] Specifically, the types of monitoring of the integrated monitoring terminal include: the internal temperature of the distribution cabinet, the internal humidity of the distribution cabinet, and the actual operating frequency of the power grid connected to the distribution cabinet.

[0104] Specifically, the total number of monitoring categories of the integrated monitoring terminal is 10, and the preferred embodiment of the preset number is 4.

[0105] Specifically, the reduction in the speed of the ventilation fan is determined by the difference between the number of monitoring types that are delayed and a preset number. Preferably, the speed of the ventilation fan is reduced by 50 rpm for each time the number of monitoring types that are delayed exceeds the preset number.

[0106] In an embodiment, the present invention secondary determines whether the aging degree of the cables in the computer room meets the requirements based on the number of delayed monitoring types of the integrated monitoring terminal of the distribution cabinet, and reduces the rotation speed of the ventilation fan when the aging degree of the cables in the computer room does not meet the requirements, thereby ensuring the operating stability of the power environment monitoring system of the computer room and ensuring accurate monitoring data and early warning information.

[0107] Specifically, the control module of the embodiment of the present invention performs a secondary determination on the connection stability of the load according to the average delay time of the control process of the control cabinet, including:

[0108] If the average delay time is less than or equal to the preset delay time, it is determined that the connection stability of the load meets the requirements;

[0109] If the average delay time is longer than the preset delay time, it is determined that the connection stability of the load does not meet the requirements, and the signal acquisition frequency of the integrated monitoring terminal in the control cabinet is increased;

[0110] Among them, the signal collection frequency of the integrated monitoring terminal in the enlarged control cabinet is determined by the difference between the average delay time and the preset delay time.

[0111] Specifically, in the actual computer room power environment monitoring process, the preset delay time length generally has an optional range of [0.01s, 0.3s]; the preferred embodiment of the preset delay time length of the present invention is 0.1s.

[0112] Specifically, during the actual computer room power environment monitoring process, when the difference between the average delay time and the preset extension time is greater than 0.3s, the signal acquisition frequency is increased by 20% on the basis of the original frequency; when the difference between the average delay time and the preset extension time is less than or equal to 0.3s, the signal acquisition frequency is increased by 10% on the basis of the original frequency.

[0113] In an embodiment, the control module described in the embodiment of the present invention performs a secondary determination on whether the connection stability of the load meets the requirements based on the average delay time of the control process of the control cabinet, and increases the signal acquisition frequency of the integrated monitoring terminal in the control cabinet if the connection stability of the load does not meet the requirements, thereby ensuring the operating stability of the power environment monitoring system of the computer room and ensuring accurate monitoring data and early warning information.

[0114] Specifically, the calculation formula for the average delay duration of the control process of the control cabinet according to the embodiment of the present invention is:

[0115]

[0116] Among them, t 0is the average delay time of the control process of the control cabinet, n is the total number of control processes delayed in the control cabinet within a unit cycle, and t i is the total delay time of each control process delayed in the i-th control cabinet within a unit period, i=1,2,3...n.

[0117] In an embodiment, the present invention calculates the average delay duration based on the delay duration of the control process in the control cabinet, improves the data confidence level, and thereby determines whether the operation of the computer room power environment monitoring system is stable and whether the obtained monitoring data and warning information are accurate.

[0118] Specifically, the reduced rotation speed of the ventilation fan in the embodiment of the present invention is determined by the difference between the number of monitoring types delayed by the integrated monitoring terminal and a preset number.

[0119] Specifically, during the actual power environment monitoring process of the computer room, when the difference between the number of monitoring types delayed by the integrated monitoring terminal and the preset number is less than or equal to 20% of the preset number, the speed of the ventilation fan is reduced to 90% of the original speed; when the difference between the number of monitoring types delayed by the integrated monitoring terminal and the preset number is greater than 20% of the preset number, the speed of the ventilation fan is reduced to 80% of the original speed.

[0120] In an embodiment, the speed of the ventilation fan after reduction in the embodiment of the present invention is determined by the difference between the number of delayed monitoring types of the integrated monitoring terminal and a preset number, thereby ensuring the operating stability of the computer room power environment monitoring system and further improving the stability of the computer room power environment monitoring.

[0121] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A rail transit machine room power environment monitoring system, characterized in that: include: A monitoring module is arranged inside the rail transit machine room to obtain the internal environmental parameters and power parameters of the rail transit machine room; An inspection module, used for mobile monitoring of the internal environment of the rail transit machine room, including a number of inspection robots for performing inspections according to a set inspection cycle; A control module, which is connected to the monitoring module and the inspection module respectively, is used to determine whether to issue a warning alarm according to the internal environmental parameters, and, when it is determined that the stability of the power environment monitoring does not meet the requirements according to the proportion of the number of false alarms, determine the cause of the unstable power supply according to the input voltage of the distribution cabinet, or adjust the extension and retraction speed of the inspection robot camera based on the vibration intensity during the driving process of the inspection robot, Also, when the cause is that the aging degree of the cables in the computer room does not meet the requirements, the speed of the ventilation fan is adjusted according to the number of monitoring types that are delayed by the integrated monitoring terminal inside the power distribution cabinet; when the cause is that the connection of the load is unstable, the signal acquisition frequency of the integrated monitoring terminal is adjusted according to the average delay time of the control process of the control cabinet; An early warning module, which is connected to the control module and is used to issue an early warning alarm when the control module issues a control instruction for the early warning alarm; The monitoring module includes: an image acquisition component, a temperature sensor, a humidity sensor, a smoke sensor and an integrated monitoring terminal, wherein the integrated monitoring terminal is located inside the power distribution cabinet; The control module determines whether the stability of the power environment monitoring meets the requirements according to the proportion of false alarms, wherein: If the false alarm quantity ratio is less than or equal to a preset first quantity ratio, the control module determines that the stability of the power environment monitoring meets the requirements; If the proportion of the number of false alarms is greater than the preset first proportion and less than or equal to the preset second proportion, it is determined that the stability of the power environment monitoring does not meet the requirements, the control module preliminarily determines that the inspection process does not meet the requirements, and makes a secondary determination on whether the inspection process meets the requirements based on the vibration intensity of the inspection robot during the driving process; If the proportion of the number of false alarms is greater than the preset second proportion, it is determined that the stability of the power environment monitoring does not meet the requirements, and it is preliminarily determined that the stability of the power supply of the computer room does not meet the requirements, and a secondary determination is made based on the fluctuation amplitude of the input voltage of the power distribution cabinet whether the stability of the power supply of the computer room meets the requirements and the reason why the power distribution does not meet the requirements is determined; The calculation formula for the percentage of false alarms is: Among them, P is the percentage of false alarms, S1 is the number of false alarms, and S is the total number of alarms; The inspection module also includes a vibration sensor disposed inside the inspection robot for detecting the vibration intensity of the inspection robot. The control module is connected to the vibration sensor to perform a secondary determination on whether the inspection process of the inspection robot meets the requirements according to the vibration intensity during the driving process of the inspection robot. If the vibration intensity is less than or equal to the preset vibration intensity, the inspection process is judged to meet the requirements for the second time; If the vibration intensity is greater than the preset vibration intensity, it is determined that the inspection process does not meet the requirements and the telescopic speed of the camera is reduced; The control module determines whether the power supply stability of the computer room meets the requirements based on the fluctuation amplitude of the input voltage of the power distribution cabinet, and determines the reasons why the power distribution does not meet the requirements, including: If the fluctuation range of the input voltage of the power distribution cabinet is greater than the preset fluctuation range, the control module determines for the second time that the power supply stability of the computer room does not meet the requirements, wherein: If the input voltage of the power distribution cabinet is greater than the preset first input voltage and less than or equal to the preset second input voltage, the control module determines that the reason why the power supply stability does not meet the requirements is that the cables in the computer room are aging and the degree of aging does not meet the requirements, and determines whether the degree of aging of the cables in the computer room meets the requirements based on the number of monitoring types delayed by the integrated monitoring terminal of the power distribution cabinet; If the input voltage of the power distribution cabinet is greater than the preset second input voltage, the control module determines that the reason why the power supply stability does not meet the requirements is that the structural connection stability of the load does not meet the requirements, and secondarily determines whether the structural connection stability of the load meets the requirements based on the average delay time of the control process of the control cabinet; The control module reduces the rotation speed of the ventilation motor inside the machine room according to the number of monitoring types in which the integrated monitoring terminal of the power distribution cabinet is delayed, including: If the number of monitoring types delayed by the integrated monitoring terminal is less than or equal to a preset number, a second determination is made as to whether the aging degree of the cables in the equipment room meets the requirements; If the number of monitoring types delayed by the integrated monitoring terminal is greater than a preset number, it is determined for the second time that the aging degree of the cables in the computer room does not meet the requirements, and the rotation speed of the ventilation fan is reduced.

2. The rail transit machine room power environment monitoring system according to claim 1 is characterized in that: The control module performs a secondary determination on the connection stability of the load according to the average delay time of the control process of the control cabinet, including: If the average delay time is less than or equal to the preset delay time, it is determined that the connection stability of the load meets the requirements; If the average delay time is longer than the preset delay time, it is determined that the connection stability of the load does not meet the requirements, and the signal acquisition frequency of the integrated monitoring terminal in the control cabinet is increased; Among them, the signal collection frequency of the integrated monitoring terminal in the enlarged control cabinet is determined by the difference between the average delay time and the preset delay time.

3. The rail transit machine room power environment monitoring system according to claim 2 is characterized in that: The calculation formula for the average delay time of the control process of the control cabinet is: Among them, t0 is the average delay time of the control process of the control cabinet, n is the total number of control processes delayed in the control cabinet within a unit cycle, and t i is the total delay time of each control process delayed in the i-th control cabinet within a unit period, i=1,2,3...n.

4. The rail transit machine room power environment monitoring system according to claim 3 is characterized in that: The reduced rotation speed of the ventilation fan is determined by the difference between the number of monitoring types for which the integrated monitoring terminal is delayed and a preset number.

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