Monitoring threshold adjusting module and monitoring device comprising same

Abstract

The utility model relates to a monitoring threshold adjusting module and a monitoring device comprising the same, which are used for automatically adjusting the threshold of a monitoring module for monitoring the operating parameters of operating equipment, and the monitoring module comprises a first input interface for receiving the operating parameters, a second input interface and a first output interface for outputting the operating parameters, the adjustment module includes: a first selector including a first input terminal connected to a first output interface, a second input terminal, a selection line input terminal, and an output terminal connected to the second input terminal; an arithmetic logic unit including a first input terminal connected to an output terminal of the first selector, a second input terminal, and an output terminal; and the second selector comprises a first input terminal, a second input terminal connected to the output terminal of the arithmetic logic unit, a selection line input terminal and an output terminal connected to the second input interface, so that the technical effect of automatically adjusting the monitoring threshold value of the operation parameter according to different stable operation states of the equipment is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to a monitoring threshold adjustment module and a monitoring device comprising the same, and more particularly, to a monitoring threshold adjustment module capable of automatically adjusting a monitoring threshold of a monitoring module to accurately monitor an operating parameter of a device in different stable operating states, and a monitoring device comprising the same. BACKGROUND

[0002] During the operation of a device in a factory, an operator usually needs to monitor the key operating parameters (including but not limited to analog quantities such as temperature, pressure, flow, liquid level, rotation speed and vibration of the device) of the device in real time to prevent abnormal operation of the device from causing an operating accident. In order to achieve this purpose, a threshold value can be set for a specific operating parameter in a monitoring device so as to trigger an alarm when the parameter exceeds the normal range.

[0003] During the operation of a device, the device can enter a stable operating state for a period of time. In this state, the operating parameters of the device do not fluctuate greatly. However, under different times and different operating conditions, the amplitudes of the operating parameters of the device in the stable operating state will be different. The operator usually needs to manually adjust the threshold value of the parameter according to different stable operating states to ensure that the monitoring device can accurately capture the unexpected changes of the operating parameter. This process of manually adjusting the threshold value of the parameter is not only tedious but also time-consuming, which reduces the work efficiency of the operator.

[0004] In view of this, it is desirable to provide an improved monitoring device capable of automatically identifying the parameter changes of a device in different stable operating states and automatically setting the corresponding parameter threshold value range to ensure that the monitoring device can accurately determine the fault state of the device, avoid the monitoring device from generating unexpected alarms or missing reports, and at the same time, reduce the operation burden of the operator and improve the work efficiency. SUMMARY

[0005] The present application is proposed in view of the above problems, and the main purpose of the present application is to provide an improved monitoring threshold adjustment module and a monitoring device comprising the same to solve the technical problem in the prior art that it is difficult to automatically adjust the monitoring threshold value of an operating parameter of a device for different stable operating states of the device to accurately determine the fault state of the device, which results in a heavy operation burden of an operator and low work efficiency.

[0006] To achieve the above object, according to one aspect of the present application, a monitoring threshold adjustment module is provided for automatically adjusting a threshold of a monitoring module for monitoring a running parameter of a running device, the monitoring module comprising a first monitoring input interface, a second monitoring input interface and a first monitoring output interface, the first monitoring input interface being connected to an output terminal of the device to receive an analog output signal indicative of a value of the running parameter varying with time, the second monitoring input interface being used to receive a first threshold, the monitoring module converting the analog output signal into a first digital signal indicative of the value of the running parameter varying with time, outputting the first digital signal via the first monitoring output interface, comparing a current value of the running parameter at a current time indicated by the first digital signal with the first threshold, and generating an alarm signal only in response to the current value being greater than or equal to the first threshold, or generating an alarm signal only in response to the current value being less than or equal to the first threshold, the monitoring threshold adjustment module comprising: a first selector comprising a first data input terminal of the first selector, a second data input terminal of the first selector, a selection line input terminal of the first selector and a data output terminal of the first selector, the first data input terminal of the first selector being connected to the first monitoring output interface, the data output terminal of the first selector being connected to the second data input terminal of the first selector, the selection line input terminal of the first selector being used to receive an activation signal as a selection signal for enabling the monitoring threshold adjustment module, the data output terminal of the first selector outputting first output data as a current value of a digital signal received from the first data input terminal of the first selector in a case where the selection line input terminal of the first selector does not receive the selection signal, and outputting second output data as a current value of a digital signal received from the second data input terminal of the first selector in a case where the selection line input terminal of the first selector receives the selection signal; and a first arithmetic logic unit comprising a first data input terminal of the first arithmetic logic unit, a second data input terminal of the first arithmetic logic unit and a data output terminal of the first arithmetic logic unit, the first data input terminal of the first arithmetic logic unit being connected to the data output terminal of the first selector, the second data input terminal of the first arithmetic logic unit receiving a first operand, the data output terminal of the first arithmetic logic unit outputting third output data, the third output data being a result of an operation of the data received by the first data input terminal of the first arithmetic logic unit and the first operand received by the second data input terminal of the first arithmetic logic unit via the first arithmetic logic unit.and a second selector, the second selector comprising a first data input terminal of the second selector, a second data input terminal of the second selector, a selection line input terminal of the second selector, and a data output terminal of the second selector, the first data input terminal of the second selector receiving a first input data as a preset first initial threshold value, the second data input terminal of the second selector being connected to the data output terminal of the first arithmetic logic unit, the selection line input terminal of the second selector being configured to receive the activation signal as the selection signal to enable the monitoring threshold adjustment module, the data output terminal of the second selector being connected to the second monitoring input interface of the monitoring module, the data output terminal of the second selector outputting the first input data received from the first data input terminal of the second selector in a case that the selection line input terminal of the second selector does not receive the selection signal, and outputting the third output data from the first arithmetic logic unit received from the second data input terminal of the second selector in a case that the selection line input terminal of the second selector receives the selection signal.

[0007] In this way, upon receiving the activation signal, the first initial threshold value used by the monitoring module, which is irrelevant to the current operating parameter value, can be adjusted to the first threshold value related to the current operating parameter value (which is based on the value of the operating parameter at the previous time point). In this way, even if the operating parameter of the device changes at different stable operating states due to different times and different operating conditions, etc., the reference value of the operating parameter at the current stable operating state can be accurately reflected by locking the operating parameter value at the previous time point when the activation signal is received, and the first threshold value for monitoring the operating parameter that matches the current stable operating state is generated based on the operating parameter value at the previous time point, so that the corresponding parameter threshold value is automatically set for different stable operating states, ensuring that the monitoring module can accurately monitor the operating parameter. The monitoring module can also reduce the monitoring time of the staff on the device, reduce the operation burden of the staff, and improve the work efficiency.

[0008] Further, according to an embodiment of the present application, the monitoring module further comprises a second monitoring output interface for outputting an alarm signal, and the monitoring threshold adjustment module further comprises a combination logic unit comprising an enable input terminal, a logic input terminal, and a logic output terminal, the enable input terminal being configured to receive a start signal indicating enabling the monitoring threshold adjustment module, the logic input terminal being connected to the second monitoring output interface of the monitoring module, the logic output terminal being connected to the selection line input terminal of the first selector and the selection line input terminal of the second selector, and the logic output terminal outputting the activation signal as the selection signal to enable the monitoring threshold adjustment module in a case that the enable input terminal receives the start signal and the logic input terminal does not receive the alarm signal.

[0009] In this way, it can be ensured that the activation signal for enabling the monitoring threshold adjustment module as the selection signal is output only when the start signal from the user enabling the monitoring threshold adjustment module is received and the operating parameter value at this time is in the normal range (i.e. no alarm signal is generated). That is, it is ensured that the operating parameter value at the previous time of receiving the activation signal, which is used as the reference value of the operating parameter in the current stable operating state, is the operating parameter value in the required stable operating state.

[0010] Further, according to an embodiment of the present application, the monitoring module further comprises a third monitoring input interface for receiving a second threshold value, the first threshold value being different from the second threshold value, the monitoring module comparing the current value of the operating parameter at the current time indicated by the first digital signal with each of the first threshold value and the second threshold value, generating the first alarm signal in response to the current value being greater than or equal to the larger one of the first threshold value and the second threshold value, and generating the second alarm signal in response to the current value being less than or equal to the smaller one of the first threshold value and the second threshold value, the monitoring threshold adjustment module further comprising: a second arithmetic logic unit comprising a first data input terminal of the second arithmetic logic unit, a second data input terminal of the second arithmetic logic unit, and a data output terminal of the second arithmetic logic unit, the first data input terminal of the second arithmetic logic unit being connected to the data output terminal of the first selector, the second data input terminal of the second arithmetic logic unit receiving a second operand, the data output terminal of the second arithmetic logic unit outputting fourth output data, the fourth output data being the result of the operation of the data received by the first data input terminal of the second arithmetic logic unit and the second operand received by the second data input terminal of the second arithmetic logic unit by the second arithmetic logic unit; and a third selector comprising a first data input terminal of the third selector, a second data input terminal of the third selector, a selection line input terminal of the third selector, and a data output terminal of the third selector, the first data input terminal of the third selector receiving second input data indicating a preset second initial threshold value, the second data input terminal of the third selector being connected to the data output terminal of the second arithmetic logic unit, the selection line input terminal of the third selector being for receiving the activation signal for enabling the monitoring threshold adjustment module as the selection signal, the data output terminal of the third selector being connected to the third monitoring input interface, the data output terminal of the third selector outputting the second input data received from the first data input terminal of the third selector in the case that the selection line input terminal of the third selector does not receive the selection signal, and outputting the fourth output data from the second arithmetic logic unit received from the second data input terminal of the third selector in the case that the selection line input terminal of the third selector receives the selection signal.

[0011] In this way, by adding the second arithmetic logic unit and the third selector, a second threshold value related to the current operating parameter value (which is based on the value of the operating parameter at the previous time instant) can be further generated upon receiving the activation signal, thereby satisfying the monitoring requirement of the monitoring module on the operating parameter. Furthermore, by adding more combinations of arithmetic logic units and selectors, more threshold values related to the current operating parameter value at the steady state can be generated for the operating parameter.

[0012] Further, according to an embodiment of the present application, the monitoring module further comprises a second monitoring output interface for outputting a first alarm signal having a high level and a third monitoring output interface for outputting a second alarm signal having a high level, and the monitoring threshold adjustment module further comprises: a combination logic unit comprising an enable control function unit, a first NAND gate unit, a second NAND gate unit, and an AND gate unit, the AND gate unit comprising a first AND gate logic input terminal, a second AND gate logic input terminal, a third AND gate logic input terminal, and an AND gate logic output terminal, the AND gate logic output terminal being connected to the selection line input terminal of the first selector, the selection line input terminal of the second selector, and the selection line input terminal of the third selector, the AND gate logic output terminal outputting an activation signal for enabling the monitoring threshold adjustment module when the signal received by the first AND gate logic input terminal, the signal received by the second AND gate logic input terminal, and the signal received by the third AND gate logic input terminal are all high level, the enable control function unit comprising an enable input terminal and an enable signal output terminal, the enable input terminal being used for receiving a start signal indicating the enabling of the monitoring threshold adjustment module, the enable signal output terminal being connected to the first AND gate logic input terminal of the AND gate unit, the enable signal output terminal outputting an enable output signal having a high level when the start signal is received by the enable input terminal, the first NAND gate unit comprising a logic input terminal of the first NAND gate unit and a logic output terminal of the first NAND gate unit, the logic input terminal of the first NAND gate unit being connected to the second monitoring output interface of the monitoring module, the logic output terminal of the first NAND gate unit outputting a first logic output signal having a high level when the first alarm signal is not received by the logic input terminal of the first NAND gate unit, the second NAND gate unit comprising a logic input terminal of the second NAND gate unit and a logic output terminal of the second NAND gate unit, the logic input terminal of the second NAND gate unit being connected to the third monitoring output interface of the monitoring module, the logic output terminal of the second NAND gate unit outputting a second logic output signal having a high level when the second alarm signal is not received by the logic input terminal of the second NAND gate unit.

[0013] In this way, the activation signal can be output to each of the first selector, the second selector, and the third selector when the start signal for enabling the monitoring threshold adjustment module is received by the combination logic unit and the operating parameter value at this time is within the range defined by the first threshold value and the second threshold value (i.e., the first alarm signal and the second alarm signal are not generated).

[0014] Further, according to an embodiment of the present application, the monitoring threshold adjustment module further comprises: a delay timer comprising a first counter, a first comparator and a latch, the first counter comprising a trigger input terminal and a count value output terminal, the trigger input terminal being connected to the AND gate logic output terminal of the AND gate unit, the count value output terminal outputting a current count value of the first counter in a case that the trigger input terminal receives the activation signal, the first comparator comprising a comparison input terminal, a set value input terminal and a match output terminal, the comparison input terminal being connected to the count value output terminal of the first counter, the set value input terminal receiving third input data indicative of a delay period of the activation signal, the match output terminal outputting a first comparator output signal having a high level in a case that the count value received by the comparison input terminal is equal to the delay period indicated by the third input data received by the set value input terminal, the latch comprising a set input terminal and a latch output terminal, the set input terminal being connected to the match output terminal, the latch output terminal being connected to the selection line input terminal of the first selector, the selection line input terminal of the second selector and the selection line input terminal of the third selector, the latch output terminal outputting a reset signal having a low level as the selection signal in a case that the set input terminal receives the activation signal of the monitoring threshold adjustment module having the high level.

[0015] In this way, the delay enable function of the monitoring threshold adjustment module can be realized by using the delay timer, so as to meet the monitoring requirement of the operating parameter.

[0016] Further, according to an embodiment of the present application, the latch further comprises a reset input terminal, the delay timer further comprises a second counter and a second comparator, the second counter comprising a trigger input terminal of the second counter and a count value output terminal of the second counter, the latch output terminal being further connected to the trigger input terminal of the second counter, the count value output terminal of the second counter outputting a current count value of the second counter in a case that the trigger input terminal of the second counter receives the activation signal; the second comparator comprising a comparison input terminal of the second comparator, a set value input terminal of the second comparator and a match output terminal of the second comparator, the comparison input terminal of the second comparator being connected to the count value output terminal of the second counter, the set value input terminal of the second comparator receiving fourth input data indicative of a duration period of the activation signal, the match output terminal of the second comparator being connected to the reset input terminal of the latch, the match output terminal of the second comparator outputting a second comparator output signal having a high level in a case that the count value received by the comparison input terminal of the second comparator is equal to the duration period indicated by the fourth input data received by the set value input terminal of the second comparator, wherein the latch output terminal outputs a reset signal having a low level as the selection signal in a case that the reset input terminal receives the second comparator output signal having the high level.

[0017] In this way, it is also possible to implement the function of enabling the monitoring threshold adjustment module 100 within a preset time period by means of a delay timer, so as to meet the monitoring requirement for the operating parameter.

[0018] Further, according to an embodiment of the present application, each of the first arithmetic logic unit and the second arithmetic logic unit comprises at least one of the group consisting of a multiplier, a divider, an adder, and a subtractor.

[0019] In this way, each arithmetic logic unit can be implemented by means of an integrated circuit.

[0020] According to another aspect of the present application, there is provided a monitoring device comprising the above monitoring threshold adjustment module, and a monitoring module for monitoring an operating parameter of a device in operation, the monitoring module comprising a first monitoring input interface, a second monitoring input interface, and a first monitoring output interface, the first monitoring input interface being connected to an output terminal of the device to receive an analog output signal indicative of a value of the operating parameter varying with time, the second monitoring input interface being connected to the second selection output terminal of the second selector of the monitoring threshold adjustment module, the first monitoring output interface being connected to the first data input terminal of the first selector of the monitoring threshold adjustment module, the monitoring module converting the analog output signal into a first digital signal indicative of the value of the operating parameter varying with time, outputting the first digital signal via the first monitoring output interface, comparing a current value of the operating parameter at a current time indicated by the first digital signal with the first threshold value, and generating an alarm signal only in response to the current value being greater than or equal to the first threshold value, or generating an alarm signal only in response to the current value being less than or equal to the first threshold value.

[0021] In the embodiments of the present application, a monitoring threshold adjustment module is provided for automatically adjusting the threshold of a monitoring module for monitoring a running parameter of a running device, the monitoring module comprising a first monitoring input interface, a second monitoring input interface and a first monitoring output interface, the first monitoring input interface being connected to an output terminal of the device to receive an analog output signal indicative of a value of the running parameter varying with time, the second monitoring input interface being used to receive a first threshold, the monitoring module converting the analog output signal into a first digital signal indicative of the value of the running parameter varying with time, outputting the first digital signal via the first monitoring output interface, comparing a current value of the running parameter at a current time indicated by the first digital signal with the first threshold, and generating an alarm signal only in response to the current value being greater than or equal to the first threshold, or generating an alarm signal only in response to the current value being less than or equal to the first threshold, the monitoring threshold adjustment module comprising: a first selector comprising a first data input terminal of the first selector, a second data input terminal of the first selector, a selection line input terminal of the first selector and a data output terminal of the first selector, the first data input terminal of the first selector being connected to the first monitoring output interface, the data output terminal of the first selector being connected to the second data input terminal of the first selector, the selection line input terminal of the first selector being used to receive an activation signal as a selection signal for enabling the monitoring threshold adjustment module, the data output terminal of the first selector outputting first output data as a current value of a digital signal received from the first data input terminal of the first selector in the case that the selection line input terminal of the first selector does not receive the selection signal, and outputting second output data as a current value of a digital signal received from the second data input terminal of the first selector in the case that the selection line input terminal of the first selector receives the selection signal; a first arithmetic logic unit comprising a first data input terminal of the first arithmetic logic unit, a second data input terminal of the first arithmetic logic unit and a data output terminal of the first arithmetic logic unit, the first data input terminal of the first arithmetic logic unit being connected to the data output terminal of the first selector, the second data input terminal of the first arithmetic logic unit receiving a first operand, the data output terminal of the first arithmetic logic unit outputting third output data, the third output data being a result of an operation of the data received by the first data input terminal of the first arithmetic logic unit and the first operand received by the second data input terminal of the first arithmetic logic unit via the first arithmetic logic unit.and a second selector, the first data input terminal of the second selector receiving a first input data as a preset first initial threshold value, the second data input terminal of the second selector being connected to the data output terminal of the first arithmetic logic unit, the selection line input terminal of the second selector being used for receiving the activation signal as the selection signal to activate the monitoring threshold adjustment module, the data output terminal of the second selector being connected to the second monitoring input interface of the monitoring module, the data output terminal of the second selector outputting the first input data received from the first data input terminal of the second selector in the case that the selection line input terminal of the second selector does not receive the selection signal, and outputting the third output data from the first arithmetic logic unit received from the second data input terminal of the second selector in the case that the selection line input terminal of the second selector receives the selection signal, so as to at least solve the technical problem that it is difficult to accurately determine the fault state of the device by automatically adjusting the monitoring threshold of the operating parameter of the device for different stable operating states in the prior art, and to reduce the operation burden of the worker and improve the work efficiency, so as to achieve the technical effect that the monitoring threshold of the monitoring module is automatically adjusted to match the current operating state when the operating parameter of the device in different stable operating states changes, so as to ensure that the monitoring module can accurately monitor the operating parameter, and to reduce the operation burden of the worker and improve the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein in conjunction with the description of the application. The drawings are as follows:

[0023] Figure 1 is a schematic diagram of a monitoring threshold adjustment module and a monitoring device comprising the same according to an embodiment of the application;

[0024] Figure 2 is a schematic diagram of a monitoring threshold adjustment module and a monitoring device comprising the same according to an embodiment of the application; and

[0025] Figure 3 is a schematic diagram of a monitoring threshold adjustment module and a monitoring device comprising the same according to another exemplary embodiment of the application.

[0026] In the above drawings, the following reference signs are used:

[0027] 100 monitoring threshold adjustment module

[0028] 110: first selector

[0029] 111: first data input terminal of the first selector

[0030] 113: second data input terminal of the first selector

[0031] 115: select line input terminal of the first selector

[0032] 117: data output terminal of the first selector

[0033] 120: first arithmetic logic unit

[0034] 121: first data input terminal of the first arithmetic logic unit

[0035] 123: second data input terminal of the first arithmetic logic unit

[0036] 125: data output terminal of the first arithmetic logic unit

[0037] 130: second selector

[0038] 131: first data input terminal of the second selector

[0039] 133: second data input terminal of the second selector

[0040] 135: select line input terminal of the second selector

[0041] 137: data output terminal of the second selector

[0042] 140: second arithmetic logic unit

[0043] 141: first data input terminal of the second arithmetic logic unit

[0044] 143: second data input terminal of the second arithmetic logic unit

[0045] 145: data output terminal of the second arithmetic logic unit

[0046] 150: third selector

[0047] 151: first data input terminal of the third selector

[0048] 153: second data input terminal of the third selector

[0049] 155: select line input terminal of the third selector

[0050] 157: data output terminal of the third selector

[0051] 160: combinational logic unit

[0052] 1601: enable input terminal

[0053] 1602: first logic input terminal

[0054] 1603: second logic input terminal

[0055] 1604: logic output terminal

[0056] 1605: third logic input terminal

[0057] 161: enable control function unit

[0058] 162: first NOT gate unit

[0059] 163: second NOT gate unit

[0060] 164: AND gate unit

[0061] 165: third NOT gate unit

[0062] 170: delay timer

[0063] 171: input terminal of delay timer

[0064] 172: output terminal of delay timer

[0065] 200: monitoring module

[0066] 201: first monitoring input interface

[0067] 202: second monitoring input interface

[0068] 203: third monitoring input interface

[0069] 204: first monitoring output interface

[0070] 205: second monitoring output interface

[0071] 206: third monitoring output interface

[0072] 207: fourth monitoring output interface

[0073] 211: first display unit

[0074] 212: second display unit

[0075] 213: third display unit

[0076] 214: fourth display unit

[0077] Asig(t): analog output signal

[0078] Ds1(t): first digital signal

[0079] DS1(t0): value of the operating parameter at time t0

[0080] DATAI1: first input data

[0081] DATAI2: second input data

[0082] DATAO1: first output data

[0083] DATAO2: second output data

[0084] DATAO3: third output data

[0085] DATAO4: fourth output data

[0086] Th1: first threshold value

[0087] Th2: second threshold value

[0088] 300 monitoring device DETAILED DESCRIPTION

[0089] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0090] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0091] In the present application, unless otherwise specified, the orientation words such as "up, down, top, bottom" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer relative to the contour of the components themselves, but the above orientation words are not used to limit the present application.

[0092] The purpose of the present application is to provide an improved monitoring threshold adjustment module and a monitoring device comprising the same, which can automatically adjust the monitoring threshold of the monitoring module for the operating parameters of the equipment, so as to automatically set the corresponding parameter threshold range for the parameter changes of the equipment in different stable operating states, thereby ensuring that the monitoring device can accurately judge the fault state of the equipment in different stable operating states of the equipment, avoiding the occurrence of unexpected alarms or false alarms, and at the same time, reducing the operation burden of the staff and improving the work efficiency.

[0093] Figure 1FIG. 1 is a schematic diagram of a monitoring threshold adjustment module and a monitoring device including the same according to an embodiment of the present application. As shown in FIG. 1, the monitoring device includes a monitoring threshold adjustment module 100 according to an embodiment of the present application. Figure 1As shown, the monitoring device 300 comprises a monitoring threshold adjustment module 100 for automatically adjusting a threshold of a monitoring module 200 for monitoring an operating parameter of a device under operation, and the monitoring module 200. The monitoring module 200 comprises a first monitoring input interface 201 connected to an output (not shown) of the device for receiving an analog output signal ASig(t) indicative of a value of the operating parameter as a function of time, a second monitoring input interface 202 for receiving a first threshold Thl (i.e. a first threshold signal indicative of the first threshold Thl), and a first monitoring output interface 204, the monitoring module 200 converts the analog output signal ASig(t) into a first digital signal DS1(t) indicative of the value of the operating parameter as a function of time, outputs the first digital signal DS1(t) via the first monitoring output interface 204, compares a current value DS1(t0) of the operating parameter at a current time t0 indicated by the first digital signal DS1(t) with the first threshold Thl, and generates an alarm signal only in response to the current value DS1(t0) being greater than or equal to the first threshold Thl, or only in response to the current value DS1(t0) being less than or equal to the first threshold Thl. The monitoring threshold adjustment module 100 comprises a first selector 110 comprising a first data input terminal 111 of the first selector connected to the first monitoring output interface 204, a second data input terminal 113 of the first selector, a selection line input terminal 115 of the first selector for receiving an activation signal as a selection signal for enabling the monitoring threshold adjustment module 100, and a data output terminal 117 of the first selector connected to the second data input terminal 113 of the first selector, the data output terminal 117 of the first selector outputs a first output data as a current value of a digital signal received from the first data input terminal 111 of the first selector in a case where the selection line input terminal 115 of the first selector does not receive the selection signal, and outputs a second output data as a current value of a digital signal received from the second data input terminal 113 of the first selector in a case where the selection line input terminal 115 of the first selector receives the selection signal.The first arithmetic logic unit 120 includes a first data input terminal 121 of the first arithmetic logic unit, a second data input terminal 123 of the first arithmetic logic unit, and a data output terminal 125 of the first arithmetic logic unit, the first data input terminal 121 of the first arithmetic logic unit is connected to the data output terminal 117 of the first selector, the second data input terminal 123 of the first arithmetic logic unit receives the first operand, the data output terminal 125 of the first arithmetic logic unit outputs the third output data, the third output data is the result of the data received by the first data input terminal 121 of the first arithmetic logic unit and the first operand received by the second data input terminal 123 of the first arithmetic logic unit after being operated by the first arithmetic logic unit 120; and the second selector 130 includes a first data input terminal 131 of the second selector, a second data input terminal 133 of the second selector, a selection line input terminal 135 of the second selector, and a data output terminal 137 of the second selector, the first data input terminal 131 of the second selector receives the first input data which is the preset first initial threshold value, the second data input terminal 133 of the second selector is connected to the data output terminal 125 of the first arithmetic logic unit, the selection line input terminal 135 of the second selector is used to receive the activation signal which is the selection signal of the monitoring threshold adjustment module 100, the data output terminal 137 of the second selector is connected to the second monitoring input interface 202 of the monitoring module 200, the data output terminal 137 of the second selector outputs the first input data received from the first data input terminal 131 of the second selector in the case that the selection line input terminal 135 of the second selector does not receive the selection signal, and outputs the third output data from the first arithmetic logic unit 120 received from the second data input terminal 133 of the second selector in the case that the selection line input terminal 135 of the second selector receives the selection signal.

[0094] In this way, at the current time t0, assuming that neither the selection line input terminal 115 of the first selector nor the selection line input terminal 135 of the second selector receives an activation signal, the data output terminal 117 of the first selector outputs the first output data DATAO1, which is the current value DS1(t0) of the first digital signal DS1(t) received from the first data input terminal 111 of the first selector at the current time t0. The first output data DATAO1 (i.e. DS1(t0)) is output to the first data input terminal 121 of the first arithmetic logic unit 120 and the second data input terminal 113 of the first selector. The first arithmetic logic unit 120 performs a first operation on the first output data DATAO1 (i.e. DS1(t0)) received from the data output terminal 117 of the first selector and a first operand (which can be a preset value related to the operation type of the first arithmetic logic unit) received by the second data input terminal 123 of the first arithmetic logic unit to obtain third output data DATAO3, which is output via the data output terminal 125 of the first arithmetic logic unit. Then, the second data input terminal 133 of the second selector 130 receives the third output data DATAO3 from the data output terminal 125 of the first arithmetic logic unit. The first data input terminal 131 of the second selector 130 receives the first input data DATAI1 (which can be output by the staff via the user output interface of the user device) as a preset first initial threshold value. Since the selection line input terminal 135 of the second selector 130 does not receive an activation signal, the data output terminal 137 of the second selector outputs the first input data DATAI1 received from the first data input terminal 131 of the second selector. At this time, the second monitoring input interface 202 of the monitoring module 200 receives the first input data DATAI1 and compares it with the current value DS1(t0) of the operating parameter indicated by the first digital signal DS1(t) at the current time t0 as an initial first threshold value (which can be an upper threshold value or a lower threshold value as needed), and generates an alarm signal when the current value DS1(t0) is greater than or equal to the first initial threshold value (which is an upper threshold value at this time) or when the current value DS1(t0) is less than or equal to the first initial threshold value (which is a lower threshold value at this time).

[0095] Then, at the next time t1 (t1 = t0 + a time interval At, which can be an interval at which the data output terminal 117 of the first selector samples and outputs an input signal, and can be set in advance), assuming that the input line to which the selection line input terminal 115 of the first selector and the selection line input terminal 135 of the second selector are commonly connected receives an activation signal, the data output terminal 117 of the first selector 110 will output the second output data DATA02 that is a current value of the digital signal received from the second data input terminal 113 of the first selector at the current time t1. Since the digital signal received by the second data input terminal 113 of the first selector at time t1 indicates the first output data DATA01 (i.e., DS1(t0)) output from the data output terminal 117 of the first selector 110 at time t0, the current value of the digital signal is DS1(t0). Thus, at time t1, the second output data DATA02 output from the data output terminal 117 of the first selector 110 is the value DS1(t0) of the first digital signal DS1(t) at the previous time t0. This second output data DATA02 is further output to the first data input terminal 121 of the first arithmetic logic unit 120 and the second data input terminal 113 of the first selector 110. Thus, from time t1, as long as the selection line input terminal 115 of the first selector continues to receive the activation signal, the data output terminal 117 of the first selector 110 will continue to output the second output data DATA02 that is DS1(t0) and return it to the second data input terminal 113 of the first selector 110. As a result, a lock on the value DS1(t0) is formed at the data output terminal 117 of the first selector. Next, the first arithmetic logic unit 120 performs a first operation on the second output data DATA02 (i.e., DS1(t0)) received from the data output terminal 117 of the first selector and the first operand received by the second data input terminal 123 of the first arithmetic logic unit to obtain third output data DATA03 based on DS1(t0), which is output via the data output terminal 125 of the first arithmetic logic unit. The second data input terminal 133 of the second selector 130 receives the third output data DATA03 based on DS1(t0) from the data output terminal 125 of the first arithmetic logic unit. Since the selection line input terminal 135 of the second selector 130 receives the activation signal, the data output terminal 137 of the second selector 130 does not output the first input data DATAI1 received from the first data input terminal 131 of the second selector 130, but outputs the third output data DATA03 based on DS1(t0) received from the second data input terminal 133 of the second selector.The second monitoring input interface 202 of the monitoring module 200 receives the third output data DATAO3 based on DS1(t0) output from the data output terminal 137 of the second selector, and compares it with the current value DS1(t1) of the operating parameter indicated by the first digital signal DS1(t) at the current time t1 as the first threshold Th1 (which can be an upper threshold or a lower threshold as needed), and generates an alarm signal when the current value Vt1 is greater than or equal to the first threshold (which is an upper threshold at this time) or when the current value Vt1 is less than or equal to the first threshold (which is a lower threshold at this time).

[0096] Thus, by receiving the activation signal at the time t1, the first initial threshold used by the monitoring module 200, i.e., the first input data DATAI1, which is independent of the current value of the operating parameter, can be adjusted to the first threshold Th1, i.e., the third output data DATAO3 based on the value of the operating parameter at the time t0, which is related to the current value of the operating parameter.

[0097] In this way, even if the operating parameter of the device changes (e.g., the range of values changes) at different stable operating states due to different times and different operating conditions, etc., the reference value of the operating parameter at the current stable operating state can be accurately reflected by locking the operating parameter value at the previous time when the activation signal is received, and the first threshold for monitoring the operating parameter that matches the current stable operating state can be generated based on the operating parameter value at the previous time, so that the corresponding parameter threshold is automatically set for different stable operating states, ensuring that the monitoring module can accurately monitor the operating parameter. Since the parameter threshold can accurately reflect the current stable operating state, the monitoring time of the device by the staff can also be reduced, the operation burden of the staff can be reduced, and the work efficiency can be improved.

[0098] In the present application, the first operand can be a preset value related to the operation type of the first arithmetic logic unit. For example, when the first arithmetic logic unit is a multiplier, the first operand can be a multiplier (e.g., 0.5, 0.7, 1.1, 1.2, 1.5, 2, etc.) for multiplying the data output from the data output terminal 117 of the first selector, when the first arithmetic logic unit is a divider, the first operand can be a divisor (e.g., 1.1, 1.2, 1.5, etc.) for division, when the first arithmetic logic unit is an adder, the first operand can be an addend (e.g., 5, 10, 20, 50, etc.) for addition, and when the first arithmetic logic unit is a subtractor, the first operand can be a minuend (e.g., 5, 10, 20, 50, etc.) for subtraction. The first operand can be output via a user output interface of a user device. The value of the first operand can be set by a user according to the type of the monitored device and / or the type of the operating parameter, and / or the type of the first arithmetic logic unit, etc.

[0099] Further, in the present application, the monitoring module 200 can further comprise a second monitoring output interface 205 for outputting an alarm signal, and the monitoring threshold adjustment module 100 can further comprise a combinational logic unit 160. Figure 2 is a schematic diagram of a monitoring threshold adjustment module and a monitoring device comprising the same according to an exemplary embodiment of the present application. Figure 2 The monitoring threshold adjustment module 100 shown is in a state of being enabled. Figure 1 The monitoring threshold adjustment module 100 shown is in a state of being enabled. The combinational logic unit 160 can comprise an enable input terminal 1601 for receiving a start signal indicating enabling the monitoring threshold adjustment module 100, a logic input terminal 1602, and a logic output terminal 1604. The start signal can be output from a user output interface of a user device (e.g. a combination of a user interface, or a toggle switch and a confirmation button) and have a high level in response to a staff operation. The logic input terminal 1602 can be connected to the second monitoring output interface 205 of the monitoring module 200, and the logic output terminal 1604 can be connected to the selection line input terminal 115 of the first selector and the selection line input terminal 135 of the second selector. The combinational logic unit 160 can output an activation signal for enabling the monitoring threshold adjustment module 100 as a selection signal in a case where the enable input terminal 1601 receives the start signal and the logic input terminal 1602 does not receive the alarm signal.

[0100] Such a combinational logic unit can be implemented by a combination of an enable control function unit, a NOT gate unit, and an AND gate unit in an integrated circuit. For example, the combinational logic unit 160 can comprise an enable control function unit, a first NOT gate unit, and an AND gate unit (not shown). Figure 2The enable control function unit can include an enable input terminal 1601 for receiving the start signal indicating the activation of the monitoring threshold adjustment module and an enable signal output terminal outputting an enable output signal having a high level if the start signal is received by the enable input terminal. The first NOT gate unit can include a logic input terminal of the first NOT gate unit connectable to the second monitoring output interface 205 of the monitoring module 200 and a logic output terminal of the first NOT gate unit outputting a first logic output signal having a high level if the alarm signal is not received by the logic input terminal of the first NOT gate unit. The AND gate unit can include a first AND gate logic input terminal connectable to the enable signal output terminal, a second AND gate logic input terminal connectable to the logic output terminal of the first NOT gate unit, and an AND gate logic output terminal connectable to the selection line input terminal 115 of the first selector and the selection line input terminal 135 of the second selector as a logic output terminal of the combination logic unit 160. The AND gate logic output terminal can output the activation signal activating the monitoring threshold adjustment module 100 if both the signal received by the first AND gate logic input terminal and the signal received by the second AND gate logic input terminal have a high level.

[0101] Thus, when the combination logic unit 160 receives the start signal activating the monitoring threshold adjustment module 100 from the worker and the monitoring module 200 judges that the operating parameter value at this time is in the normal range (i.e. no alarm signal is generated), the activation signal can be output to the selection line input terminal 115 of the first selector and the selection line input terminal 135 of the second selector. In this way, it can be ensured that the operating parameter value at the previous time of receiving the activation signal, which is used as the reference value of the operating parameter in the current stable operating state, is the operating parameter value in the required stable operating state.

[0102] In the present application, the first arithmetic logic unit 120 and the second selector 130 are used to calculate and output the first threshold Th1. That is, the combination of one arithmetic logic unit and one selector after it corresponds to one threshold. The monitoring threshold adjustment module 100 can further include more combinations of arithmetic logic units and selectors.

[0103] Figure 3 is a schematic diagram of a monitoring threshold adjustment module and a monitoring device including the same according to another exemplary embodiment of the present application. As Figure 3 shown, the monitoring module 200 is compared with Figure 2 Figure 3 ​The illustrated monitoring module 200 further comprises a third monitoring input interface 203 for receiving a second threshold value Th2, the first threshold value being different from the second threshold value, and a third monitoring output interface 206, the monitoring module 200 comparing a current value of the operating parameter indicated by the first digital signal DS1(t) at the current time instant with each of the first threshold value and the second threshold value, generating a first alarm signal in response to the current value being greater than or equal to the larger one of the first threshold value and the second threshold value, and generating a second alarm signal in response to the current value being smaller than or equal to the smaller one of the first threshold value and the second threshold value. The second monitoring output interface 205 can be configured to output the first alarm signal having a high level, and the third monitoring output interface 206 can be configured to output the second alarm signal having a high level.

[0104] Figure 3 The illustrated monitoring threshold adjustment module 100 is configured to Figure 2The second arithmetic logic unit 140 and the third selector 150 are additionally added on the basis of the illustrated monitoring threshold adjustment module 100. The second arithmetic logic unit 140 and the third selector 150 are used to output a second threshold value to the monitoring module 200. The second arithmetic logic unit 140 includes a first data input terminal 141 of the second arithmetic logic unit, a second data input terminal 143 of the second arithmetic logic unit, and a data output terminal 145 of the second arithmetic logic unit, the first data input terminal 141 of the second arithmetic logic unit is connected to the data output terminal 117 of the first selector, the second data input terminal 143 of the second arithmetic logic unit receives a second operand, and the data output terminal 145 of the second arithmetic logic unit outputs a fourth output data DATAO4, which is a result of the operation of the data received by the first data input terminal 141 of the second arithmetic logic unit and the second operand received by the second data input terminal 143 of the second arithmetic logic unit by the second arithmetic logic unit. The third selector 150 includes a first data input terminal 151 of the third selector, a second data input terminal 153 of the third selector, a selection line input terminal 155 of the third selector, and a data output terminal 157 of the third selector, the first data input terminal 151 of the third selector receives a second input data DATAI2 indicating a preset second initial threshold value, the second data input terminal 153 of the third selector is connected to the data output terminal 145 of the second arithmetic logic unit, the selection line input terminal 155 of the third selector is used to receive the activation signal as the selection signal to enable the monitoring threshold adjustment module 100, and the data output terminal 157 of the third selector is connected to the third monitoring input interface 203. The data output terminal 157 of the third selector outputs the second input data DATAI2 received from the first data input terminal 151 of the third selector in the case where the selection line input terminal 155 of the third selector does not receive the selection signal, and outputs the fourth output data DATAO4 from the second arithmetic logic unit 140 received from the second data input terminal 153 of the third selector in the case where the selection line input terminal 155 of the third selector receives the selection signal.

[0105] Therefore, similar to the reference Figure 1As described, the repeated description of the first arithmetic logic unit 120 and the second selector 130 is omitted here, and only the second arithmetic logic unit 140 and the third selector 150 are described. At time tO, assuming that none of the selection line input terminal 115 of the first selector, the selection line input terminal 135 of the second selector, and the selection line input terminal 155 of the third selector receives an activation signal, the data output terminal 117 of the first selector outputs the first output data DATAOl, which is the current value DS1(tO) of the first digital signal DS1(t) received from the first data input terminal 111 of the first selector at the current time tO. The first output data DATAOl is output to the first data input terminal 121 of the first arithmetic logic unit, the first data input terminal 141 of the second arithmetic logic unit, and the second data input terminal 113 of the first selector. The second arithmetic logic unit 140 performs a second operation on the first output data DATAOl (i.e. DS1(tO)) received at the first data input terminal 141 of the second arithmetic logic unit and a second operand (which is similar to the first operand and can be a preset value related to the operation type of the second arithmetic logic unit) received at the second data input terminal 143 of the second arithmetic logic unit to obtain the fourth output data DATAO4. The fourth output data DATAO4 is output to the second data input terminal 153 of the third selector via the data output terminal 145 of the second arithmetic logic unit. The first data input terminal 151 of the third selector receives the second input data DATAI2, which is a preset second initial threshold value. Since the selection line input terminal 155 of the third selector does not receive an activation signal as a selection signal, the data output terminal 157 of the third selector outputs the second input data DATAI2 received from the first data input terminal 151 of the third selector. The third monitoring input interface 203 of the monitoring module 200 receives the second input data DATAI2 and compares it with the current value DS1(tO) of the operating parameter indicated by the first digital signal DS1(t) at the current time tO as a second threshold value (which can be an upper threshold value or a lower threshold value as needed), and generates a first alarm signal when the current value DS1(tO) is greater than or equal to the larger one of the first threshold value and the second threshold value, and generates a second alarm signal when the current value DS1(tO) is less than or equal to the smaller one of the first threshold value and the second threshold value.

[0106] Then, at the next time instant tl, assuming that the input line to which the selection line input terminal 115 of the first selector, the selection line input terminal 135 of the second selector and the selection line input terminal 155 of the third selector are commonly connected receives the activation signal, the data output terminal 117 of the first selector 110 will output a second output data DATAO2 which is the current value of the digital signal received from the second data input terminal 113 of the first selector at the current time instant tl. This second output data DATAO2 is the value DS1(tO) of the operating parameter / first digital signal at time instant tO. Also, a lock to the second output data DATAO2, i.e. DS1(tO), is formed at the data output terminal 117 of the first selector. This second output data DATAO2 is output to the first data input terminal 121 of the first arithmetic logic unit, the first data input terminal 141 of the second arithmetic logic unit, and the second data input terminal 113 of the first selector. Next, the second arithmetic logic unit 140 performs a second operation on the second output data DATAO2 received from the first data input terminal 141 of the second arithmetic logic unit and the second operand received from the second data input terminal 143 of the second arithmetic logic unit to obtain a fourth output data DATAO4 based on DS1(tO). This fourth output data DATAO4 is output via the data output terminal 145 of the second arithmetic logic unit to the second data input terminal 153 of the third selector. Since the selection line input terminal 155 of the third selector receives the activation signal as the selection signal, the data output terminal 157 of the third selector outputs the fourth output data DATAO4 received from the second data input terminal 153 of the third selector. The third monitoring input interface 203 of the monitoring module 200 receives the fourth output data DATAO4 based on DS1(tO) output from the data output terminal 157 of the third selector and compares it with the current value DS1(tl) of the operating parameter indicated by the first digital signal DS1(t) at the current time instant tl as the second threshold Th2 (which can be either an upper threshold or a lower threshold as required).

[0107] Thus, by receiving the activation signal at time t1, the first initial threshold value (i.e., the first input data DATAI1) and the second initial threshold value (i.e., the second input data DATAI2) used by the monitoring module 200, which are irrelevant to the current operating parameter value, can be adjusted to the first threshold value Th1 (i.e., the third output data DATAO3 based on the value of the operating parameter at time t0 DS1(t0)) and the second threshold value Th2 (i.e., the fourth output data DATAO4 based on the value of the operating parameter at time t0 DS1(t0)), which are relevant to the current operating parameter value, respectively. In this way, even if the operating parameter of the device changes in different stable operating states, the reference value of the operating parameter in the current stable operating state can be accurately reflected by locking the operating parameter value at the previous time t0 when the activation signal is received, and the first threshold value and the second threshold value for monitoring the operating parameter that match the current stable operating state can be generated based on the operating parameter value at the previous time, so as to ensure that the monitoring module can accurately monitor the operating parameter, and to reduce the operational burden of the staff monitoring the operating parameter of the device and improve work efficiency.

[0108] Figure 3 The types of the second selector 130 and the third selector 150 in the second arithmetic logic unit 140 can be the same as the type of the first selector 110. The second arithmetic logic unit 140 can also be one or more of the group consisting of a multiplier, a divider, an adder, and a subtractor. The second arithmetic logic unit 140 and the first arithmetic logic unit 120 can be the same type or different types, as long as the operation results of the two are different.

[0109] In the present application, alternatively, the first threshold value and the second threshold value can also both be upper threshold values or both be lower threshold values. In the case where both are upper threshold values, the monitoring module 200 can compare the current value of the operating parameter at the current time indicated by the first digital signal DS1(t) with each of the first threshold value and the second threshold value, and generate a first alarm signal in response to the current value being greater than or equal to only the smaller one of the first threshold value and the second threshold value, and generate a second alarm signal in response to the current value being greater than or equal to both the first threshold value and the second threshold value. In the case where both are lower threshold values, the monitoring module 200 can compare the current value of the operating parameter at the current time indicated by the first digital signal DS1(t) with each of the first threshold value and the second threshold value, and generate a first alarm signal in response to the current value being less than or equal to only the larger one of the first threshold value and the second threshold value, and generate a second alarm signal in response to the current value being less than or equal to both the first threshold value and the second threshold value. Alternatively, additional third threshold values, fourth threshold values, etc. can also be set as needed. These threshold values are different from each other, and one threshold value can be generated and output by a combination of one arithmetic logic unit and one selector thereafter.

[0110] InFigure 3 With the first threshold value and the second threshold value shown, the combination logic unit 160 can have the following configuration. The combination logic unit 160 can include an enable control function unit 161, a first NOT gate unit 162, a second NOT gate unit 163, and an AND gate unit 164. The AND gate unit 164 can include a first AND gate logic input terminal, a second AND gate logic input terminal, a third AND gate logic input terminal, and an AND gate logic output terminal (which is a logic output terminal 1604 of the combination logic unit 160), the AND gate logic output terminal is connected to the selection line input terminal 115 of the first selector, the selection line input terminal 135 of the second selector, and the selection line input terminal 155 of the third selector, and the AND gate logic output terminal outputs the activation signal for enabling the monitoring threshold adjustment module when the signals received by the first AND gate logic input terminal, the second AND gate logic input terminal, and the third AND gate logic input terminal are all high. The enable control function unit 161 includes an enable input terminal (which is an enable input terminal 1601 of the combination logic unit 160) for receiving a start signal indicating the enabling of the monitoring threshold adjustment module, and an enable signal output terminal connected to the first AND gate logic input terminal of the AND gate unit, and the enable signal output terminal outputs an enable output signal with a high level when the enable input terminal receives the start signal. The first NOT gate unit 162 includes a logic input terminal of the first NOT gate unit (which is a first logic input terminal 1602 of the combination logic unit 160) connected to the second monitoring output interface 205 of the monitoring module, and a logic output terminal of the first NOT gate unit, which outputs a first logic output signal with a high level when the logic input terminal of the first NOT gate unit does not receive the first alarm signal. The second NOT gate unit 163 includes a logic input terminal of the second NOT gate unit (which is a second logic input terminal 1603 of the combination logic unit 160) connected to the third monitoring output interface 206 of the monitoring module, and a logic output terminal of the second NOT gate unit, which outputs a second logic output signal with a high level when the logic input terminal of the second NOT gate unit does not receive the second alarm signal.

[0111] Thus, when the combination logic unit 160 receives the start signal for enabling the monitoring threshold adjustment module 100 from the staff, and the monitoring module 200 judges that the running parameter value at this time is within the range defined by the first threshold value and the second threshold value (i.e., the first alarm signal and the second alarm signal are not generated), the activation signal as the selection signal can be output to the selection line input terminal 115 of the first selector, the selection line input terminal 135 of the second selector, and the selection line input terminal 155 of the third selector.

[0112] Further, in the present application, the monitoring module 200 can further comprise a fourth monitoring output interface 207. The monitoring module 200 can record the waveform of the first digital signal DS1(t) in a preset time period before the current time via a memory or a buffer, determine whether the waveform is in an abnormal mode, and output a third alarm signal via the fourth monitoring output interface 207 when it is determined that the waveform is in the abnormal mode. The abnormal mode can include at least one of the waveform being continuously in a baseline state, the waveform being interrupted, and the waveform being spiked.

[0113] Correspondingly, the combination logic unit 160 can further comprise a third NOT gate unit 165, and the AND gate unit 164 can further comprise a fourth AND gate logic input terminal. The third NOT gate unit 165 comprises a logic input terminal of the third NOT gate unit (which serves as a third logic input terminal 1605 of the combination logic unit 160) and a logic output terminal of the third NOT gate unit, the logic input terminal of the third NOT gate unit being connected to the fourth monitoring output interface 207 of the monitoring module, and the logic output terminal of the third NOT gate unit outputting a third logic output signal with a high level in the case that the logic input terminal of the third NOT gate unit does not receive the third alarm signal. The logic output terminal of the third NOT gate unit is connected to the fourth AND gate logic input terminal of the AND gate unit 164. At this time, the AND gate logic output terminal of the AND gate unit 164 can output the activation signal as the selection signal in the case that the signals received by the first AND gate logic input terminal, the second AND gate logic input terminal, the third AND gate logic input terminal and the fourth AND gate logic input terminal are all high levels.

[0114] Further, in the present application, as shown in Figure 3 , the monitoring threshold adjustment module 100 can further comprise a delay timer 170. The delay timer 170 can comprise an input terminal 171 of the delay timer and an output terminal 172 of the delay timer. The input terminal 171 of the delay timer is connected to the logic output terminal 1604 of the combination logic unit 160 (which is the AND gate logic output terminal of the AND gate unit 164 in the present application), and the output terminal 172 of the delay timer is connected to each of the selection line input terminal 115 of the first selector, the selection line input terminal 135 of the second selector and the selection line input terminal 155 of the third selector. Figure 3

[0115] ​The delay timer 170 may also receive third input data indicating a delay period for the activation signal. When the activation signal outputted by the combinational logic unit 160 as a selection signal is received at the input terminal 171 of the delay timer, the delay timer 170 outputs the delayed activation signal via the output terminal 172 of the delay timer after the delay period specified by the third input data. This implements the delayed activation function of the monitoring threshold adjustment module 100.

[0116] Such a delay timer 170 may include a first counter, a first comparator and a latch ( Figure 3 (not shown). The first counter includes a trigger input terminal (i.e., input terminal 171 of the delay timer) and a count value output terminal. The trigger input terminal can be connected to the AND gate logic output terminal of the AND gate unit 164. The count value output terminal outputs the current count value of the first counter when the trigger input terminal receives an activation signal. The first comparator may include a comparison input terminal, a set value input terminal, and a match output terminal. The comparison input terminal is connected to the count value output terminal of the first counter. The set value input terminal can receive third input data indicating a delay period of the activation signal. The match output terminal can output a first comparator output signal having a high level when the count value received by the comparison input terminal is equal to the delay period indicated by the third input data received by the set value input terminal. The latch may include a set input terminal and a latch output terminal (i.e., the output terminal 172 of the delay timer), the set input terminal is connected to the matching output terminal, the latch output terminal is connected to the selection line input terminal 115 of the first selector, the selection line input terminal 135 of the second selector, and the selection line input terminal 155 of the third selector, and the latch output terminal can maintain the output of the activation signal of the enabling monitoring threshold adjustment module with a high level as a selection signal when the set input terminal receives the first comparator output signal with a high level.

[0117] Further, in the present application, the delay timer 170 can also implement a function of enabling the function of the monitoring threshold adjustment module 100 within a preset time period. In this case, the delay timer 170 can further include a second counter and a second comparator. The latch can further include a reset input terminal. The second counter includes a trigger input terminal of the second counter and a count value output terminal of the second counter, and the latch output terminal is further connected to the trigger input terminal of the second counter, and the count value output terminal of the second counter outputs a current count value of the second counter in the case that the trigger input terminal of the second counter receives the activation signal. The second comparator includes a comparison input terminal of the second comparator, a set value input terminal of the second comparator, and a match output terminal of the second comparator, the comparison input terminal of the second comparator is connected to the count value output terminal of the second counter, the set value input terminal of the second comparator receives fourth input data indicating a duration of the activation signal, and the match output terminal of the second comparator is connected to the reset input terminal of the latch, and the match output terminal of the second comparator outputs a second comparator output signal with a high level when the count value received by the comparison input terminal of the second comparator is equal to the duration indicated by the fourth input data received by the set value input terminal of the second comparator. Wherein, the latch output terminal can output a reset signal with a low level which is not a selection signal in the case that the reset input terminal receives the second comparator output signal with a high level.

[0118] Thus, when the latch outputs the activation signal with a high level as a selection signal from the latch output terminal after the delay period, the counting function of the second counter can be enabled, and the output of the latch is reset, i.e. no longer outputs the activation signal with a high level as a selection signal, after the duration indicated by the fourth input data. Thus, the function of controlling the duration of enabling the monitoring threshold adjustment module 100 can be implemented. In the present application, the latch can be an SR latch.

[0119] In the present application, the first input data, the second input data, the third input data, and the fourth input data can be output via a user output interface of a user device such as an input and output device of a computer. In the present application, the signals input into each selector, each arithmetic logic unit, the combination logic unit, and the timer, and the signals output from these units can be digital signals.

[0120] In the exemplary embodiment of the present application, the enable control function unit 161 can include an enable signal generator and a logic level converter (not shown). The enable signal generator can be composed of an NAND gate and a NOT gate, for receiving and processing the start signal received from the enable input terminal. When the enable input terminal receives a high level start signal, all inputs of the NAND gate are high level, outputting a low level signal, which is then inverted to a high level by the NOT gate to generate the enable output signal. The logic level converter is used to ensure that the level of the enable output signal matches the input level of the AND gate unit, and the enable signal output terminal is connected to the first AND gate logic input terminal of the AND gate unit, so that the AND gate unit can work normally when the enable control function unit is activated.

[0121] It should be noted that the present application refers to Figures 1 to 3 The various units / components of the monitoring threshold adjustment module 100 described are implemented by integrated circuits, and do not involve any programming process. The selectors, arithmetic logic units (such as multipliers, dividers, adders, subtracters, etc.) and combinations thereof, logic units (enable control function unit, NOT gate unit, AND gate unit) and combinations thereof, counters, comparators, latches, etc. are hardware components known in the field of integrated circuits. In the present application, the selectors can include 2-to-1 data selectors; the multipliers can include any one or more of array multipliers, tree multipliers, parallel multipliers, serial multipliers, Booth-coded multipliers; the dividers can include any one or more of Booth's Algorithm dividers, restoring remainder dividers, and non-restoring remainder dividers; the adders can include any one or more of ripple carry adders, look-ahead carry adders, and square root carry selection adders; the subtracters can include any one or more of half subtracters, full subtracters, and rippling borrow subtracters.

[0122] In addition, as Figures 1 to 3 shown, the present application also provides a monitoring device 300 including the above-described monitoring threshold adjustment module 100 and the above-described monitoring module 200. The configuration and functions of the monitoring device 300 are similar to those of the monitoring threshold adjustment module 100 described above, and will not be described here again. In the present application, the monitoring module 200 can include a software module, a hardware module, or a combination of both. As Figure 3As shown, the monitoring module 200 can also include a first display unit 211 connected to the first monitoring output interface 204, a second display unit 212 connected to the second monitoring output interface 205, a third display unit 213 connected to the third monitoring output interface 206 and a fourth display unit 214 connected to the fourth monitoring output interface 207. Thus, while real-time monitoring is being performed by the monitoring device 300, it is convenient for the staff to observe the real-time status of the operating parameters and possible alarms through the display units. The first display unit 212, the second display unit 212, the third display unit 213 and the fourth display unit 214 can be separate display devices or integrated in one display device.

[0123] It is to be noted that the terms used herein are merely for describing specific embodiments and are not intended to limit exemplary embodiments according to the present application. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be understood that the terms "comprise" and / or "include" when used herein specify the presence of stated features, steps, operations, devices, components and / or combinations thereof.

[0124] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of these terms herein is merely for distinguishing between the similar objects and the use of these terms in the description and the claims of the present application is not to be construed as implying a specific order or chronology between the steps in the process of the present application. The terms "a" and "an" and "the" and "at least one" used in the present application, are used to describe one or more of the items. The term "plurality" is used to describe two or more of the items.

[0125] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A monitoring threshold adjustment module, for automatically adjusting a threshold of a monitoring module (200) for monitoring an operating parameter of a running device, the monitoring module (200) comprising a first monitoring input interface (201), a second monitoring input interface (202), and a first monitoring output interface (204), wherein the first monitoring input interface (201) is connected to an output terminal of the device to receive an analog output signal (Asig(t)) indicating a value of the operating parameter changing over time, the second monitoring input interface (202) is used to receive a first threshold value, the monitoring module (200) converts the analog output signal into a first digital signal (Ds1(t)) indicating the value of the operating parameter changing over time, outputs the first digital signal via the first monitoring output interface, compares a current value of the operating parameter indicated by the first digital signal at a current moment with the first threshold value, and generates an alarm signal only in response to the current value being greater than or equal to the first threshold value, or generates an alarm signal only in response to the current value being less than or equal to the first threshold value, characterized in that: The monitoring threshold adjustment module (100) comprises: a first selector (110), comprising a first data input terminal (111) of the first selector, a second data input terminal (113) of the first selector, a selection line input terminal (115) of the first selector, and a data output terminal (117) of the first selector, wherein the first data input terminal (111) of the first selector is connected to the first monitoring output interface, the data output terminal (117) of the first selector is connected to the second data input terminal (113) of the first selector, the selection line input terminal (115) of the first selector is used to receive an activation signal for enabling the monitoring threshold adjustment module as a selection signal, and the data output terminal (117) of the first selector outputs first output data as a current value of a digital signal received from the first data input terminal (111) of the first selector when the selection line input terminal (115) of the first selector does not receive the selection signal, and outputs second output data as a current value of a digital signal received from the second data input terminal (113) of the first selector when the selection line input terminal (115) of the first selector receives the selection signal; a first arithmetic logic unit (120), comprising a first data input terminal (121) of the first arithmetic logic unit, a second data input terminal (123) of the first arithmetic logic unit, and a data output terminal (125) of the first arithmetic logic unit, wherein the first data input terminal (121) of the first arithmetic logic unit is connected to the data output terminal of the first selector, the second data input terminal (123) of the first arithmetic logic unit receives a first operand, and the data output terminal (125) of the first arithmetic logic unit outputs third output data, wherein the third output data is a result of an operation performed by the first arithmetic logic unit on the data received by the first data input terminal (121) of the first arithmetic logic unit and the first operand received by the second data input terminal (123) of the first arithmetic logic unit; and The second selector (130) comprises a first data input terminal (131) of the second selector, a second data input terminal (133) of the second selector, a selection line input terminal (135) of the second selector, and a data output terminal (137) of the second selector, wherein the first data input terminal (131) of the second selector receives first input data as a preset first initial threshold value, the second data input terminal (133) of the second selector is connected to the data output terminal (125) of the first arithmetic logic unit, and the selection line input terminal (135) of the second selector is used to receive the selection signal for enabling the monitoring threshold adjustment module. An activation signal is received, the data output terminal (137) of the second selector is connected to the second monitoring input interface (202) of the monitoring module, the data output terminal (137) of the second selector outputs the first input data received from the first data input terminal (131) of the second selector when the selection line input terminal (135) of the second selector does not receive the selection signal, and outputs the third output data from the first arithmetic logic unit received from the second data input terminal (133) of the second selector when the selection line input terminal (135) of the second selector receives the selection signal.

2. The monitoring threshold adjustment module according to claim 1, wherein the monitoring module (200) further comprises a second monitoring output interface (205) for outputting the alarm signal, characterized in that: The monitoring threshold adjustment module (100) further includes: A combinational logic unit (160) comprises an enable input terminal (1601), a logic input terminal (1602) and a logic output terminal (1604), wherein the enable input terminal (1601) is used to receive a start signal indicating that the monitoring threshold adjustment module is enabled, the logic input terminal (1602) is connected to the second monitoring output interface (205) of the monitoring module, the logic output terminal (1604) is connected to the selection line input terminal (115) of the first selector and the selection line input terminal (135) of the second selector, and the logic output terminal (1604) outputs the activation signal for enabling the monitoring threshold adjustment module as the selection signal when the enable input terminal (1601) receives the start signal and the logic input terminal (1602) does not receive the alarm signal.

3. The monitoring threshold adjustment module according to claim 1, wherein the monitoring module (200) further comprises a third monitoring input interface (203) for receiving a second threshold, wherein the first threshold is different from the second threshold, and the monitoring module compares the current value of the operating parameter indicated by the first digital signal at the current moment with each of the first threshold and the second threshold, generates a first alarm signal in response to the current value being greater than or equal to the larger value of the first threshold and the second threshold, and generates a second alarm signal in response to the current value being less than or equal to the smaller value of the first threshold and the second threshold, characterized in that The monitoring threshold adjustment module (100) further includes: a second arithmetic logic unit (140), comprising a first data input terminal (141) of the second arithmetic logic unit, a second data input terminal (143) of the second arithmetic logic unit, and a data output terminal (145) of the second arithmetic logic unit, wherein the first data input terminal (141) of the second arithmetic logic unit is connected to the data output terminal (117) of the first selector, the second data input terminal (143) of the second arithmetic logic unit receives a second operand, and the data output terminal (145) of the second arithmetic logic unit outputs fourth output data, wherein the fourth output data is a result of an operation performed by the second arithmetic logic unit on the data received by the first data input terminal (141) of the second arithmetic logic unit and the second operand received by the second data input terminal (143) of the second arithmetic logic unit; and The third selector (150) comprises a first data input terminal (151) of the third selector, a second data input terminal (153) of the third selector, a selection line input terminal (155) of the third selector, and a data output terminal (157) of the third selector, wherein the first data input terminal (151) of the third selector receives second input data indicating a preset second initial threshold value, the second data input terminal (153) of the third selector is connected to the data output terminal (145) of the second arithmetic logic unit, and the selection line input terminal (155) of the third selector is used to receive a signal as a selection signal for enabling the monitoring threshold adjustment module. The activation signal of the block is received, the data output terminal (157) of the third selector is connected to the third monitoring input interface (203), the data output terminal (157) of the third selector outputs the second input data received from the first data input terminal (151) of the third selector when the selection line input terminal (155) of the third selector does not receive the selection signal, and outputs the fourth output data from the second arithmetic logic unit received from the second data input terminal (153) of the third selector when the selection line input terminal (155) of the third selector receives the selection signal.

4. The monitoring threshold adjustment module according to claim 3, wherein the monitoring module further comprises a second monitoring output interface (205) for outputting the first alarm signal having a high level and a third monitoring output interface (206) for outputting the second alarm signal having a high level, wherein: The monitoring threshold adjustment module also includes: A combinational logic unit (160) includes an enable control function unit (161), a first NOT gate unit (162), a second NOT gate unit (163), and an AND gate unit (164). The AND gate unit (164) includes a first AND gate logic input terminal, a second AND gate logic input terminal, a third AND gate logic input terminal and an AND gate logic output terminal. The AND gate logic output terminal is connected to the selection line input terminal (115) of the first selector, the selection line input terminal (135) of the second selector and the selection line input terminal (155) of the third selector. The AND gate logic output terminal outputs the activation signal for enabling the monitoring threshold adjustment module when the signals received by the first AND gate logic input terminal, the second AND gate logic input terminal and the third AND gate logic input terminal are all at high levels. The enable control function unit (161) comprises an enable input terminal and an enable signal output terminal, wherein the enable input terminal is used to receive a start signal indicating to enable the monitoring threshold adjustment module, the enable signal output terminal is connected to the first AND gate logic input terminal of the AND gate unit, and the enable signal output terminal outputs an enable output signal having a high level when the enable input terminal receives the start signal. The first NOT gate unit (162) comprises a first NOT gate unit logic input terminal and a first NOT gate unit logic output terminal, the logic input terminal of the first NOT gate unit is connected to the second monitoring output interface of the monitoring module, and the logic output terminal of the first NOT gate unit outputs a first logic output signal with a high level when the logic input terminal of the first NOT gate unit does not receive the first alarm signal. The second NOT gate unit (163) comprises a logic input terminal of the second NOT gate unit and a logic output terminal of the second NOT gate unit, the logic input terminal of the second NOT gate unit is connected to the third monitoring output interface of the monitoring module, and the logic output terminal of the second NOT gate unit outputs a second logic output signal with a high level when the logic input terminal of the second NOT gate unit does not receive the second alarm signal.

5. The monitoring threshold adjustment module according to claim 4, characterized in that: The monitoring threshold adjustment module (100) further includes: A delay timer (170) includes a first counter, a first comparator and a latch, The first counter includes a trigger input terminal and a count value output terminal, the trigger input terminal is connected to the AND gate logic output terminal of the AND gate unit (164), and the count value output terminal outputs the current count value of the first counter when the trigger input terminal receives the activation signal. The first comparator includes a comparison input terminal, a set value input terminal, and a match output terminal, the comparison input terminal being connected to the count value output terminal of the first counter, the set value input terminal receiving third input data indicating a delay period of the activation signal, and the match output terminal outputting a first comparator output signal having a high level when the count value received by the comparison input terminal is equal to the delay period indicated by the third input data received by the set value input terminal. The latch includes a set input terminal and a latch output terminal, the set input terminal is connected to the matching output terminal, the latch output terminal is connected to the selection line input terminal (115) of the first selector, the selection line input terminal (135) of the second selector and the selection line input terminal (155) of the third selector, and the latch output terminal keeps outputting the activation signal having a high level as the selection signal for enabling the monitoring threshold adjustment module when the set input terminal receives the first comparator output signal having a high level.

6. The monitoring threshold adjustment module according to claim 5, characterized in that: The latch further includes a reset input terminal, and the delay timer (170) further includes a second counter and a second comparator. The second counter includes a trigger input terminal of the second counter and a count value output terminal of the second counter, the latch output terminal is further connected to the trigger input terminal of the second counter, and the count value output terminal of the second counter outputs a current count value of the second counter when the trigger input terminal of the second counter receives the activation signal. The second comparator includes a comparison input terminal of the second comparator, a set value input terminal of the second comparator, and a match output terminal of the second comparator, the comparison input terminal of the second comparator being connected to the count value output terminal of the second counter, the set value input terminal of the second comparator receiving fourth input data indicating a duration of the activation signal, the match output terminal of the second comparator being connected to the reset input terminal of the latch, and the match output terminal of the second comparator outputting a second comparator output signal having a high level when the count value received by the comparison input terminal of the second comparator is equal to the duration indicated by the fourth input data received by the set value input terminal of the second comparator. The latch output terminal outputs a reset signal with a low level that does not serve as the selection signal when the reset input terminal receives the second comparator output signal with a high level.

7. The monitoring threshold adjustment module according to any one of claims 3 to 6, characterized in that: Each of the first arithmetic logic unit and the second arithmetic logic unit includes at least one item from the group consisting of: a multiplier, a divider, an adder, and a subtractor.

8. A monitoring device, characterized in that include: The monitoring threshold adjustment module according to any one of claims 1 to 7; as well as A monitoring module (200) is used to monitor operating parameters of a running device, the monitoring module (200) comprising a first monitoring input interface (201), a second monitoring input interface (202), and a first monitoring output interface (204), the first monitoring input interface being connected to an output end of the device to receive an analog output signal indicating a value of the operating parameter changing over time, the second monitoring input interface being connected to a second selection output terminal of a second selector of the monitoring threshold adjustment module, and the first monitoring output interface being connected to a first data input terminal of a first selector of the monitoring threshold adjustment module. The monitoring module converts the analog output signal into a first digital signal indicating the value of the operating parameter changing over time, outputs the first digital signal via the first monitoring output interface, compares the current value of the operating parameter indicated by the first digital signal at the current moment with the first threshold, and generates an alarm signal only in response to the current value being greater than or equal to the first threshold, or generates an alarm signal only in response to the current value being less than or equal to the first threshold.

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