Thermal equipment inspection method, device and equipment based on DCS (Distributed Control System)

Abstract

The invention provides a thermal equipment inspection method, device and equipment based on a DCS (Distributed Control System), and the method comprises the steps: obtaining a control signal of thermal equipment in the DCS; in response to existence of at least one abnormal signal in the control signals, storing the abnormal signal, and displaying the abnormal signal on a control interface of the DCS; the control signals of the thermal equipment are acquired from the DCS, the abnormal signals are stored under the condition that the abnormal signals exist in the control signals, and the abnormal signals are displayed on the control interface of the DCS; therefore, the inspection efficiency of the thermal equipment is improved, the thermal equipment is timely repaired and replaced when going wrong, the thermal equipment is in a good operation state, the service life of the equipment is prolonged, and the production cost is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of thermal equipment, and in particular to a thermal equipment inspection method, device, electronic equipment, storage medium and product based on DCS. Background Art

[0002] In the production process of thermal power plants, inspection of thermal equipment is a vital daily task. By conducting regular comprehensive inspection and maintenance of thermal equipment, abnormalities and damage of thermal equipment can be discovered and handled in a timely manner, improving the availability and reliability of thermal equipment; as well as discovering potential safety hazards in thermal equipment, avoiding accidents caused by equipment failure, line aging and other problems. At the same time, regular inspection and maintenance can help to repair and replace thermal equipment in a timely manner when problems occur, ensuring that thermal equipment is in good operating condition, extending equipment life and reducing production costs. Summary of the invention

[0003] The present disclosure provides a thermal equipment inspection method, device, electronic device, storage medium and product based on DCS to solve the problems in the related art.

[0004] A first aspect of the present disclosure provides a thermal equipment inspection method based on DCS, the method comprising:

[0005] Obtain control signals of thermal equipment in distributed control system DCS;

[0006] In response to at least one abnormal signal existing in the control signal, the abnormal signal is stored and displayed on a control interface of the DCS.

[0007] In one embodiment, the control signal includes a control parameter signal and a control switch signal, the control parameter signal includes a liquid level signal and a flow signal of the thermal equipment, and the step of obtaining the control signal of the thermal equipment in the distributed control system DCS includes:

[0008] Obtaining liquid level signals, flow signals and control switch quantity signals of thermal equipment in the DCS;

[0009] The liquid level signal, the flow rate signal and the control switch quantity signal are converted into a liquid level digital signal, a flow rate digital signal and a control switch quantity digital signal.

[0010] In one embodiment, in response to at least one abnormal signal existing in the control signal, storing the abnormal signal comprises:

[0011] Compare the liquid level digital signal, the flow rate digital signal and the control switch quantity digital signal with a preset liquid level digital signal threshold, a preset flow rate digital signal threshold and a preset control switch quantity digital signal threshold to determine whether there is at least one abnormal signal in the liquid level digital signal, the flow rate digital signal and the control switch quantity digital signal;

[0012] If the judgment result is yes, obtaining the signal occurrence timestamp of the abnormal signal;

[0013] The abnormal signal and the corresponding signal occurrence timestamp are stored in the database of the DCS.

[0014] In one embodiment, before obtaining the control signal of the thermal equipment in the distributed control system DCS, the method further includes:

[0015] Sending an inspection instruction to the DCS, the inspection instruction is used to obtain a control signal of a thermal equipment in a distributed control system DCS, and in response to at least one abnormal signal in the control signal, storing the abnormal signal and displaying the abnormal signal on a control interface of the DCS.

[0016] The second embodiment of the present disclosure provides a thermal equipment inspection device based on DCS, the device comprising:

[0017] Signal acquisition module, used to obtain control signals of thermal equipment in distributed control system DCS;

[0018] The signal processing module is used for storing the abnormal signal in response to at least one abnormal signal existing in the control signal, and displaying the abnormal signal on the control interface of the DCS.

[0019] In one embodiment, the signal processing module includes a logic judgment unit, an RS trigger unit, a storage unit and a display unit, the signal output end of the signal processing module is connected to the signal input end of the logic judgment unit, the signal output end of the logic judgment unit is connected to the signal input end of the RS trigger unit, and the signal output end of the RS trigger unit is connected to the signal input ends of the storage unit and the display unit;

[0020] The logic judgment unit is used to judge whether there is at least one abnormal signal in the control signal;

[0021] The RS trigger unit is used to maintain the abnormal signal when there is at least one abnormal signal in the control signal;

[0022] The storage unit is used to store the abnormal signal and the corresponding signal occurrence timestamp in the database of the DCS;

[0023] The display unit is used to display the abnormal signal on the control interface of the DCS.

[0024] In one embodiment, the device further comprises a reset module;

[0025] The reset module is used to send an inspection instruction to the DCS; the inspection instruction is used to obtain a control signal of a thermal equipment in a distributed control system DCS, and in response to at least one abnormal signal in the control signal, store the abnormal signal and display the abnormal signal on a control interface of the DCS.

[0026] A third aspect of the present disclosure provides an electronic device, including:

[0027] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method described in the embodiment of the first aspect of the present disclosure.

[0028] The fourth aspect embodiment of the present disclosure proposes a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a computer to execute the method described in the first aspect embodiment of the present disclosure.

[0029] A fifth aspect embodiment of the present disclosure provides a computer program product, including a computer program, which implements the method described in the first aspect embodiment of the present disclosure when executed by a processor.

[0030] In summary, the present disclosure proposes a thermal equipment inspection method, device, electronic device, storage medium and product based on DCS. The method includes: obtaining a control signal of a thermal equipment in a distributed control system DCS; in response to the presence of at least one abnormal signal in the control signal, storing the abnormal signal, and displaying the abnormal signal on a control interface of the DCS.

[0031] The DCS-based thermal equipment inspection method provided by the present disclosure can obtain the control signal of the thermal equipment from the DCS, and when there is an abnormal signal in the control signal, store the abnormal signal and display the abnormal signal on the control interface of the DCS, thereby speeding up the inspection efficiency of the thermal equipment, ensuring that the thermal equipment is repaired and replaced in time when problems occur, ensuring that the thermal equipment is in a good operating state, extending the equipment life, and reducing production costs.

[0032] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description are used to explain the principles of the present disclosure, and do not constitute improper limitations on the present disclosure.

[0034] Figure 1 A schematic diagram of a flow chart of a thermal equipment inspection method based on DCS provided in an embodiment of the present disclosure;

[0035] Figure 2 A flowchart of a method for obtaining a control signal provided in an embodiment of the present disclosure;

[0036] Figure 3 A flowchart of a method for storing abnormal signals provided by an embodiment of the present disclosure;

[0037] Figure 4 A schematic diagram of the structure of a thermal equipment inspection device based on DCS provided in an embodiment of the present disclosure;

[0038] Figure 5 A schematic diagram of the structure of a signal processing module provided in an embodiment of the present disclosure;

[0039] Figure 6 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0041] In the production process of thermal power plants, inspection of thermal equipment is a vital daily task. By conducting regular comprehensive inspection and maintenance of thermal equipment, abnormalities and damage of thermal equipment can be discovered and handled in a timely manner, improving the availability and reliability of thermal equipment; as well as discovering potential safety hazards in thermal equipment, avoiding accidents caused by equipment failure, line aging and other problems. At the same time, regular inspection and maintenance can help to repair and replace thermal equipment in a timely manner when problems occur, ensuring that thermal equipment is in good operating condition, extending equipment life and reducing production costs.

[0042] In related technologies, thermal equipment inspection is mainly carried out in the following two ways:

[0043] First, the inspection of thermal equipment relies on manual inspection, such as pre-specifying a manual inspection system, including inspection time and inspection content, and regularly arranging staff to inspect the status of thermal equipment; however, this method will consume a lot of manpower and material resources, and the inspection efficiency is too low.

[0044] Second, thermal equipment relies on intelligent inspections, but traditional intelligent inspection methods require a large amount of database support and have high inspection costs.

[0045] In order to solve the defects in the related art, the present invention obtains the control signal of the thermal equipment from the distributed control system (DCS), and when there is an abnormal signal in the control signal, stores the abnormal signal and displays the abnormal signal on the control interface of the DCS, thereby speeding up the inspection efficiency of the thermal equipment, ensuring that the thermal equipment is repaired and replaced in time when problems occur, ensuring that the thermal equipment is in good operating condition, extending the equipment life, and reducing production costs.

[0046] The present disclosure is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] like Figure 1 As shown, Figure 1 The following is a flow chart of a thermal equipment inspection method based on DCS provided in an embodiment of the present disclosure. The thermal equipment inspection method based on DCS provided in an embodiment of the present disclosure comprises the following steps:

[0048] Step 101, obtaining a control signal of a thermal equipment in a distributed control system DCS;

[0049] In one embodiment, the control signal includes a control parameter signal and a control switch quantity signal, and the control parameter signal includes a liquid level signal and a flow rate signal of the thermal equipment.

[0050] In one embodiment, the liquid level signal of the thermal equipment may include liquid level signals in equipment such as a feed water pump, a steam drum in a boiler, a deaerator and a pipeline, and the flow signal of the thermal equipment includes flow signals in equipment such as a deaerator and a feed water pump.

[0051] In one embodiment, the control switch signal may include a control switch signal of a feedwater pump, a recirculation door, etc.

[0052] Step 102: In response to at least one abnormal signal existing in the control signal, the abnormal signal is stored and displayed on a control interface of the DCS.

[0053] In one embodiment, the liquid level signal and the flow signal are usually analog signals. Taking the liquid level signal as an example, the liquid level signal can be converted into a digital signal through an analog-to-digital converter, for example, 0 represents a normal liquid level signal, and 1 represents an abnormal liquid level signal, wherein the abnormal liquid level signal includes a noisy liquid level signal, a liquid level signal with abnormal fluctuations, and a liquid level signal with large deviations, etc. The control switch signal is usually a digital signal, for example, 0 represents reducing the opening of the recirculation door, and 1 represents increasing the opening of the recirculation door.

[0054] In summary, the present disclosure proposes a thermal equipment inspection method based on DCS, including: obtaining a control signal of a thermal equipment in a distributed control system DCS; in response to at least one abnormal signal in the control signal, storing the abnormal signal, and displaying the abnormal signal on a control interface of the DCS.

[0055] The DCS-based thermal equipment inspection method provided by the present disclosure can obtain the control signal of the thermal equipment from the DCS, and when there is an abnormal signal in the control signal, store the abnormal signal and display the abnormal signal on the control interface of the DCS, thereby speeding up the inspection efficiency of the thermal equipment, ensuring that the thermal equipment is repaired and replaced in time when problems occur, ensuring that the thermal equipment is in a good operating state, extending the equipment life, and reducing production costs.

[0056] In one embodiment, if Figure 2 As shown, step 101 includes:

[0057] Step 201, obtaining the liquid level signal, flow signal and control switch value signal of the thermal equipment in the DCS;

[0058] In one embodiment, the liquid level signal, flow signal and control switch value signal of the thermal equipment in the DCS can be obtained through an application programming interface (API).

[0059] In one embodiment, the liquid level signal, flow signal and control switch value signal of the thermal equipment in the DCS may also be acquired from the database of the DCS through an acquisition instruction.

[0060] Step 202, converting the liquid level signal, the flow rate signal and the control switch quantity signal into a liquid level digital signal, a flow rate digital signal and a control switch quantity digital signal.

[0061] In one embodiment, an analog-to-digital conversion module may be used to convert the liquid level signal, the flow rate signal and the control switch quantity signal into a liquid level digital signal, a flow rate digital signal and a control switch quantity digital signal.

[0062] In one embodiment, before converting the liquid level signal, the flow signal and the control switch quantity signal into a liquid level digital signal, a flow digital signal and a control switch quantity digital signal, the liquid level signal, the flow signal and the control switch quantity signal may be filtered first.

[0063] In one embodiment, if Figure 3 As shown, in step 102, in response to at least one abnormal signal existing in the control signal, storing the abnormal signal includes:

[0064] Step 301, comparing the liquid level digital signal, the flow rate digital signal and the control switch quantity digital signal with a preset liquid level digital signal threshold, a preset flow rate digital signal threshold and a preset control switch quantity digital signal threshold, to determine whether there is at least one abnormal signal in the liquid level digital signal, the flow rate digital signal and the control switch quantity digital signal;

[0065] In one embodiment, the comparison algorithm preset in the DCS can be called to compare the liquid level digital signal, the flow digital signal and the control switch quantity digital signal with the preset liquid level digital signal threshold, the preset flow digital signal threshold and the preset control switch quantity digital signal threshold.

[0066] In one embodiment, a comparator may be used to compare the liquid level digital signal, the flow digital signal and the control switch quantity digital signal with a preset liquid level digital signal threshold, a preset flow digital signal threshold and a preset control switch quantity digital signal threshold.

[0067] Step 302: if the judgment result is yes, obtain the signal occurrence timestamp of the abnormal signal;

[0068] In one embodiment, the signal occurrence timestamp of the abnormal signal refers to the time when the corresponding abnormal signal of the thermal equipment occurs.

[0069] Step 303: store the abnormal signal and the corresponding timestamp of the signal occurrence in the database of the DCS.

[0070] In one embodiment, the type of the DCS database used to store the abnormal signal may be a relational database, such as a MySQL database, an Oracle database, etc.; the type of the DCS database used to store the abnormal signal may also be a non-relational database, such as a MongoDB database, a Redis database, etc.

[0071] In one embodiment, before step 101, the method further includes:

[0072] Sending an inspection instruction to the DCS, the inspection instruction is used to obtain a control signal of a thermal equipment in a distributed control system DCS, and in response to at least one abnormal signal in the control signal, storing the abnormal signal and displaying the abnormal signal on a control interface of the DCS.

[0073] In one embodiment, the staff can manually issue the inspection instruction by clicking the inspection button set on the display interface of the DCS, or can automatically issue the inspection instruction according to a preset inspection cycle, or can combine the two. When the inspection instruction needs to be issued manually, the staff can manually issue the inspection instruction regardless of whether the inspection instruction is automatically issued.

[0074] In one embodiment, if there is an abnormal signal, after the abnormal signal is displayed on the display interface of the DCS, the staff needs to manually click the reset button on the display interface of the DCS before issuing an inspection instruction.

[0075] In order to implement the thermal equipment inspection method based on DCS provided in the embodiment of the present disclosure, the embodiment of the present disclosure also provides a thermal equipment inspection device based on DCS, such as Figure 4 shown. Figure 4 The schematic diagram of the structure of the thermal equipment inspection device based on DCS provided in the embodiment of the present disclosure, the thermal equipment inspection device based on DCS 400 comprises:

[0076] The signal acquisition module 401 is used to acquire the control signal of the thermal equipment in the distributed control system DCS;

[0077] The signal processing module 402 is configured to store the abnormal signal in response to at least one abnormal signal existing in the control signal, and display the abnormal signal on the control interface of the DCS.

[0078] In one embodiment, if Figure 5 As shown, the signal processing module 402 includes a logic judgment unit 501, an RS trigger unit 502, a storage unit 503 and a display unit 504, the signal output end of the signal processing module 402 is connected to the signal input end of the logic judgment unit 501, the signal output end of the logic judgment unit 501 is connected to the signal input end of the RS trigger unit 502, and the signal output end of the RS trigger unit 502 is connected to the signal input ends of the storage unit 503 and the display unit 504;

[0079] The logic judgment unit 501 is used to judge whether there is at least one abnormal signal in the control signal;

[0080] The RS trigger unit 502 is used for maintaining the abnormal signal when there is at least one abnormal signal in the control signal;

[0081] The storage unit 503 is used to store the abnormal signal and the corresponding signal occurrence timestamp in the database of the DCS;

[0082] The display unit 504 is used to display the abnormal signal on the control interface of the DCS.

[0083] In one embodiment, the DCS-based thermal equipment inspection device 400 further includes a reset module;

[0084] The reset module is used to send an inspection instruction to the DCS; the inspection instruction is used to obtain a control signal of a thermal equipment in a distributed control system DCS, and in response to at least one abnormal signal in the control signal, store the abnormal signal and display the abnormal signal on a control interface of the DCS.

[0085] It should be noted that: the thermal equipment inspection device based on DCS provided in the above embodiment only uses the division of the above program modules as an example when performing thermal equipment inspection based on DCS. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the thermal equipment inspection device based on DCS is divided into different program modules to complete all or part of the processing described above. In addition, the thermal equipment inspection device based on DCS provided in the above embodiment and the thermal equipment inspection method embodiment based on DCS provided in the embodiment of the present disclosure belong to the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0086] Figure 6 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present disclosure is shown in FIG. Figure 6 As shown, the electronic device 600 includes at least one processor 602; and a memory 601 that is communicatively connected to the at least one processor 602; wherein the memory 601 stores instructions that can be executed by the at least one processor 602, and the instructions are executed by the at least one processor 602 to implement the steps of the DCS-based thermal equipment inspection method described in the embodiment of the present disclosure.

[0087] Optionally, the electronic device may specifically be a DCS-based thermal equipment inspection device of an embodiment of the present application, and the electronic device may implement the corresponding processes implemented by the DCS-based thermal equipment inspection device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0088] It is understood that the electronic device also includes a communication interface 603. The various components in the electronic device are coupled together through a bus system 604. It is understood that the bus system 604 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 604 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 6 Various buses are labeled as bus system 604 .

[0089] It can be understood that the memory 601 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), direct memory bus random access memory (DRRAM). The memory 601 described in the embodiments of the present invention is intended to include but is not limited to these and any other suitable types of memory.

[0090] The method disclosed in the above embodiment of the present disclosure can be applied to the processor 602, or implemented by the processor 602. The processor 602 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 602 or the instruction in the form of software. The above processor 602 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 602 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 601, and the processor 602 reads the information in the memory 601 and completes the steps of the above method in combination with its hardware.

[0091] In an exemplary embodiment, the electronic device may be implemented by one or more application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, microprocessors, or other electronic components to execute the aforementioned method.

[0092] The embodiment of the present disclosure also provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable the computer to implement the steps of the DCS-based thermal equipment inspection method described in the embodiment of the present disclosure when executed.

[0093] The embodiment of the present disclosure further provides a computer program product, characterized in that it includes a computer program, and when the computer program is executed by a processor, the steps of the DCS-based thermal equipment inspection method described in the embodiment of the present disclosure are implemented.

[0094] Optionally, the computer-readable storage medium can be applied to the DCS-based thermal equipment inspection device in the embodiments of the present application, and the computer instructions enable the computer to execute the corresponding processes implemented by the DCS-based thermal equipment inspection device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0095] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0096] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0097] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0098] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above-mentioned method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium, which, when executed, executes the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, disks or optical disks.

[0099] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

[0100] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A thermal equipment inspection method based on DCS, characterized in that: include: Obtain control signals of thermal equipment in distributed control system DCS; In response to at least one abnormal signal existing in the control signal, the abnormal signal is stored and displayed on a control interface of the DCS.

2. The method according to claim 1, characterized in that The control signal includes a control parameter signal and a control switch signal, and the control parameter signal includes a liquid level signal and a flow signal of the thermal equipment. The method of obtaining the control signal of the thermal equipment in the distributed control system DCS includes: Obtaining liquid level signals, flow signals and control switch quantity signals of thermal equipment in the DCS; The liquid level signal, the flow rate signal and the control switch quantity signal are converted into a liquid level digital signal, a flow rate digital signal and a control switch quantity digital signal.

3. The method according to claim 2, characterized in that In response to at least one abnormal signal existing in the control signal, storing the abnormal signal comprises: Compare the liquid level digital signal, the flow rate digital signal and the control switch quantity digital signal with a preset liquid level digital signal threshold, a preset flow rate digital signal threshold and a preset control switch quantity digital signal threshold to determine whether there is at least one abnormal signal in the liquid level digital signal, the flow rate digital signal and the control switch quantity digital signal; If the judgment result is yes, obtaining the signal occurrence timestamp of the abnormal signal; The abnormal signal and the corresponding signal occurrence timestamp are stored in the database of the DCS.

4. The method according to claim 1, characterized in that Before obtaining the control signal of the thermal equipment in the distributed control system DCS, the method further includes: Sending an inspection instruction to the DCS, the inspection instruction is used to obtain a control signal of a thermal equipment in a distributed control system DCS, and in response to at least one abnormal signal in the control signal, storing the abnormal signal and displaying the abnormal signal on a control interface of the DCS.

5. A thermal equipment inspection device based on DCS, characterized in that: include: Signal acquisition module, used to obtain control signals of thermal equipment in distributed control system DCS; The signal processing module is used for storing the abnormal signal in response to at least one abnormal signal existing in the control signal, and displaying the abnormal signal on the control interface of the DCS.

6. The device according to claim 5, characterized in that The signal processing module comprises a logic judgment unit, an RS trigger unit, a storage unit and a display unit, wherein the signal output end of the signal processing module is connected to the signal input end of the logic judgment unit, the signal output end of the logic judgment unit is connected to the signal input end of the RS trigger unit, and the signal output end of the RS trigger unit is connected to the signal input ends of the storage unit and the display unit; The logic judgment unit is used to judge whether there is at least one abnormal signal in the control signal; The RS trigger unit is used to maintain the abnormal signal when there is at least one abnormal signal in the control signal; The storage unit is used to store the abnormal signal and the corresponding signal occurrence timestamp in the database of the DCS; The display unit is used to display the abnormal signal on the control interface of the DCS.

7. The device according to claim 5, characterized in that The device also includes a reset module; The reset module is used to send an inspection instruction to the DCS; the inspection instruction is used to obtain a control signal of a thermal equipment in a distributed control system DCS, and in response to at least one abnormal signal in the control signal, store the abnormal signal and display the abnormal signal on a control interface of the DCS.

8. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 4.

9. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 4.

10. A computer program product, characterized in that A computer program is included which, when executed by a processor, implements the method according to any one of claims 1 to 4.

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