A patrol inspection system and method based on DCS data acquisition

Abstract

The present invention relates to a patrol inspection system and method based on DCS data collection, the system comprising: a first patrol inspection module, used to collect the actual value of a preset patrol inspection item; the actual value of the preset patrol inspection item is the collected value of the DCS bit number pre-bound to the patrol inspection item and corresponding to the patrol inspection item; an early warning module, used to issue early warning information based on the actual value of the preset patrol inspection item and the preset alarm threshold corresponding to the patrol inspection item after receiving a user confirmation instruction. Compared with the prior art, the patrol inspection system based on DCS data collection of the present invention can quickly confirm the problem and handle it in time to ensure the normal operation of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of distributed control systems, and in particular to an inspection system and method based on DCS data acquisition. Background Art

[0002] The daily production activities of an enterprise are mainly undertaken by internal operators and external operators. Internal operators mainly operate instruments remotely through the distributed control system DCS, monitor and adjust the equipment to ensure the normal operation of production activities. External operators are mainly responsible for daily inspections, sampling, and checking and operating the equipment on site according to the instructions of internal operators to ensure the stable production and safety of chemical equipment.

[0003] At present, during the inspection process, the company's inspection personnel only observe the leakage of the device, check the operating status of the device, and collect the status display (pressure, temperature, liquid level) of related instruments. There is no comparison between the DCS collection value of the instrument and the actual measurement value. Problems with the instrument or DCS cannot be discovered as early as possible. The poor interaction between internal and external operators leads to the inability to quickly handle on-site problems, affecting daily production and even causing more serious consequences. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an inspection system and method based on DCS data acquisition, which solves the technical problems that problems with instruments or DCS cannot be discovered early and the poor interaction between internal and external operators leads to the inability to quickly handle on-site problems.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] The embodiment of the present invention provides a patrol inspection system based on DCS data collection, including:

[0009] The first inspection module is used to collect actual values ​​of pre-set inspection items;

[0010] The actual value of the pre-set inspection item is the collected value of the DCS bit number pre-bound to the inspection item and corresponding to the inspection item;

[0011] The early warning module is used to issue an early warning message based on the actual value of the preset inspection item and the preset alarm threshold corresponding to the inspection item after receiving the user confirmation instruction.

[0012] Preferably, after receiving the user confirmation instruction, the early warning module issues an early warning message based on the actual value of the preset inspection item and the preset alarm threshold corresponding to the inspection item, specifically including:

[0013] The early warning module, after receiving the user confirmation instruction, determines whether the actual value of the preset inspection item exceeds the preset alarm threshold corresponding to the inspection item, and issues an early warning message if the actual value exceeds the alarm threshold.

[0014] Preferably, the inspection system further includes:

[0015] The second inspection module is used to receive the measurement value of the instrument corresponding to each preset inspection item input by the user at the user's observation time.

[0016] Preferably, the inspection system further includes:

[0017] The storage module is used to store the actual values ​​of the preset inspection items collected by the first inspection module and the measurement values ​​of the instruments corresponding to each preset inspection item input by the user at the user's observation time.

[0018] Preferably,

[0019] The early warning module is further used to obtain the actual value of the first preset time period of each inspection item in the storage module, and issue an alarm message according to the actual value of the first preset time period of each inspection item in the storage module and the measurement value of the instrument corresponding to each preset inspection item input by the user at the user's observation time;

[0020] The first preset time period of each inspection item includes a second preset time period before the user observation time corresponding to the measurement value of the inspection item and a third preset time period after the user observation time corresponding to the measurement value of the inspection item.

[0021] Preferably, the early warning module issues an alarm message according to the actual value of the first preset time period of each inspection item in the storage module and the measurement value of the instrument corresponding to each preset inspection item input by the user at the user's observation time, specifically including:

[0022] The early warning module obtains the median of the actual value of the first preset time period of each inspection item in the storage module according to the actual value of the first preset time period of each inspection item;

[0023] Based on the measurement value of the instrument corresponding to each preset inspection item input at the user observation time and the median corresponding to the inspection item, obtain the absolute value of the difference between the measurement value of the instrument corresponding to each preset inspection item input at the user observation time and the median corresponding to the inspection item;

[0024] It is determined whether the absolute value of the difference is within a preset error range corresponding to the inspection item. If the absolute value of the difference is not within the preset error range corresponding to the inspection item, an alarm message is issued.

[0025] Preferably, the inspection system further includes a first generating module;

[0026] The first generating module is used to obtain the fault information of the DCS or measuring instrument submitted by the user, and generate a defect list according to the fault information.

[0027] Preferably, the inspection system further includes a second generation module;

[0028] The second generating module is used to generate a hidden danger list if the measured value is greater than or equal to the alarm threshold, and notify the corresponding person in charge of the hidden danger list via email or SMS.

[0029] Preferably, the inspection system further comprises: a route module;

[0030] The route module is used to generate an inspection route according to the DCS position number.

[0031] On the other hand, this embodiment further provides an inspection method based on DCS data collection, which is a method executed by any of the above inspection systems based on DCS data collection.

[0032] (III) Beneficial effects

[0033] The beneficial effects of the present invention are as follows: the inspection system and method based on DCS data collection of the present invention, the system adopts the first inspection module to collect the actual value of the inspection item set in advance; the actual value of the inspection item set in advance is the collection value of the DCS bit number pre-bound to the inspection item and corresponding to the inspection item; the early warning module is adopted to issue an early warning message based on the actual value of the inspection item set in advance and the alarm threshold set in advance corresponding to the inspection item after receiving the user confirmation instruction. Compared with the prior art, it can quickly confirm the problem and deal with it in time to ensure the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of an inspection system based on DCS data acquisition according to the present invention;

[0035] Figure 2 Schematic diagram of the inspection system based on DCS data collection in the first embodiment of the present invention;

[0036] Figure 3 A schematic diagram of a flow chart of a patrol inspection system based on DCS data acquisition in use according to the present invention;

[0037] Figure 4 The present invention is another flow chart of a patrol inspection system based on DCS data acquisition when in use. DETAILED DESCRIPTION

[0038] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0039] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0040] Embodiment 1

[0041] See also Figure 1 This embodiment provides an inspection system based on DCS data collection, including:

[0042] The first inspection module is used to collect actual values ​​of pre-set inspection items.

[0043] The actual value of the preset inspection item is the collected value of the DCS number that is pre-bound to the inspection item and corresponds to the inspection item.

[0044] The early warning module is used to issue an early warning message based on the actual value of the preset inspection item and the preset alarm threshold corresponding to the inspection item after receiving the user confirmation instruction.

[0045] In the actual application of this embodiment, after receiving the user confirmation instruction, the early warning module issues an early warning message based on the actual value of the preset inspection item and the preset alarm threshold corresponding to the inspection item, specifically including:

[0046] After receiving the user confirmation instruction, the early warning module determines whether the actual value of the preset inspection item exceeds the preset alarm threshold corresponding to the inspection item, and if so, issues an early warning message.

[0047] See also Figure 2 In the actual application of this embodiment, the inspection system also includes: a second inspection module, which is used to receive the measurement value of the instrument corresponding to each preset inspection item input by the user at the user's observation time.

[0048] See also Figure 2 In the actual application of this embodiment, the inspection system also includes: a storage module, which is used to store the actual values ​​of the pre-set inspection items collected by the first inspection module and the measurement values ​​of the instrument corresponding to each pre-set inspection item input by the user at the user's observation time.

[0049] In the actual application of this embodiment, the early warning module is also used to obtain the actual value of the first preset time period of each inspection item in the storage module, and issue an alarm message based on the actual value of the first preset time period of each inspection item in the storage module and the measurement value of the instrument corresponding to the inspection item input by the user for each pre-set inspection item at the user's observation time.

[0050] The first preset time period of each inspection item includes a second preset time period before the user observation time corresponding to the measurement value of the inspection item and a third preset time period after the user observation time corresponding to the measurement value of the inspection item.

[0051] In the actual application of this embodiment, the second preset time period is 30 seconds.

[0052] The third preset time period is 30 seconds.

[0053] In the practical application of this embodiment, the early warning module issues an alarm message according to the actual value of the first preset time period of each inspection item in the storage module and the measurement value of the instrument corresponding to each preset inspection item input by the user at the user's observation time, specifically including:

[0054] The early warning module obtains the median of the actual value of the first preset time period of each inspection item according to the actual value of the first preset time period of each inspection item in the storage module.

[0055] Based on the measurement value of the instrument corresponding to each preset inspection item input at the user observation time and the median corresponding to the inspection item, obtain the absolute value of the difference between the measurement value of the instrument corresponding to each preset inspection item input at the user observation time and the median corresponding to the inspection item;

[0056] It is determined whether the absolute value of the difference is within a preset error range corresponding to the inspection item. If the absolute value of the difference is not within the preset error range corresponding to the inspection item, an alarm message is issued.

[0057] In this embodiment, the error range corresponding to the inspection item is 5% of the range of the instrument corresponding to the inspection item.

[0058] See also Figure 2 In the actual application of this embodiment, the inspection system also includes: a first generating module, which is used to obtain the fault information of the DCS or measuring instrument submitted by the user, and generate a defect list according to the fault information.

[0059] See also Figure 2 In the actual application of this embodiment, the inspection system also includes: a second generation module, which is used to generate a hidden danger list when the error exceeds the allowable upper limit, and notify the corresponding person in charge of the hidden danger list via email or text message.

[0060] In the actual application of this embodiment, the inspection system further includes: a route module; the route module is used to generate an inspection route according to the DCS position number.

[0061] In addition, this embodiment further provides an inspection method based on DCS data collection, characterized in that the method is a method executed by any of the above-mentioned inspection systems based on DCS data collection.

[0062] The inspection system based on DCS data collection of the present invention adopts a first inspection module to collect the actual value of the inspection item set in advance; the actual value of the inspection item set in advance is the collected value of the DCS bit number pre-bound to the inspection item and corresponding to the inspection item; and the early warning module is adopted to issue an early warning message based on the actual value of the inspection item set in advance and the alarm threshold set in advance corresponding to the inspection item after receiving the user confirmation instruction. Compared with the prior art, it can quickly confirm the problem and handle it in time to ensure the normal operation of the device.

[0063] Embodiment 2

[0064] In actual application, when the inspection system based on DCS data collection provided in the first embodiment is used, the inspection personnel carry a PDA to inspect on-site at the enterprise (at this time, the handheld PDA is connected to the inspection system based on DCS data collection in communication). Figure 3 , the process is as follows:

[0065] In the actual application of the inspection system based on DCS data collection in this example, the DCS bit numbers corresponding to the inspection items are collected in advance, and the corresponding relationship between the inspection items and the collection values ​​of the DCS bit numbers is set.

[0066] When the user confirms that the actual value of the pre-set inspection item collected by the first inspection module of the inspection system based on DCS data collection is correct, (the external operator can view the real-time value and historical trend of the current position number on the mobile terminal, and communicate and confirm with the internal operator to discover the fault of DCS or on-site measuring instruments in advance and deal with it in time. If it cannot be handled at that time, a defect list is generated when the inspection task is submitted to track the defect repair status.) The inspection personnel triggers the confirmation instruction in the inspection system based on DCS data collection. After the system receives the user's confirmation instruction, the early warning module in the inspection system based on DCS data collection issues a warning message based on the actual value of the pre-set inspection item and the pre-set alarm threshold corresponding to the inspection item.

[0067] Under the premise of allowable error and accuracy, the upper limit of the error between the actual measurement value and the DCS bit number acquisition value is usually preset to 5% of the range.

[0068] Alternatively, see Figure 4 When there is no communication connection between the handheld PDA and the inspection system based on DCS data collection, the inspection personnel will publicly download the inspection task in advance and cache it in the PDA, and then go to the site for inspection with the PDA. After the inspection task is completed, the inspection task is uploaded to an environment with a network. The system will obtain the historical values ​​of the bit numbers before and after the actual instrument measurement, sort them, obtain the median, and conduct internal and external operation comparison analysis. If the error exceeds the upper limit, the system will generate a hidden danger list and send the abnormal situation to the relevant person in charge through email, SMS, etc. for processing.

[0069] This embodiment binds the inspection items and DCS bit numbers, and presets alarm thresholds for measurement values ​​and DSC acquisition values, which can assist inspection personnel in making more accurate judgments during the inspection process, discover problems with the DCS or field instruments in advance, and handle them in a timely manner.

[0070] Since the system described in the above embodiment of the present invention is a system used to implement the method of the above embodiment of the present invention, a person skilled in the art can understand the specific structure and deformation of the system based on the method described in the above embodiment of the present invention, and thus will not be described in detail here. All systems used in the method of the above embodiment of the present invention belong to the scope of protection of the present invention.

[0071] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0072] The present invention is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present invention. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions.

[0073] It should be noted that in the claims, any reference numerals placed between brackets shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention may be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In the claims enumerating several means, several of these means may be embodied by the same hardware. The use of the words first, second, third, etc., is for convenience of expression only and does not indicate any order. These words may be understood as part of the component name.

[0074] In addition, it should be noted that, in the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0075] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments after knowing the basic creative concept. Therefore, the claims should be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0076] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention should also include these modifications and variations.

Claims

1. A patrol inspection system based on DCS data acquisition, characterized in that: include: The first inspection module is used to collect actual values ​​of pre-set inspection items; The actual value of the pre-set inspection item is the collected value of the DCS bit number pre-bound to the inspection item and corresponding to the inspection item; An early warning module, configured to issue an early warning message based on the actual value of the preset inspection item and the preset alarm threshold value corresponding to the inspection item after receiving a confirmation instruction from the user; The inspection system also includes: A storage module, used to store the actual values ​​of the preset inspection items collected by the first inspection module and the measurement values ​​of the instruments corresponding to each preset inspection item input by the user at the user's observation time; The early warning module is further used to obtain the actual value of the first preset time period of each inspection item in the storage module, and issue an alarm message according to the actual value of the first preset time period of each inspection item in the storage module and the measurement value of the instrument corresponding to each preset inspection item input by the user at the user's observation time; The first preset time period of each inspection item includes a second preset time period before the user observation time corresponding to the measurement value of the inspection item and a third preset time period after the user observation time corresponding to the measurement value of the inspection item; The early warning module issues an alarm message according to the actual value of the first preset time period of each inspection item in the storage module and the measurement value of the instrument corresponding to each preset inspection item input by the user at the user's observation time, specifically including: The early warning module obtains the median of the actual value of the first preset time period of each inspection item in the storage module according to the actual value of the first preset time period of each inspection item; Based on the measurement value of the instrument corresponding to each preset inspection item input at the user observation time and the median corresponding to the inspection item, obtain the absolute value of the difference between the measurement value of the instrument corresponding to each preset inspection item input at the user observation time and the median corresponding to the inspection item; It is determined whether the absolute value of the difference is within a preset error range corresponding to the inspection item. If the absolute value of the difference is not within the preset error range corresponding to the inspection item, an alarm message is issued.

2. The inspection system according to claim 1, characterized in that: After receiving the user confirmation instruction, the early warning module issues an early warning message based on the actual value of the preset inspection item and the preset alarm threshold corresponding to the inspection item, specifically including: The early warning module, after receiving the user confirmation instruction, determines whether the actual value of the preset inspection item exceeds the preset alarm threshold corresponding to the inspection item, and issues an early warning message if the actual value exceeds the alarm threshold.

3. The inspection system according to claim 2, characterized in that: The inspection system also includes: The second inspection module is used to receive the measurement value of the instrument corresponding to each preset inspection item input by the user at the user's observation time.

4. The inspection system according to claim 3, characterized in that: The inspection system also includes a first generation module; The first generating module is used to obtain the fault information of the DCS or measuring instrument submitted by the user, and generate a defect list according to the fault information.

5. The inspection system according to claim 4, characterized in that: The inspection system also includes a second generation module; The second generating module is used to generate a hidden danger list if the measured value is greater than or equal to the alarm threshold, and notify the corresponding person in charge of the hidden danger list via email or SMS.

6. The inspection system according to claim 1, characterized in that: The inspection system further comprises: a route module; The route module is used to generate an inspection route according to the DCS position number.

7. A patrol inspection method based on DCS data collection, characterized in that: The method is a method executed by the inspection system based on DCS data acquisition as described in any one of claims 1-6.

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