Protection pressing plate operation monitoring management system

Abstract

The invention discloses a protection pressing plate operation monitoring management system, which relates to the technical field of protection pressing plate supervision and comprises a protection pressing plate, a resistance module, a voltage monitoring module, a current monitoring module, a matching recording module, a judgment module, a monitoring module and an image analysis module. The protection pressing plates and the resistor modules are in one-to-one correspondence and are in circuit series connection with each other; the voltage monitoring module is used for monitoring voltages at the two ends of the protection pressing plate and the resistor module respectively; the current monitoring module is used for monitoring current passing through the protection pressing plate and the resistor module. According to the protection pressing plate operation monitoring management system, whether the protection pressing plate of an operation target can be operated or not is judged in the process that a worker carries out input and push-out operation on the protection pressing plate, if operation cannot be carried out, the worker is reminded to stop operation in time, and influence on equipment operation is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of protective pressure plate supervision, and in particular to a protective pressure plate operation monitoring and management system. Background Art

[0002] A protective pressure plate, also known as a protective link or tripping pressure plate, serves as the bridge and link between the protective device and the external wiring. It is crucial for the proper functioning of the protective device and its tripping outputs. Depending on where the pressure plate connects to the protective device's secondary circuit, it can be categorized as either a protective function pressure plate or a tripping pressure plate. The protective function pressure plate implements certain protective device functions (such as enabling and disabling primary protection, distance protection, and zero-sequence protection).

[0003] The invention patent, publication number CN113096120A, discloses a method and system for identifying the deployment and retraction status of a protective pressure plate. The method includes: marking the main area of ​​the protective pressure plate and the area where the active block of the protective pressure plate is located in a template image; detecting the image of the current protective pressure plate, and marking the main area of ​​the protective pressure plate and the area where the active block of the protective pressure plate is located in the image of the current protective pressure plate according to a template matching algorithm; processing the marked image of the current protective pressure plate to obtain a binary image; determining the proportion of pixels with a pixel value of 1 in the main area of ​​the protective pressure plate in the binary image; if the proportion of pixels with a pixel value of 1 in the main area of ​​the protective pressure plate is less than a first preset threshold, determining that the current deployment and retraction status of the protective pressure plate is abnormal. The system can automatically identify the status of the protective pressure plate under various forms and shooting conditions, greatly improving the versatility and robustness of recognition.

[0004] The above-mentioned existing technology requires the use of video surveillance to monitor the protective pressure plate in real time, and to judge the insertion and retraction status of the protective pressure plate by the position of the protective pressure plate. However, in the actual use of the protective pressure plate, the potential at both ends of the protective pressure plate needs to be measured first to determine whether the protective pressure plate can be inserted or pushed. In addition, for multiple and various types of protective pressure plates, there are certain requirements for the order of insertion and retraction. It is necessary to prevent mistakes in inserting and retracting the protective pressure plate, which may have an adverse effect on the operation of related equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide a protective pressure plate operation monitoring and management system to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a protection pressure plate operation monitoring and management system, comprising a protection pressure plate, a resistance module, a voltage monitoring module, a current monitoring module, a matching recording module, a judgment module, a monitoring module, and an image analysis module;

[0007] There are several pairs of protection pressure plates and resistance modules, and the protection pressure plates correspond to the resistance modules one by one and are connected in series.

[0008] The voltage monitoring module is used to monitor the voltages at both ends of the protection pressure plate and the resistance module respectively;

[0009] The current monitoring module is used to monitor the current passing through the protection pressure plate and the resistance module respectively;

[0010] The matching record module is used to record the resistance value, position and purpose of each pair of protection pressure plates and resistance modules; the matching record module is also used to record custom setting operation rules;

[0011] The judgment module is used to output a preset corresponding judgment based on the monitoring results of the voltage detection module and the current monitoring module, and the operation rules;

[0012] The monitoring module is used to monitor the area where the protective pressure plate is located and generate monitoring video;

[0013] The image analysis module is used to analyze the monitoring video using an image analysis algorithm based on the position of each protective pressure plate, identify human hands, and determine the position where the human hands appear;

[0014] The judgment module is further configured to judge whether the operation to be performed by the human hand is correct based on the operation rules and the position where the human hand appears, and to issue a corresponding reminder if it is incorrect.

[0015] Furthermore, several pairs of the protection pressure plates and resistance modules are divided into multiple pressure plate groups, the total resistance of the protection pressure plates and resistance modules in each pressure plate group is different, and the voltages at both ends of each pair of protection pressure plates and resistance modules in each pressure plate group are the same.

[0016] Furthermore, the reciprocals of the resistances at both ends of each pair of protection pressure plates and resistance modules in the same pressure plate group are different, and the value obtained by adding the reciprocals of the resistances at both ends of any two or more pairs of protection pressure plates and resistance modules is unique in the same pressure plate group.

[0017] Furthermore, the judgment module stores the sum of the currents of the protection pressure plate and the resistance module of each pressure plate group when the protection pressure plate is in normal state, and obtains the standard current value of the pressure plate group;

[0018] The judgment module calculates the sum of the currents passing through the protection pressure plate and the resistance module of each pressure plate group through the current monitoring module to obtain the actual current value of the pressure plate group.

[0019] Furthermore, the judgment module determines the protection pressure plate through which no current flows by calculating the difference between the standard current value of the pressure plate group and the actual current value of the pressure plate group.

[0020] Furthermore, the image analysis module divides the area where the protective pressure plate is located into multiple monitoring sub-areas, each of which corresponds to a protective pressure plate, that is, there is a protective pressure plate within the range of each monitoring sub-area, and the range of the monitoring sub-area is slightly larger than the area of ​​the protective pressure plate in the exit state.

[0021] Furthermore, the image analysis module detects that a foreign object has entered the surveillance video and performs an operation judgment, specifically including:

[0022] identifying the boundary of the foreign object based on an image edge detection algorithm;

[0023] Identifying a monitoring sub-area where one end of a boundary of the foreign object is located;

[0024] If it is detected that the pause time of the foreign object exceeds the set judgment threshold, it is determined that the protective pressure plate in the monitoring sub-area where one end of the boundary of the foreign object is paused is the protective pressure plate that is about to be operated by a human hand;

[0025] Based on the monitoring results of the voltage detection module and the current monitoring module and the operation rules, it is determined whether the protective pressure plate that the human hand is about to operate can be operated at this time, and if not, an alarm prompt is issued.

[0026] Furthermore, based on the images of human hands in the historical surveillance video of the operation protective pressure plate, the image analysis algorithm is trained so that the image analysis algorithm can recognize the human hands in the surveillance video. The image analysis algorithm recognizes foreign objects in the surveillance video, and if the foreign objects are human hands, the operation judgment is performed.

[0027] Compared with the existing technology, the present invention provides a protection pressure plate operation monitoring and management system, which, by setting a protection pressure plate, a resistance module, a voltage monitoring module, a current monitoring module, a matching recording module, a judgment module, a monitoring module, and an image analysis module, can configure the resistance value of each protection pressure plate and monitor the voltage at both ends and the current passing through each protection pressure plate after the resistance value is configured. It can determine whether the protection pressure plate is put into use and connected normally, thereby preventing poor contact of the protection pressure plate.

[0028] Compared with the existing technology, the present invention provides a protection pressure plate operation monitoring and management system, which calculates the difference between the standard current value of the pressure plate group and the actual current value of the pressure plate group by setting a protection pressure plate, a resistance module, a voltage monitoring module, a current monitoring module, a matching recording module, a judgment module, a monitoring module, and an image analysis module, and infers the specific position of the exited or disconnected protection pressure plate. It is simpler than using an image recognition algorithm and avoids misidentification of the image recognition algorithm.

[0029] Compared with the existing technology, the present invention provides a protection pressure plate operation monitoring and management system, which, by setting a protection pressure plate, a resistance module, a voltage monitoring module, a current monitoring module, a matching recording module, a judgment module, a monitoring module, and an image analysis module, can judge whether the protection pressure plate of the operation target can be operated during the process of the staff performing the operation of putting in and pushing out the protection pressure plate. If the operation cannot be performed, the staff will be reminded to stop the operation in time to prevent it from affecting the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0031] Figure 1 This is a system structure block diagram provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but the example embodiments may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of this disclosure to those skilled in the art.

[0036] In the absence of conflict, the various embodiments of the present disclosure and the various features therein may be combined with each other.

[0037] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0038] The terms used herein are used only to describe specific embodiments and are not intended to limit the present disclosure. As used herein, the singular forms "a," "an," and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It will also be understood that when the terms "comprising" and / or "made of" are used in this specification, the presence of the features, wholes, steps, operations, elements, and / or components is specified, but the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groups thereof is not excluded.

[0039] The embodiments described herein may be described with reference to plan views and / or cross-sectional views, with the aid of idealized schematic diagrams of the present disclosure. Thus, the example illustrations may be modified based on manufacturing techniques and / or tolerances. Therefore, the embodiments are not limited to the embodiments shown in the accompanying drawings, but include modifications of the configurations formed based on the manufacturing process. Therefore, the regions illustrated in the accompanying drawings are schematic in nature, and the shapes of the regions shown in the drawings illustrate specific shapes of the regions of the elements, but are not intended to be limiting.

[0040] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted as having an idealized or overly formal meaning unless expressly defined as such herein.

[0041] See also Figure 1 , a protection pressure plate operation monitoring and management system, including a protection pressure plate, a resistance module, a voltage monitoring module, a current monitoring module, a matching recording module, a judgment module, a monitoring module, and an image analysis module;

[0042] There are several pairs of protection pressure plates and resistance modules, which correspond one to one and are connected in series. At this time, a pair of protection pressure plates and resistance modules is regarded as a new protection pressure plate. The resistance module is used to configure the resistance value of the protection pressure plate. The resistance value of the protection pressure plate can be configured to the required value by connecting resistance modules of different resistance values ​​in series with the protection pressure plate.

[0043] The voltage monitoring module is used to monitor the voltages at both ends of the protection pressure plate and the resistance module respectively, and obtain the terminal voltages at the upper and lower ends of the protection pressure plate and the resistance module as a whole.

[0044] The current monitoring module is used to monitor the current passing through the protection pressure plate and the resistance module respectively.

[0045] The matching record module is used to record the resistance value, position and purpose of each pair of protection pressure plates and resistance modules; the matching record module is also used to record custom setting operation rules, the uses of which include the types of protection pressure plates such as protection function pressure plates and export pressure plates. The operation rules can be obtained through industry rules and expert advice.

[0046] The judgment module is used to output a preset corresponding judgment based on the monitoring results of the voltage detection module and the current monitoring module, as well as the operation rules;

[0047] The monitoring module is used to monitor the area where the protective pressure plate is located and generate monitoring videos;

[0048] The image analysis module is used to analyze the surveillance video based on the position of each protective pressure plate using an image analysis algorithm to identify human hands and determine the location of human hands;

[0049] The judgment module is also used to judge whether the operation to be performed by the human hand is correct based on the operation rules and the position of the human hand. If it is not correct, a corresponding reminder will be given.

[0050] Several pairs of protection plates and resistor modules are divided into multiple platen groups. The total resistance of the protection plates and resistor modules of each platen group is different, and the voltages at both ends of each pair of protection plates and resistor modules in each platen group are the same. The reciprocals of the resistances at both ends of each pair of protection plates and resistor modules in the same platen group are different, and the value obtained by adding the reciprocals of the resistances at both ends of any two or more pairs of protection plates and resistor modules is unique in the same platen group. The judgment module stores the sum of the currents of the protection plates and resistor modules of each platen group when the protection plates are put into operation under normal conditions, and obtains the standard current value of the platen group; the judgment module calculates the sum of the currents passing through the protection plates and resistor modules of each platen group through the current monitoring module, and obtains the actual current value of the platen group. The judgment module determines the protection plates through which no current flows by calculating the difference between the standard current value of the platen group and the actual current value of the platen group. Therefore, for each platen group, the difference between the standard current value and the actual current value of the platen group can be calculated to infer which protection platen in the platen group has been disconnected or disconnected. By determining which platen group the disconnected or disconnected protection plate belongs to, the position of the protection platen can be determined.

[0051] The image analysis module divides the area where the protective pressure plate is located into multiple monitoring sub-areas. Each monitoring sub-area corresponds to a protective pressure plate. That is, there is a protective pressure plate within the range of each monitoring sub-area, and the range of the monitoring sub-area is slightly larger than the area when the protective pressure plate is in the withdrawn state. The image analysis module detects the entry of foreign objects in the surveillance video and makes an operation judgment, which includes:

[0052] Identify the boundaries of foreign objects based on image edge detection algorithms;

[0053] Identifying the monitoring sub-area where one end of the boundary of the foreign object is located;

[0054] If the pause time of the foreign object detected exceeds the set judgment threshold, the protective pressure plate in the monitoring sub-area where one end of the boundary of the foreign object is paused is judged to be the protective pressure plate that is about to be operated by the human hand;

[0055] Based on the monitoring results and operation rules of the voltage detection module and the current monitoring module, it is determined whether the protective pressure plate that the human hand is about to operate can be operated. If not, an alarm prompt will be issued.

[0056] Preferably, an image analysis algorithm can also be trained based on images of human hands in historical surveillance videos of operating the protective pressure plate, so that the image analysis algorithm can recognize human hands in the surveillance video. The image analysis algorithm identifies foreign objects in the surveillance video. If the foreign object is a human hand, an operation judgment is made, thereby further improving the accuracy of the operation judgment and preventing other foreign objects other than human hands from accidentally entering the monitoring area and causing misjudgment.

[0057] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A protective plate operation monitoring and management system, characterized by: Including protection pressure plate, resistance module, voltage monitoring module, current monitoring module, matching recording module, judgment module, monitoring module, image analysis module; There are several pairs of protection pressure plates and resistance modules, and the protection pressure plates correspond to the resistance modules one by one and are connected in series. The voltage monitoring module is used to monitor the voltages at both ends of the protection pressure plate and the resistance module respectively; The current monitoring module is used to monitor the current passing through the protection pressure plate and the resistance module respectively; The matching record module is used to record the resistance value, position and purpose of each pair of protection pressure plates and resistance modules; the matching record module is also used to record custom setting operation rules; The judgment module is used to output a preset corresponding judgment based on the monitoring results of the voltage detection module and the current monitoring module, and the operation rules; The monitoring module is used to monitor the area where the protective pressure plate is located and generate monitoring video; The image analysis module is used to analyze the monitoring video using an image analysis algorithm based on the position of each protective pressure plate, identify human hands, and determine the position where the human hands appear; The judgment module is further configured to judge whether the operation to be performed by the human hand is correct based on the operation rules and the position where the human hand appears, and to issue a corresponding reminder if it is incorrect.

2. The protective pressure plate operation monitoring and management system according to claim 1, characterized in that: Several pairs of the protection pressure plates and resistance modules are divided into a plurality of pressure plate groups. The total resistance of the protection pressure plates and resistance modules in each pressure plate group is different, and the voltages at both ends of each pair of protection pressure plates and resistance modules in each pressure plate group are the same.

3. A protective pressure plate operation monitoring and management system according to claim 2, characterized in that: The reciprocal of the resistance at both ends of each pair of protection pressure plates and resistance modules in the same pressure plate group is different, and the value obtained by adding the reciprocal of the resistance at both ends of any two or more pairs of protection pressure plates and resistance modules is unique in the same pressure plate group.

4. The protective pressure plate operation monitoring and management system according to claim 3, characterized in that: The judgment module stores the sum of the currents of the protection pressure plate and the resistance module of each pressure plate group when the protection pressure plate is in normal state, and obtains the standard current value of the pressure plate group; The judgment module calculates the sum of the currents passing through the protection pressure plate and the resistance module of each pressure plate group through the current monitoring module to obtain the actual current value of the pressure plate group.

5. The protective pressure plate operation monitoring and management system according to claim 4, characterized in that: The judgment module determines the protection pressure plate through which no current flows by calculating the difference between the standard current value of the pressure plate group and the actual current value of the pressure plate group.

6. The protective pressure plate operation monitoring and management system according to claim 1, characterized in that: The image analysis module divides the area where the protective pressure plate is located into a plurality of monitoring sub-areas, and each monitoring sub-area corresponds to a protective pressure plate.

7. The protective pressure plate operation monitoring and management system according to claim 6, characterized in that: The image analysis module detects that a foreign object has entered the surveillance video and performs an operation judgment, specifically including: identifying the boundary of the foreign object based on an image edge detection algorithm; Identifying a monitoring sub-area where one end of a boundary of the foreign object is located; If it is detected that the pause time of the foreign object exceeds the set judgment threshold, it is determined that the protective pressure plate in the monitoring sub-area where one end of the boundary of the foreign object is paused is the protective pressure plate that is about to be operated by a human hand; Based on the monitoring results of the voltage detection module and the current monitoring module and the operation rules, it is determined whether the protective pressure plate that the human hand is about to operate can be operated at this time, and if not, an alarm prompt is issued.

8. The protective pressure plate operation monitoring and management system according to claim 7, characterized in that: Based on the images of human hands in the historical surveillance video of the operation of the protective pressure plate, the image analysis algorithm is trained so that the image analysis algorithm can recognize the human hands in the surveillance video. The image analysis algorithm recognizes foreign objects in the surveillance video, and if the foreign object is a human hand, the operation judgment is performed.

Images