Contact wear measurement method and device, computer equipment and storage medium
By installing a laser sensor on the contactor to measure the distance parameters of the moving contact and the static contact, and using a trigonometric function to calculate the contact wear amount, the cumbersome measurement problem in the prior art is solved, and efficient and accurate contact wear measurement is achieved.
Patent Information
- Application Number
- CN202510395938.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2025-07-01
AI Technical Summary
In the prior art, the measurement process of contact wear of medium pressure contactors is complicated, and it is necessary to disassemble the contactor and use hydraulic tools, resulting in inefficiency.
By installing the first laser sensor and the second laser sensor on the contactor, the distance parameters of the moving contact and the static contact during the closing process are measured, and the contact wear amount is calculated using a trigonometric function, without disassembling the contactor and hydraulic tools.
It enables efficient and accurate measurement of contact wear without disassembling the contactor and without using hydraulic tools, reducing operational difficulty and time cost.
Smart Images
Figure CN120232352A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electrical equipment maintenance, and particularly to a method and device for measuring contact wear, a computer device, and a storage medium. Background Art
[0002] During the process of opening and closing a medium-voltage contactor switch under load, an arc will be generated between the moving and static contacts. Due to the high temperature, the arc is likely to erode the contacts of the contactor switch. If the contacts are severely eroded, the breaking capacity of the contactor switch will be reduced, and it cannot meet the on-site usage conditions.
[0003] However, in the prior art, when measuring the contact wear of a contactor, operations such as removing the contactor air chamber and using a wrench to tighten the locknut are required. This process is cumbersome and takes a lot of time to complete the measurement of contact wear, resulting in low efficiency of contact wear measurement. Summary of the Invention
[0004] Based on this, in view of the above technical problems, it is necessary to provide a method and device for measuring contact wear, a computer device, and a storage medium that can efficiently complete the measurement of contact wear.
[0005] In a first aspect, this application provides a method for measuring contact wear. The method includes:
[0006] Obtain the distance parameters corresponding to the moving iron core of the contactor during the closing process of the moving and static contacts of the contactor; wherein, the distance parameters include the first distance parameter corresponding to the moving and static contacts at the start of closing, and the second distance parameter corresponding to the moving and static contacts at the end of closing;
[0007] Measure the contact wear based on the distance parameters to obtain the contact wear amount corresponding to the contactor.
[0008] In one embodiment, obtaining the distance parameters corresponding to the moving iron core of the contactor during the closing process of the moving and static contacts of the contactor includes:
[0009] Based on a laser sensor, obtain the distance parameters corresponding to the moving iron core of the contactor during the closing process of the moving and static contacts of the contactor;
[0010] wherein, the laser sensor is arranged on the upper surface of the contactor panel.
[0011] In one embodiment, the laser sensor includes a first laser sensor and a second laser sensor; both the first laser sensor and the second laser sensor are installed on the contactor chassis of the contactor. The installation positions of the first laser sensor and the second laser sensor are different, and the ranging lasers of the first laser sensor and the second laser sensor are both emitted towards the moving contact perpendicular to the chassis of the contactor chassis;
[0012] The first distance parameter includes a first distance sub-parameter detected by a first laser sensor and a second distance sub-parameter detected by a second laser sensor; wherein, the first distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the start of closing measured by the first laser sensor; the second distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the start of closing measured by the second laser sensor;
[0013] The second distance parameter includes a third distance sub-parameter detected by the first laser sensor and a fourth distance sub-parameter detected by the second laser sensor; wherein, the third distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the completion of closing measured by the first laser sensor; the fourth distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the completion of closing measured by the second laser sensor.
[0014] In one embodiment, measuring the contact wear according to the distance parameter to obtain the contact wear amount corresponding to the contactor, includes:
[0015] Determining a laser measurement value and a laser measurement difference according to the first distance parameter and the second distance parameter; wherein, the laser measurement value is equal to the difference between the third distance sub-parameter in the second distance parameter and the first distance sub-parameter in the first distance parameter; or, equal to the difference between the fourth distance sub-parameter in the second distance parameter and the second distance sub-parameter in the first distance parameter; the laser measurement difference is equal to the difference between the first distance sub-parameter and the second distance sub-parameter in the first distance parameter; or, equal to the difference between the third distance sub-parameter and the fourth distance sub-parameter in the second distance parameter;
[0016] Obtaining the installation distance between the first laser sensor and the second laser sensor in the laser sensors;
[0017] Measuring the contact wear according to the laser measurement value, the laser measurement difference and the installation distance to obtain the contact wear amount corresponding to the contactor.
[0018] In one embodiment, the method further includes:
[0019] Obtaining the predicted contact wear interval corresponding to the contactor;
[0020] In the case that the contact wear amount does not belong to the predicted contact wear interval, return to execute the step of obtaining the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor until it is determined that the contact wear amount belongs to the predicted contact wear interval.
[0021] In one embodiment, obtaining the predicted contact wear interval corresponding to the contactor, includes:
[0022] According to the production cycle of the contactor and the usage frequency of the contactor, select the predicted wear range of the contactor's contacts corresponding to the contactor from at least one candidate predicted wear range;
[0023] Among them, the production cycle of the contactor and the usage frequency of the contactor corresponding to each candidate predicted wear range are different.
[0024] In a second aspect, the present application also provides a device for measuring contact wear. The device includes:
[0025] An acquisition module, configured to acquire the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor; wherein, the distance parameter includes a first distance parameter corresponding to the moving contact and the static contact at the start of closing, and a second distance parameter corresponding to the moving contact and the static contact at the end of closing;
[0026] An analysis module, configured to measure contact wear according to the distance parameter to obtain the contact wear amount corresponding to the contactor.
[0027] In a third aspect, the present application also provides a computer device. The computer device includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:
[0028] Acquire the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor; wherein, the distance parameter includes a first distance parameter corresponding to the moving contact and the static contact at the start of closing, and a second distance parameter corresponding to the moving contact and the static contact at the end of closing;
[0029] Measure contact wear according to the distance parameter to obtain the contact wear amount corresponding to the contactor.
[0030] In a fourth aspect, the present application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:
[0031] Acquire the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor; wherein, the distance parameter includes a first distance parameter corresponding to the moving contact and the static contact at the start of closing, and a second distance parameter corresponding to the moving contact and the static contact at the end of closing;
[0032] Measure contact wear according to the distance parameter to obtain the contact wear amount corresponding to the contactor.
[0033] In a fifth aspect, the present application also provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the following steps are implemented:
[0034] Obtain the distance parameters corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor; wherein, the distance parameters include the first distance parameter corresponding to the moving contact and the static contact at the start of closing, and the second distance parameter corresponding to the moving contact and the static contact at the completion of closing;
[0035] Conduct contact wear measurement based on the distance parameters to obtain the contact wear amount corresponding to the contactor.
[0036] The above contact wear measurement method, device, computer device, and storage medium obtain the distance parameters corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor, so as to realize contact wear measurement based on the distance parameters and obtain the contact wear amount corresponding to the contactor. According to the above content, it can be known that during the measurement of the contact wear amount of the contactor in this application, the first distance parameter and the second distance parameter for different positions of the moving contact and the static contact are respectively obtained through the first laser sensor and the second laser sensor in advance; furthermore, a trigonometric function for the contact wear amount is constructed through the installation distance between the first laser sensor and the second laser sensor, as well as the first distance parameter and the second distance parameter. Thus, the first distance parameter and the second distance parameter that can be collected are substituted into the trigonometric function to obtain the contact wear amount corresponding to the contactor; this process does not require the drive of external hydraulic tools, and can accurately obtain the contact wear amount corresponding to the contactor without using a multimeter to monitor the state of the main contact and without disassembling the contactor, improving the efficiency of obtaining the contact wear amount corresponding to the contactor and reducing the operation difficulty of measuring the contact wear of the contactor. Description of the Drawings
[0037] Figure 1 It is an application environment diagram of a contact wear measurement method provided by an embodiment of the present application;
[0038] Figure 2 It is a flowchart of the first contact wear measurement method provided by an embodiment of the present application;
[0039] Figure 3a It is a schematic diagram of the installation position of the first laser sensor provided by an embodiment of the present application;
[0040] Figure 3b It is a grayscale diagram of the installation position of the second laser sensor provided by an embodiment of the present application;
[0041] Figure 4 It is a flowchart of the second contact wear measurement method provided by an embodiment of the present application;
[0042] Figure 5 It is a schematic diagram of contact wear measurement provided by an embodiment of the present application;
[0043] Figure 6 Schematic flowchart of the third method for measuring contact wear provided by an embodiment of this application;
[0044] Figure 7a Schematic diagram of the installation position of the third laser sensor provided by an embodiment of this application;
[0045] Figure 7b Grayscale image of the installation position of the fourth laser sensor provided by an embodiment of this application;
[0046] Figure 8a Schematic diagram of the first switch characteristic tester provided by an embodiment of this application;
[0047] Figure 8b Grayscale image of the second switch characteristic tester provided by an embodiment of this application;
[0048] Figure 9 Structural block diagram of a contact wear measurement device provided by an embodiment of this application;
[0049] Figure 10 Internal structure diagram of a computer device in one embodiment. Detailed implementation manners
[0050] In order to make the objectives, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.
[0051] The method for measuring contact wear provided by an embodiment of this application can be applied to an application environment as shown in Figure 1 . Among them, the terminal 102 communicates with the server 104 through a network. The data storage system can store the data that the server 104 needs to process. The data storage system can be integrated on the server 104, or can be placed in the cloud or on other network servers. By obtaining the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving and static contacts of the contactor, the contact wear measurement is realized according to the distance parameter, and the contact wear amount corresponding to the contactor is obtained. Among them, the terminal 102 can be, but is not limited to, various personal computers, laptop computers, smart phones, tablet computers, Internet of Things devices, and portable wearable devices. The Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart vehicle-mounted devices, etc. The portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc. The server 104 can be implemented by an independent server or a server cluster composed of multiple servers.
[0052] In one embodiment, as shown in Figure 2 , a method for measuring contact wear is provided, and this method is applied toFigure 1 Taking the terminal 102 in
[0053] S201, during the closing process of the moving contact and the static contact of the contactor, obtain the distance parameter corresponding to the moving iron core of the contactor.
[0054] The distance parameter includes a first distance parameter corresponding to the moving contact and the static contact at the start of closing, and a second distance parameter corresponding to the moving contact and the static contact at the end of closing.
[0055] It should be noted that when it is necessary to obtain the distance parameter corresponding to the moving iron core of the contactor, a ranging sensor can be pre-set on the contactor to realize the operation of obtaining the distance parameter corresponding to the moving iron core of the contactor according to the ranging sensor.
[0056] Specifically, the ranging sensor can be a laser sensor; further, there can be many types of the ranging sensor, and the type of the ranging sensor is not limited here.
[0057] In an embodiment of the present application, a laser sensor can be pre-set on the contactor to realize obtaining, based on the laser sensor, the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor.
[0058] S202, perform contact wear measurement according to the distance parameter to obtain the contact wear amount corresponding to the contactor.
[0059] It should be noted that when it is necessary to perform contact wear measurement according to the distance parameter, the laser measurement value and the laser measurement difference can be determined according to the first distance parameter and the second distance parameter, and the installation distance between the first laser sensor and the second laser sensor in the laser sensor can be determined; furthermore, contact wear measurement is performed according to the laser measurement value, the laser measurement difference and the installation distance to obtain the contact wear amount corresponding to the contactor.
[0060] Both the first laser sensor and the second laser sensor are installed on the contactor chassis of the contactor, and the installation positions of the first laser sensor and the second laser sensor are different.
[0061] The above-mentioned contact wear measurement method realizes the measurement of contact wear according to the distance parameter by obtaining the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor, and obtains the contact wear amount corresponding to the contactor. According to the above content, it can be known that during the measurement of the contact wear amount of the contactor in this application, the first distance parameter and the second distance parameter for different positions of the moving contact and the static contact are respectively obtained through the first laser sensor and the second laser sensor in advance; furthermore, through the installation distance between the first laser sensor and the second laser sensor, as well as the first distance parameter and the second distance parameter, a trigonometric function for the contact wear amount is constructed. Thus, the first distance parameter and the second distance parameter that can be collected are substituted into the trigonometric function to obtain the contact wear amount corresponding to the contactor; this process does not require the drive of external hydraulic tools, and can accurately obtain the contact wear amount corresponding to the contactor without using a multimeter to monitor the state of the main contact and without disassembling the contactor, improving the efficiency of obtaining the contact wear amount corresponding to the contactor and reducing the operation difficulty of measuring the contact wear of the contactor.
[0062] In one embodiment, when it is necessary to obtain the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor, the following specific contents may be included:
[0063] Based on the laser sensor, obtain the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor; wherein, the laser sensor is arranged on the upper surface of the contactor panel.
[0064] It should be noted that in order to ensure that the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact can be accurately obtained through the laser sensor, therefore, it is necessary to set the installation position of the laser sensor to ensure the accuracy of obtaining the distance parameter.
[0065] In one embodiment of the present application, the installation position of the laser sensor is as Figure 3a and Figure 3b shown. Specifically, the laser sensor can be installed on the upper surface of the contactor chassis by using the installation holes on the contactor chassis.
[0066] Furthermore, the laser sensor includes a first laser sensor and a second laser sensor; both the first laser sensor and the second laser sensor are installed on the contactor chassis of the contactor, the installation positions of the first laser sensor and the second laser sensor are different, and the ranging lasers of the first laser sensor and the second laser sensor are both emitted towards the moving contact perpendicular to the chassis of the contactor chassis;
[0067] The first distance parameter includes a first distance sub-parameter detected by a first laser sensor and a second distance sub-parameter detected by a second laser sensor; wherein, the first distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the start of closing measured by the first laser sensor; the second distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the start of closing measured by the second laser sensor;
[0068] The second distance parameter includes a third distance sub-parameter detected by the first laser sensor and a fourth distance sub-parameter detected by the second laser sensor; wherein, the third distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the completion of closing measured by the first laser sensor; the fourth distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the completion of closing measured by the second laser sensor.
[0069] The above-mentioned contact wear measurement method, based on the first laser sensor and the second laser sensor, realizes data acquisition during the closing process of the moving contact and the static contact of the contactor, obtains the first distance sub-parameter, the second distance sub-parameter, the third distance sub-parameter and the fourth distance sub-parameter, and thus realizes constructing a trigonometric function for the contact wear amount according to the relative relationship among the first distance sub-parameter, the second distance sub-parameter, the third distance sub-parameter and the fourth distance sub-parameter, providing a data basis for subsequently determining the contact wear amount corresponding to the contactor and ensuring the smooth progress of the subsequent process.
[0070] In one embodiment, as Figure 4 shown, when it is necessary to measure the contact wear according to the distance parameter to obtain the contact wear amount corresponding to the contactor, it may specifically include the following contents:
[0071] S401, determine the laser measurement value and the laser measurement difference according to the first distance parameter and the second distance parameter.
[0072] It should be noted that the laser measurement value is equal to the difference between the third distance sub-parameter in the second distance parameter and the first distance sub-parameter in the first distance parameter; or, equal to the difference between the fourth distance sub-parameter in the second distance parameter and the second distance sub-parameter in the first distance parameter.
[0073] Furthermore, the laser measurement difference is equal to the difference between the first distance sub-parameter in the first distance parameter and the second distance sub-parameter in the first distance parameter; or, equal to the difference between the third distance sub-parameter in the second distance parameter and the fourth distance sub-parameter in the second distance parameter.
[0074] S402, obtain the installation distance between the first laser sensor and the second laser sensor in the laser sensor.
[0075] S403. Measure the contact wear according to the laser measurement value, the laser measurement difference, and the installation distance to obtain the contact wear amount corresponding to the contactor.
[0076] It should be noted that when it is necessary to measure the contact wear according to the laser measurement value, the laser measurement difference, and the installation distance, a schematic diagram of the contact wear measurement can be pre-constructed. The schematic diagram is as follows Figure 5 shown in the figure. In the figure, 1 refers to the position of the moving iron core corresponding to the moving and static contacts of the contactor at the start of closing; 2 refers to the position of the moving iron core corresponding to the moving and static contacts of the contactor at the time of opening; 3 refers to the contact wear amount corresponding to the contactor; 4 refers to the measurement laser beam; 5 refers to the installation fixing plate of the laser sensor; 6 refers to the installation distance between the first laser sensor and the second laser sensor in the laser sensor; 7 refers to the laser measurement difference.
[0077] Furthermore, according to the schematic diagram of the contact wear measurement, the following equation can be constructed; furthermore, according to the following equation, the operation of measuring the contact wear according to the distance parameter is realized to obtain the contact wear amount corresponding to the contactor.
[0078] Among them, the equation is as follows:
[0079]
[0080] Among them, S refers to the contact wear amount corresponding to the contactor; d refers to the installation distance between the first laser sensor and the second laser sensor; △L refers to the laser measurement difference; L refers to the laser measurement value.
[0081] By performing parameter transposition on the equation, the calculation formula for the contact wear amount corresponding to the contactor can be obtained. The calculation formula is as follows:
[0082]
[0083] Among them, S refers to the contact wear amount corresponding to the contactor; d refers to the installation distance between the first laser sensor and the second laser sensor; △L refers to the laser measurement difference; L refers to the laser measurement value.
[0084] Further explanation, after determining the contact wear amount corresponding to the contactor, to verify whether the measured contact wear amount is accurate, the following content can also be included: obtaining the predicted contact wear interval corresponding to the contactor; in the case where the contact wear amount does not belong to the predicted contact wear interval, return to execute the step of obtaining the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving and static contacts of the contactor until it is determined that the contact wear amount belongs to the predicted contact wear interval.
[0085] Specifically, when it is necessary to obtain the predicted wear range of the contact of the contactor, the following may be included: select the predicted wear range of the contact of the contactor from at least one candidate predicted wear range according to the production cycle and the usage frequency of the contactor; wherein, the production cycles and usage frequencies of the contactors corresponding to the candidate predicted wear ranges are different.
[0086] In an embodiment of the present application, when it is necessary to measure the contact wear, the production cycle and the usage frequency of the contactor for which the contact wear measurement is required can be determined. If there are a total of three candidate predicted wear ranges, namely candidate predicted wear range A, candidate predicted wear range B, and candidate predicted wear range C; wherein, the production cycle corresponding to candidate predicted wear range A is within one year and the usage frequency is low; the production cycle corresponding to candidate predicted wear range B is within one year and the usage frequency is high; the production cycle corresponding to candidate predicted wear range C is within three years and the usage frequency is high; if it is determined that the production cycle of the contactor is within three years and the usage frequency is high; then candidate predicted wear range C is used as the predicted wear range of the contact. If it is determined that the contact wear amount belongs to the predicted wear range of the contact, it is determined that the obtained contact wear amount is accurate.
[0087] The above contact wear measurement method realizes the measurement of the contact wear amount corresponding to the contactor by obtaining the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor. According to the above content, since the distance parameter includes the first distance parameter corresponding to the moving contact and the static contact at the start of closing, and the second distance parameter corresponding to the moving contact and the static contact at the end of closing, therefore, when the present application measures the contact wear of the contactor, it analyzes the distance parameter of the moving iron core of the contactor during the closing process of the moving contact and the static contact to realize the operation of contact wear measurement. This process does not require the drive of an external hydraulic tool, and can accurately obtain the contact wear amount corresponding to the contactor without using a multimeter to monitor the state of the main contact and without disassembling the contactor, improving the efficiency of obtaining the contact wear amount corresponding to the contactor and reducing the operation difficulty of measuring the contact wear of the contactor.
[0088] In one embodiment, as Figure 6 shown, when it is necessary to obtain the contact wear amount corresponding to the contactor, the following may specifically be included:
[0089] S601, based on a laser sensor, obtain the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor.
[0090] Among them, the distance parameter includes the first distance parameter corresponding to the moving contact and the static contact at the start of closing, and the second distance parameter corresponding to the moving contact and the static contact at the end of closing;
[0091] S602. Determine a laser measurement value and a laser measurement difference according to a first distance parameter and a second distance parameter.
[0092] S603. Obtain the installation distance between a first laser sensor and a second laser sensor in the laser sensor.
[0093] S604. Perform contact wear measurement according to the laser measurement value, the laser measurement difference, and the installation distance to obtain the contact wear amount corresponding to the contactor.
[0094] In one embodiment, if there are three-phase contacts in total, and the three-phase contacts are the A-phase contact, the B-phase contact, and the C-phase contact respectively; then when performing contact wear measurement according to the distance parameter, it is necessary to perform contact wear measurement for the three-phase contacts respectively; the contact wear measurement method can be executed by a laser sensor and a switch characteristic tester; as Figure 7a and Figure 7b shown, the laser distance measurement sensor is installed on the contactor panel through a special fixing bracket to measure the distance parameter corresponding to the moving iron core of the contactor; as Figure 8a and Figure 8b shown, the switch characteristic tester uses software to read the sensor data in three states and takes corresponding data for calculation, and the switch characteristic tester has an output capable of measuring the on / off states of the ABC three phases of the main circuit of the contactor.
[0095] The above contact wear measurement method realizes contact wear measurement according to the distance parameter by obtaining the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor, so as to obtain the contact wear amount corresponding to the contactor. According to the above content, since the distance parameter includes the first distance parameter corresponding to the moving contact and the static contact at the start of closing, and the second distance parameter corresponding to the moving contact and the static contact at the end of closing, therefore, when performing contact wear measurement on the contactor in this application, it is to analyze the distance parameter of the moving iron core of the contactor during the closing process of the moving contact and the static contact to realize the operation of contact wear measurement. This process does not need to be driven by an external hydraulic tool, and can accurately obtain the contact wear amount corresponding to the contactor without using a multimeter to monitor the state of the main contact and without disassembling the contactor, improving the efficiency of obtaining the contact wear amount corresponding to the contactor and reducing the operation difficulty of performing contact wear measurement on the contactor.
[0096] It should be understood that although the steps in the flowcharts involved in the above embodiments are shown in sequence according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or steps or stages in other steps.
[0097] Based on the same inventive concept, an embodiment of the present application also provides a contact wear measurement device for implementing the contact wear measurement method involved above. The implementation solutions provided by this device to solve problems are similar to the implementation solutions described in the above method. Therefore, the specific limitations in one or more embodiments of the contact wear measurement device provided below can refer to the limitations on the contact wear measurement method in the above text, and will not be repeated here.
[0098] In one embodiment, as Figure 9 shown, a contact wear measurement device is provided, including: an acquisition module 10 and an analysis module 20, where:
[0099] The acquisition module 10 is used to acquire the distance parameters corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor; wherein, the distance parameters include the first distance parameter corresponding to the moving contact and the static contact at the start of closing, and the second distance parameter corresponding to the moving contact and the static contact at the end of closing;
[0100] The analysis module 20 is used to measure the contact wear according to the distance parameters to obtain the contact wear amount corresponding to the contactor.
[0101] In one embodiment, based on a laser sensor, the distance parameters corresponding to the moving iron core of the contactor are acquired during the closing process of the moving contact and the static contact of the contactor;
[0102] wherein, the laser sensor is arranged on the upper surface of the contactor panel.
[0103] In one embodiment, the first distance parameter includes the first distance sub-parameter detected by the first laser sensor and the second distance sub-parameter detected by the second laser sensor;
[0104] The second distance parameter includes the third distance sub-parameter detected by the first laser sensor and the fourth distance sub-parameter detected by the second laser sensor.
[0105] In one embodiment, a laser measurement value and a laser measurement difference are determined according to a first distance parameter and a second distance parameter;
[0106] The installation distance between a first laser sensor and a second laser sensor in the laser sensor is obtained;
[0107] Contact wear measurement is performed according to the laser measurement value, the laser measurement difference, and the installation distance to obtain the contact wear amount corresponding to the contactor.
[0108] In one embodiment, the laser measurement value is equal to the difference between a third distance sub-parameter in the second distance parameter and a first distance sub-parameter in the first distance parameter; or, it is equal to the difference between a fourth distance sub-parameter in the second distance parameter and a second distance sub-parameter in the first distance parameter.
[0109] In one embodiment, the laser measurement difference is equal to the difference between a first distance sub-parameter and a second distance sub-parameter in the first distance parameter; or, it is equal to the difference between a third distance sub-parameter and a fourth distance sub-parameter in the second distance parameter.
[0110] The above contact wear measurement device obtains the distance parameters corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor, so as to realize contact wear measurement according to the distance parameters and obtain the contact wear amount corresponding to the contactor. According to the above content, since the distance parameters include the first distance parameter corresponding to the moving contact and the static contact at the start of closing, and the second distance parameter corresponding to the moving contact and the static contact at the end of closing, therefore, when the present application performs contact wear measurement on the contactor, it analyzes the distance parameters of the moving iron core of the contactor during the closing process of the moving contact and the static contact to realize the operation of contact wear measurement. This process does not require the use of external hydraulic tools for driving, and can accurately obtain the contact wear amount corresponding to the contactor without using a multimeter to monitor the state of the main contact and without disassembling the contactor, improving the efficiency of obtaining the contact wear amount corresponding to the contactor and reducing the operation difficulty of contact wear measurement on the contactor.
[0111] Each module in the above contact wear measurement device can be implemented in whole or in part by software, hardware, and their combination. The above modules can be embedded in the processor of the computer device in hardware form or be independent of it, or can be stored in the memory of the computer device in software form so that the processor can call and execute the operations corresponding to the above respective modules.
[0112] In one embodiment, a computer device is provided. The computer device can be a terminal, and its internal structure diagram can be as Figure 10As shown in the figure. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. Among them, the processor, the memory, and the input / output interface are connected through a system bus, and the communication interface, the display unit, and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a method for measuring contact wear. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer covering the display screen, or a button, a trackball, or a touchpad provided on the housing of the computer device, or an external keyboard, a touchpad, or a mouse, etc.
[0113] Those skilled in the art can understand that Figure 10 the structure shown in the figure is only a block diagram of some structures related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.
[0114] In one embodiment, a computer device is provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, the following steps are implemented:
[0115] Obtain the distance parameters corresponding to the moving iron core of the contactor for the moving contact and the static contact of the contactor during the closing process; among them, the distance parameters include the first distance parameter corresponding to the moving contact and the static contact at the start of closing, and the second distance parameter corresponding to the moving contact and the static contact at the end of closing;
[0116] Measure the contact wear according to the distance parameters to obtain the contact wear amount corresponding to the contactor.
[0117] In one embodiment, when the processor executes the computer program, the following steps are also implemented:
[0118] Based on a laser sensor, obtain the distance parameters corresponding to the moving iron core of the contactor for the moving contact and the static contact of the contactor during the closing process;
[0119] Among them, the laser sensor is arranged on the upper surface of the contactor panel.
[0120] In one embodiment, when the processor executes the computer program, the following steps are further implemented:
[0121] The laser sensor includes a first laser sensor and a second laser sensor; both the first laser sensor and the second laser sensor are installed on the contactor chassis of the contactor. The installation positions of the first laser sensor and the second laser sensor are different, and the ranging lasers of the first laser sensor and the second laser sensor are both emitted towards the moving contact perpendicular to the chassis of the contactor chassis;
[0122] The first distance parameter includes a first distance sub-parameter detected by the first laser sensor and a second distance sub-parameter detected by the second laser sensor; wherein, the first distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the start of closing measured by the first laser sensor; the second distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the start of closing measured by the second laser sensor;
[0123] The second distance parameter includes a third distance sub-parameter detected by the first laser sensor and a fourth distance sub-parameter detected by the second laser sensor; wherein, the third distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the completion of closing measured by the first laser sensor; the fourth distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the completion of closing measured by the second laser sensor.
[0124] In one embodiment, when the processor executes the computer program, the following steps are further implemented:
[0125] According to the first distance parameter and the second distance parameter, determine the laser measurement value and the laser measurement difference; wherein, the laser measurement value is equal to the difference between the third distance sub-parameter in the second distance parameter and the first distance sub-parameter in the first distance parameter; or, equal to the difference between the fourth distance sub-parameter in the second distance parameter and the second distance sub-parameter in the first distance parameter; the laser measurement difference is equal to the difference between the first distance sub-parameter and the second distance sub-parameter in the first distance parameter; or, equal to the difference between the third distance sub-parameter and the fourth distance sub-parameter in the second distance parameter;
[0126] Obtain the installation distance between the first laser sensor and the second laser sensor in the laser sensor;
[0127] Perform contact wear measurement according to the laser measurement value, the laser measurement difference and the installation distance to obtain the contact wear amount corresponding to the contactor.
[0128] In one embodiment, when the processor executes the computer program, the following steps are further implemented:
[0129] Obtain the predicted wear interval of the contact corresponding to the contactor;
[0130] In the case where the contact wear amount does not belong to the predicted wear interval of the contact, return to execute the step of obtaining the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor until it is determined that the contact wear amount belongs to the predicted wear interval of the contact.
[0131] In one embodiment, when the processor executes the computer program, the following steps are further implemented:
[0132] Select the predicted wear interval of the contact corresponding to the contactor from at least one candidate predicted wear interval according to the production cycle of the contactor and the usage frequency of the contactor;
[0133] Wherein, the production cycle of the contactor and the usage frequency of the contactor corresponding to each candidate predicted wear interval are different.
[0134] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:
[0135] Obtain the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor; wherein, the distance parameter includes the first distance parameter corresponding to the moving contact and the static contact at the start of closing, and the second distance parameter corresponding to the moving contact and the static contact at the end of closing;
[0136] Measure the contact wear according to the distance parameter to obtain the contact wear amount corresponding to the contactor.
[0137] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented:
[0138] Based on a laser sensor, obtain the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor;
[0139] Wherein, the laser sensor is arranged on the upper surface of the contactor panel.
[0140] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented:
[0141] The laser sensor includes a first laser sensor and a second laser sensor; both the first laser sensor and the second laser sensor are installed on the contactor chassis of the contactor, the installation positions of the first laser sensor and the second laser sensor are different, and the ranging lasers of the first laser sensor and the second laser sensor are both emitted towards the moving contact perpendicular to the chassis of the contactor chassis;
[0142] The first distance parameter includes a first distance sub-parameter detected by a first laser sensor and a second distance sub-parameter detected by a second laser sensor; wherein, the first distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the start of closing measured by the first laser sensor; the second distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the start of closing measured by the second laser sensor;
[0143] The second distance parameter includes a third distance sub-parameter detected by the first laser sensor and a fourth distance sub-parameter detected by the second laser sensor; wherein, the third distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the end of closing measured by the first laser sensor; the fourth distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the end of closing measured by the second laser sensor.
[0144] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:
[0145] According to the first distance parameter and the second distance parameter, determine the laser measurement value and the laser measurement difference; wherein, the laser measurement value is equal to the difference between the third distance sub-parameter in the second distance parameter and the first distance sub-parameter in the first distance parameter; or, equal to the difference between the fourth distance sub-parameter in the second distance parameter and the second distance sub-parameter in the first distance parameter; the laser measurement difference is equal to the difference between the first distance sub-parameter and the second distance sub-parameter in the first distance parameter; or, equal to the difference between the third distance sub-parameter and the fourth distance sub-parameter in the second distance parameter;
[0146] Obtain the installation distance between the first laser sensor and the second laser sensor in the laser sensor;
[0147] Perform contact wear measurement according to the laser measurement value, the laser measurement difference and the installation distance to obtain the contact wear amount corresponding to the contactor.
[0148] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:
[0149] Obtain the predicted contact wear interval corresponding to the contactor;
[0150] In the case where the contact wear amount does not belong to the predicted contact wear interval, return to execute the step of obtaining the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor until it is determined that the contact wear amount belongs to the predicted contact wear interval.
[0151] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:
[0152] According to the production cycle of the contactor and the usage frequency of the contactor, select the predicted wear range of the contactor's contacts corresponding to the contactor from at least one candidate predicted wear range;
[0153] Among them, the production cycle of the contactor and the usage frequency of the contactor corresponding to each candidate predicted wear range are different.
[0154] In one embodiment, a computer program product is provided, including a computer program, which when executed by a processor implements the following steps:
[0155] Obtain the distance parameters corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor; among them, the distance parameters include the first distance parameter corresponding to the moving contact and the static contact at the start of closing, and the second distance parameter corresponding to the moving contact and the static contact at the end of closing;
[0156] Perform contact wear measurement according to the distance parameters to obtain the contact wear amount corresponding to the contactor.
[0157] In one embodiment, when the computer program is executed by a processor, it also implements the following steps:
[0158] Based on a laser sensor, obtain the distance parameters corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor;
[0159] Among them, the laser sensor is arranged on the upper surface of the contactor panel.
[0160] In one embodiment, when the computer program is executed by a processor, it also implements the following steps:
[0161] The laser sensor includes a first laser sensor and a second laser sensor; both the first laser sensor and the second laser sensor are installed on the contactor chassis of the contactor, the installation positions of the first laser sensor and the second laser sensor are different, and the ranging lasers of the first laser sensor and the second laser sensor are both emitted towards the moving contact perpendicular to the chassis of the contactor chassis;
[0162] The first distance parameter includes a first distance sub-parameter detected by the first laser sensor and a second distance sub-parameter detected by the second laser sensor; among them, the first distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the start of closing measured by the first laser sensor; the second distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact at the start of closing measured by the second laser sensor;
[0163] The second distance parameter includes a third distance sub-parameter detected by the first laser sensor and a fourth distance sub-parameter detected by the second laser sensor; wherein, the third distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact when closing is completed, measured by the first laser sensor; and the fourth distance sub-parameter is the distance parameter corresponding to the moving contact and the static contact when closing is completed, measured by the second laser sensor.
[0164] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented:
[0165] According to the first distance parameter and the second distance parameter, determine the laser measurement value and the laser measurement difference; wherein, the laser measurement value is equal to the difference between the third distance sub-parameter in the second distance parameter and the first distance sub-parameter in the first distance parameter; or, equal to the difference between the fourth distance sub-parameter in the second distance parameter and the second distance sub-parameter in the first distance parameter; the laser measurement difference is equal to the difference between the first distance sub-parameter and the second distance sub-parameter in the first distance parameter; or, equal to the difference between the third distance sub-parameter and the fourth distance sub-parameter in the second distance parameter;
[0166] Obtain the installation distance between the first laser sensor and the second laser sensor in the laser sensor;
[0167] Perform contact wear measurement according to the laser measurement value, the laser measurement difference and the installation distance to obtain the contact wear amount corresponding to the contactor.
[0168] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented:
[0169] Obtain the predicted contact wear interval corresponding to the contactor;
[0170] In the case where the contact wear amount does not belong to the predicted contact wear interval, return to execute the step of obtaining the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor until it is determined that the contact wear amount belongs to the predicted contact wear interval.
[0171] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented:
[0172] According to the production cycle of the contactor and the usage frequency of the contactor, select the predicted contact wear interval corresponding to the contactor from at least one candidate predicted wear interval;
[0173] Wherein, the production cycle of the contactor and the usage frequency of the contactor corresponding to each candidate predicted wear interval are different.
[0174] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in this application are all information and data that have been authorized by the user or fully authorized by all parties, and the collection, use, and processing of relevant data need to comply with the relevant laws, regulations, and standards of relevant countries and regions.
[0175] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in this application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in this application can be general-purpose processors, central processors, graphics processors, digital signal processors, programmable logic devices, data processing logics based on quantum computing, etc., without limitation.
[0176] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0177] The above embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims
1. A contact wear measurement method, characterized in that: The method comprises: Obtaining a distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor; wherein the distance parameter includes a first distance parameter corresponding to the moving contact and the static contact at the beginning of closing, and a second distance parameter corresponding to the moving contact and the static contact at the completion of closing; The contact wear is measured according to the distance parameter to obtain the contact wear amount corresponding to the contactor.
2. The method according to claim 1, characterized in that The obtaining of the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the stationary contact of the contactor comprises: Based on the laser sensor, the distance parameters corresponding to the moving iron core of the contactor during the closing process between the moving contact and the static contact of the contactor are obtained; Wherein, the laser sensor is arranged on the upper surface of the contactor panel.
3. The method according to claim 2, characterized in that The laser sensor comprises a first laser sensor and a second laser sensor; the first laser sensor and the second laser sensor are both mounted on the contactor chassis of the contactor, the first laser sensor and the second laser sensor are mounted at different positions, and the ranging lasers of the first laser sensor and the second laser sensor are both emitted toward the moving contact along a chassis perpendicular to the contactor chassis; The first distance parameter includes a first distance sub-parameter detected by a first laser sensor and a second distance sub-parameter detected by a second laser sensor; wherein the first distance sub-parameter is a distance parameter corresponding to the moving contact and the static contact at the beginning of closing, measured by the first laser sensor; and the second distance sub-parameter is a distance parameter corresponding to the moving contact and the static contact at the beginning of closing, measured by the second laser sensor; The second distance parameter includes a third distance sub-parameter detected by the first laser sensor and a fourth distance sub-parameter detected by the second laser sensor; wherein the third distance sub-parameter is a distance parameter corresponding to the moving contact and the static contact when the closing is completed and measured by the first laser sensor; the fourth distance sub-parameter is a distance parameter corresponding to the moving contact and the static contact when the closing is completed and measured by the second laser sensor.
4. The method according to claim 3, characterized in that The step of measuring the contact wear according to the distance parameter to obtain the contact wear amount corresponding to the contactor includes: Determine a laser measurement value and a laser measurement difference according to the first distance parameter and the second distance parameter; wherein the laser measurement value is equal to the difference between the third distance sub-parameter in the second distance parameter and the first distance sub-parameter in the first distance parameter; or, is equal to the difference between the fourth distance sub-parameter in the second distance parameter and the second distance sub-parameter in the first distance parameter; the laser measurement difference is equal to the difference between the first distance sub-parameter in the first distance parameter and the second distance sub-parameter in the first distance parameter; or, is equal to the difference between the third distance sub-parameter in the second distance parameter and the fourth distance sub-parameter in the second distance parameter; Acquire an installation distance between a first laser sensor and a second laser sensor in the laser sensor; The contact wear measurement is performed according to the laser measurement value, the laser measurement difference and the installation distance to obtain the contact wear amount corresponding to the contactor.
5. The method according to claim 1, characterized in that The method further comprises: Obtaining a predicted contact wear interval corresponding to the contactor; When the contact wear amount does not belong to the predicted contact wear range, the process returns to the step of obtaining the distance parameter corresponding to the moving iron core of the contactor between the moving contact and the static contact of the contactor during the closing process until it is determined that the contact wear amount belongs to the predicted contact wear range.
6. The method according to claim 5, characterized in that The obtaining of the predicted contact wear interval corresponding to the contactor includes: Selecting a contact predicted wear interval corresponding to the contactor from at least one candidate predicted wear interval according to a production cycle of the contactor and a use frequency of the contactor; The contactor production cycles and contactor usage frequencies corresponding to the candidate predicted wear intervals are different.
7. A contact wear measuring device, characterized in that: The device comprises: An acquisition module is used to acquire the distance parameter corresponding to the moving iron core of the contactor during the closing process of the moving contact and the static contact of the contactor; wherein the distance parameter includes a first distance parameter corresponding to the moving contact and the static contact at the beginning of closing, and a second distance parameter corresponding to the moving contact and the static contact at the completion of closing; The analysis module is used to measure the contact wear according to the distance parameter to obtain the contact wear amount corresponding to the contactor.
8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.
9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.
10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.