CN117007897B - Electrical equipment testing system applied to electrotometer laboratory - Google Patents
Electrical equipment testing system applied to electrotometer laboratory Download PDFInfo
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- CN117007897B CN117007897B CN202311281581.6A CN202311281581A CN117007897B CN 117007897 B CN117007897 B CN 117007897B CN 202311281581 A CN202311281581 A CN 202311281581A CN 117007897 B CN117007897 B CN 117007897B
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention relates to the field of electrical testing, and particularly discloses an electrical equipment testing system applied to an electrotometer laboratory, which comprises the following components: the electric test bench is used for placing electric equipment to be tested, and a plurality of test meters are arranged in the electric test bench; the plurality of image acquisition devices are respectively arranged at different directions of the electric test bench to acquire images with different visual angles; the computing equipment is used for determining equipment identification of the electrical equipment to be tested, generating and executing a test case set corresponding to the equipment identification, controlling the plurality of image acquisition equipment to acquire a plurality of images after the execution of each test case in the test case set is completed, reading the plurality of images and analyzing the images to obtain an actual output result, generating an electrical test result corresponding to each test case according to the actual output result, and generating an electrical test result of the electrical equipment to be tested according to each electrical test result. Therefore, intelligent electrical equipment testing is realized, and the dependence on manpower is reduced.
Description
Technical Field
The invention relates to the field of electrical testing, in particular to an electrical equipment testing system applied to an electrotometer laboratory.
Background
In order to accept test projects such as electric debugging of power generation engineering, testing of thermal control instruments of power plant boilers and the like, an electric instrument laboratory is provided with various electric equipment for tests, including series resonance boosting equipment (maximum output 500KV alternating current), direct current boosting equipment (maximum output 300KV direct current), a cable fault tester, an alternating current impedance tester, a breaker characteristic tester and the like. These devices often suffer from low accuracy and poor stability after prolonged use. In order to improve the stability and accuracy of operation of the electrical equipment, it is necessary to periodically perform power-on tests on the electrical equipment. However, since many and different testing methods of these devices are not used, it is difficult for the device user to directly test these devices, and thus the existing testing method is to send these devices to a professional testing organization for testing.
The existing test mode often has the following technical problems:
first, because such electrical devices are heavy and bulky, it takes significant manpower and resources to send the devices to a specialized testing facility, resulting in high testing costs;
second, in the conventional test method, after testing the electrical equipment, the test results are typically stored in a computer in a test mechanism or an electrometer laboratory. When the historical test result is required to be inquired, the historical test result cannot be inquired in time because the personnel for executing the test are different or the computer is different;
thirdly, when placing the test instrument on the baffle, because the equipment user is operated in the operating space, the test instrument can not be directly observed, and the difficulty of distinguishing different test instruments is great.
Disclosure of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
The invention proposes an electrical equipment testing system applied to an electrotechnical laboratory, which solves one or more of the technical problems mentioned in the background section above.
The invention provides an electrical equipment testing system applied to an electrotometer laboratory, which comprises: the electric test bench is used for placing electric equipment to be tested, and a plurality of test meters are arranged in the electric test bench; the plurality of image acquisition devices are respectively arranged at different orientations of the electric test bench to acquire images of different visual angles of a plurality of test meters in the electric test bench; the computing equipment is in communication connection with the plurality of image acquisition equipment and is used for determining equipment identification of the electrical equipment to be tested, generating and executing a test case set corresponding to the equipment identification, controlling the plurality of image acquisition equipment to acquire a plurality of images after the execution of each test case in the test case set is completed, reading the plurality of images from the plurality of image acquisition equipment and analyzing the images to obtain an actual output result of the electrical equipment to be tested, generating an electrical test result corresponding to each test case according to the actual output result, and generating an electrical test result of the electrical equipment to be tested according to the electrical test result corresponding to each test case in the test case set.
Optionally, generating and executing the test case set corresponding to the device identifier includes: inquiring in a pre-constructed equipment information base according to the equipment identification to obtain a candidate index set of the electrical equipment to be tested; displaying the candidate index set in a screen; the receiving equipment uses a plurality of candidate indexes selected from the candidate index set by personnel, and determines each candidate index in the plurality of candidate indexes as a test index to obtain a test index set; generating a test case corresponding to each test index in the test index set to obtain a test case set, wherein the test case comprises the test indexes, operation content description and expected results; for each test case in the test case set, the operation content description and the test index included in the test case are displayed in a screen so as to prompt the equipment to execute the operation corresponding to the operation content description by using a person.
Optionally, generating an electrical test result corresponding to each test case according to the actual output result includes: determining whether the actual output result is matched with the expected result; if the actual output result is matched with the expected result, a first electrical test result is generated, and the first electrical test result represents that the currently displayed test index meets the test requirement; if the actual output result is not matched with the expected result, a second electrical test result is generated, and the second electrical test result represents that the currently displayed test index does not meet the test requirement.
Optionally, determining the device identifier of the electrical device to be tested includes: reading information in an electronic tag arranged on the electrical equipment to be tested to obtain an equipment identifier and a historical test result of the electrical equipment to be tested, wherein the historical test result comprises a plurality of test time points and test sub-results corresponding to each test time point, the test sub-results comprise test values of each candidate index in the candidate index set, and the test values represent whether the corresponding test indexes meet test requirements.
Optionally, generating and executing the test case set corresponding to the device identifier includes: inquiring in a pre-constructed equipment information base according to the equipment identification to obtain a candidate index set of the electrical equipment to be tested; determining the number of times of non-coincidence corresponding to each candidate index in the candidate index set according to the historical test result, wherein the number of times of non-coincidence represents the number of times that the corresponding candidate index does not accord with the test requirement; sequencing the candidate indexes according to the non-coincidence times respectively corresponding to the candidate indexes to obtain a candidate index sequence; displaying the candidate index sequence in a screen, selecting a plurality of candidate indexes from the candidate index set by a receiving device user, and determining each candidate index in the plurality of candidate indexes as a test index to obtain a test index set; generating a test case corresponding to each test index in the test index set to obtain a test case set, wherein the test case comprises the test indexes, operation content description and expected results; for each test case in the test case set, the operation content description and the test index included in the test case are displayed in a screen so as to prompt the equipment to execute the operation corresponding to the operation content description by using a person.
Optionally, the test case further includes an error range; and generating an electrical test result corresponding to each test case according to the actual output result, including: determining whether a difference between an actual output result and an expected result meets an error range; if the difference between the actual output result and the expected result meets the error range, generating a first electrical test result, wherein the first electrical test result represents that the currently displayed test index meets the test requirement; if the difference between the actual output result and the expected result does not meet the error range, a second electrical test result is generated, and the second electrical test result represents that the currently displayed test index does not meet the test requirement.
Optionally, displaying the candidate index sequence in the screen includes: displaying the candidate index sequences according to the sequence from the large number to the small number of non-conforming times, displaying the candidate indexes of which the non-conforming times are larger than a first time threshold value in the candidate index sequences by adopting a first display mode, and displaying the candidate indexes of which the non-conforming times are smaller than a second time threshold value in the candidate index sequences by adopting a second display mode.
The invention has the following beneficial effects:
1. the intelligent electrical equipment test is realized, the dependence on manpower is reduced, and the learning cost and the test cost of users are reduced. The reason why the existing test mode needs to be sent to a professional detecting mechanism for testing is that: the test relies on professional testers and expert test knowledge, and the equipment users of the electrotometer laboratory lack expert test knowledge and are difficult to test. Based on the above, the electrical equipment testing system provided by the invention automatically generates the test case corresponding to the test index and displays the description of the operation content in the test case, so that the equipment user can know and execute the corresponding operation without additional analysis or learning related professional testing knowledge, and the electrical equipment testing system can be automatically completed in an electrical instrument laboratory and is not required to be sent to a professional testing mechanism for testing. Furthermore, according to the electrical equipment testing system provided by the invention, the actual output result is automatically generated through the images acquired by the plurality of image acquisition devices, the reading and the input of the actual output result are not required to be manually carried out, and further, the electrical testing result is automatically generated, so that the dependence on manual labor is reduced, and the testing cost is further reduced;
2. the history test result can be read from the electronic tag, so that the history test result can be timely inquired;
3. the controller controls the indication lamp corresponding to the corresponding test instrument to be on. Therefore, the device user can be prompted through the lighting of the lamp, the device user does not need to distinguish different test instruments, and the current lighting test instrument can be directly adopted for testing, so that the inaccuracy of an electrical test result caused by the fact that the test instrument cannot be directly observed or the difficulty of distinguishing different test instruments is large is avoided.
Drawings
The above and other features, advantages and aspects of embodiments of the present invention will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. The same or similar reference numbers will be used throughout the drawings to refer to the same or like elements. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.
FIG. 1 is a diagram of an exemplary system architecture of an electrical device testing system of the present invention for use in an electrokinetic laboratory;
FIG. 2 is a schematic view of the structure of an electrical test bench of the invention applied to an electrical equipment testing system of an electrokinetic laboratory;
FIG. 3 is a schematic view of the structure of a partition plate of an electrical test stand in an electrical equipment testing system applied to an electrokinetic laboratory of the present invention;
fig. 4 is an exemplary flow chart of a computing device of the present invention applied to an electrical device testing system of an electrokinetic laboratory to generate electrical test results for an electrical device to be tested.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various 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. It should be understood that the drawings and embodiments of the invention are for illustration purposes only and are not intended to limit the scope of the present invention.
It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like herein are merely used for distinguishing between different devices, modules, or units and not for limiting the order or interdependence of the functions performed by such devices, modules, or units.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those skilled in the art will appreciate that "one or more" is intended to be construed as "one or more" unless the context clearly indicates otherwise.
The names of messages or information interacted between the devices of the present invention are for illustrative purposes only and are not intended to limit the scope of such messages or information.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, there is shown an exemplary system architecture diagram of the electrical device testing system of the present invention applied to an electrokinetic laboratory. As shown in fig. 1, an electrical test stand 101, a plurality of image capture devices 102, and a computing device 103 are included.
As an example, the electrical test bench 101 may be a hollow cube and when testing is required, the electrical device to be tested may be placed in an operating space inside the cube.
In addition, electrical test stand 101 is configured with a plurality of test meters including, but not limited to: voltmeters, ammeter, resistance testers, waveform testers, and the like.
As shown in fig. 2, in order to facilitate the setting of the test meter, a partition board may be provided inside the cube, specifically, a partition board A1A2C1C2 provided in the vertical direction, that is, a partition board 1041, and a partition board B1B2B3B4 provided in the horizontal direction, that is, a partition board 1042, so that the test meter may be fixed on these partition boards with the side on which the display screen is provided facing the image capturing apparatus. Specifically, the display screen of the test meter disposed on the partition in the horizontal direction is directed upward, and the display screen of the test meter disposed on the partition in the vertical direction is directed forward, so that the image capturing apparatus can capture an image of the display screen of the test meter. On this basis, the operation space is the space left after division by the partition plate, that is, the space where the cubes A1A2A3A4-B1B2B3B4 are located. In addition, for the convenience of personnel operation, an operation window can be arranged on the side face of the cube, specifically, an area corresponding to the A3A4B4B3 can be arranged as the operation window, so that the operation such as wiring by the personnel of equipment is facilitated. In addition, as shown in fig. 3, a threading hole (e.g., threading hole 1043) may be provided on the bulkhead so that a connection line of the test meter fixed on the bulkhead may extend into the operation space through the bulkhead via the threading hole.
It should be noted that, according to the need, the partition may be arranged in other manners, for example, two partition may be arranged in parallel, and a space between the two partition may be used as an operation space. The plurality of test meters may be fixed by other means than the partition plate, for example, by a bracket or the like, as needed.
Each side of the cube may be provided with a plurality of image acquisition devices 102. For example, one image capturing device may be provided on the front side and the upper side, respectively. Of course, one image capturing apparatus may be provided on each of the front side, the rear side, the left side, and the right side. The electrical test bench 101 may be of other structures, such as a flat panel, on which the electrical device to be tested may be placed when testing is desired. The image capturing device may employ various industrial cameras, such as a CCD (charge coupled device ) industrial camera. Because different image acquisition devices are respectively arranged at different orientations of the electric test bench 101, different image acquisition devices can shoot a plurality of test meters from different visual angles, and then images at different visual angles can be acquired.
By way of example, the computing device 103 may be a smart phone, a portable computer, a desktop computer, and the like. The computing device 103 is communicatively connected to the plurality of image capture devices 102 so that images in the plurality of image capture devices 102 can be read. Further, the computing device 103 may also be configured with an electronic tag reader, so that information in an electronic tag of the electrical device to be tested may be read. At this time, the above-described computing device 103 may be an electronic computer configured with an electronic tag reader.
With continued reference to fig. 4, fig. 4 is an exemplary flow chart of the computing device of the present invention applied in an electrical device testing system of an electrical instrument laboratory to generate electrical test results for an electrical device to be tested. The method specifically comprises the following steps 401-403:
step 401, determining a device identifier of an electrical device to be tested, and generating and executing a test case set corresponding to the device identifier.
First, the computing device may determine a device identification of the electrical device to be tested. For example, an equipment bar code may be attached to the electrical equipment to be tested, where the equipment bar code includes information such as an equipment identifier. The computing device can control any one of the plurality of image acquisition devices to scan the device bar code to obtain the device identification of the electrical device to be tested. For another example, the information in the electronic tag set on the electrical equipment to be tested can be read by using the electronic tag reader configured by the electronic tag reader, so that the equipment identifier of the electrical equipment to be tested is obtained. The electrical device to be tested can be the electrical device currently required to be tested, and can be any electrical device in an electrotometer laboratory. The electronic tag has a storage space which can be written by a device user, and the storage space can contain a device identifier, a historical test result, a device name, device attribute information and the like.
Second, the computing device may generate and execute a set of test cases corresponding to the device identification. The method specifically comprises the following steps:
firstly, inquiring in a pre-constructed equipment information base according to equipment identification to obtain a candidate index set of the electrical equipment to be tested. The device information base is stored with the device identification and the corresponding candidate index set in a correlated mode. The device information library may be pre-built by a technician and stored in the computing device. The device information base is a corresponding relation table, database and the like which store device identifications and corresponding candidate index sets. Candidate metrics in the candidate metric set include, but are not limited to: voltage, current, power, resistance, inductance, capacitance, waveform of signal, load element temperature, etc. In practice, the candidate index sets corresponding to the electrical equipment to be tested are different according to the electrical equipment to be tested. For example, for a GCFZ-B generator rotor AC impedance tester, the corresponding candidate index sets include voltage, current, impedance, power, frequency.
Second, the candidate index set is displayed in the screen. So that the device user can select a plurality of candidate indexes from the candidate index set by clicking in the screen or the like. The specific selected number can be determined by the equipment user according to the actual situation.
Thirdly, the receiving equipment uses a plurality of candidate indexes selected from the candidate index set by personnel, and determines each candidate index in the plurality of candidate indexes as a test index to obtain the test index set.
Fourth, generating test cases corresponding to each test index in the test index set, and obtaining a test case set, wherein the test cases comprise the test indexes, the operation content description and expected results. For example, each test index is input into the test case generation model corresponding to the electrical equipment to be tested, so as to obtain a test case set corresponding to each test index. The test case generation model is a pre-constructed corresponding relation table. The corresponding relation table is stored with the test index and the corresponding test case set in an associated mode. The correspondence table may be pre-constructed by a technician and stored in the computing device. The correspondence table has a one-to-one correspondence with the electrical devices. As an example, the electrical device to be tested is a direct current step-up device, the test index may be "voltage", the operation content description may be "adjusting the target switch of the electrical device to be tested to be in the first state, and connecting the voltmeter to the dry contact point corresponding to the target switch", and the desired result may be "the voltage at the dry contact point is M".
Fifthly, for each test case in the test case set, displaying operation content description and test indexes included in the test case in a screen so as to prompt a device user to execute an operation corresponding to the operation content description.
In practice, each test case in the test case set can be executed one by one, and after one test case is executed, the next test case is continuously executed until all test cases in the test case set are executed. In addition, after one test case is executed, the device user can perform a switching operation in the screen, for example, click a virtual button for switching, so that the computing device can display the next test case.
And step 402, after execution of each test case in the test case set is completed, controlling a plurality of image acquisition devices to acquire a plurality of images, reading the plurality of images from the plurality of image acquisition devices and analyzing the plurality of images to obtain an actual output result corresponding to each test case.
In some embodiments, after each test case in the test case set is executed, the computing device may control the plurality of image capturing devices to capture a plurality of images, so that the plurality of images may reflect results displayed by the plurality of test meters after the device uses a person to execute the operation.
Specifically, a result recognition model corresponding to the electrical equipment to be tested can be selected from a pre-trained result recognition model pool. The result recognition model can recognize contents displayed in a display screen of the test instrument and output an actual output result. The actual output results may include indicator light color, waveform or curve displayed by the display interface, voltage value displayed by the display interface, current value, etc. The result recognition model may be an image recognition network, and the image recognition network may employ a convolutional neural network and be trained using a training sample set, thereby obtaining the result recognition model. Each training sample in the training sample set comprises a sample image (an image of a display screen of the test instrument) and labeling information, wherein the labeling information is obtained by manual labeling, and the labeling information can represent an actual output result of the electrical equipment to be tested. In the training process, the training sample set needs to include sample images of various test meters to ensure that the contents displayed on the display screen of the various test meters can be identified.
Step 403, generating an electrical test result corresponding to each test case according to the actual output result, and generating an electrical test result of the electrical equipment to be tested according to the electrical test result corresponding to each test case in the test case set.
In some embodiments, the computing device may generate an electrical test result corresponding to each test case according to the actual output result.
For example, according to the actual output result, an electrical test result corresponding to each test case is generated, which includes the following sub-steps:
and step one, determining whether the actual output result is matched with the expected result.
And step two, if the actual output result is matched with the expected result, generating a first electrical test result, wherein the first electrical test result represents that the currently displayed test index meets the test requirement.
And thirdly, if the actual output result is not matched with the expected result, generating a second electrical test result, wherein the second electrical test result represents that the currently displayed test index does not meet the test requirement.
On the basis, according to the electrical test results corresponding to the test cases, electrical test results of the electrical equipment to be tested are generated. For example, the electrical test results corresponding to the test cases may be arranged in a certain order, so as to obtain the electrical test result of the electrical device to be tested.
Through some embodiments of the above, intelligent electrical equipment testing is achieved, and dependence on manpower is reduced. Specifically, in the electrical equipment test system provided by the invention, the test case can be automatically generated aiming at the test index, and the description of the operation content in the test case is displayed, so that equipment users can know and execute the corresponding operation without carrying out additional analysis and learning related professional test knowledge, and the electrical equipment test system can be automatically completed in an electrical instrument laboratory and is not required to be sent to a professional test mechanism for testing.
Further, although some of the above embodiments can produce the technical effects already described, there still exists a second technical problem described in the background section, namely, "the existing test method generally stores the historical test result in a computer of a test mechanism or an electrical laboratory after testing the electrical equipment. When the historical test result needs to be queried, the historical test result cannot be queried timely because the personnel executing the test are different each time.
Based on this, in other embodiments of the present invention, the information in the electronic tag includes historical test results in addition to the device identification of the electrical device to be tested. Because the electronic tag is arranged on the electrical equipment to be tested, when the electronic tag is needed, the history test result of the electrical equipment to be tested can be directly read from the electronic tag, so that the history test result can be conveniently and directly obtained, and the complex query process is omitted.
In this case, determining the device identification of the electrical device to be tested comprises: reading information in an electronic tag arranged on the electrical equipment to be tested to obtain an equipment identifier and a historical test result of the electrical equipment to be tested, wherein the historical test result comprises a plurality of test time points and test sub-results corresponding to each test time point, the test sub-results comprise test values of each candidate index in the candidate index set, and the test values represent whether the corresponding test indexes meet test requirements.
Further, generating and executing a test case set corresponding to the device identifier, including the following steps:
inquiring in a pre-constructed equipment information base according to the equipment identification to obtain a candidate index set of the electrical equipment to be tested;
and determining the number of times of non-coincidence corresponding to each candidate index in the candidate index set according to the historical test result, wherein the number of times of non-coincidence characterizes the number of times that the corresponding candidate index does not accord with the test requirement. Specifically, the historical test result includes a plurality of test time points and test sub-results corresponding to each test time point, and the test sub-results include test values of each candidate index in the candidate index set.
And sequencing the candidate indexes according to the non-coincidence times respectively corresponding to the candidate indexes to obtain a candidate index sequence. Specifically, the candidate index sequences are arranged according to the number of incongruities from large to small, namely, the row with the largest number of incongruities is arranged at the first position, and the row with the smallest number of incongruities is arranged at the tail.
Displaying the candidate index sequence in a screen; alternatively, according to a preset first time threshold, candidate indexes which do not meet the frequency threshold and are larger than the frequency threshold may be determined as recommended indexes. Thus, the index which is easy to deviate in the prior art can be subjected to the priority test. Optionally, the candidate index sequence may be displayed in the order from the large number of non-conforming times to the small number of non-conforming times, the candidate index with the non-conforming times greater than the first number threshold in the candidate index sequence may be displayed in a first display style, and the candidate index with the non-conforming times less than the second number threshold in the candidate index sequence may be displayed in a second display style. So that the personnel can distinguish better.
The receiving equipment uses personnel to select a plurality of candidate indexes from the candidate index set, and determines each candidate index in the plurality of candidate indexes as a test index to obtain a test index set;
generating a test case corresponding to each test index in the test index set to obtain a test case set, wherein the test case comprises the test indexes, operation content description and expected results;
for each test case in the test case set, the operation content description and the test index included in the test case are displayed in a screen so as to prompt the equipment to execute the operation corresponding to the operation content description by using a person.
Further, the test case also includes an error range; and generating an electrical test result of the electrical equipment to be tested according to the actual output result, including:
determining whether a difference between an actual output result and an expected result meets an error range;
if the difference between the actual output result and the expected result meets the error range, generating a first electrical test result, wherein the first electrical test result represents that the currently displayed test index meets the test requirement;
if the difference between the actual output result and the expected result does not meet the error range, a second electrical test result is generated, and the second electrical test result represents that the currently displayed test index does not meet the test requirement.
In these embodiments, the number of non-compliance times for each candidate indicator is determined by reading the historical test results from the electronic tag and based on the historical test results. On the basis, a candidate index sequence is generated according to the number of times of non-coincidence of each candidate index. The candidate index sequences are arranged from large to small according to the number of non-conforming times, so that equipment users can preferentially select candidate indexes with larger non-conforming times.
Further, although some of the above embodiments can produce the technical effects already described, there is still the technical problem described in the background section, namely, "when the test meter is placed on the partition, since the device uses a person to operate in the operation space, the test meter cannot be directly observed, and the difficulty in distinguishing between different meters is great. Based on this, in other embodiments of the present invention, an indicator is disposed on a side of the partition facing the operation space, where each test meter corresponds to an indicator, the indicator corresponding to the test meter currently in operation or the test meter during operation is on, and the indicator corresponding to the test meter currently in operation or not in operation is off. In practice, the on or off of all of the indicator lights on the partition are controlled by a controller that is communicatively coupled to the computing device so that the computing device can control the on or off of the indicator lights by communicating with the controller.
Specifically, in other embodiments of the present invention, after for each test case in the test case set, the operation content description and the test indicators included in the test case are displayed on the screen, so as to prompt the device to use a person to execute the operation corresponding to the operation content description, the computing device may further execute the following operation steps:
step one, inputting the description of the operation content currently displayed in the screen into an entity identification model to obtain entity information contained in the description of the operation content, wherein the entity information is a name of the test instrument. The entity recognition model may be various structures including decision trees, support vector machines, hidden markov models, and the like. After the structure construction is completed, training the structures by using a machine learning method and a training sample set, thereby obtaining an entity identification model. The training samples in the training sample set comprise sample operation content descriptions and corresponding labeling information, and the labeling information characterizes entity information contained in the sample description content descriptions. For example, the sample operation content description is "measure a point voltage with voltmeter", and the corresponding labeling information is "voltmeter". So that the entity recognition model can recognize the test meter names contained in the operation content description.
And step two, the identified entity information is sent to the controller, so that the controller controls the indication lamp corresponding to the corresponding test instrument to be lighted.
And thirdly, inquiring in a pre-established acquisition equipment number list based on the identified entity information to obtain the acquisition equipment number corresponding to the entity information. The acquisition equipment number list comprises numbers of each image acquisition equipment in the plurality of image acquisition equipment and entity information corresponding to each image acquisition number. At this time, the image capturing device corresponds to the entity information (name of the test meter), so that the image capturing device corresponds to the test meter, and may be one-to-one correspondence or one-to-many or many-to-one correspondence as required.
And step four, after each test case in the test case set is executed, controlling the image acquisition equipment corresponding to the acquisition equipment number to acquire a plurality of images in the plurality of image acquisition equipment. In the embodiments, the acquisition device number list is established and adopted, so that the corresponding image acquisition devices are accurately controlled to shoot through the corresponding relation between the image acquisition devices and the test instrument, the number of subsequent image identification is reduced, all the images acquired by the plurality of image acquisition devices are not required to be identified, and the processing efficiency is improved.
And fifthly, when the switching operation of the equipment user is detected, sending indication information representing turning on and off the currently-lighted indication lamp to the controller, and repeatedly executing the first step to the fourth step.
In some of the above embodiments, the test meter name in the operation content description currently displayed in the screen is determined by the entity recognition model. On the basis, the identified entity information is sent to the controller, so that the controller controls the indication lamp corresponding to the corresponding test instrument to be lighted. Therefore, the device user can be prompted through the lighting of the lamp, the device user does not need to distinguish different test instruments, and the test instrument which is lighted at present can be directly adopted for testing, so that the inaccuracy of an electrical test result caused by the fact that the test instrument cannot be directly observed or the operation is distinguished is avoided. In addition, the corresponding image acquisition equipment is accurately controlled to shoot through the corresponding relation between the image acquisition equipment and the test instrument, so that the number of subsequent image identification is reduced, the images acquired by the plurality of image acquisition equipment do not need to be identified, and the processing efficiency is improved.
The above description is only illustrative of the few preferred embodiments of the present invention and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the invention referred to in the present invention is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept described above. Such as the above-mentioned features and the technical features disclosed in the present invention (but not limited to) having similar functions are replaced with each other.
Claims (3)
1. An electrical equipment testing system for use in an electrokinetic laboratory, comprising:
the electric test bench is used for placing electric equipment to be tested, and a plurality of test meters are arranged in the electric test bench;
the plurality of image acquisition devices are respectively arranged at different orientations of the electric test bench to acquire images of different visual angles of a plurality of test meters in the electric test bench;
the computing equipment is in communication connection with the plurality of image acquisition equipment, and is used for determining equipment identification of the electrical equipment to be tested, generating and executing a test case set corresponding to the equipment identification, controlling the plurality of image acquisition equipment to acquire a plurality of images after each test case in the test case set is executed, reading the plurality of images from the plurality of image acquisition equipment and analyzing the plurality of images to obtain an actual output result of the electrical equipment to be tested, generating an electrical test result corresponding to each test case according to the actual output result, and generating an electrical test result of the electrical equipment to be tested according to the electrical test result corresponding to each test case in the test case set;
wherein the determining the device identifier of the electrical device to be tested includes:
reading information in an electronic tag arranged on the electrical equipment to be tested to obtain an equipment identifier and a historical test result of the electrical equipment to be tested, wherein the historical test result comprises a plurality of test time points and test sub-results corresponding to each test time point, the test sub-results comprise test values of each candidate index in a candidate index set, and the test values represent whether the corresponding test indexes meet test requirements;
the generating and executing the test case set corresponding to the equipment identifier includes:
inquiring in a pre-constructed equipment information base according to the equipment identification to obtain a candidate index set of the electrical equipment to be tested;
determining the number of times of non-coincidence corresponding to each candidate index in the candidate index set according to the historical test result, wherein the number of times of non-coincidence represents the number of times that the corresponding candidate index does not accord with the test requirement;
sequencing the candidate indexes according to the non-conforming times respectively corresponding to the candidate indexes to obtain a candidate index sequence;
displaying the candidate index sequence in a screen, and
the receiving equipment selects a plurality of candidate indexes from the candidate index set by using a person, and determines each candidate index in the plurality of candidate indexes as a test index to obtain a test index set;
generating a test case corresponding to each test index in the test index set to obtain a test case set, wherein the test case comprises test indexes, operation content description and expected results;
and for each test case in the test case set, displaying operation content description and test indexes included in the test case in the screen so as to prompt the equipment user to execute the operation corresponding to the operation content description.
2. The electrical device testing system for use in an electrokinetic laboratory of claim 1, wherein the test case further comprises an error range; and
and generating an electrical test result corresponding to each test case according to the actual output result, including:
determining whether a difference between the actual output result and the expected result satisfies the error range;
if the difference between the actual output result and the expected result meets the error range, generating a first electrical test result, wherein the first electrical test result represents that the currently displayed test index meets the test requirement;
and if the difference between the actual output result and the expected result does not meet the error range, generating a second electrical test result, wherein the second electrical test result represents that the currently displayed test index does not meet the test requirement.
3. The electrical device testing system for use in an electrokinetic laboratory of claim 2, wherein the displaying the candidate index sequence in the screen comprises:
displaying the candidate index sequences according to the sequence from the large number to the small number of non-conforming times, displaying the candidate indexes of which the non-conforming times are larger than a first time threshold value in the candidate index sequences by adopting a first display mode, and displaying the candidate indexes of which the non-conforming times are smaller than a second time threshold value in the candidate index sequences by adopting a second display mode.
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