Equipment deformation detection method, system and terminal based on laser interference

Abstract

The invention relates to an equipment deformation detection method and system based on laser interference and a terminal, and relates to the field of laser detection, and the method comprises the steps: obtaining a deformation detection trigger signal of equipment; starting a preset remote laser detection device according to the deformation detection trigger signal, and controlling the remote laser detection device to detect equipment so as to generate equipment deformation detection parameters; non-deformation detection parameters of the equipment are obtained; judging whether the equipment deformation detection parameters meet the requirements of non-deformation detection parameters or not; if yes, continuing to control the remote laser detection device to detect the equipment so as to generate equipment deformation detection parameters; and if not, analyzing the equipment deformation detection parameters and the non-deformation detection parameters to determine actual deformation parameters, and prompting according to the actual deformation parameters. The method and the device have the effect of improving the safety of equipment deformation detection.

Description

Technical Field

[0001] This application relates to the technical field of laser detection, and in particular to a method, system and terminal for detecting equipment deformation based on laser interference. Background Art

[0002] Equipment deformation detection refers to the process of monitoring and analyzing the shape changes that occur to mechanical equipment, structural components or other entities during use through various technical means.

[0003] In the related art, equipment deformation detection mainly relies on workers holding measurement equipment for detection. The operator holds a laser rangefinder, aims at the measurement point on the equipment and triggers the measurement button. By comparing the distance data at different times, it can be analyzed whether the equipment has deformed.

[0004] In view of the above related art, using a manual handheld laser rangefinder to detect equipment deformation often requires close-range detection. During the detection process, the equipment is very likely to be in operation, so it is easy to cause personal injury accidents, resulting in low safety of equipment deformation detection and there is still room for improvement. Summary of the Invention

[0005] In order to improve the safety of equipment deformation detection, this application provides a method, system and terminal for detecting equipment deformation based on laser interference.

[0006] In a first aspect, this application provides a method for detecting equipment deformation based on laser interference, adopting the following technical solution:

[0007] The method for detecting equipment deformation based on laser interference includes:

[0008] Obtain a deformation detection trigger signal of the equipment;

[0009] According to the deformation detection trigger signal, start a preset remote laser detection device, and control the remote laser detection device to detect the equipment to generate equipment deformation detection parameters;

[0010] Obtain non-deformation detection parameters of the equipment;

[0011] Judge whether the equipment deformation detection parameters meet the requirements of the non-deformation detection parameters;

[0012] If they meet, continue to control the remote laser detection device to detect the equipment to generate equipment deformation detection parameters;

[0013] If they do not meet, analyze the equipment deformation detection parameters and the non-deformation detection parameters to determine the actual deformation parameters, and give a prompt according to the actual deformation parameters.

[0014] By adopting the above technical solution, when a deformation detection trigger signal of the device is detected, the remote laser detection device is started to detect the device, so as to obtain device deformation detection parameters. After comparing the device deformation detection parameters with the non-deformation detection parameters and determining that the device is deformed, the actual deformation parameters are determined and a prompt is given, so that it is not necessary for the operator to approach the device for detection, thereby improving the safety of device deformation detection.

[0015] Optionally, the steps of controlling the remote laser detection device to detect the device to generate device deformation detection parameters include:

[0016] Obtain the started parameters and non-started parameters of the device;

[0017] Analyze the started parameters and the preset device priority parameters to determine the started detection order;

[0018] Analyze the non-started parameters and the device priority parameters to determine the non-started detection order;

[0019] Associate the started detection order and the non-started detection order to generate the actual detection order;

[0020] Control the remote laser detection device to detect the device according to the actual detection order to generate device deformation detection parameters.

[0021] By adopting the above technical solution, the started detection order is determined according to the started parameters and the device priority parameters, so as to preferentially detect the device with a higher priority among the started devices. Then, the non-started detection order is determined according to the non-started parameters and the device priority parameters, so that after the detection of the started devices is completed, the non-started devices are detected according to the device priority, so as to ensure the quality of the devices in use, thereby improving the accuracy and reliability of device deformation detection.

[0022] Optionally, the steps of controlling the remote laser detection device to detect the device according to the actual detection order to generate device deformation detection parameters include:

[0023] Obtain the actual detection device based on the actual detection order;

[0024] Obtain the occlusion state detection result of the actual detection device;

[0025] Judge whether the occlusion state detection result meets the requirements of the preset non-occlusion state;

[0026] If it meets the requirements, control the remote laser detection device to detect the actual detection device according to the preset direct detection method to generate device deformation detection parameters;

[0027] If not, the remote laser detection device is controlled according to a preset reflection detection method to detect the actual detection device to generate device deformation detection parameters.

[0028] By adopting the above technical solution, the occlusion state detection result of the actual detection device is called. Thus, when it is determined that the occlusion state detection result meets the requirement of the unoccluded state, it indicates that the detection point of the device is unoccluded. Therefore, the remote laser detection device is controlled according to the direct detection method to detect the actual detection device to obtain the device deformation detection parameters; when it does not meet the requirement, it indicates that the detection point of the device is occluded. Therefore, the remote laser detection device is controlled according to the reflection detection method to detect the actual detection device to obtain the device deformation detection parameters, thereby improving the accuracy and convenience of device deformation detection.

[0029] Optionally, the steps of obtaining the occlusion state detection result of the actual detection device include:

[0030] Determine the laser detection parameters according to the actual detection device and the preset relationship between device detection parameters;

[0031] Control the remote laser detection device to conduct a preliminary detection on the actual detection device according to the laser detection parameters to generate preliminary distance parameters;

[0032] Judge whether the preliminary distance parameters meet the requirements of the laser detection parameters;

[0033] If they meet the requirements, define the preset unoccluded result as the occlusion state detection result;

[0034] If they do not meet the requirements, obtain an occlusion detection image based on the preliminary distance parameters;

[0035] Conduct sub-image recognition and analysis on the occlusion detection image to determine the occlusion state detection result.

[0036] By adopting the above technical solution, after the remote laser detection device conducts a preliminary detection on the actual detection device and obtains the preliminary distance parameters, when it is determined that the preliminary distance parameters do not meet the requirements of the laser detection parameters, an occlusion detection image is collected according to the preliminary distance parameters, thereby determining the occlusion state detection result according to the occlusion detection image, and further improving the accuracy of determining the occlusion state detection result.

[0037] Optionally, the steps of controlling the remote laser detection device to detect the actual detection device according to the preset direct detection method to generate device deformation detection parameters include:

[0038] Obtain the displacement detection result and the actual laser parameters of the actual detection device;

[0039] Judge whether the displacement detection result meets the requirement of the preset non-displacement state;

[0040] If it meets the requirements, control the remote laser detection device to detect the actual detection device according to the actual laser parameters to generate device deformation detection parameters;

[0041] If it does not meet the requirements, obtain the actual displacement angle and the length of the displacement hypotenuse of the actual detection device;

[0042] Analyze the actual displacement angle and the length of the displacement hypotenuse to determine the movement parameters;

[0043] Control the remote laser detection device to adjust its position according to the movement parameters, and control the remote laser detection device to detect the actual detection device according to the actual laser parameters to generate device deformation detection parameters.

[0044] By adopting the above technical solution, when it is determined that the displacement detection result does not meet the requirement of the no-displacement state, it indicates that the actual detection device has undergone displacement, which may lead to inaccurate deformation detection. Therefore, detect the actual displacement angle and the length of the displacement hypotenuse of the actual detection device, calculate the movement parameters based on the two, and then control the remote laser detection device to adjust its position according to the movement parameters, and then control the remote laser detection device to detect the actual detection device according to the actual laser parameters, thereby improving the accuracy of the device deformation detection.

[0045] Optionally, the step of controlling the remote laser detection device to detect the actual detection device according to the preset reflection detection method to generate device deformation detection parameters includes:

[0046] Obtain the displacement detection result of the actual detection device;

[0047] Judge whether the displacement detection result meets the requirement of the preset no-displacement state;

[0048] If it does not meet the requirements, give a prompt according to the preset occlusion displacement prompt information;

[0049] If it meets the requirements, start the preset reflection device, and control the reflection device to assist the remote laser detection device to detect the actual detection device to generate device deformation detection parameters.

[0050] By adopting the above technical solution, when it is determined that the displacement detection result meets the requirement of the no-displacement state, it indicates that although the device is occluded, there is no displacement, which meets the requirement of the reflection detection. Therefore, start the reflection device, control the reflection device to assist the remote laser detection device to detect the actual detection device, thereby improving the convenience of the device deformation detection.

[0051] Optionally, the step of controlling the reflection device to assist the remote laser detection device to detect the actual detection device to generate device deformation detection parameters includes:

[0052] Determine the reflection detection parameters according to the actual detection device and the preset relationship between the device reflection parameters;

[0053] Control the reflection device to adjust the position and angle according to the reflection detection parameters;

[0054] Determine the emission detection parameters according to the actual detection device and the preset relationship between the device emission parameters;

[0055] Control the remote laser detection device to adjust the angle and emit laser towards the reflection device according to the emission detection parameters, and the reflection device reflects the laser to the actual detection device for detection to generate device deformation detection parameters.

[0056] By adopting the above technical solution, control the reflection device to adjust the position and angle according to the reflection detection parameters, so as to ensure that the laser of the remote laser detection device can be accurately reflected on the device by bypassing the obstacle, and control the remote laser detection device to adjust the angle and emit laser towards the reflection device according to the emission detection parameters, thereby improving the accuracy of device deformation detection.

[0057] Optionally, the steps of obtaining the displacement detection result of the actual detection device include:

[0058] Obtain the displacement detection image of the actual detection device;

[0059] Perform image recognition and analysis on the displacement detection image and the preset coordinate system to determine the detection edge coordinates;

[0060] Judge whether the detection edge coordinates meet the requirements of the preset non-displacement coordinates;

[0061] If it meets the requirements, define the preset non-displacement result as the displacement detection result;

[0062] If it does not meet the requirements, define the preset displacement result as the displacement detection result.

[0063] By adopting the above technical solution, detect and collect the displacement detection image of the actual detection device, so as to map the coordinate system in the displacement detection image to identify the detection edge coordinates. When it is determined that the detection edge coordinates meet the requirements of the non-displacement coordinates, it indicates that the device has not undergone displacement. Therefore, define the non-displacement result as the displacement detection result, and when it does not meet the requirements, it indicates that the device has undergone displacement. Therefore, define the displacement result as the displacement detection result, thereby improving the accuracy of determining the displacement detection result.

[0064] In a second aspect, the present application provides a device deformation detection system based on laser interference, adopting the following technical solution:

[0065] A device deformation detection system based on laser interference, comprising:

[0066] An acquisition module, configured to acquire a deformation detection trigger signal and a non-deformation detection parameter;

[0067] A memory, configured to store a program of the device deformation detection method based on laser interference as described in any one of the above;

[0068] A processor, the program in the memory can be loaded and executed by the processor and implement the device deformation detection method based on laser interference as described in any one of the above.

[0069] By adopting the above technical solutions, the processor loads and executes the program of the device deformation detection method based on laser interference stored in the memory, controls the acquisition module to acquire a series of data related to the device deformation detection based on laser interference. Thus, when the deformation detection trigger signal of the device is detected, the remote laser detection device is started to detect the device, so as to obtain the device deformation detection parameter. After comparing the device deformation detection parameter with the non-deformation detection parameter and determining that the device is deformed, the actual deformation parameter is determined and a prompt is given. Therefore, it is not necessary for the operator to approach the device for detection, thereby improving the safety of device deformation detection.

[0070] In a third aspect, the present application provides an intelligent terminal, adopting the following technical solutions:

[0071] An intelligent terminal, including a memory and a processor, and a computer program capable of being loaded and executed by the processor and implementing the device deformation detection method based on laser interference as described in any one of the above is stored on the memory.

[0072] By adopting the above technical solutions, by operating the intelligent terminal, the processor loads and executes the computer program of the device deformation detection method based on laser interference stored in the memory. Thus, when the deformation detection trigger signal of the device is detected, the remote laser detection device is started to detect the device, so as to obtain the device deformation detection parameter. After comparing the device deformation detection parameter with the non-deformation detection parameter and determining that the device is deformed, the actual deformation parameter is determined and a prompt is given. Therefore, it is not necessary for the operator to approach the device for detection, thereby improving the safety of device deformation detection.

[0073] In summary, the present application includes at least one of the following beneficial technical effects:

[0074] 1. When the deformation detection trigger signal of the device is detected, the remote laser detection device is started to detect the device, so as to obtain the device deformation detection parameter. After comparing the device deformation detection parameter with the non-deformation detection parameter and determining that the device is deformed, the actual deformation parameter is determined and a prompt is given. Therefore, it is not necessary for the operator to approach the device for detection, thereby improving the safety of device deformation detection;

[0075] 2. By invoking the occlusion state detection result of the actual detection device, when it is determined that the occlusion state detection result meets the requirement of the unoccluded state, it indicates that the detection point of the device is unoccluded. Therefore, according to the direct detection method, the remote laser detection device is controlled to detect the actual detection device to obtain the device deformation detection parameter; when it does not meet the requirement, it indicates that the detection point of the device is occluded. Therefore, according to the reflection detection method, the remote laser detection device is controlled to detect the actual detection device to obtain the device deformation detection parameter, thereby improving the accuracy and convenience of the device deformation detection;

[0076] 3. When it is determined that the displacement detection result does not meet the requirement of the non-displacement state, it indicates that the actual detection device has displaced, which may lead to inaccurate deformation detection. Therefore, the actual displacement angle and the displacement hypotenuse length of the actual detection device are detected, and the movement parameter is calculated based on the two. Then, the remote laser detection device is controlled to adjust its position according to the movement parameter, and the remote laser detection device is controlled to detect the actual detection device according to the actual laser parameter, thereby improving the accuracy of the device deformation detection. Description of the Drawings

[0077] Figure 1 is a flowchart of the device deformation detection method based on laser interference in an embodiment of the present application.

[0078] Figure 2 is a flowchart of the steps of controlling the remote laser detection device to detect the device to generate the device deformation detection parameter in an embodiment of the present application.

[0079] Figure 3 is a flowchart of the steps of controlling the remote laser detection device to detect the device to generate the device deformation detection parameter according to the actual detection sequence in an embodiment of the present application.

[0080] Figure 4 is a flowchart of the steps of obtaining the occlusion state detection result of the actual detection device in an embodiment of the present application.

[0081] Figure 5 is a flowchart of the steps of controlling the remote laser detection device to detect the actual detection device to generate the device deformation detection parameter according to the preset direct detection method in an embodiment of the present application.

[0082] Figure 6 is a flowchart of the steps of controlling the remote laser detection device to detect the actual detection device to generate the device deformation detection parameter according to the preset reflection detection method in an embodiment of the present application.

[0083] Figure 7 is a flowchart of the steps of controlling the reflection device to assist the remote laser detection device to detect the actual detection device to generate the device deformation detection parameter in an embodiment of the present application.

[0084] Figure 8 It is a flowchart of the steps for obtaining the displacement detection result of the actual detection device in the embodiment of the present application.

[0085] Figure 9 It is a schematic diagram for determining the movement parameter in the embodiment of the present application.

[0086] Figure 10 It is a schematic diagram for the reflection device to assist the remote laser detection device in detection in the embodiment of the present application. Detailed implementation manners

[0087] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the following further describes the present application in detail with reference to the appended Figures 1 to 10 drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0088] The embodiment of the present application discloses a method for detecting device deformation based on laser interference, specifically discloses a processing terminal and a remote laser detection device. The processing terminal is communicatively connected to the remote laser detection device to realize data interaction and control. When the processing terminal receives a device deformation detection trigger signal, the processing terminal responds to the deformation detection trigger signal, thereby controlling the remote laser detection device to detect the device to generate device deformation detection parameters. The processing terminal compares the device deformation detection parameters with the non-deformation detection parameters. When it is determined that the device deformation detection parameters do not meet the requirements of the non-deformation detection parameters, it indicates that the device has deformed. Therefore, the actual deformation parameters are determined according to the device deformation detection parameters and the non-deformation detection parameters, and a prompt is made according to the actual deformation parameters, so that there is no need for personnel to approach the device for detection, thereby improving the safety of device deformation detection.

[0089] Referring to Figure 1 , the embodiment of the present application discloses a method for detecting device deformation based on laser interference, including the following steps:

[0090] Step S100: Obtain a device deformation detection trigger signal.

[0091] Among them, the deformation detection trigger signal refers to a signal for starting to detect the deformation of the device. In one embodiment, it is obtained by an operator inputting in the processing terminal; in another embodiment, the processing terminal activates the deformation detection trigger signal according to a time period.

[0092] Step S101: Start a preset remote laser detection device according to the deformation detection trigger signal, and control the remote laser detection device to detect the device to generate device deformation detection parameters.

[0093] Among them, when the processing terminal receives the deformation detection trigger signal, the processing terminal responds to the deformation detection trigger signal, thereby starting the remote laser detection device and sending an instruction to control the remote laser detection device to detect the device to obtain the device deformation detection parameters. For the specific method, refer to Figure 2 the steps in

[0094] The remote laser detection device refers to a device that uses remote laser to detect the deformation of the device. Based on the principle of light interference, it includes a light source, an interference system, and a data analysis system. The light source usually uses a single-frequency or double-frequency laser to provide stable coherent light. The interference system divides the light beam into two parts, one part irradiates on the device, and the other part serves as a reference beam. When these two beams of light recombine, the phase difference caused by the path difference will form interference fringes on the detector. The data analysis system can accurately calculate the deformation characteristics of the device by analyzing the number and changes of the interference fringes.

[0095] The device deformation detection parameter refers to the distance parameter obtained by the remote laser detection device detecting the device, that is, the distance between the remote laser detection device and the device to-be-detected point.

[0096] Step S102: Obtain the non-deformation detection parameter of the device.

[0097] Among them, the non-deformation detection parameter refers to the distance between the remote laser detection device and the device to-be-detected point when the device does not deform, including three types. One is the non-deformation detection parameter when the device has no displacement and no occlusion, which is the most standard value. One is the non-deformation detection parameter when the device has displacement and no occlusion, which is obtained by adding or subtracting the displacement amount on the basis of the standard value. The last one is the non-deformation detection parameter when the device has no displacement and has occlusion, which is the sum of a direct path and a reflected path. The specific value is determined by the operator according to the distance between the remote laser detection device and the to-be-detected point, and is selected and used by the processing terminal according to the state of the device.

[0098] Step S103: Judge whether the device deformation detection parameter meets the requirements of the non-deformation detection parameter.

[0099] Among them, the requirement of the non-deformation detection parameter means being consistent with the non-deformation detection parameter. The processing terminal judges whether the device deformation detection parameter is consistent with the non-deformation detection parameter, so as to determine whether the distance between the remote laser detection device and the to-be-detected point on the device has changed.

[0100] Step S1031: If it meets the requirements, continue to control the remote laser detection device to detect the device to generate the device deformation detection parameter.

[0101] Among them, if the processing terminal determines that the device deformation detection parameter is consistent with the non-deformation detection parameter, it indicates that the distance between the remote laser detection device and the measurement point on the device has not changed. Therefore, the measurement point has not deformed, and thus the remote laser detection device is continuously controlled to detect the device to obtain the device deformation detection parameter, so as to continuously monitor the deformation situation of the device.

[0102] Step S1032: If not, analyze the device deformation detection parameter and the non-deformation detection parameter to determine the actual deformation parameter, and give a prompt according to the actual deformation parameter.

[0103] Among them, if the processing terminal determines that the device deformation detection parameter is inconsistent with the non-deformation detection parameter, it indicates that the detection point on the device has deformed. Therefore, after analyzing the device deformation detection parameter and the non-deformation detection parameter, the actual deformation parameter is determined, and a prompt is given with the actual deformation parameter to facilitate personnel for maintenance.

[0104] The actual deformation parameter refers to the actual deformation that occurs to the device, which is obtained by the processing terminal calculating the interpolation between the device deformation detection parameter and the non-deformation detection parameter.

[0105] Refer to Figure 2 , the steps of controlling the remote laser detection device to detect the device to generate the device deformation detection parameter include:

[0106] Step S200: Obtain the started parameters and unstarted parameters of the device.

[0107] Among them, the started parameter refers to the device parameter that has been started, and the unstarted parameter refers to the device parameter that has not been started. The started device sends the device identifier to the processing terminal to obtain the started parameter, and the processing terminal identifies the device without sending the device identifier according to all device identifiers, so as to obtain the unstarted parameter.

[0108] Step S201: Analyze the started parameter and the preset device priority parameter to determine the started detection order.

[0109] Among them, the device priority parameter refers to the priority order of all devices in deformation detection, which is determined by the operator according to the importance of the device and uploaded to the processing terminal.

[0110] The started detection order refers to the priority order of deformation detection among the started devices, which is obtained by the processing terminal sorting the devices corresponding to the started parameter according to the device priority corresponding to the device priority parameter.

[0111] Step S202: Analyze the unstarted parameter and the device priority parameter to determine the unstarted detection order.

[0112] Among them, the unstarted detection order refers to the priority order of deformation detection among unstarted devices, which is obtained by the processing terminal sorting the devices corresponding to the unstarted parameters according to the device priorities corresponding to the device priority parameters.

[0113] Step S203: Associate the started detection order and the unstarted detection order to generate the actual detection order.

[0114] Among them, the actual detection order refers to the actual order in which the remote laser detection device detects all devices, which is obtained by the processing terminal placing the started detection order in the front position and the unstarted detection order in the rear position.

[0115] Step S204: Control the remote laser detection device to detect the devices according to the actual detection order to generate device deformation detection parameters.

[0116] Among them, after determining the actual detection order, the processing terminal controls the remote laser detection device to detect the devices one by one according to the actual detection order, so as to obtain the device deformation detection parameters. The specific method refers to Figure 3 the steps, thereby improving the reliability of deformation detection.

[0117] Refer to Figure 3 , the steps of controlling the remote laser detection device to detect the devices according to the actual detection order to generate device deformation detection parameters include:

[0118] Step S300: Obtain the actual detection device based on the actual detection order.

[0119] Among them, the actual detection device refers to the device that the remote laser detection device is currently going to detect, which is obtained by the processing terminal selecting the actual detection device one by one according to the device order corresponding to the actual detection order.

[0120] Step S301: Obtain the detection result of the occlusion state of the actual detection device.

[0121] Among them, the detection result of the occlusion state refers to the detection result of whether the detection point of the actual detection device is occluded by an obstacle, including two results: occluded and unoccluded. The specific obtaining method refers to Figure 4 the steps.

[0122] Step S302: Judge whether the detection result of the occlusion state meets the requirements of the preset unoccluded state.

[0123] Among them, the unoccluded state refers to the state where the detection point of the device is not occluded, and the requirement of the unoccluded state means being consistent with the unoccluded state.

[0124] The processing terminal determines whether the state corresponding to the occlusion state detection result is consistent with the unoccluded state, so as to determine whether there is an obstacle in front of the detection point of the device that affects the remote laser detection device to detect the detection point.

[0125] Step S3021: If it meets the condition, control the remote laser detection device to detect the actual detection device according to the preset direct detection method to generate device deformation detection parameters.

[0126] Among them, if the processing terminal determines that the state corresponding to the occlusion state detection result is consistent with the unoccluded state, it indicates that there is no obstacle blocking in front of the detection point of the device. Therefore, after controlling the remote laser detection device to detect the actual detection device according to the direct detection method, device deformation detection parameters are obtained. The specific method refers to Figure 5 the steps.

[0127] The direct detection method refers to the method in which the remote laser detection device directly emits laser to the detection point on the device, and is stored in the processing terminal by the operator.

[0128] Step S3022: If it does not meet the condition, control the remote laser detection device to detect the actual detection device according to the preset reflection detection method to generate device deformation detection parameters.

[0129] Among them, if the processing terminal determines that the state corresponding to the occlusion state detection result is inconsistent with the unoccluded state, it indicates that there is an obstacle blocking in front of the detection point of the device. Therefore, the remote laser detection device cannot accurately detect the deformation of the device by direct emission. Thus, after controlling the remote laser detection device to detect the actual detection device according to the reflection detection method, device deformation detection parameters are obtained. The specific method refers to Figure 6 the steps.

[0130] Refer to Figure 4 , the steps to obtain the occlusion state detection result of the actual detection device include:

[0131] Step S400: Determine the laser detection parameters according to the actual detection device and the preset relationship between device detection parameters.

[0132] Among them, the relationship between device detection parameters refers to the corresponding relationship between the device and the laser detection parameters. Different devices require different directions, positions, and distances for the remote laser detection device to emit laser. Therefore, the operator forms a mapping table by corresponding the device with the direction, position, and distance of the laser emitted by the remote laser detection device according to the actual situation of the device and the remote laser detection device.

[0133] The laser detection parameters refer to the position and direction of the laser emitted by the remote laser detection device to the device, and are obtained by the processing terminal searching in the mapping table corresponding to the relationship between device detection parameters according to the actual detection device.

[0134] Step S401: Control the remote laser detection device to conduct a preliminary detection on the actual detection device according to the laser detection parameters, so as to generate preliminary distance parameters.

[0135] Among them, after determining the laser detection parameters, control the remote laser detection device to directly irradiate the actual detection device with laser at the position corresponding to the laser detection parameters in the direction corresponding to the laser detection parameters, so as to obtain preliminary distance parameters, providing data support for subsequent determination of whether the device is blocked.

[0136] The preliminary distance parameter refers to the distance value obtained when the remote laser detection device conducts an initial detection on the point to be measured on the device at a standard position and direction.

[0137] Step S402: Determine whether the preliminary distance parameter meets the requirements of the laser detection parameters.

[0138] Among them, the requirements of the laser detection parameters refer to being within the error range of the laser distance in the laser detection parameters, and the specific error range is determined by the operator according to the actual situation.

[0139] The processing terminal determines whether the preliminary distance parameter is within the error range of the laser distance in the laser detection parameters, so as to determine whether there may be obstacles at the detection point of the device.

[0140] Step S4021: If it meets the requirements, define the preset unobstructed result as the occlusion state detection result.

[0141] Among them, if the processing terminal determines that the preliminary distance parameter is within the error range of the laser distance in the laser detection parameters, it indicates that the distance of the preliminary detection is very close to the distance without deformation. At this time, there is no obstacle blocking, so the unobstructed result is defined as the occlusion state detection result.

[0142] The unobstructed result refers to the result that there is no obstacle blocking in front of the detection point of the device, which is stored in the processing terminal by the operator.

[0143] Step S4022: If it does not meet the requirements, obtain an occlusion detection image based on the preliminary distance parameter.

[0144] Among them, if the processing terminal determines that the preliminary distance parameter is not within the error range of the laser distance in the laser detection parameters, it indicates that there is very likely an obstacle in front of the detection point of the device. Therefore, collect the occlusion detection image according to the preliminary distance parameter, providing data support for subsequent determination of the occlusion state.

[0145] The occlusion detection image refers to the image of the possible position of the obstacle, which is obtained by the movable image acquisition component on the remote laser detection device collecting the image after moving the distance corresponding to the preliminary distance parameter.

[0146] Step S403: Perform sub-image recognition and analysis on the occlusion detection image to determine the occlusion status detection result.

[0147] Among them, the occlusion status detection result in this step is consistent with the occlusion status detection result in step S301. The processing terminal calls the occlusion detection image and inputs the occlusion detection image into the trained convolutional neural network for image recognition to determine whether there are obstacles in the image. If there are, the occlusion result is defined as the occlusion status detection result; if not, the non-occlusion result is defined as the occlusion status detection result.

[0148] Refer to Figure 5 , the steps of controlling the remote laser detection device to detect the actual detection device according to the preset direct detection method to generate the device deformation detection parameters include:

[0149] Step S500: Obtain the displacement detection result and the actual laser parameters of the actual detection device.

[0150] Among them, the displacement detection result refers to the detection result of whether the actual detection device has displacement, including two cases: displacement and no displacement. The specific detection method refers to Figure 8 the steps. The actual laser parameters in this step are actually the same as the laser detection parameters in step S400 and will not be elaborated here.

[0151] Step S501: Determine whether the displacement detection result meets the requirements of the preset non-displacement state.

[0152] Among them, the non-displacement state refers to the state where the actual detection device has no displacement, and the requirements of the non-displacement state refer to being consistent with the non-displacement state.

[0153] The processing terminal determines whether the displacement detection result is consistent with the non-displacement state to determine whether the actual detection device has displacement.

[0154] Step S5011: If it meets the requirements, control the remote laser detection device to detect the actual detection device according to the actual laser parameters to generate the device deformation detection parameters.

[0155] Among them, if the processing terminal determines that the displacement detection result is consistent with the non-displacement state, it indicates that the actual detection device has no displacement. Therefore, control the remote laser detection device to emit laser at the position corresponding to the actual laser parameters along the direction corresponding to the actual laser parameters to the actual detection device, so as to obtain the device deformation detection parameters after detecting the actual detection device.

[0156] Step S5012: If it does not meet the requirements, obtain the actual displacement angle and the displacement hypotenuse length of the actual detection device.

[0157] Among them, if the processing terminal determines that the displacement detection result is inconsistent with the non-displacement state, it indicates that the actual detection device has moved. Referring to Figure 9 , the detection point has moved relative to its original position. If the laser is still emitted at the position corresponding to the actual laser parameters, it may lead to inaccurate detection. The remote laser detection device needs to adjust the position in at least one direction to ensure that the laser accurately irradiates the detection point. Therefore, the actual displacement angle and the length of the displacement hypotenuse of the actual detection device are detected to provide data support for subsequent control of the remote laser detection device for detection.

[0158] The actual displacement angle refers to the displacement angle of the actual detection device. Referring to Figure 9 , an industrial camera collects an image above the actual detection device, thereby mapping the coordinate system in the image, and identifying the angle between the contour where the detection point is located and the reference line. The identification of the angle can be obtained by calculating the trigonometric function of the angle through the quotient of the number of pixel points on two sides, and then finding the inverse function to obtain the angle. The length of the displacement hypotenuse refers to the distance between the fixed point on the device and the detection point. Referring to Figure 9 , the processing terminal identifies the number of pixel points between the fixed point and the detection point, and then multiplies the distance represented by the pixel points by the number to obtain the actual length.

[0159] Step S502: Analyze the actual displacement angle and the length of the displacement hypotenuse to determine the movement parameters.

[0160] Among them, the movement parameters refer to the direction and distance that the remote laser detection device needs to adjust. Referring to Figure 9 , the processing terminal determines the movement direction according to the direction where the actual displacement angle is located, calculates the cosine value according to the actual displacement angle, then calculates the product of the cosine value and the length of the displacement hypotenuse to obtain the length of the mapped point of the moved detection point on the original contour, and finally calculates the difference between the length of the displacement hypotenuse and the length of the mapped point to obtain the distance, so as to obtain the movement parameters after associating the direction and the distance.

[0161] Step S503: Control the remote laser detection device to adjust its position according to the movement parameters, and control the remote laser detection device to detect the actual detection device according to the actual laser parameters to generate device deformation detection parameters.

[0162] Among them, after determining the movement parameters, the processing terminal controls the remote laser detection device to adjust its position according to the direction and distance corresponding to the movement parameters, and emits laser light to the detection point of the actual detection device according to the direction corresponding to the actual laser parameters, so as to obtain device deformation detection parameters after detecting the actual detection device.

[0163] Referring to Figure 6, the steps of controlling the remote laser detection device to detect the actual detection device according to the preset reflection detection method to generate device deformation detection parameters include:

[0164] Step S600: Obtain the displacement detection result of the actual detection device.

[0165] Among them, the displacement detection result in this step is the same as the displacement detection result in step S500, which will not be elaborated here.

[0166] Step S601: Determine whether the displacement detection result meets the requirements of the preset no-displacement state.

[0167] Among them, the no-displacement state and the requirements of the no-displacement state in this step are the same as the no-displacement state and the requirements of the no-displacement state in step S501, which will not be elaborated here.

[0168] The processing terminal determines whether the displacement detection result is consistent with the no-displacement state, so as to determine whether the actual detection device being blocked has displaced.

[0169] Step S6011: If not, give a prompt according to the preset occlusion displacement prompt information.

[0170] Among them, if the processing terminal determines that the displacement detection result is inconsistent with the no-displacement state, it indicates that the actual detection device being blocked has also displaced, and it is difficult for the remote laser detection device to detect the device. Therefore, a prompt is given according to the occlusion displacement prompt information, so that the personnel can remove the occlusion or adjust the actual detection device.

[0171] The occlusion displacement prompt information refers to the information that prompts the personnel that the actual detection device is blocked and has displaced, and is stored in the processing terminal by the operator.

[0172] Step S6012: If it meets the requirements, start the preset reflection device and control the reflection device to assist the remote laser detection device to detect the actual detection device to generate device deformation detection parameters.

[0173] Among them, if the processing terminal determines that the displacement detection result is consistent with the no-displacement state, it indicates that the actual detection device being blocked has not displaced, and the actual detection device can be detected by the reflection method. Therefore, after starting the reflection device and controlling the reflection device to assist the remote laser detection device to detect the actual detection device, the device deformation detection parameters are obtained. The specific method refers to Figure 7 the steps.

[0174] The reflection device refers to a device used to reflect the laser so that the laser bypasses the occlusion and irradiates on the device, and a reflector with a high reflectivity can be used.

[0175] Refer to Figure 7, the steps of controlling the reflection device to assist the remote laser detection device to detect the actual detection device to generate device deformation detection parameters include:

[0176] Step S700: Determine the reflection detection parameters according to the actual detection device and the preset device reflection parameter relationship.

[0177] Among them, the device reflection parameter relationship refers to the corresponding relationship between different devices and the reflection detection parameters. The midpoint positions and extension directions between different devices and the remote laser detection device are different. After the operator corresponds different devices with the midpoint positions and extension directions between different devices and the remote laser detection device one by one, a mapping table is formed.

[0178] The reflection detection parameters refer to the position and direction of the reflection device assisting the remote laser detection device to reflect the laser, which are obtained by the processing terminal searching in the mapping table corresponding to the device reflection parameter relationship according to the actual detection device.

[0179] Step S701: Control the reflection device to adjust its position and angle according to the reflection detection parameters.

[0180] Among them, after obtaining the reflection detection parameters, referring to Figure 10 , the reflection device is adjusted to the position corresponding to the reflection detection parameters, which is the midpoint position between the actual detection device and the remote laser detection device, so as to ensure that the reflection device can reflect the laser around the obstacle, and adjust the angle in the direction corresponding to the reflection detection parameters, which is the direction of the line connecting the actual detection device and the remote laser detection device, so as to ensure that the reflected laser can accurately irradiate on the detection point.

[0181] Step S702: Determine the emission detection parameters according to the actual detection device and the preset device emission parameter relationship.

[0182] Among them, the device emission parameter relationship refers to the corresponding relationship between different devices and the emission detection parameters. Different devices require different positions and directions for the remote laser detection device to emit laser to the reflection device. After the operator corresponds different devices with the positions and directions of emitting laser one by one, a mapping table is formed.

[0183] The emission detection parameters refer to the position and direction of the remote laser detection device emitting laser to the midpoint of the reflection device. Referring to Figure 10 , it is obtained by the processing terminal searching in the mapping table corresponding to the device emission parameter relationship according to the actual detection device.

[0184] Step S703: Control the remote laser detection device to adjust the angle and emit laser to the reflection device according to the emission detection parameters, and the reflection device reflects the laser to the actual detection device for detection to generate device deformation detection parameters.

[0185] Among them, after determining the emission detection parameters, the processing terminal adjusts the angle of the remote laser detection device according to the direction corresponding to the emission detection parameters. The position is actually the same as that of the direct detection and has not changed. After adjusting the angle, the remote laser detection device emits laser light towards the reflection device. At this time, the reflection device reflects the laser light onto the detection point on the actual detection device, so as to detect the detection point of the actual detection device and obtain the device deformation detection parameters.

[0186] Refer to Figure 8 , the steps of obtaining the displacement detection result of the actual detection device include:

[0187] Step S800: Obtain the displacement detection image of the actual detection device.

[0188] Among them, the displacement detection image refers to the image of the actual detection device, which is obtained by an industrial camera shooting from the top of the actual detection device.

[0189] Step S801: Perform image recognition and analysis on the displacement detection image and a preset coordinate system to determine the detection edge coordinates.

[0190] Among them, the detection edge coordinates refer to the coordinates of the detection contour in the coordinate system in the displacement detection image. The processing terminal maps the coordinate system onto the displacement detection image, identifies the detection contour in the displacement detection image, and then identifies the coordinates of the corresponding contour to obtain the detection edge coordinates.

[0191] Step S802: Determine whether the detection edge coordinates meet the requirements of the preset no-displacement coordinates.

[0192] Among them, the no-displacement coordinates refer to the coordinates of the detection edge when the device has no displacement. The requirement for the no-displacement coordinates is to be consistent with the no-displacement coordinates.

[0193] The processing terminal determines whether the detection edge coordinates are consistent with the no-displacement coordinates, so as to determine whether the detection edge has shifted.

[0194] Step S8021: If it meets the requirements, define the preset no-displacement result as the displacement detection result.

[0195] Among them, if the processing terminal determines that the detection edge coordinates are consistent with the no-displacement coordinates, it indicates that the detection edge has not shifted. Therefore, the no-displacement result is defined as the displacement detection result.

[0196] The no-displacement result refers to the result that the device has no displacement, which is stored in the processing terminal by the operator.

[0197] Step S8022: If it does not meet the requirements, define the preset displacement result as the displacement detection result.

[0198] Among them, if the processing terminal determines that the detected edge coordinates are inconsistent with the no-displacement coordinates, it indicates that the detected edge has shifted. Therefore, the displacement result is defined as the displacement detection result.

[0199] The displacement result refers to the result of the device's displacement, which is stored by the operator in the processing terminal.

[0200] Based on the same inventive concept, an embodiment of the present application provides a device deformation detection system based on laser interference, including:

[0201] An acquisition module, configured to acquire a deformation detection trigger signal, non-deformation detection parameters, started parameters, non-started parameters, an actual detection device, an occlusion state detection result, an occlusion detection image, a displacement detection result, actual laser parameters, an actual displacement angle, a displacement hypotenuse length, a displacement detection result, and a displacement detection image;

[0202] A memory, configured to store a program of a device deformation detection method based on laser interference;

[0203] A processor, and the program in the memory can be loaded and executed by the processor to implement a device deformation detection method based on laser interference.

[0204] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the above division of each functional module is used as an example. In actual applications, the above functions can be allocated to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0205] An embodiment of the present application provides a computer-readable storage medium, storing a computer program that can be loaded and executed by a processor to implement a device deformation detection method based on laser interference.

[0206] Computer storage media include, for example: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0207] Based on the same inventive concept, an embodiment of the present application provides an intelligent terminal, including a memory and a processor, and a computer program that can be loaded and executed by the processor to implement a device deformation detection method based on laser interference is stored on the memory.

[0208] Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the division of the above functional modules is used as an example for illustration. In actual applications, the above functions can be allocated to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. For the specific working processes of the system, device, and unit described above, reference can be made to the corresponding processes in the foregoing method embodiments, which will not be elaborated herein.

[0209] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Any feature disclosed in this specification (including the abstract and drawings), unless specifically stated, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. A method for detecting device deformation based on laser interference, characterized in that Including: Obtaining a deformation detection trigger signal of the device; Starting a preset remote laser detection device according to the deformation detection trigger signal, and controlling the remote laser detection device to detect the device to generate device deformation detection parameters; Obtaining non-deformation detection parameters of the device; Judging whether the device deformation detection parameters meet the requirements of the non-deformation detection parameters; If they meet, continue to control the remote laser detection device to detect the device to generate device deformation detection parameters; If they do not meet, analyze the device deformation detection parameters and the non-deformation detection parameters to determine the actual deformation parameters, and give a prompt according to the actual deformation parameters; The step of controlling the remote laser detection device to detect the device to generate device deformation detection parameters includes: Obtaining the started parameters and unstarted parameters of the device; Analyzing the started parameters and the preset device priority parameters to determine the started detection order; Analyzing the unstarted parameters and the device priority parameters to determine the unstarted detection order; Associating the started detection order and the unstarted detection order to generate the actual detection order; Controlling the remote laser detection device to detect the device according to the actual detection order to generate device deformation detection parameters; The step of controlling the remote laser detection device to detect the device according to the actual detection order to generate device deformation detection parameters includes: Obtaining the actual detection device based on the actual detection order; Obtaining the occlusion state detection result of the actual detection device; Judging whether the occlusion state detection result meets the requirements of the preset unoccluded state; If it meets, controlling the remote laser detection device to detect the actual detection device according to the preset direct detection method to generate device deformation detection parameters; If it does not meet, controlling the remote laser detection device to detect the actual detection device according to the preset reflection detection method to generate device deformation detection parameters.

2. The method for detecting the deformation of a device based on laser interference according to claim 1, wherein The step of obtaining the occlusion state detection result of the actual detection device includes: Determining the laser detection parameters according to the actual detection device and the preset relationship between device detection parameters; Controlling the remote laser detection device to perform a preliminary detection on the actual detection device according to the laser detection parameters to generate preliminary distance parameters; Judging whether the preliminary distance parameters meet the requirements of the laser detection parameters; If they meet, defining the preset unoccluded result as the occlusion state detection result; If they do not meet, obtaining an occlusion detection image based on the preliminary distance parameters; Performing sub-image recognition analysis on the occlusion detection image to determine the occlusion state detection result.

3. The method for detecting the deformation of a device based on laser interference according to claim 1, wherein The step of controlling the remote laser detection device to detect the actual detection device according to the preset direct detection method to generate device deformation detection parameters includes: Obtaining the displacement detection result and the actual laser parameters of the actual detection device; Judging whether the displacement detection result meets the requirements of the preset non-displacement state; If it meets, controlling the remote laser detection device to detect the actual detection device according to the actual laser parameters to generate device deformation detection parameters; If it does not meet, obtaining the actual displacement angle and the displacement hypotenuse length of the actual detection device; Analyzing the actual displacement angle and the displacement hypotenuse length to determine the movement parameters; Control the remote laser detection device to adjust its position according to the movement parameters, and control the remote laser detection device to detect the actual detection device according to the actual laser parameters to generate device deformation detection parameters.

4. The method for detecting the deformation of a device based on laser interference according to claim 1, characterized in that, The steps of controlling the remote laser detection device to detect the actual detection device according to the preset reflection detection method to generate device deformation detection parameters include: Obtain the displacement detection result of the actual detection device; Judge whether the displacement detection result meets the requirements of the preset no-displacement state; If not, give a prompt according to the preset occlusion displacement prompt information; If so, start the preset reflection device, and control the reflection device to assist the remote laser detection device to detect the actual detection device to generate device deformation detection parameters.

5. The method for detecting deformation of a device based on laser interference according to claim 4, wherein The steps of controlling the reflection device to assist the remote laser detection device to detect the actual detection device to generate device deformation detection parameters include: Determine the reflection detection parameters according to the actual detection device and the preset relationship between device reflection parameters; Control the reflection device to adjust its position and angle according to the reflection detection parameters; Determine the emission detection parameters according to the actual detection device and the preset relationship between device emission parameters; Control the remote laser detection device to adjust its angle and emit laser light towards the reflection device according to the emission detection parameters, and the reflection device reflects the laser light onto the actual detection device for detection to generate device deformation detection parameters.

6. The method for detecting deformation of a device based on laser interference according to claim 3 or 4, characterized in that The steps of obtaining the displacement detection result of the actual detection device include: Obtain the displacement detection image of the actual detection device; Perform image recognition and analysis on the displacement detection image and the preset coordinate system to determine the detection edge coordinates; Judge whether the detection edge coordinates meet the requirements of the preset no-displacement coordinates; If so, define the preset no-displacement result as the displacement detection result; If not, define the preset displacement result as the displacement detection result.

7. A device deformation detection system based on laser interference, characterized in that, Include: An acquisition module for acquiring a deformation detection trigger signal and an invisible deformation detection parameter; A memory for storing the program of the device deformation detection method based on laser interference according to any one of claims 1 to 6; A processor, the program in the memory can be loaded and executed by the processor and implement the device deformation detection method based on laser interference according to any one of claims 1 to 6.

8. An intelligent terminal, characterized in that, It includes a memory and a processor, and a computer program capable of being loaded and executed by the processor and implementing the device deformation detection method based on laser interference according to any one of claims 1 to 6 is stored on the memory.

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