Elevator operation management method

Abstract

The invention discloses an elevator operation management method. The method comprises the steps that 1, a relation table of corresponding relations among operation items, operation action processes, operation key images and first relative position relations is established in advance; 2, determining an operation action process, an operation key image and a first relative position relation of the operation item according to the relation table; 3, determining a second relative position relation and a third relative position relation; step 4, determining a first transition time for changing the relative position relation between the operation part and the operation object from the second relative position relation to the first relative position relation and a second transition time for changing the relative position relation between the operation part and the operation object from the first relative position relation to the third relative position relation; 5, determining a first moment according to the operation process and the operation key image; 6, determining a second moment and a third moment according to the first moment, the first transition time and the second transition time; and step 7, outputting the first switching instruction when the current moment is the second moment, and outputting the second switching instruction when the current moment is the third moment.

Description

TECHNICAL FIELD

[0001] The present application relates to the elevator technical field, specifically relates to a kind of elevator operation management system. BACKGROUND

[0002] Document 1 (CN202311454690.3) proposes a lift system and a lift operation management method, the lift system is provided with: camera, can photograph predetermined operation;Detection unit, according to the first operation for the lift before predetermined operation, detects the start of predetermined operation, according to the second operation for the lift after predetermined operation, detects the end of predetermined operation;And notification unit, when the start of predetermined operation is detected by detection unit, the indication of starting shooting is notified to camera, when the end of predetermined operation is detected by detection unit, the indication of ending shooting is notified to camera.This application starts shooting based on the first operation for the lift before predetermined operation, and ends shooting based on the second operation for the lift after predetermined operation, so that the image when predetermined operation is performed can be reliably limited and obtained, and the dynamic image recording can be avoided for a long time, and the capacity of the dynamic image becomes large, or the dynamic image contains customer information.

[0003] However, as known from the specification

[0041] paragraph and

[0042] paragraph, the camera starts shooting when the operation personnel switches the elevator operation mode from the normal operation mode to the maintenance operation mode by operating the switch, and ends shooting when the operation personnel switches the elevator operation mode from the maintenance operation mode to the normal operation mode;As known from the specification

[0043] paragraph, after the shooting result, the camera transmits the shot dynamic image to the portable terminal, and the extraction unit of the report generation application reads the received dynamic image, extracts the image of finger call confirmation from the dynamic image as a static image, and stores it in time sequence order.Obviously, the camera starts shooting from when the operation personnel switches the elevator from the normal operation mode to the maintenance operation mode until when the operation personnel switches the elevator from the maintenance operation mode to the normal operation mode, but the report generation application only extracts the finger call confirmation image for generating the report, that is, the camera shoots and saves a large number of dynamic images that will not be used for generating the report, so the capacity of the dynamic image shot by the camera is still very large, and there is still room for further reducing the capacity of the dynamic image.

[0004] Therefore, how to further reduce the capacity of dynamic image while meeting the demand of generating report for dynamic image has become a technical problem to be solved. SUMMARY

[0005] The technical problem solved by the present application is how to further reduce the capacity of dynamic images while meeting the demand of generating reports on dynamic graphics during elevator operation.

[0006] To solve the above technical problem, the present application provides an elevator operation management method, comprising: Step 1, a relationship table embodying the correspondence between operation items, operation action processes, operation key images and first relative position relationships is established in advance, the operation action process refers to the action process of the operation performed by the operating part on the operation object when the operating personnel implements the operation item, the operation key image refers to the key image embodying the operation performed by the operating personnel on the operation item, and the first relative position relationship refers to the relative position relationship between the operating part and the operation object in the operation key image; Step 2, for a given operation item, the operation action process, operation key image and first relative position relationship of the operation item are determined according to the relationship table; Step 3, the second relative position relationship and the third relative position relationship are determined according to the operation action process and the operation key image, the second relative position relationship refers to a predetermined relative position relationship between the operating part and the operation object when the operating personnel implements the operation item before reaching the first relative position relationship, and the third relative position relationship refers to a predetermined relative position relationship between the operating part and the operation object when the operating personnel implements the operation item after reaching the first relative position relationship; Step 4, the first transition time required for the relative position relationship between the operating part and the operation object when the operating personnel implements the operation item to change from the second relative position relationship to the first relative position relationship is determined according to the first relative position relationship, the second relative position relationship and the operation action process, and the second transition time required for the relative position relationship between the operating part and the operation object when the operating personnel implements the operation item to change from the first relative position relationship to the third relative position relationship is determined according to the first relative position relationship, the third relative position relationship and the operation action process; Step 5, the first time corresponding to the operation key image is determined according to the operation process and the operation key image; Step 6, the second time and the third time are determined according to the first time and the first transition time and the second transition time; Step 7, the current time is monitored, and the first switching instruction is output when the current time is the second time, and the second switching instruction is output when the current time is the third time, the first switching instruction refers to the instruction of switching the current first camera shooting accuracy to the second camera shooting accuracy, and the second switching instruction refers to the instruction of switching the second camera shooting accuracy to the first camera shooting accuracy.

[0007] Preferably, the second relative position relationship and the third relative position relationship enable the operation action process located therein to meet the requirement of evaluating the operation of the operator in the operation action process, and the second relative position relationship enables the first transition time to be greater than a ninth threshold value, and the third relative position relationship enables the first transition time to be greater than a tenth threshold value.

[0008] Preferably, the step 5 first determines a first position of the operation key image in the operation action process, then determines a second position of the operation currently performed by the operator in the operation action process, then estimates a first time required from a starting point of the operation action process to the first position, and finally takes a time corresponding to the current time after the first time as the first time.

[0009] The present application also provides an elevator operation management method, comprising: Step 1, a relationship table embodying the correspondence among an operation item, an operation action process, an operation key image and a first relative position relationship is established in advance, the operation action process refers to the action process of the operation performed by an operating part on an operation object when the operator implements the operation item, the operation key image refers to a key image embodying the operation performed by the operator on the operation item which must be collected and uploaded, and the first relative position relationship refers to the relative position relationship between the operating part and the operation object in the operation key image; Step 2, for a given operation item, the operation action process, the operation key image and the first relative position relationship of the operation item are determined according to the relationship table; Step 3, the first time corresponding to the operation key image is determined according to the operation process and the operation key image; Step 4, a time corresponding to the first time after a time allowance is taken as a second time, and a time corresponding to the first time after the time allowance is taken as a third time; Step 5, the current time is monitored, and a first switching instruction is output when the current time is the second time, and a second switching instruction is output when the current time is the third time, the first switching instruction refers to an instruction of switching the current first camera shooting accuracy to a second camera shooting accuracy, and the second switching instruction refers to an instruction of switching the second camera shooting accuracy to the first camera shooting accuracy.

[0010] Preferably, the time allowance satisfies that the dynamic image shot with the second camera shooting accuracy contains the operation key image, and there are dynamic images satisfying the time length requirement before and after the operation key image; or the dynamic image shot with the second camera shooting accuracy can contain the whole process of the operation action of the operating part on the operation object in the operation key image.

[0011] Preferably, the step 5 judges whether the second time is reached by using any of the following methods: Method one: Step A1, determining the moving track of the operation part before the key image according to the process of the operation part applying the operation action to the operation object; Step A2, determining the relative position of the operation part to the operation object at the second time according to the moving track and the relative position of the operation part to the operation object in the key image; Step A3, synthesizing the reference image at the second time according to the relative position of the operation part to the operation object at the second time and the key image; Step A4, comparing the image obtained from the image processing result with the reference image at the second time, and judging that the operation execution progress reaches the second time when the difference between the relative position of the operation part to the operation object in the image processing result and the relative position of the operation part to the operation object in the reference image is less than the threshold value.

[0012] Method two: Step B1, determining the moving track of the operation part before the key image according to the process of the operation part applying the operation action to the operation object; Step B2, determining the relative position of the operation part to the operation object at the second time according to the moving track and the relative position of the operation part to the operation object in the key image; Step B3, further identifying and determining the relative position of the operation part to the operation object in the image obtained from the image processing result; Step B4, comparing the relative position of the operation part to the operation object obtained from the image processing result with the relative position of the operation part to the operation object at the second time, and judging that the operation execution progress reaches the second time when the comparison result shows that the difference between the two is less than the threshold value.

[0013] Preferably, the step 5 judges whether the third time is reached by any of the following methods: Method one: Step A1, determining the moving track of the operation part after the key image according to the process of the operation part applying the operation action to the operation object; Step A2, determining the relative position of the operation part to the operation object at the third time according to the moving track and the relative position of the operation part to the operation object in the key image; Step A3, synthesizing the reference image at the third time according to the relative position of the operation part to the operation object at the third time and the key image; Step A4, comparing the image obtained from the image processing result with the reference image at the third time, and judging that the operation execution progress reaches the third time when the difference between the relative position of the operation part to the operation object in the image processing result and the relative position of the operation part to the operation object in the reference image is less than the threshold value. Method two: Step B1, determining the moving track of the operation part after the operation key image according to the operation action of the operation part on the operation object; Step B2, determining the relative position of the operation part to the operation object at the third time according to the moving track and the relative position of the operation part to the operation object in the operation key image; Step B3, further identifying and determining the relative position of the operation part to the operation object in the image obtained from the image processing result; Step B4, comparing the relative position of the operation part to the operation object obtained from the image processing result with the relative position of the operation part to the operation object at the third time, and judging that the operation execution progress reaches the third time when the comparison result shows that the difference between the two is less than a threshold value.

[0014] Preferably, the step B2 determines the relative position of the operation part to the operation object by determining the distance between the operation part and the operation object and the angle of the operation part to the operation object.

[0015] Preferably, the step B2 converts the image obtained from the image processing result and the operation key image to the same target scene for comparison according to the offset angle and the distance difference.

[0016] Preferably, the step B2 calculates the offset angle and the distance difference according to the following steps: Step P1, selecting a component, determining the geometric shape of the component in the image and the geometric shape of the component in the converted target scene; Step P2, determining the angle to be adjusted corresponding to the change of the geometric shape of the component in the image to the geometric shape of the component in the target scene, and taking the angle as the offset angle; Step P3, determining the distance between the operation part and the operation object in the image; Step P4, converting the distance between the operation part and the operation object in the image to the distance between the operation part and the operation object in the converted target scene according to the offset angle, and taking the distance difference between the two as the distance difference.

[0017] Preferably, in the conversion, the relative position of the operation part to the operation object selects a polar coordinate system, taking one of the operation part and the operation object as the origin of the polar coordinate system, and taking the length and angle of the connecting line between the two as the coordinates of the other one of the operation part and the operation object.

[0018] The present application realizes the reduction of the total amount of dynamic images by adopting different camera shooting accuracies and reasonably determining the switching time of the camera shooting accuracy, while ensuring the generation requirement of the report. DETAILED DESCRIPTION Example 1

[0019] In order to regulate the elevator maintenance and repair work, it is necessary to generate a visual work report according to the work process of the work personnel. In order to facilitate the recording of the work process, an elevator work management system is implemented. The elevator work management system includes a receiving device, a camera, a control device and a processing device. The receiving device is used to receive work item information. The camera is used to shoot the work process and transmit the shooting result to the processing device, and the camera has a first shooting accuracy as a default shooting accuracy and a second shooting accuracy higher than the first shooting accuracy. The control device controls the start and stop of the camera shooting and the switching of the shooting accuracy. The processing device is used to issue a switching instruction of the shooting accuracy. The switching instruction includes a first switching instruction for switching the shooting accuracy from the first shooting accuracy to the second shooting accuracy, and a second switching instruction for switching the shooting accuracy from the second shooting accuracy to the first shooting accuracy. After the work personnel completes all the work procedures according to the work item, the work report can be generated by the relevant App on the smart phone of the work personnel. The App generates the report according to the work action process, the work key image of the work item, and the time sequence. The work personnel can edit, add notes and instructions, etc.

[0020] For the above-mentioned elevator work management system, the embodiment provides an elevator work management method to realize the switching between different shooting accuracies, which can provide dynamic images with high shooting accuracy required for report generation, and reduce the total amount of dynamic images.

[0021] The elevator work management method provided by the embodiment includes the following steps: Step 1, a relationship table embodying the corresponding relationship between the work item, the work action process, the work key image and the first relative position relationship is established in advance, the work action process refers to the action process of the work performed by the operating part on the work object when the work personnel performs the work item, the work key image refers to the key image embodying the work personnel performing the work item which must be collected and uploaded, and the first relative position relationship refers to the relative position relationship between the operating part and the work object in the work key image; the above-mentioned relationship table is contained in the work item information and can be obtained by the receiving device; the operating part refers to the hand of the work personnel or the tool used when performing the work; Step 2, for a given work item, the work action process, the work key image and the first relative position relationship of the work item are determined according to the relationship table; Step 3, determining a second relative position relationship and a third relative position relationship according to the job action process and the job key image, the second relative position relationship being a predetermined relative position relationship of the operating part and the job object before reaching the first relative position relationship when the job personnel implements the job item, and the third relative position relationship being a predetermined relative position relationship of the operating part and the job object after reaching the first relative position relationship when the job personnel implements the job item; Step 4, determining a first transition time required for changing the relative position relationship of the operating part and the job object from the second relative position relationship to the first relative position relationship when the job personnel implements the job item according to the first relative position relationship, the second relative position relationship and the job action process, and determining a second transition time required for changing the relative position relationship of the operating part and the job object from the first relative position relationship to the third relative position relationship when the job personnel implements the job item according to the first relative position relationship, the third relative position relationship and the job action process; Step 5, determining the first time according to the job process and the job key image; Step 6, determining the second time and the third time according to the first time and the first transition time and the second transition time; Step 7, monitoring the current time, and outputting a first switching instruction when the current time is the second time, and outputting a second switching instruction when the current time is the third time, the first switching instruction being an instruction of switching from the current first shooting accuracy to the second shooting accuracy, and the second switching instruction being an instruction of switching from the second shooting accuracy to the first shooting accuracy.

[0022] The second relative position relationship and the third relative position relationship make the job action process located therein meet the need of evaluating the job of the job personnel in the job action process, and the second relative position relationship makes the first transition time greater than a ninth threshold value, and the third relative position relationship makes the first transition time greater than a tenth threshold value.

[0023] The step 5 first determines a first position of the job key image in the job action process, then determines a second position of the job currently performed by the job personnel in the job action process, then estimates a first time required from a starting point of the job action process to the first position, and finally takes a time corresponding to the current time after delaying the current time by the first time as the first time. Embodiment 2

[0024] The embodiment is directed to the elevator job management system mentioned in embodiment 1, and provides another elevator job management method to realize switching between different shooting accuracies.

[0025] The elevator operation management method provided by the embodiment comprises the following steps: Step 1, a relationship table embodying the correspondence between an operation item, an operation action process, an operation key image and a first relative position relationship is established in advance, the operation action process refers to the action process of the operation performed by an operation part on an operation object when an operation personnel performs the operation item, the operation key image refers to a key image embodying the operation performed by the operation personnel on the operation item which must be collected and uploaded, and the first relative position relationship refers to the relative position relationship between the operation part and the operation object in the operation key image; Step 2, for a given operation item, the operation action process, the operation key image and the first relative position relationship of the operation item are determined according to the relationship table; Step 3, the first time corresponding to the operation key image is determined according to the operation process and the operation key image; Step 4, the time corresponding to the first time after being advanced by a time margin is taken as the second time, and the time corresponding to the first time after being delayed by a time margin is taken as the third time; Step 5, the current time is monitored, and the first switching instruction is output when the current time is the second time, and the second switching instruction is output when the current time is the third time, the first switching instruction refers to the instruction of switching the current first camera shooting accuracy to the second camera shooting accuracy, and the second switching instruction refers to the instruction of switching the second camera shooting accuracy to the first camera shooting accuracy.

[0026] The time margin satisfies that the dynamic image shot with the second camera shooting accuracy contains the operation key image, and there are dynamic images satisfying the time length requirement before and after the operation key image; or the dynamic image shot with the second camera shooting accuracy can contain the whole process of the operation action of the operation part on the operation object in the operation key image. Embodiment 3

[0027] The embodiment is further limited and described based on the embodiment 2.

[0028] For the operation key image, the requirements usually include the accuracy of the image (which is guaranteed by the camera shooting accuracy under the control of the control device), the relative size and position of the operation object in the image (the position of the operation object in the image is adjusted by reminding the operation personnel to adjust the head angle to adjust the shooting angle, and the size adjustment can be realized by adjusting the distance between the camera and the operation object), and the angle of the camera relative to the operation object when shooting (the shooting angle is adjusted by reminding the operation personnel to adjust the head angle). In addition to these points, the most important thing is the image content, that is, according to the purpose of the image to be realized, which contents are shot, that is, which information is expected to be embodied in the image.

[0029] The image content that the key image needs to contain has been specified in Embodiment 2, and the second time and the third time are determined according to the process of the operation part exerting the operation action on the work object. Now the problem is how to determine whether the second time or the third time has come.

[0030] Since the time margin can ensure that the dynamic image taken with the second imaging accuracy contains the work key image, and there are dynamic images meeting the time length requirement before and after the work key image; or the dynamic image taken with the second imaging accuracy can contain the whole process of the operation part exerting the operation action on the work object in the work key image, step 5 can determine whether the second time has come by using any of the following methods: Method one: Step A1, determining the moving track of the operation part before the work key image according to the process of the operation part exerting the operation action on the work object; Step A2, determining the relative position of the operation part relative to the work object at the second time according to the moving track and the relative position of the operation part relative to the work object in the work key image; Step A3, synthesizing the reference image at the second time according to the relative position of the operation part relative to the work object at the second time and the work key image; Step A4, comparing the image obtained from the image processing result with the reference image at the second time, and determining that the work execution progress has reached the second time when the difference between the relative position of the operation part relative to the work object in the image processing result and the relative position of the operation part relative to the work object in the reference image is less than a threshold value.

[0031] Method two: Step B1, determining the moving track of the operation part before the work key image according to the process of the operation part exerting the operation action on the work object; Step B2, determining the relative position of the operation part relative to the work object at the second time according to the moving track and the relative position of the operation part relative to the work object in the work key image; Step B3, further recognizing and determining the relative position of the operation part relative to the work object in the image obtained from the image processing result; Step B4, comparing the relative position of the operation part relative to the work object obtained from the image processing result with the relative position of the operation part relative to the work object at the second time, and determining that the work execution progress has reached the second time when the comparison result shows that the difference between the two is less than a threshold value.

[0032] Step 5 can determine whether the third time has come by using any of the following methods: Method one: Step A1, determining the moving track of the operation part after the operation key image according to the process of the operation action of the operation part on the operation object; Step A2, determining the relative position of the operation part to the operation object at the third time according to the moving track and the relative position of the operation part to the operation object in the operation key image; Step A3, synthesizing the reference image at the third time according to the relative position of the operation part to the operation object at the third time and the operation key image; Step A4, comparing the image obtained from the image processing result with the reference image at the third time, and judging that the operation execution progress has reached the third time when the difference between the relative position of the operation part to the operation object in the image processing result and the relative position of the operation part to the operation object in the reference image is less than a threshold value; Method two: Step B1, determining the moving track of the operation part after the operation key image according to the process of the operation action of the operation part on the operation object; Step B2, determining the relative position of the operation part to the operation object at the third time according to the moving track and the relative position of the operation part to the operation object in the operation key image; Step B3, further identifying and determining the relative position of the operation part to the operation object in the image obtained from the image processing result; Step B4, comparing the relative position of the operation part to the operation object obtained from the image processing result with the relative position of the operation part to the operation object at the third time, and judging that the operation execution progress has reached the third time when the comparison result shows that the difference between the two is less than a threshold value.

[0033] In the method two for judging whether the second time or the third time has been reached, the operation key image can be in the form of an image or a description of the specific requirements for the relative position of the operation part to the operation object (i.e. the distance between the operation part and the operation object and the angle of the operation part relative to the operation object) in the key image.

[0034] In the above methods, the relative position of the operation part to the operation object is involved. Generally, the relative position of the operation part to the operation object includes the distance between the operation part and the operation object and the angle of the operation part relative to the operation object. Therefore, in order to determine whether the second time or the third time has been reached by using the above methods, the distance between the operation part and the operation object and the angle of the operation part relative to the operation object need to be determined.

[0035] When the work key image is an image (i.e. a picture), the image must be obtained by shooting the work object at a certain angle, which is called the standard angle in the following. There will be a certain angle difference between the shooting angle (called the actual angle in the following) of the image actually shot by the work personnel and the standard angle. Even if the relative position (i.e. distance and offset angle) of the operation part corresponding to the standard angle relative to the work object is exactly the same as the real relative position (i.e. distance and offset angle) of the operation part corresponding to the actual angle relative to the work object, when the angle difference exists, the image at the shooting angle and its image recognition result (i.e. the image plane size, which is the distance and offset angle on the image plane obtained according to the image, and is not the result converted to the stereogram, i.e. the real scene) and the image at the actual angle and its image recognition result will also be different. The methods to solve the problem include: 1) one of them is directly converted to the other, and then the converted one is compared with the other at the same angle; 2) both of them are converted to the real scene respectively, and then the two in the real scene are compared. In method 3, only the actual shooting result needs to be converted to the real scene. Similarly, in addition to the offset angle, there is another influencing factor, i.e. the distance between the camera and the work object when the camera shoots the work key image and the distance between the camera and the work object when the camera shoots the work personnel working, which will also cause the same problem as the offset angle, so it also needs to be converted. In summary, step B2 of method two converts the image obtained by processing the image and the work key image to the same target scene according to the offset angle and the distance difference for comparison.

[0036] Obviously, as long as the offset angle and the distance difference are obtained, the above conversion can be realized by using relevant mathematical knowledge such as geometry. Specifically, step B2 calculates the offset angle and the distance difference according to the following steps: Step P1, select a component, determine the geometric shape of the component in the image and the geometric shape of the component in the target scene for conversion; Step P2, determine the angle to be adjusted corresponding to the change of the geometric shape of the component in the image to the geometric shape of the component in the target scene, and take the angle as the offset angle; Step P3, determine the distance between the operation part and the work object in the image; Step P4, convert the distance between the operation part and the work object in the image to the distance between the operation part and the work object in the target scene for conversion according to the offset angle, and take the distance difference between the two distances as the distance difference.

[0037] Preferably, in the conversion, the relative position of the operation part and the work object selects a polar coordinate system, one of the operation part and the work object is taken as the origin of the polar coordinate system, and the length and angle of the connecting line between them are taken as the coordinates of the other of the operation part and the work object.

[0038] The application is described in detail above through specific embodiments and examples, but these do not constitute a limitation on the application. Those skilled in the art can also make many modifications and improvements without departing from the principles of the application, and these should also be considered as within the protection scope of the application.

Claims

1. An elevator work management method characterized by comprising: The method comprises the following steps: Step 1, a relationship table embodying the corresponding relationship between a work item, a work action process, a work key image and a first relative position relationship is established in advance, the work action process refers to the action process of the operation part to the work object when the work personnel implements the work item, the work key image refers to the key image embodying the work personnel implementing the work item which must be collected and uploaded, and the first relative position relationship refers to the relative position relationship between the operation part and the work object in the work key image; Step 2, for a given work item, the work action process, the work key image and the first relative position relationship of the work item are determined according to the relationship table; Step 3, the second relative position relationship and the third relative position relationship are determined according to the work action process and the work key image, the second relative position relationship refers to a predetermined relative position relationship of the operation part and the work object when the work personnel implements the work item before reaching the first relative position relationship, and the third relative position relationship refers to a predetermined relative position relationship of the operation part and the work object when the work personnel implements the work item after reaching the first relative position relationship; Step 4, the first transition time required for the relative position relationship between the operation part and the work object when the work personnel implements the work item to change from the second relative position relationship to the first relative position relationship is determined according to the first relative position relationship, the second relative position relationship and the work action process, and the second transition time required for the relative position relationship between the operation part and the work object when the work personnel implements the work item to change from the first relative position relationship to the third relative position relationship is determined according to the first relative position relationship, the third relative position relationship and the work action process; Step 5, the first time corresponding to the work key image is determined according to the work process and the work key image; Step 6, the second time and the third time are determined according to the first time and the first transition time and the second transition time; Step 7, the current time is monitored, and the first switching instruction is output when the current time is the second time, and the second switching instruction is output when the current time is the third time, the first switching instruction refers to the instruction of switching the current first camera shooting accuracy to the second camera shooting accuracy, and the second switching instruction refers to the instruction of switching the second camera shooting accuracy to the first camera shooting accuracy.

2. The elevator work management method according to claim 1, characterized by, The second relative position relationship and the third relative position relationship enable the work action process located therein to meet the needs of evaluating the work of the work personnel in the work action process, and the second relative position relationship enables the first transition time to be greater than a ninth threshold value, and the third relative position relationship enables the first transition time to be greater than a tenth threshold value.

3. The elevator work management method according to claim 1, characterized by, The step 5 firstly determines the first position of the work key image in the work action process, then determines the second position of the work currently performed by the work personnel in the work action process, then estimates the first time required from the starting point of the work action process to the first position, and finally takes the time corresponding to the current time after being delayed by the first time as the first time.

4. An elevator work management method characterized by The method comprises the following steps: Step 1, a relationship table embodying the correspondence between a work item, a work action process, a work key image and a first relative position relationship is established in advance, the work action process refers to the action process of the operation part to the work object when the work personnel implements the work item, the work key image refers to the key image embodying the work personnel implementing the work item which must be collected and uploaded, and the first relative position relationship refers to the relative position relationship between the operation part and the work object in the work key image; Step 2, for a given work item, the work action process, the work key image and the first relative position relationship of the work item are determined according to the relationship table; Step 3, the first time corresponding to the work key image is determined according to the work process and the work key image; Step 4, the time corresponding to the first time after a time allowance is taken as the second time, and the time corresponding to the first time after a time allowance is taken as the third time; Step 5, the current time is monitored, and the first switching instruction is output when the current time is the second time, and the second switching instruction is output when the current time is the third time, the first switching instruction refers to the instruction of switching from the current first camera shooting accuracy to the second camera shooting accuracy, and the second switching instruction refers to the instruction of switching from the second camera shooting accuracy to the first camera shooting accuracy.

5. The elevator work management system according to claim 4, characterized by The time allowance satisfies that the dynamic image shot with the second camera shooting accuracy contains the work key image, and there are dynamic images meeting the time length requirement before and after the work key image; or the dynamic image shot with the second camera shooting accuracy can contain the whole process of the work action of the operation part to the work object in the work key image.

6. The elevator work management system according to claim 4, characterized by Step 5 uses any of the following methods to determine whether the second time has been reached: Method one: Step A1, the moving track of the operation part before the work key image is determined according to the process of the work action of the operation part to the work object; Step A2, the relative position of the operation part to the work object at the second time is determined according to the moving track and the relative position of the operation part to the work object in the work key image; Step A3, the reference image at the second time is synthesized according to the relative position of the operation part to the work object at the second time and the work key image; Step A4, the image obtained by image processing is compared with the reference image at the second time, when the difference between the relative position of the operation part to the work object in the image processing result and the relative position of the operation part to the work object in the reference image is less than a threshold value, it is judged that the work execution progress has reached the second time; Method two: Step B1, the moving track of the operation part before the work key image is determined according to the process of the work action of the operation part to the work object; Step B2, the relative position of the operation part to the work object at the second time is determined according to the moving track and the relative position of the operation part to the work object in the work key image; Step B3, the relative position of the operation part to the work object in the image obtained from the image processing result is further recognized and determined; Step B4, comparing the relative position of the operation part to the work object from the image processing result with the relative position of the operation part to the work object at the second time, when the comparison result shows that the difference between the two is less than the threshold, it is determined that the work execution progress has reached the second time.

7. The elevator work management method according to claim 4, characterized by, The step 5 determines whether the third time has arrived by any of the following methods: Method 1: Step A1, determining the moving track of the operation part after the work key image according to the process of the work action applied by the operation part to the work object; Step A2, determining the relative position of the operation part to the work object at the third time according to the moving track and the relative position of the operation part to the work object in the work key image; Step A3, synthesizing the reference image at the third time according to the relative position of the operation part to the work object at the third time and the work key image; Step A4, comparing the image from the image processing result with the reference image at the third time, when the difference between the relative position of the operation part to the work object in the image processing result and the relative position of the operation part to the work object in the reference image is less than the threshold, it is determined that the work execution progress has reached the third time; Method 2: Step B1, determining the moving track of the operation part after the work key image according to the process of the work action applied by the operation part to the work object; Step B2, determining the relative position of the operation part to the work object at the third time according to the moving track and the relative position of the operation part to the work object in the work key image; Step B3, obtaining the image from the image processing result and further identifying and determining the relative position of the operation part to the work object in the image; Step B4, comparing the relative position of the operation part to the work object from the image processing result with the relative position of the operation part to the work object at the third time, when the comparison result shows that the difference between the two is less than the threshold, it is determined that the work execution progress has reached the third time.

8. The elevator work management method according to claim 6 or 7, characterized in that, The step B2 determines the relative position of the operation part to the work object by determining the distance between the operation part and the work object and the angle of the operation part relative to the work object.

9. The elevator work management method according to claim 8, characterized by, The step B2 compares the image from the image processing result with the work key image by converting them to the same target scene according to the offset angle and the distance difference.

10. The elevator work management method according to claim 9, characterized by The step B2 calculates the offset angle and the distance difference according to the following steps: Step P1, selecting a component, determining the geometry of the component in the image and the geometry of the component in the converted target scene; Step P2, determining the angle to be adjusted corresponding to the change of the geometry of the component in the image to the geometry of the component in the target scene, and taking the angle as the offset angle; Step P3, determining the distance between the operation part and the work object in the image; Step P4, converting the distance between the operation part and the work object in the image to the distance between the operation part and the work object in the converted target scene according to the offset angle, and taking the distance difference between the two as the distance difference.

11. The elevator work management method according to claim 9, characterized by, In the conversion, the relative position of the operation unit and the work object is selected in a polar coordinate system, one of the operation unit and the work object is set as the origin of the polar coordinate system, and the length and angle of the connecting line between them are set as the coordinates of the other of the operation unit and the work object.