WO2023246284A1

WO2023246284A1 - Safety inspection method and system for elevator of wind turbine generator, and device

Info

Publication number: WO2023246284A1
Application number: PCT/CN2023/090498
Authority: WO
Inventors: 王向伟; 张澄辉; 刘佳; 刘敬; 李桂朋; 孟一非; 张丹松; 马达; 王林; 肖雪
Original assignee: 华能承德风力发电有限公司
Priority date: 2022-06-21
Filing date: 2023-04-25
Publication date: 2023-12-28
Also published as: DE202023101135U1; JP3244086U; CN115140626A

Abstract

A safety inspection method and system for an elevator of a wind turbine generator, and a device. The method comprises: step 1, before each operation of an elevator, comparing the current number of times of lifting/lowering of the elevator with a preset threshold number of times, to determine whether the elevator needs to be inspected; step 2, obtaining image information outside the elevator, and determining whether a user wears protection equipment correctly; and step 3, outputting alarm information, so that on one hand, fault warning is provided for the elevator by means of an external terminal, and on the other hand, a voice broadcast prompt about the reason why the elevator cannot be normally started is given by means of a voice prompt module. The safety inspection method and system for an elevator of a wind turbine generator and the device are used for solving the problem, during use of an elevator of a wind turbine generator, of low safety in riding the elevator caused by a worker's neglection to inspect the elevator, and protection equipment wearing non-compliance.

Description

A safety detection method, system and device for wind turbine van lifting equipment

Technical field

The present invention relates to the technical field of elevator safety monitoring, and specifically to a safety detection method, system and device for wind turbine box-type lifting equipment.

Background technique

At present, with the promotion of box-type lifting equipment for wind turbines, the box-type lifting equipment is installed in the tower of the wind turbine to facilitate maintenance personnel to enter the engine room from the tower base. With the long-term use of box-type lifting equipment, it is necessary to check the mechanical strength of the car, the parking gear lever on the top of the car, the car control box, and the wear and tear of the car ropes. In actual use, some users There are certain dangers in using lifting equipment without checking the relevant equipment, and using lifting equipment without wearing relevant protective equipment. For this purpose, we propose a safety detection method, system and device for wind turbine box-type lifting equipment.

Contents of the invention

The object of the present invention is to provide a safety detection method, system and device for wind turbine van-type lifting equipment, so as to solve the problem in the background technology that workers tend to neglect the inspection work of the lifting equipment and wear unqualified protective equipment, resulting in the safety of riding the lifting equipment. The problem of low sex.

The embodiment of the present invention provides a safety detection method for wind turbine van-type lifting equipment, which includes the following steps:

Step 1: Before each operation of the lifting equipment, based on the comparison between the current lifting times of the lifting equipment and the preset threshold number of times, determine whether the lifting equipment needs to be inspected; if the current lifting times If the number of times exceeds the threshold, the safety check circuit of the lifting equipment will be cut off. After the safety check circuit is manually turned on, the number of elevator lifts will return to zero;

Step 2: Obtain the external image information of the lifting equipment, extract the characteristic parameters of the image information for correctly wearing the protective equipment, and use the trained part detection model to identify the part features of the image information to determine whether the user is wearing the protective equipment correctly;

Step 3: Output the alarm information. On the one hand, the external terminal provides a fault warning for the lifting equipment. On the other hand, through the voice prompt module, the voice broadcast prompts the reason why the elevator cannot start normally.

The invention also provides a safety detection system for wind turbine van-type lifting equipment, including:

Equipment monitoring module: The equipment monitoring module includes a safety inspection circuit and a control switch module connected to the lifting equipment startup circuit. The safety inspection circuit includes a plurality of touch switches connected in series. The touch switches are arranged on the lifting equipment. At multiple components, the output ends of multiple touch switches are connected with relays. The control switch module is used to send control signals to control the conduction state of multiple touch switches; the counting module is used to collect and lift equipment. The number of lifting and lowering; image acquisition module: located outside the lifting equipment, used to collect human body image information; communication module: used to communicate with external terminals; controller: used according to the equipment monitoring module and/or image acquisition module The detection results control the switching and lifting of the lifting equipment; power module: the power module is electrically connected to the controller, image recognition device, and equipment monitoring module respectively; alarm module: the alarm module is communicatively connected to the controller, and the alarm module is Audible alarm.

Further, the system further includes a temporary start-up circuit, which includes a bypass button connected in parallel at both ends of the safety inspection circuit.

Further, the components include top baffle, wire rope, driving gear, control box and anti-fall device.

Further, the system further includes a cloud server communicatively connected to the controller through a communication module.

The invention also provides a touch switch used in a safety detection system. The touch switch includes a touch detection component, a pressure detection component, a feedback component and a reset component: the touch detection component is used to detect touches on the touch switch. , and generate a touch detection signal; the pressure detection component is used to detect the pressure of the touch switch; the feedback component is used to feed back the status of the touch switch; the reset component is used to pop open the pressure detection component .

The invention also provides an image acquisition device used in a safety detection system. The image acquisition device includes: a camera for collecting video information outside the elevator to obtain human body image information outside the elevator; an image recognition module including a camera for detecting images The first identification model of whether the person wearing the safety helmet and the second identification model of whether the climbing protective equipment is correctly worn are used.

Further, the image acquisition device further includes a voice prompt module, which is used to output voice information of the recognition results of the first recognition model and the second recognition model.

The present invention also provides an electronic device. The electronic device includes: a processor and a memory communicatively connected to the processor; wherein the memory stores instructions that can be executed by the processor, and the instructions are executed by the processor. The processor executes, so that the processor can execute the steps of the security detection method described in claim 1.

The present invention also provides a computer-readable storage medium. A program for implementing a security detection method is stored on the computer-readable storage medium. The program for implementing the security detection method is executed by a processor to implement the method described in claim 1. Steps of security testing methods.

The beneficial effects of the present invention include:

1. A safety detection method and image recognition device for wind turbine van-type lifting equipment of the present invention By continuously improving the protective equipment wearing feature model through machine learning, it can identify whether the user is wearing relevant protective equipment before entering the lifting equipment to avoid accidents caused by user negligence;

2. A safety detection system for wind turbine van-type lifting equipment of the present invention. By adding detection devices to multiple components, detection work at multiple locations needs to be completed at the same time before the lifting equipment can be started, which can prevent users from using the lifting equipment. Omissions in equipment inspection work;

3. A touch switch of the present invention used in a safety detection system. The controller controls the on and off of the touch switch, without the need for a mechanical switch to achieve on and off;

4. An image acquisition device used in a safety detection system of the present invention can complete the detection of relevant protective equipment before the user enters the elevator, and can provide intuitive feedback on the reasons why the user cannot ride on the lifting equipment, and does not require high manpower. cost.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings needed to be used in the embodiments of the present invention will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, so This should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic flow chart of a safety detection method for van lifting equipment provided by an embodiment of the present invention;

Figure 2 is a schematic diagram of the safety monitoring system for van lifting equipment provided by an embodiment of the present invention;

Figure 3 is a schematic flow chart of a safety monitoring system for van lifting equipment provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. line description.

It should be noted that similar reference numerals and letters represent similar items in the following figures, therefore, once an item is defined in one figure, it does not need further definition and explanation in subsequent figures. It should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship shown, or the orientation or positional relationship in which the invention product is customarily placed when used, is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation. , is constructed and operated in a specific orientation and therefore cannot be construed as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions and shall not be understood as indicating or implying relative importance.

Please refer to Figures 1 to 3. Figure 1 is a safety detection method for wind turbine van lifting equipment provided by an embodiment of the present invention. As shown in Figure 1, it includes the following steps:

Step 1: Before each operation of the lifting equipment, based on the comparison between the current lifting times of the lifting equipment and the preset threshold number of times, determine whether the lifting equipment needs to be inspected; if the current lifting times exceed the threshold number, the safety of the lifting equipment will be cut off Check the circuit. After the safety check circuit is manually turned on, the number of elevator lifts will return to zero;

In step 1, the number of times the lifting equipment can be lifted and lowered is determined by the threshold number, and based on the threshold number of times, the number of times the lifting equipment can be operated is limited through the safety check circuit; after the safety check circuit is cut off, the lifting equipment cannot be started and needs to be turned on manually. Safely check multiple switches on the circuit and continue using the cycle.

In step 2, the training process of the part monitoring model includes: obtaining a plurality of first sample portrait pictures marked with correct wearing of helmets, second sample portrait pictures of incorrectly worn helmets, and correct wearing of climbing protective equipment. The third sample portrait image and the fourth sample portrait image of not wearing climbing protective equipment correctly use the data enhancement method of Mosaic in YOLOv4 to merge a certain number of sample images into one training image; the synthesized first image The personal portrait training picture and the second sample portrait training picture are input into the first training set and the first test set respectively according to the ratio of 5:1 to obtain the first recognition model. The synthesized third sample portrait training picture and the fourth sample portrait are The training images are also input into the second training set and the second test set respectively according to the ratio of 5:1 and the second recognition model is obtained;

It should be noted that in order to avoid misjudgment of the work situation by the system, the binding matching method can be used to combine "head wearing a helmet" and "head without a helmet" and "body wearing protective equipment" and "body without protective equipment" are respectively used as two different monitoring targets, which can effectively avoid misjudgment.

In step 3, the information output by the voice prompt module is the recognition result of the safety inspection circuit and part monitoring model, for example: not wearing a safety helmet correctly, not wearing a safety helmet, not wearing climbing protection equipment correctly, not wearing Climbing protective equipment, please check lifting equipment, please check certain components, etc.

The present invention also provides a safety detection system for van-type lifting equipment of wind turbines. Figure 2 is a schematic diagram of the safety monitoring system for van-type lifting equipment provided by the present invention. As shown in Figure 2, it includes:

Equipment monitoring module: The equipment monitoring module includes a safety check circuit and a control switch module connected to the lifting equipment startup circuit. The safety check circuit includes multiple touch switches connected in series. Off, the touch switches are arranged on multiple components of the lifting equipment, the output ends of the multiple touch switches are connected with relays, and the control switch module is used to send control signals to control the multiple touch switches. On-state; counting module: used to collect the lifting times of the lifting equipment; image acquisition module: located outside the lifting equipment, used to collect human body image information; communication module: used to communicate with external terminals; controller: used according to The detection results of the equipment monitoring module and/or the image acquisition module control the switching and lifting of the lifting equipment; power module: the power module is electrically connected to the controller, image recognition device, and equipment monitoring module respectively; alarm module: the alarm The module is communicatively connected with the controller, and the alarm module is a sound and light alarm.

In the above structure, the controller can be a controller with a data processing function in the prior art, such as a microcontroller, but the present invention is not limited thereto. It can also be other suitable types of controllers. The controller can be The counting module records the number of lifts and falls of the lifting equipment. When the number of lifts and falls of the lifting equipment reaches the threshold range of the number of lifts, it means that multiple parts of the lifting equipment need to be inspected. At this time, the control switch module controls multiple contacts. If the control switch pops up, the lifting equipment cannot be used anymore; if you want to use the lifting equipment, you must trigger the touch switch of each detection device before using the lifting equipment. If the touch switch at any position is not triggered, the lifting equipment cannot be started.

The image recognition device is communicatively connected with the controller, and the image recognition device is located outside the lifting equipment; if the image recognition device recognizes that the user does not wear protective equipment and/or wears protective equipment incorrectly, the controller sends a command to Sound and light alarm, the sound and light alarm issues a warning to remind the user to wear protective equipment.

Preferably, the system further includes a temporary start-up circuit, and the temporary start-up circuit includes a bypass button connected in parallel at both ends of the safety inspection circuit.

In the above structure, in order to prevent the lifting equipment from being damaged during the lifting process, a temporary starting circuit is set up to ensure that after a certain device is damaged, the bypass button can be pressed to respond. Emergency connection of the starting circuit of the lifting equipment starts the lifting equipment to prevent workers from being trapped in the lifting equipment.

Preferably, in this embodiment, the touch switches are detachably installed on the top baffle, wire rope, driving gear, control box and anti-fall device of the lifting equipment, and are connected in series to the starting circuit of the lifting equipment using wires, but Not limited to the above components, touch switches can also be installed on other components of the lifting equipment according to actual application requirements.

Preferably, the system further includes a cloud server communicatively connected to the controller through a communication module.

In the above structure, the cloud server is connected to the controller through wireless communication. Workers can use external terminals to access the cloud server to implement remote detection of the lifting equipment. The relevant data of the lifting equipment can be queried through the cloud server, further enhancing the practicality of the system. .

In the above structure, the touch detection component in this embodiment uses a capacitive flexible touch circuit film, and the pressure detection component uses a pressure sensor. The two are used together to detect the finger touching the switch surface and the pressure exerted on the switch to achieve capacitive detection. The on-off signal of the touch switch is changed and output to the control switch module. The control switch module receives the signal of each touch switch, including the signal of the capacitive flexible touch circuit film and the pressure sensor, and performs logical judgment processing. The outer surface of the touch switch is also equipped with an LED prompt light to realize the light signal prompt of the touch switch status. During the inspection work, the LED prompt light on the outer surface of the touch switch facilitates the inspector to judge the status of the touch switch.

In the above structure, the image information of people outside the lifting equipment is collected through the camera, and the image information is uploaded to the system controller. The controller uses existing artificial intelligence technology to detect whether the user is wearing protective equipment. If the protective equipment If the equipment is worn correctly, a command is sent to control the opening of the door of the lifting equipment. If the relevant protective equipment is not worn, the lifting equipment cannot be used.

In the above structure, the voice prompt module uses an existing voice broadcaster, and the voice broadcaster is used to read the monitoring results of the first recognition model and the second recognition model and broadcast them.

It should be noted that the data communication, data processing, cloud services, image recognition and other control programs in the present invention are mature conventional technologies in the prior art. Those skilled in the art can implement the present invention based on the principles of the same functions in the prior art. application of the invention, the program part is not an innovation of the invention point.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A safety detection method for wind turbine box-type lifting equipment, which is characterized by including the following steps:

Step 1: Before each operation of the lifting equipment, based on the comparison between the current lifting times of the lifting equipment and the preset threshold number of times, determine whether the lifting equipment needs to be inspected; if the current lifting times exceed the threshold number, the safety of the lifting equipment will be cut off Check the circuit. After the safety check circuit is manually turned on, the number of elevator lifts will return to zero;

Step 2: Obtain the external image information of the lifting equipment, extract the characteristic parameters of the image information for correctly wearing the protective equipment, and use the trained part detection model to identify the part features of the image information to determine whether the user is wearing the protective equipment correctly;

Step 3: Output the alarm information. On the one hand, the external terminal provides a fault warning for the lifting equipment. On the other hand, through the voice prompt module, the voice broadcast prompts the reason why the elevator cannot start normally.
A safety detection system for wind turbine van-type lifting equipment, which is characterized by including:

Equipment monitoring module: The equipment monitoring module includes a safety inspection circuit and a control switch module connected to the lifting equipment startup circuit. The safety inspection circuit includes a plurality of touch switches connected in series. The touch switches are arranged on the lifting equipment. At multiple components, the output ends of multiple touch switches are connected with relays. The control switch module is used to send control signals to control the conduction state of multiple touch switches; the counting module is used to collect and lift equipment. The number of lifting and lowering; image acquisition module: located outside the lifting equipment, used to collect human body image information; communication module: used to communicate with external terminals; controller: used according to the equipment monitoring module and/or image acquisition module The detection results control the switching and lifting of the lifting equipment; power module: the power module is electrically connected to the controller, image recognition device, and equipment monitoring module respectively; alarm module: the alarm module is connected to The controller is connected through communication, and the alarm module is an audible and visual alarm.
The safety detection system according to claim 2, wherein the system further includes a temporary start-up circuit, and the temporary start-up circuit includes bypass buttons connected in parallel at both ends of the safety inspection circuit.
The safety detection system according to claim 2, wherein the components include a top baffle, a wire rope, a driving gear, a control box and an anti-fall device.
The safety detection system according to any one of claims 2 to 4, characterized in that the system further includes a cloud server communicatively connected to the controller through a communication module.
A touch switch applied to the safety detection system according to any one of claims 2 to 5, characterized in that the touch switch includes a touch detection component, a pressure detection component, a feedback component and a reset component: the touch switch The detection component is used to detect the touch on the touch switch and generate a touch detection signal; the pressure detection component is used to detect the pressure of the touch switch; the feedback component is used to feed back the status of the touch switch; The reset component is used to pop open the pressure detection component.
An image acquisition device applied to the safety detection system according to any one of claims 2 to 5, characterized in that the image acquisition device includes: a camera: used to collect video information outside the elevator to obtain an image of the human body outside the elevator Information; an image recognition module, including a first recognition model for detecting whether the person in the image is wearing a safety helmet and a second recognition model for detecting whether the person in the image is wearing climbing protective equipment correctly.
The image acquisition device according to claim 7, characterized in that the image acquisition device further includes a voice prompt module, the voice prompt module is used to output voice information of the recognition results of the first recognition model and the second recognition model.
An electronic device, characterized in that the electronic device includes: a processor and a memory communicatively connected to the processor; wherein the memory stores instructions that can be executed by the processor, and the instructions are The processor executes, so that the processor can execute the steps of the security detection method described in claim 1.
A computer-readable storage medium, characterized in that a program for implementing a security detection method is stored on the computer-readable storage medium, and the program for implementing the security detection method is executed by a processor to implement the method described in claim 1 Steps of security testing methods.