CN210879689U - Intelligent robot suitable for subway vehicle train inspection work - Google Patents

Intelligent robot suitable for subway vehicle train inspection work Download PDF

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Publication number
CN210879689U
CN210879689U CN201921911108.0U CN201921911108U CN210879689U CN 210879689 U CN210879689 U CN 210879689U CN 201921911108 U CN201921911108 U CN 201921911108U CN 210879689 U CN210879689 U CN 210879689U
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intelligent robot
inspection work
arm
train inspection
platform
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CN201921911108.0U
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Chinese (zh)
Inventor
杨凯
梁斌
高春良
王峰
廖伟
佘纪宇
张维彬
其他发明人请求不公开姓名
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Chengdu Shengkai Technology Co., Ltd
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Chengdu Tiean Science & Technology Co ltd
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Abstract

The embodiment of the utility model discloses an intelligent robot suitable for subway vehicle train inspection work, including motion platform, arm, panorama shooting camera and two mesh cameras, arm and panorama shooting camera set up on the motion platform, two mesh cameras set up on the arm; like this, through the panorama shooting camera carries out panorama scanning to the vehicle that awaits measuring, then passes through motion platform drives arm and binocular camera move, the rethread the arm is nimble will binocular camera transports to shoot the position and carry out state acquisition to the target object to obtain the image that more is favorable to carrying out image recognition and calculation, simultaneously, through the target object image that the binocular camera acquireed can reconstruct the three-dimensional structure of this target object, further can avoid the harmful effects of factors such as dust, illumination, water stain to the image recognition result.

Description

Intelligent robot suitable for subway vehicle train inspection work
Technical Field
The utility model relates to an intelligent robot especially relates to an intelligent robot suitable for subway vehicle train examines work.
Background
Subway vehicles are important components in urban rail transit, run on railway tracks and are responsible for carrying guests. The subway vehicle has a complex structure, and in order to ensure the daily safe operation of the subway vehicle, the subway vehicle needs to return to a special overhaul warehouse for train inspection after carrying tasks are executed every day. The train inspection content mainly comprises the loosening, the breakage, the loss, the deformation and the like of parts of the subway vehicle. The train inspection method mainly comprises manual inspection and manual maintenance.
At present, with the progress of technology, machines are gradually adopted to replace part of manpower to train and inspect the metro vehicles in the train inspection work, wherein the machines are mainly responsible for inspecting the metro vehicles, and repair tasks are manually executed according to inspection results. When the subway vehicle inspection system is used, an 'automatic inspection robot' is arranged in an inspection trench, and then the bottom of the subway vehicle is detected by adopting a visual inspection method. However, in the inspection, since the photographing devices for the vision inspection on the existing robots are generally fixedly mounted on the automatic inspection robot, the use is often inconvenient, and the existing automatic inspection robot cannot construct the three-dimensional contour of the target object during the inspection, so that the detection result is not accurate, and the robot is easily affected by dust, light, water stain and other factors.
SUMMERY OF THE UTILITY MODEL
For solving above technical problem, the embodiment of the utility model provides an intelligent robot suitable for subway vehicle train examines work, can come more nimble adjustment shooting device's position through the setting of arm to make the image position who acquires the target better, and can construct the three-dimensional profile of target through the binocular camera that sets up, improve the result precision that detects, avoid receiving the harmful effects of factors such as dust, illumination, water stain easily.
In order to achieve the above purpose, the embodiment of the present invention provides a technical solution that:
the embodiment of the utility model provides an intelligent robot suitable for subway vehicle train examines work, including motion platform, arm, panorama shooting camera and two mesh cameras, arm and panorama shooting camera set up motion platform is last, two mesh cameras set up on the arm.
In the embodiment of the present invention, the motion platform is provided with a transmission device.
The embodiment of the utility model provides an in, the last lift platform that sets up of motion platform, the arm is installed lift platform is last. The embodiment of the utility model provides an in, set up laser radar on the motion platform, laser radar includes leading laser radar and rearmounted laser radar, wherein, follows motion platform's moving direction, leading laser radar sets up motion platform's one end, rearmounted laser radar sets up motion platform's the other end.
In an embodiment of the present invention, the motion platform is provided with a SLAM system, the SLAM system includes:
the scanning module is used for acquiring distance information between the robot and a peripheral object;
the algorithm module is connected with the scanning module and used for constructing the distance information into map data and positioning the real-time coordinate of the robot in the map;
and the processing module is connected with the scanning module and the algorithm module and is used for calculating a virtual navigation path or calculating a virtual destination parking point.
In the embodiment of the present invention, the motion platform is provided with a positioning sensor.
The embodiment of the utility model provides an in, the position sensor comprises axletree location laser range finder and wheel location laser range finder.
In the embodiment of the present invention, the bottom of the motion platform is provided with a differential wheel drive.
In the embodiment of the present invention, the outer surface edge of the motion platform is provided with an air bag triggering device.
The embodiment of the utility model provides an intelligent robot suitable for subway vehicle train inspection work, this intelligent robot includes motion platform, arm, panorama shooting camera and binocular camera, arm and panorama shooting camera set up on the motion platform, binocular camera sets up on the arm; like this, through the panorama shooting camera carries out panorama scanning to the vehicle that awaits measuring, then through control motion platform drives the binocular camera removes, the rethread the nimble control of arm the binocular camera adjusts to the three-dimensional profile of shooting the position to the target and gathers to obtain the image that more is favorable to carrying out image identification and calculation, simultaneously, through the binocular camera makes the image that acquires the target, can reconstruct the three-dimensional structure of this target, further can avoid the harmful effects of the image identification result of factors such as dust, illumination, water stain.
Drawings
Fig. 1 is a schematic front view of an intelligent robot according to an embodiment of the present invention;
fig. 2 is a schematic top view of a structure of an intelligent robot according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of an SLAM system according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The embodiment of the utility model provides an intelligent robot suitable for subway vehicle train examines work, as shown in fig. 1 and 2, including motion platform 1, arm 2, panorama shooting camera and two mesh cameras 4, arm 2 and panorama shooting camera set up on the motion platform 1, two mesh cameras 4 set up on the arm 2.
Here, the motion platform 1 is a commercially available mobile platform, which may be a crawler-type mobile platform, or may be another platform structure having a mobile function. Motion platform 1 is the box form, and when using, in the gallery that is used for overhauing is generally arranged in to motion platform 1, motion platform 1 can remove along the gallery to overhaul subway car.
A panoramic shooting camera is arranged in the mobile platform 1, wherein the panoramic shooting camera is a combination of a linear array camera and a line laser. The resolution ratio of the line-scan camera is not less than 2k, the power of the laser is not less than 7W, the laser usually adopts the wavelength of 808nm, and the lens position of the panoramic shooting camera can be arranged at the top of the mobile platform 1 or at other positions which are convenient for the panoramic shooting camera to carry out panoramic shooting.
The mobile platform 1 is further provided with a mechanical arm 2, the mechanical arm 2 is provided with the binocular camera 4, and the binocular camera 4 generally comprises two industrial cameras, a plane light source and a laser structure light source. The pixels of the industrial camera are not less than 200 thousands, the binocular camera 4 can be adjusted to a shooting position for shooting the target to be detected through the driving of the mechanical arm 2, so that an image of the target to be detected is obtained, meanwhile, the binocular camera 4 is adopted for shooting to obtain a clear image of the target object, the state of the target object is visually judged, three-dimensional information of the target object can be obtained, and the size, the distance and the like of key components are measured. Meanwhile, the interference of factors such as dust, illumination, water stain and the like on intelligent judgment is eliminated.
Specifically, the number of joints of the mechanical arm 2 is not less than 6, and the arm span length is not less than 800mm, so that the detection of the target objects with different posture requirements can be met by adopting a multi-degree-of-freedom mechanical arm mode.
More specifically, set up control system in the robot, control system is including being used for handling the panorama shooting camera with the image acquisition module of binocular camera 4, be used for control the platform control module that motion platform 1 removed, be used for control 2 each articular arm drive module of arm and the central processing unit who is used for receiving and dispatching, handles remote host computer signal, the image acquisition module the platform control module with arm drive module all with central processing unit connects. Therefore, when the central processing unit receives a processing signal of the remote host, the image acquisition module, the platform control module and the mechanical arm driving die can be subjected to driving control, so that shooting work is carried out, and a shot image is sent to the remote host.
Further, a transmission device 11 is arranged on the motion platform 1.
Here, the transmission device 11 may be connected to a remote host through a wired connection, or may be connected to the remote host through a wireless connection (e.g., a wireless network), so as to transmit the acquired image information to the staff.
Further, in the embodiment of the present invention, a lifting platform 5 is disposed on the motion platform 1, and the mechanical arm 2 is mounted on the lifting platform 5.
Here, the elevating platform 5 is used to change the position of the binocular camera 4, thereby satisfying the target object detection under different height requirements. Specifically, a groove is formed in the motion platform 1, the lifting platform 5 is arranged in the groove, and the lifting platform 5 can be a platform driven by hydraulic pressure or driven by other power elements.
Specifically, the control system further comprises a lifting control module for controlling the lifting platform 5 to lift, wherein the lifting control module is connected with the central processing unit.
Further, in the embodiment of the utility model provides an in, set up lidar on motion platform 1, lidar includes leading lidar 61 and rearmounted lidar 62, wherein, follows motion platform 1's direction of movement, leading lidar 61 sets up motion platform 1's one end, rearmounted lidar 62 sets up motion platform 1's the other end.
Here, the front laser radar 61 cannot complete 360 ° scanning due to the robot mechanical setup, and there is a blind field of view when the robot is retracted. It is therefore necessary to add the rear lidar 62, in particular, the front lidar 61 is used for map scanning, navigation, positioning, obstacle detection, and the rear lidar 62 may be used for avoiding collision of the moving platform 1 with an obstacle located at a distance. The front-end lidar 61 and the rear-end lidar 62 are all commercially available products, and therefore, are not described herein.
Further, as shown in fig. 3, the moving platform 1 is provided with a SLAM system including:
the scanning module is used for acquiring distance information between the robot and a peripheral object;
the algorithm module is connected with the scanning module and used for constructing the distance information into map data and positioning the real-time coordinate of the robot in the map;
and the processing module is connected with the scanning module and the algorithm module and is used for calculating a virtual navigation path or calculating a virtual destination parking point.
The SLAM system mainly comprises a data acquisition module, a visual odometer, a rear-end algorithm, a map construction part and a loop detection part. The data acquisition module is the scanning module, the back-end algorithm is the algorithm module, the processing module is composed of the visual odometer, the map construction and the loop detection, when the data acquisition module is used, the scanning module is the data acquisition module, the visual odometer estimates relative motion (ego-motion) at two moments by analyzing data acquired by the data acquisition module, the back-end algorithm processes errors of the visual odometer, the map construction establishes map information according to motion tracks, and the loop detection eliminates spatial accumulated errors by analyzing data at different moments in the same scene. The more special part of the back-end algorithm module adopts a hybrid positioning technology, the first step of data acquisition (namely, the data acquired by adopting the front laser radar 61) comprises laser radar original data, odometer data and gyroscope data, the second step of fusion of the IMU, the odometer and the estimated pose based on the radar data is completed through a kalman filter, so that the pose of a new laser radar is estimated, and the third step of adopting a constraint scheme of a sub-map further eliminates the environmental error introduced by the odometer and the gyroscope. Preferably, a reflective identification sticker with a special size, or a two-dimensional code, or a monocular camera is added to the back-end algorithm module, so that accumulated errors are further eliminated, and the final positioning accuracy is improved.
Further, in the embodiment of the present invention, a positioning sensor 12 is disposed on the motion platform 1.
The positioning sensor 12 is composed of an axle positioning laser range finder and a wheel positioning laser range finder.
And a differential wheel drive 8 is arranged at the bottom of the motion platform 1.
The outer surface edge of the motion platform 1 is provided with an air bag trigger device 9, the air bag trigger device 9 comprises an air bag body and a pressure sensor, and the pressure sensor is arranged in the air bag body.
Here, the positioning sensor 12 is a composite optical positioning assembly including 2 laser range finders and 1 group of area array imaging assemblies, and when in use, the composite optical positioning assembly can determine the parking deviation of the metro vehicle by searching the axle of the train or confirm the deviation of train components by identifying special components at the bottom of the train car because the deviation of the metro vehicle parking range is about 1m each time.
Further, the robot in the embodiment of the present invention can further include the line scanning assembly 13, the line scanning assembly 13 is used to rapidly complete the component detection of the bottom upward-looking visible portion of the entire vehicle. The line scanning assembly 13 is installed inside the moving platform 1 through a screw, the scanning direction of the line scanning assembly 13 is vertical to the upper direction, the scanning position is at a notch formed on the outer shell of the moving platform 1, and the line scanning assembly 13 may be an LQ-H3XX high-speed series detection device, and may also be other devices having the above-mentioned equipment detection function.
The motion platform 1 can be further provided with an automobile data recorder, the automobile data recorder is a product available on the market, and can effectively record images of the robot in the walking process and provide basis for post analysis.
The differential wheel drive 8 can steer in situ and walk freely, so that the movement of the motion platform 1 is controlled conveniently.
Specifically, the embodiment of the utility model provides an in whole when the in-service use of robot, in order to ensure that the robot can be in the free removal between the different maintenance trench, the robot must accomplish miniaturized design. According to the mechanical parameters of most of the overhauling ditches at home at present. The miniaturization design of the robot needs to satisfy the following conditions
1) The diameter of the robot in situ rotation is less than 1300 mm;
2) the height of the robot is less than 950mm in the lowest posture;
3) the width of the robot needs to be less than 850 mm.
The air bag triggering device 9 comprises an air bag body and a pressure sensor, the air bag body is arranged along the outer circumference of the motion platform 1, and the air bag body is filled with air, so that when the motion platform 1 collides, the air bag body is firstly extruded, then the internal pressure of the air bag body can change, and then the internal pressure is sensed by the pressure sensor, so that an electric signal is sent, the robot (the motion platform 1) is controlled to make an emergency stop action, and severe impact when the motion platform 1 moves is avoided, so that the motion platform 1 is damaged.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims (9)

1. The utility model provides an intelligent robot suitable for subway vehicle train inspection work, its characterized in that, includes motion platform (1), arm (2), panorama shooting camera and binocular camera (4), arm (2) and panorama shooting camera set up on motion platform (1), binocular camera (4) set up on arm (2).
2. An intelligent robot suitable for subway vehicle train inspection work according to claim 1, wherein said moving platform (1) is provided with a transmission device (11).
3. An intelligent robot suitable for metro vehicle train inspection work according to claim 1, wherein a lifting platform (5) is arranged on the moving platform (1), and the mechanical arm (2) is installed on the lifting platform (5).
4. An intelligent robot suitable for subway vehicle train inspection work according to claim 1, wherein said moving platform (1) is provided with a laser radar, said laser radar comprises a front laser radar (61) and a rear laser radar (62), wherein said front laser radar (61) is arranged at one end of said moving platform (1) and said rear laser radar (62) is arranged at the other end of said moving platform (1) along the moving direction of said moving platform (1).
5. The intelligent robot suitable for the train inspection work of the metro vehicles as claimed in claim 1, wherein the moving platform (1) is provided with a SLAM system, and the SLAM system comprises:
the scanning module is used for acquiring distance information between the robot and a peripheral object;
the algorithm module is connected with the scanning module and used for constructing the distance information into map data and positioning the real-time coordinate of the robot in the map;
and the processing module is connected with the scanning module and the algorithm module and is used for calculating a virtual navigation path or calculating a virtual destination parking point.
6. An intelligent robot suitable for subway vehicle train inspection work according to claim 1, wherein said moving platform (1) is provided with a positioning sensor (12).
7. An intelligent robot suitable for metro vehicle train inspection work according to claim 6, wherein the positioning sensor (12) is composed of an axle positioning laser range finder and a wheel positioning laser range finder.
8. An intelligent robot suitable for the train inspection work of metro vehicles according to claim 1, characterized in that the bottom of the moving platform (1) is provided with a differential wheel drive (8).
9. An intelligent robot suitable for subway vehicle train inspection work according to claim 1, wherein an air bag trigger device (9) is arranged at the edge of the outer surface of said moving platform (1), said air bag trigger device (9) comprises an air bag capsule and a pressure sensor, said pressure sensor is arranged in the air bag capsule.
CN201921911108.0U 2019-11-07 2019-11-07 Intelligent robot suitable for subway vehicle train inspection work Active CN210879689U (en)

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CN201921911108.0U CN210879689U (en) 2019-11-07 2019-11-07 Intelligent robot suitable for subway vehicle train inspection work

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Application Number Priority Date Filing Date Title
CN201921911108.0U CN210879689U (en) 2019-11-07 2019-11-07 Intelligent robot suitable for subway vehicle train inspection work

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111855667A (en) * 2020-07-17 2020-10-30 成都盛锴科技有限公司 Novel intelligent train inspection system and detection method suitable for metro vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111855667A (en) * 2020-07-17 2020-10-30 成都盛锴科技有限公司 Novel intelligent train inspection system and detection method suitable for metro vehicle

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Effective date of registration: 20210705

Address after: Building 5, 389 Wenjia Road, Qingyang District, Chengdu, Sichuan 610000

Patentee after: Chengdu Shengkai Technology Co., Ltd

Address before: 6 Donghai Road, Qingyang Park, Jiaolong industrial port, Chengdu, Sichuan 610000

Patentee before: CHENGDU TIEAN SCIENCE & TECHNOLOGY Co.,Ltd.

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