Anti-collision system of stacking crown block and control method of anti-collision system

Abstract

The invention discloses an anti-collision system of a stacking crown block and a control method of the anti-collision system, and relates to the field of stacking crown block anti-collision, the system comprises a cart anti-collision subsystem and a crown block platform operator anti-collision subsystem, the cart anti-collision subsystem comprises a first laser sensor group, a first controller and an alarm device, the crown block platform operator anti-collision subsystem comprises a second laser sensor group and a second controller; the first laser sensor detects whether an obstacle exists on the cart walking track or not, and if yes, a first current signal and distance information are generated; the first controller judges according to the distance information, and controls the alarm device to send an alarm signal or controls the cart to stop running according to a corresponding judgment result and the first current signal; the second laser sensor group detects whether an operator exists on the platform or not; if yes, a second current signal is generated to control the cart and the trolley to stop running. The operation safety of the stacking crown block is improved.

Description

Technical Field

[0001] The present application relates to the technical field of anti-collision of stacking cranes, and in particular to an anti-collision system of a stacking crane and a control method thereof. Background Art

[0002] The existing stacking crane's trolley anti-collision system only has a mechanical anti-collision head and mechanical limit, basically no protection distance, and lacks the automatic alarm function for dangerous behavior. Operators are easily squeezed and collided when working on the track and platform, causing safety accidents. It is unable to provide safety protection for the trolley's walking tracks and maintenance workers, and its safety needs to be improved.

[0003] Therefore, there is an urgent need for an anti-collision system for a stacking crane to solve the above problems. Summary of the invention

[0004] The purpose of the present application is to provide an anti-collision system for a stacking crane and a control method thereof, so as to improve the safety of the stacking crane during operation.

[0005] To achieve the above objectives, this application provides the following solutions:

[0006] In a first aspect, the present application provides an anti-collision system for a stacking crane, the stacking crane comprising: a trolley, a small trolley and a platform, the anti-collision system for the stacking crane comprising: a trolley anti-collision subsystem and an overhead crane platform operator anti-collision subsystem;

[0007] The vehicle anti-collision subsystem comprises: a first laser sensor group, a first controller and an alarm device connected in sequence; the first laser sensor group is located on the vehicle;

[0008] The first laser sensor is used for:

[0009] Detecting whether there is an obstacle on the traveling track of the trolley within a first preset distance of the trolley;

[0010] When an obstacle exists, a first current signal and distance information are generated; the distance information is the distance between the vehicle and the obstacle;

[0011] The first controller is used for:

[0012] When the first current signal is received, determining whether the distance information is greater than a second preset distance, and obtaining a first determination result;

[0013] If the first judgment result is yes, controlling the alarm device to send out an alarm signal;

[0014] If the first judgment result is no, then judging whether the distance information is less than a third preset distance, and obtaining a second judgment result; the third preset distance is less than the second preset distance;

[0015] If the second judgment result is yes, the vehicle is controlled to stop running;

[0016] The overhead crane platform operator anti-collision subsystem includes: a second laser sensor group and a second controller; the second laser sensor group is connected to the second controller; the second laser sensor group is located at the entrance of the platform ladder of the stacking crane;

[0017] The second laser sensor group is used to detect whether there is an operator on the platform;

[0018] If there is an operator, a second current signal is generated;

[0019] The second controller is used to control the trolley and the car to stop running according to the second current signal to avoid collision between the trolley and the car and the operator.

[0020] Optionally, the large vehicle anti-collision subsystem further includes: a first signal transmission device; the first laser sensor group and the first controller are connected via the first signal transmission device;

[0021] The first signal transmission device is used to transmit the first current signal and the distance information to the first controller.

[0022] Optionally, the overhead crane platform operator anti-collision subsystem further includes: a second signal transmission device; the second laser sensor group and the second controller are connected via the second signal transmission device;

[0023] The second signal transmission device is used to transmit the second current signal to the second controller.

[0024] Optionally, the first laser sensor group includes 8 laser sensors, and two laser sensors are respectively arranged on the four corners of the vehicle.

[0025] Optionally, the first signal transmission device is a cable.

[0026] Optionally, the second signal transmission device is a cable.

[0027] Optionally, the alarm device is an audible and visual alarm device.

[0028] Optionally, the first preset distance is 15 meters.

[0029] Optionally, the second preset distance is 5 meters, and the third preset distance is 3 meters.

[0030] In a second aspect, the present application provides a method for controlling an anti-collision system of a stacking crane. The method for controlling an anti-collision system of the stacking crane is based on the anti-collision system of the stacking crane, and the method for controlling an anti-collision system of the stacking crane comprises:

[0031] Detecting whether there is an obstacle on the traveling track of the trolley within a first preset distance of the trolley;

[0032] When an obstacle exists, a first current signal and distance information are generated; the distance information is the distance between the vehicle and the obstacle;

[0033] When the first current signal is generated, determining whether the distance information is greater than a second preset distance to obtain a first determination result;

[0034] If the first judgment result is yes, controlling the alarm device to send out an alarm signal;

[0035] If the first judgment result is no, then judging whether the distance information is less than a third preset distance, and obtaining a second judgment result; the third preset distance is less than the second preset distance;

[0036] If the second judgment result is yes, the vehicle is controlled to stop running;

[0037] Detecting whether there is an operator on the platform;

[0038] If there is an operator, a second current signal is generated;

[0039] According to the second current signal, the trolley and the car are controlled to stop running to avoid collision between the trolley and the car and the operator.

[0040] According to the specific embodiments provided in this application, this application has the following technical effects:

[0041] The present application discloses an anti-collision system for a stacking crane and a control method thereof, the system comprising a large vehicle anti-collision subsystem and an overhead crane platform operator anti-collision subsystem, the large vehicle anti-collision subsystem comprising a first laser sensor group, a first controller and an alarm device; the overhead crane platform operator anti-collision subsystem comprising a second laser sensor group and a second controller; the large vehicle anti-collision subsystem is used to perform non-destructive detection on obstacles on the large vehicle travel track within a first preset distance of the large vehicle, and the driver is reminded to slow down or the large vehicle travel device is directly controlled to slow down and brake according to the detection results, thereby achieving the safety of the large vehicle during operation; the overhead crane platform operator anti-collision subsystem is used to perform non-destructive detection on whether there are operators on the platform, and when operators are detected, the large vehicle and the trolley are controlled to stop running, thereby avoiding collisions between the large vehicle and the trolley and the operators, thereby improving the safety of the overhead crane platform operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A schematic diagram of functional modules of an anti-collision system for a stacking crane and a control system thereof provided in one embodiment of the present application;

[0044] Figure 2 A schematic flow chart of a control method for a collision avoidance system of a stacking crane provided in one embodiment of the present application.

[0045] Reference numerals:

[0046] The vehicle anti-collision subsystem 1, the first laser sensor group 11, the first controller 12, the alarm device 13, and the first signal transmission device 14; the overhead crane platform operator anti-collision subsystem 2, the second laser sensor group 21, the second controller 22, and the second signal transmission device 23. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0049] In an exemplary embodiment, Figure 1 As shown, an anti-collision system for a stacking crane is provided. The stacking crane comprises: a trolley, a small trolley and a platform. The anti-collision system for the stacking crane comprises: a trolley anti-collision subsystem 1 and an overhead crane platform operator anti-collision subsystem 2.

[0050] The vehicle anti-collision subsystem 1 comprises: a first laser sensor group 11, a first controller 12 and an alarm device 13 connected in sequence; the first laser sensor group 11 is located on the vehicle. The first laser sensor group 11 comprises a plurality of first laser sensors, and the first laser sensors are safety gratings.

[0051] The first laser sensor is used to detect whether there is an obstacle on the walking track of the trolley within a first preset distance of the trolley. When an obstacle exists, a first current signal and distance information are generated; the distance information is the distance between the trolley and the obstacle.

[0052] The first controller 12 is used to determine whether the distance information is greater than the second preset distance when receiving the first current signal, and obtain a first judgment result; if the first judgment result is yes, control the alarm device 13 to send an alarm signal; if the first judgment result is no, determine whether the distance information is less than the third preset distance, and obtain a second judgment result; the third preset distance is less than the second preset distance; if the second judgment result is yes, control the trolley to stop running, that is, use the second control signal to control the trolley walking device to start decelerating until it stops.

[0053] The overhead crane platform operator anti-collision subsystem 2 includes: a second laser sensor group 21 and a second controller 22; the second laser sensor group 21 is connected to the second controller 22; the second laser sensor group 21 is located at the entrance of the platform ladder of the stacking crane, and the second laser sensor group 21 is specifically installed on the guardrail at the entrance of the platform ladder of the stacking crane, and the second laser sensor group 21 includes a pair of second laser sensors.

[0054] The second laser sensor group 21 is used to detect whether there is an operator on the platform, and if there is an operator, a second current signal is generated.

[0055] The second controller 22 is used to control the trolley and the car to stop running according to the second current signal (i.e., control the original interlocking of the trolley and the car's travel control to stop the trolley and the car's running) to avoid collision between the trolley and the car and the operator.

[0056] As an optional implementation, the large vehicle anti-collision subsystem 1 further includes: a first signal transmission device 14 ; the first laser sensor group 11 and the first controller 12 are connected via the first signal transmission device 14 .

[0057] The first signal transmission device 14 is used to transmit the first current signal and the distance information to the first controller 12 .

[0058] As an optional implementation, the overhead travelling platform operator anti-collision subsystem 2 further includes: a second signal transmission device 23 ; the second laser sensor group 21 and the second controller 22 are connected via the second signal transmission device 23 .

[0059] The second signal transmission device 23 is used to transmit the second current signal to the second controller 22 .

[0060] As an optional implementation, the first laser sensor group 11 includes 8 laser sensors, with two laser sensors being respectively arranged at the four corners of the vehicle.

[0061] As an optional implementation, the first signal transmission device 14 is a cable.

[0062] As an optional implementation, the second signal transmission device 23 is a cable.

[0063] As an optional implementation, the alarm device 13 is an audible and visual alarm device. The audible and visual alarm device is located in the driver's cab and is used to remind the driver that there is an obstacle on the vehicle's travel track within a first preset distance of the vehicle.

[0064] As an optional implementation, the first preset distance is 15 meters.

[0065] As an optional implementation, the second preset distance is 5 meters, and the third preset distance is 3 meters. Furthermore, if an obstacle is detected within 1 meter of the overhead travelling crane, the overhead travelling crane is stopped immediately to prevent an injury accident.

[0066] Beneficial effects of this application:

[0067] The present application enables the stacking crane to automatically alarm and remind dangerous behaviors, and implement early deceleration and braking of the equipment in any scenario such as operation and maintenance, thereby improving the safety level of the stacking crane, preventing personal injury accidents caused by factors such as misoperation, erroneous action, and operator's accidental entry, and improving the overall safety of the stacking crane during use.

[0068] The embodiment of the present application also provides a control method for a stacking crane anti-collision system based on the above-mentioned stacking crane anti-collision system. The implementation scheme for solving the problem provided by the control method is similar to the implementation scheme recorded in the above-mentioned system, so the specific limitations in the control method embodiments of one or more stacking crane anti-collision systems provided below can refer to the limitations of the stacking crane anti-collision system above, and will not be repeated here.

[0069] In an exemplary embodiment, Figure 2 As shown, a control method for an anti-collision system of a stacking crane is provided, comprising:

[0070] Step S1, detecting whether there is an obstacle on the traveling track of the trolley within a first preset distance of the trolley.

[0071] Step S2, when there is an obstacle, generate a first current signal and distance information; the distance information is the distance between the vehicle and the obstacle.

[0072] Step S3, when the first current signal is generated, determining whether the distance information is greater than a second preset distance, and obtaining a first determination result.

[0073] Step S4: If the first judgment result is yes, the alarm device 13 is controlled to send out an alarm signal.

[0074] Step S5: If the first judgment result is no, determine whether the distance information is less than a third preset distance to obtain a second judgment result; the third preset distance is less than the second preset distance.

[0075] Step S6: If the second judgment result is yes, the vehicle is controlled to stop running.

[0076] Step S7, detecting whether there is an operator on the platform.

[0077] Step S8: If there is an operator, a second current signal is generated.

[0078] Step S9, according to the second current signal, controlling the trolley and the car to stop running to avoid collision between the trolley and the car and the operator.

[0079] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A collision avoidance system for a stacking crane, the stacking crane comprising: The trolley, the dolly and the platform are characterized in that the anti-collision system of the stacking crane comprises: a trolley anti-collision subsystem and an overhead crane platform operator anti-collision subsystem; The vehicle anti-collision subsystem comprises: a first laser sensor group, a first controller and an alarm device connected in sequence; the first laser sensor group is located on the vehicle; The first laser sensor is used for: Detecting whether there is an obstacle on the traveling track of the trolley within a first preset distance of the trolley; When an obstacle exists, a first current signal and distance information are generated; the distance information is the distance between the vehicle and the obstacle; The first controller is used for: When the first current signal is received, determining whether the distance information is greater than a second preset distance, and obtaining a first determination result; If the first judgment result is yes, controlling the alarm device to send out an alarm signal; If the first judgment result is no, then judging whether the distance information is less than a third preset distance, and obtaining a second judgment result; the third preset distance is less than the second preset distance; If the second judgment result is yes, the vehicle is controlled to stop running; The overhead crane platform operator anti-collision subsystem includes: a second laser sensor group and a second controller; the second laser sensor group is connected to the second controller; the second laser sensor group is located at the entrance of the platform ladder of the stacking crane; The second laser sensor group is used to detect whether there is an operator on the platform; If there is an operator, a second current signal is generated; The second controller is used to control the trolley and the carriage to stop running according to the second current signal.

2. The anti-collision system for a stacking crane according to claim 1, characterized in that: The vehicle anti-collision subsystem further includes: a first signal transmission device; the first laser sensor group and the first controller are connected via the first signal transmission device; The first signal transmission device is used to transmit the first current signal and the distance information to the first controller.

3. The anti-collision system for a stacking crane according to claim 1, characterized in that: The overhead crane platform operator anti-collision subsystem further includes: a second signal transmission device; the second laser sensor group and the second controller are connected via the second signal transmission device; The second signal transmission device is used to transmit the second current signal to the second controller.

4. The anti-collision system for a stacking crane according to claim 1, characterized in that: The first laser sensor group includes eight laser sensors, and two laser sensors are respectively arranged on the four corners on the front side of the vehicle.

5. The anti-collision system for a stacking crane according to claim 2, characterized in that: The first signal transmission device is a cable.

6. The anti-collision system for a stacking crane according to claim 3, characterized in that: The second signal transmission device is a cable.

7. The anti-collision system for a stacking crane according to claim 1, characterized in that: The alarm device is an audible and visual alarm device.

8. The anti-collision system for a stacking crane according to claim 1, characterized in that: The first preset distance is 15 meters.

9. The anti-collision system for a stacking crane according to claim 1, characterized in that: The second preset distance is 5 meters, and the third preset distance is 3 meters.

10. A method for controlling an anti-collision system of a stacking crane, characterized in that: The control method of the anti-collision system of the stacking crane is based on the anti-collision system of the stacking crane according to any one of claims 1 to 9, and the control method of the anti-collision system of the stacking crane comprises: Detecting whether there is an obstacle on the traveling track of the trolley within a first preset distance of the trolley; When an obstacle exists, a first current signal and distance information are generated; the distance information is the distance between the vehicle and the obstacle; When the first current signal is generated, determining whether the distance information is greater than a second preset distance to obtain a first determination result; If the first judgment result is yes, controlling the alarm device to send out an alarm signal; If the first judgment result is no, then judging whether the distance information is less than a third preset distance, and obtaining a second judgment result; the third preset distance is less than the second preset distance; If the second judgment result is yes, the vehicle is controlled to stop running; Detecting whether there is an operator on the platform; If there is an operator, a second current signal is generated; According to the second current signal, the trolley and the car are controlled to stop running to avoid collision between the trolley and the car and the operator.

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