Crane safety avoidance system

Abstract

The present invention provides a crane safety avoidance system, comprising a Gray bus device arranged on a trolley running channel, a Gray bus data receiver arranged on a trolley of the crane, and a controller connected to the Gray bus data receiver in communication, wherein the controller can control the running state of the trolley of the crane. The present invention uses the Gray bus position to detect the real-time position information of the trolley of the crane in real time, and sends it to the Gray bus data receiver, and the Gray bus data receiver then sends the received real-time position information of the trolley to the controller, and the controller determines the distance between the trolleys of two adjacent cranes according to the real-time position information of the trolley, thereby controlling the running state of the trolley according to the distance, such as controlling the trolley to slow down or stop, etc., to avoid collision between the trolleys of two adjacent cranes, and realize the safe avoidance function, and this avoidance control method can ensure that the safety of the crane operation is higher.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, and in particular to a crane safety avoidance system. Background Art

[0002] Cranes (cranes) are key equipment for production, logistics, and equipment maintenance in steel enterprises, and are widely used in the original docks, steelmaking, ironmaking, hot rolling, cold rolling, finished product warehouses and other departments. At present, the West Asia anti-collision device is used for adjacent vehicle safety collision prevention. It uses the infrared positioning principle and the operation mode is 15 meters deceleration and 5 meters stop. It can no longer meet the working requirements of automated driving and leads to low safety in crane operation. In addition, during the operation of automated driving, it is necessary to consider the safe avoidance of adjacent vehicles in different working conditions. If a single anti-collision avoidance method is adopted, it will not only affect the operating efficiency and fail to meet the production rhythm, but also cause many uncertain safety hazards and personal injury accidents. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a crane safety avoidance system, which can improve the safety of crane operation.

[0004] To achieve the above-mentioned purpose, the present invention provides a crane safety avoidance system, including a Gray bus device arranged on a trolley operation channel, a Gray bus data receiver arranged on the crane trolley, and a controller communicatively connected to the Gray bus data receiver, wherein the controller can control the operation status of the crane trolley.

[0005] Furthermore, the Gray bus data receiver is installed at the end of the vehicle.

[0006] Furthermore, a laser rangefinder is installed on the trolley of the crane, and the laser rangefinder is communicatively connected with the controller.

[0007] Furthermore, the laser rangefinder transmits the detection data to the controller via PROFIBUS-DP.

[0008] Furthermore, the crane safety avoidance system also includes a speed detection sensor, which can detect the moving speed of the crane trolley, and the speed detection sensor is communicatively connected with the controller.

[0009] Furthermore, the controller includes a PLC.

[0010] As described above, the crane safety avoidance system according to the present invention has the following beneficial effects:

[0011] The working principle of the crane safety avoidance system is as follows: the real-time position information of the crane's trolley is detected in real time by using the Gray bus position, and the real-time position information of the trolley is sent to the Gray bus data receiver, and the Gray bus data receiver then sends the received real-time position information of the trolley to the controller. The controller determines the distance between the trolleys of two adjacent cranes according to the real-time position information of the trolley, and thus controls the running state of the trolley according to the distance, such as controlling the trolley to slow down or stop, so as to avoid collision between the trolleys of two adjacent cranes and realize the safety avoidance function. Moreover, this avoidance control method can ensure higher safety of crane operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of a crane safety avoidance system in an embodiment of the present invention.

[0013] Component number description

[0014] 1 Gray bus data receiver

[0015] 2 Controller

[0016] 3 Laser rangefinder

[0017] 4 Speed ​​detection sensor DETAILED DESCRIPTION

[0018] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0019] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0020] The present embodiment provides a crane safety avoidance system, including a Gray busbar device arranged on a trolley running channel, a Gray busbar data receiver arranged on a trolley of the crane, and a controller connected to the Gray busbar data receiver in communication, and the controller can control the running state of the trolley of the crane. The working principle of the crane safety avoidance system is: the real-time position information of the trolley of the crane is detected in real time by using the Gray busbar position, and the real-time position information of the trolley is sent to the Gray busbar data receiver, and the Gray busbar data receiver then sends the received real-time position information of the trolley to the controller, and the controller determines the distance between the trolleys of two adjacent cranes according to the real-time position information of the trolley, thereby controlling the running state of the trolley according to the distance, such as controlling the trolley to slow down or stop, etc., to avoid collision between the trolleys of two adjacent cranes, and realize the safe avoidance function, and this avoidance control method can ensure that the operation of the crane is safer.

[0021] In this embodiment, the Gray bus data receiver is installed at the end of the trolley. In this embodiment, the trolleys of at least two adjacent cranes are equipped with Gray bus data receivers. The trolleys located in the trolley operation channel are all equipped with Gray bus data receivers, and each Gray bus data receiver can send the position information of the corresponding trolley to the controller. The controller is connected to all cranes in communication.

[0022] In this embodiment, a laser rangefinder is also installed on the crane trolley, and the laser rangefinder is connected to the controller in communication, so as to detect the distance between the trolley and the adjacent trolley by using the laser rangefinder, and feed the detection data back to the controller, and the controller controls the operation state of the trolley in turn, so as to avoid collision between two adjacent trolleys, etc. In this embodiment, the laser rangefinder transmits the detection data to the controller via PROFIBUS-DP. In this embodiment, laser rangefinders are installed on multiple trolleys located in the trolley operation channel.

[0023] The crane safety avoidance system in this embodiment further includes a speed detection sensor, which can detect the moving speed of the crane trolley, and the speed detection sensor is connected to the controller for communication. The controller controls the corresponding trolley to operate in a corresponding state according to the speed of the trolley and the above-mentioned spacing.

[0024] The controller includes a PLC. The Gray bus data receiver, laser rangefinder and speed detection sensor are all connected to the PLC in communication. The PLC is also connected to all cranes in communication to control the operating status of all cranes.

[0025] In this embodiment, multiple cranes are arranged in the storage area. By adopting the above-mentioned crane safety avoidance system, the operation status of all cranes can be controlled so that the trolleys of two adjacent cranes can avoid each other in time to avoid collision accidents. The crane safety avoidance system is specifically a storage area vehicle safety avoidance system device, which can be specifically applied to steel enterprises and belongs to the field of metallurgical production technology.

[0026] This crane safety avoidance system enables adjacent cranes to avoid each other safely during automated operation, prevents collisions between adjacent cranes during operation, and improves the safety factor of crane operation. This crane safety avoidance system organically combines Gray busbar device, laser rangefinder and inverter, changing the single passive defense avoidance between cranes in the past, and achieving a more intelligent and efficient safety avoidance method.

[0027] The crane safety avoidance system in this embodiment is mainly applied to frequently used bridge cranes. The crane is newly equipped with a Gray busbar device and a laser rangefinder to prevent collisions between adjacent cranes during operation, improve the safety factor of the crane, and belongs to the field of metallurgy.

[0028] In addition, the crane safety avoidance system in this embodiment also retains the original West Asia anti-collision infrared device as backup protection, and adds the above-mentioned Gray busbar device and laser rangefinder to fully detect the different operating conditions of adjacent cranes. The safety of two cranes running towards each other or relative to each other requires different operating speeds to prevent collisions between adjacent cranes during operation.

[0029] The present embodiment provides a control method using a crane safety avoidance system, comprising the following steps: a Gray bus device detects the real-time position information of the trolleys of two adjacent cranes, and the Gray bus data receivers of the trolleys of the two adjacent cranes respectively send the real-time position information of the two trolleys to the PLC of the controller, and the controller determines the position coordinates of the trolleys of the two adjacent cranes accordingly; at the same time, the controller determines the movement direction and speed of the two trolleys according to the running speed of the two trolleys detected by the speed detection sensor; if the trolleys of the two adjacent cranes run in the same direction and the distance is 22 meters, the controller controls the crane located at the rear to slow down, if the trolleys of the two adjacent cranes run in the same direction and the distance is 16 meters, the controller controls the crane located at the rear to stop; if the trolleys of the two adjacent cranes run towards each other and the distance is 50 meters, the controller controls the two cranes to slow down; if the trolleys of the two adjacent cranes run towards each other and the distance is 20 meters, the controller controls the two cranes to stop. The controller is specifically connected to the crane sub-controllers of all cranes in communication to send a deceleration or stop signal to the corresponding crane sub-controller, and the crane sub-controller specifically controls the operation status of the corresponding crane.

[0030] In this embodiment, the laser rangefinder is also specifically installed at the end of the trolley. The laser rangefinder collects the distance between two adjacent cranes in real time, transmits the real-time data to the PLC through PROFIBUS-DP, and then achieves the safety avoidance function through the PLC, which is specifically realized by using the real-time speed of the crane trolley collected and the distance between the adjacent cranes. And the control method of the crane safety avoidance system adopted in this embodiment includes the following steps: when the speed of the crane trolley is greater than or equal to the first speed, and the distance between the two adjacent cranes measured by the laser rangefinder is less than 40 meters, the controller controls the crane to decelerate; when the speed of the crane trolley is greater than or equal to the second speed and less than the first speed, and the distance between the two adjacent cranes measured by the laser rangefinder is greater than 26 meters and less than 40 meters, the controller controls the crane to decelerate; when the speed of the crane trolley is greater than or equal to the third speed and less than the second speed, and the distance between the two adjacent cranes measured by the laser rangefinder is greater than 9 meters and less than 26 meters, the controller controls the crane to decelerate; when the distance between the two adjacent cranes measured by the laser rangefinder is less than 5.5 meters, the controller controls the crane to stop running. The first speed is greater than the second speed, and the second speed is greater than the third speed; specifically, the first speed is L#14000, the second speed is L#8800, and the third speed is L#4800.

[0031] like Figure 1 As shown, the crane safety avoidance system in this embodiment specifically includes a Gray bus device arranged on the trolley running channel, a Gray bus data receiver 1 arranged on the trolley of the crane, a controller 2 connected to the Gray bus data receiver 1 for communication, a laser rangefinder 3 connected to the controller 2 for communication, and a speed detection sensor 4 connected to the controller 2 for communication.

[0032] The crane safety avoidance system in this embodiment utilizes the organic combination of Gray busbar and laser rangefinder, which can not only maximize the operating efficiency of automated driving, but also improve the driving safety factor and avoid collisions with adjacent vehicles.

[0033] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A crane safety avoidance system, characterized in that: It includes a Gray bus device arranged on a trolley running channel, a Gray bus data receiver arranged on a trolley of a crane, and a controller connected to the Gray bus data receiver in communication, wherein the controller can control the running state of the trolley of the crane; It also includes a speed detection sensor, which can detect the moving speed of the crane trolley, and the speed detection sensor is communicatively connected with the controller; A laser rangefinder is installed on the trolley of the crane, and the laser rangefinder is communicatively connected with the controller; When the speed of the crane's trolley is greater than or equal to the first speed, and the laser rangefinder measures the distance between two adjacent cranes to be less than 40 meters, the controller controls the crane to slow down; when the speed of the crane's trolley is greater than or equal to the second speed and less than the first speed, and the laser rangefinder measures the distance between two adjacent cranes to be greater than 26 meters and less than 40 meters, the controller controls the crane to slow down; when the speed of the crane's trolley is greater than or equal to the third speed and less than the second speed, and the laser rangefinder measures the distance between two adjacent cranes to be greater than 9 meters and less than 26 meters, the controller controls the crane to slow down; when the laser rangefinder measures the distance between two adjacent cranes to be less than 5.5 meters, the controller controls the crane to stop running; the first speed is greater than the second speed, and the second speed is greater than the third speed; The Gray bus data receiver is installed at the end of the vehicle; The laser rangefinder transmits the detection data to the controller via PROFIBUS-DP; The controller includes a PLC.

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