Landing leg anti-collision control system and control method

Abstract

The invention discloses a landing leg anti-collision control system and a landing leg anti-collision control method in the engineering machinery technology. The system comprises a detection device, a control unit and a landing leg control element, the detection device is used for detecting collision object information in a set detection area around the supporting legs and transmitting a detection signal to the control unit; the control unit is used for receiving a detection signal of the detection device, judging the collision risk, sending a control instruction to the supporting leg electromagnetic valve and sending an alarm signal. And the landing leg control element controls stopping or continuing of landing leg actions according to the received control instruction. Through linkage control of the landing leg anti-collision detection device, the control unit and the landing leg control element, collision risks can be actively recognized and avoided, landing leg anti-collision control is achieved, safety guarantee is provided for the one-key vehicle supporting function, convenience and safety of landing leg operation are improved, intelligent control is achieved, and operation safety and operation efficiency are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of engineering machinery, and more specifically, relates to an outrigger anti-collision control system and a control method. Background Art

[0002] Before a wheeled crane performs a lifting operation, it is first necessary to extend the horizontal outriggers, and then support the crane on the ground with the vertical outriggers to ensure the safety of the lifting process. Generally, a wheeled crane has four horizontal outriggers, located on the left and right sides of the vehicle, with two on each side. During normal operation, since it is impossible to observe the surrounding conditions of all outriggers at the same time, in order to avoid the risk of collision during the extension of the horizontal outriggers, the operator first controls the outrigger on the same side of the vehicle to extend, and then controls the outrigger on the other side of the vehicle to extend. The operation process is not convenient and fast enough. With the improvement of the intelligence and humanization of cranes, some products have now realized the one-button support function, that is, after pressing the one-button support function button, the vehicle automatically completes the extension and retraction of the horizontal and vertical outriggers. However, during the support process, the operator mainly identifies the possible collision risks around the outriggers, and the vehicle cannot automatically identify and avoid them, which poses a safety hazard.

[0003] Regarding the technology of the outrigger anti-collision device disclosed in the prior art, one solution is to add a mechanical protective device, which is a kind of protection after the outrigger collision and can reduce the damage to the outrigger, but this solution cannot avoid the risk in advance; another solution is to avoid the occurrence of collision accidents by adding alarm reminders, but this solution cannot actively identify the collision risk and avoid it autonomously, and there are still safety hazards. Summary of the invention

[0004] The purpose of the present invention is to address the above shortcomings and provide a leg anti-collision control system and control method, which can detect the environmental conditions around the leg and design relevant control strategies. When encountering the risk of collision, the leg movement can be stopped in time, thereby realizing leg anti-collision control and improving operation safety.

[0005] To achieve the above object, the present invention is implemented by the following technical solutions:

[0006] In a first aspect, the present invention provides an outrigger anti-collision control system, comprising a detection device, a control unit and an outrigger control element;

[0007] The detection device is used to detect information about collision objects in a detection area set around the outrigger and transmit a detection signal to the control unit;

[0008] The control unit is used to receive the detection signal of the detection device, determine the collision risk, send a control instruction to the outrigger solenoid valve, and send an alarm signal;

[0009] The outrigger control element controls to stop or continue the outrigger movement according to the received control instruction.

[0010] Furthermore, the detection device includes a radar, an infrared sensor or an image acquisition device.

[0011] Furthermore, the detection device may be arranged at the front end of the outrigger; or arranged at a position on the vehicle body that can monitor the extension and retraction range of the outrigger; or the detection device may be arranged at both the front end of the outrigger and the vehicle body.

[0012] Furthermore, the control system also includes an alarm terminal connected to the control unit, which is used to receive an alarm signal sent by the control unit and issue an alarm prompt.

[0013] Furthermore, the alarm terminal is a warning light, a voice alarm or a display screen, so that the operator can eliminate the collision risk in time.

[0014] Furthermore, the outrigger control element is an outrigger solenoid valve.

[0015] In a second aspect, the present invention provides an outrigger anti-collision control method, based on the outrigger anti-collision control system of the first aspect, comprising:

[0016] In response to detecting the presence of a collision object in the set detection area, determining that there is a collision risk, controlling the outrigger control element to stop the outrigger movement, and sending an alarm signal;

[0017] In response to detecting that there is no collision object in the set detection area, it is determined that there is no collision risk or the collision risk is eliminated, and the outrigger control element is controlled to continue the outrigger action.

[0018] Furthermore, when the detection device is a radar or an infrared sensor, the detection device directly sends a detection signal of whether there is a collision object to the control unit, and the control unit directly determines whether there is a collision risk based on the detection signal.

[0019] Furthermore, when the detection device is an image acquisition device, the detection device sends the acquired picture information to the control unit, and the control unit performs image processing on the acquired picture to identify the collision risk.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention can actively identify collision risks and avoid them through the linkage control of the outrigger anti-collision detection device, the control unit and the outrigger control element, thereby realizing outrigger anti-collision control, providing safety guarantee for the one-key outrigger function, improving the convenience and safety of outrigger operation, realizing intelligent control, and improving operation safety and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1A system composition block diagram of an outrigger anti-collision control system provided by an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the arrangement of the detection device described in Example 1;

[0024] Figure 3 This is a schematic diagram of the arrangement of the detection device described in Example 2;

[0025] Figure 4 A control flow chart of a leg anti-collision control method provided in Example 3.

[0026] In the figure: 1. detection device; 2. horizontal support leg; 3. vehicle body. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention will be described in more detail below in conjunction with the accompanying drawings and specific examples.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] Example 1

[0031] like Figure 1As shown, this embodiment provides an outrigger anti-collision control system, including a detection device 1, a control unit and an outrigger solenoid valve. The detection device 1 is used to detect collision object information in a detection area set around the outrigger, and transmit the detection signal to the control unit; the control unit is used to receive the detection signal of the detection device 1, determine the collision risk, send a control instruction to the outrigger solenoid valve, and send an alarm signal to the alarm terminal; the outrigger solenoid valve starts and stops the outrigger according to the received control instruction.

[0032] In this embodiment, the detection device 1 is an infrared sensor, which is arranged at the front end of the horizontal leg 2. Its arrangement and detection area are as follows: Figure 2 shown.

[0033] In this embodiment, the alarm terminal is a warning light. When the operator sees the warning light is on, he / she will promptly clear the collision object, eliminate the collision risk, and continue the outrigger operation.

[0034] Example 2

[0035] like Figure 1 As shown, this embodiment provides an outrigger anti-collision control system, comprising a detection device 1, a control unit and an outrigger solenoid valve. The detection device 1 is used to detect collision object information in a detection area set around the outrigger, and transmit the detection signal to the control unit; the control unit is used to receive the detection signal of the detection device 1, determine the collision risk, send a control instruction to the outrigger solenoid valve, and send an alarm signal to the alarm terminal; the outrigger solenoid valve controls to stop or continue the outrigger action according to the received control instruction.

[0036] In this embodiment, the detection device 1 is a camera, which is arranged at a position on the vehicle body 3 where the extension and retraction range of the legs can be monitored. Figure 3 In some other embodiments, the detection device 1 may be arranged on the front end of the horizontal leg 2 and the vehicle body 3 to expand the detection area, further reduce the collision risk, and improve the operation safety.

[0037] In this embodiment, the alarm terminal is a voice alarm. When the operator hears the voice alarm, he or she promptly clears the collision object, eliminates the collision risk, and continues the outrigger operation.

[0038] Example 3

[0039] This embodiment provides an outrigger anti-collision control method, based on the outrigger anti-collision control system described in Embodiment 1 or Embodiment 2, including:

[0040] When the outrigger starts to operate, the detection device 1 detects the collision object information in the set detection area and sends it to the control unit;

[0041] When it is detected that there is no collision object in the set detection area, the control unit determines that there is no collision risk, and the outrigger solenoid valve controls the outrigger to continue the action;

[0042] When a collision object is detected in the set detection area, the control unit determines that there is a collision risk, the outrigger solenoid valve controls the outrigger to stop the action, and sends an alarm signal to the alarm terminal; the operator receives the alarm from the alarm terminal and promptly clears the collision object to eliminate the collision risk;

[0043] When it is detected that the collision object in the set detection area is cleared and the collision risk is eliminated, the outrigger solenoid valve controls the outrigger to continue the action.

[0044] In a specific embodiment, when the detection device 1 is a radar or an infrared sensor, the detection device 1 directly sends a detection signal of whether there is a collision object to the control unit, and the control unit directly determines whether there is a collision risk based on the detection signal; when the detection device 1 is a camera, the detection device 1 sends the collected picture information to the control unit, and the control unit performs image processing on the collected picture to identify the collision risk.

[0045] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Without departing from the scope and technical principles of the described embodiments, many modifications and changes are obvious to those of ordinary skill in the art, and these modifications and changes should also be regarded as the scope of protection of the present invention.

Claims

1. A leg anti-collision control system, characterized in that: It includes a detection device, a control unit and an outrigger control element; The detection device is used to detect information about collision objects in a detection area set around the outrigger and transmit a detection signal to the control unit; The control unit is used to receive the detection signal of the detection device, determine the collision risk, send a control instruction to the outrigger solenoid valve, and send an alarm signal; The outrigger control element controls to stop or continue the outrigger movement according to the received control instruction.

2. The outrigger anti-collision control system according to claim 1, characterized in that: The detection device includes a radar, an infrared sensor or an image acquisition device.

3. The outrigger anti-collision control system according to claim 1, characterized in that: The detection device is arranged at the front end of the supporting leg.

4. The outrigger anti-collision control system according to claim 1, characterized in that: The detection device is arranged at a position on the vehicle body where it can monitor the extension and retraction range of the outriggers.

5. The outrigger anti-collision control system according to claim 1, characterized in that: The control system also includes an alarm terminal connected to the control unit, which is used to receive an alarm signal sent by the control unit and send out an alarm prompt.

6. The outrigger anti-collision control system according to claim 5, characterized in that: The alarm terminal is a warning light, a voice alarm or a display screen.

7. The outrigger anti-collision control system according to claim 1, characterized in that: The outrigger control element is an outrigger solenoid valve.

8. A method for controlling an outrigger collision avoidance, based on the outrigger collision avoidance control system according to any one of claims 1 to 7, characterized in that: include: In response to detecting the presence of a collision object in the set detection area, determining that there is a collision risk, controlling the outrigger control element to stop the outrigger movement, and sending an alarm signal; In response to detecting that there is no collision object in the set detection area, it is determined that there is no collision risk or the collision risk is eliminated, and the outrigger control element is controlled to continue the outrigger action.

9. The outrigger anti-collision control method according to claim 8, characterized in that: When the detection device is a radar or an infrared sensor, the detection device directly sends a detection signal of whether there is a collision object to the control unit, and the control unit directly determines whether there is a collision risk based on the detection signal.

10. The outrigger anti-collision control method according to claim 8, characterized in that: When the detection device is an image acquisition device, the detection device sends the acquired picture information to the control unit, and the control unit performs image processing on the acquired picture to identify the collision risk.

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