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Early warning method, system and crane including the system

A technology of early warning system and angular displacement, which is applied in the direction of steering mechanism, transportation and packaging, vehicle parts, etc., and can solve problems such as vehicle accidents

Active Publication Date: 2021-02-19
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if there is a sudden change in the target angular displacement during the steering process, the actual angular displacement will also change suddenly with the target angular displacement. At this time, there will be no error between the target angular displacement and the actual angular displacement, so no early warning will be given. However, this A sudden change in the angular displacement of the target is likely to cause a vehicle accident

Method used

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  • Early warning method, system and crane including the system
  • Early warning method, system and crane including the system
  • Early warning method, system and crane including the system

Examples

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Embodiment 1

[0045] figure 1 It is a flow chart of a kind of early warning method of embodiment 1. figure 1' It is a structural diagram of the positions of the first bridge, the third bridge, the fourth bridge, the fifth bridge, and the sixth bridge of the vehicle of embodiment 1 and the corresponding sensor installation positions.

[0046] Such as figure 1 As shown, the early warning methods include:

[0047] S101. Obtain a target angular displacement change rate in a normal driving state of the vehicle.

[0048] Wherein, the change rate of the target angular displacement is the slope of the change of the normal angular displacement of the vehicle. In theory, when the vehicle is running normally, the rate of change of the target angular displacement should be a constant value, and all angular displacement changes should satisfy the change slope. It is numerically visible that any angular displacement should be It is on the straight line where the slope of the angular displacement cha...

Embodiment 2

[0087] Figure 4 It is a specific flow chart of another embodiment of embodiment 2.

[0088] Such as Figure 4 As shown, the present embodiment provides a kind of early warning method, and this early warning method comprises:

[0089] S401, when the vehicle is running normally, collect an angular displacement Y and an angular value θ every set time Q;

[0090] S402, calculating the angular displacement change rate K X =(Y X -Y X-1 ) / Q and angular velocity E=θ / Q, where x is the number of acquisitions, and K is the rate of change of angular displacement;

[0091] S403, judging whether the change amount of the actual angular displacement change rate is greater than the preset intermediate value N, wherein the change amount of the actual angular displacement change rate is |K X -K X-1 |, where K X is the actual angular displacement change rate at the current sampling moment, K X-1 The angular displacement rate of change at the previous sampling moment; if the actual angul...

Embodiment 3

[0100] Figure 5 It is a module connection diagram of a kind of early warning system of embodiment 3.

[0101] Such as Figure 5 As shown, the early warning system includes: a target rate of change acquisition device 1, which is used to obtain the target angular displacement rate of change under the normal driving state of the vehicle; an actual information acquisition device 2, which is used to obtain the actual angular displacement rate of change of the vehicle at the current sampling moment and The actual angular displacement change rate relative to the angular displacement change rate of the previous sampling moment, and the actual angular velocity change amount of the actual angular velocity at the current sampling moment relative to the angular velocity at the previous sampling moment; control early warning The device 3 is configured to use the interval between the actual change rate of angular displacement and the set change rate of angular displacement, the threshold ...

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Abstract

The invention relates to the field of engineering machinery, and discloses an early warning method, a system and a crane including the system. The early warning method includes: obtaining the target angular displacement change rate under the normal driving state of the vehicle; obtaining the actual angular displacement change rate and the actual angular displacement change rate of the vehicle at the current sampling moment The actual angular displacement change rate relative to the angular displacement change rate of the previous sampling moment is the actual angular displacement change rate change amount, and the actual angular velocity change amount of the actual angular velocity at the current sampling moment relative to the angular velocity at the previous sampling moment is obtained; and according to The actual angular displacement change rate and the set angular displacement change rate change interval, the actual angular velocity change and the set angular velocity change threshold, and the actual angular displacement change rate and the target angular displacement change rate respectively A result of the comparison, and the control executes an alert associated with the result of the comparison. The early warning method can realize relevant early warning when the angular displacement of the target changes suddenly.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to an early warning method, system and a crane including the system. Background technique [0002] In the construction machinery industry, the angular displacement sensor is used to sense the displacement of the vehicle. At present, only when there is an error between the target angular displacement and the actual angular displacement, an early warning will be issued. However, if there is a sudden change in the target angular displacement during the steering process, the actual angular displacement will also change suddenly with the target angular displacement. At this time, there will be no error between the target angular displacement and the actual angular displacement, so no early warning will be given. However, this A sudden change in the angular displacement of the target is likely to cause vehicle accidents. Therefore, it is necessary to design an early warning method. ...

Claims

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Application Information

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IPC IPC(8): B62D15/02
CPCB62D15/02
Inventor 沈苏方杰平刘永赞
Owner ZOOMLION HEAVY IND CO LTD
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