55results about How to "Avoid serious deviation" patented technology

An optical scanning characteristic control method is applied to an optical scanning system in which a beam is deflected, and the deflected beam is converged and directed toward a scanning surface, so that optical scanning of the scanning surface is performed by an optical spot formed thereon by the deflected beam. The method comprising the steps of a) disposing a beam deflection control device on the light path of the beam before it is incident on the scanning surface; and b) controlling a beam deflection amount of the beam deflecting device provide to an incident beam so as to control a scanning characteristic of the optical scanning.

There is described a process of measuring print-to-print register of a multicolour print (A-D) provided in an effective printed area (EPA) of the surface of printed material, which multicolour print (A-D) is formed on the printed material by means of one or more printing presses and includes at least a first pattern (A) and a second pattern (B) distinguishable from the first pattern (A), the effective printed area (EPA) being provided with a matrix arrangement of individual imprints (P) which are each provided with the multicolour print (A-D) and are repeated over the surface of the effective printed area (EPA) along a pattern of rows and columns. Measurement of an actual print-to-print register between the first and second patterns (A, B), as reflected on the printed material, is derived from processing and finding a correspondence between (i) at least one sample image (SIA, SIB) of the printed material covering at least a portion of the first and second patterns (A, B), and (ii) at least one corresponding reference image (RIA, RIB) generated using prepress design data of the first and second patterns (A, B). Furthermore, the process is repeated for multiple ones of the individual imprints (P) so as to derive a set of multiple measurements of the actual print-to-print register between the first and second patterns (A, B) at various imprint locations over the effective printed area (EPA), which set of multiple measurements is mapped into a corresponding print-to-print register map (MB-A, MC-A, MD-A, . . . ) that is representative of print-to-print register deviations at the various imprint locations. Also described is a measuring device for carrying out this process and a process of measuring and correcting print-to-print register of a multicolour print.

The invention relates to a transportable packaging unit (10), having a packaging content (11), a covering (12) surrounding the packaging content (11) and connecting means (15a-d) connecting the packaging content (11) and the covering (12). The covering (12) has an outer shape which can roll. A packaging unit which is particularly simple and flexible to use is achieved such that the connecting means (15a-d) fix the content of the packaging (11) in the covering (12).

The present application provides a parking control method and device for an automatic driving truck, and the automatic driving truck, which relate to the technical field of automatic driving. The method includes: obtaining a parking task instruction; the parking task instruction includes a location to be parked; determining the global planning path of the self-driving truck according to the location to be parked; segmenting the global planning path to obtain multiple segments Plan the path; control the self-driving truck to drive according to each segment planning path in turn, and monitor the deviation data of the self-driving truck at the end of each segment planning path; re-plan the self-driving truck’s route according to the deviation data of the self-driving truck Globally plan the path until the self-driving truck is controlled to the location to be parked. The embodiment of the present application can consider the driving situation of the self-driving truck in real time, avoid the self-driving truck from seriously deviating from the originally planned route, and ensure the parking accuracy of the self-driving truck.

The invention discloses a deviation rectification control method and system for a car of a bridge crane in the walking process. The method comprises the steps of detecting real-time displacement signals on the two sides of the car in real time in the walking process of the car; comparing the real-time displacement signals on the two sides of the car for obtaining a displacement difference value; adopting the displacement difference value as a control signal and controlling the walking speed and the displacement of the two sides of the car for adjusting the deviation of the two sides. The system comprises a detection module used for detecting the real-time displacement signals on the two sides of the car in real time in the walking process of the car, a comparison module used for comparing the real-time displacement signals on the two sides of the car for obtaining the displacement difference value, and a deviation rectification controller used for adopting the displacement difference value as the control signal and controlling the walking speed and the displacement of the two sides of the car for adjusting the deviation of the two sides. According to the deviation rectification control method and system, the deviation problem in the walking process of the car of the bridge crane can be effectively solved, the stability in the operation process of the bridge crane can be improved, the maintenance cost can be lowered, and the production efficiency can be improved.

The invention discloses a control method for preventing strip breakage in the annealing furnace of a cold rolling processing line. A backup protection function is added to the original correction system. Ramp speed limit, early warning prompt system, tension compensation system control, when the strip steel deviates from the production center line by 50mm, the starting ramp speed limit is 60m / min, even if the shape of the incoming material is poor, the degree of deviation of the strip steel can be significantly reduced. It effectively avoids the serious deviation of the strip in the furnace, and at the same time greatly reduces the accident of strip breakage in the annealing furnace, so that the continuous and reliable operation of the cold rolling processing line is guaranteed.