38results about How to "Reduce schedule pressure" patented technology

The invention discloses a method for the two-way hoisting construction of a converter tower steel structure, which comprises the following steps of: firstly, performing construction from a first layer to a fourth layer in a mode of hoisting steel columns by using a tower crane, hoisting a frame beam on the fourth layer by using a truck crane, and after the frame beam on the fourth layer is weldedcompletely, paving a flat pallet immediately, so that an integral converter tower with seven layers is divided into an upper part and a lower part; secondly, for the upper part, performing layer-by-layer construction from bottom to top by adopting a forward hoisting method in a mode of hoisting the steel columns and the frame beam by using the tower crane; and finally, for the lower part, performing the layer-by-layer construction from top to bottom by adopting a backward hoisting method which is synchronous with the forward hoisting method in a mode of hoisting the frame beam by using the truck crane. In the method, starting from a platform of the fourth layer, platforms on the upper part of the converter tower are constructed by utilizing the tower crane, platforms on the lower part of the converter tower are hoisted by utilizing the truck crane to push towards the next layer, and the construction and installation are performed simultaneously by a method of combining forward hoisting and backward hoisting to form a dual working face, so that the efficiency is improved greatly, and the construction period is shortened.

The invention provides a trackless measurement construction method for the inner ring network of a subway tunnel, belonging to the technical field of subway construction, comprising step 1, determining the starting measurement mileage and calculating the coordinates of the starting measurement point, and step 2, calculating the starting measurement point and every preset distance The design rail surface elevation of the corresponding point of N2, step 3, the positioning mark of the design rail surface elevation position of the starting point, step 4, the starting point is the starting point, and the design rail surface elevation measurement mark of the corresponding point every preset distance N2 , step five, the total station measures the slope distance in the shield tunnel, and takes the average value, step six, determines the installation height position of the ring network support, and step seven, checks and checks during the measurement process. Adopting the trackless measurement construction method of the inner ring network of the subway tunnel, the entry time is greatly advanced, and the height measurement construction of the bracket installation can be carried out before the track laying construction, which reduces the pressure of the construction period for the subsequent process, reduces the interference of cross construction, and improves the construction efficiency. .

The invention discloses a single channel and multi-channel switching control method in a numerical control system. The single channel and multi-channel switching control method includes the following steps that: a plurality of pairs of multi-channel identifiers and multi-channel terminators are arranged in the computer numerical control (CNC) part program, the CNC part program between each pair of multi-channel identifiers and multi-channel terminators is subjected to multi-channel control and decoding, and decoded data obtained after decoding are filled into data buffer zones of corresponding channels; buffer data of each channel are sequentially read out and preparing before interpolation is carried out; after the preparatory work of all the channels is completed, the data of each channel are sequentially taken out for interpolation, namely the motion amount of each axis is calculated, and the motion amount is output to an external machine control device; the CNC part program not located between the pairwise multi-channel identifiers and multi-channel terminators is subjected to single channel control; and finally whether decoding of the input CNC part program is completed is judged, the above steps are repeated if decoding is not completed, and control quitting is performed if decoding is completed. The single channel and multi-channel switching control method can achieve random single channel and multi-channel switching control and is wide in use and low in cost.

The embodiment of the invention provides a delivery pressure prediction method and device. The method comprises the steps: obtaining at least one feature parameter of a delivery region, wherein the feature parameters reflect the delivery pressure of the delivery region in a current time period; predicting the delivery pressure parameters of the delivery region in a future time period according to the feature parameters; determining the level of the delivery pressure of the delivery region in the future time period according to the delivery pressure parameters. According to the embodiment of the invention, the method can achieve the prediction of the delivery pressure in advance, facilitates the employing of a coping strategy timely, and facilitates the timely reduction of the pressure of the delivery region and the scheduling pressure of a logistics scheduling system.

A job scheduling method including notifying, by a first control node scheduling a first task, a second control node scheduling a second task to obtain execution data generated by at least one task instance of the first task when the at least one task instance of the first task completes execution; obtaining, by the second control node, the execution data generated by the at least one task instance of the first task and assigning the execution data to each task instance of the second task; and scheduling, by the second control node, an execution of at least one task instance of the second task and processing the execution data. The techniques of the present disclosure improve scheduling efficiency and resource utilization rate.