Measurement commission management system and method for wharf material unloading

Abstract

The invention discloses a measurement commission management system and method for wharf material unloading. A measurement operation station and a ship unloading operation station are connected with a measurement management server through a network. The measurement management server is used for storing measurement commission information, sent by a commission sending unit, of a ship to be unloaded, ship material unloading control information sent by the ship unloading operation station and ship material weighing data and measurement status information which are sent by the measurement operation station. The ship unloading operation station is provided with a commission management module which is used for dispatching ship unloading wharves, controlling start time and stop time of ship material unloading and sending dispatching information and control information to the measurement management server. The measurement operation station is used for weighing received materials of the ship to be unloaded and sending weighing data and weighing state information to the measurement management server in real time. The measurement commission management system and method for wharf material unloading realize informatization management of wharf material measurement, reduce the number of wharf operators, improve work efficiency and reduce losses of material procurement.

Description

technical field [0001] The invention relates to the measurement management of unloading materials at a wharf, in particular to a system and a management method for entrusting the measurement of unloading materials at a wharf. Background technique [0002] At present, large-scale iron and steel plants, thermal power plants and other enterprises transport bulk raw materials by ship, and the measurement method of ship transportation materials at the wharf mainly adopts the international water gauge weight measurement method. The change calculates the weight of the cargo. Although the weighing of the water gauge is used internationally, there are many factors in the weighing work that cause errors between the measurement data and the actual load, and the weighing work requires a lot of manpower, and the work is cumbersome and has certain dangers. There are the following: factor: [0003] 1. The ship’s cargo warehouse is prone to water ingress during transportation. Due to the ...

AI Technical Summary

Problems solved by technology

Although the weighing of the water gauge is used internationally, there are many factors in the weighing work that cause errors between the measurement data and the actual load, and the weighing work requires a lot of manpower, and the work is cumbersome and has certain dangers. There are the following: factor:

[0003] 1. The ship’s cargo warehouse is prone to water ingress during transportation. Due to the water in the cargo warehouse, the unloading will be affected when the materials are unloaded to the water-soaked part. Due to technological requirements, it is necessary to suspend the unloading. After the water in the cargo warehouse is drained, Continue to unload, this process takes up a lot of time at the terminal and reduces the work efficiency of the terminal

And because the water gauge weight is measured by reading the water gauge before and after loading and unloading of the ship, the measurement result includes the weight of the water in the warehouse, which is greater than the actual weight of the material

[0004] 2. Water gauge measurement of wharf materials cannot be deployed to unload ships according to the production needs of the enterprise, and cannot realize the unloading of wharf ships in turn and the measurement status of storage and unloading

[0005] 3. The error caused by the wrong drawing of the water gauge mark of the ship. The water gauge mark is drawn on the left and right chords of the bow, middle and stern of the hull. If the water gauge mark is not drawn in the correct position, the horizontal line mark of the scale will make the draft The line is inclined, so that the measuring staff will cause reading errors when counting

[0006] 4. Due to the influence of wind waves, laminar turbulent flow of river water, etc., the error generated when observing the ship's water gauge causes the water line to fluctuate up and down near the water gauge, so it is difficult to observe the water gauge, making the read water gauge There is a certain error in the ruler data; and the angle between the observer's line of sight and the horizontal is different, and errors will also occur when reading the water gauge

If the cable is too tight or there is a strong crosswind when mooring, the pulling force of the cable and the thrust of the crosswind will give the ship a downward force, so that the ship is not in a free-floating state when reading the water gauge. There is an error in the data obtained

[0007] 5. During the long-term voyage and the irregular loading of the ship, the hull may be deformed, which will cause errors in the relevant data of the ship, and then affect the accuracy of the water gauge weight.

[0009] 6. When measuring the weight of the draft gauge, there are many measuring personnel, and there are potential safety hazards of falling into the water when getting on and off the ship frequently, and the work efficiency is low; and there are many ships waiting to be unloaded at the wharf, the measurement is easy to be confused, resulting in errors in the measurement results

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