Computer lottery rotary table

Abstract

The invention relates to a computer lottery rotary table which mainly comprises a base, a chassis, a rotary table, a pointer and a keyboard chip. The base is provided with a shaft; the shaft is fixed on the base; the chassis sleeves the shaft and is fixed on the base; a plurality of contacts are arranged on the chassis and are connected with row and line I / O (Input / Output) ports of the keyboard chip; the contacts are distributed on the surface of the chassis to form a shape of a big concentric circle and a small concentric circle which use the shaft as the circle center; the rotary table is provided with two communication contactors. When the rotary table rotates, the communication contactors continuously switch on the contacts on the big circle and the small circle of the chassis, so that the keyboard chip continuously generates corresponding key codes, the key codes are transmitted to a computer by a USB (Universal Serial Bus) interface and the process and a result of the key codes are displayed by a screen. The computer lottery rotary table has the main advantages that the manufacturing cost is low; the computer lottery rotary table can be independently used and also can be communicated with the computer to display the process and the result of the key codes by the screen; corresponding programs can be written according to the key codes generated by rotation of the rotary table.

Description

technical field [0001] The invention belongs to entertainment products, and in particular relates to a lottery turntable which can be connected to a computer. Background technique [0002] The lottery turntable is widely used in some variety shows, merchants' product promotion activities, and other lottery-style activities. In order to allow the audience to see clearly, the lottery turntable is often made very large. Although the huge lottery turntable allows the audience to see clearly, the manufacturing cost is also very high, and it is not convenient to carry. In addition, in the traditional lottery turntable, the surface of the turntable is divided into several areas according to the fan shape, and each area is pasted with corresponding lottery content; if it is replaced with another activity content, another lottery content needs to be made and pasted on the turntable; The operation is troublesome and costs money. [0003] Nowadays, the application of projection, elec...

AI Technical Summary

Problems solved by technology

In order to allow the audience to see clearly, the lottery turntable is often made very large. Although the huge lottery turntable allows the audience to see clearly, the manufacturing cost is also very high, and it is not convenient to carry

In addition, in the traditional lottery turntable, the surface of the turntable is divided into several areas according to the fan shape, and each area is pasted with corresponding lottery content; if it is replaced with another activity content, another lottery content needs to be made and pasted on the turntable; Operation is cumbersome and costly

[0003] Nowadays, the application of projection, electronic screen and other equipment is very common, so it is also possible to simulate the lottery turntable in the form of computer software by writing a program, and display it on the screen so that the audience or parties can see it clearly; It is realized in the form of pure computer software, which lacks the real feeling of turning the turntable by hand, and the internal process of the operation of the computer software is invisible to the audience or the parties concerned. Think cheating or feel unfair

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