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Control circuit of coin-operated computer

A technology of computer control and circuit, which is applied in coin-operated equipment with instrument control, coin-operated equipment for distributing discrete items, handling coins or valuable banknotes, etc., and can solve problems such as computer circuit diagrams without coin-operated Internet access

Inactive Publication Date: 2016-08-24
李渤海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, it is known that there are coin-operated vending machines in public places, but there is no computer circuit diagram for coin-operated Internet access

Method used

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  • Control circuit of coin-operated computer

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Embodiment Construction

[0009] exist figure 1 Among them, the coin input signal enters from the input port (9), triggers the monostable state (10) after being buffered by the transistor (1) (2), and its output terminal all the way to the transistor (3) to start the relay (19), 3, 4 contacts Make relay self-protection, 1, 2 contact points are connected computer display screen; The other road is given counter (14) positive number end, digital (16) shows and adds 1, also gives NAND gate (17) all the way to make square wave generator (11 ) signal enters counter (13) counter-counting end digital display countdown, to counter (14) counter-numbering end digital display (16) minus 1 after 0, when digital (15) (16) all decrements to zero, NAND gate (18 ) to a cut-off signal for the transistor (4), the relay (19) is released, the contacts 1 and 2 are disconnected, the computer display screen is interrupted, and the computer stops using.

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PUM

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Abstract

The invention discloses a control circuit of a coin-operated computer. The control circuit is composed of a monostable circuit, a digital counter and displayer, an NAND gate, a transistor and a relay. After a coin is input into the computer, the computer is started, and two digital code start to count backwards; when digital codes count backwards to reach 0,0, the computer is turned off. Coins can be continuously input in the computer started period.

Description

technical field [0001] The invention relates to a practical circuit of a computer control device which can only be used by inserting coins into a coin slot. The circuit board made of the circuit diagram can be made into a coin-operated computer and a coin-operated Internet computer. Background technique [0002] At present, it is known that there are coin-operated vending machines in public places, but there is no circuit diagram of coin-operated online computers. Contents of the invention [0003] The present invention is composed of a coin acceptor, a control circuit, a computer mainframe, and a computer display screen. The control circuit is composed of a monostable circuit, a square wave generator, a digital counter and a digital display, a NAND gate, a transistor, and a relay. The rear digital display counts and starts counting down. At the same time, the computer display is turned on and the computer can be used. When the digital display counts down to "0.0", the dis...

Claims

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Application Information

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IPC IPC(8): G07F17/00
Inventor 李渤海
Owner 李渤海
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