CN203276287U - Timing switch device of computer - Google Patents

Abstract

A computer timing switch device belongs to the technical field of computer timing switches. It solves the problem that the service life of the computer is affected due to not shutting down the computer during use. The technical scheme of the computer timing switch device described in the utility model: the input terminal of the step-down rectifier circuit is connected to 220V AC power supply, the low-voltage output end of the step-down rectifier circuit is connected with the power supply input end of the monostable timer; the timing signal of the monostable timer The output terminal is connected with the timing signal input terminal of PLC; the timing switch instruction output terminal of PLC is connected with the timing switch instruction input terminal of the execution circuit; the execution output terminal of the execution circuit is connected with the enabling terminal of the computer switch; the bluetooth sending circuit is embedded to the remote controller; the bluetooth receiving circuit receives the on/off instruction of the bluetooth sending circuit; the on/off instruction output end of the bluetooth receiving circuit is connected with the on/off instruction input end of the PLC. The utility model is used for realizing automatic startup and shutdown of a computer.

Description

Computer timer switch device

technical field

The utility model relates to a computer timing switch device, which belongs to the technical field of computer timing switches.

Background technique

Today, computers have become an indispensable tool in people's work and life. The start-up and shutdown of the computer all need to occupy the time of the user. In use, the service life of the computer is often affected because it is too late or forgotten to turn off the computer. People are used to not cutting off the switching power supply, which causes unnecessary power consumption and is easy to cause fire hazards.

Contents of the invention

The utility model aims to solve the problem that the service life of the computer is affected due to not shutting down the computer during use, and provides a computer timing switch device.

The computer timing switch device described in the utility model includes a step-down rectifier circuit, a monostable timer, a PLC, an execution circuit, a computer switch, a bluetooth receiving circuit and a bluetooth sending circuit;

The input end of the step-down rectification circuit is connected to 220V AC power supply, and the low-voltage output end of the step-down rectification circuit is connected to the power input end of the monostable timer;

The timing signal output terminal of the monostable timer is connected with the timing signal input terminal of the PLC;

The timing switch instruction output terminal of the PLC is connected with the timing switch instruction input terminal of the execution circuit;

The execution output end of the execution circuit is connected with the enabling end of the computer switch;

The Bluetooth sending circuit is embedded in the remote control;

The bluetooth receiving circuit receives the switch instruction of the bluetooth sending circuit;

The power-on/off command output end of the bluetooth receiving circuit is connected with the power-on/off command input end of the PLC.

The utility model has the advantages that: the utility model sets the automatic startup and shutdown time of the computer to realize the automatic startup and shutdown of the computer according to the predetermined time. It can effectively prevent the phenomenon of forgetting to turn off the machine or not turning off the power supply, and it is safe and reliable to use, which is conducive to improving work efficiency.

The utility model has the advantages of convenient use, energy saving and prolonging the service life of the computer.

Description of drawings:

Fig. 1 is a functional block diagram of the computer timing switch device described in the present invention.

Detailed ways

Specific embodiment one: the present embodiment is described below in conjunction with Fig. 1, the computer timing switch device described in the present embodiment, it comprises step-down rectification circuit 1, monostable timer 2, PLC3, execution circuit 4, computer switch 5, bluetooth receiver Circuit 6 and Bluetooth sending circuit 7;

The input terminal of the step-down rectification circuit 1 is connected to a 220V AC power supply, and the low-voltage output terminal of the step-down rectification circuit 1 is connected to the power supply input end of the monostable timer 2;

The timing signal output end of monostable timer 2 is connected with the timing signal input end of PLC3;

The timing switch instruction output end of PLC3 is connected with the timing switch instruction input end of execution circuit 4;

The execution output terminal of the execution circuit 4 is connected with the enabling end of the computer switch 5;

Bluetooth sending circuit 7 is embedded in the remote controller;

The bluetooth receiving circuit 6 receives the switch instruction of the bluetooth sending circuit 7;

The switch machine instruction output terminal of bluetooth receiving circuit 6 is connected with the switch machine command input terminal of PLC3.

Monostable timer 2 is a timer based on NE555 chip.

The executive circuit 4 is realized by using a relay.

The monostable timer 2 utilizes the existing commercial power, and after step-down and rectification processing by the step-down rectifier circuit 1, it is used by the monostable timer 2. The monostable timer 2 has an input keyboard and a display. Directly input the startup and shutdown time of the computer, when the set time arrives, the monostable timer 2 outputs an overflow signal to PLC3, and the PLC3 outputs the on or off command, and the computer is switched on and off by the relay.

For ease of operation, a bluetooth receiving circuit 6 and a bluetooth sending circuit 7 are designed, and the computer can be turned on and off with a remote controller.

Claims (3)

1. A computer timing switch device, characterized in that: it includes a step-down rectifier circuit (1), a monostable timer (2), a PLC (3), an execution circuit (4), a computer switch (5), a Bluetooth receiver Circuit (6) and Bluetooth sending circuit (7); The input end of the step-down rectification circuit (1) is connected to a 220V AC power supply, and the low-voltage output end of the step-down rectification circuit (1) is connected to the power input end of the monostable timer (2); The timing signal output terminal of the monostable timer (2) is connected with the timing signal input terminal of the PLC (3); The timing switch instruction output terminal of the PLC (3) is connected with the timing switch instruction input terminal of the execution circuit (4); The execution output end of the execution circuit (4) is connected with the enabling end of the computer switch (5); The bluetooth sending circuit (7) is embedded in the remote controller; The bluetooth receiving circuit (6) receives the switch instruction of the bluetooth sending circuit (7); The power-on/off command output end of the Bluetooth receiving circuit (6) is connected with the power-on/off command input end of the PLC (3). 2. The computer timing switch device according to claim 1, characterized in that: the monostable timer (2) is a timer with NE555 chip as its core. 3. The computer timing switch device according to claim 1, characterized in that: the execution circuit (4) is realized by a relay.

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