CN203444278U

CN203444278U - Multifunctional automatic ringing control system device

Info

Publication number: CN203444278U
Application number: CN201320591147.3U
Authority: CN
Inventors: 董冰; 冯祥
Original assignee: Zhejiang Normal University CJNU
Current assignee: Zhejiang Normal University CJNU
Priority date: 2013-09-13
Filing date: 2013-09-13
Publication date: 2014-02-19
Anticipated expiration: 2023-09-13

Abstract

The utility model discloses a multifunctional automatic ringing control system device. The multifunctional automatic ringing control system device comprises a single-chip microcomputer controller, a keying circuit, a display circuit, a driving circuit and an electric bell. The multifunctional automatic ringing control system device can adjust the time freely to realize the normal school bell, and also possesses a cipher protection function and an emergency ringing function. The experimental results show that the multifunctional automatic ringing control system device has the characteristic of reliable performance, visual display, compact circuit and low cost, etc., and has a certain application value.

Description

A kind of multi-functional automatic ringing control system device

Technical field

The utility model relates to a kind of multi-functional automatic ringing control system device.

Background technology

Fast development along with Time Technology, the achievement of the modern electronic technology such as microelectronics and computing machine has been brought huge impact and revolutionary impact to traditional electronic device, the timer that electric bell forms from SIC (semiconductor integrated circuit) through classical electron Age of Technology, modern electronic technology epoch to present single-chip microcomputer contemporary electronic systems epoch of starting and the electric bell made; But the tinkle of bells that we generally hear now relaxes not, the time of ringing a bell is accurate not, can not freely arrange, and function is also very single.

The purpose of this utility model is to provide a kind of automatic ringing control system device that the time is accurate, the time can freely be adjusted, the tinkle of bells relaxes of ringing a bell.

A kind of multi-functional automatic ringing control system device of the present utility model, comprises singlechip controller, key circuit, display circuit, driving circuit and electric bell; Described key circuit connects singlechip controller; Described singlechip controller connects respectively display circuit and driving circuit; Described driving circuit connects electric bell.

As preferably, described single-chip microcomputer master controller is AT89C51 single-chip microcomputer.

Further, described key circuit forms by adding 1 key, mode selecting key and three buttons of definite key.

Further, described display circuit is to show with the charactron of two quaternities.

Further, described driving circuit is mainly that 1k Ω resistance and hummer form by positive-negative-positive triode, resistance.

The beneficial effects of the utility model are: can not only carry out freely adjusting of time; realize and go to school and leave school and ring a bell normally; and there is cipher protection function and the function of promptly ringing a bell; the utlity model has dependable performance; intuitive display, simple circuit, the feature such as with low cost, have certain using value.

Accompanying drawing explanation

Fig. 1 is design system general diagram of the present utility model;

Fig. 2 is the utility model hardware overall circuit figure;

Fig. 3 is button subroutine flow chart of the present utility model;

Fig. 4 clock subroutine flow chart of the present utility model;

Fig. 5 cryptoguard subroutine flow chart of the present utility model;

Fig. 6 subroutine flow chart of ringing a bell of the present utility model.

Embodiment:

Refer to Fig. 1, the multi-functional automatic ringing control system of the utility model device, comprises singlechip controller, key circuit, display circuit, driving circuit and electric bell; Described key circuit connects singlechip controller; Described singlechip controller connects respectively display circuit and driving circuit; Described driving circuit connects electric bell.

Refer to Fig. 2, described key circuit adopts free-standing button, receives respectively port P1.0 mouth, P1.1 mouth and the P1.2 mouth of single-chip microcomputer, and the pull-up resistor of the 10k that connects respectively, prevents from disturbing and increasing the stability of circuit; Described display circuit shows with the charactron of two quaternities, adopts the P0 mouth of single-chip microcomputer to make segment encode mouth, and P1 mouth is made position choosing end; Described driving circuit is that 1k Ω resistance and hummer form by positive-negative-positive triode, resistance, utilize positive-negative-positive triode to complete the driving of hummer, resistance of base stage series connection of triode is received the P3.7 interface of AT89C51, low level signal is delivered to the P3.7 mouth of single-chip microcomputer, triode conducting, thus hummer work ordered about.

Refer to Fig. 3-Fig. 6, entire system flow process realizes by button program the function that adjustment time, input password and pressure are rung a bell, and when having button to press, single-chip microcomputer is made corresponding judgement, and carries out the function of this button; By timing routine, show current time and current time and the schedule time are compared, when identical with the schedule time, realize normally and go to school and leave school and ring a bell; By cryptoguard program, prevent that other people from distorting the time arbitrarily, destroy the normal campus daily schedule; By the subroutine of ringing a bell, remind student to attend class the time after class, and when running into emergency condition, remind in time student to evacuate as early as possible.

Above-described embodiment; it is an example of the present utility model; be not for limiting enforcement of the present utility model and interest field, all or technical schemes of being equal to identical with content described in the utility model claim, all should be included in the utility model protection domain.

Claims

1. a multi-functional automatic ringing control system device, is characterized in that: comprise singlechip controller, key circuit, display circuit, driving circuit and electric bell; Described key circuit connects singlechip controller; Described singlechip controller connects respectively display circuit and driving circuit; Described driving circuit connects electric bell.

2. multi-functional automatic ringing control system device according to claim 1, is characterized in that: described singlechip controller is AT89C51 single-chip microcomputer.

3. multi-functional automatic ringing control system device according to claim 1, is characterized in that: described key circuit forms by adding 1 key, mode selecting key and three buttons of definite key.

4. multi-functional automatic ringing control system device according to claim 1, is characterized in that: described display circuit is to show with the charactron of two quaternities.

5. multi-functional automatic ringing control system device according to claim 1, is characterized in that: described driving circuit is mainly that 1k Ω resistance and hummer form by positive-negative-positive triode, resistance.