CN2403067Y

CN2403067Y - Computer timing controller

Info

Publication number: CN2403067Y
Application number: CN 99222353
Authority: CN
Inventors: 高鹏; 王耀庭; 贾庆渝
Original assignee: Qingdao Free Trade Zone Hisense Computer Co Ltd; Hisense Group Co Ltd
Current assignee: Qingdao Free Trade Zone Hisense Computer Co Ltd; Hisense Group Co Ltd
Priority date: 1999-09-15
Filing date: 1999-09-15
Publication date: 2000-10-25
Anticipated expiration: 2009-09-15

Abstract

The utility model relates to an external type computer timing controller. Aiming at the time in the mode of countdown, the utility model uses microprocessor technology to control the work of an entire computer system. The time value can be set through a function key. The operating authority can be controlled by a key switch. When the utility model approaches to the predetermined time, a buzzer sends out sounds for alarming. When the countdown is over, a display system stops working. After the predetermined time for rest is over, the entire system returns to normal or when the countdown is over, the display system can be closed. The operating state of the display system can be controlled by a software system. A computer can work orderly and intermittently according to the schedule of the predetermined work and the predetermined time for rest. The utility model can intentionally remind users of safely and healthily using computers.

Description

A kind of computer timing controller

The utility model relates to a kind of computer timing controller.Be particularly related to a kind of external computer timing controller between main frame and display.

A difficult problem during current home computer is used is: most of children lack the self-control of using computer, the computer game of often too wallowing in or the computer learning of too wallowing in, and the heads of a family are not free and means are controlled better.If things go on like this, child's body and mind is subjected to injury in various degree, has run counter to the original intention of family's purchase computing machine fully.Therefore the heads of a family wish to have a kind of equipment (or control device) to control the time of using computer very much, make to use computer relaxation to be arranged as having on class in school, can improve learning efficiency and can protect physical and mental health effectively.

The purpose of this utility model provides a kind of external computer timing controller, makes computer arrange to carry out orderly discontinuous operation according to predetermined work, time of having a rest, remind consciously the user more safety and Health utilize computing machine.

In order to achieve the above object, the utility model connects and composes and uses a standard DB15 pin sun D type joint to connect host computer 8 by microprocessor 1, relay 2, demonstration charactron 3, hummer 4, button 5, key switch 6, power supply 7, uses cloudy D type joint connection of standard DB15 pin computer monitor 9 (referring to Fig. 1).Wherein the P37 of microprocessor (1) end is connected with the P37 end of control relay circuit; The P15 end of microprocessor (1) is connected with the SPK end of hummer control circuit; The P17 end of microprocessor (1) is connected with the DATA end of charactron display control circuit; The P16 end of microprocessor (1) is connected with the CLK end of charactron display control circuit; The P10 end of microprocessor (1) is connected with key switch circuit KEY end; Standard DB15 pin sun head is connected with D4 by two DB9 connector D3 with relay (2) with a cloudy D type joint, 7,8 ends of D3 connector are connected with VOUT, the HOUT of relay end, 7,8 ends of D4 connector and VIN, the HIN of relay end is connected, 1,2,3,4,5,6,9 ends of D3 connector and

D4 connector

1,2,3,4,5,6,9 end is corresponding is connected (referring to Fig. 2).

The utility model adopts microprocessor technology to control whole computer system work at the time in the countdown mode, time value is set by function key, operation permission is controlled by key switch, hummer sounding alarm near the schedule time time, then display system break-off that the countdown concluded, after the predetermined time of having a rest, it is normal that total system is recovered, also can directly cut off display system, the force users Shutdown Hosts is had a rest; Duty of the present utility model is controlled by software systems, and these software systems mainly comprise master control program, timer internal interrupt service subprogram, display subroutine (referring to Fig. 5,6,7); On this utility model control panel and interface panel, the layout of relevant functional part is shown in accompanying drawing 3,4.

This utility model is connected between host computer and the display, and aspects such as original performance of total system and stability are not had any harmful effect (as quality of video demonstration aspect etc.); This utility model is under the control of key switch, and the working time can be set arbitrarily, as 45 minutes, 1,2,3 hour or the like, set finish after, main frame, display enter normal duty; The countdown concluded when the time value of setting, and this utility model makes computer monitor enter dormant state, after the time of having a rest (as 15 minutes breaks) through regulation, recovers normal work again, realized the hope that allows children keep good hours.

Below in conjunction with accompanying drawing most preferred embodiment is carried out specific description:

Fig. 1 is that structure of the present utility model is formed synoptic diagram.

Fig. 2 is the circuit theory diagrams of the utility model embodiment.

Fig. 3 is the control panel synoptic diagram of the utility model embodiment

Fig. 4 is the interface panel synoptic diagram of the utility model embodiment

Fig. 5 is the software main program block diagram of the utility model embodiment

Fig. 6 is the utility model embodiment timer in-line interrupt service routine block diagram

Fig. 7 is the display subroutine block diagram of the utility model embodiment

In Fig. 1, the utility model embodiment with microprocessor 1, relay 2, show that charactron 3, hummer 4, button 5, key switch 6, power supply 7 organically link together by printed circuit board (PCB), be installed in the special-purpose cabinet, user's available dedicated stube cable is serially connected between host computer and the computer monitor the utility model is external, with the interface of display and main frame be standard 15 pins (hole) interface (with the interface of display one end be the cloudy heads in 15 holes, with the interface of display card one end be 15 pins sun head); Wherein the P37 of microprocessor (1) end is connected with the P37 end of control relay circuit; The P15 end of microprocessor (1) is connected with the SPK end of hummer control circuit; The P17 end of microprocessor (1) is connected with the DATA end of charactron display control circuit; The P16 end of microprocessor (1) is connected with the CLK end of charactron display control circuit; The P10 end of microprocessor (1) is connected with key switch circuit KEY end; Standard DB15 pin sun head is connected with D4 by two DB9 connector D3 with relay (2) with a cloudy D type joint, 7,8 ends of D3 connector are connected with VOUT, the HOUT of relay end, 7,8 ends of D4 connector and VIN, the HIN of relay end is connected, 1,2,3,4,5,6,9 ends of D3 connector and

D4 connector

1,2,3,4,5,6,9 end is corresponding is connected (referring to Fig. 2).

In Fig. 2, the utility model embodiment adopts microprocessor AT89C2051 systems technology, realize timing and control by software, when service time was more consistent with official hour, microprocessor sent control signal, the pilot relay action, cut off the vision signal of display and display card, mainly be row, field signal, thereby make display enter dormant state, reach the purpose that computer system is used in control.

In Fig. 3, functional part is on the utility model embodiment master control panel: 3 LED time display screen, one show hour, two show minute; Time set button, range of choice are 45 minutes, one hour, one hour 30 minutes, two hours, three hours equal time sections, repeat to press this key and can carry out different choice; (time-outs) button of having a rest, if the user presses this key, display enters dormant state, the utility model stops timing, can press the button once after user's rest finishes to work on or learn again; The normal open button, this key effect is to make display system be in normal open state, vision signal is not intervened; Turn-off button, this key effect is to make display system be in the normal off state; The power switch button, the utility model power supply can be obtained or obtain separately from host power supply, and rated voltage DC9V, rated current are not less than 500MA; Key switch, key are positioned at " opening " state, can select the function corresponding button to set accordingly, and key is positioned at " pass " state, and all function buttons lost efficacy, and no longer received any setting operation;

When the utility model is in the countdown state, restarts machine (RESET) countdown is not had influence, promptly as long as power supply is continuous, timing all the time, can be understood as actual herein is to carry out timing to powering up the time; If with dump of the present utility model, the utility model will cut off shows signal (under the normal condition, the utility model is always off state); If at the appointed time or recover vision signal during in shutdown and cut off the utility model power supply, even row start and open the utility model so again, the utility model still keeps alarm condition or off state;

Fig. 5, Fig. 6, Fig. 7 have described the utility model embodiment software work principle, and all software is write as by macro assembly language.The constant definition section has defined the relevant constant of eeromx25045, as: sign constant, the relevant constant of each button, loudspeaker control port, display VI HI control port, timer interrupt with register (all being decimal numbers), timer initialization or the like; Main circulating program mainly comprises: child's control program, the head of a family are provided with keyboard processing, the processing of time set key, the processing of rest key, Chang Kaijian processing, the processing of normally closed key, child's demonstration and the processing of child's keyboard or the like; The timer interrupt service routine mainly comprises: time Interrupt Process or the like; Display subroutine mainly comprises: show the decoding subroutine,, delay procedure or the like.

Claims

1. computer timing controller, connect and compose and use a standard DB15 pin sun D type joint to connect host computer (8) by microprocessor (1), relay (2), demonstration charactron (3), hummer (4), button (5), key switch (6), power supply (7), the cloudy D type joint of use standard DB15 pin connects computer monitor (9), it is characterized in that: the P37 end of microprocessor (1) is connected with the P37 end of control relay circuit; The P15 end of microprocessor (1) is connected with the SPK end of hummer control circuit; The P17 end of microprocessor (1) is connected with the DATA end of charactron display control circuit; The P16 end of microprocessor (1) is connected with the CLK end of charactron display control circuit; The P10 end of microprocessor (1) is connected with key switch circuit KEY end; Standard DB15 pin sun head is connected with D4 by two DB9 connector D3 with relay (2) with a cloudy D type joint, 7,8 ends of D3 connector are connected with VOUT, the HOUT of relay end, 7,8 ends of D4 connector and VIN, the HIN of relay end is connected, 1,2,3,4,5,6,9 ends of D3 connector and D4 connector 1,2,3,4,5,6,9 end is corresponding is connected.

2. computer timing controller according to claim 1, it is characterized in that: microprocessor (1), relay (2), demonstration charactron (3), hummer (4), button (5), key switch (6), power supply (7) organically link together by printed circuit board (PCB), and are installed in the special-purpose cabinet.