CN2434734Y

CN2434734Y - Opening user's secret key editing marking device

Info

Publication number: CN2434734Y
Application number: CN 99252286
Authority: CN
Inventors: 沈新
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-27
Filing date: 1999-12-27
Publication date: 2001-06-13
Anticipated expiration: 2009-12-27

Abstract

The utility model relates to an opening user secret key editing marking device which comprises a monolithic computer (1), a non-loss memory (4), a keyboard array (5), a driver (3) of a liquid crystal display and a display (2), wherein, the no-loss memory (4) is connected with an interface line of the monolithic computer (1) and is used for storing starting secret key, the keyboard array (5) is formed by a plurality of keys and is connected with the interface line of the monolithic computer (1) through a column output line and a line input line, the driver (3) of the liquid crystal display is connected with the interface line of the monolithic computer (1), and the display (2) is connected with a data line of the driver (3) of the liquid crystal display. The utility model is characterized in that the utility model also comprises a clock chip (6), and the interface line on the monolithic computer (1) is connected with a time signal input end / output end on the clock chip (6). The utility model enables operators to input real operating time and stops the cheat possibility.

Description

Open user key editing marking device

The utility model relates to a kind of digital machine of handling bank money.

In the prior art, the utility model patent that Patent Office of the People's Republic of China announces CN2195779Y April 26 nineteen ninety-five, the keyboard array that a plurality of keys that it comprises single-chip microcomputer, deposit the non-loss memory of start key with mouth line being used to of being connected of single-chip microcomputer, be connected with the mouth line of single-chip microcomputer by column output line and row incoming line are formed, the LCD driver that is connected with mouthful line of single-chip microcomputer, the display that is connected with the data line of LCD driver.But, the date of issuance of voucher or bill is made a fundamental of authentication as bill, in above-mentioned prior art, take the method for manual input usually, thereby be difficult to control for the authenticity on date, can import the some dates before or after work at present day, its consequence is can squeeze on the voucher holiday phase of operator when not on duty, makes operating personnel that the possibility of cheating be arranged.

The open user key editing marking device of the current date when the purpose of this utility model is to provide the automatic generating run of a kind of energy.

The technical solution of the utility model is: a kind of open user key editing marking device, the keyboard array that a plurality of keys that it comprises single-chip microcomputer, deposit the non-loss memory of start key with mouth line being used to of being connected of single-chip microcomputer, be connected with the mouth line of single-chip microcomputer by column output line and row incoming line are formed, the LCD driver that is connected with mouthful line of single-chip microcomputer, the display that is connected with the data line of LCD driver; It also comprises clock chip, and the mouth line on the described single-chip microcomputer is connected with the time signal I/O end on the clock chip.

The utility model compared with prior art has following advantage:

Owing to the utility model has a clock chip, can generate current date automatically, the operator ticket is compiled and escorted when calculating and need not also can't import the date, guarantee uniqueness and the authenticity of the date of issuance of voucher technically.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is circuit theory diagrams of the present utility model;

Accompanying drawing 2 is a circuit block diagram of the present utility model; Wherein:

[1], single-chip microcomputer; [2], display; [3], driver: [4], memory; [5], keyboard array; [6], clock chip;

Embodiment: referring to accompanying drawing 1 and accompanying drawing 2, a kind of open user key editing marking device, the keyboard array [5] that a plurality of keys that it comprises single-chip microcomputer [1], deposit the non-loss memory [4] of start key with mouth line being used to of being connected of single-chip microcomputer [1], be connected with the mouth line of single-chip microcomputer [1] by column output line and row incoming line are formed, the LCD driver [3] that is connected with mouthful line of single-chip microcomputer [1], the display [2] that is connected with the data line of LCD driver [3]; Above structure can be consulted the instructions shown in the CN2195779Y.The utility model also comprises clock chip [6], its model is DS1302, RST wherein is a reset line, and SCL is a serial clock, and X1, X2 are the crystal oscillator pin, GND is ground, I/O is the time data input/output line, the power lead of VCC2 for being connected with the utility model, and VCC1 is connected on the independent current source E of clock chip [6], in the time of can making power-off of the present utility model, this clock chip [6] still can self-clocking.Mouth line P2.4 on the described single-chip microcomputer [1] is connected with the time signal I/O end I/O on the clock chip [6].

Claims

1, a kind of open user key editing marking device, the keyboard array [5] that a plurality of keys that it comprises single-chip microcomputer [1], deposit the non-loss memory [4] of start key with mouth line being used to of being connected of single-chip microcomputer [1], be connected with the mouth line of single-chip microcomputer [1] by column output line and row incoming line are formed, the LCD driver [3] that is connected with mouthful line of single-chip microcomputer [1], the display [2] that is connected with the data line of LCD driver [3]; It is characterized in that: it also comprises clock chip [6], and the mouth line on the described single-chip microcomputer [1] is connected with the time signal I/O end on the clock chip [6].