CN201649869U

CN201649869U - Password input and control device of electronic coded lock

Info

Publication number: CN201649869U
Application number: CN2010201581451U
Authority: CN
Inventors: 徐志伟
Original assignee: SHANGHAI BUDDY DIGITAL TECHNOLOGY Co Ltd
Current assignee: SHANGHAI BUDDY DIGITAL TECHNOLOGY Co Ltd
Priority date: 2010-04-14
Filing date: 2010-04-14
Publication date: 2010-11-24
Anticipated expiration: 2020-04-14

Abstract

The utility model discloses a password input and control device of an electronic coded lock, which comprises an operation panel and internal electronic components thereof, wherein the operation panel is a touch liquid crystal display (LCD) screen, and the internal electronic components include a liquid crystal display, a capacity inducted keyboard, a capacity inducted keyboard processing unit, a main control module, an auxiliary driving control module and an electronic lock actuating mechanism. The utility model adopts a capacitive touch screen, the main control module controls the display contents of the liquid crystal display, the keyboard area on the liquid crystal display does not display contents on standby, and after the display is activated, randomly arranged keyboards are displayed by a built-in algorithm in a singlechip of the main control module, so use traces left after long-term use do not have correspondence with the used password so as to improve the anti-theft performance of the electronic coded lock.

Description

A kind of password input and control device of electronic password lock

Technical field

The utility model relates to the design and the manufacturing technology of strongbox lock, is specifically related to a kind of password input and control device of electronic password lock.

Background technology

The button password input operation mode of traditional array fixed-site is adopted in the control of existing strongbox electronic password lock, after long-term the use, can stay the use vestige on the numeric keypad surface, and therefore the privacy of electronic password lock can suffer damage.

The utility model content

The purpose of this utility model is, a kind of password input and control device of electronic password lock is provided, with the defective of the button password input operation mode that overcomes the array fixed-site.

The technical solution of the utility model is as follows:

A kind of password input and control device of electronic password lock, comprise guidance panel and inner electronic component, it is characterized in that: described guidance panel is a touch LCD screen, and the electronic component of described inside comprises liquid crystal display display, capacitive sensing keyboard, capacitive sensing keyboard processing unit, main control module, assistive drive control module and electronic lock executing agency; Described liquid crystal display display is by LCDs, LED-backlit source and display driver interface are formed, described capacitive sensing keyboard is the ITO indium tin oxide coated semiconductor that is positioned at the LCDs inner surface, described capacitive sensing keyboard processing unit is by the induction keyboard compute chip, induction keyboard input interface and I2C twin wire serial bus interface are formed, described main control module is by main control singlechip, liquid crystal display drives interface, I2C twin wire serial bus interface and UART serial communication interface are formed, and described assistive drive control module is by auxiliary control single chip computer, UART serial communication interface and executing agency drive interface and form; The capacitive sensing keyboard is connected with capacitive sensing keyboard processing unit by the induction keyboard input interface; The I2C twin wire serial bus interface of capacitive sensing keyboard processing unit and the I2C twin wire serial bus interface of main control module are connected; Liquid crystal display driving interface in the main control module is connected with the display driver interface in the liquid crystal display display; UART serial communication interface in the main control module is connected with the UART serial communication interface of assistive drive control module; The auxiliary control single chip computer of assistive drive control module drives interface by executing agency and is connected with electronic lock executing agency.

The password input and the control device of above-mentioned electronic password lock adopt capacitive touch screen, the displaying contents of main control module controls liquid crystal display, displaying contents not during keyboard area standby on the LCDs, after being activated, the keyboard that shows random alignment by the built-in algorithms in the single-chip microcomputer of main control module, therefore, there are not corresponding relation in the use vestige and the employed password that stay after long-term the use, thereby have improved the theftproof performance of electronic password lock.

Description of drawings

Fig. 1 is the password input and the control device theory diagram of the utility model electronic password lock;

Fig. 2 is the liquid crystal display display principles block diagram in the utility model;

Fig. 3 is the main control module principle block diagram in the utility model;

Fig. 4 is the capacitive sensing keyboard processing unit theory diagram in the utility model;

Fig. 5 is the assistive drive control module theory diagram in the utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.

As shown in Figure 1, input of the password of the utility model electronic password lock and control device are made up of liquid crystal display display 1, main control module 2, assistive drive control module 3, capacitive sensing keyboard processing unit 6, capacitive sensing keyboard 5 and electronic lock executing agency 4.Capacitive sensing keyboard 5 is one deck ITO indium tin oxide coated semiconductors that are positioned at LCDs 7 inner surfaces, and the electrode that the key position of this coating is drawn is connected with the induction keyboard input interface.As shown in Figure 2, liquid crystal display display 1 is made up of LCDs 7, LED-backlit source 8 and display driver interface 9.As shown in Figure 3, main control module 2 drives interface 11, I2C (Inter-Integrated Circuit) twin wire serial bus interface 12 and UART (universal asynchronous receiver and transmitter) serial communication interface 13 by main control singlechip 10, liquid crystal display and forms.Also be integrated with EEPROM in the main control singlechip 10.As shown in Figure 4, capacitive sensing keyboard processing unit 6 is made up of induction keyboard compute chip 14, induction keyboard input interface 15 and I2C (Inter-Integrated Circuit) twin wire serial bus interface 16.As shown in Figure 5, assistive drive control module 3 is made up of auxiliary control single chip computer 17, UART serial communication interface 18 and executing agency's driving interface 19.

The password input of above-mentioned electronic password lock and the connected mode and the principle of each unit of control device are as follows:

Capacitive sensing keyboard 5 sends touch information to induction keyboard compute chip 14 by the induction keyboard input interface 15 in the capacitive sensing keyboard processing unit 6; After induction keyboard compute chip 14 calculates the result, be connected with I2C twin wire serial bus interface 12 in the main control module 2, data are sent to main control singlechip 10 by I2C twin wire serial bus interface 16; Main control singlechip 10 drives interface 11 by liquid crystal display and is connected the state in content displayed and LED-backlit source 8 on the control LCDs 7 with display driver interface 9 in the liquid crystal display display 1; Main control singlechip 10 in the main control module 2 is after the data encryption, and the UART serial communication interface 18 by UART serial communication interface 13 and assistive drive control module 3 is connected, and data are sent to auxiliary control single chip computer 17; After auxiliary control single chip computer 17 deciphering comparisons, drive interface 19 control electronic lock executing agencies 4 by executing agency and carry out corresponding action.

The operation of input of the password of above-mentioned electronic password lock and control device and running, principle are as follows:

The first step, the keyboard area of finger contact liquid crystal display display 1, capacitive sensing keyboard 5 are sensed and are touched back activation capacitive sensing keyboard processing unit 6; Capacitive sensing keyboard processing unit 6 activates main control module 2; Main control module 2 is determined keyboard position according to built-in algorithm, and the demonstration of control liquid crystal display display 1, and the keyboard that computing is drawn is presented at the keyboard area of liquid crystal display display 1.Second step, the numeric keypad that finger contact liquid crystal display display 1 keyboard area shows, capacitive sensing keyboard 5 passes to capacitive sensing keyboard processing unit 6 to touch information after sensing touch information, draw corresponding digital by 6 computings of capacitive sensing keyboard processing unit, and pass to main control module 2, finish the password input, main control module 2 is presented at the numerical ciphers of input the password viewing area of LCDs 7.The 3rd goes on foot, and gives assistive drive control module 3 password transmission by main control module 2, carries out the password comparison by assistive drive control module 3, if the password of input is a proper password, then assistive drive control module 3 driving electronic lock executing agencies 4 carry out opening door operation.

Claims

1. the password of an electronic password lock is imported and control device, comprise guidance panel and inner electronic component, it is characterized in that: described guidance panel is a touch LCD screen, and the electronic component of described inside comprises liquid crystal display display, capacitive sensing keyboard, capacitive sensing keyboard processing unit, main control module, assistive drive control module and electronic lock executing agency; Described liquid crystal display display is by LCDs, LED-backlit source and display driver interface are formed, described capacitive sensing keyboard is the ITO indium tin oxide coated semiconductor that is positioned at the LCDs inner surface, described capacitive sensing keyboard processing unit is by the induction keyboard compute chip, induction keyboard input interface and I2C twin wire serial bus interface are formed, described main control module is by main control singlechip, liquid crystal display drives interface, I2C twin wire serial bus interface and UART serial communication interface are formed, and described assistive drive control module is by auxiliary control single chip computer, UART serial communication interface and executing agency drive interface and form; The capacitive sensing keyboard is connected with capacitive sensing keyboard processing unit by the induction keyboard input interface; The I2C twin wire serial bus interface of capacitive sensing keyboard processing unit and the I2C twin wire serial bus interface of main control module are connected; Liquid crystal display driving interface in the main control module is connected with the display driver interface in the liquid crystal display display; UART serial communication interface in the main control module is connected with the UART serial communication interface of assistive drive control module; The auxiliary control single chip computer of assistive drive control module drives interface by executing agency and is connected with electronic lock executing agency.