CN202522861U

CN202522861U - Pointer-type clock device

Info

Publication number: CN202522861U
Application number: CN 201220181954
Authority: CN
Inventors: 赵秀芝
Original assignee: Zhejiang Industry and Trade Vocational College
Current assignee: Zhejiang Industry and Trade Vocational College
Priority date: 2012-04-25
Filing date: 2012-04-25
Publication date: 2012-11-07
Anticipated expiration: 2022-04-25

Abstract

The utility model discloses a pointer-type clock device. The pointer-type clock device is characterized by comprising a power module, an AT89S52 single-chip microcomputer, a clock generator, a real-time clock chip, a liquid crystal display module, a storage and an expanded port. The pointer-type clock device has the advantages of being easily acceptable for consumers by utilizing the single-chip microcomputer to achieve clock display in a pointer form. The single-chip microcomputer has the advantages of being small in size, light in weight, strong in capacity of resisting disturbance, low in environmental requirement and price, easy to develop and the like. Meanwhile, the pointer-type clock device can be interacted with an external personnel computer (PC) through the expanded port and therefore has high expandability.

Description

A kind of pointer clock device

Technical field

The utility model relates to a kind of single-chip microcomputer application technology, specifically is meant a kind of pointer clock device.

Background technology

Clock is a requisite daily necessities during everyone lives, though clock is little extremely important, a good clock can bring great convenience to people.Along with development of times; The form of clock is clockwise electronic type clock transition during also by traditional mechanical; Present electronic type clock generally all is directly to adopt LED that temporal information is shown through digital form; Form is more single, and extendability is relatively poor, and is not ideal enough with existing home PC communication interactivity.

Summary of the invention

The purpose of the utility model is in order to overcome the shortcoming and defect that prior art exists, and provides a kind of employing pointer form to carry out time showing, and a kind of pointer clock device of favorable expandability.

For realizing above-mentioned purpose, the technical scheme of the utility model is pointer clock apparatus, comprises with lower unit:

Power module is used for each unit power supply;

Single-chip microcomputer, this single-chip microcomputer are AT89S52;

Clock generator is connected on the single-chip microcomputer, is used for to single-chip microcomputer clock signal being provided; This clock generator is PCF8563;

Real-time timepiece chip is connected on the single-chip microcomputer, is used for reading of real-time clock;

LCD MODULE is connected on the single-chip microcomputer, is used for pointer form read clock;

Storer is connected on the single-chip microcomputer, is used for the storage of real time clock chip and drives and the MCU driving program;

Expansion interface is connected on the single-chip microcomputer, is used for carrying out data communication with exterior PC.

Further being provided with is that described expansion interface includes: and the serial communication interface between the host computer, adopt RS232 or RS485 interface; And USB communication interface between the host computer or carrier communication interface.

Further being provided with is the mode of operation that adopts serial between described single-chip microcomputer and the liquid crystal display.

The utility model has the advantages that the clock that utilizes chip microcontroller pointer form shows, receive consumer's acceptance easily, and single-chip microcomputer to have a volume little; In light weight, antijamming capability is strong, and environmental requirement is not high; Cheap, develop advantageous feature such as easy, in addition; Utilize expansion interface, can carry out alternately with exterior PC, extensibility is strong.

Below in conjunction with Figure of description and embodiment the utility model is done further introduction.

Description of drawings

Fig. 1 the utility model embodiment theory diagram.

Embodiment

Through embodiment the utility model is carried out concrete description below; Only be used for the utility model is further specified; Can not be interpreted as the qualification to the utility model protection domain, the technician in this field can make some nonessential improvement and adjustment to the utility model according to the content of above-mentioned utility model.

The embodiment of the utility model as shown in Figure 1 comprises with lower unit:

Power module is used for each unit power supply; The described power supply of present embodiment comprises and includes two groups, and wherein one group is the 5V power supply, is connected to directly power supply on the single-chip microcomputer, and other one the tunnel is connected on the real-time timepiece chip and supplies power; Single-chip microcomputer, this single-chip microcomputer are AT89S52; Clock generator is connected on the single-chip microcomputer, is used for to single-chip microcomputer clock signal being provided; This clock generator is PCF8563; Real-time timepiece chip is connected on the single-chip microcomputer, is used for reading of real-time clock; Inaccurate clock signal is read and shows.

LCD MODULE is connected on the single-chip microcomputer, is used for pointer form read clock, and this LCD MODULE is 12864 liquid crystal displays;

Storer is connected on the single-chip microcomputer, is used for the storage of real time clock chip and drives and the MCU driving program, and this storer adopts the RAM storer; Expansion interface is connected on the single-chip microcomputer, is used for carrying out data communication with exterior PC, and present embodiment, described expansion interface includes: and the serial communication interface between the host computer, adopt RS232 or RS485 interface; And USB communication interface between the host computer or carrier communication interface.

In addition, adopt the mode of operation of serial between described single-chip microcomputer of present embodiment and the liquid crystal display.

Claims

1. pointer clock device is characterized in that comprising with lower unit:

Power module is used for each unit power supply;

Single-chip microcomputer, this single-chip microcomputer are AT89S52;

Clock generator is connected on the single-chip microcomputer, is used for to single-chip microcomputer clock signal being provided;

2. a kind of pointer clock device according to claim 1, it is characterized in that: described expansion interface includes: and the serial communication interface between the host computer, adopt RS232 or RS485 interface; And USB communication interface between the host computer or carrier communication interface.

3. a kind of pointer clock device according to claim 1 and 2 is characterized in that: the mode of operation that adopts serial between described single-chip microcomputer and the liquid crystal display.