CN203630539U

CN203630539U - Graphics clock device

Info

Publication number: CN203630539U
Application number: CN201320736062.XU
Authority: CN
Inventors: 葛浩; 杨传健; 丁健
Original assignee: Chuzhou University
Current assignee: Chuzhou University
Priority date: 2013-11-20
Filing date: 2013-11-20
Publication date: 2014-06-04
Anticipated expiration: 2023-11-20

Abstract

The utility model discloses a graphics clock device comprising a single chip microcomputer AT89S52. The single chip microcomputer AT89S52 is connected with a clock circuit, a temperature sensing circuit, a key control circuit and a liquid crystal display device. The clock circuit is composed of a clock chip DS1302. The temperature sensing circuit is composed of a temperature sensor DS18B20. The key control circuit is composed of a plurality of buttons K1-K4. The graphics clock device of the utility model has the advantage of high timing accuracy, has the leap year compensation function, and can be used to satisfy the requirements of people on timing accuracy.

Description

A kind of figure clock apparatus

Technical field

The utility model relates to electronic clock field, is specially a kind of figure clock apparatus.

Background technology

Clock is a kind of conventional timing tool, and along with scientific and technical development, electronic clock becomes the conventional timing tool of people gradually.Existing electronic clock function is simple, and accuracy of timekeeping is low, cannot meet people's requirement.

Utility model content

The purpose of this utility model is to provide a kind of figure clock apparatus, the problem existing to solve prior art.

In order to achieve the above object, the technical scheme that the utility model adopts is:

A kind of figure clock apparatus, it is characterized in that: include single chip computer AT 89S52, on described single chip computer AT 89S52, have access to clock circuit, temperature sensing circuit, key control circuit and liquid crystal display, wherein clock circuit is made up of clock chip DS1302, the X1 pin of clock chip DS1302, between X2 pin, be connected to crystal oscillating circuit, the RST pin of clock chip DS1302, SCLK pin accesses respectively single chip computer AT 89S52, the RST pin of clock chip DS1302, SCLK pin, I/O pin also accesses primary power by pull-up resistor respectively, the GND pin ground connection of clock chip DS1302, the VCC1 pin access primary power of clock chip DS1302, the VCC1 pin of clock chip DS1302 is also successively by LED 0, resistance eutral grounding, between the VCC2 pin of clock chip DS1302 and GND pin, access battery as standby power supply, described temperature sensing circuit is made up of temperature sensor DS18B20, the GND pin ground connection of temperature sensor DS18B20, VD pin access power supply, the DQ pin access single chip computer AT 89S52 of temperature sensor DS18B20, described key control circuit is made up of multiple button K1-K4, and button K1-K4 one end connects rear ground connection altogether, and the button K1-K4 other end accesses respectively single chip computer AT 89S52.

Described a kind of figure clock apparatus, is characterized in that: on described single chip computer AT 89S52, also have access to crystal oscillating circuit and reset circuit.

The utility model adopts single chip computer AT 89S52 as main control module, and adopts clock chip DS1302 to form clock circuit, has higher accuracy of timekeeping, and possesses the function of leap year compensation, can meet the requirement of people to accuracy of timekeeping.

Accompanying drawing explanation

Fig. 1 is the utility model structured flowchart.

Fig. 2 is the utility model clock circuit schematic diagram.

Fig. 3 is the utility model temperature sensing circuit schematic diagram.

Fig. 4 is key control circuit schematic diagram.

Embodiment

As Figure 1-Figure 4.A kind of figure clock apparatus, include single chip computer AT 89S52, on single chip computer AT 89S52, have access to clock circuit, temperature sensing circuit, key control circuit and liquid crystal display, wherein clock circuit is made up of clock chip DS1302, the X1 pin of clock chip DS1302, between X2 pin, be connected to crystal oscillating circuit, the RST pin of clock chip DS1302, SCLK pin accesses respectively single chip computer AT 89S52, the RST pin of clock chip DS1302, SCLK pin, I/O pin also accesses primary power by pull-up resistor respectively, the GND pin ground connection of clock chip DS1302, the VCC1 pin access primary power of clock chip DS1302, the VCC1 pin of clock chip DS1302 is also successively by LED 0, resistance eutral grounding, between the VCC2 pin of clock chip DS1302 and GND pin, access battery as standby power supply, temperature sensing circuit is made up of temperature sensor DS18B20, the GND pin ground connection of temperature sensor DS18B20, VD pin access power supply, the DQ pin access single chip computer AT 89S52 of temperature sensor DS18B20, key control circuit is made up of multiple button K1-K4, and button K1-K4 one end connects rear ground connection altogether, and the button K1-K4 other end accesses respectively single chip computer AT 89S52.On single chip computer AT 89S52, also have access to crystal oscillating circuit and reset circuit.

Claims

1. a figure clock apparatus, it is characterized in that: include single chip computer AT 89S52, on described single chip computer AT 89S52, have access to clock circuit, temperature sensing circuit, key control circuit and liquid crystal display, wherein clock circuit is made up of clock chip DS1302, the X1 pin of clock chip DS1302, between X2 pin, be connected to crystal oscillating circuit, the RST pin of clock chip DS1302, SCLK pin accesses respectively single chip computer AT 89S52, the RST pin of clock chip DS1302, SCLK pin, I/O pin also accesses primary power by pull-up resistor respectively, the GND pin ground connection of clock chip DS1302, the VCC1 pin access primary power of clock chip DS1302, the VCC1 pin of clock chip DS1302 is also successively by LED 0, resistance eutral grounding, between the VCC2 pin of clock chip DS1302 and GND pin, access battery as standby power supply, described temperature sensing circuit is made up of temperature sensor DS18B20, the GND pin ground connection of temperature sensor DS18B20, VD pin access power supply, the DQ pin access single chip computer AT 89S52 of temperature sensor DS18B20, described key control circuit is made up of multiple button K1-K4, and button K1-K4 one end connects rear ground connection altogether, and the button K1-K4 other end accesses respectively single chip computer AT 89S52.

2. a kind of figure clock apparatus according to claim 1, is characterized in that: on described single chip computer AT 89S52, also have access to crystal oscillating circuit and reset circuit.