CN201278246Y

CN201278246Y - National flag lifting apparatus controlled by microcontroller

Info

Publication number: CN201278246Y
Application number: CNU2009200176107U
Authority: CN
Inventors: 董红安; 李新; 贺向光
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-07
Filing date: 2009-01-07
Publication date: 2009-07-22
Anticipated expiration: 2019-01-07

Abstract

The utility model provides a flag raising device controlled by a single-chip microcontroller, which belongs to an improved flag raising device. A flag rod is fixed on a seat, the upper part of the flag rod is provided with a driven rotary wheel, the shaft of a stepping motor arranged on the seat is provided with a driving rotary wheel, the driving rotary wheel is connected with the driven rotary wheel through a wire, the stepping motor is electrically connected with a control circuit arranged in an electric control case, the control circuit is provided with the single-chip microcontroller, the input end of the single-chip microcontroller is electrically connected with a keyboard circuit and a power supply circuit, the output end of the single-chip microcontroller is electrically connected with an H bridge motor drive circuit module, the H bridge motor drive circuit module is electrically connected with the stepping motor, and the single-chip microcontroller is also electrically connected with an EEPROM module. The flag raising device solves the problem that the national flag raising and the national anthem playing are asynchronous, realizes the mechanization and automation of the national flag raising, reduces the labor intensity of the national flag raising and lowering and is convenient for operation; and the adoption of the stepping motor improves the accuracy in controlling the raising and the lowering of the national flag.

Description

Adopt monolithic processor controlled national flag jacking gear

Technical field

The utility model provides a kind of improved national flag jacking gear.

Background technology

At present, in units such as many schools of China, offices, the lifting national flag still adopts mode manually, its shortcoming be not easy to accomplish to raise national flag and play the national anthem synchronously.And lifting national flag labour intensity is big, the sensation effort, and when being raised national flag by children, the effort sense is more obvious.

Summary of the invention

Problem to be solved in the utility model is, provides a kind of employing monolithic processor controlled national flag jacking gear, with solution nonsynchronous problem of raising national flag and play the national anthem, and reduces the labour intensity of lifting national flag.

The utility model is to realize like this, adopt monolithic processor controlled national flag jacking gear, it has base, be fixed with flagpole on the base, flagpole top is equipped with passive runner, stepper motor is installed on the base, initiatively runner is installed on the axle of stepper motor, initiatively runner links together by cotton rope and passive runner, control circuit in stepper motor and the electric cabinet is electrically connected, on described control circuit, single-chip microcomputer is arranged, the input end of single-chip microcomputer is electrically connected with keyboard circuit and power circuit, is electrically connected with H bridge motor-drive circuit module on the output terminal of single-chip microcomputer, and H bridge motor-drive circuit module and stepper motor are electrically connected, LCD display, the national anthem sound circuit also is connected electrically in respectively on the output terminal of single-chip microcomputer, also is electrically connected with the EEPROM module on the single-chip microcomputer.

This national flag jacking gear has adopted Single-chip Controlling, has solved nonsynchronous problem of raising national flag and play the national anthem, realize mechanization, the robotization of lifting national flag, reduced the labour intensity of lifting national flag, easy and simple to handle, adopt stepper motor, improved the precision of lifting process control.And simple in structure, reliable operation is easy to apply.

Description of drawings

Fig. 1 is the synoptic diagram of the utility model structure.

Fig. 2 is the electrical schematic diagram of the control circuit in the utility model.

Embodiment

The embodiment that provides below in conjunction with accompanying drawing illustrates concrete structure of the present utility model and principle of work.

As shown in drawings, the monolithic processor controlled national flag jacking gear of the employing of the utility model, it has base 14, be fixed with flagpole 17 on the base, flagpole top is equipped with passive runner 19, stepper motor 1 is installed on the base, initiatively runner 12 is installed on the axle 15 of stepper motor, initiatively runner links together by cotton rope 16 and passive runner, control circuit in stepper motor and the electric cabinet 11 is electrically connected, single-chip microcomputer 3 is arranged on described control circuit, the input end of single-chip microcomputer is electrically connected with keyboard circuit 4 and power circuit 8, is electrically connected with H bridge motor-drive circuit module 2 on the output terminal of single-chip microcomputer, and H bridge motor-drive circuit module and stepper motor 1 are electrically connected, LCD display 5, national anthem sound circuit 6 also is connected electrically in respectively on the output terminal of single-chip microcomputer, also is electrically connected with EEPROM module 7 on the single-chip microcomputer.

The model of described single-chip microcomputer can be PIC16F877A.The model of EEPROM module can be X25045.It is the character type LCD display of LCM1602 that LCD display can adopt model.Power circuit is single-chip microcomputer and other modules, circuit supply.H bridge motor-drive circuit module 2 also abbreviates H bridge module, H bridge driving circuit or H bridge motor drive module as.The concrete structure of each module and keyboard circuit, power circuit, LCD display, national anthem sound circuit etc. and principle of work are with existing identical, be prior art, no longer describe in detail, those skilled in the art can select for use according to the needs of the control circuit in the utility model.

During use, national flag 18 is fastened on cotton rope.On the electric cabinet power light, power switch etc. can be arranged.The power supply of supply stepper motor is connected with stepper motor through H bridge motor-drive circuit module.Be electrically connected with buttons such as " rising ", " decline " on the keyboard circuit.Stepper motor can be fixed on the base by support plate 13.

Before the use, can be according to national anthem playing time (being generally 43 seconds), by measuring the flagpole height, calculate the rotating speed of stepper motor, realize control by single-chip microcomputer to this rotating speed, thereby realize raising national flag and play the national anthem synchronously.

Press " rising " button, the work of H bridge motor-drive circuit module, stepper motor gets, the axle of stepper motor drives initiatively, and runner rotates, cotton rope moves thereupon, national flag at the uniform velocity rises, the national anthem sound circuit plays the national hymn simultaneously, and EEPROM module real time modifying is also remembered the height of national flag upper end, and LCD display shows this height; After 43 seconds, national anthem is played and is finished, and national flag arrives the flagpole top, and LCD display shows the height of national flag upper end.Press " decline " button, national flag at the uniform velocity slowly moves down, and EEPROM module real time modifying is also remembered the position height of national flag, and up to end, the memory of EEPROM module is " 0 ", and LCD display is shown as " 0 ".

This national flag jacking gear also can be realized " flying the flag at half-mast " action of national flag.At this moment, press " rising " button, raise national flag, play the national hymn, EEPROM module real time modifying and remember national flag upper end height, after 43 seconds, national anthem stops, and national flag stops to rise; Then, national flag begins to move down, and the height of national flag upper end is revised and remembered to the EEPROM module, and LCD display shows this height.Drop to apart from 2/3 place, flagpole bottom up to national flag, national flag stops to move.

Claims

1, adopt monolithic processor controlled national flag jacking gear, it is characterized in that, it has base (14), be fixed with flagpole (17) on the base, flagpole top is equipped with passive runner (19), stepper motor (1) is installed on the base, initiatively runner (12) is installed on the axle of stepper motor (15), initiatively runner links together by cotton rope (16) and passive runner, control circuit in stepper motor and the electric cabinet (11) is electrically connected, single-chip microcomputer (3) is arranged on described control circuit, the input end of single-chip microcomputer is electrically connected with keyboard circuit (4) and power circuit (8), be electrically connected with H bridge motor-drive circuit module (2) on the output terminal of single-chip microcomputer, H bridge motor-drive circuit module and stepper motor (1) are electrically connected, LCD display (5), national anthem sound circuit (6) also is connected electrically in respectively on the output terminal of single-chip microcomputer, also is electrically connected with EEPROM module (7) on the single-chip microcomputer.