CN101745224A

CN101745224A - Quick-start method of simple pendulum working device

Info

Publication number: CN101745224A
Application number: CN200910194262A
Authority: CN
Inventors: 胡荣财
Original assignee: DONGGUAN GUANXIN CHILD ARTICLE Co Ltd
Current assignee: DONGGUAN GUANXIN CHILD ARTICLE Co Ltd
Priority date: 2009-11-30
Filing date: 2009-11-30
Publication date: 2010-06-23

Abstract

The invention discloses a quick-start method of a simple pendulum working device. The method comprises the following steps of: firstly, presetting and storing a preset duty ratio value; after a user starts the simple pendulum working device, transferring the preset duty ratio value by an MCU (Microprogrammed Control Unit); detecting the duty ratio of a power device in real time; comparing an actual detection value of the duty ratio with the preset value by the MCU; when the actual detection value is smaller than the preset value, improving the frequency for outputting the duty ratio by a certain multiple and repeating the real-time detection step; and when the actual detection value is larger than the preset value, recovering a normal duty ratio output frequency. The control method ensures that the simple pendulum working device can quickly reach a required speed after the simple pendulum working device is started so as to shorten the start time and improve the use effect.

Description

The quick start method of simple pendulum working device

Technical field

The present invention relates to pendulous device, be meant a kind of start-up time that shortens simple pendulum working devices such as electric swing or electric rocking chair especially, make it to reach fast the method for specified gear speed.

Background technology

Electric swing and electric rocking chair all are typical simple pendulum working devices, it is mainly used in the daily life, with the electric rocking chair is example, common electric rocking chair mainly comprises support and swing body, support fixedly installs on the ground, and the swing body is arranged on the support swingably, is provided with accommodating chamber in this swing body, and the baby can couch or be sitting in the inside; After connecting power supply, motor drives rotating shaft and rotates, thereby drive the swing of swing body, can make the baby be easy to fall asleep, or play the effect of amusement, compare the rocking chair structure that old-fashioned dependence manpower promotes, electric rocking chair uses convenient, laborsaving, yet, according to the principle of dynamics of simple harmonic motion, when single pendulum is at the highest notch, the gravitional force maximum, the kinetic energy minimum, gravitional force gradates and is kinetic energy in the decline process, when arriving minimum point, gravitional force reaches minimum of a value, and kinetic energy is maximum relatively, when the electric rocking chair initial start, generally is to be moved upward by minimum point, this moment must be by the driving of motor, just can overcome the effect of gravity, begin swing, yet, because the power output of motor immobilizes, particularly, make the swing body also can't arrive required swing speed immediately, thereby influenced result of use owing to the existence of frictional force.

In view of this, the inventor studies improvement at the Starting mode of electric swing that utilizes the single pendulum mode of operation at present or electric rocking chair, and this case produces thus.

Summary of the invention

Main purpose of the present invention is to provide a kind of quick start method of simple pendulum working device, and it can make simple pendulum working device arrive required speed fast after startup, shortens start-up time, improves result of use.

In order to reach above-mentioned purpose, solution of the present invention is:

A kind of quick start method of simple pendulum working device comprises the steps:

(1) preestablishes and stores the dutycycle preset value;

(2) after the user started simple pendulum working device, MCU called this dutycycle preset value;

(3) detect the dutycycle of power set in real time;

(4) MCU compares the actual detected value and the preset value of dutycycle, when actual detected value during less than this preset value, the frequency of output duty cycle is improved certain multiple, and repeating step (4) greater than this preset value, then recovers normal dutycycle output frequency until the actual detected value.

Described simple pendulum working device comprises a plurality of gears, and in step (1), corresponding each gear is all stored the dutycycle preset value of one group of correspondence; In the step (2), after the user starts simple pendulum working device, set position; MCU calls one group of dutycycle preset value of respective notch.

In the described step (3), MCU calculates dutycycle according to the forward and reverse output voltage of detected power set.

After adopting such scheme, the present invention is during to the simple pendulum working device initial start, dutycycle to its power set is carried out sample detecting, if be lower than preset value, the output frequency that then adds big space rate, make simple pendulum working device can arrive required speed rapidly, shorten start-up time, improve the result of use of simple pendulum working device.

Description of drawings

Fig. 1 is a workflow diagram of the present invention.

The specific embodiment

Below in conjunction with drawings and the specific embodiments workflow of the present invention and beneficial effect are elaborated.

With reference to shown in Figure 1, the invention provides a kind of quick start method of simple pendulum working device, comprise the steps:

Step 101 preestablishes and stores one group of dutycycle preset value, when this simple pendulum working device comprises a plurality of gear, then needs corresponding each gear one group of dutycycle preset value that all prestores;

Step 102, the user starts simple pendulum working device, set position (if having only a gear, then omit and set action);

Step 103, MCU calls one group of dutycycle preset value of corresponding set position;

Step 104, power set begin to drive rotating shaft rotates, and then drives the rocking chair swing, the MCU t1 that picks up counting;

Step 105 continue to detect the dutycycle of power set, and dutycycle specifically is that the forward and reverse output voltage of the power set that obtained by actual samples calculates through MCU herein;

Step 106 judges whether to arrive timing time t1, then changes step 109 if arrive, and no show then enters step 107;

Step 107, MCU compares the dutycycle actual detected value that calculates in the abovementioned steps 105 with corresponding preset value, when greater than preset value, illustrate that this moment, rocking chair reached required speed, then simple pendulum working device recovers normal frequency output duty cycle, EP (end of program); And, illustrate that the speed of rocking chair this moment does not also reach required speed when actual detected value during less than preset value, enter step 108;

Step 108, the MCU frequency of output duty cycle at this moment multiply by a multiplication factor (this multiplication factor can preestablish storage according to test or experience), improves the output frequency of dutycycle, continues the detection of next sampled point then, repeating step 105;

Step 109, when timing t1 arrived, MCU compared the actual detected value of dutycycle and the relation between the preset value, when actual detected value during greater than preset value, expression rocking chair this moment has reached required speed, and then simple pendulum working device recovers normal frequency output duty cycle, EP (end of program); And, enter step 110 when actual detected value during less than preset value;

Step 110, the t2 that picks up counting, repeating step 106 is higher than preset value until detected dutycycle actual value.

Spirit of the present invention is: in a period of time that simple pendulum working device begins to start, whether the actual detected value of judging dutycycle is greater than preset value, and less than preset value the time, improve the output frequency of dutycycle, till the actual detected value of dutycycle is greater than preset value, this method can make simple pendulum working device reach required swing speed fast, shorten start-up time, improve result of use.

Above embodiment only for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of being done on the technical scheme basis all falls within the protection domain of the present invention.

Claims

1. the quick start method of a simple pendulum working device is characterized in that comprising the steps:

(1) preestablishes and stores the dutycycle preset value;

(3) detect the dutycycle of power set in real time;

2. the quick start method of simple pendulum working device as claimed in claim 1, it is characterized in that: described simple pendulum working device comprises a plurality of gears, and in step (1), corresponding each gear is all stored the dutycycle preset value of one group of correspondence; In the step (2), after the user starts simple pendulum working device, set position; MCU calls one group of dutycycle preset value of respective notch.

3. the quick start method of simple pendulum working device as claimed in claim 1, it is characterized in that: in the described step (3), MCU calculates dutycycle according to the forward and reverse output voltage of detected power set.