CN110025099B

CN110025099B - Movable watchband capable of sensing dust and method

Info

Publication number: CN110025099B
Application number: CN201910229810.7A
Authority: CN
Inventors: 辛义忠; 褚智洁; 李岩
Original assignee: Shenyang University of Technology
Current assignee: Shenyang University of Technology
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2021-02-05
Anticipated expiration: 2039-03-26
Also published as: CN110025099A

Abstract

The movable watchband capable of sensing dust comprises a watchband body, wherein a micro camera, a pressure sensing button, a strain gauge, an A/D converter, a recognizer, a dust control plate, a pressure control plate, a strain control plate, a battery plate and a watchband adjuster are arranged on the watchband body; the watchband can automatically stretch when dust particles are sensed. When the dust particle increases and the person of wearing lifts up the arm, roll the watchband and be released, the ring grow that the watchband encloses, wrist-watch is along the radial downstream of the arm that lifts up to far away from the wrist, and then reach the purpose of keeping away from the dust source, prevent that the wrist-watch from advancing the ash. When the dust particles are reduced and the wearer puts down his arm, the rolling strap is recovered and the watch moves radially, gradually returning to the original position. The wristband may also be manually extended and retracted when a user presses a pressure sensitive button on the wristband. And because the main body of the watch is the watchband, the watch can be installed on any watch, and the portability is strong.

Description

Movable watchband capable of sensing dust and method

Technical Field

The invention relates to a watchband, in particular to a movable watchband capable of sensing dust.

Background

The watch is one of daily necessities of people. In daily life, however, the watch does not move radially automatically, but only manually by the wearer. For example, when the watch is near a dust source and the hands are busy, a dust ingress condition may occur in the watch face. The problems of blurred watch mirror and inaccurate pointer can be caused after the dial plate enters the grey.

Disclosure of Invention

The purpose of the invention is as follows:

the invention provides a movable watchband capable of sensing dust, and aims to solve the problems in the prior art. When the dust particles increase and the wearer lifts his arm, the rolling watchband is released and the watch moves radially, away from the dust source, preventing the watch from getting ashed. When the dust particles are reduced and the wearer puts down his arm, the rolling strap is recovered and the watch moves radially, gradually returning to the original position. The wristband may also be manually extended and retracted when a user presses a pressure sensitive button on the wristband.

The technical scheme is as follows: the invention is realized by the following technical scheme:

can respond to portable watchband of dust, including the watchband body, its characterized in that: the watchband body is provided with a miniature camera, a pressure sensing button, a strain gauge, an A/D converter, a recognizer, a dust control plate, a pressure control plate, a strain control plate, a battery plate and a watchband adjuster; the strain gauge, the A/D converter, the recognizer, the dust control panel, the pressure control panel, the strain control panel and the battery panel are arranged on the inner side of the watchband body (the strain gauge and the pressure sensor at the back can be slightly higher than the inner side of the watchband body for fully contacting with an arm due to the fact that the strain gauge and the pressure sensor are flush with the inner side of the watchband body), and the miniature camera and the pressure sensing button are arranged on two sides of the watchband body; the watchband adjuster is arranged on the outer side of the watchband body;

miniature camera, forced induction button and foil gage all link to each other with the AD converter, and the recognizer links to each other with the AD converter, and dust control board, pressure control board and foil gage all link to each other with the recognizer, and dust control board, pressure control board and foil gage all link to each other with the watchband regulator.

The miniature camera head is established in the side of the watchband body (watchband body is inboard to the one side of the reader in figure 1 promptly in being close to the dial plate, the watchband body outside is exactly the back of figure 1), the forced induction button is established in another side department of the watchband body that is close to the dial plate, the foil gage is established between miniature camera head and forced induction button, the AD converter is established in the below of foil gage (the below is exactly the below by the direction that the dial plate begins to extend to watchband body length direction), the recognizer is established in the below of AD converter, the below at the recognizer is established to the strain control board, the left side at the strain control board is established to the dust control board, the right side at the strain control board is established to the pressure control board, the watchband body is inboard also located to the panel, the watchband regulator is established in the below of.

The watchband adjuster comprises an automatic gyroscope, an automatic disc, a gear, a spring box, a spring, a rolling rod, a rolling watchband, a valve, a motor and a valve control panel, wherein the valve control panel is connected with a dust control panel, a pressure control panel and a strain control panel; one end of the valve is sleeved on an output shaft of the motor, and the other end of the valve is driven to swing through the rotation of the motor.

The winding of roll watchband is on the roll rod, and the gear engagement automatic dish of automatic top bottom, automatic dish are connected the spring box (automatic dish meshing a fluted disc, and a pivot is connected to the fluted disc, and the pivot stretches into in the spring box, stretches into the partial winding clockwork spring in the spring box), twines the clockwork spring in the spring box, and the other end of clockwork spring stretches out and twines on the roll rod in following the spring box, through the positive and negative rotation of the last strength and the loose strength control roll rod of clockwork spring. Fig. 2 is an internal structure view of the band regulator.

The movable watchband also comprises a pressure sensor, and the pressure sensor is connected with the valve control panel.

The valve is a structure which limits the rolling rod to rotate when contacting the rolling rod and releases the limitation on the rolling rod after leaving the rolling rod.

One end of the rolling rod is provided with a limiting gear, the valve is of a swing rod structure, and when the valve swings to a position between two teeth of the limiting gear, the rotation of the rolling rod is limited.

The control method of the movable watchband capable of sensing dust is characterized in that: the method is divided into an automatic mode and a manual mode, wherein the automatic mode and the manual mode are selected from one to the other;

manual mode:

firstly, when dust particles are large, a pressure sensing button is pressed by fingers, a pressure sensor in the pressure sensing button can sense pressure change, the pressure sensor can acquire a pressure analog signal and transmit the pressure analog signal to an A/D converter to be converted into a digital signal;

secondly, the recognizer transmits the digital signal converted by the A/D converter to the pressure control panel; receiving the digital signal with a pressure control panel; and (3) analyzing and processing the digital signal by using a pressure control board: analyzing the magnitude of a pressure signal captured by a pressure sensor, and judging whether the generated pressure value reaches a value which can enable a rolling rod in a watchband adjuster to start rotating or not; (the judgment of the magnitude of the pressure signal value can be adjusted according to actual needs, which belongs to the prior art, a user sets a standard value of pressure when wearing the watch, pressure exceeding the standard value is identified as releasing the rolling watchband, and pressure lower than the standard value is identified as recovering the rolling watchband.

When the pressure reaches the value that makes the rolling rod start to rotate, the pressure control board transmits the operation order analyzed by the pressure control board to the valve control board in the watchband adjuster, the valve control board drives the valve to lift through the action of the motor, at the moment, the arm is lifted, the automatic top swings, and then drives the spring in the spring box to be wound or loosened, (the principle of the automatic top belongs to the prior art, the axial directions of the automatic top, the automatic plate and the spring box can be arranged to be in the same direction with the rolling rod, fig. 2 is only a schematic diagram, the principle that the automatic top controls the spring box to be wound and loosened belongs to the prior art) so as to make the rolling rod rotate, so that the rolling watchband wound on the rolling rod is released, then the arm is lifted, (the diameter surrounded by the watchband is larger than the wrist because the watchband is loosened), the watch is far away from the wrist and falls towards the elbow joint direction, and the arm circumference of the falling position can just support the released watchband (explanation: after The circle diameter grow that the watchband encloses, and the arm is lifted up this moment, and the arm at people's wrist position encloses the arm that is less than the forearm that is close to elbow joint, so when lifting up the arm, the watchband can fall direct card and stop when thick forearm department), stop pressing the pressure-sensitive button, the pressure control board transmits the valve control board in the watchband regulator with the analytic operating command that removes of pressure control board, the valve control board passes through the motor action, drive the valve and fall, block the roll rod, accomplish the operation, this moment, because the watchband card is in thick arm position, and the roll rod is blocked again, so even the arm is put down naturally, because the roll rod does not roll, the flexible cup restriction of watchband, the wrist-watch generally can not fall down, of course this moment block as long as satisfy the wrist-watch can not naturally the dynamics of blocking that falls. When the watch needs to be moved back to the original position, the pressure sensing button is pressed again, when the pressure reaches a value enabling the rolling rod to start rotating again, the valve control plate drives the valve to lift up through the action of the motor, at the moment, the watch band is pushed forwards (in the direction of the wrist) by hand force, relative movement is generated between the watch band and the arm, the arm is put down, the automatic gyroscope swings reversely, further the spring in the spring box is driven to loose or force, further the rolling rod rotates reversely, the watch band wound on the rolling rod gradually and slowly contracts, at the moment, only the arm is required to be controlled to be put down, the automatic gyroscope is prevented from rotating too fast, the watch band is prevented from contracting too fast, then when the watch band reaches the wrist, the pressure sensing button is released, the valve control plate drives the valve to fall down through the action of the motor, the rolling rod;

automatic mode:

when dust exists, the micro camera records an optical image generated by the lens, projects the optical image on the surface of an image sensor in the camera, converts the optical image into an electric signal, and transmits the electric signal to the A/D converter to become a digital image signal and transmits the digital image signal to the recognizer; the recognizer transmits the digital image signal converted by the A/D converter to the dust control panel; and (3) analyzing and processing the digital image signal by using a dust control board: the dust control board analyzes the number of dust particles captured by the image sensor, and judges whether the number of the dust particles reaches a value which enables a rolling rod in the watchband adjuster to start rotating (the value can be set according to needs, and the process of setting the value belongs to the prior art); transmitting an operation command analyzed by the dust control plate to a valve control plate in a watchband regulator, lifting the arm when the quantity of dust particles reaches a value that the rolling rod starts to rotate, judging the lifting action of the arm by a strain gauge, and transmitting a strain signal acquired by a strain sensor in the strain gauge to an A/D converter; the recognizer transmits the digital strain signal converted by the A/D converter to the strain control plate; and (3) analyzing and processing the digital image signal by using a strain control plate: analyzing the arm action collected by the strain sensor, and judging whether the arm is lifted or put down; if the arm is raised, the information is transmitted to a valve control board in the watchband adjuster, at the moment, the valve control board 20 is driven to lift up through the action of a motor under the combined action of the dust information of the dust control board and the information raised by the arm, at the moment, the automatic gyroscope swings due to the lifting action of the arm, so that a clockwork spring in a clockwork spring box is driven to be energized or loosened, a rolling rod is further driven to rotate, the rolling watchband wound on the rolling rod is released, then the arm is raised, the watch band is far away from the wrist and falls towards the elbow joint direction (the diameter enclosed by the watch band is larger than that of the wrist because the watch band is loosened), and the released watchband can be just supported by the arm enclosure at the falling position; at the moment, the dust particles detected by the miniature camera are reduced (because the arm is lifted), the number of the dust particles is lower than the rotating value of the rolling rod, the operation command analyzed by the dust control plate is transmitted to the valve control plate in the watchband regulator, and the valve control plate controls the valve to fall down to clamp the rolling rod to finish the operation;

when the watch needs to be moved back to the original position, the pressure sensing button is pressed, when pressure reaches a value enabling the rolling rod to start rotating, the valve control plate moves through the motor to drive the valve to lift up, at the moment, the watch band is pushed forwards (in the direction of the wrist) by hand force, relative movement is enabled to occur between the watch band and the arm, meanwhile, the arm is put down, the automatic gyroscope swings reversely, further the spring in the spring box is driven to loose or force, further the rolling rod rotates reversely, the watch band wound on the rolling rod gradually contracts in a rolling mode, then when the wrist is reached, the pressure sensing button is loosened, the valve control plate moves through the motor to drive the valve to fall down, the rolling rod is clamped, and operation is completed.

When removing the operation of returning the place with the wrist-watch, in order to prevent that the watchband shrink too fast to tightening excessively of arm, when pressure-sensitive inductor sensed skin borne pressure and is 0.2N, fallen through valve control panel control valve, blocked the roll rod, stopped retrieving the roll watchband.

The advantages and effects are as follows:

a movable watchband capable of sensing dust and a method thereof are provided, the method comprises the following steps:

(1) the micro camera records an optical image generated by the lens, projects the optical image on the surface of an image sensor in the camera, converts the optical image into an electric signal and transmits the electric signal to the A/D converter.

(2) The user presses a pressure sensing button on the wristband, and the pressure sensor collects the pressure analog signal and transmits the pressure analog signal to the A/D converter.

(3) The strain gauge judges the action of the arm, and the strain sensor transmits the acquired strain signal to the A/D converter.

(3) The A/D converter, the recognizer and the control board transmit the converted signal to the watchband adjuster, so that the rolling rod in the watchband adjuster starts to rotate.

(4) The kinetic energy generated by the automatic gyroscope drives the clockwork spring to rotate, and the clockwork spring drives the rolling rod to roll.

(5) The processing chip in the watchband regulator transmits an electric signal to the motor, the motor transmits a converted mechanical signal to the valve control panel, the valve control panel controls the valve to lift, and after the valve is lifted, the rolling rod rolls to release or recover the rolling watchband.

In summary, the invention provides a movable watchband capable of sensing dust, which has the following advantages: under normal conditions, the watchband can be adjusted manually normally. When the hands are in a busy state, the watchband can automatically stretch and retract when dust particles are sensed. When the dust particle increases and the person of wearing lifts up the arm, roll the watchband and be released, the ring grow that the watchband encloses, wrist-watch is along the radial downstream of the arm that lifts up to far away from the wrist, and then reach the purpose of keeping away from the dust source, prevent that the wrist-watch from advancing the ash. When the dust particles are reduced and the wearer puts down his arm, the rolling strap is recovered and the watch moves radially, gradually returning to the original position. The wristband may also be manually extended and retracted when a user presses a pressure sensitive button on the wristband. And because the main body of the watch is the watchband, the watch can be installed on any watch, and the portability is strong.

Drawings

FIG. 1 is a schematic view of the exterior structure of the watchband of the present invention;

FIG. 2 is a schematic view of the internal structure of the band adjuster of the present invention;

FIG. 3 is a schematic diagram of a hardware implementation of the watchband of the present invention;

FIG. 4 is a schematic view of a band in zoom;

fig. 5 is a schematic diagram of the valve and the rolling rod.

Detailed Description

For a better understanding, the invention is described in detail below with reference to the accompanying drawings:

the external structure of the present invention is shown in fig. 1.

Can respond to portable watchband of dust, including watchband body 111, its characterized in that: the watch band body is provided with a miniature camera 1, a pressure sensing button 2, a strain gauge 3, an A/D converter 4, an identifier 5, a dust control plate 6, a pressure control plate 7, a strain control plate 8, a battery plate 9 and a watch band adjuster 10; the strain gauge 3, the A/D converter 4, the recognizer 5, the dust control board 6, the pressure control board 7, the strain control board 8 and the battery board 9 are arranged on the inner side of the watchband body, and the miniature camera 1 and the pressure sensing button 2 are arranged on two sides of the watchband body; the band regulator 10 is provided outside the band body 111;

miniature camera 1, forced induction button 2 and foil gage 3 all link to each other with AD converter 4, and recognizer 5 links to each other with AD converter 4, and dust control board 6, pressure control board 7 and strain control board 8 all link to each other with recognizer 5, and dust control board 6, pressure control board 7 and strain control board 8 all link to each other with watchband regulator 10.

The miniature camera 1 is established at the side of the watchband body that is close to the dial plate (watchband body is inboard and is the one side that faces the reader in figure 1, the watchband body outside is exactly the back of figure 1), pressure-sensitive button 2 is established at the watchband body's that is close to the dial plate another side department, foil gage 3 is established between miniature camera 1 and pressure-sensitive button 2, AD converter 4 is established in the below of foil gage 3 (the below is exactly the direction that begins to extend to watchband body length direction by the dial plate is the below), recognizer 5 is established in the below of AD converter 4, strain gauge plate 8 is established in the below of recognizer 5, the left side at strain gauge plate is established to the dust control board, pressure control plate establishes the right side at strain gauge plate, the panel also locates the watchband body is inboard, the watchband regulator is established in strain gauge plate's below.

The watchband regulator comprises an automatic gyroscope 11, an automatic disc 12, a gear 13, a spring box 14, a spring 15, a rolling rod 16, a rolling watchband 17, a valve 18, a motor 19 and a valve control board 20, wherein the valve control board 20 is connected with a dust control board 6, a pressure control board 7 and a strain control board 8, the valve control board 20 is connected with the motor 19, the motor 19 is connected with the valve 18, and the valve control board 20 is a structure which controls the motor 19 to further control the valve 18 to act so as to limit the rotation of the rolling rod 16; the winding of roll watchband 17 is on roll pole 16, and gear 13 meshing automatic dish 12 in the automatic top 11 bottom, automatic dish 12 connect the barrel (automatic dish meshing a fluted disc, fluted disc connect a pivot, and the pivot stretches into in the barrel, stretches into the partial winding clockwork spring in the barrel), and the winding is around the clockwork spring in the barrel, and the other end of clockwork spring stretches out and twines on roll pole 16 from the barrel, through the power-up and the power-down control roll pole of clockwork spring positive and negative rotation. Fig. 2 is an internal structure view of the band regulator.

The band also includes a pressure sensor 21, and the pressure sensor 21 is connected to the valve control board 20.

The valve 18 is configured to restrict the rotation of the roll bar 16 when contacting the roll bar 16 and to release the restriction of the roll bar 16 when being separated from the roll bar 16.

One end of the rolling rod 16 is provided with a limiting gear 16-1, the valve 18 is of a swing rod structure, and when the valve 18 swings to a position between two teeth of the limiting gear 16-1, the rotation of the rolling rod 16 is limited.

manual mode:

When the pressure reaches the value that makes the rolling rod start to rotate, the pressure control board transmits the operation order analyzed by the pressure control board to the valve control board 20 in the watchband adjuster, the valve control board 20 is operated by the motor to drive the valve 18 to lift, at this time, the arm is lifted, the automatic top 11 swings to drive the spring in the spring box 14 to be wound or loosened, and then the rolling rod 16 rotates to release the rolling watchband 17 wound on the rolling rod 16, and then the arm is lifted, (because the watchband is loosened, the diameter enclosed by the watchband is larger than the wrist), the watch is far away from the wrist and falls towards the elbow joint direction, the arm enclosure at the falling position just can support the released watchband (explaining that after the watchband is released, the diameter of the circle enclosed by the watchband is increased, the arm is lifted at this time, and the arm enclosure at the wrist position of a person is smaller than that of the forearm close to the elbow joint, so when lifting up the arm, the watchband can fall direct card and stop when thick forearm department), stop pressing the forced induction button, the operating command that the pressure control panel was relieved with the analytic pressure of pressure control panel transmits the valve control panel 20 in the watchband regulator, valve control panel 20 passes through the motor action, drive valve 18 and fall, block roll rod 16, accomplish the operation, this moment, because the watchband card is in thick arm position, and roll rod 16 is blocked again, so even the arm is put down naturally, the wrist-watch generally can not fall, block this moment of course as long as satisfy the wrist-watch can not fall naturally block the dynamics can. When the watch needs to be moved back to the original position, the pressure sensing button is pressed again, when the pressure reaches a value enabling the rolling rod to start rotating again, the valve control board 20 is operated through the motor to drive the valve 18 to be lifted, at the moment, the hand pushes the watchband forwards (in the direction of the wrist) with force, so that the watchband and the arm move relatively, the arm is put down, the automatic gyroscope 11 swings reversely, further the clockwork spring in the clockwork spring box 14 is driven to loose or force upwards, further the rolling rod 16 rotates reversely, the rolling watchband 17 wound on the rolling rod 16 is gradually contracted, and when the wrist is reached, the pressure sensing button is released, the valve control board 20 is operated through the motor to drive the valve 18 to fall, the rolling rod 16 is clamped, and the operation is completed;

automatic mode:

when dust exists, the micro camera 1 records an optical image generated by the lens, projects the optical image on the surface of an image sensor in the camera, converts the optical image into an electric signal, and transmits the electric signal to the A/D converter to become a digital image signal and transmits the digital image signal to the recognizer; the recognizer transmits the digital image signal converted by the A/D converter to the dust control panel; and (3) analyzing and processing the digital image signal by using a dust control board: the dust control board analyzes the number of dust particles captured by the image sensor, and judges whether the number of the dust particles reaches a value which enables a rolling rod in the watchband adjuster to start rotating (the value can be set according to needs, and the process of setting the value belongs to the prior art); transmitting an operation command analyzed by the dust control plate to a valve control plate in a watchband regulator, lifting the arm when the quantity of dust particles reaches a value that the rolling rod starts to rotate, judging the lifting action of the arm by a strain gauge, and transmitting a strain signal acquired by a strain sensor in the strain gauge to an A/D converter; the recognizer transmits the digital strain signal converted by the A/D converter to the strain control plate; and (3) analyzing and processing the digital image signal by using a strain control plate: analyzing the arm action collected by the strain sensor, and judging whether the arm is lifted or put down; if the arm is raised, the information is transmitted to a valve control board in the watchband adjuster, at the moment, the valve control board 20 is actuated by a motor under the combined action of the dust information of the dust control board and the information raised by the arm to drive a valve 18 to be raised, at the moment, the automatic top 11 swings due to the raising action of the arm to further drive a clockwork spring in a spring box 14 to be energized or loosened, so that a rolling rod 16 rotates, a rolling watchband 17 wound on the rolling rod 16 is released, then the arm is raised, the diameter enclosed by the watchband is larger than that of the wrist because the watchband is loosened, the watch is far away from the wrist and falls towards the elbow joint direction, and the released watchband can be just supported by the arm enclosure at the falling position; at this time, the dust particles detected by the miniature camera 1 are reduced (because the arm is lifted), the number of the dust particles is lower than the rotating value of the rolling rod, the operation command analyzed by the dust control plate is transmitted to the valve control plate in the watchband adjuster, the valve control plate controls the valve 18 to fall down, the rolling rod 16 is clamped, and the operation is finished;

when the watch needs to be moved back to the original position, the pressure sensing button is pressed, when the pressure reaches a value that the rolling rod starts to rotate, the valve control board 20 is operated by the motor to drive the valve 18 to lift up, at the moment, the hand pushes the watchband forwards (in the direction of the wrist) with force, so that the watchband and the arm move relatively (at the moment, because the watchband is just hooked on the arm, the force is not very large, and the arm is elastic, the watchband is pushed without extra effort, which can be realized in daily life sometimes, for example, in order to facilitate some times, the bracelet, bracelet and other ornaments move upwards and are just clamped at thick parts of the arm, when the bracelet and bracelet need to be moved down, the bracelet and the watch can be applied to the application by pushing the inner wall of the watchband with force, and only the inner wall of the watchband needs to be made of a material with not very large friction force, meanwhile, when the arm is put down, the automatic top 11 swings reversely, so that the clockwork spring in the clockwork spring box 14 is driven to loosen or increase the force, the rolling rod 16 rotates reversely, the rolling watchband 17 wound on the rolling rod 16 gradually contracts, and then when the wrist is reached, the pressure sensing button is loosened, the valve control board 20 drives the valve 18 to fall down through the action of the motor, the rolling rod 16 is clamped, and the operation is completed.

When the watch is moved back to the original position, in order to prevent the watch band from shrinking too fast and tightening the arm too much, when the pressure sensor 21 senses that the pressure born by the skin is 0.2N, the valve 18 is controlled to fall through the valve control panel, the rolling rod 16 is blocked, and the watch band is stopped to be recovered.

The method for the movable watchband capable of sensing dust can be applied to the following scenes:

scene 1 when the user is in dough making, the flour easily creeps into the dial, and at this moment, the wrist-watch can be kept away from the dough through automatic adjustment watchband.

Scene 2 is when mr writes the blackboard on the blackboard, and chalk dust flies in disorder easily, and the wrist-watch can keep away from chalk dust through the automatic adjustment watchband.

In conclusion, the watch can automatically stretch and retract after dust is sensed, a wearer lifts an arm, rolls the watch band to be released, and the watch automatically moves radially, so that the watch is far away from a dust source, and dust is prevented from entering the watch.

After the use, the finger continuously presses the pressure-sensitive button, drags the watchband to remove to being close to the wrist direction, and when the finger lifted up, pressure sensor can feel pressure variation, and pressure sensor can gather pressure analog signal and transmit pressure analog signal for the AD converter, and the recognizer transmits the digital signal of AD converter conversion to pressure control board. The operation command analyzed by the pressure control plate is transmitted to a processing chip on a valve control plate in the watchband adjuster, the processing chip on the valve control plate transmits an electric signal to a motor, the motor rotates and drives a control valve to lift, and after the valve is lifted, a rolling rod starts to roll to gradually recover the rolling watchband. And finally, when the watchband returns to the wrist or the pressure sensor senses that the pressure born by the skin is 0.2N, the watchband is stopped to be recovered and rolled.

Claims

1. Can respond to portable watchband of dust, including watchband body (111), its characterized in that: the watch band body is provided with a miniature camera (1), a pressure sensing button (2), a strain gauge (3), an A/D converter (4), an identifier (5), a dust control plate (6), a pressure control plate (7), a strain control plate (8), a battery plate (9) and a watch band adjuster (10); the strain gauge (3), the A/D converter (4), the recognizer (5), the dust control plate (6), the pressure control plate (7), the strain control plate (8) and the battery plate (9) are arranged on the inner side of the watchband body, and the miniature camera (1) and the pressure sensing button (2) are arranged on two sides of the watchband body; the watchband adjuster (10) is arranged on the outer side of the watchband body (111);

the miniature camera (1), the pressure sensing button (2) and the strain gauge (3) are all connected with an A/D converter (4), the recognizer (5) is connected with the A/D converter (4), the dust control plate (6), the pressure control plate (7) and the strain control plate (8) are all connected with the recognizer (5), and the dust control plate (6), the pressure control plate (7) and the strain control plate (8) are all connected with the watchband adjuster (10);

the watchband adjuster comprises an automatic gyroscope (11), an automatic disc (12), a gear (13), a spring box (14), a spring (15), a rolling rod (16), a rolling watchband (17), a valve (18), a motor (19) and a valve control panel (20), wherein the valve control panel (20) is connected with a dust control panel (6), a pressure control panel (7) and a strain control panel (8), meanwhile, the valve control panel (20) is connected with the motor (19), the motor (19) is connected with the valve (18), and the valve control panel (20) is a structure for controlling the motor (19) to further control the valve (18) to act so as to limit the rotation of the rolling rod (16);

the rolling watch band (17) is wound on the rolling rod (16), the gear (13) at the bottom of the automatic top (11) is meshed with the automatic disc (12), the automatic disc (12) is connected with the spring box, one end of a spring is wound in the spring box, the other end of the spring extends out of the spring box and is wound on the rolling rod (16), and the rolling rod is controlled to rotate forwards and backwards through the winding force and the loosening force of the spring;

the movable watchband also comprises a pressure sensor (21), and the pressure sensor (21) is connected with the valve control panel (20);

the valve (18) is a structure which limits the rotation of the rolling rod (16) when contacting the rolling rod (16) and releases the limitation on the rolling rod (16) after leaving the rolling rod (16);

one end of the rolling rod (16) is provided with a limiting gear (16-1), the valve (18) is of a swing rod structure, and when the valve (18) swings to a position between two teeth of the limiting gear (16-1), the rotation of the rolling rod (16) is limited.

2. The removable dust-sensible watchband as defined in claim 1, wherein: the side at the watchband body is established in miniature camera head (1), pressure-sensitive button (2) are established in another side department of the watchband body that is close to the dial plate, foil gage (3) are established between miniature camera head (1) and pressure-sensitive button (2), the below at foil gage (3) is established in AD converter (4), recognizer (5) are established in the below of AD converter (4), the below at recognizer (5) is established in strain control board (8), establish the left side at strain control board (8) in dust control board (6), the right side at strain control board (8) is established in pressure control board (7), the watchband body is inboard also located to the panel, the watchband regulator is established in the outside of the watchband body of the below of strain control board (8).

3. The method of controlling a movable watch strap capable of sensing dust according to claim 1, wherein: the method comprises an automatic mode and a manual mode, wherein the automatic mode and the manual mode are selected from one to the other;

manual mode:

firstly, when dust particles are large, a pressure sensing button is pressed by fingers, a pressure sensor in the pressure sensing button can sense pressure change, the pressure sensor can acquire a pressure analog signal and transmit the pressure analog signal to an A/D converter to be converted into a digital signal; the recognizer transmits the digital signal converted by the A/D converter to the pressure control plate; receiving the digital signal with a pressure control panel; and (3) analyzing and processing the digital signal by using a pressure control board: analyzing the magnitude of a pressure signal captured by a pressure sensor, and judging whether the generated pressure value reaches a value which can enable a rolling rod in a watchband adjuster to start rotating or not; when the pressure reaches a value which enables the rolling rod to start rotating, the pressure control board transmits an operation command analyzed by the pressure control board to a valve control board (20) in the watchband adjuster, the valve control board (20) drives a valve (18) to be lifted through the action of a motor, at the moment, an arm is lifted, an automatic gyroscope (11) swings, further, a clockwork spring in a clockwork box (14) is driven to be energized or loosened, further, the rolling rod (16) rotates, so that a rolling watchband (17) wound on the rolling rod (16) is released, at the moment, the arm keeps a lifted posture, the watch is enabled to fall away from a wrist and towards an elbow joint direction until the wrist circumference just can support the arm of the released watchband, the pressure sensing button is stopped being pressed, and the operation command of pressure removal analyzed by the pressure control board is transmitted to the valve control board (20) in the watchband adjuster by the pressure control board, the valve control board (20) is operated by the motor to drive the valve (18) to fall down and clamp the rolling rod (16) to finish the operation, when the watch needs to be moved back to the original position, the pressure sensing button is pressed again, when the pressure reaches a value which enables the rolling rod to start rotating again, the valve control board (20) is operated by the motor to drive the valve (18) to be lifted up, at the moment, the watch band is pushed forwards by hand force, the watch band and the arm move relatively, the arm is put down, the automatic gyroscope (11) swings reversely, further the clockwork spring in the clockwork box (14) is driven to be loosened or stressed, further the rolling rod (16) rotates reversely, the rolling watch band (17) wound on the rolling rod (16) gradually and slowly shrinks, then when the wrist position is reached, the pressure sensing button is loosened, the valve control board (20) is operated by the motor to drive the valve (18) to fall down, clamping the rolling rod (16) to finish the operation;

automatic mode:

when dust exists, the micro camera (1) records an optical image generated by the lens, projects the optical image on the surface of an image sensor in the camera, converts the optical image into an electric signal, and transmits the electric signal to the A/D converter to become a digital image signal and transmits the digital image signal to the recognizer; the recognizer transmits the digital image signal converted by the A/D converter to the dust control panel; and (3) analyzing and processing the digital image signal by using a dust control board: the dust control board analyzes the number of dust particles captured by the image sensor and judges whether the number of the dust particles reaches a value which enables a rolling rod in the watchband adjuster to start rotating or not; transmitting an operation command analyzed by the dust control plate to a valve control plate in a watchband regulator, lifting the arm when the quantity of dust particles reaches a value that the rolling rod starts to rotate, judging the lifting action of the arm by a strain gauge, and transmitting a strain signal acquired by a strain sensor in the strain gauge to an A/D converter; the recognizer transmits the digital strain signal converted by the A/D converter to the strain control plate; and (3) analyzing and processing the digital image signal by using a strain control plate: analyzing the arm action collected by the strain sensor, and judging whether the arm is lifted or put down; if the arm is raised, the information is transmitted to a valve control board in the watchband adjuster, at the moment, the valve control board (20) acts through a motor under the combined action of the dust information of the dust control board and the information raised by the arm to drive a valve (18) to be raised, at the moment, the automatic gyroscope (11) swings due to the raising action of the arm to further drive a clockwork spring in a spring box (14) to be energized or loosened, so that a rolling rod (16) rotates, a rolling watchband (17) wound on the rolling rod (16) is released, then the watch of the watch-releasing watchband falls towards the elbow joint direction due to the raising of the arm until the arm circumference at the falling position just supports the released watchband; at the moment, the watch moves, dust particles detected by the miniature camera (1) are reduced, the number of the dust particles is lower than the rotating value of the rolling rod, an operation command analyzed by the dust control board is transmitted to a valve control board in the watchband regulator, and the valve control board controls a valve (18) to fall down to clamp the rolling rod (16) to finish the operation;

when the watch needs to be moved to the original position, the pressure sensing button is pressed, when pressure reaches a value enabling the rolling rod to start rotating, the valve control plate (20) acts through the motor to drive the valve (18) to be lifted, at the moment, the watch band is pushed forwards with hand strength, relative movement is enabled to occur between the watch band and the arm, meanwhile, the arm is put down, the automatic gyroscope (11) reversely swings, further the spring in the spring box (14) is driven to loosen or force up, further the rolling rod (16) reversely rotates, the rolling watch band (17) wound on the rolling rod (16) gradually and slowly contracts, then when the wrist position is reached, the pressure sensing button is loosened, the valve control plate (20) acts through the motor to drive the valve (18) to fall and be clamped, the rolling rod (16) is pressed, and operation is completed.

4. The method of controlling a removable dust-sensitive wristband of claim 3, wherein: when the watch is moved back to the original position, when the pressure sensor (21) senses that the pressure born by the skin is 0.2N, the valve (18) is controlled by the valve control panel to fall down, the rolling rod (16) is clamped, and the rolling of the watch band is stopped.