WO2020173085A1

WO2020173085A1 - Regulating system and method for pointer of smart watch

Info

Publication number: WO2020173085A1
Application number: PCT/CN2019/107206
Authority: WO
Inventors: 伍世杰
Original assignee: 广东乐芯智能科技有限公司
Priority date: 2019-02-27
Filing date: 2019-09-23
Publication date: 2020-09-03
Also published as: CN109782570A

Abstract

Disclosed are a regulating system and method for a pointer of a smart watch. The regulating system comprises a watch crown, an optical tracking surface sensor and a processor. The watch crown comprises a watch crown head (11) and a shaft lever (12), the watch crown head (11) is used for being pressed by a user so as to enable the watch crown to move along Y direction; the shaft lever (12) is fixedly connected to the watch crown head (11) such that the shaft lever (12) rotates along the central shaft when the watch crown head (11) rotates. The optical tracking surface sensor is disposed at a distance away from the shaft lever (12), and is used for tracking the movement of the shaft lever (12). The processor can calculate the movement detected by the optical tracking surface sensor.

Description

System and method for adjusting pointer of smart watch

Technical field

The invention relates to a smart watch, in particular to a method and system for adjusting the pointer of the smart watch.

Background technique

At present, when adjusting the pointer of a watch with physical pointers, a crown with a groove is usually used. Use the thumb and index finger to pull the crown down to different positions (usually pull out the crown), and then turn it clockwise or counterclockwise. The crown drives the transmission mechanism connected with the crown at this position, so that the movement is transmitted to the gear box, and then drives the pointer to rotate clockwise or counterclockwise.

technical problem

In the era of smart watches, there are two directions. One is full intelligence, which tends to be electronic watches, and even uses electronic pointers to simulate physical pointers; the other is semi-intelligence, that is, keeping physical pointers and adding intelligent modules. Major watchmakers have choices in both directions. In terms of user experience, heavy watches that include physical pointers look more high-end and have a better experience. In this way, there are problems in design and manufacturing: the volume of the watch is already very small, how to design a smart module including various sensors into the watch. In this way, it seems inevitable to streamline the pointer transmission unit of the watch. At present, smart watch manufacturers including physical pointers (only LG and Guangdong Leyuan Digital Technology Co., Ltd.) have encountered such problems. The streamlining direction mostly considers The gearbox has never been improved in design except for the gearbox.

Technical solutions

In view of this, the present invention provides a method and system for adjusting the pointer of a smart watch. Through the system and method, the command transmitted to the gear box from the crown that sends the adjustment signal is converted from a physical command to an electronic command, eliminating the need for a watch The transmission part between the crown and the gearbox greatly saves space and achieves the same effect as the adjustment of the physical pointer.

The specific technical solutions of the present invention are as follows:

A smart watch pointer adjustment system, the system includes:

A crown, the crown includes a crown head and a shaft;

The crown head is used by the user to press to move the crown in the Y direction;

The shaft is fixedly connected to the crown head, and when the crown head rotates, the shaft rotates along its central axis;

An optical tracking surface sensor (Rotational Tracking on Shaft or Optical Tracking on Shaft), where the optical tracking surface sensor is arranged at a distance offset from the shaft for tracking the movement of the shaft;

A processor, which can calculate the movement detected by the optical tracking surface sensor;

When the optical tracking surface sensor detects that the shaft has a Y-direction movement, the processor switches the pointer to be adjusted;

When the optical tracking surface sensor detects the rotation of the shaft in the Y direction, the processor calculates the rotation angle of the shaft in a unit time;

The processor calculates the rotation speed and angle of the pointer to be adjusted according to the rotation angle of the shaft in a unit time.

Further, the optical tracking surface sensor includes a laser transmitter (LASER) and an optical sensor (Optical Sensor), the light emitted by the laser transmitter is reflected by the shaft and received by the optical sensor.

A method for adjusting the pointer of a smart watch, the method comprising:

Judge whether there is displacement in the Y direction of the crown to determine whether the hands need to be switched;

Calculate the rotation speed of the crown around the Y direction;

Determine the rotation speed of the watch hands.

Further, the method further includes reading the default pointer, and when the crown has no displacement in the Y direction, determining that the default pointer is an adjustment pointer; when the crown has a displacement in the Y direction, following the default pointer Switch the pointer in the switching sequence, and use the switched pointer as the adjustment pointer. The default hand sequence can be preset, such as second hand first, then minute hand, then hour hand; or first minute hand, then hour hand; or first hour hand, then minute hand. The default pointer sequence can have only two pointers or three pointers, and the sequence can be preset according to user experience.

Further, in unit time, calculate the rotation angle A of the crown around the Y direction.

Further, the smart watch includes an optical tracking surface sensor and a processor. The optical tracking surface sensor detects the rotation angle A of the crown around the Y axis in a unit time, and stores it in OTS (ie, optical tracking). Surface sensor) register.

Further, the processor reads the data in the OTS register and calculates the rotation speed A/K of the adjustment pointer, where K is the sensitivity coefficient.

Further, the K=[10-15], preferably 12.

Further, the method further includes a sudden stop step:

The processor includes a timer, and when determining the rotation speed of the watch pointer and controlling the rotation of the adjustment pointer of the watch, the processor detects whether the timer is started;

If the timer is not started, start the timer; if the timer has already started, refresh the time of the timer;

When the timer time reaches the time threshold T, if the adjustment pointer is still rotating, the rotation of the adjustment pointer is stopped.

Preferably, the time threshold T=[250-350]ms, preferably 300ms.

Beneficial effect

Through the above technical solutions, a multi-function crown and indirect free pointer adjustment can be realized. The device completely gets rid of the limitations of traditional crowns, making the crown function no longer single, enabling more user interaction, which is beneficial to traditional The transformation of equipment to smart equipment.

Description of the drawings

Figure 1 is a diagram of the position of the crown of the present invention in a watch.

Figure 2 shows the relative positions of the crown, optical tracking surface sensor and movement.

Figure 3 is a schematic diagram of viewing the crown from two different angles.

Embodiments of the invention

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, "multiple" Generally, at least two are included, but the inclusion of at least one is not excluded.

It should be understood that the term "and/or" used in this article is only an association relationship describing associated objects, which means that there can be three relationships. For example, A and/or B can mean that there is A alone, and both A and B, there are three cases of B alone. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

It should be understood that although the terms first, second, third, etc. may be used to describe... in the embodiments of the present invention, these... should not be limited to these terms. These terms are only used to distinguish... For example, without departing from the scope of the embodiments of the present invention, the first...may also be called the second..., and similarly, the second...may also be called the first...

Depending on the context, the words "if" and "if" as used herein can be interpreted as "when" or "when" or "in response to determination" or "in response to detection". Similarly, depending on the context, the phrase "if determined" or "if detected (statement or event)" can be interpreted as "when determined" or "in response to determination" or "when detected (statement or event) )" or "response to detection (statement or event)".

It should also be noted that the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a commodity or system that includes a series of elements not only includes those elements, but also includes those elements that are not explicitly listed. Other elements of, or also include elements inherent to this commodity or system. If there are no more restrictions, the element defined by the sentence "includes a..." does not exclude the existence of other identical elements in the commodity or system that includes the element.

In addition, the sequence of steps in the following method embodiments is only an example, and is not strictly limited.

Example one

As shown in Figure 1, a smart watch is the same as a traditional watch, including a crown. The difference is that there is no transmission mechanism between the crown and the movement.

The crown includes a crown head 11 and a shaft 12, and the shaft 12 is fixedly connected to the crown head 11. When the user turns the crown head by hand, the shaft 12 rotates with the crown head 11, and the rotation axis of the shaft 12 is the central axis of the shaft 12 itself.

There is a spring (not shown in Figure 1) between the crown and the bezel. When the user presses down the crown 1 and releases it, the crown can be reset under the action of the spring. In this way, the shaft 12 has a positive and negative displacement in the axial direction (Y direction), and the sum of the displacements is 0. Therefore, the shaft is reset with the crown.

The system includes an optical tracking surface sensor (Rotational Tracking on Shaft or Optical Tracking on Shaft), and the optical tracking surface sensor is arranged at a distance offset from the shaft for tracking the movement of the shaft. In fact, optical tracking surface sensors are available on the market, but the structure may be different (for example, PixArt of Taiwan PixArt specializes in optical sensor tracking). Our company designs and submits to Taiwan Yuanxiang Technology Co., Ltd. Customized the optical tracking surface sensor with the following structure.

As shown in Figures 2 and 3, the optical tracking surface sensor includes a laser transmitter (LASER) 21 and an optical sensor (Optical Sensor) 22. The light emitted by the laser transmitter is reflected by the shaft and is reflected by the optical sensor. The sensor receives.

The shaft is required to have the following physical structural characteristics: smooth and can reflect light. The shaft 12 is above the laser transmitter 21 and when it moves in the Y direction, the shaft 12 is always above the laser transmitter 21. The length of the shaft 12 is such that when the shaft 12 moves in the Y direction, it always has a partial length above the optical sensor 22, so that the light emitted from the laser transmitter can be reflected by the shaft 12 after being reflected by the optical sensor 22. The sensor 22 receives.

The system also includes a processor, which can calculate the motion detected by the optical tracking surface sensor;

Example two

How to adjust the pointer of a smart watch.

When you need to adjust the position of the pointer, start the pointer adjustment program, and then you first need to select which pointer to adjust.

The default pointer can be set as the adjustment pointer in the default program, but often the default pointer is not the pointer that needs to be adjusted, or other pointers need to be adjusted after the default pointer is adjusted.

Traditional watches use only one pointer, such as the minute hand, to adjust the minute hand. After turning the minute hand one turn, the hour hand rotates a small angle, that is, the minute hand drives the hour hand.

However, in the intelligent age, this adjustment method is too slow.

In this application, the crown can be moved in the Y direction, and the optical tracking surface sensor is used to determine whether the pointer is moving in the Y direction to switch the pointer. If the crown does not move back and forth in the Y direction once, the user has not pressed the crown. At this time, adjust the default pointer (the default pointer is the adjustment pointer); if the crown moves back and forth in the Y direction, the pointer Switch from the default pointer to another pointer. The pointer of the table generally has two or three. The switching sequence can be customized by the user, or the default sequence can be set in the program. Since there are not many hands, the default order is generally used. The default hand sequence can be preset, such as second hand first, then minute hand, then hour hand; or first minute hand, then hour hand; or first hour hand, then minute hand. The default pointer sequence can have only two pointers or three pointers, and the sequence can be preset according to user experience.

Whether there is movement of the crown in the Y direction does not affect the rotation of the crown. The optical tracking surface sensor also detects whether the shaft of the crown rotates around the Y axis. If so, it is calculated that the crown rotates in the Y direction per unit time. The rotation angle A of, and store it in the OTS (Optical Tracking Surface Sensor) register.

The rotation of the crown cannot be directly mapped to the rotation angle of the pointer. For example, the crown can easily rotate one circle, but from a visual point of view, the rotation of the pointer can basically not be synchronized with the rotation of the crown. In combination with the rotation speed of the hour and minute hands of the mechanical pointer rotating the crown, this application obtains the sensitivity coefficient of rotation through a large number of experiments, and the sensitivity coefficient relates to adjusting the rotation speed of the pointer.

In unit time, the greater the rotation angle A, at this time, we require the adjustment pointer to rotate faster, and the smaller the rotation angle A, we require the adjustment pointer to rotate more slowly. They are directly proportional.

Therefore, we have calculated the rotation speed of the adjustment pointer Ω=A/K. The best K=[10~15], preferably 12.

Example three

In the process of adjusting the mechanical watch, we turn the crown many times, but the hands often stop turning soon after we stop turning the crown, and will not strictly follow the ratio of the rotation angle of the crown to the rotation angle of the pointer.

Therefore, in the adjustment process, we creatively set a sudden stop step, which has never been used or proposed in the adjustment of all watches.

The specific steps of sudden stop are:

Preferably, the time threshold T=[250-350]ms, preferably 300ms.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features thereof are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A smart watch pointer adjustment system, the system includes:

A crown, the crown includes a crown head and a shaft;

The crown head is used by the user to press to move the crown in the Y direction;

The shaft is fixedly connected to the crown head, and when the crown head rotates, the shaft rotates along its central axis;

An optical tracking surface sensor, the optical tracking surface sensor is arranged at a distance offset from the shaft for tracking the movement of the shaft;

A processor, which can calculate the movement detected by the optical tracking surface sensor;

When the optical tracking surface sensor detects that the shaft has a Y-direction movement, the processor switches the pointer to be adjusted;

When the optical tracking surface sensor detects the rotation of the shaft in the Y direction, the processor calculates the rotation angle of the shaft in a unit time;

The processor calculates the rotation speed and angle of the pointer to be adjusted according to the rotation angle of the shaft in a unit time.
The adjustment system according to claim 1, wherein the optical tracking surface sensor comprises a laser emitter (LASER) and an optical sensor (Optical Sensor), and the light emitted by the laser emitter is reflected by the shaft, Received by the optical sensor.
A method for adjusting the pointer of a smart watch, the method comprising:

Judge whether there is displacement in the Y direction of the crown to determine whether the hands need to be switched;

Calculate the rotation speed of the crown around the Y direction;

Determine the rotation speed of the watch hands.
The adjustment method according to claim 3, wherein the method further comprises reading the default pointer, and when the crown has no displacement in the Y direction, determining that the default pointer is an adjustment pointer; when the crown is at When there is displacement in the Y direction, the pointer switching is performed according to the default pointer switching sequence, and the switched pointer is used as the adjustment pointer.
The adjustment method according to claim 3, wherein the smart watch comprises an optical tracking surface sensor and a processor, and the optical tracking surface sensor detects the rotation angle A of the crown around the Y axis in a unit time. , And store it in the OTS (Optical Tracking Surface Sensor) register.
The adjustment method according to claim 5, wherein the processor reads the data in the OTS register and calculates the rotation speed A/K of the adjustment pointer, where K is a sensitivity coefficient.
The adjustment method according to claim 6, wherein the K=[10-15].
The adjustment method according to claim 3, wherein the method further comprises a sudden stop step:

The processor includes a timer, and when determining the rotation speed of the watch pointer and controlling the rotation of the adjustment pointer of the watch, the processor detects whether the timer is started;

If the timer is not started, start the timer; if the timer has already started, refresh the time of the timer;

When the timer time reaches the time threshold T, if the adjustment pointer is still rotating, the rotation of the adjustment pointer is stopped.
The adjustment method according to claim 8, wherein the time threshold T=[250-350]ms.
The adjustment method according to claim 8, characterized in that it is preferably 300 ms.