CN111025882B - Intelligent clock and self-calibration method and device thereof - Google Patents
Intelligent clock and self-calibration method and device thereof Download PDFInfo
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- CN111025882B CN111025882B CN201911358343.4A CN201911358343A CN111025882B CN 111025882 B CN111025882 B CN 111025882B CN 201911358343 A CN201911358343 A CN 201911358343A CN 111025882 B CN111025882 B CN 111025882B
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Abstract
The application discloses an intelligent clock and a self-calibration method and device thereof. The dial plate is provided with a calibration hole, the ultrasonic transceiver module is arranged below the calibration hole, and the movement track of the pointer and the calibration hole are provided with a coincidence part. When self-calibration is needed, the microprocessor controls the ultrasonic transceiver module to transmit and receive ultrasonic signals, tracks the current position of the pointer according to the reflected signals of the ultrasonic signals, determines the calibration position of the pointer according to the acquired calibration time, and controls the pointer driving circuit to work so as to drive the pointer to rotate to the calibration position. By adopting the technical scheme, manual calibration is not needed, convenience of a user is improved, the position of the pointer is tracked through the ultrasonic receiving and sending module, no sound exists, unnecessary light interference does not exist, user experience is improved, and finally, a calibration button does not need to be arranged on the shell, and the risk of mistaken touch is effectively prevented.
Description
Technical Field
The application relates to the technical field of electronic products, in particular to an intelligent clock and a self-calibration method and device thereof.
Background
In current life, intelligent products are widely used, for example, intelligent clocks and watches, which can realize the functions of mechanical clocks and watches, and can be connected with terminal equipment to realize more functions. The intelligent clock mentioned in the application can be a watch worn on the hand, and can also be a wall clock or a table pendulum clock.
In the prior art, in order to calibrate the time of the smart clock, a user is usually required to manually adjust an exposed knob on the smart clock so as to drive a pointer to rotate to a calibration position.
Obviously, the manual adjustment mode needs manual intervention on one hand, and on the other hand, needs to set up the calibration knob on the shell, easily causes the risk of mistake touching, and is unfavorable for product integrated design.
Disclosure of Invention
The utility model provides an intelligent clock, can realize self calibration, do not need artifical the participation, the calibration process is comparatively convenient to need not set up the calibration knob on the shell, therefore can prevent the risk of mistake touching. In addition, the invention also provides a self-calibration method and a self-calibration device applied to the intelligent clock.
In order to solve the technical problems, the application provides an intelligent clock, which comprises a dial plate, a pointer driving circuit, a microprocessor and an ultrasonic transceiver module, wherein the dial plate is provided with a calibration hole, the ultrasonic transceiver module is arranged below the calibration hole, and a motion track of the pointer and the calibration hole are provided with a superposition part;
the microprocessor is connected with the ultrasonic receiving and transmitting module and used for controlling the ultrasonic receiving and transmitting module to transmit and receive ultrasonic signals, tracking the current position of the pointer according to the reflected signals of the ultrasonic signals, determining the calibration position of the pointer according to the acquired calibration time, and controlling the pointer driving circuit to work so as to drive the pointer to rotate to the calibration position.
Preferably, each of the hands is an independently driven hand.
In order to solve the technical problem, the present application further provides a self-calibration method applied to an intelligent clock, where the intelligent clock includes a dial, a hand driving circuit, a microprocessor, and an ultrasonic transceiver module connected to the microprocessor, the dial is provided with a calibration hole, the ultrasonic transceiver module is disposed below the calibration hole, and a movement track of the hand and the calibration hole have a coincidence portion, the method includes:
controlling the ultrasonic transceiver module to transmit and receive ultrasonic signals;
tracking the current position of the pointer according to the reflected signal of the ultrasonic signal;
determining the calibration position of the pointer according to the acquired calibration time;
and controlling the meter pointer driving circuit to work so as to drive the meter pointer to rotate to the calibration position.
Preferably, each of the hands is an independently driven hand.
Preferably, the hands include an hour hand and a minute hand, the calibration hole is at least one, and the tracking the current position of the hands according to the reflected signal of the ultrasonic signal includes:
judging whether a first pointer is positioned at a position corresponding to the calibration hole or not according to the transmitting and receiving time of the ultrasonic signal;
if not, controlling the meter pointer driving circuit to work to drive the first meter pointer to rotate by a step length, and returning to the step of judging whether the first meter pointer is positioned at the position corresponding to the calibration hole according to the transmitting and receiving time of the ultrasonic signal;
if yes, acquiring a preassigned step size;
controlling the pointer driving circuit to rotate the first pointer to a specified position according to the step amount to serve as the current position of the first pointer; wherein the designated position is a position corresponding to the calibration hole;
judging whether the second pointer is positioned at the position corresponding to the calibration hole or not according to the transmitting and receiving time of the ultrasonic signal;
if not, controlling the meter pointer driving circuit to work to drive the second meter pointer to rotate by a step length, and returning to the step of judging whether the second meter pointer is positioned at the position corresponding to the calibration hole according to the transmitting and receiving time of the ultrasonic signal;
if so, determining the current position of the second pointer as the position corresponding to the calibration hole;
the first pointer is the hour pointer or the minute pointer, and the corresponding second pointer is the minute pointer or the hour pointer.
Preferably, the controlling the pointer driving circuit to operate to drive the pointer to rotate to the calibration position includes:
calculating a first step length amount required by the current position of the hour hand to be rotated to the calibration position of the hour hand and a second step length amount required by the current position of the minute hand to be rotated to the calibration position of the minute hand;
and controlling the meter hand driving circuit to drive the hour hand and the minute hand to rotate according to the first step length and the second step length respectively.
Preferably, the method further comprises the following steps:
and when the condition of triggering self calibration is reached, starting the ultrasonic transceiver module.
Preferably, after tracking the current position of the pointer, the method further includes:
and closing the ultrasonic transceiver module.
Preferably, before the tracking the current position of the pointer according to the reflected signal of the ultrasonic signal, the method further includes:
judging whether each pointer in the pointer is not positioned at the position corresponding to the calibration hole according to the transmitting and receiving time of the ultrasonic signal;
if yes, tracking the current position of the pointer according to the reflected signal of the ultrasonic signal;
if not, determining a pointer to be adjusted according to the receiving time;
and controlling the meter pointer driving circuit to work so as to drive the pointer to be adjusted to move by a step length, and returning to the step of judging whether all pointers in the meter pointer are not positioned at the positions corresponding to the calibration holes according to the transmitting and receiving time of the ultrasonic signals.
In order to solve the technical problem, the present application further provides a self calibration device applied to an intelligent clock, where the intelligent clock includes a dial, a hand driving circuit, a microprocessor, and an ultrasonic transceiver module connected to the microprocessor, the dial has a calibration hole, the ultrasonic transceiver module is disposed below the calibration hole, a movement track of the hand and the calibration hole have a coincidence portion, and the device includes:
the first control module is used for controlling the ultrasonic transceiving module to transmit and receive ultrasonic signals;
the tracking module is used for tracking the current position of the pointer according to the reflected signal of the ultrasonic signal;
the determining module is used for determining the calibration position of the pointer according to the acquired calibration time;
and the second control module is used for controlling the meter hand driving circuit to work so as to drive the meter hand to rotate to the calibration position.
The intelligent clock comprises a dial, a clock hand driving circuit, a microprocessor and an ultrasonic receiving and transmitting module. The dial plate is provided with a calibration hole, the ultrasonic transceiver module is arranged below the calibration hole, and the movement track of the pointer and the calibration hole are provided with a coincidence part. When self-calibration is needed, the microprocessor controls the ultrasonic transceiver module to transmit and receive ultrasonic signals, tracks the current position of the pointer according to the reflected signals of the ultrasonic signals, determines the calibration position of the pointer according to the acquired calibration time, and controls the pointer driving circuit to work so as to drive the pointer to rotate to the calibration position. Therefore, by adopting the technical scheme, manual calibration is not needed, convenience of a user is improved, in addition, the position of the pointer is tracked through the ultrasonic receiving and sending module, no sound exists, unnecessary light interference does not exist, user experience is improved, finally, a calibration button does not need to be arranged on the shell, and the risk of mistaken touch is effectively prevented.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a structural diagram of a dial plate of an intelligent timepiece according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a self-calibration provided by an embodiment of the present application;
fig. 3 is a flowchart of a self-calibration method applied to a smart timepiece according to an embodiment of the present application;
fig. 4 is a flowchart of another self-calibration method applied to a smart timepiece according to an embodiment of the present application;
fig. 5 is a block diagram of a self-calibration device applied to a smart timepiece according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The core of the application is to provide an intelligent clock and a self-calibration method and device thereof.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
Fig. 1 is a structural diagram of a dial plate of an intelligent timepiece according to an embodiment of the present application. Fig. 2 is a schematic diagram of self-calibration provided in an embodiment of the present application. As shown in fig. 1, the dial 1 is provided with hands, which are an hour hand and a minute hand (a longer hand is the minute hand, and a shorter hand is the hour hand). Dial plate 1 has seted up calibration hole 2, and ultrasonic transceiver module 3 sets up in the below of calibration hole 2, and the movement track of table needle has the coincidence portion with calibration hole 2.
Under the general condition, the start ends of the hour hand and the minute hand are both in the center of the dial plate 1 and are relatively fixed, the tail ends of the hour hand and the minute hand rotate around the dial plate 1, scales are marked on the dial plate 1 and used for indicating time, the scale can be marked in a mode that one scale is arranged every 1 minute, or one scale is arranged every 5 minutes, or one scale is arranged every 15 minutes, and the implementation of the technical scheme is not influenced. The hands are located on the same axis, differing only in height. It should be noted that, the table hand in fig. 1 including the hour hand and the minute hand is only one specific application scenario, and may also include the second hand. It will be understood that if the second hand is included, the length of the second hand is longer than that of the hour and minute hands, so that its trajectory also has an overlap with the calibrated hole, in other words, the calibrated hole is at a distance from the centre of the dial that is less than the length of the shortest hand, so that each hand can pass above the calibrated hole during rotation.
A hand driving circuit 5, a microprocessor 6, a battery, a power supply circuit, and the like are provided below the dial 1.
In specific implementation, calibration time can be acquired from the terminal device through the communication module 4, so that the communication module is used for establishing wireless connection with the terminal device and receiving the calibration time sent by the terminal device, the communication module can be a bluetooth module or a WIFI module, the embodiment is not limited, and because the communication data volume between the terminal device and the intelligent clock is small, generally, the bluetooth module is adopted, so that the power consumption is low, the size is small, and too large space cannot be occupied. The pointer driving circuit includes a stepping motor, the step length of the stepping motor is not limited, for example, one step length corresponds to 1 degree or 2 degrees of minute pointer rotation, and the subsequent step length is used to describe the rotation angle of the pointer. The microprocessor is electrically connected with the battery, the watch hand driving circuit and the communication module, controls the charging and discharging of the battery, sends a driving signal to the watch hand driving circuit to control the watch hand driving circuit to work, and receives data acquired by the communication module, such as the calibration time of the terminal equipment. It is understood that the terminal device may be a mobile phone or a tablet computer. The ultrasonic transceiver module is connected with the microprocessor and used for transmitting ultrasonic signals and receiving ultrasonic signals under the control of the microprocessor, and generally comprises two parts, wherein one part is an ultrasonic transmitting circuit, and the other part is an ultrasonic receiving circuit. It should be noted that, since the received ultrasonic signal is reflected by the transmitted ultrasonic signal, it is necessary for the microprocessor to determine from the reflected signal of the ultrasonic signal which reflecting medium the signal is reflected by. Since different reflection paths lead to different receiving times of the reflected signals, the microprocessor can judge the reflection medium of the transmitted signal according to the receiving time (calculated from the transmitting time) of the ultrasonic receiving circuit. For example, when the pointer is not at the position corresponding to the calibration hole, the ultrasonic signal is reflected back by the meter cover, and the reflection path is longer, so the receiving time is longer; when the pointer is located at the position corresponding to the calibration hole, the ultrasonic signals are reflected back by the pointer, the reflection path is short at the moment, the receiving time is short, furthermore, the pointer comprises various pointers, the heights of the various pointers relative to the horizontal plane are different, the reflection paths corresponding to the ultrasonic signals reflected back by the pointers are different, the corresponding receiving times are different, and the current position of the pointer can be tracked by judging the current reflection signals through the receiving times.
The microprocessor may obtain the calibration time through the communication module, and may determine the position of the hand corresponding to the time, that is, the calibration position of the hand, for example, the calibration time is 0:00, and then the calibration position of the hand should be the hour hand alignment 12 and the minute hand alignment 12. It can be understood that, for the microprocessor, the current position of the pointer is known, and the calibration position of the pointer is also known, so that it is only necessary to determine how many degrees the pointer needs to rotate, and then the pointer driving circuit is controlled by combining the step length of the pointer driving circuit.
The above is the principle of self-calibration, and the ultrasonic transceiver module is adopted instead of the photoelectric transceiver module, such as the infrared transceiver module, because the photoelectric transceiver module needs to emit light, which affects the life of the user, especially at night. And ultrasonic wave signal needs the pulse square wave drive of high frequency, compares in the level drive of infrared transceiver module, and the reliability is higher, is difficult to appear the problem of spurious triggering.
The hands mentioned in the present embodiment may be driven independently or may be linked with each other. In addition, the number of the calibration holes is not limited in this embodiment, and may be one or more, and the shape may be circular or square. Since the calibration holes are used to track the position of the hands, if the number of the calibration holes is large, the hands can be tracked more easily, that is, the time taken is short, so that the efficiency of self-calibration can be improved. In addition, for more accurate tracking of the position of the pointer, the calibration hole should be as small as possible, and in the width direction, the calibration hole is smaller than the width corresponding to one step, for example, if one step corresponds to a minute hand walking 1 degree, the arc length corresponding to one step is (1/360) L, where L is the inner perimeter of the dial.
It can be understood that, since the intelligent timepiece provided in this embodiment does not require manual calibration, the time for self-calibration can be flexibly set, and the self-calibration can be performed periodically, for example, once every month, or when the deviation is greater than a threshold value, for example, when the deviation is greater than 2 minutes. Either the former or the latter requires a microprocessor to control and to acquire calibration time according to different types of self-calibration. In addition, since the ultrasonic transceiver module has a certain power consumption, the module can be turned on only during the self-calibration period and turned off for the rest of the time in order to reduce the overall power consumption of the smart watch.
The intelligent clock provided by the embodiment comprises a dial, a hand driving circuit, a microprocessor and an ultrasonic transceiver module. The dial plate is provided with a calibration hole, the ultrasonic transceiver module is arranged below the calibration hole, and the movement track of the pointer and the calibration hole are provided with a coincidence part. When self-calibration is needed, the microprocessor controls the ultrasonic transceiver module to transmit and receive ultrasonic signals, tracks the current position of the pointer according to the reflected signals of the ultrasonic signals, determines the calibration position of the pointer according to the acquired calibration time, and controls the pointer driving circuit to work so as to drive the pointer to rotate to the calibration position. Therefore, by adopting the technical scheme, manual calibration is not needed, convenience of a user is improved, in addition, the position of the pointer is tracked through the ultrasonic receiving and sending module, no sound exists, unnecessary light interference does not exist, user experience is improved, finally, a calibration button does not need to be arranged on the shell, and the risk of mistaken touch is effectively prevented.
In addition to the above embodiments, each of the hands is an independently driven hand.
In a specific implementation, in order to reduce the occupation of the dial, the calibration hole is provided with one. When there is one calibration hole and more than one calibration hole is represented, for example, the two hands are two, that is, the hour hand and the minute hand, then the microprocessor is at the position corresponding to the calibration hole when it initially tracks one of the hands, but the microprocessor also needs to track the other hand, so it needs to rotate the hand to a position other than the position corresponding to the calibration hole, so that in this case, it is more suitable for the case that each hand is driven independently.
In addition to the above-described embodiment, the calibration hole is plural, and each of the hands is an index driven in linkage.
It should be noted that, the pointer is a pointer driven in a linkage manner, and one calibration hole may be provided, however, after the current position of the minute hand is tracked, the minute hand needs to be rotated again to track the current position of the hour hand, and in this process, the minute hand may need to rotate once, so that the time consumed by self-calibration is long, and therefore, in this embodiment, a plurality of calibration holes are provided. It can be understood that, if the calibration hole is provided in plural, the corresponding ultrasound transceiver modules are also required in plural, the number of the calibration holes is one-to-one, and each ultrasound transceiver module is provided below the corresponding calibration hole. Specifically, for the pointer driven in linkage, the microprocessor starts timing at a set acquisition time, for example, the calibration time is 12:00, the set acquisition time may be 11:55, the microprocessor starts timing when the minute hand is at the position of 11, if the current intelligent clock is accurate, the minute hand should be tracked after 5 minutes, if the minute hand is tracked after 8 minutes, the minute hand of the current intelligent clock is slow by 3 minutes, and it is further necessary to determine whether the hour hand is slow, so that the hand driving circuit needs to be controlled to work to drive the minute hand to rotate by one turn to determine whether the hour hand is slow, and if the hour hand is accurate, the current intelligent clock is finally determined to be 3 minutes slower than the calibration time. And if the time difference is obtained, the microprocessor can control the pointer driving circuit to work to drive the minute pointer to rotate to the calibration position.
Fig. 3 is a flowchart of a self-calibration method applied to a smart clock according to an embodiment of the present application. The intelligent clock comprises a dial plate, a pointer driving circuit, a microprocessor and an ultrasonic receiving and transmitting module connected with the microprocessor, wherein the dial plate is provided with a calibration hole, the ultrasonic receiving and transmitting module is arranged below the calibration hole, and the movement track of the pointer and the calibration hole are provided with a coincidence part. For the description of the intelligent clock, refer to the above, and the description of the embodiment is not repeated. As shown in fig. 3, the method may be implemented by a microprocessor, comprising the steps of:
s10: and controlling the ultrasonic transceiver module to transmit and receive ultrasonic signals.
The ultrasonic transceiver module is connected with the microprocessor and used for transmitting ultrasonic signals and receiving ultrasonic signals under the control of the microprocessor, and generally comprises two parts, wherein one part is an ultrasonic transmitting circuit, and the other part is an ultrasonic receiving circuit.
The reason why the ultrasonic transceiver module is used instead of the photoelectric transceiver module, such as an infrared transceiver module, is that the photoelectric transceiver module needs to emit light, which affects the life of a user, especially at night. And ultrasonic wave signal needs the pulse square wave drive of high frequency, compares in the level drive of infrared transceiver module, and the reliability is higher, is difficult to appear the problem of spurious triggering.
S11: and tracking the current position of the pointer according to the reflected signal of the ultrasonic signal.
It should be noted that, since the received ultrasonic signal is reflected by the transmitted ultrasonic signal, it is necessary for the microprocessor to determine from the reflected signal of the ultrasonic signal which reflecting medium the signal is reflected by. Since different reflection paths lead to different receiving times of the reflected signals, the microprocessor can judge the reflection medium of the transmitted signal according to the receiving time (calculated from the transmitting time) of the ultrasonic receiving circuit. For example, when the pointer is not at the position corresponding to the calibration hole, the ultrasonic signal is reflected back by the meter cover, and the reflection path is longer, so the receiving time is longer; when the pointer is located at the position corresponding to the calibration hole, the ultrasonic signals are reflected back by the pointer, the reflection path is short at the moment, the receiving time is short, furthermore, the pointer comprises various pointers, the heights of the various pointers relative to the horizontal plane are different, the reflection paths corresponding to the ultrasonic signals reflected back by the pointers are different, the corresponding receiving times are different, and the current position of the pointer can be tracked by judging the current reflection signals through the receiving times.
S12: and determining the calibration position of the pointer according to the acquired calibration time.
In a specific implementation, the calibration time may be obtained through the communication module, and after the calibration time is obtained, the position of the pointer corresponding to the time, that is, the calibration position of the pointer, may be determined, for example, the calibration time is 0:00, so that the calibration position of the pointer is the hour pointer 12 and the minute pointer 12.
S13: and controlling the pointer driving circuit to work so as to drive the pointer to rotate to the calibration position.
It can be understood that, for the microprocessor, the current position of the pointer is known, and the calibration position of the pointer is also known, so that it is only necessary to determine how many degrees the pointer needs to rotate, and then the pointer driving circuit is controlled by combining the step length of the pointer driving circuit.
The self-calibration method applied to the intelligent clock provided by the embodiment tracks the current position of the pointer according to the reflected signal of the ultrasonic signal by controlling the ultrasonic transceiver module to transmit and receive the ultrasonic signal, determines the calibration position of the pointer according to the acquired calibration time, and finally controls the pointer driving circuit to work so as to drive the pointer to rotate to the calibration position. Therefore, by adopting the technical scheme, manual calibration is not needed, convenience of a user is improved, in addition, the position of the pointer is tracked through the ultrasonic receiving and sending module, no sound exists, unnecessary light interference does not exist, user experience is improved, finally, a calibration button does not need to be arranged on the shell, and the risk of mistaken touch is effectively prevented.
In addition to the above embodiments, each of the hands is an independently driven hand.
In one embodiment, the number of the calibration holes is one, so that the occupied space of the dial can be effectively reduced.
Furthermore, the watch hand includes hour hand and minute hand, and in the concrete implementation, can be according to the position of tracking the hour hand earlier, tracks the position of minute hand again, also can be according to the position of tracking the minute hand earlier, tracks the position of hour hand again, does not influence this application technical scheme's realization. Fig. 4 is a flowchart of another self-calibration method applied to a smart timepiece according to an embodiment of the present application. As mentioned above, the first hand is an hour hand, and the second hand is a minute hand, as shown in fig. 4, to track the position of the hour hand first and then track the position of the minute hand, specifically, S11 includes:
s110: and judging whether the hour hand is positioned at the position corresponding to the calibration hole or not according to the transmitting and receiving time of the ultrasonic signal, if not, entering S111, and if so, entering S112.
S111: controlling the watch hand driving circuit to work so as to drive the watch hand to rotate by one step length, and returning to S110;
s112: acquiring a pre-specified step size;
s113: controlling a pointer driving circuit to rotate a pointer to a specified position according to the step amount to serve as the current position of the pointer; wherein the designated position is a position corresponding to the calibration hole; in order to avoid shielding the minute hand calibration position, the hour hand is rotated to other positions except the corresponding position of the calibration hole;
s114: and judging whether the minute hand is positioned at the position corresponding to the calibration hole or not according to the transmitting and receiving time of the ultrasonic signal, if not, entering S115, and if so, entering S116.
S115: controlling the pointer driving circuit to work so as to drive the minute pointer to rotate by one step length, and returning to S114;
s116: and determining the current position of the minute hand as the position corresponding to the calibration hole.
In this embodiment, the position of the hour hand is tracked first, and then the position of the minute hand is tracked. The pre-specified step size may be a step size corresponding to 90 degrees of rotation of the pointer, for example, if one step size is set to correspond to one degree of rotation, the pre-specified step size is 90. It should be noted that the above description of the pre-specified step size is only a specific implementation manner, and does not represent only this implementation manner, and in addition, the direction of rotation may be clockwise or counterclockwise, so long as the pointer whose position is currently determined is moved away from the position corresponding to the calibration hole, so as to track the positions of other pointers.
It can be understood that, in the present embodiment, the microprocessor determines whether the pointer is a minute pointer or an hour pointer by the difference between the heights of the two, and the corresponding receiving times are different, for example, the hour pointer is closer to the horizontal plane of the dial, the corresponding receiving time is t1, the minute pointer is closer to the horizontal plane of the dial, the corresponding receiving time is t2, and then t1 is smaller than t 2. Since the position of the hour hand is determined in S113 and the position of the minute hand is determined in S116, the microprocessor can adjust the rotation of the hour hand and the minute hand to be in the calibration position according to the calibration position of the hour hand and the minute hand after obtaining the above two positions.
Further, S13 includes:
s130: calculating a first step length amount required by the current position of the hour hand to rotate to the calibration position of the hour hand and a second step length amount required by the current position of the minute hand to rotate to the calibration position of the minute hand;
s131: the control meter hand driving circuit drives the hour hand and the minute hand to rotate according to the first step length and the second step length respectively.
In addition, in other embodiments, before returning to S110, the method further includes:
and judging whether the accumulated rotation angle of the hour hand reaches 360 degrees, if not, returning to S110 to continue rotating the hour hand, and if so, outputting a calibration failure signal.
Similarly, in other embodiments, before returning to S114, the method further includes:
and judging whether the accumulated rotation angle of the minute hand reaches 360 degrees, if not, returning to S114 to continue rotating the hour hand, and if so, outputting a calibration failure signal.
It can be understood that for the hour hand and the minute hand, if the position corresponding to the calibration hole is not detected by continuously rotating 360 degrees, either the ultrasonic transceiver module or the watch hand driving circuit is in failure, so that the user is reminded by outputting a calibration failure signal. According to a specific implementation mode, the vibration module can be arranged on the intelligent clock, and reminding is achieved by controlling the vibration of the vibration module.
On the basis of the above embodiment, the method further includes:
and when the condition of triggering self calibration is reached, starting the ultrasonic transceiver module.
Since the ultrasonic wave transceiver module belongs to an active device, long-time start inevitably has a certain influence on the power consumption of the smart clock, and therefore, in the embodiment, whether to start the ultrasonic wave transceiver module is determined by whether a condition for triggering self-calibration is satisfied. One of the conditions that triggers self-calibration is: another condition for triggering self-calibration is that a user trigger signal is received: the time for periodic calibration is reached.
On the basis of the above embodiment, after tracking the current position of the pointer, the method further includes:
and turning off the ultrasonic transceiver module.
Since the ultrasonic wave transceiver module belongs to an active device, long-time opening inevitably has a certain influence on the power consumption of the smart watch, and therefore, in the present embodiment, after the position of the pointer is tracked, the ultrasonic wave transceiver module is turned off.
On the basis of the above embodiment, before tracking the current position of the pointer according to the reflected signal of the ultrasonic signal, the method further includes:
judging whether each pointer in the pointer is not at the position corresponding to the calibration hole according to the transmitting and receiving time of the ultrasonic signal;
if yes, tracking the current position of the pointer according to the reflected signal of the ultrasonic signal;
if not, determining the pointer to be adjusted according to the receiving time;
and controlling the pointer driving circuit to work so as to drive the pointer to be adjusted to move by a step length, and returning to the step of judging whether all the pointers in the pointer are not at the positions corresponding to the calibration holes according to the transmitting and receiving time of the ultrasonic signals.
In order to improve the accuracy of self-calibration, in the embodiment, it is necessary to ensure that each pointer is not at the position corresponding to the calibration hole in the early stage of self-calibration, and if any pointer is at the position corresponding to the calibration hole initially, it is necessary to rotate the pointer to the position corresponding to the non-calibration hole first, and then track the position of each pointer according to the above method.
Finally, the embodiment of the application also provides a self-calibration device which corresponds to the method and is applied to the intelligent clock. The intelligent clock comprises a dial plate, a pointer driving circuit, a microprocessor and an ultrasonic receiving and transmitting module connected with the microprocessor, wherein the dial plate is provided with a calibration hole, the ultrasonic receiving and transmitting module is arranged below the calibration hole, and the movement track of the pointer and the calibration hole are provided with a coincidence part. Fig. 5 is a block diagram of a self-calibration device applied to a smart timepiece according to an embodiment of the present application. As shown in fig. 5, the apparatus includes:
the first control module 10 is used for controlling the ultrasonic transceiver module to transmit and receive ultrasonic signals;
the tracking module 11 is used for tracking the current position of the pointer according to the reflected signal of the ultrasonic signal;
the determining module 12 is configured to determine a calibration position of the pointer according to the acquired calibration time;
and the second control module 13 is used for controlling the pointer driving circuit to work so as to drive the pointer to rotate to the calibration position.
Since the embodiments of the apparatus part and the embodiments of the method part correspond to each other, the embodiments of the apparatus part are not described again.
As a preferred embodiment, the method further comprises the following steps:
and the starting module is used for starting the ultrasonic transceiver module when the condition of triggering self calibration is reached.
As a preferred embodiment, the method further comprises the following steps:
and the closing module is used for closing the ultrasonic transceiver module after tracking the current position of the pointer.
As a preferred embodiment, the method further comprises the following steps:
the judging module is used for judging whether all the pointers in the pointer are not positioned at the positions corresponding to the calibration holes according to the transmitting and receiving time of the ultrasonic signals before tracking the current position of the pointer according to the reflected signals of the ultrasonic signals; if yes, the tracking module 11 is triggered, and if not, the third control module is triggered;
and the third control module is used for determining the pointer to be adjusted according to the receiving time, controlling the pointer driving circuit to work so as to drive the pointer to be adjusted to move by one step length, and triggering the judgment module.
The intelligent clock and the self-calibration method and device thereof provided by the application are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. An intelligent clock comprises a dial plate, a hand driving circuit and a microprocessor, and is characterized by further comprising an ultrasonic transceiver module, wherein the dial plate is provided with a calibration hole, the ultrasonic transceiver module is arranged below the calibration hole, and a movement track of the hand and the calibration hole are provided with a superposition part;
the microprocessor is connected with the ultrasonic receiving and transmitting module and used for controlling the ultrasonic receiving and transmitting module to transmit and receive ultrasonic signals, tracking the current position of the pointer according to the reflected signals of the ultrasonic signals, determining the calibration position of the pointer according to the acquired calibration time, and controlling the pointer driving circuit to work so as to drive the pointer to rotate to the calibration position.
2. An intelligent timepiece according to claim 1, wherein each of the hands is an independently driven hand.
3. The self-calibration method applied to the intelligent clock is characterized in that the intelligent clock comprises a dial plate, a pointer driving circuit, a microprocessor and an ultrasonic wave receiving and transmitting module connected with the microprocessor, the dial plate is provided with a calibration hole, the ultrasonic wave receiving and transmitting module is arranged below the calibration hole, and the movement track of the pointer and the calibration hole have a superposition part, and the method comprises the following steps:
controlling the ultrasonic transceiver module to transmit and receive ultrasonic signals;
tracking the current position of the pointer according to the reflected signal of the ultrasonic signal;
determining the calibration position of the pointer according to the acquired calibration time;
and controlling the meter pointer driving circuit to work so as to drive the meter pointer to rotate to the calibration position.
4. The self-calibration method of claim 3, wherein each of the hands is an independently driven hand.
5. The self-calibration method of claim 4, wherein the hands comprise an hour hand and a minute hand, the calibration hole is at least one, and tracking the current position of the hands according to the reflected signal of the ultrasonic signal comprises:
judging whether a first pointer is positioned at a position corresponding to the calibration hole or not according to the transmitting and receiving time of the ultrasonic signal;
if not, controlling the meter pointer driving circuit to work to drive the first meter pointer to rotate by a step length, and returning to the step of judging whether the first meter pointer is positioned at the position corresponding to the calibration hole according to the transmitting and receiving time of the ultrasonic signal;
if yes, acquiring a preassigned step size;
controlling the pointer driving circuit to rotate the first pointer to a specified position according to the step amount to serve as the current position of the first pointer; wherein the designated position is a position corresponding to the calibration hole;
judging whether a second pointer is positioned at a position corresponding to the calibration hole or not according to the transmitting and receiving time of the ultrasonic signal;
if not, controlling the meter pointer driving circuit to work to drive the second meter pointer to rotate by a step length, and returning to the step of judging whether the second meter pointer is positioned at the position corresponding to the calibration hole according to the transmitting and receiving time of the ultrasonic signal;
if so, determining the current position of the second pointer as the position corresponding to the calibration hole;
the first pointer is the hour pointer or the minute pointer, and the corresponding second pointer is the minute pointer or the hour pointer.
6. The self-calibration method of claim 5, wherein the controlling the pointer driving circuit to operate to rotate the pointer to the calibration position comprises:
calculating a first step length amount required by the current position of the hour hand to be rotated to the calibration position of the hour hand and a second step length amount required by the current position of the minute hand to be rotated to the calibration position of the minute hand;
and controlling the meter hand driving circuit to drive the hour hand and the minute hand to rotate according to the first step length and the second step length respectively.
7. The self-calibration method according to any one of claims 3 to 6, further comprising:
and when the condition of triggering self calibration is reached, starting the ultrasonic transceiver module.
8. The self-calibration method according to any one of claims 3 to 6, wherein after tracking the current position of the pointer, the method further comprises:
and closing the ultrasonic transceiver module.
9. The self-calibration method according to any one of claims 3 to 6, further comprising, before tracking the current position of the pointer from the reflected signal of the ultrasonic signal:
judging whether each pointer in the pointer is not positioned at the position corresponding to the calibration hole according to the transmitting and receiving time of the ultrasonic signal;
if yes, tracking the current position of the pointer according to the reflected signal of the ultrasonic signal;
if not, determining a pointer to be adjusted according to the receiving time;
and controlling the meter pointer driving circuit to work so as to drive the pointer to be adjusted to move by a step length, and returning to the step of judging whether all pointers in the meter pointer are not positioned at the positions corresponding to the calibration holes according to the transmitting and receiving time of the ultrasonic signals.
10. The utility model provides a self calibration device for intelligent clock and watch, characterized in that, intelligent clock and watch includes dial plate, table needle drive circuit, microprocessor, and the ultrasonic transceiver module who is connected with microprocessor, calibration hole has been seted up to the dial plate, ultrasonic transceiver module sets up in the below of calibration hole, the orbit of table needle and calibration hole have coincidence portion, the device includes:
the first control module is used for controlling the ultrasonic transceiving module to transmit and receive ultrasonic signals;
the tracking module is used for tracking the current position of the pointer according to the reflected signal of the ultrasonic signal;
the determining module is used for determining the calibration position of the pointer according to the acquired calibration time;
and the second control module is used for controlling the meter hand driving circuit to work so as to drive the meter hand to rotate to the calibration position.
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| CN114185446A (en) * | 2020-09-15 | 2022-03-15 | 华为技术有限公司 | Calibration signal generation method, electronic device and computer storage medium |
| CN114879473B (en) * | 2022-04-22 | 2023-12-22 | 歌尔股份有限公司 | Smart watch calibration method and system, smart watch and readable storage medium |
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