CN110879521A - Time calibration device and method for light intelligent watch - Google Patents
Time calibration device and method for light intelligent watch Download PDFInfo
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- CN110879521A CN110879521A CN201910942093.2A CN201910942093A CN110879521A CN 110879521 A CN110879521 A CN 110879521A CN 201910942093 A CN201910942093 A CN 201910942093A CN 110879521 A CN110879521 A CN 110879521A
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Abstract
The invention discloses a time calibration device and a method of a light intelligent watch, wherein the time calibration device of the light intelligent watch comprises the following steps: the plurality of transmitting modules are respectively arranged in one-to-one correspondence with the gauge needles; the driving module is used for driving the pointer to rotate; the control processing module generates a transmitting signal and loads the transmitting signal on the transmitting module, and the frequencies of the transmitting signals loaded by the transmitting modules of different pointers are different; a plurality of receiving modules, each of which is arranged on the dial plate and has the same distance to the rotation center of the pointer; the receiving module receives the transmitting signal, generates a sensing signal and sends the sensing signal to the control processing module, and the control processing module judges the direction of the pointer according to the sensing signal and controls the driving module to drive the pointer to rotate to the target direction. According to the time calibration device of the light intelligent watch, the transmitting module fixed on the hands is used for transmitting signals to the space, the directions of the hands can be respectively positioned, the time calibration is more intelligent, and the calibration precision is guaranteed.
Description
Technical Field
The invention belongs to the technical field of intelligent equipment, and particularly relates to a time calibration device and method of a light intelligent watch.
Background
Light intelligent wrist-watch possess traditional gauge needle, crown, at the inside electronic module that has integrateed of wrist-watch, can realize simple functions such as meter step, communication. The current light smart watch time calibration mode: firstly, a terminal user adjusts a pointer to a 12-point direction, and then an instruction is issued through a mobile phone terminal APP; and the internal electronic module at the end of the light intelligent watch receives the instruction through BT/BLE, controls the stepping motor and adjusts the pointer to rotate to a corresponding position. The disadvantages of this calibration method are: (1) the light intelligent watch cannot locate the current position of the pointer, the user is required to adjust the pointer to 12 points at each time of time calibration, and the calibration mode is complicated. (2) Closed loop control of the time alignment cannot be achieved. The light intelligent watch receives the adjusting control instruction, the stepping motor drives the pointer to rotate, and if the pointer is not accurately rotated to the target direction, the light intelligent watch cannot detect the pointer.
Disclosure of Invention
The invention provides a time calibration device and a calibration method of a light intelligent watch, aiming at the technical problems that the current position of a pointer cannot be positioned in the time calibration of the existing light intelligent watch, so that the calibration mode is complicated, and the pointer direction after calibration cannot be checked to be correct.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
a time calibration device for a light smart watch, comprising:
the transmitting modules are provided with a plurality of transmitting modules, the transmitting modules are respectively arranged in one-to-one correspondence with the gauge pins, and the transmitting modules are fixed on the corresponding gauge pins;
the driving module is used for driving the pointer to rotate;
the control processing module generates a transmitting signal and loads the transmitting signal on the transmitting module, and the frequencies of the transmitting signals loaded by the transmitting modules of different pointers are different;
the receiving modules are arranged on the dial plate, and the distances from the receiving modules to the rotation center of the pointer are equal; the receiving module receives the transmitting signal, generates a sensing signal and sends the sensing signal to the control processing module, and the control processing module judges the direction of the pointer according to the sensing signal and controls the driving module to drive the pointer to rotate to the target direction.
Further, the transmitting module comprises a resonant circuit and an inverter circuit, and the control processing module controls the inverter circuit to generate an alternating current signal and load the alternating current signal on the resonant circuit.
Further, the coil of the resonance circuit is fixed to an end of the pointer away from the rotation center thereof.
Further, the transmitting module further comprises a switch circuit connected between the resonant circuit and the inverter circuit.
Furthermore, the receiving module comprises an induction coil, a rectifying circuit and a voltage detection circuit, and the rectifying circuit and the voltage detection circuit are respectively connected with the control processing module.
The invention also provides a time calibration method of the light intelligent watch, which comprises the following steps:
acquiring a time calibration control command and target time;
controlling the transmitting modules on the gauge needles to respectively transmit transmitting signals with different frequencies to the space;
receiving the transmitted signals by using a plurality of receiving modules and generating induction signals; the distances from the receiving modules to the rotation center of the pointer are equal;
distinguishing each pointer according to the induction signal and judging the current direction of each pointer;
and driving each pointer to rotate to the target direction.
Further, the step of distinguishing each pointer according to the sensing signal and judging the current direction of each pointer comprises: according to the strength of the induction signal of each receiving module, one or more receiving modules with the strength of the induction signal meeting set conditions are found out and serve as positioning modules, and the position of each positioning module at least corresponds to the direction of one pointer;
and acquiring the frequency of the induction signal of the positioning module, and determining the pointer corresponding to the positioning module according to the frequency of the induction signal.
Further, the method for determining the positioning module comprises the following steps: finding out all receiving modules with the induction signal intensity larger than a set threshold value as positioning modules;
or, the receiving modules are sorted according to the strength of the sensing signals, and the receiving module with the strongest strength of the sensing signals, or the receiving module positioned at the first two or the receiving module positioned at the first three, is compared to obtain the positioning module.
Further, the light intelligent watch calculates the target direction of each pointer according to the target time.
Further, after the step of driving each pointer to rotate to the target direction, the method also comprises the step of verifying whether each pointer reaches the target direction, if each pointer reaches the target direction, the time calibration is completed, otherwise, the method returns to the calibration step to calibrate again until each pointer reaches the target direction.
Compared with the prior art, the invention has the advantages and positive effects that: according to the time calibration device of the light intelligent watch, the transmitting module fixed on the watch hand is used for transmitting signals to the space, the receiving module fixed on the watch plate senses the transmitted signals, and the pointing direction of the watch hand can be positioned by utilizing the correlation between the strength and the distance of the magnetic induction signals. The direction of each pointer can be respectively positioned by controlling different frequencies of the transmission signals of each pointer, the time calibration is more intelligent, and the time after calibration can be verified by utilizing the structure, so that the calibration precision is ensured.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a time calibration device of a light smart watch according to the present invention;
fig. 2 is a schematic block diagram of an embodiment of a time calibration apparatus for a light smart watch according to the present invention;
fig. 3 is a schematic circuit diagram of an embodiment of a time calibration device of a light smart watch according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.
It should be noted that the terms "first" and "second" in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the first embodiment, an electronic module is integrated inside a light smart watch, which has the functions of a smart watch, as shown in fig. 1 and fig. 2, and has a conventional hand 11 and a dial 13, but the hand 11 is directly driven by a driving module, and does not have an adjusting knob of a conventional mechanical watch, and further cannot manually calibrate time, so that the current light smart watch controls and adjusts calibration by controlling the driving module, and because the hand cannot be positioned, the hand needs to be firstly rotated to a specific position and then calibrated, which results in a complicated calibration manner, and there are some reasons such as errors or step loss failure when the driving module works, and whether the hand after calibration and adjustment is in place cannot be known The control processing module and the receiving module 14, wherein, the transmitting module 12 has a plurality of, set up with the hand 11 one-to-one respectively, the transmitting module 12 is fixed on the corresponding hand 11, it can follow the hand 11 to rotate together, therefore, the quantity of the transmitting module 12 is not lower than the quantity of the hand 11, the hand 11 generally includes hour hand and minute hand, some include the second hand, at least hour hand and minute hand are provided with a transmitting module 12 respectively, if want to further improve the time indication accuracy of the light intelligent wrist-watch, for the wrist-watch with second hand, can also set up a transmitting module 12 on its second hand, the transmitting module 12 can send the electromagnetic wireless signal to the space under the drive. In this embodiment, the light smart watch is described by taking an example in which the light smart watch has an hour hand and a minute hand.
During time calibration, the driving module is used for driving the pointer 11 to rotate, and when the time is indicated in normal use, the driving module drives the pointer 11 to normally travel according to set frequency and the like. The control processing module is used for generating a transmitting signal and loading the transmitting signal on the transmitting module 12, so that the transmitting module 12 can transmit a wireless electromagnetic signal to a space, and the frequencies of the transmitting signals loaded by the transmitting modules 12 of different pointers 11 are different; the control processing module can be a control module of the light intelligent watch, and can also be independently arranged. The receiving modules 14 are multiple and are arranged on the dial plate 13 along the circumferential direction by taking the rotation center of the pointer 11 as the center of a circle, the receiving modules 14 are used for receiving the transmitting signals and generating the sensing signals to be sent to the control processing module, and the control processing module judges the direction of the pointer 11 according to the sensing signals. The receiving module 14 can be fixed on the plane of the dial plate 13, and also can be fixed on the inner side wall of the retainer ring 15 around the dial plate 13, the transmitting module 1212 is fixed on the pointer 11, the pointer 11 rotates or is static together, at least when time calibration is performed, the transmitting module 12 transmits wireless electromagnetic signals to the space, the receiving module 14 is used for receiving the transmitting signals, and generating induction signals to be sent to the control processing module, because the magnetic induction intensity is related to the distance, the signal intensity sensed by the receiving module 14 is large and small, and the position of the pointer 11 can be located.
The receiving modules 14 are preferably arranged uniformly on the dial 13 in the circumferential direction around the center of rotation of the hands 11.
The driving module can be realized by a stepping motor, and is certainly not limited to the stepping motor.
Since the plurality of hands 11 can be detected by different receiving modules 14 or the same receiving module 14 respectively, in order to identify each hand 11, the pointed time can be determined, the control processing module controls the emitting modules 12 of different hands 11 to load different frequencies of the emitting signals, and analyzes the frequency of the sensing signal of the receiving module 14, so as to determine the pointed direction of each hand 11 respectively, thereby achieving the positioning of the hands 11. The control processing module can simultaneously control the driving module to drive the pointer to rotate to the target direction. The frequency of emitting signals through controlling each pointer 11 is different, can fix a position respectively the directive of each pointer 11, time calibration is more intelligent, has 11 locate function of pointer, need not to drive pointer 11 to specific directive at first when the calibration, can be on the basis of present pointer 11 position direct drive to the target directive, it is no longer so loaded down with trivial details to adjust the calibration, and utilize above-mentioned structure to verify the time after the calibration moreover, can guarantee the calibration precision.
As shown in fig. 3, as a preferred embodiment, the transmitting module 12 includes a resonant circuit and an inverter circuit, the inverter circuit can convert an input dc signal into an ac signal, and the control processing module is configured to control the inverter circuit to generate the ac signal and load the ac signal on the resonant circuit. In this embodiment, the first capacitor C1 and the first coil L1 form a series resonance with a resonant frequency F1; the second capacitor C2 forms a series resonance with the second coil L2, the resonance frequency F2. The first coil L1 and the second coil L2 are inductance coils, the first coil L1 and the second coil L2 are respectively fixed on an hour hand and a minute hand, when the hour hand is calibrated, the control processing module controls the switching frequency of the inverter circuit to be F1, and after the first capacitor C1 and the first coil L1 are connected in series for frequency selection, a signal on the first coil L1 is a positive rotating wave with the frequency of F1; similarly, when the minute hand is calibrated, the signal of the second coil L2 is a positive rotation wave with the frequency F2.
The inverter circuit can be realized by a half-bridge inverter circuit.
Since the receiving module 14 determines whether the transmitting module 12 is close according to the strength of the sensing signal, it is preferable that at least the coil of the resonant circuit is fixed to the end of the pointer 11 away from the rotation center thereof in order to improve the determination accuracy. At this time, the transmitting module 12 is closest to the circumference formed by the arrangement of the receiving modules 14, the transmitting module 12 transmits electromagnetic signals to the surrounding space, the receiving module 14 pointed by the pointer 11 where the transmitting module 12 is located is closest to the transmitting module 12, the strength of the corresponding induced signal is strongest, and the receiving modules 14 located at other positions cannot induce such a strong induced signal due to the distance, so that the pointer 11 can be judged to be pointed to the receiving module 14 very accurately, and the pointing time of the pointer 11 can be determined because the positions of all the receiving modules 14 are known.
Because each pointer 11 corresponds to a resonant circuit respectively, in this embodiment, an inverter circuit may be configured for each resonant circuit, two resonant circuits may transmit wireless signals with frequencies of F1 and F2 respectively, in order to save occupied space and save circuit cost, the two resonant circuits may also share the same inverter circuit, the corresponding transmitting module 12 further includes a switch circuit, and the switch circuit is connected between the resonant circuit and the inverter circuit, and corresponds to the switch S4 and the switch S5 in fig. 3. At the moment, the resonant circuit cannot transmit wireless signals simultaneously, one of the resonant circuits is controlled to be conducted with the inverter circuit by controlling the on-off state of the switch circuit connected with the resonant circuit, so that the wireless signals can be transmitted, and after one of the meter hands is calibrated, the on-off state of the switch circuit is switched to calibrate the other meter hands until all the meter hands are calibrated.
As shown in fig. 3, the receiving module 14 includes an induction coil L3, a rectifying circuit and a voltage detecting circuit, and the rectifying circuit and the voltage detecting circuit are respectively connected to the control processing module. Because of the principle of electromagnetic induction, induction current can be induced by induction coil L3 arranged on dial plate 13, the induction current is rectified by a rectifying circuit, a direct current pulse signal is output and sent to a control processing module, the intensity of the signal is detected by the control processing module, a voltage detection circuit is used for detecting the voltage at two ends of induction coil L2 and sending the voltage to the control processing module, the control processing module obtains the frequency of the induction signal through analysis, and the frequency of the induction signal is consistent with the frequency of the induced emission signal, so that the frequency of the emission signal can be obtained, and the signal emitted by a pointer can be determined according to the frequency of the emission signal.
The rectification circuit can be realized by a full-bridge rectification circuit.
In a second embodiment, the present embodiment also provides a time calibration method for a light smart watch, as shown in fig. 1 to fig. 3, the time calibration method for the light smart watch includes:
acquiring a time calibration control command and target time;
controlling the transmitting modules on the gauge needles to respectively transmit transmitting signals with different frequencies to the space;
receiving the transmitted signals by using a plurality of receiving modules and generating induction signals; the distances from the receiving modules to the rotation center of the pointer are equal;
distinguishing each pointer according to the induction signal and judging the current direction of each pointer;
and driving each pointer to rotate to the target direction.
Because the hands 11 rotate around the rotation axes thereof and have specific rotation rules, and each direction of each hand 11 in the dial 13 has a unique specific time meaning, the present scheme does not need to adjust the hands 11 to the initial position first, but directly detects the current direction of the hands 11, and can calculate the angle of rotation from the current direction to the target direction according to the target direction, thereby controlling the rotation of each hand 11.
As a preferred embodiment, the step of distinguishing each pointer according to the sensing signal and determining the current pointing direction of each pointer includes: according to the strength of the induction signal of each receiving module 14, one or more receiving modules with the strength of the induction signal meeting set conditions are found out and serve as positioning modules, and the position of each positioning module at least corresponds to the direction of one pointer; the location of all receiving modules is known. The strength of the sensing signal of the receiving module is related to the distance between the transmitting module and the receiving module, when a certain pointer points to one of the receiving modules, the transmitting module of the pointer is closest to the receiving module, the strength of the sensing signal generated by the corresponding receiving module is strongest, the receiving module closest to the pointer can be judged according to the strength of the sensing signal, when the pointers do not coincide, each pointer can respectively determine the receiving module with the strongest sensing signal strength, and when two or more pointers coincide, the multiple pointers can determine the receiving module with the strongest sensing signal strength. And acquiring the frequency of the induction signal of the positioning module, and determining the pointer corresponding to the positioning module according to the frequency of the induction signal. Because each pointer 11 is provided with a transmitting module 12, the frequency of the signal transmitted by each transmitting module is different, and the frequency of the sensing signal of the receiving module is consistent with that of the transmitting signal, the pointer can be uniquely determined according to the frequency of the sensing signal.
Preferably, the method for determining the positioning module in this embodiment is as follows: finding out all receiving modules with the induction signal intensity larger than a set threshold value as positioning modules; the positioning module may generate sensing signals for a plurality of transmitting modules, and only the sensing signals with signal strength meeting the conditions need to be found out, and other weak sensing signals are considered to be far away and can be filtered.
Another method for determining the positioning module is to sort the receiving modules according to the strength of the sensing signals, and compare the receiving module with the strongest sensing signal strength or the receiving module located in the first two or the receiving module located in the first three to obtain the positioning module. Because the number of the hands is different (including at least the hour hand and the minute hand, and possibly the second hand), and the positional relationship between different hands is different (possibly overlapping or not overlapping), the number of available positioning modules is also different, and the corresponding acquisition mode can be selected according to actual needs.
The method utilizes the correlation between the strength of the magnetic induction signal and the distance, and further can position the directions of all the pointers 11. The frequency of emitting signals through controlling each pointer 11 is different, can fix a position respectively the directive of each pointer 11, time calibration is more intelligent, has 11 locate function of pointer, need not to drive pointer 11 to specific directive at first when the calibration, can be on the basis of present pointer 11 position direct drive to the target directive, it is no longer so loaded down with trivial details to adjust the calibration, and utilize above-mentioned structure to verify the time after the calibration moreover, can guarantee the calibration precision.
For the light smart watch, in the step of receiving the time calibration control command, the light smart watch receives the time calibration control command from the smart terminal, and when the time calibration control command is not received, the transmitting module 12 does not transmit the wireless signal, so as to save energy consumption. The intelligent terminal can be a smart phone, a tablet computer and the like.
The intelligent terminal sends time information needing to be calibrated to the light intelligent watch, and the light intelligent watch calculates the target direction of each pointer 11 according to the target time.
Theoretically, the target direction can be reached through once adjustment of the hands, however, in order to prevent inaccurate rotation caused by faults such as missing steps and rotation blocking of a driving mechanism for driving the hands 11 to rotate, the adjustment precision is not high, in this embodiment, it is preferable that after the step of driving the hands to rotate to the target direction, a step of verifying whether the hands 11 reach the target direction is further included, if the hands 11 reach the target direction, time calibration is completed, otherwise, the step of returning to the calibration step for recalibration is performed until the hands reach the target direction, and the time adjustment calibration precision is high. After the time calibration is completed, the transmitting module 12 does not transmit wireless signals any more, so as to save energy consumption until receiving the next time calibration control command from the intelligent terminal.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. A time calibration device of a light smart watch, comprising:
the transmitting modules are provided with a plurality of transmitting modules, the transmitting modules are respectively arranged in one-to-one correspondence with the gauge pins, and the transmitting modules are fixed on the corresponding gauge pins;
the driving module is used for driving the pointer to rotate;
the control processing module generates a transmitting signal and loads the transmitting signal on the transmitting module, and the frequencies of the transmitting signals loaded by the transmitting modules of different pointers are different;
the receiving modules are arranged on the dial plate, and the distances from the receiving modules to the rotation center of the pointer are equal; the receiving module receives the transmitting signal, generates a sensing signal and sends the sensing signal to the control processing module, and the control processing module judges the direction of the pointer according to the sensing signal and controls the driving module to drive the pointer to rotate to the target direction.
2. The calibration device according to claim 1, wherein the transmitting module comprises a resonant circuit and an inverter circuit, and the control processing module controls the inverter circuit to generate an alternating current signal and load the alternating current signal on the resonant circuit.
3. A calibration device according to claim 2 wherein the coils of the resonant circuit are fixed to the end of the hands remote from their centre of rotation.
4. The calibration device of claim 2, wherein the transmit module further comprises a switching circuit connected between the resonant circuit and the inverter circuit.
5. The calibration device according to any one of claims 1-4, wherein the receiving module comprises an induction coil, a rectifying circuit and a voltage detection circuit, and the rectifying circuit and the voltage detection circuit are respectively connected with the control processing module.
6. A time calibration method of a light intelligent watch is characterized by comprising the following calibration steps:
acquiring a time calibration control command and target time;
controlling the transmitting modules on the gauge needles to respectively transmit transmitting signals with different frequencies to the space;
receiving the transmitted signals by using a plurality of receiving modules and generating induction signals; the distances from the receiving modules to the rotation center of the pointer are equal;
distinguishing each pointer according to the induction signal and judging the current direction of each pointer;
and driving each pointer to rotate to the target direction.
7. The calibration method according to claim 6, wherein the step of distinguishing the pointers and determining the current pointing direction of the pointers according to the sensing signals comprises: according to the strength of the induction signal of each receiving module, one or more receiving modules with the strength of the induction signal meeting set conditions are found out and serve as positioning modules, and the position of each positioning module at least corresponds to the direction of one pointer;
and acquiring the frequency of the induction signal of the positioning module, and determining the pointer corresponding to the positioning module according to the frequency of the induction signal.
8. The calibration method according to claim 7, wherein the determination method of the positioning module is: finding out all receiving modules with the induction signal intensity larger than a set threshold value as positioning modules;
or, the receiving modules are sorted according to the strength of the sensing signals, and the receiving module with the strongest strength of the sensing signals, or the receiving module positioned at the first two or the receiving module positioned at the first three, is compared to obtain the positioning module.
9. The calibration method according to claim 8, further comprising the step of the smart watch calculating the target orientation of each hand according to the target time.
10. The calibration method according to any one of claims 6 to 9, wherein after the step of driving the hands to rotate to the target orientation, the method further comprises the step of verifying whether the hands reach the target orientation, and if the hands reach the target orientation, the time calibration is completed, otherwise, the method returns to the calibration step to calibrate again until the hands reach the target orientation.
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| CN201910942093.2A CN110879521A (en) | 2019-09-30 | 2019-09-30 | Time calibration device and method for light intelligent watch |
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Application publication date: 20200313 |