CN108051861B - Wear detection circuitry and intelligent wearing equipment - Google Patents
Wear detection circuitry and intelligent wearing equipment Download PDFInfo
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- CN108051861B CN108051861B CN201810023448.3A CN201810023448A CN108051861B CN 108051861 B CN108051861 B CN 108051861B CN 201810023448 A CN201810023448 A CN 201810023448A CN 108051861 B CN108051861 B CN 108051861B
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- 239000002184 metal Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- General Physics & Mathematics (AREA)
- Geophysics (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a wearing detection circuit and intelligent wearing equipment. The wearing detection circuit comprises a charging interface, a change-over switch and a wearing detection chip, wherein the charging interface comprises a charging column, and the change-over switch is provided with a first switch position for connecting the wearing detection chip and the charging column so that the charging column is used as a detection polar plate for wearing the detection chip. The charging interface of the intelligent wearing equipment is connected to the wearing detection chip through the setting change-over switch, so that the charging post of the charging interface is used as a detection polar plate for wearing the detection chip to carry out wearing detection, thereby omitting the special metal sheet for wearing detection, simplifying the assembly complexity of the components of the intelligent wearing equipment and reducing the cost of the intelligent wearing equipment.
Description
Technical Field
The invention relates to the field of intelligent wearing equipment, in particular to a wearing detection circuit and intelligent wearing equipment.
Background
In order to better track the movement and wearing habit of the user, a wearing detection function needs to be added in the intelligent wearing equipment. The current wearing detection implementation method mainly judges whether the intelligent wearing equipment is worn based on capacitance detection, specifically, a metal sheet or FPC for wearing detection is placed on the inner wall of a bottom shell of the intelligent wearing equipment, and the metal sheet or FPC is connected to a wearing detection chip to realize wearing detection. When a user wears the intelligent wearing equipment, the bottom shell of the intelligent wearing equipment contacts with human skin, at the moment, the human skin and the metal sheet form a capacitor, the potential change of the metal sheet is caused, and the wearing detection chip acquires the potential change of the metal sheet so as to output a wearing result. By adopting the method for wearing detection, special metal sheets or FPC (flexible printed circuit) are required to be arranged, so that the cost of the intelligent wearing equipment is increased, and the complexity of component assembly is increased.
Disclosure of Invention
In order to solve the problems that in the background art, a special metal sheet or FPC needs to be arranged for wearing detection, so that the cost of the intelligent wearing equipment is increased and the assembly of components is difficult, the invention provides a wearing detection circuit and the intelligent wearing equipment.
According to one aspect of the invention, there is provided a wear detection circuit comprising a charging interface, a change-over switch and a wear detection chip, the charging interface comprising a charging post, the change-over switch having a first switch position connecting the wear detection chip and the charging post such that the charging post acts as a detection plate of the wear detection chip; the circuit also comprises a charging chip, and the change-over switch is also provided with a second switch position for connecting the charging chip and the charging column.
Preferably, the switch has a control pin that controls the switch to switch between a first switch position and a second switch position; the circuit also includes a processor having a switch control pin connected to the control pin.
Preferably, the processor is provided with a detection pin connected with the wearing detection chip, and the processor obtains the detection result of the wearing detection chip through the detection pin; when the detection result of the wearing detection chip is that the wearing detection chip is worn, the switch control pin outputs a first control signal to the control pin so that the change-over switch is positioned at a first switch position; when the detection result of the wearing detection chip is that the wearing detection chip is not worn, the switch control pin outputs a second control signal to the control pin every preset time so that the change-over switch is positioned at a second switch position.
Preferably, the circuit further comprises a voltage detection branch circuit for detecting whether an external power supply is connected when the detection result of the wearing detection chip is that the circuit is not worn; the processor is provided with a voltage detection pin connected with the voltage detection branch circuit; the voltage detection pin detects and acquires the charging voltage of the charging chip through the voltage detection branch; when the charging voltage is at a high level, the switch control pin outputs a second control signal; when the charging voltage is at a low level, the switch control pin outputs a first control signal.
Preferably, the charging post comprises a first charging post and a second charging post, the first charging post is connected with a common pin of the change-over switch, and the second charging post is grounded.
Preferably, the circuit further comprises a first resistor, the first end of the first resistor is grounded, and the second end of the first resistor is connected with the control pin of the change-over switch.
Preferably, the voltage detection branch comprises a second resistor and a third resistor; the first end of the second resistor is connected with the input end of the charging chip, the second end of the second resistor is connected with the first end of the third resistor, and the second end of the third resistor is grounded; the voltage detection pin of the processor is connected with the second end of the second resistor.
According to another aspect of the present invention, there is provided an intelligent wearable device, the intelligent wearable device including a battery, the intelligent wearable device further including the wear detection circuit in any one of the above, a charging interface of the wear detection circuit being connected to the battery through a switch, and charging the battery with a charging chip.
Preferably, the change-over switch is an electronically controlled switch.
The invention has the beneficial effects that:
according to the technical scheme of the invention, the charging post of the charging interface of the intelligent wearing equipment is connected to the wearing detection chip through the change-over switch, and the charging post is used as the detection polar plate for wearing the detection chip to carry out wearing detection of the intelligent wearing equipment, so that the metal sheet for wearing detection is not required to be specially arranged to carry out wearing detection, the cost of the intelligent wearing equipment is reduced, and the component assembly of the intelligent wearing equipment is simpler.
Drawings
Fig. 1 is a diagram of a wear detection circuit according to an embodiment of the present invention.
Detailed Description
In order to solve the technical problem set forth in the background art, the inventor of the application thinks of setting up a change-over switch, connects the charging post of the interface that charges to wearing the detection chip, makes the charging post wear the detection as wearing the detection polar plate that detects. For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the wearing detection circuit provided by the embodiment of the invention comprises a charging interface 60, a change-over switch 10 and a wearing detection chip 20, wherein a charging column is arranged in the charging interface 60, and a common pin of the change-over switch 10, namely a first pin 1, is connected with the charging interface 60. The switch 10 has a first switch position in which the first pin 1 of the switch 10 is connected to the second pin 2 and the second pin 2 is connected to the input of the wear detection chip 20, so that the switch 10 connects the charging post of the charging interface 60 to the wear detection chip 20. When the charging post is connected to wear detection chip 20, the charging post is used as the detection polar plate of wearing detection chip 20 for wear the detection, thereby need not to set up special sheetmetal and wear the detection, reduce the cost of production and the complexity of part equipment. Preferably, the charging post includes a first charging post and a second charging post, the first pin 1 of the switch 10 is connected with the first charging post, and the second charging post is grounded. With this arrangement, the first charging post can be used as a detection plate of the wearing detection chip 20 for wearing detection.
In an embodiment of the present invention, the wear detection circuit further comprises a charging chip 30 for charging the battery of the smart wearable device. The switch 10 further has a second switch position in which the first pin 1 of the switch 10 is connected to the third pin 3 and the third pin 3 is connected to the input terminal of the charging chip 30, so that the switch 10 connects the charging post of the charging interface 60 to the charging chip 30 for a charging operation. When the charging interface 60 is connected with an external power supply, the switch 10 is switched to the second switch position, and at this time, the charging column of the charging interface 60 is connected to the charging chip 30, and the external power supply charges the storage battery of the intelligent wearable device through the charging chip 30. Through the switch 10 between first switch position and second switch position, the post that charges is connected to the chip 30 that charges when intelligent wearing equipment charges, is connected to when not charging and wears detection chip 20 and wear the detection, when guaranteeing the normal function of charging of interface, can also wear the detection.
In an embodiment of the invention, the switch 10 further has a control pin 4, the control pin 4 controlling the switch 10 to switch between the first switch position and the second switch position. Preferably, the wear detection circuit further comprises a processor 40, the processor 40 having a switch control pin GPIO2, the switch control pin GPIO2 being for outputting a switch control signal for switching the switch 10. The control pin 4 is connected to the switch control pin GPIO2, receives a switching control signal output by the switch control pin GPIO2, and controls the switching operation of the switch 10 according to the switching control signal, for example, to switch from the first switch position to the second switch position. The processor 40 outputs a switching control signal of the switch 10 to accurately control the switching action of the switch 10, so as to ensure the correct connection of the switch 10. Preferably, the processor 40 adopts a microprocessor MCU, so as to be conveniently integrated in the intelligent wearable device, and is applicable to small intelligent wearable devices, such as a smart bracelet or a smart watch.
In the embodiment of the present invention, the switch 10 is in the first switch position by default, that is, the charging post is connected to the wearing detection chip 20 by default, and the wearing detection chip 20 can use the charging post to perform wearing detection. Preferably, the wear detection circuit further comprises a first resistor R1, a first end of the first resistor R1 is grounded, and a second end of the first resistor R1 is connected with the control pin 4 of the switch 10. When the charging interface 60 is not connected to an external power supply for charging, or the switch control pin GPIO2 of the processor 40 does not output a switching control signal, the control pin 4 of the switch 10 is connected to the reference ground of the smart wearable device through the first resistor R1, that is, the level of the control pin 4 is pulled down, so that the switch is in the first switch position. The default position of the switch 10 is the first switch position, and the wearing detection chip 20 can use the charging post to carry out wearing detection at any time. Because the number of times of wearing detection of the intelligent wearing equipment is more than the number of times of charging, if the default position of the change-over switch 10 is set to be the second switch position, the change-over switch 10 needs to be switched every time the wearing detection is required, so that the number of times of switching the change-over switch 10 can be increased, the loss of the change-over switch 10 is accelerated, and the reliability of the change-over switch 10 cannot be ensured.
When the smart wearable device needs to be charged, the change-over switch 10 needs to be switched from the first switch position to the second switch position. The processor 40 outputs a switching control signal according to the detection result of the wearing detection chip 20, and causes the change-over switch 10 to switch to the second switch position when the user does not wear the smart wearable device. Preferably, the processor 40 has a detection pin GPIO3 connected to the wearing detection chip 20, and the detection pin GPIO3 is connected to an output terminal GPIO1 of the wearing detection chip 20. The output end GPIO1 of the wearing detection chip 20 outputs two results of wearing detection of the intelligent wearing equipment, and wearing or not wearing. The processor 40 obtains the detection result through the detection pin GPIO3, and outputs different switching control signals according to different detection results. Specifically, when the detection result of wearing the detection chip 20 is wearing, the switch control pin GPIO2 of the processor 40 outputs the first control signal to the control pin 4 of the switch 10, and the control pin 4 controls the switch 10 to be located at the first switch position. Since the switch 10 is in the first switch position when the level of the control pin 4 of the switch 10 is low, the first control signal is preferably a low level signal. The intelligent wearing device is in a wearing state, which indicates that the intelligent wearing device is being worn on a user, and charging cannot be performed at this time, so that the processor 40 can output a continuous low level to enable the change-over switch 10 to be located at the first switch position all the time.
When the detection result of the wearing detection chip 20 is that the switch is not worn, the switch control pin GPIO2 outputs a second control signal to the control pin 4 of the switch 10 every preset time, so that the switch 10 is located at the second switch position. When the smart wearable device is not worn, the user may place the smart wearable device on the desktop, but the user may not charge the smart wearable device either, and the switch 10 does not need to be switched to the second switch position at this time. In order to ensure that the intelligent wearable device can be charged normally, the switch 10 needs to be located at the second switch position, so that the processor 40 outputs the second control signal every preset time to switch the switch 10 to the second switch position. For example, the processor 40 outputs a high level of 500ms every 3 s. In the 500ms period, the switch 10 is switched to the second switch position, and if the charging interface 60 is connected to the external power supply, the charging chip 30 is turned on to charge, and the processor 40 continuously outputs the second control signal to keep the switch 10 at the second switch position; if the charging interface 60 is not connected to the external power supply, the charging chip 30 is not input and cannot be charged, and the processor 40 outputs a low-level signal to switch the switch 10 back to the first switch position after 500 ms. The processor 40 may determine whether the charging interface 60 is plugged into an external power source by acquiring an input of the charging chip 30 and output a corresponding control signal. The second control signal is preferably a high level signal, and when the control pin 4 receives the high level signal sent by the switch control pin GPIO2, the switch 10 is immediately switched to the second switch position. The processor 40 outputs a switching control signal according to the detection result of the wearing detection chip 20, and can accurately connect the switch 10 to the corresponding position, so that the function of the charging column is fully exerted, and meanwhile, the problems that the intelligent wearing equipment cannot be charged normally or the wearing detection is carried out due to incorrect switching action of the switch 10 are avoided.
In the embodiment of the present invention, the wear detection circuit further includes a voltage detection branch 50, where the voltage detection branch 50 is connected to an input terminal of the charging chip 30, and is used for detecting a charging voltage of the charging chip 30. The processor 40 has a voltage detection pin GPIO4 connected to the voltage detection branch 50, and the voltage detection pin GPIO4 detects and acquires the charging voltage of the charging chip 30 through the voltage detection branch 50. The processor 40 determines whether the charging interface is connected to an external power source for charging according to the charging voltage of the charging chip 30, and outputs a corresponding switching control signal to control the switching action of the switch 10 according to the determination result. When the charging voltage is at the high level, it indicates that the charging interface 60 is connected to the external power supply, and the charging chip performs the charging operation, so that the switch control pin GPIO2 of the processor 40 outputs a continuous second control signal, so that the switch 10 is always at the second switch position to connect the charging column and the charging chip 30, and charge the intelligent wearable device; when the charging voltage is at the low level, it is indicated that the charging interface 60 is not connected to the external power supply, and the charging chip 30 cannot perform the charging operation, so that the switch control pin GPIO2 of the processor 40 outputs the continuous first control signal to switch the switch 10 to the first switch position.
Specifically, the voltage detection branch 50 includes a second resistor R2 and a third resistor R3, a first end of the second resistor R2 is connected to the input end of the charging chip 30, a second end of the second resistor R2 is connected to the first end of the third resistor R3, a second end of the third resistor R3 is grounded, and the voltage detection pin GPIO4 of the processor 40 is connected to the second end of the second resistor R2. The voltage detection pin GPIO4 of the processor 40 obtains the charging voltage of the charging chip 30 through the voltage division of the second resistor R2, when the charging chip 30 charges, the charging voltage of the charging chip 30 is at a high level, and when the charging chip is not charged, the charging voltage is at a low level, and the processor 40 can know the working state of the charging chip 30 by judging the charging voltage, so as to output a corresponding switching control signal. Through setting up voltage detection branch 50, the switching action of change over switch 10 can be controlled according to the charging voltage 30 of charging chip to processor 40 to in time will charge the post and be connected to wearing detection chip 20 after the completion of charging, guarantee to wear the normal work of detection chip 20.
The invention also provides intelligent wearing equipment, which comprises a storage battery, and the intelligent wearing equipment further comprises a wearing detection circuit in the embodiment, wherein a charging interface 60 of the wearing detection circuit is connected with the storage battery through a change-over switch 10, and the storage battery is charged by using a charging chip 30. The smart wearable device may be a smart watch, a smart bracelet, a bluetooth headset, or the like, specifically an electronic device worn on a human body and having a charging interface 60 that can be charged. Preferably, the change-over switch 10 is an electronically controlled switch. The power pin 5 of the change-over switch 10 is connected with the power VSYS of the intelligent wearing equipment, so that the power supply of the change-over switch 10 is ensured, the automatic change-over connection action is realized, the change-over connection can be performed immediately, and the problems caused by the adoption of a manual change-over switch, such as the problem that the function of the intelligent wearing equipment is invalid due to untimely change-over, are avoided.
In summary, through setting up change over switch with the interface connection that charges of intelligent wearing equipment to wear detection chip, make the charging post of interface that charges wear the detection as the detection polar plate of wearing detection chip to omitted and set up special sheetmetal and wear the detection, simplified the part equipment complexity of intelligent wearing equipment, reduced the cost of intelligent wearing equipment. Meanwhile, the change-over switch can also perform a change-over action to connect the charging column to the charging chip, so that the charging interface completes a charging function. In addition, the processor outputs a switching control signal to control the switching action of the change-over switch according to the detection result of the wearing detection chip and the charging voltage of the charging chip, so that the switching action of the change-over switch is more accurate and timely, and the working accuracy of the charging interface is ensured.
The foregoing is merely a specific embodiment of the invention and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the invention more fully, and that the scope of the invention is defined by the appended claims.
Claims (7)
1. A wear detection circuit, the circuit comprising a charging interface, a change-over switch and a wear detection chip, wherein the charging interface comprises a charging post, the change-over switch has a first switch position for connecting the wear detection chip and the charging post so that the charging post is used as a detection polar plate of the wear detection chip;
the circuit further comprises a charging chip, and the change-over switch is further provided with a second switch position for connecting the charging chip and the charging column;
the switch has a control pin that controls the switch to switch between the first switch position and the second switch position;
the circuit also includes a processor having a switch control pin connected to the control pin;
the processor is provided with a detection pin connected with the wearing detection chip,
the processor obtains a detection result of the wearing detection chip through the detection pin;
when the detection result of the wearing detection chip is that the wearing detection chip is worn, the switch control pin outputs a first control signal to the control pin so that the change-over switch is positioned at a first switch position;
when the detection result of the wearing detection chip is that the wearing detection chip is not worn, the switch control pin outputs a second control signal to the control pin every preset time so that the change-over switch is positioned at a second switch position.
2. The circuit of claim 1, further comprising a voltage detection branch for detecting whether an external power supply is connected when the detection result of the wearing detection chip is that the circuit is not worn;
the processor is provided with a voltage detection pin connected with the voltage detection branch; the voltage detection pin detects and acquires the charging voltage of the charging chip through the voltage detection branch;
when the charging voltage is at a high level, the switch control pin outputs a second control signal;
when the charging voltage is at a low level, the switch control pin outputs a first control signal.
3. The circuit of claim 2, wherein the charging post comprises a first charging post and a second charging post, the first charging post being connected to a common pin of the switch, the second charging post being grounded.
4. The circuit of claim 3, further comprising a first resistor, a first end of the first resistor being grounded, a second end of the first resistor being connected to a control pin of the switch.
5. The circuit of claim 4, wherein the voltage detection branch comprises a second resistor and a third resistor;
the first end of the second resistor is connected with the input end of the charging chip, the second end of the second resistor is connected with the first end of the third resistor, and the second end of the third resistor is grounded;
the voltage detection pin of the processor is connected with the second end of the second resistor.
6. An intelligent wearable device comprising a storage battery, characterized in that the intelligent wearable device further comprises a wear detection circuit as claimed in any one of claims 1 to 5, wherein a charging interface of the wear detection circuit is connected with the storage battery through the change-over switch, and the storage battery is charged by the charging chip.
7. The smart wearable device of claim 6, wherein the switch is an electronically controlled switch.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810023448.3A CN108051861B (en) | 2018-01-10 | 2018-01-10 | Wear detection circuitry and intelligent wearing equipment |
| CN201820038450.3U CN208076736U (en) | 2018-01-10 | 2018-01-10 | A kind of wearing detection circuit and intelligent wearable device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810023448.3A CN108051861B (en) | 2018-01-10 | 2018-01-10 | Wear detection circuitry and intelligent wearing equipment |
| CN201820038450.3U CN208076736U (en) | 2018-01-10 | 2018-01-10 | A kind of wearing detection circuit and intelligent wearable device |
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| Publication Number | Publication Date |
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| CN108051861A CN108051861A (en) | 2018-05-18 |
| CN108051861B true CN108051861B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810023448.3A Active CN108051861B (en) | 2018-01-10 | 2018-01-10 | Wear detection circuitry and intelligent wearing equipment |
| CN201820038450.3U Active CN208076736U (en) | 2018-01-10 | 2018-01-10 | A kind of wearing detection circuit and intelligent wearable device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820038450.3U Active CN208076736U (en) | 2018-01-10 | 2018-01-10 | A kind of wearing detection circuit and intelligent wearable device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051861B (en) * | 2018-01-10 | 2024-01-30 | 歌尔科技有限公司 | Wear detection circuitry and intelligent wearing equipment |
| CN108936986B (en) * | 2018-08-14 | 2024-04-05 | 歌尔科技有限公司 | Intelligent bracelet with body surface temperature detection function |
| CN112568906B (en) * | 2019-09-29 | 2023-05-12 | Oppo广东移动通信有限公司 | Detection circuit, wearable device detection method and wearable device |
| CN111245055B (en) * | 2020-02-27 | 2022-05-20 | 维沃移动通信有限公司 | Circuit control device and method |
| JP6865879B1 (en) * | 2020-09-07 | 2021-04-28 | 日本たばこ産業株式会社 | Aerosol generation system, aspirator controller, and power supply |
| CN112494047B (en) * | 2020-11-23 | 2022-12-02 | 歌尔科技有限公司 | Multifunctional multiplexing circuit and intelligent wearable device |
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| EP2584471A1 (en) * | 2011-10-21 | 2013-04-24 | Huawei Device Co., Ltd. | Method and terminal for selecting internal circuit according to USB interface status |
| JP2014094097A (en) * | 2012-11-08 | 2014-05-22 | Seiko Instruments Inc | Biological information detection device and biological information detection method |
| CN206041569U (en) * | 2016-09-02 | 2017-03-22 | 上海心书科技发展有限公司 | Novel electrocardio signal acquisition device electrode type charge device |
| CN208076736U (en) * | 2018-01-10 | 2018-11-09 | 歌尔科技有限公司 | A kind of wearing detection circuit and intelligent wearable device |
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- 2018-01-10 CN CN201810023448.3A patent/CN108051861B/en active Active
- 2018-01-10 CN CN201820038450.3U patent/CN208076736U/en active Active
Patent Citations (4)
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|---|---|---|---|---|
| EP2584471A1 (en) * | 2011-10-21 | 2013-04-24 | Huawei Device Co., Ltd. | Method and terminal for selecting internal circuit according to USB interface status |
| JP2014094097A (en) * | 2012-11-08 | 2014-05-22 | Seiko Instruments Inc | Biological information detection device and biological information detection method |
| CN206041569U (en) * | 2016-09-02 | 2017-03-22 | 上海心书科技发展有限公司 | Novel electrocardio signal acquisition device electrode type charge device |
| CN208076736U (en) * | 2018-01-10 | 2018-11-09 | 歌尔科技有限公司 | A kind of wearing detection circuit and intelligent wearable device |
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| CN108051861A (en) | 2018-05-18 |
| CN208076736U (en) | 2018-11-09 |
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