CN106972872B - A connecting circuit and disconnect-type conversation bracelet for disconnect-type conversation bracelet - Google Patents
A connecting circuit and disconnect-type conversation bracelet for disconnect-type conversation bracelet Download PDFInfo
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- CN106972872B CN106972872B CN201710283434.0A CN201710283434A CN106972872B CN 106972872 B CN106972872 B CN 106972872B CN 201710283434 A CN201710283434 A CN 201710283434A CN 106972872 B CN106972872 B CN 106972872B
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- heart rate
- module
- contact
- rate signal
- connection circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3883—Arrangements for mounting batteries or battery chargers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
- H04B2001/3861—Transceivers carried on the body, e.g. in helmets carried in a hand or on fingers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a connecting circuit for a separated type conversation bracelet and the separated type conversation bracelet, wherein the connecting circuit comprises a first connecting circuit and a second connecting circuit, a first contact is connected with a power supply voltage output end through a first filtering module, a heart rate detection module is arranged for collecting a first heart rate signal, a modulation module is arranged for modulating the first heart rate signal to obtain a modulated heart rate signal, and the modulated heart rate signal is transmitted to the first contact through a first capacitor; the second contact is connected with the voltage output end of the battery through the second filtering module, the second contact is connected with the input end of the demodulation module through the second capacitor, and the demodulation module is set to demodulate a second heart rate signal input by the input end to obtain a demodulated heart rate signal and transmit the demodulated heart rate signal to the heart rate output end. Like this, through multiplexing first contact and second contact, can realize the reduction of the contact quantity of connecting bluetooth headset and bracelet in disconnect-type conversation bracelet.
Description
Technical Field
The invention relates to the technical field of circuit design, in particular to a connecting circuit for a split type call bracelet and the split type call bracelet.
Background
The separated communication bracelet combines a Bluetooth earphone and an intelligent bracelet together to realize functions of communication, information display and the like together; the combination of the two needs to be connected together in a circuit mode so as to share the state information.
The existing separated communication bracelet mainly comprises a bracelet and a Bluetooth headset, and is shown in figure 1, wherein a connecting circuit for the separated communication bracelet comprises a first connecting circuit arranged on the bracelet and a second connecting circuit arranged on the Bluetooth headset. The contacts pin1, SCL1, SDA1, INT1, pin3 of the first connection circuit are correspondingly connected to the contacts pin2, SCL2, SDA2, INT2, pin4 of the second connection circuit. After the contact pin1 of the first connection circuit is connected with the contact pin2 of the second connection circuit, the battery of the bluetooth headset supplies power for the heart rate detection module in the bracelet. After the contacts SCL1, SDA1, INT1 of the first connection circuit and the contacts SCL2, SDA2, INT2 of the second connection circuit are correspondingly connected, the heart rate value detected by the heart rate detection module is transmitted to the bluetooth headset. After the contact pin3 of first connecting circuit and the contact pin4 of second connecting circuit are connected, can guarantee that bracelet and bluetooth headset are earthed jointly.
Because the contact that sets up on the disconnect-type conversation bracelet is too much, not only influence the outward appearance of disconnect-type conversation bracelet, still influence the reliability of corresponding contact connection. Therefore, it is very valuable to provide a connection circuit that reduces the number of contacts of the separated talking bracelet.
Disclosure of Invention
An object of the present invention is to provide a new technical solution of a connection circuit for reducing the number of contacts of a separated talking bracelet.
According to a first aspect of the present invention, a connection circuit for a separated type conversation bracelet is provided, which includes a first connection circuit disposed on the bracelet and a second connection circuit disposed on a bluetooth headset, wherein the first connection circuit includes a heart rate detection module, a modulation module, a first filtering module, a first capacitor, a supply voltage output end and a first contact, and the second connection circuit includes a demodulation module, a second filtering module, a second capacitor, a battery voltage output end, a heart rate output end and a second contact for connecting with the first contact; the first contact is connected with the power supply voltage output end through the first filtering module, the heart rate detecting module is arranged to collect a first heart rate signal, the modulating module is arranged to modulate the first heart rate signal to obtain a modulated heart rate signal, and the modulated heart rate signal is transmitted to the first contact through the first capacitor; the second contact is connected with the battery voltage output end through the second filtering module, the second contact is connected with the input end of the demodulation module through the second capacitor, and the demodulation module is configured to demodulate a second heart rate signal input by the input end to obtain a demodulated heart rate signal and transmit the demodulated heart rate signal to the heart rate output end.
Optionally, the first connection circuit further includes a first voltage stabilization module, and the first voltage stabilization module is configured to perform voltage stabilization on the supply voltage output by the supply voltage output terminal to obtain a first voltage stabilization voltage, so as to supply power to the heart rate detection module.
Optionally, the first connection circuit further includes a second voltage stabilization module, where the second voltage stabilization module is configured to perform voltage stabilization on the power supply voltage output by the power supply voltage output terminal to obtain a second voltage stabilization voltage, so as to supply power to the modulation module.
Optionally, the second connection circuit further includes a processing module, and the processing module is configured to process the demodulated heart rate signal output by the heart rate output terminal to obtain a heart rate value.
Optionally, the second connection circuit further comprises a power switch, and the power switch is connected between the battery voltage output terminal and the second contact.
Optionally, the processing module is further configured to control a state of the power switch.
Optionally, the second connection circuit further comprises a display screen configured to display the heart rate value.
Optionally, the second connection circuit further includes an input module for receiving the heart rate detection request input by the user, and the input module is connected to the processing module.
Optionally, the first connection circuit further includes a first ground terminal and a third contact, and the second connection circuit further includes a second ground terminal and a fourth contact for connecting with the third contact; the first ground terminal is connected to the third contact, and the second ground terminal is connected to the fourth contact.
According to a second aspect of the present invention, there is provided a split-type talk bracelet comprising the connection circuit according to the first aspect of the present invention.
The invention has the beneficial effects that the first contact and the second contact are multiplexed through the connecting circuit, so that the connecting circuit can transmit battery voltage and a heart rate signal, the number of the contacts for connecting the Bluetooth headset and the bracelet in the separated communication bracelet can be reduced, and the appearance of the separated communication bracelet can be effectively improved. The waterproof performance of the separation conversation bracelet can also be improved. Through the embodiment of the invention, the reliability of the contact connection between the Bluetooth headset and the intelligent bracelet can be improved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic circuit diagram of an implementation structure of a conventional connection circuit for a detachable phone bracelet;
fig. 2 is a block schematic diagram of an implementation structure of a connection circuit for a split-type call bracelet according to the invention;
fig. 3 is a block schematic diagram of another implementation structure of the connection circuit for the separated phone bracelet according to the invention;
description of reference numerals:
100-a first connection circuit; 200-a second connection circuit;
u1-heart rate detection module; u2-modulation module;
u3 — a first filtering module; u4-demodulation module;
u5 — a second filtering module; u6 — first voltage stabilization module;
u7-a second voltage stabilization module; u8-processing module;
u9-display screen; u10-input module;
s1-switch; c1, C2-capacitance;
VCC 1-supply voltage output; VCC 2-battery voltage output;
GND1, GND 2-ground; out 1-demodulated heart rate output;
P1-P4, pin 1-pin 4, SCL1, SCL2, SDA1, SDA2, INT1, INT 2-contacts.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In order to solve the problem that the number of the connecting contacts of the separated communication bracelet is too large and affects the appearance of the product and the reliability of the contact connection in the prior art, a connecting circuit for the separated communication bracelet is provided, as shown in fig. 2, the connecting circuit comprises a first connecting circuit 100 arranged on the bracelet and a second connecting circuit arranged on the Bluetooth headset. The first connection circuit 100 comprises a heart rate detection module U1, a modulation module U2, a first filtering module U3, a first capacitor C1, a supply voltage output VCC1, and a first contact P1. The second connection circuit 200 includes a demodulation module U4, a second filtering module U5, a second capacitor C2, a battery voltage output terminal VCC2, a heart rate output terminal out1, and a second contact P2 for connecting with the first contact P1. The first contact point P1 is connected with the power supply voltage output terminal VCC1 through the first filter module U3, the heart rate detection module U1 is set to collect a first heart rate signal, the modulation module U2 is set to modulate the first heart rate signal, a modulation heart rate signal is obtained, and the modulation heart rate signal is transmitted to the first contact point P1 through the first capacitor C1. The second contact P2 is connected to the battery voltage output terminal VCC2 via a second filtering module U5, the second contact P2 is connected to the input terminal in1 of the demodulation module U4 via a second capacitor C2, and the demodulation module is configured to demodulate the second heart rate signal input by the input terminal in1, obtain a demodulated heart rate signal, and transmit the demodulated heart rate signal to the heart rate output terminal out 1. Wherein, under the condition that the first contact point P1 and the second contact point P2 are connected, the second heart rate signal is the modulation heart rate signal.
When the bluetooth headset is loaded into the bracelet, the first contact P1 and the second contact P2 are connected and conducted, and the battery voltage output by the battery voltage output terminal VCC2 is transmitted to the first contact P1 through the second contact P2. The supply voltage output VCC1 will deliver a supply voltage equal to the battery voltage. The power supply voltage is used for supplying power to the heart rate detection module U1 and the modulation module U2. The heart rate detection module U1 collects the heart rate of the user and outputs a first heart rate signal. The modulation module U2 modulates the first heart rate signal, specifically, modulates the frequency of the first heart rate signal to a set frequency, which may be, for example, 1MHz, to obtain a modulated heart rate signal, and outputs the modulated heart rate signal to the first contact P1. The battery voltage is a direct current signal, the modulation heart rate signal is an alternating current signal, and in order to prevent the modulation heart rate signal from interfering with the power supply voltage, the first filtering module U3 may perform filtering processing on the battery voltage and the modulation heart rate signal of the first contact P1, so that the alternating current modulation heart rate signal cannot be transmitted to the power supply voltage output terminal VCC1, and the alternating current adjustment heart rate signal is prevented from damaging the heart rate detection module U1 and the modulation module U2; at the same time, the battery voltage received by the first contact P1 is enabled to be transmitted to the supply voltage output VCC 1. The modulated heart rate signal will be transmitted through the first contact P1 to the second contact P2, which is the second heart rate signal. Since the second heart rate signal is also an ac signal with a set frequency, the second filtering module U5 may filter the battery voltage at the second contact P2 and the second heart rate signal, so that the second heart rate signal cannot be transmitted to the battery voltage output terminal VCC2, thereby preventing the ac second heart rate signal from damaging the battery; at the same time, the battery voltage output from the battery voltage output terminal VCC2 is allowed to be transmitted to the second contact point P2. The first filter circuit U3 and the second filter circuit U4 may be low pass filter circuits to enable filtering out the modulated heart rate signal and the second heart rate signal at a set frequency. Specifically, the first filter circuit U3 and the second filter circuit U4 may be provided by, for example, any low-pass filter having a cutoff frequency lower than the set frequency. Meanwhile, the direct current blocking effect of the capacitors C1 and C2 is utilized to prevent the direct current battery voltage from causing the saturation of the modulation module U2 and the demodulation module U4, and the separation between the direct current battery voltage and the alternating current heart rate signal is realized. The modulated heart rate signal is transmitted to the demodulation module U4 by the action of the communication of the capacitors C1 and C2. The demodulated heart rate signal obtained by the demodulation module U4 after demodulation processing should have the same frequency as the first heart rate signal.
Therefore, the connecting circuit for the separate type communication bracelet not only can transmit the battery voltage but also can transmit the heart rate signal by multiplexing the first contact and the second contact, so that the number of the contacts for connecting the Bluetooth headset and the bracelet in the separate type communication bracelet can be reduced, and the appearance of the separate type communication bracelet can be effectively improved. The waterproof performance of the separation conversation bracelet can also be improved. Through the embodiment of the invention, the reliability of the contact connection between the Bluetooth headset and the intelligent bracelet can be improved.
Since the supply voltages of the heart rate detecting module U1 and the modulating module U2 may be different from the supply voltage output by the supply voltage output terminal VCC1, as shown in fig. 3, the first connection circuit 100 further includes a first voltage stabilizing module U6, and the first voltage stabilizing module U6 is configured to perform voltage stabilization on the supply voltage output by the supply voltage output terminal VCC1, so as to obtain a first voltage stabilizing voltage for supplying power to the heart rate detecting module U1.
Further, the first connection circuit 100 further includes a second voltage stabilization module U7, and the second voltage stabilization module U7 is configured to perform voltage stabilization on the power supply voltage output by the power supply voltage output terminal VCC1, so as to obtain a second stabilized voltage for supplying power to the modulation module U2.
In an embodiment of the invention, as shown in fig. 3, the second connection circuit 200 further includes a processing module U8, and the processing module U8 is configured to process the demodulated heart rate signal at the output of the heart rate output terminal out1 to obtain a heart rate value. The processing module U8 may be provided by a processor chip. The processing module U8 may calculate a heart rate value from the frequency of the demodulated heart rate signal. The processing module U8 may be provided by an MCU chip, for example.
Further, the second connection circuit 200 further includes a display screen U9, and the display screen U9 is connected to the processing module U8. The processing module U8 is arranged to send the calculated heart rate value to the display screen U9 for display.
On this basis, the second connection circuit 200 further includes a power switch S1, and the power switch S1 is connected between the battery voltage output terminal VCC2 and the second contact P2.
Still further, the processing module U8 is also configured to control the state of the power switch S1. Specifically, the processing module U8 may control the state of the power switch S1 according to the heart rate detection requirement of the user.
On this basis, the second connection circuit 200 further comprises an input module U10 for receiving a heart rate detection request input by a user, and the input module U10 is connected with the processing module U8. When the input module U10 receives a heart rate detection request input by a user, the processing module U8 controls the power switch S1 to be turned on, so that the battery of the bluetooth headset supplies power to the heart rate detection module U1 and the modulation module U2, and the bluetooth headset normally works. The display screen U9 and the input module U10 may be provided by a touch-sensitive display screen, for example.
Then, the power switch S1 can be provided by a PMOS transistor, for example, the gate of the PMOS transistor is connected to the control signal output terminal of the processing module U8, the source of the PMOS transistor is connected to the battery voltage output terminal VCC2, and the drain of the PMOS transistor is connected to the second contact.
In another embodiment of the present invention, the first connection circuit 100 further includes a first ground GND1 and a third contact P3, and the second connection circuit 200 further includes a second ground GND2 and a fourth contact P4 for connection with the third contact P3; the first ground GND1 is connected to the third contact P3, and the second ground GND2 is connected to the fourth contact P4.
When the bluetooth headset loads to the bracelet in, third contact P3 and fourth contact P4 correspond and connect to guarantee bluetooth headset and bracelet are earthed together.
The invention also provides a separated communication bracelet, which comprises the connecting circuit for the separated communication bracelet.
Specifically, the first connection circuit 100 is disposed on the bracelet, and the second connection circuit 200 is disposed on the bluetooth headset, so that the separate type communication bracelet of the present invention can transmit both the battery voltage and the heart rate signal by multiplexing the first contact and the second contact, thereby reducing the number of contacts connecting the bluetooth headset and the bracelet in the separate type communication bracelet and effectively improving the appearance of the separate type communication bracelet. The waterproof performance of the separation conversation bracelet can also be improved. Through the embodiment of the invention, the reliability of the contact connection between the Bluetooth headset and the intelligent bracelet can be improved.
The above embodiments mainly focus on differences from other embodiments, but it should be clear to those skilled in the art that the above embodiments can be used alone or in combination with each other as needed.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A connecting circuit for a separated communication bracelet is characterized by comprising a first connecting circuit arranged on the bracelet and a second connecting circuit arranged on a Bluetooth headset, wherein the first connecting circuit comprises a heart rate detection module, a modulation module, a first filtering module, a first capacitor, a power supply voltage output end and a first contact, and the second connecting circuit comprises a demodulation module, a second filtering module, a second capacitor, a battery voltage output end, a heart rate output end and a second contact connected with the first contact; the first contact is connected with the power supply voltage output end through the first filtering module, the heart rate detection module is set to collect a first heart rate signal, the modulation module is set to modulate the first heart rate signal to obtain a modulated heart rate signal, and the modulated heart rate signal is transmitted to the first contact through the first capacitor; the second contact is connected with the battery voltage output end through the second filtering module, the second contact is connected with the input end of the demodulation module through the second capacitor, the demodulation module is configured to demodulate a second heart rate signal input by the input end to obtain a demodulated heart rate signal, and transmit the demodulated heart rate signal to the heart rate output end, wherein, under the condition that the first contact and the second contact are connected, the second heart rate signal is the modulation heart rate signal, the first filtering module and the second filtering module are low-pass filtering circuits, the modulation heart rate signal and the second heart rate signal can be filtered, and the direct current separation between the battery voltage and the alternating current heart rate signal is realized by utilizing the direct current blocking effect of the first capacitor and the second capacitor.
2. The connection circuit according to claim 1, wherein the first connection circuit further comprises a first voltage stabilization module, and the first voltage stabilization module is configured to stabilize the supply voltage output by the supply voltage output terminal to obtain a first stabilized voltage for supplying power to the heart rate detection module.
3. The connection circuit according to claim 1, wherein the first connection circuit further comprises a second voltage stabilization module, and the second voltage stabilization module is configured to stabilize the supply voltage output by the supply voltage output terminal to obtain a second stabilized voltage for supplying power to the modulation module.
4. The connection circuit of claim 1, wherein the second connection circuit further comprises a processing module configured to process the demodulated heart rate signal output from the heart rate output to obtain a heart rate value.
5. The connection circuit of claim 4, wherein the second connection circuit further comprises a power switch connected between the battery voltage output and the second contact.
6. The connection circuit of claim 5, wherein the processing module is further configured to control a state of the power switch.
7. The connection circuit of claim 4, wherein the second connection circuit further comprises a display screen configured to display the heart rate value.
8. The connection circuit of claim 4, wherein the second connection circuit further comprises an input module for receiving a heart rate detection request input by a user, the input module being connected to the processing module.
9. The connecting circuit of claim 1, wherein the first connecting circuit further comprises a first ground and a third contact, and the second connecting circuit further comprises a second ground and a fourth contact for connecting with the third contact; the first ground terminal is connected to the third contact, and the second ground terminal is connected to the fourth contact.
10. A split-type talking bracelet comprising a connection circuit according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283434.0A CN106972872B (en) | 2017-04-26 | 2017-04-26 | A connecting circuit and disconnect-type conversation bracelet for disconnect-type conversation bracelet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283434.0A CN106972872B (en) | 2017-04-26 | 2017-04-26 | A connecting circuit and disconnect-type conversation bracelet for disconnect-type conversation bracelet |
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| CN106972872A CN106972872A (en) | 2017-07-21 |
| CN106972872B true CN106972872B (en) | 2022-06-14 |
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| CN201710283434.0A Active CN106972872B (en) | 2017-04-26 | 2017-04-26 | A connecting circuit and disconnect-type conversation bracelet for disconnect-type conversation bracelet |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111973168A (en) * | 2020-08-27 | 2020-11-24 | 青岛歌尔智能传感器有限公司 | Heart rate module, electronic equipment and intelligent wearing equipment of gathering heart rate |
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| CN203377648U (en) * | 2013-08-01 | 2014-01-01 | 卢小平 | Improved circuit sharing contact in triggering and charging |
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| CN105634069A (en) * | 2016-02-23 | 2016-06-01 | 深圳市秦通科技有限公司 | Wearable electronic equipment and combination of wearable electronic equipment and Bluetooth earphone |
| WO2016099316A1 (en) * | 2014-12-16 | 2016-06-23 | Fomkin Sergei Vyacheslavovich | Hardware-software complex |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9332338B2 (en) * | 2013-12-25 | 2016-05-03 | 1More Inc. | Bluetooth communication bracelet |
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|---|---|---|---|---|
| CN202872406U (en) * | 2012-09-19 | 2013-04-10 | 青岛海信移动通信技术股份有限公司 | Interface multiplexing circuit and mobile terminal |
| CN203377648U (en) * | 2013-08-01 | 2014-01-01 | 卢小平 | Improved circuit sharing contact in triggering and charging |
| CN103815628A (en) * | 2014-01-24 | 2014-05-28 | 加一联创电子科技有限公司 | Bluetooth communication bracelet |
| CN105611982A (en) * | 2014-03-25 | 2016-05-25 | 华为终端有限公司 | Battery, communications terminal, and communications system |
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| CN106972872A (en) | 2017-07-21 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yuan Jingang Inventor before: Ren Sikui |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |