CN206348621U - A kind of pressure test device and Intelligent worn device - Google Patents
A kind of pressure test device and Intelligent worn device Download PDFInfo
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- CN206348621U CN206348621U CN201621253438.1U CN201621253438U CN206348621U CN 206348621 U CN206348621 U CN 206348621U CN 201621253438 U CN201621253438 U CN 201621253438U CN 206348621 U CN206348621 U CN 206348621U
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- temperature
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- air pressure
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Abstract
The utility model discloses a kind of pressure test device and Intelligent worn device.Described device includes：Temperature detecting module, the central processing module is sent to for obtaining the voltage signal of simulated environment temperature；The air pressure detection module, the central processing module is sent to for detecting ambient pressure, and by atmospheric pressure value；The central processing module, for controlling the temperature detecting module and the air pressure detection module gathered data simultaneously, and the voltage signal of the simulated environment temperature received is converted into corresponding temperature value and exported, and for correcting the atmospheric pressure value received according to the temperature value, and the atmospheric pressure value after correction is exported.It can be seen that, the utility model increase temperature detecting module can obtain the temperature of surrounding environment, assist gas pressure detection simultaneously obtains accurate atmospheric pressure value, excludes the influence of temperature factor, and auxiliary user becomes more apparent upon motion state and surrounding environment, various moving scenes are can adapt to, beneficial to enhancing Consumer's Experience.
Description
Technical field
The utility model is related to air pressure detection technique field, and more particularly to a kind of pressure test device and intelligence wearing are set
It is standby.
Background technology
As people pursue the rise of healthy, "sport for all", various smart motions wearing products are occurred in that.These are intelligently transported
Dynamic wearing class product can realize the functions such as meter step, sleep, consumption calorie, but for detection ambient air pressure and display height
Message context concern is less.In the motion such as building, climbing, mountain-climbing is climbed, the scheme such as simple meter step or consumption calorie without
Method meets demand, and user needs to know atmospheric pressure value and residing height in real time；Particularly in the field environment, user can be with root
Fast changing weather, more preferable synkinesia are predicted in time according to ambient air pressure transient changing situation.Although of the prior art
Baroceptor can detect the air pressure of surrounding environment, and can obtain height change information according to the atmospheric pressure value of different periods.But
The temperature for being surrounding environment is also to influence a key factor of air pressure, and temperature change is larger, even at sustained height, air pressure
Value may also have larger floating, for example, in human body wearable product, human body temperature can be transmitted to interiors of products, influence is internal
The pressure of gas, so that cause air pressure detection to have larger fluctuation, and ambient pressure will not acutely change.So utilize conventional gas
Pressure sensor can not obtain accurate atmospheric pressure value, be unfavorable for the usage experience of user.
The content of the invention
In view of baroceptor of the prior art can not obtain accurate atmospheric pressure value because of temperature factor, it is unfavorable for user's
The problem of usage experience, it is proposed that a kind of pressure test device of the present utility model and Intelligent worn device, to solve or extremely
Partially solve the above problems.
According to one side of the present utility model there is provided a kind of pressure test device, described device includes：Temperature detection
Module, air pressure detection module, central processing module；
The temperature detecting module, the center processing mould is sent to for obtaining the voltage signal of simulated environment temperature
Block；
The air pressure detection module, the central processing module is sent to for detecting ambient pressure, and by atmospheric pressure value；
The central processing module, for controlling the temperature detecting module and the air pressure detection module while gathering number
According to, and the voltage signal of the simulated environment temperature received is converted into corresponding temperature value and exported, and according to the temperature
The atmospheric pressure value that angle value correction is received, and the atmospheric pressure value after correction is exported.
According to another aspect of the present utility model, there is provided a kind of Intelligent worn device, it is characterised in that the intelligence
Wearable device includes display screen and foregoing pressure test device, the temperature of the environment temperature of the pressure test device output
Atmospheric pressure value after angle value and correction is in the display screen display.
In summary, the utility model detects the air pressure of surrounding environment using air pressure detection module, while being examined using temperature
The temperature that module detects surrounding environment is surveyed, then according to the temperature correction atmospheric pressure value of surrounding environment, and by the atmospheric pressure value after correction
Output.It can be seen that, the utility model increase temperature detecting module can not only obtain the temperature of surrounding environment in time, aid in simultaneously
Air pressure detection module carries out accurate air pressure detection, and the atmospheric pressure value after correction eliminates the shadow of temperature factor to a certain extent
Ring, more accurately aid in user to understand motion state and surrounding environment, can adapt to various moving scenes, beneficial to enhancing user
Experience.
Brief description of the drawings
A kind of pressure test device schematic diagram that Fig. 1 provides for the utility model one embodiment；
A kind of circuit diagram for pressure test device that Fig. 2 provides for the utility model one embodiment；
A kind of Intelligent worn device schematic diagram that Fig. 3 provides for the utility model one embodiment；
A kind of Intelligent worn device schematic diagram that Fig. 4 provides for the utility model another embodiment.
Embodiment
Mentality of designing of the present utility model is：In view of baroceptor of the prior art can not obtain essence because of temperature factor
True atmospheric pressure value, the problem of being unfavorable for the usage experience of user.The utility model increases temperature detecting module, and mould is detected with air pressure
Block is while gathered data, the ambient temperature data then gathered according to temperature detecting module corrects the gas that air pressure detection module is gathered
Pressure value, and the atmospheric pressure value after correction is exported, the atmospheric pressure value after the correction eliminates the influence of temperature factor to a certain extent,
More accurately auxiliary user understands motion state and surrounding environment, can adapt to various moving scenes, beneficial to enhancing user's body
Test.To make the purpose of this utility model, technical scheme and advantage clearer, the utility model is implemented below in conjunction with accompanying drawing
Mode is described in further detail.
A kind of pressure test device schematic diagram that Fig. 1 provides for the utility model one embodiment.As shown in figure 1, the gas
Pressure detection means 100 includes：Temperature detecting module 110, air pressure detection module 120, central processing module 130.
Temperature detecting module 110, central processing module 130 is sent to for obtaining the voltage signal of simulated environment temperature.
Air pressure detection module 120, central processing module 130 is sent to for detecting ambient pressure, and by atmospheric pressure value.Central processing module
130, as system control, information and the data processing centre of whole device, for controlling temperature detecting module and air pressure to detect
Module gathered data, and the voltage signal of the simulated environment temperature received is converted into corresponding temperature value and exported simultaneously,
And the atmospheric pressure value received is corrected according to temperature value, and the atmospheric pressure value after correction is exported.Here, temperature detecting module is detected
What is obtained is the voltage signal of a simulated environment temperature, it is necessary to be converted into the voltage signal using central processing module 130
Corresponding temperature value, on the one hand for output temperature value, so that user is checked；On the other hand the correction of atmospheric pressure value is carried out.
Since it is desired that to atmospheric pressure value exclude the correction of temperature factor, need to enter trip temperature simultaneously when atmospheric pressure value detection is carried out
Detection.
It can be seen that, the utility model increase temperature detecting module can not only obtain the temperature of surrounding environment in time, while auxiliary
Air pressure detection module is helped to carry out accurate air pressure detection, the atmospheric pressure value after correction eliminates the shadow of temperature factor to a certain extent
Ring, more accurately aid in user to understand motion state and surrounding environment, can adapt to various moving scenes, beneficial to enhancing user
Experience.
A kind of system circuit diagram for pressure test device that Fig. 2 provides for the utility model one embodiment.Such as Fig. 2
Shown, in one embodiment of the present utility model, temperature detecting module 110 includes：First pull down resistor R1, the first power supply are opened
Close Q1, the second semistor R2, the 3rd negative tempperature coefficient thermistor R3；Wherein, the first power switch Q1 is
Enhanced NMOS tube.
First pull down resistor R1 first end ground connection GND, the second end and central processing module MCU input/output interface
I/O_1 and the first power switch Q1 grid G connection；The second semistor R2 electricity of first end connection first
Source switch Q1 drain D, the second end connection system power supply Vsys；3rd negative tempperature coefficient thermistor R3 first end connection the
One power switch Q1 source S, the second end ground connection GND；First power switch Q1 source S connection central processing module MCU's
Temperature detection interface Tem_Det.
In one embodiment of the present utility model, air pressure detection module 120 includes the 4th pull down resistor R4, second source
Switch Q2, the first decoupling capacitor C1, barometer P1；Wherein, second source switch Q2 is enhanced NMOS tube, wherein decoupling capacitor
C1 can prevent the fluctuation of input air pressure meter P1 voltage.
4th pull down resistor R4 first end ground connection GND, the second end and central processing module MCU input/output interface
I/O_1 and second source switch Q2 grid G connection；Second source switch Q2 drain D connection system power supply Vsys, second
Power switch Q2 source S connects barometer P1 power supply interface VDD, kernel power supply interface VDD_IO, piece and selects interface CS respectively
And decoupling capacitor C1 first end, decoupling capacitor C1 the second end ground connection GND, barometer P1 data signal interfaces SDA and
Interface clock signal SCL connects central processing module MCU data signal interfaces SDA and interface clock signal SCL respectively.Air pressure
Count P1 earth terminals ground connection GND.
In the utility model, power switch Q1 and Q2 is respectively as temperature detecting module 110 and air pressure detection module 120
Switch, have central processing module MCU by Q1 and Q2 control the opening of temperature detecting module 110 and air pressure detection module 120/
Close.The analog voltage signal that temperature detecting module 110 is exported is transferred to central processing module MCU temperature detection interface Tem_
Det, feedback temperature information；Barometer P1 passes through data signal interfaces SDA and interface clock signal SCL and central processing module
MCU communicates, and transmits the atmospheric pressure value of collection.
It should be noted that the power switch Q1 and power switch Q2 in the utility model can use PMOS or load
Switch is substituted.
The concrete operating principle of circuit system shown in Fig. 2 is：
(1) system electrification.
After battery output electric energy or outside input dc source are given to the power supply module of inside in system, power supply module
In power management chip output system electric (Vsys) to electric in whole system.
(2) initialize.
After system electrification, central processing module MCU is initialized first, configuration central processing module MCU input/defeated
Outgoing interface I/O_1 level states, are communicated with temperature detecting module 110 and air pressure detection module 120 by I2C lines and configure each
The interface I/O states of module, read the state of each module, judge whether each module is working properly.
(3) the power switch Q2 in the power switch Q1 and air pressure detection module 120 in opening temperature detection module 110.
After the completion of initialization, central processing module MCU all input/output interface I/O_1 have continuous voltage VI/O, VI/O
It is identical typically with MCU I/O_1 output ceiling voltages.If needing power-on to switch Q1 and power switch Q2 in use,
Then central processing module MCU exports high level V by I/O_1I/O, in the first pull down resistor R1 and the 4th pull down resistor R4 two ends
Voltage difference can be produced, because Q1 uses enhanced NMOS tube, Q1 grid voltages VG=VI/O, gate source voltage VGS=VI/OOpened more than Q1
Open voltage Vth, therefore Q1 opens, temperature detecting module 110 starts working.Similarly, Q2 and Q1 uses the NMOS tube of same model,
Q2 is opened, and Vsys enters the power supply interface VDD at P1 ends, and air pressure detection module 120 is started working.
(4) air pressure and temperature acquisition.
After Q1 is opened, the resistance between its source S and drain D can be closed close to 0 Ω, Vsys by R2, R3 and GND formation
Close circuit.Due to there is electric current to flow through R2 and R3, therefore there is voltage difference in R3 two ends, and Tem_DET is under normal temperature (generally 25 DEG C)
Being output to MCU terminal voltages isHere, R2 is positive temperature coefficient resistor, is certain at its 25 DEG C
One resistance, its resistance is raised with the rise of temperature.For example, R2=10k Ω, temperature coefficient B=+0.4k Ω/DEG C, then it hinders
Value is represented by R2=10+0.4 (T-25) (k Ω) with temperature T situations of change；R3 is negative temperature coefficient resister, is hindered at its 25 DEG C
Value can use a certain resistance, and its resistance is reduced with the rise of temperature.For example, R3=10k Ω, temperature coefficient B=-0.4k
Ω/DEG C, then its resistance is represented by R3=10-0.4 (T-25) (k Ω) with temperature T situations of change.So, it is output to MCU ends electricity
PressureVoltage changes with the change of temperature, when the temperature increases VTem_DETDrop
It is low, V when the temperature decreasesTem_DETRise, each magnitude of voltage of output can correspond to a temperature value, so be achieved that pair
The detection of ambient temperature.
Q2 is opened simultaneously, and barometer P1 detects ambient air pressure, is converted to air pressure accordingly by P1 inner pressure sensitive devices
Magnitude of voltage, magnitude of voltage is converted into corresponding digital quantity D via A/D converterP, MCU is transferred to by SDA and SCL, it is different
The corresponding magnitude of voltage of air pressure it is different, the digital quantity D of transmissionPAlso it is different.
(5) MCU algorithm process.
When central processing module MCU receives the V of the input of temperature detecting module 110Tem_DETPass through internal A/D modules afterwards
By VTem_DETBe converted to corresponding temperature value DT, and export；Simultaneously according to DTBy the atmospheric pressure value D receivedPIt is corrected, high-ranking officers
Atmospheric pressure value P outputs after just.The updating formula wherein utilized is：P=DP+kDT.Wherein, P represents the atmospheric pressure value after correction, DPTable
Show ambient pressure value, DTThe temperature value of simulated environment temperature is represented, k represents temperature coefficient, and temperature coefficient is obtained by data statistics
Arrive, by substantial amounts of DTAnd DPCounted, obtained corresponding temperature coefficient K.
(6) the power switch Q2 in the power switch Q1 and air pressure detection module 120 in closing temperature detection module 110.
When circuit system closes air pressure detection and temperature detecting function, MCU exports low level or without output by I/O_1
When, resistance R1 and R4 two ends no-voltage is poor, and Q1 and Q2 grid G terminal voltage are pulled to ground terminal GND, i.e. VG=0V, gate source voltage
VGS=0V is less than Q1 and Q2 cut-in voltage Vth, therefore Q1 and Q2 closings, temperature detecting module and air pressure detection module are closed simultaneously
Close.
A kind of Intelligent worn device schematic diagram that Fig. 3 provides for the utility model one embodiment.As shown in figure 3, intelligence
Wearable device 300 includes display screen 310 and pressure test device 320 as shown in Figure 1.The ring that pressure test device 320 is exported
Atmospheric pressure value after the temperature value of border temperature and correction is shown on display screen 310, is checked for user, is further appreciated that displacement
Situation and surrounding environment.Meanwhile, the Intelligent worn device can also be calculated for residing height simultaneously by the atmospheric pressure value of output
It has been shown that, is particularly climbing building or is climbing in operation, checking elevation information for user, strengthen Consumer's Experience.
A kind of Intelligent worn device schematic diagram that Fig. 4 provides for the utility model another embodiment.As shown in figure 4, intelligence
Energy wearable device 400 includes display screen 410, pressure test device 420 as shown in Figure 1 and controlling switch 430.Controlling switch
430 ON/OFF for controlling pressure test device 420；When pressure test device 420 is opened, the input of central processing module/defeated
Outgoing interface exports high level, turns on the power switch Q1 and Q2；When pressure test device is closed, the input of central processing module/defeated
Outgoing interface exports low level, turns off the power switch Q1 and Q2, if the pressure test device is constantly in the state of opening, increases intelligence
The power consumption of energy wearable device, increase controlling switch can effectively reduce the power consumption of Intelligent worn device.
In one embodiment of the present utility model, Intelligent worn device 400 is motion bracelet.
For the equipment shown in Fig. 3 or Fig. 4, it is generally the case that when user wears the equipment, user's shell temperature and week
The temperature in collarette border has different, and air pressure detection is influenceed larger by user's shell temperature, in order to exclude body surface temperature
The influence detected to air pressure is spent, can be by the semistor R2 and negative temperature coefficient heat-sensitive in pressure test device
Resistance R3 is placed in from whole equipment outer surface proximity, detects the temperature of user's body surface.To correct the atmospheric pressure value of detection.
It should be noted that each embodiment of the equipment shown in Fig. 3-Fig. 4 and each embodiment of the device shown in Fig. 1-Fig. 2
Correspondence is identical, has been described in detail, will not be repeated here above.
In summary, the utility model detects the air pressure of surrounding environment using air pressure detection module, while being examined using temperature
The temperature that module detects surrounding environment is surveyed, then according to the temperature correction atmospheric pressure value of surrounding environment, and by the atmospheric pressure value after correction
Output.It can be seen that, the utility model increase temperature detecting module can not only obtain the temperature of surrounding environment in time, aid in simultaneously
Air pressure detection module carries out accurate air pressure detection, and the atmospheric pressure value after correction eliminates the shadow of temperature factor to a certain extent
Ring, more accurately aid in user to understand motion state and surrounding environment, can adapt to various moving scenes, beneficial to enhancing user
Experience.
It is described above, embodiment only of the present utility model, under above-mentioned teaching of the present utility model, this area
Technical staff can carry out other improvement or deformation on the basis of above-described embodiment.It will be understood by those skilled in the art that
Above-mentioned specific descriptions are more preferable explanation the purpose of this utility model, and protection domain of the present utility model should be with claim
Protection domain be defined.
Claims (6)
1. a kind of pressure test device, it is characterised in that including：Temperature detecting module, air pressure detection module, center processing mould
Block；
The temperature detecting module, the central processing module is sent to for obtaining the voltage signal of simulated environment temperature；
The air pressure detection module, the central processing module is sent to for detecting ambient pressure, and by atmospheric pressure value；
The central processing module, for controlling the temperature detecting module and the air pressure detection module gathered data simultaneously,
And the voltage signal of the simulated environment temperature received is converted into corresponding temperature value and exported, and according to the temperature value
The atmospheric pressure value received is corrected, and the atmospheric pressure value after correction is exported.
2. pressure test device as claimed in claim 1, it is characterised in that the temperature detecting module includes：First drop-down
Resistance, the first power switch, the second semistor, the 3rd negative tempperature coefficient thermistor；Wherein, described first
Power switch is enhanced NMOS tube；
The first end ground connection of first pull down resistor, the input/output interface of the second end and the central processing module and
The grid connection of first power switch；The first end of second semistor connects first power supply
The drain electrode of switch, the second end connection system power supply；The first end connection described first of 3rd negative tempperature coefficient thermistor
The source electrode of power switch, the second end ground connection；The source electrode of first power switch connects the temperature inspection of the central processing module
Survey interface.
3. pressure test device as claimed in claim 1, it is characterised in that the air pressure detection module includes the 4th drop-down electricity
Resistance, second source switch, the first decoupling capacitor, barometer；Wherein, the second source switch is enhanced NMOS tube；
The first end ground connection of 4th pull down resistor, the input/output interface of the second end and the central processing module and
The grid connection of the second source switch；The drain electrode connection system power supply of the second source switch, the second source is opened
The source electrode of pass connects the barometrical power supply interface, kernel power supply interface, piece and selects interface and the decoupling capacitor respectively
First end, the second end ground connection of the decoupling capacitor, the barometrical data signal interfaces and interface clock signal connect respectively
Connect the data signal interfaces and interface clock signal of the central processing module.
4. a kind of Intelligent worn device, it is characterised in that the Intelligent worn device includes display screen and as claim 1-3 appoints
Atmospheric pressure value after pressure test device described in one, the temperature value of the environment temperature of the pressure test device output and correction
In the display screen display.
5. Intelligent worn device as claimed in claim 4, it is characterised in that the Intelligent worn device is also opened including control
Close, the ON/OFF for controlling the pressure test device；
When the pressure test device is opened, the input/output interface output high level of the central processing module；The air pressure
When detection means is closed, the input/output interface output low level of the central processing module.
6. Intelligent worn device as claimed in claim 5, it is characterised in that the Intelligent worn device is motion bracelet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253438.1U CN206348621U (en) | 2016-11-22 | 2016-11-22 | A kind of pressure test device and Intelligent worn device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253438.1U CN206348621U (en) | 2016-11-22 | 2016-11-22 | A kind of pressure test device and Intelligent worn device |
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| Publication Number | Publication Date |
|---|---|
| CN206348621U true CN206348621U (en) | 2017-07-21 |
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ID=59322796
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621253438.1U Active CN206348621U (en) | 2016-11-22 | 2016-11-22 | A kind of pressure test device and Intelligent worn device |
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| CN (1) | CN206348621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647459A (en) * | 2016-11-22 | 2017-05-10 | 歌尔科技有限公司 | Air pressure detecting device and method and smart wearable device |
-
2016
- 2016-11-22 CN CN201621253438.1U patent/CN206348621U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647459A (en) * | 2016-11-22 | 2017-05-10 | 歌尔科技有限公司 | Air pressure detecting device and method and smart wearable device |
| CN106647459B (en) * | 2016-11-22 | 2024-04-02 | 歌尔科技有限公司 | Air pressure detection device, air pressure detection method and intelligent wearable equipment |
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