CN201774573U - Compass mobile phone - Google Patents
Compass mobile phone Download PDFInfo
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- CN201774573U CN201774573U CN2010205233575U CN201020523357U CN201774573U CN 201774573 U CN201774573 U CN 201774573U CN 2010205233575 U CN2010205233575 U CN 2010205233575U CN 201020523357 U CN201020523357 U CN 201020523357U CN 201774573 U CN201774573 U CN 201774573U
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Abstract
The utility model discloses a compass mobile phone, comprising a mobile phone main body, a display screen and a mobile phone main circuit board, wherein the display screen and the mobile phone main circuit board are installed in the mobile phone main body. The main circuit board is provided with a sensor unit, a signal regulating unit and a direction identifying unit; the sensor unit is connected with the direction identifying unit through the signal regulating unit; the sensor unit transforms geomagnetic field signals into electric signals to output to the signal regulating unit; and the signal regulating unit amplifies the electric signals proportionally and outputs the two paths of signals of X-axis and Y-axis to the direction identifying unit. The compass mobile phone transforms the geomagnetic field signals into the electric signals to output to the signal regulating unit through the sensor unit; the signal regulating unit amplifies the signals proportionally and transforms into the appropriate X-axis and Y-axis signals; and then, the direction identifying unit amplifies the X-axis and Y-axis signals and calculates the deflection angle. Compared with the prior art, the compass mobile phone can be widely used in a location system, and is convenient in carrying, good in reliability and high in precision.
Description
Technical field
The utility model relates to mobile phone, and what be specifically related to is a kind of mobile phone with digital compass function.
Background technology
Compass is a kind of important navigational tool, can be applicable in the multiple occasion.The digital compass internal structure is fixed, and does not have movable part, can be simply and other electronic system interface, and therefore can replace old magnetic compass, and obtain extensive utilization with characteristics such as precision height, good stabilities.
Along with the raising day by day of people's living standard, the chance that people go out, travel increases greatly, and mobile phone becomes people's with oneself indispensable instrument of going out, and how understanding own current location and direction out of doors in real time becomes the problem that perplexs people gradually.And traditional compass direction indication precision performance is not high, and also often popular because of not having, few people have with oneself and carry.
The utility model content
In view of this, the purpose of this utility model is digital compass is combined with mobile phone, and a kind of mobile phone with digital compass function is provided, and can connect oneself position and direction whenever and wherever possible to realize the user.
For achieving the above object, the utility model is mainly by the following technical solutions:
A kind of compass mobile phone, comprise mobile phone body and the display screen and the mobile phone main circuit board that are installed in the mobile phone body, described main circuit board is provided with sensor unit, signal adjustment unit and direction determining unit, and described sensor unit is connected with the direction determining unit by signal adjustment unit; Sensor unit changes into the signal of telecommunication with the earth magnetic field signal and exports to signal adjustment unit; Signal adjustment unit is the proportional amplification of above-said current signal, and output X-axis and Y-axis two paths of signals are to the direction determining unit.
Described sensor unit is a magnetic field sensor KMZ52 chip.
Also be provided with a display unit on the described main circuit board, described direction determining unit is connected with display screen by display unit.
The utility model changes into the signal of telecommunication by sensor unit with the earth magnetic field signal and exports to signal adjustment unit, signal adjustment unit is with the proportional amplification of this signal, and convert thereof into suitable X-axis and Y-axis signal, then by X-axis and Y-axis signal being amplified, calculate deflection angle at last to determining unit.Compared with prior art, the utility model can be widely used in navigation system, and has easy to carry, good reliability, advantage of high precision.
Description of drawings
Fig. 1 is the utility model schematic perspective view.
Fig. 2 is the utility model theory diagram.
Identifier declaration among the figure: mobile phone body 1, display screen 101, mobile phone main circuit board 102, sensor unit 103, signal adjustment unit 104, direction determining unit 105, display unit 106.
Embodiment
For setting forth thought of the present utility model and purpose, the utility model is described further below in conjunction with the drawings and specific embodiments.
See also Fig. 1, shown in Figure 2, the utility model provides a kind of mobile phone with digital compass function, and it mainly includes mobile phone body 1, is installed in display screen 101 and mobile phone main circuit board 102 in the mobile phone body 1.
Wherein said main circuit board 102 is provided with sensor unit 103, signal adjustment unit 104, direction determining unit 105 and display unit 106, sensor unit 103 is connected with direction determining unit 105 by signal adjustment unit 104, and direction determining unit 105 is connected with display screen 101 by display unit 106.
By the two paths of signals hex and the hey of signal adjustment unit 104 outputs, amplify through direction determining unit 105 again, calculate deflection angle α by following formula then:
α＝arctan(hey/hex)
In addition, there is the magnetic field sensor of two quadratures magnetic field sensor KMZ52 inside, and it is the X-axis and the Y-axis of corresponding two dimensional surface respectively.The principle of magnetic field sensor is to utilize magnetic resistance (MR) to form the magnetic-type structure, can change the externally resistance coefficient in the magnetic field of electromagnetism material like this.So that loading the magnetic field that enables to change behind the upset signal of telecommunication on the flip coils Z1 of magnetic field sensor and the Z2.Because this variation magnetic field can be caused magnetic resistance change rate (Δ R) 0 and be converted it into the differential voltage output of variation, like this, just can be proportional to the principle of output differential voltage according to the magnetic field size, read two corresponding axis signals respectively, and then handle calculating and can obtain deflection angle.According to the Anti-Jamming Technique algorithm α is handled the deflection angle that just can draw this magnetic field like this, export by display unit at last.
The utility model digital compass mobile phone adopts special data processing method to improve the precision of system, has reduced the influence that other factors causes, and system accuracy is further enhanced.In addition, 2 dimension magnetic fields can be measured by this system itself, thus can form 3 dimension measuring systems with another 1 dimension magnetic field sensor (KMZ51) easily, to eliminate tilt phenomenon.Because native system can adopt various processing platforms to realize, therefore have good portability, can be widely used in navigation system, and good reliability, precision is very high.
More than a kind of compass mobile phone provided by the utility model is described in detail, used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (3)
1. compass mobile phone, comprise mobile phone body (1) and be installed in display screen (101) and mobile phone main circuit board (102) in the mobile phone body (1), it is characterized in that described main circuit board (102) is provided with sensor unit (103), signal adjustment unit (104) and direction determining unit (105), described sensor unit (103) is connected with direction determining unit (105) by signal adjustment unit (104); Sensor unit (103) changes into the signal of telecommunication with the earth magnetic field signal and exports to signal adjustment unit (104); Signal adjustment unit (104) is the proportional amplification of above-said current signal, and output X-axis and Y-axis two paths of signals are to direction determining unit (105).
2. compass mobile phone according to claim 1 is characterized in that described sensor unit (103) is a magnetic field sensor KMZ52 chip.
3. compass mobile phone according to claim 1 is characterized in that also being provided with on the described main circuit board (102) display unit (106), and described direction determining unit (105) is connected with display screen (101) by display unit (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205233575U CN201774573U (en) | 2010-09-08 | 2010-09-08 | Compass mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205233575U CN201774573U (en) | 2010-09-08 | 2010-09-08 | Compass mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774573U true CN201774573U (en) | 2011-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205233575U Expired - Fee Related CN201774573U (en) | 2010-09-08 | 2010-09-08 | Compass mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201774573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645570A (en) * | 2012-04-13 | 2012-08-22 | 惠州Tcl移动通信有限公司 | Hand-held electronic equipment-based galvanometer |
-
2010
- 2010-09-08 CN CN2010205233575U patent/CN201774573U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645570A (en) * | 2012-04-13 | 2012-08-22 | 惠州Tcl移动通信有限公司 | Hand-held electronic equipment-based galvanometer |
| CN102645570B (en) * | 2012-04-13 | 2015-08-19 | 惠州Tcl移动通信有限公司 | A kind of galvanometer based on hand-held electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20130908 |