CN2590302Y - Mobile phone - Google Patents
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- Publication number
- CN2590302Y CN2590302Y CN 02280291 CN02280291U CN2590302Y CN 2590302 Y CN2590302 Y CN 2590302Y CN 02280291 CN02280291 CN 02280291 CN 02280291 U CN02280291 U CN 02280291U CN 2590302 Y CN2590302 Y CN 2590302Y
- Authority
- CN
- China
- Prior art keywords
- mobile phone
- digital
- temperature sensor
- temperature
- temperature measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a mobile phone which is provided with a temperature measuring device composed of a digital temperature sensor, a mobile phone central processing unit and a liquid crystal display, wherein with the digital temperature sensor, the temperature measuring device does not need to carry out special analog-to-digital conversion so as to improve the accuracy of temperature measurement, and simultaneously, the circuits are simplified and the cost is reduced. In addition, because the power of the mobile phone is supplied by the energy stored in capacitors through data lines and signal lines on an IIC interface, the power energy consumed by the temperature measuring device is reduced.
Description
[technical field]
The utility model relates to a kind of mobile phone, especially refers to a kind of mobile phone with new auxiliary function.
[background technology]
Along with the high speed development of electronic industry, mobile phone has obtained in the whole world developing rapidly and popularizing.Present most mobile phone is except having good call function, and is more compatible such as several data communication services such as short message receiving-transmitting, online, Mobile banking, mobile chatrooms.And in order to satisfy the popular demand of consumption, it is light and handy, easy to carry and have a mobile phone of more auxiliary functions such as FM radio, electronic game etc. that each manufacturer releases structure one after another.This also becomes one of attraction of various mobile phones when bringing more convenience to people.
The prior art relevant with the utility model can be consulted the Chinese patent application that August 7, disclosed publication number was CN1362825A in 2002.This patent discloses a kind of mobile phone with temperature survey function, and it comprises antenna, casing, is arranged in keyboard, LCDs, receiver, transmitter, the control circuit that is positioned at casing, battery on the casing and the digital temperature displayed measurement mechanism of being made up of A/D converter, central processing unit and the LCDs of analog temperature sensor, mobile phone master chip.But the defective of this technology is: the analog temperature sensor of its use and thermal resistor need add linearizer, and special-purpose DC-DC power-switching circuit and A/D conversion equipment, this certainly will increase the complexity of circuit and be difficult to guarantee its thermometric accuracy.In addition, need to give above-mentioned linearizer that power supply is provided, thereby consumed valuable power supply energy, and then shortened the stand-by time of mobile phone.
[utility model content]
The purpose of this utility model is to provide a kind of mobile phone with temperature survey function, and its temperature measuring equipment circuit is simple, temperature survey is relatively accurate and have lower power supply energy consumption.
The purpose of this utility model is achieved through the following technical solutions: the utility model mobile phone, be provided with temperature measuring equipment, and it is characterized in that: described temperature measuring equipment comprises digital temperature sensor, mobile phone central processing unit and LCD.
Digital temperature sensor directly outputs to the mobile phone central processing unit to the temperature that senses with digital form in the described temperature measuring equipment.
The digital temperature data that the mobile phone central processing unit is sent here transducer in the described temperature measuring equipment are handled, and show according to the mode that is provided with on LCD, and make corresponding prompting or warning according to the value of temperature.
The mode of temperature prompting and warning is sound, animation or literal in the described temperature measuring equipment.
Digital temperature sensor can be made the annex of this mobile phone in the described temperature measuring equipment, and the input interface by its telephone casing surface is directly connected on the mobile phone central processing unit in the casing.
Described digital temperature sensor can directly be integrated on the mobile phone casing, on the interior mainboard of the machine that also can be integrated in.
Compared to prior art, the temperature measuring equipment of the utility model mobile phone does not need to carry out special analog-to-digital conversion, thereby has improved thermometric accuracy by adopting digital temperature sensor, has also simplified circuit simultaneously, has reduced cost.In addition, owing to its power supply is provided by the energy that data wire on the IIC interface and holding wire are stored in the electric capacity, thereby also reduced the consumption of temperature measuring equipment to power supply energy.
[description of drawings]
Fig. 1 is the control circuit figure of temperature measuring equipment of the present utility model.
Fig. 2 is the circuit theory diagrams of the control circuit embodiment of temperature measuring equipment of the present utility model.
[embodiment]
See also illustrated in figures 1 and 2ly, the major control circuit in the temperature measuring equipment of the present utility model is made up of digital temperature sensor U1, mobile phone central processing unit (CPU) and LCD (LCD).In this temperature measuring equipment, digital temperature sensor U1 directly exports high-precision digital temperature value, the mobile phone central processing unit is handled the digital temperature value that digital temperature sensor U1 sends here, display mode according to software setting, be presented on the LCD, can also provide in modes such as sound, animation or literal according to temperature value and remind or alert service.
Digital temperature sensor U1 is the LM92 type digital temperature sensor of National Semiconductor company in the present embodiment, its inside contains 12 megadyne temperature degree analog to digital converters, the analog quantity of sensed temperature can be converted to the digital quantity of 0.0625 ℃ of quantized interval, under the normal temperature precision can reach ± 0.33 ℃.
It is to finish by holding wire, data wire, diode D1, D2 and capacitor C 1 that the power supply of digital temperature sensor U1 is supplied with, wherein the effect of capacitor C 1 is: when holding wire and data wire all are low level, U1 provides electric energy to digital temperature sensor, the clutter that filtering is simultaneously transmitted via circuit, when holding wire and data wire have one during for high level, can be by diode D1 or D2 to capacitor C 1 charging.Digital temperature sensor U1 powers on and just starts working, and the mobile phone central processing unit can read the real time temperature value by the IIC data/address bus at any time from digital temperature sensor U1, deliver to the liquid crystal display displays current temperature value after the processing.
Two other pin INT on the digital temperature sensor U1 and T_CRIT_A are used separately as temperature to remind interrupt signal and temperature alarming interrupt signal, can be connected to together on the interruptive port of mobile phone central processing unit, also can be connected to different port respectively.When being connected to an interruptive port, as interrupting generation, it is which interrupts on earth that the mobile phone central processing unit will be told, and only need read the relevant bits of the temperature register of digital temperature sensor U1, and which pin output and temperature scope of living in just can judge interruption is by.When being connected to different port, generally the INT pin is connected on the interruptive port of mobile phone central processing unit, as temperature real-time reminding or warning at ordinary times, the T_CRIT_A pin then is connected to the interruptive port of mobile phone main power switch or central processing unit, as emergency alarm under the special state or even automatic shut down switch.Above-mentioned dual mode can carry out freely selecting according to the difference of use occasion.Simultaneously, after digital temperature sensor U1 sent interrupt signal, whether handling interrupt was to influence digital temperature sensor U1 work to the mobile phone central processing unit.When condition changing, it can restore to the original state again automatically.In addition, the I/O mouth resource of mobile phone central processing unit is limited, therefore, if fracture very little in the mobile phone central processing unit, also can not use hardware interrupts, and vacant or ground connection all can this bipod.Come detected temperatures by software again, can reach equally different temperature ranges made and remind or functions such as warning.
Digital temperature sensor U1 in the utility model is connected on the mobile phone central processing unit by iic bus, therefore, as long as use iic bus in mobile phone, just can directly be integrated into this programme on the mobile phone.Aspect software design, also only need to increase operation code and temperature applications code section to temperature sensor.So, be easier to integrated temperature measure portion in the prior mobile phone system, increase additional function.
Claims (6)
1. a mobile phone is provided with temperature measuring equipment, it is characterized in that: described temperature measuring equipment comprises digital temperature sensor, mobile phone central processing unit and LCD.
2. mobile phone as claimed in claim 1 is characterized in that: digital temperature sensor directly outputs to the mobile phone central processing unit to the temperature that senses with digital form in the described temperature measuring equipment.
3. mobile phone as claimed in claim 2, it is characterized in that: the digital temperature data that the mobile phone central processing unit is sent here digital temperature sensor in the described temperature measuring equipment are handled, on LCD, show, and make reactions such as corresponding prompting or warning according to the value of temperature according to the mode that is provided with.
4. mobile phone as claimed in claim 3 is characterized in that: the mode of temperature prompting and warning can be sound, animation or literal in the described temperature measuring equipment.
5. mobile phone as claimed in claim 4, it is characterized in that: digital temperature sensor can be made the annex of this mobile phone in the described temperature measuring equipment, and the input interface by its telephone casing surface is directly connected on the mobile phone central processing unit in the casing.
6. as claim 1 or 5 described mobile phones, it is characterized in that: described digital temperature sensor can directly be integrated on the mobile phone casing, on the interior mainboard of the machine that also can be integrated in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02280291 CN2590302Y (en) | 2002-12-05 | 2002-12-05 | Mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02280291 CN2590302Y (en) | 2002-12-05 | 2002-12-05 | Mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2590302Y true CN2590302Y (en) | 2003-12-03 |
Family
ID=33743085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02280291 Expired - Fee Related CN2590302Y (en) | 2002-12-05 | 2002-12-05 | Mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2590302Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007051363A1 (en) * | 2005-11-02 | 2007-05-10 | Shanghai Topret Industrial Design Co., Ltd. | A mobile phone capable of measuring temperature |
| CN100353792C (en) * | 2004-10-07 | 2007-12-05 | 乐金电子(中国)研究开发中心有限公司 | Automatic informing device and method for temp of battery for mobile communication terminal |
| CN101984644A (en) * | 2010-10-28 | 2011-03-09 | 浙江大学 | Android operating system mobile phone-based temperature alarm method |
-
2002
- 2002-12-05 CN CN 02280291 patent/CN2590302Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100353792C (en) * | 2004-10-07 | 2007-12-05 | 乐金电子(中国)研究开发中心有限公司 | Automatic informing device and method for temp of battery for mobile communication terminal |
| WO2007051363A1 (en) * | 2005-11-02 | 2007-05-10 | Shanghai Topret Industrial Design Co., Ltd. | A mobile phone capable of measuring temperature |
| CN101984644A (en) * | 2010-10-28 | 2011-03-09 | 浙江大学 | Android operating system mobile phone-based temperature alarm method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |