CN102852390B - Ultrasonic feedback automobile key - Google Patents
Ultrasonic feedback automobile key Download PDFInfo
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- CN102852390B CN102852390B CN201210291998.6A CN201210291998A CN102852390B CN 102852390 B CN102852390 B CN 102852390B CN 201210291998 A CN201210291998 A CN 201210291998A CN 102852390 B CN102852390 B CN 102852390B
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- automobile key
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Abstract
The invention provides a kind of ultrasonic feedback automobile key, belong to electronic communication field; Comprise: trigger switch, modulator, transmitter; Also comprise receiver, buzzer; After described receiver receives signal, trigger described buzzer and generate ultrasonic wave.This automobile key can adopt its position of mobile phone tracking, and structure is simple.
Description
Technical field
The present invention relates to electronic communication field, particularly, relate to a kind of automobile key with communication function.
Background technology
Along with the surge of automobile quantity, automobile key has become the carry-on articles in people's daily life gradually.And with the quickening pace of modern life, people are also deteriorated gradually for the memory of trival matters; In busy work and life process, often can not note the placement part of automobile key, when needs are driven, often can find and for a long time just can find automobile key, this causes very large inconvenience by people, not only troublesome, and loses time in a large number.
Under the circumstances, according to the method for searching mobile phone in daily life, signal can be sent to automobile key, and makes it pipe, thus found.But the volume of automobile key is very limited, and for buzzer, the too small buzzer volume of volume is very little, when automobile key is placed in clothing heap, if also there is component environment noise, then can't hear the sound of buzzer at all; For the buzzer that volume is larger, then cannot arranged rational in small size automobile key.Therefore, at present for a kind of traceable automobile key of invention, be extremely there is practical significance.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of ultrasonic feedback automobile key, this automobile key can adopt its position of mobile phone tracking, and structure is simple.
The technical solution adopted for the present invention to solve the technical problems is: this ultrasonic feedback automobile key comprises: trigger switch, modulator, transmitter; Also comprise receiver, buzzer; After described receiver receives signal, trigger described buzzer and generate ultrasonic wave.
The present invention also aims to provide a kind of and carry out to described ultrasonic feedback automobile key the cell phone software method of following the trail of that communicates, the method comprising the steps of:
One, trace signals is sent; Start timing: send the signal equal with the receiver resonant frequency of described automobile key by antenna for mobile phone, timer starts timing simultaneously simultaneously;
Two, feedback signal is waited for: the ultrasound feedback signal that the buzzer monitoring described automobile key by the receiver of mobile phone sends;
Three, receiving feedback signals; Terminate timing: receive described ultrasound feedback signal by the receiver of mobile phone, and be converted to analog signal, this analog signal triggered timer stops timing simultaneously;
Four, calculate automobile key distance: according to beginning timing to timing terminate count the time of getting, and SVEL, i.e. 340m/s, calculate the distance of automobile key;
Five, display automobile key position information: the positional information of display automobile key on mobile phone screen.
Beneficial effect of the present invention is: when this ultrasonic feedback automobile key is lost within the specific limits, that is user forget that it places local time, by common smart mobile phone, after the software write according to above-mentioned software approach is installed, namely find automobile key easily by the communication between mobile phone and automobile key.
Accompanying drawing explanation
Fig. 1 is the structural representation of this ultrasonic feedback automobile key.
Fig. 2 is the embodiment schematic diagram ultrasonic feedback automobile key shown in Fig. 1 being carried out to the software approach of mobile phone tracking.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described:
As shown in Figure 1, it comprises the electrical structure of a ultrasonic feedback automobile key provided by the invention embodiment: trigger switch 1, modulator 2, transmitter 3; Described trigger switch 1 activated modulation device 2 modulates corresponding control signal, is sent, to control the operations such as opening/closing door of vehicle by transmitter 3; This automobile key also comprises receiver 4, buzzer 5; After described receiver 4 receives signal, trigger described buzzer 5 and generate ultrasonic wave.
Ultrasonic feedback automobile key shown in Fig. 1 is realized to the cell phone software method of communication tracking, an one embodiment as shown in Figure 2, comprises following step:
Send trace signals S110: send the signal equal with receiver 4 resonant frequency of described automobile key by antenna for mobile phone; Meanwhile, timing S120 is started;
Wait for feedback signal S130: the ultrasound feedback signal that the buzzer 5 monitoring described automobile key by the receiver of mobile phone sends;
Receiving feedback signals S140; Meanwhile, timing S150 is terminated: receive described ultrasound feedback signal by the receiver of mobile phone, and be converted to analog signal, compared by the signal spectrum preset in this analog signal and software, both are consistent, then confirm as the feedback signal that automobile key sends, now, timer stops timing;
Calculate automobile key distance S160: according to start timing to timing terminate count the time of getting, and SVEL, i.e. 340m/s, calculate the distance of automobile key; Concrete computational process is as follows: set count time of getting as t, the velocity of sound is v, then automobile key is apart from the distance L=vt/2 of mobile phone.
Display automobile key position information S170: the positional information of display automobile key on mobile phone screen; Its display mode can comprise the following two kinds: one, only range of a signal data on screen; Its two, it is the center of circle with mobile phone location that screen shows one, and the distance L of automobile key is the circle of radius, shows this radius of a circle simultaneously.
In addition, before step S110, also comprise a step: generate timing pip S100; This step S100 makes mobile phone every equal time interval, and the institute repeated between a step S110 to step S170 (comprises step S110 and step S170) in steps.
When above-mentioned ultrasonic feedback automobile key is lost within the specific limits, by common smart mobile phone, after the software run according to above-mentioned software approach is installed, the positional information of automobile key can be obtained easily.Particularly, under the triggering of described step S100, send signal to automobile key continuously by mobile phone, and receiving feedback signals continuously, in the process, user moves towards the direction of automobile key Distance Shortened all the time, can move closer to automobile key, it finds the most at last.
Finally it is worthy of note, for current common smart mobile phone, the function that all there is signal transmitting and receiving, the reception of various audio frequency and process, therefore, above-mentioned software approach can be competent at completely, those skilled in that art only need, according to the step making software in above-mentioned software approach, can realize following the trail of to automobile key; For the particular content of software, not the object of patent protection on the one hand, belong to the common-sense technology contents of software engineer on the other hand, repeat no more herein.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. ultrasonic feedback automobile key is realized to a cell phone software method of following the trail of, it is characterized in that:
Described ultrasonic feedback automobile key, comprises trigger switch (1), modulator (2), transmitter (3); It is characterized in that: also comprise receiver (4), buzzer (5); After described receiver (4) receives signal, trigger described buzzer (5) and generate ultrasonic wave;
Described method comprises the steps:
Send trace signals (S110): send the signal equal with receiver (4) resonant frequency of described automobile key by antenna for mobile phone; Meanwhile, timing (S120) is started;
Wait for feedback signal (S130): the ultrasound feedback signal that the buzzer (5) monitoring described automobile key by the receiver of mobile phone sends;
Receiving feedback signals (S140); Simultaneously, terminate timing (S150): receive described ultrasound feedback signal by the receiver of mobile phone, and be converted to analog signal, the signal spectrum preset in this analog signal and software is compared, both are consistent, then confirm as the feedback signal that automobile key sends, now, timer stops timing;
Calculate automobile key distance (S160): according to beginning timing to timing terminate count the time of getting, and SVEL, calculate the distance of automobile key;
Display automobile key position information (S170): the positional information of display automobile key on mobile phone screen;
Before transmission trace signals (S110) step, also comprise a step: generate timing pip (S100); This step (S100) makes mobile phone every equal time interval, repeats once to send institute between trace signals (S110) to display automobile key position information (S170) in steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210291998.6A CN102852390B (en) | 2012-08-16 | 2012-08-16 | Ultrasonic feedback automobile key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210291998.6A CN102852390B (en) | 2012-08-16 | 2012-08-16 | Ultrasonic feedback automobile key |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102852390A CN102852390A (en) | 2013-01-02 |
| CN102852390B true CN102852390B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210291998.6A Expired - Fee Related CN102852390B (en) | 2012-08-16 | 2012-08-16 | Ultrasonic feedback automobile key |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405186A (en) * | 2014-10-15 | 2015-03-11 | 合肥彩象信息科技有限公司 | Automotive electronic key |
| CN105317287A (en) * | 2015-10-25 | 2016-02-10 | 朱思学 | Intelligent digital lock |
| CN110045378B (en) * | 2018-01-17 | 2022-06-21 | 中兴通讯股份有限公司 | Method and device for searching terminal equipment and related equipment |
| US11384565B2 (en) | 2018-03-26 | 2022-07-12 | Carrier Corporation | System and method for monitoring an access key from a key box |
| US10796519B2 (en) | 2018-03-26 | 2020-10-06 | Carrier Corporation | System and method for monitoring an access key from a key box |
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| JP2001234651A (en) * | 2000-02-23 | 2001-08-31 | Denso Corp | Wireless transmitter |
| WO2004010617A1 (en) * | 2002-07-19 | 2004-01-29 | Skylight Ag | Key for a remote-control locking system |
| CN1499219A (en) * | 2002-11-05 | 2004-05-26 | 朱景军 | 'Handest-probe' type Distance warner |
| CN2768321Y (en) * | 2004-12-07 | 2006-03-29 | 乐金电子(中国)研究开发中心有限公司 | Key beep-pager |
| CN101932481A (en) * | 2008-01-31 | 2010-12-29 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Vehicle key, and method for locating a motor vehicle within a close range with the help of a vehicle key |
| CN201804441U (en) * | 2010-03-23 | 2011-04-20 | 比亚迪股份有限公司 | Auxiliary vehicle finding device |
| CN102287079A (en) * | 2010-06-18 | 2011-12-21 | 上海市静安区教育学院附属学校 | Car key |
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2012
- 2012-08-16 CN CN201210291998.6A patent/CN102852390B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001234651A (en) * | 2000-02-23 | 2001-08-31 | Denso Corp | Wireless transmitter |
| WO2004010617A1 (en) * | 2002-07-19 | 2004-01-29 | Skylight Ag | Key for a remote-control locking system |
| CN1499219A (en) * | 2002-11-05 | 2004-05-26 | 朱景军 | 'Handest-probe' type Distance warner |
| CN2768321Y (en) * | 2004-12-07 | 2006-03-29 | 乐金电子(中国)研究开发中心有限公司 | Key beep-pager |
| CN101932481A (en) * | 2008-01-31 | 2010-12-29 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Vehicle key, and method for locating a motor vehicle within a close range with the help of a vehicle key |
| CN201804441U (en) * | 2010-03-23 | 2011-04-20 | 比亚迪股份有限公司 | Auxiliary vehicle finding device |
| CN102287079A (en) * | 2010-06-18 | 2011-12-21 | 上海市静安区教育学院附属学校 | Car key |
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| Publication number | Publication date |
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| CN102852390A (en) | 2013-01-02 |
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