CN102256005A - Ultrasonic local mobile phone positioning system and positioning method thereof - Google Patents
Ultrasonic local mobile phone positioning system and positioning method thereof Download PDFInfo
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- CN102256005A CN102256005A CN2011100960182A CN201110096018A CN102256005A CN 102256005 A CN102256005 A CN 102256005A CN 2011100960182 A CN2011100960182 A CN 2011100960182A CN 201110096018 A CN201110096018 A CN 201110096018A CN 102256005 A CN102256005 A CN 102256005A
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- 230000004807 localization Effects 0.000 claims description 7
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Abstract
An ultrasonic local mobile phone positioning system and a positioning method thereof relate to the technical field of mobile equipment positioning and solve the technical problem of improving positioning accuracy. The system comprises a mobile phone, a positioning server and a plurality of ultrasonic coding pulse transmitting devices; the ultrasonic coding pulse transmitting device comprises a single chip microcomputer and a piezoelectric type ultrasonic transmitting head; the single chip microcomputer in each ultrasonic coding pulse transmitting device is provided with a unique binary equipment code; the mobile phone is connected with a positioning server through a wireless network; each ultrasonic coding pulse transmitting device continuously transmits a coding ultrasonic signal compiled according to binary equipment codes; and when the mobile phone enters the detection area, the coded ultrasonic signals are received through the microphone, the received coded ultrasonic signals are matched, and then the name of the detection area is displayed according to the matching result. The system provided by the invention can judge whether the mobile phone enters a small area such as a shop or an office.
Description
Technical field
The present invention relates to the positioning of mobile equipment technology, particularly relate to the technology of a kind of ultrasonic wave local mobile phone positioning system and localization method thereof.
Background technology
Existing mobile phone positioning system all utilizes gps satellite to realize the location, though the gps satellite navigation system can be used for measuring whether a certain on the ground zone of mobile phone, but its accuracy is lower, can only measure mobile phone and enter a bigger zone, can't judge whether mobile phone has entered less zones such as shop, office.
Summary of the invention
At the defective that exists in the above-mentioned prior art, technical problem to be solved by this invention provides a kind of positioning accuracy high ultrasonic wave local mobile phone positioning system and localization method thereof.
In order to solve the problems of the technologies described above, a kind of ultrasonic wave local mobile phone positioning system provided by the present invention comprises mobile phone, it is characterized in that: also comprise location-server, and a plurality of ultrasonic wave coded pulse emitters that are used to launch ultrasonic signal;
Described ultrasonic wave coded pulse emitter comprises single-chip microcomputer, optical coupling isolation circuit, amplifying circuit and piezoelectric ultrasonic emitting head; Described single-chip microcomputer is provided with a pulse signal output end, and its pulse signal output end connects the piezoelectric ultrasonic emitting head through optical coupling isolation circuit, amplifying circuit successively;
Single-chip microcomputer in each ultrasonic wave coded pulse emitter is equipped with a unique binary device coding;
Described mobile phone connects location-server through wireless network, and is built-in with the microphone that is used for received ultrasonic signal in mobile phone, reaches ultrasonic signal receiver module, device coding decoder module;
Described ultrasonic signal receiver module is provided with ultrasonic signal input and signal output part, and its ultrasonic signal input connects microphone, its signal output part connection device coding and decoding module.
Further, described single-chip microcomputer is provided with a plurality of code signal inputs, and its each code signal input respectively connects a coding DIP switch; Each the ultrasonic wave coded pulse emitter all single-chip microcomputer that be this device of each coding DIP switch by this device is set a unique binary device and is encoded, a bits of coded of the corresponding binary device coding of each coding DIP switch, the pairing bits of coded of coding DIP switch of each closure is 0, and the pairing bits of coded of coding DIP switch of each disconnection is 1.
Further, described amplifying circuit is made up of five reversers, is respectively first reverser, second reverser, the 3rd reverser, the 4th reverser, the 5th reverser;
Described second reverser, the 3rd reverser composition parallel with one another first return circuit, described the 4th reverser, the 5th reverser composition parallel with one another second return circuit;
Described optical coupling isolation circuit comprises opto-coupler chip and filter circuit;
The input of described opto-coupler chip connects the pulse signal output end of single-chip microcomputer, its output is divided into two-way behind filter circuit, one tunnel electrode receiving the piezoelectric ultrasonic emitting head successively through first reverser, first return circuit wherein, another electrode of piezoelectric ultrasonic emitting head is received in another second return circuit, road.
Further, an electrode of described piezoelectric ultrasonic emitting head is received positive voltage through a pull-up resistor, and another electrode is received positive voltage through another pull-up resistor.
Further, described piezoelectric ultrasonic emitting head is a wide-angle ultrasonic wave emitting head.
The localization method of ultrasonic wave local mobile phone positioning system provided by the present invention, it is characterized in that: a ultrasonic wave coded pulse emitter is installed in each surveyed area, and is deposited the binary device coding of the single-chip microcomputer in each ultrasonic wave coded pulse emitter and surveyed area title that each ultrasonic wave coded pulse emitter is installed in mobile phone;
Single-chip microcomputer in each ultrasonic wave coded pulse emitter all continues to send coded pulse signal to the piezoelectric ultrasonic emitting head in this device according to the binary device coding of self, by the piezoelectric ultrasonic emitting head coded pulse signal is converted to behind the ultrasonic signal of encoding to external emission;
Wherein, described coded pulse signal is made up of long pulse signal, short pulse signal and bell idles, it is that 1 bits of coded and value are 0 bits of coded that described long pulse signal, short pulse signal are respectively applied for expression binary device coding intermediate value, and the number of pulses of long pulse signal is greater than the number of pulses of short pulse signal, all insert a bell idles between per two pulse signals, described bell idles is meant low level or the high level of persistence length more than or equal to two number of pulses;
When mobile phone enters surveyed area, its built-in ultrasonic signal receiver module receives the coding ultrasonic signal that the ultrasonic wave coded pulse emitter in the surveyed area sends by microphone, and the coding ultrasonic signal that will receive is real-time transmitted to the device coding decoder module after being converted to coded pulse signal, the device coding decoder module is binary device coding back with the coded pulse signal real-time decoding that receives and the binary device coding of mobile phone EMS memory storage mates, and the match is successful, and the back shows on mobile phone screen is equipped with and the encode surveyed area title of corresponding ultrasonic wave coded pulse emitter of the binary device that mates.
Further, the forwarding step of the lasting transmission of the single-chip microcomputer in described ultrasonic wave coded pulse emitter coded pulse signal is as follows:
1) reads in first coding place value that binary device is encoded;
2) if the coding place value of reading in is 1, then send a long pulse signal,, then send a short pulse signal if the coding place value of reading in is 0;
3) send a bell idles;
4) if arrived last bits of coded of binary device coding, then go to step 1, otherwise then go to step 5;
5) read in the next one coding place value that binary device is encoded;
6) go to step 2;
The step of built-in device coding decoder module decoding and coding pulse signal is as follows in the mobile phone:
1) an isometric coding sequence of bits of coded of encoding with binary device is set, and first bits of coded in this sequence is set to the present encoding position;
2) continue the received pulse signal to receiving a bell idles;
3) detect the pulse signal length continue to receive, if the pulse signal that receives is a long pulse then the present encoding place value is set to 1, if the pulse signal that receives is a short pulse then the present encoding place value is set to 0;
4), otherwise then go to step 5 if arrived last bits of coded of coding sequence then the end of decoding;
5) get the next bits of coded of coding sequence, and this bits of coded is set to the present encoding position;
6) go to step 2.
Ultrasonic wave local mobile phone positioning system provided by the invention and localization method thereof, a ultrasonic wave coded pulse emitter is installed in each surveyed area, utilize ultrasonic wave coded pulse emitter to continue the launching code ultrasonic signal, microphone received code ultrasonic signal by carrying when mobile phone enters surveyed area, and the coding ultrasonic signal that receives mated, show the surveyed area title according to matching result then, thereby realize the mobile phone location, its positioning accuracy can judge far above existing gps satellite navigation system whether mobile phone has entered the shop, the zone that office etc. are less.
Description of drawings
Fig. 1 is the structured flowchart of the ultrasonic wave local mobile phone positioning system of the embodiment of the invention;
Fig. 2 is the circuit diagram of the ultrasonic wave coded pulse emitter in the ultrasonic wave local mobile phone positioning system of the embodiment of the invention.
Embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
As shown in Figure 1, a kind of ultrasonic wave local mobile phone positioning system that the embodiment of the invention provided comprises mobile phone, it is characterized in that: also comprise location-server, and a plurality of ultrasonic wave coded pulse emitters that are used to launch ultrasonic signal;
As shown in Figure 2, described ultrasonic wave coded pulse emitter comprises single-chip microcomputer U1, optical coupling isolation circuit, amplifying circuit and piezoelectric ultrasonic emitting head T; Described single-chip microcomputer U1 is provided with a pulse signal output end P1.0, and its pulse signal output end P1.0 connects piezoelectric ultrasonic emitting head T through optical coupling isolation circuit, amplifying circuit successively;
Single-chip microcomputer U1 in each ultrasonic wave coded pulse emitter is equipped with a unique binary device coding;
Described mobile phone connects location-server through wireless network, and is built-in with the microphone that (not shown) is used for received ultrasonic signal in mobile phone, reaches ultrasonic signal receiver module, device coding decoder module;
Described ultrasonic signal receiver module is provided with ultrasonic signal input and signal output part, and its ultrasonic signal input connects microphone, its signal output part connection device coding and decoding module.
As shown in Figure 2, in the embodiment of the invention, described single-chip microcomputer U1 be provided with 15 code signal inputs (P2.0-P2.7, P3.0-P3.6), its each code signal input respectively connect one the coding DIP switch (K1-K15); Each the ultrasonic wave coded pulse emitter all single-chip microcomputer U1 that be this device of each coding DIP switch (K1-K15) by this device is set a unique binary device and is encoded, a bits of coded of the corresponding binary device coding of each coding DIP switch, the pairing bits of coded of coding DIP switch of each closure is 0, and the pairing bits of coded of coding DIP switch of each disconnection is 1.
As shown in Figure 2, in the embodiment of the invention, described amplifying circuit is made up of five reversers, and described five reversers all are built in the same reverser chip, is respectively the first reverser U3A, the second reverser U3B, the 3rd reverser U3C, the 4th reverser U3D, the 5th reverser U3E;
The described second reverser U3B, the 3rd reverser U3C composition parallel with one another first return circuit, described the 4th reverser U3D, the 5th reverser U3E composition parallel with one another second return circuit;
Described optical coupling isolation circuit comprises opto-coupler chip U2, reaches the filter circuit of being made up of filter capacitor C1, filter resistance R3;
The input of described opto-coupler chip U2 connects the pulse signal output end P1.0 of single-chip microcomputer U1, and through pull-up resistor R1 connection high level, its output connects positive voltage through a pull-up resistor R2, and behind filter circuit, be divided into two-way, one tunnel electrode receiving piezoelectric ultrasonic emitting head T successively through the first reverser U3A, first return circuit wherein, another electrode of piezoelectric ultrasonic emitting head T is received in another second return circuit, road.
As shown in Figure 2, in the embodiment of the invention, the electrode of described piezoelectric ultrasonic emitting head T is received positive voltage through a pull-up resistor R4, another electrode is received positive voltage through another pull-up resistor R5, can improve the driving force of amplifying circuit output high level so on the one hand, can increase the damping of piezoelectric ultrasonic emitting head on the other hand, shorten its free-running time.
In the embodiment of the invention, the model of described opto-coupler chip U2 is 6N137, and the model of described reverser chip is 74LS04.
In the embodiment of the invention, the model of described single-chip microcomputer U1 is AT89C51, and the model of described piezoelectric ultrasonic emitting head T is TCT40-16T, also can use other wide-angle ultrasonic wave emitting head during practical application.
In the embodiment of the invention, built-in ultrasonic signal receiver module is that model is the ultrasonic wave receiving chip of CX20106A in the described mobile phone, and described device coding decoder module is built among the mobile phone CPU.
The localization method of the ultrasonic wave local mobile phone positioning system that the embodiment of the invention provided, it is characterized in that: a ultrasonic wave coded pulse emitter is installed in each surveyed area, and is deposited the binary device coding of the single-chip microcomputer in each ultrasonic wave coded pulse emitter and surveyed area title that each ultrasonic wave coded pulse emitter is installed in mobile phone;
Single-chip microcomputer in each ultrasonic wave coded pulse emitter all continues to send coded pulse signal to the piezoelectric ultrasonic emitting head in this device according to the binary device coding of self, by the piezoelectric ultrasonic emitting head coded pulse signal is converted to behind the ultrasonic signal of encoding to external emission;
Wherein, described coded pulse signal is made up of long pulse signal, short pulse signal and bell idles, it is that 1 bits of coded and value are 0 bits of coded that described long pulse signal, short pulse signal are respectively applied for expression binary device coding intermediate value, and the number of pulses of long pulse signal is greater than the number of pulses of short pulse signal, all insert a bell idles between per two pulse signals, described bell idles is meant low level or the high level of persistence length more than or equal to two number of pulses;
When mobile phone enters surveyed area, its built-in ultrasonic signal receiver module receives the coding ultrasonic signal that the ultrasonic wave coded pulse emitter in the surveyed area sends by microphone, and the coding ultrasonic signal that will receive is real-time transmitted to the device coding decoder module after being converted to coded pulse signal, the device coding decoder module is binary device coding back with the coded pulse signal real-time decoding that receives and the binary device coding of mobile phone EMS memory storage mates, and the match is successful, and the back shows on mobile phone screen is equipped with and the encode surveyed area title of corresponding ultrasonic wave coded pulse emitter of the binary device that mates.
In the embodiment of the invention, the forwarding step of the lasting transmission of the single-chip microcomputer in described ultrasonic wave coded pulse emitter coded pulse signal is as follows:
1) reads in first coding place value that binary device is encoded;
2) if the coding place value of reading in is 1, then send a long pulse signal,, then send a short pulse signal if the coding place value of reading in is 0;
3) send a bell idles;
4) if arrived last bits of coded of binary device coding, then go to step 1, otherwise then go to step 5;
5) read in the next one coding place value that binary device is encoded;
6) go to step 2.
In the embodiment of the invention, the step of built-in device coding decoder module decoding and coding pulse signal is as follows in the mobile phone:
1) an isometric coding sequence of bits of coded of encoding with binary device is set, and first bits of coded in this sequence is set to the present encoding position;
2) continue the received pulse signal to receiving a bell idles;
3) detect the pulse signal length continue to receive, if the pulse signal that receives is a long pulse then the present encoding place value is set to 1, if the pulse signal that receives is a short pulse then the present encoding place value is set to 0;
4), otherwise then go to step 5 if arrived last bits of coded of coding sequence then the end of decoding;
5) get the next bits of coded of coding sequence, and this bits of coded is set to the present encoding position;
6) go to step 2.
As shown in Figure 2, in the embodiment of the invention, the operation principle of described ultrasonic wave coded pulse emitter is as follows:
Single-chip microcomputer U1 is by the square-wave pulse signal of programming from 40 kHz of pulse signal output end P1.0 output, because the port power output of single-chip microcomputer U1 is not enough, 40 kHz square-wave pulse signals of its output are divided into two-way after light-coupled isolation and filtering, one the tunnel delivers to the electrode of piezoelectric ultrasonic emitting head T behind the one-level reverser, another electrode of piezoelectric ultrasonic emitting head T is delivered on another road behind the two-stage reverser, be transmitted in the air with the ultrasonic wave form by piezoelectric ultrasonic emitting head T at last, this form of recommending is added to two electrodes of piezoelectric ultrasonic emitting head T with pulse signal, can improve hyperacoustic emissive porwer.
Claims (6)
1. a ultrasonic wave local mobile phone positioning system comprises mobile phone, it is characterized in that: also comprise location-server, and a plurality of ultrasonic wave coded pulse emitters that are used to launch ultrasonic signal;
Described ultrasonic wave coded pulse emitter comprises single-chip microcomputer, optical coupling isolation circuit, amplifying circuit and piezoelectric ultrasonic emitting head; Described single-chip microcomputer is provided with a pulse signal output end, and its pulse signal output end connects the piezoelectric ultrasonic emitting head through optical coupling isolation circuit, amplifying circuit successively;
Single-chip microcomputer in each ultrasonic wave coded pulse emitter is equipped with a unique binary device coding;
Described mobile phone connects location-server through wireless network, and is built-in with the microphone that is used for received ultrasonic signal in mobile phone, reaches ultrasonic signal receiver module, device coding decoder module;
Described ultrasonic signal receiver module is provided with ultrasonic signal input and signal output part, and its ultrasonic signal input connects microphone, its signal output part connection device coding and decoding module.
2. system according to claim 1 is characterized in that: described single-chip microcomputer is provided with a plurality of code signal inputs, and its each code signal input respectively connects a coding DIP switch; Each the ultrasonic wave coded pulse emitter all single-chip microcomputer that be this device of each coding DIP switch by this device is set a unique binary device and is encoded, a bits of coded of the corresponding binary device coding of each coding DIP switch, the pairing bits of coded of coding DIP switch of each closure is 0, and the pairing bits of coded of coding DIP switch of each disconnection is 1.
3. system according to claim 1 is characterized in that: described amplifying circuit is made up of five reversers, is respectively first reverser, second reverser, the 3rd reverser, the 4th reverser, the 5th reverser;
Described second reverser, the 3rd reverser composition parallel with one another first return circuit, described the 4th reverser, the 5th reverser composition parallel with one another second return circuit;
Described optical coupling isolation circuit comprises opto-coupler chip and filter circuit;
The input of described opto-coupler chip connects the pulse signal output end of single-chip microcomputer, its output is divided into two-way behind filter circuit, one tunnel electrode receiving the piezoelectric ultrasonic emitting head successively through first reverser, first return circuit wherein, another electrode of piezoelectric ultrasonic emitting head is received in another second return circuit, road.
4. system according to claim 3 is characterized in that: an electrode of described piezoelectric ultrasonic emitting head is received positive voltage through a pull-up resistor, and another electrode is received positive voltage through another pull-up resistor.
5. system according to claim 1 is characterized in that: described piezoelectric ultrasonic emitting head is a wide-angle ultrasonic wave emitting head.
6. the localization method of ultrasonic wave local mobile phone positioning system according to claim 1, it is characterized in that: a ultrasonic wave coded pulse emitter is installed in each surveyed area, and is deposited the binary device coding of the single-chip microcomputer in each ultrasonic wave coded pulse emitter and surveyed area title that each ultrasonic wave coded pulse emitter is installed in mobile phone;
Single-chip microcomputer in each ultrasonic wave coded pulse emitter all continues to send coded pulse signal to the piezoelectric ultrasonic emitting head in this device according to the binary device coding of self, by the piezoelectric ultrasonic emitting head coded pulse signal is converted to behind the ultrasonic signal of encoding to external emission;
Wherein, described coded pulse signal is made up of long pulse signal, short pulse signal and bell idles, it is that 1 bits of coded and value are 0 bits of coded that described long pulse signal, short pulse signal are respectively applied for expression binary device coding intermediate value, and the number of pulses of long pulse signal is greater than the number of pulses of short pulse signal, all insert a bell idles between per two pulse signals, described bell idles is meant low level or the high level of persistence length more than or equal to two number of pulses;
When mobile phone enters surveyed area, its built-in ultrasonic signal receiver module receives the coding ultrasonic signal that the ultrasonic wave coded pulse emitter in the surveyed area sends by microphone, and the coding ultrasonic signal that will receive is real-time transmitted to the device coding decoder module after being converted to coded pulse signal, the device coding decoder module is binary device coding back with the coded pulse signal real-time decoding that receives and the binary device coding of mobile phone EMS memory storage mates, and the match is successful, and the back shows on mobile phone screen is equipped with and the encode surveyed area title of corresponding ultrasonic wave coded pulse emitter of the binary device that mates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100960182A CN102256005A (en) | 2011-04-18 | 2011-04-18 | Ultrasonic local mobile phone positioning system and positioning method thereof |
| CN 201110388359 CN102413425B (en) | 2011-04-18 | 2011-11-30 | Mobilephone positioning system and method |
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| CN2011100960182A CN102256005A (en) | 2011-04-18 | 2011-04-18 | Ultrasonic local mobile phone positioning system and positioning method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981164A (en) * | 2012-12-06 | 2013-03-20 | 北京凯思昊鹏软件工程技术有限公司 | Method supporting limited irregular space positioning |
| WO2014121434A1 (en) * | 2013-02-05 | 2014-08-14 | 北京印声科技有限公司 | Method and apparatus for positioning mobile device |
| CN104090266A (en) * | 2014-06-30 | 2014-10-08 | 上海科泰信息技术有限公司 | Voice frequency acoustic wave positioning system |
| CN104103269A (en) * | 2014-06-30 | 2014-10-15 | 上海科泰信息技术有限公司 | Audio identification electronic tag |
| CN104811497A (en) * | 2015-05-04 | 2015-07-29 | 苏州触达信息技术有限公司 | Ultrasonic positioning based interaction method and system |
| US10210500B2 (en) * | 2014-09-23 | 2019-02-19 | Mastercard International Incorporated | Ultrasonic triangulation for payments method and apparatus |
-
2011
- 2011-04-18 CN CN2011100960182A patent/CN102256005A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981164A (en) * | 2012-12-06 | 2013-03-20 | 北京凯思昊鹏软件工程技术有限公司 | Method supporting limited irregular space positioning |
| WO2014121434A1 (en) * | 2013-02-05 | 2014-08-14 | 北京印声科技有限公司 | Method and apparatus for positioning mobile device |
| CN104090266A (en) * | 2014-06-30 | 2014-10-08 | 上海科泰信息技术有限公司 | Voice frequency acoustic wave positioning system |
| CN104103269A (en) * | 2014-06-30 | 2014-10-15 | 上海科泰信息技术有限公司 | Audio identification electronic tag |
| US10210500B2 (en) * | 2014-09-23 | 2019-02-19 | Mastercard International Incorporated | Ultrasonic triangulation for payments method and apparatus |
| CN104811497A (en) * | 2015-05-04 | 2015-07-29 | 苏州触达信息技术有限公司 | Ultrasonic positioning based interaction method and system |
| CN104811497B (en) * | 2015-05-04 | 2018-05-18 | 苏州触达信息技术有限公司 | A kind of exchange method and system based on ultrasonic wave positioning |
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Open date: 20111123 |