CN204789981U - Wireless beacon sound positioning system - Google Patents
Wireless beacon sound positioning system Download PDFInfo
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- CN204789981U CN204789981U CN201520407015.XU CN201520407015U CN204789981U CN 204789981 U CN204789981 U CN 204789981U CN 201520407015 U CN201520407015 U CN 201520407015U CN 204789981 U CN204789981 U CN 204789981U
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- sound
- circuit
- positioning system
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- wireless beacon
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Abstract
The utility model belongs to the technical field of electronic circuit and radio communication, concretely relates to wireless beacon sound positioning system, including power module, sound emitter and sound receiving arrangement, the power provides working power supply voltage for sound emitter and sound receiving arrangement, sound generating device includes frequency generating circuit, sound broadcast circuit and sound transmitting circuit, sound receiving arrangement includes sound receiving antenna, wave filter, comparator and central controller, sound receiving arrangement still includes sound receiving circuit and sound signal amplification circuit, the utility model discloses a sound beacon positioning system low cost, the location is also more accurate simultaneously.
Description
Technical field
The utility model belongs to electronic circuit and radio communication technology field, is specifically related to a kind of wireless beacon sound positioning system.
Background technology
Traditional sound localization means have GPS location, base station triangle polyester fibre, satnav, laser positioning etc., the shortcoming of these localization methods, all cannot use in particular surroundings, such as, in indoor, mansion, buildings, GPS, satnav do not receive signal and all can not use, at special occasions such as mines, the power density of laser positioning, radiolocation is higher, probably explosion caused inside these hazardous areas.
Utility model content
The purpose of this utility model is solve the problems referred to above of prior art, and provide a kind of wireless beacon sound positioning system of cheap, accurate positioning, to achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of wireless beacon sound positioning system, it is characterized in that: comprise power module, sound radiating devices and sound receiver, described power supply provides working power voltage for sound radiating devices and sound receiver, described sound generating apparatus comprises frequency generating circuit, sound playing circuit and sound radiating circuit, described frequency generating circuit is connected with sound playing circuit and sound radiating circuit respectively, described sound receiver comprises acoustic reception antenna, wave filter, comparer and central controller, described acoustic reception antenna passes through wave filter successively, comparer is connected with central controller, described sound receiver also comprises acoustic reception circuit and sound signal amplifying circuit, described acoustic reception circuit passes through sound signal amplifying circuit successively, comparer is connected with central controller,
Preferably, described frequency generating circuit adopts 555 timers to produce the frequency signal of 6kHz.
Preferably, described sound playing circuit adopts loudspeaker to play, and described audio emission circuit adopts NRF2401 wireless launcher.
Preferably, described wave filter adopts UAF42 narrow band filter, and described comparer adopts LM393 voltage comparator.
Preferably, described sound signal amplifying circuit adopts LM358 amplifier to amplify the voice signal received, the voice signal that described acoustic reception circuit adopts microphones sound radiating devices to send.
Preferably, described central controller adopts STM32F103ZET6 single-chip microcomputer.
Sound beacon positioning system cost of the present utility model is very cheap, compared to existing various positioning system, cost is minimum, positioning precision is more accurate simultaneously, its positioning precision can reach ± 5cm, is very suitable for indoor positioning, and parking lot is located, status, megastore etc., also may be used for the status of particular surroundings as the catastrophe risk such as tunnel, mine occasion simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model example or technical scheme of the prior art, introduce doing accompanying drawing required in embodiment or description of the prior art simply below, apparently, accompanying drawing in the following describes is only examples more of the present utility model, to those skilled in the art, do not paying under creationary prerequisite, other accompanying drawing can also obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of wireless beacon sound positioning system of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model example, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1, a kind of wireless beacon sound positioning system, comprise power module, sound radiating devices and sound receiver, described power supply provides working power voltage for sound radiating devices and sound receiver, described sound generating apparatus comprises frequency generating circuit, sound playing circuit and sound radiating circuit, described frequency generating circuit is connected with sound playing circuit and sound radiating circuit respectively, described sound receiver comprises acoustic reception antenna, wave filter, comparer and central controller, described acoustic reception antenna passes through wave filter successively, comparer is connected with central controller, described sound receiver also comprises acoustic reception circuit and sound signal amplifying circuit, described acoustic reception circuit passes through sound signal amplifying circuit successively, comparer is connected with central controller, in the utility model embodiment, described wave filter adopts UAF42 narrow band filter, described comparer adopts LM393 voltage comparator, described sound signal amplifying circuit adopts LM358 amplifier to amplify the voice signal received, the voice signal that described acoustic reception circuit adopts microphones sound radiating devices to send, described central controller adopts STM32F103ZET6 single-chip microcomputer.
In the utility model embodiment, described frequency generating circuit adopts 555 timers to produce the frequency signal of 6kHz, described sound playing circuit adopts loudspeaker to play, described audio emission circuit adopts NRF2401 wireless launcher, the frequency signal of 6kHz is as sound source generation signal, to play respectively through speakers generate sound, thus the sound of generation is propagated to surrounding, meanwhile, the frequency signal of 6kHz generates wireless beacon through NRF2401 wireless launcher and launches to surrounding, tell that sound receiver has sound beacon to send in this way, then start sound receiver.
In the utility model embodiment, after starting sound receiver, acoustic reception antenna constantly receives wireless beacon, and send into UAF42 narrow band filter, its frequency range is the 2.5GHz of frequency range, reject interference noise, then the frequency of sound wave signal of 6kHz is restored, meanwhile, the sound that loudspeaker sends is after exporting through the modulation of acoustic reception circuit, undertaken amplifying by LM358 amplifier again and input LM393 voltage comparator, the sound that described acoustic reception circuit adopts microphones loudspeaker to send, now, the 6kHz frequency of sound wave signal that UAF42 narrow band filter exports and the voice signal that microphone exports compare the voltage signal of adjudicating and exporting some cycles through LM393 voltage comparator, again by the input channel of STM32F103ZET6 timer internal 1, calculate the mistiming that sound arrives sound receiver in two different ways, output time is poor simultaneously for central controller.
In sum, the utility model utilizes radiobeacon to produce a radio signal simultaneously, and the 2.5GHz being by radio band receives, and can say that by the speed of this CPCH reception voice signal be 3 × 10
8m/s, negligible inside positioning system of the present utility model, only need pay close attention to the time that voice signal arrives, therefore, the sound sent is caught by the input channel of the timer 1 of STM32F103ZET6 inside, the mistiming that sound arrives anchor point can be obtained, just can determine distance by mistiming T × 340m/s, with the position at location sound emitter place.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; allly to use within novel spirit and principle at this, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in utility model.
Claims (6)
1. a wireless beacon sound positioning system, it is characterized in that: comprise power module, sound radiating devices and sound receiver, described power supply provides working power voltage for sound radiating devices and sound receiver, described sound generating apparatus comprises frequency generating circuit, sound playing circuit and sound radiating circuit, described frequency generating circuit is connected with sound playing circuit and sound radiating circuit respectively, described sound receiver comprises acoustic reception antenna, wave filter, comparer and central controller, described acoustic reception antenna passes through wave filter successively, comparer is connected with central controller, described sound receiver also comprises acoustic reception circuit and sound signal amplifying circuit, described acoustic reception circuit passes through sound signal amplifying circuit successively, comparer is connected with central controller.
2. a kind of wireless beacon sound positioning system according to claim 1, is characterized in that: described frequency generating circuit adopts 555 timers to produce the frequency signal of 6kHz.
3. a kind of wireless beacon sound positioning system according to claim 1, is characterized in that: described sound playing circuit adopts loudspeaker to play, and described audio emission circuit adopts NRF2401 wireless launcher.
4. a kind of wireless beacon sound positioning system according to claim 1, is characterized in that: described wave filter adopts UAF42 narrow band filter, and described comparer adopts LM393 voltage comparator.
5. a kind of wireless beacon sound positioning system according to claim 1, it is characterized in that: described sound signal amplifying circuit adopts LM358 amplifier to amplify the voice signal received, the voice signal that described acoustic reception circuit adopts microphones sound radiating devices to send.
6. a kind of wireless beacon sound positioning system according to claim 1, is characterized in that: described central controller adopts STM32F103ZET6 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407015.XU CN204789981U (en) | 2015-06-12 | 2015-06-12 | Wireless beacon sound positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407015.XU CN204789981U (en) | 2015-06-12 | 2015-06-12 | Wireless beacon sound positioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204789981U true CN204789981U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520407015.XU Expired - Fee Related CN204789981U (en) | 2015-06-12 | 2015-06-12 | Wireless beacon sound positioning system |
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| Country | Link |
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| CN (1) | CN204789981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977563A (en) * | 2015-06-12 | 2015-10-14 | 广西大学 | Radio beacon sound positioning system |
-
2015
- 2015-06-12 CN CN201520407015.XU patent/CN204789981U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977563A (en) * | 2015-06-12 | 2015-10-14 | 广西大学 | Radio beacon sound positioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |