CN107293016A - A kind of intelligent bicycle lock based on DTMF - Google Patents
A kind of intelligent bicycle lock based on DTMF Download PDFInfo
- Publication number
- CN107293016A CN107293016A CN201710501734.1A CN201710501734A CN107293016A CN 107293016 A CN107293016 A CN 107293016A CN 201710501734 A CN201710501734 A CN 201710501734A CN 107293016 A CN107293016 A CN 107293016A
- Authority
- CN
- China
- Prior art keywords
- dtmf
- bicycle lock
- signal
- intelligent bicycle
- dtmf signal
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
- H04M1/505—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies signals generated in digital form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72406—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by software upgrading or downloading
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a kind of intelligent bicycle lock based on DTMF, its system architecture mainly includes smart mobile phone App and intelligent bicycle lock；Intelligent bicycle lock includes dtmf signal collector, radio frequency data transmission component, GNSS alignment systems, bicycle lock mechanical part and core control system；Core control system is connected with the communication of dtmf signal collector, radio frequency data transmission component, GNSS alignment systems and bicycle lock mechanical part respectively.The present invention is a kind of electronic intelligent lock of band DTMF sensors, dtmf signal in the present invention is different from single-tone coding, dtmf signal is to be taken in 8 by the way of 2, respectively take an audio to be composited to represent 0~90 numbers and other function codes from two sound groups of height, along between each frequency of this 8 audio signals be not present harmonic relationships, the interference of spurious signal is greatly reduced, thus dtmf signal functional reliability particularly antijamming capability is very strong.
Description
Technical field
The invention belongs to electronic intelligent lock technical field, a kind of intelligent bicycle lock based on DTMF is particularly related to.
Background technology
Shared bicycle refers to that enterprise cooperates with government, in campus, subway station, bus station, residential block, shopping centre, public affairs
Service area etc. provides bicycle bicycle shared service altogether, is to share a kind of economic neomorph.In street corner, seemingly overnight,
Shared bicycle has arrived the stage spread unchecked, and each big city roadside is booked the shared bicycle of a variety of colors.Shared bicycle has been got over
To attract much attention more, because it meets low-carbon trip theory, bicycle is shared at present due to the development of bicycle lock,
The parking stake of disengaging bicycle that can be arbitrarily, Neng streets both sides are parked, and have been truly realized ready access upon use.Current existing skill
It is all that barcode scanning is unlocked that the lock of the shared bicycle of in the market is stereotyped in art, and this mode of barcode scanning unlocking has many problems：1、
Once Quick Response Code is smeared, bicycle is to use, and the mode of destruction is too simple, is a kind of waste for public resource；
2nd, the mobile phone barcode scanning difficulty increase under the bad environment of light.
The content of the invention
The present invention in order to overcome the shortcomings of prior art exist there is provided a kind of strong antijamming capability, good reliability based on
DTMF intelligent bicycle lock.
The present invention is achieved by the following technical solutions：A kind of intelligent bicycle lock based on DTMF, its system architecture master
To include smart mobile phone App and intelligent bicycle lock；Smart mobile phone App uses the output par, c of mobile phone, and intelligent bicycle lock includes DTMF
Signal picker, radio frequency data transmission component, GNSS alignment systems, bicycle lock mechanical part and core control system；Core
Control system respectively with dtmf signal collector, radio frequency data transmission component, GNSS alignment systems and bicycle lock mechanical part
Communication connection.
Smart mobile phone App, which provides to share, uses platform, and is organized into groups the dtmf signal of one section 20 simultaneously by simulating tone
Transmission comes out；DTMF signal group turns into：1-2 start bits；2-12 customer numbers；13-18 reserved space bits；18-20
Position is checking position.
Dtmf signal collector receives the DTMF data that smart machine is sent, and audio signal is converted into data signal.Core
Heart control system plays data processing and control action, including processing dtmf signal, processing GNSS positioning and rf data are whole
Reason and control bicycle lock mechanical part.GNSS alignment systems provide location information, and the function of bicycle lock mechanical part is lock
Car.
DTMF（Dual Tone Multi Frequency）Dual-tone multifrequency, is made up of high frequency group and low frequency group, height frequency group
Respectively comprising 4 frequencies, a high-frequency signal and low frequency signal superposition one composite signal of composition represent a numeral, right
Answer table as follows：
Dtmf signal has 16 codings, and signal includes two groups of audio signals, the task of decoder be by mathematic(al) manipulation it from
Time domain is transformed into frequency domain, then draws corresponding digital information.What it is due to chip processing is data signal, so must be input
Signal is digitized, then is handled with dsp chip.During frequency detecting, the fundamental wave and second harmonic of dtmf signal, dtmf signal are detected
Only there is higher energy on fundamental wave, and voice signal is then that stronger second harmonic is superimposed with fundamental wave, is detected secondary humorous
The effect of ripple is for distinguishing dtmf signal and language and music signal.
DTMF is by low frequency group（fb）With high frequency group（fa）Two class frequency signals are constituted, each data signal by low frequency group and
Any one of high frequency group is formed by stacking.According to CCITT suggestion, DTMF coding and decoding definition can be represented by the formula：
f(t)=A_{a}sin(2f_{a}t)+A_{b}sin(2f_{b}t)；
Two represent low, high audio value respectively in formula, and Ab and Aa represent that the sample value of bass group and high tone cluster quantifies baseline respectively,
And both Amplitude Rations are K=Ab/Aa (0.7<K<0.9).Provide simultaneously, corresponding to the nominal frequency in DTMF coding and decodings in hair
When sending, the frequency departure of dtmf signal should not be more than 1.5%, and the pickup electrode limit of bits per inch word should be more than 40ms, and connect
Receiving unit should be able to be reliably received to 2% deviation, and the signal of 30ms~40ms durations can be received normally.
The beneficial effects of the invention are as follows：The invention belongs to a kind of band DTMF sensors, core control, wireless portion and
Bicycle locks the electronic intelligent lock of mechanical part.Dtmf signal in the present invention is different from single-tone coding, and dtmf signal is used in 8
Take 2 mode, from two sound groups of height respectively take an audio to be composited and represent 0~90 numbers and other function codes,
Along with harmonic relationships are not present between each frequency of this 8 audio signals, the interference of spurious signal, thus DTMF are greatly reduced
Signal functional reliability particularly antijamming capability is very strong.
Brief description of the drawings
Fig. 1 is the system construction drawing of intelligent bicycle lock of the present invention based on DTMF；
Fig. 2 is the workflow diagram of intelligent bicycle lock of the present invention based on DTMF.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1 to Figure 2, a kind of intelligent bicycle lock based on DTMF, its system architecture mainly includes smart mobile phone App
And intelligent bicycle lock；Smart mobile phone App uses the output par, c of mobile phone, and intelligent bicycle lock includes dtmf signal collector, radio frequency number
According to transmission assembly, GNSS alignment systems, bicycle lock mechanical part and core control system；Core control system respectively with DTMF
Signal picker, radio frequency data transmission component, GNSS alignment systems and the communication connection of bicycle lock mechanical part.
Smart mobile phone App, which provides to share, uses platform, and is organized into groups the dtmf signal of one section 20 simultaneously by simulating tone
Transmission comes out；DTMF signal group turns into：1-2 start bits；2-12 customer numbers；13-18 reserved space bits；18-20
Position is checking position.Dtmf signal collector receives the DTMF data that smart machine is sent, and audio signal is converted into data signal.
Core control system plays data processing and control action, including processing dtmf signal, processing GNSS positioning and rf data
Arrange and control bicycle lock mechanical part.GNSS alignment systems provide location information, and the function of bicycle lock mechanical part is
Car locking.
The present invention based on DTMF intelligent bicycle lock unlocking be using flow：
1st, user clicks on the reception button that intelligent bicycle is locked, and the dtmf signal collector that intelligent bicycle is locked starts to receive
Dtmf signal；
2nd, user opens mobile phone A pp softwares and asks to use vehicle, and mobile phone A pp softwares change the information of user into one automatically
The analogue audio frequency dtmf signal of section 20, is organized into one section of voice signal, and send out；Wherein the information of user includes note
ID, the position of user and the current time of volume；
3rd, the signal being collected into is converted into character signal and issues core control system by dtmf signal collector；
4th, the essential information of the signal received and this bicycle is sent to by core control system by networks such as GSM/3G/LTE
Server；Wherein the essential information of bicycle includes the Vehicle Identify Number and positional information of bicycle, and positional information is positioned by GNSS
System is provided；
5th, server judges the accounts information of user, and judges whether that unlocking instruction can be issued；If user, which meets, uses car
Condition, then server issue unlocking instruction, core control system control machinery part is unlocked；If user, which does not meet, uses spoke
Part, then notify the incongruent reason of user, and user is using terminating.
The closing of intelligent bicycle lock of the present invention based on DTMF uses flow：1st, user shuts intelligent bicycle and locks it manually
Afterwards, core control system receives signal；2nd, the information shut and vehicle position information are sent to server by core control system,
Notify to use and terminate；3rd, server sends notification to the mobile phone of user, and user, which confirms to use, to terminate.
Finally it should be noted that above content is merely illustrative of the technical solution of the present invention, rather than to present invention protection
The limitation of scope, simple modification or equivalent substitution that one of ordinary skill in the art is carried out to technical scheme,
All without departing from the spirit and scope of technical solution of the present invention.
Claims (5)
1. a kind of intelligent bicycle lock based on DTMF, it is characterised in that：The system architecture of the intelligent bicycle lock based on DTMF
Mainly include smart mobile phone App and intelligent bicycle lock, the intelligent bicycle lock includes dtmf signal collector, radio frequency data transmission group
Part, GNSS alignment systems, bicycle lock mechanical part and core control system；The core control system respectively with the DTMF
Signal picker, radio frequency data transmission component, GNSS alignment systems and the communication connection of bicycle lock mechanical part.
2. a kind of intelligent bicycle lock based on DTMF according to claim 1, it is characterised in that：The smart mobile phone App
There is provided it is shared uses platform, and the dtmf signal of one section 20 is organized into groups by simulating tone and transmits out；The DTMF's
Signal group turns into：1-2 start bits；2-12 customer numbers；13-18 reserved space bits；18-20 are checking position.
3. a kind of intelligent bicycle lock based on DTMF according to claim 1 or 2, it is characterised in that：The dtmf signal
Collector receives the DTMF data that smart machine is sent, and audio signal is converted into data signal.
4. a kind of intelligent bicycle lock based on DTMF according to claim 1 or 2, it is characterised in that：The core control
System plays data processing and control action, including processing dtmf signal, processing GNSS positioning and rf data are arranged and controlled
Bicycle lock mechanical part processed.
5. a kind of intelligent bicycle lock based on DTMF according to claim 1 or 2, it is characterised in that：The GNSS positioning
System provides location information, and the function of the bicycle lock mechanical part is car locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710501734.1A CN107293016A (en) | 2017-06-27 | 2017-06-27 | A kind of intelligent bicycle lock based on DTMF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710501734.1A CN107293016A (en) | 2017-06-27 | 2017-06-27 | A kind of intelligent bicycle lock based on DTMF |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107293016A true CN107293016A (en) | 2017-10-24 |
Family
ID=60098703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710501734.1A Pending CN107293016A (en) | 2017-06-27 | 2017-06-27 | A kind of intelligent bicycle lock based on DTMF |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107293016A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2321892Y (en) * | 1997-02-18 | 1999-06-02 | 陈育民 | Radio remote controlled permulation lock |
| CN105931317A (en) * | 2016-04-11 | 2016-09-07 | 浙江大学 | System to achieve DTMF dial tone real-time decoding and voice-controlled lock detection |
| CN106600381A (en) * | 2016-12-28 | 2017-04-26 | 深圳市无电通科技有限公司 | Shared vehicle rental system and application thereof |
| CN106713431A (en) * | 2016-12-13 | 2017-05-24 | 上海众人网络安全技术有限公司 | Unlocking/locking control method and system for vehicle |
| CN106779880A (en) * | 2017-01-23 | 2017-05-31 | 上海量明科技发展有限公司 | Based on method, apparatus and system that reward is provided the user using shared bicycle |
| CN106741329A (en) * | 2016-12-09 | 2017-05-31 | 谭乃瑚 | Public lease bicycle Intelligent Passive lock system |
| CN106846584A (en) * | 2017-02-13 | 2017-06-13 | 上海量明科技发展有限公司 | Shared bicycle and its unlocking method, lockset, terminal and system |
| CN106846069A (en) * | 2017-02-21 | 2017-06-13 | 上海量明科技发展有限公司 | Method based on shared bicycle stop position charging, order car terminal and system |
| CN106875531A (en) * | 2017-03-24 | 2017-06-20 | 上海易码信息科技有限公司 | A kind of companion of shared bicycle smart lock |
-
2017
- 2017-06-27 CN CN201710501734.1A patent/CN107293016A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2321892Y (en) * | 1997-02-18 | 1999-06-02 | 陈育民 | Radio remote controlled permulation lock |
| CN105931317A (en) * | 2016-04-11 | 2016-09-07 | 浙江大学 | System to achieve DTMF dial tone real-time decoding and voice-controlled lock detection |
| CN106741329A (en) * | 2016-12-09 | 2017-05-31 | 谭乃瑚 | Public lease bicycle Intelligent Passive lock system |
| CN106713431A (en) * | 2016-12-13 | 2017-05-24 | 上海众人网络安全技术有限公司 | Unlocking/locking control method and system for vehicle |
| CN106600381A (en) * | 2016-12-28 | 2017-04-26 | 深圳市无电通科技有限公司 | Shared vehicle rental system and application thereof |
| CN106779880A (en) * | 2017-01-23 | 2017-05-31 | 上海量明科技发展有限公司 | Based on method, apparatus and system that reward is provided the user using shared bicycle |
| CN106846584A (en) * | 2017-02-13 | 2017-06-13 | 上海量明科技发展有限公司 | Shared bicycle and its unlocking method, lockset, terminal and system |
| CN106846069A (en) * | 2017-02-21 | 2017-06-13 | 上海量明科技发展有限公司 | Method based on shared bicycle stop position charging, order car terminal and system |
| CN106875531A (en) * | 2017-03-24 | 2017-06-20 | 上海易码信息科技有限公司 | A kind of companion of shared bicycle smart lock |
Non-Patent Citations (1)
| Title |
|---|
| 杨育霞等: "《信号分析与处理》", 31 December 2011 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2012253078B2 (en) | Data acquisition concentrator and data acquisition method | |
| CN106886807A (en) | A kind of electronic enclosure system, fence ground installation and parking management method | |
| US6987949B2 (en) | Wireless microphone system, voice receiving apparatus, and wireless microphone | |
| CN1639994A (en) | Analogue regenerative transponders, including regenerative transponder systems | |
| CN106130583A (en) | A kind of digital medium-frequency signal demodulation method based on FPGA | |
| CN102572616A (en) | Digital interphone with digital and analogue hybrid receiving function | |
| CN102642509A (en) | Embedding vehicle networking device and communication control method thereof | |
| CN109982451A (en) | Remote speech broadcasts cashing method | |
| CN202856745U (en) | Railway mobile communication interference real time monitor | |
| CN103916930A (en) | Message prompt method, system and device | |
| CN108124235A (en) | Command system and command methods | |
| CN107293016A (en) | A kind of intelligent bicycle lock based on DTMF | |
| CN105407163B (en) | Data processing system and method applied to anti money washing processing | |
| CN106254824A (en) | A kind of disaster information collection based on big-dipper satellite and disaster relief command system | |
| CN109739192A (en) | Control method and system under a kind of intelligent logistics system | |
| CN102438248B (en) | Method for solving radio frequency mutual interference of multi-mode multi-connected user equipment | |
| CN107770635A (en) | A kind of intercom, its control method and talkback system | |
| CN106781668A (en) | A kind of special vehicle parking space management system | |
| CN105163175A (en) | Television and mobile terminal combined positioning method and system | |
| CN201789522U (en) | European style beacon antenna signal demodulation processing device | |
| CN211063612U (en) | Intercom enhanced receiving system | |
| CN106781377A (en) | Kilowatt meter reading-out system, meter register method and meter copying device | |
| CN105450285B (en) | A kind of indirect communication device of ultrashort wave Vehicle mounted station | |
| CN208622112U (en) | A kind of Dual-channel reader | |
| CN106452475A (en) | Microwave receiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |
|
| RJ01 | Rejection of invention patent application after publication |