CN107042852A - Intelligent bicycle car lock system - Google Patents
Intelligent bicycle car lock system Download PDFInfo
- Publication number
- CN107042852A CN107042852A CN201710244100.2A CN201710244100A CN107042852A CN 107042852 A CN107042852 A CN 107042852A CN 201710244100 A CN201710244100 A CN 201710244100A CN 107042852 A CN107042852 A CN 107042852A
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- pin
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- stepper motor
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- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 230000006837 decompression Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 206010063900 Steal syndrome Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000002837 carbocyclic group Chemical group 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
- B62H5/00—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles
- B62H5/20—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles indicating unauthorised use, e.g. acting on signalling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
- B60R25/102—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device a signal being sent to a remote location, e.g. a radio signal being transmitted to a police station, a security company or the owner
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention provides a kind of intelligent bicycle car lock system.The intelligent bicycle car lock system of the present invention includes independent current source module, single chip control module, GPS module, gsm communication module, vibrating sensor module and stepper motor unlocking module.It is convenient and swift it is an advantage of the invention that controlling the switch of lock with SMS order in the past, it is to avoid the complex process that opened the lock with the key；With reference to GPS module and gsm communication module, user can obtain the location information of bicycle at any time, the problem of solving to be difficult to give for change after user's bicycle is lost；During lock is closed, if vibrating sensor perceives lock and occurs abnormal vibrations, gsm communication module can send warning message to user mobile phone, with auto-alarm function, be prevented effectively from the situation of user's bicycle loss.
Description
Technical field
The present invention relates to the safe antitheft field of the vehicles, and in particular to one kind application GPS technology, GSM network communication
Technology, stepper motor, the intelligent bicycle car lock system of multiple sensors and single-chip microcomputer.
Background technology
The life of bicycle and people are closely bound up, either ride instead of walk or body-building, and bicycle is all light and handy convenient with it, low
The advantages of carbocyclic ring is protected as many people selection.But it is increasing with bicycle, bicycle is gradually stared at by criminal
On, pilferage accident emerges in an endless stream.The area especially used in many bicycle gatherings, such as school, factory etc., bicycle is stolen
Steal phenomenon extremely serious.
Satellite navigation application industry by representative of GPS has turned into one of current internationally recognized eight big wireless industry.With
Progress, the increase of application demand of technology, GPS is with the distinguishing features such as round-the-clock, high accuracy, automation, high efficiency and its institute
Many powers such as unique location navigation, time service calibrating frequency, accurate measurement, the numerous application field of involved, make GPS
As the 3rd, the whole world economic new growing points of IT after cellular mobile communication and internet.
Gsm communication module, is that GSM radio frequency chips, baseband processing chip, memory, power discharging device etc. are integrated in into one piece
On wiring board, with independent operating system, GSM radio frequency processings, Base-Band Processing and the functional module for providing standard interface.By
Development for many years is perfect, and now highly developed, blind area is few, signal stabilization, automatic roaming, and communication distance is not by surrounding
Ambient influnence.
Stepper motor is the opened loop control element that electric impulse signal is changed into angular displacement or displacement of the lines.In the feelings of non-overload
Under condition, the rotating speed of motor, the position stopped being solely dependent upon the frequency and umber of pulse of pulse signal, without the shadow by load change
Ring, i.e., add a pulse signal to motor, motor then turns over a step angle.The presence of this linear relationship, adds stepping electricity
Machine only has periodic error and the features such as without accumulated error.So that being controlled in control fields such as speed, positions with stepper motor
It is unusual simple that system becomes.
It is single-chip microcomputer compact, light weight, cheap, it is widely used in various fields.Single-chip microcomputer it is most obvious excellent
Gesture, can exactly be embedded into various instruments, equipment.While continuing to develop with the world, people are no longer satisfied with manual behaviour
Make, thus the requirement to automation, mechanization is more and more.The appearance of sensor then realizes automatic detection and automatically controlled
Primary link.Enter today of information age in the mankind, all social activitieies of people are changed with acquisition of information and information
Centered on, the important means that sensor is changed as acquisition of information and information is the position of information science foremost, is
Realize one of information-based basic technology.
The content of the invention
To improve the security and validity of bicycle, the present invention provides a kind of simple, convenient, hommization intelligence voluntarily
Car car lock system.
The present invention is achieved through the following technical solutions：Intelligent bicycle car lock system, its feature includes：Independent current source mould
Block, single chip control module, GPS module, gsm communication module, vibrating sensor module and stepper motor unlocking module；It is described
GPS module receives location information and sends the data to single-chip microcomputer；The gsm communication module can be read to send short messages, and realize user
Interaction between lock；The vibrating sensor module collection vibration information is simultaneously converted into electric signal, and the output of the module connects
Connect the SCM system；The stepper motor unlocking module is connected with SCM system and the rotating forward of stepper motor can be controlled anti-
Turn, and then control the switch of lock；The output of the SCM system, connects gsm communication module；
1) the independent current source module includes：Decompression processing is done by Power convert LM2596 Voltage stabilizing modules, power supply is dropped
Voltage is required to 5V, LM2596 Voltage stabilizing modules make stabilization；
2) GPS module includes：Chip GPS-NEO-6 3 pin connect 3.3V power supplys by LED and resistance R1, and 7 pin connect
Ground, 8,9 pin are connected by resistance R4 with chip SMA 1 pin and chip I PEX 2 pin, 10,12 pin ground connection, 11 pin and chip
IPEX 2 pin are connected, and 13 pin ground connection, 18 pin are connected with chip 24,C32 5 pin, and 19 pin are connected with chip 24,C32 6 pin, 20 pin
It is connected with 1 pin of the J1 interfaces of single chip control module, 21 pin are connected with 2 pin of the J1 interfaces of single chip control module, 22 pin
Connect button cell over the ground and direct-to-ground capacitance C1,23 pin access 3.3V power supplys, 24 pin ground connection are connect by diode D1；Chip
1, the 3 pin access 5V power supplys of RT9193-33,2 pin ground connection, 4 pin meet direct-to-ground capacitance C6, and 5 pin meet direct-to-ground capacitance C4, C5；Chip
24C32 1,2,3,4 pin ground connection, 7 pin ground connection and electric capacity C2,8 pin connect 3.3V power supplys；
3) gsm communication module includes：SIM900A communication modules, 1,2 pin are coupled with single chip control module
42nd, 43 pin, 3 pin ground connection, 4 pin meet VCC；
4) the vibrating sensor module：Chip LM393 1 pin ground connection, 2 pin pass through resistance R4 and single chip control module
31 pin be connected, 3 pin access 5V power supplys, 4 pin connection potentiometer R2；Vibrating sensor shunt capacitance C1 connects LM393 cores over the ground
5 pin of piece；
5) the stepper motor unlocking module：Including driving stepper motor plate and stepper motor, chip ULN2003 1,2,
3rd, 37,36,35,34 pin of 4 pin respectively with single-chip microcomputer are connected, 8 pin ground connection, 9 pin connect direct-to-ground capacitance connection 5V power supplys, 13,14,
15th, 16 pin are connected by Thermal Cutoffs RP1, RP2, RP3, RP4 with LED D1, D2, D3, D4 respectively, and stepper motor passes through J2
Interface is connected with driving stepper motor plate；
6) single chip control module, using STC12C5A60S2 single chip control modules, its circuit crystal oscillator connects
Ground electric capacity C7, C8 are simultaneously connected with single chip control module 14,15 pin, form oscillating circuit；Electric capacity C6 is connected by resistance to earth R4
The pin of single chip control module 4 is connect, reset circuit is formed.
The beneficial effects of the invention are as follows：
1) a kind of intelligent bicycle car lock system, is connected using SIM900A communication modules with single-chip microcomputer, and user can be with
Stepper motor unlocking module is controlled by short message, realization is automatically controlled.
2) a kind of intelligent bicycle car lock system, using GPS positioning technology, user can at any time be obtained by short message
The positional information of oneself bicycle.
3) a kind of intelligent bicycle car lock system, using vibrating sensor, can pass through the power of vibration, automatic hair
Warning message is sent, intelligence degree is high, without manual control.
4) a kind of intelligent bicycle car lock system, using sub-module design method, design punched-plate wiring is uniform, makes
Whole device is readily disassembled and assembled.
Brief description of the drawings
Fig. 1 is intelligent bicycle car lock system structured flowchart
Fig. 2 is system integrated circuit schematic diagram
Fig. 3 is single chip control module schematic diagram
Fig. 4 is Power convert principle of stabilized voltage figure
Fig. 5 is GPS module schematic diagram
Fig. 6 is vibrating sensor module principle figure
Fig. 7 is stepper motor unlocking module schematic diagram
Embodiment
The embodiment to the present invention is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, circuit of the present invention includes：Independent current source module, single chip control module, GPS module,
Gsm communication module, vibrating sensor module and stepper motor unlocking module；GPS module is connected by J1 interfaces with single-chip microcomputer,
The gps data received is sent to single-chip microcomputer, user can obtain single-chip microcomputer processing by sending short message to gsm communication module
Gps data afterwards.Stepper motor unlocking module can be touched by single-chip microcomputer control, user by sending short message to gsm communication module
The corresponding different SCM programs of hair, control the Push And Release of lock.Vibrating sensor perceives vibration strong or weak change, with vibration frequency
Stable, connection LM393 comparator voltages become big and eventually exceed datum, cause output voltage to overturn and discovered by single-chip microcomputer
This move, can realize vibration triggering during lock closed mode, accordingly trigger SCM program, it is short that user can receive alarm
Letter is notified.
As shown in figure 3, single-chip microcomputer is STC12C5A60S2 in single chip control module.14 pin, 15 pin are connected to oscillating circuit,
Wherein crystal oscillator frequency is 11.0592MHz.When adding dc source needed for work to single-chip microcomputer, oscillator begins to vibrate
Come.The purpose of oscillating circuit is the clock pulse signal needed for providing that worked for single-chip microcomputer.Wherein 14 pin and 15 pin difference are over the ground
22pF electric capacity is connect, it is therefore an objective to prevent single-chip microcomputer self-excitation.I.e. simultaneously at 4 pin RST ends external one reset electricity
Road, it is therefore an objective to which when making electricity start-up operation on single-chip microcomputer, internal circuit is started working from original state.
As shown in figure 4, Power convert voltage stabilizing does decompression processing by Power convert LM2596 Voltage stabilizing modules, drop to power supply
5V requires voltage, and LM2596 Voltage stabilizing modules make stabilization, powered to STC12C5A60S2 single-chip microcomputers.
As shown in figure 5, when GPS module is in and navigates to positional information state, LED flicker, GPS module will be received
Gps data do not stop paying out and give single-chip microcomputer, when SCM program, which detects gsm communication module, receives " GPS " short message, trigger phase
Program is answered, the gps data after processing is sent to user in short message form automatically, checked for user.
As shown in fig. 6, vibrating sensor produces 0~4.7V analog voltage, wherein with the increase of oscillation intensity, output
Voltage also increases therewith.When vibration increases to certain value, more than the rated voltage of comparator, then occurs reversion and to single-chip microcomputer
Input data signal " 0 " or " 1 ".During lock is closed, if single-chip microcomputer is received from the low of vibrating sensor
Level signal, then start corresponding SCM program, sends short messages and is alarmed to user automatically.
As shown in fig. 7, when SCM program detects gsm communication module and receives " on " or " off " short message, single-chip microcomputer control
The output of 37,36,35,34 pin high level, i.e. the chip ULN2003 of molding the block pin of input 1,2,3,4 can access high level, core
The piece ULN2003 pin of output end 16,15,14,13 can export high level, and LED D1, D2, D3, D4 are lighted, convenient observation, now
Stepper motor conducting is unlocked or shut.Thermal Cutoffs RP1~RP4 can fuse when current of electric is excessive, play protection and make
With.
Above-described embodiment is only the implementation example done for the clear explanation present invention, and is not the reality to the present invention
The restriction of mode is applied, for those of ordinary skill in the field, can also be made on the basis of the above description other
Various forms of changes or variation.
Claims (1)
1. a kind of intelligent bicycle car lock system, its feature includes：Independent current source module, single chip control module, GPS module,
Gsm communication module, vibrating sensor module and stepper motor unlocking module；The independent current source module by decompression handle to
Single-chip microcomputer is powered；The GPS module receives location information and sends the data to single-chip microcomputer；The gsm communication module can be read
Send short messages, realize the interaction between user and lock；The vibrating sensor module collection vibration information is simultaneously converted into electric signal,
The output of the module connects the SCM system；The stepper motor unlocking module can control the rotating forward of stepper motor anti-
Turn, and then control the switch of lock；The output of the single chip control module, connects gsm communication module；
1) the independent current source module includes：Decompression processing is done by Power convert LM2596 Voltage stabilizing modules, power supply is dropped to 5V
It is required that voltage, LM2596 Voltage stabilizing modules make stabilization；
2) GPS module includes：Chip GPS-NEO-6 3 pin connect 3.3V power supplys, 7 pin ground connection, 8,9 by LED and resistance R1
Pin is connected by resistance R4 with chip SMA 1 pin and chip I PEX 2 pin, 10,12 pin ground connection, 2 pin of 11 pin and chip I PEX
It is connected, 13 pin ground connection, 18 pin are connected with chip 24,C32 5 pin, and 19 pin are connected with chip 24,C32 6 pin, 20 pin and single-chip microcomputer
1 pin of the J1 interfaces of control module is connected, and 21 pin are connected with 2 pin of the J1 interfaces of single chip control module, and 22 pin connect knob over the ground
Button battery simultaneously meets direct-to-ground capacitance C1,23 pin access 3.3V power supplys, 24 pin ground connection by diode D1；Chip RT9193-33 1,
3 pin access 5V power supplys, and 2 pin ground connection, 4 pin meet direct-to-ground capacitance C6, and 5 pin meet direct-to-ground capacitance C4, C5；Chip 24,C32 1,2,3,4 pin
Ground connection, 7 pin ground connection and electric capacity C2,8 pin connect 3.3V power supplys；
3) gsm communication module includes：SIM900A communication modules, 1,2 pin are coupled with the 42 of single chip control module, 43
Pin, 3 pin ground connection, 4 pin meet VCC；
4) the vibrating sensor module：Chip LM393 1 pin ground connection, 2 pin pass through resistance R4 and single chip control module 31
Pin is connected, 3 pin access 5V power supplys, 4 pin connection potentiometer R2；Vibrating sensor shunt capacitance C1 connects the 5 of LM393 chips over the ground
Pin；
5) the stepper motor unlocking module：Including driving stepper motor plate and stepper motor, 1,2,3, the 4 of chip ULN2003
37,36,35,34 pin of the pin respectively with single-chip microcomputer are connected, 8 pin ground connection, and 9 pin connect direct-to-ground capacitance connection 5V power supplys, 13,14,15,16
Pin is connected by Thermal Cutoffs RP1, RP2, RP3, RP4 with LED D1, D2, D3, D4 respectively, and stepper motor passes through J2 interfaces
It is connected with driving stepper motor plate；
6) single chip control module, using STC12C5A60S2 single chip control modules, its circuit crystal oscillator connection ground connection electricity
Hold C7, C8 and be connected with single chip control module 14,15 pin, form oscillating circuit；Electric capacity C6 is single by resistance to earth R4 connections
The pin of piece machine control module 4, forms reset circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710244100.2A CN107042852A (en) | 2017-04-14 | 2017-04-14 | Intelligent bicycle car lock system |
| PCT/CN2017/090279 WO2018188194A1 (en) | 2017-04-14 | 2017-06-27 | Smart bicycle lock system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710244100.2A CN107042852A (en) | 2017-04-14 | 2017-04-14 | Intelligent bicycle car lock system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107042852A true CN107042852A (en) | 2017-08-15 |
Family
ID=59544973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710244100.2A Pending CN107042852A (en) | 2017-04-14 | 2017-04-14 | Intelligent bicycle car lock system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107042852A (en) |
| WO (1) | WO2018188194A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832953A (en) * | 2018-07-13 | 2018-11-16 | 国家康复辅具研究中心 | A kind of wisdom bracelet monitoring limb activity information |
| CN115107911A (en) * | 2021-03-09 | 2022-09-27 | 宏碁股份有限公司 | Antitheft processing method for electric vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295429A (en) * | 2007-04-27 | 2008-10-29 | 天津市新盾科技有限公司 | Vehicle wireless alarm anti-theft equipment |
| CN204284272U (en) * | 2014-12-11 | 2015-04-22 | 三峡大学 | Based on the mountain bike hydraulic disc brake anti-theft device of ATMEGA16 |
| CN104554518A (en) * | 2015-01-07 | 2015-04-29 | 天津大学 | GSM communication based safety lock for motor vehicle |
| CN104691657A (en) * | 2015-03-26 | 2015-06-10 | 苏州大学 | Virtual key-based vehicle lock control system and smart vehicle lock comprising same |
| CN205345140U (en) * | 2016-02-04 | 2016-06-29 | 徐光辉 | Theft -proof device for bicycle |
| CN205365825U (en) * | 2015-12-14 | 2016-07-06 | 山东科技大学 | Public bicycle intelligence lock control system based on NFC technique |
| CN205440625U (en) * | 2016-01-04 | 2016-08-10 | 东北大学秦皇岛分校 | Bicycle intelligent system |
| WO2017028525A1 (en) * | 2015-08-14 | 2017-02-23 | 深圳市家信信息科技开发有限公司 | Intelligent electric bicycle control system, detection system, and control method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4199207B2 (en) * | 2005-03-23 | 2008-12-17 | 富士通テン株式会社 | Theft vehicle recovery support device and stolen vehicle recovery support method |
| CN105701893B (en) * | 2016-01-15 | 2018-08-17 | 上海应用技术学院 | A kind of novel intelligent car lock system |
| CN206704357U (en) * | 2017-04-14 | 2017-12-05 | 江南大学 | Intelligent bicycle car lock system |
-
2017
- 2017-04-14 CN CN201710244100.2A patent/CN107042852A/en active Pending
- 2017-06-27 WO PCT/CN2017/090279 patent/WO2018188194A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295429A (en) * | 2007-04-27 | 2008-10-29 | 天津市新盾科技有限公司 | Vehicle wireless alarm anti-theft equipment |
| CN204284272U (en) * | 2014-12-11 | 2015-04-22 | 三峡大学 | Based on the mountain bike hydraulic disc brake anti-theft device of ATMEGA16 |
| CN104554518A (en) * | 2015-01-07 | 2015-04-29 | 天津大学 | GSM communication based safety lock for motor vehicle |
| CN104691657A (en) * | 2015-03-26 | 2015-06-10 | 苏州大学 | Virtual key-based vehicle lock control system and smart vehicle lock comprising same |
| WO2017028525A1 (en) * | 2015-08-14 | 2017-02-23 | 深圳市家信信息科技开发有限公司 | Intelligent electric bicycle control system, detection system, and control method |
| CN205365825U (en) * | 2015-12-14 | 2016-07-06 | 山东科技大学 | Public bicycle intelligence lock control system based on NFC technique |
| CN205440625U (en) * | 2016-01-04 | 2016-08-10 | 东北大学秦皇岛分校 | Bicycle intelligent system |
| CN205345140U (en) * | 2016-02-04 | 2016-06-29 | 徐光辉 | Theft -proof device for bicycle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832953A (en) * | 2018-07-13 | 2018-11-16 | 国家康复辅具研究中心 | A kind of wisdom bracelet monitoring limb activity information |
| CN108832953B (en) * | 2018-07-13 | 2020-10-20 | 国家康复辅具研究中心 | Wisdom bracelet of monitoring limbs activity information |
| CN115107911A (en) * | 2021-03-09 | 2022-09-27 | 宏碁股份有限公司 | Antitheft processing method for electric vehicle |
| CN115107911B (en) * | 2021-03-09 | 2023-08-08 | 宏碁股份有限公司 | Antitheft processing method for electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018188194A1 (en) | 2018-10-18 |
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Application publication date: 20170815 |
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