CN109410353A - A kind of ETC electronics antiwithdrawal device and detection method - Google Patents
A kind of ETC electronics antiwithdrawal device and detection method Download PDFInfo
- Publication number
- CN109410353A CN109410353A CN201811295128.XA CN201811295128A CN109410353A CN 109410353 A CN109410353 A CN 109410353A CN 201811295128 A CN201811295128 A CN 201811295128A CN 109410353 A CN109410353 A CN 109410353A
- Authority
- CN
- China
- Prior art keywords
- mcu
- integrated circuit
- capacitor
- key
- gyroscope
- 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
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
- G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/126—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a housing, e.g. a box, a safe, or a room
- G08B13/128—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a housing, e.g. a box, a safe, or a room the housing being an electronic circuit unit, e.g. memory or CPU chip
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Finance (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Gyroscopes (AREA)
Abstract
The present invention relates to a kind of ETC electronics antiwithdrawal device and detection methods, including the first MCU, external connection module, tamper key, 2nd MCU, accelerometer and gyroscope, tamper key and external connection module are electrically connected with the first MCU, accelerometer and gyroscope are electrically connected by the 2nd MCU with the first MCU, external connection module includes key detection module and Bus- Speed Monitoring module, the following steps are included: 1) powered on to software, 2) the output angular velocity value w of gyroscope is read by the first MCU, 3) the acceleration value a of accelerometer is read by the first MCU, and by key detection module detect key there are situations, 4) acceleration value and magnitude of angular velocity are handled by data filtering processing, 5) when equipment is reversed, carry out result judgement, the ETC electronics antiwithdrawal device and detection method pass through Realize that, to whether the device is disassembled carry out comprehensive judgement, logic is careful in conjunction with accelerometer, gyroscope and key detection module, judgement is accurate, reduces the risk that equipment is disassembled transfer.
Description
Technical field
The present invention relates to a kind of ETC electronics antiwithdrawal device and detection methods.
Background technique
ETC (Electronic Toll Collection) no-stop charging system is current road and bridge state-of-the-art in the world
Charge method.Vehicle carried electronic label by being mounted in vehicle windscreen and the microwave antenna on the lane charge station ETC
Between microwave special short-range communication, backstage settlement process is carried out using Computer Networking and bank, to reach vehicle
The purpose of road and bridge expense can be paid by being not required to parking by toll on the road and bridge station, and the tamper design in existing ETC is to pass through physics mostly
The tamper mode of key, there are the risks of broken glass transfer.
Summary of the invention
The technical problem to be solved by the present invention is for overcome the deficiencies in the prior art, providing a kind of anti-dismounting of ETC electronics
It sets and detection method.
The technical solution adopted by the present invention to solve the technical problems is: a kind of ETC electronics antiwithdrawal device, including first
MCU, external connection module, tamper key, the 2nd MCU, accelerometer and gyroscope, the tamper key and external connection module and first
MCU electrical connection, the accelerometer and gyroscope are electrically connected by the 2nd MCU with the first MCU, and the external connection module includes key
Detection module and Bus- Speed Monitoring module.
It is electrically connected preferably, the accelerometer and gyroscope pass through data acquisition circuit with the 2nd MCU, the number
According to Acquisition Circuit include integrated circuit, first resistor, second resistance, 3rd resistor, the 4th resistance, first capacitor, the second capacitor,
Third capacitor and the 4th capacitor, the model MPU6050 of the integrated circuit, the data terminal of the 3rd resistor and integrated circuit
The clock signal terminal of connection, the second resistance and integrated circuit connects, and the data terminal of the integrated circuit passes through first resistor
The clock signal terminal of external 3.3V power supply, the integrated circuit passes through the external 3.3V power supply of the 4th resistance, the integrated circuit
The end CPOUT is grounded by first capacitor, the end CLKIN of the integrated circuit and the end GND ground connection, a termination of second capacitor
Ground, the other end of the second capacitor are connect with the vdd terminal of integrated circuit and outside 3.3V power supply respectively, the integrated circuit
By the 4th capacity earth, one end of the third capacitor is grounded at the end REGOUT, the other end of third capacitor respectively with integrated electricity
The end VLOGC on road is connected with outside 3.3V power supply.
A kind of detection method of ETC electronics antiwithdrawal device as described above, comprising the following steps:
1) software is powered on；
2) the output angular velocity value w of gyroscope is read by the first MCU, thus whether decision maker is reversed；
3) the acceleration value a of accelerometer is read by the first MCU, and key is detected by key detection module
Spoon there are situations, and the preset value that situation will be present is transferred to the first MCU；
4) acceleration value and magnitude of angular velocity are handled by data filtering processing；
5) when equipment is reversed, result judgement is carried out.
Preferably, acceleration value a is obtained by way of double equilibriums.
Preferably, the range of magnitude of angular velocity w is 15 ° -60 °.
The invention has the advantages that the ETC electronics antiwithdrawal device and detection method are by combining accelerometer, gyroscope
Realize that, to whether the device is disassembled carry out comprehensive judgement, logic is careful with key detection module, judgement is accurate, reduces and sets
The standby risk for being disassembled transfer.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the data acquisition circuit of ETC electronics antiwithdrawal device of the invention；
Fig. 2 is the logic decision flow chart of the detection method of ETC electronics antiwithdrawal device of the invention；
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
A kind of ETC electronics antiwithdrawal device, including the first MCU, external connection module, tamper key, the 2nd MCU, accelerometer and
Gyroscope, the tamper key and external connection module are electrically connected with the first MCU, and the accelerometer and gyroscope pass through the 2nd MCU
It is electrically connected with the first MCU, the external connection module includes key detection module and Bus- Speed Monitoring module.
It is electrically connected as shown in Figure 1, the accelerometer and gyroscope pass through data acquisition circuit with the 2nd MCU, it is described
Data acquisition circuit includes integrated circuit, first resistor, second resistance, 3rd resistor, the 4th resistance, first capacitor, the second electricity
Appearance, third capacitor and the 4th capacitor, the model MPU6050 of the integrated circuit, the number of the 3rd resistor and integrated circuit
It is connected according to end, the clock signal terminal of the second resistance and integrated circuit connects, and the data terminal of the integrated circuit passes through first
The clock signal terminal of the external 3.3V power supply of resistance, the integrated circuit passes through the external 3.3V power supply of the 4th resistance, the integrated electricity
The end CPOUT on road is grounded by first capacitor, the end CLKIN of the integrated circuit and the end GND ground connection, and the one of second capacitor
End ground connection, the other end of the second capacitor are connect with the vdd terminal of integrated circuit and outside 3.3V power supply respectively, the integrated circuit
By the 4th capacity earth, one end of the third capacitor is grounded at the end REGOUT, the other end of third capacitor respectively with integrated electricity
The end VLOGC on road is connected with outside 3.3V power supply.
A kind of detection method of ETC electronics antiwithdrawal device as described above, comprising the following steps:
1) software is powered on；
2) the output angular velocity value w of gyroscope is read by the first MCU, thus whether decision maker is reversed；
3) the acceleration value a of accelerometer is read by the first MCU, and key is detected by key detection module
Spoon there are situations, and the preset value that situation will be present is transferred to the first MCU；
4) acceleration value and magnitude of angular velocity are handled by data filtering processing；
5) when equipment is reversed, result judgement is carried out.
Preferably, acceleration value a is obtained by way of double equilibriums.
Preferably, the range of magnitude of angular velocity w is 15 ° -60 °.
When magnitude of angular velocity w exceed preset range, then determine that equipment is reversed.
The decision logic of this detection method is as follows:
When detecting that equipment is reversed, it is assumed that the first MCU reset signal, then it represents that unit state is normal, i.e. expression equipment
It is mounted, when preventing equipment installation operation, judges by accident；
When detecting that equipment is reversed, and the first MCU not reset signal, then detecting car key by key detection module is
It is no in the car, it is assumed that car key in the car, does not then illustrate that device is disassembled；
When detecting that equipment is reversed, and the first MCU not reset signal, and car key is detected by key detection module
In the car, then speed is acquired by vehicle speed sensor, when speed is not 0, then illustrates that device is removed；
When detecting that equipment is reversed, and the first MCU not reset signal, and car key is detected by key detection module
In the car, and speed is 0, then compares the acceleration value a of device with preset acceleration rate threshold, it is assumed that acceleration value is greater than
Preset acceleration rate threshold then illustrates that device is disassembled；
When detecting that equipment is reversed, and the first MCU not reset signal, and car key is detected by key detection module
In the car, and the acceleration value a of device is less than preset acceleration rate threshold, then illustrates that unit state is normal, is not disassembled.
Preset acceleration rate threshold is the accumulative acceleration value in 1 second, and empirical value is the correspondence of 1 gram of acceleration of gravity
Value can evade erroneous judgement caused by overturning in this way.
The calculation method of acceleration value:
Mainly according to v=at, the speed of t moment is speedIt is calculated by integrated acceleration
It arrives.
Definition: axFor acceleration rate threshold, ayFor empirical value, m, n are detection number, and data balancing processing method is taken double
Balanced mode, i.e. ax=(a1+a2+ ...+a19+a20)/m, ay=(a1+a2+ ...+a4+a5)/n, a=(ax+ay)/2；Wherein
M, n are related with equipment installation environment, can reach a preferable result according to test m=20, n=5.axAnd ayPass through sliding
The form of window constantly removes oldest data, and newest data are added, if a certain moment | a '-a | when > 1g,
The data are judged for abnormal data, abandon the data, while recording exceptional data frequency of occurrence, when the accumulative appearance of abnormal data is more
It is secondary, think that the data are normal again, and then obtain acceleration value a.
Using same method, magnitude of angular velocity w can be obtained.
In fact, the first MCU and the 2nd MCU can be the same MCU, the 2nd MCU, which can be considered as, to be operated on the first MCU
One end program.
Compared with prior art, the ETC electronics antiwithdrawal device and detection method are by combining accelerometer, gyroscope and key
Spoon detection module realizes that, to whether the device is disassembled carry out comprehensive judgement, logic is careful, and judgement is accurate, reduces equipment quilt
Dismantle the risk of transfer.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (5)
1. a kind of ETC electronics antiwithdrawal device, which is characterized in that including the first MCU, external connection module, tamper key, the 2nd MCU, add
Speedometer and gyroscope, the tamper key and external connection module are electrically connected with the first MCU, and the accelerometer and gyroscope pass through
2nd MCU is electrically connected with the first MCU, and the external connection module includes key detection module and Bus- Speed Monitoring module.
2. a kind of ETC electronics antiwithdrawal device, which is characterized in that the accelerometer and gyroscope pass through data acquisition circuit with
2nd MCU electrical connection, the data acquisition circuit include integrated circuit, first resistor, second resistance, 3rd resistor, the 4th electricity
Resistance, first capacitor, the second capacitor, third capacitor and the 4th capacitor, the model MPU6050 of the integrated circuit, the third
The clock signal terminal of the connection of the data terminal of resistance and integrated circuit, the second resistance and integrated circuit connects, the integrated electricity
For the data terminal on road by the external 3.3V power supply of first resistor, the clock signal terminal of the integrated circuit is external by the 4th resistance
The end CPOUT of 3.3V power supply, the integrated circuit is grounded by first capacitor, the end CLKIN of the integrated circuit and GND termination
Ground, second capacitor one end ground connection, the other end of the second capacitor respectively with the vdd terminal of integrated circuit and outside 3.3V power supply
Connection, the end REGOUT of the integrated circuit is by the 4th capacity earth, and one end of the third capacitor is grounded, third capacitor
The other end is connect with the end VLOGC of integrated circuit and outside 3.3V power supply respectively.
3. a kind of detection method of such as described in any item ETC electronics antiwithdrawal devices of claim 1-2, which is characterized in that including
Following steps:
1) software is powered on；
2) the output angular velocity value w of gyroscope is read by the first MCU, thus whether decision maker is reversed；
3) by the first MCU read accelerometer acceleration value a, and by key detection module detect key there are feelings
Condition, and the preset value that situation will be present is transferred to the first MCU；
4) acceleration value and magnitude of angular velocity are handled by data filtering processing；
5) when equipment is reversed, result judgement is carried out.
4. the detection method of ETC electronics antiwithdrawal device as claimed in claim 3, which is characterized in that acceleration value a passes through double equal
The mode of weighing apparatus obtains.
5. the detection method of ETC electronics antiwithdrawal device as claimed in claim 3, which is characterized in that the range of magnitude of angular velocity w is
15°-60°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811295128.XA CN109410353A (en) | 2018-11-01 | 2018-11-01 | A kind of ETC electronics antiwithdrawal device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811295128.XA CN109410353A (en) | 2018-11-01 | 2018-11-01 | A kind of ETC electronics antiwithdrawal device and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109410353A true CN109410353A (en) | 2019-03-01 |
Family
ID=65470911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811295128.XA Pending CN109410353A (en) | 2018-11-01 | 2018-11-01 | A kind of ETC electronics antiwithdrawal device and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109410353A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989421A (en) * | 2019-11-12 | 2020-04-10 | 惠州市德赛西威汽车电子股份有限公司 | Ultra-low power consumption OBU anti-disassembly detection system and method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020134836A1 (en) * | 2001-03-23 | 2002-09-26 | Cash Jerome E. | Systems and methods for event driven baggage management |
| CN102009714A (en) * | 2009-09-08 | 2011-04-13 | 东亚大学校产学协力团 | Antitheft method and system for motorcycles |
| CN204535717U (en) * | 2015-03-13 | 2015-08-05 | 北京握奇智能科技有限公司 | A kind of board units |
| CN104835274A (en) * | 2015-05-06 | 2015-08-12 | 广东欧珀移动通信有限公司 | Wearable device anti-theft method, apparatus and wearable device |
| CN105608821A (en) * | 2016-03-06 | 2016-05-25 | 朱亚伟 | Intelligent antitheft device based on accelerometer and MEMS gyroscope |
| WO2016201355A1 (en) * | 2015-06-12 | 2016-12-15 | Golduber Gary | System and methods for vehicle sharing |
| CN106570942A (en) * | 2016-07-25 | 2017-04-19 | 深圳成谷科技有限公司 | On-board unit of electronic no-parking charging system and anti-dismounting method of on-board unit |
| CN206213415U (en) * | 2016-10-25 | 2017-06-06 | 华南理工大学 | A kind of Intelligent bracelet system |
| US20180018864A1 (en) * | 2016-07-13 | 2018-01-18 | Palarum, LLC | Patient monitoring system |
| CN208021587U (en) * | 2017-12-18 | 2018-10-30 | 北京博创联动科技有限公司 | A kind of electric vehicle anti-theft device, system and electric vehicle |
-
2018
- 2018-11-01 CN CN201811295128.XA patent/CN109410353A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020134836A1 (en) * | 2001-03-23 | 2002-09-26 | Cash Jerome E. | Systems and methods for event driven baggage management |
| CN102009714A (en) * | 2009-09-08 | 2011-04-13 | 东亚大学校产学协力团 | Antitheft method and system for motorcycles |
| CN204535717U (en) * | 2015-03-13 | 2015-08-05 | 北京握奇智能科技有限公司 | A kind of board units |
| CN104835274A (en) * | 2015-05-06 | 2015-08-12 | 广东欧珀移动通信有限公司 | Wearable device anti-theft method, apparatus and wearable device |
| WO2016201355A1 (en) * | 2015-06-12 | 2016-12-15 | Golduber Gary | System and methods for vehicle sharing |
| CN105608821A (en) * | 2016-03-06 | 2016-05-25 | 朱亚伟 | Intelligent antitheft device based on accelerometer and MEMS gyroscope |
| US20180018864A1 (en) * | 2016-07-13 | 2018-01-18 | Palarum, LLC | Patient monitoring system |
| CN106570942A (en) * | 2016-07-25 | 2017-04-19 | 深圳成谷科技有限公司 | On-board unit of electronic no-parking charging system and anti-dismounting method of on-board unit |
| CN206213415U (en) * | 2016-10-25 | 2017-06-06 | 华南理工大学 | A kind of Intelligent bracelet system |
| CN208021587U (en) * | 2017-12-18 | 2018-10-30 | 北京博创联动科技有限公司 | A kind of electric vehicle anti-theft device, system and electric vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989421A (en) * | 2019-11-12 | 2020-04-10 | 惠州市德赛西威汽车电子股份有限公司 | Ultra-low power consumption OBU anti-disassembly detection system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103353299B (en) | High-precision vehicle-mounted road grade detection device and method | |
| CN107719409B (en) | The anti-slip Intelligent iron shoe of railway and its attitude detecting method with posture detection function | |
| CN103150929A (en) | Magnetic field sensor-based vehicle parking state detection system | |
| CN106289256A (en) | Signal calculated processing system based on two CSTR Yu FPGA architecture | |
| CN106504544A (en) | Detection method, the apparatus and system of rule riding are not conformed to | |
| CN206740146U (en) | A kind of electric bicycle alteration detecting device | |
| CN109410353A (en) | A kind of ETC electronics antiwithdrawal device and detection method | |
| CN209149364U (en) | A kind of ETC electronics antiwithdrawal device | |
| CN103251133B (en) | A kind of electronic cigarette control chip with lock function | |
| CN203217769U (en) | Automatic detection system for vehicle violation at crossing | |
| CN102455946B (en) | Detection and recovery circuit for exceptions of USB device, and method thereof | |
| CN203353677U (en) | Electronic cigarette control chip with locking function | |
| CN105006151A (en) | Dynamic vehicle detection method based on weak magnetic sensor | |
| CN204695402U (en) | Efficient electronic toll collection | |
| CN206312157U (en) | A kind of Anti-dismantling detection means of vehicle carried electronic label | |
| CN106707906A (en) | Attitude monitoring system of quadrotor aircraft | |
| CN104348482B (en) | Method in circuit, calibrating installation and the circuit | |
| CN106124995A (en) | Battery electric quantity checking device and mobile electronic device | |
| CN206726008U (en) | A kind of car accident information recording system | |
| CN202947728U (en) | Device for detecting inclination angle and correcting balance based on triaxial accelerometer | |
| CN208140133U (en) | A kind of gear position sensor based on relative space position | |
| CN205059536U (en) | Car anti -theft system based on GSM or GPS | |
| CN203551105U (en) | Accelerometer wireless network node module for vibration detection | |
| CN214067940U (en) | Wireless collision alarm device for height limiting frame | |
| CN112328100A (en) | Digital pen-like device and gesture recognition system and method for corresponding digital pen-like device |
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: 20190301 |
|
| RJ01 | Rejection of invention patent application after publication |