CN113928468A - Intelligent safety control system of electric bicycle - Google Patents
Intelligent safety control system of electric bicycle Download PDFInfo
- Publication number
- CN113928468A CN113928468A CN202111440452.8A CN202111440452A CN113928468A CN 113928468 A CN113928468 A CN 113928468A CN 202111440452 A CN202111440452 A CN 202111440452A CN 113928468 A CN113928468 A CN 113928468A
- Authority
- CN
- China
- Prior art keywords
- controller
- electric bicycle
- battery
- signal
- control system
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
-
- 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
-
- 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
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J3/00—Acoustic signal devices; Arrangement of such devices on cycles
- B62J3/10—Electrical devices
- B62J3/12—Buzzers; Horns with electrically driven airflow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
- B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J50/00—Arrangements specially adapted for use on cycles not provided for in main groups B62J1/00 - B62J45/00
- B62J50/20—Information-providing devices
- B62J50/21—Information-providing devices intended to provide information to rider or passenger
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
- B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/80—Accessories, e.g. power sources; Arrangements thereof
- B62M6/90—Batteries
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
- Alarm Systems (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses an intelligent safety control system of an electric bicycle, which is provided with a vibration sensor, wherein the vibration sensor outputs a sensing signal to a controller, the controller outputs an alarm signal to a loudspeaker, a power supply end of the controller is connected with a battery, a first positioning unit is arranged on a frame of the electric bicycle and is connected with the controller through a signal line, the controller is connected with a communication unit through a signal line and is in wireless communication with a mobile phone of a user through the communication unit, a pressure sensor is arranged below a cushion of the electric bicycle and outputs a sensing signal to the controller, a second positioning unit is fixed in the battery and is connected with the controller through a signal line. The multifunctional electric vehicle has the advantages of being complete in function, capable of reasonably alarming, monitoring and reminding, capable of meeting various requirements of users on the electric vehicle, capable of improving the high-grade feeling of the electric vehicle and capable of guaranteeing the vehicle using safety.
Description
Technical Field
The invention relates to an intelligent control technology of an electric bicycle.
Background
When the electric bicycle is used, a user generally worrys about battery safety, residual capacity, anti-theft safety and the like, corresponding monitoring safety equipment is also arranged at present, but the intelligent monitoring safety equipment is low, the problem of disturbing residents is caused, the safety problem is caused, or the corresponding monitoring function is not provided, and the related requirements of consumers are difficult to meet.
Disclosure of Invention
The invention aims to solve the technical problem of realizing an intelligent system which can ensure that a user can safely and safely use an electric vehicle.
In order to achieve the purpose, the invention adopts the technical scheme that: electric bicycle intelligent security control system, system are equipped with the vibrations inductor, vibrations inductor output sensing signal to controller, alarm signal to speaker are exported to the controller, the battery is connected to the power end of controller, installs first locating unit on electric bicycle's the frame, first locating unit passing signal line connection director, controller passing signal line connection communication unit and through communication unit and user cell-phone wireless communication, the cushion below of electric motor car is equipped with pressure sensor, pressure sensor output sensing signal to controller, the battery internal fixation has the second locating unit, second locating unit passing signal line connection director.
The electric bicycle's locomotive portion is equipped with two cameras that make a video recording to the rear side respectively, two camera output signal to controller, electric bicycle's locomotive portion is equipped with the microphone, microphone output signal to controller.
The controller and the second communication unit are integrated in a shell of the battery, the battery supplies power for the second positioning unit and the controller, the first positioning unit and the second positioning unit acquire positioning signals in real time and send the positioning signals to the controller, and the controller periodically transmits the two positioning signals to a mobile phone of a user according to a set program.
The controller is connected with the communication unit and is communicated with the mobile phone of the user through the communication unit, and the controller is characterized in that: the controller is connected with a vibration sensor used as a wake-up trigger signal, and is connected with a gyroscope used for sensing whether the electric vehicle falls down.
The head of the electric vehicle is provided with two cameras which respectively take pictures to the rear side, and the two cameras output signals to the controller.
The battery management device is characterized in that a battery management device for acquiring battery parameters is arranged in the battery and is connected with the controller through a signal line, the controller outputs a residual electric quantity signal to the instrument for display, a vibrator is arranged below a cushion of the electric vehicle, and the controller outputs a driving signal to the vibrator.
And the communication unit sends the battery residual capacity signal to the mobile phone of the user.
The controller is provided with a wake-up unit, and the wake-up unit is connected with a timer.
The multifunctional electric vehicle has the advantages of being complete in function, capable of reasonably alarming, monitoring and reminding, capable of meeting various requirements of users on the electric vehicle, capable of improving the high-grade feeling of the electric vehicle and capable of guaranteeing the vehicle using safety.
Drawings
The following is a brief description of the contents of each figure in the description of the present invention:
fig. 1 is a schematic diagram of an intelligent safety control system of an electric bicycle.
Detailed Description
The following description of the embodiments with reference to the drawings is provided to describe the embodiments of the present invention, and the embodiments of the present invention, such as the shapes and configurations of the components, the mutual positions and connection relationships of the components, the functions and working principles of the components, the manufacturing processes and the operation and use methods, etc., will be further described in detail to help those skilled in the art to more completely, accurately and deeply understand the inventive concept and technical solutions of the present invention.
The electric vehicle safety monitoring system is provided with two sets of monitoring systems to ensure the safety of an electric vehicle, the first monitoring device is provided with a vibration sensor, the vibration sensor outputs a sensing signal to the controller, the controller outputs an alarm signal to the loudspeaker, a power end of the controller is connected with the battery, the vibration sensor is used for sensing the vibration signal, the loudspeaker is used for emitting alarm sound, the controller judges whether the loudspeaker is used for alarming according to the specific signal, and the battery is a power battery of the electric vehicle and supplies power for the whole system.
In order to avoid false alarm, the other two sensors are arranged, namely a pressure sensor below a cushion of the electric vehicle and a wheel speed sensor on a wheel of the electric vehicle, the pressure sensor outputs a sensing signal to the controller, the wheel speed sensor outputs a wheel speed signal to the controller, the controller is connected with a timer for timing, under the condition that the alarm is not in contact with an alarm state, the timer starts to time after the controller receives a vibration signal sent by the vibration sensor, and in the set time, if any obtained parameter in the pressure sensor and the wheel speed sensor exceeds a set value, the controller drives a loudspeaker to alarm, so that the alarm mode is more targeted and the possibility of false alarm can be reduced.
The second monitoring device is equipped with two positioning units, positioning unit can adopt GPS or big dipper positioner, acquire position signal in real time, first positioning unit is installed on the frame, the second positioning unit is fixed in the battery box, first positioning unit and second positioning unit all pass through signal line connection director, and carry position signal to the controller, the controller passes through signal line connection communication unit and passes through communication unit and user cell-phone wireless communication, feed back position signal to user's cell-phone, let the user know the positional information of electric motor car.
In order to ensure the reliability of battery positioning, the controller and the second communication unit are integrated in the shell of the battery, the battery supplies power for the second positioning unit and the controller, and the normal positioning work of the second positioning unit can still be ensured after the battery is disassembled from the electric vehicle in a stolen state.
When the system works, the first positioning unit and the second positioning unit acquire positioning signals in real time and send the positioning signals to the controller, the controller periodically transmits the two positioning signals to a mobile phone of a user according to a set program, and the user can check the positioning signals through the mobile phone.
When the controller cannot receive the signal of the first positioning unit, the situation that the battery is detached from the electric vehicle is indicated, and the battery is possibly stolen, the controller immediately sends the position signal of the second positioning unit to the mobile phone of the user, and sends an alarm signal to the mobile phone of the user.
Still be equipped with one set of independent parking monitoring device in addition, this monitoring device passes through the controller and connects communication unit, and through communication unit and user mobile phone communication, the controller is connected with and is used for waking up the vibration sensor of trigger signal as, the electric motor car outage back, only maintain vibration sensor work, as awakening mechanism, other devices close, then can reduce the energy consumption, the controller is connected with the gyroscope that is used for responding to whether the electric motor car falls down, must have vibrations when the electric motor car falls down, at this moment vibration sensor awakens the controller up, the controller receives the gyroscope signal, if the gyroscope signal shows that the vehicle is the state of falling down, then signal transmission to user's cell-phone that falls down the electric motor car through communication unit.
In addition, in order to promote system theftproof monitoring performance, the locomotive portion of electric motor car is equipped with microphone and two cameras of making a video recording to the rear side respectively, and microphone and two camera output signal to controller can gather surrounding image information and sound information set time after the controller is awaken up to the vibrations sensor to storage or sending to user's cell-phone, can be stolen or when someone maliciously destroys in the electric motor car, as the evidence of maintaining self rights and interests.
The electric bicycle residual capacity reminding system is provided with an instrument, namely a conventional electric capacity display device, a battery manager for acquiring battery parameters is arranged in a battery, the battery manager monitors the health condition parameters of the battery in real time, the battery manager comprises residual capacity, the battery manager is connected with a controller through a signal line and transmits residual capacity signals to the controller in real time, and the controller is connected with the instrument and transmits the residual capacity signals to the instrument for display.
The electromagnetic vibration energy-saving electric bicycle is characterized in that a vibrator is arranged below a cushion of an electric bicycle, a controller outputs a driving signal to the vibrator, the vibrator vibrates once when the residual electric quantity does not drop a set value (such as 10%), the residual electric quantity is lower than a warning value (such as 20%), and the vibrator vibrates continuously for several seconds, so that users can know the electricity consumption in time in different vibration modes, the electric quantity can be known to drop to the warning value in time, and timely electricity supplement is avoided.
In addition, the controller is connected with a communication unit, the communication unit is communicated with the user mobile phone through wireless signals, and the battery residual capacity signal is sent to the user mobile phone. The user can know the residual capacity condition through the cell-phone is long-range, in order to can be autonomic to detect the electric quantity, avoid the feed, be equipped with the unit of awaking up in the controller, the unit of awaking up is connected with the time-recorder, when the outage time exceeded the settlement time (if 50 hours), then through the unit of awaking up the controller of awaking up, once test is carried out to the electric quantity of battery, if the electric quantity is less than the feed safety value, then send alarm signal to the cell-phone, if be higher than the feed safety value, then close the controller once more and time again.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (8)
1. Electric bicycle intelligent security control system, the system is equipped with the vibrations inductor, vibrations inductor output sensing signal to controller, alarm signal to speaker are exported to the controller, the battery is connected to the power end of controller, installs first positioning unit on electric bicycle's the frame, first positioning unit passes through signal line connection director, the controller passes through signal line connection communication unit and passes through communication unit and user cell-phone wireless communication, its characterized in that: a pressure sensor is arranged below a cushion of the electric vehicle and outputs a sensing signal to the controller, a second positioning unit is fixed in the battery and is connected with the controller through a signal line.
2. The intelligent electric bicycle safety control system of claim 1, wherein: the electric bicycle's locomotive portion is equipped with two cameras that make a video recording to the rear side respectively, two camera output signal to controller, electric bicycle's locomotive portion is equipped with the microphone, microphone output signal to controller.
3. The intelligent electric bicycle safety control system according to claim 1 or 2, wherein: the controller and the second communication unit are integrated in a shell of the battery, the battery supplies power for the second positioning unit and the controller, the first positioning unit and the second positioning unit acquire positioning signals in real time and send the positioning signals to the controller, and the controller periodically transmits the two positioning signals to a mobile phone of a user according to a set program.
4. The intelligent electric bicycle safety control system of claim 3, wherein: the controller is connected with the communication unit and is communicated with the mobile phone of the user through the communication unit, and the controller is characterized in that: the controller is connected with a vibration sensor used as a wake-up trigger signal, and is connected with a gyroscope used for sensing whether the electric vehicle falls down.
5. The intelligent electric bicycle safety control system of claim 4, wherein: the head of the electric vehicle is provided with two cameras which respectively take pictures to the rear side, and the two cameras output signals to the controller.
6. The intelligent electric bicycle safety control system according to claim 1 or 5, wherein: the battery management device is characterized in that a battery management device for acquiring battery parameters is arranged in the battery and is connected with the controller through a signal line, the controller outputs a residual electric quantity signal to the instrument for display, a vibrator is arranged below a cushion of the electric vehicle, and the controller outputs a driving signal to the vibrator.
7. The intelligent electric bicycle safety control system of claim 6, wherein: and the communication unit sends the battery residual capacity signal to the mobile phone of the user.
8. The intelligent electric bicycle safety control system of claim 7, wherein: the controller is provided with a wake-up unit, and the wake-up unit is connected with a timer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111440452.8A CN113928468A (en) | 2021-11-30 | 2021-11-30 | Intelligent safety control system of electric bicycle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111440452.8A CN113928468A (en) | 2021-11-30 | 2021-11-30 | Intelligent safety control system of electric bicycle |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113928468A true CN113928468A (en) | 2022-01-14 |
Family
ID=79288699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111440452.8A Withdrawn CN113928468A (en) | 2021-11-30 | 2021-11-30 | Intelligent safety control system of electric bicycle |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113928468A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6060982A (en) * | 1998-04-27 | 2000-05-09 | Holtrop; Perryn H. J. | Bicycle anti-theft alarm system |
CN206231485U (en) * | 2016-12-06 | 2017-06-09 | 海南科技职业学院 | A kind of lithium cell for electric bicycle with GPS location function |
CN207955857U (en) * | 2017-12-28 | 2018-10-12 | 池州市天伦车业有限公司 | A kind of anti-theft device of accumulator car |
CN109591926A (en) * | 2018-11-14 | 2019-04-09 | 徐州美世通电动车有限公司 | A kind of electric motor intelligent burglary-resisting system |
CN111806297A (en) * | 2020-06-19 | 2020-10-23 | 深圳拓邦股份有限公司 | Sleeping and awakening system and method of vehicle-mounted battery management system |
CN112549988A (en) * | 2020-12-11 | 2021-03-26 | 安徽天瑞电子科技有限公司 | Electric vehicle driving permission control system and control method thereof |
-
2021
- 2021-11-30 CN CN202111440452.8A patent/CN113928468A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6060982A (en) * | 1998-04-27 | 2000-05-09 | Holtrop; Perryn H. J. | Bicycle anti-theft alarm system |
CN206231485U (en) * | 2016-12-06 | 2017-06-09 | 海南科技职业学院 | A kind of lithium cell for electric bicycle with GPS location function |
CN207955857U (en) * | 2017-12-28 | 2018-10-12 | 池州市天伦车业有限公司 | A kind of anti-theft device of accumulator car |
CN109591926A (en) * | 2018-11-14 | 2019-04-09 | 徐州美世通电动车有限公司 | A kind of electric motor intelligent burglary-resisting system |
CN111806297A (en) * | 2020-06-19 | 2020-10-23 | 深圳拓邦股份有限公司 | Sleeping and awakening system and method of vehicle-mounted battery management system |
CN112549988A (en) * | 2020-12-11 | 2021-03-26 | 安徽天瑞电子科技有限公司 | Electric vehicle driving permission control system and control method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108881834B (en) | Commercial vehicle remote camera monitoring method | |
US11827078B2 (en) | Safety protection method based on new energy automobile vehicle-mounted air conditioner, and system thereof | |
WO2017020142A1 (en) | Multi-purpose vehicle smart monitoring system and method | |
CN203511849U (en) | Electromobile anti-theft alarming system | |
CN107613009A (en) | A kind of automotive safety monitoring system based on mobile Internet | |
CN206171365U (en) | Multi -functional ADAS equipment | |
CN101850757A (en) | Antitheft device for vehicle | |
CN201197181Y (en) | Vehicle monitoring system | |
CN111988741A (en) | Intelligent tracking and positioning anti-theft device based on communication technology and control method | |
CN209617097U (en) | A kind of oil tank of vehicle anti-theft alarm system | |
CN205365524U (en) | Vehicle intelligence anti -theft system based on unusual vibration monitoring | |
CN110492594A (en) | Method for managing power supply, device and the driving assistance system of driving assistance system | |
CN107933461A (en) | In-car identification fusing device and method based on single camera | |
CN207000404U (en) | A kind of automobile sound shadow anti-theft device | |
CN201057571Y (en) | Vehicle anti-theft warning device | |
CN113928468A (en) | Intelligent safety control system of electric bicycle | |
CN218316592U (en) | Low-power-consumption vehicle-mounted GPS automobile locator | |
CN205554394U (en) | Electric motor car intelligent system | |
CN110315915A (en) | Tire burglary-resisting system, method and machine readable storage medium | |
CN206879056U (en) | Intelligent fatigue detecting bluetooth earphone | |
CN203267996U (en) | Vehicle-mounted burglar alarm | |
CN205210322U (en) | Physical geography instrument anti -theft device based on acceleration sensor | |
CN209879677U (en) | Wireless general anti-theft device | |
CN103507750A (en) | Message remote control anti-theft device and method | |
CN207311547U (en) | A kind of child intelligence cart |
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 | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220114 |
|
WW01 | Invention patent application withdrawn after publication |