CN114024465A - A self-powered wireless monitoring and early warning speed bump based on active sensing technology - Google Patents
A self-powered wireless monitoring and early warning speed bump based on active sensing technology Download PDFInfo
- Publication number
- CN114024465A CN114024465A CN202111348677.0A CN202111348677A CN114024465A CN 114024465 A CN114024465 A CN 114024465A CN 202111348677 A CN202111348677 A CN 202111348677A CN 114024465 A CN114024465 A CN 114024465A
- Authority
- CN
- China
- Prior art keywords
- early warning
- module
- data
- vehicle
- unit
- 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
- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 238000012545 processing Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 5
- 238000010248 power generation Methods 0.000 claims description 10
- 238000004146 energy storage Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000005381 potential energy Methods 0.000 claims description 5
- 230000002596 correlated effect Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 206010039203 Road traffic accident Diseases 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/529—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users specially adapted for signalling by sound or vibrations, e.g. rumble strips; specially adapted for enforcing reduced speed, e.g. speed bumps
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
- G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a self-powered wireless monitoring and early warning deceleration strip based on an active sensing technology, wherein an upper unit and a lower unit are fixedly connected; the data acquisition module consists of a piezoelectric patch and a signal acquisition chip; the piezoelectric patch is embedded in the upper unit, and the signal acquisition chip is embedded in the lower unit and used for acquiring a voltage signal generated by the piezoelectric patch; the data transmission module is connected with the data acquisition module through a data line, the data transmission module is used for transmitting voltage signals acquired by the data acquisition module, the energy supply module adopts a friction nanometer generator, the friction nanometer generator is installed between the upper unit and the lower unit and supplies power for the data transmission module and the early warning lamp, the data processing and early warning module processes data sent by the data transmission module, the vehicle running state is judged, and the early warning lamp is controlled to flash regularly. The invention can be used for key road sections which need to slow down and walk and are easy to cause traffic accidents.
Description
Technical Field
The invention belongs to the field of intelligent traffic, and particularly relates to a self-powered wireless monitoring and early warning deceleration strip based on an active sensing technology.
Background
With the increasing number of motor vehicles, the issue of road traffic safety has become a focus of attention. The speed bump is used as an effective speed control device, and the speed of a running vehicle can be effectively reduced by laying the speed bump on an important road section, so that the road traffic safety is guaranteed. However, the conventional deceleration strip has the problems that the kinetic potential energy loss of the vehicle cannot be effectively utilized, the warning effect on vehicles running at night is poor, the driving speed cannot be recorded in real time, the overspeed vehicle cannot be monitored and early warned, and the like. With the more serious problems existing in the traditional deceleration strip, it is necessary to design a self-powered monitoring and early-warning deceleration strip meeting the requirements of the times.
The development of the piezoelectric effect, the wireless sensing technology and the friction nano power generation technology provides technical support for the invention. Due to the piezoelectric effect, a voltage signal is generated when a piezoelectric material is mechanically deformed by an external force. The piezoelectric principle has found application in the development of practical sensors around the world. The wireless sensing technology comprises data acquisition, wireless transmission, data processing and early warning technology, and the wireless transmission does not need wiring, so that the arrangement is more flexible, and the overall cost is greatly reduced. The narrowband internet of things as a new wireless transmission mode has great advantages in the aspects of transmission power consumption, transmission bandwidth, transmission power consumption, transmission distance and the like, and becomes a research hotspot in the field of wireless transmission. As an effective method for obtaining renewable clean energy from the environment, most of materials at present have triboelectric characteristics, which provides a very convenient condition for the preparation of triboelectric nano-generators, and thus the triboelectric nano-generator has received wide attention in the modern world.
In the invention, the problems of the traditional deceleration strip are considered, and a self-powered wireless monitoring and early warning deceleration strip based on an active sensing technology is provided, and can be used for key road sections requiring slow speed reduction of vehicles and easily causing traffic accidents.
Disclosure of Invention
The invention aims to provide a self-powered wireless monitoring and early warning deceleration strip based on an active sensing technology aiming at overcoming the defects of the prior art, and aims to solve the problems that the traditional deceleration strip is poor in warning effect on vehicles running at night and cannot monitor and early warn overspeed and overload vehicles.
The purpose of the invention is realized by the following technical scheme: a self-powered wireless monitoring and early warning deceleration strip based on an active sensing technology comprises an upper unit, a lower unit, a data acquisition module, a data transmission module, a power supply module, an early warning module and an early warning lamp; the upper unit and the lower unit are fixedly connected; the data acquisition module consists of a piezoelectric patch and a signal acquisition chip; the piezoelectric patch is embedded in the upper unit, and the signal acquisition chip is embedded in the lower unit and used for acquiring a voltage signal generated by the piezoelectric patch; the data transmission module is connected with the data acquisition module through a data line and is used for transmitting voltage signals acquired by the data acquisition module, the energy supply module adopts a friction nano generator which is of a multilayer stacked structure and ensures that the friction nano generator has larger power generation output; the energy supply module is arranged between the upper unit and the lower unit and supplies power to the data acquisition module, the data transmission module and the early warning lamp. The data processing and early warning module processes and analyzes real-time data sent by the data transmission module, and when the vehicle is judged to be in an overspeed state, the vehicle data is provided to law enforcement departments for subsequent processing.
Furthermore, the upper unit and the lower unit are made of rubber materials, and a hollow design is adopted between the upper unit and the lower unit.
Furthermore, a plurality of piezoelectric patches form the sensor unit, when a vehicle runs through the speed bump, the upper unit is subjected to bending deformation, and at the moment, the plurality of piezoelectric patches generate voltage signals due to the piezoelectric effect.
Furthermore, the data transmission module consists of a wireless transmission chip and an antenna; the wireless transmission chip wirelessly transmits the voltage signals acquired by the signal acquisition chip to the data processing and early warning module in real time through narrowband Internet of things wireless communication, and analysis and early warning are carried out. When the collected voltage signal exceeds the early warning threshold value, the vehicle can be judged to be in an overspeed state, and vehicle data can be provided to law enforcement departments for subsequent processing.
Further, the energy supply module comprises a friction nano generator and an electric energy storage unit; the friction nano generator is of a multilayer stacked structure, and a folding power generation structure can better collect electric energy. The upper surface and the lower surface are respectively embedded into the upper unit and the lower unit, the multilayer friction nano generator set is a generator set, when a vehicle passes through the speed bump, the upper unit deforms downwards, the upper surface of the friction nano generator is extruded to move downwards, the vehicle leaves the speed bump, the upper unit drives the upper surface of the friction nano generator to return to the original position, the internal stacked structure generates contact separation, charge transfer is generated to generate current, the kinetic potential energy of the running vehicle is converted into electric energy, and the electric energy is used for continuous and stable power generation; the electric energy storage unit is embedded in the lower unit, collects electric energy generated by the friction nano generator and supplies power to the data transmission module and the early warning lamp.
Further, the data processing and early warning module receives the acquisition signal transmitted by the data transmission module in real time; the size of the collected signal is positively correlated with the vehicle speed, when the collected signal exceeds a certain threshold value, the vehicle is judged to be in an overspeed state, and meanwhile, the data is stored in the data processing and early warning module for evidence obtaining and subsequent processing of relevant departments.
Furthermore, the early warning lamp is composed of a plurality of LED lamp tubes, and plays a warning role for running vehicles by regularly flashing at night.
The invention has the beneficial effects that: compared with the prior art, the self-powered wireless monitoring and early warning deceleration strip based on the active sensing technology can be used for key road sections requiring vehicle deceleration and slow running and easily causing traffic accidents. The invention is a 'generator set' composed of a plurality of friction nanometer generators, which is used for collecting the kinetic potential energy of a running vehicle and continuously and stably generating power, self-supplying energy during normal operation, needing no power supply devices such as batteries and the like, and adopting a narrow-band Internet of things wireless communication mode to wirelessly transmit the collected voltage signals to a data processing and early warning module in real time, and utilizing the data processing and early warning module to process and store the collected data in real time and transmit the collected data to law enforcement departments for visual analysis of monitoring results, and when the voltage signals are higher than a set voltage threshold value, the vehicle can be judged to be in an overspeed state.
Drawings
FIG. 1 is an appearance schematic diagram of a self-powered monitoring and early warning deceleration strip;
FIG. 2 is a schematic diagram of the internal structure of a self-powered monitoring and early warning deceleration strip;
FIG. 3 is a schematic diagram of the working principle of the self-powered monitoring and early warning deceleration strip;
FIG. 4 is a system wiring circuit diagram of a self-powered monitoring and early warning deceleration strip;
FIG. 5 is a schematic view of a working scene of a self-powered monitoring and early warning deceleration strip;
in the figure: 1. an upper unit; 2. a lower unit; 3. a data acquisition module; 301. piezoelectric patches; 302. collecting a chip; 4. a data transmission module; 401. a transmission chip; 402. an antenna; 5. an energy supply module; 501. a friction nanogenerator; 502. an electrical energy storage unit; 6. a data processing and early warning module; 7. an early warning light;
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, the invention provides a self-powered wireless monitoring and early warning deceleration strip based on an active sensing technology, which comprises an upper unit 1, a lower unit 2, a data acquisition module 3, a data transmission module 4, a power supply module 5, a data processing and early warning module 6 and an early warning lamp 7, wherein the upper unit 1 and the lower unit 2 are anchored by bolts, the data transmission module 4 is connected with the data acquisition module 3 by a data line, the data transmission module 4 is used for transmitting a voltage signal acquired by the data acquisition module 3 to the data processing and early warning module 6, the power supply module 5 supplies power to the data acquisition module 3, the data transmission module 4 and the early warning lamp 7 by electric wires, and the early warning lamp 7 flickers at regular time and plays a warning role at night. The data processing and early warning module 6 processes the data sent by the data transmission module 4, judges the running state of the vehicle, and provides the vehicle data for law enforcement departments for subsequent processing when judging that the vehicle is in an overspeed state.
The upper unit 1 and the lower unit 2 are made of rubber materials, the upper unit 1 and the lower unit 2 are in a hollow design, and the two parts are anchored through bolts, so that the overall cost of the speed bump is reduced, a power generation mechanism of contact separation of the friction nano-generator 501 is matched, and convenience is brought to arrangement of the device.
The data acquisition module 3 consists of a piezoelectric patch 301 and a signal acquisition chip 302; the piezoelectric patches 301 are embedded in the upper unit 1, the plurality of piezoelectric patches 301 form a sensor unit, when a vehicle runs through the speed bump, the upper unit 1 is bent and deformed, and at the moment, the plurality of piezoelectric patches 301 generate voltage signals due to piezoelectric effect; the signal acquisition chip 302 is embedded in the lower unit 2 and is used for acquiring a voltage signal generated by the piezoelectric patch 301.
The data transmission module 4 consists of a wireless transmission chip 401 and an antenna 402; the wireless transmission chip 401 wirelessly transmits the voltage signal acquired by the signal acquisition chip 302 to the data processing and early warning module 6 in real time through narrowband internet of things wireless communication for analysis and early warning. When the collected voltage signal exceeds the early warning threshold value, the vehicle can be judged to be in an overspeed state, and vehicle data can be provided to law enforcement departments for subsequent processing.
The energy supply module 5 comprises two parts, namely a friction nano generator 501 and an electric energy storage unit 502; the friction nano-generator 501 is of a multilayer stacked structure, and a folding power generation structure can better collect electric energy. The upper surface and the lower surface are respectively embedded into the upper unit 1 and the lower unit 2, the multilayer friction nanometer generator 501 forms a generator set, when a vehicle passes through the deceleration strip, the upper unit 1 deforms downwards, the upper surface of the friction nanometer generator 501 is extruded to move downwards, the vehicle leaves the deceleration strip, the upper unit 1 drives the upper surface of the friction nanometer generator 501 to return to the original position, the internal stacked structure generates contact separation, charge transfer is generated to generate current, the kinetic potential energy of the running vehicle is converted into electric energy, and the electric energy is used for continuous and stable power generation; the electric energy storage unit 502 is embedded in the lower unit 2, collects the electric energy generated by the friction nano-generator 501, and supplies power to the data transmission module 4 and the early warning lamp 7.
The data processing and early warning module 6 receives the acquisition signal transmitted by the data transmission module 4 in real time; the magnitude of the collected signal is positively correlated with the vehicle speed, when the collected signal exceeds a certain threshold value, the vehicle is judged to be in an overspeed state, and meanwhile, the data is stored in the data processing and early warning module 6 for evidence collection and subsequent processing of relevant departments.
The early warning lamp 7 is composed of a plurality of LED lamp tubes, and plays a role in warning running vehicles by regularly flashing at night.
The whole set of device is generated by the friction nano generator 501, so that self-energy supply is realized during normal operation, and power supply devices such as batteries are not needed.
Fig. 2, fig. 3, and fig. 5 specifically explain the operating principle of the self-powered wireless monitoring and early warning deceleration strip based on the active sensing technology, when a driving vehicle drives through the upper unit 1 of the intelligent deceleration strip, the upper unit 1 is bent and deformed, at this time, the piezoelectric patch 301 generates a voltage signal, the acquisition chip 302 is used for acquiring the voltage signal generated by the piezoelectric patch 301 due to the piezoelectric effect, the transmission chip 401 adopts a narrowband internet of things wireless communication mode, the acquired voltage signal is transmitted to the data processing and early warning module 6 in a wireless and real-time manner, and the data processing and early warning module 6 is used for processing, storing and visualizing the acquired data in a real-time manner. The magnitude of the collected signal is positively correlated with the vehicle speed and the like, and when the collected signal exceeds a certain threshold value, the vehicle can be judged to be in an overspeed state. Meanwhile, the upper surface and the lower surface of the friction nano generator 501 with the multilayer stacked structure are mutually extruded, power can be continuously and stably generated, and the electric energy storage unit 502 can collect electric energy generated by the friction nano generator 501 and supply power to the data transmission module 4 and the early warning module 7.
Fig. 4 is a system wiring circuit diagram of the self-powered monitoring and early warning deceleration strip, the friction nano generator 501 generates alternating current, the alternating current is converted into direct current through bridge rectification, a diode behind a rectifier bridge plays a role in voltage stabilization, an inductance element is used for filtering, and the capacitor and electric energy storage unit 502 is used for storing electric energy generated by the friction nano generator 501 and supplying power to the data transmission module 4 and the early warning lamp 7.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348677.0A CN114024465A (en) | 2021-11-15 | 2021-11-15 | A self-powered wireless monitoring and early warning speed bump based on active sensing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348677.0A CN114024465A (en) | 2021-11-15 | 2021-11-15 | A self-powered wireless monitoring and early warning speed bump based on active sensing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114024465A true CN114024465A (en) | 2022-02-08 |
Family
ID=80064446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111348677.0A Pending CN114024465A (en) | 2021-11-15 | 2021-11-15 | A self-powered wireless monitoring and early warning speed bump based on active sensing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114024465A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659603A (en) * | 2022-03-02 | 2022-06-24 | 同济大学 | A Pavement Dynamic Weighing System Based on Triboelectric Nanoelectricity Effect |
| CN115235985A (en) * | 2022-07-12 | 2022-10-25 | 同济大学 | Tire anti-skid sensing early warning method, device and storage medium based on triboelectricity |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024900A (en) * | 2010-10-29 | 2011-04-20 | 济南大学 | Piezoelectric sensor, beam type concrete sensor, and preparation methods and application thereof |
| CN102383381A (en) * | 2010-08-27 | 2012-03-21 | 昆山市玉山镇城北丰怡五金机电商行 | Road speed limiting device |
| CN110241750A (en) * | 2019-06-18 | 2019-09-17 | 京东方科技集团股份有限公司 | A kind of deceleration strip and road surface monitoring system |
| CN210621520U (en) * | 2019-09-16 | 2020-05-26 | 中国石油大学(华东) | Power generation deceleration strip with speed measuring function |
| CN111474379A (en) * | 2020-03-26 | 2020-07-31 | 南方科技大学 | Passive Vehicle Speed Sensor |
| CN111724604A (en) * | 2020-05-22 | 2020-09-29 | 北京科技大学 | A non-stop speed measurement and weighing system and method for expressway with license plate recognition |
| CN112865589A (en) * | 2021-01-30 | 2021-05-28 | 同济大学 | Road energy harvesting device based on lever principle and friction nanometer power generation |
-
2021
- 2021-11-15 CN CN202111348677.0A patent/CN114024465A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383381A (en) * | 2010-08-27 | 2012-03-21 | 昆山市玉山镇城北丰怡五金机电商行 | Road speed limiting device |
| CN102024900A (en) * | 2010-10-29 | 2011-04-20 | 济南大学 | Piezoelectric sensor, beam type concrete sensor, and preparation methods and application thereof |
| CN110241750A (en) * | 2019-06-18 | 2019-09-17 | 京东方科技集团股份有限公司 | A kind of deceleration strip and road surface monitoring system |
| CN210621520U (en) * | 2019-09-16 | 2020-05-26 | 中国石油大学(华东) | Power generation deceleration strip with speed measuring function |
| CN111474379A (en) * | 2020-03-26 | 2020-07-31 | 南方科技大学 | Passive Vehicle Speed Sensor |
| CN111724604A (en) * | 2020-05-22 | 2020-09-29 | 北京科技大学 | A non-stop speed measurement and weighing system and method for expressway with license plate recognition |
| CN112865589A (en) * | 2021-01-30 | 2021-05-28 | 同济大学 | Road energy harvesting device based on lever principle and friction nanometer power generation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659603A (en) * | 2022-03-02 | 2022-06-24 | 同济大学 | A Pavement Dynamic Weighing System Based on Triboelectric Nanoelectricity Effect |
| CN114659603B (en) * | 2022-03-02 | 2024-04-23 | 同济大学 | A road surface dynamic weighing system based on friction nano-electricity effect |
| CN115235985A (en) * | 2022-07-12 | 2022-10-25 | 同济大学 | Tire anti-skid sensing early warning method, device and storage medium based on triboelectricity |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114024465A (en) | A self-powered wireless monitoring and early warning speed bump based on active sensing technology | |
| CN104539192B (en) | A kind of piezoelectric type road vibration energy collecting system | |
| Wu et al. | A novel kinetic energy harvester using vibration rectification mechanism for self-powered applications in railway | |
| CN113375716B (en) | On-line monitoring system for self-powered transmission lines based on multi-sensor data fusion | |
| CN103134553B (en) | A kind of speed of a motor vehicle of piezoelectric self electricity and spacing intelligent monitor system and method | |
| CN203410251U (en) | Device for detecting pressure and speed of tire | |
| CN112865589A (en) | Road energy harvesting device based on lever principle and friction nanometer power generation | |
| CN106677095B (en) | A non-motor vehicle retrograde obstacle system | |
| CN103561511A (en) | Luminance-controllable roadway illumination control method and system | |
| CN205744322U (en) | Intelligence deceleration generating set | |
| CN111313742A (en) | Power management module for triboelectric nanogenerator and smart buoy system | |
| Chen et al. | An energy self-circulation system based on the wearable thermoelectric harvester for ART driver monitoring | |
| CN106930200A (en) | An intelligent deceleration belt with a power generation device and its control method | |
| CN106452180B (en) | A kind of piezoelectricity based on automotive suspension-Electromagnetic heating prisoner's energy device | |
| CN119573564A (en) | Failure monitoring system for transmission line anti-vibration device based on friction nanogenerator | |
| CN114838894B (en) | Bridge real-time monitoring and early warning device based on foldable friction nanotechnology | |
| CN111060194A (en) | Self-powered pump safety and health sensor based on intelligent material and implementation method | |
| CN101975148A (en) | Road surface power generation device by using micro difference | |
| CN113281053B (en) | Non-contact acoustic monitoring and LoRa transmission system and method based on stereo garage | |
| CN117351731A (en) | A self-powered overspeed wake-up alarm system based on friction nanogenerator | |
| CN110241750A (en) | A kind of deceleration strip and road surface monitoring system | |
| CN113920783A (en) | Self-powered curve meeting early warning system | |
| CN211347074U (en) | Self-powered pump safety and health sensor based on intelligent material | |
| CN212925832U (en) | Intelligence piezoelectricity electricity generation road surface deceleration strip | |
| CN105987701A (en) | Route optimization navigation system, working method, and vehicle using the navigation system |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220208 |