CN110542496A - rolling sensing device and signal processing method thereof - Google Patents
rolling sensing device and signal processing method thereof Download PDFInfo
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- CN110542496A CN110542496A CN201910954856.5A CN201910954856A CN110542496A CN 110542496 A CN110542496 A CN 110542496A CN 201910954856 A CN201910954856 A CN 201910954856A CN 110542496 A CN110542496 A CN 110542496A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 24
- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims description 38
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000003566 sealing material Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000005056 compaction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
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- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
Abstract
the invention relates to the field of intelligent traffic, in particular to a rolling sensing device and a signal processing method thereof. According to the invention, the problem of low identification accuracy in the prior art is solved by connecting a plurality of rolling sensors in parallel, ground installation can be realized by arranging the protective shell on the outer layer of the sensing belt, the problem of difficulty in laying in the prior art is solved, and the rolling sensor is low in laying cost and convenient for large-area laying.
Description
Technical Field
the invention relates to the technical field of intelligent traffic, in particular to a rolling sensing device and a signal processing method thereof.
Background
along with the continuous enlargement of the urban area of each country, the continuous upgrading of traffic jam problem, the construction of wisdom traffic becomes the essential infrastructure project of alleviating traffic pressure, and wisdom traffic construction's basis and core facility are detection sensor, the more commonly used detection sensor in the existing market generally is piezoelectric film, piezoelectricity coaxial sensor etc. mainly used road vehicle flow detection, make a dash across the red light and detect, parking stall detection etc. although piezoelectric film and piezoelectricity coaxial cable can monitor very slight change, generally be used for meticulous detection, but the cost is very high, too high cost leads to unable large-scale laying these detection sensors, be unfavorable for promoting, to some cities that the fund is not enough, often can hinder the promotion of project because of the reason that the cost is high, thereby influence urban development.
Disclosure of Invention
Technical problem to be solved
aiming at the defects of the prior art, the invention provides a rolling sensing device and a signal processing method thereof, which have the advantages of low laying cost, high identification accuracy and the like, and solve the problems of high cost and difficulty in large-area popularization of sensors used in the existing intelligent traffic field.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a roll sensing device, includes the sensing area of constituteing by a plurality of parallel connection's sensor to and signal processing module and singlechip (MCU), the electricity is connected between sensing area, signal processing module and the singlechip (MCU), the sensing area will gather signal processing and send for signal processing module, and signal processing module will handle the signal and send for singlechip (MCU) after receiving this signal, the outside in sensing area is equipped with takes the cladding protection casing with the sensing.
preferably, the protective housing has a hollow portion for accommodating the sensor strip.
Furthermore, one end of the protection shell is provided with a cover plate, and the other end of the protection shell is provided with a sensing belt fixing groove.
furthermore, the apron is detachable construction, the both sides curb plate longitudinal extension of apron reaches fixed slot one end, with the sensing area block.
preferably, the plurality of sensors are spaced apart from each other and are connected in parallel to the signal processing module by two wires.
Preferably, the electronic components of the sensor are externally coated with a layer of sealing material.
Preferably, the sensor is a piezoelectric sensor.
preferably, the piezoelectric sensor is composed of a metal substrate and a piezoelectric ceramic.
A signal processing method of a rolling sensing device comprises the following steps:
s1, sending the rolling signal collected by the sensing belt to a signal processing module;
S2, the signal processing module changes module trigger voltage by setting the size of the resistor, and filters out smaller signals; the signal processing module filters redundant signals by setting the duration of the signals;
S3, the signal processing module converts the effective rolling signal into a digital signal which can be processed by a single chip Microcomputer (MCU);
and S4, the signal processing module sends the converted digital signal to a single chip Microcomputer (MCU).
(III) advantageous effects
Compared with the prior art, the invention provides a rolling sensing device and a signal processing method thereof, which have the following beneficial effects:
1. According to the invention, a plurality of rolling sensors are connected in parallel, so that the consistency of signals can be ensured no matter the vehicle rolls to one or more sensors, and the advantage of high accuracy is realized; the plurality of sensors are connected in parallel, so that mutual backup of the sensors can be realized, and if some sensors fail, the whole sensing belt can also work normally, so that the advantage of stronger stability of the rolling sensing device is realized, and the practicability of the rolling sensing device is improved.
2. The length of the sensor strip, the distance between the sensors and the position of the sensors can be adjusted according to specific applications, and the sensor strip has high flexibility.
3. The piezoelectric sensor with lower price can be adopted, so that the cost of the whole sensing belt is greatly reduced, the early-stage laying cost is effectively reduced, and the piezoelectric sensor is favorable for large-scale popularization.
4. the outer layer of the sensing belt is provided with the protective shell, and the sensing belt protective shell is only required to be fixed on the surface of a parking space by screws during installation, so that the sensing belt protective shell has the advantage of easy laying; the protective shell is made of wear-resistant materials, so that the wear of the protective shell is less than 2mm after 5 ten thousand times of vehicle rolling, and the protective shell has better wear resistance; the overall design of the invention can ensure that the automobile tire is not crushed by the automobile when rolling to generate a rolling signal, the compression resistance is 15 kg/square centimeter, and the automobile tire has stronger compression resistance; the protective shell is made of anti-corrosion and anti-saline-alkali corrosion materials, can resist corrosion of gasoline, diesel oil, vehicle lubricating oil, saline and alkali and the like, and ensures that the sensing belt can be used in a corrosive seaside environment.
5. The electronic element of the sensing tape is sealed by the coating material, so that the waterproof grade of IPx7 (one meter under water) can be achieved, and the sensing tape has stronger waterproof property.
6. The signal processing method can shield redundant signals, ensure the accuracy of transmission signals and further effectively improve the performance of equipment.
Drawings
FIG. 1 is a schematic diagram of the external structure of the sensor of the present invention;
FIG. 2 is a schematic diagram of the external structure of the sensor strip of the present invention;
FIG. 3 is a top view of a sensor strip of the present invention;
FIG. 4 is a schematic cross-sectional view of the present invention;
FIG. 5 is a schematic view of the protective housing of the present invention;
FIG. 6 is a schematic view of the internal structure of a sensor strip of the present invention;
FIG. 7 is a schematic diagram of a signal processing module of the present invention;
fig. 8 is a diagram illustrating an exemplary processing of a sensor band signal according to the present invention.
In the figure: 1. a metal substrate; 2. piezoelectric ceramics; 3. a sensor; 4. a welding point; 5. a wire; 6. a protective housing; 7. a sensor tape; 8. fixing grooves; 9. a hollow part; 10. a cover plate; 11. a sealing material; 12. a bus conductor; 13. and a signal processing module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a rolling sensor device comprises a sensor strip 7 composed of a plurality of sensors 3 connected in parallel, a signal processing module and a single chip Microcomputer (MCU), wherein the sensor strip 7, the signal processing module and the single chip Microcomputer (MCU) are electrically connected, the sensor strip 7 processes collected signals and transmits the processed signals to the signal processing module, the signal processing module receives the signals and transmits the processed signals to the single chip Microcomputer (MCU), and a protective shell 6 covering the sensor strip is arranged outside the sensor strip.
In this embodiment, the protection housing 6 has a hollow portion 9 for accommodating the sensor strip, a fixing groove 8 for fixing the sensor strip is formed at the bottom of the hollow portion 9, a detachable cover plate 10 is disposed at the top of the hollow portion 9, and two side plates of the cover plate 10 extend downward to above the fixing groove 8 to be engaged with the sensor strip 7. When the device is installed, the sensing belt protection shell 6 is fixed on the surface of a parking space by screws, and the cover plate is detached when the sensor is maintained or replaced, so that the device has the advantages of easy laying, easy installation and convenient maintenance.
the sensor adopts a piezoelectric sensor, a plurality of sensors 3 are spaced, each sensor 3 is provided with a welding point 4, the sensors are welded through two wires 5 and are connected to a signal processing module 13 through a bus wire 12, the piezoelectric sensor 3 consists of a metal substrate 1 and piezoelectric ceramics 2, and an electronic element of the sensor 3 is coated with a layer of sealing material 11.
the invention discloses a signal processing method of a rolling sensing device, which comprises the following steps:
S1, sending the rolling signal collected by the sensing belt to a signal processing module;
s2, the signal processing module changes module trigger voltage by setting the size of the resistor, and filters out smaller signals; the signal processing module filters redundant signals by setting the duration of the signals;
S3, the signal processing module converts the effective rolling signal into a digital signal which can be processed by a single chip Microcomputer (MCU);
And S4, the signal processing module sends the converted digital signal to a single chip Microcomputer (MCU).
As shown in fig. 7, the signal processing module of the present invention operates as follows:
the signal processing module is realized by a comparator chip, an input signal acquired by a sensing strip is input to the input end of the comparator, and the reference voltage of the comparator is obtained by connecting two resistors with a power supply voltage VCC and a ground wire GND. By adjusting the resistance values of the resistors R1 and R2, the module can implement a change in the reference voltage. Referring to fig. 8, a signal amplitude variation of the input of the sensor strip terminal and an output value of the signal processing module are shown.
According to the signal processing method, small signals generated by treading of people can be effectively filtered, a plurality of signals in a short time (for example, less than 1ms) are filtered, redundant signals are filtered, and therefore the accuracy of signal transmission is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A roll compaction sensing device which characterized in that: including the sensing area of constituteing by a plurality of parallel connection's sensor to and signal processing module and singlechip (MCU), the electricity is connected between sensing area, signal processing module and the singlechip (MCU), the sensing area will gather signal processing and send for signal processing module, and signal processing module will handle the signal and send for singlechip (MCU) after receiving this signal, the outside in sensing area is equipped with takes the cladding protection casing with the sensing.
2. A crush sensor apparatus according to claim 1, wherein: the protective housing has a hollow portion for receiving the sensor strip.
3. A crush sensor apparatus according to claim 2, wherein: one end of the protection shell is provided with a cover plate, and the other end of the protection shell is provided with a sensing belt fixing groove.
4. a crush sensor apparatus according to claim 3, wherein: the apron is detachable construction, the both sides curb plate longitudinal extension of apron reaches fixed slot one end, with the sensing area block.
5. A crush sensor apparatus according to claim 1, wherein: the sensors are spaced from each other and are connected in parallel to the signal processing module by two wires.
6. A crush sensor apparatus according to claim 1, 2, 3, 4 or 5, wherein: the electronic components of the sensor are externally coated with a layer of sealing material.
7. A crush sensor apparatus according to claim 6, wherein: the sensor is a piezoelectric sensor.
8. A crush sensor apparatus according to claim 7, wherein: the piezoelectric sensor is composed of a metal substrate and piezoelectric ceramics.
9. a signal processing method of a rolling sensing device is characterized by comprising the following steps: the method comprises the following steps:
S1, sending the rolling signal collected by the sensing belt to a signal processing module;
S2, the signal processing module changes module trigger voltage by setting the size of the resistor, and filters out smaller signals; the signal processing module filters redundant signals by setting the duration of the signals;
S3, the signal processing module converts the effective rolling signal into a digital signal which can be processed by a single chip Microcomputer (MCU);
And S4, the signal processing module sends the converted digital signal to a single chip Microcomputer (MCU).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910954856.5A CN110542496A (en) | 2019-10-09 | 2019-10-09 | rolling sensing device and signal processing method thereof |
| PCT/CN2020/117604 WO2021068759A1 (en) | 2019-10-09 | 2020-09-25 | Rolling sensor device and signal processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910954856.5A CN110542496A (en) | 2019-10-09 | 2019-10-09 | rolling sensing device and signal processing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110542496A true CN110542496A (en) | 2019-12-06 |
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| CN201910954856.5A Pending CN110542496A (en) | 2019-10-09 | 2019-10-09 | rolling sensing device and signal processing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021068759A1 (en) * | 2019-10-09 | 2021-04-15 | 苏州泊讯物联网技术有限公司 | Rolling sensor device and signal processing method thereof |
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| CN101593423A (en) * | 2009-06-30 | 2009-12-02 | 华南理工大学 | The signal pickup assembly of dynamic weighing and model recognition system and signal acquisition method |
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| KR20140090342A (en) * | 2013-01-07 | 2014-07-17 | 조성훈 | Traffic Information Detection System and Method of the same |
| TWI566743B (en) * | 2015-03-20 | 2017-01-21 | Huijia Health Life Technology Co Ltd | Fiber type continuous detection of blood pressure sensor and wear device |
| CN206574247U (en) * | 2017-03-07 | 2017-10-20 | 深圳市先波科技有限公司 | A kind of detecting system of real-time judge parking stall seizure condition |
| CN109859498A (en) * | 2019-03-08 | 2019-06-07 | 黄河水利职业技术学院 | A kind of traffic flow monitoring device |
| CN210268970U (en) * | 2019-10-09 | 2020-04-07 | 苏州泊讯物联网技术有限公司 | Rolling sensing device |
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2019
- 2019-10-09 CN CN201910954856.5A patent/CN110542496A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101593423A (en) * | 2009-06-30 | 2009-12-02 | 华南理工大学 | The signal pickup assembly of dynamic weighing and model recognition system and signal acquisition method |
| CN102542809A (en) * | 2010-12-22 | 2012-07-04 | 无锡物联网产业研究院 | Method and system for detecting traffic information, and magnetic sensitive sensor nodes |
| KR20140090342A (en) * | 2013-01-07 | 2014-07-17 | 조성훈 | Traffic Information Detection System and Method of the same |
| TWI566743B (en) * | 2015-03-20 | 2017-01-21 | Huijia Health Life Technology Co Ltd | Fiber type continuous detection of blood pressure sensor and wear device |
| CN206574247U (en) * | 2017-03-07 | 2017-10-20 | 深圳市先波科技有限公司 | A kind of detecting system of real-time judge parking stall seizure condition |
| CN109859498A (en) * | 2019-03-08 | 2019-06-07 | 黄河水利职业技术学院 | A kind of traffic flow monitoring device |
| CN210268970U (en) * | 2019-10-09 | 2020-04-07 | 苏州泊讯物联网技术有限公司 | Rolling sensing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021068759A1 (en) * | 2019-10-09 | 2021-04-15 | 苏州泊讯物联网技术有限公司 | Rolling sensor device and signal processing method thereof |
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