CN206574247U - A kind of detecting system of real-time judge parking stall seizure condition - Google Patents
A kind of detecting system of real-time judge parking stall seizure condition Download PDFInfo
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- CN206574247U CN206574247U CN201720275813.0U CN201720275813U CN206574247U CN 206574247 U CN206574247 U CN 206574247U CN 201720275813 U CN201720275813 U CN 201720275813U CN 206574247 U CN206574247 U CN 206574247U
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Abstract
The utility model discloses a kind of detecting system of real-time judge parking stall seizure condition, belong to parking stall measure field.The utility model includes geomagnetic sensor, piezoelectric cable, power module, circuit module and server, wherein geomagnetic sensor, piezoelectric cable, power module are connected with circuit module respectively, piezoelectric cable is also connected with power module, circuit module is connected with server, piezoelectric cable is set to piezoelectric cable, angle between the length direction of piezoelectric cable and vehicles while passing direction is θ, and θ ≠ 0.The utility model is not only overcome geomagnetic sensor and is disturbed the deficiency easily judged by accident using the combination of geomagnetic sensor and piezoelectric cable, can also be provided electric energy for power module using the piezo-electric effect of piezoelectric cable and be supplied, extend its use time.
Description
Technical field
The utility model is related to parking stall measure technical field, and shape is taken more specifically to a kind of real-time judge parking stall
The detecting system of state.
Background technology
The continuous improvement lived with people, car ownership is also constantly increasing sharply, and the thing followed is exactly parking problem,
Because vehicle is more and more, parking lot is built bigger and bigger, for the searching of free parking space, and a difficulty is just constituted for driver
Inscribe, therefore parking stall idle-detection system is arisen at the historic moment, the detection to parking position seizure condition is that (car joins parking guidance
Net) important foundation data.
The accurate detection of parking stall seizure condition is the basis of fixed parking lot or Roadside Parking intelligent management.Parking stall
State-detection will not only complete the accurate judgement of storing cycle state, but also avoid adjacent car interference and environmental disturbances etc. existing
As preventing from judging by accident and misjudging, improve the judgement recognition accuracy of vehicle in place.
With the development of measuring technology, various new method for detecting parking stalls are applied, at present some of open report
Technology or transmission-type is used, such as ultrasonic wave and infrared technique and radar electromagnetic wave technology；Or examined using magnetic field and coil
Survey technology, or two kinds of technologies combination.Such as number of patent application：2015204345665, June 24 2015 applying date, hair
It is bright entitled：The shutdown system recognized based on wireless parking detection with car owner, this application case uses geomagnetism detecting and radio frequency
The method that tag recognition is combined；And for example number of patent application：2013102040140, May 28 2013 applying date, invention name
Referred to as：A kind of method for detecting parking stalls and parking stall monitoring system, this application case use geomagnetism detecting, ultrasound detection and radio frequency mark
The combined method of label identification；For another example number of patent application：2016108682807,2016 applyings date September 29 days, denomination of invention
For：A kind of roadside stall testing apparatus and its detection method, this application case use geomagnetism detecting and are combined with detections of radar
Method.
Above technology exist subject matter be：Transmission sensors (such as ultrasound and radar) are influenceed by the stop of exotic
It is larger, and geomagnetic sensor is easily influenceed by external interference factor, the problem of there is erroneous judgement and misjudge more, RF tag is then pacified
Dress up high, and enforcement difficulty is big, and operability is poor.
Through retrieval, Chinese Patent Application No.：2016103168696, the applying date：It is on May 12nd, 2016, entitled：
The wireless vehicle position detecting system and its detection method of a kind of low-power consumption, the pressure that this application case is detected according to pressure detector are believed
Number entering for judgement vehicle does well and formed parking stall measure result；And for example Chinese Patent Application No.：2015206743084, application
Day：On September 1st, 2015, it is entitled：A kind of parking stall measure system, this application case discloses one kind and uses detection sensor
With the system for confirming sensor progress parking stall measure, wherein detection sensor uses vibrating sensor or pressure sensor, confirmed
Sensor uses geomagnetic sensor and/or ultrasonic sensor.Above application case can be to parking stall seizure condition detection, but
In the presence of obvious technological deficiency：(1) pressure transducer/pressure detector installation difficulty on parking stall, null offset is big；(2) when
When tested vehicle is parked on pressure sensor, sensor output will always be in maximum output state.Such case can increase
Plus power consumption, and reduce the service life of sensor.
In summary, although the technology at present for parking stall measure is rich and varied, in parking stall measure accuracy, stability
And very big optimization space is still suffered from terms of actual operation.
Utility model content
1. the utility model technical problem to be solved
The purpose of this utility model is to overcome in the prior art that parking stall measure accuracy is good, enforcement difficulty is larger not
Foot is there is provided a kind of detecting system of real-time judge parking stall seizure condition, and Detection accuracy is effectively improved, and detecting system structure
Simply, reliability is high, and installation operation is convenient, is had a wide range of applications in Roadside Parking and fixed parking lot intelligent management.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the utility model is provided is：
A kind of detecting system of real-time judge parking stall seizure condition of the present utility model, including geomagnetic sensor, piezoelectric electro
Cable, power module, circuit module and server, wherein geomagnetic sensor, piezoelectric cable, power module respectively with circuit module phase
Even, piezoelectric cable is also connected with power module, and circuit module is connected with server.
Further, described circuit module includes amplifier circuit unit, signal comparator circuit unit, processor unit
And radio communication unit.
Further, the piezoelectric cable is set to one or more piezoelectric cable, is laid in wheel on parking stall and passes through
Cross region.
Further, the angle between the length direction of piezoelectric cable and vehicles while passing direction is θ, and θ ≠ 0.
Further, the piezoelectric cable is set to a plurality of, the parallel distribution of a plurality of piezoelectric cable, is laid on parking stall
Wheel is by region.
Further, a plurality of piezoelectric cable length is identical.
Further, geomagnetic sensor, power module and circuit module are mounted in housing, and piezoelectric cable is installed on
The one or both sides of housing.
3. beneficial effect
The technical scheme provided using the utility model, compared with prior art, with following remarkable result：
(1) detecting system of a kind of real-time judge parking stall seizure condition of the present utility model, using geomagnetic sensors detection
The mode being combined, the problem of effectively solving the erroneous judgement of geomagnetic sensor caused by environmental disturbances, lifting are detected with piezoelectric cable
The accuracy and reliability of parking stall seizure condition detection.
(2) detecting system of a kind of real-time judge parking stall seizure condition of the present utility model, piezoelectric cable measurement machinery punching
The transient response change hit can significantly improve the signal to noise ratio of detection signal, ensure detection accuracy；Secondly, piezoelectric cable is for meeting with
The output response that vehicle is instantaneously rolled and persistently stopped is the signal of impulse form so that simpler to the fusion calculation of signal
Clean convenience, it is easy to implement, is easy to accurately and rapidly judge parking stall seizure condition.
(3) detecting system of a kind of real-time judge parking stall seizure condition of the present utility model, circuit module can be to piezoelectric electro
The front and rear mechanical shock generation time interval that cable is detected is compared calculating, if this time interval is less than certain limit,
Two Secondary Shocks can be judged as, with producing in a docking process, doing merging treatment when calculating and judging, entering one by circuit module
Step improves the accuracy that detection judges, it is to avoid judged by accident caused by the of short duration movement of vehicle, misjudgement problem.
(4) detecting system of a kind of real-time judge parking stall seizure condition of the present utility model, when vehicles while passing parking stall,
Vehicle tyre rolls time difference during different piezoelectric cables, analyzes the time relationship that the signal of different piezoelectric cables is produced, i.e.,
May determine that vehicle enters outgoing direction, further ensures the accurate detection to parking stall seizure condition.
(5) detecting system of a kind of real-time judge parking stall seizure condition of the present utility model, it is possible to use piezoelectric cable by
The piezo-electric effect produced when vehicle tyre is rolled charges to the power module of detecting system, increases the service life of power supply, saves
Energy resource consumption.
(6) detecting system of a kind of real-time judge parking stall seizure condition of the present utility model, it is possible to use piezoelectric cable is not
Mutually compensated for between cable, the background perturbation such as influence to detection such as temperature, vibration is reduced, so as to reach removal external interference
Effect, improve the accuracy and reliability of parking stall seizure condition detection.
(7) detecting system of a kind of real-time judge parking stall seizure condition of the present utility model, the piezoelectric cable used can be with
Being mounted on road surface reduces the destruction of road pavement, and detecting system is simple in construction, and cost is low, installs, operation is very easy.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the detecting system of real-time judge parking stall seizure condition of the present utility model；
Fig. 2 is the schematic diagram of piezoelectric cable laying form in the utility model；
Fig. 3 is the judgement schematic flow sheet of parking stall seizure condition in the utility model.
Label declaration in schematic diagram：1st, geomagnetic sensor；2nd, piezoelectric cable；3rd, power module；4th, circuit module；5th, take
Business device；6th, housing；7th, parking stall.
Embodiment
To further appreciate that content of the present utility model, the utility model is described in detail with reference to accompanying drawing.
With reference to embodiment, the utility model will be further described.
Embodiment 1
As depicted in figs. 1 and 2, a kind of detecting system of real-time judge parking stall seizure condition of the present embodiment, including earth magnetism
Sensor 1, piezoelectric cable 2, power module 3, circuit module 4 and server 5, wherein geomagnetic sensor 1, piezoelectric cable 2, power supply
Module 3 is connected with circuit module 4 respectively, and piezoelectric cable 2 is also connected with power module 3, and circuit module 4 is by wirelessly or non-wirelessly leading to
News mode is connected with server 5.Circuit module 4 includes amplifier circuit unit, signal comparator circuit unit, processing in the present embodiment
Device unit and radio communication unit.Geomagnetic sensor 1, power module 3 and circuit module 4 are mounted on housing 6 in the present embodiment
In, piezoelectric cable 2 is installed on the one or both sides of housing 6, and housing 6 can be arranged on center or the other positions on parking stall 7.
The present embodiment is used cooperatively by piezoelectric cable 2 and geomagnetic sensor 1, it is possible to achieve to parking stall seizure condition
Accurate detection.Mechanical shock that piezoelectric cable 2 can be born to it carries out effective detection, and mechanical shock is mechanical system or wherein
A part receive suddenly, drastically, acyclic excitation when and the state change process that occurs, characterize the basic of impact process
Physical quantity has speed, acceleration, displacement and shock duration etc..When mechanical system is by foreign object impact, piezoelectric electro
The response of cable 2 is mainly shown as a kind of transient changing, and its size is by the quality of impacted object (such as vehicle) and multiplying for movement velocity
Product is determined.When impacted object is static to be pressed on piezoelectric cable 2, although piezoelectric cable 2, which is pressurized, is output as zero.
In actual use, the cooperation of piezoelectric cable 2 can effectively improve the degree of accuracy of parking space state detection, due to car
The process on turnover parking stall 7 has certain speed, and the speed difference on the vehicles while passing parking stall 7 of different volumes,
Therefore the transient response change of measurement mechanical shock can significantly improve the signal to noise ratio of detection signal, ensure detection accuracy；Secondly,
Piezoelectric cable 2 is similar with the output response persistently stopped for instantaneously being rolled by vehicle, is the signal of impulse form so that right
The fusion calculation of signal more succinctly facilitates, it is easy to implement, and is easy to accurately and rapidly judge parking stall seizure condition.
Each parking stall 7 is provided with a geomagnetic sensor 1 and a piezoelectric cable 2 in the present embodiment.When vehicle enters
When going out parking stall 7 (being as shown by the arrows in Figure 2 vehicles while passing direction), geomagnetic sensor 1 measures the change in the magnetic field of parking stall 7,
The mechanical shock that the detection vehicle tyre of piezoelectric cable 2 is produced when passing through.Circuit module 4 receives geomagnetic sensor 1 and piezoelectricity respectively
The output signal of cable 2 simultaneously carries out fusion calculation processing, to obtain accurate parking stall seizure condition.
A kind of detection method of the real-time judge parking stall seizure condition of the present embodiment, using said detecting system, according to
Lower step is carried out：
Step 1: geomagnetic sensor 1 detects the changes of magnetic field of parking stall 7 and transmits signal, piezoelectric cable 2 to circuit module 4
Detect the mechanical shock produced when vehicle tyre passes through and transmit signal to circuit module 4；
Step 2: transmission signal in the receiving step one of circuit module 4 and calculating and judging parking stall seizure condition, and it will determine that
As a result server 5 is sent to；
Step 3: the signal of the receiving circuit module 4 of server 5 transmission and the seizure condition list of each parking stall is generated, and will
List information is distributed to each Terminal Type and shown.
Specifically, in step 2 parking stall seizure condition calculating deterministic process as shown in figure 3, wherein K be parking space state amount,
K=1 represents that parking stall takes, and K=-1 represents that parking stall is idle；S is the output state amount of geomagnetic sensor 1, and S=1 is expressed as earth magnetism
The output of sensor 1 is more than threshold value S0 set in advance, represents that geomagnetic sensor 1 measures parking stall occupancy；S=-1 is expressed as earth magnetism biography
The output of sensor 1 is less than S0, represents that geomagnetic sensor 1 measures parking stall idle；Y is the output voltage maximum of piezoelectric cable 2, Y0
For voltage threshold set in advance, n is pendulous frequency；Deterministic process is as follows：
A, the original state K (n) and S (n) for recording parking stall first, it is ensured that K (n) and S (n) state consistency；
B, circuit module 4 receive the output signal of piezoelectric cable 2, in real time the output voltage Y of monitoring piezoelectric cable 2；
C, when there is Y>During Y0, after delay a period of time, circuit module 4 receives the output signal of geomagnetic sensor 1, monitoring
The output of geomagnetic sensor 1, and obtain S (n+1)；
D, judge whether S (n+1) is consistent with S (n) states；
If e, S (n+1) and S (n) states are inconsistent, parking space state K (n+1)=- K (n) is judged；
If f, S (n+1) and S (n) state consistencies, alarm check geomagnetic sensor 1, the whether normal work of piezoelectric cable 2
Make, alarm module is additionally provided with circuit module 4.
What deserves to be explained is, circuit module 4 can compare Y (n+1) and Y (n) time intervals produced in the present embodiment
Relatively calculate, if this time interval is less than certain limit, two Secondary Shocks can be judged as with a docking process by circuit module 4
Middle generation, merging treatment is done when calculating and judging, the accuracy of detection judgement is further increased, it is to avoid be because of vehicle of short duration
It is mobile cause to judge by accident, misjudgement problem.
In the present embodiment the output signal of geomagnetic sensor 1 and piezoelectric cable 2 can also by circuit module 4 using wireless or
Wire communication mode is sent to the server 5 on backstage, and server 5 equally calculates the seizure condition list on each parking stall 7 of generation, entered
And it is distributed to all kinds of fixations or mobile terminal is shown and applied.Circuit module 4 and power module 3 in the present embodiment can be with
Using conventional known circuits, it will not be described in detail herein.
Embodiment 2
A kind of detecting system of the real-time judge parking stall seizure condition of the present embodiment, basic be the same as Example 1, further,
Piezoelectric cable 2 is set to a plurality of in the present embodiment, and a plurality of length of piezoelectric cable 2 is identical and parallel distribution, is laid on parking stall 7
Wheel is by region.As shown in Fig. 2 the angle between the length direction of piezoelectric cable 2 and vehicles while passing direction is θ, θ ≠ 0, pressure
The length of electrical cables 2 may be designed as the half not less than the width of parking stall 7.
The present embodiment is engaged using piezoelectric cable 2 with geomagnetic sensor 1, piezoelectric cable 2 along with the length direction of parking stall 7
The direction that (i.e. vehicles while passing direction, as shown by the arrows in Figure 2) angle is θ is laid, and a plurality of length is identical and pressure of parallel distribution
Electrical cables 2 can almost cover the whole width of parking stall 7, and support vehicles are bound to roll piezoelectric cable when passing in and out parking stall 7
2.Transient voltage signal is produced when piezoelectric cable 2 is rolled by vehicle tyre, can not only be engaged and accurately sentence with geomagnetic sensor 1
The seizure condition on disconnected parking stall 7, lifts the accuracy and reliability of detection, can also utilize the piezo-electric effect of piezoelectric cable 2, will
The voltage signal produced when it is rolled by vehicle tyre is used to charge to power module 3, increases the service life of power module 3,
Reduce the energy loss of detecting system.The piezo-electric effect of piezoelectric cable 2 makes it to produce the electricity of transient state when by mechanical shock
Pressure output, but response can't be produced when being acted on by continuous.
It should be noted that when vehicles while passing parking stall 7, time when vehicle tyre rolls different piezoelectric cables 2 is not
Together, the time relationship that the signal of different piezoelectric cables 2 is produced is analyzed, you can enter outgoing direction with judge vehicle, further ensure
Accurate detection to parking stall seizure condition；Secondly, be mounted adjacent to a plurality of isometric and parallel piezoelectric cable 2 of position, its by
To the influence of external interference factor (such as temperature, vibration) be identical, using the processing mode of differential wave, one can be used
The ambient noise of bar piezoelectric cable 2 goes to compensate the ambient noise of another piezoelectric cable 2, therefore can between a plurality of piezoelectric cable 2
To mutually compensate for, influence of the background perturbation to detection is reduced, so as to reach the purpose for removing external interference, erroneous judgement, misjudgement is reduced,
Improve detection accuracy and stability.
Schematically the utility model and embodiments thereof are described above, the description does not have restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by it, do not departing from the case that the utility model creates objective, designed without creative
The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (7)
1. a kind of detecting system of real-time judge parking stall seizure condition, it is characterised in that：Including geomagnetic sensor (1), piezoelectric electro
Cable (2), power module (3), circuit module (4) and server (5), wherein geomagnetic sensor (1), piezoelectric cable (2), power supply mould
Block (3) is connected with circuit module (4) respectively, and piezoelectric cable (2) is also connected with power module (3), circuit module (4) and server
(5) it is connected.
2. a kind of detecting system of real-time judge parking stall seizure condition according to claim 1, it is characterised in that：Described
Circuit module (4) includes amplifier circuit unit, signal comparator circuit unit, processor unit and radio communication unit.
3. a kind of detecting system of real-time judge parking stall seizure condition according to claim 2, it is characterised in that：The pressure
Electrical cables (2) are set to one or more, are laid on parking stall (7) wheel by region.
4. a kind of detecting system of real-time judge parking stall seizure condition according to claim 3, it is characterised in that：The pressure
Angle between the length direction of electrical cables (2) and vehicles while passing direction is θ, and θ ≠ 0.
5. a kind of detecting system of real-time judge parking stall seizure condition according to claim 3, it is characterised in that：The pressure
Electrical cables (2) are set to a plurality of, the parallel distribution of a plurality of piezoelectric cable (2), are laid on parking stall (7) wheel by region.
6. a kind of detecting system of real-time judge parking stall seizure condition according to claim 5, it is characterised in that：A plurality of pressure
Electrical cables (2) length is identical.
7. a kind of detecting system of real-time judge parking stall seizure condition according to any one of claim 1~6, its feature exists
In：Geomagnetic sensor (1), power module (3) and circuit module (4) are mounted in housing (6), and piezoelectric cable (2) is installed on
The one or both sides of housing (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720215382 | 2017-03-07 | ||
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683484A (en) * | 2017-03-07 | 2017-05-17 | 深圳市先波科技有限公司 | Detection system and detection method for judging parking space occupancy state in real time |
| CN110542496A (en) * | 2019-10-09 | 2019-12-06 | 苏州泊讯物联网技术有限公司 | rolling sensing device and signal processing method thereof |
| CN110827574A (en) * | 2019-11-13 | 2020-02-21 | 苏州泊讯物联网技术有限公司 | Parking space detection system and method and intelligent parking platform |
-
2017
- 2017-03-21 CN CN201720275813.0U patent/CN206574247U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683484A (en) * | 2017-03-07 | 2017-05-17 | 深圳市先波科技有限公司 | Detection system and detection method for judging parking space occupancy state in real time |
| CN106683484B (en) * | 2017-03-07 | 2022-07-29 | 深圳市先波科技有限公司 | Detection system and detection method for judging parking space occupation state in real time |
| CN110542496A (en) * | 2019-10-09 | 2019-12-06 | 苏州泊讯物联网技术有限公司 | rolling sensing device and signal processing method thereof |
| CN110827574A (en) * | 2019-11-13 | 2020-02-21 | 苏州泊讯物联网技术有限公司 | Parking space detection system and method and intelligent parking platform |
| WO2021093471A1 (en) * | 2019-11-13 | 2021-05-20 | 苏州泊讯物联网技术有限公司 | Parking space detection system and method, and smart parking platform |
| CN110827574B (en) * | 2019-11-13 | 2022-06-07 | 苏州泊讯物联网技术有限公司 | Parking space detection system and method and intelligent parking platform |
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