CN207115756U - Parking position monitoring device - Google Patents
Parking position monitoring device Download PDFInfo
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- CN207115756U CN207115756U CN201721089887.1U CN201721089887U CN207115756U CN 207115756 U CN207115756 U CN 207115756U CN 201721089887 U CN201721089887 U CN 201721089887U CN 207115756 U CN207115756 U CN 207115756U
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Abstract
Parking position monitoring device described in the utility model includes phase-locked loop circuit module, earth magnetism detecting module, timing module and processing module；The phase-locked loop circuit module and the earth magnetism detecting module are arranged on each parking stall underground；The phase-locked loop circuit module, earth magnetism detecting module connect with the processing module respectively；The timing module connects with the processing module.The device monitors wave frequency ranges in parking position by phase-locked loop circuit module real-time tracking to be changed, processing module differentiates whether vehicle is to be parked in parking position according to the output signal of phase-locked loop circuit module, to eliminate, by way of vehicle, magnetic detection module judges the interference of parking position state over the ground, timing module real-time display parking duration, so as to more accurately obtain the state of parking position, effective management to parking position is realized.
Description
Technical field
It the utility model is related to measurement monitoring field, more particularly to parking position monitoring device.
Background technology
At present, the monitoring device on parking stall is more by the way of ground magnetic detection.The mode of ground magnetic detection belongs to indirect measurement
Disturbance of the vehicle to earth's magnetic field, its advantage are low in energy consumption.But also can be to the earth's magnetic field on parking stall when vehicle passes by parking stall
Produce disturbance.Often had particularly out of doors in environment, in the range of parking position by way of motor vehicle or non-motor vehicle.And
The normally travel of motor vehicle or non-motor vehicle all easily causes erroneous judgement of the geomagnetic sensor to parking stall state.Therefore, because ground
The erroneous judgement of magnetic detection, it is difficult to accurately obtain the state of parking position.And then cause to be difficult to have parking position
Effect management.
The content of the invention
The defects of above-mentioned in the prior art be present to overcome, the utility model provides parking position monitoring device, leads to
Wave frequency ranges change in phase-locked loop circuit module real-time tracking monitoring parking position is crossed, processing module is according to phase-locked loop circuit mould
The output signal of block differentiates whether vehicle is to be parked in parking position, and to eliminate, by way of vehicle, magnetic detection module judges over the ground
The interference of parking position state, automatic triggering timing module calculates parking duration after confirming to stop, so as to more accurately
The state of parking position is obtained, realizes effective management to parking position.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
Parking position monitoring device, including：Phase-locked loop circuit module, earth magnetism detecting module, timing module and processing mould
Block；The phase-locked loop circuit module and the earth magnetism detecting module are arranged on each parking stall underground；The phase-locked loop circuit mould
Block, earth magnetism detecting module connect with the processing module respectively；The timing module connects with the processing module.
Further, the phase-locked loop circuit module and the earth magnetism detecting module are arranged on parking stall below ground 2-
5mm position.
Further, the processing module includes microprocessor and memory.
Further, in addition to the first wireless communication module and metered unit；The metered unit include according to
The second wireless communication module, the timing module and the accounting module of secondary connection；
The processing module passes through the first wireless communication module and the second wireless communication module of the metered unit
Connection.
Further, first wireless communication module and the second wireless communication module include WiFi, bluetooth BLE,
BWRouter、BPRouter。
Further, the earth magnetism detecting module is three axle geomagnetic sensors.
Further, the phase-locked loop circuit module includes phase comparator, loop filter and voltage controlled oscillator, described
Phase comparator, loop filter and voltage controlled oscillator form Closed loop track circuit.
Further, the timing module includes timing chip and LED display boards.
The beneficial effects of the utility model are：Electric wave in parking position is monitored by phase-locked loop circuit module real-time tracking
Frequency range changes, and processing module differentiates whether vehicle is to be parked in parking position according to the output signal of phase-locked loop circuit module
On, by way of vehicle, magnetic detection module judges the interference of parking position state over the ground eliminating, and is triggered automatically after confirming to stop
Timing module calculates parking duration, and so as to more accurately obtain the state of parking position, realize has to parking position
Effect management.
Brief description of the drawings
Fig. 1 is structure composition schematic diagram of the present utility model；
Fig. 2 is the structure composition schematic diagram of embodiment of the present utility model；
Fig. 3 is phase-locked loop circuit modular structure composition schematic diagram of the present utility model.
Label declaration：
100th, phase-locked loop circuit module；101st, phase comparator；102nd, loop filter；103rd, voltage controlled oscillator；
200th, earth magnetism detecting module；30th, metered unit；300th, timing module；
400th, processing module；500th, accounting module；600th, second communication module；700th, first communication module.
Embodiment
For detailed description technology contents of the present utility model, the objects and the effects, below in conjunction with embodiment and match somebody with somebody
Accompanying drawing is closed to be explained.
The design of the utility model most critical is：Curb parking is monitored by the real-time tracking of phase-locked loop circuit module 100
Wave frequency ranges change on position, improve differentiate vehicle whether be parked state accuracy rate, eliminate by way of vehicle magnetic detection mould over the ground
Block 200 judges the interference of parking position state, and automatic triggering timing module 300 calculates parking duration after confirming to stop, from
And the state of parking position is more accurately obtained, realize effective management to parking position.
Fig. 1 is refer to, the utility model provides parking position monitoring device, including：Phase-locked loop circuit module 100,
Magnetic detection module 200, timing module 300 and processing module 400；The phase-locked loop circuit module 100 and described ground magnetic detection mould
Block 200 is arranged on each parking stall underground；The phase-locked loop circuit module 100, earth magnetism detecting module 200 respectively with the processing
Module 400 connects；The timing module 300 and the processing module 400 connect.
Further, the phase-locked loop circuit module 100 and the earth magnetism detecting module 200 be arranged on parking stall ground with
Lower 2-5mm position.
Further, the processing module 400 includes microprocessor and memory.
Further, in addition to the first wireless communication module 700 and metered unit 30；The metered unit 30
Including the second wireless communication module 600, the timing module 300 and the accounting module 500 being sequentially connected；
The processing module 400 passes through the first wireless communication module 700 and the metered wireless connection of unit 30.
Understand, can carry out automatic charging to parking behavior by increasing accounting module, further simplify Car park payment
Flow.The convenient management to parking position.
Further, the wireless communication module 600 of the first wireless communication module 700 and second includes WiFi, bluetooth
BLE、BWRouter、BPRouter。
Knowable to, BWRouter is using the connected mode of wireless WiFi combinations bluetooth BLE communications, and BPRouter is to utilize to have
The connected mode of line broadband line of force BPLC combination bluetooths BLE communications.
Further, the earth magnetism detecting module 200 is three axle geomagnetic sensors.
Further, the phase-locked loop circuit module 100 includes phase comparator 101, loop filter 102 and voltage-controlled shaken
Device 103 is swung, the phase comparator 101, loop filter 102 and voltage controlled oscillator 103 form Closed loop track circuit.
Understand, phase-locked loop circuit module is a kind of typical feedback control circuit.Input is differentiated by phase comparator
Phase difference between signal and output signal, and output error voltage；Then loop filter by the noise in error voltage and
Interference component filters out, and forms the control voltage of voltage controlled oscillator.The result that control voltage acts on voltage controlled oscillator is it
Output frequency of oscillation pulls to frequency input signal, and when the two is equal, loop is locked.Reached with this to frequency input signal
Tracking lock.
Further, the timing module 300 includes timing chip and LED display boards.
Understand, the timing result of timing module is visually shown in real time by LED display boards, can allow and stop
Car person and manager more intuitively obtain parking information, the convenient management to parking stall.
Embodiment
Fig. 1 to Fig. 3 is referred to, the utility model provides parking position monitoring device, including phase-locked loop circuit module
100th, earth magnetism detecting module 200, metered unit 30, processing module 400.
The metered unit 30 and processing module 400 can be wired connection mode or radio connection；Have
Line connected mode is set nearby suitable for metered unit 30 with processing module 400, as the parking stall of roadside one is correspondingly arranged one
The situation of Parking Meter；Connecting line can not only be shortened, reduce input cost, and cabling laying is simpler, while information can also be improved
Efficiency of transmission；Certainly, even if the two is distantly located, in transmission stability demand, wired connection side can equally be used
Formula.Radio connection is applied to metered unit 30 and processing module 400 is distantly located, such as large parking lot long distance
From the situation for setting unified inlet and outlet；The complexity connected up at a distance and input cost can be reduced, while is more beneficial for safeguarding.
Specifically, being directed to radio connection, the detection means also includes the first wireless communication module 700；The meter
When unit 30 of charging include the second wireless communication module 600, timing module 300 and the accounting module 500 that are sequentially connected, handle mould
The wireless connection of the second wireless communication module 600 that block 400 passes through the first wireless communication module 700 and metered unit 30.
Wherein, phase-locked loop circuit module 100 and earth magnetism detecting module 200 are arranged on parking stall below ground, preferably
Lower 2-5mm position.Phase-locked loop circuit module 100 and earth magnetism detecting module 200 are respectively with processing module 400 with side wireless communication
Formula connects, and preferably passes through bluetooth connection.
Preferably, earth magnetism detecting module 200 uses three axle geomagnetic sensors, and three axle geomagnetic sensors can detect parking stall
On three axle earth's magnetic fields value, and measured three axles earth's magnetic field value is transferred to processing module 400, processing module 400, which passes through, to be surveyed
Three axle earth's magnetic field values with it is default have car earth's magnetic field threshold value and without car earth's magnetic field threshold value compared with, to judge current parking stall
State.Processing module 400 includes microprocessor and memory, for receiving phase-locked loop circuit module 100 and ground magnetic detection mould
The detection data that block 200 transmits, then judge parking stall real-time status according to detection data analysis.
Wherein, phase-locked loop circuit module 100 includes phase comparator 101, loop filter 102 and voltage controlled oscillator 103,
Phase comparator 101 is used to differentiate the phase difference on parking stall between electric wave and output signal, and output error voltage；Filter in loop
Ripple device 102 is used to filter out the noise in error voltage and interference component, forms the control voltage of voltage controlled oscillator 103；Control
The result that voltage acts on voltage controlled oscillator 103 is that its output frequency of oscillation is pulled to wave frequency on parking stall, when the two
When equal, loop is locked；Reach the tracking lock to wave frequency on parking stall with this.
The metered unit 30, for judging parking stall state in processing module 400 to take and vehicle is parks
When on parking stall, control instruction is received by the first wireless communication module 700, triggering timing module 300 starts timing；Stopping
Parking space state is changed into idle and when vehicle is not parked on parking stall, stops timing.Preferably, timing module 300 includes timing
Chip and LED display boards, it is arranged on the outside on parking stall.
The detection principle of the parking stall monitoring device of the present embodiment is：
CANBUS buses are the electronic systems that can be all used per chassis at present.When automobile is in running status,
CANBUS buses inevitably result from dominant frequency interference electric wave, its disturb electric wave have the short time, closely, the spy of high-energy
Property, meet the condition that near field sensing triggers.
First, preset judge automobile whether be parked on parking stall CANBUS dominant frequency interference electric wave exist duration when
Long threshold value.Default earth magnetism threshold value, earth magnetism threshold value include car threshold value and without car threshold values.
Then, phase-locked loop circuit module 100 is monitored in real time to electric wave on parking stall, and will monitor obtained parking stall
Upper wave frequency change real-time Transmission is to processing module 400, when wave frequency be 24MHz, and in the presence of grow and be more than duration threshold value,
Automobile is to be parked on parking stall in then being run on the differentiation of processing module 400 parking stall.
Meanwhile magnetic value is detected earth magnetism detecting module 200 in real time to three axles on parking stall, and by current parking stall
Three axles magnetic value be transferred to processing module 400；By gained, magnetic value is compared processing module 400 with earth magnetism threshold value when first three axle
Compared with if magnetic value is more than there is car threshold value when first three axle, it is to take to judge parking stall state；If magnetic value is small when first three axle
In without car threshold value, then judge that parking stall state is the free time.
Automobile is is parked on parking stall in processing module 400 differentiates and run on parking stall, and magnetic value when first three axle
During more than there is car threshold value, waking up timing module 300 and timing is carried out to vehicle parking behavior；When processing module 400 differentiates parking stall
Automobile is is parked on parking stall in upper operation, and when magnetic value is less than without car threshold value when first three axle, terminates timing module 300
Timing behavior.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalents made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in the technology neck of correlation
Domain, similarly it is included in scope of patent protection of the present utility model.
Claims (8)
1. parking position monitoring device, it is characterised in that including：Phase-locked loop circuit module, earth magnetism detecting module, timing module
And processing module；The phase-locked loop circuit module and the earth magnetism detecting module are arranged on each parking stall underground；The lock phase
Loop circuit module, earth magnetism detecting module connect with the processing module respectively；The timing module connects with the processing module.
2. parking position monitoring device according to claim 1, it is characterised in that：The phase-locked loop circuit module and institute
State the position that earth magnetism detecting module is arranged on parking stall below ground 2-5mm.
3. parking position monitoring device according to claim 1, it is characterised in that：The processing module includes microprocessor
Device and memory.
4. parking position monitoring device according to claim 1, it is characterised in that：Also include the first wireless communication module
With metered unit；The metered unit include be sequentially connected the second wireless communication module, the timing module and
Accounting module；
The processing module is connected by the first wireless communication module with the second wireless communication module of the metered unit.
5. parking position monitoring device according to claim 4, it is characterised in that：First wireless communication module and
Second wireless communication module includes WiFi, bluetooth BLE, BWRouter, BPRouter.
6. parking position monitoring device according to claim 1, it is characterised in that：The earth magnetism detecting module is three axles
Geomagnetic sensor.
7. parking position monitoring device according to claim 1, it is characterised in that：The phase-locked loop circuit module includes
Phase comparator, loop filter and voltage controlled oscillator, the phase comparator, loop filter and voltage controlled oscillator are formed and closed
Ring tracks circuit.
8. parking position monitoring device according to claim 1, it is characterised in that：The timing module includes timing core
Piece and LED display boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721089887.1U CN207115756U (en) | 2017-08-29 | 2017-08-29 | Parking position monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721089887.1U CN207115756U (en) | 2017-08-29 | 2017-08-29 | Parking position monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207115756U true CN207115756U (en) | 2018-03-16 |
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ID=61586324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721089887.1U Active CN207115756U (en) | 2017-08-29 | 2017-08-29 | Parking position monitoring device |
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| Country | Link |
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| CN (1) | CN207115756U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164139A (en) * | 2019-05-30 | 2019-08-23 | 浙江大学 | A kind of side parking detection identifying system and method |
| CN113379934A (en) * | 2020-05-13 | 2021-09-10 | 奇异平台股份有限公司 | Roadside parking management system |
-
2017
- 2017-08-29 CN CN201721089887.1U patent/CN207115756U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164139A (en) * | 2019-05-30 | 2019-08-23 | 浙江大学 | A kind of side parking detection identifying system and method |
| CN110164139B (en) * | 2019-05-30 | 2021-08-03 | 浙江大学 | System and method for detecting and identifying side parking |
| CN113379934A (en) * | 2020-05-13 | 2021-09-10 | 奇异平台股份有限公司 | Roadside parking management system |
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