CN207115773U - A kind of parking stall monitoring device - Google Patents
A kind of parking stall monitoring device Download PDFInfo
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- CN207115773U CN207115773U CN201721090003.4U CN201721090003U CN207115773U CN 207115773 U CN207115773 U CN 207115773U CN 201721090003 U CN201721090003 U CN 201721090003U CN 207115773 U CN207115773 U CN 207115773U
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- parking stall
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Abstract
The utility model discloses a kind of parking stall monitoring device, it is related to measurement detection field.A kind of parking stall monitoring device described in the utility model includes phase-locked loop circuit module, earth magnetism detecting module, IP Camera, processing module and monitoring server；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 IP Camera, the processing module communicate to connect with the monitoring server respectively.The device is monitored in real time by phase-locked loop circuit module to wave frequency ranges change on parking stall, processing module differentiates whether vehicle is to be parked on parking stall in operation on parking stall according to the output signal of phase-locked loop circuit module, eliminate by way of interference of the vehicle to parking stall condition discrimination, so as to more be accurately controlled the startup of IP Camera.
Description
Technical field
It the utility model is related to measurement monitoring field, more particularly to a kind of parking stall monitoring device.
Background technology
At present, the monitoring device on parking stall more using ground magnetic detection by the way of or ground magnetic detection combination camera side
Formula.The mode of ground magnetic detection belongs to disturbance of the measurement vehicle to earth's magnetic field indirectly, and its advantage is low in energy consumption.But when vehicle road
When crossing parking stall can also disturbance be produced to the earth's magnetic field on parking stall.Particularly out of doors in environment, motor vehicle and non-motor vehicle
Normally travel all easily causes erroneous judgement of the geomagnetic sensor to parking stall state.Therefore, because the erroneous judgement of ground magnetic detection, causes ground
The frequent starting of camera in the mode of magnetic detection combination camera, causes that camera power consumption is higher, and the life-span is shorter.
The content of the invention
The defects of above-mentioned in the prior art be present to overcome, the utility model provides a kind of parking stall monitoring device, leads to
Wave frequency ranges change on phase-locked loop circuit module real-time tracking monitoring parking stall is crossed, processing module is according to phase-locked loop circuit module
Output signal differentiates whether vehicle is parked on parking stall, to eliminate by way of interference of the vehicle to parking stall condition adjudgement, so as to
More it is accurately controlled the startup of IP Camera.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of parking stall monitoring device, including：Phase-locked loop circuit module, earth magnetism detecting module, IP Camera, processing mould
Block and monitoring server；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 IP Camera,
The processing module communicates to connect with the monitoring server respectively.
Further, the phase-locked loop circuit module and the earth magnetism detecting module are arranged on parking stall below ground 2-
5mm position；The IP Camera is arranged between two parking stalls.
Further, the processing module includes microprocessor and memory.
Further, the communication connection includes WiFi, bluetooth BLE, BWRouter, BPRouter, wired connection mode.
Further, the earth magnetism detecting module is three axle geomagnetic sensors.
Further, the IP Camera is wide-angle camera, fish-eye camera or 360 degree of full-shape cameras.
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.
The beneficial effects of the utility model are：By phase-locked loop circuit module on parking stall wave frequency ranges carry out in real time with
Track is detected, and processing module differentiates whether vehicle is to be parked on parking stall according to the output signal of phase-locked loop circuit module, eliminates
By way of interference of the vehicle to parking stall condition adjudgement, so as to more be accurately controlled the startup of IP Camera, network is reduced
The power consumption of camera, extend its life-span.
Brief description of the drawings
Fig. 1 is structure composition schematic diagram of the present utility model；
Fig. 2 is phase-locked loop circuit module of the present utility model, earth magnetism detecting module, processing module and IP Camera installation
Schematic diagram；
Fig. 3 is phase-locked loop circuit modular structure composition schematic diagram of the present utility model；
Label declaration：
1st, phase-locked loop circuit module, earth magnetism detecting module and processing module；
100th, phase-locked loop circuit module；101st, phase comparator；102nd, loop filter；103rd, voltage controlled oscillator；
200th, earth magnetism detecting module；300th, processing module；400th, IP Camera；500th, monitoring server.
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：Monitored by the real-time tracking of phase-locked loop circuit module 100 on parking stall
Wave frequency ranges change, and processing module 300 is according to vehicle in operation on the output signal of phase-locked loop circuit module 100 differentiation parking stall
Whether it is parking vehicle, to eliminate by way of interference of the vehicle to parking stall condition adjudgement, is taken the photograph so as to more be accurately controlled network
As first 400 startup.
Fig. 1 is refer to, the utility model provides a kind of parking stall monitoring device, including：Phase-locked loop circuit module 100,
Magnetic detection module 200, IP Camera 400, processing module 300 and monitoring server 500；The phase-locked loop circuit module 100
Each parking stall underground is arranged on the earth magnetism detecting module 200；
The phase-locked loop circuit module 100, earth magnetism detecting module 200 connect with the processing module 300 respectively；The net
Network camera 400, the processing module 300 communicate to connect with the monitoring server 500 respectively.
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；The IP Camera 400 is arranged between two parking stalls.
Understand, IP Camera 400 is arranged between two parking stalls, it is possible to achieve an IP Camera 400 is simultaneously
Monitor vehicle on former and later two parking stalls.The car plate to be stopped on former and later two parking stalls is taken pictures.
Further, the processing module 300 includes microprocessor and memory.
Further, the communication connection includes WiFi, bluetooth BLE, BWRouter, BPRouter, wired connection mode.
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 IP Camera 400 is wide-angle camera, fish-eye camera or 360 degree of full-shape cameras.
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 100 is a kind of typical feedback control circuit.Reflected by phase comparator 101
Other phase difference between input signal and output signal, and output error voltage；Then loop filter 102 is by error voltage
Noise and interference component filter out, formed voltage controlled oscillator 103 control voltage.Control voltage acts on voltage controlled oscillator 103
Result be that its output frequency of oscillation is pulled to frequency input signal, when the two is equal, loop is locked.Reached pair with this
The tracking lock of frequency input signal.
Embodiment
Fig. 1 and Fig. 2 are referred to, the utility model provides a kind of parking stall monitoring device, including phase-locked loop circuit module
100th, earth magnetism detecting module 200, processing module 300, IP Camera 400 and monitoring server 500.Phase-locked loop circuit module
100 and earth magnetism detecting module 200 be arranged on parking stall below ground, preferably underground 2-5mm position, IP Camera 400
Between two parking stalls.Phase-locked loop circuit module 100 and earth magnetism detecting module 200 pass through indigo plant with processing module 300 respectively
Tooth connects, the three axle geomagnetic sensors of use of earth magnetism detecting module 200, three axle earth magnetism on three axle geomagnetic sensors detection parking stalls
Field value, and measured three axles earth's magnetic field value is transferred to processing module, processing module is by measured three axles earth's magnetic field value with stopping
Default three axle earth's magnetic field values when parking stall is idle are compared, to judge the state of current parking stall.
Wherein, 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.
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.Processing module 300 includes microprocessor
Device and memory.IP Camera 400 and processing module 300 respectively with monitoring server by WiFi, bluetooth BLE,
The modes such as BWRouter, BPRouter, wired connection connect.IP Camera 400 using wide-angle camera, fish-eye camera or
360 degree of full-shape cameras
The detection principle of the parking stall monitoring device of the present embodiment is：
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 300, 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 300 parking stall, and the automobile parking information is real-time
It is transferred to monitoring server 500.
Meanwhile magnetic value detects earth magnetism detecting module 200 to three axles on parking stall, and by three axle on current parking stall
Ground magnetic value is transferred to processing module 300；Magnetic value is compared with earth magnetism threshold value when first three axle by gained for processing module 300, such as
For magnetic value more than there is car threshold value, then it is to take to judge parking stall state to fruit when first three axle；If magnetic value is less than nothing when first three axle
Car threshold value, then judge that parking stall state is the free time.And by parking stall status information real-time Transmission to monitoring server 500.
Monitoring server 500 confirms to park information, and parking stall shape to the real-time monitoring of parking space information when receiving automobile
State for take when, wake up IP Camera 400 vehicle on parking stall is taken pictures, and will take photo be transferred to monitoring clothes
Business device 500.
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 (7)
- A kind of 1. parking stall monitoring device, it is characterised in that including：Phase-locked loop circuit module, earth magnetism detecting module, network shooting Head, processing module and monitoring server；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 IP Camera, institute Processing module is stated to communicate to connect with the monitoring server respectively.
- A kind of 2. parking stall 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；The IP Camera be arranged on two parking stalls it Between.
- A kind of 3. parking stall monitoring device according to claim 1, it is characterised in that：The processing module includes microprocessor Device and memory.
- A kind of 4. parking stall monitoring device according to claim 1, it is characterised in that：It is described communication connection include WiFi, Bluetooth BLE, BWRouter, BPRouter, wired connection mode.
- A kind of 5. parking stall monitoring device according to claim 1, it is characterised in that：The earth magnetism detecting module is three axles Geomagnetic sensor.
- A kind of 6. parking stall monitoring device according to claim 1, it is characterised in that：The IP Camera is taken the photograph for wide-angle As head, fish-eye camera or 360 degree of full-shape cameras.
- A kind of 7. parking stall 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090003.4U CN207115773U (en) | 2017-08-29 | 2017-08-29 | A kind of parking stall monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090003.4U CN207115773U (en) | 2017-08-29 | 2017-08-29 | A kind of parking stall monitoring device |
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| Publication Number | Publication Date |
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| CN207115773U true CN207115773U (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721090003.4U Active CN207115773U (en) | 2017-08-29 | 2017-08-29 | A kind of parking stall monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269312A (en) * | 2018-03-21 | 2018-07-10 | 厦门华方软件科技有限公司 | A kind of illegal parking monitoring system and method |
-
2017
- 2017-08-29 CN CN201721090003.4U patent/CN207115773U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269312A (en) * | 2018-03-21 | 2018-07-10 | 厦门华方软件科技有限公司 | A kind of illegal parking monitoring system and method |
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