CN205050343U

CN205050343U - Intelligence is parked and is monitored management system and vehicle detector

Info

Publication number: CN205050343U
Application number: CN201520523506.0U
Authority: CN
Inventors: 袁丽
Original assignee: Individual
Current assignee: Zhang Chao
Priority date: 2015-07-17
Filing date: 2015-07-17
Publication date: 2016-02-24
Anticipated expiration: 2025-07-17

Abstract

The utility model provides an intelligence is parked and is monitored management system, the system includes: vehicle detector, radio communication unit, the control administrative center that parks, wherein, vehicle detector includes: PIR and GMI detection module, vehicle detector, it is right to be used for the vehicle on the parking stall that PIR detected have the no signal with the vehicle information that the vehicle disturbance geomagnetic field magnetism abnormal signal on the parking stall that GMI detection module detected carries out generating after the integrated treatment parking stall erupts simultaneously and delivers to the radio communication unit, park and monitor the administrative center, be used for receiving the vehicle information on parking stall is handled to monitor management and accounting management according to the result to parking stall information. The utility model is suitable for a vehicle test technical field.

Description

Intelligent parking monitoring management system and wagon detector

Technical field

The utility model relates to technical field of vehicle detection, refers to a kind of intelligent parking monitoring management system and wagon detector especially.

Background technology

In recent years, along with vehicle increases, the parking spot in urban district becomes growing tension, especially the roadside parking position of related frequency is used, and along with citizen arbitrarily stop occupy-place, stop after not according to parking duration paying, or occur that because keeper cannot supervise escaping payment phenomenon happens occasionally, and causes annual local revenue effectively to be ensured repeatedly.

For this reason, various places vehicle supervision department needs to dispose a large amount of supervisor and carries out supervising and charging, even now to a certain degree can be reduced or remitted above-mentioned phenomenon and occur, but be limited to roadside parking position and compare dispersion, and manpower supervision limited strength, comprehensive, round-the-clock monitoring cannot be carried out to urban district Parking situation, therefore, still effectively cannot solve the phenomenon that payment escaped by curb parking.

For this reason, occur a kind of intelligent parking charging administration system, fee-collector, by duty for hand-held intelligent mobile phone, by being arranged on the middle wagon detector in parking stall and computer terminal, realizes the intellectuality of timing, charge.

For wagon detector, detected in prior art by various sensor to vehicle parking information, common detection mode is as follows:

(1) loop vehicle detector (feel with being also called, mostly be embedded type detection system)

Loop vehicle detector is traditional traffic detector, is a kind of checkout equipment that consumption is maximum in the world at present.When vehicle is by being embedded in the toroid winding under road surface, the change in toroid winding magnetic field can be caused, loop vehicle detector calculates flow, speed, the traffic parameter such as time occupancy and length of vehicle accordingly, and be uploaded to central control system, to meet the needs of traffic control system.This kind of method and technology maturation, is easy to grasp, and has lower-cost advantage.

But this method also has following shortcoming: a. toroid winding is in installation or directly must imbed track when safeguarding, such traffic can temporarily be hindered.B. embedding toroidal joint-cutting has softened road surface, easily makes road surface impaired, and especially in the crossroad having signal to control, damaging when vehicle launch or braking may be more serious.C. toroid winding is subject to the impact of freezing, subgrade settlement, the physical environment such as saline and alkaline.D. toroid winding limited due to the measuring principle of self, and when wagon flow is blocked up, time following distance is less than 3m, its accuracy of detection significantly reduces, and even cannot detect.

(2) ripple wagon detector (mostly being suspension type detection system) frequently

Ripple frequently wagon detector is the detecting device with microwave, ultrasound wave and infrared ray etc., vehicle emissions electromagnetic wave being produced to induction, here microwave vehicle detecting device is mainly introduced, it is that a kind of price is low, the traffic detector of superior performance, and the transport information that can be widely used in urban road and highway detects.

The working method of microwave vehicle detecting device is: adopt side hanging, launch continuous print low-power modulated microwave in sector region, and on road surface, leave a long projection.Microwave vehicle detecting device is one " layer " with 2 meters, is 32 layers by projection localization.Surveyed area can be defined as one or more layers by user.The echo that microwave vehicle detecting device returns according to detected target, is calculated the transport information of target, is sent at set intervals by RS-232 to control center.Its Bus-Speed Monitoring principle is: suppose a fixing vehicle commander according to all vehicles of specific region, calculates the speed of a motor vehicle by the entering of vehicle in induction view field with the time leaving experience.A microwave vehicle detecting device side hangs vehicle flowrate, roadway occupancy and the speed of a motor vehicle that can detect 8 tracks simultaneously.

The metering system of microwave vehicle detecting device is single in vehicle, traffic flow stability, on the road that the speed of a motor vehicle is evenly distributed, accuracy is higher, but to block up and large car is more, vehicle section pockety in wagon flow, owing to blocking, measuring accuracy can be subject to larger impact.In addition, microwave detector requires the space having 3m from nearest track, as detected 8 tracks, also needs the distance of 7-9m and setting height(from bottom) to reach requirement from nearest track.Therefore, the installation in bridge, grade separation, viaduct can be restricted, and install difficulty, price also costly.

(3) video-based vehicle detection

Video-based vehicle detection makes sensor by video camera, arranges virtual coil, i.e. detection zone in range of video, when vehicle enters detection zone, background gray levels changed, thus learn the existence of vehicle, and detect flow and the speed of vehicle with this.Detecting device can be arranged on top and the side in track, compared with traditional traffic information collection technology, traffic video detection technology can provide on-the-spot video image, can mobility detect coil as required, have intuitive and reliable, the advantages such as Installation and Debugging are easy to maintenance, low price, shortcoming is that the dynamic shadow of automobile also can bring interference easily by the impact of the environmental factors such as inclement weather, light, shade.

All there is the defect of different aspect in above-mentioned detecting device, therefore comparatively advanced at present solution have employed the pick-up unit based on magnetoresistive transducer, when utilizing vehicle to enter within the scope of sensor measurement, front end engine, the inner ferromagnetic material such as axletree can magnetic fields makes it be distorted and the principle that distorts realizes vehicle over the ground detection, shown in Fig. 1, prior art discloses a kind of based on giant magnetoresistance (GiantMagnetoResistance, GMR) vehicle detecting system of Magnetic Sensor, also comprise indoor and outdoor light emitting diode (Lightemittingdiode, LED) board is induced, the equipment such as multiple vehicle detection machines, and in conjunction with low cost, low-power consumption, zigBee (ZigBee protocol) wireless communication technology of MANET, set up the vehicle management monitoring system of a set of complexity, this system cost is expensive, design is complicated, inconvenience is installed, and in view of this GMR Magnetic Sensor inherently characteristic, this system is caused to have sensitivity low, error in judgement is large, the natural defect that temperature drift is large.

Utility model content

Under the technical problems to be solved in the utility model is to provide a kind of intelligent parking monitoring management system and car-parking model, vehicle enters position detecting method, to solve the problem that cost is high, installation is complicated, sensitivity is low, error is large and warm drift is large existing for prior art.

For solving the problems of the technologies described above, the utility model embodiment provides a kind of intelligent parking monitoring management system, and for the wagon detector in this system, supervision and management center of parking, specific as follows:

A kind of intelligent parking monitoring management system, this system comprises: wagon detector, wireless communication unit and supervision and management center of parking, and described wagon detector comprises: infrared detection module and GMI detection module; It is characterized in that: described wagon detector, generate the information of vehicles on parking stall after the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on the parking stall having no signal and described GMI detection module to detect for the vehicle on the parking stall detected described infrared detection module carries out overall treatment and be sent to described wireless communication unit; Described wireless communication unit, for receiving the information of vehicles from wagon detector, and is gathered and is sent to supervision and management center of parking; Described supervision and management center of parking, for processing the information of vehicles receiving described parking stall, and carries out monitoring management and accounting management according to result to parking space information.

Preferably, described wireless communication unit comprises: via node and aggregation node; Described via node, for receiving the information of vehicles on the parking stall that described wagon detector sends, and the information of vehicles on the described parking stall received is carried out processing and being sent to target device, wherein, described target device comprises: aggregation node, Street lamps control cabinet; Described aggregation node, for receiving the information of vehicles on the parking stall after process that described via node sends, and supervision and management center of parking described in described information of vehicles is transferred to by wireless communication technology; Described wireless communication technology comprises WIFI, mobile communications network.

Preferably, this system also comprises: user terminal, managerial personnel's terminal and large data service center; Described supervision and management center of parking carries out monitoring management to parking space information and comprises: gather parking position occupied information, store each parking stall parking photo and carry out Car license recognition, monitor vehicle detector voltage and import positional information and the geography information of the new wagon detector installed, and mate described positional information and geography information; Described supervision and management center of parking comprises parking stall accounting management: inquire about arrearage, record this down time on each parking stall, determine these parking rate according to the car plate of this down time and identification and described rate are sent to described managerial personnel's terminal; Described managerial personnel's terminal, for showing the actual parking stall numbering taken of parking vehicle, for the service state of monitoring vehicle detecting device, for to take pictures to described parking vehicle and supervision and management center of parking described in being uploaded to, the compression of images included by terminal and the frame OCR that takes pictures obtain software information and point duty are controlled unit data shares, also charge for the basis user of tariff information to parking vehicle that supervision and management center sends that park; Described large data service center, for providing GIS map, navigation and Third-party payment interface for user, also for parking the parking space information in supervision and management center carry out adding up and issue described in obtaining, described parking space information comprises: the empty parking space sum of specified location in user peripheral extent, the longitude and latitude on each parking stall, whether parking stall is occupied; Described user terminal, for provided according to described large data service center by user GIS map, navigation and parking space information, target setting parking stall, and utilize navigation feature to control vehicle arrival object parking stall, when user leaves target parking position, by these parking rate of cash, credit card or Third-party payment payment interface.

Preferably, described wireless communication unit comprises: at least 1 aggregation node and at least 1 via node; Wherein, described wireless communication unit and wagon detector form cordless communication network, and described cordless communication network adopts netted/stelliform connection topology configuration, and described via node is the aggregation node not with GPRS/3G/4G function; Each via node is connected by wireless with at least one wagon detector, the wagon detector that described via node is connected with this via node forms a Star Network, the information of vehicles on the parking stall detected is sent at least one via node described by described wagon detector, and the radio communication composition mesh network by different channel between multiple via node transmits described information of vehicles to aggregation node; 1 aggregation node is disposed in each parking lot, at least one via node and at least one wagon detector; Described aggregation node, supervision and management center of parking described in being uploaded to for the information of vehicles on the parking stall that wagon detectors all in whole cordless communication network are detected.

Preferably, described via node comprises: the wireless communication module of a wireless communication module or two different frequency ranges.

Preferably, described wireless communication unit comprises at least one aggregation node, forms cordless communication network by described wireless communication unit and wagon detector, and described cordless communication network adopts stelliform connection topology configuration; Wherein, each aggregation node is connected with at least one wagon detector, the wagon detector that described aggregation node is connected with this aggregation node forms a Star Network, adopt different channels to work between each aggregation node, at least one aggregation node and at least one wagon detector are disposed in each parking lot simultaneously; Described aggregation node, supervision and management center of parking described in being uploaded to for the information of vehicles on the parking stall that all wagon detectors being connected to this aggregation node received are detected.

Preferably, described GMI detection module comprises: resonant circuit unit and magnetic anomaly detect modulate circuit unit, and wherein, described resonant circuit unit comprises: excitation oscillation device, magnetic resonance driving circuit and magnetosensitive GMI pop one's head in; Described excitation oscillation device, for excitation high-frequency ac current of popping one's head in for described magnetosensitive GMI; Described magnetic resonance driving circuit, makes described magnetosensitive GMI pop one's head in for utilizing described high-frequency ac current and produces magnetic resonance; Described magnetosensitive GMI pops one's head in, for measuring the variable signal in magnetic field; Described magnetic anomaly detects modulate circuit unit, for processing the variable signal in the magnetic field measured, and detects the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on parking stall according to result.

Preferably, described infrared detection module comprises: infrared transmitting circuit and infrared receiving circuit; Described infrared transmitting circuit, for launching the infrared waves of the fixed frequency of modulation, when the infrared waves of described fixed frequency is by occlusion, described infrared waves reflects back into described infrared receiving circuit; Described infrared receiving circuit, for receiving the infrared waves of the fixed frequency of reflection, and signal receiving is carried out to described infrared waves go out numerical information, if receive the infrared waves of this fixed frequency, export numeral 0,0 and indicate car signal, if do not receive the infrared waves of this fixed frequency, exporting numeral 1,1 indicates without car signal; Also simultaneously for the coding number of recruiting unit's Time Continuous, measuring vehicle and ground height, identify the fundamental type of vehicle.

Preferably, this infrared detection module also comprises safe anti-interference communication circuit, and it is for filtering the non-coding clutter in infrared waves; Or described fixed frequency is the arbitrary fixed value in 30-60Khz, and described fixed value is 38Khz, 40Khz or 42Khz.

Preferably, described wagon detector also comprises: mercury cut-off; Described mercury cut-off, for controlling the duty of described wagon detector power supply by the laying state of described mercury cut-off; When this mercury cut-off forward is placed, the power supply of described wagon detector is open mode; When placement swung to by this mercury cut-off, the power supply of described wagon detector is closed condition.

Preferably, described wagon detector adopts shell structure, and described shell structure comprises infrared filter.

Preferably, this shell structure adopts non-magnetic compression-resistant material or the compression-resistant material without metal.

Preferably, described wagon detector also comprises: ultrasonic sensor, for detecting surrounding enviroment information; Described wagon detector, also detects for the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on the parking stall that vehicle has no signal, described GMI detection module detects on the parking stall detected described infrared detection module and described ultrasonic sensor and generates the information of vehicles on parking stall after surrounding enviroment information carries out overall treatment and be sent to described wireless communication unit.

Preferably, this system also comprises: identification card reader; Described identification card reader, for reading the essential information of vehicle and supervision and management center of parking described in being transmitted it to by described wireless communication unit, described essential information comprises: license number, car type, vehicle; Described supervision and management center of parking, the essential information also for the vehicle read the information of vehicles and described identification card reader that receive described parking stall processes, and carries out monitoring management and accounting management according to result to parking space information; And can also read and write described identification card reader, supplement with money and by described identification card reader, parking be charged.

Preferably, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

A kind of wagon detector, it comprises GMI detection module, for detecting the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on parking stall; It is characterized in that: described GMI detection module comprises: resonant circuit unit and magnetic anomaly detect modulate circuit unit; Wherein, described resonant circuit unit, produces magnetic resonance for encouraging high-frequency ac current and produces the variable signal for measuring magnetic field; Described magnetic anomaly detects modulate circuit unit, for processing the variable signal in the magnetic field measured, and detects the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on parking stall according to result.

Preferably, described resonant circuit unit comprises: excitation oscillation device, magnetic resonance driving circuit and magnetosensitive GMI pop one's head in; Wherein, described excitation oscillation device, for excitation high-frequency ac current of popping one's head in for described magnetosensitive GMI; Described magnetic resonance driving circuit, makes described magnetosensitive GMI pop one's head in for utilizing described high-frequency ac current and produces magnetic resonance; Described magnetosensitive GMI pops one's head in, for measuring the variable signal in magnetic field.

Preferably, described wagon detector also comprises: ultrasonic sensor, for detecting the surrounding enviroment information of described ultrasonic sensor; Described wagon detector, also detects for the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on parking stall that detects described GMI detection module and described ultrasonic sensor the information of vehicles generating parking stall after surrounding enviroment information carries out overall treatment.

Preferably, described wagon detector adopts shell structure, and this shell structure comprises infrared filter, and this shell structure adopts non-magnetic compression-resistant material or the compression-resistant material without metal; Or described wagon detector adopts two magnetic module generation orthohormbic structure, carries out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

Preferably, this wagon detector also comprises infrared detection module, it is characterized in that: described wagon detector, after the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on the parking stall having no signal and described GMI detection module to detect for the vehicle on the parking stall detected described infrared detection module carries out overall treatment, generate the information of vehicles on parking stall.

Preferably, described infrared detection module comprises: infrared transmitting circuit and infrared receiving circuit; Described infrared transmitting circuit, for launching the infrared waves of the fixed frequency of modulation, when the infrared waves of described fixed frequency is by occlusion, described infrared waves reflects back into described infrared receiving circuit;

Described infrared receiving circuit, for receiving the infrared waves of the fixed frequency of reflection, and carries out signal receiving to described infrared waves and goes out numerical information.

Preferably, described infrared detection module comprises: infrared transmitting circuit and infrared receiving circuit; Described infrared transmitting circuit, for launching the infrared waves of the fixed frequency of modulation, when the infrared waves of described fixed frequency is by occlusion, described infrared waves reflects back into described infrared receiving circuit; Described infrared receiving circuit, for receiving the infrared waves of the fixed frequency of reflection, and carries out signal receiving to described infrared waves and goes out numerical information.

Preferably, described infrared receiving circuit: also simultaneously for the coding number of recruiting unit's Time Continuous, the fundamental type of the level identification vehicle on measuring vehicle and ground; Or described fixed frequency is the arbitrary fixed value in 30-60Khz.

Preferably, described fixed value is 38Khz, 40Khz or 42Khz.

Obtain a system for the idle parking stall sum in parking lot, it, without the need to being connected the empty parking space quantity that also can accurately calculate in parking lot with the supervisory system in parking lot, comprises 1 entrance wagon detector, 1 outlet wagon detector and 1 aggregation node; It is characterized in that: described entrance wagon detector, is arranged on the entry position in parking lot, for counting entering vehicle; Described outlet wagon detector, is arranged on the exit position in parking lot, for counting leaving vehicle; Described aggregation node, communicate with above-mentioned wagon detector the count value obtaining and enter vehicle He leave vehicle, and in conjunction with current parking lot parking stall sum, entrance vehicle numerical value and leave vehicle numerical value and carry out the quantity that computing obtains idle parking stall, parking lot.

Preferably, described entrance wagon detector, counts entering vehicle by using GMI magnetic anomaly sensor and infrared sensor; Described outlet wagon detector, counts leaving vehicle by using GMI magnetic anomaly sensor and infrared sensor; Computing is obtained the quantity of idle parking stall, parking lot by described aggregation node, is transferred to outside supervision and management center of parking, user terminal, managerial personnel's terminal or large data service center by the Internet, mobile Internet or other wireless communication technologys.

Preferably, when described entrance wagon detector and outlet wagon detector are for judging vehicle count, determine that a vehicle is through information by magnetic anomaly sensor forward and inverse change pattern, and carry out auxiliary judgment in conjunction with infrared sensor, under the condition obtaining certain idle parking stall, time parking lot number, realize vacant parking stall statistics by the monitoring counting of entrance wagon detector and the monitoring counting of outlet wagon detector.

The beneficial effect of technique scheme of the present utility model is as follows:

In such scheme, generate the information of vehicles on parking stall after the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on the parking stall having no signal and described GMI detection module to detect by the vehicle of wagon detector to the parking stall that described infrared detection module detects carries out overall treatment and be sent to described wireless communication unit, by supervision and management center of parking, the information of vehicles receiving described parking stall is processed again, and according to result, monitoring management and accounting management are carried out to parking space information.Like this, determined the information of vehicles on parking stall by GMI detection module and infrared detection module, antijamming capability is strong, highly sensitive, resolving power is high, without temperature drift, can improve the accuracy of detection, and GMI detection module technique, circuit structure are simple, cost is low.

Accompanying drawing explanation

Fig. 1 is the structural drawing of intelligent berth of the prior art parking management system;

A kind of structural drawing of the intelligent berth parking management system that Fig. 2 provides for the utility model embodiment 1;

The wagon detector structural drawing that Fig. 3 provides for the utility model embodiment 1;

The infrared detection function structure chart that Fig. 4 provides for the utility model embodiment 1;

The infrared waves emission principle structural drawing that Fig. 5 provides for the utility model embodiment 1;

The infrared waves record principle structural drawing that Fig. 6 provides for the utility model embodiment 1;

The structural drawing of the GMI detection module that Fig. 7 provides for the utility model embodiment 1;

The resonant circuit cellular construction figure of the GMI detection module that Fig. 8 provides for the utility model embodiment 1;

The magnetic anomaly of the GMI detection module that Fig. 9 provides for the utility model embodiment 1 detects modulate circuit cellular construction figure;

The repeater figure that Figure 10 provides for the utility model embodiment 1;

The shell schematic diagram of the wagon detector that Figure 11 provides for the utility model embodiment 1;

The front view of the wagon detector that Figure 12 provides for the utility model embodiment 1;

The structural representation of the wagon detector that Figure 13 provides for the utility model embodiment 1;

Another structural drawing of the intelligent parking monitoring management system that Figure 14 provides for the utility model embodiment 2;

A kind of topology diagram of the cordless communication network that Figure 15 provides for the utility model embodiment 2;

Another topology diagram of the cordless communication network that Figure 16 provides for the utility model embodiment 2;

The method flow diagram of the cordless communication network work that Figure 17 provides for the utility model embodiment 2;

Figure 18 adds the process flow diagram of network for wagon detector that the utility model embodiment 2 provides;

The process flow diagram of the relay selection algorithm that Figure 19 provides for the utility model embodiment 2;

The schematic flow sheet of the resource allocation methods that Figure 20 provides for the utility model embodiment 2;

The low-power consumption testing process schematic diagram that Figure 21 provides for the utility model embodiment 2;

The structural drawing of the supervision and management center of parking that Figure 22 provides for the utility model embodiment 2;

Figure 23 is the interaction diagrams of the utility model embodiment 2 the managerial personnel's terminal provided and supervision and management center of parking;

Managerial personnel's workflow diagram that Figure 24 provides for the utility model embodiment 2;

The interaction diagrams of the user terminal that Figure 25 provides for the utility model embodiment 2 and large data center;

A kind of structural drawing based on the intelligent parking berth management system that GMI detects and ultrasonic sensor forms that Figure 26 provides for the utility model embodiment 3;

A kind of structural drawing based on the intelligent parking berth management system that GMI detects and identification card reader forms that Figure 27 provides for the utility model embodiment 4;

The method of a kind of wagon detector judgement parking stall state that Figure 28 provides for the utility model embodiment 5;

The vehicle that Figure 29 provides for the utility model embodiment 6 is from the course of work schematic diagram of side parking;

Under a kind of car-parking model that Figure 30 provides for the utility model embodiment 6, vehicle enters position detecting method.

A kind of system schematic obtaining the idle parking stall sum in parking lot that Figure 31 provides for the utility model embodiment 7.

A kind of vehicle room detection method process flow diagram based on managerial personnel's terminal that Figure 32 provides for the utility model embodiment 8.

Embodiment

For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.

Embodiment 1

In the utility model embodiment, described wireless communication unit comprises: via node level aggregation node; Shown in Fig. 2, a kind of intelligent parking monitoring management system that the utility model embodiment provides, comprise: wagon detector, via node, aggregation node and supervision and management center of parking, wherein, described wagon detector, for detecting the information of vehicles on parking stall, and the information detected is sent to aggregation node by via node; Described via node, for receiving the information of vehicles on the parking stall that described wagon detector sends, and by this information transmission to aggregation node; Described aggregation node, the information of vehicles for the parking stall received by described via node is transferred to by the Internet, mobile Internet or other wireless communication technologys supervision and management center of parking; Described supervision and management center of parking, for the information of vehicles on the parking stall that desampler sends, processes the information of vehicles on described parking stall, and carries out monitoring management and accounting management according to result to parking space information

Referring in figure the utility model embodiment, shown in Fig. 3, described wagon detector comprises: infrared detection module, giant magnetic impedance (Giantmagnetoimpedance, GMI) detection module, microprocessor (MicrocontrollerUnit, MCU), wireless transmitter module, wireless RF ID card reader module, described infrared detection module, the vehicle for the parking stall detected has no signal, described GMI detection module, for detecting the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on parking stall, described MCU microprocessor, analog to digital conversion (AnalogtoDigital is carried out for there being the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on no signal and parking stall to the vehicle on the described parking stall detected, A/D) gather, signal processing analysis computing, and after comprehensively identifying, generate the information of vehicles on parking stall, launched by the information of vehicles of described wireless transmitter module by parking stall again, described wireless RF ID card reader module for read vehicle RFID radio-frequency card with information of vehicles.

In the utility model embodiment, shown in Fig. 4, described infrared detection module comprises infrared transmitting circuit and infrared receiving circuit; Described infrared transmitting circuit is for launching the infrared waves of the fixed frequency of modulation, described infrared waves is got back to described infrared receiving circuit by occlusion back reflection, described infrared receiving circuit is for receiving the infrared waves of the fixed frequency of reflection, and signal receiving is carried out to described infrared waves go out numerical information, if receive the infrared waves of this fixed frequency, export numeral 0,0 indicates car signal, if do not receive the infrared waves of this fixed frequency, export numeral 1,1 and indicate without car signal; The coding number of described infrared receiving circuit also simultaneously recruiting unit's Time Continuous, for measuring vehicle and ground height thus identify the fundamental type of vehicle.

Shown in Fig. 5, described infrared transmitting circuit comprises: square-wave generator, modulating coder, driving circuit.Described infrared transmitting circuit detailed process is as follows:

Launched by the infrared tube of 940nm by the 30-60Khz square wave of modulation, provide the fixed frequency infrared waves of modulation for detecting vehicle, for preventing the infrared waves of described fixed frequency from being disturbed by other light waves, described fixed frequency is preferably 38Khz.

Shown in Fig. 6, described infrared receiving circuit comprises: reflected signal input stage, initial amplifier, bandpass filter, amplitude limit automatic gain controller, comparer, Schmidt trigger, not gate driver output.

Referring to Figure 7 shows that GMI detection module, described GMI detection module comprises: resonant circuit unit and magnetic anomaly detect modulate circuit unit.Its principle is a kind of GMI Magnetic Sensor of GMI effect, by the change of measuring circumferentially signal magnetic field, Magnetic Sensor finds that ferromagnetic object moves.The geomagnetic chart linesofforce of surrounding can be caused when ferromagnetic object occurs near GMI Magnetic Sensor time to bend and the change of density, GMI Magnetic Sensor can this small change of perception, and has determined whether that ferromagnetic object occurs nearby by certain judgment criterion.When without car, magnetic field of the earth is in 5.5 Wan Na teslas (nT) (during Beijing area north latitude about 38); When there being car, terrestrial magnetic field is no longer 5.5 ten thousand nT after disturbance, now occurs magnetic anomaly phenomenon.

Shown in Fig. 8, described resonant circuit unit comprises: excitation oscillation device, magnetic resonance driving circuit and magnetosensitive GMI pop one's head in, wherein, described magnetosensitive GMI probe comprises: belong to glass fibre (also claiming amorphous wire) as the magnetosensitive sub-nano golden making magnetic strength core, magnetic detects coil and magnetic compensation coil.Excitation oscillation device, magnetic resonance driving circuit apply high-frequency ac current to described magnetic strength core (amorphous wire), flow through the impedance under influence of magnetic field of magnetic strength core (amorphous wire) high-frequency current to change, by on magnetic strength core around magnetic pick the variable signal that Coil Detector goes out magnetic field, through magnetic anomaly detecting circuit, detect amplifying circuit after export.This GMI Magnetic Sensor have highly sensitive, response is fast and without features such as magnetic hysteresis.Described excitation oscillation device encourages high-frequency ac current for magnetosensitive GMI pops one's head in, and its high-frequency alternating current flows through magnetic resonance driving circuit makes magnetosensitive GMI probe produce magnetic resonance, improves magnetic field detection sensitivity.

Shown in Fig. 9, described magnetic anomaly detects modulate circuit unit and comprises: magnetic compensation circuit, temperature-compensation circuit, magnetic anomaly detecting circuit, detect amplifying circuit, management control circuit.Described magnetic anomaly detects modulate circuit unit for processing the variable signal in the magnetic field measured, and detects the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on parking stall according to result.After censorship after magnetic picks the variable signal in Coil Detector magnetic field goes out amplifying circuit amplification, a part makes magnetic compensation by magnetic compensation circuit to magnetic compensation coil.When described GMI detection module is subject to ambient temperature effect, carry out auto-compensation by temperature-compensation circuit, management control circuit carries out power management to whole GMI detection module, makes it reduce power consumption.

In the utility model embodiment, adopt the GMI Magnetic Sensor of GMI effect compared with GMR Magnetic Sensor, have the following advantages:

1, antijamming capability is strong, highly sensitive, resolving power is high, detection is accurate

The most high energy of GMR Magnetic Sensor resolving power reaches at 7.5nT (7500PT), and response speed is at 1s-15s, highly sensitive; Precisely can detect the information of vehicles on parking stall, fast response time, nanosecond can be realized and detect fast, and antijamming capability is strong, can realize the detection threshold of microvolt rank; The most high energy of GMI Magnetic Sensor resolving power reaches 0.001nT (1PT), and response speed is at 100ns; Preferred its resolving power of GMI Magnetic Sensor can reach (10PT).

2, technique is simple

GMI Magnetic Sensor adopts simple and reliable water to spin wire drawing manufacture and forms, and GMR Magnetic Sensor employing degree membrane process, more complicated.

3, circuit structure is simple

GMI Magnetic Sensor adopts alternating current excitation, and it is highly sensitive realizes without booster tension, can low voltage power supply, as: 1.85V, circuit structure is simple, cost is low, low in energy consumption, volume is little, is convenient to quick industrialization and uses; And GMR Magnetic Sensor adopts DC current excitation, its sensitivity realizes with booster tension, needs ± more than 12V, must have the circuit of booster tension when supply voltage is 5V, and circuit structure is complicated.

4, without temperature drift

GMI Magnetic Sensor comes the magnetic field of change detected by the change detecting AC impedance, detects multi-direction, without temperature drift; And GMR Magnetic Sensor comes change detected magnetic field by the change detecting direct current resistance, when direction of magnetization is identical, resistance has large variable quantity under very weak externally-applied magnetic field, one direction, therefore detects the drift of resistance temperature large.

5, construction volume is little, and volume is little

GMI Magnetic Sensor compared with loop vehicle detector, construction do not affect traffic, construction volume is little, and volume is little, and GMI Magnetic Sensor maintenance cost is low, cost of investment is low, low in energy consumption.

Shown in Figure 10, described via node comprises: data processor MCU, wireless transmit/receive units 1, wireless transmit/receive units 2,485 communication interface, serial communication interface, general packet radio service technology (GeneralPacketRadioService, GPRS) communication interface, TTL output circuit, power transfer module; Described via node, for receiving the information of vehicles on the parking stall that wagon detector sends and being transmitted to target device, described target device comprises: aggregation node or equipment control cabinet etc.Received the information of vehicles on the parking stall that wagon detector sends by described via node wireless transmit/receive units 1, the information of vehicles on described parking stall is transformed into wireless transmit/receive units 2,485 communication interface, serial communication interface, GPRS communication interface, TTL output circuit be sent to receiver, red Street lamps control cabinet or wireless network by described data processor MCU.

Shown in Figure 11, described wagon detector adopts shell structure, can waterproof and dampproof, optical beam path, and adopts the compression-resistant material without metal, can prevent described wagon detector from moving, thus protect described wagon detector.

Shown in Figure 12,13, the shell of described wagon detector comprises: battery, waterproof apron, light Jiao is poly-, infrared filter, communication antenna, and wherein, described light Jiao gathers the energy for improving light, and infrared filter is used for preventing other spectra1 interfer-, reduces wrong report.

In the utility model embodiment, described wagon detector also comprises: mercury cut-off, described mercury cut-off, for being controlled the duty of described wagon detector power supply by the laying state of described mercury cut-off.When described mercury cut-off forward is placed, the power supply of described wagon detector is open mode; Otherwise when placement swung to by mercury cut-off, the power supply of described wagon detector is closed condition.

Embodiment 2

Shown in Figure 14, embodiment 2 of the present utility model provides a kind of intelligent parking monitoring management system, and this system comprises: wagon detector, wireless communication unit, park supervision and management center and large data service center, managerial personnel's terminal and user terminal.Wherein, described wagon detector for detecting the information of vehicles on parking stall, and will detect that the information of vehicles on described parking stall to be parked supervision and management center described in being sent to by described wireless communication unit; Described supervision and management center of parking, for processing the information of vehicles receiving described parking stall, and carries out monitoring management and accounting management according to result to parking space information; Described large data service center, for providing GIS map, navigation and Third-party payment interface for user, also for parking the parking space information in supervision and management center carry out adding up and issue described in obtaining; Described managerial personnel's terminal, for the managerial personnel in parking lot for parking space information, the checking of information of vehicles, typing and charge; Described user terminal, for inquiring about parking spot, navigation and payment.

In the utility model embodiment, described wireless communication unit comprises: at least 1 aggregation node and at least 1 via node, cordless communication network is formed by described wireless communication unit and wagon detector, described cordless communication network adopts netted/stelliform connection topology configuration, shown in Figure 15, wherein, via node is the aggregation node not with GPRS/3G/4G function.In Figure 15, each via node is connected with at least one wagon detector, the wagon detector that described via node is connected with this via node forms a Star Network, the information of vehicles on the parking stall detected is sent to via node by described wagon detector, and the wireless communication module composition mesh network by different channel between via node transmits described information of vehicles to aggregation node.To park described in the information of vehicles on the parking stall that wagon detectors all in whole cordless communication network detect by aggregation node is uploaded to supervision and management center, carry out Storage and Processing by described supervision and management center of parking.Adopt different channels between the Star Network that each via node and wagon detector are formed, can communicate simultaneously, the large scale network of more than 1000 can be formed thus.And between via node, adopt second wireless communication module being different from wagon detector, be operated in different channels, the mutual interference that the communication between via node communicates with wagon detector can be avoided.1 aggregation node is disposed in a parking lot, multiple via node and multiple wagon detector.

In the utility model embodiment, preferably, described in embodiment 1, via node can be used as the via node of the present embodiment 2.

In the utility model embodiment, described wireless communication unit comprises at least one aggregation node, cordless communication network is formed by described wireless communication unit and wagon detector, described cordless communication network adopts stelliform connection topology configuration, shown in Figure 16, wherein, each aggregation node is connected with at least one wagon detector, the wagon detector that described aggregation node is connected with this aggregation node forms a Star Network, adopt different channels to work between each aggregation node, at least one aggregation node and at least one wagon detector are disposed in each parking lot simultaneously; Described aggregation node, supervision and management center of parking described in being uploaded to for the information of vehicles on the parking stall that all wagon detectors be attached thereto received are detected.The network of each aggregation node composition adopts different channels to work simultaneously.

For kind of the topological structure of two shown in Figure 15 and Figure 16, all adopt multichannel communication partition mechanism.For large scale network, if adopt Carrier Sense Multiple Access (CarrierSenseMultipleAccess, CSMA), between node, have interference; If adopt TDMA, time delay is larger.In the utility model embodiment, the wagon detector of each via node or aggregation node management is divided into a logical block, in this element, adopts time division multiple access (TDMA) (TimeDivisionMultipleAccess, TDMA) to communicate, network size is little, and time delay is little; Adopt different channel communication between each via node, the wagon detector being in Different Logic unit like this can simultaneously send data to the via node belonging to it or aggregation node and not produce interference, thus expands network size.

Figure 17 is the communication system functionality of the aggregation node in via node in cordless communication network in wagon detector and Figure 15 or wagon detector and Figure 16, comprising: add network, Resourse Distribute, low-power consumption monitoring.Wherein, add after network can make wagon detector power on and automatically add cordless communication network, Resourse Distribute can realize the division of wagon detector communication time slot, and low-power consumption monitoring can realize low-power consumption monitoring and the network service maintenance function of parking stall information of vehicles breath.

Referring to Figure 18 shows that the process flow diagram adding network, after described via node/aggregation node work, periodic broadcast beacon frame, network with synchronous for wagon detector, the content of this beacon frame comprises: network number, network time, this via node/aggregation node has connected wagon detector quantity, receives the frame slot that joins request.After wagon detector powers on, monitor beacon frame at all channels, and note down the parameter of all beacon frames received: network number, time, signal quality, Received signal strength time, connected node quantity etc.After all channels monitored by wagon detector, find out most suitable via node/aggregation node by relay selection algorithm, to send to this via node/aggregation node in " reception join request frame slot " of this via node/aggregation node and join request.

Join request in packet with the physical address of wagon detector.Determine whether allow this wagon detector to add by via node/aggregation node, and return and add response, if what return is allow to add response, described wagon detector obtains the network address that via node/aggregation node distributes, and completes adition process.Via node/aggregation node needs physical address and the network address of each wagon detector of storage and maintenance.

Shown in Figure 19, after wagon detector powers on, monitor beacon T time at initial channel, be then switched to next channel and monitor T time, until all channels have been monitored.In T time, if receive beacon frame, store beacon frame information.After last channel has been monitored, in the beacon frame information stored, search the beacon that signal quality is best, then judge whether the wagon detector of the access quantity of this beacon reaches the upper limit, if reach the upper limit, again search and store the secondary good beacon of signal quality in beacon frame information; If there is the beacon that multiple signal quality is identical, compare the wagon detector of the access quantity of these beacons, select the beacon having accessed wagon detector minimum number, if there is multiple beacon having accessed wagon detector minimum number, therefrom select at random.Initiate to join request in wagon detector address for the purpose of the via node/aggregation node corresponding to the beacon chosen.

Resource allocation methods shown in Figure 17 is as follows: after wagon detector adds network, obtain the network address that via node/aggregation node distributes to it, the distribution of the network address distributes successively according to from 1 to connecting wagon detector quantity, and wagon detector sends data using its network address as the tdma slot sending data to via node/aggregation node; Via node/aggregation node returns ACK and confirms bag after receiving data.Namely the distribution of TDMA resource is calculated by wagon detector oneself, and do not need to distribute time slot, speed is fast, decreases communication and energy consumption expense that Resourse Distribute brings.In order to ensure the reliability that data are transmitted, in a transmission cycle, except distributing except a time slot to each wagon detector, also reserve n reserved time slot, described reserved time slot, for giving the wagon detector retransmission data during this period of bust this.Shown in Figure 20, a via node with 6 wagon detectors, give each wagon detector by its 1 to No. 6 time slot allocation, 7 and 8 time slots give over to re-transmission.No. 1 wagon detector sends data at 1 time slot, if do not receive ACK, it will carry out CSMA transmission at 7 time slots.Tdma slot is selected to send according to the network address of each node.Because drop probabilities is less, the via node therefore with 6 wagon detectors stays 2 reserved time slots, and such as, at 7 and 8 time slots, wagon detector adopts csma competition to send, and both ensure that transmission reliability, and additionally reduces propagation delay time.

Be depicted as the low-power consumption testing process schematic diagram in Figure 17 referring to Figure 21, described low-power consumption detects and adopts high-frequency detection, low frequency sending method.Namely the vehicle on high frequency time start sensor detection parking stall has no signal, if the signal detected is constant, does not send data at the data sending time slots of this wagon detector, reduces power consumption, changes if detected, sends data.In order to ensure that network connects, when long-time vehicle has no signal constant, described wagon detector sends survival instruction frame and shows that it is working properly to via node or aggregation node; When detecting that signal sends change, stop sending survival instruction frame.

Shown in Figure 22, the major function of described supervision and management center of parking comprises: parking space information administration module and accounting module, wherein parking space information administration module mainly completes gathering of wagon detector data, the positional information of new mounting vehicle detecting device and physical address typing, the coupling of described positional information and physical address; Wagon detector cell voltage is monitored, and parking photo imports.Accounting module mainly complete parking, drive time interocclusal record, rate calculate automatically, arrearage list inquiry etc.

In the utility model embodiment, described large data service center is connected with supervision and management center of parking, the major function of described large data service center comprises: the issue of parking space information, and provide Geographic Information System (GeographicInformationSystem for user, GIS) map, navigation, Third-party payment interface and parking space information, wherein, parking space information comprises: the empty parking space sum of specified position environs, the longitude and latitude on each parking stall, whether parking stall is occupied.

Managerial personnel's terminal is depicted as and the interaction flow of supervision and management center of parking referring to Figure 23, vehicle arrives, wagon detector has detected car information, and data are reported to supervision and management center of parking, and supervision and management center of parking sends vehicle to the keeper of this parking stall and arrives prompting.Managerial personnel's terminal demonstration takies actual parking stall numbering, and to be taken pictures by this terminal, uploads, and supervision and management center storage of parking is taken pictures information carry out Car license recognition, charging; Vehicle leaves, and wagon detector detects leave message and reports supervision and management center of parking, park supervision and management center charging and will leave vehicle parking stall numbering, rate are sent to managerial personnel's terminal.

Managerial personnel's workflow is depicted as referring to Figure 24.Vehicle arrives, wagon detector detects vehicle parking information and is sent to by wireless communication unit supervision and management center of parking, supervision and management center of parking sends parking stall occupied information to managerial personnel's terminal device of managerial personnel, and managerial personnel's terminal reminds managerial personnel by the mode of sound, vibration, message notifying frame; Managerial personnel check and take position, parking stall and go to parking stall to confirm, utilize managerial personnel's terminal taking to stop take pictures, managerial personnel's terminal upload pictures and parking stall positional information, to supervision and management center of parking, start charging.

Vehicle leaves, wagon detector detects vehicle leave message and is sent to by wireless communication unit supervision and management center of parking, supervision and management center of parking sends vehicle leave message to managerial personnel's terminal of managerial personnel, and managerial personnel's terminal reminds managerial personnel by modes such as sound, vibration, message notifying frames; Managerial personnel confirm vehicle leave message and obtain parking charge information, confirm that user pays parking fee with the means such as cash, mobile payment, beginning bill.

The interaction flow of user terminal and large data center is depicted as referring to Figure 25, after user logs in intelligent parking monitoring management system application program (app), call in map, parking space information near destination is searched by self-align or input destination address, after selecting a parking space information, start self-navigation; The continuous real-time update parking space information of app, vehicle arrives parking stall, and user presses parking button; When user leaves, login app presses and leaves button, and system obtains parking rate, license plate information, by cash, credit card or mobile payment paying after confirming.

Embodiment 3

For increasing the reliability of native system, in wagon detector, increase ultrasonic sensor, by GMI detection module and ultrasonic sensor, the information of vehicles to parking stall detects jointly.

Shown in Figure 26, it is a kind of based on the intelligent parking berth management system that GMI detects and ultrasonic sensor forms that the utility model embodiment provides, this system comprises: GMI detection module and ultrasonic sensor composition wagon detector, via node, aggregation node and supervision and management center of parking, wherein, described wagon detector, for detecting the information of vehicles on parking stall, and the information detected is sent to aggregation node by via node; Described aggregation node, for receiving the information of vehicles on the parking stall that described via node sends, and is transferred to by the Internet, mobile Internet or other wireless communication technologys supervision and management center of parking by this information; Described supervision and management center of parking, for receiving the information of vehicles on the parking stall that aggregation node sends, processing the information of vehicles on described parking stall, and carrying out monitoring management and accounting management according to result to parking space information.

Embodiment 4

For increasing the reliability of native system further, increase identification card reader in systems in which.

Shown in Figure 27, it is a kind of based on the intelligent parking berth management system that GMI detects and identification card reader forms that the utility model embodiment provides, comprise: GMI sensor and identification card reader composition information of vehicles readout device, via node, aggregation node and supervision and management center of parking, wherein, described wagon detector, for detecting the information of vehicles on parking stall, and will the information of vehicles on parking stall be detected by repeater transmission to receiver, described identification card reader, for reading information of vehicles and the described information of vehicles read being transferred to via node, described information of vehicles comprises: license number, car type, vehicle etc., described aggregation node, the information of vehicles that information of vehicles and described identification card reader for receiving parking stall read is transferred to by the Internet, mobile Internet or other wireless communication technologys supervision and management center of parking, described supervision and management center of parking, for processing the information of receiving, and carries out monitoring management and accounting management according to result to parking space information, described supervision and management center of parking, also for reading and writing described identification card reader, supplementing with money and charged to parking by described identification card reader.

The utility model embodiment is applicable to the vehicle that microwave electron label is housed, this microwave electron label as electronic ID card, for the identification of moving vehicle; Described microwave electron label is also referred to as the electronic tag of ultrahigh frequency and microwave frequency band, and can be divided into active label and passive label two class, its typical operating frequency is: 433.92MHz, 862 (902) ~ 928MHz, 2.45GHz, 5.8GHz.During work, microwave electron label is positioned at the far zone field of identification card reader radiation field of aerial, and the coupling scheme between microwave electron label and identification card reader are electromagnetic coupled mode.Identification card reader radiation field of aerial provides radio-frequency (RF) energy for passive label, is waken up by active label.Corresponding radio-frequency recognition system reading distance is generally greater than 1m, and typical case is 4 ~ 7m, maximumly reaches more than 10m.Identification card reader antenna is generally directional antenna, and the microwave electron label only in identification card reader antenna direction beam area can by read/write.

When the increase of reading distance, in reading area, in the utility model embodiment, likely occur the situation of multiple microwave electron label simultaneously, thus propose the demand that many microwave electrons label reads simultaneously, and then this development of demand becomes a kind of trend.At present, advanced radio-frequency recognition system is all using the key character of many microwave electrons tag readable degree problem as system.

With state-of-the art, passive microwave electronic tag is on 902 ~ 928MHz working frequency range.2.45GHz and 5.8GHz radio-frequency recognition system emerges mainly with half passive microwave electronic tag product.Half passive label generally adopts button cell to power, and has reading distance far away.

Whether the typical feature of microwave electron label mainly concentrates on whether passive, radio read-write distance, whether supports many microwave electrons tag read, is applicable to identifying application at a high speed, the emissive power tolerance limit of identification card reader, the aspects such as the price of microwave electron label and identification card reader.For the microwave electron label that can wirelessly write, under normal circumstances, write distance is less than recognition distance, and its reason is to write and requires larger energy.

The utility model embodiment is applicable to community, office building, supermarket, parking lot, school, crossing, bayonet socket.

Embodiment 5

The method flow diagram that wagon detector judges parking stall state is depicted as referring to Figure 28, for ensureing the reliability of testing result, stop and leaving the stage, dual sensor is adopted to carry out comprehensive descision to parking stall state, namely described wagon detector is dual sensor structure, comprising: GMI detection module and infrared detection module, and described infrared detection module can be photoelectric detector, described GMI detection module can be Magnetic Sensor, and concrete detection method has following several:

As shown in Figure 28 (a), first wagon detector starts Magnetic Sensor, if when Magnetic Sensor detects invalid information, judges that this parking stall is as idle condition; If after Magnetic Sensor detects effective information, then judge whether photoelectric detector detects effective information, if after photoelectric detector also detects effective information, judge that this parking stall is occupied; If photoelectric detector does not detect effective information, then judge that this parking stall is as idle condition.

As shown in Figure 28 (b), first wagon detector starts Magnetic Sensor, if when Magnetic Sensor detects effective information, judges that this parking stall is occupied; If after Magnetic Sensor detects invalid information, then judge whether photoelectric detector detects effective information, if after photoelectric detector also detects invalid information, judge that this parking stall is as idle condition; If photoelectric detector detects effective information, then judge that this parking stall is occupied.

As shown in Figure 28 (c), first wagon detector starts photoelectric detector, if when photoelectric detector detects effective information, judges that this parking stall is occupied; If after photoelectric detector detects invalid information, then judge whether Magnetic Sensor detects effective information, if after Magnetic Sensor also detects invalid information, judge that this parking stall is as idle condition; If Magnetic Sensor detects effective information, then judge that this parking stall is occupied.

Preferably, for reducing wagon detector power consumption, extending battery life, at periodicity detection-phase, adopts early-warning detection method, when performing parking stall measure, first any one sensor started in described two sensors judges, if judge effectively, directly to provide testing result, if it is invalid to judge, restarts another one sensor and detect.

Wherein, detection method exemplified by above-mentioned Figure 28 (a)-(c) can combinationally use at different parking detection-phases, wherein for Figure 28 (b) and Figure 28 (c), in the method shown in the preferred Figure 28 (c) of periodicity detection-phase.

Embodiment 6

In another embodiment of the present utility model, for ensureing that vehicle parking enters the reliability of position and the interference by way of vehicle, adopting stops monitors recognition methods continuously.

Referring to being the course of work of vehicle from side parking shown in Figure 29, in the process, vehicle occurs repeatedly advance and fall back, constantly change with the distance of wagon detector, described wagon detector is dual sensor structure, comprise: GMI detection module and infrared detection module, described infrared detection module can be photoelectric detector, and described GMI detection module can be Magnetic Sensor.The utility model embodiment employing car-parking model vehicle enters position detecting method and judges parking occupy-place, shown in Figure 30, wagon detector can record last environmental magnetic field, after Magnetic Sensor detects magnetic signal, enable timer, enter continuous detecting mode detection magnetic signal and light signal, and the magnetic signal detected and light signal are stored, moving forward and backward of vehicle can produce forward and reverse magnetic anomaly signal, by the continuous action of continuous forward and reverse magnetic anomaly Signal analysis vehicle, after reaching the timer schedule time, wagon detector sensed light signal and magnetic signal, if photoelectric sensor detects light signal, magnetic anomaly blackout simultaneously, and when the difference of the environmental magnetic field of the magnetic signal that Magnetic Sensor detects and record is less than predetermined threshold value, think parking, otherwise carry out alarm.

Preferably, described vehicle enters position detecting method and is also applicable to other type Magnetic Sensor, the action recognition of vehicle forward-reverse is realized by the intensity and photo-sensor signal will identifying magnetic signal, be less than predetermined threshold value with the difference of the magnetic signal monitored and environmental magnetic field, and judge vehicle whether parking in conjunction with photoelectric sensor.In like manner, when carrying out vehicle and leaving detection, using photoelectric sensor and continuous vehicle forward-reverse action recognition as Rule of judgment, as long as find that vehicle has motion, and photoelectric sensor is detected as sky, then think that vehicle leaves.

Preferably, for ensureing that Magnetic testi is not disturbed by extraneous high-intensity magnetic field, two magnetic module generation orthohormbic structure is adopted in wagon detector, carry out horizontal and vertical magnetic anomaly detection respectively, when vehicle sensors receives strong magnetic interference, can only interfere with one of them Magnetic Sensor, another Magnetic Sensor still can normally work.Thus realize strong anti-interference ability.

Embodiment 7

As shown in figure 31, for ease of obtaining the idle parking stall sum of community parking field, underground parking, the utility model example adopts a kind of detection method of the parking stall when parking system of getting along well connects to calculate the system of empty wagons quantity in parking lot, comprising: 1 entrance wagon detector, 1 just export wagon detector, 1 aggregation node.Described entrance wagon detector counts entering vehicle by using magnetic anomaly sensor and infrared sensor; Described outlet wagon detector counts leaving vehicle by using magnetic anomaly sensor and infrared sensor; Aggregation node is used for communicating with two wagon detectors and by the entrance vehicle number of wagon detector with export vehicle number computing and obtain idle parking stall, parking lot, mistake the Internet, mobile Internet or other wireless communication technologys are transferred to supervision and management center of parking.

When entrance wagon detector and outlet wagon detector are for judging vehicle count, determine that a vehicle is through information by magnetic anomaly sensor forward and inverse change pattern, and carrying out auxiliary judgment in conjunction with infrared sensor.Under the condition obtaining certain idle parking stall, time parking lot number, realize vacant parking stall statistics by the monitoring counting of entrance wagon detector and the monitoring counting of outlet wagon detector.

The utility model discloses a kind of method obtaining the idle parking stall sum in parking lot based on this system, comprise the steps:

Enter vehicle count step: by being arranged on the entrance wagon detector of the entry position in parking lot, count entering vehicle; Leave vehicle count step: by being arranged on the outlet wagon detector of the exit position in parking lot, count leaving vehicle; Idle parking stall, parking lot counting step: aggregation node communicates with above-mentioned wagon detector the count value obtaining and enter vehicle He leave vehicle, and, entrance vehicle numerical value total in conjunction with the parking stall in current parking lot and leave vehicle numerical value and carry out the quantity that computing obtains parking lot free time parking stall.

Wherein, entering in vehicle count step described: described entrance wagon detector, counting entering vehicle by using GMI magnetic anomaly sensor and infrared sensor; Leaving in vehicle count step described: described outlet wagon detector, counting leaving vehicle by using GMI magnetic anomaly sensor and infrared sensor; Computing is obtained the quantity of idle parking stall, parking lot by described aggregation node, is transferred to outside supervision and management center of parking, user terminal, managerial personnel's terminal or large data service center by the Internet, mobile Internet or other wireless communication technologys.

Embodiment 8

In order to reduce costs, the utility model provides a kind of vehicle room detection method based on administrator terminal.

Managerial personnel's terminal as shown in figure 32 monitors the interaction flow at back-stage management center with parking, and comprising:

After vehicle arrives, vehicle is arrived information and sends to managerial personnel's terminal by monitoring back-stage management center of parking, after this terminal obtains vehicle arrival information, described arrival vehicle is taken pictures and identified the number-plate number, park described in picture of license board information and this being taken pictures is uploaded to together and monitor back-stage management center, described monitoring back-stage management this license board information of central store and the picture of taking pictures of parking, obtain the current down time of this vehicle, and total duration that this vehicle is parked in parking lot is carried out timing, upgraded the room quantity in current parking lot;

When vehicle leaves, park monitoring back-stage management center vehicle leave message is sent to managerial personnel's terminal, after this terminal obtains vehicle leave message, this managerial personnel's terminal is taken pictures to this vehicle again, and the number-plate number is identified, park described in picture of license board information and this being taken pictures is uploaded to together and monitor back-stage management center, described monitoring back-stage management this license board information of central store and the picture of taking pictures of parking, obtain the time departure of this vehicle, the room quantity in current parking lot is upgraded, after calculating the Parking Fee of this vehicle, above-mentioned information is sent to managerial personnel's terminal, managerial personnel's terminal obtains the total duration of parking of this vehicle, Parking Fee, and Car park payment is carried out to this vehicle, can cash, the means such as mobile payment pay parking fee, beginning bill.

Under this kind of mode, automatically do not identify the arrival of vehicle by wagon detector and leave, managerial personnel must participating in stopping, leaving and paying process, but can realize the statistics of vacant parking space information by stopping to take pictures and leave to take pictures, is a kind of embodiment of low hardware cost.

The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. an intelligent parking monitoring management system, this system comprises: wagon detector, wireless communication unit and supervision and management center of parking, and described wagon detector comprises: infrared detection module and GMI detection module; It is characterized in that:

Described wagon detector, generates the information of vehicles on parking stall after the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on the parking stall having no signal and described GMI detection module to detect for the vehicle on the parking stall detected described infrared detection module carries out overall treatment and is sent to described wireless communication unit;

Described wireless communication unit, for receiving the information of vehicles from wagon detector, and is gathered and is sent to supervision and management center of parking;

Described supervision and management center of parking, for processing the information of vehicles receiving described parking stall, and carries out monitoring management and accounting management according to result to parking space information.

2. system according to claim 1, is characterized in that, described wireless communication unit comprises: via node and aggregation node;

Described via node, for receiving the information of vehicles on the parking stall that described wagon detector sends, and the information of vehicles on the described parking stall received is carried out processing and being sent to target device, wherein, described target device comprises: aggregation node, Street lamps control cabinet;

Described aggregation node, for receiving the information of vehicles on the parking stall after process that described via node sends, and supervision and management center of parking described in described information of vehicles is transferred to by wireless communication technology; Described wireless communication technology comprises WIFI, mobile communications network.

3. system according to claim 1, is characterized in that, this system also comprises: user terminal, managerial personnel's terminal and large data service center;

Described supervision and management center of parking carries out monitoring management to parking space information and comprises: gather parking position occupied information, store each parking stall parking photo and carry out Car license recognition, monitor vehicle detector voltage and import positional information and the geography information of the new wagon detector installed, and mate described positional information and geography information;

Described supervision and management center of parking comprises parking stall accounting management: inquire about arrearage, record this down time on each parking stall, determine these parking rate according to the car plate of this down time and identification and described rate are sent to described managerial personnel's terminal;

Described managerial personnel's terminal, for showing the actual parking stall numbering taken of parking vehicle, for the service state of monitoring vehicle detecting device, for to take pictures to described parking vehicle and supervision and management center of parking described in being uploaded to, the compression of images included by terminal and the frame OCR that takes pictures obtain software information and point duty are controlled unit data shares, also charge for the basis user of tariff information to parking vehicle that supervision and management center sends that park;

Described large data service center, for providing GIS map, navigation and Third-party payment interface for user, also for parking the parking space information in supervision and management center carry out adding up and issue described in obtaining, described parking space information comprises: the empty parking space sum of specified location in user peripheral extent, the longitude and latitude on each parking stall, whether parking stall is occupied;

Described user terminal, for provided according to described large data service center by user GIS map, navigation and parking space information, target setting parking stall, and utilize navigation feature to control vehicle arrival object parking stall, when user leaves target parking position, by these parking rate of cash, credit card or Third-party payment payment interface.

4. system according to claim 1, is characterized in that, described wireless communication unit comprises: at least 1 aggregation node and at least 1 via node;

Wherein, described wireless communication unit and wagon detector form cordless communication network, and described cordless communication network adopts netted/stelliform connection topology configuration, and described via node is the aggregation node not with GPRS/3G/4G function;

Each via node is connected by wireless with at least one wagon detector, the wagon detector that described via node is connected with this via node forms a Star Network, the information of vehicles on the parking stall detected is sent at least one via node described by described wagon detector, and the radio communication composition mesh network by different channel between multiple via node transmits described information of vehicles to aggregation node; 1 aggregation node is disposed in each parking lot, at least one via node and at least one wagon detector;

Described aggregation node, supervision and management center of parking described in being uploaded to for the information of vehicles on the parking stall that wagon detectors all in whole cordless communication network are detected.

5. system according to claim 4, is characterized in that, described via node comprises: the wireless communication module of a wireless communication module or two different frequency ranges.

6. system according to claim 1, is characterized in that, described wireless communication unit comprises at least one aggregation node, forms cordless communication network by described wireless communication unit and wagon detector, and described cordless communication network adopts stelliform connection topology configuration;

Wherein, each aggregation node is connected with at least one wagon detector, the wagon detector that described aggregation node is connected with this aggregation node forms a Star Network, adopt different channels to work between each aggregation node, at least one aggregation node and at least one wagon detector are disposed in each parking lot simultaneously;

Described aggregation node, supervision and management center of parking described in being uploaded to for the information of vehicles on the parking stall that all wagon detectors being connected to this aggregation node received are detected.

7. according to the arbitrary described system of claim 1-6, it is characterized in that, described GMI detection module comprises: resonant circuit unit and magnetic anomaly detect modulate circuit unit, and wherein, described resonant circuit unit comprises: excitation oscillation device, magnetic resonance driving circuit and magnetosensitive GMI pop one's head in;

Described excitation oscillation device, for excitation high-frequency ac current of popping one's head in for described magnetosensitive GMI;

Described magnetic resonance driving circuit, makes described magnetosensitive GMI pop one's head in for utilizing described high-frequency ac current and produces magnetic resonance;

Described magnetosensitive GMI pops one's head in, for measuring the variable signal in magnetic field;

Described magnetic anomaly detects modulate circuit unit, for processing the variable signal in the magnetic field measured, and detects the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on parking stall according to result.

8., according to the arbitrary described system of claim 1-6, it is characterized in that, described infrared detection module comprises: infrared transmitting circuit and infrared receiving circuit;

Described infrared transmitting circuit, for launching the infrared waves of the fixed frequency of modulation, when the infrared waves of described fixed frequency is by occlusion, described infrared waves reflects back into described infrared receiving circuit;

Described infrared receiving circuit, for receiving the infrared waves of the fixed frequency of reflection, and signal receiving is carried out to described infrared waves go out numerical information, if receive the infrared waves of this fixed frequency, export numeral 0,0 and indicate car signal, if do not receive the infrared waves of this fixed frequency, exporting numeral 1,1 indicates without car signal; Also simultaneously for the coding number of recruiting unit's Time Continuous, measuring vehicle and ground height, identify the fundamental type of vehicle.

9. according to the system described in claim 7, it is characterized in that, described infrared detection module comprises: infrared transmitting circuit and infrared receiving circuit;

10. according to Claim 8 described in system, it is characterized in that, this infrared detection module also comprises safe anti-interference communication circuit, and it is for filtering the non-coding clutter in infrared waves; Or,

Described fixed frequency is the arbitrary fixed value in 30-60Khz, and described fixed value is 38Khz, 40Khz or 42Khz.

11., according to the system described in claim 9, is characterized in that,

This infrared detection module also comprises safe anti-interference communication circuit, and it is for filtering the non-coding clutter in infrared waves; Or,

12. according to the arbitrary described system of claim 1-6, and it is characterized in that, described wagon detector also comprises: mercury cut-off;

Described mercury cut-off, for controlling the duty of described wagon detector power supply by the laying state of described mercury cut-off; When this mercury cut-off forward is placed, the power supply of described wagon detector is open mode; When placement swung to by this mercury cut-off, the power supply of described wagon detector is closed condition.

13., according to the system described in claim 7, is characterized in that, described wagon detector also comprises: mercury cut-off;

14. according to Claim 8 described in system, it is characterized in that, described wagon detector also comprises: mercury cut-off;

15. according to the arbitrary described system of claim 1-6, and it is characterized in that, described wagon detector adopts shell structure, and described shell structure comprises infrared filter.

16., according to the system described in claim 7, is characterized in that, described wagon detector adopts shell structure, and described shell structure comprises infrared filter.

17. according to Claim 8 described in system, it is characterized in that, described wagon detector adopts shell structure, and described shell structure comprises infrared filter.

18., according to the system described in claim 9, is characterized in that, described wagon detector adopts shell structure, and described shell structure comprises infrared filter.

19. according to the arbitrary described system of claim 16-18, and it is characterized in that, this shell structure adopts non-magnetic compression-resistant material or the compression-resistant material without metal.

20. according to the arbitrary described system of claim 1-6, and it is characterized in that, described wagon detector also comprises: ultrasonic sensor, for detecting surrounding enviroment information;

Described wagon detector, also detects for the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on the parking stall that vehicle has no signal, described GMI detection module detects on the parking stall detected described infrared detection module and described ultrasonic sensor and generates the information of vehicles on parking stall after surrounding enviroment information carries out overall treatment and be sent to described wireless communication unit.

21., according to the system described in claim 7, is characterized in that, described wagon detector also comprises: ultrasonic sensor, for detecting surrounding enviroment information;

22. according to Claim 8 described in system, it is characterized in that, described wagon detector also comprises: ultrasonic sensor, for detecting surrounding enviroment information;

23. according to claim 9-11,13,14, arbitrary described system in 16-18, it is characterized in that, described wagon detector also comprises: ultrasonic sensor, for detecting surrounding enviroment information;

24., according to the system described in claim 10, is characterized in that, described wagon detector also comprises: ultrasonic sensor, for detecting surrounding enviroment information;

25., according to the system described in claim 11, is characterized in that, described wagon detector also comprises: ultrasonic sensor, for detecting surrounding enviroment information;

26., according to the system described in claim 12, is characterized in that, described wagon detector also comprises: ultrasonic sensor, for detecting surrounding enviroment information;

27., according to the system described in claim 15, is characterized in that, described wagon detector also comprises: ultrasonic sensor, for detecting surrounding enviroment information;

28. according to claim 1-6,9,13,14, arbitrary described system in 16-18,24-27, it is characterized in that, also comprise: identification card reader;

Described identification card reader, for reading the essential information of vehicle and supervision and management center of parking described in being transmitted it to by described wireless communication unit, described essential information comprises: license number, car type, vehicle;

Described supervision and management center of parking, the essential information also for the vehicle read the information of vehicles and described identification card reader that receive described parking stall processes, and carries out monitoring management and accounting management according to result to parking space information; And can also read and write described identification card reader, supplement with money and by described identification card reader, parking be charged.

29., according to the system described in claim 7, is characterized in that, also comprise: identification card reader;

30. according to Claim 8 described in system, it is characterized in that, also comprise: identification card reader;

31., according to the system described in claim 10, is characterized in that, also comprise: identification card reader;

32., according to the system described in claim 11, is characterized in that, also comprise: identification card reader;

33., according to the system described in claim 12, is characterized in that, also comprise: identification card reader;

34., according to the system described in claim 15, is characterized in that, also comprise: identification card reader;

35., according to the system described in claim 19, is characterized in that, also comprise: identification card reader;

36., according to the system described in claim 20, is characterized in that, also comprise: identification card reader;

37., according to the system described in claim 21, is characterized in that, also comprise: identification card reader;

38., according to the system described in claim 22, is characterized in that, also comprise: identification card reader;

39., according to the system described in claim 23, is characterized in that, also comprise: identification card reader;

40. according to claim 1-6,9,13,14, arbitrary described system in 16-18,24-27,29-39, it is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

41. systems according to claim 7, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

42. systems according to claim 8, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

43. systems according to claim 10, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

44. systems according to claim 11, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

45. systems according to claim 12, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

46. systems according to claim 15, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

47. systems according to claim 19, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

48. systems according to claim 20, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

49. systems according to claim 21, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

50. systems according to claim 22, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

51. systems according to claim 23, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

52. systems according to claim 28, is characterized in that, described wagon detector adopts two magnetic module, and described pair of magnetic module generation orthohormbic structure, carry out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

53. 1 kinds of wagon detectors, it comprises GMI detection module, for detecting the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on parking stall; It is characterized in that: described GMI detection module comprises: resonant circuit unit and magnetic anomaly detect modulate circuit unit;

Wherein, described resonant circuit unit, produces magnetic resonance for encouraging high-frequency ac current and produces the variable signal for measuring magnetic field;

54. wagon detectors according to claim 53, is characterized in that:

Described resonant circuit unit comprises: excitation oscillation device, magnetic resonance driving circuit and magnetosensitive GMI pop one's head in; Wherein,

Described magnetosensitive GMI pops one's head in, for measuring the variable signal in magnetic field.

55. wagon detectors according to claim 53 or 54, it is characterized in that, described wagon detector also comprises: mercury cut-off;

56. wagon detectors according to claim 53 or 54, is characterized in that:

Described wagon detector also comprises: ultrasonic sensor, for detecting the surrounding enviroment information of described ultrasonic sensor;

Described wagon detector, also detects for the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on parking stall that detects described GMI detection module and described ultrasonic sensor the information of vehicles generating parking stall after surrounding enviroment information carries out overall treatment.

57. wagon detectors according to claim 55, is characterized in that:

58. wagon detectors according to claim 53 or 54, is characterized in that:

Described wagon detector adopts shell structure, and this shell structure comprises infrared filter, and this shell structure adopts non-magnetic compression-resistant material or the compression-resistant material without metal;

Or described wagon detector adopts two magnetic module generation orthohormbic structure, carries out transverse magnetic abnormality detection and longitudinal flux abnormality detection respectively.

59. wagon detectors according to claim 55, is characterized in that:

60. wagon detectors according to claim 56, is characterized in that:

61. wagon detectors according to claim 57, is characterized in that:

62. according to claim 53,54,57, the arbitrary described wagon detector of 59-61, it is characterized in that, this wagon detector also comprises infrared detection module, it is characterized in that:

Described wagon detector, generates the information of vehicles on parking stall after the vehicle disturbance terrestrial magnetic field magnetic anomaly signal on the parking stall having no signal and described GMI detection module to detect for the vehicle on the parking stall detected described infrared detection module carries out overall treatment.

63. wagon detectors according to claim 55, is characterized in that, this wagon detector also comprises infrared detection module, it is characterized in that:

64. wagon detectors according to claim 56, is characterized in that, this wagon detector also comprises infrared detection module, it is characterized in that:

65. wagon detectors according to claim 58, is characterized in that, this wagon detector also comprises infrared detection module, it is characterized in that:

66. wagon detectors according to claim 62, is characterized in that, described infrared detection module comprises: infrared transmitting circuit and infrared receiving circuit;

67. according to described wagon detector arbitrary in claim 63-64, and it is characterized in that, described infrared detection module comprises: infrared transmitting circuit and infrared receiving circuit;

68. wagon detectors according to claim 65, is characterized in that, described infrared detection module comprises: infrared transmitting circuit and infrared receiving circuit;

69. wagon detectors according to claim 66, is characterized in that:

Described infrared receiving circuit: also simultaneously for the coding number of recruiting unit's Time Continuous, the fundamental type of the level identification vehicle on measuring vehicle and ground; Or,

Described fixed frequency is the arbitrary fixed value in 30-60Khz.

70. wagon detectors according to claim 67, is characterized in that:

Described fixed frequency is the arbitrary fixed value in 30-60Khz.

71. wagon detectors according to claim 68, is characterized in that:

Described fixed frequency is the arbitrary fixed value in 30-60Khz.

72., according to described wagon detector arbitrary in claim 69-71, is characterized in that:

Described fixed value is 38Khz, 40Khz or 42Khz.

73. 1 kinds of systems obtaining the idle parking stall sum in parking lot, it, without the need to being connected the empty parking space quantity that also can accurately calculate in parking lot with the supervisory system in parking lot, comprises 1 entrance wagon detector, 1 outlet wagon detector and 1 aggregation node; It is characterized in that:

Described entrance wagon detector, is arranged on the entry position in parking lot, for counting entering vehicle;

Described outlet wagon detector, is arranged on the exit position in parking lot, for counting leaving vehicle;

Described aggregation node, communicate with above-mentioned wagon detector the count value obtaining and enter vehicle He leave vehicle, and in conjunction with current parking lot parking stall sum, entrance vehicle numerical value and leave vehicle numerical value and carry out the quantity that computing obtains idle parking stall, parking lot.

74., according to the system described in claim 73, is characterized in that:

Described entrance wagon detector, counts entering vehicle by using GMI magnetic anomaly sensor and infrared sensor;

Described outlet wagon detector, counts leaving vehicle by using GMI magnetic anomaly sensor and infrared sensor;

Computing is obtained the quantity of idle parking stall, parking lot by described aggregation node, is transferred to outside supervision and management center of parking, user terminal, managerial personnel's terminal or large data service center by the Internet, mobile Internet or other wireless communication technologys.

75., according to the system described in claim 74, is characterized in that, this system comprises further:

When described entrance wagon detector and outlet wagon detector are for judging vehicle count, determine that a vehicle is through information by magnetic anomaly sensor forward and inverse change pattern, and carry out auxiliary judgment in conjunction with infrared sensor, under the condition obtaining certain idle parking stall, time parking lot number, realize vacant parking stall statistics by the monitoring counting of entrance wagon detector and the monitoring counting of outlet wagon detector.