CN207458339U - A kind of infrared light curtain vehicle sensor - Google Patents
A kind of infrared light curtain vehicle sensor Download PDFInfo
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- CN207458339U CN207458339U CN201721386459.5U CN201721386459U CN207458339U CN 207458339 U CN207458339 U CN 207458339U CN 201721386459 U CN201721386459 U CN 201721386459U CN 207458339 U CN207458339 U CN 207458339U
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- light curtain
- infrared light
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Abstract
The utility model is related to a kind of infrared light curtain vehicle sensors, and including main sensor, auxiliary sensor and system microcontroller, main sensor includes one group of horizontal infrared light curtain sensor, can sense vehicle and drive into information and vehicle wheel base length information；Auxiliary sensor includes orthogonal two groups of infrared light curtain sensors, can measure the width for driving into vehicle.The utility model can be conveniently used for the parking navigation of parking lot vehicle, solve the problem of that nearly parking lot vehicle mounted guidance or cell phone map navigation accuracy are looked into or even can not used；It combines to obtain with visible LED array and consistent with driver's driving sight one-to-one is accurately positioned parking navigation；The error free walking navigation for entering or leaving parking lot can be provided with reference to visible LED for driver and occupant；Enter whether position rectifies with reference to voice, optical signal prompting vehicle parking, prevent from scratching.
Description
【Technical field】
The utility model is related to parking lot vehicle management field more particularly to a kind of indoor parkings of infrared vehicle sensor
The vehicle sensing detection device of field vehicle vehicle management, is specifically a kind of infrared light curtain vehicle sensor.
【Background technology】
Vehicle testing techniques are very universal, and mainstream technology is ground induction coil technology at present.Parking application indoors is upper,
The limitation of ground induction coil technology is can not to obtain the geometry information of vehicle, and mostly use is embedded into mode and installs, and installation is more
It please causes inconvenient for use, parking stall use state information for management system can not be especially provided and parking stall parks cars size
Information, it has not been convenient to realize that parking stall dynamically manages in real time, let alone one-to-one accurate parking navigation is provided for parking；Ground sense line
Technology application is enclosed when large parking lot, installation and debugging are difficult, obtain vehicle geometry information difficulty, can not be sought for driver
Vehicle is looked for provide navigation difficulty etc..
【Utility model content】
The utility model is to overcome above-mentioned the deficiencies in the prior art part, and it is an object of the present invention to provide a kind of infrared light curtain vehicle sense
Device is surveyed, which is based on infrared ray light curtain detection technology, and for parking garage, which can be used in parking lot discrepancy
Mouthful, driving path and the vehicle on parking stall sensing, can be conveniently used for parking navigation in parking lot, solve the problems, such as parking trouble,
Improve parking lot service efficiency；
The utility model is to reach above-mentioned purpose by the following technical programs：
A kind of infrared light curtain vehicle sensor, including：Main sensor, auxiliary sensor and system microcontroller, main sensor
Each there is independent microcontroller with auxiliary sensor, main sensor and auxiliary sensor are uniformly controlled management in system microcontroller
Under run work alone；
Main sensor includes one group of horizontal infrared light curtain sensor, the emission array of horizontal infrared light curtain sensor and reception
Array is located at track both sides respectively, and the light that emission array is sent can sense vehicle and drive into letter perpendicular to track longitudinal axis
Breath and vehicle wheel base length information；
Auxiliary sensor includes orthogonal two groups of infrared light curtain sensors, and one group in two groups of infrared light curtain sensors is red
Outer light curtain sensor is overlapped with track longitudinal centre line, and the light that this group of infrared light curtain sensor is sent is in the longitudinal direction of track
Heart line can measure the length for driving into vehicle, another group of infrared light curtain sensor and previous group infrared light curtain sensor central point
Into right-angled intersection, the width for driving into vehicle can be measured；The emission array of the infrared light curtain sensor of auxiliary sensor and reception battle array
Row are set to form of tubes.
The emission array of infrared light curtain sensor is infrared LED emission array, and receiving array is infrared receiving diode battle array
Row；
In main sensor, the infrared LED on infrared LED emission array to be equidistantly mounted to linear light curtain emission array,
Photodiode on infrared receiving diode array is mounted to receive linear array with identical spacing dimension；
In auxiliary sensor, the infrared LED on infrared LED emission array and photosensitive two pole on infrared receiving diode array
Pipe is to be equidistantly set to form of tubes.
In main sensor, the spacing of the spacing of the infrared LED of emission array and the photodiode of receiving array is 1~
3 centimetres；In auxiliary sensor, the spacing of adjacent infrared LED and photodiode is 1~3 centimetre.
The spacing of the infrared LED of emission array and the spacing of the photodiode of receiving array are 1 centimetre, 2 centimetres or 3
Centimetre；In auxiliary sensor, the spacing of adjacent infrared LED and photodiode is 1 centimetre, 2 centimetres or 3 centimetres.
The microcontroller of the microcontroller of main sensor and auxiliary sensor is respectively by serial between system microcontroller
Data telecommunication line connects.
The communication being connected with computer system is equipped on the microcontroller of the microcontroller of main sensor and auxiliary sensor
Interface.
Compared with prior art, the utility model has the advantages that：
The main sensor and auxiliary sensor of the utility model each have independent microcontroller, main sensor and auxiliary sensor
Work is run alone in the case where system microcontroller is uniformly controlled management；It the emission array of the horizontal infrared light curtain of main sensor and connects
It receives array and is located at track both sides respectively, the light that emission array is sent can sense vehicle and drive into perpendicular to track longitudinal axis
Information and vehicle wheel base length information；One group of infrared light curtain sensor and vehicle in two groups of infrared light curtain sensors of auxiliary sensor
Road longitudinal centre line overlaps, and the light that this group of infrared light curtain sensor is sent can be measured and sailed perpendicular to track longitudinal centre line
Enter the length of vehicle, another group of infrared light curtain sensor and previous group infrared light curtain sensor central point, can into right-angled intersection
The width of vehicle is driven into measurement；When vehicle drives into infrared light curtain vehicle sensor, vehicle tyre is successively blocked on main sensor
Photodiode arrangement, the quantity of the neighboring photosensitive diode being blocked just represents the width of tire rolling road surface, two
The group neighboring photosensitive diode center positional distance that is blocked is exactly vehicle wheelbase；After main sensor senses vehicle wheelbase data,
Data feedback is started by system microcontroller the length and width number of auxiliary sensor start feeling measuring car to system microcontroller
It is believed that breath.
The utility model ratio using ground induction coil it is more convenient, into parking lot vehicle can with along track longitudinal direction it is auxiliary
Sensor forms the relay-type vehicle sensing system from entrance to parking stall, is easily aided with visible LED to guide parking, will
Make indoor parking stall navigation routine definitely clear, realize one-to-one precision navigation service, solve conventional invention since positioning is calculated
Map is not required as carrier in the problem of reasons such as method, signal strength, signal stabilization cause positioning accuracy not high, whole process
It supports, user is made to be quickly found out parking stall, cost saved the time.
【Description of the drawings】
Fig. 1 is the system structure diagram of the utility model；
Fig. 2 is the main sensor operation principle of the utility model；
Fig. 3 is the sensor work period sequence diagram of the utility model.
【Specific embodiment】
The utility model is described further with reference to specific embodiment, but the scope of protection of the utility model is simultaneously
It is not limited only to this：
Such as Fig. 1 to Fig. 3, the technical solution of the utility model is as follows：
The infrared light curtain vehicle sensor of the utility model is by one group of horizontal infrared light curtain sensor and orthogonal two
Group infrared light curtain sensor composition, horizontal light curtain sensor is by being separately mounted to the infrared LED emission array of track both sides and red
Outer reception diode array composition, horizontal light curtain vehicle sensor are main sensor, orthogonal two groups of infrared light curtains sensing
Sensor supplemented by device；
The light that horizontal infrared light curtain sensor infrared LED emission array is sent is perpendicular to track longitudinal axis, for feeling
Measuring car drives into information and vehicle wheel base length information, and horizontal infrared light curtain sensor by being located at the infrared of track both sides respectively
LED array and photodiode arrangement composition, infrared LED are mounted to linear light curtain emission array (spacing with 1~3 centimetre of spacing
1 centimetre, 2 centimetres or 3 centimetres can be specifically set to), photodiode is mounted to receive linear array with identical spacing dimension, from vehicle
Travel direction, successively according to 1,2,3,, the order of N obtains the coordinate (sequence number) of infrared LED and photodiode elements,
In, N is positive integer；
Two groups of orthogonal infrared light curtain sensors are by infrared LED and photodiode to pipe and with 1~3 li of spacing
The meter ampere dress composition linear transceiver sensor array of infrared light curtain (spacing can specifically be set to 1 centimetre, 2 centimetres or 3 centimetres), wherein
One group of infrared light curtain sensor is perpendicular to track longitudinal centre line, another group of infrared light curtain sensor and previous group infrared light curtain sense
Device central point is surveyed to install into right-angled intersection；Two groups of orthogonal infrared light curtain sensors are the auxiliary sensor of vehicle sensor.
The infrared LED of auxiliary sensor and photodiode also according to 1,2,3,, the order of order encoder element coordinate (sequence number) of N；
The array of the infrared LED composition of main sensor is used using intermittent work mode, the array of photodiode composition
Sensing direct light mode works, respectively in the transmit cycle of infrared LED array and closing cycle detection photodiode arrangement number
According to；
Orthogonal two groups of auxiliary sensors use intermittent duty, and photodiode arrangement receives car body reflection
Infrared ray, with collection vehicle information；Auxiliary sensor enters after horizontally disposed infrared light curtain sensor senses information of vehicles
Work, vehicle are stopped after being driven out to sensor.
The main and auxiliary sensor of composition vehicle sensor is controlled respectively by respective microcontroller, and by system microcontroller
Control, adjust the sensing work period of main and auxiliary sensor.
It is located at that the main and auxiliary sensor work period in different tracks is mutual indepedent, the work period of main and auxiliary sensor is closed one
Play one sensor detection cycle of composition.The main and auxiliary sensor work period respectively accounts for three points of vehicle sensor detection work period
One of, and when information of vehicles is not detected in main sensor, auxiliary sensor is in halted state.
Vehicle sensor uses intermittent work mode, and the intermittent time is adjustable, each lane sensing with the detection cycle time
The detection work period of device is interleaved, prevents from generating interference when multilane from using between the sensor of adjacent lane.
The vehicle tyre of vehicle sensor is driven into according to coordinate 1,2,3,, the order of N successively blocks the photosensitive of main sensor
Diode, the quantity for the neighboring photosensitive diode being blocked just represent the width of tire rolling road surface, and automobile front and back wheel is total to
Two groups of photodiodes are blocked, the centre-to-centre spacing for the photodiode that two adjacent groups are blocked is exactly vehicle wheelbase；Main sensor sense
After measuring vehicle wheelbase data, wheelbase data feedback starts auxiliary sensor by system microcontroller and opens to system microcontroller
Dynamic other data messages of auxiliary sensor sensing vehicle, the data message include the length and width data message of vehicle.
Infrared vehicle sensor reads the signal of non-detection work period and detection work week in detection work period array
Phase signal.Detection working period signal is divided into as main and auxiliary sensor infrared signal (LED transmit cycles) and non-LED transmit cycles
Signal.The data that sensing data Main Basiss photodiode arrangement senses in transmit cycle, remaining signal is as background
Noise is used for the anti-interference calculating of sensing data signal；Sensor institute collection vehicle information is transmitted to system micro-control by data cable
Device processed is analyzed and processed and stored；Data communication is carried out using serial data communication mode, and is passed through data cable and be transmitted to
Position management system.
Embodiment
Hardware configuration is as shown in Figure 1, the infrared light curtain vehicle sensor of the present embodiment includes：Main and auxiliary sensor and each
Microcontroller and system microcontroller, system power supply.The microcontroller of main and auxiliary sensor respectively with system microcontroller
Between be connected with each other by serial data communication line, and leave the communication interface being connected with other computer systems, it is convenient and its
The connection of his equipment.
Main sensor forms emission array by infrared LED, forms receiving array by photodiode, and passes through main sensor
Microcontroller controlled；As shown in Figure 2.Auxiliary sensor is by infrared LED emission array, infrared receiving diode and auxiliary sensing
The microcontroller of device is formed, the infrared LED on infrared LED emission array and the photodiode on infrared receiving diode array
It being set to form of tubes, there are two auxiliary sensors, two infrared light curtain sensors that respectively vertical and horizontal are set, and therein one
Group infrared light curtain sensor is overlapped with track longitudinal centre line, and the light that this group of infrared light curtain sensor is sent is indulged perpendicular to track
To center line, the length for driving into vehicle can be measured, another group of infrared light curtain sensor in previous group infrared light curtain sensor
Heart point can measure the width for driving into vehicle into right-angled intersection.
Main and auxiliary sensor works under system microcontroller control, and work schedule is as shown in Figure 3.Wherein 2 He of period
Period 3 is the work period of the vehicle sensor on current lane, and auxiliary sensor is after main sensor senses and drives into vehicle
Start auxiliary sensor work, otherwise auxiliary sensor is in halted state.In the period 3, main and auxiliary sensor reads photodiode
Array signal, and record using the signal detected as background signal spare.Period Isosorbide-5-Nitrae is other track vehicle sensor works
Make the cycle, current lane vehicle sensor does not work.
Drive into the light of the infrared LED work period of the main sensor of vehicle tyre shield portions of vehicle sensor, main sense
Survey device foundation drives into vehicle tyre and blocks the number that main sensor successively blocks main sensor photodiode arrangement along travel direction
When amount and changing condition meet vehicle and drive into feature, i.e., by the photodiode arrangement sensing data and note of the main sensor read
After the background signal of record does calculus of differences, obtain tire and block the position of light curtain, quantity and continuity synthesis computing being blocked
Whether signal is that tire blocks light curtain signal, and then identifies whether to drive into sensor for vehicle.If being judged as, vehicle drives into, and starts
The car body geometry information of vehicle is driven into auxiliary sensor detection with measurement.
Main sensor detects that vehicle drives into sensor, and while open the work of auxiliary sensor, starts main sensor sense
Measuring car wheel base dimension.
The vehicle wheelbase Ax survey calculation methods for driving into vehicle sensor are as follows：
The length Lt that tire blocks infrared light curtain can be obtained by the photodiode quantity statistics that is blocked, if Lt=n × Δ,
Wherein n blocks photodiode quantity for tire, and Δ is photodiode clipping room away from (preceding spacing of having addressed is 1~3 centimetre).
Two groups of photodiodes that main sensor senses (being more than vehicle minimum wheelbase) at regular intervals sense tire occlusion state
When, start vehicle wheelbase survey calculation, if two groups of photodiode coordinates being blocked are respectively (2,2+n) and (Na, Na+n),
Then vehicle wheelbase Ax is
Ax=(Na-2) × Δ/100 (rice) (1)
The photodiode coordinate that second group (driving into vehicle sensor vehicle tyre afterwards) is blocked is (2,2+n), and head is sat
Mark can take the value more than 1, take 2 here to confirm that vehicle rear axle tire drives into sensor；It senses rear axle and drives into sensor
Afterwards, it is (Na, Na+n) to detect first group of photodiode coordinate being blocked, and Na first drives into sensor vehicle tyre and blocks
The coordinate of the previous photodiode that is not blocked of first group of n photodiode.
The Vehicle length La calculation formula for driving into sensor are
La=N1 × Δ/100 (rice) (2)
N1 is the photodiode quantity that length over ends of body sensor (vehicle reflected signal) senses signal.
The vehicle width Lw calculation formula for driving into sensor are
Lw=Nw × Δ/100 (rice) (3)
Nw is the photodiode quantity that width of the carbody sensor (vehicle reflected signal) senses signal.
The information of vehicles that vehicle sensor is collected is transmitted to system microcontroller by data cable and carries out at analysis
Reason and storage；Data communication is carried out using serial data communication mode, and is passed through data cable and be transmitted to upper management system.
With above-mentioned vehicle sensor operation principle, infrared light curtain vehicle sensor can be used in Entrance, parking
The various positions such as position and parking lot vehicle running path.
Above-mentioned vehicle sensor, which can also sense, needs the appropriate arranging density for increasing infrared light curtain and direction, to adapt to not
It is needed with sensing.For example, when being applied to parking stall, if linear sensor array is changed to matrix, vehicle can be not only sensed
Geometry information, can also sense whether vehicle parking is rectified, prevent from stopping it is irregular parking stall is caused to waste, Yi Jike
Loss caused by vehicle caused by energy scratches etc..
The beneficial effects of the utility model are：More more convenient than using ground induction coil, the vehicle into parking lot can be with
The relay-type vehicle sensing system from entrance to parking stall is formed with the auxiliary sensor along track longitudinal direction, is easily aided with visible ray
LED stops to guide, and indoor parking stall navigation routine will be made definitely clear, realizes one-to-one precision navigation service, solves to pass
System utility model due to location algorithm, signal strength, signal stabilization etc. cause positioning accuracy not high the problem of, entire mistake
Journey is not required map to be supported as carrier, and user is made to be quickly found out parking stall, cost saved the time.
Claims (6)
1. a kind of infrared light curtain vehicle sensor, which is characterized in that including：Main sensor, auxiliary sensor and system microcontroller,
Main sensor and auxiliary sensor each have independent microcontroller, main sensor and auxiliary sensor in system microcontroller unification
Work is run alone under control management；
Main sensor includes one group of horizontal infrared light curtain sensor, the emission array and receiving array of horizontal infrared light curtain sensor
Be located at track both sides respectively, the light that emission array is sent perpendicular to track longitudinal axis, can sense vehicle drive into information with
Vehicle wheel base length information；
Auxiliary sensor includes orthogonal two groups of infrared light curtain sensors, one group of infrared light in two groups of infrared light curtain sensors
Curtain sensor is overlapped with track longitudinal centre line, and the light that this group of infrared light curtain sensor is sent is perpendicular to track longitudinal center
Line, can measure the length for driving into vehicle, another group of infrared light curtain sensor and previous group infrared light curtain sensor central point into
Right-angled intersection can measure the width for driving into vehicle；The emission array and receiving array of the infrared light curtain sensor of auxiliary sensor
It is set to form of tubes.
2. infrared light curtain vehicle sensor according to claim 1, which is characterized in that the transmitting battle array of infrared light curtain sensor
Infrared LED emission array is classified as, receiving array is infrared receiving diode array；
In main sensor, the infrared LED on infrared LED emission array is infrared to be equidistantly mounted to linear light curtain emission array
Photodiode on reception diode array is mounted to receive linear array with identical spacing dimension；
In auxiliary sensor, the infrared LED on infrared LED emission array is set with the photodiode on infrared receiving diode array
For to form of tubes.
3. infrared light curtain vehicle sensor according to claim 2, which is characterized in that in main sensor, emission array
The spacing of infrared LED and the spacing of the photodiode of receiving array are 1~3 centimetre；In auxiliary sensor, adjacent is infrared
The spacing of LED and photodiode is 1~3 centimetre.
4. infrared light curtain vehicle sensor according to claim 3, which is characterized in that between the infrared LED of emission array
Spacing away from the photodiode with receiving array is 1 centimetre, 2 centimetres or 3 centimetres；In auxiliary sensor, adjacent infrared LED
Spacing with photodiode is 1 centimetre, 2 centimetres or 3 centimetres.
5. the infrared light curtain vehicle sensor according to claim 1-4 any one, which is characterized in that main sensor it is micro-
The microcontroller of controller and auxiliary sensor is connected between system microcontroller by serial data communication line respectively.
6. the infrared light curtain vehicle sensor according to claim 1-4 any one, which is characterized in that main sensor it is micro-
The communication interface being connected with computer system is equipped on the microcontroller of controller and auxiliary sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721386459.5U CN207458339U (en) | 2017-10-25 | 2017-10-25 | A kind of infrared light curtain vehicle sensor |
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| CN201721386459.5U CN207458339U (en) | 2017-10-25 | 2017-10-25 | A kind of infrared light curtain vehicle sensor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107610480A (en) * | 2017-10-25 | 2018-01-19 | 西安建筑科技大学 | A kind of infrared light curtain vehicle sensor and method |
| CN109059778A (en) * | 2018-08-29 | 2018-12-21 | 北京新能源汽车股份有限公司 | Measuring device |
| CN111402624A (en) * | 2020-03-12 | 2020-07-10 | 大连大学 | Sensor perception network parking space monitoring equipment of intelligent parking space searching |
| CN112197788A (en) * | 2020-12-07 | 2021-01-08 | 天津美腾科技股份有限公司 | Vehicle traveling state detection method and device |
| CN113140123A (en) * | 2021-03-26 | 2021-07-20 | 深圳市博西尼电子有限公司 | Indoor parking lot navigation method, system, terminal and medium with parking space judgment function |
| CN113140124A (en) * | 2021-03-26 | 2021-07-20 | 深圳市博西尼电子有限公司 | Navigation method, system, terminal and medium for vehicle leaving of single-lane parking lot |
| CN113140122A (en) * | 2021-03-26 | 2021-07-20 | 深圳市博西尼电子有限公司 | Parking lot accurate navigation method, system, terminal and storage medium |
| CN113178093A (en) * | 2021-03-26 | 2021-07-27 | 深圳市博西尼电子有限公司 | Indoor parking lot navigation method, system, terminal and storage medium |
-
2017
- 2017-10-25 CN CN201721386459.5U patent/CN207458339U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107610480A (en) * | 2017-10-25 | 2018-01-19 | 西安建筑科技大学 | A kind of infrared light curtain vehicle sensor and method |
| CN109059778A (en) * | 2018-08-29 | 2018-12-21 | 北京新能源汽车股份有限公司 | Measuring device |
| CN109059778B (en) * | 2018-08-29 | 2022-01-11 | 北京新能源汽车股份有限公司 | Measuring device |
| CN111402624A (en) * | 2020-03-12 | 2020-07-10 | 大连大学 | Sensor perception network parking space monitoring equipment of intelligent parking space searching |
| CN112197788A (en) * | 2020-12-07 | 2021-01-08 | 天津美腾科技股份有限公司 | Vehicle traveling state detection method and device |
| CN112197788B (en) * | 2020-12-07 | 2021-03-12 | 天津美腾科技股份有限公司 | Vehicle traveling state detection method and device |
| CN113140123A (en) * | 2021-03-26 | 2021-07-20 | 深圳市博西尼电子有限公司 | Indoor parking lot navigation method, system, terminal and medium with parking space judgment function |
| CN113140124A (en) * | 2021-03-26 | 2021-07-20 | 深圳市博西尼电子有限公司 | Navigation method, system, terminal and medium for vehicle leaving of single-lane parking lot |
| CN113140122A (en) * | 2021-03-26 | 2021-07-20 | 深圳市博西尼电子有限公司 | Parking lot accurate navigation method, system, terminal and storage medium |
| CN113178093A (en) * | 2021-03-26 | 2021-07-27 | 深圳市博西尼电子有限公司 | Indoor parking lot navigation method, system, terminal and storage medium |
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