CN109859494A - A kind of vehicle detecting system for road safety, method and device - Google Patents

A kind of vehicle detecting system for road safety, method and device Download PDF

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Publication number
CN109859494A
CN109859494A CN201910078711.3A CN201910078711A CN109859494A CN 109859494 A CN109859494 A CN 109859494A CN 201910078711 A CN201910078711 A CN 201910078711A CN 109859494 A CN109859494 A CN 109859494A
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China
Prior art keywords
column
target vehicle
vehicle
crossbeam
rangefinder
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CN201910078711.3A
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Chinese (zh)
Inventor
邹德忠
刘涛
徐炎
李皓
祁媛
叶星明
陈磊
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China Gezhouba Dam Group Highway Operation Co Ltd
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China Gezhouba Dam Group Highway Operation Co Ltd
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Priority to CN201910078711.3A priority Critical patent/CN109859494A/en
Publication of CN109859494A publication Critical patent/CN109859494A/en
Pending legal-status Critical Current

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Abstract

The present invention discloses a kind of vehicle detecting system for road safety, belongs to traffic safety technical field, comprising: the first rangefinder is arranged at the centre of crossbeam;Second rangefinder is arranged on the first column;Third rangefinder is arranged on the second column;Camera is fixed on crossbeam;Wireless Transmitter is fixed on the crossbeam;Display is fixed on crossbeam, and the data for being transmitted to display to Wireless Transmitter are shown;Light compensating lamp is fixed on crossbeam;The present invention is by being provided in the vehicle detecting system of road safety, so that by when vehicle to be detected passes through this system, the range data of the target vehicle as measured by the first rangefinder, the second rangefinder, third rangefinder is transmitted to display through Wireless Transmitter and is shown, with whether ultra-wide or superelevation identify to target vehicle, there is the technical characterstic that structure is simple, applicability is wide.

Description

A kind of vehicle detecting system for road safety, method and device
Technical field
The present invention relates to traffic safety technology field more particularly to a kind of vehicle detecting systems for road safety, side Method and device.
Background technique
In recent years, various regions, the departments concerned carry out relevant laws and regulations of the state comprehensively, deeply promote vehicle overload super Control is carried, and obtains positive effect.
But vehicle overload transport phenomena remains incessant after repeated prohibition, if the width of vehicle is more than vehicle safety width, the height of vehicle More than vehicle safety height etc., the appearance of such situation causes great hidden danger to life and property safety of people, causes Some major accidents occur.
Summary of the invention
The present invention provides a kind of vehicle detecting system for road safety, method and device method and device, to solve Above-mentioned technical problem certainly in the prior art.
In a first aspect, the embodiment of the invention provides a kind of vehicle detecting system for road safety, the system packet Include: the first rangefinder, first rangefinder are arranged at the centre of crossbeam;Second rangefinder, second rangefinder It is arranged on the first column;Third rangefinder, the third rangefinder are arranged on the second column;Camera, the camera It is fixed on the crossbeam, is used for photographic subjects vehicle;Wireless Transmitter, the Wireless Transmitter are fixed on the crossbeam; Display, the display are fixed on the crossbeam, so that by first rangefinder, second rangefinder, described The range data of the target vehicle measured by three rangefinders is transmitted to the display through the Wireless Transmitter and is shown Show;Light compensating lamp, the light compensating lamp are fixed on the crossbeam, for carrying out light filling in shooting process to the camera;Its In, first column and second column respectively correspond the two sides that road is arranged in, and first column and described Two columns are parallel to each other, and one end of the crossbeam is fixed on first column, and the other end of the crossbeam is fixed on described On second column, and the crossbeam is mutually perpendicular to first column, second column respectively.
Optionally, ladder is provided on first column;And/or ladder is provided on second column.
Optionally, further includes: the first lightning rod, first lightning rod are fixed on first column and the crossbeam At connecting portion;And/or second lightning rod, second lightning rod are fixed on the connection of second column and the crossbeam At position.
Second aspect, the present invention also provides a kind of vehicle checking method for road safety, the method is applied to Above-mentioned, described system, wherein when target vehicle is by the first detection band, which comprises obtain the target vehicle Center chassis point a1 in the projected position point a2 that takes of the first detection, wherein the first detection band be located at it is described Between first column and second column, and be respectively perpendicular to first column, second column, and with the crossbeam Parallel linear type detects band, and the length of the first detection band is L;Obtain second rangefinder and the target vehicle First side linear distance p1;Obtain the linear distance of the second side of the third rangefinder and the target vehicle P2, wherein the first side and the second side are opposed two sides in the target vehicle two sides;According to described in L, the p1 and p2 calculates the width d of the target vehicle;Obtain the crossbeam central part site b and the target carriage Top cap central point a3 between linear distance p3, wherein described a1, a2, a3 are on same straight line;Obtain the crossbeam Central part site b and it is described first detection band central part site a4 between linear distance p4;As the a2 and the a4 When overlapping, then the height h of the target vehicle is calculated according to formula h=p4-p3;By the width d and height h and in advance If secure threshold be compared;And comparison result is transmitted to display and is shown.
Optionally, the preset secure threshold includes: vehicle safety width threshold value D and vehicle safety height threshold H;Institute State that be compared the width d and the height h with preset secure threshold include: by the width d and preset vehicle Safe width threshold value D is compared, if the width d is greater than the vehicle safety width threshold value D, the comparison result includes institute The width for stating target vehicle is more than vehicle safety width;The height h and preset vehicle safety height threshold H are compared Compared with if the width h is greater than the vehicle safety height threshold H, the comparison result includes the height of the target vehicle More than vehicle safety height.
Optionally, when the a2 and the a4 are not overlapped, then the central part site b and the a2 of the crossbeam are obtained Between linear distance p5;According to formulaCalculate the distance between the a2 and the a4 p24; According to formulaCalculate the height h of the target vehicle.
The third aspect, the present invention also provides a kind of vehicle detection apparatus for road safety, described device is applied to System described above, wherein described device includes: that projected position point a2 obtains module, is configured as obtaining the target carriage Center chassis point a1 in the projected position point a2 that takes of the first detection, wherein the first detection band is to be located at institute State between the first column and second column, and be respectively perpendicular to first column, second column, and with the cross The parallel linear type of beam detects band, and the length of the first detection band is L;Linear distance p1 obtains module, is configured as obtaining Take the linear distance p1 of the first side of second rangefinder and the target vehicle;Linear distance p2 obtains module, is matched It is set to the linear distance p2 for obtaining the second side of second rangefinder and the target vehicle, wherein the first side It is opposed two sides in the target vehicle two sides with the second side;Width d computing module is configured as according to institute State the width d that L, the p1 and the p2 calculate the target vehicle;Linear distance p3 obtains module, is configured as described in acquisition Linear distance p3 between the central part site b of crossbeam and the top cap central point a3 of the target vehicle, wherein the a1, a2, A3 is on same straight line;Linear distance p4 obtains module, is configured as obtaining the central part site b of the crossbeam and described the Linear distance p4 between the central part site a4 of one test point;Height h computing module is configured as the a2 and a4 When overlapping, then the height h of the target vehicle is calculated according to formula h=p4-p3;Comparison module is configured as the width The degree d and height h is compared with preset secure threshold;Display module is configured as and is transmitted to comparison result aobvious Show that device is shown.
Optionally, the preset secure threshold includes: vehicle safety width threshold value D and vehicle safety height threshold H;Institute Stating comparison module includes: the first submodule, is configured as comparing the width d and preset vehicle safety width threshold value D Compared with if the width d is greater than the vehicle safety width threshold value D, the comparison result includes that the width of the target vehicle is super Cross vehicle safety width;Second submodule is configured as comparing the height h and preset vehicle safety height threshold H Compared with if the width h is greater than the vehicle safety height threshold H, the comparison result includes the height of the target vehicle More than vehicle safety height.
Fourth aspect, the present invention also provides a kind of vehicle detection apparatus for road safety, including memory, processing On a memory and the computer program that can run on a processor, when processor execution described program, is realized for device and storage Following steps: the projected position point a2 that the center chassis point a1 of the target vehicle takes in first detection is obtained, wherein It is described first detection band be between first column and second column, and be respectively perpendicular to first column, Second column, and the linear type parallel with the crossbeam detects band, the length of the first detection band is L;Obtain institute State the linear distance p1 of the first side of the second rangefinder and the target vehicle;Obtain second rangefinder and the target The linear distance p2 of the second side of vehicle, wherein the first side and the second side are the target vehicle two sides Opposed two sides;The width d of the target vehicle is calculated according to the L, the p1 and the p2;Obtain the crossbeam Central part site b and the target vehicle top cap central point a3 between linear distance p3, wherein described a1, a2, a3 exist On same straight line;It obtains straight between the central part site b of the crossbeam and the central part site a4 of first test point Linear distance p4;When the a2 and the a4 overlap, then the height h of the target vehicle is calculated according to formula h=p4-p3; The width d and the height h are compared with preset secure threshold;And comparison result is transmitted to display and is shown Show.
5th aspect, the present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, should The center chassis point a1 for obtaining the target vehicle is performed the steps of when program is executed by processor in first detection The projected position point a2 taken, wherein it is described first detection band be between first column and second column, and It is respectively perpendicular to first column, second column, and the linear type parallel with the crossbeam detects band, described first The length for detecting band is L;Obtain the linear distance p1 of the first side of second rangefinder and the target vehicle;Obtain institute State the linear distance p2 of the second side of the second rangefinder and the target vehicle, wherein the first side and described second Side is opposed two sides in the target vehicle two sides;The target carriage is calculated according to the L, the p1 and the p2 Width d;Obtain the linear distance between the central part site b of the crossbeam and the top cap central point a3 of the target vehicle P3, wherein described a1, a2, a3 are on same straight line;Obtain the central part site b and first test point of the crossbeam Central part site a4 between linear distance p4;When the a2 and the a4 overlap, then according to formula h=p4-p3 meter Calculate the height h of the target vehicle;The width d and the height h are compared with preset secure threshold;And it will compare As a result display is transmitted to be shown.
The one or more technical solutions provided in the embodiment of the present invention, have at least the following technical effects or advantages:
For the present invention by the way that the first rangefinder to be arranged at the centre of crossbeam, the setting of the second rangefinder is vertical first Column, third rangefinder are arranged on the second column, and camera is fixed on the crossbeam for photographic subjects vehicle, wireless transmission Device is fixed on crossbeam, and display is fixed on crossbeam, and light compensating lamp, which is fixed on crossbeam, to be used for camera in shooting process Carry out light filling;And first column and second column respectively correspond the two sides that road is arranged in, and described first is vertical Column and second column are parallel to each other, and one end of the crossbeam is fixed on first column, the other end of the crossbeam It is fixed on second column, and the crossbeam is mutually perpendicular to first column, second column respectively, with this shape At the vehicle detecting system provided by the present invention for road safety, so that by when vehicle to be detected passes through this system, The range data of the target vehicle as measured by the first rangefinder, the second rangefinder, third rangefinder is transmitted through Wireless Transmitter Shown that there is the technical characterstic that structure is simple, applicability is wide to display.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for this For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others Attached drawing.
Fig. 1 is system structure diagram in the embodiment of the present application;
Fig. 2 is the structural schematic diagram in the embodiment of the present application when vehicle to be measured is immediately below the first rangefinder;
Structural representation when Fig. 3 is the left side in the embodiment of the present application when vehicle to be measured is immediately below the first rangefinder Figure;
Fig. 4 is method flow schematic diagram in the embodiment of the present application;
Fig. 5 is another apparatus structure schematic diagram in the embodiment of the present application;
Fig. 6 is another apparatus structure schematic diagram in the embodiment of the present application.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first ", " second ", " third ", " in above-mentioned attached drawing The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce The other step or units of product or equipment inherently.
Term "and/or" in description and claims of this specification and above-mentioned attached drawing, only a kind of description is closed Join the incidence relation of object, indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A is deposited simultaneously In A and B, these three situations of individualism B.In addition, character "/" herein, typicallying represent forward-backward correlation object is a kind of "or" Relationship.
Embodiment one
Referring to Fig. 1, the embodiment of the present invention one provides a kind of vehicle detecting system for road safety, the system It include: the first rangefinder 101, the second rangefinder 102, third rangefinder 103, crossbeam 104, the first column 105, the second column 106, camera 107, Wireless Transmitter 108, display 109, light compensating lamp 110, lightning rod 111, ladder 112.
Wherein, first rangefinder 101 is arranged at the centre of crossbeam 104;Second rangefinder 102 is arranged On the first column 105;The third rangefinder 103 is arranged on the second column 106;The camera 107 is fixed on described On crossbeam 104;The Wireless Transmitter 108 is fixed on the crossbeam 104;The display 109 is fixed on the crossbeam On 104;The light compensating lamp 110 is fixed on the crossbeam.And first column 105 and second column 106 are right respectively The two sides of road should be set, and first column 105 and second column 106 are parallel to each other, one end of the crossbeam 104 It is fixed on first column 105, the other end of the crossbeam 104 is fixed on second column 106, and the crossbeam 104 are mutually perpendicular to first column 105, second column 106 respectively.
Specifically, the camera 107 is used to carry out implementation shooting to the vehicle to be detected on road, to capture vehicle Pictures or the image information such as vehicle model information, license board information, and picture or image information are sent to by Wireless Transmitter 108 Display 109 carries out real-time display.Light compensating lamp 110 is for when to the camera 107, optical fiber is bad in shooting process Carry out light filling, such as night or rainy weather.
During actual job, first rangefinder 101, second rangefinder 102, the third rangefinder 103 Laser ranging can be carried out to the vehicle to be detected on road, be obtained in real time with respectively to be checked on the first rangefinder 101 and road Distance, acquisition between vehicle to be detected between measuring car on distance, the second rangefinder 102 of acquisition and road Distance between vehicle to be detected on third rangefinder 103 and road.It should be noted that in the embodiment of the present invention In, the second rangefinder 102 and third rangefinder 103 are identical as the vertical range of road ground, that is, 102 He of the second rangefinder Third rangefinder 103 relative to ground on sustained height, with ensure by the second rangefinder 102 and third rangefinder 103 to The laser beam of vehicle emissions to be detected is on sustained height, to improve measurement accuracy.
In addition, in embodiments of the present invention the first rangefinder 101 can be connected by screw to or be bolted it is fixed It is arranged on crossbeam 104, second rangefinder 102, the third rangefinder 103 can also be connected by screw to or bolt Connection respectively corresponds fixed setting on the first column 105, the second column 106.But as another implementation, The first rangefinder 101 can also be connected by pulley in the embodiment of the present invention or the setting of sliding rail connection sliding is in crossbeam 104 On, second rangefinder 102, the third rangefinder 103 can also be connected by pulley or sliding rail connection respectively corresponds Fixed setting is on the first column 105, the second column 106.Allowing for the first rangefinder 101 in this way can be relative to crossbeam 104 It is slided, second rangefinder 102, the third rangefinder 103 can be respectively relative to the first column 105, the second column 106 are slided.Because during actual job, the orientation that vehicle to be detected travels on road be it is continually changing, Namely vehicle to be detected is when driving to the lower section of crossbeam 104, it may be possible to just in the underface of crossbeam 104, it is also possible to It is to keep left at position in the lower section of crossbeam 104, it is also possible to be to keep right at position in the lower section of crossbeam 104, therefore by by The setting of one rangefinder 101 sliding is on crossbeam 104, so that the first rangefinder 101 can be according to vehicle to be detected on laterally 104 True bearing moved.It is identical, due to the vehicle size of vehicle to be detected, height be also it is diversified, work as detection When the height of vehicle is too low, it is possible to when detecting vehicle by the first column 105 and the second column 106, by the second rangefinder 102 and the laser beam that is emitted of third rangefinder 103 directly pass through above detection vehicle, and can not for detection vehicle into Row laser ranging, therefore the setting by the way that the second rangefinder 102, third rangefinder 103 to be respectively corresponded to sliding is in the second column 105 and third column 106 on so that vehicle to be detected pass through the first column 105 or the second column 106 when, being capable of basis The actual height for detecting vehicle slides the second rangefinder 102 and third rangefinder 103, and then improves the feasibility of measurement.
Further, in embodiments of the present invention, further includes: the first lightning rod 111a and the second lightning rod 111b, it is described First lightning rod 111a is fixed at the connecting portion of first column 105 and the crossbeam 104, second lightning rod 111b is fixed at the connecting portion of second column 106 and the crossbeam 104.
Further, in embodiments of the present invention, it is also set respectively on first column 105 and second column 106 It is equipped with ladder 112, is climbed for operating personnel.Specifically, can be arranged on the first column 105 and/or the second column 106 Gu snib is provided with buckle on the ladder 112, consolidated with realizing by ladder 112 is dismountable by buckling mutually to be clamped with snib Due on the first column 105 and/or the second column 106, can reach ladder 112 can at any time detachable maintaining, replacement technology effect Fruit.Certainly, in order to improve connectivity robustness, in embodiments of the present invention ladder 112 also can be directly used screw connection or The mode that welding etc. is fixedly connected is fixed on the first column 105 and/or the second column 106, can reach raising operation safety The technical effect of property.It is noted that for the connection side of ladder 112 and the first column 105 and/or the second column 106 Formula, the embodiment of the present invention and without limitation, as long as can be realized ladder 112 may be provided at the first column 105 and/or the second column Connection type on 106 is then suitable for the present invention.
Further, in embodiments of the present invention, further includes: charger, the charger respectively with the first rangefinder 101, the second rangefinder 102, third rangefinder 103, camera 107, Wireless Transmitter 108, display 109 etc. are attached, To the first rangefinder 101, the second rangefinder 102, third rangefinder 103, camera 107, Wireless Transmitter 108, display 109 carry out implementation power supply.
Further, in embodiments of the present invention, further includes: alarm, the alarm are fixed on crossbeam, and with institute State display connection.For carrying out prompt alarm to ultra-wide shown on display, Overheight Vehicles.The alarm can be One of combined aural and visual alarm, LED display lamp or buzzer.It is noted that the present invention is real for the type of alarm Example and without limitation is applied, as long as can be realized the alarm of warning function, is suitable for the present invention, also in guarantor of the invention Within the scope of shield.
Further, in embodiments of the present invention, it in order to improve the stability of the first column 105 and the second column 106, keeps away Exempt from the first column 105 and when the second column 106 is directly fixed on road ground due to the first column 105 and the second column 106 with The contact area of road ground is small, easily run-off the straight or skews, and then causes to influence measurement accuracy, the embodiment of the present invention Further include: the first support 113 and the second support 114;Wherein, the first support 113 and the second support 114 are symmetrically fixed on road Two sides, and first column 105 is fixed on the first support 113, and second column 106 is fixed on the second support 114 On, reinforce the fastness of the first column 105 and the second column 106 by the first support 113 and the second support 114 with this, improves Measurement accuracy.
Finally, it should be noted that in embodiments of the present invention, the number of display 109 is 2, Wireless Transmitter 108 Number be also 2.And the essence that 2 display 109 and 2 Wireless Transmitters 108 pile respectively is at the both ends of crossbeam 104, And individually work, it being avoided with this when some display 109 breaks down, another display may continue to work, To guarantee to detect operation working properly, with the high technical characterstic of security performance.
The one or more technical solutions provided in the embodiment of the present invention, have at least the following technical effects or advantages:
For the present invention by the way that the first rangefinder to be arranged at the centre of crossbeam, the setting of the second rangefinder is vertical first Column, third rangefinder are arranged on the second column, and camera is fixed on the crossbeam for photographic subjects vehicle, wireless transmission Device is fixed on crossbeam, and display is fixed on crossbeam, and light compensating lamp, which is fixed on crossbeam, to be used for camera in shooting process Carry out light filling;And first column and second column respectively correspond the two sides that road is arranged in, and described first is vertical Column and second column are parallel to each other, and one end of the crossbeam is fixed on first column, the other end of the crossbeam It is fixed on second column, and the crossbeam is mutually perpendicular to first column, second column respectively, with this shape At the vehicle detecting system provided by the present invention for road safety, so that by when vehicle to be detected passes through this system, The range data of the target vehicle as measured by the first rangefinder, the second rangefinder, third rangefinder is transmitted through Wireless Transmitter Shown that there is the technical characterstic that structure is simple, applicability is wide to display.
Embodiment two
The embodiment of the present invention one provides a kind of method of vehicle detection for road safety, and the method is applied to implement System described in example one please refers to Fig. 2-4, when target vehicle is by the first detection band 201, which comprises
Step S301;Obtain the projected position point that the center chassis point a1 of the target vehicle takes in first detection A2, wherein the first detection band is and to be respectively perpendicular to described the between first column and second column One column, second column, and the linear type parallel with the crossbeam detects band, the length of the first detection band is L;
Specifically, due to target vehicle, its practical car body relative to ground all has certain altitude, in step In S301, the projected position point a2 that the center chassis point a1 of the target vehicle takes in first detection is obtained first, with Determine real coordinate position point a2 of the car body relative to actual ground of target vehicle.
Step S302;Obtain the linear distance p1 of the first side of second rangefinder and the target vehicle;
Step S303;The linear distance p2 of the second side of the third rangefinder and the target vehicle is obtained, In, the first side and the second side are opposed two sides in the target vehicle two sides;
Step S304;The width d of the target vehicle is calculated according to the L, the p1 and the p2;
Wherein, when target vehicle is by the first detection band 201, since the second rangefinder and third rangefinder are in same height On degree, the linear distance p1 of the first side of second rangefinder and the target vehicle is first obtained at this time, then obtains institute State the linear distance p2 of the second side of third rangefinder and the target vehicle, and the first side and the second side It is opposed two sides in the target vehicle two sides, is allowed in this way by described in the L, the p1 and the p2 calculating The width d of target vehicle.That is, calculating the width d=L-p1-p2 of the target vehicle.
Accordingly, the width d can be compared with preset secure threshold, so secure threshold may include vehicle peace Full duration threshold value D.Specifically: the width d is compared with preset vehicle safety width threshold value D, if the width d Greater than the vehicle safety width threshold value D, then comparison result is transmitted to display and shown.It is to be understood that vehicle is pacified Full duration threshold value D is maximum allowable when being vehicle defined in traffic safety by charge crossing or gate etc. Vehicle width, and obviously then easily there are vehicle crash receipts when the developed width d of vehicle is greater than vehicle safety width threshold value D Take the safety accident of crossing or gate, therefore ought show that the width d is greater than the vehicle safety width threshold over the display Value D, then it represents that the vehicle can not safety front charge crossing or gate.
Further, to achieve the purpose that warning alert, peace can also be passed through according to the comparison result by controller Wireless Transmitter on crossbeam sends alarm command to the alarm being mounted on crossbeam, such as when alarm is buzzer Alarm whistle is controlled, either control alarm red colored lamp is always on or flashing lamp when alarm is LED display lamp.With this reality The vehicle width for now treating measuring car carries out safety monitoring, informs and remind to play the role of safety precaution.
Step S305;It obtains between the central part site b of the crossbeam and the top cap central point a3 of the target vehicle Linear distance p3, wherein described a1, a2, a3 are on same straight line;
Wherein, why determine crossbeam centre be used as point b, be due to vehicle to be measured generally in road driving when There are three kinds of orientation: the left side, centre or the right, regardless of the first rangefinder is fixedly connected or is slidably connected at point b, For the target vehicle laser beam that the first rangefinder emits at point b at the left side, or when for target vehicle on the right The laser beam that one rangefinder emits from point b, is all that deviation range is the smallest, when target vehicle in the road between when, at this time The laser beam that one rangefinder emits from point b is not necessarily to deviation, simultaneously as a1, a2, a3 are allowed on same straight line Measurement distance on vertical direction remains linear distance, so far by the central part site b of the selection crossbeam, and Described a1, a2, a3 are arranged on same straight line, both sides innovative design combines, the standard of the measurement greatly improved True property.
Step S306;It obtains between the central part site b of the crossbeam and the central part site a4 of the first detection band Linear distance p4;
Step S307;When the a2 and the a4 overlap, then the target vehicle is calculated according to formula h=p4-p3 Height h;
Step S308;The width d and the height h are compared with preset secure threshold;
Step S309;And comparison result is transmitted to display and is shown.
Specifically, when vehicle is by the first detection band as stated above, there are two kinds of situations:
Situation one: when the a2 and the a4 overlap, then the target vehicle is calculated according to formula h=p4-p3 Height h.Because a2 and a4 is overlapped namely vehicle just just issuing in the first rangefinder, formula h=p4-p3 can be straight at this time Meet the height h for calculating the target vehicle.
Situation two: when the a2 and the a4 are not overlapped, namely vehicle detects band first at this time left or the right side Side, then obtain the linear distance p5 between the central part site b of the crossbeam and the a2;According to formulaCalculate the distance between the a2 and the a4 p24;According to formulaCalculate the height h of the target vehicle.
Regardless of be situation one or situation two, after calculating the height h of target vehicle, then can by the height h with Preset secure threshold is compared, so secure threshold may include vehicle safety height threshold H.Specifically: by the height Degree h is compared with preset vehicle safety height threshold H, if the height h is greater than the vehicle safety height threshold H, Comparison result is transmitted to display to show.It is to be understood that vehicle safety height threshold H is in traffic safety Defined by vehicle by maximum allowable vehicle width when charge crossing or gate etc., and obviously when the practical height of vehicle When spending h greater than vehicle safety height threshold H, then easily there is the safety accident of vehicle crash charge crossing or gate, therefore When showing that the height h is greater than the vehicle safety height threshold H over the display, then it represents that the vehicle can not be before safety Side charge crossing or gate.
Further, to achieve the purpose that warning alert, peace can also be passed through according to the comparison result by controller Wireless Transmitter on crossbeam sends alarm command to the alarm being mounted on crossbeam, such as when alarm is buzzer Alarm whistle is controlled, either control alarm red colored lamp is always on or flashing lamp when alarm is LED display lamp.With this reality The vehicle width for now treating measuring car carries out safety monitoring, informs and remind to play the role of safety precaution.
Need especially to say, in embodiments of the present invention, in order to reach in time informing, transmission in time, in time avoid endangering The technical effect of danger, after getting comparison result by controller in the embodiment of the present invention two (such as the width of the target vehicle Degree is more than the comparison result of vehicle safety width and the height of the target vehicle is more than the comparison knot of vehicle safety height Fruit), the handheld terminal (such as mobile phone) or remote terminal that nearest operator can be transmitted to by network transmission module are (as charged Stand the computer of operating room), it, can not even if being because if staff is not if checking display or alarm at the scene Get the dangerous information of ultra-wide vehicle or Overheight Vehicles, therefore in order to enable long-range (such as the work of charge station's operating room Make personnel, the staff at the guard of sentry box) even if can also get the dangerous information of ultra-wide vehicle or Overheight Vehicles, The embodiment of the present invention two is by being transmitted to the handheld terminal (such as mobile phone) of nearest operator or remote by network transmission module Journey terminal (such as computer of charge station's operating room), the technical effect of security protection is further reached with this.
Based on the same inventive concept, the embodiment of the invention also provides device corresponding with method in embodiment two, see reality Apply example three.
Embodiment three
Second embodiment of the present invention provides a kind of device, described device is applied to method described in embodiment two, wherein institute Stating device includes:
Projected position point a2 obtains module, is configured as obtaining the center chassis point a1 of the target vehicle described first Detect the projected position point a2 that takes, wherein the first detection band be positioned at first column and second column it Between, and it is respectively perpendicular to first column, second column, and the linear type parallel with the crossbeam detects band, institute The length for stating the first detection band is L;
Linear distance p1 obtains module, is configured as obtaining the first side of second rangefinder and the target vehicle Linear distance p1;
Linear distance p2 obtains module, is configured as obtaining the second side of second rangefinder and the target vehicle Linear distance p2, wherein the first side and the second side are opposed two sides in the target vehicle two sides Face;
Width d computing module is configured as calculating the width of the target vehicle according to the L, the p1 and the p2 d;
Linear distance p3 obtains module, is configured as obtaining the central part site b of the crossbeam and the target vehicle Linear distance p3 between top cap central point a3, wherein described a1, a2, a3 are on same straight line;
Linear distance p4 obtains module, is configured as obtaining the central part site b of the crossbeam and first test point Central part site a4 between linear distance p4;
Height h computing module is configured as when the a2 and a4 overlaps, then according to formula h=p4-p3 meter Calculate the height h of the target vehicle;
Comparison module is configured as the width d and the height h being compared with preset secure threshold;
Display module, is configured as and comparison result is transmitted to display showing.
Optionally,
The preset secure threshold includes: vehicle safety width threshold value D and vehicle safety height threshold H;
The comparison module includes:
First submodule is configured as the width d being compared with preset vehicle safety width threshold value D, if institute Width d is stated greater than the vehicle safety width threshold value D, the comparison result includes that the width of the target vehicle is pacified more than vehicle Full duration;
Second submodule is configured as the height h being compared with preset vehicle safety height threshold H, if institute Width h is stated greater than the vehicle safety height threshold H, then it is more than vehicle that the comparison result, which includes the height of the target vehicle, Safe altitude.
By the device that the embodiment of the present invention three is introduced, filled used by the method to implement the embodiment of the present invention two It sets, so based on the method that the embodiment of the present invention one is introduced, the affiliated personnel in this field can understand the specific structure of the device And deformation, so details are not described herein.Device used by the method for all embodiment of the present invention two belongs to the present invention and is intended to The range of protection.
Example IV
It should be noted that one, embodiment two, the same inventive concept of embodiment three based on the above embodiment, the present invention Embodiment 5 provides a kind of device, comprising: radio frequency (Radio Frequency, RF) circuit 310, memory 320, input are single The components such as member 330, display unit 340, voicefrequency circuit 350, WiFi module 360, processor 370 and power supply 380.Wherein, it deposits The computer program that can be run on processor 370 is stored on reservoir 320, when processor 370 executes the computer program Realize the following step in embodiment two:
Obtain the projected position point a2 that the center chassis point a1 of the target vehicle takes in first detection, wherein It is described first detection band be between first column and second column, and be respectively perpendicular to first column, Second column, and the linear type parallel with the crossbeam detects band, the length of the first detection band is L;
Obtain the linear distance p1 of the first side of second rangefinder and the target vehicle;
Obtain the linear distance p2 of the second side of second rangefinder and the target vehicle, wherein described first Side and the second side are opposed two sides in the target vehicle two sides;
The width d of the target vehicle is calculated according to the L, the p1 and the p2;
Obtain the linear distance between the central part site b of the crossbeam and the top cap central point a3 of the target vehicle P3, wherein described a1, a2, a3 are on same straight line;
Obtain the linear distance between the central part site b of the crossbeam and the central part site a4 of first test point p4;
When the a2 and the a4 overlap, then the height h of the target vehicle is calculated according to formula h=p4-p3;
The width d and the height h are compared with preset secure threshold;
And comparison result is transmitted to display and is shown.
In the specific implementation process, when processor executes computer program, any reality in embodiment two, three may be implemented Apply mode.
It is specifically introduced below with reference to each component parts of the Fig. 5 to computer equipment:
RF circuit 310 can be used for sending and receiving for signal, particularly, after the downlink information of base station is received, to processing The processing of device 370.In general, RF circuit 310 includes but is not limited at least one amplifier, transceiver, coupler, low noise amplification Device (Low Noise Amplifier, LNA), duplexer etc..
Memory 320 can be used for storing software program and module, and processor 370 is stored in memory 320 by operation Software program and module, thereby executing the various function application and data processing of computer equipment.Memory 320 can be led It to include storing program area and storage data area, wherein storing program area can be needed for storage program area, at least one function Application program etc.;Storage data area, which can be stored, uses created data etc. according to computer equipment.In addition, memory 320 May include high-speed random access memory, can also include nonvolatile memory, a for example, at least disk memory, Flush memory device or other volatile solid-state parts.
Input unit 330 can be used for receiving the number or character information of input, and generate the user with computer equipment Setting and the related key signals input of function control.Specifically, input unit 330 may include keyboard 331 and other inputs Equipment 332.Keyboard 331 collects the input operation of user on it, and drives corresponding connection according to preset formula Device.Keyboard 331 gives processor 370 after collecting output information again.In addition to keyboard 331, input unit 330 can also include Other input equipments 332.Specifically, other input equipments 332 can include but is not limited to touch panel, function key (such as sound Measure control button, switch key etc.), trace ball, mouse, one of operating stick etc. or a variety of.
Display unit 340 can be used for showing information input by user or the information and computer equipment that are supplied to user Various menus.Display unit 340 may include display panel 341, optionally, can use liquid crystal display (Liquid Crystal Display, LCD), the forms such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) To configure display panel 341.Further, keyboard 331 can cover display panel 341, when keyboard 331 detect on it or After neighbouring touch operation, processor 370 is sent to determine the type of touch event, is followed by subsequent processing device 370 according to input thing The type of part provides corresponding visual output on display panel 341.Although keyboard 331 and display panel 341 are to make in Fig. 3 The input and input function of computer equipment are realized for two independent components, but in some embodiments it is possible to by key Disk 331 and display panel 341 are integrated and that realizes computer equipment output and input function.
Voicefrequency circuit 350, loudspeaker 351, microphone 352 can provide the audio interface between user and computer equipment. Electric signal after the audio data received conversion can be transferred to loudspeaker 351, be converted by loudspeaker 351 by voicefrequency circuit 350 For voice signal output;
WiFi belongs to short range wireless transmission technology, and computer equipment can help user to receive and dispatch by WiFi module 360 Email, browsing webpage and access streaming video etc., it provides wireless broadband internet access for user.Although Fig. 4 WiFi module 360 is shown, but it is understood that, and it is not belonging to must be configured into for computer equipment, it completely can root It is omitted within the scope of not changing the essence of the invention according to needs.
Processor 370 is the control centre of computer equipment, utilizes various interfaces and the entire computer equipment of connection Various pieces, by running or execute the software program and/or module that are stored in memory 320, and call and be stored in Data in memory 320 execute the various functions and processing data of computer equipment, to carry out to computer equipment whole Monitoring.Optionally, processor 370 may include one or more processing units;Preferably, processor 370 can be integrated using processing Device, wherein the main processing operation system of application processor, user interface and application program etc..
Computer equipment further includes the power supply 380 (such as power supply adaptor) powered to all parts, it is preferred that power supply can With logically contiguous by power-supply management system and processor 370.
Embodiment five
Based on the same inventive concept, as shown in fig. 6, the present embodiment five provides a kind of computer readable storage medium 400, It is stored thereon with computer program 411, following step in embodiment two is realized when which is executed by processor:
Obtain the projected position point a2 that the center chassis point a1 of the target vehicle takes in first detection, wherein It is described first detection band be between first column and second column, and be respectively perpendicular to first column, Second column, and the linear type parallel with the crossbeam detects band, the length of the first detection band is L;
Obtain the linear distance p1 of the first side of second rangefinder and the target vehicle;
Obtain the linear distance p2 of the second side of second rangefinder and the target vehicle, wherein described first Side and the second side are opposed two sides in the target vehicle two sides;
The width d of the target vehicle is calculated according to the L, the p1 and the p2;
Obtain the linear distance between the central part site b of the crossbeam and the top cap central point a3 of the target vehicle P3, wherein described a1, a2, a3 are on same straight line;
Obtain the linear distance between the central part site b of the crossbeam and the central part site a4 of first test point p4;
When the a2 and the a4 overlap, then the height h of the target vehicle is calculated according to formula h=p4-p3;
The width d and the height h are compared with preset secure threshold;
And comparison result is transmitted to display and is shown.
It will be understood by those skilled in the art that the restriction of the not structure twin installation of apparatus structure shown in Fig. 4 itself, it can To include perhaps combining certain components or different component layouts than illustrating more or fewer components.
In the specific implementation process, when which is executed by processor, may be implemented embodiment two and three, Any embodiment in four.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions each in flowchart and/or the block diagram The combination of process and/or box in process and/or box and flowchart and/or the block diagram.It can provide these computers Processor of the program instruction to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices To generate a machine, so that generating use by the instruction that computer or the processor of other programmable data processing devices execute In the dress for realizing the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram It sets.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions each in flowchart and/or the block diagram The combination of process and/or box in process and/or box and flowchart and/or the block diagram.It can provide these computers Processor of the program instruction to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices To generate a machine, so that generating use by the instruction that computer or the processor of other programmable data processing devices execute In the dress for realizing the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram It sets.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.

Claims (10)

1. a kind of vehicle detecting system for road safety, which is characterized in that the system comprises:
First rangefinder, first rangefinder are arranged at the centre of crossbeam;
Second rangefinder, second rangefinder are arranged on the first column;
Third rangefinder, the third rangefinder are arranged on the second column;
Camera, the camera are fixed on the crossbeam, are used for photographic subjects vehicle;
Wireless Transmitter, the Wireless Transmitter are fixed on the crossbeam;
Display, the display are fixed on the crossbeam, so that by first rangefinder, second rangefinder, institute State the range data of the target vehicle measured by third rangefinder through the Wireless Transmitter be transmitted to the display into Row display;
Light compensating lamp, the light compensating lamp are fixed on the crossbeam, for carrying out light filling in shooting process to the camera;
Wherein, first column and second column respectively correspond the two sides that road is arranged in, and first column and Second column is parallel to each other, and one end of the crossbeam is fixed on first column, and the other end of the crossbeam is fixed In on second column, and the crossbeam is mutually perpendicular to first column, second column respectively.
2. being used for the vehicle detecting system of road safety as described in claim 1, it is characterised in that:
Ladder is provided on first column;
And/or
Ladder is provided on second column.
3. being used for the vehicle detecting system of road safety as described in claim 1, which is characterized in that further include:
First lightning rod, first lightning rod are fixed at the connecting portion of first column and the crossbeam;
And/or
Second lightning rod, second lightning rod are fixed at the connecting portion of second column and the crossbeam.
4. a kind of vehicle checking method for road safety, it is characterised in that:
The method is applied to the described in any item systems of claim 1-3, wherein in target vehicle by the first detection band When, which comprises
Obtain the projected position point a2 that the center chassis point a1 of the target vehicle takes in first detection, wherein described First detection band is and to be respectively perpendicular to first column, described between first column and second column Second column, and the linear type parallel with the crossbeam detects band, the length of the first detection band is L;
Obtain the linear distance p1 of the first side of second rangefinder and the target vehicle;
Obtain the linear distance p2 of the second side of the third rangefinder and the target vehicle, wherein the first side It is opposed two sides in the target vehicle two sides with the second side;
The width d of the target vehicle is calculated according to the L, the p1 and the p2;
The linear distance p3 between the central part site b of the crossbeam and the top cap central point a3 of the target vehicle is obtained, In, described a1, a2, a3 are on same straight line;
Obtain the linear distance p4 between the central part site b of the crossbeam and the central part site a4 of the first detection band;
When the a2 and the a4 overlap, then the height h of the target vehicle is calculated according to formula h=p4-p3;
The width d and the height h are compared with preset secure threshold;
And comparison result is transmitted to display and is shown.
5. method as claimed in claim 4, it is characterised in that:
The preset secure threshold includes: vehicle safety width threshold value D and vehicle safety height threshold H;
It is described that the width d and the height h are compared with preset secure threshold and include:
The width d is compared with preset vehicle safety width threshold value D, if the width d is greater than the vehicle safety Width threshold value D, the comparison result include that the width of the target vehicle is more than vehicle safety width;
The height h is compared with preset vehicle safety height threshold H, if the width h is greater than the vehicle safety Height threshold H, then it is more than vehicle safety height that the comparison result, which includes the height of the target vehicle,.
6. method as claimed in claim 4, it is characterised in that:
When the a2 and the a4 are not overlapped, then obtain straight line between the central part site b of the crossbeam and the a2 away from From p5;
According to formulaCalculate the distance between the a2 and the a4 p24;
According to formulaCalculate the height h of the target vehicle.
7. a kind of vehicle detection apparatus for road safety, it is characterised in that:
Described device is applied to the described in any item systems of claim 1-3, wherein described device includes:
Projected position point a2 obtains module, is configured as obtaining the center chassis point a1 of the target vehicle in first detection The projected position point a2 taken, wherein it is described first detection band be between first column and second column, and It is respectively perpendicular to first column, second column, and the linear type parallel with the crossbeam detects band, described first The length for detecting band is L;
Linear distance p1 obtains module, is configured as obtaining the straight of second rangefinder and the first side of the target vehicle Linear distance p1;
Linear distance p2 obtains module, is configured as obtaining the straight of second rangefinder and the second side of the target vehicle Linear distance p2, wherein the first side and the second side are opposed two sides in the target vehicle two sides;
Width d computing module is configured as calculating the width d of the target vehicle according to the L, the p1 and the p2;
Linear distance p3 obtains module, is configured as obtaining the top cover of the central part site b of the crossbeam and the target vehicle Linear distance p3 between central point a3, wherein described a1, a2, a3 are on same straight line;
Linear distance p4 obtains module, is configured as obtaining in the central part site b of the crossbeam and first test point Linear distance p4 between the a4 of center portion site;
Height h computing module is configured as when the a2 and a4 overlaps, then according to described in formula h=p4-p3 calculating The height h of target vehicle;
Comparison module is configured as the width d and the height h being compared with preset secure threshold;
Display module, is configured as and comparison result is transmitted to display showing.
8. device as claimed in claim 7, which is characterized in that
The preset secure threshold includes: vehicle safety width threshold value D and vehicle safety height threshold H;
The comparison module includes:
First submodule is configured as the width d being compared with preset vehicle safety width threshold value D, if the width It spends d and is greater than the vehicle safety width threshold value D, the comparison result includes that the width of the target vehicle is more than that vehicle safety is wide Degree;
Second submodule is configured as the height h being compared with preset vehicle safety height threshold H, if the width It spends h and is greater than the vehicle safety height threshold H, then it is more than vehicle safety that the comparison result, which includes the height of the target vehicle, Highly.
9. a kind of vehicle detection apparatus for road safety, including memory, processor and storage are on a memory and can be The computer program run on processor, which is characterized in that the processor performs the steps of when executing described program
Obtain the projected position point a2 that the center chassis point a1 of the target vehicle takes in first detection, wherein described First detection band is and to be respectively perpendicular to first column, described between first column and second column Second column, and the linear type parallel with the crossbeam detects band, the length of the first detection band is L;
Obtain the linear distance p1 of the first side of second rangefinder and the target vehicle;
Obtain the linear distance p2 of the second side of second rangefinder and the target vehicle, wherein the first side It is opposed two sides in the target vehicle two sides with the second side;
The width d of the target vehicle is calculated according to the L, the p1 and the p2;
The linear distance p3 between the central part site b of the crossbeam and the top cap central point a3 of the target vehicle is obtained, In, described a1, a2, a3 are on same straight line;
Obtain the linear distance p4 between the central part site b of the crossbeam and the central part site a4 of first test point;
When the a2 and the a4 overlap, then the height h of the target vehicle is calculated according to formula h=p4-p3;
The width d and the height h are compared with preset secure threshold;
And comparison result is transmitted to display and is shown.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor It is performed the steps of when execution
Obtain the projected position point a2 that the center chassis point a1 of the target vehicle takes in first detection, wherein described First detection band is and to be respectively perpendicular to first column, described between first column and second column Second column, and the linear type parallel with the crossbeam detects band, the length of the first detection band is L;
Obtain the linear distance p1 of the first side of second rangefinder and the target vehicle;
Obtain the linear distance p2 of the second side of second rangefinder and the target vehicle, wherein the first side It is opposed two sides in the target vehicle two sides with the second side;
The width d of the target vehicle is calculated according to the L, the p1 and the p2;
The linear distance p3 between the central part site b of the crossbeam and the top cap central point a3 of the target vehicle is obtained, In, described a1, a2, a3 are on same straight line;
Obtain the linear distance p4 between the central part site b of the crossbeam and the central part site a4 of first test point;
When the a2 and the a4 overlap, then the height h of the target vehicle is calculated according to formula h=p4-p3;
The width d and the height h are compared with preset secure threshold;
And comparison result is transmitted to display and is shown.
CN201910078711.3A 2019-01-28 2019-01-28 A kind of vehicle detecting system for road safety, method and device Pending CN109859494A (en)

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Publication number Priority date Publication date Assignee Title
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CN209401165U (en) * 2019-01-28 2019-09-17 中国葛洲坝集团公路运营有限公司 A kind of vehicle detecting system for road safety

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000298007A (en) * 1999-04-14 2000-10-24 Ishikawajima Harima Heavy Ind Co Ltd Method and instrument for measuring width of vehicle
CN101271627A (en) * 2008-04-30 2008-09-24 张洁娟 Device for automatically detecting length, width and height of overrun vehicle
CN103542812A (en) * 2013-09-17 2014-01-29 山西国强科技发展有限责任公司 Automatic measurement device for lorry width and height
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