CN203838879U

CN203838879U - Traffic flow detection apparatus

Info

Publication number: CN203838879U
Application number: CN201420055413.5U
Authority: CN
Inventors: 徐承东; 黄益曼
Original assignee: TENDENCY TECHNOLOGY Co Ltd
Current assignee: TENDENCY TECHNOLOGY Co Ltd
Priority date: 2014-01-28
Filing date: 2014-01-28
Publication date: 2014-09-17
Anticipated expiration: 2024-01-28

Abstract

The utility model discloses and provides a traffic flow detection apparatus. The apparatus is used for detecting a traffic flow by means of geomagnetic sensors and acceleration sensors arranged on traffic lanes. Specifically, when a processor confirms that the geomagnetic sensors on two traffic lanes sense geomagnetic changes at the same time and the acceleration sensors on the two traffic lanes sense the same vibration frequency, then the processor determines the number of vehicles passing through the two traffic lanes is one. The traffic flow is thus increased by one. Repeated vehicle counting is thus prevented. The traffic flow detection precision is further improved.

Description

A kind of traffic flow detecting device

Technical field

The utility model relates to road transport monitoring field, relates in particular a kind of traffic flow detecting device.

Background technology

Along with the continuous expansion of China's expanding economy and city size, automobile quantity increases day by day, and the pressure of traffic administration and road construction is increasing.Wherein, to the detection of vehicle flowrate, provide the support in data for traffic administration and road construction.

Currently mainly by the geomagnetic induction coil being embedded under track, vehicle flowrate is detected, cardinal principle is for when vehicle is pressed onto this track, and the geomagnetic induction coil under this track senses corresponding signal, thereby wagon flow journey is added up.

The shortcoming of above-mentioned detection mode is to be pressed onto left and right during two tracks when rule-breaking vehicle travels, and the geomagnetic induction coil in two tracks, left and right all can sense corresponding signal, thereby has reduced the accuracy of detection of vehicle flowrate.

Utility model content

In view of this, the utility model provides a kind of traffic flow detecting device, to improve the accuracy of detection of vehicle flowrate.

For achieving the above object, the utility model provides following technical scheme:

A traffic flow detecting device, comprising: a plurality of geomagnetic sensors of GEOMAGNETIC CHANGE around track while detecting vehicle by each track;

A plurality of acceleration transducers of the vibrations in track while detecting vehicle by each track;

Be connected with described a plurality of acceleration transducers with described a plurality of geomagnetic sensors, the GEOMAGNETIC CHANGE while passing through track according to vehicle around track and the vibrations in track, the processor that vehicle flowrate is added up;

Wherein, the geomagnetic sensor on certain two track senses GEOMAGNETIC CHANGE simultaneously, and the vibration frequency that detects of the acceleration transducer on described two tracks is when identical, and described processor determines that the vehicle by described two tracks is same vehicle.

Preferably, described processor also, for according to the vibration amplitude setting in advance and the relation of vehicle load, is determined the load-carrying of vehicle.

Preferably, described processor also, for according to vibrations time and vibrations number of times, determines that the track that described vibrations cause while whether belonging to vehicle by track shakes.

Preferably, described device also comprises camera and the server being connected with described processor;

When described processor determines that the load-carrying of vehicle has been more than default load-carrying threshold value, described processor is controlled described camera vehicle is taken pictures, and photo is sent to described server stores.

Known via above-mentioned technical scheme, compared with prior art, the utility model openly provides a kind of traffic flow detecting device.This device detects vehicle flowrate by geomagnetic sensor and the acceleration transducer being arranged on track.Concrete, when processor, determine the geomagnetic sensor on certain two track and sense GEOMAGNETIC CHANGE simultaneously, and when the vibration frequency that the acceleration transducer on above-mentioned two tracks senses is identical, processor determines that the vehicle by above-mentioned two tracks is same vehicle, vehicle flowrate adds 1, avoid the statistics that repeats to vehicle, improved the accuracy of detection of vehicle flowrate.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.

Fig. 1 shows the structural representation of an embodiment of a kind of traffic flow detecting device of the utility model;

Fig. 2 shows the structural representation of an embodiment of a kind of traffic flow detecting device of the utility model.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.

Referring to Fig. 1, show the structural representation of an embodiment of a kind of traffic flow detecting device of the utility model.As shown in Figure 1, in this present embodiment, this device comprises: a plurality of geomagnetic sensors 1, a plurality of acceleration transducer 2 and the processor 3 being connected with a plurality of acceleration transducers 2 with a plurality of geomagnetic sensors 1.

Wherein, when the plurality of geomagnetic sensor 1 is respectively used to detect vehicle by each track, each track GEOMAGNETIC CHANGE around.

When a plurality of acceleration transducers 2 are respectively used to detect vehicle by each track, the shock conditions in each track.

While passing through identical track due to different vehicles, the vibrations on the ground causing are different, thereby processor 3 can be according to the vibrations on ground, and whether judgement is same vehicle by the vehicle in a plurality of tracks (such as track, two of left and right) simultaneously.

Take track, two of left and right below introduces the detection principle of this vehicle detection apparatus as example

The first geomagnetic sensor and the first acceleration transducer are set respectively on left-lane, the second geomagnetic sensor and the second acceleration transducer are set on right lane.

When vehicle is when the left-lane, because vehicle can be regarded the model that a plurality of bipolar magnet form as, thereby can cause the track variation of magnetic environment around, be arranged on the first geomagnetic sensor on left-lane for detection of this GEOMAGNETIC CHANGE.When simultaneously different vehicles is by track, the vibrations that track produces are different, are arranged on the first acceleration transducer on left-lane for detecting in real time the shock conditions in track.

In like manner, during vehicle process right lane, the detection principle of the second geomagnetic sensor and the second acceleration transducer is identical.

When rule-breaking vehicle travels in left and right two tracks, first geomagnetic sensor the second geomagnetic sensor all senses GEOMAGNETIC CHANGE, and then the shock conditions that detects according to the first acceleration transducer and the second acceleration transducer of processor, whether judgement is same vehicle by the vehicle in two tracks, left and right.Concrete, when the first geomagnetic sensor and the second geomagnetic sensor detect GEOMAGNETIC CHANGE simultaneously, and when the vibration frequency that the first acceleration transducer detects with the second acceleration transducer is identical, processor determines that the vehicle by two tracks, left and right is same vehicle, thereby to adding 1 on the basis of original vehicle flowrate, avoid the statistics that repeats to vehicle, improved the accuracy of detection of vehicle flowrate.

It should be noted that, the amplitude shaking due to the caused track of vehicle of different load-carryings is different, thereby processor also can, according to the relation of the vibration amplitude setting in advance and vehicle load, be determined the load-carrying of vehicle.

In actual application, because bicycle (bicycle) and non-vehicle (magnet) can cause equally the variation of earth magnetism when by track, thereby for fear of the impact of the factors such as bicycle and non-vehicle, processor also, for according to vibrations time and vibrations number of times, determines that the track that described vibrations cause while whether belonging to vehicle by track shakes.

In order to strengthen vehicle-mounted heavy monitoring, the breaking-up of avoiding vehicle overload to cause track.Referring to Fig. 2, show the structural representation of another embodiment of a kind of traffic flow detecting device of the utility model.Different from a upper embodiment, in the present embodiment, this device comprises: geomagnetic sensor 1, acceleration transducer 2, the processor 3, camera 4 and the server 5 that are connected with acceleration transducer 2 with geomagnetic sensor 1.

Wherein, when the load-carrying of the definite vehicle by certain track of processor 3 has been more than the default load-carrying in this track, processor 3 is controlled 4 pairs of these overloaded vehicles of cameras and is taken pictures, to photo being sent in server 5 and being stored by wired or wireless communication.Law enfrocement official can be by the relevant information in corresponding terminal downloads server 5 like this, thereby vehicle is in violation of rules and regulations punished.

Finally, also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, article or the equipment that comprises described key element and also have other identical element.

In this instructions, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.

Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the application.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can be in the situation that do not depart from the application's spirit or scope, realization in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims

1. a traffic flow detecting device, is characterized in that, comprising: a plurality of geomagnetic sensors of GEOMAGNETIC CHANGE around track while detecting vehicle by each track;

2. device according to claim 1, is characterized in that, described processor also, for according to the vibration amplitude setting in advance and the relation of vehicle load, is determined the load-carrying of vehicle.

3. device according to claim 1 and 2, is characterized in that, described processor also, for according to vibrations time and vibrations number of times, determines that the track that described vibrations cause while whether belonging to vehicle by track shakes.

4. device according to claim 3, is characterized in that, described device also comprises camera and the server being connected with described processor;