EP0958564A1 - Motor vehicle detector - Google Patents

Motor vehicle detector

Info

Publication number
EP0958564A1
EP0958564A1 EP19980909318 EP98909318A EP0958564A1 EP 0958564 A1 EP0958564 A1 EP 0958564A1 EP 19980909318 EP19980909318 EP 19980909318 EP 98909318 A EP98909318 A EP 98909318A EP 0958564 A1 EP0958564 A1 EP 0958564A1
Authority
EP
Grant status
Application
Patent type
Prior art keywords
ƒ
da
characterized
arrangement according
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP19980909318
Other languages
German (de)
French (fr)
Inventor
Erik Büchel
Manfred Gabler
Walter Kuster
Elmar Reisinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04Systems determining the presence of a target
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28Details of pulse systems
    • G01S7/285Receivers
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/015Detecting movement of traffic to be counted or controlled with provision for distinguishing between two or more types of vehicles, e.g. between motor-cars and cycles
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/04Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/026Systems using the reflection of electromagnetic waves other than radio waves for detecting the presence of an object

Abstract

The invention relates to a motor vehicle detector comprising at least one detector unit (8) fitted with at least one sensor (47, 48, 49, 50), a send-receive unit (54), a power supply unit and a control unit (51, 52, 53), wherein the power supply unit includes a solar cell module (3). The send-receive unit (54), the power supply unit and the control unit (51, 52, 53) are accommodated in a housing (27, 28) and connected to the at least one detector unit (8), whereby the solar cell module (3) is fastened to the outside of the housing (27, 28). Said autonomous operation mode of the motor vehicle detector enables it, for instance, to be easily fastened to a bridge (6). Complicated installation work for power supply and data transmission to a traffic control center, for instance, is avoided.

Description

description

Vehicle detector arrangement

The present invention relates to a Fahrzeugdetektor- arrangement according to the preamble of claim 1.

Vehicle detection, information systems, for example, for determining speeds for counting vehicles or for the classification, including for traffic guidance and Verkehrsinforma-, is due to increasing traffic density more and more necessary and desirable. A device for identifying vehicles, for example, described in DE 27 54 117 C2, wherein it is required that the vehicles are equipped with a response module, which are evaluated at particular arranged in the roadway area read points. Both cars are equipped with readable response units as well as the arrangement of reading stations within the carriageway are relatively complex and cost-intensive.

The present invention is based on the object to provide a vehicle detector arrangement for practical everyday use. The inventive vehicle detector array is a constant and permanent database to detect and can be made available for evaluation to allow meaningful traffic information and the increasing traffic density matched traffic control, without having to be elaborately connected to an external power supply and data transmission cable.

For the technical olution of the object it is proposed with the invention that the transmitting / receiving unit, the power supply unit and the control unit housed in a housing and a Detektorein- are integrated connected to the at least, being disposed on an outer side of the housing at least a solar cell module is.

The vehicle detector arrangement according to the invention is a flexible, compact central processing unit, wherein the ele- ments that may be combined for one or more detector elements, in a housing, for example made of plastic, are accommodated. Such a central unit can be by means of a supporting structure on buildings, bridges and the like to arrange, but can also support poles and the like are attached. By the power supply by a solar cell module and the transmitting / receiving device, the vehicle detector arrangement thus operates independently and there are no complicated installation work required. The connection between the central unit and the at least egg NEN detector unit can also be made mechanically by means of a supporting unit. Also, detector units can be positioned completely separately from the housing and electrically connected to the central unit.

The detector unit, one or more, according to a ER- inventive proposal, at least a passive infrared sensor. Advantageously, the electric circuit may be such because of the use of the passive infrared detector that only a minimal power consumption occurs. The at least one sensor element may be disposed in a separate housing, such as a cylindrical casing with a frontal lens cover. According to one particularly advantageous proposal of the invention a detector unit comprises a plurality of sensors, wherein nachschwingende and non-nachschwingende sensors are combined. In advantageous manner three nachschwingende with a non-reverberating sensor are combined. According to a further advantageous embodiment of the invention, the detector unit or additionally or alternatively includes, additionally or alternatively ¬ radar sensors microwave sensors. The inventive combinations of reverberating and non-reverberating sensors or the use of different sensors to further improve the acquisition properties is achieved.

From the viewpoint of optimum energy utilization is proposed with the invention that the Fahrzeugdetektor- arrangement between a sleep mode and an active mode is switched. This switching is carried out automatically, for example after detection of a certain minimum number of vehicles, after a gathering free time or the like.

Advantageously, it is proposed that the solar cell module is adjustable. In particular, since a Neigungswinkelnachführung significantly improves the utilization of sunlight, in accordance with the invention, an automatic solar zellenmodulnachführung may be provided.

An important aspect of vehicle detector assembly according to the invention, a strongly favorable flow balance. A battery and a solar panel are each connected to a charge controller. Battery and charge controller are designed for a nominal 12 V. The solar panel supplies, for example, 5 to 6 W. The charge controller is connected to a voltage transformer which supplies the subsequent detector circuit nominal 6 volts. Such a circuit allows a current consumption of about 4.75 mA at 12 V. The current balance sheet shows a line receiving a maximum of 36 mW for a detector unit. The power loss of the voltage converter is approximately 20%, with about 9 mW. The charge controller has a self-consumption, which is about 12 mW. From the data it follows that a backup battery of only 6 Ah 6 can guarantee an operation of more than 40 days, without that current is supplied from the solar panel. Thus, the vehicle detector assembly according to the invention operates almost autonomously and extremely concealed discreetly because of the design. One reason is, among other things in applied PIR technology, which makes use of existing long-wave infrared radiation that every body above absolute zero (- 273 ° C) radiates. It must not be, sent out as with other technologies, energy and received again. It is only already received existing natural radiation. Here radiant contrasts are practically determined, both positive and negative contrasts. The ambient temperature thus plays a negligible role, because it is detected the thermal overall samtstrahlungsänderung, making the detection of the radiation frequency or wavelength is almost independent. The radiation contrast is inter alia a function of the size and the emission factor of the surface of a in or through the detection area moving vehicle. For obtaining sufficiently accurate measurements a temporally stable measurement value sequence is first awaited before the actual measurement.

The principle of a detector unit for the solution of the task based on the detection of a vehicle by a plurality of spatially separated zones, which form the detection region, moves in the direction of travel. These at least two zones are obtained by the optical image corresponding sensor elements by a suitable lens arrangement and the evaluation of the resulting sensor signals. The total speed information can be determined from the time it takes a vehicle to travel from Zone 1 to Zone 2nd The length of the vehicle is calculated from the determined speed and the residence time of a vehicle in one of the zones. Advantageously, more chosen as the erfordern- chen two zones and both nachschwingende and non nachschwingende sensors are used and evaluated the resulting signals to at impairment of a detector function and even in case of failure of a transmitter while sors still be able to output information to the control unit (redundancy of the measurement).

The intensity and timing of such radiation-induced changes can vary widely due to weather conditions during the day and the year and depending on the traffic flow. The resulting amplitudes and timings of the signals of each sensor element to be continuously determined and further processed for control purposes. This scheme can, for example, on the properties of the gain of the sensor signals or the arrival response thresholds of signal processing act and is particularly advantageous because both the amplifier and signal processing in all weather conditions and traffic situations to work in an optimum range and the detector unit provides very reliable results ,

The physical principle of detection due to the heat radiation change is also particularly advantageous because it allows to realize detector units in autonomous, solar-powered supply essentially very low energy consumption.

Likewise, the same physical principle, detector units allowed to be mounted laterally of the traffic lane, so that the detection range is directed obliquely from above on the roadway to be monitored. This circumstance is particularly advantageous is available if no tion Brückenkonstruk- for mounting the detector units. By choosing and arrangement of the infrared sensors and the subsequent amplification and signal evaluation even those can except moving vehicles are detected, resting in the detection area for a long time to come especially in traffic jams on information about the traffic situation.

Also, the signal processing capable of proper operation of the detector unit and some of its components, and the correct alignment of the detector unit in relation has to be monitored to the to be monitored lane, and outputting a corresponding encoded message to the control unit by a disturbance. By appropriate circuits sleep modes can also be adjusted so that, for example, an information transmission via the transmitting / receiving unit, in particular the radio modem, is performed by the control unit detected only because of certain parameters. For example, according to the program transmission conditions to be determined. The transfers are made, for example, via the SMS (short message system) band of a cellular network to a traffic control center.

In an advantageous manner, the detector means each lane of the traffic area to be monitored onto a detector, which is arranged above the transport surface levels and are detected by means of the transport movement on its associated lane. Characterized in that each lane is associated with a detector, the accurate detection of the total held at the traffic area traffic is possible because each lane is designed in terms of their width only for a vehicle. At the same time a certain area of ​​the traffic area by moving vehicles can thus be individually detected. The arrangement of the detectors above the surface level of the traffic occurring on each lane road can be detected without interference. With a derar- tig configured vehicle detector arrangement, reliable data regarding the traffic density can be gained, or the like which is advantageous in the context of a parking control system or a traffic jam monitoring. can be used. It is possible to construct the processing means of the vehicle detector arrangement according to the invention as a central unit to which all the detectors of the vehicle detector assembly are connected by a suitable wiring. In this way the cost of processing and the further line of the data obtained by the detectors of assembly Fahrzeugdetektor- considerably reduced.

Also, the central unit may advantageously be disposed above the transport surface levels. To protect the Zen traleinheit or the like against vandalism. it is advantageous to arrange them in a closed on one side by means of a cylindrical Kunststoffkuppe1 metal, in particular steel container. In connection with the arrangement of the central unit above the transport surface levels the risk of vandalism or the like is thus. largely excluded.

The plastic dome can be advantageously form of polyamide or polyester, wherein said plastics sen one hand the required mechanical strength aufwei-, on the other hand, radio wave or the like. are permeable, so that advantageously an antenna of the central unit in the region of the plastic dome can be positioned.

When used on a bridge structure the detec- can ren and the central unit are each mounted on a frame that can be externally mounted on a railing of a kenbauwerks bridges. This makes the cost of installation, repair and maintenance of vehicle detector arrangement can be significantly reduced because the bridge is built structure as a working space available. In order to reduce the risk during installation, repair and maintenance of the inventive vehicle detector arrangement that articles from the vehicle detector array fall onto the transport surface, each frame of the vehicle detector arrangement according to the invention advantageously comprises a pivotable portion which on the outside from a of the railing which is arranged in a bridge structure disposed above the position is pivotable. Significant off parts of the assembly, repair and maintenance work can be carried out on the inside of the railing of the bridge structure, so that a falling of any objects on the road surface or the pavement below the bridges kenbauwerks can be reliably vemieden. After completion of most of the assembly work, the pivotal portion of the frame that then has to pivot from its arranged above the bridge structure position to its outer side of the railing arranged position and then placed in its final installation position and secured advertising to.

A fixed attachment of the vehicle detector arrangement or the frame above the Verkehrstlache the bridge structure can be achieved if the frame is positively connected via at least three cross bars of the railing with this, the frame advantageously at two locations on the at least three cross bars of the railing with this should be connected.

For the correct positioning and for fixedly attaching the frame should have two horizontal, the outside of the railing projecting fastening arms, which are fixedly connected at one end respectively connected to the railing. In this way, attachment of the functional unit can be achieved, when this is without the interposition of the bridge construction on the frame above the road surface itself.

In an advantageous embodiment, the frame has a vertical mounting rail which is secured to the railing distal ends of the two horizontal fastening arms.

Provided that the frame has a carriage which is displaceable on the support rail in the vertical direction, it is possible to position the detectors and the central unit of the inventive vehicle detector arrangement in an arbitrary within a certain range vertical position on one side of the bridge construction, whereby the accessibility of the vehicle detector array can be considerably reduced to unauthorized persons. In this way, vandalism and other vandalism can be largely excluded in particular.

The pivotable portion of the frame can expediently be formed as a swivel arm, which pivotable at one end and is mounted fixed to the carriage and bears the detectors and the central unit of the vehicle detector array at its other end. Such a configuration can be technically and constructively comparatively in example inexpensively both a pivotable arrangement of the detectors and the central unit of the vehicle detector array and an adjustable positioning thereof in the vertical direction to realize. Due to the pivotal arrangement odd jobs can always above the bridge construction during the assembly or maintenance, so that above the bridge structure to be made, which on the one hand reduces the risk of assembly and maintenance personnel, and on the other hand causes a risk of the traffic area below the bridge construction work-use road users due to falling objects is significantly reduced.

The vertical adjustment of the displaceably mounted on the support rail of the frame in the vertical direction the carriage is in a simple manner by means of a lifting device can be carried out, which can be plugged onto the vertical support rail and includes a winch whose rope with the carriage connectable and by means of the carriage as far as vertically movable bar is, to the pivot arm of the frame is arranged above an upper spar of the railing of the bridge construction. For any installation, maintenance or repair work on the central unit or at the detectors of the Fahrzeugdetektor- arrangement of the pivot arm by means of the Hebevorrich- can then tung extent be raised until it from its other side of the bridge structure above the transport surface disposed position to its above the bridge structure arranged position can be pivoted. Thereafter, the arm can then be lowered until it rests on the upper spar of the railing, resulting in a further securing of the pivot arm and thus of the detectors or the central unit in the assumed position obtained by means of the lifting device or by releasing at the winch.

A fixed attachment of the pivot arm on the carriage and as the need arises easily realizable possibility for pivoting the pivot arm with respect to the carriage is made possible when the pivot arm by means of a pivot and a lock bolt with the slide comparable is connected, wherein the socket pin pulled out of its pivot arm and the slide connecting position and the swing arm then about the pivot pin with respect to the carriage is pivoted. A fixed mounting of the carriage and thus of the detectors and the central unit of the vehicle detector assembly in a far as possible lowered from the bridge construction position in which the accessibility of the central unit or of the detectors is significantly reduced, is achieved if the support rail in its the lower end region has an end stop for the slide and a blocking device, by means of which the carriage at the lower end stop can be blocked.

The longer the swingable in comparison to the fixing arms is, the farther can be the central unit and the detectors of the vehicle detector arrangement from the edge of the bridge structure to the center thereof toward at required assembly, repair and / or maintenance put.

In order to also prevent in case of damage of the railing at the point at which the frame is provided, in that the frame falls down on the transport surface, it is advantageous if each rack has a fall protection, on the one hand on the frame and on the other hand on at least one railing post is attached, which is arranged between a lower spar of the railing and the bridge structure.

In the following the invention with reference to embodiments with reference will be explained in more detail to the drawing. Show it:

1 shows a detector unit of a vehicle according to the invention with two detector arrangement for two center lanes pre- viewed detectors on a bridge structure;

2 shows a side view of the detector unit shown in FIG 1;

3 shows a mast mounted on a detector unit with two detectors, which ren for monitoring the two middle Fahrspu- a roadway are provided; 4 shows two attached to roadside poles detectors, by means of which, the outer lanes of a four-lane road can be monitored;

5 shows a side view of a central processing unit which is arranged on a, in turn, mounted on a railing of a bridge structure frame;

6 shows a representation corresponding to FIG 5, in which a detector is provided in place of the central processing unit; 7 shows a representation corresponding to approximately 5 shows further detail of the frame;

8 shows a top view of the central unit shown in Figure 7 together with the frame;

FIG of a lifting device located in the insert 9 is a side view; FIG 10 is a front elevational view of the FIG 7 and 8 shown seated on the frame central processing unit;

Figures 11 and 12 show two further alternative arrangement of the vehicle detectors; FIG 13 is a schematic view of an embodiment of a detector unit;

FIG 14 shows an embodiment of a basic circuit diagram for a detector unit; and

FIG 15 is an illustration of the waveforms of the sensors of the detector unit.

A traffic area shown in FIG 1 is a highway with two lanes 1, 2, 3, 4 in each direction and a central strip 5. The four lanes 1 to 4 and the central strip 5 are traversed by a bridge structure. 6 Above the central strip 5 a detector unit 7 with two detectors 8, 9 is attached to the bridge structure. 6 By means of the detector 8, the lane 3, monitors the traffic lane 2 by means of the detector. 9 Each of the lanes 2 and 3 detected traffic movement is relayed by the detectors 9 and 8 to a not shown in FIG 1 the central unit, where it is processed and the like via a transmitting / receiving unit, for example a radio modem, to a traffic control center. forwarded. The transfer takes place for example via the SMS (short message service) - band of a cellular network. The central processing unit as well as other detectors or detector units are similarly mounted on the bridge structure and, said further detectors detect the other lanes 1 and 4. FIG.

In FIG 2, a frame 10 is illustrated by means of which the detector unit is attached to a railing 11 of the bridge structure 6. 7 The frame 10 will be described in detail later.

3 shows a corresponding substantially to Figure 1 arrangement, but wherein the detecting unit 7 to the detectors 8, 9 is attached to a mast 12 which is situated on the median strip 5 of the highway.

As can be seen for example from FIG 4, can further laterally highway masts 13, 14 to be positioned where further detectors 15, 16 are mounted, by means of which the traffic movements are detectable on the outer lanes 1, 4 of the highway.

By combining the provided in Figure 3. detectors 8, 9 and provided in FIG 4 detectors 15, 16, all four lanes 1 to 4 with regard to the highway blank taking place on them traffic movements monitor permeable reliably. In a motorway which has more lanes, accurate detection can be performed by appropriate attachment of other detectors, wherein each detector is assigned to a lane of the highway. In the arrangement of, for example, a plurality of detectors disposed at one side of the motorway mast is important to ensure that no Prom attungseffekte occur for the individual detectors. shown in the same manner as with reference to FIGS 1 to 4, can be also routes feeding motorways or similar road systems monitor.

The frame 10 illustrated in FIG 5 is used to hold a central unit 17 of the inventive arrangement above a Fahrzeugdetektor- is located under the bridge structure 6, traffic area not shown in Fig. 5 The holder of the central unit 17 is designed such that the central unit 17 is arranged next to the bridge structure 6 above the Verkehrstlache.

The frame 10 has two in the vertical direction at a distance above each other arranged fixing arms 18, 19 which extend parallel to each other horizontally. The fastening arms 18, 19 are connected at one end by means of retaining tabs 20, as is particularly clear from FIG 10, three cross bars 21 of the railing 11 is firmly connected. By means of the retaining tabs 20, there is provided a non-positive connection between the fastening arms 18, 19 and the cross bars 21 of the railing 11, wherein damage to the handrail 11 is not Aufritt.

To the railing distal ends of the attachment arms 18, 19 has a vertically extending rail 22 is mounted parallel to the cross bars 21 of the handrail 11 on the outside thereof from the banister upper edge to beneath the cap of the bridge structure 6 extends.

On the support rail 22, a carriage 23 is mounted displaceably in the vertical direction, from which in the railing 11 the opposite direction extends an arm 24, at whose end schlittenfernem the central unit is introduced reasonable 17th The swing arm 24 is by means of a pivot pin 25 and a removable cotter pin 26 connected to the carriage 23rd Even if the insert pin 26 extends through the carriage side and the swivel-arm receptacles other than the pivot pin 25, the swing arm 24 is fixed to the carriage 23 mounted. A pivoting of the pivot arm 24 with respect to the carriage 23 is then not possible. When the insert pin 26 is pulled out from the carriage side and swivel-arm receptacles, the pivoting arm can be pivoted about the pivot pin 25 with respect to the carriage 23 24th

The mounted on the carriage distal end of the swinging arm 24 the central unit 17 is arranged in a cylindrical steel vessel 27 which is closed at its upper end by means of a plastic dome 28th A required to forward data antenna 28 'of the central unit 17 is arranged in the region of the plastic dome 28 to allow the sending of data without interference.

The central unit 17 is provided with a solar panel 29, in the 17 required electrical energy is environmentally changeable by means of the solar energy for the energy supply of the central unit.

In FIG 6, a corresponding one in FIG 5 is shown frame 10, is supported on the central unit 17 instead of a detector 30th As for the structure and the functional, the frame 10 shown in FIG 6 corresponds to that in Fig. 5

For installation, maintenance and repair work on the central unit 17 and the detector 30, or if necessary, they can also to the appliance of the frame 10 a shown in FIG 9 Hebevor- device 31 is provided. To the lifting device 31 include a stop tube 32 which is inserted from above into the support rail 22 of the frame 10th Furthermore, the lifting device 31 has a winch 33, by means of a roller to a rope 34 at the upper end of the stopper pipe 32 running rope

35 is wound.

When the support rail 22 plugged stop tube 32 of the cable 35 attached to the carriage can advertising 23 as far as the lifted until the pivot arm 24 located above an upper spar

36 of the railing 11 is located. the arm can then by releasing the lock bolt 26 24 arranged around the pivot pin 25 from its outer side of the balustrade 11 in a position on the inside of the railing 11 over the bridge structure 6 disposed position be pivoted, in the safe

Repair, construction and maintenance work can be performed.

Figures 11 and 12 show different arrangements of detector units 37,38 for the monitoring of a total of four lanes 1,2,3,4 means jib masts 39, wherein a T-boom mast is used in FIG. 11 Such arrangements can detect a plurality of tracks and are also suitable for six- and multi-track detections.

The possibility of mounting in a large mounting height, for example using cantilever poles and the like, in view of the so-called shadowing effects is of great advantage.

An exemplary embodiment of a detector unit 8 is shown in Fi gure 13, wherein it is a preferably cylindrical housing 41, for example a metal housing which is closed on an open side with a lens 42nd For example, a plastic Fresnel lens may be arranged behind a protective plastic film. Inside a circuit board 43, for example, with the sensors and amplifiers as well as a printed circuit board 44, for example, for signal processing, analysis and communication interface are arranged. The sensors 45 are, for example, PIR sensors. The connection cable 46 is guided into the housing waterproof 41st It is used for power supply and data exchange, so that several lines are routed within the cable.

An embodiment of a basic circuit diagram of such a detector unit is shown in Figure fourteenth Thereafter, the passive infrared radiation (PIR) through the lens 42 is on the one hand Siert nachschwingende sensors 47, 48 and 49 and, in addition to a non-reverberating sensor 50 focus. The reverberating sensors have, for example Lithiumtanthalat or PVDF, the non-nachschwingende sensor may be, for example, a cooled photovoltaic sensor or a thermopile sensor. The outputs of these sensors are preprocessed in a control unit by means of the amplifier 51 and supplied to the signal processing 52nd relevant traffic data at its output, for example, already in the form of speed, vehicle length, residence time, etc. before and are provided in the memory 53rd From the memory a data set can be accessed for example via the communication interface 54 as a wireless modem of the transmitter / receiver unit as needed. For a uniform power supply of the voltage stabilizer 55 provides the different waveforms 47 ', 48', 49 'of the reverberating sensors 47,48,49, in the overall showed Embodiment 3, and the waveform 50' of the according to the embodiment only non-reverberating sensor 50 are shown in Figure 15 °.

Claims

Patentanspr├╝che
1. Vehicle detector arrangement with at least one at least one sensor (47,48,49,50) comprising detector unit (7), a transmitting / receiving unit (54), a
Power supply unit and a control unit (51,52,53), characterized in that the power supply unit daß a solar cell module (29).
2. Vehicle detector arrangement according to claim 1, characterized in that daß the transmitting / receiving unit (54), the power supply unit and the control unit (51,52,53) in a Gehäuse (27,28) as a central processing unit (17 where (at a Außenseite of Gehäuses 27,28)) are housed) and connected to the at least one sensor (47,48,49,50), at least a solar cell module (29) is arranged.
3. The vehicle detector arrangement according to one of Anspr├╝che 1 or
2, characterized in that the detector unit (7) Passive infrared sensors daß (PIR) (47,48,49,50) has.
4. The vehicle detector arrangement according to one of the preceding Ansprüche, characterized in that the detector unit in daß
(7) nachschwingende (47,48,49) and non-nachschwingende (50) sensors are combined.
5. The vehicle detector arrangement according to claim 4, characterized in that the detector unit (7) daß three nachschwingende (47,48,49) and a non-reverberating (50) having sensor.
6. The vehicle detector arrangement according to one of the preceding Ansprüche, characterized in that the detector unit daß
(7) comprises a radar transmitter or -empfänger.
7. The vehicle detector arrangement according to one of the preceding Ansprüche, characterized in that the detector unit daß
(7) comprises a microwave transmitter or -empfänger.
8. The vehicle detector arrangement according to one of the preceding Ansprüche, characterized daß the arrangement is at least partially switched between a sleep mode and an active mode.
9. The vehicle detector arrangement according to one of the preceding Ansprüche, characterized in that the central unit daß
(17) having a plurality of detector units (7) is connected, are aligned with each f├╝r different lanes (1,2,3,4) respectively arranged.
10. The vehicle detector arrangement according to one of the preceding Ansprüche, characterized in that the power supply unit daß a solar cell module (29), a battery, umfaßt a charge controller and a voltage converter.
11. The vehicle detector arrangement according to one of the preceding Ansprüche, characterized daß the transmitting / receiving unit, a radio modem as
Communication interface (54) umfaßt.
12. The vehicle detector arrangement according to one of the preceding Anspr├╝che, characterized da├ƒ the control unit (51,52,53) based on predetermined parameters f├╝r the time the ├ £ bermittlung information ├╝ber the transmission - / receive unit determined.
13. Vehicle detector arrangement according to one of the preceding Ansprüche, characterized daß zusätzliche detectors for the determination of environmental data such as temperature, humidity, gas concentration or the like are included.
14. Vehicle detector arrangement according to one of the preceding Ansprüche, characterized daß, it comprises a video camera.
15. Vehicle detector arrangement according to one of the preceding Ansprüche, characterized daß individual components of the assembly are shut down in idle mode.
16. Vehicle detector arrangement according to one of the preceding Ansprüche, characterized daß the at least one detector unit (7) comprises a control, which determines the sequence and Intensität radiation contrasts and used for control.
17. Vehicle detector arrangement according to one of the preceding Ansprüche, characterized in daß this makes a Funktionsselbstüberwachung and (to the control unit in the presence of Störungen, misalignment of the alignment or the like, relating 51.52 , 53) outputs.
18. Vehicle detector arrangement according to one of the preceding Ansprüche, characterized in that the central unit daß
(17) closed in a one-sided by means of a plastic dome (28) cylindrical metal, in particular Stahlbehälter (27) is arranged.
19 is formed vehicle detector arrangement according to claim 18, characterized in that daß the plastics dome (28) made of polyamide or polyester.
20. Vehicle detector arrangement according to claim 18 or 19, characterized in that the central unit (17) daß in the region of the plastic dome (28) comprises an antenna (28 ') has.
21. Vehicle detector arrangement according to one of the preceding Ansprüche, characterized in that the detector unit daß
(7) or central processing unit (17) are each mounted on a frame (10) at a außenseitig Geländer (11) of a Brückenbauwerks (6) is attachable.
22 having vehicle-detector arrangement according to claim 21, characterized in daß each rack (10) comprises a pivotable portion (24) of from a außenseitig
Geländers (11) arranged arranged position is pivotable into a über the Brückenbauwerk (6).
23. Vehicle detector arrangement according to one of Ansprüche 21 or 21, characterized in daß each frame (10) two horizontal außenseitig of Geländers (11) has projecting mounting arms (18,19), the are firmly connected at one end respectively to the Geländer (11).
24. Vehicle detector arrangement according to claim 23, characterized in daß each frame (10) has a vertical supporting rail (22) which is attached to the ends of the two horizontal geländerfernen mounting arms (18,19).
25. Vehicle detector arrangement according to claim 24, characterized in daß each frame (10) a carriage (23; having slidably (to the support rail 22) in the vertical direction.
26 is formed vehicle detector arrangement according to claim 25, characterized in that daß the pivotable portion of each rack (10) and pivot arm (24) pivotable at one end and fixed on the slide (23) is mounted and at its the other end of at least trägt a detector (30) and / or the central unit (17).
27. Vehicle detector arrangement according to claim 26, characterized in that daß in the vertical support rail (22) of each frame (10) a lifting device (31) can be fitted, comprising a cable winch (33), the rope (35) with the carriage (23) can be connected, and by means of which the carriage (23) is vertically movable so far until the swivel arm (24) of the frame (10) above an upper spar (36) of Geländers (11) is arranged.
28. Vehicle detector arrangement according to one of the preceding Ansprüche, characterized in that the control unit daß
(51,52,53) is adapted daß an operating über for 30 days without recharging the power supply unit is möglich.
29. Vehicle detector arrangement according to any preceding Ansprüche, characterized daß the detector unit (7) is arranged so their daß. Meßrichtung the lane (1,2,3,4) has an angle between 0° and 90°.
30. Vehicle detector arrangement according to one of the preceding Ansprüche, characterized in that the control unit daß
(51,52,53) is adapted da├ƒ only after a time-stable Me├ƒwertfolge the ├ £ transmission speeds of the start.
EP19980909318 1997-02-05 1998-02-03 Motor vehicle detector Ceased EP0958564A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE29701998U 1997-02-05
DE1997201998 DE29701998U1 (en) 1997-02-05 1997-02-05 Autonomously operating vehicle detector
DE29709286U 1997-05-27
DE1997209286 DE29709286U1 (en) 1997-02-05 1997-05-27 Vehicle detector arrangement
DE29710738U 1997-06-19
DE1997210738 DE29710738U1 (en) 1997-06-19 1997-06-19 Monitoring device for a traffic area
PCT/DE1998/000294 WO1998035330A1 (en) 1997-02-05 1998-02-03 Motor vehicle detector

Publications (1)

Publication Number Publication Date
EP0958564A1 true true EP0958564A1 (en) 1999-11-24

Family

ID=27219922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980909318 Ceased EP0958564A1 (en) 1997-02-05 1998-02-03 Motor vehicle detector

Country Status (5)

Country Link
US (1) US6417783B1 (en)
EP (1) EP0958564A1 (en)
CN (1) CN1246948A (en)
CA (1) CA2279465A1 (en)
WO (1) WO1998035330A1 (en)

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Also Published As

Publication number Publication date Type
WO1998035330A1 (en) 1998-08-13 application
CN1246948A (en) 2000-03-08 application
CA2279465A1 (en) 1998-08-13 application
US6417783B1 (en) 2002-07-09 grant

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