Communications: electrical – Land vehicle alarms or indicators
Patent
1997-07-21
1998-11-03
Mullen, Jr., Thomas J.
Communications: electrical
Land vehicle alarms or indicators
340431, 340988, 340989, 340991, 701 35, B60Q 100
Patent
active
058315195
DESCRIPTION:
BRIEF SUMMARY
The invention concerns a traffic supervision system for vehicles of the type comprising a towing unit and one or more towed or transported units, said towing unit comprising:
A data processing unit having transmit and receive facilities adapted to read/write messages from stationarily positioned tags, or to read/write via a wireless transmission.
Such a traffic supervision system is known from DK patent application No. 1095/94. This system is extremely useful in connection with the supervision of vehicles, e.g. for identification of vehicles and determination of their positions.
In connection with two-part vehicles, e.g. a truck consisting of a motor vehicle and an attached trailer, it is not quite expedient that all the data facilities are present just in the towing unit, i.e. in the motor vehicle. This means that communications between towing and transporting or transported units are interrupted upon disengagement from the towing unit.
Where a trailer and a motor vehicle, even if the motor vehicle has data processing facilities, are left at a parking ground, the trailer is extremely vulnerable to being stolen or vandalised. In this connection it is clear that if the vehicle is a refrigerator vehicle with meat or other expensive goods, it is very great values that may be lost.
Accordingly, the object of the invention is to improve the existing system known from the above-mentioned DK patent application such that the same safe supervision and position determination of a transporting or transported unit, which is e.g. left at a parking ground, is achieved.
This object is achieved according to the invention in that the towed or transported unit or units have another data processing unit with transmit and receive facilities capable of exchanging information with the data processing unit in the towing unit via a wireless transmission or via an interface.
It is hereby ensured that the towed or transported unit, no matter whether it is coupled to a towing unit or is left on a parking ground, is safely protected against theft and other vandalism, since the data processing facilities in the towed unit will instantaneously respond to abnormal events and notify the data processing unit in the towing unit which can advise the police and the like.
It is expedient according to the invention, that the data processing unit of the towed or transported unit or units can exchange information with local data processing units which are stationarily located outside the towing unit.
A system is hereby established wherein the towed or transported unit, when left alone at a terminal, is watched just as safely as if it was coupled to a towing unit.
Further, it is expedient, that the towed or transported unit or units have a first aerial capable of reading the information from a tag which is positioned on the transported unit or units.
The transported unit and the transporting unit will hereby be linked up very closely with-each other, in the sense that when the aerial tries to read the tag, it will be detected instantaneously if the tag is no longer present, e.g. if it has been attempted to remove the transported unit. In that case, the data processing unit in the transported unit immediately states that it is not at the location where it ought to be, which can take place in that it immediately signals a local data processing unit which can immediately pass on the signals to the police or the like.
When, the transported unit or units have a tag capable of receiving or transmitting instructions or information from the data processing unit via another aerial which is also located on the transported unit, the transported unit can advantageously provide information on its position. Information and instructions can also be read by a portable device. Similarly, the data processing facilities in the towing unit can write to and read from the same tag via an aerial on the transporting unit. This opens up the possibility of protection against loss of data related to e.g. the course of the transport concerned.
It is also expedient that the
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patent: 5652707 (1997-07-01), Wortham
Harder John
Lohmann-Jensen Flemming
Pedersen Heine Ewi
Mannava Ashok
Mullen Jr. Thomas J.
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