DE4340811A1 - Wireless method enabling disabled people to influence traffic light signals - Google Patents

Abstract

The method involves classifying disabled pedestrians according to the speed at which they can travel. Each disabled person is issued with a personal identity chip, which records the person's disability group. Traffic light signals are fitted with a person location device, which is linked to the traffic light controls. The personal identity chip and person location device are both equipped with transceivers and isotropic antennae. The traffic light circuitry interrogates the person's identity chip, which replies with a coded frequency. This is translated into the appropriate action, e.g. lengthening the 'green light' time for the pedestrian, indicating how long the 'green light' time is, or activating a tactile or audible signal for a blind person.

Description

This invention relates to crossing the roadway of Be Hindered as pedestrians and wheelchair users signaled on Crossings.

From DE-OS 28 16 683 is a traffic signal lamp for the blind known at the at a traffic light mast to a pedestrian green signal arranged in parallel buzzer and tactile vibrator is so that the blind at the sound of the signal or by sensing the vibrator can detect the passableness of an over-travel NEN.

Furthermore, from DE-OS 31 38 38431 a traffic signal system known, in place of the buzzer speakers vorz see whose volume level traffic noise dependent ge is regulated.

And from DE 37 11 469 C2 a Verkehrssignal- and Leitvorrich for the blind, depending on the signal was spatially associated with an optical signaling system corresponding tactile and / or acoustic signal issued becomes.

These prior art devices relate only to the blind and are concerned with finding the signal mast on the the request button and vibrator are located or with the acoustic signal or vibrator, the start sign for the To give blind people to cross the road.

The prior art continues to be that pedestrians and the disabled (including wheelchair users) to cross the road to sig nalisierten Überwegen with and without request a green time  whose duration depends on the respective signal schedule (SZPL) is dependent.

The duration of the green time is at the fixed time control for each Signal timetable constant and with traffic-dependent tax Depending on the number of vehicles.  

The problems underlying the invention

• a) Handicapped people have no opportunity to attend the green period signaled excesses according to their walking speed influence and extend it.
• b) The disabled are often not able to operate the request button on request light signaling systems because of their disability.
  • a) Handicapped, wheelchair users, the blind, spastic, mentally handicapped, etc. are according to their Be hindrance only at a more or less slow speed able to cross the road.
    This has the consequence that the green or clearing time is not enough for them to cross the road.
    After completion of the clearance, the disabled is still often on the road and the traffic gets green. The vehicles usually drive behind the disabled person, but often in front of him.
    The handicapped person is seriously endangered and unsafe. The consequence of this is that the disabled person is not able to move without help from the outside in traffic.
  • b) Disabled persons who, due to their disability, As those without arms or mental disabilities are not able to make a request button on the signaler mast to be requested for request light signal systems green, are dependent on outside help and therefore severely limited in their mobility in traffic.

These problems are a hurdle in the efforts so many Be prevented as possible to integrate into the normal daily routine, and if possible without outside help in traffic move.

Claims (8)

1. The disabled are divided into five categories according to their walking speed. category walking speed I 1.0 m / sec. II 0.8 m / sec. III 0.6 m / sec. IV 0.4 in / sec. V 0.2 in / sec. 2. Every disabled person is provided with a contactless identification Personal building block (PKB) equipped. This can be the length and Width of a bank card, but also have a different shape. The block (PKB) is assigned the corresponding category of Walking speed of the disabled coded, and works with a lithium battery with a life of about 3 years Has 50 transmission cycles per day. 3. At the interior of the signal mast of the traffic signal system is a personal tracking device (POG) installed and with the control device of the traffic signal system. 4. Both components PKB and POG need to be both with a transmitter as well with a receiver with matched frequencies and Isotropic antenna systems to be equipped. 5. The POG antenna is mounted on the signal tower at a height of 2.5 m to 3.0 m, and must have a range that the covering the entire width of the sidewalk.   6. The PKB contains a selective receiver that emits a coded frequency when called by a POG. This is received by the POG and converted into a corresponding action of the control unit of the traffic signal system, such as green time request, emission of a (eg tactile) tone, extension of the green time.

• - This allows the disabled people according to their walking speed extend the green period to cross the road.
• - Disabled people can request the green-time phase to cross the train without having to press a request button.
• - Another advantage is that the tactile signals for the blind are not constantly in operation and harass the other residents, but only when approaching a blind operation.

The subject of the invention is commercially to traffic signal systems applicable to road traffic. In particular, the application to traffic lights before people with disabilities schools and homes useful and helpful.