DE8204369U1 - TRANSPORTABLE TRAFFIC LAMP - Google Patents

Description

February 16, 1982

FABEMA traffic light service
Manfred Berghaus
5067 Kürten-Biesfeld

Transportable traffic lights

The invention relates to a transportable traffic light, in particular for construction sites, consisting of at least a light unit that can be attached to a stand and is equipped with several signal lamps, one with the Battery box connected to the lower end of the stand, in which a battery used to operate the signal lamps is arranged is, or a mains connection as well as an adjustable control transmitter for time-dependent optional and switching off the individual signal lamps.

When using a traffic light system, for example two traffic lights set up at both ends of a construction site includes, the problem exists, the two traffic lights in mutually coordinated time sequence to switch one after the other.

It is known to arrange the control transmitter and the control signals in only one of the traffic lights in such traffic light systems to send via cable or radio to the other traffic light or further other traffic lights.

The use of cables has the disadvantage that they have a particular problem with widely spaced traffic lights represent considerable effort and are also prone to failure due to the rough outdoor operation.

The use of radio traffic lights is limited as the radio signals to which only a single carrier frequency is assigned and which have to be relatively weak due to official regulations, bridge longer distances with difficulty can * If there are obstacles between the two traffic lights or, for example, the traffic lights are on opposite sides Sides of a hill are arranged, the establishment of radio contact is difficult or difficult. not possible at all.

In recent times, therefore, one has gone over to this, in each of the individual traffic lights to install relatively accurate quartz clocks and these with the programmable control transmitters to combine. With longer operation, however, regular time corrections are necessary, because a divergence the individual phases would represent a significant security risk.

The invention is therefore based on the object of a traffic light to create that can be switched in precisely specified, unchangeable time cycles, so that it is possible is that the switching phases of several coordinated traffic lights in a system are relative for an unlimited period of time to keep them constant to each other and thus to exclude control errors.

According to the invention this object is achieved in that _f of the time signal sent from the time and normal frequency transmitter is arranged in or at the traffic lights, a radio receiver for reception and that the receiver with the transmitter control is connectable.

In the case of the traffic light according to the invention, a single one is sufficient Setting of the switching phases, the exact chronological sequence of which then remains unchanged over an unlimited period of time can be sustained. Due to the attainable synchronism

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accuracy, it is possible to use the traffic light according to the invention; to combine any number of other traffic lights, whereby it is guaranteed that the phases set in each traffic light stay precisely timed to each other. A traffic light system from the traffic lights according to the invention is therefore very reliable and, moreover, extremely simple and easy to operate not susceptible to failure.

In order to bridge any short-term interference in the transmission or reception of the time signal, a quartz timer Vf can also be seen in the traffic light as a power reserve. As soon as the time signal can be received again, the time is corrected immediately without a new | the timing of the program needs to be set. ₍

There is preferably a keypad at the traffic light for programming the switch-on and switch-off times into the control unit intended.

In order to coordinate and synchronize the individual phases in a traffic light system precisely and without errors can, a switch box with a plug for at least one other, provided for another set of traffic lights be arranged transportable control transmitter, in which the set switching times can be stored.

Such a removable control transmitter can then be programmed in one traffic light with additional control transmitters and then in another traffic light can be plugged in.

The invention is illustrated in the drawing, for example, and in the following in detail with reference to FIG Drawing described.

The embodiment shown in the drawing is a mobile traffic light 1, like them

i IVJ 1 t

used on construction sites, for example. The traffic light 1 consists of a tubular stand 2, one at the top Stand end arranged, equipped with three signal lamps lighting unit 3, as well as one with the lower Stand end connected battery box 4 * For locomotion The traffic lights are arranged under the battery box 5 wheels.

The lighting unit 3 consists of three reflector housings 6, 7 and 8 with the three colors arranged one above the other Green, yellow and red. The signal lamps are powered by a battery housed in the box 4 below fed. Alternatively, however, it is also possible to provide a mains connection.

At the top of the traffic light 3, an antenna 9 is provided, which is connected to a receiver arranged in a switch box 10 11 is connected. The receiver 11 is used to receive that transmitted by the time and standard frequency transmitter DCF 77 Time signal that is sent at 1 second intervals. The time is coded on the carrier frequency sent. The signals are passed on to a transmitter 13 (control control) via an amplifier 12, which is programmable via a keypad 14 arranged on the outside of the switch box.

On the outside of the switch box 10 there are also switches for a possible manual control, as well as a Plug 16 for plugging in another control transmitter, which is synchronized with the built-in transmitter 13 using the Keypad 14 is programmable.

The one removed from plug 16 after programming Encoder can then be plugged into a corresponding plug of a second traffic light, which then connects to the first Traffic light works synchronously.

To avoid errors in programming and operation,; is only programmed the first traffic light, when in [this one earmarked for the further traffic lights donors are plugged I. On the other hand, the dependent traffic lights can only start if the pre-programmed in the first traffic light »-;

i th transportable encoders are plugged in.

In order to ensure that the traffic light system also with a
If the DCF 77 transmitter or the receiver 11 is defective, a quartz timer 17 is installed as a power reserve. It consists of a temperature-stabilized quartz rocking rice.

Claims (4)

FABEMA FuTikampeldienst Manfred Berghaus 5067 Kürten-Biesfeld Protection claims 1. Transportable traffic lights, especially for construction sites, Consists of at least ej.ner that can be attached to a stand and is equipped with several signal lamps Light unit, a battery box connected to the lower end of the stand, in which one is used for operation the signal lamps serving battery is arranged, or a power supply and an adjustable control transmitter for time-dependent optional switching on and off of the individual signal lamps, characterized that in or at the traffic light (1) a radio receiver (11) for receiving the from the time and Normal frequency transmitter sent time signal is arranged and that the receiver (11) with the control transmitter (13) is connectable. 2. Traffic light according to claim 1, characterized In the traffic light (1) there is also a quartz timer (17) as a power reserve for bridging of transmission and reception disturbances of the time signal is provided. 3. Traffic light according to claim 1 or 2, characterized characterized in that at the traffic light (1) a keypad (14) for programming the switch-on and switch-off times into the control transmitter (13) is provided. 4. Traffic light according to claim 3 for use in buckets Traffic light system, characterized in that a switch box (10) with a Plug (16) for at least one further, provided for another, synchronously controlled traffic light transportie.rbaren control unit is arranged.