DE2739824A1 - Communication system for vehicles in tunnels - uses retractable exhaust pipe as support for pick=up head - Google Patents

Abstract

The telecommunications system is based on the use of existing exhaust gas extraction channels (7) which run the length of the track within the tunnel or other covered environment. The exhaust pipe of the vehicle (8) is lowered so that it runs by means of guide rollers (9) in a guide groove. On both sidewalls of the guide slot are electric conductor rails (14, 15), one of which is earthed and the other insulated from earth. The exhaust itself is earthed via a wiper (16) but carries an insulated wiping contact (17) which is in contact with the side conductor rail. A temp.-resistant cable (18) passes up the exhaust pipe to enable signals to be passed between the vehicle or locomotive and a signal centre.

Description

Track guidable areas running underground

Verkehrssys tem Dio invention relates to a track-guidable area underground transport system, especially for local public transport according to the preamble of claim 1.

Local public transport vehicles are available by radio connected to a control center, from which the vehicle operators receive important information about the maintenance of an orderly regular service can. This radio connection breaks in tunnels and in covered sections because the electromagnetic waves penetrate the soil or the tunnel covering the tunnel. cannot penetrate a metal lattice structure forming the cover.

The object of the invention is to specify measures, as well as in tunnels or in covered sections a communication among the vehicles or between Vehicles and control center can be maintained.

According to the invention, this object is achieved by the characterizing features solved by claim 1.

The radio connection of the vehicles provided in free stretches is i.e. in tunnels and in covered sections of the roadway through a contact wire-dependent Connection replaced that in rubber-tyred vehicles because of the lack of grounding of the vehicle should be two-pole.

A conductor can be earthed and the corresponding sliding contact be connected to the vehicle ground, whereas the other conductor is electrically against Earth isolated and the corresponding sliding contact isolated from the vehicle ground have to be. Instead of a galvanic contact between the sliding contact and the electrical one An inductive coupling of these two parts can also be provided for conductors.

For combustion-powered vehicles for those in tunnels for Exhaust gas disposal in the carriageway an exhaust gas suction duct is embedded and where an exhaust gas snorkel which can be lowered into the exhaust gas suction duct is provided on the vehicle is, the sliding contacts and the electrical conductors on this exhaust snorkel or be arranged on the side walls of the suction channel. Another possibility consists in the fact that small pantograph brackets on the roof and on the tunnel ceiling wires are arranged in the manner of overhead lines.

The invention is illustrated below with reference to two in the drawings Embodiments will be briefly explained; show: Fig. 1 a rear view a forcibly trackable omnibus with which can be lowered into a suction channel Exhaust snorkel, which also houses the telephone line connection, 2 shows the side view of the arrangement according to FIG. 1 and FIGS. 3 and 4 end view (Fig. 3) and side view (Fig. 4) of an omnibus that is also compulsorily trackable, in which a catenary-dependent telephone connection is arranged over the roof.

The vehicle shown in FIGS. 1 and 2 drives up with wheels 3 a roadway 4, on the sides of which transverse guide webs 5 are arranged between which the vehicle can be forcibly guided by means of transverse guide rollers 6.

In the middle of the road there is an exhaust gas suction channel 7, into which a pivotable exhaust gas snorkel 8 can be lowered. The exhaust snorkel is supported by guide rollers 9 guided in a pair of guide grooves. The top of the suction channel is covered by a lip 11, which is at the point of immersion is lifted by release rollers 12.

On the two side walls of the slot for the exhaust snorkel electrical conductor tracks 14 and 15 are fastened with a ribbon-shaped cross section. One conductor track 14 is grounded, whereas the opposite conductor track 15 is held electrically insulated from earth. On the exhaust, which itself out electrically conductive Verkstoff consists and electrically conductive with the vehicle body is connected, a sliding contact 16 is provided, which is connected to the vehicle ground and cooperates with the grounded conductor 14. On the opposite On the side of the exhaust gas snorkel, an insulated sliding contact 17 is attached, which is connected to a feed cable 18 which leads to an information processing system or display system of the vehicle. The cable, which is expediently as temperature-insensitive, armored cable is formed, is on the in the direction of travel rear side of the exhaust snorkel arranged where it u against falling rocks.

Like. Is particularly protected.

At the transition from a free section to a tunnel section, the From a horizontal position transverse to the direction of travel into the position shown swiveled. Of course, you have to go to an appropriate crossing point in the middle of the lane there is a corresponding free space for such a pivoting movement be provided. The rail 15 can either be immediate about a appropriate cable to be connected to the control center, or it can be at the transition point a powerful receiver can be provided, the output of which is sent to the rail 15 is switched. Reach into the suction channel by swiveling the exhaust snorkel the two sliding contacts automatically connected to the two electrical conductors, so that at least during a certain transition period both over the ether and the antenna 19 as well as a telephone connection via the two electrical conductors 14 and 15 to the control center is possible.

If the radio contact breaks down inside the tunnel, the connection will be Maintained exclusively via the conductors and sliding contacts. The electric Ladders are so high in the vertical direction that when the vehicle moves in compression the sliding contacts do not leave the metal surface of the electrical conductor and the electrical contact is not lost.

Instead of the described galvanic connection between electrical Conductor tracks and corresponding sliding contacts can also be inductive coupling both elements can be provided via a corresponding carrier frequency. Such a one Contact-free coupling is particularly useful when accommodating the Head in the dirt-endangered suction channel is particularly useful.

In the vehicle 2 shown in Figs. 3 and 4 are on the flat 21 of the vehicle on both sides on corresponding brackets 29 small scissors-like Pantograph 25 and 26 arranged. These carry you across Direction of travel extending sliding contact. At the appropriate point on the side Bare contact wires 22 and 23 are arranged on the tunnel roof 20. The left in Fig. 3, the contact wire 22 shown is grounded, and accordingly the associated sliding contact 25 connected to the vehicle ground. The contact wire23 shown on the right is over Insulators 24 suspended from the ceiling; the corresponding sliding contact 26 is opposite Vehicle ground is isolated and the sliding contact is connected via a connecting cable 27 the vehicle information system in connection.

The sliding contacts are expediently in the area of the front arranged steered axle, which can be indicated by the dash-dotted line 30 target. The steered axle is particularly directional and accordingly the side deflections of the vehicle are particularly small at this point.

For frequent tunnel sections and / or longer tunnel sections, at which inserts there is a risk of damage to the sliding contacts For safety reasons, two sliding contacts arranged one behind the other on each side of which the rear (26) for normal operational use and the front (28) serves as a reserve; it is usually lowered.

To distribute the frictional wear on the current collector brackets A larger section of the bracket can easily be used by the telephone wire in a proven manner be stretched out in a zigzag manner.

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Claims (7)

Claims 9 From the vehicle and in some areas underground or covered existing traffic system, especially for the public one Local passenger traffic, with lane-defining lanes attached to the roadway Guide elements and with steerable rubber-tyred motor vehicles with the vehicle side attached to the steerable wheels, working together with the guiding elements acting automatic tracking means, d a d u r c h e k e n n z e i c h -n e t that for the electrical information acquisition in particular between the vehicles and a control center on the outside of the vehicles at least one isolated electrically or sliding contact (1G, 17; 25, 26) is arranged, which is connected to a vehicle side arranged information processing and / or display system is connected, and that on the roadways at least in the underground or covered area at the point on the travel profile that corresponds to the circumferential position of the sliding contact at least one isolated hanging, exposed to the outside, the course of the track the following electrical ones connected to the control center or to signaling devices Head (14, 15; 22, 23) is arranged. 2. Transport system according to claim 1 with one in the underground or covered The exhaust gas suction duct following the course of the lane is arranged in the course of the lane in the area of the roadway and with an exhaust gas snorkel that can be lowered into the suction duct on the internal combustion engine Fahrzoug, d u r c h g e k e n n n z e i c h n e t that the electric Head (14, 15) on the side wall of the suction channel (7) and that the sliding contact or contacts (16, 17) are arranged on the exhaust snorkel (s). 3. Transport system according to claim 2, d a d u r c h g e -k e n n z e i c h n e t that the electrical conductors (14, 15) are ribbon-shaped and vertical are arranged in the suction channel (7), the width of the conductor strips (114, 15) the vibrations of the vehicle body due to deflection movements and the like is equivalent to. 4. Transport system according to claim 1, d a d u r c h g e -k e n n z e i c h n e t that the sliding contacts are arranged on the vehicle roof (21) and as Resiliently pushed upwards, horizontally and transversely to the direction of travel running pantograph brackets (25, 26) are formed and that the conductors (22, 23) in the manner of an overhead line are relocated. 5. Transport system according to claim 4, d a d u r c h g e -k e n n z e i c h n e t that the current collector brackets (25, 26) on the side of the vehicle roof (21) and the overhead line (22, 23) corresponding to the side of the driving profile in the vicinity of the Tunnel wall (20) are attached. 6. Transport system according to claim 4 or 5, d a d u r c h g e k e n It is noted that the current collector bracket (25, 2G) in the direction of the vehicle are arranged at the height of the front - steered - vehicle axle. 7. Transport system according to one of claims 1 to 6, d a -d u r c h g e k e n n z o i c h n e t, da (3 instead of a galvanic contact between Sliding contact and electrical conductor create an inductive coupling between the two is provided.