GB2054497A

GB2054497A - Railway communication link

Info

Publication number: GB2054497A
Application number: GB7911135A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1979-03-30
Filing date: 1979-03-30
Publication date: 1981-02-18
Also published as: ES487759A0; ES8100578A1

Abstract

To economise on communications apparatus, to reduce the microwave health hazard and to link railway communications with those of the outside world, a common trackside housing 1 is shared by waveguides 2, co-axial cables 3, telephone and video-pair cables 4 for outside-world communications and also by waveguides 5 and co-axial cable 6 for railway communications, which cooperate with relatively movable pick- up probes. Mounting 7 for the housing 1 is shock-absorbing. <IMAGE>

Description

SPECIFICATION Railroad communication link This invention relates to the design of a transmission system to: provide railway system with communication links among its components and the rest of the outside world, reduce the required amount of new roads and outside plant equipment such as: Telephone and telegraph poles, microwave towers and antenna systems; to eliminate the interference caused by other communication systems: to reduce the threat to human health caused by microwave systems generating power densities greater than 10 microwats/CM2; serve as a communication link between airport traffic control facilities and the air route traffic control centers: and serve as a radar link between long range and short range radar site.

The objective of this invention is to advance the state of art of transmission system by making them more economic to construct: less damaging to human health and allowing for the linking of railway communication system to those of the outside world. An example of a railroad communication link, as illustrated in the accompanying drawings (see Figure 1), consists of: cable and waveguide housing 1 waveguides 2:coaxial cable section 3:telephone and vide-pair cable section 4: railway waveguide 5;railway coaxial cable 6; housing bracket 7; railway track 8; and railwaycrosties.

An example of a railroad communication link, as illustrated in Figure 1 through 4, works as outlined below: An example of a railroad communication link, as illustrated in Figure 1 through 4, works as outlines below.

The waveguides 2 (see Figure 1) are used with: hort haul An carrier system which handle high, medium and low speed data transmission channels, and telephone conversations; Long haul FM carrier system which handle multiplex telephone conversations; T.V. network information and other video data; and radar signals.

The coaxial cable sections 3 (Figure 1) contains coaxial cables which are used for: high, low, medium speed data transmission; VF channels; Radio and TV signals; video data; and regular and multiplex telephone conversations.

The telephone and video-pair cable section 4 (see Figure 1) Contains cable which is used for handling: telephone conversations and video data.

The railroad communication waveguide 5 (see Figure 2) consists of: a split wave guide 16; which is used to carry telephone, video, TV, radio and various other kinds of encoded data in the form of electromagnetic energy; a set of ballbearing plates which follow the split 12 of the split waveguide 16 at the velocity of the railway vehicle; the looped end 11 of a coaxial cable 14 is used to introduce and remove electromagnetic energy from the split waveguide 16; a rigid support member 13; ball bearing plates 10 and coaxial cable 14 move at the velocity of the railway vehicle, while maintaining the electromagnetic connection with the split waveguide.

The railway coaxial cable 6 (see Figure 3) consists of: a split coaxial cable 24, partially filled with a dietetric 19, other than air, which is used to transport telephone, TV, Radio, Video and other kinds encoded data in the form of electromagnetic energy: a set ball bearing plates, 17; used to follow the split 22 of the split coaxial cable 24 at the velocity of the railway vehicle; the end 18 of a coaxial 21 is used to introduce and remove electromagnetic energy from the split cable 24; a rigid support member 20; and a connector 23 which electromagnetically connects the split coaxial cable 24 to the railway vehicle. Once connected to the railway vehicle; the rigid support member 20, ball bearing plates 17 and coaxial cable 21 move at the velocity of the railway vehicle, which maintaining the electromagnetic connection.

The housing bracket 7 (see Figure 4) consists of: the housing clamp 22; housing clamp stand 23; a comprensible fluid cylinder 24, filled with comprensible fluid for absorbing the mechanical shock caused by the movement of the railway vehicle along the railway tracks : and the housing brackts stand 25.

1. A railroad communication link which consists of: a cable and waveguide housing, which houses the waveguides and cables, waveguides used for transmitting information in the form of electromagnetic energy; a cable section, used to transmitting information in the for of electromagnetic energy; railway waveguides, used to provide communication link among railway system components and between the external world and the railway system: railway coaxial cables, used to provide communication link among railway system components and between the external world and the railway system; and housing brackets, used to hold the cable and wave guides and cables from mechanical shock caused by passing railway vehicles.

2. A cable and waveguide housing, as set forth in Claim 1, consisting of a waveguides; coaxial cable sections, equipped with coaxial cable; telephone and video-pair cables; railway waveguides; and railway coaxial cables.

3. A railway waveguide, as set forth in Claim 1, consisting of: a split waveguide, used to carry information in the form of electromagnetic energy; a set of ball bearing plates for following the split in the split waveguide at the velocity of a railway vehicle; a coaxial cable with a lop at the end, for introducing and removing electromagnetic energy from the split wave guide; a rigid support member used to contain the looped and coaxial cable; and connector used to connect, electromagnetically, the split waveguide to the railway vehicle.

4. A railway coaxial cable, as set forth in Claim 1, consisting of: a split coaxial cable, partially with a dielectric other than air, which is used to transport information in the form of electro-magnetic energy; a set of ball bearing plates, used to follow the split in the split coaxial cable, at the velocity of a railway vehicle; the end of a coaxial cable used to introduce and remove electromagnetic energy from the split coaxial cable; a rigid support member used to

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Railroad communication link This invention relates to the design of a transmission system to: provide railway system with communication links among its components and the rest of the outside world, reduce the required amount of new roads and outside plant equipment such as: Telephone and telegraph poles, microwave towers and antenna systems; to eliminate the interference caused by other communication systems: to reduce the threat to human health caused by microwave systems generating power densities greater than 10 microwats/CM2; serve as a communication link between airport traffic control facilities and the air route traffic control centers: and serve as a radar link between long range and short range radar site. The objective of this invention is to advance the state of art of transmission system by making them more economic to construct: less damaging to human health and allowing for the linking of railway communication system to those of the outside world. An example of a railroad communication link, as illustrated in the accompanying drawings (see Figure 1), consists of: cable and waveguide housing 1 waveguides 2:coaxial cable section 3:telephone and vide-pair cable section 4: railway waveguide 5;railway coaxial cable 6; housing bracket 7; railway track 8; and railwaycrosties. An example of a railroad communication link, as illustrated in Figure 1 through 4, works as outlined below: An example of a railroad communication link, as illustrated in Figure 1 through 4, works as outlines below. The waveguides 2 (see Figure 1) are used with: hort haul An carrier system which handle high, medium and low speed data transmission channels, and telephone conversations; Long haul FM carrier system which handle multiplex telephone conversations; T.V. network information and other video data; and radar signals. The coaxial cable sections 3 (Figure 1) contains coaxial cables which are used for: high, low, medium speed data transmission; VF channels; Radio and TV signals; video data; and regular and multiplex telephone conversations. The telephone and video-pair cable section 4 (see Figure 1) Contains cable which is used for handling: telephone conversations and video data. The railroad communication waveguide 5 (see Figure 2) consists of: a split wave guide 16; which is used to carry telephone, video, TV, radio and various other kinds of encoded data in the form of electromagnetic energy; a set of ballbearing plates which follow the split 12 of the split waveguide 16 at the velocity of the railway vehicle; the looped end 11 of a coaxial cable 14 is used to introduce and remove electromagnetic energy from the split waveguide 16; a rigid support member 13; ball bearing plates 10 and coaxial cable 14 move at the velocity of the railway vehicle, while maintaining the electromagnetic connection with the split waveguide. The railway coaxial cable 6 (see Figure 3) consists of: a split coaxial cable 24, partially filled with a dietetric 19, other than air, which is used to transport telephone, TV, Radio, Video and other kinds encoded data in the form of electromagnetic energy: a set ball bearing plates, 17; used to follow the split 22 of the split coaxial cable 24 at the velocity of the railway vehicle; the end 18 of a coaxial 21 is used to introduce and remove electromagnetic energy from the split cable 24; a rigid support member 20; and a connector 23 which electromagnetically connects the split coaxial cable 24 to the railway vehicle. Once connected to the railway vehicle; the rigid support member 20, ball bearing plates 17 and coaxial cable 21 move at the velocity of the railway vehicle, which maintaining the electromagnetic connection. The housing bracket 7 (see Figure 4) consists of: the housing clamp 22; housing clamp stand 23; a comprensible fluid cylinder 24, filled with comprensible fluid for absorbing the mechanical shock caused by the movement of the railway vehicle along the railway tracks : and the housing brackts stand 25. CLAIMS

4. A railway coaxial cable, as set forth in Claim 1, consisting of: a split coaxial cable, partially with a dielectric other than air, which is used to transport information in the form of electro-magnetic energy; a set of ball bearing plates, used to follow the split in the split coaxial cable, at the velocity of a railway vehicle; the end of a coaxial cable used to introduce and remove electromagnetic energy from the split coaxial cable; a rigid support member used to contain the coaxial cable which introduces and removes electromagnetic energy from the split coaxial cable, and a connector used to connect; electromagnetically, the split coaxial cable to the railway vehicle.

5. A housing bracket, as set forth in Claim 1, consisting of: a housing clamp, used to clamp the cable and waveguide housing : a housing clamp stand, attached to the housing clamp and the compressible fluid cylinder; a comprenssible fluid for absorbing the mechanical shock caused by the movement of railway vehicles along the railway tracks; and the housing bracket stand, which supports the entire housing bracket.

6. Arailwaytransmission or communication link as set forth in Claim 1, situated along a railway system, which : provides railway systems with communications links among its components and the rest of the outside world; reduces the required amount of new roads and outside plant equipment such as telephone and telegraph poles, microwave towers and antenna systems; eliminates the interference caused by other communication systems; reduces the treat to human health caused by microwave system radiating energy into the atmosphere; serves as a communication link between airport traffic facilities and the air route traffic control enters; and serves as radar link between long range and short range radar sites.

7. A railroad communication link substantially as herein described and illustrated in the accompanying drawings.