CN103796267B - Communication system applied to traffic system of operation line - Google Patents

Abstract

The invention discloses a communication system applied to a traffic system of an operation line. The communication system comprises: a station sub system, which is arranged at a station of a traffic system and is used for realizing communication between terminal equipment in the station and an external network; a vehicle-to-ground sub system, which is used for realizing communication between terminal equipment in a traffic tool and the external network and includes a compartment network bridge and a vehicle-to-round network bridge; and a control center, which is used for carrying out general controlling on communication between the station sub system and the vehicle-to-ground sub system. According to the technical scheme, the throughput capacity of the communication system of the traffic system of the operation line with high flow density can be increased and the bandwidth of the communication system can be increased. Moreover, the high-speed internet surfing demand with the rate of over 1 Mbps for each person can be satisfied, so that the user of the communication system can enjoy the high-quality and high-speed internet surfing experience.

Description

For the communication system of the traffic system of working line

Technical field

The present invention relates to the communication system of the transport information for working line.

Background technology

In recent years, traffic problems are the persistent ailments of puzzlement urban development always.In order to tackle traffic problems, the vehicles of many working lines arise at the historic moment, and wherein most is representational surely belongs to subterranean railway.Subterranean railway is called for short subway or subway, specially refers in the narrow sense operate to main city railway system or rapid transit system (RTS) in underground; In a broad sense, because this type of systems many are in order to coordinate the environment of build, the section that also may have esd ground exists, and therefore usually covering all can regional various underground and ground high density traffic and transportation system.

Along with subway becomes the preferred traffic instrument of urban population trip gradually, people spend and also get more and more in the time on subway of taking, and have higher requirement thus to the communication system with subway.Because subway line is complicated, the warehouse-in outbound mode of subway train is different from the general vehicles, therefore existing traffic communications system is difficult to the communication being suitable for subway train, and the WLAN (WLAN) being especially difficult to be suitable for subway transportation system is laid.

At present, in the traffic system of working line, especially in underground railway track, can the substantially available communication system of layout.But current communication system, especially the transmission speed of wireless network is not given prominence to, and can't realize the operation such as video calling, high-speed downloads smoothly, also cannot meet the growing demand of broad masses of the people to wireless communications traffic and speed.In addition, often run in subway circulation process at present go offline, data misinformation problem, this is that rate of substitute, the error rate are all higher owing to being arranged on wireless network in underground railway track at present and unstable.Therefore, industry is badly in need of a kind of high performance wireless coverage scheme, to meet the growing terminal equipment of the common people if smart mobile phone, panel computer etc. are to the demand of internet access, and ensures the safety and stability of access to netwoks.

Summary of the invention

In the face of above-mentioned defect of the prior art, the present invention proposes the system of terminal equipment in a kind of vehicles of working line and external network communication, solve the technical problem of carrying out wireless LAN communication of the vehicles how being suitable for working line.

The invention provides the communication system of the traffic system for working line, comprising: train station subsystem, be arranged on the station place of traffic system, for realizing the communication of terminal equipment in station and external network; Car is subsystem over the ground, and for realizing the communication of terminal equipment in the vehicles and external network, car over the ground subsystem comprises compartment bridge and car bridge over the ground; And control centre, for train station subsystem and car the communication over the ground between subsystem carry out overall control.

Preferably, in train station subsystem, be provided with switch, and be provided for multiple access points of network service for the terminal equipment in station.

Preferably, switch is connected to control centre by optical fiber or network cable.

Preferably, at least one directional antenna or at least one omnidirectional antenna is provided with in subsystem AT STATION.

Preferably, omnidirectional antenna is provided with in subway concourse AT STATION and/or platform.

Preferably, this omnidirectional antenna comprises base plate and first medium plate arranged in a crossed manner and second medium plate, first medium plate and second medium plate are placed on base plate, first medium plate has for be operated in the first frequency range multiple first extremely sub, second medium plate has for being operated at least one of the second frequency range second extremely sub, and multiple first extremely in son one first extremely son is different with other first extremely sub polarised directions.

Preferably, this omnidirectional antenna comprises base plate and first medium plate arranged in a crossed manner and second medium plate, first medium plate and second medium plate are placed on base plate, first medium plate has first extremely sub and at least one director for being operated in the first frequency range, and second medium plate has for be operated in the second frequency range second extremely sub.

Preferably, car over the ground subsystem also comprises: first communication module, is arranged on the vehicles of traffic system, and first communication module comprises compartment bridge; And second communication module, comprise multiple car bridge over the ground, multiple car over the ground bridge is provided at predetermined intervals on the working line of the described vehicles, wherein, communication network is utilized to carry out communicating and being communicated with external network by second communication module between first communication module with second communication module.

Preferably, first communication module also comprises switch, and switch is connected with compartment bridging communication, and is provided at least one access point of network service for terminal equipment.

Preferably, when terminal equipment moves to the second access point from the first access point, system realizes terminal equipment from described first access point to the seamless roam of the second access point by Radio Access Controller.

Preferably, the second access point is used for the certification of the terminal equipment received and reassociation requests to send to Radio Access Controller.Radio Access Controller comprises: authentication checks module, and for when receiving certification and the reassociation requests of the terminal equipment that described second access point transmits, whether sense terminals equipment certification; Re-association indicating module, during for terminal equipment being detected by the first access point authentication in authentication checks module, what send that the second access point and terminal equipment set up re-association is indicated to described second access point.Second access point also for when receiving the second access point and the instruction of re-association set up by terminal equipment, sets up re-association with terminal equipment.

Preferably, this system comprises the first Radio Access Controller and the second Radio Access Controller, and each Radio Access Controller manages at least one access point.First Radio Access Controller comprises authentication information distribution module, for terminal equipment by first Radio Access Controller management under the first access point first accessing WLAN time, the authentication information of the terminal equipment of acquisition is distributed to other Radio Access Controller in pre-configured roaming territory.The second access point under second Radio Access Controller management is used for sending the certification from terminal equipment received and reassociation requests to second Radio Access Controller.Whether second Radio Access Controller comprises: authentication checks module, for when receiving certification and the reassociation requests of the terminal equipment that the second access point transmits, according to the authentication information sense terminals equipment certification of the terminal equipment stored; Re-association indicating module, during for terminal equipment being detected by the first access point authentication in authentication checks module, what send that the second access point and terminal equipment set up re-association is indicated to the second access point.Second access point sets up re-association for the instruction and terminal equipment of setting up re-association according to the second access point and terminal equipment.

Preferably, bridge neighboring switch in compartment is arranged.

Preferably, the quantity of multiple access point is equal to or greater than the number of carriages that the vehicles have.

Preferably, compartment bridge is provided with the first directional antenna, and multiple car over the ground bridge is provided with the second directional antenna.

Preferably, the second directional antenna is oriented relative with the direction of the first directional antenna, accesses the maximum antenna of signal strength signal intensity and carry out radio communication in the first directional antenna and the second directional antenna.

Preferably, this first directional antenna comprises: be provided with the first laminate of the feed of at least one emitting electromagnetic wave and be provided with the second laminate of at least one bridge antenna oscillator, the position that first laminate corresponds to each feed is formed with the gap passed for electromagnetic wave respectively, wherein, the first laminate is fixedly connected with at each interval with the second laminate.

Preferably, electromagnetic tranmitting frequency is 1.8GHz ~ 12GHz.

Preferably, wave frequency is 4.9GHz ~ 6GHz, is more preferably 5GHz ~ 5.9GHz.

Preferably, wave frequency is 2GHz ~ 2.6GHz, is more preferably 2.4GHz ~ 2.5GHz.

Preferably, compartment bridge is arranged on the front portion in compartment.

Preferably, the switch at second communication module platform place corresponding to the vehicles connects, and switch is connected with control centre.

Preferably, multiple car over the ground bridge be arranged on the right side of vehicles direction of advance along working line.

Preferably, working line is provided with sidewall, multiple car over the ground bridge is arranged on sidewall.

Preferably, working line is provided with multiple supporter, multiple car over the ground bridge is arranged on multiple supporter correspondingly with predetermined space.

Preferably, working line is provided with roof, multiple car over the ground bridge is arranged on roof.

Preferably, described predetermined space is 0.5 meter to 1000 meters.

Preferably, predetermined space is 100 meters to 800 meters.

Preferably, predetermined space is 200 meters to 400 meters.

Preferably, multiple car over the ground bridge be provided with directional antenna.

Preferably, second directional antenna comprises: reflector and be located at least one antenna unit array of reflecting surface side of reflector, antenna unit array comprise multiple there is the first working frequency range the first antenna element and at least one there is the second antenna element of the second working frequency range, multiple first antenna element surrounds one week, and the second antenna element encloses among described multiple first antenna element.First antenna element and the second antenna element are formed by the medium substrate be vertically fixed on side, same reflection face and the main element be formed on medium substrate and director; First antenna element has three, and the middle vertical plane vertical with reflecting surface that the medium substrate of three the first antenna elements has separately intersects at a line, and often between adjacent two middle vertical planes, angle is 120 °; The medium substrate of the second antenna element is perpendicular to the medium substrate of one of them the first antenna element.

Preferably, access the antenna that signal strength signal intensity is greater than-85dB in the first antenna and multiple second antenna and carry out radio communication.

Preferably, the vehicles of traffic system are in motion all the time only to its side receiving and transmitting signal.

Preferably, control centre also comprises load balancing module, flow-control module, network management module, log management module and authentication and accounting module.

Preferably, the vehicles are subway, light rail, seabed tunnel train, aerial vehicle, marine vehicle, high ferro or bus.

Preferably, communication system uses WLAN (wireless local area network), 3G network, 4G network or microwave communication network.

In the system of the present invention, by adopting directional antenna or the omnidirectional antenna of different structure configuration, the omnidirectional that can realize wireless network in this system covers, and improves wireless transmission speed largely, and reduces rate of substitute and the error rate of Signal transmissions.Further, have employed the processing mode of roaming at a high speed in the system of the present invention, terminal equipment can be made to realize good traffic operation equally when high-speed mobile.

In addition, in the inventive solutions, by using the bridge arranged in a vehicle and the bridge arranged along working line, the throughput of the communication system of the traffic system of the larger working line of people's current density can be increased, increase the bandwidth of this communication system, and online demand at a high speed can be provided to be greater than everyone speed of 1Mbps for user, thus make the user of this communication system can enjoy high-quality, the online of high speed experiences.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the schematic diagram of the communication system of the traffic system of working line according to the embodiment of the present invention;

Fig. 2 to Fig. 4 is the directional antenna illustrating that the narrower places such as the corridor be arranged in train station subsystem are arranged;

Fig. 5 to 7 is schematic diagrames that the all-around top absorbing antenna be arranged in station is shown;

Fig. 8 to 10 is schematic diagrames that another all-around top absorbing antenna be arranged in station is shown;

Figure 11 is the block diagram that the car system of subsystem is over the ground shown;

Figure 12 to Figure 26 is the schematic diagram of the directional antenna be arranged in compartment bridge;

Figure 27 to Figure 30 is the schematic diagram being arranged on the directional antenna of car over the ground in bridge; And

Figure 31 and Figure 32 is the schematic diagram of the seamless roam illustrated between the access point in present system.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of protection of the invention.

Embodiments of the invention are described in detail referring to accompanying drawing.

With reference to Fig. 1, the invention provides the communication system of the traffic system for working line, comprising: train station subsystem, be arranged on the station place of traffic system, for realizing the communication of terminal equipment in station and external network; Car is subsystem over the ground, and for realizing the communication of terminal equipment in the vehicles and external network, car over the ground subsystem comprises compartment bridge and car bridge over the ground; And control centre, for train station subsystem and car the communication over the ground between subsystem carry out overall control.

It should be noted that, in embodiments of the present invention, terminal equipment can comprise mobile phone, panel computer and notebook computer etc.In addition, station mentioned here is not be necessary for traditional station, and it can be any fixed station in this traffic system.

Preferably, in train station subsystem, be provided with switch, and be provided for multiple access points of network service for the terminal equipment in station.This switch is connected to control centre by optical fiber or networking cable.

Preferably, at least one directional antenna or at least one omnidirectional antenna is provided with in subsystem AT STATION.

Detailed below the antenna in train station subsystem to be described in detail.

Fig. 2 to Fig. 4 is the directional antenna illustrating that the narrower places such as the corridor be arranged in train station subsystem are arranged.

As shown in Figure 2, this antenna comprises dielectric-slab 6, signal reflex plate 7 and base plate 4, dielectric-slab 6 and signal reflex plate 7 are placed on base plate 4, signal reflex plate 7 is arranged at the side of dielectric-slab 6, dielectric-slab 6 have for be operated in the first frequency range first extremely son 1 and for be operated in the second frequency range second extremely son 2, first extremely son 1 with second extremely son 2 all there is feedback point for being connected feeder line.

In addition, for the consideration to design space, above-mentioned first extremely son 1 be dipole, second sub 2 is extremely dipole.In addition, first extremely son 1 be the half wavelength dipole corresponding to the first frequency range.Second extremely son 2 be the half wavelength dipole corresponding to the second frequency range.

In one embodiment, first extremely son 1 with second extremely sub 2 polarised direction can be different.

In addition, dielectric-slab 6 has first surface and second surface, and first extremely sub 1 is arranged at first surface, and second extremely sub 2 is arranged at second surface, and wherein, second surface is towards signal reflex plate 7.

In one embodiment, signal reflex plate 7 is dull and stereotyped.Further, dielectric-slab 6 is parallel with signal reflex plate 7 or in a predetermined angular.

In another embodiment, signal reflex plate 7 has radian.

In addition, signal reflex plate 7 can be conducting reflective face (such as, can be metallic plate), or signal reflex plate 7 has the dielectric panel in conducting reflective face (such as, can be metal level) 3 at least one surface coverage.

In addition, the bottom of dielectric-slab 6 is provided with conducting strip (such as, can be sheet metal) 5, and dielectric-slab 6 is connected with base plate 4 (such as, welding) by the conducting strip 5 of bottom.In other embodiments, conducting strip can be installed on dielectric-slab and signal reflex plate 7 by other forms.

In addition, the bottom of signal reflex plate 7 is provided with conductive earthing sheet (such as, can be sheet metal), and signal reflex plate 7 is welded to connect by the conductive earthing sheet of bottom and base plate 4.

In addition, first extremely son 1 and second extremely son 2 for being fixed on the conductive structure of dielectric-slab 6, such as, sheet metal construction.

Further, dielectric-slab 6 and signal reflex plate 7 pass through perforation (not shown) plug-in mounting to base plate 4.

In addition, with reference to Fig. 2, base plate 4 can be circular.In other scenes, according to the restriction of the factor such as installation site and antenna cover, base plate 4 also can be rectangle, triangle or other shapes.

In addition, the first above-mentioned frequency range can be 1.8GHz-3GHz, and the second above-mentioned frequency range can be 4.8GHz-6GHz.Certainly, the first frequency range and the second frequency range are optional in 1.8 ~ 12GHz.

In one embodiment, the first frequency range is 2.4GHz-2.5GHz, and the second frequency range is 5.0GHz-5.9GHz.In one embodiment, the first frequency range is 2GHz-2.6GHz, and the second frequency range is 4.9GHz-6GHz.In other embodiments, the first and second frequency ranges of Antenna Operation also can be other frequency ranges.Continue with reference to Fig. 2, in one embodiment, the directional antenna that the present invention proposes can be WLAN dual-band and dual-feed ceiling mount antenna, and it is that narrow long type indoor environment is as several scenes such as inside corridor passageways, subway station that this antenna goes for ground.This antenna mainly comprises second extremely sub 2, signal reflex plate 7 (having metal mirror 3) and a base plate 4 of first extremely sub 1,5.0 ~ 5.9GHz of a 2.4 ~ 2.5GHz.Whole antenna is designed to two frequency ranges (2.4 ~ 2.5GHz and 5.15 ~ 5.85GHz) and carries out feed by two feeder lines, a corresponding feeder line of frequency range.

Above-mentioned first extremely son 1 and second extremely son 2 half wavelength dipole that be respectively corresponding frequency band (2.4 ~ 2.5GHz and 5.15 ~ 5.85GHz), and the molded dimension of the two can adjust according to design requirement.

The dipole cross polarization of two different frequency ranges, to increase by two isolations extremely between son.

Metal mirror 3 in the side of the first extremely son 1 and second extremely son 2, and can adjust the molded dimension of metal mirror 3 according to design requirement and change the antenna pattern of antenna with the parameter such as spacing angle of first, second extremely son.

In addition, as shown in Figure 3 and Figure 4, a surface of the dielectric-slab 6 shown in Fig. 3, be provided with first extremely son 1; Dielectric-slab 6 shown in Fig. 4 another surface, be provided with second extremely son 2.Further, the surface at the second extremely sub 2 places can towards signal reflex plate 7.

First extremely son 1, second extremely son 2, metal mirror 3 all adopts copper-clad plate to etch and forms, technique is simple, and is convenient to the extremely sub and reflecting surface relative position in location.

Dielectric-slab 6 and signal reflex plate 7 adopt perforation plug-in mounting with ground connection base plate 4 and ensure that dimension angle is correct with ground connection base plate 4 welding manner respectively by conducting strip 5 and conducting reflective face 3.

In addition, as shown in Figure 3 and Figure 4, the bottom of dielectric-slab 6 can have groove 8, makes the position at groove 8 place, and dielectric-slab 6 and base plate 4 exist certain intervals.By base plate 4 and other relevant structures and the external world are fixed, directional antenna according to the present invention can be arranged on roof, wall and other fixtures.And the groove 8 between dielectric-slab 6 and base plate 4 can hold devices such as fixing this antenna nut used, bolt.

It should be noted that, although shown in the drawings of the shape of dielectric-slab and signal reflex plate, (dielectric-slab is similar trapezoidal shape, signal reflex plate is rectangle), and show the first shape that extremely son and second is extremely sub and the fixed position on dielectric-slab, above also illustrate that first extremely son and second extremely son can be dipole, but above explanation is only for enumerating, in actual applications, the shape of dielectric-slab and signal reflex plate can be other shapes.First extremely sub and second extremely sub other positions that can be arranged on dielectric-slab, and its shape also can adopt other existing shapes multiple.In addition, in other application scenarioss, first extremely son and/or second extremely son also can be monopole.

In sum, the present invention proposes the directional antenna of improvement, this antenna can be fixed by ceiling or other modes, and can be applied to several scenes (such as, can be used for ground is narrow long type indoor environment, can be subway station inside corridor passageway).Inner antenna design adopts cross-polarized two different frequency dipoles, by increasing a reflecting surface, original omnidirectional dipole antenna being become directed, so just can find out the suitable yield value of antenna and antenna pattern and lobe width thereof by the distance adjusted between dipole and reflecting surface and base plate.

Fig. 5 to Fig. 7 illustrates the omnidirectional antenna be arranged in train station subsystem.This antenna can be applied to the several scenes such as hall (such as, can be the waiting halls etc. of the vehicles), and can realize on a large scale, omnibearing covering.

As shown in Figures 5 to 7, this antenna comprises base plate 17 and first medium plate 110 arranged in a crossed manner and second medium plate 111, first medium plate 110 and second medium plate 111 are placed on base plate 17, first medium plate 110 has for be operated in the first frequency range multiple first extremely sub, second medium plate 111 has for being operated at least one of the second frequency range second extremely sub, multiple first extremely in son one first extremely son and other the first extremely sub polarised directions different (being described in detail in Examples below).In one embodiment, second extremely son quantity be multiple, now, the polarised direction different (being described in detail in Examples below) of one of them the second extremely son and other the second extremely son, the multiple first extremely son and each extremely sub feedback point that can have for being connected feeder line in multiple second extremely son.

Under normal circumstances, in order to ensure higher isolation, the intersecting angle of first medium plate and second medium plate can be 90 degree, when the antenna isolation of two frequency ranges requires lower, can reduce this angle, such as, can be that 45 degree of-90 degree intersects between two dielectric-slabs.

The quantity of first extremely sub (namely above-mentioned multiple first is extremely sub) is three, and, one of them extremely son be horizontal polarization extremely son (as shown in Figure 5 and Figure 6 first extremely son 11), two extremely son be perpendicular polarization extremely son (as shown in Figure 5 and Figure 6 first extremely son 12 and 13), the first horizontal polarization extremely in son 11 extremely son is arranged at two perpendicular polarizations extremely between son (12 and 13).

In one embodiment, the first horizontal polarization extremely in son extremely son 11 be dipole, and first two perpendicular polarizations extremely in son 12 and 13 are extremely monopole.

Further, the first horizontal polarization extremely in son extremely son 11 be the half wavelength dipole of corresponding first frequency range.First perpendicular polarization extremely in son extremely son 12 and 13 is monopole, and length is between 1/6th wavelength to three/mono-wavelength electromagnetic corresponding to the first frequency range, preferred quarter-wave.Further, the first distance of horizontal polarization extremely between son 11 and base plate 17 extremely in son is greater than electromagnetic 1/5th wavelength corresponding to the first frequency range, is preferably greater than quarter-wave.

In another embodiment, extremely son 11 and perpendicular polarization extremely sub 12 and 13 can be dipole to horizontal polarization.In another embodiment, extremely son 11 and perpendicular polarization extremely sub 12 and 13 can be monopole to horizontal polarization.In another embodiment, horizontal polarization extremely son 11 be monopole, sub 12 and 13 can be extremely dipole with perpendicular polarization.

In addition, in one embodiment, as shown in figure 5 and figure 7, the quantity of second extremely sub (namely above-mentioned multiple second is extremely sub) is three (the extremely sons 14,15 and 16 as shown in Fig. 5 and Fig. 7), and, one of them is perpendicular polarization extremely son (extremely son 14 as best shown in figures 5 and 7), two other is horizontal polarization extremely son (as best shown in figures 5 and 7 extremely son 15 and 16), and the second perpendicular polarization extremely in son extremely son 14 is arranged at two horizontal polarizations extremely between son (15 and 16).

Further, the second perpendicular polarization extremely in son extremely son 14 be dipole, and second two horizontal polarizations extremely in son 15 and 16 are extremely dipole.Further, the second perpendicular polarization extremely in son extremely son 14 be the half wavelength dipole of corresponding second frequency range.In addition, the second distance of perpendicular polarization extremely between son 14 and base plate 17 extremely in son is greater than the half-wavelength of the second frequency range.Further, the second horizontal polarization extremely in son extremely son (15 and 16) half wavelength dipole that is corresponding second frequency range.In addition, the second distance of horizontal polarization extremely between son (15 and 16) and base plate 17 extremely in son is greater than 1/5th wavelength of the second frequency range, is preferably greater than quarter-wave.

In another embodiment, extremely son 14 and perpendicular polarization extremely sub 15 and 16 can be monopole to horizontal polarization.In another embodiment, horizontal polarization extremely son 14 with perpendicular polarization extremely son 15 and 16 in part extremely son can be monopole.

In one embodiment, the bottom of first medium plate 110 is provided with opening 112 (as shown in Fig. 6), and second medium plate 111 is not provided with opening, and second medium plate 111 is from the below insertion opening of first medium plate 110.

In another embodiment, first medium plate 110 is not provided with opening, and the top of second medium plate 111 is provided with opening (not shown), first medium plate 110 inserts the opening (not shown) of second medium plate 111 from the top of second medium plate 111.

In another embodiment, the bottom of first medium plate 110 is provided with the first opening 112, and the top of second medium plate 111 is provided with the second opening (not shown), and the first opening 112 is engaged with the second opening (not shown).

In addition, the bottom of first medium plate 110 and second medium plate 111 is all coated with conducting strip (such as, can be sheet metal), wherein, there is below first medium plate 110 conducting strip 18, there is below second medium plate 111 conducting strip 19, and first medium plate 110 and second medium plate 111 are welded to connect by the conducting strip of bottom and base plate 17.

In addition, in one embodiment of the invention, multiple first extremely son and multiple second is extremely sub for being fixed on the conductive structure of dielectric-slab, such as, can be sheet metal construction.

Further, first medium plate 110 and second medium plate 111 pass through perforation plug-in mounting to base plate 17.In other embodiments, the first and second dielectric-slabs can also be fixed to base plate 17 by other modes such as buckle, bolt.

In addition, with reference to Fig. 5, base plate 17 can be circular.In other scenes, according to the restriction of the factor such as installation site and antenna cover, base plate 17 also can be rectangle, triangle or other shapes.

In addition, as shown in Figure 6 and Figure 7, the bottom of first medium plate 110 can have groove 113, the bottom of second medium plate 111 can have groove 114, makes first medium plate 110 can there is certain intervals in the position at groove 114 place and base plate 17 in the position at groove 113 place and second medium plate 111.By base plate 17 and other relevant structures and the external world are fixed, omnidirectional antenna according to the present invention can be arranged on roof, wall and other fixtures.And the position at the groove 113 between first medium plate 110 and base plate 17 and the groove between second medium plate 111 and base plate 17 114 place can hold immobilising devices such as fixing this antenna nut used, bolt.

In addition, shown in the drawings of the shape (dielectric-slab is similar trapezoidal shape) of first medium plate 110 and second medium plate 111, and show above-mentioned multiple extremely shape of son and the fixed position on dielectric-slab.But above explanation is only for enumerating, and in actual applications, dielectric-slab can be other shapes.Above-mentioned multiple extremely son can be arranged on other positions of dielectric-slab, and its shape also can adopt other existing shapes multiple.

In one embodiment, the first frequency range is 1.8 ~ 3GHz, and the second frequency range is 4.8 ~ 6GHz.Further, the first frequency range is 2.4GHz-2.5GHz, and the second frequency range is 5.15GHz-5.85GHz.In one embodiment, the first frequency range is 2GHz-2.6GHz, and the second frequency range is 4.9GHz-6GHz.In other embodiments, the first and second frequency ranges of Antenna Operation also can be other frequency ranges.In addition, in above-described embodiment, first extremely son and second extremely son have three respectively, obvious first quantity that extremely son and second is extremely sub more than three or can be less than three, as long as each first extremely son polarised direction incomplete same, when second extremely son has multiple, the polarised direction that also preferably difference second is extremely sub is incomplete same, thus improves isolation.

Continue with reference to Fig. 5, the present invention adopt brand-new layout by 3 2.4GHz antennas extremely son and 3 5.8GHz antennas extremely son intersect be in staggered distribution and the antenna of 3 same frequencys extremely son adopt different polarization mode and structure to ensure the isolation of antenna extremely between son, this layout type maximumly can realize client can receive the signal of more than 2 same frequencys thus raising wireless transmission speed in any direction.

It should be noted that, herein main for first of 3 correspondence first frequency ranges extremely son and 3 correspondence second frequency ranges second extremely subly describe 3 × 3MiMo omnidirectional antenna, but, corresponding to each frequency range, the extremely son of other quantity can also be set, thus form the antenna of the multiple scales such as 3 × 3 antennas, 2 × 3 antennas, 3 × 2 antennas, 4 × 4 antennas, 3 × 4 antennas, 4 × 3 antennas, 5 × 5 antennas, its principle and above-mentioned principle similar, and the problem that omnidirectional receives can be reached equally, avoid the interference between antenna.

Be that example is described below by 3 × 3MiMo omnidirectional antenna.This antenna can be ceiling mount antenna, also can be the antenna be fixed by other means.Wherein mainly comprise Vertically Polarized Dipole 14, two 5.15 ~ 5.85GHz horizontal polarization dipoles 15 and 16 of perpendicular polarization monopole 12 and 13,5.15 ~ 5.85GHz and the base plate 17 of a ground connection of horizontal polarization dipole 11, two 2.4 ~ 2.5GHz of a 2.4 ~ 2.5GHz.It is 2.4 ~ 2.5GHz and 5.15 ~ 5.85GHz, two frequency ranges that whole antenna is designed to frequency, and carries out feed by 6 feeder lines, an extremely sub corresponding feeder line (each extremely son is connected with corresponding feeder line by respective feedback point).Wherein, horizontal polarization dipole 11 is the half wavelength dipole of corresponding frequency band 2.4 ~ 2.5GHz and its molded dimension can adjust according to design requirement.

Further, horizontal polarization dipole 11 be horizontal polarization and and the distance of base plate 17 be greater than the quarter-wave of 2.4GHz and the parameters such as both distance and position angles to change the isolation between aerial radiation direction and antenna.

In addition, perpendicular polarization monopole 12 and 13 is the quarter-wave monopole of corresponding frequency band 2.4 ~ 2.5GHz and its molded dimension can adjust according to design requirement.

Further, perpendicular polarization monopole 12 and 13 is perpendicular polarization and both parameter such as distance, relative position, angle can change isolation between aerial radiation direction and antenna.

In addition, horizontal polarization dipole 11 and perpendicular polarization monopole 12 and 13 are that cross polarization reduces mutual signal disturbing at the isolation of 2.4 ~ 2.5GHz each other to improve.

Similarly, Vertically Polarized Dipole 14 is the half wavelength dipole of corresponding frequency band 5.15 ~ 5.85GHz and its molded dimension can adjust according to design requirement.

Further, Vertically Polarized Dipole 14 is perpendicular polarization and is greater than the half-wavelength of 5GHz with base plate 17 distance.

In addition, horizontal polarization dipole 15 and 16 is the half wavelength dipole of corresponding frequency band 5.15 ~ 5.85GHz and its molded dimension can adjust according to design requirement.

Further, horizontal polarization dipole 15 and 16 is horizontal polarization and is greater than the quarter-wave of 5GHz with ground connection base plate 17 distance.

Similarly, horizontal polarization dipole 14 and horizontal polarization dipole 15 and 16 are that cross polarization reduces mutual signal disturbing at the isolation of 5.15 ~ 5.85GHz each other to improve.

In addition, all extremely sons are the Copper Foil overlayed on first medium plate or second medium plate, two angled assemblings of dielectric-slab.

Further, dielectric-slab 110 and 111 adopts perforation plug-in mounting with ground connection base plate 17 and ensures that dimension angle is correct by the mode that conducting strip 18 and 19 welds with base plate 17.

Fig. 8 to Figure 10 illustrates another omnidirectional antenna be arranged in train station subsystem.

As shown in Figure 8, this omnidirectional antenna comprises base plate 25 and first medium plate 28 arranged in a crossed manner and second medium plate 29, first medium plate 28 and second medium plate 29 are placed on base plate 25, first medium plate 28 has the one first extremely son 21 and at least one director 23,24 for being operated in the first frequency range, second medium plate 29 have for be operated in the second frequency range one second extremely son 22, first extremely son 21 with second extremely son 22 all there is feedback point for being connected feeder line.

Under normal circumstances, in order to ensure higher isolation, the intersecting angle of first medium plate and second medium plate can be 90 degree, when the antenna isolation of two frequency ranges requires lower, can reduce this angle, such as, can be become 45 degree of-90 degree to intersect between two dielectric-slabs.

Wherein, above-mentioned first extremely son 21 can be dipole or monopole.Dipole is generally half wavelength dipole, namely the electromagnetic wavelength of total length corresponding to the first frequency range about 1/2nd dipole.

Equally, second extremely son 22 also can be dipole or monopole, if dipole is half wavelength dipole, then refer to the dipole of about 1/2nd of the electromagnetic wavelength of its total length corresponding to the second frequency range.Certainly, above-mentioned first, second extremely sub 21,22 also can select the extremely sub of other types, repeats no more herein.

In addition, first extremely son 21 is different with the polarised direction of second extremely sub 22.Such as, first extremely son 21 be horizontal polarization, second sub 22 is extremely perpendicular polarization; Or, first extremely son 21 be perpendicular polarization, second sub 22 is extremely horizontal polarization.

Further, in one embodiment, at least one director 23,24 can be arranged at first extremely son 21 above, effectively to improve the quality of Signal transmissions.And in other embodiments, director can be arranged on other positions.

In the configuration shown in fig. 8, the quantity of director 23,24 is two.In other embodiments, the quantity of director can be multiple.

In addition, as shown in Figure 9 and Figure 10, the bottom of first medium plate 28 is provided with opening 210, and the top of second medium plate does not have opening, second medium plate 29 from the below insertion opening 210 of first medium plate 28, thus realize two dielectric-slabs be plugged into across one.

Alternatively, in another embodiment, the top of second medium plate 29 can be provided with opening 211, and the bottom of first medium plate does not have opening, and first medium plate 28 inserts this opening 211 from the top of second medium plate 29.

Alternatively, in an embodiment again, the bottom of first medium plate 28 is provided with the first opening 210, and the top of second medium plate 29 is provided with the second opening 211, first opening 210 and is engaged with the second opening 211.

In Fig. 8 to Figure 10, the position of opening is positioned at each dielectric-slab close to position in the middle, and in fact, this opening can be arranged at other positions of place dielectric-slab, and its degree of depth and shape can change according to actual needs.

In addition, in actual applications, by means of other modes beyond opening, first medium plate and second medium plate intersection plug-in mounting also can be fixed, do not enumerate at this.

And the bottom local complexity of first medium plate 28 has conducting strip 27 (such as, can be sheet metal, and the bottom of second medium plate 29 is provided with sheet metal 26, and conducting strip 26,27 and base plate 25 to be welded to connect.

First extremely son 21 and second extremely son is 22 for being fixed on the conductive structure of dielectric-slab, the conductive structure shown in figure is sheet metal paper tinsel.

As shown in the figure, director 23,24 is for being fixed on the conductor lines of first medium plate 28, and its length and direction are all according to this design of needs of practical application scene.

Further, first medium plate 28 and second medium plate 29 to base plate 25, ensure that dimension angle is correct by perforation plug-in mounting.

Wherein, in one embodiment, base plate 25 can be circular, and in other embodiments, base plate can be other shapes such as rectangle, triangle, specifically can carry out changing and adjusting according to conditions such as actual installation positions.

Alternatively, described first frequency range is 1.8GHz-3GHz, and the second frequency range is 4.8GHz-6GHz.

In one embodiment, alternatively, the first frequency range is 2.4GHz-2.5GHz.Alternatively, the second frequency range is 5.15GHz-5.85GHz.In one embodiment, the first frequency range is 2GHz-2.6GHz, and the second frequency range is 4.9GHz-6GHz.

In a preferred embodiment, first medium plate hight is in second medium plate, and director position is extremely sub higher than first, and the first signal transmitting and receiving that extremely son and second is extremely sub can be made further all effectively to be improved.

In addition, bottom as Fig. 9 first medium plate 28 can have groove 212, make the position at groove 212 place, there is certain intervals in first medium plate 28 and base plate 25, the feeder line of the first extremely son 21 and second extremely son 22 goes out to cross at groove 212 and wears in public from the hole of base plate 25 correspondence position, compacter in structure.By base plate 25 and other relevant structures and the external world are fixed, directional antenna according to the present invention can be arranged on roof, wall and other fixtures.And the groove 212 between first medium plate 28 and base plate 25 can hold devices such as fixing this antenna nut used, bolt.In addition, shown in the drawings of the shape (dielectric-slab is similar trapezoidal shape) of dielectric-slab, and show the first extremely son 21 and second extremely son shape of the 22 and fixed positions on dielectric-slab, above also illustrate that first extremely son 21 and second sub 22 can be extremely dipole.But above explanation is only for enumerating, and in actual applications, the shape of dielectric-slab can be other shapes.First extremely son 21 and second extremely sub 22 can be arranged on other positions of dielectric-slab, and its shape also can adopt other existing shapes multiple.In addition, in other application scenarioss, first extremely son 21 and/or second extremely son 22 also can be monopole.

In addition, the bottom as Figure 10 second medium plate 29 can have groove 213, makes the position at groove 213 place, and second medium plate 29 and base plate 25 exist certain intervals.By base plate 25 and other relevant structures and the external world are fixed, directional antenna according to the present invention can be arranged on roof, wall and other fixtures.And the groove 213 between second medium plate 29 and base plate 25 can hold devices such as fixing this antenna nut used, bolt.

According to the omnidirectional antenna of the embodiment of the present invention, may be used for the indoor environment that floors ceilings is lower, such as, can be applicable to the platform (can be the platform in subway station, railway station) in the traffic system of fixed line, and railway platform one end is very long and the other end is shorter.Certainly, omnidirectional antenna of the present invention can also be applied in other environment and scene.

In addition, in an example, WLAN dual-band and dual-feed all-around top absorbing antenna can be included but not limited to according to omnidirectional antenna of the present invention, will be specifically described in this, as example below.

In described example, mainly comprise the dipole of a 2.4 ~ 2.5GHz, the dipole of a 5.15 ~ 5.85GHz, a base plate and two directors according to omnidirectional antenna of the present invention.Whole antenna is designed to two frequency ranges (2.4 ~ 2.5GHz and 5.15 ~ 5.85GHz) and carries out feed by two feeder lines, a corresponding feeder line of frequency range.

Two dipoles are the half wavelength dipole of corresponding frequency band (2.4 ~ 2.5GHz and 5.15 ~ 5.85GHz), and can adjust moulding and the size of extremely son according to design requirement.In addition, the dipole of two different frequency ranges is that cross polarization is to increase by two isolations (both polarised directions are different) extremely between son.

In addition, the director shown in figure above dipole, and can adjust the parameter such as number, moulding, size, position, angle of director according to design requirement, thus changes radiation direction and the radiation scope of antenna.

In addition, dipole and director can adopt the design covering copper at dielectric-slab, are convenient to the relative position of fixed pole and director.

In order to realize two extremely sub-cross polarizations, two dielectric-slabs are crossed as certain angle assembling (such as, 90 degree).

Inner antenna is cross-polarized two different frequency dipoles, first find out the suitable yield value of antenna and antenna pattern lobe width by the distance between adjustment dipole and antenna ground base plate, then increase dipole upper end and increase the metal director of two suppressing antenna maximum gains thus change aerial radiation direction and radiation scope.

In addition, shown in the drawings of the shape (dielectric-slab is similar trapezoidal shape) of dielectric-slab, and show the first extremely son 21 and second extremely son shape of the 22 and fixed positions on dielectric-slab, above also illustrate that first extremely son 21 and second sub 22 can be extremely dipole.But above explanation is only for enumerating, and in actual applications, the shape of dielectric-slab can be other shapes.First extremely son 21 and second extremely sub 22 can be arranged on other positions of dielectric-slab, and its shape also can adopt other existing shapes multiple.In addition, in other application scenarioss, first extremely son 21 and/or second extremely son 22 also can be monopole.

Next, to car over the ground subsystem be described in detail.

With reference to Figure 11, the terminal equipment in the vehicles of working line of the present invention and the system of external network communication comprise: first communication module 32, and arrange on a vehicle, institute's first communication module 32 comprises compartment bridge; And second communication module 34, comprise multiple car bridge over the ground, multiple car over the ground bridge is provided at predetermined intervals on the working line of the vehicles, utilizes communication network carry out communicating and communicated with external network by second communication module 34 between first communication module 32 with second communication module 34.

With reference to Figure 11, also comprise switch at first communication module 32, switch is connected with compartment bridging communication, and is provided for multiple access points of network service for terminal equipment.

Preferably, bridge neighboring switch in compartment is arranged.In addition, on the vehicles, the quantity of access point is equal to or greater than the number of carriages that the vehicles have.In other words, suppose that vehicles have 6 joint compartments, then each the joint compartment on these vehicles arranges one or more access point.

In addition, compartment bridge is provided with the first directional antenna, and multiple car over the ground bridge is provided with the second directional antenna.Second directional antenna is oriented relative with the direction of the first directional antenna, accesses the maximum antenna of signal strength signal intensity and carry out radio communication in the first directional antenna and the second directional antenna.

Figure 12 to Figure 26 is the diagram of the first directional antenna be arranged in compartment bridge.

With reference to Figure 12 to Figure 16, this directional antenna has the first laminate 41 and the second laminate 42, first laminate 41 is fixedly connected with at each interval with the second laminate 42.Wherein, the first laminate 41 is provided with the feed 43 of at least one emitting electromagnetic wave; Second laminate 42 is provided with at least one antenna oscillator 44.Further, the first laminate 41 corresponds to the position of each feed 43, be respectively equipped with the gap 45 passed for electromagnetic wave.Preferably, this electromagnetic tranmitting frequency can be 1.8GHz ~ 12GHz; More preferably, this electromagnetic tranmitting frequency can be 4.9GHz ~ 6GHz, or 2GHz ~ 2.6GHz; Further, this electromagnetic tranmitting frequency can be 5.8GHz or 2.4GHz.Should be appreciated that this structure makes antenna oscillator 44 be coupled correspondingly with feed 43 by the above-mentioned electromagnetic wave passed from gap 45.

In this antenna, because it has the first laminate 41 and the second laminate 42, owing to being provided with the feed 43 of at least one emitting electromagnetic wave on the first laminate 41, the gap 45 passed for this electromagnetic wave is formed in the position that the first laminate 41 is corresponding with each feed 43, and on the second laminate 42, be provided with the antenna oscillator 44 be coupled with the electromagnetic wave one_to_one corresponding through gap 45, therefore, this one_to_one corresponding is arranged and the mode of one_to_one corresponding coupling can realize optimizing the covering performance of antenna.

First laminate 41 has the second face 47 of first surface 46 towards the second laminate 42 and the second laminate 42 dorsad, wherein, the second face 47 is provided with the first merit parallel circuit 48 and the second merit parallel circuit 49 providing feed 43.Preferably, with the longitudinal axis in the second face 47 for datum axis L, the first merit parallel circuit 48 and the second merit parallel circuit 49 relative to the both sides of this datum axis L for symmetry axis becomes mirror-image arrangement.Further, the first merit parallel circuit 48 and the second merit parallel circuit 49 have respectively: signal input port 410 and at least one signal feed 411, are electrically connected between signal feed 411 and signal input port 410.In addition, antenna oscillator 44 can be formed on the face of the first laminate 41 dorsad of the second laminate 42.As an optional embodiment, the first laminate 41 and the second laminate 42 can be printed circuit board (PCB).

In one preferably embodiment, each other in mirror image between the signal feed 411 of the first merit parallel circuit 48 and the signal feed 411 of the second merit parallel circuit 49.Wherein, two signal feed 411 of mirror image form a feed 43 each other.Feed 43 realizes signal I/O for being connected with coaxial feeder.Preferably, in the first embodiment of the present invention, the number of feed 43 is four.But any amount of feed 43 is all fine, such as, can as shown in the second embodiment of the present invention, the quantity of feed 3 is two.But the present invention is not limited thereto.

Because all signal feed of the first merit parallel circuit and datum axis form positive 30 degree ~ 60 degree angles, all signal feed of the second merit parallel circuit and datum axis form negative 30 degree ~ 60 degree angles, this arrangement can optimize the covering performance of antenna further, makes its covering performance optimum.

Further, in a preferred embodiment, the first laminate 41 and the second laminate 42 are flat board, and parallel to each other, now, can improve the coupling performance between antenna oscillator 44 and merit parallel circuit.

In addition, the wavelength being spaced apart 0.4 ~ 1 electromagnetic wave (frequency can be any one in said frequencies) between each feed 43.Preferably, 0.6 ~ 0.9 electromagnetic wavelength is spaced apart between each feed 43.

Particularly, on the first surface 46 of the first laminate 41, be provided with the conductive layer covering whole first surface 46, the hollow out pore-forming respectively of the position corresponding with each signal feed 411 on conductive layer, each hole forms a gap 45.Preferably, the quantity in gap 45 is equal with the quantity of all signal feed 411.In the present invention, electromagnetic wave only can from gap 45 through and be coupled with feed and penetrate, and the electromagnetic wave propagated on conductive layer will be reflected by conductive layer, so can realize the orientation to Electromagnetic Wave Propagation direction.

In addition, the angle between the length direction of the projection of gap 45 on first surface 46 and corresponding signal feed 411 is greater than 0 ° and is less than 180 °, and the angle namely between the length direction in gap and corresponding signal feed is greater than 0 ° and is less than 180 °.In a preferred embodiment, this angle can be 45 degree ~ 135 degree, and more preferably, this angle can be 90 degree.。When angle is 90 °, that is, the projection of gap 45 on first surface 46 is perpendicular to the signal feed 411 of correspondence, therefore, when the two is arranged in such a way, the coupling performance between feed 43 and antenna oscillator 44 can be made to improve.

Should be appreciated that the length direction in gap 45 described herein is the direction on the long limit of rectangular slot 45 as shown in the figure, and when gap 45 is square, its length direction is the direction that rectangle duration limit bearing of trend is identical with gap 45.

Should be appreciated that, as long as the angle between the length direction of the projection of gap 45 on first surface 46 and corresponding signal feed 411 is between 0 °-180 °, and 90 ° orthogonal be most preferred mode, the present invention is not limited thereto.

Preferably, gap 45 can be formed by etching conductive layer, and etching mode can be electrolytic etching, chemical etching etc.

In one embodiment, antenna oscillator 44 is the conducting strip formed with etching mode, and alternatively, this conducting strip can be the polygon facet formed with etching mode.Preferably, antenna oscillator 44 can be conducting strip, and the wherein projection of diagonal on the first laminate 41 of conducting strip is parallel with the datum axis L of the first laminate 41.In other words, the angle of the conducting strip wherein projection on the first laminate 41 of limit and datum axis L is 45 °.Should be appreciated that the shape of antenna oscillator 44 can be the various shapes such as rhombus, rectangle, regular pentagon.

In addition, preferably, the material of above-mentioned conductive layer and conducting strip is metal or alloy or electrically conductive ink.Metal material can be copper, silver etc.

Be fixedly connected with by insulating part between first laminate 41 and the second laminate 42.In addition, the distance between the first laminate 41 and the second laminate 42 is between 0.1mm-10mm, and preferably, distance is 1mm ~ 3mm, and the most preferably, this distance can be 2.6mm.Because when this distance, the coupling performance between antenna oscillator 44 and feed 43 is optimum.

In addition, the first laminate 41 is also provided with fixing hole 412, antenna can by being fixed in above-mentioned traffic system through the insulated fasteners of this fixing hole 412.Because antenna of the present invention can be platy structure, so it is more suitable for applying in the environment jolted, fixing compared to prior art plate antenna more steadily firm, be comparatively applicable to being applied in the traffic system of fixed line, this can be implemented in above-mentioned traffic system and does WIFI wireless coverage.

Ac signal inputs from the signal input port 410 be arranged on the second face 47, then feed 43 place is transferred to, owing to corresponding to the position of each feed 43 on the first laminate 41, form the gap 45 passed for electromagnetic wave respectively, so electromagnetic wave directionally penetrates from gap 45, then pass the electromagnetic wave in gap 45 and be delivered to antenna oscillator 44, antenna oscillator 44 is coupled correspondingly with feed 43.Further, electromagnetic wave is launched from antenna oscillator 44, thus carries out direction propagation to electromagnetic wave.

Figure 17 to Figure 21 is the schematic diagram that the another embodiment that can be used for above-mentioned directional antenna is shown, wherein, represents with identical reference number with the like of the antenna of Figure 12 to Figure 16, and omits the description to these likes.The quantity of the feed 43 of this embodiment is two, and further, the quantity in bridge antenna oscillator 44 and gap 45 is also two.All the other parts do not described are all same as the previously described embodiments.

Figure 22 to Figure 26 is the schematic diagram of the another embodiment that directional antenna is shown, wherein, represents, and omit the description to these likes here with the like of the antenna of Figure 12 to Figure 16 with identical reference number.

With reference to Figure 22-26, this bridge antenna has the first laminate 41 and the second laminate 42, first laminate 41 is fixedly connected with at each interval with the second laminate 42, but the first laminate 41 is formed with the feed 43 of at least one emitting electromagnetic wave (preferably, the frequency of feed 43 emitting electromagnetic wave is arbitrary frequency within the scope of 5 ~ 5.9GHz), and on the first laminate 41, correspond to the position of each feed 43, be formed with the gap 45 passed for electromagnetic wave respectively.Should be appreciated that, this structure makes bridge antenna oscillator 44 be coupled correspondingly with feed 43 by the above-mentioned electromagnetic wave passed from gap 45.

Owing to being formed with the feed 43 of at least one emitting electromagnetic wave on the first laminate 41, the gap 45 passed for electromagnetic wave is formed in the position that the first laminate 41 is corresponding with each feed 43, and on the first laminate 41, be formed with the bridge antenna oscillator 44 be coupled with the electromagnetic wave one_to_one corresponding through each gap 45, therefore, this one_to_one corresponding is arranged and the mode of one_to_one corresponding coupling can realize optimizing the covering performance of bridge antenna.

Preferably, 0.4-1 electromagnetic wavelength is spaced apart between each feed 43.Preferably, 0.8 electromagnetic wavelength is spaced apart between each feed 43.

In the present invention, due on the position corresponding with all first signal feed 411 of conductive layer, be formed with the hole that first surface 46 is exposed from the side being provided with conductive layer of the first laminate 41 respectively, further hole forms described gap 45, therefore, frequency is that the electromagnetic wave of 5 ~ 5.9GHz only can penetrate from gap 45, and cannot penetrate from conductive layer, so can realize the orientation to Electromagnetic Wave Propagation direction.

Further, when bridge antenna oscillator 44 is conductive layer, its length of side is: form 3/1 to four/4ths of the electromagnetic wavelength be coupled with bridge antenna oscillator 44.In a preferred embodiment, the length of side is form the electromagnetic wavelength be coupled with bridge antenna oscillator 44 0.5 times.

In addition, the metal forming covering whole described first surface 46 and the conductive layer forming described bridge antenna oscillator 44 are Alloy Foil.Preferably, Alloy Foil is Copper Foil or silver foil.

In addition, the distance between the first laminate 41 and the second laminate 42 is between 0mm-10mm.

Ac signal inputs from the signal input port 410 be arranged on the second face 47, then feed 43 place is transferred to, owing to corresponding to the position of each feed 43 on the first laminate 41, form the gap 45 passed for electromagnetic wave respectively, so electromagnetic wave directionally penetrates from gap 45, then the electromagnetic wave through gap 45 is delivered to bridge antenna oscillator 44, and bridge antenna oscillator 44 is coupled correspondingly with feed 43.Further, electromagnetic wave is launched from bridge antenna oscillator 44, thus carries out leading and radiated electromagnetic wave.

Compartment bridge can be arranged on any part in compartment, but is preferably arranged on the front portion in compartment.

In addition, second communication module 34 is such as connected to the switch at the platform place being arranged at the vehicles by optical fiber or networking cable, switch is such as connected to control centre by optical fiber or networking cable, thus the communication of the terminal equipment realized in compartment and external network.Certainly, other connected modes are also fine.

Next, second communication module 34 is described in detail.

Preferably, multiple car over the ground bridge be arranged on the right side of vehicles direction of advance along working line.

In addition, car bridge over the ground can be differently set according to the difference of the type of the vehicles.

Such as, if when traffic system is subway, seabed tunnel system etc., multiple car bridge over the ground can be arranged on the sidewall in tunnel or roof.If traffic system be light rail, working line bus system time, working line can be provided with multiple post, bar etc., then multiple car bridge is over the ground set on these posts or bar.

In addition, the interval of car over the ground between bridge is determined according to network throughput.This interval can be set to various value, such as 100 meters, 200 meters, 300 meters, 400 meters, 500 meters etc., preferred predetermined space is 100 meters to 800 meters, is more preferably 200 meters to 400 meters.

Describe in detail referring to Figure 27 to Figure 30 and be arranged on second directional antenna of car over the ground in bridge.

With reference to Figure 27 to Figure 30, this directional antenna comprises: reflector 54 and at least one antenna unit array (being an antenna unit array in the present embodiment).All antenna unit arrays are all arranged on the reflecting surface side of reflector 54.If two of reflector opposing faces are reflecting surface, take antenna unit array as minimum unit, it can be arranged on the either side of both sides reflecting surface.

Can find out in figure 27, antenna unit array comprise multiple there is the first working frequency range the first antenna element 52 and at least one there is the second antenna element 56 of the second working frequency range, described multiple first antenna element 52 surrounds one week, and described second antenna element 56 encloses among described multiple first antenna element 52.In the present embodiment, each antenna unit array is made up of three first antenna elements 52 with the first working frequency range and second antenna element 56 with the second working frequency range.Wherein, the second working frequency range is less than the first working frequency range.Such as the first working frequency range is 5.0-5.9GHz, and the second working frequency range is 2.4-2.5GHz.1.8-3GHz。Further preferably, the first working frequency range can be 5GHz, and now in fact the first antenna element 52 can be the bridge antenna of 5GHz, and the second working frequency range is 2.4GHz, and now in fact the second antenna element 56 can be the bridge antenna of 2.4GHz.First working frequency range is 5.8GHz, and the second working frequency range is 2.4GHz.First working frequency range and the second working frequency range are the frequency range different being each other selected from 1.8 ~ 12G.

In conjunction with Figure 27 and Figure 28, can find out, each first antenna element 52 is made up of the medium substrate 521 on the reflecting surface side being vertically fixed on reflector 54 and the main element 522 be formed on medium substrate 521 and director 529 (shown in Figure 29).Similarly, the second antenna element 56 is made up of the medium substrate 561 on the reflecting surface side being vertically fixed on reflector 54 and the main element 562 and 52 director 69 (shown in Figure 30) be formed on medium substrate 561.

Further, medium substrate 521 position each other of these three the first antenna elements is shown in Figure 28: these three medium substrates 521 have a middle vertical plane vertical with reflecting surface separately, then three middle vertical planes of three medium substrates 521 intersect at a line, now, the angle often described in adjacent two between middle vertical plane is 120 °; The medium substrate 561 of the second antenna element 56 is arranged to: perpendicular to one of the medium substrate 521 of these three the first antenna elements.

As a kind of optimal way, can also be as shown in figure 28, by another two medium substrates (except that medium substrate vertical with the medium substrate 561 of the second antenna element 56) in the medium substrate 521 of these three the first antenna elements 52, relative to medium substrate 561 mirror-image arrangement of the second antenna element 56.

Continue see Figure 28, as mentioned above 120 ° of these three medium substrates 521 spaced apart and be isolated each other perpendicular to the medium substrate 561 of one of them medium substrate 521 each other.Such as, continue see Figure 28, the medium substrate 521 of these three the first antenna elements 52 and the projection of medium substrate 561 on the reflecting surface of reflector 54 of the second antenna element 56 are spaced apart from each other.

Further, in order to the angle from regular triangular prism, describe the most preferably mode of antenna unit array in inventive antenna, first define as follows.That is, the first antenna element 52 has with each medium substrate of the second antenna element 56: in order to arrange main element and the lateral surface of director, the medial surface contrary with this lateral surface, with the mid-plane all parallel and equidistant with medial surface with this lateral surface.Based on above-mentioned medial surface, lateral surface and the definition being clipped in the mid-plane between interior lateral surface, continue see Figure 29, one of an inventive antenna antenna unit array can be set to: the two opposite sides elongated surfaces of the respective mid-plane of the medium substrate 521 of described three the first antenna elements intersects formation regular triangular prism, and the mid-plane of the medium substrate 561 of the second antenna element is positioned on an equidistant point of this regular triangular prism.

Continue see Figure 29, when the medium substrate 521 of three the first antenna elements and the medium substrate 561 of the second antenna element are spaced apart from each other, the medium substrate 521 of three the first antenna elements separately in medial surface every two medial surfaces central point between air line distance in the scope of 30-40mm time, inventive antenna has good isolation.

See Figure 29 and Figure 30, main elements 522,562 all in the present invention and director 529,569 are wire, but not the metal tube of the Yagi antenna of prior art.These plain conductors can be any one in copper conductor, aluminum conductor or silver-colored wire etc.Further, main element 222,562 and director 529,569 can be same conductor materials.

Particularly, see the first antenna element 52 of shown in Figure 29, reflector 54 and director 529 lay respectively at the two opposite sides of main element 522 along the exterior normal direction of reflecting surface.Position relationship between main element 222 and director 529 is set to: the exterior normal direction along the reflecting surface perpendicular to reflector 54 is arranged successively away from the reflecting surface of reflector 54.Each main element 522 is made up of spaced apart and the first wire 523 on the same line and the second wire 525, and the director 529 of the first antenna element 52 is made up of at least one yi word pattern wire 527.In fact, for first antenna element, yi word pattern wire 527 can have 2-16 bar, and wherein 5 is preferred.Every bar yi word pattern wire 527 is all parallel to the first wire 523 and the second wire 525 in same antenna unit, and is all arranged in the same side of this same antenna unit main element 522.

Particularly, see the second antenna element 56 shown in Figure 30, the position relationship between main element 562 and director 569 is set to: arrange successively along the reflecting surface away from reflector 54.Each main element 562 is made up of spaced apart and the first wire 562 on the same line and the second wire 565, and the director 569 of the second antenna element 56 is made up of at least one yi word pattern wire 567.In fact, for second antenna element, yi word pattern wire 567 can have 2-16 bar, and wherein, when in the first antenna element 52, yi word pattern wire is 5, in the second antenna element, yi word pattern wire is preferably 3.Every bar yi word pattern wire 567 is all parallel to the first wire 563 and the second wire 565 in same antenna unit, and is all arranged in the same side of this same antenna unit main element 562.

Can find out from Figure 29 and Figure 30, in same antenna unit, all yi word pattern wires are along the direction perpendicular to the first wire and the second wire in this same antenna unit, and away from the first wire and the second wire and successively compartment of terrain is arranged.

As a kind of optimal way, in order to corresponding with " working frequency range of the first antenna element is greater than the operating frequency of the second antenna element ", the quantity of the yi word pattern wire 527 of the formation director 529 in the first antenna element 52 can be greater than the quantity of the yi word pattern wire 567 of the formation director 569 in the second antenna element 56.

In a kind of optimal way, as shown in figure 29, the material of every bar yi word pattern wire 527 in the first antenna element 52, length, width, thickness are all identical; And the total length of main element 522 in the first antenna element 52, is greater than the length of every bar yi word pattern wire 527 in the first antenna element 52.As shown in Figure 20, the material of every bar yi word pattern wire 567 in second antenna element 56, length, width, thickness are all identical, the total length of main element 562 in second antenna element 56, is greater than the length of yi word pattern wire 567 described in every bar in the second antenna element 56.

It can also be seen that from Figure 29, in the first antenna element 52, the perpendicular bisector perpendicular to its length direction of every bar yi word pattern wire 527 all on the same line, and this perpendicular bisector is all through the center of the total length of main element in the first antenna element 52.As can be seen from Figure 20 equally also, the perpendicular bisector perpendicular to its length direction of every bar yi word pattern wire 567 in second antenna element 56, all on the same line, and this perpendicular bisector also all through the center of the total length of main element 562 in the second antenna element 56.

Composition graphs 27-Figure 30, the medium substrate 521 of these three the first antenna elements 52 and the medium substrate 561 of the second antenna element 56 can perpendicular to the reflectings surface of reflector 54.Such as, medium substrate 521 and medium substrate 561 are rectangle, and its length direction is perpendicular to the reflecting surface of reflector 54.

In addition, the medium substrate 521 in the present invention in the first antenna element and the medium substrate 561 in the second antenna element are printed circuit board (PCB).Such as, medium substrate 521 and 561 can be made up of FR4 material, or the baseplate material that other existing antennas adopt is made.Form corresponding director and main element as on respective media substrate 521,561, the multiple method of prior art can be adopted.Such as, for plating conductor layer on the surface of medium substrate 521,561, then optionally etch this conductor layer to obtain corresponding yi word pattern wire and the first wire and the second wire.

As for the reflector 54 of inventive antenna.As illustrated at Figure 28, this reflector 54 can be reflecting plate, and the reflecting surface of reflecting plate is conductor reflecting surface, and namely the material of reflecting surface is conductor.Conductor reflecting surface is any one in copper reflecting surface, aluminium reflecting surface, alloy reflecting surface or silver-colored reflecting surface etc.Obviously be appreciated that all antenna unit arrays in antenna share a described conductor reflecting surface.Such as, for an antenna unit array, the medium substrate forming each antenna element of this antenna unit array is all fixed on the reflecting surface side of same reflector.Also illustrate in Figure 28, the reflecting plate of antenna is preferably circular reflector, and certain shape also can be other shapes outside circle, such as polygon etc.

Wherein, first antenna element can work alone independent of the second antenna element, and can only have single first antenna element to work alone, such as, joining in antenna as shown in Figure 27, can only have first antenna element to work at 2.4GHZ, other antenna elements do not work; Similarly, the second antenna element also can work alone independent of all first antenna elements, and such as, see in the antenna described in Figure 27, can only have the second antenna element to work under 5.8GHZ, other antenna elements do not work.

In the present invention, antenna unit array number is not limited to above-mentioned one, can be any amount, and except the number difference of antenna unit array, all the other are all aforesaid with the present invention, and to have the situation of an antenna unit array identical.For plural antenna unit array, between every two antenna unit arrays, position relationship can be determined on a case-by-case basis, and does not have particular/special requirement.In addition preferably, all antenna unit arrays all can be arranged in the side, same reflection face of reflector.

In addition, access the antenna that signal strength signal intensity is greater than-85dB in above-mentioned first directional antenna and multiple second directional antenna and carry out radio communication.

In addition, when terminal equipment is in this traffic system, when terminal equipment moves to another access point from an access point, system needs the seamless roam being realized terminal equipment by seamless roam process.Fast roaming between access point (AP) under seamless roam mentioned here comprises same Radio Access Controller (AC) and under different AC.

Referring to Figure 31 and Figure 32, the roaming between the access point under both of these case is described in detail.

Figure 31 is the structural representation of the wireless local area network (WLAN) system of present system.Can comprise Radio Access Controller 70 in this system, multiple access point, multiple access point comprises the first access point 82 and the second access point 84.

Second access point 84, for sending to Radio Access Controller by the certification of the terminal equipment received and reassociation requests.

Radio Access Controller 70, comprising: authentication checks module 701, and for when receiving certification and the reassociation requests of the terminal equipment that the second access point transmits, whether sense terminals equipment certification; Re-association indicating module 703, during for terminal equipment being detected by the first access point authentication in authentication checks module 701, what send that the second access point and terminal equipment set up re-association is indicated to the second access point.

Second access point 84, also for when receiving the second access point and setting up the instruction of re-association with movement, sets up re-association with terminal equipment.

In an alternative embodiment, the second access point 84 when detecting that the signal of the second access point is better than the signal of the first access point, receives certification and the reassociation requests of the second access point transmission at terminal equipment.

In an alternative embodiment, Radio Access Controller 70 also comprises: indicating module 705 is removed in association, for sending before the second access point 84 and terminal equipment set up the instruction of re-association at re-association indicating module 703, what send the first access point 82 and terminal equipment disassociation is indicated to the first access point 82 so that the first access point 82 and terminal equipment disassociation.

In an alternative embodiment, the first access point 82 and terminal equipment disassociation and the second access point 84 and the terminal equipment interval set up between re-association are no more than 100 milliseconds.In a preferred embodiment, the second access point and the terminal equipment interval set up between re-association is no more than 50 milliseconds.

In an alternative embodiment, Radio Access Controller 70 also comprises association and removes indicating module 705, for receive second access point 84 send successfully indicate with terminal equipment re-association after, what send the first access point and terminal equipment disassociation is indicated to the first access point 82, so that the first access point and terminal equipment disassociation.

Although indicating module 707 same labelled notations are removed in above-mentioned two associations, being construed as them is that indicating module is removed in the association realizing difference in functionality under different embodiment.

In an embodiment, Radio Access Controller 70 can also comprise authentication message distribution module 707, for sending while the second access point and terminal equipment set up the instruction of re-association at re-association indicating module 73, the authentication information of the terminal equipment of storage is sent to the second access point 84.Second access point 84, also to go forward side by side Serial Communication for utilizing authentication information and terminal equipment to set up re-association.

In another embodiment, Radio Access Controller 70 also comprises authentication message distribution module 707, for terminal equipment by the first access point first accessing WLAN time, the authentication information of the terminal equipment obtained in verification process is broadcast to Radio Access Controller centralized management under all access points.Second access point 84, also for when receiving the second access point and the instruction of re-association set up by terminal equipment, utilizing authentication information and the terminal equipment that it stores to set up weight Guan Lian and to go forward side by side Serial Communication.

Although above-mentioned two same labelled notations of authentication message distribution module 707, being construed as them is authentication message distribution modules realizing difference in functionality under different embodiment.

In an alternative embodiment, pairwise master key mark PMKID is carried in certification and reassociation requests; The authentication information of terminal equipment comprises paired main decryption key PMK that terminal equipment and the first access point negotiate and the pairwise master key corresponding with PMK identifies PMKID.

Figure 32 is the structural representation of the wireless local area network (WLAN) system of present system.This wireless local area network (WLAN) system comprises multiple Radio Access Controller, and multiple Radio Access Controller comprises the first Radio Access Controller 92 and the second Radio Access Controller 94, and each Radio Access Controller manages at least one access point.

First Radio Access Controller 92 comprises authentication information distribution module 921, for terminal equipment by first Radio Access Controller 92 manage under the first access point 82 first accessing WLAN time, the authentication information of the terminal equipment of acquisition is distributed to other Radio Access Controller in pre-configured roaming territory;

The second access point 84 under second Radio Access Controller 94 manages, for sending the certification from terminal equipment received and reassociation requests to second Radio Access Controller 94.

Whether second Radio Access Controller 94 comprises authentication checks module 941, for when receiving certification and the reassociation requests of the terminal equipment that the second access point 84 transmits, according to the authentication information sense terminals equipment certification of the terminal equipment stored; Re-association indicating module 943, during for terminal equipment being detected in authentication checks module 941 by the first access point 82 certification, what send that the second access point 84 and terminal equipment set up re-association is indicated to the second access point 84.Second access point 84 sets up re-association for the instruction and terminal equipment of setting up re-association according to the second access point and terminal equipment.In embodiments of the present invention, the authentication information of the terminal equipment of storage refers to that multiple terminal equipment is linked in the process of AC by certification, and AC can get the authentication information of these terminal equipments and store.

Although only describe the first Radio Access Controller 92 in above-described embodiment and the second Radio Access Controller 94 has different modules, but those skilled in the art are it is understood that the structure of Radio Access Controller in wireless local area network (WLAN) system is the same.Namely the first Radio Access Controller also comprises authentication checks module and re-association indicating module.Second Radio Access Controller also comprises authentication information distribution module.

In an alternative embodiment, the second Radio Access Controller 94, also for when the data message or the control information that receive terminal equipment, the data message send terminal equipment or control information send the first Radio Access Controller 92 to; And, data message or the control information of issuing terminal equipment is received from the first Radio Access Controller 92.In embodiments of the present invention, data message can be such as content of multimedia, speech data and file data etc.; Control information can be such as the control signal etc. that certification communicates with between reassociation requests, AC.

In an alternative embodiment, the second Radio Access Controller 94 also comprises the first association and removes indicating module 943, for set up re-association at transmission second access point and terminal equipment instruction before, transmission associates with the first access point the instruction removed.First Radio Access Controller 92 also comprises the second association and removes indicating module 923, for receive from the second Radio Access Controller associate with the first access point the instruction removed time, what send the first access point and terminal equipment disassociation is indicated to the first access point, so that the first access point and terminal equipment disassociation.

In an alternative embodiment, second Radio Access Controller 94 also comprises the first association and removes indicating module 943, for receive that the second access point sends successfully indicate with terminal equipment re-association after, send to associate with the first access point remove be indicated to the first wireless controller;

First Radio Access Controller 92 also comprises the second association and removes indicating module 923, is indicated to the first access point, so that the first access point and terminal equipment disassociation for what send the first access point and terminal equipment disassociation.

The loaming method off the net by the wireless local of the embodiment of the present invention and wireless local area network (WLAN) system can realize the seamless roam of terminal equipment, even and track vehicle in high speed traveling process, the roaming less than terminal equipment also experienced by terminal equipment.

In addition, the vehicles of traffic system of the present invention are in motion all the time only to its side (such as right side) receiving and transmitting signal.

Specifically, during vehicle trigger sensing unit, the vehicles are in response to the triggering result of sensing unit by being communicate to its second side to its first side transition of communications, and wherein, the first side is relative to the second side.

In one embodiment, sensing unit can be a sensing unit.

In another embodiment, sensing unit is two or more than two sensing units.When vehicle trigger two sensing units, the vehicles in response to two or the result of calculation that obtains more than the predetermined computation that the triggering result of two sensing units is carried out will to its first side and transition of communications for its second side with communicate.

In this traffic system, the angle between first direction and second direction is 0 degree to 180 degree, and more specifically, angle is 30 degree, 45 degree, 60 degree, 90 degree, 120 degree, 150 degree or 180 degree etc.Wherein, 0 degree is the first direction situation parallel with second direction, and 180 degree is the situation that first direction and second direction are contrary.

In addition, sensor setting is in the position, the starting station of the running route of the vehicles, intermediate station position and/or position, terminus.

Note, the vehicles in the present invention are aerial vehicle, marine vehicle, face, the land vehicles, such as subway, light rail, seabed tunnel train, Aerial Vehicles, high ferro or bus etc.Further, the said communication network of the present invention uses WLAN (wireless local area network), 3G network, 4G network or microwave communication network.WLAN (wireless local area network) comprises and is not limited to wifi network, and the vehicles such as subway, seabed train can pass through wifi network, also can be met the online demand of terminal equipment by 3G, 4G network.Aerial Vehicles includes but not limited to aircraft, can be communicated by microwave communication network with airport or interim landing point.

In the system of the present invention, by adopting directional antenna or the omnidirectional antenna of different structure configuration, the omnidirectional that can realize wireless network in this system covers, and improves wireless transmission speed largely, and reduces rate of substitute and the error rate of Signal transmissions.Further, have employed the processing mode of roaming at a high speed in the system of the present invention, terminal equipment can be made to realize good traffic operation equally when high-speed mobile.

In addition, in the inventive solutions, by using the bridge arranged in a vehicle and the bridge arranged along working line, the throughput of the communication system of the traffic system of the larger working line of people's current density can be increased, increase the bandwidth of this communication system, and online demand at a high speed can be provided to be greater than everyone speed of 1Mbps for user, thus make the user of this communication system can enjoy high-quality, the online of high speed experiences.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (35)

1. for a communication system for the traffic system of working line, it is characterized in that, described communication system comprises:

Train station subsystem, is arranged on the station place of described traffic system, for realizing the communication of terminal equipment in described station and external network;

Car is subsystem over the ground, for realizing the communication of terminal equipment in the vehicles and external network, described car over the ground subsystem comprises first communication module and second communication module, first communication module, be arranged on the vehicles of described traffic system, described first communication module comprises described compartment bridge; Second communication module, comprises multiple car bridge over the ground, and described multiple car over the ground bridge is provided at predetermined intervals on the working line of the described vehicles; Wherein, communication network is utilized to carry out communicating and being communicated with external network by second communication module between described first communication module with described second communication module, described compartment bridge is provided with the first directional antenna, described multiple car over the ground bridge is provided with the second directional antenna, described second directional antenna is oriented relative with the direction of described first directional antenna, accesses the maximum antenna of signal strength signal intensity and carry out radio communication in described first directional antenna and described second directional antenna; And

Control centre, for described train station subsystem and described car the communication over the ground between subsystem carry out overall control.

2. communication system according to claim 1, is characterized in that, in described train station subsystem, be provided with switch, and is provided for multiple access points of network service for the terminal equipment in described station.

3. communication system according to claim 2, is characterized in that, described switch is connected to described control centre by optical fiber or networking cable.

4. communication system according to claim 1, is characterized in that, is provided with at least one directional antenna or at least one omnidirectional antenna in described train station subsystem.

5. communication system according to claim 4, is characterized in that, in the subway concourse and/or platform at described station, be provided with omnidirectional antenna.

6. communication system according to claim 5, it is characterized in that, described omnidirectional antenna comprises base plate and first medium plate arranged in a crossed manner and second medium plate, described first medium plate and described second medium plate are placed on described base plate, described first medium plate has for be operated in the first frequency range multiple first extremely sub, and described second medium plate has for being operated at least one of the second frequency range second extremely sub; First extremely son is different with other first extremely sub polarised directions for described multiple first at least one extremely in son.

7. communication system according to claim 5, it is characterized in that, described omnidirectional antenna comprises base plate and first medium plate arranged in a crossed manner and second medium plate, described first medium plate and described second medium plate are placed on described base plate, described first medium plate has first extremely sub and at least one director for being operated in the first frequency range, and described second medium plate has for be operated in the second frequency range second extremely sub.

8. communication system according to claim 1, is characterized in that, described first communication module also comprises switch, and described switch is connected with described compartment bridging communication, and is at least one access point that described terminal equipment is provided for network service.

9. communication system according to claim 8, it is characterized in that, when described terminal equipment moves to the second access point from the first access point, described system realizes described terminal equipment from described first access point to the seamless roam of described second access point by Radio Access Controller.

10. communication system according to claim 9, is characterized in that,

Described second access point, for sending to Radio Access Controller by the certification of the terminal equipment received and reassociation requests;

Described Radio Access Controller, comprising:

Whether authentication checks module, for when receiving certification and the reassociation requests of the terminal equipment that described second access point transmits, detect the certification of described terminal equipment;

Re-association indicating module, for when described authentication checks module detects described terminal equipment by described first access point authentication, what send that described second access point and described terminal equipment set up re-association is indicated to described second access point;

Described second access point, also for when receiving described second access point and the instruction of re-association set up by described terminal equipment, sets up re-association with described terminal equipment.

11. communication systems according to claim 9, is characterized in that, described Radio Access Controller comprises the first Radio Access Controller and the second Radio Access Controller, and each Radio Access Controller manages at least one access point, wherein:

Described first Radio Access Controller comprises authentication information distribution module, for terminal equipment by the first access point under described first Radio Access Controller management first accessing WLAN time, the authentication information of described terminal equipment obtained is distributed to other Radio Access Controller in pre-configured roaming territory;

The second access point under described second Radio Access Controller management, for sending the certification from described terminal equipment received and reassociation requests to described second Radio Access Controller;

Described second Radio Access Controller comprises:

Authentication checks module, for when receiving certification and the reassociation requests of the terminal equipment that described second access point transmits, whether the authentication information according to the terminal equipment stored detects the certification of described terminal equipment;

Re-association indicating module, for when described authentication checks module detects described terminal equipment by described first access point authentication, what send that described second access point and described terminal equipment set up re-association is indicated to described second access point;

Described second access point sets up re-association for the instruction and described terminal equipment of setting up re-association according to described second access point and described terminal equipment.

12. communication systems according to claim 8, is characterized in that, described compartment bridge is disposed adjacent with described switch.

13. communication systems according to claim 8, is characterized in that, the quantity of described multiple access point is equal to or greater than the number of carriages that the described vehicles have.

14. communication systems according to claim 1, is characterized in that, described first directional antenna comprises:

Be provided with the first laminate of the feed of at least one emitting electromagnetic wave and be provided with the second laminate of at least one bridge antenna oscillator;

The position that described first laminate corresponds to each described feed is formed with the gap passed for described electromagnetic wave respectively; Wherein, described first laminate is fixedly connected with at each interval with described second laminate.

15. communication systems according to claim 14, is characterized in that, described electromagnetic frequency is 1.8GHz ~ 12GHz.

16. communication systems according to claim 15, is characterized in that, described electromagnetic frequency is 4.9GHz ~ 6GHz.

17. communication systems according to claim 16, is characterized in that, described electromagnetic frequency is 5GHz ~ 5.9GHz.

18. communication systems according to claim 15, is characterized in that, described electromagnetic frequency is 2GHz ~ 2.6GHz.

19. communication systems according to claim 18, is characterized in that, described electromagnetic frequency is 2.4GHz ~ 2.5GHz.

20. communication systems according to claim 1, it is characterized in that, described second directional antenna comprises: reflector and be located at least one antenna unit array of reflecting surface side of described reflector, described antenna unit array comprise multiple there is the first working frequency range the first antenna element and at least one there is the second antenna element of the second working frequency range, described first antenna element surrounds one week, and described second antenna element encloses in described multiple first antenna element.

21. communication systems according to claim 20, it is characterized in that, described first antenna element and the second antenna element are formed by the medium substrate be vertically fixed on same described reflecting surface side and the main element be formed on described medium substrate and director;

Described first antenna element has three, and the middle vertical plane vertical with described reflecting surface that the medium substrate of three the first antenna elements has separately intersects at a line, and often between adjacent two middle vertical planes, angle is 120 °; The medium substrate of described second antenna element is perpendicular to the medium substrate of the first antenna element described in one of them.

22. communication systems according to claim 1, is characterized in that, access the antenna that signal strength signal intensity is greater than-85dB and carry out radio communication in described first directional antenna and described second directional antenna.

23. communication systems according to claim 1, is characterized in that, described compartment bridge is arranged on the front portion in described compartment.

24. communication systems according to claim 1, is characterized in that, the switch at described second communication module platform place corresponding to the described vehicles connects, and described switch is connected with described control centre.

25. communication systems according to claim 1, is characterized in that, described multiple car over the ground bridge is arranged on the right side of described vehicles direction of advance along described working line.

26. communication systems according to claim 1, is characterized in that, described working line is provided with sidewall, and described multiple car over the ground bridge is arranged on described sidewall.

27. communication systems according to claim 1, is characterized in that, described working line is provided with multiple supporter, and described multiple car over the ground bridge is arranged on described multiple supporter correspondingly with predetermined space.

28. communication systems according to claim 2, is characterized in that, described working line is provided with roof, and described multiple car over the ground bridge is arranged on described roof.

29. communication systems according to claim 2, is characterized in that, described predetermined space is 0.5 meter to 1000 meters.

30. communication systems according to claim 29, is characterized in that, described predetermined space is 100 meters to 800 meters.

31. communication systems according to claim 30, is characterized in that, described predetermined space is 200 meters to 400 meters.

32. communication systems according to claim 1, is characterized in that, the terminal equipment of the described vehicles in motion in these vehicles is all the time only to the external network receiving and transmitting signal of this vehicles side.

33. communication systems according to claim 1, is characterized in that, described control centre also comprises load balancing module, flow-control module, network management module, log management module and authentication and accounting module.

34. communication systems according to claim 1, is characterized in that, the described vehicles are subway, light rail, seabed tunnel train, aerial vehicle, marine vehicle, high ferro or bus.

35. communication systems according to claim 1, is characterized in that, described external network is WLAN (wireless local area network), 3G network, 4G network or microwave communication network.