CN1541468A - Information transmitter of rolling stock - Google Patents
Information transmitter of rolling stock Download PDFInfo
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- CN1541468A CN1541468A CNA028157206A CN02815720A CN1541468A CN 1541468 A CN1541468 A CN 1541468A CN A028157206 A CNA028157206 A CN A028157206A CN 02815720 A CN02815720 A CN 02815720A CN 1541468 A CN1541468 A CN 1541468A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G5/00—Couplings for special purposes not otherwise provided for
- B61G5/06—Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables
- B61G5/10—Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables for electric cables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The data communication of vehicles such as a rolling stock wherein vehicles are separated and connected repeatedly and noise-generating apparatuses such as an inverter are mounted under the floor is carried out through a network. Vehicles communicate date with a modulation wave signal that is a carrier wave signal modulated by a data signal baseband signal. Since the frequency of a modulation wave signal is set much higher than a noise frequency, the data transmission between vehicles is carried out without being influenced by a noise.
Description
Technical field
The present invention relates to make the connection of carrying out between the vehicle not to be subjected to The noise, carry out the information carrying means of the rail truck of high-speed high capacity transmission accurately with message transmission between the rail truck that separates.
Background technology
Is purpose for rail truck to get rid of the waste of using, and adjusts the vehicle number of each train according to ridership.Therefore, the separation of carrying out vehicle continually be connected.In addition, when the making regular check on of vehicle, reorganize and outfit and separate and be connected in order to be separated into one or two unit.For the such utilization state of correspondence, in the front and back of vehicle, remove beyond the jockey of machinery, also be provided for the jockey (signal connection device) or the air jockey of the message transmission between each vehicle.
As signal connection device, the main device that is connected with connector with pin that uses, and owing to be exposed to for a long time in the air after separating, the splicing ear surface oxidation produces oxide-film.Because oxide-film is an insulant, therefore when once more vehicle being connected, will hinder the electrical connection between the splicing ear.Thus, bad connection will take place, become the railway utilization and go up the reason that produces very big obstacle.
In addition, nearest rail truck drive unit, supply unit, air-conditioning equipment etc. have been carried out inversion frequently, will produce from the noise of number Hz～tens of MHz.Inversion frequently the equipment of noise-producing source be installed in usually on the base plate of vehicle.
Rail truck uses network to carry out the data communication of control signal (comprising maintenance signal) or service signal (media signal) etc.Data communication equipment is difficult to take place garble by the shield effectiveness by the car body of metal manufacturing in vehicle.But, owing to connecting with connector or each wiring between the vehicle so will weakening shield effectiveness.Thereby, in the wiring between the data communication equipment that connects vehicle, add noise, garble takes place.
In addition, the data communication of carrying out control signal (comprising maintenance signal) or service signal (media signal) etc. with network in rail truck is documented in magazine " rail truck and technology " No.58, in the 2nd page～the 8th page.
In order to prevent the loose contact of jockey (signal connection device), known adding surpasses the technology of the voltage destruction oxide-film of 10V.Specifically, add the high voltage that surpasses 10V, then, carry out message transmission, carry out message transmission perhaps for a long time with voltage above 10V with the voltage of number V at the initial stage that vehicle connects.In addition, by with softnesses such as gold be difficult to produce can also prevent loose contact widely in the surface of the plated with conductive material of chemical change at splicing ear.
The high voltage that only add to surpass 10V at the connection initial stage, the high voltage adding that only has with the initial stage of the method for carrying out information communication with the low-voltage of number V can not fully destroy oxide-film then, comes in contact bad danger once more.In addition, high-tension device need to take place, the communicator of low-voltage and they are carried out device for switching, so complex structure.
On the other hand, long-time method with the high voltage transmission that surpasses 10V will increase the power consumption of the active element of output stage.In addition, because all the more big voltage amplitude needs more the transistor of output stage at a high speed, therefore as nearest serial communication, be difficult to realize surpass the transmission of the high-speed high capacity of 10Mbps.
The loose contact that prevents jockey can consider to be provided with antenna in jockey, carrying out radio communication between the vehicle.The current data communication high-speed high capacity that makes rail truck of studying uses the high-speed wideband network.But the frequency of data-signal is about 10～100MHz, be subjected to inversion frequently the noise effect of noise-producing source.
The object of the present invention is to provide the influence that can make connection of carrying out between the vehicle and the message transmission between the rail truck that separates not be subjected to noise one-tenth, carry out the information carrying means of the rail truck of high-speed high capacity transmission accurately.
Disclosure of an invention
As feature of the present invention be by with data-signal (baseband signal) carrier modulation modulation wave signal carry out data communication between the vehicle.
Because modulation wave signal can produce high frequency for noise frequency, therefore can not be subjected to The noise and carry out transfer of data between the vehicle.In addition,, then can in transfer of data, in needed frequency band, use the band pass filter limit frequency, also can communicate even reduce voltage amplitude if transmit with the modulation wave signal of high frequency carrier having been modulated with baseband signal.Thereby, can make the message transmission between the rail truck not be subjected to The noise, carry out high-speed high capacity transmission (broadband connections) accurately.
Description of drawings
Fig. 1 is the structure chart that one embodiment of the invention is shown,
Fig. 2 is the structure chart of information carrying means one example of the present invention,
Fig. 3 is the profile that signal connection device one example is shown.
Fig. 4 is used to illustrate frequency characteristic figure of the present invention.
Fig. 5 is the profile that other example of signal connection device is shown.
Fig. 6 is the structure chart that signal connection device one example is shown.
Fig. 7 is the structure chart that other example of signal connection device is shown.
Fig. 8 is the structure chart that the major part of other embodiment of the present invention is shown.
Fig. 9 is the concrete structure figure that has adopted rail truck of the present invention.
Figure 10 is other the concrete structure figure that has adopted rail truck of the present invention.
Figure 11 is other the concrete structure figure that has adopted rail truck of the present invention.
Figure 12 is the detailed structure view of drive unit one example.
Figure 13 is the detailed structure view of other example of drive unit.
Figure 14 is the inner structure chart that voltage detector one example of wireless machine is installed.
Figure 15 is the detailed structure view of other example of drive unit.
Embodiment
Fig. 1～Fig. 3 illustrates one embodiment of the invention.Fig. 1 is a network structure of the present invention, and Fig. 2 is the detailed diagram of radio transmitting device one example, and Fig. 3 is the structure chart of signal connection device one example.
Among Fig. 1, the 1st, the network configuration in the vehicle of rail truck is by network control unit 15 and 2 radio transmitting devices 14 (A, B) formations.Network control unit 15 carries out the control of transfer of data such as control signal (comprising maintenance signal) or service signal, by network cable 18 (IEEE1394, Ethernet cable etc.) by being connected with radio transmitting device 14.Through connecting that radio transmitting device 14 carries out being connected, in connection cable, use the coaxial cable 17 of high-frequency transmission good drawing property in abutting connection with the network between the vehicle.
In rail truck,, therefore there is the following big noise of number 10MHz owing to use a large amount of inverter such as the high-voltage inverter drive unit of powered vehicle or the supply unit of in vehicle, powering to drive device.Thereby baseband transmission is easy to be subjected to this The noise.
Owing to making car body, therefore difficult to be subjected to The noise in vehicle by this shield effectiveness with metal, still between car body, there is not the shield effectiveness of car body, The noise increases.Thereby, use modulation wave signal in the transmission between vehicle than noise source higher frequency.Using in the wiring in vehicle can be with the baseband transmission of lower price preparation.
In the past, to prevent that the error of transmission between the vehicle from being purpose, carry out transmission with the voltage amplitude about 10V, but in this case, be difficult to realize surpassing the high-speed transfer of 10Mbps in the practicality, to this,, can realize surpassing the hot-short network of 100Mbps by using the modulating wave transmission in the transmission between vehicle.
Fig. 2 illustrates the detailed structure of radio transmitting device 14 1 examples, and network control unit 15 is by router, hub (HUB), formations such as server.The data transmission device 192 of radio transmitting device 14 is connected to network control unit 15 through cable 18.Data-signal from data transmission device 192 is modulated by modulator 193, amplifies when being transformed to desirable frequency in frequency translation amplifier 194.
After removing unwanted signals with band pass filter 195, the modulation wave signal that has been amplified by frequency translation amplifier 194 is transferred to gyrator 196.Gyrator 196 has directivity at the side signal transmission mask, the modulation wave signal that has passed through band pass filter 195 is sent to coaxial cable 17, the modulation wave signal that receives from coaxial cable 17 is not transferred to band pass filter 195, and is transferred to the band pass filter 197 that receives a side.
The modulation wave signal that sends from the adjacency vehicle is transferred to the band pass filter 197 that receives a side by gyrator 196, removes unwanted signal in communication.The modulation wave signal that has passed through band pass filter 197 is transformed to the frequency that is easy to demodulation with frequency translation amplifier 198, amplifies simultaneously, takes out data-signal with demodulator 119 from modulation wave signal.
In addition, data transmission device 192 also can have memory, the stores processor data, and be under the situation of control signal of vehicle in data, wish to shorten time of delay.Specifically, preferably below the 10 μ s.
Gyrator 196 is not necessarily necessary, also can use blender.Wherein, in rail truck, gyrator 196 preferably is set in practicality according to following reason.
In rail truck, separation, merging in order to carry out vehicle need arrangements of electric connection in the coupling part of transmission line.Though in the such uniform transmission line of coaxial cable, do not have any problem, be difficult to make equably the arrangements of electric connection that need separate, merge, impedance will take place not match, in this part, reflect.The signal that has reflected turns back to and sends a side, makes the amplifying circuit generation misoperation of transmitting element.In order to prevent this point, use gyrator 196.
In addition, Fig. 2 shows the situation that sends and receive with a coaxial cable 17, and also can send respectively and receive by enough different cables.In this case, using isolator to prevent to send signal in communication unit returns.
Secondly, the frequency setting that uses in the transmission between vehicle is described.As shown in Figure 1, because the radio transmitting device A of a vehicle is connected to the radio transmitting device B of other vehicle of adjacency, therefore the output signal (modulation wave signal) of radio transmitting device A is received by radio transmitting device B, and the output signal of radio transmitting device B (modulation wave signal) is received by radio transmitting device A.
In the transmission of having used carrier signal, from the necessity that anti-stop signal disturbs, need to separate the transmission of radio transmitting device 14 and the carrier frequency of reception, remove the signal that self sends out by the band pass filter 197 that receives a side.
In addition, under the control signal situations such as (control datas) of transmission control vehicle,, therefore generally network is made double-circuit system owing to require reliability.Under the situation of double-circuit system, disturb in order to prevent the signal in the signal connection device, need in single-loop system and double-circuit system, use different frequencies.Thereby, need at least to transmit with 4 kinds of frequencies, need 4 kinds of radio transmitting devices 14.For the kind that makes radio transmitting device 14 reduces half, set the frequency of carrier signal as described below.
Fig. 4 is an example of Frequency Distribution that the kind of radio transmitting device 14 is reduced the carrier signal of half.In this case,, single-loop system is decided to be f11, double-circuit system is decided to be f12 from frequency band 1 selected carrier frequency from radio transmitting device A to B.In addition,, single-loop system is decided to be f21, double-circuit system is decided to be f22 from frequency band 2 selected carrier frequencies from radio transmitting device B to A.
And then, the passband of the band pass filter 195 of one side of the transmission among the radio transmitting device A as frequency band 1, the passband of the band pass filter 197 that receives a side as frequency band 2, in addition, the passband of the band pass filter 195 of one side of the transmission among the radio transmitting device B as frequency band 2, the passband of the band pass filter 197 that receives a side as frequency band 1.
If do like this, two kinds of then can enough band pass filters different radio transmitting devices constitute the network of double-circuit systems.
Fig. 3 illustrates the detailed structure of signal connection device 2 one examples of vehicle coupling part.
In network control unit 15, connect radio transmitting device 14 and drive unit 16 by network cable 18.Drive unit 16 is used for the integral body of drive unit.In addition, network control unit 15 uses IEEE194 or Ethernet with being connected of radio transmitting device 14, and network control unit 15 uses with being connected of drive unit 16 and is suitable for the network that CAN (control area network) or DeviceNet etc. control in real time.
In radio transmitting device 14, connect transmission line 17 (generally being coaxial cable), on transmission line 17, connect antenna 11 in addition.And then antenna 11 is configured to another antenna 11 in the face of other vehicle that constitutes arrangements of electric connection 2.Another antenna 11 of other vehicle is connected to radio transmitting device 14 through transmission line 17.The radio transmitting device 14 of other vehicle also is connected to network control unit 15 by network cable 18.
The baseband signal (data-signal) that radio transmitting device 14 usefulness are sent from network control unit 15 is modulated high frequency carrier (generally being sinusoidal wave), sends modulation wave signal to transmission line 17.As modulation system, ASK (amplitude-shift keying) modulation that makes the amplitude variations of carrier wave according to the size of code is for example arranged, make the PSK multiple modes such as (phase shift keyings) of the phase change of carrier wave, can use any mode.
Launch with antenna 11 from the modulation wave signal that radio transmitting device 14 sends, by the opposing party's antenna 11 receptions.By modulation wave signal demodulation in the radio transmitting device 14 of the opposing party's vehicle that the opposing party's antenna 11 receives, take out baseband signal, join network control unit 15.
The jockey 2 usefulness antennas 11 of Fig. 3 constitute the signal that is exposed between the airborne vehicle and connect, by communicating to antenna 11 transmission modulation wave signals.Therefore do not need the network between the vehicle is electrically connected, can avoid the problem of loose contact.
The important information (control signal) of transmission drive unit 16 or brake etc. in the network between vehicle.Therefore, if because from the interrupt communications such as disturbing wave of outside, great problem such as then will take place that vehicle shuts down.In order to prevent this point, adopt the structure that surrounds with electromagnetic shielding materials such as metal 12 around the antenna 11.In addition, in abutting connection with vehicle (front and back vehicle) even electromagnetic shielding material 12 Mechanical Contact be electrically connected also and can prevent The noise.
Though stoping from the electric wave of antenna 11 emissions, electromagnetic shielding material 12 emits to the outside, reflection wave.From the modulating wave of side's antenna 11 emission as directly receiving by the opposing party's antenna 11 towards the ground wave of the opposing party's antenna 11 with by the reflected wave of the surface reflection of shielding material 12.The opposing party's antenna 11 receives ground wave and reflected wave, in antenna surface generation wave interference, reduces receptivity significantly.
Electromagnetic wave absorbent material 19 is the materials that prevent this point, is arranged between antenna 11 and the shielding material 12.Owing to absorb so shielding material 12, do not reflect by absorbent 19 from the electromagnetic wave of antenna 11 to the emission of shielding material 12 directions.Thereby the opposing party's antenna 11 only receives ground wave, does not have the interference of ground wave and reflected wave, can prevent that receptivity from worsening.
In addition, might not need electromagnetic wave absorbent material, also can work hard aspect the geometrical construction of antenna 11, insulant 13 and shielding material 12, between two antennas 11, form the interference that the such electromagnetic transmission line of waveguide also can prevent ground wave and reflected wave.
In addition, the antenna 11 that uses in jockey 2 is preferably very little, can reduce volume by antenna 11 is processed into spirality.Wherein, the size of antenna 11 is a boundary with wavelength about 1/10.
And then carrier wave preferably is to be transmitted about 10 times of ripple (baseband signal) at least.Current, the transmission speed of the actual network that provides is about 10MHz at least, can use the above carrier frequency of 100MHz.Thus, the size of antenna 11 can be taken as about 30cm at least.
In addition, carrying out under the situation of two-way communication, carrying out communicating by letter of two-way (A direction and B direction) with the time-division with a pair of antenna 11.Under the situation of A direction communication, the radio transmitting device 14 in diagram left side becomes dispensing device, and the radio transmitting device 14 on diagram right side becomes receiving system.In addition, when the B direction, the diagram left side becomes this receiving system, and the diagram right side becomes dispensing device.The mode that such time-division is carried out two-way communication calls half-duplex operation.
Even a pair of antenna carries out two-way communication in the time of also can growing.Be referred to as full-duplex communication.In this case, implement by two frequencies of multiplexing f1 and f2 in a transmission lines 17.For example, frequency f 1 is assigned to the transmission of A direction, frequency f 2 is assigned to the communication of B direction.In the radio transmitting device 14 on diagram right side, carrier wave f1 is modulated the back when transmission line 17 sends, take out signal f2 with band pass filter 197 from transmission line 17 and carry out demodulation.In the radio transmitting device 14 on diagram right side, in contrast, promptly frequency f 2 modulation backs are sent, take out f1 with band pass filter 197 and carry out demodulation.
Fig. 5 illustrates other example of jockey 2.
Fig. 5 (b) is the example that jockey 2 possesses a plurality of antennas 11.By communicating, can realize two-way communication at a high speed with different frequency f 1～fn.Generally, the communication speed of radio communication device 14 is slower than wire communication.Thereby radio communication makes the decreased performance of network integral body.Used the communication speed of the wire communication of network cable 18 under the half-duplex operation mode, to be 100Mbps, each of radio communication is being under the situation of 10Mbps under the half-duplex operation mode to the communication speed of antenna, by 10 groups of antennas 11 are set, can prevent the decreased performance that causes by radio communication.
Fig. 6 is the structure chart that an example of jockey 2 is shown, and Fig. 6 (a) is an outside drawing, (b) is the profile of coupling part.
One side's jockey 2A is constructed as follows.Around antenna 11 through insulant 13 configuration by the electromagnetic shielding material 12A that metal etc. constitutes, prevent from the influence of antenna 11 to external electromagnetic wave emission and external electromagnetic waves.In addition, the inner face at electromagnetic shielding material 12A can also be provided with electromagnetic wave absorbent material shown in Figure 3 19.
In order to be electrically connected among the jockey 2B that a side jockey 2A is inserted into the opposing party, the shielding material 12B of the opposing party's jockey 2B constitutes bigger than the diameter of the shielding material 12A of a side jockey 2A.In addition, the antenna 11 of each jockey 2A, 2B is configured to mutually relatively.In antenna 11, connect transmission line 17.In addition, transmission line 17 is connected to radio transmitting device 14.
By a plurality of antennas 11 are formed among jockey 2A, the 2B, can carry out a plurality of connections simultaneously as shown in Figure 6.
Fig. 7 is the structure chart that other example of jockey 2 is shown.Fig. 7 (a) is an outside drawing, (b) is the profile of coupling part.
Fig. 7 has constituted electrical connection without antenna with pin.Fig. 7 has changed the antenna 11 of Fig. 6 into the splicing ear 22 and 23 of pin type.Be electrically connected mutually by the inside that the splicing ear 22 of public type is inserted into the splicing ear 23 of parent form.Each splicing ear 22,23 is connected to radio transmitting device 14 by transmission line 17.In this case, radio transmitting device 14 uses wired signal transmitting apparatus.
For the splicing ear 22,23 of pin type is set being electrically connected each other.If rail truck separates splicing ear 22,23, be exposed to for a long time in the extraneous air, then sell 22,23 surface oxidation generation loose contact.Under the situation that has produced loose contact, becoming only is the electric current that flows through through the parasitic capacitance between two pins 22,23, and the amplitude of voltage is reduced to 1/100 from 1/10.
In the transmission of having used from the baseband signal of network control unit 15, be benchmark with certain current potential, judge that received signal compares high potential or electronegative potential with it, code is restored.Therefore, as long as being reduced to part, received signal just can not carry out the differentiation of data.And if in signal transmitting apparatus 14, communicate with the modulation wave signal of having modulated, even then usually signal level reduce about 1/10000 and also can communicate.
Carry out the data communication between the rail truck as described above, by with data frequency (baseband signal) carrier modulation modulation wave signal carry out data communication between the vehicle.Because modulation wave signal can produce high frequency for noise frequency, therefore can not be subjected to The noise and carry out transfer of data between the vehicle.In addition, if the modulation wave signal of high frequency carrier having been modulated in order to baseband signal transmits, then can enough band pass filter limit frequency in the needed frequency band in transfer of data, also can communicate even voltage amplitude is little.Thereby, can not be subjected to The noise, make the message transmission between the rail truck can carry out the high-speed high capacity transmission accurately.
Secondly, because the drive unit that uses drives more than hundreds of A to count the voltage of kV, therefore between vehicle, produce very big potential difference in rail truck.Thereby, if use the jockey 2 of electrical connection shown in Figure 7, then between the signal transmitting apparatus of each vehicle (the wire signal transmitting device 14 suitable), flow through electric current (direct current) with radio transmitting device 14, destroy the parts of signal transmitting apparatus 14.
Fig. 8 illustrates the embodiment that is used to address this problem.In addition, Fig. 8 is illustrated in the example that has used antenna in the jockey 2.
As shown in Figure 8, be provided with, make and cut off direct current component the seal 25 that separates between signal transmitting apparatus 14 and the jockey 2.
The object lesson of seal 25 shown in Fig. 8 (b), (c).As seal 25, use transformer or capacitor.The 27th, amplifier.
Under the situation of the transformer of Fig. 8 (b), high-frequency signal is transmission mutually in transformer, and stops direct current with transformer.In addition, under the situation of the capacitor of Fig. 8 (c), by adding the capacitor with signal ground connection, carry high frequency stops direct current with capacitor mutually.
In addition, surpass in the high-frequency transmission of GHz in frequency, transformer or capacitor do not use discrete component, and use the element that generates on substrate with graph wiring.
Adopted the structure more specifically of rail truck of the present invention shown in Fig. 9, Figure 10.
Among Fig. 9, antenna 51 is connected to bridge type radio transmitting device 14B, bridge type radio transmitting device 14B and then be connected to network control unit 15.Network control unit 15 is connected to the Local Area Network 58 that is made of radio transmitting device 30 and receiving system 31.LAN58 joins in the network with wireless.In addition, therefore LAN58 is called information LAN owing to use with the main purpose that is transmitted as of image information or text data.
The diagram of Fig. 9 left side as the vehicle of going ahead of the rest, the right side as follow-up vehicle.The network configuration of follow-up vehicle is because so omission explanation identical with the vehicle of going ahead of the rest.In addition, in the rail truck of reality, connect a plurality of vehicles as required, sometimes above 16.
At first, bridge type radio transmitting device 14B and relaying type radio transmitting device 14R are described.
Bridge type radio transmitting device 14B has the reception of analysis information, and only the port that sends for needs sends the function of data.On the other hand, relaying type radio transmitting device 14R is the device that the data that receive is carried out relaying, only carries out waveform shaping for the reception data from input unit, directly sends from lead-out terminal then.
Thereby therefore bridge type radio transmitting device 14B spent the more time owing to need be recorded in the operation of analyzing in the memory to data before the data that output is imported.Different therewith, because relaying type radio transmitting device 14R carries out input signal directly to send after the waveform shaping, therefore shorten the time of delay between input terminal and the lead-out terminal.
Judge that as analytical information the device that whether has data to send has router.Bridge type radio transmitting device 14B holds the port that connects each equipment, only sends data for the port that has connected the equipment that will send data.Different therewith, router is held network, only sends data for the network that will send data.
By using antenna 51 and terrestrial transmission information, can in vehicle, sequentially switch image information or news information as required.On the other hand, one side is by receiving the situation of vehicle when vehicle breaks down on ground, and the expert on ground can hold situation reliably, takes some countermeasures rapidly.In addition, the image information of coming from terrestrial transmission etc. can also be documented in the hard disk that is arranged in the vehicle etc.Thus, even under the environment of communicating by letter that can not carry out for a long time between vehicle and the ground, also can provide the image information service for a long time to the passenger.
In addition, under the situation of Fig. 9, the radio transmitting device 14 that connects antenna 51 is bridge type radio transmitting device 14B not necessarily also, transmission delay so long as in control LAN59 the needed time with the interior relaying type radio transmitting device 14R that then also can use.In addition, can also use the device that bridge type radio transmitting device 14B and network control unit 15 is constituted one.
Figure 10 is the jockey 2 separated structures examples of the jockey 2 of the information of transmission information LAN58 with the information of transmission control LAN59.
Even the information time of origin in vehicle with information LAN59 communication postpones also not constitute any problem.In addition, in most cases do not need full detail is transferred in the follow-up train.Therefore, though preferably use transmission delay to have the bridge type radio transmitting device 14B whether judgement carries out the function of data transmission greatly.
Control LAN59 need obtain the coordination of multiple arrangement.Specifically, connecting drive unit 16 or brake apparatus (not shown), for example make under the situation that vehicle stops, transmission information mutually between drive unit 16 and brake apparatus is carried out the coordination control of inadequate braking force in the brake apparatus compensation drive unit 16 etc.Thereby, need to do one's utmost to shorten the transmission delay of data among the LAN59 in control.Specifically, in train integral body, be preferably below the 10ms.Thereby, in control LAN59, can use the short relaying type radio transmitting device 14R of transmission delay.
Figure 11 is the example that has used opening antenna 52 and 53 as the jockey of information LAN59.
As explained above, also unimportant even the transmission delay of data has taken place in information LAN58.Under the situation of opening antenna, because the influence of external electric wave is communicated by letter bad sometimes.Even but under these circumstances, by sending the data that data also can be recovered to lose once more.
In addition, the antenna 51 that carries out wireless transmission with the device of ground one side can also be arranged in the car of vehicle or any position in the outside.Fig. 9, Figure 10 are arranged on the example in the car, for example are arranged on the top of the windshield of driver's seat.Because therefore glass transmission electromagnetic wave can not become the obstacle with ground communication.If image pattern 11 is arranged on outside the car like that, then, therefore has the effect of the communication distance that can extend owing to there is not barrier such as glass.
Figure 12 illustrates the detailed structure view of drive unit 16 1 examples.
Among Figure 12, supply with the output signal of having carried out variable voltage, variable frequency control to induction motor 103 from the power converter 100 of stringing 104 supply capabilities.Though do not illustrate here, the wheel mechanical connection of induction motor 103 and vehicle (electric car) is according to the output control vehicle of power converter 100.In addition, show drive unit 16 and infer rotary speed, the structure of the Speedless sensor mode of control of induction 103 from the constant or the current value of induction motor 103.
The operation figure that input comes from operating control device 32 transmission in control device 101 is by current detector (CT) 109 detected each phase output current and by voltage detector (PT) 110 detected filtering capacitor voltage ECF.Control device 101 carries out FEEDBACK CONTROL according to these information, outputs to power converter 100 by the result being transformed to gating signal, the control electric car.
Here, filter inductor (FL) 107, filtering capacitor (FC) 108, power converter 100 and control device 101 are arranged on the downside of car body, therefore are called base plate equipment.Therefore the control device 101 of base plate equipment need connect up along the long distance of the car body of complexity ground owing to being connected with the operating control device 32 on being arranged on the operation dish.
In addition, owing to use IGBT high speed switch elements such as (igbts), therefore very big switching noise will take place, thereby need to improve noise robustness in power converter 100.
The high speed of the hundreds of μ s of control and treatment cycle request of drive unit 16, therefore, need to detect at high speed by current detector (CT) 109 detected each phase output current and by feedback signals such as voltage detector (PT) 110 detected filtering capacitor voltage ECF.Different therewith, can be cycle about 10ms from the graphical information of operating control device 32 etc., do not need response at a high speed.
Wireless transmission is compared with wire transmission, though general transmission speed is slow, does not need wiring.On operating control device 32 and control device 101, be connected transceiver 105,106,, solve the problem of electromagnetic noise or wiring by carrying out radio communication from the graphical information of operating control device 32.If the speed of radio communication is taken as the data (160 bit) that send 10 16 bits in the 1ms cycle, then communication speed becomes 160kbps.In the communication of graphical information, wish to use the Wireless Telecom Equipment more than the 160kbps at least.
By being that the radio communication of comparison low speed is carried out and the communicating by letter of the operation platform that leaves base plate equipment, do not need to seek to save cable to the wiring of base plate equipment.In addition, noise immunity can also be sought to improve, but also the degree of freedom of base plate equipment disposition can be improved by wireless insulation property.
Figure 13 illustrates other example of drive unit 16 of the degree of freedom of the saving cable of having considered the base plate device interior and electric component configuration.In addition, the identical mark of mark on the parts identical with Figure 12.
Figure 13 be make as the current detection section of the filtering capacitor (FC) 108 of feedback signal inside installed A/D converter and wireless machine in adorn wireless dynamo-electric situation of pressing detector 111.Detected filtering capacitor voltage is to control device 101 communications.
In illustrating, Figure 14 adorns the structure of voltage detector 111 1 examples of wireless machine.
With voltage divider 151 the voltage dividing potential drop of filtering capacitor (FC) 108 direct voltage be input to power supply 152.Even being input voltages, power supply 152 changes the power supply (DC-DC converter) of the constant output voltage of also output voltage, to A/D converter 153 and 154 power supplies of wireless machine.In addition, the output of voltage divider 151 is transformed to digital signal by A/D converter 153, sends with wireless machine 154.
Because therefore the filtering capacitor voltage that has carried out the A/D conversion in control device 101 with wireless transmission not only do not need the insulation of filtering capacitor 108 and control device 101, and do not need the analog wire laying of employed in the past FC108 and control device 101.Therefore, the detected value of FC voltage is difficult to be subjected to The noise, can realize the high accuracy of controlling.
Filtering capacitor voltage is 1 signal in 2 electrical level inverters, even also be 2 signals of upper arm and underarm voltage in 3 electrical level inverters, as data volume seldom.Current, the voltage-controlled processing cycle of being supplied with in the practicality is about 200 μ s, if realize equal response speed, promptly uses the A/D converter of 12 bits, but so long as the speed about 200kbps then just can communicate.Yet owing to also have the processing that to read voltage data more at high speed, so the communication speed of preferably getting 1Mbps.
Figure 15 is on the basis of operating control device 32 and FC108, wirelessly to the situation of control device 101 communication by the current detection value of interior U, the V that adorns wireless dynamo-electric current sensor 112 detected induction motors 103, W phase.
Constitute drive unit 16 like that by image pattern 15, can further improve the saving cable and the noise robustness of base plate equipment.In adorn wireless dynamo-electric current sensor 112 structure basically can be with interior to adorn the wireless dynamo-electric detector 111 of pressing identical, by DC power supply, A/D converter with do not have line mechanism and become.As long as realize the response speed identical with current Current Control, then communication speed also can be the 1Mbps identical with voltage detecting.
As described above, the information carrying means of rail truck of the present invention can not be subjected to The noise and carry out transfer of data between the vehicle, in addition, if transmit with the modulation wave signal of high frequency carrier having been modulated with baseband signal, then can in transfer of data, use the band pass filter limit frequency in the needed frequency band, also can communicate even reduce voltage amplitude.Thereby, be suitable for requirement and be not subjected to the trains that The noise makes the message transmission between the rail truck carry out a large amount of transmission of high speed accurately.
Claims (9)
1. the information carrying means of a rail truck; It is characterized in that:
Possess
The vehicle that the process network carries out data communication;
Control the network control unit of the data communication in the above-mentioned network;
The signal transmission unit of the modulation wave signal carrier signal modulated with above-mentioned data-signal takes place;
Be arranged on the outside of above-mentioned vehicle, above-mentioned modulation wave signal be delivered to the signal connection device of other vehicle that is connected.
2. the information carrying means of a rail truck is characterized in that:
Possess
Carry out data communication through network, and the vehicle of noise generation equipment is installed at base plate;
Control the network control unit of the data communication in the above-mentioned network;
With above-mentioned data-signal carrier wave is modulated, the signal transmission unit than the modulation wave signal of the noise frequency higher frequency that is taken place by above-mentioned noise generation equipment is taken place;
Be arranged on the outside of the coupling part of above-mentioned vehicle, above-mentioned modulation wave signal be delivered to the jockey of other vehicle that is connected.
3. the information carrying means of a rail truck is characterized in that:
Possess
Carry out data communication through network, and the vehicle of noise generation equipment is installed at base plate;
Control the network control unit of the data communication in the above-mentioned network;
Baseband signal with above-mentioned data is modulated carrier signal, and the signal transmission unit than the modulation wave signal of the noise frequency higher frequency that is taken place by above-mentioned noise generation equipment takes place;
Be arranged on the outside of the coupling part of above-mentioned vehicle, above-mentioned modulation wave signal be delivered to the signal connection device with the shielding material encirclement of other vehicle that is connected.
4. the information carrying means of a rail truck is characterized in that:
Possess
Carry out data communication through network, and the vehicle of noise generation equipment is installed at base plate;
Control the network control unit of the data communication in the above-mentioned network;
Baseband signal with above-mentioned data is modulated carrier signal, and the signal transmission unit than the modulation wave signal of the noise frequency higher frequency that is taken place by above-mentioned noise generation equipment takes place;
Be arranged on the outside of the coupling part of above-mentioned vehicle, above-mentioned modulation wave signal be electrically connected to the signal connection device on the signal connection device of other vehicle that is connected;
Be arranged between above-mentioned signal transmission unit and the above-mentioned signal connection device, cut off the insulation unit of direct current.
5. the information carrying means of a rail truck is characterized in that:
Possess
Carry out data communication through network, and the vehicle of noise generation equipment is installed at base plate;
Control the network control unit of the data communication in the above-mentioned network;
Have modulating unit that the modulation wave signal carrier signal modulated with the baseband signal of above-mentioned data takes place and the modulation wave signal demodulation that handle sends from other vehicle that is connected data send to the signal transmission unit of the demodulating unit of above-mentioned network;
Be arranged on the outside of the coupling part of above-mentioned vehicle, above-mentioned modulation wave signal be delivered to the signal connection device of other vehicle that is connected.
6. the information carrying means of a rail truck is characterized in that:
Possess
Comprise the communicating by letter of data of vehicle control information and information on services through network, and the vehicle of noise generation equipment is installed at base plate;
Control the network control unit of the data communication in the above-mentioned network;
Baseband signal with above-mentioned data is modulated carrier signal, and the signal transmission unit than the modulation wave signal of the noise frequency higher frequency that is taken place by above-mentioned noise generation equipment takes place;
Be arranged on the outside of the coupling part of above-mentioned vehicle, above-mentioned modulation wave signal be electrically connected to the signal connection device on the signal connection device of other vehicle that is connected by a plurality of connectors;
Be arranged between above-mentioned signal transmission unit and the above-mentioned signal connection device, cut off the insulation unit of direct current.
7. the information carrying means of a rail truck is characterized in that:
Possess
Comprise the broadband connections of the data of vehicle control information and information on services through network, and the vehicle of noise generation equipment is installed at base plate;
Control the network control unit of the data communication in the above-mentioned network;
Baseband signal with above-mentioned data is modulated carrier signal, and the signal transmission unit than the modulation wave signal of the noise frequency higher frequency that is taken place by above-mentioned noise generation equipment takes place;
Be arranged on the outside of the coupling part of above-mentioned vehicle, above-mentioned modulation wave signal be delivered to the signal connection device of other vehicle that is connected.
8. the information carrying means of a rail truck is characterized in that:
Possess
Carry out data communication through network, and the vehicle of noise generation equipment is installed at base plate;
Control the network control unit of the data communication in the above-mentioned network;
Baseband signal with above-mentioned data is modulated carrier signal, and the wireless transmission unit than the modulation wave signal of the noise frequency higher frequency that is taken place by above-mentioned noise generation equipment takes place;
Be arranged on the outside of the coupling part of above-mentioned vehicle, the signal connection device on the signal connection device of other vehicle that is connected to be wirelessly transmitted to by the above-mentioned modulation wave signal of sky bundle of lines.
9. the information carrying means of a rail truck is characterized in that:
Possess
Comprise the broadband connections of the data of vehicle control information and information on services through network, and the vehicle of noise generation equipment is installed at base plate;
Control the network control unit of the data communication in the above-mentioned network;
With above-mentioned data-signal carrier signal is modulated, the wireless transmission unit than the modulation wave signal of the noise frequency higher frequency that is taken place by above-mentioned noise generation equipment takes place;
Be arranged on the outside of the coupling part of above-mentioned vehicle, on the signal connection device of other vehicle that is connected to be wirelessly transmitted to by a plurality of days above-mentioned modulation wave signals of bundle of lines, and the signal connection device that surrounds with shielding material of above-mentioned antenna.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP290523/2001 | 2001-09-25 | ||
| JP2001290523 | 2001-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1541468A true CN1541468A (en) | 2004-10-27 |
Family
ID=19112822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA028157206A Pending CN1541468A (en) | 2001-09-25 | 2002-09-20 | Information transmitter of rolling stock |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPWO2003028299A1 (en) |
| KR (1) | KR100610641B1 (en) |
| CN (1) | CN1541468A (en) |
| WO (1) | WO2003028299A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530026A (en) * | 2011-12-23 | 2012-07-04 | 北京世纪东方国铁科技股份有限公司 | Synchronous operation and control system and method of locomotives |
| CN102616251A (en) * | 2011-01-27 | 2012-08-01 | 铁道部运输局 | Automatic access management method and control device for high-speed train |
| CN103718471A (en) * | 2011-07-29 | 2014-04-09 | 西门子公司 | Data transmission device, railway vehicle junction unit and rail vehicle combination |
| CN105246760A (en) * | 2013-05-28 | 2016-01-13 | 易安迪机车公司 | Locomotive/tender car communication system |
| CN110035412A (en) * | 2017-12-29 | 2019-07-19 | 泰连德国有限公司 | Method and apparatus for transmitting data in vehicle |
| WO2024193867A1 (en) * | 2023-03-23 | 2024-09-26 | Dellner Couplers Ab | Central buffer coupler, signal transceiver, vehicle member and computer-implemented method |
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| DE102004024355B4 (en) * | 2004-05-17 | 2012-04-26 | Siemens Ag | Rail vehicle with a traction coupling and traction coupling for this purpose |
| WO2006013638A1 (en) * | 2004-08-04 | 2006-02-09 | Hitachi, Ltd. | Connector, information processor, and information transmission system |
| JP2006197164A (en) * | 2005-01-13 | 2006-07-27 | Matsushita Electric Ind Co Ltd | Data transmission system |
| DE502006001111D1 (en) * | 2005-09-08 | 2008-08-28 | Voith Turbo Scharfenberg Gmbh | Automatic central buffer coupling with an antenna for wireless signal transmission |
| JP5055955B2 (en) * | 2006-10-30 | 2012-10-24 | 株式会社日立製作所 | Railway vehicle transmission equipment |
| BRPI0807640B1 (en) * | 2007-02-15 | 2019-09-03 | Dellner Couplers Ab | connector and connection block in a train coupling device, arranged for connection to vehicles using rails |
| DE102008048440B4 (en) * | 2008-09-23 | 2011-04-14 | Era-Contact Gmbh | Central buffer coupling for rail vehicles |
| US8500066B2 (en) * | 2009-06-12 | 2013-08-06 | The Boeing Company | Method and apparatus for wireless aircraft communications and power system using fuselage stringers |
| DE102010045742A1 (en) | 2010-09-17 | 2012-03-22 | Harting Electric Gmbh & Co. Kg | Electric coupling for railways |
| EP2581994B1 (en) | 2011-10-13 | 2014-03-05 | Tyco Electronics Nederland B.V. | Contactless plug connector and contactless plug connector system |
| JP5893220B2 (en) | 2013-06-10 | 2016-03-23 | 三菱電機株式会社 | Inter-vehicle transmission device |
| KR101683461B1 (en) | 2014-12-29 | 2016-12-07 | 한국철도기술연구원 | Contactless information transfer apparatus for railway vehicle |
| DE102018222589A1 (en) * | 2018-12-20 | 2020-06-25 | Siemens Mobility GmbH | Antenna arrangement and rail vehicle with antenna arrangement, having several antennas |
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| JPS5713599A (en) * | 1980-06-30 | 1982-01-23 | Tokyo Shibaura Electric Co | Method of transmitting information for vehicle |
| JPH071962B2 (en) * | 1982-07-01 | 1995-01-11 | 株式会社日立製作所 | On-board data transmission system |
| JPS60203037A (en) * | 1984-03-28 | 1985-10-14 | Hitachi Ltd | Control data transmission system for train |
| JPH0911900A (en) * | 1995-06-28 | 1997-01-14 | Nabco Ltd | Inter-rolling stock signal transmitting device |
| JP2000318612A (en) * | 1999-05-10 | 2000-11-21 | Kokusai Electric Co Ltd | Automatic guide broadcast device and starting system of automatic guide display device |
| JP2001001901A (en) * | 1999-06-16 | 2001-01-09 | Toshiba Transport Eng Inc | Inter-rolling stock distance interface device |
-
2002
- 2002-09-20 KR KR1020047002383A patent/KR100610641B1/en not_active IP Right Cessation
- 2002-09-20 WO PCT/JP2002/009733 patent/WO2003028299A1/en active Application Filing
- 2002-09-20 CN CNA028157206A patent/CN1541468A/en active Pending
- 2002-09-20 JP JP2003531684A patent/JPWO2003028299A1/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616251A (en) * | 2011-01-27 | 2012-08-01 | 铁道部运输局 | Automatic access management method and control device for high-speed train |
| CN102616251B (en) * | 2011-01-27 | 2014-12-10 | 中国铁路总公司 | Automatic access management method and control device for high-speed train |
| CN103718471A (en) * | 2011-07-29 | 2014-04-09 | 西门子公司 | Data transmission device, railway vehicle junction unit and rail vehicle combination |
| CN103718471B (en) * | 2011-07-29 | 2017-03-22 | 西门子公司 | Data transmission device, railway vehicle junction unit and rail vehicle combination |
| CN102530026A (en) * | 2011-12-23 | 2012-07-04 | 北京世纪东方国铁科技股份有限公司 | Synchronous operation and control system and method of locomotives |
| CN105246760A (en) * | 2013-05-28 | 2016-01-13 | 易安迪机车公司 | Locomotive/tender car communication system |
| CN110035412A (en) * | 2017-12-29 | 2019-07-19 | 泰连德国有限公司 | Method and apparatus for transmitting data in vehicle |
| WO2024193867A1 (en) * | 2023-03-23 | 2024-09-26 | Dellner Couplers Ab | Central buffer coupler, signal transceiver, vehicle member and computer-implemented method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2003028299A1 (en) | 2005-01-13 |
| KR20040032932A (en) | 2004-04-17 |
| KR100610641B1 (en) | 2006-08-09 |
| WO2003028299A1 (en) | 2003-04-03 |
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