CN117579406A - Trolley bus, communication method and system - Google Patents
Trolley bus, communication method and system Download PDFInfo
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- CN117579406A CN117579406A CN202410051353.8A CN202410051353A CN117579406A CN 117579406 A CN117579406 A CN 117579406A CN 202410051353 A CN202410051353 A CN 202410051353A CN 117579406 A CN117579406 A CN 117579406A
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- 238000004891 communication Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000725 suspension Substances 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The application discloses a trolley bus, a communication method and a system, and relates to the technical field of wireless communication. The trolley bus comprises a carriage and a vehicle-mounted controller, and is characterized by further comprising a power receiving and communication assembly, wherein the power receiving and communication assembly is arranged at the top of the carriage and comprises a power receiving assembly and a communication assembly, the communication assembly is arranged on the power receiving assembly, and when the power receiving assembly is contacted with a contact net to be connected with a power supply, the communication assembly is also connected with a fixed wireless access point so as to be connected with a wireless network through the fixed wireless access point. According to the wireless power supply system, the fixed wireless access point is arranged at the fixed position, the trolley buses can transmit data to the fixed wireless access point at any time by using the power supply of the contact network as a power supply, and the wireless power supply system transmits the data to the wireless network in a wireless signal mode, so that the communication between the trolley buses and the control center do not consume the energy of the battery on the trolley buses, the load of the battery is greatly reduced, and the cruising duration of the trolley buses is improved.
Description
Technical Field
The application relates to the technical field of wireless communication, in particular to a trolley bus, a communication method and a system.
Background
The trolley bus is one mode of urban public transportation, adopts a contact net as power supply, and utilizes a power receiving rod extending above a carriage to take power from the contact net so as to drive a motor to work, thereby enabling a vehicle to run in the city. The trolley bus does not need to be paved with rails before construction, and has higher running flexibility and stronger adaptability to urban roads, so that the trolley bus is still reserved in some cities at present.
As one of public transportation, the trolley bus needs to communicate with other vehicles and a control center when in operation, so as to ensure that the vehicles run on the correct route at the correct time in a complicated transportation network, and ensure the smooth and safe operation of transportation. Because the vehicle is in a moving state most of the time, the wireless communication can be used for realizing the real-time communication more stably. For example, CN107197537a provides a tram communication system and method that uses a wireless network to connect trams, control rooms, and control centers in a city to enable interconnection communications.
However, the above patent is applied to a tram, which is reliable in power supply when running, and thus can use an on-vehicle wireless access point and send out information in the form of a wireless signal with a large power. However, for trolley buses, a dual-source technology is adopted at present, that is, when electricity is taken from a contact network, batteries are also adopted to store electric energy, so that stable power supply can be ensured even in a section without the contact network or without the contact network, after the batteries are adopted, due to limited capacity of the batteries, if a vehicle-mounted wireless access point is still adopted, the load on the batteries is relatively large, and the endurance time of the batteries is directly influenced.
Disclosure of Invention
The embodiment of the application provides a trolley bus, a communication method and a system, which are used for solving the problem of larger load born by a battery in the trolley bus in the prior art.
On the one hand, this application embodiment provides the trolley bus, including carriage and on-vehicle controller, its characterized in that still includes power reception and communication subassembly, and power reception and communication subassembly set up at the top of carriage, and power reception and communication subassembly include power reception subassembly and communication subassembly, and communication subassembly sets up on power reception subassembly, when power reception subassembly and contact net contact in order to switch on, communication subassembly also switch on with fixed wireless access point to access wireless network through fixed wireless access point.
On the other hand, the embodiment of the application also provides a trolley bus communication method, which comprises the following steps:
connecting the communication assembly with a fixed wireless access point;
supplying power to the fixed wireless access point by using a power supply of the overhead line system;
the vehicle-mounted controller transmits the vehicle data to the fixed wireless access point through the communication component, and the fixed wireless access point inputs the vehicle data into the wireless network.
On the other hand, the embodiment of the application also provides a trolley bus communication system, which comprises a contact net, a fixed wireless access point and the trolley bus, wherein the trolley bus is contacted with the contact net to be connected with a power supply, the trolley bus is connected with the fixed wireless access point, and the fixed wireless access point is connected with a wireless network by utilizing the power supply of the contact net.
The trolley bus, the communication method and the system have the following advantages:
the fixed wireless access point is arranged at a fixed position, the trolley buses can transmit data to the fixed wireless access point at any time by using the power supply of the contact network as a power supply and transmit the data to the wireless network in a wireless signal mode, so that the communication between the trolley buses and the control center do not consume the energy of the battery on the trolley buses, the load of the battery is greatly reduced, and the cruising of the trolley buses is facilitated to be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an overall structure of a trolley bus according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a power receiving and communication component according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a current collector and a communication contactor according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a catenary according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an isolation unit according to an embodiment of the present application.
Reference numerals illustrate: 100. a carriage; 200. a vehicle-mounted controller; 300. a power receiving and communicating component; 310. a power receiving rod; 311. a current collector; 3110. an insulating housing; 3111. a conductive block; 320. a communication line; 321. a communication contactor; 400. a cross bar; 410. a suspension cable; 420. a carrier cable; 430. a power contact line; 440. a communication contact line; 450. an isolation unit; 4501. a mounting groove; 460. a fixed wireless access point.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Fig. 1-3 are schematic structural views of a trolley bus according to an embodiment of the present application. The embodiment of the application provides a trolley bus, which comprises a carriage 100, a vehicle-mounted controller 200 and a power receiving and communicating component 300, wherein the power receiving and communicating component 300 is arranged at the top of the carriage 100, the power receiving and communicating component 300 comprises a power receiving component and a communicating component, the communicating component is arranged on the power receiving component, and when the power receiving component contacts with a contact net to be powered on, the communicating component is also powered on with a fixed wireless access point 460 so as to access a wireless network through the fixed wireless access point 460.
Illustratively, the onboard controllers 200 are capable of controlling various devices in the car 100 and collecting status data during trolley operation, wherein the data that is needed to be sent to other trolleys or control centers is sent to the fixed wireless access point 460 via the communication component, so that the fixed wireless access point 460 sends the data in a wireless signal. Because the fixed wireless access points 460 are powered by the overhead line system, the wireless signals can be sent out by adopting larger power, so that other fixed wireless access points 460 in a larger range can receive the wireless signals, and the fixed wireless access points 460 receiving the wireless signals can send data to other trolleybuses or control centers by adopting a flow reverse to the flow of transmitting the wireless signals.
Specifically, in the case of communication between trolleys, only other trolleys near the current trolley are required to receive data, while in the case of communication between the trolley and the control center, the distance between the trolley and the control center may be relatively long, so that the fixed wireless access point 460 is required to transmit wireless signals with relatively large power, so that the trolley needs to mark the received objects of these data before transmitting the data, different marks are used for the data received by only other trolleys in a small range and the data received by the control center at a relatively long distance, the fixed wireless access point 460 can recognize the marks in the data after receiving these data, and a relatively small power can be used for transmitting wireless signals for the data marked as "workshop data", and a relatively large power is required for transmitting wireless signals for the data marked as "ground data". When the fixed wireless access point 460 disposed at other positions receives data, the marks in the data can be identified, and the data marked as "workshop data" is forwarded to different objects for example, the data marked as "workshop data" needs to be forwarded to the trolleybus which is connected at present, while the data marked as "ground data" is received by the fixed wireless access point 460 connected with the control center and forwarded to the control center, and the other fixed wireless access points 460 not connected with the control center receive the data marked as "ground data" and delete the data immediately.
The wireless network is formed by a plurality of fixed wireless access points 460, each fixed wireless access point 460 receives data sent by the trolley bus and then broadcasts the data by adopting a power supply provided by a contact net, no matter what kind of transmitting power is needed, the load can not be generated on a battery on the trolley bus, the power supply of the trolley bus is not consumed, and the cruising of the trolley bus is facilitated to be improved.
In one possible embodiment, the power receiving component includes a power receiving pole 310 and a power receiving device 311, the communication component includes a communication line 320 and a communication contactor 321, two ends of the communication line 320 are respectively connected to the vehicle-mounted controller 200 and the communication contactor 321, and the communication contactor 321 is disposed on an outer side surface of the power receiving device 311.
The power receiving pole 310 is rotatably disposed at the top of the carriage 100, and is specifically a solid or hollow pole, and a cable for turning on the power is disposed on the power receiving pole 310, when the power receiving pole 311 is raised along with the power receiving pole 310 to contact with the power contact wire 430 above the carriage 100, the battery in the carriage 100 and the vehicle-mounted controller 200 are turned on, the battery can be charged by using the power, and the vehicle-mounted controller 200 can control the motor or air conditioner to operate by using the power, and when the power receiving pole 310 passes through some non-energized sections of the overhead contact system or enters the area where the overhead contact system is not erected in the parking lot, the vehicle-mounted controller 200 can switch the equipment in the carriage 100 to the power using the battery, so as to avoid the equipment stop operation caused by the failure of the trolley bus.
Because the electric receiver 310 is adopted to form a connecting medium between the carriage 100 and the contact net, the communication line 320 can be arranged on the electric receiver 310, meanwhile, the communication contactor 321 is arranged on the outer side surface of the electric receiver 311, and when the electric receiver 311 is contacted with the electric power contact line 430 to be connected with a power supply through arranging the communication contact line 440 in parallel near the electric power contact line 430 in the contact net, the communication contactor 321 is just contacted with the communication contact line 440, so that the vehicle-mounted controller 200 and the fixed wireless access point 460 are connected, the vehicle-mounted controller 200 can send data to the fixed wireless access point 460, and after the fixed wireless access point 460 receives the data, the data can be immediately converted into wireless signals and sent out, and the data can be temporarily stored and transmitted for a plurality of times.
In one possible embodiment, the communication contactor 321 includes an insulating housing and a conductive block disposed inside the insulating housing for contacting the communication contact line 440 disposed in the catenary to connect the in-vehicle controller 200 to the fixed wireless access point 460.
Illustratively, the structures of the current collector 311 and the communication contactor 321 are the same, and the two are only different in size, the current collector 311 includes a U-shaped insulating housing 3110 and a conductive block 3111 disposed inside the insulating housing 3110, the conductive block 3111 may be made of graphite, and a groove matching the shape of the bottom of the power contact wire 430 is formed on a side surface facing to the top opening of the insulating housing 3110, when the current collector 311 rises along with the current collector 310, the current collector 311 can rotate at the top end of the current collector 310, so as to keep the current collector 311 and the power contact wire 430 in normal contact after the relative positions and angles of the current collector 310 and the power contact wire 430 change, and a larger contact area exists between the conductive block 3111 and the power contact wire 430 in the current collector 311, so that the two can keep a relatively stable connection.
Since the structures of the current collector 311 and the communication contactor 321 are the same, the structure of the communication contactor 321 will not be described in detail herein, and reference may be made to the above description of the structure of the current collector 311.
Based on the trolley bus, the application also provides a trolley bus communication method, which comprises the following steps:
connecting the communication component with the fixed wireless access point 460;
power is supplied to the fixed wireless access point 460 using the power supply of the catenary;
the in-vehicle controller 200 transmits the vehicle data to the fixed wireless access point 460 through the communication module, and the fixed wireless access point 460 inputs the vehicle data into the wireless network.
Further, based on the trolley bus and the communication method, the application also provides a trolley bus communication system, which comprises a contact net, a fixed wireless access point 460 and the trolley bus, wherein the trolley bus is in contact with the contact net to be connected with a power supply, the trolley bus is connected with the fixed wireless access point 460, and the fixed wireless access point 460 utilizes the power supply of the contact net to be connected with a wireless network.
Illustratively, as shown in fig. 4-5, the catenary includes a cross bar 400, a power contact wire 430, and a communication contact wire 440, both of which hang below the cross bar 400. The cross bar 400 can be arranged on the upright post fixed on the roadside, the cross bar 400 extends into the upper part of the road surface in a horizontal arrangement mode, and the power contact wire 430 and the communication contact wire 440 are hung below the cross bar, so that the trolley bus always keeps sliding contact with the power contact wire 430 and the communication contact wire 440 in the running process, and the power supply and the data transmission are ensured to be connected in real time when the trolley bus is available. The power supply on the power contact line 430 may be provided by a plurality of rectifying stations disposed along the trolley bus line, and 600V or 550V direct current output from the rectifying stations supplies power to the power contact line 430 through a feeder line. Since the direct current needs to be distinguished into positive and negative electrodes in the power transmission process, the number of the power contact wires 430 is two, namely a positive potential wire and a negative potential wire, respectively, and accordingly, two power receiving rods 310 and power receiving devices 311 on the top of the carriage 100 need to be provided, respectively, for accessing a positive potential power supply and a negative potential power supply, and the communication contactor 321 and the communication wire 320 can be provided on one of the power receiving devices 311 and the power receiving rods 310.
In the embodiment of the present application, the overhead contact system further includes a suspension cable 410 and a carrier cable 420, the suspension cable 410 is suspended below the cross bar 400, the power contact line 430 and the communication contact line 440 are both located below the suspension cable 410, the upper end of the carrier cable 420 is connected with the suspension cable 410, and the lower end of the carrier cable 420 is connected with the power contact line 430 and the communication contact line 440.
After the suspension cable 410 and the carrier cable 420 are adopted, the power contact wire 430, the communication contact wire 440 and the cross rod 400 can be flexibly connected, and compared with a rigid connection mode of directly hanging the power contact wire 430 and the communication contact wire 440 at the bottom of the cross rod 400, after the flexible connection is adopted, the power contact wire 430 and the communication contact wire 440 can move to a certain extent relative to the cross rod 400, so that the movement of the power receiving rod 310 and the power receiving device 311 in the trolley bus moving process is adapted, and the power taking and data transmission stability is improved.
Further, an isolation unit 450 is provided between the power contact line 430 and the communication contact line 440, and the isolation unit 450 is connected to the lower end of the carrier cable 420.
Since the power contact line 430 has a higher voltage, and the communication contact line 440 has a smaller voltage, only 12V, 5V or even lower voltage is usually needed, and therefore the power contact line 430 needs to be insulated and isolated by the isolation unit 450, so that the power supply with a higher voltage transmitted on the power contact line 430 does not affect the communication contact line 440. After the suspension cable 410 and the carrier cable 420 are adopted, the isolation unit 450 may be fixedly connected to the bottom end of the carrier cable 420, and then the installation groove 4501 for connecting the power contact line 430 and the communication contact line 440 is provided at the bottom of the isolation unit 450, and the power contact line 430 and the communication contact line 440 may be connected in the installation groove 4501 by various manners such as welding, bonding, bolting, and the like, while keeping the bottoms of the power contact line 430 and the communication contact line 440 exposed, so that the power receiver 311 and the communication contact 321 normally contact the power contact line 430 and the communication contact line 440 in the sliding process, and are not blocked.
Further, a fixed wireless access point 460 is provided on the crossbar 400. After the fixed wireless access point 460 is arranged on the cross bar 400, the space on the cross bar 400 can be fully utilized, and a shorter cable or signal transmission line can be adopted to be connected among the power contact line 430, the communication contact line 440 and the fixed wireless access point 460, the fixed wireless access point 460 needs to step down the voltage after being connected with the power of the power contact line 430 so as to form 24V or 12V power, and finally the power is provided for an internal processing unit and an external omnidirectional antenna.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
Claims (9)
1. The trolley bus comprises a carriage (100) and a vehicle-mounted controller (200), and is characterized by further comprising a power receiving and communicating component (300), wherein the power receiving and communicating component (300) is arranged at the top of the carriage (100), the power receiving and communicating component (300) comprises a power receiving component and a communicating component, the communicating component is arranged on the power receiving component, and when the power receiving component is contacted with a contact net to be powered on, the communicating component is also connected with a fixed wireless access point (460) to be accessed to a wireless network through the fixed wireless access point (460).
2. The trolley bus as claimed in claim 1, wherein the power receiving assembly comprises a power receiving rod (310) and a power receiving device (311), the communication assembly comprises a communication line (320) and a communication contactor (321), two ends of the communication line (320) are respectively connected with the vehicle-mounted controller (200) and the communication contactor (321), and the communication contactor (321) is arranged on the outer side surface of the power receiving device (311).
3. Trolley bus according to claim 2, characterized in that the communication contactor (321) comprises an insulating housing and a conductive block arranged inside the insulating housing for contacting a communication contact line (440) arranged in the contact network for connecting the on-board controller (200) with the fixed wireless access point (460).
4. A trolley bus communication method, comprising:
-connecting the communication component with a fixed wireless access point (460);
-powering the fixed wireless access point (460) using a power supply of the catenary;
an onboard controller (200) transmits vehicle data to the fixed wireless access point (460) through the communication component, the fixed wireless access point (460) inputting the vehicle data into a wireless network.
5. Trolley bus communication system, characterized by comprising a catenary, a fixed wireless access point (460) and a trolley bus according to any of claims 1-3, the trolley bus being in contact with the catenary for switching on a power supply and switching on the trolley bus and the fixed wireless access point (460), the fixed wireless access point (460) utilizing the power supply of the catenary and accessing a wireless network.
6. The trolley bus communication system of claim 5, wherein the catenary includes a cross bar (400), a power contact line (430), and a communication contact line (440), the power contact line (430) and the communication contact line (440) each hanging below the cross bar (400).
7. The trolley bus communication system according to claim 6, wherein the overhead line further comprises a suspension cable (410) and a carrier cable (420), the suspension cable (410) is hung below the cross bar (400), the power contact line (430) and the communication contact line (440) are both located below the suspension cable (410), the upper end of the carrier cable (420) is connected with the suspension cable (410), and the lower end of the carrier cable (420) is connected with the power contact line (430) and the communication contact line (440).
8. The trolley bus communication system as claimed in claim 7, wherein an isolation unit (450) is provided between the power contact line (430) and the communication contact line (440), and the isolation unit (450) is connected to a lower end of the carrier cable (420).
9. The trolley bus communication system of claim 6, wherein the fixed wireless access point (460) is disposed on the rail (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410051353.8A CN117579406A (en) | 2024-01-15 | 2024-01-15 | Trolley bus, communication method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410051353.8A CN117579406A (en) | 2024-01-15 | 2024-01-15 | Trolley bus, communication method and system |
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| CN117579406A true CN117579406A (en) | 2024-02-20 |
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| CN202410051353.8A Pending CN117579406A (en) | 2024-01-15 | 2024-01-15 | Trolley bus, communication method and system |
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| CN211543266U (en) * | 2020-01-02 | 2020-09-22 | 中车株洲电力机车有限公司 | Pantograph control system and current receiving system |
| CN113212193A (en) * | 2020-02-04 | 2021-08-06 | 现代自动车株式会社 | Charging system and charging method of electric motor coach |
| CN112757901A (en) * | 2020-11-30 | 2021-05-07 | 中车长江车辆有限公司 | Fusion system with power supply, communication and positioning functions |
| CN112583914A (en) * | 2020-12-08 | 2021-03-30 | 江西省科学院应用物理研究所 | Method and device for distributing address for trolley bus networking station |
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