CN103118400A - Subway communication achieving device - Google Patents
Subway communication achieving device Download PDFInfo
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- CN103118400A CN103118400A CN2012105718531A CN201210571853A CN103118400A CN 103118400 A CN103118400 A CN 103118400A CN 2012105718531 A CN2012105718531 A CN 2012105718531A CN 201210571853 A CN201210571853 A CN 201210571853A CN 103118400 A CN103118400 A CN 103118400A
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- subway
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Abstract
The invention relates to a subway communication achieving device, in particular to a subway communication achieving device using wireless communication. According to a subway control signal third generation telecommunication (3G) or fourth generation telecommunication (4G) local side (201), the 3G supports four patterns of wideband code division multiple access (WCDMA), code division multiple access (CDMA) 2000, time division-synchronization code division multiple access (TD-SCDMA) and worldwide interoperability for microwave access (WiMAX); the 4G supports patterns of frequency division duplex (FDD), time division duplex (TDD) and long term evolution (LTE). An access point (AP) (202) of a subway multi-media transmission wireless fidelity (WiFi) supports patterns of 802.11a, 802.11b, 802.11g and 802.11n. A 3G or 4G vehicle terminal is installed on a subway vehicle to receive the subway control signal and send a state signal of the vehicle. A WiFi receiving terminal is installed on the vehicle on the subway to receive and send a subway multi-media signal. The accidents of involuntary stoppage of the subway and the like are solved, wherein the accidents are caused by the fact that the bandwidth of subway control signal can not be guaranteed due to the fact that the transmission of the subway control signal and the multi-media signal is achieved through dynamic bandwidth allocation on the premise that the subway control signal and the multi-media signal are adopted an AP of a same WiFi.
Description
One, technical field
This patent relates to the subway communication implement device, particularly a kind of subway communication implement device that utilizes radio communication.
Two, background technology
The control signal of subway and multi-media signal adopt the AP of same WiFi, realize control signal and the multi-media signal transmission of subway by Dynamic Bandwidth Allocation, and result can not guarantee the bandwidth of the control signal of subway, causes the accidents such as involuntary stoppage of subway.
For organizing the underground railway transportation, command train operation and carry out the business contact and the personal communication system of setting.At present, along with developing by leaps and bounds of computer technology, various types of computers are widely used in the automated systems such as the train traffic control, train operation, calamity forecast, ticketing ticket checking, service management of subway, for adapting to the needs of these automated systems, various types of wired and wireless data transmission networks have been set up.Subway communication has auto-exchange telephone, dispatching telephone, blocking telephone, radio communication, broadcasting guidance system, TV monitor system, rolling stock section's communication system, public security phone, accident rescue phone etc.Auto-exchange telephone is the chief component of subway public network.Dispatching telephone, blocking telephone are the chief components of subway private wire network.The subway radio communication is comprehensive feedback closed loop or the wireless communication system that can converse and can the transmission of data.The broadcasting guidance system is mainly the relevant guide broadcasting with the metro operation situation.The TV monitor system is mainly used in the safety supervision of subway.
Three, summary of the invention
The problem that solves:
Be the control signal of solution subway and the AP of the same WiFi of multi-media signal employing, realize control signal and the multi-media signal transmission of subway by Dynamic Bandwidth Allocation, result can not guarantee the bandwidth of the control signal of subway, causes the accidents such as involuntary stoppage of subway.
Technical scheme:
Use the AP of different WiFi to realize the control signal of subway and the transmission of multi-media signal
As shown in Figure 1, the AP (101) of subway control signal WiFi, the AP (102) of subway multimedia transmission WiFi; WiFi supports 802.11a, 802.11b, 802.11g, 802.11n pattern; The AP (101) of subway control signal WiFi, the AP (102) of subway multimedia transmission WiFi is set to different frequencies, different passwords; The control signal of the subway on railcar receives the reception WiFi terminal of WiFi terminal and subway multimedia transmission signal and uses different terminals, different reception passwords; The control signal of the subway on railcar receives the reception WiFi terminal of WiFi terminal and subway multimedia transmission signal and uses different terminal adaptive reception modes; Thereby guarantee the bandwidth of the control signal of subway.
Use the control signal of special-purpose 3G or 4G transmission subway, utilize WiFi transmitting multimedia signal
As shown in Figure 2, subway control signal 3G or 4G local side (201), 3G supports WCDMA, CDMA2000, TD-SCDMA, four kinds of patterns of WiMAX, 4G supports FDD, TDD, LTE pattern, the AP (202) of subway multimedia transmission WiFi supports 802.11a, 802.11b, 802.11g, the 802.11n pattern; 3G or 4G car-mounted terminal are installed on railcar, are received the control signal of subway, send the status signal of vehicle; The multi-media signal that the WiFi receiving terminal received and sent subway is installed on railcar.
Beneficial effect: solved the multimedia transmission channel, taken the problem of communication channel.Reduce the involuntary stoppage of subway.
Four, description of drawings
Fig. 1 uses the AP of different WiFi to realize the control signal of subway and the transmission schematic diagram of multi-media signal
Fig. 2 uses the AP of 3G/4G, WiFi to realize the control signal of subway and the transmission schematic diagram of multi-media signal
Five, embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described in detail:
Preferred embodiment 1: use the AP of different WiFi to realize the control signal of subway and the transmission of multi-media signal
As shown in Figure 1, the AP (101) of subway control signal WiFi, the AP (102) of subway multimedia transmission WiFi; WiFi supports 802.11a, 802.11b, 802.11g, 802.11n pattern; The AP (101) of subway control signal WiFi, the AP (102) of subway multimedia transmission WiFi is set to different frequencies, different passwords; The control signal of the subway on railcar receives the reception WiFi terminal of WiFi terminal and subway multimedia transmission signal and uses different terminals, different reception passwords; The control signal of the subway on railcar receives the reception WiFi terminal of WiFi terminal and subway multimedia transmission signal and uses different terminal adaptive reception modes; Thereby guarantee the bandwidth of the control signal of subway.
Preferred embodiment 2: use the control signal of special-purpose 3G or 4G transmission subway, utilize WiFi transmitting multimedia signal
As shown in Figure 2, subway control signal 3G or 4G local side (201), 3G supports WCDMA, CDMA2000, TD-SCDMA, four kinds of patterns of WiMAX, 4G supports FDD, TDD, LTE pattern, the AP (202) of subway multimedia transmission WiFi supports 802.11a, 802.11b, 802.11g, the 802.11n pattern; 3G or 4G car-mounted terminal are installed on railcar, are received the control signal of subway, send the status signal of vehicle; The multi-media signal that the WiFi receiving terminal received and sent subway is installed on railcar.
Although by reference to the accompanying drawings embodiments of the present invention are described, those of ordinary skills can make various distortion or modification within the scope of the appended claims, the part in also can the design.
Claims (2)
1. subway communication implement device is characterized in that:
WiFi supports 802.11a, 802.11b, 802.11g, 802.11n pattern; The AP (101) of subway control signal WiFi, the AP (102) of subway multimedia transmission WiFi is set to different frequencies, different passwords; The control signal of the subway on railcar receives the reception WiFi terminal of WiFi terminal and subway multimedia transmission signal and uses different terminals, different reception passwords; The control signal of the subway on railcar receives the reception WiFi terminal of WiFi terminal and subway multimedia transmission signal and uses different terminal adaptive reception modes; Thereby guarantee the bandwidth of the control signal of subway.
2. subway communication implement device is characterized in that:
Subway control signal 3G or 4G local side (201), 3G supports WCDMA, CDMA2000, TD-SCDMA, four kinds of patterns of WiMAX, 4G supports FDD, TDD, LTE pattern, the AP (202) of subway multimedia transmission WiFi supports 802.11a, 802.11b, 802.11g, the 802.11n pattern; 3G or 4G car-mounted terminal are installed on railcar, are received the control signal of subway, send the status signal of vehicle; The multi-media signal that the WiFi receiving terminal received and sent subway is installed on railcar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105718531A CN103118400A (en) | 2012-12-26 | 2012-12-26 | Subway communication achieving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105718531A CN103118400A (en) | 2012-12-26 | 2012-12-26 | Subway communication achieving device |
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| CN103118400A true CN103118400A (en) | 2013-05-22 |
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| CN2012105718531A Pending CN103118400A (en) | 2012-12-26 | 2012-12-26 | Subway communication achieving device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1889568A (en) * | 2006-08-03 | 2007-01-03 | 上海川海信息科技有限公司 | Outdoor wireless interdynamic media propagating system and application method thereof |
| CN101803226A (en) * | 2007-09-18 | 2010-08-11 | 拉昂科技有限公司 | Digital multimedia short distance wireless transmission system and wireless transmission method using the same |
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2012
- 2012-12-26 CN CN2012105718531A patent/CN103118400A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1889568A (en) * | 2006-08-03 | 2007-01-03 | 上海川海信息科技有限公司 | Outdoor wireless interdynamic media propagating system and application method thereof |
| CN101803226A (en) * | 2007-09-18 | 2010-08-11 | 拉昂科技有限公司 | Digital multimedia short distance wireless transmission system and wireless transmission method using the same |
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Application publication date: 20130522 |