CN204131640U - A kind of high ferro wireless video transmission system - Google Patents
A kind of high ferro wireless video transmission system Download PDFInfo
- Publication number
- CN204131640U CN204131640U CN201420556080.4U CN201420556080U CN204131640U CN 204131640 U CN204131640 U CN 204131640U CN 201420556080 U CN201420556080 U CN 201420556080U CN 204131640 U CN204131640 U CN 204131640U
- Authority
- CN
- China
- Prior art keywords
- video
- train
- wireless
- high ferro
- surveillance center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
A kind of high ferro wireless video transmission system, comprises the video monitoring apparatus in high ferro train, by the wireless high-speed transmitting device of image information real-time Transmission, and the relay base station of downline distribution and station Surveillance center device.Video monitoring apparatus on high ferro train, realizes the collection to car epigraph, and wireless high-speed transmitting device realizes the real-time Transmission to image information and data message, by amplification and the forwarding of relay base station, is transferred to station Surveillance center.High ferro wireless video monitoring system together form the integral framework of perfect all standing non-blind area with the train scheduling communication system coordinated with it and high ferro video monitoring system along the line and surrounding area, can early warning and prevent the generation of cruelly probably case effectively, can early warning avoid the train operation safety because natural calamity causes.
Description
Technical field
The utility model relates to a kind of Video transmission system, particularly relates to a kind of high ferro wireless video transmission system.
Background technology
Railway is the main artery of Chinese national economy, is important transportation department of country, and its daily and stable operation determines the normal operation of national product, life, is subject to the great attention of country and railway parent company always.Along with the high speed development of China's economic, China Railway High-speed builds develop rapidly, and position is at the forefront in the world.
From the beginning of this year, Railway Passenger Stations and periphery there occurs the insurgent violence event at the terrified case of Kunming, Yunnan " 3.01 " violence, " 4.30 " Xinjiang Urumqi the terrorist bombings case and " 5.06 " station, Guangzhou in succession.The generation of these three sudden and violent probably events, absolutely prove anti-terrorism in China's a period of time at present and in the future, the seriousness of anti-riot, anti-separation struggle and urgency, also sufficient proof railway is as the main artery of travelling, national valuable cargo and strategic materials transport, has become the important goal that local and overseas hostile force, separatist force and terrorist implement the terrified and destructive activity of violence.Above situation shows, along with deepening continuously of high speed railway construction, has higher requirement to the security protection such as safe train operation and monitoring work.
Railway line waypoint is many, line length, and natural environment is complicated on the way, and tunnel, bridge are a lot, because natural calamity takes place frequently, can cause significant impact to the safe operation of train.7.23 " Wenzhou is gushed warm motor-car security incident more to highlight safe operation situation all the more severe.
At present, the high ferro train of China's operation does not also install video monitoring system, and the development work of the video monitoring system on bullet train is at the early-stage, does not also have the system schema of complete science.The simple image recording equipment that list coloring on train is equipped with, can only take the image frame of position, and the image frame in any joint compartment of train can both be checked in any place that can not realize ON TRAINS.
The most Gao Shikeda 380km/h of train speed of China Express Railway.When high-speed motion, there is Doppler effect in radio magnetic wave Signal transmissions.Therefore very high technical requirement is proposed to wireless image transfer device, can under the condition of high-speed mobile, undistorted real-time transmitting image information.Secondly: high ferro needs the high-definition image of real-time Transmission contain much information, take memory capacity and require that transmission bandwidth is large especially, therefore first will require that wireless image device has higher message transmission rate.
At present, the dispatching communication system that train uses, belongs to the communication technology of 2G, and can realize voice call, data transmission capabilities is very poor, can not realize the transmission of image information.
The 3G mobile communication network opened along the railway, data bandwidth is narrow, can only the discontinuous image of transmission of one line, and the picture quality resolution of transmission is low, and readability is poor, is difficult to the requirement meeting high-definition image; Meanwhile, when train high-speed cruising, 3G channel signal degradation, is in broken string state, can not realize the transmission of image.And WiFi technology is mainly used in the construction of WLAN (wireless local area network), general communication distance arrives hundreds of rice at tens meters, and its message transmission rate obviously reduces along with the increasing of communication distance, and time delay obviously strengthens; Therefore be more suitable for the non-real-time services such as online, be difficult to the needs meeting high-definition image real-time Transmission.
Utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of high ferro wireless video transmission system.
The technical scheme that the utility model provides is:
A kind of high ferro wireless video transmission system, comprises the video monitoring apparatus in high ferro train, by the wireless high-speed transmitting device of image information real-time Transmission, and the relay base station of downline distribution and station Surveillance center device;
Video monitoring apparatus in described high ferro train, comprises network high-definition camera, video server, hard disk recorder and display; The video information of described network high-definition camera to the passenger in driver, each joint compartment and compartment and train front road conditions carries out comprehensive real-time monitoring; Described video server carries out image decoding to the digital picture of high-definition camera; Described hard disk recorder is to monitor video video recording storage; Real-time display video picture on described display;
Described wireless high-speed transmitting device is positioned at high ferro train and comprises wireless high-speed transmitter and high-gain omni-directional antenna, and the video image on the train of high-speed cruising is transferred to station Surveillance center by described wireless high-speed transmitting device in real time;
Described relay base station is positioned in railway line, for receiving and forwarding the video image that wireless high-speed transmitting device sends;
Described station Surveillance center device comprises the high-gain aerial for receiving wireless signal and the receiver for receiving bullet train video signal, video signal is transferred to the relay of station Surveillance center by described station Surveillance center device, shows image; Device management Surveillance center of described station Surveillance center is for the hard disk recorder of storing and the computer server software for managing video image.
Preferably, described network high-definition camera adopts advanced digital network high-definition camera, and video camera adopts H.264 digital image compression standard, supports the procotol of standard, has network interface.
Preferably, described high-definition network camera lays respectively at: before train head in the upper side ﹑ high ferro train doorway of ﹑ train operator position and high-iron carriage.
A, train head's forward looking camera: for monitoring train traveling ahead road conditions.
Video camera above b, train operator position: the real-time monitoring work of train operator and driving conditions being carried out to overall process.
The video camera on c, high ferro train doorway: to opening/closing door of vehicle situation, whole actions that personnel get on or off the bus are monitored in real time.
The video camera of d, high-iron carriage inside: install 2 high-definition cameras often saving in compartment, can to all seats in compartment, passenger's action, realize comprehensive, without the monitoring of blind spot, overall process.
Preferably, the video monitoring apparatus 1 in described bullet train also comprises the video server and the portable mobile termianl that the digital picture of high-definition camera are carried out to image decoding; Described video server supports H.264 digital image compression standard, and vehicle commander and vehicular police are equipped with portable mobile terminal equipment, and the monitor video in other compartment can be checked in any joint compartment ON TRAINS, so that the emergency case of the interior generation of process car in time.
Preferably, described high ferro wireless video transmission system adopts digital modulation technique and the H.264 image coding technique of COFDM OFDM, realizes undistorted ground transmitting image under the speed of 400 kilometers/hour.Described wireless high-speed transmitter adopts advanced wireless network protocol, and dynamic assignment time slot, is suitable for the transmission of video information of multiple train Simultaneous Stabilization.
Preferably, described wireless high-speed transmitter has data transmission capabilities at a high speed, can transmit four road high-definition images simultaneously.
Preferably, described wireless high-speed transmitter has the multiplexing function of data and image, by railway car number, the speed of service and train position information insertion in image frame.
Preferably, the reception antenna of described station Surveillance center device adopts multi-antenna diversity technology, improves the receptivity of receiver; The relay of described station Surveillance center device is microwave relay or Optical fiber relay.
Preferably, described station Surveillance center device also comprises face identification system for determining the identity of monitored personnel.The computer server software of described station Surveillance center device can carry out simple management efficiently to various equipment, realize that video-frequency networking is monitored in real time, alarm plan process, violence terrorist incident the function of the comprehensive command and management such as emergency command.Computer server software can intellectual analysis, can be extracted by monitor video and face's picture of preliminary treatment suspect, by the database of networking, face recognition technology can be passed through, the identity of suspect can be determined, so that public security department takes resolute measure in the very first time.
Preferably, the described high ferro wireless video transmission system comprehensive video network monitoring system along the line with high ferro matches, and realizes between bullet train, the video network resource between bullet train and station Surveillance center and information resources and share.
The beneficial effects of the utility model are: after high ferro wireless video monitoring system installed by high ferro train, when train there is terrorist incident, vehicular police on train can see on-the-spot picture and make fastest response in very first time optional position ON TRAINS, adopt an effective measure, prevent spreading and upgrading of event; The video pictures at scene is real-time transmitted to station Surveillance center simultaneously, makes department of leading body at a higher level, the relevant strength such as public security department is reacted rapidly, uniform crime.
High ferro wireless video monitoring system together form the integral framework of perfect all standing non-blind area with the train scheduling communication system coordinated with it and high ferro video monitoring system along the line and surrounding area, can early warning and prevent the generation of cruelly probably case effectively, can early warning avoid the train operation safety because natural calamity causes.
Accompanying drawing explanation
Fig. 1 is the theory diagram of high ferro wireless video monitoring system of the present utility model;
Fig. 2 is the theory diagram of the video monitoring apparatus in the utility model bullet train;
Fig. 3 is the theory diagram of the utility model wireless high-speed transmitter;
Fig. 4 is the theory diagram of the utility model station Surveillance center device.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the video monitoring apparatus 1 on high ferro train, realizes the collection to car epigraph, and wireless high-speed transmitting device 2 realizes the real-time Transmission to image information and data message, by amplification and the forwarding of relay base station 3, is transferred to station Surveillance center.
A kind of high ferro wireless video transmission system of the present utility model, comprises the video monitoring apparatus 1 in high ferro train, by the wireless high-speed transmitting device 2 of image information real-time Transmission, and the relay base station 3 of downline distribution and station Surveillance center device 4;
Video monitoring apparatus 1 in described high ferro train, as shown in Figure 2, comprises network high-definition camera, video server 12, hard disk recorder 13 and liquid crystal display 14; The video information of described network high-definition camera to the passenger in driver, each joint compartment and compartment and train front road conditions carries out comprehensive real-time monitoring; The digital picture of described video server 12 pairs of high-definition cameras carries out image decoding; The 13 pairs of monitor video video recording storages of described hard disk recorder; Real-time display video picture in described liquid crystal display 14.
Video monitoring apparatus 1 in described bullet train also comprises the video server 12 and the portable mobile termianl 16 that the digital picture of high-definition camera are carried out to image decoding; Described video server 12 supports H.264 digital image compression standard, vehicle commander and vehicular police are equipped with portable mobile termianl 16 equipment, the monitor video in other compartment can be checked in any joint compartment ON TRAINS, so that the emergency case of the interior generation of process car in time.
Described network high-definition camera adopts advanced digital network high-definition camera, and video camera adopts H.264 digital image compression standard, supports the procotol of standard, has network interface.Described high-definition network camera lays respectively at: before train head in the upper side ﹑ high ferro train doorway of ﹑ train operator position and high-iron carriage.Particularly:
1, portable mobile termianl 16: above photographed monitored picture can be checked whenever and wherever possible in any joint compartment.
2, the video camera on high ferro train doorway: on the doorway, each compartment of train, each installs 1 high definition network head, for monitoring car door port area, passenger up and down, the open and-shut mode of car situation and car door.Above high definition network head, by high speed router 11, after access video server 12 processes, can be real-time transmitted on vehicle LCD 14, and on storage local hard drive CD writer 13 equipment ON TRAINS.
3, the video camera of high-iron carriage inside: often saving in compartment, the forward and backward two ends in compartment, respectively install 1 high definition network head, take advantage of fortune state for what monitor passenger in compartment.In train driving room, 1 forward sight high definition network head is installed, for monitoring train traveling ahead road conditions.Above train operator position, 1 high definition network head is installed, for monitoring train operator's moving operation overall process.Above high definition network head, by high speed router 11, after access video server 12 processes, can be real-time transmitted on vehicle LCD 14, can also pass through wireless high-speed transmitter 15, be wirelessly transmitted to higher level station Surveillance center.
Comprehensive the completing of video monitoring system on train is monitored and storage of recording a video in real time to video informations such as road conditions before driver driving behavior, up and down passenger, driving process, car, accomplishes that valid data are preserved for having access to afterwards.Can slitless connection station reporting instrument, scheduling screen, realize drive recorder function simultaneously, effective record is carried out to travelling data.Bullet train is in the process of running at high speed, and the high-definition image information on train and integrated data information can be transferred to Surveillance center by wireless high-speed transmitter 15 in real time.
Described wireless high-speed transmitting device 2 is positioned at high ferro train and comprises wireless high-speed transmitter 15 and high-gain omni-directional antenna, and the video image on the train of high-speed cruising is transferred to station Surveillance center by wireless high-speed transmitting device 2 in real time.
As shown in Figure 3: wireless high-speed transmitter 15 is by the operating speed on monitoring image information and train, the information such as geographical location information and coach number is by multiplexer 21 multiplexing synthesis integrated information data flow, deliver to digital modulator 22, digital modulator 22 realizes carrying out COFDM modulation to after traffic encryption and networking process, signal after modulation enters radio frequency amplifier 23 and amplifies, then is gone out by antenna transmission.
Due to distant apart from each station Surveillance center of the train of high-speed cruising, the proper communication distance of wireless high-speed transmitter 15 exceeded, therefore for ensureing normal communication, needing to set up relay base station 3 along the line in high ferro.Relay base station 3 is for receiving and forwarding the video image that wireless high-speed transmitting device 2 sends.Because the communication distance of high ferro wireless high-speed transmitter 15 is more than 10 kilometers, when actual installation is set up, the base station infrastructure (existing base station infrastructure distance is 6 km) that high ferro can be utilized along the line to have laid, which saves a large amount of time and expense.
As shown in Figure 4, described station Surveillance center device 4 comprises the high-gain aerial for receiving wireless signal and the wireless receiver 41 for receiving bullet train video signal, video signal is transferred to the relay of station Surveillance center by described station Surveillance center device 4, is shown by display 45 pairs of images; Described station Surveillance center device 4 management and monitoring center is for the hard disk recorder 44 of storing and the Computer Service management software 46 for managing video image.
The reception antenna of described station Surveillance center device 4 adopts multi-antenna diversity technology, improves the receptivity of receiver; The relay of described station Surveillance center device 4 is microwave link or fibre optic repeater 42.Two All-Round High Gain Antennas are set up at each station in commanding elevation, two antenna distance quarter-waves, are received on receiver by feeder line.Adopt apart from quarter-wave two antennas Received signal strength simultaneously, the sensitivity of receiver is doubled, improves antijamming capability simultaneously.If when station does not have commanding elevation to fix up an aerial wire, near selecting, commanding elevation fixes up an aerial wire: pass station Surveillance center back by fiber optic network relaying; If there is no fiber optic network, pass station Surveillance center back by microwave relay.
The monitor video image received carries out managing and distributing through video server 43 by described station Surveillance center device 4, then is connected with display screen after accessing hard disk recorder 44 and accesses computer server management software.Each station and Dispatch and Command Center receive the signal of relay station and train transmission, by receiving system, large-screen show the train number of every coastiong and the position of coach number and camera.
Described station Surveillance center device 4 also comprises face identification system for determining the identity of monitored personnel.The Computer Service management software 46 of described station Surveillance center device 4 can carry out simple management efficiently to various equipment, realize that video-frequency networking is monitored in real time, alarm plan process, violence terrorist incident the function of the comprehensive command and management such as emergency command.Computer Service management software 46 can intellectual analysis, can be extracted by monitor video and face's picture of preliminary treatment suspect, can by the database of networking, pass through face recognition technology, the identity of suspect can be determined, so that public security department takes resolute measure in the very first time.
Described high ferro wireless video transmission system adopts digital modulation technique and the H.264 image coding technique of COFDM OFDM, realizes undistorted ground transmitting image under the speed of 400 kilometers/hour.Described wireless high-speed transmitter 15 adopts advanced wireless network protocol, and dynamic assignment time slot, is suitable for the transmission of video information of multiple train Simultaneous Stabilization.Described wireless high-speed transmitter 15 has data transmission capabilities at a high speed, can transmit four road high-definition images simultaneously.Described wireless high-speed transmitter 15 has the multiplexing function of data and image, by railway car number, the speed of service and train position information insertion in image frame.
The described high ferro wireless video transmission system comprehensive video network monitoring system along the line with high ferro matches, and realizes between bullet train, the video network resource between bullet train and station Surveillance center and information resources and share.
The utility model has following characteristics:
1: high ferro train radio Video transmission system has Ke ﹑ systematicness: the video monitoring system of high ferro train radio Video transmission system and the train scheduling communication system coordinated with it and Along Railway, by the video on the high ferro train of operation and information resources, the traffic information that high ferro is along the line, the dispatch command of station Surveillance center realizes shared interconnected by wireless high-speed communications technology.
2: the advance of video monitoring scheme and integrity on train: adopt advanced high-definition network camera to meet the needs of high-definition image completely, train driving room, railway car, train doorway, train front road conditions realize non-blind area, the video monitoring scheme of all standing; Vehicle commander on train and vehicular police are equipped with portable mobile termianl 16 equipment, and the monitor video in other compartment can be checked in any joint compartment ON TRAINS, so that the emergency case of the interior generation of process car in time.
3: the high-speed radio transmitter of high ferro wireless video monitoring system has the wireless digital communication network technology adopting advanced person, high efficiency COFDM (coded orthogonal frequency division multiplexing modulation technique) technology and H.264 Image Compression Coding Technology, really solve the technical barrier of the undistorted transmission of multi-path high-definition image under high-speed mobile condition.COFDM is the high speed transmission technology under a kind of wireless environment, and modulation efficiency is high, and data rate is high, is suitable for the business of the large information capacities such as real-time Transmission high-definition image; Antijamming capability is strong, supports the communication of high-speed mobile condition, is particularly suitable for airborne communication and high ferro communication.
Claims (10)
1. a high ferro wireless video transmission system, is characterized in that:
Comprise the video monitoring apparatus in high ferro train, by the wireless high-speed transmitting device of image information real-time Transmission, the relay base station of downline distribution and station Surveillance center device;
Video monitoring apparatus in described high ferro train, comprises network high-definition camera, video server, hard disk recorder and display; The video information of described network high-definition camera to the passenger in driver, each joint compartment and compartment and train front road conditions carries out comprehensive real-time monitoring; Described video server carries out image decoding to the digital picture of high-definition camera; Described hard disk recorder is to monitor video video recording storage; Real-time display video picture on described display;
Described wireless high-speed transmitting device is positioned at high ferro train and comprises wireless high-speed transmitter and high-gain omni-directional antenna, and the video image on the train of high-speed cruising is transferred to station Surveillance center by described wireless high-speed transmitting device in real time;
Described relay base station is positioned in railway line, for receiving and forwarding the video image that wireless high-speed transmitting device sends;
Described station Surveillance center device comprises the high-gain aerial for receiving wireless signal and the receiver for receiving bullet train video signal, video signal is transferred to the relay of station Surveillance center by described station Surveillance center device, shows image; Device management Surveillance center of described station Surveillance center is for the hard disk recorder of storing and the computer server software for managing video image.
2. high ferro wireless video transmission system according to claim 1, is characterized in that:
The digital network high-definition camera that described network high-definition camera adopts, video camera adopts H.264 digital image compression standard, supports the procotol of standard, has network interface.
3. high ferro wireless video transmission system according to claim 2, is characterized in that:
Described high-definition network camera lays respectively at: before train head in the upper side ﹑ high ferro train doorway of ﹑ train operator position and high-iron carriage.
4. high ferro wireless video transmission system according to claim 1, is characterized in that:
Video monitoring apparatus in described bullet train also comprises the video server and the portable mobile termianl that the digital picture of high-definition camera are carried out to image decoding; Described video server supports H.264 digital image compression standard.
5. high ferro wireless video transmission system according to claim 1, is characterized in that:
Described high ferro wireless video transmission system adopts digital modulation technique and the H.264 image coding technique of COFDM OFDM, realizes undistorted ground transmitting image under the speed of 400 kilometers/hour.
6. high ferro wireless video transmission system according to claim 5, is characterized in that:
Described wireless high-speed transmitter has data transmission capabilities at a high speed, transmits four road high-definition images simultaneously.
7. high ferro wireless video transmission system according to claim 5, is characterized in that:
Described wireless high-speed transmitter has the multiplexing function of data and image, by railway car number, the speed of service and train position information insertion in image frame.
8. high ferro wireless video transmission system according to claim 1, is characterized in that:
The reception antenna of described station Surveillance center device adopts multi-antenna diversity technology, improves the receptivity of receiver; The relay of described station Surveillance center device is microwave relay or Optical fiber relay.
9. high ferro wireless video transmission system according to claim 1, is characterized in that:
Described station Surveillance center device also comprises face identification system for determining the identity of monitored personnel.
10. high ferro wireless video transmission system according to claim 1, is characterized in that:
The described high ferro wireless video transmission system comprehensive video network monitoring system along the line with high ferro matches, and realizes between bullet train, the video network resource between bullet train and station Surveillance center and information resources and share.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556080.4U CN204131640U (en) | 2014-09-25 | 2014-09-25 | A kind of high ferro wireless video transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556080.4U CN204131640U (en) | 2014-09-25 | 2014-09-25 | A kind of high ferro wireless video transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204131640U true CN204131640U (en) | 2015-01-28 |
Family
ID=52387954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420556080.4U Expired - Fee Related CN204131640U (en) | 2014-09-25 | 2014-09-25 | A kind of high ferro wireless video transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204131640U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818828A (en) * | 2016-05-27 | 2016-08-03 | 东莞理工学院 | Wireless video transmitter for high-speed rail |
| CN110164073A (en) * | 2019-04-18 | 2019-08-23 | 郑州信大先进技术研究院 | A kind of train safety defense monitoring system and train security-protecting and monitoring method |
| CN110171444A (en) * | 2019-05-31 | 2019-08-27 | 广州地铁集团有限公司 | A kind of remote monitoring system of mobile unit |
| CN111629356A (en) * | 2020-05-28 | 2020-09-04 | 上海鸣啸信息科技股份有限公司 | Voice cluster control equipment system applying subway control center |
| CN113395493A (en) * | 2021-06-18 | 2021-09-14 | 中冶北科(北京)水务工程技术有限公司 | Video monitoring system and point-to-point wireless link transmission authentication method |
| CN114348050A (en) * | 2022-01-07 | 2022-04-15 | 广东韶钢松山股份有限公司 | Car puller system and car |
| CN115037908A (en) * | 2022-03-04 | 2022-09-09 | 吉林云帆智能工程有限公司 | High-definition video monitoring system for railway vehicle |
-
2014
- 2014-09-25 CN CN201420556080.4U patent/CN204131640U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818828A (en) * | 2016-05-27 | 2016-08-03 | 东莞理工学院 | Wireless video transmitter for high-speed rail |
| CN105818828B (en) * | 2016-05-27 | 2017-11-03 | 东莞理工学院 | High ferro wireless video transmission device |
| CN110164073A (en) * | 2019-04-18 | 2019-08-23 | 郑州信大先进技术研究院 | A kind of train safety defense monitoring system and train security-protecting and monitoring method |
| CN110164073B (en) * | 2019-04-18 | 2021-05-11 | 郑州信大先进技术研究院 | Train security monitoring system and train security monitoring method |
| CN110171444A (en) * | 2019-05-31 | 2019-08-27 | 广州地铁集团有限公司 | A kind of remote monitoring system of mobile unit |
| CN111629356A (en) * | 2020-05-28 | 2020-09-04 | 上海鸣啸信息科技股份有限公司 | Voice cluster control equipment system applying subway control center |
| CN113395493A (en) * | 2021-06-18 | 2021-09-14 | 中冶北科(北京)水务工程技术有限公司 | Video monitoring system and point-to-point wireless link transmission authentication method |
| CN114348050A (en) * | 2022-01-07 | 2022-04-15 | 广东韶钢松山股份有限公司 | Car puller system and car |
| CN115037908A (en) * | 2022-03-04 | 2022-09-09 | 吉林云帆智能工程有限公司 | High-definition video monitoring system for railway vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204131640U (en) | A kind of high ferro wireless video transmission system | |
| US11133879B2 (en) | LTE-V based internet of vehicles communication test system and test method thereof | |
| CN101554878A (en) | System for realizing remote monitoring of integrity of train and method | |
| CN202574278U (en) | Train dispatching monitoring system | |
| CN104200651B (en) | Vehicle-mounted communication device and method based on DSRC and Beidou satellite | |
| CN103595973A (en) | Real-time vehicle audio/video monitoring system and method | |
| CN101108627A (en) | Automatic monitored control system for railway driving safety and operation method thereof | |
| CN204856892U (en) | Urban public transport intelligent management system based on thing networking | |
| CN109955870A (en) | Operation intelligence control system is sent on a kind of railway shunting top | |
| CN102404364A (en) | Cab signal wireless transmission system and method | |
| WO2015069151A1 (en) | System for data collection and data transfer from a vehicle | |
| WO2005041426A2 (en) | Information and security audio and video transmission reception system | |
| CN102821269A (en) | 3G remote video transmission system for motor train unit | |
| CN202217383U (en) | Vehicle intelligent terminal of bus | |
| CN110290504A (en) | A kind of method and platform of the transmission of car networking data | |
| KR20160070922A (en) | Surveillance CCTV system for subway cabin and transmission method for subway cabin information using the same | |
| CN102291570B (en) | For wireless supervisory control system and the method for subway | |
| Abdishukurovich et al. | Organization of video surveillance at railway crossings | |
| CN202120458U (en) | Vehicle positioning and real-time image monitoring system based on TD-SCDFMA | |
| CN203126895U (en) | Central centralized type train control system based on long term evolution(LTE)technology | |
| CN109525964A (en) | Vehicle-mounted wireless communication method and equipment | |
| CN201472308U (en) | Automobile monitoring system based on 3G network | |
| JP2021078029A (en) | Data transfer system | |
| US11894887B2 (en) | Method and communication device for transmitting and receiving camera data and sensor data | |
| CN103533030A (en) | Display method and device of metro operation information and PIS (Passenger Information System) display terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20150925 |
|
| EXPY | Termination of patent right or utility model |