Saturday, October 23, 2010

Shanghai Public Transport Demand, "IQ" high


Shanghai bus drivers in a line chef Lee usually like to drive fast, most recently his "horse" has just been replaced by a new application O bus, can easily over 100 kilometers per hour. If in the past, this new car to one lot or viaduct Shu, Li Biao, the master should not be allowed while security. But now he dare not, and sticking to only run 80 km per hour, peak 60 km, a small section of the control at 50 km.

Master Li is not daring smaller, but because the car more time intelligent system sets the "monitoring" him. Master Lee for speeding if within 5 seconds, the system will live in peace with him, excluding his non-compliance; to continuous speeding more than 5 seconds, the system will alert them to abnormal data back to the background; soon speeding over the 10 km distance , the system master by the car radio to make informed Lee. Master Lee does not listen to "sincere advice" bent on whom, then reach the destination before the end of the lunch, he served "eat" on a ticket.

Close close customer service "concern" drivers

Lee's master instill obedience in this system is the public transportation industry, specifically operational management developed by the current leading the "3G" (GPS, GPRS, GIS) technology, technology development side bus Group subsidiary - Shanghai Bus Information System Engineering Co., Ltd. Chun of Friends. Senior engineer Yu Guiming these days too proud, because their system has just passed another test run in major cities, will expand the applications.

According to Yu Guiming introduction, the Shanghai total of 18,000 buses, mainly belong to four groups, the Bus (9000), Xiali public (3000), Johnson (2000), Guanzhong (1000). Remove the vehicle in 3000 is not good, really on the road there are about 15,000. 15,000 vehicles in this, the bus Toshitomo intelligent system has real equipment 3100, for a total of more than 80 lines.

"Vehicle turn, pull a good handrail Note." Every day that prompt voice buses in Shanghai is in the ring. However, in the 123 line, a similar voice-prompted GPS positioning system has been hung with hooks. "In the past, rely on voice prompts drivers to hand press button operation, every turning point of the geographic information has been recorded, the vehicle near the turning point, GPS positioning system can automatically recognize it automatically sounds an alert. The driver no longer distraction a. "Yugui Ming said.

Voice prompts and automatic intelligent system bus-stop is just a small feature in these buses, the installation of equipment, including automatic traffic recorders, GPS systems, GSM communication system, so that bus traffic safety with a reliable guarantee .

Driving recorder can accurately record the data each time point and door vehicles off state, the real-time data is sent to the background. Drivers in the pit stop, the speed of 2 kilometers per hour less than in the parking count, speed, zero to open a door, or back door will be cf time speed record for the "sliding car door state" like such a violation. From the station must be closed when the speed is zero. In the traffic on the way, the recorder automatically according to speed with the voice prompts to the language of the drivers speeding, passengers can clearly know the current operating conditions, real-time monitoring of the drivers.

In addition, some lines have been able to do so passengers waiting on the bus arrival time had an idea for bus groups with the Shanghai Media Group, building a new electronic stop sign. Station Name integrated grid, GPS positioning technology, traffic forecasts and technology, through wireless data exchange, which greatly improved the forecasting accuracy. Waiting on the platform in the new, passengers can view the recent arrival of a road when the bus in order to decide whether to continue to wait or take the bus on duty.

Intelligent system to facilitate the number of passengers, bus drivers also benefit from the lot. In addition to automatic reporting stations feature allows drivers to worry prompts effort, the driving recorder back to the background of the vehicle's data traffic for the driver in the face of such great state, to provide a reliable and valid evidence to help solve the related drivers legal disputes.

Moreover, because buses generally have been installed car TVs, audio equipment, power consumption than the original design, in the event current overload, lead to disastrous consequences, constitute a serious hazard for vehicle safety. But with traffic recorder, vehicle and other aspects of the current data also returns the background, easy to monitor traffic to the emergence of anomalies, so that early discovery, early settlement.

Demand economic flew visible

Intelligent system has improved the bus, "IQ", Nature will be easy to see economic benefits. Speaking of cost, passengers may experience less than the cost of public transportation system operating pressure. Yugui Ming said: "The rising oil prices, scrap vehicles more, updating speed, bus even Kongshi must make sure that out of the bus, the bus groups themselves are also listed companies, profit pressures extraordinary. Intelligent System-side in the reduction of vehicle mileage on Kongshi save a significant amount of the Group expenditure. "

Car Smart bus terminal increase the "IQ"

In the past, the operation of bus routes to the originating station from the parking lot, then start day operations. With the intelligent system, bus lines, either from the middle of the site into operation, no need to wait for scheduling the departure station; with a group of vehicles can also be flexible to adjust the lines, small capacity vehicles can support peak lines, could both increase the transport capacity and profitability, but also improve social service quality. The driver-for-line, the only credit card can be adjusted, the vehicle will automatically head, waist and tail signs replaced with a new line content, voice prompts every step of the way of change, truly a "demand."

Demand for the bus line vehicles to adjust the Group has a standby vehicle to save costs. Bus Group, the total road running more than 7,000 buses, in the intelligence system before the key lines to ensure capacity for peak periods, each branch must ensure that 10% of the stock of vehicles, the bus group will have to prepare 700 spare car.

After 90 years of the 20th century, continuous improvement and upgrading bus, cheap points, such as Guilin, one should also 500000 Daewoo brand and better Ruishi Shen O is 70 ~ 800 000. If you continue to maintain the original number of spare cars, the bus group, amount of funds used is very serious. But on the intelligence system, the retention of the stock of vehicles of each branch significantly reduced, and more spare cars out of the busy line can support each of the procurement savings, maintenance costs over a hundred million.

Intelligent system to produce economic benefits of such an impressive, Who would have thought the time had launched, drivers, dispatchers, office manager, was unanimously against it? Yu Guiming for journalists has opened the secret. Previously, some drivers like the smart did little tricks, deliberately given a statement of some stations directly to the car back to the end, it is not only not punished, but also fraud Saving Award; some good relationship with the dispatcher to the driver, the driver ran four laps to record his 5 laps, and now can not cheat, because a single automated reporting system road and manual reports a comparison, the error value is out of range means that transmission of the disease.

In addition, some branch managers were previously set up illegal accounts, such as borrowing the car outing, and rents have put in their coffers. Positioning System can now be found online on the road vehicle is running, as long as no vehicles running on the specified routes, will be regarded as abnormal, subsequent to the survey. In the oil sector, given the fuel card and the information systems integration, How much fuel each vehicle, whether it is abnormal, the system can be found in the background.

In short, the intelligent system launched, meaning drivers, dispatchers, office manager no longer had their own self-serving.

Scheduling the end of the traditional management model diversification

Intelligent system to bring more than just hard cash benefits, but also triggered a bus group itself changes. Yu Guiming said, to intelligent systems up and running, companies need to diversify the traditional management paradigm shift scheduling. "France has 1,400 buses, a company that only 3,000 people inside and outside the ground crew, bus groups there are 60,000 people 7,000 vehicles. There is considerable management benefits can be tapped." Yugui Ming said.

Bus Group is currently planning for a diversified operation. In the past, Shanghai's bus routes mainly depend on manual scheduling staff scheduling, scheduling of each line are bilateral, that is set up in the bus lines of both ends of the dispatcher. Defects in this system, although to ensure that the time interval out of two terminals to meet the requirements, but can not guarantee that all sites Junan required to reach half-way, and the lack of overall dispatch ends. Actual operation, the same bus lines concentrated in the up line or down line, and finally piled up in a terminal, the driver to wait a long time, the time spent driving is not much.

To this end, the bus groups make great efforts to collect and dispatch-related information, such as driving speed of each bus, to a certain point of time, different periods of congestion situation, a section of the climate change. Together these information, the scheduler be able to "absorb" the experience of the dispatcher, to automate scheduling.

"System can quickly design a scheduling table the next day. Compared with the experience of the dispatcher, the system is more accurate and more realistic. The benefits of the system scheduling is to reduce the drivers and dispatch personnel fill in the form of time, particularly certain lines per minute peak time grid, this time saved is considerable. "Yugui Ming said. According to statistics, in the past each bus in the terminal waiting time of 25 minutes, now down to 10 to 15 minutes. Without increasing costs, raising vehicle efficiency.

To change the traditional bilateral scheduling model, the bus operation of the Group developed a set of unilateral program, or called one-way air-release program, that is the terminus of the passenger away from one terminal to another terminal stop. For example, line 123, there is the phenomenon of tides in the morning from the direction of People's Square to Yueyang Hospital, very few people. Implementation of the one-way air discharge, the 123 line going directly overhead, the passengers taken from the People's Square, Yueyang Hospital, do not rely on intermediate stop, then return from the Yueyang Hospital, followed by station capacity. The peak of the original can only be made six trips, now made 22 trips, effective solution to the peak of the up and down in both directions on the issue of uniform traffic demand.

While the implementation of one-way air discharge, the bus company also were used for different line interval (for example, is the end of 55 road cars to three channels, but to those who Wujiaochang up, so do not separate the part of the car the three channels, only to Wujiaochang ), double interval (less than 2, which scheduling), and the intermediate added (to a site with a customer directly into) modes.

Diverse group scheduling to help save the human cost of the bus, opened the line in both directions, to shorten the waiting time the driver of the grid, thus significantly saving time and cost of capital. Bus Group, in accordance with the plan, the end of 2006, less than 110 lines within the Link 50% will use diverse scheduling model.






Recommended links:



Used to create automatic play music listening Pros CD



Reference Tools Shop



You before the BOSS look like a duck in a variety of Lotus



Introduction Nature - Screen Savers



PCCW's Assets, Hedge Funds Covet Emergency Shot Sing Tao Charles Ho



Photoshop rendering realistic beautiful necklace



VOB to FLV



YouTube To WMV



Foreign general manager of Intel low-key arrival in shaping China's power structure



New XML Or CSS Tools



GPS POSITIONING world



Baby Ringtone Justin Bieber Baby Ringtone



MP4 to 3GP



vb6 how to dynamically add controls



CGI Tutorial: Chapter cgilib cases



Thursday, October 14, 2010

Dynamic VLAN moving from person to person


As the company continues to expand the network, switches, technology advances, the company's network administrators are more willing to choose the layout can network switches, network switches and can be applied in the VLAN (virtual local area network), VLAN by devices connected from different regions, making the device between different regions separated from each other, VLAN can isolate broadcast and broadcast storm suppression within the scope of this VLAN, VLAN other users will not be affected very save network bandwidth. VLAN technology in the implementation, the dynamic VLAN is obviously loved by the users.

Dynamic VLAN better than the static VLAN

The properties of the switch port connected to divide, VLAN is divided into the static VLAN and dynamic VLAN. Static VLAN refers to the switch which VLAN a port is relatively fixed, while dynamic VLAN is the switch under the access to this computer to determine which VLAN the port is in work.

On the current application, the static VLAN is extensively used, settings are also very simple. However, the only static VLAN is also the largest drawback is that the properties of the switch port must be manually set by the network administrator. If the number of computers in the network over a certain number (eg 200), or need to change, switch port VLAN attributes, the network must be re-configured on the switch, which greatly enhanced the possibility of misuse. And change the connection for each client port, must also change the port belongs VALN, obviously not suitable for those who need frequent changes of network topology.

The dynamic VLAN is not the same, because he is based on the user, rather than switch to set the port, so when the user moves the physical location (ie, change from one switch to another when the switch), VLAN without reconfiguration. Not only reduces the probability of network errors, but also reduces maintenance costs.

Therefore, in the long run, dynamic VLAN network management technology will be more popular.

Username technology into highlights

The realization of the dynamic VLAN technology, according to the realization of the level in the OSI is divided into three kinds of different.

One of the most popular is the second level in the OSI set way to access the link - the definition based on MAC address. It is based on end-user device MAC address to define the membership (and MAC address is the extraction of user equipment to obtain a general network card address), that is when the device is connected into a switch port, the switch to query a database to its establishing VLAN membership.

Therefore, the network administrator must first user's MAC address assigned to the VLAN Membership Policy Server (VMPS, VLAN Membership Policy Server) database of a VLAN. This network manager must first collect all the cards to access VLAN the MAC address and log in, and if the computer for the network card, you have to reset. This undoubtedly increased the workload of network administrators, network card on the regular replacement of notebook users is very inconvenient.

The second approach is the realization of the dynamic VLAN is connected through the computer's IP address to determine the respective port VLAN, this means the third layer in the OSI set the access link to achieve. Unlike the MAC address-based VLAN, even if the computer because of the change network card MAC address, or other reasons to change, as long as it's IP address change, you still can join the pre-set VLAN. Based on this approach compared to MAC address, the change can be more simple network structure.

The third option is the fourth layer in the OSI over achieve, it is based on the user VLAN solutions. This means each port by the switch connected users currently logged on the computer (where the user identification information, usually the computer operating system, the logged on user, for example can use the Windows domain user name) to determine which VLAN the port belongs .

In other words, just use your user name login, the user no matter what computer, what IP the computer is free to access their own VLAN networks. Whether the user or network administrator who is very convenient, are three ways to achieve a relatively good solution.

Due to people moving dynamic VLAN configuration

ASUS launched the second floor above managed switches, their dynamic VLAN according to the user, the user needs a dynamic set of different VLAN, the VLAN attribute changes in the complexity of the work simple, safe and automatic.

This method, we can imagine that there is a switch database, this database information can be stored in a server switch outside (RADIUS Server) or the presence of the switch itself. The database of information including user names, passwords, and the user belongs to VLAN. Users to access switches, the need to enter user information, and then switch the user in the database to find information, read the user's VLAN, and the VLAN settings on the user access port. The user's identity is its own user name and password, regardless of where the user moved to, as long as the certificate is correct, the switch can be added to his dynamic in the corresponding VLAN.






Recommended links:



Who Is Knocking The Door Of Opportunity?



SanDisk to promote large-capacity iPod MP3 strong words



"Tomato Garden" case of first instance Pronounced loss of Chengdu, a total of over 10 million soft



DivX To MPEG



TS To MPG



New Hobby



Hot Office Suites And Tools



Jinshan said the domestic A-share listed denied rumors false



Find out the psychological make promotions



're Renting buy a house in the ascendant with



Jiang Qiping Family Laboratory of Beijing University speech sounded "New Life Movement" horn



XviD to WMV



svchost.exe has encountered a problem repair



Tuesday, October 12, 2010

C + + / CLI object of speculation recorded the Object Layout


C + + / CLI is a relatively pure C + +, support the creation of managed reference object, managed object to allocate memory from the virtual machine and management, the programmer can no longer worry about the memory leak problem. In fact, that white is the equivalent of their own to create a memory pool, and the virtual machine actually do so.

In the CLI, all classes derived from Object, including the value of this int. So the internal structure of how the Object like? Vm code through the research, you can see in general is structured as follows:




Users Save handle to a managed object, in fact, can be seen as a pointer to a Object pointer, which contains a MethodTable in Object pointer, this type of information preserved MethodTable and some function, which is like the same virtual function pointer. Many of the operations are accomplished through the pointer, such as Allocate (), such as Box (), UnBox () and so on. Followed behind in MethodTable is the real data.

This MethodTable is very core vm inside a class, it can be done by a lot of action.






Recommended links:



New Computer Education



A Fully CG Production Process - The First Draft (the Original Painting)



Dealers should not be fishing in 10



change divx to sony nwz-s738f Extension



Top Music Composers



To work without selection, the problem You thought about it?



RENJIAO She Coke Man: step by step



YouTube to WMV



Skyworth the secret of surviving



WMV to Zune



Ministry of Information Industry, Dalian today on the AVS will determine the acceptance of IPTV comm



Storage Inventory And BARCODING



Alliance With The Merger As



Liu Ren case throughout the second session Documentary



Ad Blockers Infomation



QuickTime to MPG



Monday, October 11, 2010

SARFT responded: "shield acronym" Department of misunderstanding



Earlier this month, CCTV confirmed SARFT issued a circular calling for the host port broadcast, press interviews and subtitles, and can not re-use such as the NBA, GDP, WTO, CPI and other foreign language acronym. Yesterday, SARFT responded by saying, "acronym shield" is being misread, it was intended to regulate the use of foreign words.

April 7, CCTV Sports Channel Director Jiang Heping confirmed a week prior to the SARFT issued a notice of CCTV and other media, I asked the host broadcast, press interviews and subtitles, and can not re-use such as the NBA, GDP, WTO, CPI, etc. language and acronyms, replaced by "American Professional Basketball League," "World Trade Organization," Chinese full name.

Yesterday, SARFT deputy director, publicity chief force in the participating high "standard foreign language translation, language and create a harmonious environment", said the forum, some media said SARFT "shield" the expression language acronym is not appropriate, "is not shielded, that is standard to use, we do not reject foreign culture, but after the required foreign language into the Chinese language used should be standardized."

High-long power that the current situation of the community to use foreign languages more seriously, without translation, a phenomenon directly embedded in Chinese more and more, this trend and habits will naturally have an impact on radio and television, resulting in a number of Chinese using the non-standard. Gao Chang-Li said: "This is normal, the English abbreviations are more young people to use, and these people is the main body of users."

High-power long statement, SARFT will stick to maintain the purity of Chinese, and called on other stations in line to the CCTV also hope that the relevant state departments take the lead in setting norms, foreign language should be used explicitly what kind of translation, given the short Chinese expression, "These should be phased to work at different levels, across the board will inevitably lead to social reaction. "







Recommended links:



TOD to WMV



WMV to MPEG



are megapixels all that matter in camera phones



AVI to MOV