Ms. Li Huang Profile

Li Huang

at Wuhan Railway Vocational College of Technology

SPIE Involvement:

Author

Publications (2)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 14 February 2020 Paper

Daily maintenance and fault handling of UPS signal power supply system in Wuhan metro

Kaixia Lu, Li Huang

Proceedings Volume 11432, 114321E (2020) https://doi.org/10.1117/12.2539456

KEYWORDS: Power supplies, Lamps, Switches, Intelligence systems, Capacitors, Electrical breakdown, Computing systems, Switching, Fluctuations and noise, Failure analysis

Read Abstract +

UPS is a kind of energy conversion device which uses battery chemical energy as backup energy to continuously provide electric energy for equipment in case of power failure or abnormal grid failure. We call it Uninterruptible Power Supply (Abbreviated as UPS). UPS can be divided into backup UPS, online interactive UPS and online Dual-Transform UPS according to different working modes.
Wuhan Metro is currently using Kehua UPS, which is an online Dual-Transform power supply system with uninterrupted power frequency. The UPS signal power supply system of Wuhan Metro works uninterruptedly all year round. Whether it can prolong the service life is an important means to measure the maintenance level of technicians and power managers [1]. UPS, which is used in conjunction with intelligent power supply screen, has become an important part of urban rail transit power supply system. Therefore, the efficiency of daily maintenance and fault handling of UPS directly affects the working efficiency of the signal system. This paper will clarify the daily maintenance content of Kehua UPS, and propose common fault information and fault handling steps of Kehua UPS. According to the steps of fault treatment, the fault can be eliminated in the shortest time, so that the Kehua UPS can quickly resume its normal working state.

Proceedings Article | 14 February 2020 Paper

Application and research of soft-switch technology in Wuhan metro communication system

Li Huang, Kaixia Lu

Proceedings Volume 11432, 114320S (2020) https://doi.org/10.1117/12.2536646

KEYWORDS: Telecommunications, Switching

Read Abstract +

With the rapid development of Urban Rail Transit, the demand and service quality of communication system for the subway is higher and higher. Good communication system is an important factor to ensure the safe operation of Urban Rail Transit. Telephone Communication is the basic hand of train command in Urban Rail Transit, including public telephone and private telephone. At present, SPC Exchange Technology is adopted in public telephone and private telephone system in Urban Rail Transit while domestic essential equipment suppliers such as ZTE, Huawei and other companies, declared phasing out the production of SPC Exchange Equipment. Thus, a new idea would be put forward to solve this problem. Soft-switch Technology can support various forms of information. It is a new network technology which integrates voice, data, image and fax services. Soft-switch technology as a representative of scientific and technological innovation can be effectively integrated with Urban Rail Transit Communication System. And the quality of communication service can also be improved. Taking Wuhan Metro as an example, this paper discusses Soft-switch technology and its application in urban rail transit communication system. After successful pilot, it can be extended to other cities.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years