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Fault diagnosis method in vehicle-mounted wireless communication system and device thereof

A communication system and vehicle-mounted wireless technology, applied in the field of fault diagnosis, can solve problems such as waste of resources, and achieve the effects of saving resources, simplifying maintenance and repair, and reliable measurement results

Inactive Publication Date: 2011-07-20
SIEMENS AG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Fourth, to carry out this test, at least two wireless modules must be installed in the access point and the client respectively. This redundant module is a waste of resources

Method used

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  • Fault diagnosis method in vehicle-mounted wireless communication system and device thereof
  • Fault diagnosis method in vehicle-mounted wireless communication system and device thereof
  • Fault diagnosis method in vehicle-mounted wireless communication system and device thereof

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Embodiment Construction

[0035] figure 1 The composition of a vehicle-mounted wireless communication system applying the present invention is given, and the wireless communication system mainly uses a WLAN network. Specifically, a WLAN network includes a backbone network, several access points (APs) and several clients. Each access point AP is connected to the backbone network and each access point AP is connected to more than one client, and each client is connected to more than one access point AP. exist figure 1 In the vehicular wireless communication system shown, generally speaking, the client (vehicle) moves along a relatively predictable path within the coverage area of ​​some access points AP. In this environment, although each The RSSI value received by each access point AP from the client and / or the RSSI value received by each client from the access point AP will vary with the movement of the client, but the maximum value of the RSSI is usually are relatively close or even identical.

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Abstract

The invention provides a fault diagnosis method in a vehicle-mounted wireless communication system. The system comprises a backbone network, at least one of access points and at least one of client sides, wherein the access points are accessed to the backbone network. The method comprises the steps of: (1) each access point is used for receiving an RSSI (received signal strength indicator) which is sent by each client side connected with each access point; and each client side is used for receiving an RSSI which is sent by each access point which is connected with each client side; (2) the access points and the client sides are used for storing and counting the received RSSIs; or the access points and the client sides are respectively used for sending the received RSSIs to a fault diagnosis server, and the fault diagnosis server is used for storing and counting the received RSSIs; and (3) the fault in the communication system is judged according to the statistic. The method in the invention can more exactly confirm the component which has a fault, and can run when the system normally operates.

Description

technical field [0001] The invention relates to a fault diagnosis technology in a wireless communication system, in particular to a fault diagnosis method and device in a vehicle-mounted wireless communication system. Background technique [0002] In a wireless communication system, some mobile client equipment (Client) may move along a predictable path within the coverage area of ​​some access points (Access Point, AP). For example, these systems can be car-to-roadside communication systems, communication systems between fixed and moving parts of industrial transmission systems, communication based train operation control systems (Communication Based Train Control, CBTC), Passenger Information Systems (Passenger Information Systems, PIS), etc. In these communication systems mentioned above, especially in safety-related applications (such as CBTC), it is very important to find and repair the damaged parts in the communication system as early as possible, especially before t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04W24/08
CPCH04W24/02H04L41/0654H04W24/08H04L41/0631
Inventor 兰普·马蒂尔斯张洁汉斯-乔基姆·福恩霍尔茨马蒂尔斯·库恩
Owner SIEMENS AG
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