Mobile station having waiting process with main power off

• US 20060197654A1
• Filed: 03/23/2006
• Published: 09/07/2006
• Est. Priority Date: 09/20/2001
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Kouchiyama, Satoshi, Karashima, Teruhiko
• Granted Patent: US 7,587,194 B2
• Time in Patent Office: Days
• US Class Current: 340/436
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 52/0274 by switching on or off the equipment or parts thereof
• CPC Class Codes: H04W 76/50 for emergency connections
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

While main power in an automobile is off, a telematics station in the automobile intermittently runs to execute a process. The station has a first CPU in a wireless section for a wireless signal waiting process and a second CPU, having active and sleep modes, in a control section for resetting the first CPU. At resetting timing, if the first CPU is executing the process, it outputs a signal indicating that it is executing the process for the second CPU not to reset it. When the main power turns on, the second CPU determines that the signal is not outputted in order to reset the first CPU.

Claims

1. An emergency report system for a vehicle, the system comprising:

a wireless section that informs an emergency report center by transmitting data, when an airbag of the vehicle is expanded;

a reset section that resets a CPU of the wireless section when an ignition switch of the vehicle is turned on;

a determination section that determines whether or not the wireless section executes one process of a wireless signal waiting process and a wireless communicating process when the ignition switch is turned on;

a reset prohibiting section that prohibits the reset section from resetting the CPU when the wireless section is determined to execute the one process.

2. The emergency report system of claim 1, further comprising:

a control section coupled with the wireless section via a connector to

receive (i) a reset signal for detecting that the ignition switch is turned on and (ii) an airbag-expansion signal for detecting that the airbag is expanded, and control the reset section to reset the CPU of the wireless section, via the connector.