Application method of 3D acceleration sensor on mobile phone

A technology of acceleration sensor and application method, which is applied in the direction of measuring acceleration, speed/acceleration/impact measurement, instrument, etc.

Inactive Publication Date: 2009-07-01
SHANGHAI CHENXING ELECTRONICS SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the current prior art, there is no method for using a 3D acceleration sensor to detect falls on a mobile phone.

Method used

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  • Application method of 3D acceleration sensor on mobile phone

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Embodiment Construction

[0014] Such as figure 1 Shown, for being the software processing flowchart of the inventive method, the present invention comprises the following steps:

[0015] Step 1. Select MC9S08QG4 as the 3D acceleration sensor, preset the interrupt threshold of the 3D acceleration sensor, and set the interrupt threshold of the 3D acceleration sensor based on MC9S08QG4 to 0x75.

[0016] Step 2. Preset the action and related parameters after the mobile phone detects the interruption of the 3D acceleration sensor, such as whether to send a positioning distress message (the destination number of the text message can be set); whether to dial the distress number (the number can be set); send out a distress alarm sound or lights Flashing (ringtone type and light flashing brightness and frequency can be set).

[0017] Step 3: The mobile phone detects the signal of the 3D acceleration sensor in real time, and determines whether the 3D acceleration sensor is interrupted.

[0018] Step 4: Detect...

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Abstract

The invention aims to provide an application method of a 3D acceleration sensor on a mobile phone. Elderly persons and handicapped persons can quickly and automatically inform relevant personnel and medical rescue mechanisms to rescue immediately through the carry-on mobile phone when falling down accidentally. The invention enables the mobile phone to detect the signal of the built-in 3D acceleration sensor on a real-time basis and obtains the motion state of the mobile phone through a mathematical model. If the signal detected from the sensor accords with the characteristics of a preset falling-down signal, the mobile phone executes preset action immediately and sends out a distress signal. Because a plurality of global satellite positioning system sensors are arranged in the mobile phone at present, the geographic position information of a mobile phone holder is possible to be included in the distress signal sent out. The mobile phone can effectively shorten the waiting time of the elderly persons and the handicapped persons from falling-down to rescue.

Description

technical field [0001] The invention relates to an application method of a 3D acceleration sensor on a mobile phone, and the method is suitable for the mobile phones of the elderly and handicapped persons. Background technique [0002] In modern life, mobile phones have become a communication tool that people generally carry with them. The competition in the mobile phone market is extremely fierce. It is the general trend to develop different mobile phones for different groups of people. For the elderly and handicapped people, it is necessary to develop a new type of mobile phone that prevents them from falling and no one knows. To detect whether a fall has occurred, a 3D acceleration sensor must be used. With the miniaturization of this sensor, it is possible to integrate it into communication terminals such as mobile phones. [0003] However, in the current prior art, there is no method for using a 3D acceleration sensor to detect falls on a mobile phone. Contents of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/247H04M1/725G01P15/00H04M1/72421H04M1/72454
Inventor 潘宏得
Owner SHANGHAI CHENXING ELECTRONICS SCI & TECH CO LTD
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