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Router device

A technology of routers and adapters, which is applied in the direction of data exchange details, sustainable buildings, energy consumption reduction, etc., and can solve problems such as disconnection of power supply, inability to use devices, inability to repair firmware, etc.

Active Publication Date: 2010-08-04
BUFFALO CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in such a router device using a secondary battery, a problem caused by the utilization of the secondary battery arises
For example, in a situation where the output voltage of the secondary battery fluctuates up and down the operating voltage of the router device when the battery voltage drops below a predetermined standard, it may be higher or lower than the operating voltage in a short period of time. When the power is turned on and off repeatedly
Or, in the case of writing firmware (firmware) into the storage device of the router device, if the battery voltage drops and the power is cut off during the writing, the firmware cannot be repaired and the device may not be able to be used.

Method used

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Examples

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Deformed example 1

[0087] In the present embodiment, both the battery power supply and the commercial power supply can be used as the power source of the router device 20 , but a configuration using only the battery power supply is also possible. In addition, the battery power source is not limited to the nickel-metal hydride storage battery shown in the embodiment, and various secondary batteries such as lithium-ion secondary batteries can be used. Of course, the battery power source is not limited to secondary batteries, and various primary batteries, fuel cells, and the like may be used. In addition, the commercial power supply is not limited to the configuration receiving and supplying from the AC-DC adapter, for example, a configuration in which the router device 20 has a USB interface, etc., and receives the bus power supply via an information processing device or the like that receives the supply of commercial power is also possible. supply.

Deformed example 2

[0089] In the above-mentioned embodiment, the router device 20 is configured to perform various operation restrictions immediately when the detected voltage V is less than the predetermined value, but the timing for performing operation restrictions is not limited to this configuration. For example, when the detected voltage V is less than a predetermined value, the CPU 30 checks an operation flag and the like to obtain the operation status of the router device 20, and if it is in the middle of writing setting information, etc., the operation may be restricted after the operation is completed. . Alternatively, a configuration may be adopted in which the operation is restricted after a predetermined time has elapsed since the detection voltage V is detected to be less than a predetermined value. Thus, for example, even when the detection voltage V is less than a predetermined value in the final stage of the address operation, the operation can be limited after the address opera...

Deformed example 3

[0091] In the above-mentioned embodiment, it was assumed that the second firmware 44 is stored in the flash ROM 40, but it may be stored in a non-rewritable ROM or the like. This prevents the user from rewriting the second firmware 44 by mistake, so that the function of the second firmware 44 as backup firmware can be reliably ensured.

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Abstract

The present invention provides a router device (20) which is able to use either battery power or a commercial power supply, and when using battery power detects battery voltage and indicates the level of battery voltage with an LED. When the router device is using battery power, writing of the firmware is disabled. Further, writing of settings information write is disabled when battery voltage goes below a second threshold value; and supply of power to the CPU (30) is subsequently interrupted when battery voltage goes below a first threshold value. In this way the router device of the invention avoids problems occurring due to a drop in battery voltage when using battery power.

Description

technical field [0001] The present invention relates to a router device for transmitting communication packets from a first network to a network different from the first network. Background technique [0002] In recent years, with the development of network technology and the popularization of mobile computing technology, a small and portable router device has also been developed. As such a router device, for example, a router device of a type using a secondary battery as a power source is conceivable. [0003] However, in such a router device using a secondary battery, problems arising from the use of the secondary battery arise. For example, in a situation where the output voltage of the secondary battery fluctuates up and down the operating voltage of the router device when the battery voltage drops below a predetermined standard, it may be higher or lower than the operating voltage in a short period of time. A condition where the power is turned on and off repeatedly. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/04H02H3/24
CPCH04L12/12Y02B60/34Y02D30/50
Inventor 日比明仁田村佳照
Owner BUFFALO CORP LTD
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