JPH03257516A - Protection system for battery at bus terminal - Google Patents
Protection system for battery at bus terminalInfo
- Publication number
- JPH03257516A JPH03257516A JP2057035A JP5703590A JPH03257516A JP H03257516 A JPH03257516 A JP H03257516A JP 2057035 A JP2057035 A JP 2057035A JP 5703590 A JP5703590 A JP 5703590A JP H03257516 A JPH03257516 A JP H03257516A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- memory
- cpu
- release button
- buffer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract 3
- 230000006378 damage Effects 0.000 abstract 1
- 230000007717 exclusion Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はハンディターミナルに関し、特に動作中のオペ
ミスによる電池抜は保護方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a handy terminal, and particularly to a protection system against battery removal due to an operational error during operation.
従来、この種のハンディターミナルは、オペミスにより
、動作中に電池を抜こうとした場合に警告をだす機能、
電池抜けが発生した場合に、メモリの内容を保護する機
能が不足していた。Conventionally, this type of handy terminal has a function that issues a warning if the battery is removed during operation due to an operational error.
There was a lack of functionality to protect the contents of memory in the event of a battery disconnection.
上述したこの種のハンディターミナルは、オペミスによ
り、動作中に電池を抜こうとした場合に警告をだす機能
、電池抜けが発生した場合に、メモリの内容を保護する
機能が不足している為に、オペミスにより不用意に動作
中に電池が抜かれた為に、メモリの内容を破壊すること
があるという欠点がある。Due to an operational error, this type of handheld terminal mentioned above lacks the function to issue a warning if an attempt is made to remove the battery during operation, and the function to protect the contents of the memory in the event that the battery is removed. However, if the battery is carelessly removed during operation due to an operational error, the contents of the memory may be destroyed.
本発明のハンディターミナルにおける電池抜は保護方式
の構成は、電池を取りはずして抜く為のリリースボタン
スイッチ、電池抜けを検出する為のセンサ、前記リリー
スボタンが押されたことを検出してＣＰＵに警告信号を
出力したり、前記電池抜けを検出して前記ＣＰＵのデー
タバスをロックし、メモリの内容を保護する回路を有す
ることを特徴とする特
〔実施例〕
次に、本発明について図面を参照して説明する。The protection system for battery removal in the handy terminal of the present invention consists of a release button switch for removing and removing the battery, a sensor for detecting battery removal, and a warning to the CPU when the release button is detected to be pressed. [Embodiment] Referring to the drawings for the present invention, the present invention is characterized by having a circuit that outputs a signal, detects the disconnection of the battery, locks the data bus of the CPU, and protects the contents of the memory. and explain.
第１図は本発明の一実施例のブロック図である。FIG. 1 is a block diagram of one embodiment of the present invention.
電池を抜く為のリリースボタンスイッチ１、電池抜けを
検出する為のセンサ２は、制御回路３に接続される。制
御回路３は、ＣＰＵ４、メモリバッファ５と接続される
。制御回路３、メモリバッファ５は、常時、副電池６か
ら電源を供給される。A release button switch 1 for removing the battery and a sensor 2 for detecting battery removal are connected to a control circuit 3. The control circuit 3 is connected to the CPU 4 and the memory buffer 5. The control circuit 3 and memory buffer 5 are always supplied with power from the auxiliary battery 6.
制御回路３は、電池を抜く為のリリースボタン２が押さ
れたことを検出すると、ＣＰＵ４に対してアラーム信号
を出力し、その後、電池が抜かれたことを検出すると、
メモリバッファに対しメモリのＲ／Ｗを禁止する信号を
出力する。When the control circuit 3 detects that the release button 2 for removing the battery has been pressed, it outputs an alarm signal to the CPU 4, and after that, when it detects that the battery has been removed,
Outputs a signal to the memory buffer to inhibit memory R/W.
以上説明したように本発明は、電池を抜く為のリリース
ボタンが押されたことを検出すると、ＣＰＵに対してア
ラーム信号を出力し、その後電池が抜かれたことを検出
するとメモリバッファに対しメモリのＲ／Ｗを禁止する
信号を出力することにより、オペミスにより動作中、不
用意に電池を抜くことを少なくシ、また、もし抜いてし
まった場合でも、メモリの内容を保護することができる
効果がある。As explained above, when the present invention detects that the release button for removing the battery has been pressed, it outputs an alarm signal to the CPU, and when it detects that the battery has been removed, it outputs an alarm signal to the memory buffer. By outputting a signal that prohibits R/W, it is possible to reduce the possibility of accidentally removing the battery during operation due to an operational error, and to protect the contents of the memory even if the battery is removed. be.
第１図は本発明の一実施例のブロック図である。
１・・・電池を抜く為のリリースボタン、２・・・電池
抜けを検出する為のセンサ、３・・・制御部、４・・・
ＣＰＵ１５−・・メモリバッファ、６・・・副電池。FIG. 1 is a block diagram of one embodiment of the present invention. 1...Release button for removing the battery, 2...Sensor for detecting battery removal, 3...Control unit, 4...
CPU15--Memory buffer, 6--Sub battery.
Claims (1)
電池抜けを検出する為のセンサ、前記リリースボタンが
押されたことを検出してＣＰＵに警告信号を出力したり
、前記電池抜けを検出して前記ＣＰＵのデータバスをロ
ックし、メモリの内容を保護する回路を有することを特
徴とするハンディターミナルにおける電池抜け保護方式
。Release button switch for removing and removing the battery,
A sensor for detecting battery disconnection, detects when the release button is pressed and outputs a warning signal to the CPU, or detects battery disconnection and locks the data bus of the CPU, saving the contents of the memory. A battery disconnection protection method for a handy terminal characterized by having a protective circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2057035A JPH03257516A (en) | 1990-03-07 | 1990-03-07 | Protection system for battery at bus terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2057035A JPH03257516A (en) | 1990-03-07 | 1990-03-07 | Protection system for battery at bus terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03257516A true JPH03257516A (en) | 1991-11-18 |
Family
ID=13044188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2057035A Pending JPH03257516A (en) | 1990-03-07 | 1990-03-07 | Protection system for battery at bus terminal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03257516A (en) |
-
1990
- 1990-03-07 JP JP2057035A patent/JPH03257516A/en active Pending
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