JPH0413667Y2 - - Google Patents
Info
- Publication number
- JPH0413667Y2 JPH0413667Y2 JP1984165538U JP16553884U JPH0413667Y2 JP H0413667 Y2 JPH0413667 Y2 JP H0413667Y2 JP 1984165538 U JP1984165538 U JP 1984165538U JP 16553884 U JP16553884 U JP 16553884U JP H0413667 Y2 JPH0413667 Y2 JP H0413667Y2
- Authority
- JP
- Japan
- Prior art keywords
- control device
- wire
- device control
- grounding
- ground
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 6
- 238000007796 conventional method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
【考案の詳細な説明】
(A) 産業上の利用分野
本考案は、デバイス機器装着判定回路装置、特
に、デバイス機器がデバイス制御装置に対して装
脱自在に接続される電気回路装置において、上記
デバイス機器が現実に装着された状態にあるか否
かを簡単に判定できるようにしたデバイス機器装
着判定回路装置に関するものである。[Detailed Description of the Invention] (A) Field of Industrial Application The present invention is directed to a device installation determination circuit device, particularly an electric circuit device in which a device device is removably connected to a device control device. The present invention relates to a device attachment determination circuit apparatus that can easily determine whether or not a device is actually attached.
(B) 従来の技術と考案が解決しようとする問題点
本考案はそれに限られるものではないが、例え
ばiDカード・リーダ／ライタやOCR装置やバ
ー・コード・リーダなどのデバイス機器がデバイ
ス制御装置に対して現実に装着されているか否か
を知ることが必要となることが多い。比較的高級
なシステムにおいては、デバイスと制御装置との
間のインタフエースにおいて、デバイス接続の有
無を示す信号が用意されている。しかし、そのよ
うな信号が用意されていない場合には、制御装置
側から一度起動をかけてみてその結果で判断する
ようにしたり、あるいは制御装置側にもデイツ
プ・スイツチなどをつけておくようにするなどが
考慮される。(B) Problems to be solved by conventional techniques and inventions The present invention is not limited to such problems, but for example, devices such as ID card readers/writers, OCR devices, and bar code readers are device control devices. It is often necessary to know whether the device is actually attached to the device. In relatively high-grade systems, a signal indicating whether or not a device is connected is provided at the interface between the device and the control device. However, if such a signal is not available, try starting it from the control device and make a decision based on the result, or install a dip switch etc. on the control device as well. etc. will be taken into consideration.
この場合、例えば前者においては起動をかける
ための無駄なシーケンスを必要とし、またデバイ
ス動作不良なのか未装着なのかの切分けがつかな
い。また後者においてはコネクタ接触不良が発生
した場合には必ずしもデイツプ・スイツチの状態
と一致しないことが生じても、これを判定するこ
とがむづかしい。 In this case, for example, in the former case, a wasteful sequence is required to activate the device, and it is not possible to distinguish whether the device is malfunctioning or not installed. Furthermore, in the latter case, when a connector contact failure occurs, it is difficult to determine even if the state does not necessarily match the state of the dip switch.
(C) 問題点を解決するための手段
本考案は、上記の点を解決すべく、デバイス機
器とデバイス制御装置との間には、接地線と信号
線とを対にした複数の接続線が存在している点に
着目し、当該接続線を介して導通テストを行い得
るようにしている。そしてそのため、本考案のデ
バイス機器装着判定回路装置は、１つまたは複数
台のデバイス機器が接地線と信号線とを対とした
接続線の複数本をもつてデバイス制御装置に対し
て装脱自在に接続され、かつ上記複数本の接続線
のうちの上記夫々の接地線が、上記デバイス機器
と上記デバイス制御装置とにおいて接地されるよ
う構成される電気回路装置において、上記デバイ
ス制御装置における上記複数本の接続線のうちの
少なくとも１つの接続線について、当該接続線の
接地線に対して、接地状態と電圧印加状態とを選
択的に切り換える切換制御手段を上記デバイス制
御装置内にもうけると共に、少なくとも上記当該
接地線に対して電圧印加状態が選択されるときに
当該接地線の電位レベルを検出する電位レベル検
出手段を上記デバイス制御装置内にもうけたこと
を特徴としている。以下図面を参照しつつ説明す
る。(C) Means for solving the problem In order to solve the above-mentioned problem, the present invention provides a plurality of connection wires, each consisting of a pair of grounding wire and a signal wire, between the device equipment and the device control device. By focusing on the existing points, continuity tests can be performed via the relevant connection wires. Therefore, in the device attachment determination circuit device of the present invention, one or more devices can be freely attached to and detached from the device control device by having a plurality of connection wires each pairing a ground wire and a signal wire. In an electric circuit device configured such that each of the grounding wires of the plurality of connection lines is grounded in the device equipment and the device control device, the plurality of connection lines in the device control device For at least one of the connection wires, a switching control means for selectively switching between a grounding state and a voltage application state with respect to the grounding wire of the connection wire is provided in the device control device, and at least The device control device is characterized in that the device control device includes potential level detection means for detecting the potential level of the ground line when a voltage application state is selected for the ground line. This will be explained below with reference to the drawings.
(D) 実施例
図は本考案の一実施例構成を示す。図中の符号
１はデバイス制御装置、２はデバイス機器、３−
１，３−２は夫々接続線、４−１および４−２は
夫々信号線、５−１および５−２は夫々接地線を
表している。また図示GNDはデバイス機器２内
で接地点に接続されていることを表している。更
に６はリレー、７はリレー接点、８は電圧印加の
ための抵抗、９は電位レベル検出端子を表してい
る。(D) Embodiment The figure shows the configuration of an embodiment of the present invention. In the figure, numeral 1 is a device control device, 2 is a device equipment, and 3-
1 and 3-2 are connection lines, 4-1 and 4-2 are signal lines, and 5-1 and 5-2 are ground lines. Further, the illustrated GND represents that the device equipment 2 is connected to a ground point. Furthermore, 6 represents a relay, 7 a relay contact, 8 a resistor for voltage application, and 9 a potential level detection terminal.
本考案の場合、デバイス機器が装着されている
状態では、複数個の接続線３−１，３−２……
が、デバイス機器２と制御装置１との間に接続さ
れている点を利用している。即ち、制御装置１に
おいて、少なくとも１つの接続線例えば３−２に
おける接地線５−２に対して、リレー接点７のデ
バイス側に、抵抗８を介して電圧Vccを印加でき
るようにし、かつ電位レベル検出端子９をもうけ
る。 In the case of the present invention, when a device is installed, a plurality of connection lines 3-1, 3-2...
is connected between the device device 2 and the control device 1. That is, in the control device 1, the voltage Vcc can be applied to the device side of the relay contact 7 via the resistor 8, and the potential level A detection terminal 9 is provided.
デバイス機器２が現実に装着されているか否か
をチエツクするに当たつて、制御装置１内の制御
ブロツクにおける出力ポートからリレー６を制御
して接点７をオフするようにしかつ端子９から接
地線５−２の電位を検出すべく入力ポートへ導く
ようにする。 In checking whether the device 2 is actually attached, the relay 6 is controlled from the output port of the control block in the control device 1 to turn off the contact 7, and the ground wire is connected to the terminal 9. 5-2 is led to the input port for detection.
デバイス機器２が現実に装着されている場合に
は、図示GNDがデバイス機器２内で接地されて
いることから、リレー接点７がオフされた状態の
下でも、抵抗８のリレー接点側は、接地線５−
２、GND、GND、接地線５−１、制御装置１内
接地に至るルートによつて接地されている。した
がつて、端子９の電位は接地レベルにあり、これ
が入力ポートを介して判定される。 When the device 2 is actually installed, the illustrated GND is grounded within the device 2, so even when the relay contact 7 is turned off, the relay contact side of the resistor 8 is grounded. Line 5-
2. Grounded by GND, GND, ground wire 5-1, and the route leading to the ground inside the control device 1. The potential at terminal 9 is therefore at ground level, which is determined via the input port.
他方、デバイス機器２が現実に装着されていな
い場合には、図示接地線５−２は接地されていな
い状態にあり、端子９の電位は電圧Vccのレベル
にあることとなる。 On the other hand, when the device 2 is not actually attached, the illustrated ground line 5-2 is not grounded, and the potential of the terminal 9 is at the level of the voltage Vcc.
なお図示構成の場合には、デバイス機器２が機
械的に装着されていても接地線３−１や３−２に
おいて接触不良が存在していれば、未装着と判断
される可能性が存在し、この面からも好ましいも
のとなる。 In the case of the illustrated configuration, even if the device 2 is mechanically attached, if there is a poor contact in the grounding wires 3-1 and 3-2, there is a possibility that it will be determined that it is not attached. , which is preferable from this point of view as well.
(E) 考案の効果
以上説明した如く、本考案によれば、デバイス
機器の装着、未装着を比較的簡単に調べることが
可能となり、附加するハードウエア構成も簡単な
もので足りる。(E) Effects of the invention As explained above, according to the invention, it is possible to check whether a device is attached or not attached relatively easily, and only a simple additional hardware configuration is required.
図は本考案の一実施例構成を示す。
図中、１はデバイス制御装置、２はデバイス機
器、３−ｉは接続線、４−ｉは信号線、５−ｉは
接地線、７はリレー接点、８は電圧印のための抵
抗、９は電位レベル検出端子を表す。
The figure shows the configuration of an embodiment of the present invention. In the figure, 1 is a device control device, 2 is a device equipment, 3-i is a connection line, 4-i is a signal line, 5-i is a grounding line, 7 is a relay contact, 8 is a resistor for voltage marking, 9 represents a potential level detection terminal.
Claims (1)
号線とを対とした接続線の複数本をもつてデバイ
ス制御装置に対して装脱自在に接続され、 かつ上記複数本の接続線のうちの上記夫々の接
続線が、上記デバイス機器と上記デバイス制御装
置とにおいて接地されるよう構成される電気回路
装置において、 上記デバイス制御装置における上記複数本の接
続線のうちの少なくとも１つの接続線について、
当該接続線の接地線に対して、接地状態と電圧印
加状態とを選択的に切り換える切換制御手段を上
記デバイス制御装置内にもうけると共に、少なく
とも上記当該接地線に対して電圧印加状態が選択
されるときに当該接地線の電位レベルを検出する
電位レベル検出手段を上記デバイス制御装置内に
もうけたことを特徴とするデバイス機器装着判定
回路装置。[Scope of Claim for Utility Model Registration] One or more devices are removably connected to a device control device using a plurality of connection wires each consisting of a pair of ground wire and signal wire, and the above In an electric circuit device configured such that each of the plurality of connection wires is grounded between the device equipment and the device control device, one of the plurality of connection wires in the device control device. for at least one connecting line of
A switching control means for selectively switching between a grounding state and a voltage application state for the grounding wire of the connection line is provided in the device control device, and at least a voltage application state is selected for the grounding wire. A device equipment attachment determination circuit apparatus, characterized in that a potential level detection means for detecting the potential level of the ground line is provided in the device control apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984165538U JPH0413667Y2 (en) | 1984-10-31 | 1984-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984165538U JPH0413667Y2 (en) | 1984-10-31 | 1984-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6180470U JPS6180470U (en) | 1986-05-28 |
| JPH0413667Y2 true JPH0413667Y2 (en) | 1992-03-30 |
Family
ID=30723386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984165538U Expired JPH0413667Y2 (en) | 1984-10-31 | 1984-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0413667Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341020B2 (en) * | 1973-10-30 | 1978-10-31 | ||
| JPS5927271A (en) * | 1982-08-05 | 1984-02-13 | Olympus Optical Co Ltd | Earth connection detector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341020U (en) * | 1976-09-14 | 1978-04-10 | ||
| JPS58162064U (en) * | 1982-04-22 | 1983-10-28 | 日本電気株式会社 | Cable connector contact failure detection circuit |
-
1984
- 1984-10-31 JP JP1984165538U patent/JPH0413667Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341020B2 (en) * | 1973-10-30 | 1978-10-31 | ||
| JPS5927271A (en) * | 1982-08-05 | 1984-02-13 | Olympus Optical Co Ltd | Earth connection detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6180470U (en) | 1986-05-28 |
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