JPH06261381A - Transmitter for wireless remote controller - Google Patents
Transmitter for wireless remote controllerInfo
- Publication number
- JPH06261381A JPH06261381A JP5044223A JP4422393A JPH06261381A JP H06261381 A JPH06261381 A JP H06261381A JP 5044223 A JP5044223 A JP 5044223A JP 4422393 A JP4422393 A JP 4422393A JP H06261381 A JPH06261381 A JP H06261381A
- Authority
- JP
- Japan
- Prior art keywords
- transmitter
- current
- transmission
- remote controller
- wireless remote
- 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.)
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Links
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- Selective Calling Equipment (AREA)
- Optical Communication System (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ワイヤレスリモコンの
送信器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmitter of a wireless remote controller.
【０００２】[0002]
【従来の技術】一般に、ワイヤレスリモコン（以下、リ
モコンと称す）の送信器の回路は図５のように構成され
ている。2. Description of the Related Art Generally, a transmitter circuit of a wireless remote controller (hereinafter referred to as a remote controller) is constructed as shown in FIG.
【０００３】送信スイッチ１をオンすると、送信ＬＳＩ
２はキャリア周波数をコード信号として端子ａから出力
する。このコード信号をトランジスタ３と４で増幅した
後、抵抗５を介して赤外発光ダイオード（以下、赤外Ｌ
ＥＤと称す）６を駆動して赤外ＬＥＤ６からコード信号
で構成する赤外線のリモコン信号を送出する。リモコン
信号の送出と同時に、抵抗７を介して可視発光ダイオー
ド（以下、可視ＬＥＤと称す）８を点灯することによっ
て、送信器における電源としての電池１２の電圧低下な
どの動作状態を確認する。なお９，１０，１１は抵抗、
１３は発振子である。また、１７は液晶表示器であり、
設定などの内容を表示する。When the transmission switch 1 is turned on, the transmission LSI
2 outputs the carrier frequency as a code signal from the terminal a. After this code signal is amplified by the transistors 3 and 4, the infrared light emitting diode (hereinafter, infrared L
The infrared LED 6 sends an infrared remote control signal composed of a code signal by driving an ED 6). Simultaneously with the transmission of the remote control signal, a visible light emitting diode (hereinafter, referred to as a visible LED) 8 is turned on through the resistor 7 to confirm an operating state such as a voltage drop of the battery 12 as a power source in the transmitter. Note that 9, 10, 11 are resistors,
Reference numeral 13 is an oscillator. 17 is a liquid crystal display,
Display contents such as settings.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら従来の構
成では、リモコン信号の送出中に可視ＬＥＤ８を点灯状
態にして送信器の動作状態を確認するようにしたため、
電池１２の電圧が低下した状態では、可視ＬＥＤ８の点
灯状態が不安定になり、電池１２の電圧低下の検知が正
確に行えなず、この表示機能が不充分となるという問題
点がある。However, in the conventional configuration, the visible LED 8 is turned on during transmission of the remote control signal to check the operating state of the transmitter.
When the voltage of the battery 12 is lowered, the lighting state of the visible LED 8 becomes unstable, the voltage drop of the battery 12 cannot be accurately detected, and this display function becomes insufficient.
【０００５】本発明は、電源の電圧が低下した状態で
も、電源の電圧低下の検知を正確に行なうとともに、こ
の警報表示が明瞭に行え確実に認識できるワイヤレスリ
モコンの送信器を提供することを目的とする。An object of the present invention is to provide a transmitter of a wireless remote controller which can accurately detect a voltage drop of a power supply even when the voltage of the power supply is lowered and can clearly and surely recognize this alarm display. And
【０００６】[0006]
【課題を解決するための手段】請求項１に記載のワイヤ
レスリモコンの送信器は、送信回路からの信号で送信子
の駆動を制御して前記送信子からリモコン信号を送出す
るワイヤレスリモコンの送信器において、送信子の駆動
電流を検出する電流検出部と、前記電流検出部で検出し
た電流が異常の場合に警報処理を行う制御部とを設けた
ことを特徴とする。A transmitter of a wireless remote controller according to claim 1, wherein the transmitter of the wireless remote controller controls driving of a transmitter by a signal from a transmitting circuit and sends a remote control signal from the transmitter. In the above, a current detecting section for detecting a drive current of the transmitter and a control section for performing an alarm process when the current detected by the current detecting section is abnormal are provided.
【０００７】請求項３に記載のワイヤレスリモコンの送
信器は、表示部で設定内容を表示し、送信回路からの前
記設定内容に基づく信号で送信子の駆動を制御して前記
送信子からリモコン信号を送出するワイヤレスリモコン
の送信器において、送信子の駆動電流を検出する電流検
出部と、前記電流検出部で検出した電流が異常の場合に
警報処理を行うとともに前記警報処理中は設定内容の表
示を行わない制御部とを設けたことを特徴とする。According to a third aspect of the present invention, in the transmitter of the wireless remote controller, the setting contents are displayed on the display unit, and the driving of the transmitter is controlled by the signal based on the setting contents from the transmitting circuit to control the remote controller signal from the transmitter. In the transmitter of the wireless remote controller that sends out, the current detection unit that detects the drive current of the transmitter and the alarm process when the current detected by the current detection unit is abnormal and the setting contents are displayed during the alarm process. And a control unit that does not perform.
【０００８】[0008]
【作用】請求項１の構成によると、電流検出部は、送信
子の駆動電流を検出して電源の電圧低下を検知する。制
御部は、電流検出部の電圧低下の検知に基づいて警報す
る。According to the structure of claim 1, the current detector detects the driving current of the transmitter to detect the voltage drop of the power supply. The control unit gives an alarm based on the detection of the voltage drop of the current detection unit.
【０００９】請求項３の構成によると、電流検出部は、
送信子の駆動電流を検出して電源の電圧低下を検知す
る。制御部は、電流検出部の電圧低下の検知に基づいて
警報するとともに設定内容を表示しない。According to the third aspect of the present invention, the current detecting section is
The drive current of the transmitter is detected to detect the voltage drop of the power supply. The control unit gives an alarm based on the detection of the voltage drop of the current detection unit and does not display the setting content.
【００１０】[0010]
【実施例】以下、本発明の一実施例を図１〜図４に基づ
いて説明する。なお、従来例を示した図５と同様の作用
をなすものには同一の符号を付けて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. It should be noted that components having the same functions as those of the conventional example shown in FIG.
【００１１】本実施例の送信器は図１に示すように構成
されている。ここでは、送出コードの発信動作は周知の
ため、その説明を省略する。電源として電池１２が２個
直列（約３ボルト）に接続されている。送信スイッチ１
が接続された送信回路用の送信ＬＳＩ２の内部には制御
部１９が設けられ、端子ａにはトランジスタ３，４と抵
抗９，１０，１１でエミッタフォロアを構成する駆動部
２０が接続されている。トランジスタ４にはエミッタに
抵抗９とコレクタにリモコン信号の送出用の送信子とし
ての赤外ＬＥＤ６が接続されている。また、トランジス
タ４のベースには、トランジスタ１４と抵抗１５，１６
で構成された電流検出部２１が接続され、この電流検出
部２１の出力は送信ＬＳＩ２の端子ｃに接続されてい
る。そして、送信ＬＳＩ２の端子ｂには、抵抗７を介し
て警報処理時に警報表示を行う可視ＬＥＤ８が接続され
ており、送信ＬＳＩ２の端子ｄ，ｅには表示部としての
液晶表示器１７が接続されている。The transmitter of this embodiment is constructed as shown in FIG. Here, since the transmission operation of the transmission code is well known, its description is omitted. Two batteries 12 are connected in series (about 3 volts) as a power source. Transmit switch 1
A control unit 19 is provided inside the transmission LSI 2 for the transmission circuit to which is connected, and a drive unit 20 that forms an emitter follower with transistors 3, 4 and resistors 9, 10, 11 is connected to the terminal a. . A resistor 9 is connected to the emitter of the transistor 4, and an infrared LED 6 is connected to the collector of the transistor 4 as a transmitter for transmitting a remote control signal. The base of the transistor 4 has a transistor 14 and resistors 15 and 16 at its base.
Is connected to the current detection unit 21, and the output of the current detection unit 21 is connected to the terminal c of the transmission LSI 2. A visible LED 8 for displaying an alarm during alarm processing is connected to a terminal b of the transmission LSI 2 via a resistor 7, and a liquid crystal display 17 as a display unit is connected to the terminals d and e of the transmission LSI 2. ing.
【００１２】また、図４は送信器の外観図であり１８は
ケースである。上記構成において、本実施例の制御部１
９は図３に示すように構成されており、制御部１９の動
作を図２の送信器の動作を示すタイムチャートに基づい
て説明する。図２のタイムチャートのＡ域において、＃
１で、送信スイッチ１のオン［図２の（ｇ）参照］を検
知すると、＃２で、送信ＬＳＩ２は端子ａよりコード信
号を駆動部２０へ出力し［図２の（ｆ）参照］、このコ
ード信号で駆動部２０のトランジスタ３をオンし、抵抗
１０を介してトランジスタ４をオンし、赤外ＬＥＤ６を
オンする［図２の（ｂ）参照］。これにより、赤外ＬＥ
Ｄ６から赤外光のリモコン信号を送出する。この際、ト
ランジスタ４のベース電位ＶB は、赤外ＬＥＤ６に流れ
る電流をＩEとすれば、ＶB ＝ＶBE＋ＩE ×抵抗９とな
り、ＩE に比例することになる。電池１２の電圧が正常
値［図２の（ｂ）参照］でＩE の値も所定値以上の正常
値である場合は、このＩE によって生じたＶB により、
トランジスタ４のベースに接続された電流検出部２１に
おいて、抵抗１５，１６を介してトランジスタ１４がオ
ンし、送信ＬＳＩ２の端子ｃにＩE の値の正常値に対応
する信号が入力される［図２の（ｃ）参照］。＃３と＃
４で、コード信号の送出中に端子ｃに入力された信号を
検知し、この信号により＃５で、赤外ＬＥＤ６の駆動電
流ＩE の値が正常値であると判定し＃１からの動作を繰
り返す。これにより、送信ＬＳＩ２は、電池１２の電圧
低下を示す警報処理を行わず可視ＬＥＤ８による警報表
示を行なわない［図２の（ｄ）参照］。この場合、液晶
表示器１７は設定内容の表示を継続する［図２の（ｅ）
参照］。FIG. 4 is an external view of the transmitter, and 18 is a case. In the above configuration, the control unit 1 of this embodiment
9 is configured as shown in FIG. 3, and the operation of the control unit 19 will be described based on the time chart showing the operation of the transmitter of FIG. In the area A of the time chart of FIG. 2, #
When it is detected that the transmission switch 1 is turned on [see (g) of FIG. 2] at 1, the transmission LSI 2 outputs a code signal from the terminal a to the drive unit 20 at # 2 [see (f) of FIG. 2]. This code signal turns on the transistor 3 of the drive unit 20, turns on the transistor 4 via the resistor 10, and turns on the infrared LED 6 [see (b) of FIG. 2]. This allows infrared LE
An infrared remote control signal is transmitted from D6. At this time, the base potential V B of the transistor 4, if the current flowing through the infrared LED6 and I E, V B = V BE + I E × resistor 9, and the will be proportional to I E. If the voltage of the battery 12 is a value also predetermined value or more normal values of I E with normal values [(b), see Fig. 2] is a V B generated by the I E,
In the current detector 21 connected to the base of the transistor 4, the transistor 14 is turned on via the resistors 15 and 16, and the signal corresponding to the normal value of I E is input to the terminal c of the transmission LSI 2 [Fig. 2 (c)]. # 3 and #
At 4, the signal input to the terminal c during the transmission of the code signal is detected, and at this signal, it is determined at # 5 that the value of the drive current I E of the infrared LED 6 is a normal value. repeat. As a result, the transmission LSI 2 does not perform the alarm process indicating the voltage drop of the battery 12 and does not perform the alarm display by the visible LED 8 [see (d) of FIG. 2]. In this case, the liquid crystal display 17 continues to display the setting contents [(e) in FIG. 2].
reference].
【００１３】ここで、図２のタイムチャートのＢ域にお
いて、電池１２が消耗して電圧低下し内部抵抗が大きく
なった場合は、電池１２は通電時の電圧降下が大きくな
り電圧は異常値［図２の（ａ）参照］となる。この状態
で送信スイッチ１をオンする［図２の（ｇ）参照］と、
赤外ＬＥＤ６の駆動電流ＩE の値は、信号の初期（リー
ダ）部分では正常値であっても、データ部分では大きく
低下し異常値となる［図２の（ｂ）参照］。このとき、
トランジスタ４のベース電位ＶB の値も低下して、トラ
ンジスタ１４はオフとなり、送信ＬＳＩ２の端子ｃにＩ
E の値の異常値に対応する信号が入力される［図２の
（ｃ）参照］。そのため、送信ＬＳＩ２はコード信号の
送出後に［図２の（ｆ）参照］、＃５で赤外ＬＥＤ６の
駆動電流Ｉ E の値が異常値であると判定し、＃６と＃７
で電池の電圧低下を示す警報処理を行い可視ＬＥＤ８に
よる警報表示を所定の時間だけ行う［図２の（ｄ）参
照］。この場合、警報処理中は液晶表示器１７の消滅
（全面オフ）動作を行ない［図２の（ｅ）参照］、電池
が寿命であることを警報する。この警報処理の完了後に
＃１からの動作を繰り返す。Here, in the area B of the time chart of FIG.
The battery 12 is exhausted, the voltage drops, and the internal resistance increases.
Battery 12 has a large voltage drop when energized.
The voltage becomes an abnormal value [see (a) in FIG. 2]. This state
When the transmission switch 1 is turned on by [see (g) of FIG. 2],
Driving current I of infrared LED 6E The value of
D) part is a normal value, but is large in the data part
It decreases and becomes an abnormal value [see (b) of FIG. 2]. At this time,
Base potential V of transistor 4B The value of
The transistor 14 is turned off, and I is connected to the terminal c of the transmission LSI 2.
E The signal corresponding to the abnormal value of
See (c)]. Therefore, the transmission LSI 2 outputs the code signal.
After sending out [see (f) of FIG. 2], the infrared LED 6 is turned on in # 5.
Drive current I E Is determined to be an abnormal value, and # 6 and # 7
The alarm LED indicating that the battery voltage has dropped is displayed on the visible LED 8.
Warning display for a predetermined time [See (d) in Figure 2
Teru]. In this case, the liquid crystal display 17 disappears during the alarm process.
(All off) operation is performed [see (e) of FIG. 2], battery
Warns that is the end of life. After completion of this alarm processing
The operation from # 1 is repeated.
【００１４】この構成により、電池１２の電圧が低下し
た状態でも、電池１２の電圧低下の検知を正確に行なう
とともに、この警報表示が明瞭に行え確実に認識でき
る。上記実施例では、送信子として赤外ＬＥＤ６を使用
して赤外光のリモコン信号を送出するよう構成したが、
送信子としてリモコン信号をワイヤレスで送出できる他
の素子を使用して構成しても同様に実施できる。With this configuration, even when the voltage of the battery 12 is low, the voltage drop of the battery 12 can be accurately detected, and the alarm display can be clearly displayed and reliably recognized. In the above embodiment, the infrared LED 6 is used as the transmitter to transmit the infrared remote control signal.
The same operation can be performed by using another element capable of wirelessly transmitting a remote control signal as a transmitter.
【００１５】また、本発明は上記実施例に示すように、
電源として電池１２を使用した場合に、特に効果が得ら
れる。The present invention, as shown in the above embodiment,
A particular effect is obtained when the battery 12 is used as the power source.
【００１６】[0016]
【発明の効果】請求項１の構成によれば、電流検出部で
送信子の駆動電流を検出して、電源の電圧低下を検知
し、制御部で警報処理を行うようにしたため、電源の消
耗を正確に検知することができるとともに、送信子の断
線不良や部品故障などの異常を判定することができる。According to the first aspect of the present invention, the current detector detects the drive current of the transmitter to detect the voltage drop of the power supply, and the controller performs the alarm process. Can be accurately detected, and an abnormality such as a disconnection defect of the transmitter or a component failure can be determined.
【００１７】請求項２の構成によれば、警報処理はリモ
コン信号の送出後に行うようにしたため、リモコン信号
の送出後に電源の電圧が回復（上昇）した状態で安定な
警報表示を行うことができる。According to the second aspect of the present invention, since the alarm processing is performed after the remote control signal is transmitted, stable alarm display can be performed in a state where the voltage of the power source is recovered (increased) after the remote control signal is transmitted. .
【００１８】請求項３の構成によれば、警報処理中は、
表示部の設定内容の表示を行わないようにしたため、警
報処理の状態を確実に認識することができるとともに、
警報表示の誤認識が解消できる。According to the structure of claim 3, during the alarm processing,
Since the setting contents on the display are not displayed, it is possible to reliably recognize the status of alarm processing.
False recognition of alarm display can be eliminated.
【００１９】請求項４の構成によれば、電流検出部は、
送信子の駆動電流を駆動部のエミッタフォロアのベース
電位で検出するよう構成したため、全体の構成を汎用性
が高い回路で実現できるとともに電流検出部の回路の追
加によるコストアップを最小限に押さえられる。According to the structure of claim 4, the current detecting section is
Since the drive current of the transmitter is detected by the base potential of the emitter follower of the drive unit, the overall configuration can be realized with a highly versatile circuit and the cost increase due to the addition of the current detection circuit can be minimized. .
【図１】本発明の一実施例のワイヤレスリモコンの送信
器の構成図FIG. 1 is a configuration diagram of a transmitter of a wireless remote controller according to an embodiment of the present invention.
【図２】同実施例の送信器の動作を示すタイムチャート
図FIG. 2 is a time chart diagram showing the operation of the transmitter of the embodiment.
【図３】同実施例の制御部のフローチャート図FIG. 3 is a flowchart of a control unit of the same embodiment.
【図４】ワイヤレスリモコンの送信器の外観図FIG. 4 is an external view of a transmitter of a wireless remote controller.
【図５】従来のワイヤレスリモコンの送信器の構成図FIG. 5 is a block diagram of a transmitter of a conventional wireless remote controller.
２ 送信回路（送信ＬＳＩ） ６ 送信子（赤外ＬＥＤ） １７ 表示部（液晶表示器） １９ 制御部 ２０ 駆動部 ２１ 電流検出部 2 transmitter circuit (transmitter LSI) 6 transmitter (infrared LED) 17 display unit (liquid crystal display) 19 control unit 20 drive unit 21 current detection unit
Claims (4)
御して前記送信子からリモコン信号を送出するワイヤレ
スリモコンの送信器において、送信子の駆動電流を検出
する電流検出部と、前記電流検出部で検出した電流が異
常の場合に警報処理を行う制御部とを設けたワイヤレス
リモコンの送信器。1. In a transmitter of a wireless remote controller, which controls driving of a transmitter by a signal from a transmitting circuit to send a remote control signal from the transmitter, a current detector for detecting a driving current of the transmitter, and the current. A transmitter of a wireless remote controller provided with a control unit that performs alarm processing when the current detected by the detection unit is abnormal.
出後に行うよう構成した請求項１に記載のワイヤレスリ
モコンの送信器。2. The transmitter of the wireless remote controller according to claim 1, wherein the control unit is configured to perform the alarm processing after transmitting the remote control signal.
らの前記設定内容に基づく信号で送信子の駆動を制御し
て前記送信子からリモコン信号を送出するワイヤレスリ
モコンの送信器において、送信子の駆動電流を検出する
電流検出部と、前記電流検出部で検出した電流が異常の
場合に警報処理を行うとともに前記警報処理中は設定内
容の表示を行わない制御部とを設けたワイヤレスリモコ
ンの送信器。3. A transmitter of a wireless remote controller, which displays setting contents on a display unit, controls driving of a transmitter by a signal based on the setting contents from a transmitting circuit, and sends a remote control signal from the transmitter. A wireless remote controller provided with a current detection unit that detects the drive current of the child and a control unit that performs alarm processing when the current detected by the current detection unit is abnormal and does not display the setting contents during the alarm processing. Transmitter.
記送信子を駆動する駆動部のエミッタフォロアのベース
を介して検出するよう構成した請求項１に記載のワイヤ
レスリモコンの送信器。4. The transmitter of the wireless remote controller according to claim 1, wherein the current detection unit is configured to detect the drive current of the transmitter via the base of the emitter follower of the drive unit that drives the transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5044223A JPH06261381A (en) | 1993-03-05 | 1993-03-05 | Transmitter for wireless remote controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5044223A JPH06261381A (en) | 1993-03-05 | 1993-03-05 | Transmitter for wireless remote controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06261381A true JPH06261381A (en) | 1994-09-16 |
Family
ID=12685547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5044223A Pending JPH06261381A (en) | 1993-03-05 | 1993-03-05 | Transmitter for wireless remote controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06261381A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6483622B1 (en) | 1998-03-30 | 2002-11-19 | Nec Corporation | Mobile data terminal with an infrared communication capability |
| JP2006339739A (en) * | 2005-05-31 | 2006-12-14 | Matsushita Electric Ind Co Ltd | Communication device |
-
1993
- 1993-03-05 JP JP5044223A patent/JPH06261381A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6483622B1 (en) | 1998-03-30 | 2002-11-19 | Nec Corporation | Mobile data terminal with an infrared communication capability |
| JP2006339739A (en) * | 2005-05-31 | 2006-12-14 | Matsushita Electric Ind Co Ltd | Communication device |
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