JP2743547B2 - Radio selective call receiver sensitivity tester - Google Patents
Radio selective call receiver sensitivity testerInfo
- Publication number
- JP2743547B2 JP2743547B2 JP2023498A JP2349890A JP2743547B2 JP 2743547 B2 JP2743547 B2 JP 2743547B2 JP 2023498 A JP2023498 A JP 2023498A JP 2349890 A JP2349890 A JP 2349890A JP 2743547 B2 JP2743547 B2 JP 2743547B2
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- control unit
- main control
- field intensity
- storage unit
- 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 - Lifetime
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は無線選択呼出受信機感度試験装置に関し、特
に同時に複数の対象物の受信感度試験を行う無線選択呼
出受信機感度試験装置に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio selective call receiver sensitivity test apparatus, and more particularly, to a radio selective call receiver sensitivity test apparatus for simultaneously performing a reception sensitivity test on a plurality of objects.
一般に、無線選択呼出受信機（以下受信機と称す）
は、その性能評価のために製造時または保守時に受信感
度を測定する必要がある。ここで、受信感度の測定（以
下感度測定と称す）とは、受信機が応答する最低の電界
強度を測定することである。その測定方法は、次の通り
である。すなわち、符号化された信号により変調される
搬送波を受信機に受信させ、受信機が受信応答動作を行
えば、受信機に送出する電波の電界強度を減少させる。
受信機が受信応答動作を行わなければ受信機に送出する
電界強度を増加させる。これを繰り返して、受信機が応
答する最低の電界強度を測定する。Generally, a radio selective calling receiver (hereinafter referred to as a receiver)
It is necessary to measure the reception sensitivity at the time of manufacture or maintenance for its performance evaluation. Here, the measurement of the reception sensitivity (hereinafter referred to as sensitivity measurement) is to measure the lowest electric field strength to which the receiver responds. The measuring method is as follows. That is, when the receiver receives a carrier modulated by the encoded signal and performs a reception response operation, the electric field intensity of the radio wave transmitted to the receiver is reduced.
If the receiver does not perform the reception response operation, the electric field strength transmitted to the receiver is increased. This is repeated to measure the lowest electric field strength to which the receiver responds.
第４図は、従来の無線選択呼出受信機感度試験装置の
一例を示すブロック図である。FIG. 4 is a block diagram showing an example of a conventional radio selective call receiver sensitivity test apparatus.
第４図を見るに主制御部１と、主制御部１より試験を
行う電界強度を入力して記憶しまた出力する電界強度記
憶部２と、主制御部１より複数の試験対象の動作電界強
度を入力し記憶しまた出力する動作電界強度記憶部３
と、主制御部１に制御され符号化された信号を発生する
エンコーダ５と、主制御部１に制御されエンコーダ５の
出力する符号化された信号により変調される搬送波を出
力する信号発生器６と、外来の妨害波を遮断する電磁遮
断手段７と、電磁遮断手段７の中に設置され信号発生器
６より出力される変調された搬送波を送信する送信アン
テナ８と、電磁遮断手段７の中に設置され受信機を配置
する位置を調整する位置調整機構11と、電磁遮断手段７
の中に設置され試験対象の受信動作を検出し動作検出信
号を主制御部１へ出力する複数の動作検出手段10とを含
んで構成される。As shown in FIG. 4, a main control unit 1, an electric field intensity storage unit 2 for inputting and storing and outputting an electric field intensity to be tested from the main control unit 1, and operating electric fields of a plurality of test objects from the main control unit 1. Operating field strength storage unit 3 for inputting, storing and outputting strength
And an encoder 5 controlled by the main control unit 1 to generate an encoded signal; and a signal generator 6 controlled by the main control unit 1 to output a carrier modulated by the encoded signal output from the encoder 5 An electromagnetic blocking means 7 for blocking an external interference wave; a transmitting antenna 8 installed in the electromagnetic blocking means 7 for transmitting a modulated carrier wave output from the signal generator 6; Position adjusting mechanism 11 for adjusting the position where the receiver is disposed,
And a plurality of operation detecting means 10 for detecting a receiving operation of the test object and outputting an operation detection signal to the main control unit 1.
主制御部１は、ある電界強度値ａを電界強度記憶部２
と信号発生器６に設定する。エンコーダ５は、主制御部
１により制御され符号化された信号を出力する。信号発
生器６が発生する搬送波は、エンコーダ５が発生する符
号化された信号により変調され、主制御部１により設定
された電界強度で、送信アンテナ８へ送られる。その変
調された搬送波は、送信アンテナ８によって電波として
送信される。複数の受信機９は、互いに同じ電界強度と
なる場所に位置調整機構11により配置されている。電界
強度は、送信アンテナ８に近いほど大きく、遠いほど小
さくなるので位置調整機構11により受信機９が同じ電界
強度の位置に配置されるように調整されている。複数の
受信機９は、送信アンテナ８が送信する電波を解読し自
己の呼出番号が含まれていたならば、受信応答動作とし
てフリッカ表示、呼出音発生、メッセージ表示等を行
う。複数の動作検出手段10は、複数の受信機９と一対一
に関連付けられており、対応する受信機９の受信応答動
作を検出し、電気信号に変換して主制御部１に出力す
る。主制御部１は、動作検出手段10より個々の受信機９
の動作状況を入力し、受信応答動作を行った受信機９が
あれば、電界強度記憶部２からこのときの電界強度値ａ
を読み出す。そして、この電界強度値ａを受信動作を行
った受信機９と関連付けて動作電界強度記憶部３に動作
電界強度値ｂとして出力する。動作電界強度記憶部３で
は、既に特定の受信機９に関連付けられた動作電界強度
値ｂがあれば更新される。その後、電界強度値ａを減少
させ、電界強度記憶部２と信号発生器６に設定する。受
信機９が１台でも受信応答動作を行えば、これを繰り返
す。受信機９が１台も受信応答動作を行わなければ、電
界強度記憶部２から電界強度値ａを読みだし増加させ、
電界強度記憶部２と信号発生器６に設定する。これらを
繰り返し、受信機９の感度測定を行う。なお、電磁遮断
手段７は、外来の妨害波から送信アンテナ８と受信機９
の間の空間を遮断するために用いられる。The main control unit 1 stores a certain electric field intensity value a in an electric field intensity storage unit 2.
Is set in the signal generator 6. The encoder 5 outputs a signal controlled and encoded by the main control unit 1. The carrier generated by the signal generator 6 is modulated by a coded signal generated by the encoder 5 and sent to the transmitting antenna 8 with the electric field strength set by the main controller 1. The modulated carrier is transmitted as a radio wave by the transmission antenna 8. The plurality of receivers 9 are arranged by the position adjustment mechanism 11 at locations where the electric field strengths are the same. The electric field strength increases as the distance from the transmitting antenna 8 increases and decreases as the distance from the transmitting antenna 8 increases. Therefore, the position adjusting mechanism 11 adjusts the electric field strength so that the receiver 9 is arranged at the same electric field intensity. The plurality of receivers 9 decode the radio wave transmitted by the transmitting antenna 8 and perform flicker display, ringing tone generation, message display, and the like as a reception response operation if their own calling number is included. The plurality of operation detecting means 10 are associated with the plurality of receivers 9 in a one-to-one relationship, and detect a reception response operation of the corresponding receiver 9, convert the received response operation into an electric signal, and output the electric signal to the main control unit 1. The main control unit 1 controls the individual receivers 9 by the operation detecting means 10.
Is input, and if there is a receiver 9 that has performed the reception response operation, the electric field intensity value a at this time is stored in the electric field intensity storage unit 2.
Is read. Then, the electric field strength value a is output as the operating electric field strength value b to the operating electric field strength storage unit 3 in association with the receiver 9 that has performed the receiving operation. The operating field strength storage unit 3 updates the operating field strength value b associated with the specific receiver 9 if it already exists. After that, the electric field intensity value a is reduced and set in the electric field intensity storage unit 2 and the signal generator 6. This operation is repeated if at least one receiver 9 performs the reception response operation. If no receiver 9 performs the reception response operation, the electric field intensity value a is read from the electric field intensity storage unit 2 and increased,
It is set in the electric field strength storage unit 2 and the signal generator 6. These are repeated, and the sensitivity of the receiver 9 is measured. In addition, the electromagnetic cut-off means 7 transmits the transmitting antenna 8 and the receiver 9 from the external interference wave.
Used to block the space between
第５図は従来の技術による無線選択呼出受信機感度試
験装置の一例における主制御部１の動作を説明するため
のフローチャートである。FIG. 5 is a flowchart for explaining the operation of the main control section 1 in an example of the conventional radio selective calling receiver sensitivity test apparatus.
受信機の感度測定では、電界強度を順に下げる方法と
上げる方法があるが、ここでは順に下げる場合について
説明する。In the sensitivity measurement of the receiver, there are a method of sequentially decreasing the electric field intensity and a method of increasing the electric field intensity. Here, the case of sequentially decreasing the electric field intensity will be described.
感度試験を開始する前に主制御部１は、エンコーダ５
の呼出番号を設定する。Before starting the sensitivity test, the main control unit 1
Set the calling number of.
さらに信号発生器６に搬送波の周波数を設定してお
く。Further, the frequency of the carrier is set in the signal generator 6.
電界強度値を電界強度記憶部２、及び、信号発生器６
に設定する。すると受信機に対する呼び出しが開始され
る。The electric field intensity value is stored in the electric field intensity storage unit 2 and the signal generator 6
Set to. Then, a call to the receiver is started.
主制御部１は、動作検出部10により受信機の受信応答
動作の有無を監視する。The main control unit 1 monitors the presence or absence of the reception response operation of the receiver by the operation detection unit 10.
受信応答動作があれば、電界強度記憶部２より電界強
度値を読みだし、受信応答動作を行った受信機と電界強
度値を関連付けて動作電界強度記憶部３へ出力する。If there is a reception response operation, the electric field intensity value is read from the electric field intensity storage unit 2, and the receiver that has performed the reception response operation is associated with the electric field intensity value and output to the operation electric field intensity storage unit 3.
その後、電界強度値を減少させて、より繰り返す。Thereafter, the electric field intensity value is reduced and the operation is repeated.
受信応答動作がなければ、電界強度記憶部２より電界
強度値を 読み出し、外部にその値を感動測定結果として出力す
る。電界強度を順に上げる場合も、ほぼ同様にして感度
測定が行われる。If there is no reception response operation, the controller reads out the electric field intensity value from the electric field intensity storage unit 2 and outputs the value as an impression measurement result to the outside. When increasing the electric field strength in order, the sensitivity measurement is performed in substantially the same manner.
上述した従来の無線選択呼出受信機感度試験装置で
は、複数の受信機が互いに同じ電界強度となる場所に配
置されなければならない。しかし、電波の周波数により
複数の経路の損失が異なるために、試験対象の受信機の
周波数が変わる度に各受信機毎に位置を調整しなければ
ならない。このため、受信機を精密位置決めするための
位置調節機構が必要であり、設備コストが高いという欠
点がある。また、周波数が変わる度に位置の調整を行う
作業が必要なために、実質の試験時間が長く、試験コス
トが高いという欠点がある。In the above-described conventional radio selective calling receiver sensitivity test apparatus, a plurality of receivers must be arranged at locations where the same electric field strength is obtained. However, since the loss of the plurality of paths differs depending on the frequency of the radio wave, the position must be adjusted for each receiver every time the frequency of the receiver under test changes. For this reason, a position adjusting mechanism for precisely positioning the receiver is required, and there is a disadvantage that the equipment cost is high. In addition, since an operation of adjusting the position is required every time the frequency is changed, there is a disadvantage that the actual test time is long and the test cost is high.
本発明の無線選択呼出受信機感度試験装置は、主制御
部と、該主制御部より試験を行う電界強度を入力して記
憶しまた出力する電界強度記憶部と、前記主制御部より
複数の試験対象の動作電界強度を入力して記憶しまた出
力する動作電界強度記憶部と、予め記憶した周波数及び
測定経路毎の複数の損失補正値を前記制御部に出力する
経路損失補正値記憶部と、前記主制御部に制御され符号
化された信号を発生するエンコーダと、前記主制御部に
制御され該エンコーダの出力する符号化された信号によ
り変調される搬送波を出力する信号発生器と、外来の妨
害波を遮断する電磁遮断手段と、該電磁遮断手段の中に
設置され前記信号発生器より出力される変調された搬送
波を送信する送信アンテナと、前記電磁遮断手段の中に
設置され試験対象の受信動作を検出し動作検出信号を前
記主制御部へ出力する複数の動作検出手段とを備えて構
成される。A radio selective call receiver sensitivity test apparatus according to the present invention includes a main control unit, an electric field intensity storage unit that inputs, stores, and outputs an electric field intensity to be tested from the main control unit, and a plurality of electric field intensity storage units. An operating field intensity storage unit for inputting and storing and outputting an operating field intensity of a test object, a path loss correction value storage unit for outputting a plurality of loss correction values for each frequency and measurement path stored in advance to the control unit, An encoder controlled by the main controller to generate an encoded signal; a signal generator controlled by the main controller to output a carrier modulated by the encoded signal output from the encoder; A transmitting antenna for transmitting a modulated carrier wave output from the signal generator, the transmitting antenna being installed in the electromagnetic shielding means, and a test object being installed in the electromagnetic shielding means. of Configured to motion detection signal to detect the signal operation and a plurality of operation detection means for outputting to the main control unit.
次に、本発明の実施例について図面を参照して詳細に
説明する。Next, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は、本発明の一実施例の構成を示すブロック図
である。FIG. 1 is a block diagram showing the configuration of one embodiment of the present invention.
まず本実施例の構成について説明する。 First, the configuration of the present embodiment will be described.
本実施例は主制御部１と、主制御部１より試験を行う
電界強度を入力し記憶しまた出力する電界強度記憶部２
と、主制御部１より複数の試験対象の動作電界強度を入
力して記憶しまた出力する動作電界強度記憶部３と、予
め記憶した周波数及び測定経路毎の複数の損失補正値を
制御部１の要求により出力する経路損失補正値記憶部４
と、主制御部１に制御され符号化された信号を発生する
エンコーダ５と、主制御部１に制御されエンコーダ５の
出力する符号化された信号により変調される搬送波を出
力する信号発生器６と、外来の妨害波を遮断する電磁遮
断手段７と、電磁遮断手段７の中に設置され信号発生器
６より出力される変調された搬送波を送信する送信アン
テナ８と、電磁遮断手段７の中に設置され試験対象の受
信動作を検出し動作検出信号を主制御部１へ出力する複
数の動作検出手段10とを含んで構成される。In this embodiment, a main control unit 1 and an electric field intensity storage unit 2 for inputting, storing and outputting the electric field intensity to be tested from the main control unit 1 are described.
An operating electric field intensity storage unit 3 for inputting, storing and outputting operating electric field intensities of a plurality of test objects from the main control unit 1; and a control unit 1 for storing a plurality of loss correction values for each frequency and measurement path stored in advance. Path loss correction value storage unit 4 that outputs in response to the request
And an encoder 5 controlled by the main control unit 1 to generate an encoded signal; and a signal generator 6 controlled by the main control unit 1 to output a carrier modulated by the encoded signal output from the encoder 5 An electromagnetic blocking means 7 for blocking an external interference wave; a transmitting antenna 8 installed in the electromagnetic blocking means 7 for transmitting a modulated carrier wave output from the signal generator 6; And a plurality of operation detecting means 10 for detecting a receiving operation of the test object and outputting an operation detection signal to the main control unit 1.
次に、本実施例の動作について述べる。 Next, the operation of this embodiment will be described.
主制御部１は、ある電界強度値ａを電界強度記憶部２
と信号発生器６に設定する。エンコーダ５は、主制御部
１により制御され符号化された信号を出力する。信号発
生器６が発生する搬送波は、エンコーダ５が発生する符
号化された信号により変調され、主制御部１により設定
された電界強度で、送信アンテナ８へ送られる。その変
調された搬送波は、送信アンテナ８によって電波として
送信される。The main control unit 1 stores a certain electric field intensity value a in an electric field intensity storage unit 2.
Is set in the signal generator 6. The encoder 5 outputs a signal controlled and encoded by the main control unit 1. The carrier generated by the signal generator 6 is modulated by a coded signal generated by the encoder 5 and sent to the transmitting antenna 8 with the electric field strength set by the main controller 1. The modulated carrier is transmitted as a radio wave by the transmission antenna 8.
複数の受信機９が予め決められた場所に配置されてい
る。複数の受信機９は、送信アンテナ８が送信する電波
を解読し自己の呼出番号が含まれていたならば、受信応
答動作としてフリッカ表示、呼出音発生、メッセージ表
示等を行う。複数の動作検出手段10は、複数の受信機９
と一対一に関連付けられており、対応する受信機９の受
信応答動作を検出し、電気信号に変換して主制御部１に
出力する。主制御部１は、動作検出手段10より個々の受
信機９の動作状況を入力し、受信応答動作を行った受信
機９があれば、電界強度記憶部２からこのときの電界強
度値ａを読み出す。そして、この電界強度値ａを受信動
作を行った受信機９と関連付けて動作電界強度記憶部３
に動作電界強度値ｂとして出力する。動作電界強度記憶
部３では、既に特定の受信機９に関連付けられた動作電
界強度値ａがあれば、更新される。その後、電界強度値
ａを減少させ、電界強度記憶部２と信号発生器６に設定
する。受信機９が１台でも受信応答動作を行えば、これ
を繰り返す。受信機９が１台も受信応答動作を行わなけ
れば、電界強度記憶部２から電界強度値ａを読み出し増
加させ、電界強度記憶部２と信号発生器６に設定する。
これらを繰り返えし、受信機９の感度測定を行う。すべ
ての受信機９の測定値が求まったならば、主制御部１
は、そのときの周波数を経路損失補正値記憶部４に出力
する。A plurality of receivers 9 are arranged at predetermined locations. The plurality of receivers 9 decode the radio wave transmitted by the transmitting antenna 8 and perform flicker display, ringing tone generation, message display, and the like as a reception response operation if their own calling number is included. The plurality of operation detecting means 10 include the plurality of receivers 9
The one-to-one correspondence is detected, the reception response operation of the corresponding receiver 9 is detected, converted into an electric signal, and output to the main control unit 1. The main control unit 1 inputs the operation status of each of the receivers 9 from the operation detection unit 10 and, if there is a receiver 9 that has performed the reception response operation, stores the electric field intensity value a at this time from the electric field intensity storage unit 2. read out. Then, the operating electric field strength storage unit 3 associates the electric field strength value a with the receiver 9 that has performed the receiving operation.
Is output as the operating electric field strength value b. In the operating electric field strength storage unit 3, if there is an operating electric field strength value a already associated with the specific receiver 9, it is updated. After that, the electric field intensity value a is reduced and set in the electric field intensity storage unit 2 and the signal generator 6. This operation is repeated if at least one receiver 9 performs the reception response operation. If none of the receivers 9 performs the reception response operation, the electric field intensity value a is read from the electric field intensity storage unit 2 and is increased, and is set in the electric field intensity storage unit 2 and the signal generator 6.
These operations are repeated to measure the sensitivity of the receiver 9. When the measured values of all the receivers 9 are obtained, the main control unit 1
Outputs the frequency at that time to the path loss correction value storage unit 4.
経路損失補正値記録部４は、主制御部１よりその周波
数を入力すると各受信機毎の測定経路の経路損失補正値
ｃを入力する。主制御部１は、その経路損失補正値ｃを
入力し、各受信機の感度測定値を補正し、外部に感度測
定結果として出力する。なお、電磁遮断手段７は、外来
の妨害波から送信アンテナ８と受信機９の間の空間を遮
断するために用いられる。The path loss correction value recording section 4 receives the frequency from the main control section 1 and inputs the path loss correction value c of the measurement path for each receiver. The main control unit 1 inputs the path loss correction value c, corrects the sensitivity measurement value of each receiver, and outputs the result to the outside as a sensitivity measurement result. The electromagnetic blocking means 7 is used to block a space between the transmitting antenna 8 and the receiver 9 from an external interference wave.
第２図は本発明の一実施例における主制御部１の動作
を説明するためのフローチャートである。FIG. 2 is a flowchart for explaining the operation of the main control unit 1 in one embodiment of the present invention.
受信機の感度測定では、電界強度を順に下げる方法と
上げる方法があるが、ここでは順に下げる場合について
説明する。In the sensitivity measurement of the receiver, there are a method of sequentially decreasing the electric field intensity and a method of increasing the electric field intensity. Here, the case of sequentially decreasing the electric field intensity will be described.
感度試験を開始する前に主制御部１は、エンコーダ５
の呼出番号を設定する。Before starting the sensitivity test, the main control unit 1
Set the calling number of.
さらに信号発生器６に搬送波の周波数を設定してお
く。Further, the frequency of the carrier is set in the signal generator 6.
電界強度値を電界強度記憶部２、及び、信号発生器６
に設定する。すると受信機に対する呼び出しが開始され
る。The electric field intensity value is stored in the electric field intensity storage unit 2 and the signal generator 6
Set to. Then, a call to the receiver is started.
主制御部１は、動作検出部10により受信機の受信応答
動作の有無を監視する。The main control unit 1 monitors the presence or absence of the reception response operation of the receiver by the operation detection unit 10.
受信応答動作があれば、電界強度記憶部２より電界強
度値を読みだし、受信応答動作を行った受信機と電界強
度値を関連付けて動作電界強度記憶部３へ出力する。If there is a reception response operation, the electric field intensity value is read from the electric field intensity storage unit 2, and the receiver that has performed the reception response operation is associated with the electric field intensity value and output to the operation electric field intensity storage unit 3.
その後、電界強度値を減少させて、より繰り返す。Thereafter, the electric field intensity value is reduced and the operation is repeated.
受信応答動作がなければ、電界強度記憶部２より電界
強度値を読みだす。If there is no reception response operation, the electric field intensity value is read from the electric field intensity storage unit 2.
さらに経路損失補正値記憶部４よりその周波数におけ
る各経路毎の補正値を読み出し、で得た電界強度値を
補正し、外部にその値を感度測定結果として出力する。Further, the correction value for each path at that frequency is read out from the path loss correction value storage unit 4, the electric field strength value obtained by the correction is corrected, and the value is output to the outside as a sensitivity measurement result.
電界強度を順に上げる場合も、ほぼ同様にして感度測定
が行われる。When increasing the electric field strength in order, the sensitivity measurement is performed in substantially the same manner.
第３図は、経路損失補正値記憶部を説明するための図
である。経路損失補正値記憶部では、周波数１〜ｍに対
し、経路１〜ｎまでの損失補正値Cmnを予め記憶してい
る。主制御部が出力する周波数ｍを入力すると経路損失
補正値記憶部は、その周波数ｍにおける各測定経路毎の
損失補正値Cm1〜Cmnを順番に出力する。主制御部は、こ
の経路損失補正値で動作電界強度値を補正する。FIG. 3 is a diagram for explaining a path loss correction value storage unit. The path loss correction value storage unit previously stores loss correction values Cmn for paths 1 to n for frequencies 1 to m. When the frequency m output from the main control unit is input, the path loss correction value storage unit sequentially outputs the loss correction values Cm1 to Cmn for each measurement path at the frequency m. The main control unit corrects the operating electric field intensity value with the path loss correction value.
本発明の無線選択呼出受信機感度試験装置では、経路
損失補正値記憶部を設けることにより、複数の受信機の
配置位置と周波数による経路損失の誤差を補正するの
で、受信機を精密に位置決めする機構が不要であり、設
備コストが安価であるという効果がある。また、受信機
の周波数が変わる度に位置の調整を行う作業が不要なた
め、実質の試験時間が短くなり、試験コストが安価にな
るという効果がある。In the radio selective calling receiver sensitivity test apparatus of the present invention, by providing the path loss correction value storage unit, the path loss error due to the arrangement position and frequency of the plurality of receivers is corrected, so that the receiver is precisely positioned. There is an effect that no mechanism is required and the equipment cost is low. Further, since it is not necessary to adjust the position every time the frequency of the receiver changes, there is an effect that the actual test time is shortened and the test cost is reduced.
第１図は本発明の一実施例の構成を示すブロック図、第
２図は本発明の一実施例における主制御部の動作を説明
するためのフローチャート、第３図は経路損失補正値記
憶部を説明するための図、第４図は従来の無線選択呼出
受信機感度試験装置の一例を示すブロック図、第５図は
無線選択呼出受信機感度試験装置の主制御部の動作を説
明するためのフローチャートである。 １……主制御部、２……電界強度記憶部、３……動作電
界強度記憶部、４……経路損失補正値記憶部、５……エ
ンコーダ、６……信号発生器、７……電磁遮断手段、８
……送信アンテナ、９……無線選択呼出受信機、10……
動作検出手段、ａ……電界強度値、ｂ……動作電界強度
値、ｃ……経路損失補正値。FIG. 1 is a block diagram showing the configuration of one embodiment of the present invention, FIG. 2 is a flowchart for explaining the operation of a main control unit in one embodiment of the present invention, and FIG. 3 is a path loss correction value storage unit. FIG. 4 is a block diagram showing an example of a conventional radio selective call receiver sensitivity test apparatus, and FIG. 5 is a diagram for explaining the operation of a main control unit of the wireless selective call receiver sensitivity test apparatus. It is a flowchart of FIG. DESCRIPTION OF SYMBOLS 1 ... Main control part, 2 ... Electric field strength storage part, 3 ... Operating electric field strength storage part, 4 ... Path loss correction value storage part, 5 ... Encoder, 6 ... Signal generator, 7 ... Electromagnetic Blocking means, 8
…… Transmit antenna, 9 …… Wireless selective call receiver, 10 ……
Operation detecting means, a: electric field intensity value, b: operating electric field intensity value, c: path loss correction value.
Claims (1)
界強度を入力して記憶しまた出力する電界強度記憶部
と、前記主制御部より複数の試験対象の動作電界強度を
入力して記憶しまた出力する動作電界強度記憶部と、予
め記憶した周波数及び測定経路毎の複数の損失補正値を
前記制御部に出力する経路損失補正値記憶部と、前記主
制御部に制御され符号化された信号を発生するエンコー
ダと、前記主制御部に制御され該エンコーダの出力する
符号化された信号により変調される搬送波を出力する信
号発生器と、外来の妨害波を遮断する電磁遮断手段と、
該電磁遮断手段の中に設置され前記信号発生器より出力
される変調された搬送波を送信する送信アンテナと、前
記電磁遮断手段の中に設置され試験対象の受信動作を検
出し動作検出信号を前記主制御部へ出力する複数の動作
検出手段とを備えて成ることを特徴とする無線選択呼出
受信機感度試験装置。1. A main control unit, an electric field intensity storage unit for inputting and storing and outputting an electric field intensity to be tested from the main control unit, and inputting operating electric field intensities of a plurality of test objects from the main control unit. An operating electric field strength storage unit for storing and outputting the same, a path loss correction value storage unit for outputting a plurality of loss correction values for each frequency and measurement path stored in advance to the control unit, and a control unit controlled by the main control unit. An encoder that generates an encoded signal; a signal generator that is controlled by the main control unit and outputs a carrier wave that is modulated by the encoded signal output by the encoder; and an electromagnetic shutoff that shuts off external interference waves Means,
A transmitting antenna installed in the electromagnetic shutoff means for transmitting a modulated carrier wave output from the signal generator, and an operation detection signal installed in the electromagnetic shutoff means for detecting a receiving operation of a test object and generating an operation detection signal; A radio selective call receiver sensitivity test apparatus, comprising: a plurality of operation detecting means for outputting to a main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023498A JP2743547B2 (en) | 1990-01-31 | 1990-01-31 | Radio selective call receiver sensitivity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023498A JP2743547B2 (en) | 1990-01-31 | 1990-01-31 | Radio selective call receiver sensitivity tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03227151A JPH03227151A (en) | 1991-10-08 |
| JP2743547B2 true JP2743547B2 (en) | 1998-04-22 |
Family
ID=12112151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023498A Expired - Lifetime JP2743547B2 (en) | 1990-01-31 | 1990-01-31 | Radio selective call receiver sensitivity tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2743547B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847903A (en) * | 2018-06-19 | 2018-11-20 | Oppo广东移动通信有限公司 | Electronic equipment receiving sensitivity test macro, method and apparatus |
-
1990
- 1990-01-31 JP JP2023498A patent/JP2743547B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03227151A (en) | 1991-10-08 |
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