JPS6257178U - - Google Patents
Info
- Publication number
- JPS6257178U JPS6257178U JP14858985U JP14858985U JPS6257178U JP S6257178 U JPS6257178 U JP S6257178U JP 14858985 U JP14858985 U JP 14858985U JP 14858985 U JP14858985 U JP 14858985U JP S6257178 U JPS6257178 U JP S6257178U
- Authority
- JP
- Japan
- Prior art keywords
- receivers
- counter
- time difference
- received signals
- difference
- 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
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Description
第１図はこの考案の超音波測距装置の一実施例
のブロツク図、第２図は同上超音波測距装置の動
作を説明するためのタイミングチヤート、第３図
は従来の超音波測距装置のブロツク図である。
１……送信トリガパルス発生器、２，１９……
クロツクパルス発生器、３……送信器、５……ゲ
ート信号発生回路、６，１６……ＡＮＤ回路、７
，１７……カウンタ、８……ラツチ回路、９……
Ｄ／Ａコンバータ、１０……指示計、１１，２１
……受信器、１３，１４……検波器、１４，２４
……フリツプ・フロツプ回路、１５……排他的論
理和回路、１８……比較器、１００……対象物。
Fig. 1 is a block diagram of an embodiment of the ultrasonic distance measuring device of this invention, Fig. 2 is a timing chart for explaining the operation of the same ultrasonic distance measuring device, and Fig. 3 is a conventional ultrasonic ranging device. FIG. 2 is a block diagram of the device. 1... Transmission trigger pulse generator, 2, 19...
Clock pulse generator, 3... Transmitter, 5... Gate signal generation circuit, 6, 16... AND circuit, 7
, 17... Counter, 8... Latch circuit, 9...
D/A converter, 10... Indicator, 11, 21
... Receiver, 13, 14 ... Detector, 14, 24
...Flip-flop circuit, 15...Exclusive OR circuit, 18...Comparator, 100...Object.
Claims (1)
信する送信器と、上記対象物からの反射波を受信
するわずかに距離を変えた二つの受信器と、上記
超音波の送信と同時にクロツクパルスをカウント
して対象物の距離を計測する第１のカウンタと、
上記二つの受信器の受信信号の時間差をカウント
する第２のカウンタと、この第２のカウンタのカ
ウント値から上記二つの受信器の受信信号の時間
差が設定した二つの受信器の距離差に相当する時
間差のときのみあるいは許容時間範囲内にあると
きのみその受信信号が対象物からの反射波である
と判断する判断手段と、この判断手段の判断結果
を指示する指示手段とを具備する超音波測距装置
。 A transmitter is driven by a transmission trigger to transmit ultrasonic waves to the target object, two receivers are placed at slightly different distances to receive reflected waves from the target object, and clock pulses are counted at the same time as the ultrasonic waves are transmitted. a first counter that measures the distance to the object;
A second counter that counts the time difference between the received signals of the two receivers, and from the count value of this second counter, the time difference between the received signals of the two receivers corresponds to the set distance difference between the two receivers. an ultrasonic wave device comprising a determining means for determining that a received signal is a reflected wave from an object only when the time difference is within a permissible time range or within a permissible time range; and an indicating means for instructing the determination result of the determining means. Ranging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14858985U JPS6257178U (en) | 1985-09-28 | 1985-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14858985U JPS6257178U (en) | 1985-09-28 | 1985-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6257178U true JPS6257178U (en) | 1987-04-09 |
Family
ID=31063004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14858985U Pending JPS6257178U (en) | 1985-09-28 | 1985-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6257178U (en) |
-
1985
- 1985-09-28 JP JP14858985U patent/JPS6257178U/ja active Pending
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