JPH0235013U - - Google Patents
Info
- Publication number
- JPH0235013U JPH0235013U JP11430488U JP11430488U JPH0235013U JP H0235013 U JPH0235013 U JP H0235013U JP 11430488 U JP11430488 U JP 11430488U JP 11430488 U JP11430488 U JP 11430488U JP H0235013 U JPH0235013 U JP H0235013U
- Authority
- JP
- Japan
- Prior art keywords
- vehicle speed
- detecting
- reflected wave
- frequency
- receiving
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Description
第１図は本考案に係る超音波検知装置の概略構
成を示すブロツク構成図、第２図は同上装置の受
信器による受信信号の周波数成分を概略的に示す
グラフ、第３図は第１図に示す超音波検知装置に
よる信号処理過程を説明するための説明図である
。
１……超音波検知センサ、２……超音波発信器
、３……超音波受信器、４……超音波発信装置、
５……超音波受信装置、６……検波装置、７……
制御装置、８……車速センサ、９……検出物。
FIG. 1 is a block diagram showing a schematic configuration of an ultrasonic detection device according to the present invention, FIG. 2 is a graph schematically showing the frequency components of a signal received by the receiver of the same device, and FIG. 3 is a diagram similar to the one shown in FIG. FIG. 3 is an explanatory diagram for explaining a signal processing process by the ultrasonic detection device shown in FIG. 1... Ultrasonic detection sensor, 2... Ultrasonic transmitter, 3... Ultrasonic receiver, 4... Ultrasonic transmitter,
5... Ultrasonic receiving device, 6... Detection device, 7...
Control device, 8...Vehicle speed sensor, 9...Detected object.
Claims (1)
音波を送出する発信手段と、路面若しくは障害物
からの反射波を受信する受信手段と、車両の車速
を検出する車速検出手段と、この車速検出手段に
よつて検出された車速からドツプラー効果を利用
して上記反射波の周波数を演算する反射波周波数
演算手段と、上記受信手段による受信信号から上
記演算された反射波周波数の信号を検出する手段
とを備えた車両用超音波検知装置。 A transmitting means for transmitting ultrasonic waves of a constant frequency toward the road surface in the direction of travel of the vehicle, a receiving means for receiving reflected waves from the road surface or an obstacle, a vehicle speed detecting means for detecting the vehicle speed, and this vehicle speed detection means. reflected wave frequency calculating means for calculating the frequency of the reflected wave using the Doppler effect from the vehicle speed detected by the means; and means for detecting a signal of the calculated reflected wave frequency from the signal received by the receiving means. An ultrasonic detection device for vehicles equipped with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11430488U JPH0648451Y2 (en) | 1988-08-31 | 1988-08-31 | Ultrasonic detector for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11430488U JPH0648451Y2 (en) | 1988-08-31 | 1988-08-31 | Ultrasonic detector for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0235013U true JPH0235013U (en) | 1990-03-06 |
| JPH0648451Y2 JPH0648451Y2 (en) | 1994-12-12 |
Family
ID=31354926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11430488U Expired - Lifetime JPH0648451Y2 (en) | 1988-08-31 | 1988-08-31 | Ultrasonic detector for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648451Y2 (en) |
-
1988
- 1988-08-31 JP JP11430488U patent/JPH0648451Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0648451Y2 (en) | 1994-12-12 |
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