JPS55131884A - Counter for man, body and the like - Google Patents
Counter for man, body and the likeInfo
- Publication number
- JPS55131884A JPS55131884A JP3876879A JP3876879A JPS55131884A JP S55131884 A JPS55131884 A JP S55131884A JP 3876879 A JP3876879 A JP 3876879A JP 3876879 A JP3876879 A JP 3876879A JP S55131884 A JPS55131884 A JP S55131884A
- Authority
- JP
- Japan
- Prior art keywords
- discriminator
- man
- pyroelectric element
- counter
- inputted
- 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
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
PURPOSE: To make it possible to detect a man, etc., passing by discriminating and counting the output signal of a pyroelectric element which generates voltages differing in polarity.
CONSTITUTION: When a man moves downward on the surface of paper, the positive output of pyroelectric element 22 is generated at time t1 and amplified 51 before being inputted to discriminator 53. At time t2, the negative output of pyroelectric element 32 is generated next and amplified 52 before being inputted to discriminator 53. Receiving the positive input signal and then negative input signal, discriminator 53 outputs "+1" to counter 54. When the humand moves in the opposite direction, "-1" is counted. Thus, passing bodies such as men can be detected with accuracy.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3876879A JPS55131884A (en) | 1979-03-30 | 1979-03-30 | Counter for man, body and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3876879A JPS55131884A (en) | 1979-03-30 | 1979-03-30 | Counter for man, body and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55131884A true JPS55131884A (en) | 1980-10-14 |
Family
ID=12534464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3876879A Pending JPS55131884A (en) | 1979-03-30 | 1979-03-30 | Counter for man, body and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55131884A (en) |
-
1979
- 1979-03-30 JP JP3876879A patent/JPS55131884A/en active Pending
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