JPH0225855U - - Google Patents
Info
- Publication number
- JPH0225855U JPH0225855U JP10467988U JP10467988U JPH0225855U JP H0225855 U JPH0225855 U JP H0225855U JP 10467988 U JP10467988 U JP 10467988U JP 10467988 U JP10467988 U JP 10467988U JP H0225855 U JPH0225855 U JP H0225855U
- Authority
- JP
- Japan
- Prior art keywords
- soil
- sensor
- growing plants
- moisture
- comparison means
- 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
- 239000002689 soil Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 2
- 230000007812 deficiency Effects 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 239000012212 insulator Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図は本考案の第１の実施例を示す部分断面
図、第２図は同回路図、第３図は本考案の第２の
実施例を示す部分回路図、第４図は本考案の第３
の実施例を示す部分回路図である。
１…検出装置本体、２，２ａ…電極、３…比較
手段、４…ブザー、５…電池、６…切替スイツチ
、７…土壌、８…植物、１１，１２…抵抗、１３
…ＯＰアンプ、１４，１５，１６，１７，１８…
抵抗、１９…コンパレータ、２０…抵抗、２１…
トランジスタ、３０…メロデイー発生器、３１…
抵抗、３２…入力インターフエース、３３…中央
処理装置、３４…出力インターフエース、３５…
メモリー、３６…ＤＡコンバータ、３７…増幅器
、３８…スピーカー、４０…リレーコイル、４０
ａ…リレー接点、４１…モータ、４２…ポンプ、
４３…商用電源。
Fig. 1 is a partial sectional view showing a first embodiment of the present invention, Fig. 2 is a circuit diagram thereof, Fig. 3 is a partial circuit diagram showing a second embodiment of the invention, and Fig. 4 is a partial sectional view of the invention. the third
FIG. 2 is a partial circuit diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Detection device body, 2, 2a... Electrode, 3... Comparison means, 4... Buzzer, 5... Battery, 6... Changeover switch, 7... Soil, 8... Plant, 11, 12... Resistor, 13
...OP amplifier, 14, 15, 16, 17, 18...
Resistor, 19... Comparator, 20... Resistor, 21...
Transistor, 30...Melody generator, 31...
Resistor, 32... Input interface, 33... Central processing unit, 34... Output interface, 35...
Memory, 36...DA converter, 37...Amplifier, 38...Speaker, 40...Relay coil, 40
a...Relay contact, 41...Motor, 42...Pump,
43...Commercial power supply.
Claims (1)
分含有量を検知するセンサーと、該センサーより
送られるアナログ信号値を任意に設定された閾値
と比較し前記アナログ信号値の前記閾値に対する
大小関係により２種類の異なる出力を発生する比
較手段と、前記比較手段の出力により土壌水分不
足時に作動する警報器または給水装置とから成る
草木生育用土壌の水分不足検出装置。 ２ 前記センサーは絶縁体に支持された１対の電
極を有し、センサー周囲の土壌を介して前記電極
間に流れる電流の強さにより土壌の水分含有量が
検知され、前記警報器がメロデイー発生装置であ
る請求項１項記載の草木生育用土壌の水分不足検
出装置。[Claims for Utility Model Registration] 1. A sensor that is buried in the soil near plants and detects the moisture content of the soil, and a sensor that compares the analog signal value sent from the sensor with an arbitrarily set threshold value to detect the analog signal. A water shortage detection device for soil for growing plants, comprising a comparison means that generates two different outputs depending on the magnitude relationship of the signal value with respect to the threshold value, and an alarm or water supply device that operates when the soil moisture is insufficient depending on the output of the comparison means. . 2. The sensor has a pair of electrodes supported by an insulator, and the moisture content of the soil is detected by the strength of the current flowing between the electrodes through the soil around the sensor, and the alarm generates a melody. The apparatus for detecting moisture deficiency in soil for growing plants according to claim 1, which is a device for detecting moisture deficiency in soil for growing plants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10467988U JPH0225855U (en) | 1988-08-08 | 1988-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10467988U JPH0225855U (en) | 1988-08-08 | 1988-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0225855U true JPH0225855U (en) | 1990-02-20 |
Family
ID=31336614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10467988U Pending JPH0225855U (en) | 1988-08-08 | 1988-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0225855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020101405A (en) * | 2018-12-20 | 2020-07-02 | 国立大学法人 東京大学 | Auxiliary device for inserting sensor member |
-
1988
- 1988-08-08 JP JP10467988U patent/JPH0225855U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020101405A (en) * | 2018-12-20 | 2020-07-02 | 国立大学法人 東京大学 | Auxiliary device for inserting sensor member |