JP2005055238A - Device for measuring water quality - Google Patents

Device for measuring water quality Download PDF

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JP2005055238A
JP2005055238A JP2003284657A JP2003284657A JP2005055238A JP 2005055238 A JP2005055238 A JP 2005055238A JP 2003284657 A JP2003284657 A JP 2003284657A JP 2003284657 A JP2003284657 A JP 2003284657A JP 2005055238 A JP2005055238 A JP 2005055238A
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water quality
water
measuring device
quality measuring
float
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JP4415370B2 (en
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Hiroko Yokohira
裕子 横平
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Yokogawa Electric Corp
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Yokogawa Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To realize a device for measuring water quality capable of measuring the water quality with a certain elevation. <P>SOLUTION: The device for measuring the water quality is provided with a wire which is disposed underwater and has a float at one end and a plummet at the other end, a plurality of intakes which are attached to the wire at prescribed distances from the bottom, and a water quality measuring gauge, which sequentially changes the plurality of intakes by using a changing means, takes out samples by using a sampling means and measures the water quality. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、一定のエレベーションの水質を測定できる水質測定装置に関するものである。   The present invention relates to a water quality measuring device capable of measuring the water quality of a certain elevation.

水質測定装置に関連する先行技術文献としては次のようなものがある。
特開平６−１８５１８ Prior art documents related to the water quality measuring apparatus include the following.
JP-A-6-18518

図２はこのような従来の水質測定装置の一例を示す要部構成説明図である。
図２において、中央部に貫通孔が設けられたフロ−ト１と、このフロ−ト上に設置されワイヤを巻上げ／繰出しするワイヤウインチ装置２と、ワイヤの先端に連結され各種水質計及び水質デ−タを記憶するメモリが搭載された水中センサ部３と、フロ−ト１に設けられたシ−ケンス回路４とが設けられている。 FIG. 2 is an explanatory view of the main part configuration showing an example of such a conventional water quality measuring apparatus.
In FIG. 2, a float 1 having a through hole at the center, a wire winch device 2 installed on the float for winding / feeding a wire, and various water quality meters and water quality connected to the tip of the wire. An underwater sensor unit 3 in which a memory for storing data is mounted, and a sequence circuit 4 provided in the float 1 are provided.

以上の構成において、このシ−ケンス回路４は測定時刻になると、自動的にワイヤウインチ装置２を作動させて水中センサ部３を水中設定深度まで往復移動させ、水中センサ部３は所定深度毎の水質デ−タを各種水質計で測定し記憶する。   In the above configuration, when the sequence circuit 4 reaches the measurement time, the wire winch device 2 is automatically operated to reciprocate the underwater sensor unit 3 to the underwater set depth. Water quality data is measured with various water quality meters and stored.

しかしながら、このような装置においては、所定深度毎の水質デ−タを各種水質計で測定しているが、水深何メータという測定方法では、水位変動によりエレベーション換算が必要になる。
電動ウィンチを用いた測定方法では、大電力の電源の確保が必要不可欠なため、大電力の電源の取れない場所での測定ができない。 However, in such an apparatus, water quality data at a predetermined depth is measured by various water quality meters. However, in a measurement method of how many water depths, elevation conversion is required due to fluctuations in the water level.
In the measurement method using an electric winch, it is indispensable to secure a high-power power supply, and therefore measurement cannot be performed in a place where the high-power power supply cannot be obtained.

本発明の目的は、上記の課題を解決するもので、水位の変動に関わらず一定のエレベーションの水質を測定でき、電源のない場所でも自動で測定が可能であり、敷設、移動も容易である。水質測定装置を提供することを目的とする。   The object of the present invention is to solve the above-mentioned problems, and can measure the water quality of a certain elevation regardless of fluctuations in the water level, can be automatically measured even in a place without a power source, and is easy to lay and move. is there. It aims at providing a water quality measuring device.

このような課題を達成するために、本発明では、請求項１の水質測定装置においては、
水中に設けられ一端に錘りが設けられ他端に浮きが設けられたワイヤと、水底から所定距離のワイヤの箇所にそれぞれ取り付けられた複数の取入口と、この複数の取入口を順次切替手段により切り替えて試料を取出手段により取出して水質を測定する水質計とを具備したことを特徴とする。 In order to achieve such a problem, in the present invention, in the water quality measuring device according to claim 1,
A wire provided in water and having a weight at one end and a float at the other end, a plurality of intakes respectively attached to the wire at a predetermined distance from the water bottom, and a means for sequentially switching the plurality of intakes And a water quality meter for measuring the water quality by taking out the sample by the taking-out means.

本発明の請求項２においては、請求項１記載の水質測定装置において、
前記取入口と前記取出手段とを連結する導水管が使用されたことを特徴とする。 In claim 2 of the present invention, in the water quality measuring device according to claim 1,
A water conduit that connects the inlet and the extraction means is used.

本発明の請求項３においては、請求項１又は請求項２記載の水質測定装置において、
前記切替手段は、導水管の途中に設けられた切替弁が使用されたことを特徴とする。 In claim 3 of the present invention, in the water quality measuring device according to claim 1 or 2,
The switching means is characterized in that a switching valve provided in the middle of the water conduit is used.

本発明の請求項４においては、請求項１乃至請求項３の何れかに記載の水質測定装置において、
前記取出手段は、電動ポンプが使用されたことを特徴とする。 According to claim 4 of the present invention, in the water quality measuring device according to any one of claims 1 to 3,
The take-out means is an electric pump.

本発明の請求項５においては、請求項１乃至請求項４の何れかに記載の水質測定装置において、
前記切替手段，前記取出手段と前記水質計とは、フロート上に設けられたことを特徴とする。 According to claim 5 of the present invention, in the water quality measuring device according to any one of claims 1 to 4,
The switching means, the take-out means and the water quality meter are provided on a float.

本発明の請求項６においては、請求項５記載の水質測定装置において、
前記切替手段，前記取出手段と前記水質計の電源は、ソーラパネルあるいはバッテリーが使用されたことを特徴とする。 In claim 6 of the present invention, in the water quality measuring device according to claim 5,
A solar panel or a battery is used as the power source for the switching means, the take-out means and the water quality meter.

本発明の請求項７においては、請求項１乃至請求項６の何れかに記載の水質測定装置において、
前記水質計の測定結果信号は、無線により送信されることを特徴とする。 In claim 7 of the present invention, in the water quality measuring device according to any one of claims 1 to 6,
The measurement result signal of the water quality meter is transmitted wirelessly.

本発明の請求項８においては、請求項１乃至請求項７の何れかに記載の水質測定装置において、
前記フロートは水位変動係留手段を具備したことを特徴とする。 In claim 8 of the present invention, in the water quality measuring device according to any one of claims 1 to 7,
The float includes water level fluctuation mooring means.

本発明の請求項９においては、請求項８記載の水質測定装置において、
前記水位変動係留手段は、前記フロートにれ設けられた滑車と、この滑車に途中が係止され一端に錨が設けられ他端に錘が設けられたワイヤとを具備したことを特徴とする。 In claim 9 of the present invention, in the water quality measuring device according to claim 8,
The water level fluctuation mooring means includes a pulley provided in the float, and a wire that is halfway locked to the pulley, provided with a hook at one end, and provided with a weight at the other end.

本発明の請求項１０においては、請求項８記載の水質測定装置において、
前記水位変動係留手段は、前記フロートの両端側にそれぞれ設けられた２個の滑車と、この２個の滑車に途中が係止され両端に錨が設けられたワイヤと、前記２個の滑車間のワイヤに設けられた錘とを具備したことを特徴とする。 According to claim 10 of the present invention, in the water quality measuring device according to claim 8,
The water level fluctuation mooring means includes two pulleys respectively provided at both ends of the float, a wire that is halfway locked to the two pulleys and provided with hooks at both ends, and between the two pulleys. And a weight provided on the wire.

本発明の請求項１によれば、次のような効果がある。
水位変動によるエレベーション換算が不要になり、水位の変動に関わらず一定のエレベーションの水質を測定でき、水位変動のある水域での測定に好適な水質測定装置が得られる。 According to claim 1 of the present invention, there are the following effects.
Elevation conversion due to fluctuations in the water level is not required, the water quality of a certain elevation can be measured regardless of fluctuations in the water level, and a water quality measuring device suitable for measurement in a water area with fluctuations in the water level can be obtained.

切替手段が設けられたので、取出手段は１個で良く、少ない動力での測定が可能な水質測定装置が得られる。   Since the switching means is provided, only one take-out means is required, and a water quality measuring device capable of measuring with less power is obtained.

本発明の請求項２によれば、次のような効果がある。
取入口と取出手段とを連結する導水管が使用されたので、所定位置の試料を確実に取出すことができる水質測定装置が得られる。 According to claim 2 of the present invention, there are the following effects.
Since the water conduit that connects the intake port and the extraction means is used, a water quality measurement device that can reliably extract a sample at a predetermined position is obtained.

本発明の請求項３によれば、次のような効果がある。
切替手段は、導水管の途中に設けられた切替弁が使用されたので、切替弁は市場性が有り、容易に入手できるので、安価な水質測定装置が得られる。 According to claim 3 of the present invention, there are the following effects.
Since the switching valve provided in the middle of the water conduit is used as the switching means, the switching valve has marketability and can be easily obtained, so that an inexpensive water quality measuring device can be obtained.

本発明の請求項４によれば、次のような効果がある。
取出手段は、電動ポンプが使用されたので、操作が容易であり容易に試料が取出せる水質測定装置が得られる。 According to claim 4 of the present invention, there are the following effects.
Since an electric pump is used as the take-out means, a water quality measuring device that is easy to operate and can easily take out a sample is obtained.

本発明の請求項５によれば、次のような効果がある。
切替手段，取出手段と水質計とは、フロート上に設けられたので、装置の移動が容易な水質測定装置が得られる。 According to claim 5 of the present invention, there are the following effects.
Since the switching means, the taking-out means and the water quality meter are provided on the float, a water quality measuring device in which the device can be easily moved is obtained.

本発明の請求項６によれば、次のような効果がある。
切替手段，取出手段と水質計の電源は、ソーラパネルあるいはバッテリーが使用されたので、電動ウィンチのような大電力の電源を必要とせず、大容量の電源が無い場所でも容易に測定できる水質測定装置が得られる。 According to claim 6 of the present invention, there are the following effects.
Since the solar panel or battery is used as the power source for the switching means, take-out means and water quality meter, water quality measurement that does not require a large power source such as an electric winch and can be easily measured even in places without a large capacity power source A device is obtained.

本発明の請求項７によれば、次のような効果がある。
水質計の測定結果信号は、無線により送信されるので、有線設備のない辺地でも容易に使用できる水質測定装置が得られる。 According to claim 7 of the present invention, there are the following effects.
Since the measurement result signal of the water quality meter is transmitted wirelessly, a water quality measurement device that can be easily used even in a remote area without wired facilities is obtained.

本発明の請求項８，請求項９，請求項１０によれば、次のような効果がある。
水位変動係留手段は、フロートに設けられた滑車と、ワイヤと、錘とを有するので、フロートが水位変動に容易に対処できる水質測定装置が得られる。 According to claims 8, 9, and 10 of the present invention, the following effects are obtained.
Since the water level fluctuation mooring means includes a pulley provided on the float, a wire, and a weight, a water quality measuring device can be obtained in which the float can easily cope with the water level fluctuation.

以下本発明を図面を用いて詳細に説明する。
図１は本発明の一実施例の要部構成説明図である。
図において、図２と同一記号の構成は同一機能を表す。
以下、図２と相違部分のみ説明する。 Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is an explanatory view of the main part configuration of an embodiment of the present invention.
In the figure, the same symbol structure as in FIG. 2 represents the same function.
Only the differences from FIG. 2 will be described below.

ワイヤ１１は、水中に設けられ、一端に錘り１１１が設けられ他端に浮き１１２が設けられている。
複数の取入口１２は、水底Ａから所定距離Ｌ１，Ｌ２，Ｌ３のワイヤ１１の箇所にそれぞれ取り付けられている。 The wire 11 is provided in water, a weight 111 is provided at one end, and a float 112 is provided at the other end.
The plurality of intakes 12 are respectively attached to locations of the wires 11 at predetermined distances L1, L2, and L3 from the water bottom A.

水質計１３は、複数の取入口１２を順次、切替手段１４により切り替えて、試料を取出手段１５により取出して水質を測定する。
測定槽１６は、水質計１３により試料を測定するための水槽である。
導水管１７は、取入口１２と取出手段１５とを連結する。
この場合は、切替手段１４は、導水管１７の途中に設けられた切替弁が使用されている。 The water quality meter 13 sequentially switches the plurality of inlets 12 by the switching means 14 and takes out the sample by the taking-out means 15 to measure the water quality.
The measurement tank 16 is a water tank for measuring a sample by the water quality meter 13.
The water conduit 17 connects the inlet 12 and the extraction means 15.
In this case, the switching means 14 uses a switching valve provided in the middle of the water conduit 17.

また、取出手段１５は、電動ポンプが使用されている。
切替手段１４，取出手段１５と水質計１３とは、フロート１８上に設けられている。
切替手段１４，取出手段１５と水質計１３の電源は、ソーラパネルあるいはバッテリー１９が使用されている。 The take-out means 15 is an electric pump.
The switching means 14, the taking-out means 15 and the water quality meter 13 are provided on the float 18.
A solar panel or a battery 19 is used as the power source for the switching means 14, the taking-out means 15 and the water quality meter 13.

この場合は、フロート１８の一表面全体にソーラパネルが配置されている。
水質計１３の測定結果信号は、無線装置あるいは携帯電話２１により送信される。 In this case, a solar panel is disposed on the entire surface of the float 18.
The measurement result signal of the water quality meter 13 is transmitted by the wireless device or the mobile phone 21.

フロート１８は水位変動係留手段２０を有する。
水位変動係留手段３０は、フロート１８の両端側にそれぞれ設けられた２個の滑車３１と、この２個の滑車３１に途中が係止され両端に錨３２が設けられたワイヤ３３と、２個の滑車３１間のワイヤ３３に設けられた錘３４とを有する。 The float 18 has a water level fluctuation mooring means 20.
The water level fluctuation mooring means 30 includes two pulleys 31 provided at both ends of the float 18, two wires 33 each provided with hooks 32 at both ends and engaged with the two pulleys 31. And a weight 34 provided on the wire 33 between the pulleys 31.

以上の構成において、水質計１３により、複数の取入口１２を順次、切替手段１４により切り替えて、試料を取出手段１５により取出して水質を測定する。   In the above configuration, the water quality meter 13 sequentially switches the plurality of inlets 12 by the switching means 14 and takes out the sample by the taking-out means 15 to measure the water quality.

この結果、
水位変動によるエレベーション換算が不要になり、水位の変動に関わらず一定のエレベーションの水質を測定でき、水位変動のある水域での測定に好適な水質測定装置が得られる。 As a result,
Elevation conversion due to fluctuations in the water level is not required, the water quality of a certain elevation can be measured regardless of fluctuations in the water level, and a water quality measuring device suitable for measurement in a water area with fluctuations in the water level can be obtained.

切替手段１４が設けられたので、取出手段１５は１個で良く、少ない動力での測定が可能な水質測定装置が得られる。   Since the switching means 14 is provided, only one take-out means 15 is required, and a water quality measuring device capable of measuring with less power is obtained.

取入口１２と取出手段１５とを連結する導水管１７が使用されたので、所定位置の試料を確実に取出すことができる水質測定装置が得られる。   Since the water conduit 17 that connects the inlet 12 and the extraction means 15 is used, a water quality measuring device that can reliably extract a sample at a predetermined position is obtained.

切替手段１４は、導水管１７の途中に設けられた切替弁１４が使用されたので、切替弁は市場性が有り、容易に入手できるので、安価な水質測定装置が得られる。   Since the switching valve 14 provided in the middle of the water conduit 17 is used for the switching means 14, since the switching valve has marketability and can be obtained easily, an inexpensive water quality measuring device can be obtained.

取出手段１５は、電動ポンプ１５が使用されたので、操作が容易であり容易に試料が取出せる水質測定装置が得られる。   Since the electric pump 15 is used as the extracting means 15, a water quality measuring device that is easy to operate and can easily extract a sample is obtained.

切替手段１４，取出手段１５と水質計１３とは、フロート１８上に設けられたので、装置の移動が容易な水質測定装置が得られる。   Since the switching means 14, the taking-out means 15 and the water quality meter 13 are provided on the float 18, a water quality measuring device in which the device can be easily moved is obtained.

切替手段１４，取出手段１５と水質計１３の電源は、ソーラパネル１９あるいはバッテリーが使用されたので、電動ウィンチのような大電力の電源を必要とせず、大容量の電源が無い場所でも容易に測定できる水質測定装置が得られる。   Since the solar panel 19 or the battery is used as the power source for the switching means 14, the take-out means 15 and the water quality meter 13, a high-power power source such as an electric winch is not required, and it is easy even in a place without a large-capacity power source. A water quality measuring device that can be measured is obtained.

水質計１３の測定結果信号は、無線により送信されるので、有線設備のない辺地でも容易に使用できる水質測定装置が得られる。   Since the measurement result signal of the water quality meter 13 is transmitted wirelessly, a water quality measuring device that can be easily used even in a remote area without wired facilities is obtained.

水位変動係留手段３０は、フロート１８の両端側にそれぞれ設けられた２個の滑車３１と、この２個の滑車３１に途中が係止され両端に錨３２が設けられたワイヤ３３と、２個の滑車３１間のワイヤ３３に設けられた錘３４とを有するので、フロート１８が水位変動に容易に対処できる水質測定装置が得られる。   The water level fluctuation mooring means 30 includes two pulleys 31 provided at both ends of the float 18, two wires 33 each provided with hooks 32 at both ends and engaged with the two pulleys 31. Since the weight 34 provided on the wire 33 between the pulleys 31 is provided, a water quality measuring device in which the float 18 can easily cope with fluctuations in the water level is obtained.

なお、前述の実施例においては、滑車３１と錨３２とが２個の例に付いて、説明したが、これに限ることはなく、滑車３１と錨３２はそれぞれ１個であっても良い。
要するに、フロート１８が水位変動に容易に対処できるものであれば良い。 In the above-described embodiment, two pulleys 31 and 32 are described as examples. However, the present invention is not limited to this, and one pulley 31 and one hook 32 may be provided.
In short, it is sufficient that the float 18 can easily cope with the fluctuation of the water level.

本発明の一実施例の要部構成説明図である。It is principal part structure explanatory drawing of one Example of this invention. 従来の水質測定装置の一例を示す要部構成説明図である。It is principal part structure explanatory drawing which shows an example of the conventional water quality measuring apparatus.

符号の説明Explanation of symbols

１１ ワイヤ
１１１ 錘り
１１２ 浮き
１２ 取入口
１３ 水質計
１４ 切替手段
１５ 取出手段
１６ 測定槽
１７ 導水管
１８ フロート
１９ ソーラパネル
２１ 無線装置あるいは携帯電話
３０ 水位変動係留手段
３１ 滑車
３２ 錨
３３ ワイヤ
３４ 錘
Ａ 水底

DESCRIPTION OF SYMBOLS 11 Wire 111 Weight 112 Floating 12 Intake 13 Water quality meter 14 Switching means 15 Taking out means 16 Measurement tank 17 Water conduit 18 Float 19 Solar panel 21 Radio | wireless apparatus or mobile telephone 30 Water level fluctuation mooring means 31 Pulley 32 ３３ 33 Wire 34 Weight A Bottom of water

Claims (10)

水中に設けられ一端に錘りが設けられ他端に浮きが設けられたワイヤと、
水底から所定距離のワイヤの箇所にそれぞれ取り付けられた複数の取入口と、
この複数の取入口を順次切替手段により切り替えて試料を取出手段により取出して水質を測定する水質計と
を具備したことを特徴とする水質測定装置。 A wire provided in water and provided with a weight at one end and a float at the other end;
A plurality of intakes each attached to a wire at a predetermined distance from the bottom of the water;
A water quality measuring apparatus comprising: a water quality meter that measures the water quality by sequentially switching the plurality of intake ports by the switching means and taking out the sample by the take-out means. 前記取入口と前記取出手段とを連結する導水管が使用されたこと
を特徴とする請求項１記載の水質測定装置。 The water quality measuring device according to claim 1, wherein a water conduit that connects the inlet and the outlet is used. 前記切替手段は、導水管の途中に設けられた切替弁が使用されたこと
を特徴とする請求項１又は請求項２記載の水質測定装置。 The water quality measuring device according to claim 1 or 2, wherein a switching valve provided in the middle of the water conduit is used as the switching means. 前記取出手段は、電動ポンプが使用されたこと
を特徴とする請求項１乃至請求項３の何れかに記載の水質測定装置。 The water quality measuring device according to claim 1, wherein an electric pump is used as the extraction means. 前記切替手段，前記取出手段と前記水質計とは、フロート上に設けられたこと
を特徴とする請求項１乃至請求項４の何れかに記載の水質測定装置。 The water quality measuring device according to any one of claims 1 to 4, wherein the switching means, the take-out means, and the water quality meter are provided on a float. 前記切替手段，前記取出手段と前記水質計の電源は、ソーラパネルあるいはバッテリーが使用されたこと
を特徴とする請求項５記載の水質測定装置。 The water quality measuring apparatus according to claim 5, wherein a solar panel or a battery is used as a power source for the switching means, the take-out means and the water quality meter. 前記水質計の測定結果信号は、無線により送信されること
を特徴とする請求項１乃至請求項６の何れかに記載の水質測定装置。 The water quality measurement device according to any one of claims 1 to 6, wherein the measurement result signal of the water quality meter is transmitted wirelessly. 前記フロートは水位変動係留手段
を具備したことを特徴とする請求項１乃至請求項７の何れかに記載の水質測定装置。 The water quality measuring device according to any one of claims 1 to 7, wherein the float includes water level fluctuation mooring means. 前記水位変動係留手段は、前記フロートにれ設けられた滑車と、
この滑車に途中が係止され一端に錨が設けられ他端に錘が設けられたワイヤと
を具備したことを特徴とする請求項８記載の水質測定装置。 The water level fluctuation mooring means includes a pulley provided in the float,
The water quality measuring device according to claim 8, further comprising: a wire halfway locked to the pulley, a hook provided at one end, and a weight provided at the other end. 前記水位変動係留手段は、前記フロートの両端側にそれぞれ設けられた２個の滑車と、
この２個の滑車に途中が係止され両端に錨が設けられたワイヤと、
前記２個の滑車間のワイヤに設けられた錘と
を具備したことを特徴とする請求項８記載の水質測定装置。


The water level fluctuation mooring means includes two pulleys provided on both ends of the float,
A wire that is locked halfway to these two pulleys and has hooks at both ends;
The water quality measuring apparatus according to claim 8, further comprising: a weight provided on a wire between the two pulleys.


JP2003284657A 2003-08-01 2003-08-01 Water quality measuring device Expired - Fee Related JP4415370B2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007225364A (en) * 2006-02-22 2007-09-06 Shimane Pref Gov Water quality measuring instrument
CN109444362A (en) * 2018-11-07 2019-03-08 环境保护部华南环境科学研究所 A kind of patrol robot for water pollution monitoring
CN111537288A (en) * 2020-06-28 2020-08-14 王欣悦 Deep water body batch sampling equipment for water quality monitoring
CN113295471A (en) * 2021-05-23 2021-08-24 郑佳佳 Sewage detection sampling device with tracking function and implementation method
CN115932202A (en) * 2022-12-22 2023-04-07 武冈市政易云科技服务有限公司 Environmental monitoring equipment based on thing networking

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007225364A (en) * 2006-02-22 2007-09-06 Shimane Pref Gov Water quality measuring instrument
JP4677648B2 (en) * 2006-02-22 2011-04-27 島根県 Water quality measuring device
CN109444362A (en) * 2018-11-07 2019-03-08 环境保护部华南环境科学研究所 A kind of patrol robot for water pollution monitoring
CN111537288A (en) * 2020-06-28 2020-08-14 王欣悦 Deep water body batch sampling equipment for water quality monitoring
CN111537288B (en) * 2020-06-28 2022-12-16 中流工程设计咨询有限公司 Deep water body batch sampling equipment for water quality monitoring
CN113295471A (en) * 2021-05-23 2021-08-24 郑佳佳 Sewage detection sampling device with tracking function and implementation method
CN115932202A (en) * 2022-12-22 2023-04-07 武冈市政易云科技服务有限公司 Environmental monitoring equipment based on thing networking
CN115932202B (en) * 2022-12-22 2024-02-23 武冈市政易云科技服务有限公司 Environment monitoring equipment based on Internet of things

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