JP3452559B2 - Water quality monitoring and measuring device that automatically rises and falls along the water surface - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water quality monitoring and measuring apparatus that automatically moves up and down along a water surface, and in particular, by winding a signal cable around a reel, the length of the cable is adjusted and the other end of the cable is adjusted. The present invention relates to a device that keeps a float provided at a constant position and transmits data detected by a water quality sensor or the like installed in the float by an optical signal.

[0002]

2. Description of the Related Art Water pollution of rivers and dams is becoming more and more serious, and not only general pollution sources but also untreated waste enter the rivers for use by irrigation water and residents. Water may be polluted, and strict water treatment is required. In order to prevent pollution due to the above-mentioned pollution, it is important to keep track of the water quality, and nowadays people collect water every day and inspect it. Is the main method, and it is not widely used for measuring water quality using machines, and most of them collect water with a pump and send it to an indoor measurement system to measure water quality with an analysis tank. It is a thing.

[0003]

As described above, water quality measurement by a method in which a person collects water from a dam, lake, etc. every day has to be stopped when the weather is bad. As the water level changes, it is difficult to obtain a uniform and stable sample. There is also one that uses a float, but this is to prevent the float from flowing by connecting many cables to the shore, but in situations such as the cable getting caught in an object in water. It is easy to occur. Therefore, in view of these drawbacks, the water quality of the present invention that automatically moves up and down along the water surface of the present invention that does not install a complicated cable and can stably take a sample at a certain position and measure the value. Provide a monitoring and measuring device.

[0004]

Mainly composed of a reel and a signal relay section, a float and a circuit board, and several water quality measuring sections, and a float is connected downward to a signal cable wound around the reel. , The signal relay section is provided with a circuit board and a receiving circuit board, and the signal relay section is fixed on the outer wall of the reel,
Also, a replaceable battery provides electricity to the circuit board in the float, and the signal repeater uses optical signals to send several water quality measurements to the water quality monitoring and measurement station. The parts are respectively fixed to several water quality sensors outside the float so that the signal cable has a dual role of adjusting the position of the float and transmitting data.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 1 to 3, the present invention mainly comprises a reel 10, a signal relay section 20, a float 30, and a plurality of water quality measuring sections 35. One side of the reel 10 is installed on a center fixed shaft 11 by a bearing 12, a coil spring 13 is wound around the inner circumference of the reel 10, and the reel 10 has a function of returning to its original position by automatic rotation. A signal cable 15 is provided on the outer circumference of the reel 10.
Is wound, several signal lines are provided in the signal cable 15, and a float 30 that pulls downward is provided at the extreme end of the signal cable 15. That is, by automatically rotating the reel 10, the length of the cable is adjusted (cable extension), and the float moves up and down while maintaining balance on the water surface. In addition, in the signal cable 15, one end is bored with a ring wall 17,
It is connected to the signal terminal 22 of the circuit board 21.

The signal relay portion 20 includes a circuit board 21 and a signal circuit board 26. The circuit board 21 is integrally pivoted and fixed on the outer ring wall 17 of the reel 10 so as to rotate the same as the reel 10. Therefore, there is no influence on the rotation and the returning of the reel 10. Further, electronic components such as a battery 23 and an optical transmitter 24 are provided on the circuit board 21.
The fixed position of No. 4 is the axial center position of the reel, so that the purpose of transmitting the transmission operation without being influenced by the rotation of the reel 10 is achieved. Several signal lines in the signal cable 15 are connected to a signal terminal 22 on the circuit board, and the signal circuit board detects the signal and outputs the detected numerical value as an optical signal. To the optical receiver 28 on 26. The signal circuit board 26 is fixed on the side surface of the support 19, and the receiving circuit board 26 transmits the signal to the water quality monitoring and measuring station by displaying the measured water quality value on a monitor as shown in FIG.

The float 30 is installed on the float at the extreme end of the signal cable 15, and several signal lines in the signal cable 15 are hermetically sealed and connected to a circuit board 33 in the float 30. The battery 23 on the board 21 supplies power to the circuit board 33 in the float 30, and the circuit board 33 periodically operates and consumes electricity. For example, a signal is read once a minute. The battery is used for a long time such as several months, and the operation button 25 on the circuit board 21 is used if the power saving state is entered during the other time.
Is used for temporary activation, and thus the signal cable 15 has two functions of pulling up the float 30 and transmitting the measured signal.

The several water quality measuring parts 35 are fixed to several water quality sensors outside the float 30, respectively, and are connected to the circuit board 33 in the float 30 by several signal lines. PH value, water temperature, oxygen content, conductivity, turbidity and other water quality data are measured under a constant water depth, and the signal is transmitted to the measuring station via the signal cable 15 and the signal relay unit 20. Therefore, it is convenient for accurately measuring the water quality at a certain depth on the surface of a lake over a long period of time.

Further, as shown in FIG. 4, in the second embodiment, similarly, in order to float the float 30 up and down according to the height of the water level such as the surface of a lake, a measuring pulley 40 is added so that the float floats due to a change in the water level. The reel 10
1. A symmetrical measuring pulley 40 is installed in parallel on one side of the circuit board 21 of FIG.
Is wound around the signal cable 15 and the float 3
In the floating and pulling between 0, the measuring pulley 50 and the reel 10 are similarly rotated by the vertical floating action of the float 30, and the length of the circumference of rotation of the measuring pulley 40 is completely. The measurement pulley 40 is provided with several magnets 41 at equal intervals corresponding to the length of winding and unwinding of the signal cable 15, and the measurement is performed by the signal detector 45 on the magnet sensing side. Several magnets 41 on the pulley 40 move toward and away from each other by rotation to generate an alternating pulse signal, and the length of rotation of the measurement pulley 40 is the length of the tension of the signal cable 15 (or the float 30 floating). The change of the water level rise and fall which reacts with the water level is measured. Therefore, in addition to measuring the water quality condition under a predetermined fixed water depth, the present invention simultaneously measures the change in height due to the water level rise and fall of the lake surface etc. Station Provide important data to.

Further, in the third embodiment of the present invention, as shown in FIG. 5, the reel 10 is integrally pivoted and fixed to one end of a pivot 51, and the reel 10 is fixed to the other end of the pivot 51. It is pierced and fixed on the bearing 52 on the support 19, and is integrally pivoted and fixed in the drum 53 of the constant torque spring 50 as one body, and an even twisting force is applied to the reel 10. And has a function of automatically rotating and returning, that is, the constant torque spring 50 provides the elastic force for returning to replace the coil spring 13 of FIG. 4 to position the float 30 at a constant water level. I have to.

[0011]

According to the present invention, the reel, the signal relay portion,
The inter-floating interlocking measuring device measures the values with several water quality measuring devices at a certain depth below the water surface, while several water quality measuring parts outside the float float with the rise of the water level on the lake surface, etc., and Since the reel is provided so as to automatically rotate and return, the length of the signal cable is adjusted so that the signal cable achieves both the position adjustment of the float and the data transmission. . In addition, by several water quality measuring parts outside the float and at a fixed water depth, PH
Value, water temperature, oxygen content, conductivity, turbidity, etc. are measured, and the purpose of transmitting the measured water quality value and transmitting the signal to the other receiving end is achieved by the optical signal transmission method. Was done.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of the present invention.

FIG. 2 is a local enlarged explanatory view of the signal relay unit of FIG.

3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a structural explanatory view of the second embodiment of the present invention.

FIG. 5 is a structural explanatory view according to the third embodiment of the present invention.

[Explanation of symbols]

10 reel 11 Center fixed axis 12 bearings 13 coil spring 15 signal cable 17 Wheel Wall 19 frame 20 Signal relay section 21 circuit board 22 Signal terminal 23 Battery 24 optical transmitter 25 operation buttons 26 Receiver circuit board 28 Optical receiver 30 floats 33 circuit board 35 Water quality measurement unit 40 measuring pulley 41 Magnet 45 signal detector 50 constant torque spring 51 Axis 52 bearing 53 drums

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01N 33/18 106 G08C 23/04

Claims (8)

(57) [Claims] 1. A water quality monitoring and measuring device that automatically moves up and down along the water surface, comprising a reel, a signal repeater, a float, and a water quality measuring unit. , A reel around which a signal cable fixedly mounted on a float is wound around the outer peripheral surface of the wheel, a receiving circuit, and an optical transmitter for screwing and fixing the measured value on the outer wheel wall of the reel. A signal repeater having a circuit board for transmitting to the optical receiver on the receiving circuit board by an optical signal, and provided at the extreme end of the signal cable, and further sealing several signal lines in the signal cable. The float includes a float connected to the circuit board inside the float, and a water quality measuring unit installed outside the float and connected to the circuit board inside the float by several signal lines. The outside water quality measurement unit has a PH value at a specified water depth. Water temperature, oxygen content, conductivity, turbidity and other water quality data are measured at any time, that is, the reel and the signal cable play two roles of suspending and holding the float and transmitting data, and also contactless transmission by optical signal. Method for a long time,
A water quality monitoring and measuring device that automatically moves up and down along the water surface, which is characterized by transmitting water quality monitoring and measurement signals at a constant water depth. 2. The automatic water surface according to claim 1, wherein a spring is wound around the inner circumference of the reel so that the reel has a function of automatically rotating and returning. A water quality monitoring and measuring device that moves up and down along the water. 3. An automatic transmission system according to claim 1, wherein one end of the signal cable penetrates through a ring wall outside the reel and is connected to a signal terminal on the circuit board. A water quality monitoring and measuring device that moves up and down along the water surface. 4. An electronic component such as a battery and an optical transmitter is installed on the circuit board.
3. A water quality monitoring and measuring device according to any one of 3 to 3, which automatically moves up and down along the water surface. 5. A water monitor according to claim 1, wherein the receiving circuit board is fixed to one end of a substrate support, and a data monitor is installed on the receiving circuit board. A water quality monitoring device that moves up and down. 6. The reel is provided with the measuring sheaves arranged symmetrically in parallel on one side of the reel, and the signal cable is wound around the ring surface periphery of the measuring sheaves. The water quality monitoring and measuring device according to any one of 1 to 5, which automatically moves up and down along the water surface. 7. A plurality of magnets are installed at equal intervals on the periphery of the measurement pulley, and a magnet-sensitive signal detector
7. The water quality monitoring and measuring device according to claim 6, wherein the rotating length of the measuring pulley is detected. 8. The reel is integrally pivoted to one end of a constant torque spring, and has a function of automatically rotating and returning the reel.
A water quality monitoring and measuring device that automatically moves up and down along the water surface.