CN219608826U

CN219608826U - Multi-parameter water environment detection sensor

Info

Publication number: CN219608826U
Application number: CN202320853862.3U
Authority: CN
Inventors: 刘艳平
Original assignee: Guangdong Quality Control Cloud Technology Co ltd
Current assignee: Guangdong Quality Control Cloud Technology Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-08-29
Anticipated expiration: 2033-04-17

Abstract

The utility model discloses a multi-parameter water environment detection sensor, which comprises: the device comprises a shell, wherein a main control circuit board is fixedly connected to the inside of the shell, the main control circuit board is integrated with a main chip, a reference circuit, a 485 communication circuit and a plurality of detection circuits, the main control circuit board is connected with a communication plug through a wire, one end of the wire connected with the communication plug penetrates through the shell to be arranged and extend to the outer side of the shell, one end of the shell is detachably connected with a mounting head, a plurality of probes are embedded in the mounting head, and the probes are connected with the main control circuit board through internal wiring. According to the utility model, a plurality of detection circuits are integrated in a single sensor, the probe embedded in the mounting head is matched to detect the water environment, and the sensor can detect a plurality of water environment data and upload the data to the upper computer, so that the device is convenient to carry and simple to operate.

Description

Multi-parameter water environment detection sensor

Technical Field

The disclosure relates to the technical field of water quality detection equipment, in particular to a multi-parameter water environment detection sensor.

Background

The fish pond is used as a place for cultivating fish, has certain requirements on the water quality of the fish pond, and can maintain a good living environment of the fish only by maintaining the water environment of the fish pond within a certain range, so that various values such as the pH value, the water temperature, the numerical value of soluble solids, the conductivity, the salinity, the redox unit and the like in the water environment are required to be detected through water quality monitoring equipment, the existing water environment detection equipment is used for respectively placing different sensor probes into water for detection, and then the data are returned to an upper computer, so that the detection is troublesome and a plurality of sensor probes are required to be carried.

Disclosure of Invention

The present disclosure provides a multi-parameter water environment detection sensor to address one of the technical issues recognized by the inventors.

The utility model provides a multiparameter water environment detection sensor, which comprises a housin, the inside fixedly connected with main control circuit board of casing, main control circuit board integration has main chip, reference circuit, 485 communication circuit and a plurality of detection circuit, main control circuit board is connected with communication plug through the wire, the wire with the one end that communication plug is connected runs through the casing sets up and extends to the outside of casing, the one end of casing can be dismantled and be connected with the installation head, the installation head inlays and is equipped with a plurality of probes, the probe with main control circuit board passes through the inside wiring and is connected.

Preferably, the reference circuit includes an operational amplifier U5B, a fifth pin of the operational amplifier U5B is connected to one end of an adjustable resistor SR1, a resistor R13 and a capacitor C20, the other end of the resistor R13 and the capacitor C20 is connected to the ground, and a sixth pin of the operational amplifier is connected to a seventh pin of the operational amplifier.

Preferably, the plurality of detection circuits includes a PH value detection circuit, an EC value detection circuit, an OPR value detection circuit, a TDS value detection circuit, and a temperature detection circuit.

Preferably, the PH value detection circuit includes an operational amplifier U5A, a first pin of the operational amplifier U5A is connected to one end of a resistor R15, the other end of the resistor R15 is respectively connected to a resistor R16 and a second pin of the operational amplifier U5A, and the resistor R16 is grounded.

Preferably, the EC value detection circuit, the OPR value detection circuit, and the TDS value detection circuit measure potentials through operational amplifiers U6B, U B and U6A, respectively.

Preferably, the temperature detection circuit includes an operational amplifier U7A, a positive input end of the operational amplifier U7A is connected with a thermistor P3, two ends of the thermistor P3 are respectively connected with a capacitor C22 and a capacitor C23 in parallel, a resistor R19 is arranged between the capacitor C22 and the capacitor C23, and a first pin of the thermistor P3 is connected with the resistor R18.

Preferably, the 485 communication circuit comprises a chip MAX485, the first pin of chip MAX485 is connected with the collecting electrode of triode Q1 and connects, triode Q1's base connecting resistance R3, chip MAX 485's second pin has connected gradually resistance R7, R11, R12 and triode Q2's base, triode Q2's collecting electrode with chip MAX 485's second pin is connected, chip MAX 485's third pin is connected with the second pin, chip MAX 485's fourth, fifth pin ground, chip MAX 485's sixth pin is connected with resistance R9 and connector P2's second pin, chip MAX 485's seventh pin with connector P2's first pin is connected, chip MAX 485's seventh pin and sixth pin are connected through resistance R8, chip MAX 485's seventh pin is connected with resistance R5, resistance R5 ground, chip MAX485 eighth pin is connected with electric capacity C5's one end, electric capacity C5 and parallel connection ground.

Preferably, the model of the main chip is HBM32G030.

Preferably, a plurality of wire clamps are integrally formed on one side of the shell, and the wires are detachably connected in the wire clamps.

Preferably, the side of the shell is fixedly connected with a hanging plate.

The beneficial effects of the present disclosure mainly lie in: according to the utility model, a plurality of detection circuits are integrated in a single sensor, the probe embedded in the mounting head is matched to detect the water environment, and the sensor can detect a plurality of water environment data and upload the data to the upper computer, so that the device is convenient to carry and simple to operate.

It is to be understood that both the foregoing general description and the following detailed description are for purposes of example and explanation and are not necessarily limiting of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the present disclosure. Meanwhile, the description and drawings are used to explain the principles of the present disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the prior art, the drawings that are required in the detailed description or the prior art will be briefly described, it will be apparent that the drawings in the following description are some embodiments of the present disclosure, and other drawings may be obtained according to the drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of a multi-parameter water environment detection sensor according to an embodiment of the present disclosure;

FIG. 2 is a reference circuit schematic of an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a PH detection circuit according to an embodiment of the disclosure;

FIG. 4 is a schematic diagram of an EC value detection circuit according to an embodiment of the disclosure;

FIG. 5 is a schematic diagram of an OPR value detection circuit according to an embodiment of the disclosure;

FIG. 6 is a schematic diagram of a TDS value detection circuit according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a temperature detection circuit according to an embodiment of the disclosure;

fig. 8 is a schematic diagram of a 485 communication circuit according to an embodiment of the disclosure;

fig. 9 is a schematic diagram of a master chip according to an embodiment of the disclosure.

Icon: 1-a housing; 2-mounting heads; 21-probe; 3-conducting wires; 31-a communication plug; 4-wire clamps; 5-hanging plate.

Detailed Description

The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present disclosure.

Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

In the description of the present disclosure, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present disclosure, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.

Examples

As shown in fig. 1-9, the embodiment provides a multi-parameter water environment detection sensor, which comprises a shell 1, wherein a main control circuit board is fixedly installed in the shell 1 through bolts, a main chip, a reference circuit, a 485 communication circuit and a plurality of detection circuits are integrated on the main control circuit board, the model of the main chip is HBM32G030 and is used for receiving and processing data, and the reference circuit mainly provides reference points for other electrodes; the 485 communication circuit can output the acquired data to an upper computer; the detection circuit is used for detecting water environment data; the main control circuit board is connected with a communication plug 31 through a wire 3, the wire 3 penetrates through the shell 1 and is arranged on the outer side of the shell 1, and the wire is connected with a communication interface of an upper computer through the communication plug 31 to perform data transmission; one end of the shell 1 is connected with a mounting head 2 through threads, a plurality of probes 21 are embedded on the mounting head 2, the probes 21 are connected with the main control circuit board through internal wiring, and the connection part of the lead 3, the mounting head 2 and the shell 1 is sealed through sealing materials, so that internal water inflow is avoided. When the sensor is used, the sensor is connected with a communication interface of the upper computer through the communication plug 31 for data transmission, then the sensor is placed in water, the water environment information is detected through the probe 21, the water environment information is converted into specified data through the detection circuit and the reference circuit, the specified data is transmitted to the upper computer through the 485 communication circuit after being processed by the main chip, and various data parameters of the water environment can be detected simultaneously.

As shown in fig. 2, the reference circuit includes an operational amplifier U5B, wherein a fifth pin of the operational amplifier U5B is connected to one end of an adjustable resistor SR1, a resistor R13 and a capacitor C20, the other end of the resistor R13 and the capacitor C20 is connected to the ground, and a sixth pin of the operational amplifier is connected to a seventh pin. The reference point is provided by the operational amplifier U5B.

As shown in fig. 3-7, the plurality of detection circuits includes a PH value detection circuit, an EC value detection circuit, an OPR value detection circuit, a TDS value detection circuit, and a temperature detection circuit.

Specifically, the PH value detection circuit includes an operational amplifier U5A, a first pin of the operational amplifier U5A is connected to one end of a resistor R15, the other end of the resistor R15 is respectively connected to a resistor R16 and a second pin of the operational amplifier U5A, and the resistor R16 is grounded. And (3) measuring the potential of the PH electrode by using a proportional operational amplifier circuit, and comparing the potential with a reference circuit to obtain PH value data of water.

Specifically, the EC value detection circuit, the OPR value detection circuit, and the TDS value detection circuit measure potentials through operational amplifiers U6B, U B and U6A, respectively. The EC value detection circuit mainly measures the potential of an EC (conductivity) electrode, and the potential of the electrode is relatively high, so that an amplifying circuit is not needed, a potential follower circuit is added, and the potential is not influenced by other parts of the circuit; the OPR value detection circuit mainly measures the potential of an OPR (oxidation reduction potential) electrode, and the potential of the electrode is relatively high, so that an amplifying circuit is not needed, a potential follower circuit is added, and the potential is not influenced by other parts of the circuit; the TDS value detection circuit mainly measures the potential of a TDS (total number of soluble solids in water) electrode, and the potential of the electrode is relatively high, so that an amplifying circuit is not needed, a potential follower circuit is added, and the potential is not influenced by other parts of the circuit; and, the salinity and S.G (sea water specific gravity) in the water can be calculated by the TDS value, thereby realizing detection of various data.

Specifically, the temperature detection circuit includes an operational amplifier U7A, a positive input end of the operational amplifier U7A is connected with a thermistor P3, two ends of the thermistor P3 are respectively connected with a capacitor C22 and a capacitor C23 in parallel, a resistor R19 is arranged between the capacitor C22 and the capacitor C23, and a first pin of the thermistor P3 is connected with the resistor R18. By measuring the point position of the thermistor P3, the potential is ensured not to be influenced by other parts of the circuit by dividing the voltage of the thermistor and accessing into a potential follower circuit.

As shown in fig. 8, the 485 communication circuit includes a chip MAX485, the first pin of chip MAX485 is connected with the collecting electrode of triode Q1 and connects, triode Q1's base connecting resistance R3, chip MAX 485's second pin has connected gradually resistance R7, R11, R12 and triode Q2's base, triode Q2's collecting electrode with chip MAX 485's second pin is connected, chip MAX 485's third pin is connected with the second pin, chip MAX 485's fourth, fifth pin ground, chip MAX 485's sixth pin is connected with resistance R9 and connector P2's second pin, chip MAX 485's seventh pin with connector P2's first pin is connected, chip MAX 485's seventh pin and sixth pin are connected through resistance R8, chip MAX 485's seventh pin is connected with resistance R5, resistance R5 ground, chip MAX 485's eighth pin is connected with electric capacity C5's one end, the other end and electric capacity C5 and connect in parallel. By using MAX485 conversion and 485 communication protocol, the collected data can be transmitted to an upper computer to complete data transmission.

Further, one side integrated into one piece of casing 1 has a plurality of fastener 4, in order to avoid wire 3 to put in order when idle and lead to the winding, through inlaying the direction in order and establish into fastener 4, orderly put wire 3, realize the accomodating of wire 3.

Further, the hanging plate 5 is integrally formed on the side face of the shell 1 or is fixed by bolts, the cross section of the hanging plate 5 is of a 7-shaped structure, and the sensor is installed on an upper computer through the hanging plate 5 when the portable electronic device is idle.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present disclosure, and not for limiting the same; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A multi-parameter water environment detection sensor, comprising: the device comprises a shell, wherein a main control circuit board is fixedly connected to the inside of the shell, the main control circuit board is integrated with a main chip, a reference circuit, a 485 communication circuit and a plurality of detection circuits, the main control circuit board is connected with a communication plug through a wire, one end of the wire connected with the communication plug penetrates through the shell to be arranged and extend to the outer side of the shell, one end of the shell is detachably connected with a mounting head, a plurality of probes are embedded in the mounting head, and the probes are connected with the main control circuit board through internal wiring.

2. The multi-parameter water environment detection sensor according to claim 1, wherein the reference circuit comprises an operational amplifier U5B, a fifth pin of the operational amplifier U5B is connected with an adjustable resistor SR1, a resistor R13 and one end of a capacitor C20, the other end of the resistor R13 and the other end of the capacitor C20 are connected to the ground, and a sixth pin of the operational amplifier is connected to a seventh pin of the operational amplifier.

3. The multi-parameter aqueous environment detection sensor of claim 2, wherein the plurality of detection circuits comprises a PH value detection circuit, an EC value detection circuit, an OPR value detection circuit, a TDS value detection circuit, and a temperature detection circuit.

4. A multiparameter water environment detection sensor according to claim 3, wherein the PH detection circuit comprises an operational amplifier U5A, a first pin of the operational amplifier U5A is connected to one end of a resistor R15, the other end of the resistor R15 is respectively connected to a resistor R16 and a second pin of the operational amplifier U5A, and the resistor R16 is grounded.

5. A multiparameter aqueous environment detection sensor according to claim 3, wherein the EC value detection circuit, OPR value detection circuit, TDS value detection circuit measure potential via operational amplifiers U6B, U B and U6A, respectively.

6. A multiparameter water environment detection sensor according to claim 3, wherein the temperature detection circuit comprises an operational amplifier U7A, a positive input end of the operational amplifier U7A is connected with a thermistor P3, two ends of the thermistor P3 are respectively connected with a capacitor C22 and a capacitor C23 in parallel, a resistor R19 is arranged between the capacitor C22 and the capacitor C23, and a first pin of the thermistor P3 is connected with the resistor R18.

7. The multi-parameter water environment detection sensor according to claim 1, wherein the 485 communication circuit comprises a chip MAX485, a first pin of the chip MAX485 is connected with a collector of a triode Q1, a base of the triode Q1 is connected with a resistor R3, a second pin of the chip MAX485 is sequentially connected with resistors R7, R11 and R12 and a base of a triode Q2, the collector of the triode Q2 is connected with the second pin of the chip MAX485, a third pin of the chip MAX485 is connected with the second pin, a fourth pin and a fifth pin of the chip MAX485 are grounded, a sixth pin of the chip MAX485 is connected with a resistor R9 and a second pin of a connector P2, a seventh pin of the chip MAX485 is connected with the first pin of the connector P2, a seventh pin of the chip MAX485 is connected with the base of the triode Q2 through a resistor R8, a seventh pin of the chip MAX485 is connected with a resistor R5, the resistor R5 is grounded, and a fourth pin of the chip MAX485 is connected with a capacitor C5 and one end of the capacitor C5 is connected with the capacitor C5.

8. The multi-parameter water environment detection sensor of claim 1, wherein the primary chip is of the type HBM32G030.

9. The sensor of claim 1, wherein a plurality of clamps are integrally formed on one side of the housing, and the wires are detachably connected to the clamps.

10. The multi-parameter water environment detection sensor of claim 1, wherein a hanging plate is fixedly connected to the side surface of the shell.