CN210109014U - TDS detection system based on fluid water quality - Google Patents
TDS detection system based on fluid water quality Download PDFInfo
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- CN210109014U CN210109014U CN201920761838.0U CN201920761838U CN210109014U CN 210109014 U CN210109014 U CN 210109014U CN 201920761838 U CN201920761838 U CN 201920761838U CN 210109014 U CN210109014 U CN 210109014U
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Abstract
The embodiment of the utility model discloses TDS detecting system based on fluid water quality, include: the TDS detection device is provided with a TDS detection end and a first communication port and is used for acquiring original TDS detection data of the water quality of the target fluid; the temperature detection device is provided with a temperature detection end and a second communication port and is used for acquiring the temperature of the water quality of the target fluid; the flow detection device is provided with a flow detection end and a third communication port and is used for acquiring the flow of the water quality of the target fluid; a controller having a fourth communication port, a fifth communication port, and a sixth communication port; the first communication port is connected with the fourth communication port, the second communication port is connected with the fifth communication port, and the third communication port is connected with the sixth communication port. The utility model discloses a TDS detection device acquires the measured data, revises the TDS that can finally realize fluid quality of water according to temperature and flow again and detects, and it is high to detect the precision, and application scope is wide.
Description
Technical Field
The embodiment of the utility model provides a TDS water quality testing technical field, concretely relates to TDS detecting system based on fluid water quality.
Background
TDS water quality testing techniques are used to measure all solid matter dissolved in water, including minerals, salts and minute metallic substances dissolved in water. The units of measurement are ppm or mg/L, which indicates how many milligrams of soluble solids are dissolved in 1 liter of water. The strength of the conductivity of water is called conductance, which reflects how much soluble solids are in water. Conductivity is generally used to infer the salinity of a solution, the purer the water, the less soluble solids, the greater the resistance, the less conductivity, and the less conductive pure water.
At present, TDS water quality testing mode is the quality of water under to static state carries out TDS and detects, can't realize the accurate detection of TDS to fluid water quality.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a TDS detection method and detecting system based on fluid water quality to can't carry out the problem that the TDS accurately detected to fluid water quality among the solution prior art.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
an embodiment of the utility model discloses a TDS detecting system based on fluid water quality, include: a TDS detection device having a TDS detection end and a first communication port, the TDS detection device for contacting a target fluid quality of water through the TDS detection end to obtain raw TDS detection data of the target fluid quality of water; the temperature detection device is provided with a temperature detection end and a second communication port and is used for contacting the target fluid water quality through the temperature detection end so as to obtain the temperature of the target fluid water quality; the flow detection device is provided with a flow detection end and a third communication port and is used for contacting the target fluid water quality through the flow detection end so as to obtain the flow of the target fluid water quality; a controller having a fourth communication port, a fifth communication port, and a sixth communication port; the first communication port is connected with the fourth communication port, the second communication port is connected with the fifth communication port, and the third communication port is connected with the sixth communication port; the controller is used for obtaining a final TDS detection result of the target fluid water quality according to the original TDS detection data, the temperature and the flow.
Further, the temperature detection device is an NTC temperature sensor.
Further, the flow detection device is an FM-HL3012 Hall flow meter.
Further, the controller is a CSU38M20-SSOP28 model controller.
The embodiment of the utility model provides a have following advantage:
through TDS detection device data, revise according to temperature and flow again and can finally realize the TDS of fluid quality of water and detect, it is high to detect the precision, and application scope is wide.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a block diagram of a TDS detection system based on fluid water quality according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a TDS detection apparatus according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a temperature detection device according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a controller according to an embodiment of the present invention.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a block diagram of a TDS detection system based on fluid water quality according to an embodiment of the present invention. As shown in fig. 1, the TDS detection system based on fluid water quality of the embodiment of the present invention includes a TDS detection device 100, a temperature detection device 200, a flow detection device 300 and a controller 400.
Wherein, TDS detection device 100 has TDS sense terminal and first communication port, and TDS detection device is used for passing through TDS sense terminal contact target fluid quality of water to acquire the original TDS detection data of target fluid quality of water.
The temperature sensing device 200 has a temperature sensing terminal and a second communication port. The temperature detection device 200 is used for contacting the target fluid water quality through the temperature detection end to acquire the temperature of the target fluid water quality.
The flow sensing device 300 has a flow sensing end and a third communication port. The flow rate detection device 300 is used for contacting the target fluid water quality through the flow rate detection end to obtain the flow rate of the target fluid water quality.
The controller 400 has a fourth communication port, a fifth communication port and a sixth communication port. The first communication port is connected with the fourth communication port, the second communication port is connected with the fifth communication port, and the third communication port is connected with the sixth communication port.
The controller 400 may obtain a final TDS measurement of the target fluid quality based on the raw TDS measurement data, the temperature, and the flow rate. Because the TDS detection result of the fluid water quality is greatly influenced by temperature and flow, the detection precision is poor. The utility model discloses a temperature that temperature-detecting device detected target fluid quality of water to detect the flow of target fluid quality of water through flow detection device.
In one embodiment of the present invention, the controller 400 obtains the first conductivity according to the original TDS detection data, the temperature and the preset conductivity-temperature compensation table. The preset conductivity-temperature compensation table is shown in table 1.
| Serial number | Temperature | Compensation formula | |
| 1 | ≤10℃ | electornic_conductor＝siemens_value/(0.0169*temperature+0.5583) | |
| 2 | 10-20℃ | electornic_conductor＝siemens_value/(0.018*temperature+0.5473) | |
| 3 | 20-30℃ | electornic_conductor＝siemens_value/(0.0189*temperature+0.5281) | |
| 4 | ≥30℃ | electornic_conductor＝siemens_value/(0.022*temperature+0.45) |
TABLE 1 conductivity-temp. COMPENSATION METER
Wherein, the electronic _ conductor is the conductivity, siemens _ value is the original TDS detection value, and temperature is the detected temperature.
The controller 400 may look up table 1 based on the raw TDS detection data and the temperature and derive the first conductivity based on a corresponding compensation formula.
The controller 400 may obtain a final TDS detection result according to the first conductivity and a preset flow-conductivity correspondence table. The preset flow-conductivity correspondence table is shown in table 2.
TABLE 2 flow-conductivity mapping Table
Wherein, the final TDS is a final TDS detection result, and the electronic _ conductor is the first conductivity.
And inquiring the table 2 according to the original TDS detection data and the temperature and obtaining a final TDS detection result according to a corresponding correction formula.
In an embodiment of the present invention, the temperature detecting device 200 is an NTC temperature sensor. The NTC temperature sensor has the advantages of high sensitivity, high response speed, good insulation and sealing performance, good mechanical impact resistance and good bending resistance.
In an embodiment of the present invention, the flow detection device 300 is an FM-HL3012 hall flowmeter. The FM-HL3012 Hall flowmeter has the advantages of small volume, light weight, high flow measurement precision, high reliability and long service life.
In one embodiment of the present invention, the controller 400 is a CSU38M20-SSOP28 model controller.
Fig. 2 is a schematic circuit diagram of a TDS detection device in an embodiment of the present invention, fig. 3 is a schematic circuit diagram of a temperature detection device in an embodiment of the present invention, and fig. 4 is a schematic circuit diagram of a controller in an embodiment of the present invention.
As shown IN fig. 2 to 4, TDS _ OUT1 of the TDS detecting device 100 is connected to 16 ports of the controller 400, TDS _ OUT2 of the TDS detecting device 100 is connected to 18 ports of the controller 400, and TDS _ IN of the TDS detecting device 100 is connected to 17 ports of the controller 400. The controller 400 sends a periodic PWM duty cycle TDS _ OUT1 low and TDS _ OUT2 high, recording the TDS _ IN sample as raw TDS detection data. The TDS detection device 100 operates IN a manner that the controller 400MCU detects the TDS _ IN to ground (TDS _ OUT2) voltage value to perform a/D conversion, and the controller converts the sampled voltage value into an actual TDS conductance value.
The TEMP _ OUT of the temperature sensing device 200 is connected to the 23 port of the controller 400, and the TEMP _ IN of the temperature sensing device 200 is connected to the 22 port of the controller 400. The temperature detection device 200 works IN such a way that the controller 400MCU detects TEMP _ IN and performs A/D conversion on the voltage to ground, and the current water temperature value can be calculated by the controller through sampling the voltage value and corresponding to the table look-up data.
The output port of the flow sensing device 300 is connected to the 12 ports of the controller 400.
In addition, other configurations and functions of the TDS detection system based on fluid water quality according to the embodiment of the present invention are known to those skilled in the art, and are not described in detail for reducing redundancy.
The utility model discloses TDS detecting system based on fluid water quality through TDS detection device data, revises the TDS that can finally realize fluid water quality according to temperature and flow again and detects, and it is high to detect the precision, and application scope is wide.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (4)
1. A TDS detection system based on fluid water quality comprising:
a TDS detection device having a TDS detection end and a first communication port, the TDS detection device for contacting a target fluid quality of water through the TDS detection end to obtain raw TDS detection data of the target fluid quality of water;
the temperature detection device is provided with a temperature detection end and a second communication port and is used for contacting the target fluid water quality through the temperature detection end so as to obtain the temperature of the target fluid water quality;
the flow detection device is provided with a flow detection end and a third communication port and is used for contacting the target fluid water quality through the flow detection end so as to obtain the flow of the target fluid water quality;
a controller having a fourth communication port, a fifth communication port, and a sixth communication port;
the first communication port is connected with the fourth communication port, the second communication port is connected with the fifth communication port, and the third communication port is connected with the sixth communication port.
2. The TDS detection system based on fluid water quality as claimed in claim 1 wherein the temperature detection device is an NTC temperature sensor.
3. The TDS detection system based on fluid water quality as claimed in claim 1 wherein the flow detection device is FM-HL3012 hall flow meter.
4. The TDS detection system based on fluid water quality as claimed in claim 1 characterized by the controller being a CSU38M20-SSOP28 model controller.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110044968A (en) * | 2019-05-24 | 2019-07-23 | 武汉慧达电子科技有限公司 | TDS detection method and detection system based on fluid water quality |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110044968A (en) * | 2019-05-24 | 2019-07-23 | 武汉慧达电子科技有限公司 | TDS detection method and detection system based on fluid water quality |
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