TWI683504B - Portable water quality sensing device - Google Patents

Abstract

The present invention relates to a portable water quality sensing device. The water quality sensing device includes a sensing module for detecting digital sensing values in a water area, and the sensing module includes at least one power source that requires low voltage to drive The first sensor and at least one second sensor that requires low-voltage and high-voltage electrical energy to drive and has a self-cleaning function, and is electrically connected to a processing module for analyzing digital sensing values on one side of the sensing module The sensor module and the processing module are electrically connected to the other side of the power supply module. When the water quality sensing device performs the detection operation, the power supply of the power module can provide high voltage Electric energy, and the high-voltage electric energy can be stepped down into low-voltage electric energy through the step-down circuit, so that the first sensor and the second sensor can be supplied by a single power supply to avoid different power consumption speeds And, it can prevent the sensor module from returning wrong detection value, thereby improving the accuracy of water quality detection.

Description

Portable water quality sensing device

The present invention provides a portable water quality sensing device, especially a power supply of a power module that can step down high-voltage electrical energy into low-voltage electrical energy through a step-down circuit to supply the first sensor of the sensing module And the second sensor with self-cleaning function is used to avoid the loss of different power consumption speeds, so as to prevent the sensor module from returning wrong detection values.

According to press, with the rapid development of science and technology and industry, its environmental pollution problem is becoming more and more serious, among which water source pollution is the most serious problem. At present, factories often have untreated waste or wastewater and other pollutants dumped into rivers and reservoirs Or water channels such as water delivery channels, however, these pollutants will be polluted by rainwater and confluent, which will pollute irrigation or livelihood water, which will not only increase the cost of water treatment, but also may cause pollution damage to human bodies or aquatic organisms.

Therefore, government agencies or environmental protection inspection companies employed by the government will use portable water quality sensing devices to conduct random inspection operations in the waters discharged by the factories to find out whether these factories have arbitrarily discharged pollutants. However, At present, water quality testing operations need to detect turbidity, suspended solids, dissolved oxygen, temperature, electrical conductivity or pH value in water quality, so portable water quality sensing devices are equipped with the above types The sensor of the item.

Furthermore, most sensors are usually driven by batteries with low voltage (such as 3.3 or 5 volts), but a small number of sensors need to be used with motors (such as turbidity sensor) The sensor or suspended solid sensor needs a cleaning brush, and the cleaning brush needs a motor to drive), so a small number of sensors need to be driven by a battery with a high voltage (such as: 12 volts), so that water The quality sensing device will be equipped with two kinds of batteries for low voltage and high voltage.

However, when two types of batteries are used to supply different sensors, the power consumption rate of the two types of batteries is different, so if one of the batteries is insufficient, the sensor will return an abnormal value (for example: high When the battery with low voltage is discharged, the low-voltage battery will continue to drive the sensor to perform the detection operation, but because the battery with high voltage is discharged, the motor cannot be driven, so a small number of sensors will detect the value An error occurred), resulting in an error in the output test report.

Therefore, how to solve the above-mentioned lack of inconvenience and inconvenience is the direction of improvement for those engaged in this industry.

Therefore, in view of the above-mentioned deficiencies, the inventors collected relevant data, and after various evaluations and considerations, they have designed the invention patent for this portable water quality sensing device.

The main purpose of the present invention is that the water quality sensing device is a sensing module for detecting digital sensing values in a water area, and the sensing module includes at least one first sensor that requires low-voltage electrical energy to drive Sensor, and at least one second sensor that requires low-voltage and high-voltage electrical energy to drive and has a self-cleaning function, and a processing module for analyzing digital sensing values is electrically connected to one side of the sensing module, and The sensing module and the processing module are electrically connected to the other side of the power supply module, and the power module includes a power supply that provides high-voltage power, and the second sense is electrically connected to the power supply side The detector forms an electrically connected high-voltage voltage stabilizing circuit, and the other side of the high-voltage voltage stabilizing circuit is electrically connected to a step-down circuit, and then the other side of the step-down circuit is electrically connected to the first sensor And the second sensor form an electrically connected low voltage regulator circuit. When the water quality sensing device performs the detection operation, the power module can reduce the high voltage power to a low voltage through the step-down circuit Electric energy can be supplied to the first sensor and the second sensor by a single power supply, thereby avoiding different power consumption speeds, and preventing the sensor module from returning wrong detection values, thereby improving water quality The purpose of testing accuracy.

The secondary purpose of the present invention is that when the power supply of the power supply module is insufficient, the power detection module will send a power-off signal to the power supply, so that the power supply can stop power transmission, thereby avoiding the shortage of power supply , Which affects the detection accuracy of the sensor module, thereby preventing the sensor module from returning wrong detection values.

Another object of the present invention is that the power supply of the power module can reduce high-voltage power to low-voltage power through a step-down circuit, so the power module only needs one power supply to supply sensing The first sensor and the second sensor of the module use electric energy, which can reduce the cost of the battery, and can reduce the space occupied, so that the overall volume and weight of the water quality sensing device can be reduced, thereby facilitating portability and use. To achieve the purpose of enhancing convenience and market competitiveness.

1‧‧‧Water quality sensing device

11‧‧‧sensing module

111‧‧‧ First sensor

112‧‧‧Second sensor

1121‧‧‧Cleaning brush

12‧‧‧Processing module

121‧‧‧Signal processing unit

122‧‧‧Human-machine interface

123‧‧‧ storage unit

13‧‧‧Power Module

131‧‧‧Power supply

1311‧‧‧Charging interface

132‧‧‧High voltage regulator circuit

133‧‧‧ Buck circuit

134‧‧‧Low voltage regulator circuit

135‧‧‧Electricity detection module

The first figure is a block diagram of the present invention.

In order to achieve the above-mentioned objectives and effects, the technical means and structure adopted by the present invention, the drawings and details of the preferred embodiments of the present invention are described in detail below. Their features and functions are as follows, so that they can fully understand.

Please refer to the first figure, which is a block diagram of the present invention, which can be clearly seen from the figure It can be seen that the portable water quality sensing device of the present invention, the water quality sensing device 1 includes a sensing module 11, a processing module 12, and a power module 13, wherein: the sensing module 11 is detectable in water Digital sensing values (eg turbidity, suspended solids, dissolved oxygen, temperature, conductivity, pH value, salinity, redox potential, total dissolved solids or chlorophyll a), and includes at least one that requires a low voltage The first sensor 111 driven by electrical energy and at least one second sensor 112 that requires low-voltage and high-voltage electrical energy drive and has a self-purification function, and the second sensor 112 is provided with an electrical energy drive requiring high voltage Cleaning brush 1121 with cleaning function.

The processing module 12 is electrically connected to the sensing module 11, and the processing module 12 includes electrically connected to at least one first sensor 111 and a second sensor 112 for analyzing digital sensing The numerical signal processing unit 121 is electrically connected to the signal processing unit 121 side with a man-machine interface 122 that can operate or set the processing module 12, and a storage unit 123 that can store digital sensing numerical data.

The power module 13 is electrically connected to the sensing module 11 and the processing module 12 and can provide the power required by the sensing module 11 and the processing module 12, and the power module 13 includes a high-voltage The power supply 131 for electrical energy is electrically connected to the charging interface 1311 on one side of the power supply 131, and is electrically connected to the cleaning brush 1121 of the second sensor 112 on the other side of the power supply 131 to form a high electrical connection The voltage stabilizing circuit 132 is electrically connected to the step-down circuit 133 on the other side of the high voltage stabilizing circuit 132, and is electrically connected to the first sensor 111 and the second sensor 112 on the other side of the step-down circuit 133 An electrically connected low voltage regulator circuit 134 is formed. In addition, the power supply 131 is electrically connected to a power detection module 13 that can detect the remaining power of the power supply 131 and emit a power-off signal when the power is insufficient 5.

The first sensor 111 of the sensing module 11 may be a temperature sensor, a conductivity sensor, a pH sensor, a dissolved oxygen sensor, a salinity sensor, and a total dissolved solids sensor Sensor or redox potential sensor that only needs low voltage power to drive, and the second sensor 112 can be a turbidity sensor, a suspended solids sensor or a chlorophyll a sensor Sensors that have self-cleaning functions and require low-voltage electrical energy and high-voltage electrical energy to drive.

Furthermore, the power supply 131 of the power supply module 13 can be various types of batteries such as lithium batteries, accumulators, or rechargeable batteries, and the power required by the sensing module 11 and the processing module 12 can be provided through the power supply 131. The charging interface 1311 of the power supply 131 can be a power plug or a universal serial bus (USB) plug, etc., and the charging interface 1311 can be used to form electrical properties with an external power source (such as a mains socket, generator, or mobile power supply, etc.) Connect to get power from an external power source to achieve the effect of charging.

When the present invention is actually used, the sensing module 11 of the water quality sensing device 1 can be placed in a water area to be detected (such as a water environment such as a reservoir, river, lake, water trough, channel or ocean). The power supply 131 of the power module 13 can transmit high-voltage (eg, 12 volt) power to the high-voltage regulator circuit 132, so that the high-voltage regulator circuit 132 can constantly transmit high-voltage power to the sensing module 11 The second sensor 112 and the step-down circuit 133 can further drive the cleaning brush 1121 of the second sensor 112 to perform the cleaning operation, and after the step-down circuit 133 receives the high-voltage power, the high-voltage The electrical energy is reduced to low voltage (eg, 3.3 or 5 volts), and then the low voltage energy is transmitted to the low voltage regulator circuit 134, so that the low voltage power regulator circuit 134 can transmit the low voltage power To the sensing module 11 and the processing module 12, thereby making the first sense of the sensing module 11 Both the detector 111 and the second sensor 112 obtain electric energy and can perform water quality detection in the water area, and the processing module 12 will obtain electric energy to operate. During the process of water quality detection, the second The sensor 112 can perform the cleaning operation through the cleaning brush 1121 to maintain the accuracy of detection, and the digital sensing value detected by the sensing module 11 is transmitted to the signal of the processing module 12 The processing unit 121 performs analysis and processing, and can use the storage unit 123 of the processing module 12 to store and record digital sensing values, thereby completing the water quality detection operation.

However, while the above-mentioned water quality sensing device 1 is used, the power detection module 135 of the power module 13 detects the remaining power of the power supply 131 of the power module 13, and when the remaining power is lower than the preset value , Which means that the remaining power is insufficient. At this time, the power detection module 135 will send out a power outage signal (such as: high level signal, low level signal or surge signal, etc.) to the power supply 131, so that the power supply The power supply 131 stops transmitting electrical energy to the sensing module 11 to make the water quality sensing device 1 sleep or shut down, which can prevent the sensing module 11 from being inaccurately detected or returning wrong detection values due to insufficient power. Situation; As for the power detection module 135, which can be a voltage detection circuit, the remaining power can be obtained by detecting the voltage value in the power supply 131.

And when the water quality sensing device 1 is in a sleep or shutdown state due to insufficient power, it is preferable that the charging interface 1311 of the power supply 131 can be electrically connected to the external power supply to charge the power supply 131 through the external power supply Operation, but in actual application, the power supply 131 can also be directly replaced, so that the water quality sensing device 1 has sufficient power.

In addition, the power detection module 135 of the power module 13 is preferably further electrically connected with a warning unit [such as: a buzzer, a horn, or a light-emitting diode (LED) A warning device that can produce a warning or warning effect; not shown in the figure], when the power supply 131 of the power module 13 is insufficient, the warning unit can be used to emit a warning signal such as a light or a buzzer to inform The user's battery is low.

The present invention has the following advantages:

(1) The power supply 131 of the power module 13 can provide high-voltage power, and the power supply 131 can step down the high-voltage power into low-voltage power through the step-down circuit 133, and a single power supply can be used The power supply 131 is used to supply the first sensor 111 of the sensing module 11 and the second sensor 112 with self-cleaning function. By using a single power supply 131, there will be no loss of different power consumption speeds as conventionally known. The detection module 11 can be prevented from returning wrong detection values, thereby improving the accuracy of water quality detection.

(2) When the power supply 131 of the power module 13 has insufficient power, the power detection module 135 will send a power-off signal to the power supply 131, so that the power supply 131 stops transmitting power, and then the water quality sensing device 1 is rendered In the sleep or shutdown state, it is possible to avoid insufficient power supply 131 power, which affects the detection accuracy of the sensing module 11, thereby preventing the sensing module 11 from returning wrong detection values.

(3) The power supply 131 of the power module 13 can reduce high-voltage power to low-voltage power through the step-down circuit 133, so the power module 13 only needs one power supply 131 to supply sensing The first sensor 111 of the module 11 and the second sensor 112 with self-cleaning function use electric energy, which can reduce the use of batteries that provide low-voltage electric energy compared with the conventional technology, which not only reduces the battery cost, but also The space occupied is reduced, and the overall volume and weight of the water quality sensing device 1 can be reduced, thereby being convenient to carry and use, and improving convenience and market competitiveness.

The above are only the preferred embodiments of the present invention, which does not limit the scope of the patent of the present invention. Therefore, any simple modification and equivalent structural changes caused by the description and drawings of the present invention should be included in the same reason. Within the scope of the patent of this invention, Chen Ming is granted.

In summary, the above-mentioned portable water quality sensing device of the present invention is actually able to achieve its efficacy and purpose when it is actually applied and implemented. Therefore, the present invention is a research and development with excellent practicability, which is in accordance with the application requirements of the invention patent I have filed an application in accordance with the law, and I hope the review committee will grant the case as soon as possible to protect the inventor’s hard research and development and creation.

1‧‧‧Water quality sensing device

11‧‧‧sensing module

111‧‧‧ First sensor

112‧‧‧Second sensor

1121‧‧‧Cleaning brush

12‧‧‧Processing module

121‧‧‧Signal processing unit

122‧‧‧Human-machine interface

123‧‧‧ storage unit

13‧‧‧Power Module

131‧‧‧Power supply

1311‧‧‧Charging interface

132‧‧‧High voltage regulator circuit

133‧‧‧ Buck circuit

134‧‧‧Low voltage regulator circuit

135‧‧‧Electricity detection module

Claims (7)

A portable water quality sensing device, the water quality sensing device includes a sensing module for detecting digital sensing values in a water area, and is electrically connected to a side of the sensing module for analyzing digital sensing A processing module for measuring the value, and the sensing module and the processing module are provided with a power supply module for supplying electric energy of the sensing module and the processing module on the other side, characterized in that the sensing module includes At least one first sensor and at least one second sensor provided with a cleaning brush inside to perform a cleaning action and having a self-cleaning function, and the power module includes a power supply that provides high-voltage electrical energy, and A high-voltage voltage stabilizing circuit that is electrically connected to the cleaning brush and makes constant output of high-voltage electric energy to the cleaning brush is driven on the side of the power supply, and the high-voltage voltage stabilizing circuit is A voltage reduction circuit for receiving high-voltage power and stepping down the high-voltage power into low-voltage power is electrically connected to the side, and the first sensor and the first sensor and the The second sensor forms a low-voltage regulator circuit that is electrically connected and constantly outputs low-voltage electric energy to the first sensor and the second sensor for driving. The portable water quality sensing device as described in item 1 of the patent scope, wherein the first sensor of the sensing module is a temperature sensor, a conductivity sensor, a pH sensor, a dissolved oxygen Sensors, salinity sensors, total dissolved solids sensors or redox potential sensors. The portable water quality sensing device as described in item 1 of the patent application scope, wherein the second sensor of the sensing module is a turbidity sensor, a suspended solids sensor or a chlorophyll a sensor. The portable water quality sensing device as described in item 1 of the patent application scope, wherein the processing module is electrically connected to the at least one first sensor and the at least one second sensor for analysis A signal processing unit for digitally sensing the value, and it is powered on the side of the signal processing unit There is a man-machine interface for operating or setting the processing module, and a storage unit for storing digital sensing numerical data. As described in item 1 of the patent application, the portable water quality sensing device, wherein the power supply of the power module is a lithium battery, accumulator or rechargeable battery. The portable water quality sensing device as described in item 1 of the patent application scope, wherein the power supply side of the power supply module is electrically connected to form an electrical connection with a preset power supply and charge the power supply Charging interface. The portable water quality sensing device as described in item 1 of the patent application scope, wherein the power supply is electrically connected to a power detection module for detecting the remaining power of the power supply and sending out a power-off signal when the power is insufficient.

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