TWM579717U - Detection device - Google Patents

Abstract

A detecting device includes: a liquid level detecting unit and a processing unit. The liquid level detecting unit includes a waveguide, an acoustic wave sensing component and an output interface. The waveguide is provided with a water inlet to introduce a liquid to be tested; the acoustic sensing component is disposed inside the waveguide to sense the liquid level of the liquid to be tested and generate an electronic signal; and the output interface is electrically connected to the acoustic sensing component. The processing unit is detachably connected to the liquid level detecting unit, including: an input interface, a sensor, a wireless communication module, and a controller. The input interface is electrically connected to the output interface; the sensor is electrically connected to the input interface for processing the electronic signal to obtain the liquid level information of the liquid to be tested in the waveguide; the controller is electrically connected to the sensor and the wireless communication module, It is used to receive liquid level information and control the wireless communication module to wirelessly transmit liquid level information.

Description

Detection device

The present disclosure relates to a detection device, and more particularly to a device for detecting a liquid level.

In recent years, due to the extreme weather of the earth and the frequent disasters around the world, the concept of “smart city” has gradually received attention. Among them, the prevention of floods is mainly based on the use of liquid level meters. According to whether the sensing element is in contact with the liquid to be tested, the level gauge can be divided into two types: contact type and non-contact type. Contact type liquid level gauges include: capacitive liquid level gauges, float measuring devices, etc., which have the common point that the sensing elements are in contact with the liquid to be measured. Because the sensing elements are immersed in the liquid for a long time, the liquid is highly polluted or corrosive. The occurrence of wear and even accelerated aging may also result in a large error value due to contamination or sticking by the liquid. Compared with contact type liquid level gauges, non-contact type liquid level gauges (such as ultrasonic level gauges, microwave radar level gauges, ray level gauges, etc.) are not affected by the liquid to be tested, so their application range is wider and available. Special occasions that cannot be used in contact type liquid level gauges, such as media with high viscosity, high corrosivity, serious pollution, and easy to crystallize. However, the existing non-contact type liquid level gauge is susceptible to interference from foreign matter (such as garbage, animals, insects, plants, etc.), and measurement errors or misjudgments still occur.

Regardless of whether it is a contact type liquid level gauge or a non-contact type liquid level gauge, conventional techniques have problems such as low measurement accuracy, large error value, inconvenient installation and maintenance. Therefore, it is necessary to propose a detecting device to overcome the problems of the above-mentioned prior art.

The present disclosure provides a detection device that solves the problems in the prior art.

The detecting device of the present disclosure includes: a liquid level detecting unit and a processing unit. The liquid level detecting unit comprises: a waveguide tube, a water inlet is provided to introduce a liquid to be tested; and an acoustic wave sensing component is disposed inside the waveguide tube for sensing the liquid level of the liquid to be tested and Generating a corresponding electronic signal; an output interface electrically connected to the acoustic wave sensing element. The processing unit is detachably connected to the liquid level detecting unit, and includes: at least one input interface electrically connected to the output interface; and a sensor electrically connected to the at least one input interface for processing the electronic signal Obtaining liquid level information of the liquid to be tested in the waveguide; a wireless communication module; a controller electrically connected to the sensor and the wireless communication module for receiving the liquid level output from the sensor Information, and is used to control the wireless communication module to wirelessly transmit the liquid level information.

In an embodiment, the processing unit further includes an antenna electrically connected to the wireless communication module.

In one embodiment, the processing unit further includes a memory module electrically coupled to the controller and configured to store the liquid level information.

In an embodiment, the memory module includes a memory card.

In an embodiment, the processing unit further includes a battery module electrically connected to the controller and configured to supply power to the controller.

In one embodiment, the battery module includes at least one of a rechargeable battery and a disposable battery.

In an embodiment, the processing unit further includes a network connection interface electrically connected to the controller.

In one embodiment, the network connection interface is one of an RS-485 interface, an RS-232 interface, and a 10/100 BASE-TX interface.

In an embodiment, the processing unit further includes a power connection interface electrically connected to the controller.

In an embodiment, the detecting device further includes an external connection cable, one end of the external connection cable is connected to the input interface, and the other end of the external connection cable is connected to The output interface.

In an embodiment, the waveguide further has a screen disposed at the water inlet.

In an embodiment, the waveguide is a metal tube.

In an embodiment, the acoustic sensing element is an ultrasonic sensing element.

In one embodiment, the acoustic wave sensing element is disposed at a top end of the waveguide, and the water inlet is disposed at a bottom end of the waveguide.

In one embodiment, the output interface is a male rotary connector, and the at least one input interface is a female rotary connector.

In an embodiment, the communication protocol supported by the wireless communication module includes at least one of 4G, LoRa, NB-IoT, and a combination thereof.

1‧‧‧Detection device

10‧‧‧Level detection unit

20‧‧‧Processing unit

30‧‧‧Liquid to be tested

100‧‧‧guide tube

102‧‧‧ Inlet

104‧‧‧Sonic sensing components

106‧‧‧Output interface

200‧‧‧ input interface

202‧‧‧ sensor

204‧‧‧Wireless communication module

206‧‧‧ battery module

208‧‧‧Memory Module

210‧‧‧ Controller

212‧‧‧Antenna

214‧‧‧Network connection interface

216‧‧‧Power connection interface

218‧‧‧External connection cable

1 is a block diagram of a detecting device in a separated state according to an embodiment of the present disclosure.

Fig. 2 is a block diagram showing the detecting device of Fig. 1 in a combined state.

FIG. 3 is a block diagram showing a detecting device according to another embodiment of the present disclosure.

1 is a block diagram of a detecting device in a separated state according to an embodiment of the present disclosure. Fig. 2 is a block diagram showing the detecting device of Fig. 1 in a combined state. As shown in FIG. 1, the detecting device 1 includes a liquid level detecting unit 10 and a processing unit 20.

The liquid level detecting unit 10 includes a waveguide 100, an acoustic wave sensing element 104, and an output interface 106. The waveguide 100 is provided with a water inlet 102 for introducing a liquid 30 to be tested (such as water), and the waveguide 100 further has a screen (not shown) disposed at the water inlet 102, so that debris can be removed from the waveguide. In 100, the detection accuracy of the liquid level detecting unit 10 is avoided. In some embodiments, The waveguide 100 can be a metal tube having a good waveguide effect, and the water inlet 102 is provided at the bottom end of the waveguide 100. It should be noted that the waveguide 100 used in the present disclosure is not limited to a metal tube, and may be made of other materials having a good waveguide effect.

The acoustic wave sensing component 104 is disposed inside the waveguide 100 for sensing the liquid level of the liquid 30 to be tested and generating a corresponding electronic signal. In some embodiments, the acoustic wave sensing component 104 is an ultrasonic sensing component and the acoustic wave sensing component 104 is disposed at the top end of the waveguide 100.

The output interface 106 is electrically connected to the acoustic wave sensing component 104, and the output interface 106 is specifically a male rotary connector.

As shown in FIG. 1 and FIG. 2 , the processing unit 20 is detachably connected to the liquid level detecting unit 10 . The processing unit 20 includes at least one input interface 200 , a sensor 202 , a wireless communication module 204 , a battery module 206 , and a memory . Module 208 and controller 210.

At least one input interface 200 is electrically connected to the output interface 106. Specifically, the input interface 200 is a female rotary connector corresponding to the male rotary connector of the output interface 106.

The sensor 202 is electrically connected to the at least one input interface 200 for processing the electronic signal generated by the acoustic wave sensing component 104 to obtain the liquid level information of the liquid 30 to be tested in the waveguide 100.

In some embodiments, the communication protocol supported by the wireless communication module 204 includes at least one of 4G, LoRa, NB-IoT, and a combination thereof. Therefore, when one of the communication networks is congested or failed, the wireless communication module Group 204 automatically switches to another normally functioning communication network with dual-frequency backup. Due to the setting of the wireless communication module 204, the detecting device 1 also has the function of real-time data transmission.

The controller 210 is electrically connected to the sensor 202 and the wireless communication module 204 for receiving the liquid level information outputted from the sensor 202, and is configured to control the wireless communication module 204 to wirelessly transmit the liquid level information.

The processing unit 20 further includes a battery module 206 electrically connected to the controller 210 and configured to supply power to the controller 210. In some embodiments, the battery module 206 includes at least one rechargeable battery (such as a lithium iron phosphate battery) and a disposable battery (such as a lithium sulfuric acid battery). One of them.

The processing unit 20 further includes a memory module 208. The memory module 208 is electrically connected to the controller 210 and configured to store the liquid level information. In some embodiments, the memory module 208 includes a memory card, so that when the data is lost, the memory module 208 can be extracted at any time, and then the data is added to a terminal device (such as a notebook computer).

The processing unit 20 further includes an antenna 212, a network connection interface 214, and a power connection interface 216. The antenna 212 is electrically connected to the wireless communication module 204 for transmitting the signal of the wireless communication module 204 (for example, the liquid level information mentioned above) to the outside, or transmitting the wireless signal received from the outside to the wireless communication module. 204. The network connection interface 214 is electrically connected to the controller 210, and the network connection interface 214 is a wired network connection interface, and specifically may be one of an RS-485 interface, an RS-232 interface, and a 10/100 BASE-TX interface. The network connection interface 214 can perform wired data transmission with an external device. The power connection interface 216 is electrically connected to the controller 210 for providing power required for the operation of the processing unit 20. When the battery module 206 includes a rechargeable battery, the power connection interface 216 can charge the battery module 206.

Referring to FIG. 2, when the acoustic wave sensing element 104 is an ultrasonic sensing element and the waveguide 100 is a metal tube, the sound wave emitted by the acoustic wave sensing element 104 is in the waveguide 100 similar to that in FIG. The illustrated path travels, and when the acoustic wave contacts the liquid level of the liquid 30 to be tested, it is reflected back to the acoustic wave sensing element 104. The above-mentioned sound wave conduction process can improve the accuracy and correctness of the measurement because it is not interfered by the outside or the sundries.

FIG. 3 is a block diagram showing a detecting device according to another embodiment of the present disclosure. The difference between the third embodiment and the first and second embodiments is that the detecting device 1 further includes an external connection cable 218. One end of the external connection cable 218 is connected to the input interface 200, and the other end of the external connection cable 218 is connected to the output interface. 106. The connection of the external connection line 218 allows the liquid level detecting unit 10 and the processing unit 20 to be separated from each other without being restricted by the geographical environment, so as to achieve flexibility and convenience of layout.

In summary, the present disclosure is characterized in that the liquid level detecting unit used in the detecting device is a non-contact liquid level meter. Compared with the contact level meter of the prior art, the present disclosure has The advantage of high measurement accuracy. Another feature of the present disclosure is that the liquid level detecting unit and the processing unit of the detecting device are both easy to install and expandable. In addition, the liquid level detecting unit and the processing unit can also be separately arranged, and are not limited to the geographical environment, and have the flexibility and convenience of layout.

The present disclosure has been disclosed in the above preferred embodiments. However, it is not intended to limit the scope of the disclosure, and various modifications and changes can be made without departing from the spirit and scope of the disclosure. Therefore, the scope of protection of this disclosure is subject to the definition of the scope of the patent application.

Claims (16)

A detecting device comprises: a liquid level detecting unit comprising: a waveguide, a water inlet for introducing a liquid to be tested; and an acoustic sensing component disposed inside the waveguide for sensing a liquid level of the liquid to be tested and a corresponding electronic signal; and an output interface electrically connected to the sound wave sensing element; and a processing unit detachably connected to the liquid level detecting unit, including: at least An input interface electrically connected to the output interface; a sensor electrically connected to the at least one input interface for processing the electronic signal to obtain liquid level information of the liquid to be tested in the waveguide; a communication module; and a controller electrically connected to the sensor and the wireless communication module for receiving the liquid level information outputted by the sensor, and for controlling the wireless communication module to wirelessly transmit the liquid level information . The detecting device of claim 1, wherein the processing unit further comprises an antenna electrically connected to the wireless communication module. The detecting device of claim 1, wherein the processing unit further comprises a memory module electrically connected to the controller and configured to store the liquid level information. The detecting device of claim 3, wherein the memory module comprises a memory card. The detecting device of claim 1, wherein the processing unit further comprises a battery module electrically connected to the controller and configured to supply power to the controller. The detecting device of claim 5, wherein the battery module comprises at least one of a rechargeable battery and a disposable battery. The detecting device of claim 1, wherein the processing unit further comprises a network connection interface, the network connection interface being electrically connected to the controller. The detecting device of claim 7, wherein the network connection interface is one of an RS-485 interface, an RS-232 interface, and a 10/100 BASE-TX interface. The detecting device of claim 1, wherein the processing unit further comprises a power connection interface, the power connection interface being electrically connected to the controller. The detecting device of claim 1, further comprising an external connecting cable, one end of the external connecting cable is connected to the input interface, and the other end of the external connecting cable is connected to the output interface. The detecting device of claim 1, wherein the waveguide further has a filter disposed at the water inlet. The detecting device of claim 1, wherein the waveguide is a metal tube. The detecting device of claim 1, wherein the acoustic sensing element is an ultrasonic sensing element. The detecting device of claim 13, wherein the acoustic sensing element is disposed at a top end of the waveguide, and the water inlet is disposed at a bottom end of the waveguide. The detecting device of claim 1, wherein the output interface is a male rotary connector, and the at least one input interface is a female rotary connector. The detecting device of claim 1, wherein the communication protocol supported by the wireless communication module comprises at least one of 4G, LoRa, NB-IoT, and a combination thereof.