Water immersion information acquisition circuit and system

Abstract

The embodiment of the application provides a kind of water immersion information acquisition circuit and system, belong to sensor data acquisition and processing technical field, water immersion information acquisition circuit includes: sensor;Metallic wire.The sensor includes RFID tag, and the RFID tag includes RFID chip, sensing circuit, encapsulation shell.The RFID chip at least contains four pins, wherein two pins are connected with the two stages of sensing circuit, and the other two pins are connected with metallic wire respectively.The metallic wire includes first metallic wire and second metallic wire, and the first metallic wire is connected with the voltage output end of the RFID tag, and the second metallic wire is connected with the voltage input end of the RFID tag.The technical scheme of the application can collect the information whether water enters the sealed equipment inside in water immersion scene based on passive technology.

Description

Technical Field

[0001] This application relates to the field of sensor data acquisition and processing technology, and in particular to a circuit and system for acquiring information about immersion in water. Background Technology

[0002] Because active immersion data acquisition technology requires continuous power to the device, and these devices typically consist of multiple components, they also require significant space. Therefore, in some applications, due to economic considerations, necessity, and space constraints, active immersion data acquisition technology cannot be used for immersion information collection. Thus, a solution needs to be found in passive technologies.

[0003] However, some passive moisture sensing devices may not function properly in immersion scenarios, making them unsuitable for collecting immersion information. Utility Model Content

[0004] The main objective of this application is to propose a water immersion information acquisition circuit and system, which aims to acquire information on whether water has entered the interior of a sealed device under water immersion scenarios using passive technology.

[0005] To achieve the above objectives, a first aspect of this application provides a water immersion information acquisition circuit, the water immersion information acquisition circuit comprising: sensor; The metal wires include a first metal wire and a second metal wire, wherein the first metal wire is connected to the voltage output terminal of the sensor, and the second metal wire is connected to the voltage input terminal of the sensor.

[0006] In some embodiments, the immersion information acquisition circuit further includes: The terminal block includes a first channel and a second channel, the first channel and the second channel being isolated and insulated from each other; the first metal wire is connected to the voltage output terminal of the sensor through the first channel, and the second metal wire is connected to the voltage input terminal of the sensor through the second channel.

[0007] In some embodiments, the immersion information acquisition circuit further includes: A micro voltage sensing device is provided, and the second metal wire is connected to the voltage input terminal of the sensor through the micro voltage sensing device.

[0008] In some embodiments, the sensor includes: The radio frequency identification (RFID) tag includes an RFID chip, a sensing circuit, and a package housing. The RFID chip is connected to two stages of the sensing circuit via a first pin and a second pin, respectively. The RFID chip is connected to a first metal wire via a third pin as a voltage output terminal, and to a second metal wire via a fourth pin as a voltage input terminal. The RFID chip and the sensing circuit are disposed inside the package housing.

[0009] To achieve the above objectives, a second aspect of the present application provides a water immersion information acquisition system, which includes the water immersion information acquisition circuit described in the first aspect.

[0010] In some embodiments, the immersion information acquisition system further includes: The control terminal sends instructions to the sensors in the immersion information acquisition circuit to collect immersion information, and receives the pass information or break information returned by the sensors.

[0011] In some embodiments, the control terminal includes: The control terminal uses the radio frequency identification (RFID) read / write module to interact with the sensor and to emit electromagnetic energy to the sensor.

[0012] In some embodiments, the immersion information acquisition system further includes: A data storage server that interacts with the control terminal.

[0013] To achieve the above objectives, a third aspect of this application provides an electronic device, which includes the water immersion information acquisition circuit described in the first aspect.

[0014] The water immersion information acquisition circuit and system proposed in this application are based on connecting a first metal wire in the water immersion information acquisition circuit to the voltage output terminal of a sensor, and connecting a second metal wire to the voltage input terminal of the sensor. When the water immersion information acquisition circuit is working, if there is water between the first and second metal wires, since water in the natural environment usually has good conductivity, it can conduct the first and second metal wires, and the voltage input terminal of the sensor can receive voltage. Conversely, if there is no water between the first and second metal wires, the first and second metal wires will not conduct, and the voltage input terminal of the sensor will not receive voltage. Therefore, by combining whether the sensor can receive voltage, it is possible to accurately determine whether the first and second metal wires are conductive, and thus acquire the corresponding information on whether the device is immersed in water.

[0015] Thus, by connecting the first metal wire to the voltage output terminal of the sensor and the second metal wire to the voltage input terminal of the sensor, the wire portion of the water immersion information acquisition circuit is separated from the sensor body. This allows for flexible adjustment of the sensor's installation position in practical applications, effectively solving the problem of sensor signals failing to penetrate water and thus malfunctioning in water immersion scenarios. In other words, the water immersion information acquisition circuit proposed in this application can be used to acquire information on whether water has entered the interior of sealed equipment in water immersion scenarios.

[0016] Furthermore, since the wire portion of the water immersion information acquisition circuit proposed in this application embodiment uses metal wires, it only becomes conductive after immersion in water. Thus, compared to the passive water immersion information acquisition method using a water-absorbing conductive salt film in related technologies, the water immersion information acquisition circuit proposed in this application embodiment can effectively solve the problem of falsely acquiring water immersion information due to air humidity, improving reliability. Moreover, due to the inherent stability and ease of preservation of metal, the water immersion information acquisition circuit provided in this application embodiment can be used long-term and repeatedly, further ensuring reliability. Attached Figure Description

[0017] Figure 1 A schematic diagram of the device structure involved in the active immersion water collection technology mode; Figure 2 This is a schematic diagram of the device structure involved in the RFID-based water immersion information collection technology mode; Figure 3 This is a schematic diagram of the structure of the water immersion information acquisition circuit provided in some embodiments of this application; Figure 4 A schematic diagram of the structure of the water immersion information acquisition circuit provided in the embodiments of this application in some other embodiments; Figure 5 A schematic diagram of the structure of the water immersion information acquisition circuit provided in the embodiments of this application in some other embodiments; Figure 6 A schematic diagram of the structure of the water immersion information acquisition circuit provided in the embodiments of this application in some other embodiments; Figure 7 A schematic diagram of the structure of the water immersion information acquisition circuit provided in the embodiments of this application in some other embodiments; Figure 8 A schematic diagram of the structure of the RFID chip involved in some embodiments of the water immersion information acquisition circuit provided in this application; Figure 9 Schematic diagrams of the immersion information acquisition system provided in some embodiments of this application; Figure 10 Schematic diagrams of the immersion information acquisition system provided in the embodiments of this application in other embodiments; Figure 11 A flowchart illustrating the steps of the operation method of the immersion information acquisition system provided in the embodiments of this application in some embodiments; Figure 12 The operation method of the immersion information collection system provided in the embodiments of this application includes system flow diagrams in some embodiments; Figure 13 This is a schematic diagram of the hardware structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0019] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0021] First, the technical background involved in the embodiments of this application will be explained.

[0022] I. Active technology.

[0023] Active technology refers to the technical approach of using active circuits (a circuit design that includes a power supply). In today's moisture sensing information acquisition technology, whether in open or closed environments, active immersion water acquisition technology based on active technology is very mature, which makes its application very wide, covering many fields such as homes, industries, and medical care.

[0024] like Figure 1As shown, while active immersion data acquisition technology can achieve real-time monitoring and the data is usually very accurate, it requires a continuous power supply. Furthermore, facilities using active immersion data acquisition technology are typically a combination of multiple devices, requiring considerable space. Therefore, in some application areas, considering economics, necessity, and space limitations, it may be impossible to install the corresponding devices or meet the requirement of continuous power supply. For example, some currently used sealed boxes (such as junction boxes and terminal boxes in optical communication, characterized by their need for sealing to meet certain waterproof requirements) are small in size, often with limited internal installation space. In practical applications, they also require overhead or deep burial. More importantly, pure fiber optic cable relay or terminal devices in optical communication typically do not establish a power link, and these devices are often difficult to access after installation. This leads to difficulties in battery replacement or maintenance, even when using storage batteries for power.

[0025] Therefore, finding solutions from passive technologies and developing passive immersion information acquisition schemes has become an urgent technical problem to be solved in the field.

[0026] II. Passive technology.

[0027] As the name suggests, passive technology refers to the technical approach of using passive circuits (a circuit design that does not include a power supply). Radio Frequency Identification (RFID) technology is a typical example of passive technology. Due to its low power consumption, small size, contactless operation, and low cost, RFID technology has been increasingly adopted in the era of the Internet of Things.

[0028] Among related technologies, some RFID-based water immersion information collection techniques can be used as follows: Figure 2 As shown. Compared to the active immersion data collection technology mentioned above, the RFID-based immersion data collection technology has at least the following significant advantages: 1. Because the operating current of the chips used in RFID technology is extremely low, typically a few milliamps (mA) and as low as a few microamps (μA), the sensing circuit of facilities using this immersion information collection technology can be very simple and miniaturized.

[0029] 2. For example Figure 2As shown, the RFID-based water immersion information collection technology has a simple structure, consisting only of sensors, chips, sensing / communication circuits, readers, and a management platform. In actual use, only RFID tags composed of sensors, chips, and sensing / communication circuits are deployed along the link, and this part is very inexpensive. Therefore, facilities using this water immersion information collection technology are characterized by simple and convenient installation and use, and low cost.

[0030] 3. Since the RFID-based water immersion information collection technology does not require a power supply, it can generate electricity by sensing electromagnetic waves through a simple circuit, thereby activating the circuit and entering the working state. The circuit itself can also act as an antenna for communication, transmitting the data acquired by the sensor. Therefore, facilities using this water immersion information collection technology do not require a separate power supply and can be powered non-contactly. In specific application scenarios, patrol vehicles, drones, etc., can be used to power the facilities and acquire data during patrols.

[0031] The overall concept of the embodiments of this application will be described next.

[0032] In related technologies, some passive moisture sensing information acquisition devices may not work properly in water immersion scenarios, and are therefore unsuitable for water immersion information acquisition.

[0033] For example, patent document CN110110832A discloses a moisture sensor RFID tag and its application system, which consists of an RFID tag with a moisture sensor, a reader, a communication module, and a smart terminal. The moisture sensor includes a dipole antenna, a chip, and a moisture sensor itself. The dipole antenna has an antenna break in its central loop, cutting off the antenna circuit. The moisture sensor is mounted on the antenna break, and the chip is mounted on the dipole antenna. The moisture sensor is a device based on the principle of a water-absorbing conductive salt film, made of water-retaining material and salt particles. When the tag absorbs moisture, the water reacts with the water-absorbing conductive salt film to form a strong electrolytic solution, which enables the circuit to conduct, allowing the RFID tag information to be returned to the reader. This state is defined as the "water present" state. In the "no water" state, the RFID tag is in a non-conductive state, and no information is returned to the reader.

[0034] However, while the aforementioned moisture sensor RFID tags and their application systems can determine the presence or absence of water using passive technology without requiring continuous power, the moisture sensors, based on the principle of a water-absorbing conductive salt film, have their sensing circuit and data acquisition end not separated and both housed on a single tag. This means that in practical applications, radio frequency (RF) signals have difficulty penetrating water. Consequently, when the tag is submerged in water, it is highly likely to malfunction because it cannot receive electromagnetic energy from the reader. Furthermore, in situations where the air humidity is high but the area is not actually submerged, the water-absorbing conductive salt film may absorb moisture from the air and become conductive, leading to misjudgments of a water-containing state. Moreover, the conductive salt film is often made by soaking a water-absorbing film in salt water and then drying it; it is inherently difficult to preserve for long periods and is prone to failure, further reducing product reliability.

[0035] Based on this, this application proposes a water immersion information acquisition circuit and system. The circuit connects a first metal wire to the voltage output terminal of a sensor and a second metal wire to the voltage input terminal of the sensor. When the water immersion information acquisition circuit is operating, if there is water between the first and second metal wires, the water in the natural environment, which typically has good conductivity, will conduct the voltage, allowing the sensor's voltage input terminal to receive voltage. Conversely, if there is no water between the first and second metal wires, the conduction will cease, and the sensor's voltage input terminal will not receive voltage. Therefore, by combining the sensor's ability to receive voltage, the continuity between the first and second metal wires can be accurately determined, thereby acquiring the corresponding information regarding whether the circuit is water-immersed.

[0036] Thus, by connecting the first metal wire to the voltage output terminal of the sensor and the second metal wire to the voltage input terminal of the sensor, the wire portion of the water immersion information acquisition circuit is separated from the sensor body. This allows for flexible adjustment of the sensor's installation position in practical applications, effectively solving the problem of sensor signals failing to penetrate water and thus malfunctioning in water immersion scenarios. In other words, the water immersion information acquisition circuit proposed in this application can be used to acquire information on whether water has entered the interior of sealed equipment in water immersion scenarios.

[0037] Furthermore, since the wire portion of the water immersion information acquisition circuit proposed in this application embodiment uses metal wires, it only becomes conductive after immersion in water. Thus, compared to the passive water immersion information acquisition method using a water-absorbing conductive salt film in related technologies, the water immersion information acquisition circuit proposed in this application embodiment can effectively solve the problem of falsely acquiring water immersion information due to air humidity, improving reliability. Moreover, due to the inherent stability and ease of preservation of metal, the water immersion information acquisition circuit provided in this application embodiment can be used long-term and repeatedly, further ensuring reliability.

[0038] Next, based on the overall concept of the above-described embodiments of this application, specific embodiments of the water immersion information acquisition circuit and system proposed in the embodiments of this application are presented, and each specific embodiment of the water immersion information acquisition circuit proposed in the embodiments of this application is described in detail first.

[0039] It should be noted that in the following description of the specific embodiments of the immersion information acquisition circuit and system proposed in this application, it should be understood that the orientation descriptions, such as up and down, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0040] Furthermore, in the following description, "multiple" refers to two or more. The use of "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of technical features indicated, or their sequential order. Moreover, in the following description, unless otherwise explicitly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine their specific meaning in this application based on the specific content of the technical solution.

[0041] Please refer to Figure 3 , Figure 3 The diagram shows the structure of the water immersion information acquisition circuit provided in some embodiments of this application.

[0042] like Figure 3 As shown, in some embodiments, the immersion information acquisition circuit provided in this application may include: sensor; The metal wires include a first metal wire and a second metal wire, wherein the first metal wire is connected to the voltage output terminal of the sensor, and the second metal wire is connected to the voltage input terminal of the sensor.

[0043] In this embodiment, the water immersion information acquisition circuit may include at least a sensor and metal wires. The metal wires include a first metal wire and a second metal wire. The first metal wire is connected to the voltage output terminal of the sensor, and the second metal wire is connected to the voltage input terminal of the sensor. Thus, as long as the first and second metal wires are conductive, the voltage input terminal of the sensor can receive voltage; conversely, if the first and second metal wires are conductive but not conductive, the voltage input terminal of the sensor will not receive voltage. Therefore, when applying the water immersion information acquisition circuit to determine whether a sealed box is immersed in water, it is only necessary to place the first and second metal wires at points inside the sealed box where water immersion may occur. Since water in the natural environment usually has good conductivity, combined with whether the sensor can receive voltage, it is possible to accurately determine whether the first and second metal wires are conductive, and thus acquire the corresponding water immersion information. That is, if the sensor receives voltage, the first and second metal wires are conductive, thus determining that the sealed box is immersed in water; conversely, if the sensor does not receive voltage, the first and second metal wires are not conductive, thus determining that the sealed box is not immersed in water.

[0044] In some embodiments, the metal wires in the immersion information acquisition circuit are used for wiring inside the sealed box. The wiring is divided into two paths: an outlet and an inlet (the outlet is a first metal wire, and the inlet is a second metal wire), and each is electrically connected to a sensor (the first metal wire is connected to the voltage output terminal of the sensor, and the second metal wire is connected to the voltage input terminal of the sensor). For example, when the sensor is specifically an RFID tag, the first metal wire is electrically connected to the output pin of the RFID chip in the RFID tag, while the second metal wire is electrically connected to the input pin of the RFID chip in the RFID tag.

[0045] In some embodiments, when wiring inside the sealed box, the metal wires cover one or more points inside the box so that the metal wires can still contact the water and conduct even when there is only a small amount of water inside the sealed box.

[0046] Please refer to Figure 4 , Figure 4 The diagram shows the structure of the water immersion information acquisition circuit provided in the embodiments of this application in some other embodiments.

[0047] like Figure 4 As shown, in some embodiments, the immersion information acquisition circuit provided in this application may further include: The terminal block includes a first channel and a second channel, the first channel and the second channel being isolated and insulated from each other; the first metal wire is connected to the voltage output terminal of the sensor through the first channel, and the second metal wire is connected to the voltage input terminal of the sensor through the second channel.

[0048] It should be noted that terminals can also be called wire posts or connectors. In water immersion information acquisition circuits, terminals are used to connect the wires inside and outside the sealed box, while still keeping the box sealed.

[0049] The metal wires in the immersion information acquisition circuit can be connected to the voltage output and voltage input terminals of the sensor through terminals with first and second channels. This way, only one hole needs to be drilled in the sealed box to install the terminal.

[0050] In some embodiments, one end of the terminal block may include a first connection point and a second connection point, while the other end of the terminal block includes a third connection point and a fourth connection point. The first connection point and the third connection point are connected by a metal wire in a first channel, serving as the two ends of the first channel, respectively. The second connection point and the fourth connection point are connected by a metal wire in a second channel, serving as the two ends of the second channel, respectively.

[0051] The first metal wire is connected to the first connection point, the second metal wire is connected to the second connection point, the third connection point is connected to the voltage output terminal of the sensor, and the fourth connection point is connected to the voltage input terminal of the sensor.

[0052] For example, the terminal block is a connector with a sealing ring. The connector chamber includes two channels (a first channel and a second channel), and the metal wires in the channels are mutually isolated and insulated. Each end of the connector has two pins, which are connected by mutually insulated metal wires (metal wires in the first channel and metal wires in the second channel) within the connector chamber. Specifically, PIN1 (first connection point) at one end of the connector is connected to PIN3 (third connection point) at the other end via a metal wire, and PIN2 (second connection point) at one end of the connector is connected to PIN4 (fourth connection point) at the other end via a metal wire. Thus, only one hole needs to be drilled in the sealed box to install the connector. Then, the first and second metal wires inside the sealed box are connected to the two pins (PIN1 and PIN3) at one end of the connector, respectively. The first and second metal wires outside the device are connected at one end to the two pins (PIN2 and PIN4) at the other end of the connector, and at the other end to the sensor.

[0053] In some embodiments, the immersion information acquisition circuit provided in this application may further include: A micro voltage sensing device is provided, and the second metal wire is connected to the voltage input terminal of the sensor through the micro voltage sensing device.

[0054] It should be noted that the micro voltage sensing device can be a micro voltage sensing circuit or a micro voltage sensing component.

[0055] Please refer to Figure 5 , Figure 5 A schematic diagram of the structure of the water immersion information acquisition circuit provided in the embodiments of this application in some other embodiments.

[0056] like Figure 5 As shown, in some embodiments, the immersion information acquisition circuit provided in this application may further include: A micro-voltage sensing device, wherein the micro-voltage sensing device may be disposed at the voltage input terminal of the sensor.

[0057] In other embodiments, in the immersion information acquisition circuit, the micro voltage sensing device can be placed not only near the voltage input terminal of the sensor, but also between the voltage input terminal of the sensor and the second metal wire. That is, the second metal wire is connected to the voltage input terminal of the micro voltage sensor, and then the voltage output terminal of the micro voltage sensor is connected to the voltage input terminal of the sensor.

[0058] Please refer to Figure 6 , Figure 6 A schematic diagram of the structure of the water immersion information acquisition circuit provided in the embodiments of this application in some other embodiments.

[0059] like Figure 6 As shown, in some embodiments, when the second metal wire is connected to the voltage input terminal of the sensor via a terminal block, a micro voltage sensor can also be additionally placed between the voltage input terminal of the sensor and the second terminal block connected to the second metal wire. That is, the second terminal block is connected to the voltage input terminal of the micro voltage sensor, and then the voltage output terminal of the micro voltage sensor is connected to the voltage input terminal of the sensor.

[0060] Considering that the voltage emitted by the sensor through its voltage output terminal may be relatively small, if the first and second metal wires are long, the voltage drop may be too large. This could result in a small voltage being returned to the sensor through the second metal wire when the first and second metal wires are wetted, causing the sensor to fail to respond. To address this, a micro-voltage sensing device can be added near the voltage input terminal of the sensor in the immersion information acquisition circuit. This allows the sensor to detect and respond to the low voltage returned by the second metal wire through the voltage input terminal even when the voltage is small.

[0061] For example, when the sensor is specifically an RFID tag, the voltage emitted by the RFID tag chip through the voltage output terminal is generally 1~2 volts. At this time, if the metal wire is relatively long, the voltage drop is too large, and the voltage that finally returns to the RFID tag chip may only be at the level of millivolts mV or even microvolts μV. However, after adding a micro-voltage sensing circuit or component near the input terminal (voltage input terminal) of the RFID tag chip, the RFID tag chip can still sense the voltage returned by the metal wire when it is conducting and respond accordingly, thereby determining that the sealed box in which the metal wire is laid has been immersed in water.

[0062] Please refer to Figure 7 , Figure 7 A schematic diagram of the structure of the water immersion information acquisition circuit provided in the embodiments of this application in some other embodiments.

[0063] like Figure 7 As shown, in some embodiments, the sensor in the immersion information acquisition circuit may include: The radio frequency identification (RFID) tag includes an RFID chip (Integrated Circuit, IC), a sensing circuit, and a package housing. The RFID chip is connected to two stages of the sensing circuit via a first pin and a second pin, respectively. The RFID chip is connected to a first metal wire via a third pin as a voltage output terminal, and to a second metal wire via a fourth pin as a voltage input terminal. The RFID chip and the sensing circuit are disposed inside the package housing.

[0064] In the immersion information acquisition circuit, the sensing circuit of the RFID tag can convert the electromagnetic energy emitted by the external facility to power the entire immersion information acquisition circuit. That is, the electromagnetic energy is converted and output through the voltage output terminal, and the first metal wire and the second metal wire receive the voltage from the voltage input terminal when they are conducting.

[0065] In some embodiments, in the immersion information acquisition circuit, the sensing circuit of the RFID tag can also act as an antenna to communicate with the external facility in order to obtain tag information while converting the electromagnetic energy emitted by the external facility to power the entire immersion information acquisition circuit.

[0066] It should be noted that the external facility communicating with the induction circuit and the external facility emitting electromagnetic energy can be the same facility / equipment / device. Alternatively, the external facility communicating with the induction circuit can be a separate facility / equipment / device that communicates only with the induction circuit, independent of the external facility emitting electromagnetic energy.

[0067] In the water immersion information acquisition circuit, the RFID chip of the RFID tag can be used to store tag ID information and control the water immersion information acquisition circuit to collect water immersion data.

[0068] like Figure 8 As shown, the RFID chip of the sensor in the water immersion information acquisition circuit is connected to the two stages of the sensing circuit through pin 1 and pin 8, respectively. Thus, the reader control signal (used to control the water immersion information acquisition circuit to acquire water immersion data) is transmitted to the RFID chip through these two pins. Furthermore, the RFID chip is also connected to the first metal wire via pin 2 as a voltage output terminal, and to the second metal wire via pin 3 as a voltage input terminal. When the water immersion information acquisition circuit acquires water immersion data, it outputs voltage from the voltage output terminal through the RFID chip. Then, it monitors whether voltage is received from the voltage input terminal. If voltage is received, it confirms that the first and second metal wires are conducting, thereby acquiring water immersion information to indicate that water immersion has occurred inside the sealed box where the first and second metal wires are internally located.

[0069] In the water immersion information acquisition circuit, the sensing circuit and RFID chip of the RFID tag are both located inside the outer protective layer to avoid external wear.

[0070] In this embodiment, the water immersion information acquisition circuit connects a first metal wire to the voltage output terminal of the RFID chip in the RFID tag, and a second metal wire to the voltage input terminal of the RFID chip in the RFID tag. Thus, when the water immersion information acquisition circuit is operating, if there is water between the first and second metal wires, the water in the natural environment, which typically has good conductivity, will conduct the first and second metal wires, allowing the RFID chip's voltage input terminal to receive voltage. Conversely, if there is no water between the first and second metal wires, the conduction will cease, and the RFID chip's voltage input terminal will not receive voltage. Therefore, by combining whether the RFID chip can receive voltage, it is possible to accurately determine whether the first and second metal wires are conducting, thereby confirming whether the device has been immersed in water.

[0071] Thus, this embodiment of the application separates the wire portion of the water immersion information acquisition circuit from the RFID tag body by connecting the first metal wire to the voltage output terminal of the RFID chip in the RFID tag and the second metal wire to the voltage input terminal of the RFID chip in the RFID tag. This allows for flexible adjustment of the RFID tag's installation position in practical applications, effectively solving the problem of RFID signals failing to penetrate water and thus malfunctioning in water immersion scenarios. In other words, the water immersion information acquisition circuit proposed in this embodiment can be used to collect information on whether water has entered the interior of sealed equipment in water immersion scenarios.

[0072] Furthermore, since the wire portion of the water immersion information acquisition circuit proposed in this application embodiment uses metal wires, it only becomes conductive after immersion in water. Thus, compared to the passive water immersion information acquisition method using a water-absorbing conductive salt film in related technologies, the water immersion information acquisition circuit proposed in this application embodiment can effectively solve the problem of falsely acquiring water immersion information due to air humidity, improving reliability. Moreover, due to the inherent stability and ease of preservation of metal, the water immersion information acquisition circuit provided in this application embodiment can be used long-term and repeatedly, further ensuring reliability.

[0073] Furthermore, in this embodiment, by connecting the first metal wire to the voltage output terminal of the RFID chip in the RFID tag and the second metal wire to the voltage input terminal of the RFID chip in the RFID tag, the wire portion of the water immersion information acquisition circuit is separated from the RFID tag body. Therefore, compared to the aforementioned method where the circuit is made conductive by absorbing water through a water-absorbing conductive salt film, and the RFID tag forms a loop to read water immersion information, this embodiment, by separating the metal wire from the sensor, can still normally acquire water immersion information even when the metal wire is not conductive. That is, when the sensor in the water immersion information acquisition circuit is an RFID tag, because the metal wire is separated from the RFID tag, the tag information can still be read normally even when the metal wire is not conductive, and thus water immersion information can be acquired based on the tag information.

[0074] Furthermore, in this embodiment, since terminal blocks can be used to electrically connect the metal wires to the RFID tags, it achieves the advantages of flexible wiring inside and outside the sealed box while maintaining the box's sealing characteristics. It also effectively solves the problem that boxes containing magnetic materials may shield RFID signals. Next, various specific embodiments of the water immersion information collection system provided in this application will be presented.

[0075] The water immersion information acquisition system provided in this application includes at least the aforementioned water immersion information acquisition circuit. By employing this circuit, in scenarios involving water immersion information acquisition of a sealed box, the system can accurately determine whether the first and second metal wires installed inside the sealed box are conductive due to the presence of water inside the box, by combining the sensor's ability to receive voltage. This allows for the acquisition of corresponding water immersion information to indicate whether the sealed box has experienced water immersion.

[0076] Please see Figure 9 , Figure 9 The following are schematic diagrams of the immersion information acquisition system provided in some embodiments of this application.

[0077] like Figure 9 As shown, in some embodiments, the immersion information collection system provided in this application may further include: The control terminal sends instructions to the sensors in the immersion information acquisition circuit to collect immersion information, and receives the pass information or break information returned by the sensors.

[0078] In the water immersion information acquisition system, the control terminal interacts with the sensors in the water immersion information acquisition circuit. By sending a water immersion information acquisition command to the sensor, the control terminal controls the water immersion information acquisition circuit to start acquiring water immersion information. After acquiring the path information or open circuit information indicating whether the sealed box (which contains the metal wires of the water immersion information acquisition circuit) has been flooded, the water immersion information acquisition circuit also reports the water immersion information to the control terminal through the sensor. In this way, the control terminal can receive the path information or open circuit information returned by the sensor in response to the water immersion information acquisition command.

[0079] In some embodiments, the control terminal of the immersion information acquisition system may include: The control terminal uses the radio frequency identification (RFID) read / write module to interact with the sensor and to emit electromagnetic energy to the sensor.

[0080] When the sensor in the immersion information acquisition circuit is an RFID tag, the control terminal in the immersion information acquisition system can interact with the RFID tag through the RFID reader / writer module. By receiving the tag ID and continuity or disconnection information returned by the RFID tag in response to the immersion information acquisition command, the control terminal can confirm whether the metal wires inside the sealed box are conductive, thus determining whether the sealed box has been immersed in water. Furthermore, the control terminal can also provide electromagnetic energy to the RFID tag in the immersion information acquisition circuit through the RFID reader / writer module.

[0081] In some embodiments, the control terminal of the immersion information acquisition system may further include: The control software application (APP) and operation screen are specifically used to control the power supply to the sensors in the water immersion information acquisition circuit, and to control the transmission of water immersion information quality to the sensors to confirm whether the sealed box has been immersed in water.

[0082] In some embodiments, the control terminal of the immersion information acquisition system may further include: Communication module.

[0083] It should be noted that the communication module can use wireless communication and / or wired communication methods.

[0084] In some embodiments, the communication module can interact with the server of the terminal device to upload or download RFID tags and related information. This related information includes, but is not limited to, whether there is water in the sealed box, the location information of the sealed box, and the manufacturer's specifications and model of the sealed box.

[0085] In some embodiments, the information uploaded by the communication module to the server can be configured via an app.

[0086] In some embodiments, the control terminal of the immersion information acquisition system may further include: The battery powers the water immersion information acquisition circuit and the control terminal.

[0087] Please refer to Figure 10 , Figure 10 The following are schematic diagrams of the structure of the water immersion information acquisition system provided in the embodiments of this application in other embodiments.

[0088] like Figure 10 As shown, in some embodiments, the immersion information collection system provided in this application may further include: A data storage server that interacts with the control terminal.

[0089] In the flood information collection system, data exchange occurs between the data storage server and the control terminal. Thus, terminal devices can upload or download RFID tags and related information to the data storage server via their communication modules.

[0090] Next, specific embodiments of the operation method of the immersion information collection system provided in this application will be presented.

[0091] Please refer to Figure 11 , Figure 11The following are schematic flowcharts illustrating the steps of the operation method of the immersion information collection system provided in the embodiments of this application in some embodiments.

[0092] It should be understood that, although Figure 11 The figure shows the execution order of some method steps, but based on different design needs of actual applications, the operation method of the immersion information acquisition system provided in this application embodiment can of course adopt a different execution order of method steps than that shown in the figure. That is, Figure 1 The order of the method steps shown does not constitute a limitation on the execution logic order of the operation method of the immersion information acquisition system provided in the embodiments of this application. Any other order based on... Figure 11 Reasonable changes to the sequence of steps shown should be included within the protection scope of the operation method of the immersion information collection system provided in the embodiments of this application.

[0093] like Figure 11 As shown, in some embodiments, the operation method of the immersion information collection system provided in this application may include the following steps S1101 and S1102.

[0094] Step S1101: Send a command to the sensor in the immersion information acquisition circuit to acquire immersion information; wherein, in response to the command to acquire immersion information, the sensor outputs a voltage from the voltage output terminal to the first metal wire; Step S1102: Receive immersion information returned by the sensor; wherein, when the sensor receives voltage from the voltage input terminal, it returns information indicating that there is water between the first metal wire and the second metal wire; when the sensor does not receive voltage from the voltage input terminal, it returns information indicating that there is no water between the first metal wire and the second metal wire.

[0095] In steps S1101 and S1102 of this embodiment, during the operation of the immersion information acquisition system, a command to acquire immersion information is sent to the sensor in the immersion information acquisition circuit. The sensor, in response to the immersion information acquisition quality control, initiates the acquisition of immersion information, i.e., it begins to output voltage from the voltage output terminal to the first metal wire. Subsequently, if there is water between the first and second metal wires, thus creating a continuity, the sensor receives voltage at the voltage input terminal and returns information indicating a flow of water between the first and second metal wires. Conversely, if there is no water between the first and second metal wires and no continuity, the sensor cannot receive voltage at the voltage input terminal and returns information indicating a break in the circuit, indicating no water between the first and second metal wires.

[0096] In steps S1101 and S1102 of this embodiment, during the operation of the immersion information acquisition system, a command to acquire immersion information is sent to the sensor in the immersion information acquisition circuit. The sensor, in response to the immersion information acquisition quality control, initiates the acquisition of immersion information, i.e., it begins to output voltage from the voltage output terminal to the first metal wire. Subsequently, if the sensor has water between the first and second metal wires, thus creating a connection, it can receive voltage at the voltage input terminal and return immersion information indicating the presence of water between the first and second metal wires. Conversely, if the sensor does not have water between the first and second metal wires and is not creating a connection, it cannot receive voltage at the voltage input terminal and thus returns immersion information indicating the absence of water between the first and second metal wires.

[0097] Thus, the water immersion information acquisition system can accurately determine whether the first and second metal wires laid inside the sealed box are conductive due to the presence of water inside the box by combining the sensor in the water immersion information acquisition circuit with whether the sensor in the water immersion information acquisition circuit can receive voltage in the scenario of water immersion information acquisition for the sealed box. In this way, the corresponding water immersion information can be collected to indicate whether the sealed box has been immersed in water.

[0098] In some embodiments, where the immersion information acquisition system further includes a control terminal and the sensor in the immersion information acquisition circuit includes a sensing circuit, the step S1101 above, "issuing a command to the sensor in the immersion information acquisition circuit to acquire immersion information," may include the following steps: The control terminal sends electromagnetic energy to the sensing circuit and simultaneously interacts with the sensing circuit to issue a command to the sensing circuit to collect immersion information.

[0099] In the water immersion information acquisition system, the control terminal interacts with the FRID sensor tag in the water immersion information acquisition circuit. By sending a water immersion information acquisition command to the sensing circuit in the FRID tag, the control terminal controls the water immersion information acquisition circuit to start collecting water immersion information. After collecting water immersion information indicating whether water immersion has occurred in the sealed box (which has metal wires inside the water immersion information acquisition circuit), the water immersion information acquisition circuit also reports the water immersion information to the control terminal through the sensing circuit in the FRID tag. In this way, the control terminal can receive the water immersion information returned by the FRID tag in response to the water immersion information acquisition command.

[0100] In some embodiments, the control terminal of the immersion information acquisition system can interact with the sensing circuit in the RFID tag through the RFID read / write module. By receiving the tag ID and immersion information returned by the RFID tag in response to the immersion information acquisition command, it can confirm whether the metal wires inside the sealed box are conductive, thereby determining whether the sealed box has been immersed in water. Furthermore, the control terminal can also provide electromagnetic energy to the sensing circuit of the RFID tag in the immersion information acquisition circuit through the RFID read / write module.

[0101] For example, please refer to Figure 12 , Figure 12 The operation method of the immersion information collection system provided in the embodiments of this application includes system flow diagrams in some embodiments; like Figure 12 As shown, in the water immersion information acquisition system provided in this application embodiment, the sensor in the water immersion information acquisition circuit is an RFID tag, the control terminal is a power supply and control terminal that can both send electromagnetic energy to the sensing circuit in the RFID tag to power the water immersion information acquisition circuit and interact with the sensing circuit in the RFID tag to control the operation of the water immersion information acquisition circuit, and the data storage server is specifically a data storage terminal.

[0102] Based on this, during operation, the water immersion information collection system first sends an ID confirmation command to the RFID tag from the power supply and control terminal. The RFID tag responds to this command by replying with its ID identity to the power supply and control terminal. Then, the power supply and control terminal sends a water immersion information collection command to the RFID tag. The RFID tag responds to this command by outputting voltage through its chip output terminal (voltage output terminal) to determine whether the wires are conductive. Thus, if the metal wires are conductive, the RFID tag's chip input terminal (voltage input terminal) will collect voltage. At this point, the RFID tag returns a "1" to the power supply and control terminal (indicating that water immersion has occurred inside the sealed box). Upon receiving this "1" from the RFID tag, the power supply and control terminal can confirm that there is water inside the sealed box. Furthermore, when the metal wire is not conductive, the RFID tag's chip input will not detect voltage. In this case, the RFID tag returns "0" to the power supply and control terminal (indicating a break in the circuit, meaning no water has entered the sealed box). Upon receiving this "0," the power supply and control terminal confirms that there is no water inside the sealed box. Finally, regardless of the result received, the power supply and control terminal treats this result as the collected data obtained during the current process of collecting information on water immersion inside the sealed box, and uploads this data to the data storage terminal for preservation or further processing.

[0103] This application also provides an electronic device, which can be the control terminal described above, or a facility integrating the aforementioned water immersion information collection circuit (such as the aforementioned sealed box), or any type of terminal device capable of controlling or operating the merchant's water immersion information collection system. For example, the electronic device can be any smart terminal device, including tablet computers and smartphones.

[0104] Please see Figure 13 , Figure 13 The hardware structure of the electronic device in some embodiments is illustrated.

[0105] like Figure 13 As shown, in some embodiments, the electronic device provided in this application may include: The processor 1301 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application. The memory 1302 can be implemented as a read-only memory (ROM), static storage device, dynamic storage device, or random access memory (RAM). The memory 1302 can store the operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 1302 and is called and executed by the processor 1301 from the immersion information acquisition circuit of the embodiments of this application. The input / output interface 1303 is used to implement information input and output; The communication interface 1304 is used to enable communication and interaction between this device and other devices. Communication can be achieved through wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.). Bus 1305 transmits information between various components of the device (e.g., processor 1301, memory 1302, input / output interface 1303, and communication interface 1304); The processor 1301, memory 1302, input / output interface 1303 and communication interface 1304 are connected to each other within the device via bus 1305.

[0106] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for operating the immersion information acquisition system.

[0107] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0108] This application also provides a computer program product that stores a computer program, which, when executed by a processor, implements the above-described method for operating the immersion information acquisition system.

[0109] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0110] Those skilled in the art will understand that the device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0111] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A water immersion information acquisition circuit, characterized in that, The immersion information acquisition circuit includes: sensor; The metal wires include a first metal wire and a second metal wire, wherein the first metal wire is connected to the voltage output terminal of the sensor, and the second metal wire is connected to the voltage input terminal of the sensor.

2. The immersion information acquisition circuit according to claim 1, characterized in that, The immersion information acquisition circuit also includes: The terminal block includes a first channel and a second channel, the first channel and the second channel being isolated and insulated from each other; the first metal wire is connected to the voltage output terminal of the sensor through the first channel, and the second metal wire is connected to the voltage input terminal of the sensor through the second channel.

3. The immersion information acquisition circuit according to claim 1, characterized in that, The immersion information acquisition circuit also includes: A micro voltage sensing device is provided, and the second metal wire is connected to the voltage input terminal of the sensor through the micro voltage sensing device.

4. The immersion information acquisition circuit according to any one of claims 1 to 3, characterized in that, The sensor includes: The radio frequency identification (RFID) tag includes an RFID chip, a sensing circuit, and a package housing. The RFID chip is connected to two stages of the sensing circuit via a first pin and a second pin, respectively. The RFID chip is connected to a first metal wire via a third pin as a voltage output terminal, and to a second metal wire via a fourth pin as a voltage input terminal. The RFID chip and the sensing circuit are disposed inside the package housing.

5. A water immersion information acquisition system, characterized in that, The water immersion information acquisition system includes the water immersion information acquisition circuit according to any one of claims 1 to 4.

6. The immersion information acquisition system according to claim 5, characterized in that, The immersion information acquisition system also includes: The control terminal sends instructions to the sensors in the immersion information acquisition circuit to collect immersion information, and receives the pass information or break information returned by the sensors.

7. The immersion information acquisition system according to claim 6, characterized in that, The control terminal includes: The control terminal uses the radio frequency identification (RFID) read / write module to interact with the sensor and to emit electromagnetic energy to the sensor.

8. The immersion information acquisition system according to claim 6 or 7, characterized in that, The immersion information acquisition system also includes: A data storage server that interacts with the control terminal.

Images