A wireless charging floating electronic boundary stake and monitoring method

Abstract

The present invention provides a wirelessly rechargeable floating electronic boundary stake and monitoring method, comprising a hollow body, a data acquisition unit for acquiring the stake's position and acceleration signals; a communication unit connected to the data acquisition unit for remote communication; a power supply unit disposed within the body for supplying power to the data acquisition and communication units; and a wireless charging unit disposed within the body for charging the power supply unit. The body floats with the liquid level, and the wireless charging unit also performs wireless energy transmission with an external portable charging station. This solution does not utilize an external interface, but rather wireless charging. The stake itself has built-in position detection, real-time time acquisition, and acceleration detection functions, enabling environmental awareness. It is particularly suitable for long-term use in humid water environments and is not restricted by changes in liquid level.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic boundary stakes, and in particular to a wirelessly charged floating electronic boundary stake and a monitoring method. Background Art

[0002] Boundary stakes are indicators used to mark the boundaries of land with different attributes or rights. Boundary stakes can be categorized into traditional and electronic types based on their structure. Traditional boundary stakes include cement, plastic, or metal, often engraved with text for easy identification. Electronic boundary stakes are a recently developed device for confirming property rights, utilizing modern information technology to collect and transmit location information and alarm signals. Traditional boundary stakes rely on regular inspections by management personnel and are susceptible to damage or movement, negatively impacting property rights. Electronic boundary stakes offer significant advantages over traditional boundary stakes. They can sense their surroundings, preventing them from being moved or damaged, and have therefore gained widespread adoption. As electronic products, electronic boundary stakes require a built-in power supply and, if operated outdoors for extended periods, require regular charging. To facilitate charging or external solar power generation, the stakes often have a built-in charging port. This not only reduces their reliability but also makes them susceptible to damage, making them unsuitable for use in humid environments such as water bodies.

[0003] Chinese invention patent CN110867054A discloses an intelligent electronic boundary stake monitoring system. This solution uses a charging circuit to charge the electronic boundary stakes, but still uses a charging interface. This is clearly not suitable for use in humid water environments where the liquid level frequently changes. In addition, the solution itself uses a passive working mode, requiring patrol personnel to activate the RFID to work. It does not actively monitor at other times and cannot timely perceive changes in the position of the boundary stakes. Therefore, given the common shortcomings of existing electronic boundary stakes, such as external charging interfaces, unsuitability for water environments, and passive monitoring, it is of great significance to develop an electronic boundary stake without an exposed interface, sustainable operation, and applicable to humid water environments. Summary of the Invention

[0004] In view of this, the present invention proposes a floating electronic boundary stake and a monitoring method without an external interface, with an active environmental monitoring function and wireless charging.

[0005] The technical solution of the present invention is implemented as follows: On the one hand, the present invention provides a wireless charging floating electronic boundary stake, comprising:

[0006] Body, hollow inside;

[0007] A data acquisition unit is provided in the body and is used to obtain position signals and acceleration signals of boundary stakes;

[0008] A communication unit, connected to the data acquisition unit, for remote communication with a remote cloud receiving platform;

[0009] A power supply unit is provided in the body and is used to supply power to the data acquisition unit and the communication unit;

[0010] A wireless charging unit is provided in the body and is used for contactless wireless charging of the power supply unit;

[0011] The main body floats according to the height of the liquid surface; the wireless charging unit also performs wireless energy transmission with an external portable charging station.

[0012] On the basis of the above technical solution, preferably, the main body includes several support bodies and floats nested in sequence; several support bodies and floats are hollow inside, and several support bodies are provided with windows at one end away from the bottom of the water body; the end of the outermost support body without a window is fixed to the bottom of the water body, and the support body adjacent to the outermost support body is inserted into the inner surface of the window and is slidably connected to the outermost support body; the float is embedded in the window of the innermost support body and is slidably connected to the innermost support body; several support bodies and floats in a non-fixed state rise or fall with the change of liquid level; the data acquisition unit, communication unit, power supply unit and wireless charging unit are all arranged at the end of the float extending out of the water body.

[0013] Preferably, the data acquisition unit includes a positioning chip U7, an acceleration sensor U8 and an MCU; the MCU includes several communication interfaces and general input and output interfaces; pin 1 of the positioning chip U7 is electrically connected to the +3.3V power supply, pin 2 of the positioning chip U7 is grounded, and pins 3 and 4 of the positioning chip U7 are respectively electrically connected one-to-one with a communication interface of the MCU; pin 13 of the acceleration sensor U8 is electrically connected to the +3.3V power supply, pin 18 of the acceleration sensor U8 is grounded, pins 23 and 24 of the acceleration sensor U8 are respectively electrically connected one-to-one with another communication interface of the MCU, and pin 12 of the acceleration sensor U8 is electrically connected to a general input and output interface of the MCU; the positioning chip U7 adopts NEO-6M-SCH, and the acceleration sensor U8 adopts MPU6050.

[0014] Further preferably, the communication unit includes a wireless transmission chip U6 and a SIM card slot; pins 6 and 7 of the wireless transmission chip U6 are electrically connected to a communication interface of the MCU in a one-to-one correspondence, pins 11 and 12 of the wireless transmission chip U6 are grounded, pins 13 and 14 of the wireless transmission chip U6 are electrically connected to a +3.3V power supply, pin 19 of the wireless transmission chip U6 is electrically connected to a general input and output interface of the MCU, and pin 20 of the wireless transmission chip U6 is electrically connected to the VDD end of the SIM card slot, one end of the resistor R16 and the cathode of the second voltage regulator diode D2, respectively, and the other end of the resistor R16 is electrically connected to the +3.3V Electrical connection; Pin 21 of the wireless transmission chip U6 is electrically connected to the DATA end of the SIM card slot and the cathode of the third Zener diode D3 respectively; Pin 22 of the wireless transmission chip U6 is electrically connected to the CLK end of the SIM card slot and the cathode of the fourth Zener diode D4 respectively; Pin 23 of the wireless transmission chip U6 is electrically connected to the RST end of the SIM card slot and the cathode of the fifth Zener diode D5 respectively, and the anode of the second Zener diode D2, the anode of the third Zener diode D3, the anode of the fourth Zener diode D4 and the anode of the fifth Zener diode D5 are all grounded; the wireless transmission chip U6 adopts the USR-NB75 Internet of Things communication chip.

[0015] Further preferably, the power supply unit includes a battery, a buck chip U4 and a boost chip U5; the input end of the buck chip U4 is electrically connected to the positive pole of the battery, and the output end of the buck chip U4 outputs a +3.3V power supply; the input end and the enable end of the boost chip U5 are electrically connected to the positive pole of the battery, the switch end of the boost chip U5 is electrically connected to one end of the inductor L4, the other end of the inductor L4 is electrically connected to the input end of the boost chip U5, and the output end of the boost chip U5 outputs a +5V power supply; the output end of the boost chip U5 is also electrically connected to one end of the resistor R18, the other end of the resistor R18 is respectively electrically connected to one end of the resistor R17 and the feedback input end of the boost chip U5, and the other end of the resistor R17 is grounded; the buck chip U4 uses LM1117-3.3V, and the boost chip U5 uses PS7516.

[0016] Still further preferably, the wireless charging unit includes a wireless transmitting chip U1, a wireless receiving chip U2 and a charging chip U3; the input end of the wireless transmitting chip U1 is electrically connected to an external portable charging station; the output end of the wireless transmitting chip U1 is electrically connected to the first coil L1, the first coil L1 is spirally wound and abuts against the outer surface of the buoy for wireless power transmission; the input end of the wireless receiving chip U2 is electrically connected to the second coil L2, the second coil L2 is spirally wound and arranged in the buoy, and is spaced relative to the first coil L1 for wireless power reception; the wireless receiving chip U2 is electrically connected to the second coil L2, the second coil L2 is spirally wound and arranged in the buoy, and is spaced relative to the first coil L1 for wireless power reception; The output end of the receiving chip U2 is electrically connected to the input end of the charging chip U3. The charging status output end of the charging chip U3 is electrically connected to the anode of the third LED and the cathode of the fourth LED4 respectively. The cathode of the third LED is grounded, and the anode of the fourth LED is electrically connected to the input end of the charging chip U3. The output end of the charging chip U3 is electrically connected to the positive pole of the battery. The charging chip U3 is used to charge the battery. The wireless transmitting chip U1 adopts IP6826; the wireless receiving chip U2 adopts NU1680; and the charging chip U3 adopts MCP73831T.

[0017] Further preferably, the surface of the float extending out of the window is provided with a rough section, and the first coil L1 is detachably arranged on the surface of the float at the rough section; a hollow sealing box is also provided inside the float, and the data acquisition unit, communication unit, power supply unit and wireless charging unit are all provided in the sealing box; the sealing box is spaced apart from the inner surface of the float, and a buffer layer is provided between the sealing box and the inner surface of the float.

[0018] Preferably, the plurality of support bodies are each provided with a drain outlet, and the drain outlet is arranged at one end of the plurality of support bodies close to the bottom of the water body.

[0019] On the other hand, the present invention also provides a method for monitoring a wirelessly charged floating electronic boundary stake, comprising the following steps:

[0020] Equipped with the above-mentioned floating electronic boundary stake with wireless charging;

[0021] The wireless charging floating electronic boundary stake selectively enters the timing working mode or the alarm interruption mode;

[0022] In the timed working mode, the data acquisition unit and the communication unit start at a preset time interval and obtain the position signal, acceleration signal and real-time time of the current boundary stake, thereby confirming the current position and posture of the boundary stake; the position signal, acceleration signal and real-time time are packaged into a timing data packet by the communication unit and sent to the remote cloud receiving platform; after the timing data packet is successfully sent, the next timed working cycle begins. If the preset sending time threshold is reached and the timing data packet is still not successfully sent, the next timed working cycle also begins, but the data acquisition unit will accumulate and store the failed transmission records in the pre-established continuous transmission record;

[0023] In alarm interrupt mode, the continuous input signal of the acceleration sensor U8 of the data acquisition unit triggers and wakes up the MCU. The MCU further judges the input of the acceleration sensor U8 to confirm whether it is a valid vibration / tilt signal. If the signal input by the acceleration sensor U8 is confirmed to be a valid vibration / tilt signal, the data acquisition unit obtains the position signal and real-time time of the current boundary stake. The position signal, vibration / tilt signal and real-time time are encapsulated into a data packet by the communication unit and sent to the remote cloud receiving platform. If the signal input by the acceleration sensor U8 is confirmed not to be a valid vibration / tilt signal, the MCU will wait for a period of time and continue to receive input signals from the acceleration sensor U8 until a reliable vibration / tilt signal is input to the MCU. The data acquisition unit obtains the position signal and real-time time of the current boundary stake. The position signal, vibration / tilt signal and real-time time are encapsulated into an alarm data packet by the communication unit and sent to the remote cloud receiving platform. If the acceleration sensor U8 still does not return a valid input signal after exceeding the preset response time, or the communication unit reaches the preset sending time threshold and the alarm data packet is still not successfully sent, an interrupt return is performed; however, the data acquisition unit will accumulate and store this in the pre-established interrupt failure transmission record.

[0024] When in the scheduled working mode, if there are consecutive transmission failure records of scheduled data packets for N consecutive cycles; or when in the alarm interruption mode, there are consecutive transmission failure records of alarm data packets for M consecutive interruptions, the cloud receiving platform will issue a boundary stake communication abnormality warning message, prompting the management personnel to conduct on-site investigation; N and M are both integers;

[0025] The MCU of the data acquisition unit also obtains the battery charging voltage of the power supply unit and sends a charging request to the cloud receiving platform.

[0026] Preferably, when in the alarm interruption mode, if the acceleration sensor U8 has not returned a valid input signal after exceeding the preset response time, or the communication unit has reached the preset sending time threshold and the alarm data packet has not been sent successfully, when the data acquisition unit continuously accumulates and stores M times in the pre-established interruption failure transmission record, the wirelessly charged floating electronic boundary stake no longer enters the alarm interruption mode, but remains in the timing working mode, and determines whether there is an accumulation of continuous failure transmission records of the timing data packet in the current boundary stake in the timing working mode, and the data acquisition unit records and saves the records.

[0027] The wireless charging floating electronic boundary stake provided by the present invention has the following beneficial effects compared with the prior art:

[0028] (1) This solution eliminates the external interface, which is not easily damaged. Instead, it is charged through a non-contact wireless charging method and can operate reliably outdoors;

[0029] (2) The main body can adapt to changes in the water level. The equipment is built into the main body and is watertight and sealed, making the electronic boundary stake of this scheme particularly suitable for humid water environments;

[0030] (3) A combination of a timing working mode and an alarm working mode is adopted to save energy costs and actively monitor the posture and position changes of boundary markers, changing the passive monitoring of water bodies using boundary markers to an active monitoring mode, thus overcoming the inconvenience caused by regular manual inspections. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 This is a front view of a wirelessly charged floating electronic boundary stake of the present invention;

[0033] Figure 2 This is a half-section front view of a wirelessly charged floating electronic boundary stake according to the present invention;

[0034] Figure 3 A half-section front view of a buoy of a wirelessly charged floating electronic boundary stake according to the present invention;

[0035] Figure 4 This is a schematic diagram of the charging status of a wirelessly charged floating electronic boundary stake of the present invention;

[0036] Figure 5 This is a structural block diagram of a wirelessly charged floating electronic boundary stake of the present invention;

[0037] Figure 6 This is a partial wiring diagram of a wireless charging unit of a wirelessly charged floating electronic boundary stake of the present invention;

[0038] Figure 7 This is a wiring diagram of another part of the wireless charging unit of a wireless charging floating electronic boundary stake of the present invention;

[0039] Figure 8 This is a wiring diagram of a power supply unit of a wirelessly charged floating electronic boundary stake according to the present invention;

[0040] Figure 9 This is a wiring diagram of a communication unit of a wirelessly charged floating electronic boundary stake of the present invention;

[0041] Figure 10 This is a partial wiring diagram of a data acquisition unit of a wirelessly charged floating electronic boundary stake of the present invention;

[0042] Figure 11 This is a wiring diagram of a portion of a data acquisition unit of a wirelessly charged floating electronic boundary stake of the present invention;

[0043] Figure 12 This is a flow chart of a timing working mode of a monitoring method for a wirelessly charged floating electronic boundary stake according to the present invention;

[0044] Figure 13 The present invention provides a flow chart of an alarm interruption mode of a monitoring method for a wirelessly charged floating electronic boundary stake.

[0045] Figure numerals: 1. Main body; 2. Data acquisition unit; 3. Communication unit; 4. Power supply unit; 5. Wireless charging unit; 11. Support body; 12. Float; 100. Window; 200. Rough section; 120. Sealing box; 300. Buffer layer; 400. Drainage outlet; 111. First support body; 112. Second support body; 113. Third support body. DETAILED DESCRIPTION

[0046] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] like Figure 1-Figure 5As shown, on the one hand, the present invention provides a wireless charging floating electronic boundary stake, comprising:

[0048] The main body 1 is hollow inside; the internal space of the main body 1 is used to accommodate the data acquisition unit 2, the communication unit 3, the power supply unit 4 and part of the wireless charging unit 5.

[0049] The data acquisition unit 2 is provided in the body 1 and is used to obtain the position signal and acceleration signal of the boundary stake;

[0050] The communication unit 3 is connected to the data acquisition unit 2 for communicating with the remote cloud receiving platform;

[0051] The power supply unit 4 is provided in the body 1 and is used to supply power to the data acquisition unit 2 and the communication unit 3;

[0052] The wireless charging unit 5 is provided in the body 1 and is used to wirelessly charge the power supply unit 4 in a contactless manner;

[0053] The main body 1 floats with the height of the liquid surface; the wireless charging unit 5 also performs wireless energy transmission with an external portable charging station. The receiving portion of the wireless charging unit 5 is located inside the main body 1. When charging is required, the administrator carries an external portable charging station and connects it to the transmitting portion of the wireless charging unit 5. The transmitting portion and the receiving portion then perform wireless energy transmission. The transmitting portion of the wireless charging unit 5 can be integrated with the portable charging station. When not charging, it can be detachably connected to the main body 1. When charging, it can be attached or fixed to the outer surface of the main body 1. Since no external exposed interface is used, human damage and the possibility of failure or short circuit in a humid water environment are avoided, thereby improving the applicability and reliability of the water boundary stake.

[0054] Likewise Figure 1 and Figure 5 As shown, in order to adapt to the changes in the height of the water body liquid level, the main body 1 includes a number of support bodies 11 and floats 12 nested in sequence; the interiors of the several support bodies 11 and floats 12 are hollow, and a window 100 is provided at the end of the several support bodies 11 away from the bottom of the water body; the end of the outermost support body 11 that does not have the window 100 is fixed to the bottom of the water body, and the support body 11 adjacent to the outermost support body 11 is inserted into the inner surface of the window 100 and is slidably connected to the outermost support body 11; the float 12 is embedded in the window 100 of the innermost support body 11 and is slidably connected to the innermost support body 11; the several support bodies 11 and floats 12 in a non-fixed state rise or fall with the changes in the liquid level; the data acquisition unit 2, the communication unit 3, the power supply unit 4 and the wireless charging unit 5 are all provided at the end of the float 12 extending out of the water body. Figure 2 and Figure 3 Take this as an example to illustrate: Figure 2There are three support bodies 11 in the apparatus, which are distinguished by a first support body 111, a second support body 112, and a third support body 113. One end of the outermost first support body 111 is fixedly connected to the bottom of the water body, and a window 100 is provided at the other end of the first support body 111. Similarly, the second support body 112 is embedded in the window 100 of the first support body 111, the third support body 113 is embedded in the window 100 of the second support body 112, and the buoy 12 is embedded in the window 100 of the third support body 113. The support bodies 11 and the buoy 12 are made of lightweight, buoyant materials that do not hinder electromagnetic signal transmission, such as fiberglass, PVC, or acrylic. In order to better adapt to large-scale changes in water level, a drain outlet 400 is provided on each of the support bodies 11. The drain outlet 400 is provided at one end of the support bodies 11 close to the bottom of the water body. When the liquid level falls below the drain port 400 of the current support body 11, the water entering the support body 11 will be discharged from the drain port, causing the current support body 11 to retract into the window 100 of the adjacent support body 11, achieving adaptive liquid level adjustment. The illustrations herein illustrate three support bodies 11, but the number in actual use can be increased or decreased, and the illustrations should not be construed as limiting the number of support bodies 11 in the solution.

[0055] Depend on Figure 5 Combine Figure 10 and Figure 11 It can be seen that the data acquisition unit 2 includes a positioning chip U7, an acceleration sensor U8 and an MCU; the MCU includes several communication interfaces and general input and output interfaces; pin 1 of the positioning chip U7 is electrically connected to the +3.3V power supply, pin 2 of the positioning chip U7 is grounded, and pins 3 and 4 of the positioning chip U7 are electrically connected one-to-one with a communication interface of the MCU; pin 13 of the acceleration sensor U8 is electrically connected to the +3.3V power supply, pin 18 of the acceleration sensor U8 is grounded, pin 23 and pin 24 of the acceleration sensor U8 are electrically connected one-to-one with another communication interface of the MCU, and pin 12 of the acceleration sensor U8 is electrically connected to a general input and output interface of the MCU; the positioning chip U7 adopts NEO-6M-SCH, and the acceleration sensor U8 adopts MPU6050. Positioning chip U7 is a GPS chip with both timing and global positioning capabilities. It can obtain the current real-time time and the current location of the boundary stakes. It communicates with the MCU via the UART port. In addition to the models provided in this article, other positioning chips supporting GNSS or BeiDou systems are also available, but these are not discussed here. Accelerometer U8 integrates a three-axis gyroscope and a three-axis MEMS accelerometer with a built-in 16-bit ADC. It communicates with the MCU via the IIC serial bus and can measure angles and accelerations. Of course, measuring the tilt of boundary stakes can also be achieved using a tilt switch, but this is not discussed here.

[0056] like Figure 5 Combine Figure 9 As shown, the communication unit 3 includes a wireless transmission chip U6 and a SIM card slot; pins 6 and 7 of the wireless transmission chip U6 are electrically connected to a communication interface of the MCU in a one-to-one correspondence, pins 11 and 12 of the wireless transmission chip U6 are grounded, pins 13 and 14 of the wireless transmission chip U6 are electrically connected to a +3.3V power supply, pin 19 of the wireless transmission chip U6 is electrically connected to a general input and output interface of the MCU, pin 20 of the wireless transmission chip U6 is electrically connected to the VDD end of the SIM card slot, one end of the resistor R16 and the cathode of the second voltage regulator diode D2, and the other end of the resistor R16 is electrically connected to the +3.3V power supply. Connection; Pin 21 of the wireless transmission chip U6 is electrically connected to the DATA end of the SIM card slot and the cathode of the third Zener diode D3 respectively; Pin 22 of the wireless transmission chip U6 is electrically connected to the CLK end of the SIM card slot and the cathode of the fourth Zener diode D4 respectively; Pin 23 of the wireless transmission chip U6 is electrically connected to the RST end of the SIM card slot and the cathode of the fifth Zener diode D5 respectively, and the anode of the second Zener diode D2, the anode of the third Zener diode D3, the anode of the fourth Zener diode D4 and the anode of the fifth Zener diode D5 are all grounded; the wireless transmission chip U6 adopts the USR-NB75 Internet of Things communication chip. The wireless transmission chip U6 supports 4G / 5G and NB-IOT Internet of Things communications, which can be selected at will. The wireless transmission chip U6 itself is connected to the MCU through the UART port; and communicates with the SIM card slot through the reserved pins 20, 21, 22, and 23. The second Zener diode D2, the third Zener diode D3, the fourth Zener diode D4 and the fifth Zener diode D5 are used for voltage limiting. Pin 20 of the wireless transmission chip U6 is also pulled up by resistor R16.

[0057] like Figure 5 Combine Figure 8As shown, the power supply unit 4 includes a battery BAT, a buck chip U4 and a boost chip U5; the input end of the buck chip U4 is electrically connected to the positive pole of the battery, the output end of the buck chip U4 outputs a +3.3V power supply, and the capacitors C19 and C20 at the input and output ends of the buck chip U4 have a filtering function; the input end and the enable end of the boost chip U5 are electrically connected to the positive pole of the battery, the switch end of the boost chip U5 is electrically connected to one end of the inductor L4, the other end of the inductor L4 is electrically connected to the input end of the boost chip U5, and the output end of the boost chip U5 outputs a +5V power supply; the output end of the boost chip U5 is also electrically connected to one end of the resistor R18, the other end of the resistor R18 is respectively electrically connected to one end of the resistor R17 and the feedback input end of the boost chip U5, and the other end of the resistor R17 is grounded; the buck chip U4 uses LM1117-3.3V, and the boost chip U5 uses PS7516. Battery BAT can be a lithium battery with a voltage of approximately 3.7-4.2V. To provide the operating voltage for communication unit 3, data acquisition unit 2, and wireless charging unit 5, the output voltage of battery BAT needs to be stepped up or stepped down. Inductor L4, used around boost chip U5, determines the switching frequency and efficiency of the boost conversion. Resistors R18 and R17 form a voltage divider circuit. The divided voltage signal is sent back to the feedback input of boost chip U5 as feedback for the +5V power output, forming a closed feedback loop. This allows boost chip U5 to stabilize the +5V power output based on the magnitude of the feedback signal.

[0058] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7As shown, the wireless charging unit 5 includes a wireless transmitting chip U1, a wireless receiving chip U2 and a charging chip U3; the input end of the wireless transmitting chip U1 is electrically connected to an external portable charging station; the output end of the wireless transmitting chip U1 is electrically connected to the first coil L1, which is spirally wound and abuts against the outer surface of the buoy 12 for wireless power transmission; the input end of the wireless receiving chip U2 is electrically connected to the second coil L2, which is spirally wound and arranged in the buoy 12 and is spaced relative to the first coil L1 for wireless power reception; The output end of the receiving chip U2 is electrically connected to the input end of the charging chip U3. The charging status output end of the charging chip U3 is electrically connected to the anode of the third LED and the cathode of the fourth LED4 respectively. The cathode of the third LED is grounded, and the anode of the fourth LED is electrically connected to the input end of the charging chip U3. The output end of the charging chip U3 is electrically connected to the positive pole of the battery. The charging chip U3 is used to charge the battery. The wireless transmitting chip U1 adopts IP6826; the wireless receiving chip U2 adopts NU1680; and the charging chip U3 adopts MCP73831T. The circuit shown in the figure is divided into three parts: power transmitting part, power receiving part and battery charging part. The power transmitting part corresponds to Figure 4 and Figure 6 , the input signal of the external portable charging station is Figure 6 The VIN in the figure can be a DC signal of 12V or above. The first coil L1 connected in parallel between the LX1 and LX2 pins is the transmitting coil. Figure 4 The dotted circle part in the figure has an output power of 5W-15W; capacitors C5, C6, C7 and C8 are used as decoupling capacitors, and the resistors R7 and R8 on the cathode side of the first voltage stabilizing diode D1 obtain a voltage signal VDET after voltage division, which is fed back to pin 30 of the wireless transmitter chip U1 as the input voltage feedback signal; and resistors R6, C9, R9 and capacitor C10 constitute a branch of the demodulation input, and the obtained VDECODE signal is input to pin 18 of the wireless transmitter chip U1, which is the input end of the built-in demodulator. In addition, in order to facilitate the connection between the wireless transmitter chip U1 and the external portable charging station, the DP, DM, CC1 and CC2 pins of the wireless transmitter chip U1 are electrically connected to the extended USB TYPEC interface, and the first light-emitting diode LED1 and the second light-emitting diode LED2 are used to indicate the wireless charging output status. The power receiving part corresponds to Figure 3 and Figure 7 The upper part of the second coil L2 is Figure 3In the solid circle part, the capacitors C11, C12 and C13 of the wireless receiving chip U2 play a decoupling role. Pins 16 and 5 of the wireless receiving chip U2 serve as power input terminals, and pins 6 and 15 are rectifier outputs. They should be as far away from other signal circuits as possible to reduce the resonant loop. Pins 8, 11, 9 and 10 of the wireless receiving chip U2 are respectively connected to the general input and output ports of the MCU and the IIC serial bus to realize interrupt, enable or communication functions. Pin 14 of the wireless receiving chip U2 outputs the VOUT1 voltage signal. However, the VOUT1 voltage signal may not be directly used by the battery BAT, so in Figure 7 A battery charging unit has been added below to reduce VOUT1 to a suitable charging voltage for battery BAT. Charging chip U3 is used here. When charging the battery, pin 1STAT of charging chip U3 outputs a low level, illuminating LED4 and turning off LED3. When not charging the battery, pin 1STAT of charging chip U3 outputs a high level, turning off LED4 and turning on LED3. Furthermore, the positive terminal of battery BAT can be connected to an ADC to measure the output voltage of battery BAT and determine its remaining capacity.

[0059] As a preferred embodiment, Figure 1 and Figure 3 As shown, the surface of the float 12 extending from the window 100 is provided with a rough section 200, and the first coil L1 is detachably mounted on the surface of the float 12 at the rough section 200. A hollow sealed box 120 is also disposed within the float 12, and the data acquisition unit 2, communication unit 3, power supply unit 4, and wireless charging unit 5 are all disposed within the sealed box 120. The sealed box 120 is spaced apart from the inner surface of the float 12, and a buffer layer 300 is disposed between the sealed box 120 and the inner surface of the float 12. The first coil L1 can be magnetically attached to the float 12 at the rough section 200. The surface of the float 12 can be provided with ferromagnetic material. The rough section 200 increases the friction between the first coil L1 and the surface of the float 12, preventing the first coil L1 from slipping. Alternatively, the first coil L1 can be wrapped around the surface of the float 12 using a flexible strap, which can be further provided with a tether or Velcro to facilitate detachment from the float 12.

[0060] On the other hand, the present invention also provides a method for monitoring a wirelessly charged floating electronic boundary stake, comprising the following steps:

[0061] Equipped with the above-mentioned floating electronic boundary stake with wireless charging;

[0062] The wireless charging floating electronic boundary stake selectively enters the timing working mode or the alarm interruption mode;

[0063] In the timed working mode, the data acquisition unit and the communication unit start at a preset time interval and obtain the position signal, acceleration signal and real-time time of the current boundary stake, thereby confirming the current position and posture of the boundary stake; the position signal, acceleration signal and real-time time are packaged into a timing data packet by the communication unit and sent to the remote cloud receiving platform; after the timing data packet is successfully sent, the next timed working cycle begins. If the preset sending time threshold is reached and the timing data packet is still not successfully sent, the next timed working cycle also begins, but the data acquisition unit will accumulate and store the failed transmission records in the pre-established continuous transmission record;

[0064] In alarm interrupt mode, the continuous input signal of the acceleration sensor U8 of the data acquisition unit triggers and wakes up the MCU. The MCU further judges the input of the acceleration sensor U8 to confirm whether it is a valid vibration / tilt signal. If the signal input by the acceleration sensor U8 is confirmed to be a valid vibration / tilt signal, the data acquisition unit obtains the position signal and real-time time of the current boundary stake. The position signal, vibration / tilt signal and real-time time are encapsulated into a data packet by the communication unit and sent to the remote cloud receiving platform. If the signal input by the acceleration sensor U8 is confirmed not to be a valid vibration / tilt signal, the MCU will wait for a period of time and continue to receive input signals from the acceleration sensor U8 until a reliable vibration / tilt signal is input to the MCU. The data acquisition unit obtains the position signal and real-time time of the current boundary stake. The position signal, vibration / tilt signal and real-time time are encapsulated into an alarm data packet by the communication unit and sent to the remote cloud receiving platform. If the acceleration sensor U8 still does not return a valid input signal after exceeding the preset response time, or the communication unit reaches the preset sending time threshold and the alarm data packet is still not successfully sent, an interrupt return is performed; however, the data acquisition unit will accumulate and store this in the pre-established interrupt failure transmission record.

[0065] When in the scheduled working mode, if there are consecutive transmission failure records of scheduled data packets for N consecutive cycles; or when in the alarm interruption mode, there are consecutive transmission failure records of alarm data packets for M consecutive interruptions, the cloud receiving platform will issue a boundary stake communication abnormality warning message, prompting the management personnel to conduct on-site investigation; N and M are both integers;

[0066] The MCU of the data acquisition unit also obtains the battery charging voltage of the power supply unit and sends a charging request to the cloud receiving platform.

[0067] To confirm whether the communication unit or data acquisition unit is in a reliable operating state, in alarm interrupt mode, if the acceleration sensor U8 fails to return a valid input signal after exceeding the preset response time, or if the communication unit reaches the preset transmission time threshold and the alarm data packet is still not successfully transmitted, when the data acquisition unit continuously accumulates and stores M times in the pre-established interruption failure transmission record, the wireless charging floating electronic boundary stake will no longer enter alarm interrupt mode, but will remain in timed operation mode. It will determine whether the current boundary stake has accumulated a record of consecutive failed transmissions of the timed data packet in the timed operation mode, and the data acquisition unit will record and store this record. That is, if the communication unit or acceleration sensor U8 fails to respond normally multiple times in alarm interrupt mode, it will then switch to timed operation mode and determine a certain number of times. If it fails to respond normally, it indicates that the communication unit may be faulty, and the cloud receiving platform will issue a boundary stake communication abnormality warning message, notifying management personnel to conduct an inspection.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wireless charging floating electronic boundary stake, characterized in that: include: Body (1), hollow inside; A data acquisition unit (2) is provided in the body (1) and is used to obtain position signals and acceleration signals of boundary stakes; A communication unit (3) is connected to the data acquisition unit (2) for remote communication; A power supply unit (4) is provided in the body (1) and is used to supply power to the data acquisition unit (2) and the communication unit (3); A wireless charging unit (5) is provided in the body (1) and is used for contactless wireless charging of the power supply unit (4); The body (1) floats along with the height of the liquid surface; the wireless charging unit (5) also performs wireless energy transmission with an external portable charging station; The body (1) comprises a plurality of support bodies (11) and floats (12) nested in sequence; the interiors of the plurality of support bodies (11) and floats (12) are hollow, and a window (100) is provided at one end of the plurality of support bodies (11) away from the bottom of the water body; the end of the outermost support body (11) not having the window (100) is fixed to the bottom of the water body, and the support body (11) adjacent to the outermost support body (11) is inserted into the inner surface of the window (100) and is slidably connected to the outermost support body (11); the float (12) is embedded in the window (100) of the innermost support body (11) and is slidably connected to the innermost support body (11); the plurality of support bodies (11) and floats (12) in a non-fixed state rise or fall following changes in the liquid level; the data acquisition unit (2), the communication unit (3), the power supply unit (4) and the wireless charging unit (5) are all provided at the end of the float (12) extending out of the water body.

2. The wireless charging floating electronic boundary stake according to claim 1, characterized in that: The data acquisition unit (2) includes a positioning chip U7, an acceleration sensor U8 and an MCU; the MCU includes several communication interfaces and general input and output interfaces; pin 1 of the positioning chip U7 is electrically connected to a +3.3V power supply, pin 2 of the positioning chip U7 is grounded, and pins 3 and 4 of the positioning chip U7 are electrically connected to a communication interface of the MCU in a one-to-one correspondence; pin 13 of the acceleration sensor U8 is electrically connected to a +3.3V power supply, pin 18 of the acceleration sensor U8 is grounded, pins 23 and 24 of the acceleration sensor U8 are electrically connected to another communication interface of the MCU in a one-to-one correspondence, and pin 12 of the acceleration sensor U8 is electrically connected to a general input and output interface of the MCU; the positioning chip U7 adopts NEO-6M-SCH, and the acceleration sensor U8 adopts MPU6050.

3. The wireless charging floating electronic boundary stake according to claim 2, characterized in that: The communication unit (3) includes a wireless transmission chip U6 and a SIM card slot; pins 6 and 7 of the wireless transmission chip U6 are electrically connected to a communication interface of the MCU in a one-to-one correspondence; pins 11 and 12 of the wireless transmission chip U6 are grounded; pins 13 and 14 of the wireless transmission chip U6 are electrically connected to a +3.3V power supply; pin 19 of the wireless transmission chip U6 is electrically connected to a universal input and output interface of the MCU; pin 20 of the wireless transmission chip U6 is electrically connected to the VDD end of the SIM card slot, one end of a resistor R16 and the cathode of a second voltage regulator diode D2, respectively; the other end of the resistor R16 is electrically connected to the +3.3V power supply. Connection; Pin 21 of the wireless transmission chip U6 is electrically connected to the DATA end of the SIM card slot and the cathode of the third Zener diode D3 respectively; Pin 22 of the wireless transmission chip U6 is electrically connected to the CLK end of the SIM card slot and the cathode of the fourth Zener diode D4 respectively; Pin 23 of the wireless transmission chip U6 is electrically connected to the RST end of the SIM card slot and the cathode of the fifth Zener diode D5 respectively, and the anode of the second Zener diode D2, the anode of the third Zener diode D3, the anode of the fourth Zener diode D4 and the anode of the fifth Zener diode D5 are all grounded; the wireless transmission chip U6 adopts the USR-NB75 Internet of Things communication chip.

4. The wireless charging floating electronic boundary stake according to claim 3, characterized in that: The power supply unit (4) includes a battery, a buck chip U4, and a boost chip U5; the input end of the buck chip U4 is electrically connected to the positive electrode of the battery, and the output end of the buck chip U4 outputs a +3.3V power supply; the input end and the enable end of the boost chip U5 are electrically connected to the positive electrode of the battery, the switch end of the boost chip U5 is electrically connected to one end of the inductor L4, the other end of the inductor L4 is electrically connected to the input end of the boost chip U5, and the output end of the boost chip U5 outputs a +5V power supply; The output end of the boost chip U5 is also electrically connected to one end of the resistor R18, the other end of the resistor R18 is electrically connected to one end of the resistor R17 and the feedback input end of the boost chip U5, and the other end of the resistor R17 is grounded; the buck chip U4 uses LM1117-3.3V, and the boost chip U5 uses PS7516.

5. The wireless charging floating electronic boundary stake according to claim 4, characterized in that: The wireless charging unit (5) includes a wireless transmitting chip U1, a wireless receiving chip U2, and a charging chip U3; the input end of the wireless transmitting chip U1 is electrically connected to an external portable charging station; the output end of the wireless transmitting chip U1 is electrically connected to a first coil L1, the first coil L1 is spirally wound and abuts against the outer surface of the buoy (12), and is used for wireless power transmission; the input end of the wireless receiving chip U2 is electrically connected to a second coil L2, the second coil L2 is spirally wound and arranged in the buoy (12), and is spaced relative to the first coil L1, and is used for wireless power reception; The output end of the wireless receiving chip U2 is electrically connected to the input end of the charging chip U3. The charging status output end of the charging chip U3 is electrically connected to the anode of the third LED and the cathode of the fourth LED4 respectively. The cathode of the third LED is grounded, and the anode of the fourth LED is electrically connected to the input end of the charging chip U3. The output end of the charging chip U3 is electrically connected to the positive pole of the battery. The charging chip U3 is used to charge the battery. The wireless transmitting chip U1 adopts IP6826; the wireless receiving chip U2 adopts NU1680; and the charging chip U3 adopts MCP73831T.

6. The wireless charging floating electronic boundary stake according to claim 5, characterized in that: The surface of the float (12) extending out of the window (100) is provided with a rough section (200), and the first coil L1 is detachably provided on the surface of the float (12) at the rough section (200); a hollow sealing box (120) is also provided inside the float (12), and a data acquisition unit (2), a communication unit (3), a power supply unit (4) and a wireless charging unit (5) are all provided in the sealing box (120); the sealing box (120) is spaced apart from the inner surface of the float (12), and a buffer layer (300) is provided between the sealing box (120) and the inner surface of the float (12).

7. The wireless charging floating electronic boundary stake according to claim 6, characterized in that: A plurality of support bodies (11) nested in sequence are all provided with a drainage port (400), and the drainage port (400) is arranged at one end of the plurality of support bodies (11) close to the bottom of the water body.

8. A method for monitoring a wirelessly charged floating electronic boundary stake, characterized in that: The steps include: A floating electronic boundary stake equipped with wireless charging according to any one of claims 5 to 7; The wireless charging floating electronic boundary stake selectively enters the timing working mode or the alarm interruption mode; In the timed working mode, the data acquisition unit and the communication unit start at a preset time interval and obtain the position signal, acceleration signal and real-time time of the current boundary stake, thereby confirming the current position and posture of the boundary stake; the position signal, acceleration signal and real-time time are packaged into a timing data packet by the communication unit and sent to the remote cloud receiving platform; after the timing data packet is successfully sent, the next timed working cycle begins. If the preset sending time threshold is reached and the timing data packet is still not successfully sent, the next timed working cycle also begins, but the data acquisition unit will accumulate and store the failed transmission records in the pre-established continuous transmission record; In alarm interrupt mode, the continuous input signal of the acceleration sensor U8 of the data acquisition unit triggers and wakes up the MCU. The MCU further judges the input of the acceleration sensor U8 to confirm whether it is a valid vibration / tilt signal. If the signal input by the acceleration sensor U8 is confirmed to be a valid vibration / tilt signal, the data acquisition unit obtains the position signal and real-time time of the current boundary stake. The position signal, vibration / tilt signal and real-time time are encapsulated into a data packet by the communication unit and sent to the remote cloud receiving platform. If the signal input by the acceleration sensor U8 is confirmed not to be a valid vibration / tilt signal, the MCU will wait for a period of time and continue to receive input signals from the acceleration sensor U8 until a reliable vibration / tilt signal is input to the MCU. The data acquisition unit obtains the position signal and real-time time of the current boundary stake. The position signal, vibration / tilt signal and real-time time are encapsulated into an alarm data packet by the communication unit and sent to the remote cloud receiving platform. If the acceleration sensor U8 still does not return a valid input signal after exceeding the preset response time, or the communication unit reaches the preset sending time threshold and the alarm data packet is still not successfully sent, an interrupt return is performed; however, the data acquisition unit will accumulate and store this in the pre-established interrupt failure transmission record. When in the scheduled working mode, if there are consecutive transmission failure records of scheduled data packets for N consecutive cycles; or when in the alarm interruption mode, there are consecutive transmission failure records of alarm data packets for M consecutive interruptions, the cloud receiving platform will issue a boundary stake communication abnormality warning message, prompting the management personnel to conduct on-site investigation; N and M are both integers; The MCU of the data acquisition unit also obtains the battery charging voltage of the power supply unit and sends a charging request to the cloud receiving platform.

9. The method for monitoring a wirelessly charged floating electronic boundary stake according to claim 8, characterized in that: In the alarm interruption mode, if the acceleration sensor U8 has not returned a valid input signal after exceeding the preset response time, or the communication unit has reached the preset sending time threshold and the alarm data packet has not been sent successfully, when the data acquisition unit continuously accumulates and stores the interruption failure transmission record in the pre-established record for M times, the wireless charging floating electronic boundary stake will no longer enter the alarm interruption mode, but will continue to work in the timing working mode, and determine whether the current boundary stake has accumulated records of continuous failed transmission of timing data packets in the timing working mode, and the data acquisition unit will record and save the records.

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