Emergency equipment

Abstract

The invention relates to the technical field of power equipment, in particular to emergency equipment, and the emergency equipment at least comprises a host which is provided with a first near field communication module; the base is detachably connected with the host, the base is provided with a second near field communication module, and the second near field communication module is matched and associated with the first near field communication module; the second near field communication module at least comprises a coil arranged on the base and used for being matched and interconnected with the first near field communication module; and the near field communication chip is electrically connected with the coil, and the near field communication chip is used for performing data reading and writing and positioning with the first near field communication module according to the received control signal. In conclusion, the embodiment of the invention provides equipment capable of efficiently and accurately matching the base and the host.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, and more specifically, to an emergency device. Background Technology

[0002] The safe operation of the power grid is crucial to our daily lives and work, especially in vast areas prone to natural disasters. Frequent seismic activity, such as earthquakes causing landslides, ground subsidence, or the collapse of other buildings that damage power lines, directly impacts the normal operation of the power supply network. This poses a significant threat to the safe operation of the power grid and emergency response personnel, and presents a considerable challenge to the company's emergency work. Disaster relief is the top priority after any natural disaster. Power restoration work directly affects the progress of disaster relief, the lives of disaster victims, transportation, and even their lives. Therefore, the timely arrival of emergency equipment such as emergency generators and power restoration vehicles is of paramount importance. However, currently, emergency equipment is usually stored in warehouses for routine maintenance such as charging. Once in operation, if the battery is low or depleted, it must be recharged immediately for continued use. However, some charging bases and the main unit of the emergency equipment are similar in shape, making it easy for workers to mistakenly insert the main unit (A) into base B, preventing proper charging and delaying the emergency response work.

[0003] Therefore, there is an urgent need for a device that can efficiently and accurately match the base and the main unit. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides an emergency device.

[0005] A first aspect of the embodiments of this application provides an emergency device, comprising at least:

[0006] The host is equipped with a first near-field communication module;

[0007] A base, detachably connected to the host, is provided with a second near-field communication module, which is matched and associated with the first near-field communication module; the second near-field communication module includes at least:

[0008] A coil is disposed on the base, and the coil is used for mating and interconnection with the first near-field communication module;

[0009] A near-field communication chip is electrically connected to the coil. The near-field communication chip is used to perform data reading, writing, and positioning with the first near-field communication module according to the received control signals.

[0010] In an optional embodiment of this application, the second near-field communication module further includes:

[0011] A signal matching circuit is provided, wherein the input terminal of the signal matching circuit is electrically connected to the signal output terminal of the near-field communication chip, and the output terminal of the signal matching circuit is electrically connected to the coil. The signal matching circuit is used to convert the signal output by the near-field communication chip into a target frequency signal.

[0012] In one optional embodiment of this application, the signal matching circuit has at least two paths, with the inputs of the two signal matching circuits electrically connected to the signal output terminals of the near-field communication chip, and the output terminals of the two signal matching circuits electrically connected to the two ends of the coil.

[0013] In one optional embodiment of this application, the signal matching circuit includes at least one set of LC oscillation circuits.

[0014] In an optional embodiment of this application, the second near-field communication module further includes:

[0015] A power processing circuit, wherein the input terminal of the power processing circuit is electrically connected to the power supply, and the power processing circuit is used to decouple and filter the power supply voltage of the power supply.

[0016] In an optional embodiment of this application, the second near-field communication module further includes:

[0017] A level matching circuit is provided, wherein a first terminal of the level matching circuit is electrically connected to the power supply of the control circuit that sends the control signal, and a second terminal of the level matching circuit is electrically connected to the near-field communication chip. The level matching circuit is used to achieve power supply matching between the near-field communication chip and the control circuit.

[0018] In one optional embodiment of this application, the control circuit is a Bluetooth SOC circuit.

[0019] In an optional embodiment of this application, the second near-field communication module further includes:

[0020] A crystal oscillator circuit, wherein the first terminal of the crystal oscillator circuit is electrically connected to the near-field communication chip, and the second terminal of the crystal oscillator circuit is grounded.

[0021] In one optional embodiment of this application, the first near-field communication module is an NFC reader module; and / or,

[0022] The second near-field communication module is an NFC card.

[0023] In one optional embodiment of this application, the base is a waterproof charging base.

[0024] The emergency equipment provided in this application embodiment includes a main unit equipped with a first near-field communication module and a base equipped with a second near-field communication module. The second near-field communication module is matched and associated with the first near-field communication module. When the main unit is inserted into the base, the second near-field communication module is identified by the first near-field communication module. Only when the identification is successful can the main unit be accurately inserted, which can prevent misinsertion, facilitate the management of the emergency equipment, and improve the maintenance efficiency of the emergency equipment. In other words, this application embodiment provides a device that can efficiently and accurately match the base and the main unit. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0026] Figure 1 This is a schematic diagram of the emergency equipment structure provided in the embodiments of this application;

[0027] Figure 2 A circuit diagram of an exemplary second near-field communication module in an emergency equipment structure provided in this application embodiment;

[0028] Figure 3 A circuit diagram of another exemplary second near-field communication module in the emergency equipment structure provided in this application embodiment;

[0029] Figure 4 A schematic diagram of an exemplary level matching circuit 106a in the emergency equipment structure provided in this application embodiment;

[0030] Figure 5 A schematic diagram of another exemplary level matching circuit 106b in the emergency equipment structure provided in this application embodiment;

[0031] Figure 6 A circuit diagram of the control circuit in the emergency equipment structure provided in the embodiments of this application;

[0032] Figure 7 A schematic diagram of the workflow of the emergency equipment provided in the embodiments of this application.

[0033] in:

[0034] 101. Main unit; 102. Base; P5. Coil; 103a and 103b. Near field communication chip; 104a and 104b. Signal matching circuit; 105a and 105b. Power supply circuit; 106a and 106b. Level matching circuit; 107a and 107b. Crystal oscillator circuit; 600. Bluetooth SOC circuit. Detailed Implementation

[0035] In the process of developing this application, the applicant discovered that there is an urgent need for a device that can efficiently and accurately match the base and the main unit.

[0036] To address the aforementioned problems, this application provides an emergency device. To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of an emergency device, in conjunction with embodiments and accompanying drawings, is provided. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] The serial numbers assigned to components in this document, such as "first" and "second," are used solely to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used solely for the convenience of describing this application and simplifying the description. They 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, and therefore should not be construed as a limitation of this application.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] Please see Figure 1 This application provides an emergency device, comprising at least: a host 101 and a base 102, wherein the host 101 and the base 102 are detachably connected, and a near field communication (NFC) module.

[0040] The host 101 is equipped with a first near-field communication module; the first near-field communication module can be an NFC card reader module;

[0041] The base 102 is equipped with a second near-field communication module, which is matched and associated with the first near-field communication module. During operation, the host 101 and the base 102 exchange data when they are close to each other, realizing non-contact radio frequency identification (RFID) and interconnection between the host 101 and the base 102. This ensures a one-to-one identification connection between the host 101 and the base 102 to prevent mis-insertion. The base 102 can be fixed with screws using four fixing holes or with structural adhesive.

[0042] Please see Figure 2 The second near-field communication module includes at least: a coil P5, disposed on the base 102, the coil P5 being used for mating and interconnecting with the first near-field communication module;

[0043] like Figure 2 The near-field communication chip 103a is electrically connected to the coil P5. The near-field communication chip 103a is used for data reading, writing, and positioning with the first near-field communication module based on received control signals. The near-field communication chip 103a can be a U15SI512 chip, which is a 12Mb (64MB) serial NOR Flash memory that uses SPI (Serial Peripheral Interface) communication. Figure 2 The U15SI512 chip includes, for example: Figure 2 It has at least 33 interfaces.

[0044] The second near-field communication module can be an NFC card, interconnected with the NFC reader module of the first near-field communication module. When the host 101 is inserted into the base 102, the NFC reader module of the first near-field communication module identifies the NFC card of the second near-field communication module. Only successful identification allows for accurate insertion, preventing misinsertion and facilitating the management of emergency equipment. The host 101 can also be equipped with various communication modules such as Bluetooth positioning, satellite positioning, Wi-Fi positioning, and base station positioning, as well as corresponding antennas, etc. These are not exhaustive and can be flexibly adjusted according to actual needs.

[0045] The emergency equipment provided in this application embodiment includes a host 101 equipped with a first near-field communication module and a base 102 equipped with a second near-field communication module. The second near-field communication module is matched and associated with the first near-field communication module. When the host 101 is inserted into the base 102, the second near-field communication module is identified by the first near-field communication module. Only when the identification is successful can the device be accurately inserted, preventing misinsertion and facilitating the management of the emergency equipment, thereby improving the maintenance efficiency of the emergency equipment. In other words, this application embodiment provides a device that can efficiently and accurately match the base 102 and the host 101.

[0046] In an optional embodiment of this application, the process of the control circuit performing data reading, writing, and positioning with the first near-field communication module based on the received control signal is as follows:

[0047] The initial signal set is collected to obtain the optimal mode. The prediction residual statistics are calculated, and the verification optimal mode is selected. The resultant acceleration and dynamic feature weights are calculated. An LSTM model is constructed to predict the dynamic force. The correction force vector is obtained by combining Newtonian mechanics. The nonlinear state transition function is defined, and the particle swarm is initialized to obtain the predicted state. The predicted state is optimized by combining the observation likelihood and prior distribution to obtain the preliminary fusion state.

[0048] The pseudorange is corrected by calculating the signal propagation center based on the verification optimal mode, and the optimized dynamic feature weights are obtained. Based on the preliminary fusion state, the state acceleration is calculated, and the equivalent mass is obtained by combining the correction force vector. The observation likelihood is updated, and the final fusion state is output.

[0049] Based on the predicted residual statistics, a residual sequence is generated, the optimal AR model parameters are initialized, and the optimal parameters are updated using the RLS update formula. The optimal parameters are then output, the state-space model is obtained through transformation, and the Kalman filter is used for denoising to obtain the denoised residual sequence.

[0050] Based on the final fusion state and signal propagation center, pseudorange innovation is calculated, the innovation covariance matrix is ​​updated, the anomaly detection threshold is calculated based on the updated observation likelihood, and the anomaly state is marked. Based on the denoised residual sequence, an autocorrelation function is constructed, the predicted positioning error is calculated, the multi-channel weighting factor is calculated based on the updated observation likelihood, the positioning frequency is obtained by combining the anomaly state, and the final fusion state is combined to form a positioning data packet for broadcasting.

[0051] The initialization of the particle swarm to obtain the predicted state includes:

[0052] Based on the optimal model, the prediction residual statistics are calculated, the output is screened to verify the optimal model, the resultant acceleration and dynamic feature weights are calculated, and the corresponding data are normalized to obtain normalized data. The LSTM model is used to predict dynamic forces, and Newtonian mechanics is used for constraints to obtain the correction force vector.

[0053] Based on the correction force vector and dynamic feature weights, combined with Newton's second law, a nonlinear state transition function is defined to initialize the particle swarm. The nonlinear state transition function is used to predict the particle state to obtain the predicted state. Based on the Gaussian error model, the dynamic feature weights are updated.

[0054] The optimization of the predicted state by combining observed likelihood and prior distribution to output the final fused state includes:

[0055] Based on two-layer optimization, the predicted state is optimized by combining the observed likelihood and prior distribution. The preliminary fusion state is obtained by weighted averaging by combining the updated dynamic feature weights, the signal propagation center is initialized, the pseudorange bias is calculated, the pseudorange is corrected by combining the prediction residual statistics and pseudorange bias, the updated dynamic feature weights are updated, and the optimized dynamic feature weights are output.

[0056] Based on the initial fusion state, the state acceleration is calculated. Combining the correction force vector and the state acceleration, the equivalent mass is calculated using linear least squares. The particle observation likelihood is updated, the dynamic feature weights are updated, the particle state is recalculated, and the final fusion state is output.

[0057] The step of denoising using Kalman filtering to obtain a denoised residual sequence includes:

[0058] Based on the predicted residual statistics, the time series window is initialized and spliced ​​to generate the residual sequence, thus obtaining the optimal AR model. The optimal AR model is then transformed to obtain the state-space model. Combined with the residual sequence, Kalman filtering is used to denoise the data, resulting in a denoised residual sequence.

[0059] The step of calculating multi-channel weighting factors based on updated observation likelihood and obtaining the location frequency by combining abnormal states includes:

[0060] Based on the updated observation likelihood, the anomaly detection threshold is calculated, and abnormal states are screened and marked. Based on the denoised residual sequence, the autocorrelation function is constructed using autocorrelation envelope maximum entropy spectrum analysis to calculate the predicted positioning error. Based on the final dynamic feature weights and the updated observation likelihood, the multi-channel weighting factor is calculated. Based on the multiplication operation of the multi-channel weighting factor and the final dynamic feature weights, the updated final dynamic feature weights are obtained, and the positioning frequency is calculated.

[0061] The splicing of location data packets for broadcasting includes:

[0062] Based on the final fusion state, the location data packets are spliced ​​together with the location frequency and transmitted using the verified optimal mode.

[0063] The process of collecting the initial signal set to obtain the optimal mode includes:

[0064] The system uses intelligent positioning terminals to collect multi-mode data, generate an initial signal set, calculate the comprehensive quality score of the initial signal set, and select and set the optimal mode.

[0065] Please see Figure 2 In one optional embodiment of this application, the second near-field communication module further includes a signal matching circuit. This application provides two types of signal matching circuits, such as... Figure 2 The signal matching circuit 104a and Figure 3 The signal matching circuit 104b in the middle, wherein:

[0066] like Figure 2 As shown, the input terminal of the signal matching circuit 104a is electrically connected to the signal output terminals TX1 and TX2 of the near-field communication chip 103a, and the output terminal of the signal matching circuit 104a is electrically connected to the coil P5. The signal matching circuit 104a is used to convert the signal output by the near-field communication chip 103a into a target frequency signal.

[0067] In one optional embodiment of this application, the signal matching circuit 104a has at least two paths. The inputs of the two paths of the signal matching circuit 104a are electrically connected to the signal output terminals of the near-field communication chip 103a, and the output terminals of the two paths of the signal matching circuit 104a are electrically connected to the two ends of the coil P5, port 1 and port 2, respectively.

[0068] In one optional embodiment of this application, the signal matching circuit 104a includes at least one set of LC oscillation circuits. For example... Figure 2 The first signal matching circuit 104a consists of L12, C14, C83, C81, C91, and R64. The device parameters of each component are as follows: Figure 2 As shown in the figure; the second signal matching circuit 104a consists of L13, C16, C90, C82, C92 and R65, and the device parameters of each component are as follows. Figure 2 As shown in the image. It can also be as follows: Figure 3 In the above, the signal matching circuit 104b includes: a first signal matching circuit 104b composed of L4, C30, C35, C33, C37 and R20; and a second signal matching circuit 104b composed of L5, C31, C36, C34, C38 and R21. ANT1 and ANT2 are equivalent to... Figure 2 Coil P5 in the middle.

[0069] Please see Figure 2 and Figure 3 In one optional embodiment of this application, the second near-field communication module further includes a power processing circuit. This application provides two exemplary power processing circuits, such as... Figure 2 The power processing circuit 105a and Figure 3 The power processing circuit 105b in the middle, wherein:

[0070] like Figure 2The input terminal of the power processing circuit 105a is electrically connected to the power supply, and the output terminal of the power processing circuit 105a is connected to the near-field communication chip 103aU15SI512 chip. The power processing circuit 105a is used to decouple and filter the supply voltage of the power supply. This power processing module includes at least a decoupling circuit and a filtering circuit. Figure 2 As shown, the power processing circuit 105a consists of C5, C6, and R58 connected in parallel. It can also be configured as follows... Figure 3 The power processing circuit 105b shown consists of C22, C23 and R16 connected in parallel.

[0071] Please see Figure 4 and Figure 5 In one optional embodiment of this application, the second near-field communication module further includes a level matching circuit. This application provides two exemplary embodiments, including... Figure 4 The level matching circuit 106a and Figure 5 The level matching circuit 106b in the middle, wherein:

[0072] like Figure 4 As shown, three exemplary level matching circuits 106a are illustrated. The first terminal of each level matching circuit 106a is electrically connected to the power supply of the control circuit that sends the control signal. The second terminal of each level matching circuit 106a is electrically connected to the power supply pin of the near-field communication chip 103aU15SI512. These level matching circuits are used to achieve power supply matching between the near-field communication chip and the control circuit. This can also be... Figure 5 The example level matching circuit 106b, constructed from the ME6232C33M5G chip, performs level matching. In this embodiment, the near-field communication chip and control circuit use the same power supply. However, since the operating voltages of the control circuit and the near-field communication chip are different (typically 1.8V for the control circuit and 3.3V for the near-field communication chip), this embodiment employs a level matching circuit to perform level conversion on the power supply of the control circuit, simplifying the circuit and providing normal power to the near-field communication chip. In an optional embodiment, if a power processing circuit is introduced, the level matching circuit is located below the power processing circuit; that is, the input of the level matching circuit is electrically connected to the output of the power processing circuit, and the output of the level matching circuit is electrically connected to the near-field communication chip.

[0073] In one optional embodiment of this application, the control circuit is a Bluetooth SOC circuit 600. For example... Figure 6Here is an example of a Bluetooth SOC circuit 600, which serves as the control circuit for an emergency device, i.e., as the main control chip for the emergency device. The Bluetooth SOC circuit 600 can be implemented using an NRF52840 SOC chip, which, in addition to having the functions of an MCU (Microcontroller Unit, a microcomputer system integrating a CPU, memory, and peripheral interfaces), also integrates Bluetooth functionality. It has a high degree of integration and can save PCB board space.

[0074] Please continue reading Figure 2 In one optional embodiment of this application, the second near-field communication module further includes a crystal oscillator circuit, as provided in the embodiments of this application. Figure 2 and Figure 3 Two types of crystal oscillator circuits are provided: crystal oscillator circuit 107a and crystal oscillator circuit 107b, wherein:

[0075] The first terminal of the crystal oscillator circuit 107a is electrically connected to the near-field communication chip 103a, and the second terminal of the crystal oscillator circuit 107a is grounded, providing a driving force for the near-field communication chip 103a and ensuring its normal operation. This crystal oscillator circuit 107a can, for example, be composed of... Figure 2 The crystal oscillator circuit 107b is composed of R57, Y2, C4, and C7. For example, it can be constructed from... Figure 3 It consists of R15, Y1, C21 and C24.

[0076] In one optional embodiment of this application, the base 102 is a waterproof charging base 102 to prevent malfunctions during severe weather or floods, which could delay the normal use of emergency equipment and improve the operational stability of the emergency equipment.

[0077] In one optional embodiment of this application, please refer to Figure 7 The above-mentioned emergency equipment shall be used in accordance with the following steps:

[0078] Determine the operational status of emergency equipment;

[0079] If the movement state of the emergency equipment is in a moving state, then the working mode of the emergency equipment is determined to be the emergency working mode;

[0080] If the movement state of the emergency equipment is in a stationary state, then the working mode of the emergency equipment is determined to be the normal working mode;

[0081] If the emergency equipment is in the emergency working mode, and the first interval between the current time and the last location time is greater than a first preset time, then:

[0082] The emergency device is located by calling the Bluetooth positioning module;

[0083] If Bluetooth positioning is successful, the operating mode of the emergency device is updated and sent to the control terminal;

[0084] If Bluetooth positioning fails, the satellite positioning module, the WIFI positioning module, and the base station positioning module are sequentially invoked for polling and positioning until the emergency device is successfully located.

[0085] If the emergency device is in the normal working mode, and the first interval between the current time and the last positioning time is longer than the second preset time, then the Bluetooth positioning module, the satellite positioning module, the WIFI positioning module and the base station positioning module are sequentially called to poll for positioning until the emergency device is successfully located; wherein, the second preset time is longer than the first preset time.

[0086] Update the operating mode of the positioning device, and upload the positioning data and the operating mode to the control terminal via the 4G communication module;

[0087] If 4G communication fails, the BeiDou-3 module will be invoked to upload the positioning data to the control terminal.

[0088] Wherein: updating the operating mode of the emergency equipment and sending it to the control terminal includes at least:

[0089] The secondary operating mode of the emergency equipment is determined based on the positioning results.

[0090] If the secondary working mode is in the emergency working mode, and the third interval between the current time and the last communication time is longer than the first preset time, then the positioning data will be transmitted to the control terminal through the 4G communication module or the Beidou-3 module.

[0091] If the secondary working mode is in the normal working mode, and the fourth interval between the current time and the last communication time is longer than the third preset time, then the positioning data will be transmitted to the control terminal through the 4G communication module or the Beidou-3 module.

[0092] It should be understood that although the steps in the flowchart are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order constraint on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the diagram may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0093] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An emergency device, characterized in that, At least including: The host is equipped with a first near-field communication module; The base is detachably connected to the host, and the base is provided with a second near-field communication module, which is matched and associated with the first near-field communication module. The second near-field communication module includes at least: A coil is disposed on the base, and the coil is used for mating and interconnection with the first near-field communication module; A near-field communication chip is electrically connected to the coil. The near-field communication chip is used to perform data reading, writing, and positioning with the first near-field communication module according to the received control signals.

2. The emergency equipment according to claim 1, characterized in that, The second near-field communication module also includes: A signal matching circuit is provided, wherein the input terminal of the signal matching circuit is electrically connected to the signal output terminal of the near-field communication chip, and the output terminal of the signal matching circuit is electrically connected to the coil. The signal matching circuit is used to convert the signal output by the near-field communication chip into a target frequency signal.

3. The emergency equipment according to claim 2, characterized in that, The signal matching circuit has at least two paths. The inputs of the two signal matching circuits are electrically connected to the signal output terminals of the near-field communication chip, and the output terminals of the two signal matching circuits are electrically connected to the two ends of the coil.

4. The emergency equipment according to claim 2, characterized in that, The signal matching circuit includes at least one set of LC oscillation circuits.

5. The emergency equipment according to claim 1, characterized in that, The second near-field communication module also includes: A power processing circuit, wherein the input terminal of the power processing circuit is electrically connected to the power supply, and the power processing circuit is used to decouple and filter the power supply voltage of the power supply.

6. The emergency equipment according to claim 1, characterized in that, The second near-field communication module also includes: A level matching circuit is provided, wherein a first terminal of the level matching circuit is electrically connected to the power supply of the control circuit that sends the control signal, and a second terminal of the level matching circuit is electrically connected to the near-field communication chip. The level matching circuit is used to achieve power supply matching between the near-field communication chip and the control circuit.

7. The emergency equipment according to claim 1, characterized in that, The control circuit is a Bluetooth SOC circuit.

8. The emergency equipment according to claim 1, characterized in that, The second near-field communication module also includes: A crystal oscillator circuit, wherein the first terminal of the crystal oscillator circuit is electrically connected to the near-field communication chip, and the second terminal of the crystal oscillator circuit is grounded.

9. The emergency equipment according to claim 1, characterized in that, The first near-field communication module is an NFC card reader module; and / or, The second near-field communication module is an NFC card.

10. The emergency equipment according to claim 1, characterized in that, The base is a waterproof charging base.

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