Flexible electrode, wading detection system and vehicle

Abstract

The invention relates to a flexible electrode, a wading detection system and a vehicle, the flexible electrode comprises a flexible substrate layer and a conductive electrode layer, and the conductive electrode layer is arranged on the upper surface of the flexible substrate layer; at least two conductive electrodes which are not intersected with each other are arranged in the conductive electrode layer, and when the two conductive electrodes are conducted, a sensing signal is output. The conductive electrode layer is arranged on the upper surface of the flexible substrate layer, so that the flexible electrode is in a flat layer shape, the flat layer-shaped flexible electrode is arranged and is used for outputting a sensing signal when the two conductive electrodes in the conductive electrode layer are conducted, and the flexible electrode is smaller in size than an existing cable sensing assembly, so that the cable sensing assembly is more flexible. The arrangement convenience of the wading detection system is improved, and the complexity of water inflow detection is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle detection technology, and in particular to a flexible electrode, a water wading detection system and a vehicle. Background Art

[0002] Traditional vehicles only have a certain wading ability, but with the continuous development of vehicle industry technology, the vehicle floating function has been realized. Different from the traditional wading function that focuses on the research of vehicle wading depth detection and intelligent early warning technology, the vehicle floating function requires real-time monitoring of the vehicle wading situation and water ingress in the passenger compartment, so as to prevent the vehicle from sinking due to excessive water ingress.

[0003] In the existing technology, a cable sensor assembly and a controller are required to detect water ingress. However, the cable sensor assembly is large in size and needs to consider the wiring and cable fixing issues, which increases the complexity of implementing the water ingress detection function. Summary of the invention

[0004] The embodiments of the present application provide a flexible electrode, a water intrusion detection system and a vehicle, which reduce the complexity of implementing water intrusion detection, so as to at least partially solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned object, according to the first aspect of the present application, an embodiment of the present application provides a flexible electrode, wherein the flexible electrode comprises a flexible substrate layer and a conductive electrode layer, wherein:

[0006] The conductive electrode layer is disposed on the upper surface of the flexible base layer;

[0007] At least two mutually non-intersecting conductive electrodes are arranged in the conductive electrode layer, and a sensing signal is output when two of the conductive electrodes are connected.

[0008] Optionally, the flexible base layer has a thickness greater than 0.1 mm and a width of 4 mm to 18 mm.

[0009] Optionally, the conductive electrode is a conductive ink electrode.

[0010] Optionally, the conductive ink includes one of a silver-based conductive ink and a graphene-based conductive ink.

[0011] Optionally, each conductive electrode in the conductive electrode layer has a thickness greater than 0.05 mm and a width of 0.5 mm to 2 mm.

[0012] Optionally, a distance between two non-intersecting conductive electrodes in the conductive electrode layer is 2 mm to 10 mm.

[0013] Optionally, the flexible electrode further comprises an adhesive layer, wherein:

[0014] The adhesive layer is disposed on the lower surface of the flexible base layer;

[0015] The adhesive layer is used to allow the flexible electrode to be adhered to the target water ingress detection area.

[0016] Optionally, the adhesive layer is coated with an adhesive selected from the group consisting of an acrylic adhesive, an epoxy adhesive, and a silicone adhesive.

[0017] Optionally, the coating thickness of the adhesive is 0.01 mm to 0.03 mm.

[0018] According to the second aspect of the present application, an embodiment of the present application further provides a water wading detection system, the water wading detection system comprising:

[0019] Flexible electrodes; and

[0020] The detection module is used to determine water inflow information according to the sensing signal output by the flexible electrode.

[0021] Optionally, the sensing signal is an analog signal, and the detection module includes: an analog-to-digital converter and a detection submodule, wherein:

[0022] The analog-to-digital converter is used to convert the analog signal to obtain a digital signal;

[0023] The detection submodule is used to determine water inflow information according to the digital signal.

[0024] Optionally, the analog-to-digital converter comprises at least two signal ports, each of which is connected to one of the flexible electrodes, wherein:

[0025] The signal port is used to receive the sensing signal output by the flexible electrode.

[0026] Optionally, the detection submodule is used to determine that the device is in a water inflow state if it is determined that the digital signal is smaller than a preset digital signal.

[0027] Optionally, the detection submodule is used to determine the water intake amount based on the digital signal.

[0028] Optionally, the detection submodule is used to determine a voltage value according to the digital signal, and determine the water intake amount according to the voltage value and a preset mapping relationship; the preset mapping relationship is a mapping relationship between the voltage value and the water intake amount.

[0029] Optionally, the detection submodule is used to determine a target flexible electrode among the flexible electrodes according to a preset digital signal and a digital signal corresponding to each of the flexible electrodes, and determine an area where the target flexible electrode is set as a water inflow area.

[0030] Optionally, the water wading detection system further includes: a host and an interaction unit, wherein:

[0031] The host is in communication with the detection module, and the host is in communication with the interaction unit;

[0032] The host is used to receive the water inflow information sent by the detection module and send the water inflow information to the interaction unit;

[0033] The interactive unit is used to display the water ingress information and issue a water ingress alarm.

[0034] According to the third aspect of the present application, an embodiment of the present application further provides a vehicle, the vehicle comprising the water wading detection system provided by the embodiment of the present application, and the electronic device provided by the embodiment of the present application.

[0035] Optionally, the flexible electrode is arranged inside the cabin of the vehicle and / or outside the cabin of the vehicle.

[0036] The embodiment of the present application relates to a flexible electrode, a water wading detection system and a vehicle, wherein the flexible electrode comprises a flexible substrate layer and a conductive electrode layer, wherein: the conductive electrode layer is arranged on the upper surface of the flexible substrate layer; the conductive electrode layer is used to output a sensing signal when water inlet is turned on. The conductive electrode layer is arranged on the upper surface of the flexible substrate layer, so that the flexible electrode is flat and layered, that is, it has a smaller size in the normal direction of the water inlet detection surface. By setting a flat and layered flexible electrode, it is used to output a sensing signal when water inlet is turned on. The flexible electrode occupies less space than the existing cable sensing assembly, which helps to improve the convenience of the arrangement of the water wading detection system and reduce the complexity of realizing water inlet detection. The water wading detection system is used to output a sensing signal when water inlet is turned on by setting a flat and layered flexible electrode. The detection module determines the water wading information according to the sensing signal output by the flexible electrode; water wading detection can be realized only by the flexible electrode and the detection module, avoiding the wiring and cable fixing problems caused by using the cable sensing assembly and the controller for water wading detection, and reducing the complexity of realizing water wading detection.

[0037] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0039] Figure 1 A schematic diagram of the structure of a flexible electrode provided in an embodiment of the present application;

[0040] Figure 2 A schematic diagram of the structure of a water wading detection system provided in an embodiment of the present application;

[0041] Figure 3 A schematic diagram of the structure of a water wading detection system provided in an embodiment of the present application;

[0042] Figure 4 A schematic diagram of a circuit structure of a water wading detection system provided in an embodiment of the present application;

[0043] Figure 5 A schematic diagram of the structure of a water wading detection system provided in an embodiment of the present application;

[0044] Figure 6 A schematic diagram of a first embodiment of a water ingress detection method provided in an embodiment of the present application;

[0045] Figure 7 A schematic flow chart of a second embodiment of the water ingress detection method provided in an embodiment of the present application;

[0046] Figure 8 A schematic flow chart of a third embodiment of the water ingress detection method provided in an embodiment of the present application;

[0047] Fig. 9 A schematic diagram of providing a flexible electrode in a vehicle according to an embodiment of the present application;

[0048] Fig.10 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0050] See also Figure 1 , Figure 1 A schematic diagram of the structure of a flexible electrode provided in an embodiment of the present application. The present application provides a flexible electrode, the flexible electrode comprising a flexible substrate layer and a conductive electrode layer, wherein:

[0051] The conductive electrode layer is disposed on the upper surface of the flexible base layer;

[0052] At least two mutually non-intersecting conductive electrodes are arranged in the conductive electrode layer, and a sensing signal is output when two of the conductive electrodes are connected.

[0053] Specifically, the flexible substrate layer is made of a material that is resistant to high temperatures and has good bending properties, such as polyimide (PI), polyethylene naphthalate (PEN), etc. This can increase the structural strength and durability of the flexible electrode. At least two non-intersecting conductive electrodes are arranged in the conductive electrode layer on the upper surface of the flexible substrate layer, and a sensing signal is output when two of the conductive electrodes are connected.

[0054] Specifically, the conductive electrode is a conductive ink electrode; the conductive ink includes one of silver-based conductive ink and graphene-based conductive ink.

[0055] It is understandable that silver-based conductive inks and graphene-based conductive inks have higher stability and are more stable than metal cables in harsh environments, thereby increasing the working time of flexible electrodes.

[0056] It should be noted that the conductive electrode layer is arranged on the upper surface of the flexible base layer, so that the flexible electrode is in a flat layer shape. By setting a flat layer of flexible electrode, a sensing signal is output when two conductive electrodes in the conductive electrode layer are connected. The flexible electrode is smaller in size than the existing cable sensing component, which helps to improve the convenience of the layout of the water wading detection system and reduce the complexity of realizing water ingress detection.

[0057] Specifically, the thickness of the flexible substrate layer is greater than 0.1 mm, and the width is 4 mm to 18 mm.

[0058] It should be noted that the thickness of the flexible base layer is greater than 0.1 mm to increase the structural strength and durability of the flexible base layer so that the flexible base can meet the needs of complex use environments. The width of the flexible base layer is 4 mm to 18 mm, which is set according to the width and spacing of the two conductive electrodes to be set. After the two conductive electrodes are printed on the flexible base layer according to the width and spacing, a certain width should be reserved on both sides of the flexible base layer.

[0059] Specifically, each conductive electrode in the conductive electrode layer has a thickness greater than 0.05 mm and a width of 0.5 mm to 2 mm.

[0060] It should be noted that the thickness of each conductive electrode is greater than 0.05 mm to ensure the stability of the conductive electrode during use. The width of each conductive electrode is 0.5 mm to 2 mm. Since each conductive electrode needs to be connected to the pre-detection module, within this width range, each conductive electrode is ensured to have sufficient connection width to the detection module, which is conducive to improving the stability of the connection.

[0061] Specifically, the distance between two mutually non-intersecting conductive electrodes in the conductive electrode layer is 2 mm to 10 mm.

[0062] It should be noted that the spacing between the conductive electrodes is related to the water ingress detection sensitivity. The smaller the spacing, the greater the water ingress detection sensitivity. However, too small a spacing may lead to false touches. Therefore, the spacing between the two non-intersecting conductive electrodes is 2mm to 10mm, which can avoid false touches while ensuring the water ingress detection sensitivity.

[0063] Preferably, the thickness of the flexible substrate layer is 0.15 mm and the width is 4 mm, the thickness of each conductive electrode in the conductive electrode layer is 0.06 mm and the width is 0.5 mm, and the spacing between two non-intersecting conductive electrodes in the conductive electrode layer is 2 mm. This arrangement allows the flexible electrode to meet the requirements of structural strength, durability, stability, and avoid false touch problems under the conditions of ensuring the sensitivity of water ingress detection, while minimizing the volume as much as possible. A smaller volume helps to improve the convenience of the layout of the water wading detection system and reduce the complexity of realizing water ingress detection.

[0064] Specifically, Figure 1 As shown, the flexible electrode further includes an adhesive layer, wherein:

[0065] The adhesive layer is disposed on the lower surface of the flexible base layer;

[0066] The adhesive layer is used to allow the flexible electrode to be adhered to the target water ingress detection area.

[0067] The flexible electrode includes an adhesive layer, a flexible substrate layer, and a conductive electrode layer. The flexible electrode is attached to the target water ingress detection area. When water ingress occurs in the target water ingress detection area, the conduction resistance between the two conductive electrodes of the flexible electrode arranged in the area is reduced, and the output sensing signal of the flexible electrode is output.

[0068] It should be noted that the adhesive layer allows the flexible electrode to be adhered to the target water inlet detection area, which can improve the convenience of setting the flexible electrode.

[0069] Specifically, the adhesive layer is coated with an adhesive selected from the group consisting of an acrylic adhesive, an epoxy adhesive, and a silicone adhesive.

[0070] The adhesive is coated at a thickness of 0.01 mm to 0.03 mm.

[0071] Since the flexible electrode is used for water ingress detection, an adhesive with good waterproof performance, such as an acrylic adhesive, an epoxy adhesive, or a silicone adhesive, is used. At the same time, the coating thickness of the adhesive is 0.01mm to 0.03mm to meet the pasting requirements, which can reduce the risk of the flexible electrode falling off after being pasted to the target water ingress detection area.

[0072] This application provides a water wading detection system, please refer to Figure 2 , Figure 2 A schematic diagram of the structure of a water wading detection system provided in an embodiment of the present application.

[0073] The water wading detection system includes: a flexible electrode and a detection module, wherein:

[0074] The flexible electrode is used to output a sensing signal to the detection module when the water inlet is open;

[0075] The detection module is used to determine water inflow information according to the sensing signal output by the flexible electrode.

[0076] In the specific implementation, the water wading detection system is applied to vehicles. In order to detect water ingress in multiple areas in the cabin, flexible electrodes are pasted on parts of the vehicle that are prone to water ingress, such as seams and holes. Flexible electrodes that are not connected to each other are pasted on different monitoring areas to reflect the corresponding water ingress areas. The detection module can determine that the vehicle is in a water ingress state based on the sensor signal output by the received flexible electrode, and then determine the water ingress information such as the amount of water ingress and the water ingress area of ​​the vehicle.

[0077] In the water detection system of this embodiment, the flexible electrode is used to output a sensing signal to the detection module when water is flowing; the flexible electrode is in a flat layer; the detection module is used to determine the water inflow information according to the sensing signal output by the flexible electrode. Water inflow detection can be realized only by the flexible electrode and the detection module, avoiding the wiring and cable fixing problems caused by using a cable sensing component and a controller for water inflow detection, and reducing the complexity of realizing water inflow detection.

[0078] See also Figure 3 , Figure 3 A schematic diagram of a water wading detection system provided in an embodiment of the present application. The sensing signal is an analog signal, and the detection module includes: an analog-to-digital converter and a detection submodule, wherein:

[0079] An analog-to-digital converter, used for converting the analog signal to obtain a digital signal;

[0080] The detection submodule is used to determine water inflow information according to the digital signal.

[0081] Specifically, after the detection module receives the sensing signal output by the flexible electrode, the sensing signal is an analog signal. The analog signal is input into the analog-to-digital converter for conversion to obtain a digital signal corresponding to the sensing signal, and then the digital signal is input into the detection sub-module, and the detection sub-module obtains water inflow information based on the digital signal.

[0082] It should be noted that the water wading detection system converts the analog signal output by the flexible electrode through an analog-to-digital converter to obtain a digital signal; determines the water ingress information based on the digital signal through the detection sub-module; and implements water ingress detection through flexible electrodes, analog-to-digital converters and detection sub-modules, thereby avoiding the wiring and cable fixing problems caused by using cable sensor components and controllers for water ingress detection, and reducing the complexity of implementing water ingress detection.

[0083] Specifically, the analog-to-digital converter includes at least two signal ports, each of which is connected to one of the flexible electrodes, wherein:

[0084] The signal port is used to receive the sensing signal output by the flexible electrode.

[0085] Specifically, the sensing signal output by the flexible electrode is an analog signal, and the analog-to-digital converter is used to convert the analog signal received by each of the signal ports to obtain a digital signal corresponding to the flexible electrode.

[0086] For example, Figure 4 As shown, Figure 4 The schematic diagram of a circuit for a water wading detection system is shown in Figure 1. The water wading detection system includes the 0th to the 1st flexible electrodes, each of which corresponds to a contact point pair, a power supply V1, a voltage signal acquisition pull-up resistor R0, and an analog-to-digital converter input voltage The analog-to-digital converter outputs a digital signal, a detection submodule MCU, and a water inlet information transmission module. The analog-to-digital converter includes five signal ports, one of which is connected to one of the flexible electrodes, and the analog-to-digital converter converts the analog signal received by each signal port to obtain a digital signal corresponding to the corresponding flexible electrode.

[0087] It should be noted that the analog-to-digital converter includes at least two signal ports, one of which is connected to a flexible electrode, so that the analog-to-digital converter can simultaneously process analog signals output by multiple flexible electrodes, avoiding one flexible electrode corresponding to one analog-to-digital converter, thereby reducing the number of analog-to-digital converters used and the complexity of implementing water ingress detection. At the same time, since the system uses the aforementioned flexible electrode, which has a layered structure and a small normal dimension on the water ingress detection horizontal plane, the integration of multiple signal ports will not increase the volume of the analog-to-digital converter.

[0088] Specifically, the detection submodule is used to determine that the device is in a water inflow state if it is determined that the digital signal is smaller than a preset digital signal.

[0089] The analog signal is an analog voltage signal, the corresponding digital signal is a digital voltage signal, and the preset digital signal is a preset voltage threshold; the detection submodule compares the digital voltage signal with the preset voltage threshold, and if it is determined that the digital voltage signal is less than the preset voltage threshold, it is determined that the target water ingress detection area where the flexible electrode is attached is in a water ingress state. For example, Figure 4 As shown, Figure 4 The schematic diagram of a circuit for a water wading detection system is shown in Figure 1. The water wading detection system includes the 0th to the 1st flexible electrodes, each of which corresponds to a contact point pair, a power supply V1, a voltage signal acquisition pull-up resistor R0, and an analog-to-digital converter input voltage The analog-to-digital converter outputs a digital signal, the detection submodule MCU, and the water inflow information transmission module. For the i-th flexible electrode detection circuit, the electrode conduction resistance The voltage divider value As an analog signal output, the detection module first converts the analog signal through an analog-to-digital converter to obtain a digital signal, and the detection submodule then determines that the target water inlet detection area where the flexible electrode is pasted is in a water inlet state based on the digital signal.

[0090] The analog-to-digital converter is a multi-channel analog-to-digital converter, and may also include multiple single-channel analog-to-digital converters. The i-th analog-to-digital converter sampling channel is connected to the i-th output detection voltage of the signal detection submodule through a wire, and the configuration signal of the detection submodule is received to sample a specific channel and output a digitally quantized voltage signal.

[0091] The detection submodule sends a polling sampling instruction of the detection voltage to the analog-to-digital converter through wired communication protocols such as SPI and I2C, and receives the digital signal output sampled by the analog-to-digital converter. Determine whether water has entered the area where the i-th flexible electrode is located. When the water inflow state of the i-th water inflow detection area changes (i.e., from a non-water inflow state to a water inflow state, and from a water inflow state to a non-water inflow state), the detection submodule transmits the water inflow state information and the corresponding area information to the host.

[0092] Specifically, the detection submodule is used to determine the water intake amount according to the digital signal.

[0093] Among them, the digital signal is a digital voltage signal, and the detection submodule determines the water inflow amount in the target water inflow detection area where the flexible electrode is pasted according to the mapping relationship between the preset voltage and the water inflow amount and the digital voltage signal.

[0094] Specifically, the detection submodule is used to determine the voltage value according to the digital signal, and determine the water intake amount according to the voltage value and a preset mapping relationship; the preset mapping relationship is a mapping relationship between the voltage value and the water intake amount.

[0095] The digital signal is a digital voltage signal, and the detection submodule determines the voltage value according to the digital voltage signal, and determines the water inflow amount in the target water inflow detection area where the flexible electrode is attached according to the preset mapping relationship between the voltage value and the water inflow amount. By searching and determining the water inflow amount through the preset mapping relationship, the efficiency of determining the water inflow amount can be improved.

[0096] Specifically, the detection submodule is used to determine a target flexible electrode among the flexible electrodes according to a preset digital signal and a digital signal corresponding to each of the flexible electrodes, and determine the area where the target flexible electrode is set as the water inflow area.

[0097] Among them, Figure 4 As shown, the wading detection system includes the 0th to the ith flexible electrodes, each flexible electrode corresponds to a contact point pair, and for the ith flexible electrode detection circuit, the electrode conduction resistance The voltage divider value As an analog signal output, the detection module first converts the analog signal through an analog-to-digital converter to obtain a digital signal, and the detection submodule then determines the area where the i-th flexible electrode is set as the water inlet area based on the digital signal.

[0098] The water wading detection system of this embodiment converts the analog signal through an analog-to-digital converter to obtain a digital signal; and determines the water ingress information of the vehicle according to the digital signal through a detection submodule. The water ingress detection is realized by a flexible electrode, an analog-to-digital converter and a detection submodule, and the water ingress state, water ingress amount, water ingress area and other water ingress information of the target water ingress detection area where the flexible electrode is attached can be determined simply and quickly according to the sensing signal output by the flexible electrode, thereby improving the efficiency and accuracy of water ingress detection.

[0099] See also Figure 5 , Figure 5 A schematic diagram of a water wading detection system provided in an embodiment of the present application. The water wading detection system further includes: a host and an interaction unit, wherein:

[0100] The host is in communication with the detection module, and the host is in communication with the interaction unit;

[0101] The host is used to receive the water inlet information and send the water inlet information to the interaction unit;

[0102] The interactive unit is used to display the water ingress information and issue a water ingress alarm.

[0103] Specifically, after determining the water ingress information, the detection module sends the water ingress information to the host. The host receives the water ingress information and sends the water ingress information to the interactive unit. The interactive unit displays the water ingress information and issues a water ingress alarm. It should be noted that the water ingress information can be transmitted to the host via a wired method (such as Lin line, CAN line, CANFD line, etc.) or a wireless method (such as Bluetooth, Zigbee, etc.). When the detection module and the host use wireless transmission of water ingress information, the wiring requirements of the signal transmission line are saved, and only the power supply problem of the detection module needs to be considered, which increases the flexibility of the deployment of the water detection system.

[0104] The water detection system of this embodiment receives water ingress information through the host and sends the water ingress information to the interactive unit; the interactive unit displays the water ingress information and issues a water ingress alarm, so that the user can determine the water ingress status, water ingress volume, water ingress area and other water ingress information in a timely manner, thereby improving the user experience.

[0105] See also Figure 6 , Figure 6 A schematic flow chart of a first embodiment of a water ingress detection method provided in an embodiment of the present application. The water ingress detection method is applied to a water wading detection system, the water wading detection system includes a flexible electrode and a detection module, and the method includes:

[0106] Step 101, generating and outputting a sensing signal to the detection module through the flexible electrode;

[0107] Step 102: determining water inflow information according to the sensing signal by the detection module.

[0108] In step 101 to step 102, the water wading detection system is applied to the vehicle. In order to detect water ingress in multiple areas in the vehicle cabin, flexible electrodes are pasted on parts of the vehicle that are prone to water ingress, such as seams and holes. Different monitoring areas are pasted with non-connected flexible electrodes to reflect the corresponding water ingress areas. The detection module can determine that the vehicle is in a water ingress state based on the sensor signal output by the received flexible electrode, and then determine the water ingress information such as the amount of water ingress and the water ingress area of ​​the vehicle.

[0109] The water wading detection system of this embodiment generates and outputs a sensing signal to the detection module when the flexible electrode detects water ingress into the vehicle; the detection module determines the water ingress information of the vehicle according to the sensing signal output by the flexible electrode. Water ingress detection can be achieved by setting a flat layered flexible electrode and a detection module, avoiding the wiring and cable fixing problems caused by using a cable sensing component and a controller for water ingress detection, and reducing the complexity of implementing water ingress detection.

[0110] See also Figure 7 , Figure 7A schematic flow chart of a second embodiment of the water ingress detection method provided in an embodiment of the present application. The sensor signal is an analog signal, and the detection module includes: an analog-to-digital converter and a detection submodule. The water ingress information is determined according to the sensor signal by the detection module, including:

[0111] Step 1021, converting the analog signal through the analog-to-digital converter to obtain a digital signal;

[0112] Step 1022: Determine water inflow information according to the digital signal through the detection submodule.

[0113] In step 1021 to step 1022, after the detection module receives the sensor signal output by the flexible electrode, the sensor signal is an analog signal. The analog signal is input into the analog-to-digital converter for conversion to obtain a digital signal corresponding to the sensor signal, and then the digital signal is input into the detection sub-module, and the water inlet information is determined by the detection sub-module according to the digital signal.

[0114] Specifically, determining the water inflow information according to the digital signal includes:

[0115] Step 10221: If it is determined that the digital signal is less than the preset digital signal, it is determined that the device is in a water inflow state.

[0116] In this step, the analog signal is an analog voltage signal, the corresponding digital signal is a digital voltage signal, and the preset digital signal is a preset voltage threshold; the detection submodule compares the digital voltage signal with the preset voltage threshold, and if it is determined that the digital voltage signal is less than the preset voltage threshold, it is determined that the target water inlet detection area to which the flexible electrode is pasted is in a water inlet state.

[0117] Specifically, determining the water ingress information of the vehicle according to the digital signal includes:

[0118] Step 10222, determining the water intake amount according to the digital signal.

[0119] Specifically, step 10222 includes:

[0120] Step 102221, determining a voltage value according to the digital signal;

[0121] Step 102222, determining the water intake amount according to the voltage value and a preset mapping relationship; the preset mapping relationship is a mapping relationship between the voltage value and the water intake amount.

[0122] In step 102221 to step 102222, the digital signal is a digital voltage signal, and the detection submodule determines the voltage value according to the digital voltage signal, and determines the water inflow amount of the target water inflow detection area where the flexible electrode is attached according to the preset mapping relationship between the voltage value and the water inflow amount. By searching and determining the water inflow amount through the preset mapping relationship, the efficiency of determining the water inflow amount can be improved.

[0123] Specifically, determining the water ingress information of the vehicle according to the digital signal includes:

[0124] Step 10223, determining a target flexible electrode among the flexible electrodes according to a preset digital signal and a digital signal corresponding to each of the flexible electrodes;

[0125] Step 10224: determine the area where the target flexible electrode is set as the water inlet area.

[0126] In step 10223 to step 10224, the detection submodule determines the target flexible electrode in the flexible electrodes according to the preset digital signal and the digital signal corresponding to each flexible electrode, and determines the area where the target flexible electrode is set as the water inlet area. Exemplarily, the digital signal is a digital voltage signal, and the preset digital signal is a preset voltage threshold; 10 flexible electrodes numbered 0 to 9 are installed in the vehicle, and the detection submodule receives the digital voltage signal corresponding to each flexible electrode, and compares the digital voltage signal corresponding to each flexible electrode with the preset voltage threshold. If the digital voltage signal of the flexible electrode numbered 9 is less than the preset voltage threshold, the flexible electrode numbered 9 is determined to be the target flexible electrode, and the area where the flexible electrode numbered 9 is set is determined to be the water inlet area; if the digital voltage signals of the flexible electrodes numbered 3 and 9 are less than the preset voltage threshold, the flexible electrodes numbered 3 and 9 are determined to be the target flexible electrodes, and the area where the flexible electrodes numbered 3 and 9 are set is determined to be the water inlet area.

[0127] The water wading detection system of this embodiment converts the analog signal through an analog-to-digital converter to obtain a digital signal; and determines the water ingress information of the vehicle according to the digital signal through the detection submodule. The water ingress information such as the water ingress state, water ingress amount, and water ingress area of ​​the vehicle can be determined simply and quickly according to the sensor signal output by the flexible electrode, thereby reducing the complexity of realizing the vehicle water ingress detection function.

[0128] See also Figure 8 , Figure 8 The third embodiment of the water ingress detection method provided in the present application is a flow chart. The water ingress detection system further includes: a host and an interaction unit, and the method further includes:

[0129] Step 103, receiving the water inlet information through the host, and sending the water inlet information to the interaction unit;

[0130] Step 104: display the water ingress information through the interactive unit and issue a water ingress alarm.

[0131] In step 103 to step 104, after determining the water inlet information, the detection module sends the water inlet information to the host, and the host receives the water inlet information and sends the water inlet information to the interactive unit; the interactive unit displays the water inlet information and issues a water inlet alarm. It should be noted that the water inlet information can be transmitted to the host via a wired method (such as Lin line, CAN line, CANFD line, etc.) or a wireless method (such as Bluetooth, Zigbee, etc.). When the detection module and the host use wireless transmission of water inlet information, the wiring requirements of the signal transmission line are saved, and only the power supply problem of the detection module needs to be considered, which increases the flexibility of the deployment of the water detection system.

[0132] The water intrusion detection system of this embodiment receives water intrusion information through the host and sends the water intrusion information to the interactive unit; through the interactive unit, the water intrusion information is displayed and a water intrusion alarm is issued, so that the user can timely determine the vehicle's water intrusion status, water intrusion amount, water intrusion area and other water intrusion information, thereby improving the user's experience.

[0133] Accordingly, the present application also provides a vehicle, see Fig. 9 , Fig. 9 A schematic diagram of a flexible electrode provided in a vehicle according to an embodiment of the present application. A flexible electrode is provided in the vehicle, and a water wading detection system; wherein the flexible electrode is arranged in the cabin of the vehicle and / or outside the cabin of the vehicle. When water enters the interior of the vehicle, the flexible electrode arranged in the cabin of the vehicle outputs a sensing signal when two non-intersecting conductive electrodes in the flexible electrode are turned on, and the water wading detection system can determine the water ingress information of the vehicle. When the vehicle wades, the flexible electrode arranged outside the cabin of the vehicle outputs a sensing signal when two non-intersecting conductive electrodes in the flexible electrode are turned on, and the water wading detection system can determine the water wading information of the vehicle.

[0134] See also Fig.10 , Fig.10 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle 1100 includes a processor 1101 having one or more processing cores, a memory 1102 having one or more computer-readable storage media, and a computer program stored in the memory 1102 and executable on the processor. The processor 1101 is electrically connected to the memory 1102. It will be understood by those skilled in the art that the vehicle structure shown in the figure does not constitute a limitation on the vehicle, and may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0135] The processor 1101 is the control center of the vehicle 1100, and uses various interfaces and lines to connect various parts of the entire vehicle 1100. By running or loading software programs and / or units stored in the memory 1102, and calling data stored in the memory 1102, it executes various functions of the vehicle 1100 and processes data, thereby monitoring the vehicle 1100 as a whole. The processor 1101 can be a processor CPU, a graphics processor GPU, a network processor (Network Processor, NP), etc., and can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application.

[0136] In an embodiment of the present application, the processor 1101 in the vehicle 1100 will load the computer program corresponding to the process of one or more applications into the memory 1102 according to the following steps, and the processor 1101 will run the application stored in the memory 1102 to execute the water ingress detection method.

[0137] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0138] Optional, such as Fig.10 As shown, the vehicle 1100 further includes: a touch screen 1103, a radio frequency circuit 1104, an audio circuit 1105, an input unit 1106, and a power supply 1107. The processor 1101 is electrically connected to the touch screen 1103, the radio frequency circuit 1104, the audio circuit 1105, the input unit 1106, and the power supply 1107, respectively. Those skilled in the art will appreciate that Fig.10 The vehicle structure shown in the figure does not constitute a limitation on the vehicle, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0139] The touch display screen 1103 can be used to display a graphical user interface and receive operation instructions generated by the user acting on the graphical user interface. The touch display screen 1103 may include a display panel and a touch panel. Among them, the display panel can be used to display information input by the user or information provided to the user and various graphical user interfaces of the vehicle, which can be composed of graphics, text, icons, videos and any combination thereof. Optionally, the display panel can be configured in the form of a liquid crystal display (LCD, Liquid Crystal Display), an organic light-emitting diode (OLED, Organic Light-Emitting Diode) and the like. The touch panel can be used to collect the user's touch operation on or near it (such as the user uses any suitable object or accessory such as a finger, a stylus, etc. on the touch panel or near the touch panel), and generate corresponding operation instructions, and the operation instructions execute the corresponding program. Optionally, the touch panel may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the touch point coordinates, and then sends it to the processor 1101, and can receive the command sent by the processor 1101 and execute it. The touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it is transmitted to the processor 1101 to determine the type of touch event, and then the processor 1101 provides a corresponding visual output on the display panel according to the type of touch event. In an embodiment of the present application, the touch panel and the display panel can be integrated into the touch display screen 1103 to realize the input and output functions. However, in some embodiments, the touch panel and the touch panel can be used as two independent components to realize the input and output functions. That is, the touch display screen 1103 can also be used as a part of the input unit 1106 to realize the input function.

[0140] The RF circuit 1104 may be used to send and receive RF signals to establish wireless communication with network devices or other vehicles through wireless communication, and to send and receive signals with network devices or other vehicles.

[0141] The audio circuit 1105 can be used to provide an audio interface between the user and the vehicle through a speaker and a microphone. The audio circuit 1105 can transmit the electrical signal converted from the received audio data to the speaker, which is converted into a sound signal for output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 1105 and converted into audio data, and then the audio data is output to the processor 1101 for processing, and then sent to another vehicle through the radio frequency circuit 1104, or the audio data is output to the memory 1102 for further processing. The audio circuit 1105 may also include an earphone jack to provide communication between an external headset and the vehicle.

[0142] The input unit 1106 may be used to receive input numbers, character information or user feature information (such as fingerprint, iris, facial information, etc.), and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.

[0143] The power supply 1107 is used to supply power to various components of the vehicle 1100. Optionally, the power supply 1107 can be logically connected to the processor 1101 through a power management device, so that the power management device can manage charging, discharging, and power consumption. The power supply 1107 can also include one or more DC or AC power supplies, recharging devices, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0144] although Fig.10 Not shown, the vehicle 1100 may also include a camera, a sensor, a wireless fidelity module, a Bluetooth module, etc., which will not be described in detail here.

[0145] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0146] Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by a computer program, or by controlling related hardware through a computer program. The computer program may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0147] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0148] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0149] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0150] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A flexible electrode, characterized in that: The flexible electrode comprises a flexible substrate layer and a conductive electrode layer, wherein: The conductive electrode layer is disposed on the upper surface of the flexible base layer; At least two mutually non-intersecting conductive electrodes are arranged in the conductive electrode layer, and a sensing signal is output when two of the conductive electrodes are connected.

2. The flexible electrode according to claim 1, characterized in that: The thickness of the flexible base layer is greater than 0.1 mm, and the width is 4 mm to 18 mm.

3. The flexible electrode according to claim 1, characterized in that: The conductive electrode is a conductive ink electrode.

4. The flexible electrode according to claim 3, characterized in that: The conductive ink includes one of a silver-based conductive ink and a graphene-based conductive ink.

5. The flexible electrode according to claim 1, characterized in that: Each conductive electrode in the conductive electrode layer has a thickness greater than 0.05 mm and a width of 0.5 mm to 2 mm.

6. The flexible electrode according to claim 1, characterized in that: The distance between two mutually non-intersecting conductive electrodes in the conductive electrode layer is 2 mm to 10 mm.

7. The flexible electrode according to claim 1, characterized in that: The flexible electrode further comprises an adhesive layer, wherein: The adhesive layer is disposed on the lower surface of the flexible base layer; The adhesive layer is used to allow the flexible electrode to be adhered to the target water ingress detection area.

8. The flexible electrode according to claim 7, characterized in that: The adhesive layer is coated with an adhesive selected from the group consisting of an acrylic adhesive, an epoxy adhesive, and a silicone adhesive.

9. The flexible electrode according to claim 8, characterized in that: The adhesive is coated at a thickness of 0.01 mm to 0.03 mm.

10. A water wading detection system, characterized in that: The water wading detection system comprises: A flexible electrode as described in any one of claims 1 to 9; and The detection module is used to determine water wading information according to the sensing signal output by the flexible electrode.

11. The water wading detection system according to claim 10, characterized in that: The sensing signal is an analog signal, and the detection module includes: an analog-to-digital converter and a detection submodule, wherein: The analog-to-digital converter is used to convert the analog signal to obtain a digital signal; The detection submodule is used to determine water-related information according to the digital signal.

12. The water wading detection system according to claim 11, characterized in that: The analog-to-digital converter includes at least two signal ports, each of which is connected to one of the flexible electrodes, wherein: The signal port is used to receive the sensing signal output by the flexible electrode.

13. The water wading detection system according to claim 11, characterized in that: The detection submodule is used to determine that the state is in wading if it is determined that the digital signal is smaller than a preset digital signal.

14. The water wading detection system according to claim 11, characterized in that: The water-related information includes the amount of water inflow, and the detection submodule is used to determine the amount of water inflow according to the digital signal.

15. The water wading detection system according to claim 14, characterized in that: The detection submodule is used to determine the voltage value according to the digital signal, and determine the water intake according to the voltage value and a preset mapping relationship; the preset mapping relationship is a mapping relationship between the voltage value and the water intake.

16. The water wading detection system according to claim 11, characterized in that: The water-related information includes a water inflow area. The detection submodule is used to determine a target flexible electrode among the flexible electrodes according to a preset digital signal and a digital signal corresponding to each of the flexible electrodes, and determine the area where the target flexible electrode is set as the water inflow area.

17. The water wading detection system according to any one of claims 10 to 16, characterized in that: The water wading detection system further includes: a host and an interaction unit, wherein: The host is communicatively connected to the detection module, and the host is communicatively connected to the interaction unit; The host is used to receive the water-related information sent by the detection module and send the water-related information to the interaction unit; The interactive unit is used to display and / or warn the water-related information.

18. A vehicle, characterized in that: include: A flexible electrode as described in any one of claims 1-8, and a water wading detection system as described in any one of claims 10-17.

19. The vehicle according to claim 18, characterized in that The flexible electrode is arranged inside the cabin of the vehicle and / or outside the cabin of the vehicle.

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