Wearable device

Abstract

The embodiment of the invention provides wearable equipment. The wearable equipment comprises trousers; the sensor assembly is fixed on the trousers, the sensor assembly comprises at least one circumferential strain sensor, and the circumferential strain sensor extends in the circumferential direction of trouser legs of the trousers so as to measure the circumferential size of the legs of a user.

Description

A wearable device Technical Field

[0001] This specification relates to the field of wearable devices, and in particular to a wearable device. Background Art

[0002] With the development of society, people are paying more attention to their body shape and posture than just their health. Leg size (such as leg circumference) is a particularly important aspect of body shape and posture. Therefore, how to more conveniently monitor leg circumference during fitness, weight loss, and rehabilitation is a pressing technical issue in this field.

[0003] Summary of the Invention

[0004] One of the embodiments of the present specification provides a wearable device comprising: pants; and a sensor assembly fixed to the pants, wherein the sensor assembly comprises at least one circumferential strain sensor, which extends circumferentially along the trouser leg of the pants to measure the circumferential size of the user's leg.

[0005] In some embodiments, the at least one circumferential strain sensor includes: a first strain sensor, which is located in the thigh area of ​​the trouser leg and extends circumferentially along the thigh area to measure the circumferential size of the user's thigh; and a second strain sensor, which is located in the calf area of ​​the trouser leg and extends circumferentially along the calf area to measure the circumferential size of the user's calf.

[0006] In some embodiments, the at least one circumferential strain sensor includes a plurality of the first strain sensors, which are arranged at intervals along the length direction of the trouser leg; and / or, the at least one circumferential strain sensor includes a plurality of the second strain sensors, which are arranged at intervals along the length direction of the trouser leg.

[0007] In some embodiments, the at least one circumferential strain sensor includes a third strain sensor, wherein the third strain sensor is located in a waist region of the pants and extends along a circumference of the waist region to measure a circumferential dimension of the user's waist.

[0008] In some embodiments, the sensor assembly further comprises at least one longitudinal strain sensor, which extends along the length of the trouser leg, and at least a portion of the longitudinal strain sensor is located in the thigh region and the calf region.

[0009] In some embodiments, the longitudinal strain sensor and the circumferential strain sensor are located on the same bearing layer, and the longitudinal strain sensor and the circumferential strain sensor are arranged adjacent to each other.

[0010] In some embodiments, first gaps are formed at both ends of the first strain sensor, second gaps are formed at both ends of the second strain sensor, and the longitudinal strain sensor passes through the first gap and the second gap.

[0011] In some embodiments, the trousers include at least two load-bearing layers stacked along a thickness direction of the trousers, and the circumferential strain sensor and the longitudinal strain sensor are provided on different load-bearing layers.

[0012] In some embodiments, the number of the longitudinal strain sensors is plural, and the plurality of longitudinal strain sensors are spaced apart along the circumference of the trouser leg.

[0013] In some embodiments, at least one of the longitudinal strain sensors is located at least in an area of ​​the trouser leg facing toward or away from the other trouser leg.

[0014] In some embodiments, the elastic coefficient of the calf region of the trouser leg where the second strain sensor is located is greater than the elastic coefficient of the thigh region of the trouser leg where the first strain sensor is located.

[0015] In some embodiments, the sensor assembly also includes a first electrode module integrated on the pants, the first electrode module includes at least two first electrodes in contact with the user's skin, the first electrodes are in contact with the user's skin, and the at least two first electrodes are arranged at intervals along the muscle fiber direction of the same muscle of the user's leg; the first electrode module is used to collect the electromyographic signals of the muscles of the user's leg.

[0016] In some embodiments, at least one of the circumferential strain sensors is arranged between at least two of the first electrodes of the first electrode module.

[0017] In some embodiments, the wearable device further comprises a processing circuit, which is integrated into the waist region of the pants; the processing circuit is configured to process or send the circumferential dimension of the user's leg.

[0018] One of the embodiments of this specification provides a wearable device, comprising: pants; and a sensor assembly fixed to the pants, the sensor assembly comprising a second electrode module, the second electrode module comprising at least one second electrode, the at least one second electrode extending circumferentially along the trouser legs of the pants, the second electrode module being used to measure the circumferential size of the user's legs.

[0019] In some embodiments, the second electrode module includes at least two second electrodes, which are in contact with the user's skin, and at least two second electrodes are arranged at intervals along the muscle fiber direction of the same muscle of the user's leg; the second electrode module is also used to collect electromyographic signals of the muscles of the user's leg.

[0020] In some embodiments, each of the second electrodes is provided with a first signal lead-out terminal, a second signal lead-out terminal and a third signal lead-out terminal, the first signal lead-out terminal and the second signal lead-out terminal are used to lead out signals of the measured circumferential dimensions, the first signal lead-out terminal and the second signal lead-out terminal are respectively located at the two ends of the extension direction of the second electrode, and the third signal lead-out terminal is used to lead out an electric potential signal.

[0021] In some embodiments, the second electrode is a unidirectional deformation electrode or a unidirectional strain-sensitive electrode configured for circumferential deformation of the trouser leg.

[0022] In some embodiments, the sensor module further includes a third electrode module, wherein the third electrode module includes at least one third electrode, and the third electrode is a unidirectional deformation electrode or a unidirectional strain sensitive electrode arranged in the length direction of the trouser leg.

[0023] One of the embodiments of the present specification provides a wearable device comprising: pants; a sensor assembly fixed to the pants, the sensor assembly comprising at least one circumferential strain sensor, the circumferential strain sensor extending along the circumference of the trouser legs to measure the circumferential dimensions of the user's legs; and a processor, the processor being configured to: obtain the circumferential dimensions of the user's legs and generate circumference information of the user's legs.

[0024] In some embodiments, the circumference information includes circumference change information within a first preset time period; obtaining the circumferential size of the user's leg and generating the circumference information of the user's leg includes: monitoring the circumferential size of the user's leg within the first preset time period and generating the circumference change information.

[0025] In some embodiments, the sensor assembly further comprises at least one longitudinal strain sensor extending along the length of the trouser leg to at least detect the shape of the user's leg; the processor is configured to generate a model of the user's leg based on the shape and circumferential dimension of the user's leg.

[0026] In some embodiments, the processor is configured to generate a first training instruction suggestion based on the circumferential dimension of the user's leg.

[0027] In some embodiments, the wearable device also includes a first electrode module integrated on the pants, the first electrode module includes at least two first electrodes, and the at least two first electrodes are arranged at intervals along the muscle fiber direction of the same muscle of the user's leg; the first electrode module is used to collect the electromyographic signals of the muscles of the user's leg; the processor is used to: generate a second training guidance suggestion based on the circumference change information of the user's leg and the electromyographic signals.

[0028] In some embodiments, the processing circuit is configured to: determine posture information reflecting the posture of the user's leg based on the shape and / or the circumferential size of the user's leg; the posture information includes the current posture of the user's leg and the length of time the user's leg is in the current posture.

[0029] In some embodiments, the posture includes at least a preset bad posture, and the posture information reflecting the posture of the user's legs is determined based on the shape and / or the circumferential size of the user's legs, including: in response to the current posture of the user's legs being the preset bad posture, based on the shape and / or the circumferential size of the user's legs, determining the length of time the user's legs are in the preset bad posture; and generating correction suggestions based on the length of time the user's legs are in the preset bad posture.

[0030] In some embodiments, the posture includes at least a walking posture and a running posture; the processing circuit is configured to: in response to the current posture of the user's legs being the walking posture or the running posture, determine at least one of the user's step count, stride length, and cadence based on the shape and / or the circumferential size of the user's legs.

[0031] In some embodiments, the posture includes at least an exercise posture; the processing circuit is configured to: in response to the current posture of the user's legs being the exercise posture, count the exercise movements of the user's legs based on the shape and / or the circumferential size of the user's legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] This specification will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, like numbers represent like structures, wherein:

[0033] This specification will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, like numbers represent like structures, wherein:

[0034] FIG1 is a schematic diagram of a leg circumference monitoring system according to some embodiments of the present specification;

[0035] FIG2A is an exemplary block diagram of a wearable device according to some embodiments of the present specification;

[0036] FIG2B is an exemplary block diagram of a wearable device according to some embodiments of the present specification;

[0037] FIG3 is a schematic structural diagram of a wearable device according to some embodiments of this specification;

[0038] FIG4 is a schematic structural diagram of a wearable device according to other embodiments of this specification;

[0039] FIG5 is a schematic diagram of the structure of a wearable device according to some other embodiments of this specification;

[0040] FIG6 is a schematic structural diagram of a wearable device according to some further embodiments of this specification;

[0041] FIG7 is a schematic structural diagram of a wearable device according to some other embodiments of this specification;

[0042] FIG8 is a schematic structural diagram of a wearable device according to some other embodiments of this specification;

[0043] FIG9 is a schematic structural diagram of a first electrode module according to some embodiments of this specification;

[0044] FIG10 is a schematic structural diagram of a wearable device according to some embodiments of this specification;

[0045] FIG11 is a schematic structural diagram of a second electrode module according to some embodiments of the present disclosure;

[0046] FIG12 is a block diagram of a processor of a wearable device according to some embodiments of this specification. DETAILED DESCRIPTION

[0047] To more clearly illustrate the technical solutions of the embodiments of this specification, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described below are merely examples or embodiments of this specification. Those skilled in the art can apply this specification to other similar scenarios based on these drawings without inventive effort. Unless otherwise apparent from the context or otherwise noted, the same reference numerals in the figures represent the same structure or operation.

[0048] It should be understood that the terms "system," "device," "unit," and / or "module" used herein are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0049] As used in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not refer to the singular but also include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0050] Flowcharts are used throughout this specification to illustrate the operations performed by systems according to embodiments of this specification. It should be understood that preceding or following operations do not necessarily need to be performed in exact order. Instead, the steps may be processed in reverse order or simultaneously. Furthermore, other operations may be added to these processes, or one or more operations may be removed from these processes.

[0051] FIG1 is a schematic diagram of a leg circumference monitoring system according to some embodiments of the present specification. Referring to FIG1 , in some embodiments, a leg circumference monitoring system 1000 (hereinafter referred to as system 1000) may include a processing device 1100, a network 1200, a storage device 1300, a terminal device 1400, and a wearable device 1500. The various components in system 1000 can be connected in a variety of ways. For example, the wearable device 1500 can be connected to the storage device 1300 and / or the processing device 1100 via the network 1200, or the wearable device 1500 can be directly connected to the storage device 1300 and / or the processing device 1100. For another example, the storage device 1300 can be directly connected to the processing device 1100 or connected via the network 1200. For another example, the terminal device 1400 can be connected to the storage device 1300 and / or the processing device 1100 via the network 1200, or the terminal device 1400 can be directly connected to the storage device 1300 and / or the processing device 1100.

[0052] In some embodiments, system 1000 can implement the devices disclosed herein to measure the circumferential dimensions of a user's legs and determine the circumference information of the user's legs. For example, the sensor assembly of wearable device 1500 can measure the circumferential dimensions of the user's legs. For another example, processing device 1100 can process the circumferential dimensions of the user's legs to determine the circumference information of the user's legs.

[0053] The processing device 1100 can process data and / or information obtained from the wearable device 1500, the storage device 1300, the terminal device 1400, and / or other components of the system 1000. In some embodiments, the processing device 1100 can obtain the circumferential dimensions of the user's 1600 leg (e.g., thigh or calf) from any one or more of the wearable device 1500, the storage device 1300, and the terminal device 1400, and process the circumferential dimensions to generate the user's leg circumference information. In some embodiments, the processing device 1100 can retrieve pre-stored computer instructions from the storage device 1300 and execute the computer instructions to implement the leg circumference monitoring system described herein.

[0054] In some embodiments, processing device 1100 may be a single server or a server group. The server group may be centralized or distributed. In some embodiments, processing device 1100 may be local or remote. For example, processing device 1100 may access information and / or data from wearable device 1500, storage device 1300, and / or terminal device 1400 via network 1200. For another example, processing device 1100 may be directly connected to wearable device 1500, storage device 1300, and / or terminal device 1400 to access information and / or data. In some embodiments, processing device 1100 may be implemented on a cloud platform. For example, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an inter-cloud cloud, a multi-cloud, or any combination thereof.

[0055] The network 1200 can connect the various components of the system 1000 and / or connect the system 1000 with external resources. The network 1200 can enable communication between the various components of the system 1000 and with other parts outside the system 1000, thereby facilitating the exchange of data and / or information. For example, the processing device 1100 can obtain size information (such as circumferential size) from the wearable device 1500 and / or the storage device 1300 via the network 1200. For another example, the processing device 1100 can obtain user operation instructions from the terminal device 1400 via the network 120. Exemplary operation instructions may include, but are not limited to, setting user information (e.g., gender, age, height, weight, medical history, etc.), starting leg circumference measurement, etc.

[0056] In some embodiments, network 1200 can be any form of wired or wireless network, or any combination thereof. By way of example only, network 120 can include a cable network, a wired network, a fiber optic network, a telecommunications network, an intranet, the Internet, a local area network (LAN), a wide area network (WAN), a wireless local area network (WLAN), a metropolitan area network (MAN), a public switched telephone network (PSTN), a Bluetooth network, a ZigBee network, a near-field communication (NFC) network, or the like, or any combination thereof. In some embodiments, network 1200 can include at least one network access point, and at least one component of system 100 can connect to network 1200 via the access point to exchange data and / or information. For example, data such as the circumferential size of a user's leg, the circumferential size of a user's waist, electromyographic signals of muscles in the user's leg, and the shape of the user's leg can be transmitted via network 120.

[0057] The storage device 1300 can store data, instructions, and / or any other information. In some embodiments, the storage device 1300 can store data obtained from the wearable device 1500, the processing device 1100, and / or the terminal device 1400. For example, the storage device 1300 can store circumferential dimensions collected by the wearable device 1500. In some embodiments, the storage device 1300 can store data and / or instructions used by the processing device 1100 to execute or complete the exemplary methods described in this specification. In some embodiments, the storage device 1300 can include a large-capacity memory, a removable memory, a volatile read-write memory, a read-only memory (ROM), or the like, or any combination thereof. Exemplary large-capacity memories can include magnetic disks, optical disks, solid-state disks, or the like. In some embodiments, the storage device 1300 can be implemented on a cloud platform. By way of example only, the cloud platform can include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-layer cloud, or the like, or any combination thereof.

[0058] In some embodiments, the storage device 1300 can be connected to the network 1200 to communicate with at least one other component in the system 1000 (e.g., the wearable device 1500, the processing device 1100, and the terminal device 1400). At least one component in the system 1000 can access data, instructions, or other information stored in the storage device 1300 through the network 1200. In some embodiments, the storage device 1300 can be directly connected to or communicate with one or more components in the system 1000 (e.g., the wearable device 1500 and the terminal device 1400). In some embodiments, the storage device 1300 can be part of the wearable device 1500 and / or the processing device 1100.

[0059] The terminal device 1400 can receive, send, and / or display data. The received data may include data collected by the wearable device 15000, data stored by the storage device 1300, data generated by the processing device 1100, and the like. For example, the data received and / or displayed by the terminal device 1400 may include circumferential dimensions collected by the wearable device 1500, circumference information generated by processing the circumferential dimensions by the processing device 1100, and the like. The sent data may include user input data and instructions, and the like. For example, the terminal device 1400 may send an operation instruction input by the user to the wearable device 1500 via the network 1200 to control the wearable device 1500 to perform corresponding data collection.

[0060] In some embodiments, the terminal device 1400 may include a mobile device 1401, a tablet computer 1402, a laptop computer 1403, or any combination thereof. For example, the mobile device 1410 may include a mobile phone, a personal digital assistant (PDA), a medical mobile terminal, or any combination thereof. In some embodiments, the terminal device 1400 may include an input device (e.g., a keyboard, a touch screen), an output device (e.g., a display, a speaker), or the like. In some embodiments, the processing device 1100 may be part of the terminal device 1400.

[0061] The wearable device 1500 may be a device for collecting data from the user 1600. The data may refer to data of the legs of the user 1600. Exemplary data may include circumferential dimensions, leg shapes, electromyographic signals, and the like. In some embodiments, the wearable device 1500 may have an independent power supply, which may send the collected data to other components (e.g., processing device 1100, storage device 1300, terminal device 1400) via wired or wireless means (e.g., Bluetooth, WiFi, etc.). In some embodiments, one or more components on the system 1000 may be implemented on the wearable device 1500. For example, the wearable device 1500 may include a processing device 1100, a storage device 1300, and the like. For a detailed description of the structure of the wearable device 150, see Figures 2A-10 and their related descriptions.

[0062] User 1600 may be a user of wearable device 1500. For example, user 1600 may be a person concerned about the circumference of their legs, an athlete, a sports equipment tester, a patient requiring rehabilitation, etc. In some embodiments, user 1600 may issue a query request. For example, user 1600 may query the circumference information, circumference change information, posture information, training guidance suggestions, correction suggestions, etc. of their own legs. In some embodiments, the user may receive feedback from wearable device 1500 or terminal device 1400, such as query results (such as circumference information, circumference change information, posture information, etc.), suggestions (such as training guidance suggestions, correction suggestions, etc.), etc.

[0063] It should be noted that the above description of system 1000 is for illustration and purpose only and does not limit the scope of application of this specification. Those skilled in the art will be able to make various modifications and changes to system 1000 under the guidance of this specification. However, such modifications and changes will remain within the scope of this specification.

[0064] Figures 2A and 2B are exemplary block diagrams of a wearable device 2000 according to some embodiments of the present specification. As shown in Figure 2A, wearable device 2000 may include pants 2100 and a sensor assembly 2200 secured to pants 2100. Sensor assembly 2200 includes at least one circumferential strain sensor 2210 that extends along the circumference of a trouser leg of pants 2100 to measure the circumferential dimensions of the user's leg.

[0065] Pants 2100 can be of various lengths, such as shorts, cropped pants, cropped pants, or long pants. Specifically, the length of pants 2100 can be determined based on the specific location on the leg where the user needs to monitor the circumferential dimensions. For example, if the user only needs to monitor the circumferential dimensions of the thigh, pants 2100 can be shorts, cropped pants, or longer pants 2100 with the legs covering the thigh. For another example, if the user needs to monitor the circumferential dimensions of the calf, pants 2100 can be cropped pants or long pants. For another example, if the user needs to monitor the circumferential dimensions of the ankle, pants 2100 can be long pants. Pants 2100 can also serve as a carrier for components such as sensor assembly 2200. In some other embodiments, the pants 2100 can be replaced with other devices that can be worn on the legs, such as leg straps (e.g., full-leg straps, thigh straps, calf straps, etc.), leg sleeves (e.g., full-leg sleeves, thigh sleeves, calf sleeves, etc.), socks (e.g., calf socks, thigh socks, pantyhose, etc.), etc.

[0066] The sensor assembly 2200 is used to collect data about the user's legs. In some embodiments, the sensor assembly 2200 may include a strain sensor (such as the circumferential strain sensor 2210 and the longitudinal strain sensor 2220 in this specification, as shown in FIG2A ), and the sensor assembly 2200 uses the strain sensor to measure the circumferential dimensions of the user's legs (see FIG3-FIG8 and related descriptions). A strain sensor is a sensor that measures the deformation of an object. Since the strain sensor is fixed on the trousers 2100, when the user puts on the trousers 2100, the trousers 2100 themselves will be deformed, and the strain sensor can generate strain based on the deformation of the trousers 2100, thereby generating an electrical signal. In some embodiments, the strain sensor can be flexible and does not affect the fit of the trousers 2100 to the user's legs when the trousers 2100 are deformed. The strain sensor can be a capacitive strain sensor or a resistive strain sensor. It should be noted that each strain sensor (such as each first strain sensor 2211 / each second strain sensor 2212 / each third strain sensor 2213) can include multiple sensing modules, and the multiple sensing modules are arranged in sequence along the extension direction of the strain sensor. Each sensing module can generate strains of different sizes, thereby generating electrical signals of different sizes. For further examples of sensing modules, please refer to the relevant content about longitudinal strain sensor 2220 below. In other embodiments, the sensor assembly 2200 may include an electrode module (such as the second electrode module 2240 in this specification, as shown in Figure 2B), and the sensor assembly 2200 uses the electrode module to measure the user's leg size (see Figure 10 and its related description).

[0067] In some embodiments, the sensor assembly 2200 can be fixed to the inner surface of the pants 2100. In other embodiments, to prevent the sensor assembly 2200 from causing discomfort to the user, the sensor assembly 2200 can be fixed to the outer surface of the pants 2100. In still other embodiments, the pants 2100 can have an interlayer, and the sensor assembly 2200 can be fixed in the interlayer of the pants 2100, thereby ensuring both comfort and protection of the sensor assembly 2200. The sensor assembly 2200 can be fixed to the pants by gluing, weaving, or other methods.

[0068] When the sensor assembly 2200 includes a strain sensor, as shown in FIG2A , the sensor assembly 2200 may include a circumferential strain sensor 2210 extending along the circumference of the trouser leg of the pants 2100. In this specification, the circumference of the trouser leg is indicated by arrow A in FIG3-8 and FIG10 . When the user puts on the pants 2100, the circumference of the trouser leg is also approximately equal to the circumference of the user's leg. The circumferential strain sensor 2210 may be a band-like structure, and the band-like strain sensor may be configured to be arranged along the circumference of the user's leg (i.e., arranged around the user's leg). By arranging the circumferential strain sensor 2210 to extend along the circumference of the trouser leg, when the user puts on the pants 2100, the pants 2100 will deform along the circumference of the trouser leg (e.g., be stretched along the circumference), and the circumferential strain sensor 2210 can also generate strain along the circumference of the trouser leg, thereby measuring the circumferential dimension of the user's leg. It can be understood that during the wearing process, the circumferential strain sensor 2210 can measure continuously, measure at intervals (for example, once every preset time interval), or measure the circumferential size of the user's leg according to instructions to achieve the purpose of monitoring the user's leg circumference.

[0069] In some embodiments, the length of the circumferential strain sensor 2210 can be equal to the circumferential length of the trouser leg at which it is installed. In some embodiments, the length of the circumferential strain sensor 2210 can be less than the circumferential length of the trouser leg at which it is installed. For example, the length of the circumferential strain sensor 2210 can be 1 / 2, 1 / 3, 1 / 5, etc., of the circumferential length of the trouser leg at which it is installed.

[0070] FIG3 is a schematic diagram of the structure of the wearable device 2000 according to some embodiments of this specification. In some embodiments, as shown in FIG3 , the at least one circumferential strain sensor 2210 of the wearable device 2000 may include a first strain sensor 2211. The first strain sensor 2211 can be used to measure the circumferential size of the user's thigh. The first strain sensor 2211 is located in the thigh region 2110 of the trouser leg and extends along the circumference of the thigh region 2110 (i.e., the direction indicated by arrow A in FIG3 ) to measure the circumferential size of the user's thigh. By way of example only, the first strain sensor 2211 can be a band-like structure extending along the circumference of the thigh region 2110 of the trouser leg.

[0071] In some embodiments, the at least one circumferential strain sensor 2210 may include multiple first strain sensors 2211, each of which is spaced apart along the length of the trouser leg. For example, as shown in FIG4 , the multiple first strain sensors 2211 may be spaced apart along the length of the trouser leg, in the thigh region. In some embodiments, the multiple first strain sensors 2211 may be equally spaced apart. In other embodiments, the distance between two adjacent first strain sensors 2211 may be set according to a preset spacing distance. For example, the preset spacing distance may be 8 cm, 10 cm, or the like. By arranging multiple first strain sensors 2211, it is possible to measure the circumferential dimension of the thigh at different locations (e.g., different locations along the length of the thigh), thereby providing a more comprehensive measurement of the circumferential dimension of the thigh. In some embodiments, the first strain sensors 2211 may be arranged to correspond to specific locations on the user's thigh. For example, the first strain sensors 2211 may be arranged at the maximum and minimum locations of the thigh circumference. It should be noted that the maximum and minimum locations of the thigh circumference may be set based on a person's height or leg length, or may be personalized based on the user's leg shape. In some embodiments, the first strain sensor 2211 can be arranged along the length of the thigh, from top to bottom at 20% of the thigh length (the distance between the hip joint and the knee joint), 50% of the thigh length, and 80% of the thigh length.

[0072] In some embodiments, as shown in FIG3 , the at least one circumferential strain sensor 2210 of the wearable device 2000 may include a second strain sensor 2212. The second strain sensor 2212 may be used to measure the circumferential dimension of the user's calf. In some embodiments, the second strain sensor 2212 is located in the calf region 2120 of the trouser leg and extends along the circumference of the calf region 2120 (i.e., the direction indicated by arrow A in FIG3 ) to measure the circumferential dimension of the user's calf. By way of example only, the second strain sensor 2212 may be a band-like structure extending along the circumference of the calf region 2120 of the trouser leg.

[0073] In some embodiments, at least one circumferential strain sensor 2210 may include multiple second strain sensors 2212, and the multiple second strain sensors 2212 may be spaced apart along the length of the trouser leg. For example, as shown in FIG4 , the multiple second strain sensors 2212 may be spaced apart along the length of the trouser leg, in the calf region. In some embodiments, the multiple second strain sensors 2212 may be spaced apart. In other embodiments, the distance between two adjacent second strain sensors 2212 may be set according to a preset spacing distance. For example, the preset spacing distance may be 8 cm, 10 cm, etc. By arranging multiple second strain sensors 2212, it is possible to measure the circumferential dimensions of the calf at different locations (such as different locations along the length of the calf), thereby more comprehensively measuring the circumferential dimensions of the calf. In some embodiments, the second strain sensors 2212 may be arranged corresponding to specific locations on the user's calf. For example, the second strain sensors 2212 may be arranged at the location where the calf's circumferential dimension is the largest and at the location where the calf's circumferential dimension is the smallest. In some embodiments, the second strain sensor 2212 can be arranged along the calf length direction (the distance between the knee joint and the ankle) at 20% of the calf length, 50% of the calf length, and 80% of the calf length from top to bottom.

[0074] In some embodiments, as shown in FIG3 , the at least one circumferential strain sensor 2210 further includes a third strain sensor 2213. The third strain sensor 2213 is located in the waist region 2130 of the pants 2100 and extends along the circumference of the waist region 2130 (i.e., the direction indicated by arrow C in FIG3 ) to measure the circumferential dimension of the user's waist (i.e., waist circumference). By way of example only, the third strain sensor 2213 may be a band-like structure extending along the circumference of the waist region 2130 of the pants 2100 (corresponding to the circumference of the user's waist when the pants are worn).

[0075] In some embodiments, at least one circumferential strain sensor 2210 may include a plurality of third strain sensors 2213, and the plurality of third strain sensors 2213 may be arranged at intervals along the length direction of the pants 2100. In some embodiments, the plurality of third strain sensors 2213 may be arranged at equal intervals. In other embodiments, the distance between two adjacent third strain sensors 2213 may be set according to a preset interval distance. For example, the preset interval distance may be 5 cm, 7 cm, etc. By arranging a plurality of third strain sensors 2213, it is possible to measure the circumferential dimensions of different positions of the waist (such as different positions in the length direction of the waist) respectively, thereby more comprehensively measuring the circumferential dimensions of the waist. In some embodiments, the third strain sensors 2213 may be arranged corresponding to special positions on the user's waist. For example, the third strain sensors 2213 may be arranged at the place where the circumferential dimension of the waist is the largest and at the place where the circumferential dimension of the waist is the smallest.

[0076] By setting up multiple circumferential strain sensors 2210 (such as the first strain sensor 2211, the second strain sensor 2212 and the third strain sensor 2213) at different positions on the pants 2100, the circumferential dimensions of the user's legs and waist can be conveniently measured, thereby facilitating the user to monitor his or her own leg circumference and waist circumference.

[0077] FIG5 is a schematic diagram of the structure of a wearable device 2000 according to some other embodiments of the present specification, and FIG6 is a schematic diagram of the structure of a wearable device 2000 according to some other embodiments of the present specification. In some embodiments, as shown in FIG2A, FIG5 and FIG6. The wearable device 2000 may further include a longitudinal strain sensor 2220. FIG5 exemplarily shows the arrangement of the longitudinal strain sensor 2220 when a first strain sensor 2211 and a second strain sensor 2212 are respectively provided in the thigh area 2110 and the calf area 2120, and FIG6 exemplarily shows the arrangement of the longitudinal strain sensor 2220 when there are multiple first strain sensors 2211 and second strain sensors 2212 (three in the figure). Please refer to the further description below for details.

[0078] In some embodiments, the longitudinal strain sensor 2220 can be used to measure the length of the user's leg to reflect the shape of the user's leg. In some embodiments, the longitudinal strain sensor 2220 can extend along the length of the trouser leg. It should be noted that Figures 3-8 can be regarded as the effect of the trousers 2100 being worn on the user (for example only, the length of the trouser leg is substantially consistent with the length of the user's leg). Specifically, the length of the trousers 2100 (or the length of the user's leg) is shown in the direction indicated by arrow B in Figures 5-7). It is understandable that since the shape of the user's leg is not a regular cylindrical shape, the extension direction of part of the longitudinal strain sensor 2220 may change after the user puts on the trousers 2100. However, when the user is not wearing the trousers 2100, the longitudinal strain sensor 2220 extends along the length of the trouser leg. At least part of the longitudinal strain sensor 2220 is located in the thigh area 2110 and the calf area 2120. In some embodiments, the two ends of the longitudinal strain sensor 2220 are located on the thigh region 2110 and the calf region 2120, respectively. In other embodiments, the two ends of the longitudinal strain sensor 2220 are located on the waist region 2130 and the calf region 2120, respectively. As shown in FIG5 , one end of the longitudinal strain sensor 2220 is located in the thigh region 2110 above the knee joint region, and the other end is located in the calf region 2120 below the knee joint region. When a user puts on pants 2100, the user's leg shape (e.g., the angle between the thigh and calf, the difference in circumferential dimensions of the thigh and calf) affects the deformation of the trouser leg in the longitudinal direction, further affecting the extension of the longitudinal strain sensor 2220 along the length of the trouser leg. The electrical signal generated by the longitudinal strain sensor 2220 when detecting the deformation of the trouser leg can reflect the shape of the leg, such as the overall shape characteristics of the leg, the taper of the thigh, etc. It can be understood that during the wearing process, the longitudinal strain sensor 2220 can measure continuously, measure at intervals (for example, once every preset time interval), or measure the length direction of the user's leg according to instructions to achieve the purpose of monitoring the shape of the user's leg.

[0079] In some embodiments, the longitudinal sensor 2220 can monitor the posture of the user's legs by monitoring the shape of the user's legs. Because the leg muscles exert different forces in different postures, the shape of the user's legs will vary. By comparing and analyzing the shape of the current user's legs with the shape characteristics of the user's legs in various postures, the current user's leg posture can be determined. In some embodiments, the longitudinal sensor 2220 can monitor the movement of the user's legs by monitoring the shape of the user's legs. For example, by continuously measuring or measuring the length of the user's legs at intervals (for example, once every preset time interval) over a certain period of time, one or more shapes of the user's legs during that period can be determined. If the user's legs only have one shape during that period, the user may be in a generally stationary state (such as sitting, standing, or lying down). If the user's legs have multiple shapes during that period, the changes in the multiple shapes (such as periodic changes) can reflect the user's movements. For example, when a user is doing squat training, the shape of the user's legs will undergo periodic changes of large-angle bending (i.e., the angle between the thigh and calf is greatly reduced, such as the angle between the thigh and calf is reduced to less than 45°) and straightening within a certain period of time.

[0080] In some embodiments, at least one longitudinal strain sensor 2220 is located at least in an area of ​​a trouser leg that faces or faces away from the other trouser leg. The area of ​​a trouser leg that faces or faces away from the other trouser leg can be understood as the side of the trouser leg. Among them, the area of ​​a trouser leg that faces the other trouser leg can be understood as the inner side of the trouser leg, and the area of ​​a trouser leg that faces away from the other trouser leg can be understood as the outer side of the trouser leg. By setting up the longitudinal strain sensor 2220 in this way, the relative angle between the user's thigh and calf can be more accurately detected, and the changes in the shape of the user's leg in the length direction can be more accurately sensed, thereby more accurately detecting whether the user has common leg shape problems (such as X-shaped legs, O-shaped legs, knee hyperextension, etc.).

[0081] In some embodiments, as shown in FIG7 , the number of longitudinal strain sensors 2220 can be multiple, and the multiple longitudinal strain sensors 2220 are spaced apart along the circumference of the trouser leg. For example, the multiple longitudinal strain sensors 2220 can be respectively arranged on the front, back, outer side, inner side, etc. of the trousers 2100. For another example, when at least one longitudinal strain sensor 2220 is located at least on the side of the trouser leg, at least two longitudinal strain sensors 2220 can be provided on a trouser leg, with one of the at least two longitudinal strain sensors 2220 being arranged on the outer side of the trouser leg and the other of the at least two longitudinal strain sensors 2220 being arranged on the inner side of the trouser leg. By providing multiple strain sensors, the shape of the user's leg at different circumferential locations can be more accurately sensed, thereby more accurately measuring the overall shape of the user's leg.

[0082] In some embodiments, to facilitate processing, the longitudinal strain sensor 2220 and the circumferential strain sensor 2210 can be disposed on the same carrier layer of the pants 2100. In some embodiments, the circumferential strain sensor 2210 (the first strain sensor 2211 and / or the second strain sensor 2212) can be arranged overlapping with the longitudinal strain sensor 2220. In some embodiments, the longitudinal strain sensor 2220 and the circumferential strain sensor 2210 are arranged adjacent to each other. Adjacent arrangement can be understood as meaning that the longitudinal strain sensor 2220 and the circumferential strain sensor 2210, located on the same carrier layer, do not overlap in the thickness direction of the pants. The longitudinal strain sensor 2220 and the circumferential strain sensor 2210, located on the same carrier layer, can be disposed immediately adjacent to each other or spaced a certain distance apart.

[0083] In some embodiments, when the first strain sensor 2211 and the second strain sensor 2212 are disposed on the same carrier layer of the pants 2100, a first gap 2500 is formed between the two ends of the first strain sensor 2211 (e.g., the two ends of a band-like structure), and a second gap 2600 is formed between the two ends of the second strain sensor 2212 (e.g., the two ends of a band-like structure). The first gap 2500 and the second gap 2600 can be arranged relative to each other along the length of the trouser leg, that is, the first gap 2500 and the second gap 2600 are both located on the same straight line extending along the length of the trouser leg. The longitudinal strain sensor 2220 passes through the first gap 2500 and the second gap 2600. As shown in FIG. 5 , the first gap 2500 and the second gap 2600 are both located on the inner side of the trouser leg, and the longitudinal strain sensor 2220 passes through the first gap 2500 and the second gap 2600. As shown in Figure 6, when there are multiple first strain sensors 2211 and second strain sensors 2212, the longitudinal strain sensor 2220 can pass through the first gaps 2500 formed by each of the first strain sensors 2211 and the second gaps 2600 formed by each of the second strain sensors 2212. By providing the first gaps 2500 and second gaps 2600, the layout of the circumferential strain sensors 2210 and longitudinal strain sensors 2220 on the pants 2100 can be more rationalized, avoiding large protrusions at overlapping locations that could affect the user's comfort. Furthermore, the circumferential strain sensors 2210 and longitudinal strain sensors 2220 can operate stably without interfering with each other.

[0084] In some embodiments, when there are multiple longitudinal strain sensors 2220, the first strain sensor 2211 may include multiple first sub-strain sensors 2211-1 spaced circumferentially along the trouser leg, and the second strain sensor 2212 may include multiple second sub-strain sensors 2212-1 spaced circumferentially along the trouser leg. The multiple first sub-strain sensors 2211-1 and the multiple second sub-strain sensors 2212-1 may be arranged in a one-to-one correspondence. The longitudinal strain sensor 2220 passes through the gaps between two adjacent first sub-strain sensors 2211-1 and the gaps between two adjacent second sub-strain sensors 2212-1. For example, the gap between any two adjacent first sub-strain sensors 2211-1 may be a third gap 2700, and the gap between any two adjacent second sub-strain sensors 2212-1 may be a fourth gap 2800. The number of each of the third gap 2700 and the fourth gap 2800 may be multiple (e.g., at least two). The multiple third gaps 2700 and the multiple fourth gaps 2800 are arranged in a one-to-one correspondence. A third gap 2700 and a fourth gap 2800 arranged on the same straight line extending along the length of the trouser leg are said to be correspondingly arranged. Any longitudinal strain sensor 2220 passes through the correspondingly arranged third gap 2700 and fourth gap 2800. As shown in FIG7 , multiple first sub-strain sensors 2211-1 can be spaced apart along the circumference of the trouser leg (around the thigh). Multiple second sub-strain sensors 2212-1 can be spaced apart along the circumference of the trouser leg (around the calf). In FIG7 , the number of first sub-strain sensors 2211-1 and second sub-strain sensors 2212-1 is two each. The two first sub-strain sensors 2211-1 can be located on the front and back sides of the trouser leg (thigh region 2110), respectively (the first sub-strain sensor 2211-1 on the back is not shown in FIG7 ), and the two second sub-strain sensors 2212-1 can be located on the front and back sides of the trouser leg (calf region 2120), respectively (the first sub-strain sensor 2211-1 on the back is not shown in FIG7 ). There are two third gaps 2700 and two fourth gaps 2800, respectively. The two third gaps 2700 are located on the inner and outer sides of the trouser legs, respectively. The two fourth gaps 2800 can be located on the inner and outer sides of the trouser legs, respectively, and arranged corresponding to the third gaps 2700. It can be understood that the number, length, and relative positions of the first sub-strain sensors 2211-1 along the circumference of the thigh region 2110 of the trouser leg can be determined based on the circumferential size of the thigh and the number of longitudinal strain sensors 2220. The number, length, and relative positions of the second sub-strain sensors 2212-1 along the circumference of the calf region 2120 of the trouser leg can be determined based on the circumferential size of the calf and the number of longitudinal strain sensors 2220.The relative position of the first sub-strain sensor 2211-1 along the circumference of the thigh region 2110 of the trouser leg determines the position of the third gap 2700, and the relative position of the second sub-strain sensor 2212-1 along the circumference of the calf region 2120 of the trouser leg determines the position of the fourth gap 2800. By designing the relative positions of the first sub-strain sensor 2211-1 along the circumference of the thigh region 2110 of the trouser leg and the second sub-strain sensor 2212-1 along the circumference of the calf region 2120 of the trouser leg, it is possible to ensure that the multiple third gaps 2700 and the multiple fourth gaps 2800 are arranged in a one-to-one correspondence. This design ensures that, even if there are a large number of longitudinal strain sensors 2220, the longitudinal strain sensors 2220, the first strain sensor 2211, and the second strain sensor 2212 are rationally arranged to accurately measure the circumferential size, shape, and / or length of the user's leg.

[0085] In summary, by forming gaps (such as the first gap 2500, the second gap 2600, the third gap 2700, and the fourth gap 2800) on the circumferential strain sensor 2210 to arrange the longitudinal strain sensor 2220, while ensuring the reasonable layout of the longitudinal strain sensor 2220 and the circumferential strain sensor 2210, it can also ensure that the longitudinal strain sensor 2220 and the circumferential strain sensor 2210 do not interfere with each other, and at the same time, it can also avoid the user's discomfort caused by the overlap of the longitudinal strain sensor 2220 and the circumferential strain sensor 2210.

[0086] In some embodiments, the pants 2100 include at least two supporting layers stacked along the thickness direction of the pants 2100. Specifically, the number of supporting layers can be two, three, five, or the like. The circumferential strain sensor 2210 and the longitudinal strain sensor 2220 are disposed on different supporting layers. In some embodiments, the projections of the circumferential strain sensor 2210 and the longitudinal strain sensor 2220 located on different supporting layers (along the thickness direction of the pants 2100) may overlap in space. For example, the first strain sensor 2211 and the second strain sensor 2212 may form a complete ring (without forming a gap), and the longitudinal strain sensor 2220 may extend directly from above the first strain sensor 2211 to below the second strain sensor 2212. In other embodiments, the projections of the circumferential strain sensor 2210 and the longitudinal strain sensor 2220 located on different supporting layers (along the thickness direction of the pants 2100) may not overlap in space. By arranging the circumferential strain sensor 2210 and the longitudinal strain sensor 2220 on different bearing layers, even if the projections of the circumferential strain sensor 2210 and the longitudinal strain sensor 2220 overlap in space (along the thickness direction of the pants 2100), the two will not be in direct contact, ensuring that both the circumferential strain sensor and the longitudinal strain sensor can work stably.

[0087] It is understood that the arrangement (e.g., number and placement) of the strain sensors (e.g., circumferential strain sensor 2210 and longitudinal strain sensor 2220) on the left and right trouser legs of the trousers 2100 can be different. The specific arrangement of the strain sensors on the left and right trouser legs can be designed based on the user's needs. For example, for a user requiring single-leg rehabilitation, strain sensors may be installed only on the trouser leg corresponding to the leg requiring rehabilitation.

[0088] Figure 8 is a schematic diagram of the structure of the wearable device 2000 shown in some other embodiments of this specification, and Figure 9 is a schematic diagram of the structure of the first electrode module 2230 shown in some embodiments of this specification. As shown in Figures 8 and 9, the wearable device 2000 may also include a first electrode module 2230. The first electrode module 2230 is used to collect electromyographic signals of the muscles of the user's legs. By setting the first electrode module 2230 to collect electromyographic signals of the muscles of the user's legs, the user's exercise process (such as fitness, running, walking, etc.) can be monitored based on the electromyographic signals, and exercise feedback can be further provided to the user. The electromyographic signal is a bioelectric signal generated by the muscle contraction movement. Based on the results of the analysis of the electromyographic signal, the activity and function of the muscle can be reflected.

[0089] In some embodiments, the first electrode module 2230 can also detect the body composition of the user's legs. For example, it can detect the amount of fat and bone mass in the user's legs. The first electrode module 2230 can release electrical signals of one or more frequencies into the human body and then collect these electrical signals. Because electrical signals of different frequencies propagate differently in different types of human tissue, the resulting impedance and other information can be expressed differently. Based on this impedance information at different frequencies, the body composition of the human body can be interpreted.

[0090] The first electrode module 2230 can be integrated into the pants 2100. The first electrode module 2230 may include two first electrodes. The two first electrodes 2231 of the first electrode module 2230 are in contact with the user's skin, thereby collecting electromyographic signals on the skin surface. The two first electrodes 2231 are arranged at intervals along the muscle fiber direction of the same muscle of the user's leg (the direction shown by the arrow E in Figure 9). The arrow D in Figure 9 shows the extension direction of the electrode. The two first electrodes 2231 can be used to collect electromyographic signals of the same muscle of the user. In some embodiments, by performing differential processing on the electromyographic signals collected by different electrodes on the same muscle, the force exerted by the muscle can be reflected. Among them, the same muscle can refer to a single muscle or to the same muscle group (for example, the quadriceps femoris muscle group including the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius).

[0091] As an example only, when a user wears the wearable device 2000, at least two first electrodes 2231 are spaced apart along the direction of the muscle fibers of the muscle and extend in a direction perpendicular to the direction of the muscle fibers. Different positions along the direction of the muscle fibers have different electric potentials, where the position of the muscle fiber where one of the first electrodes 2231 is located has a first electric potential, and the position of the muscle fiber where the other first electrode 2231 is located has a second electric potential. There is a potential difference between the first potential and the second potential, and the potential difference can be used to reflect the force exerted by the muscle.

[0092] In some embodiments, the electrode acquisition accuracy and / or efficiency can be improved by designing the size of the first electrode 2231, the spacing between the two first electrodes 2231, and other factors, to achieve more accurate and effective signal acquisition. As shown in Figure 9, the width of the first electrode 2231 in the direction of the muscle fibers is a, the length in the extension direction is b, and the spacing between two adjacent first electrodes 2231 (i.e., the distance between the two adjacent sides of the two adjacent first electrodes 2231) is c. In some embodiments, the length b of the first electrode 2231 can be determined based on the size of the muscle in the direction of electrode extension (the direction indicated by arrow D in Figure 8) (or muscle width). For example, the length b can be large to reduce the noise caused by relative displacement between the electrode and the muscle, or the impact of the electrode deviating from the muscle's position on the strength of the collected electromyographic signal. By way of example only, the length b can be greater than or equal to the muscle width, or greater than or equal to 30%, 50%, 60%, 80%, or the like of the muscle width. For another example, when length b is too large, the electrode may span two or more groups of muscles (e.g., a group of target muscles and a group of non-target muscles), causing the collected EMG signals to interfere with each other, further making it impossible to accurately detect the EMG signals of the target muscles. Therefore, length b cannot be too large. As an example, length b can be greater than or equal to 30% of the width of the target muscle and less than or equal to the sum of the width of the target muscle and the distance between the target muscle and the non-target muscles. As another example, length b can be greater than or equal to 50% of the width of the target muscle and less than or equal to the width of the target muscle. In some embodiments, the length b of the electrode corresponding to a single target muscle can also be determined based on the test data of the rectus femoris muscle. Taking the rectus femoris muscle as an example, the range of the length b of the corresponding electrode can be determined based on the test data of the rectus femoris muscle. For example, the range of length b corresponding to the rectus femoris muscle can be 1mm-120mm. For another example, the range of length b corresponding to the rectus femoris muscle can be 10mm-100mm. For another example, the range of length b corresponding to the rectus femoris muscle can be 20mm-80mm. In some embodiments, the scaling factor of the single target muscle can be determined based on the relative relationship (e.g., size relationship) between the single target muscle and other target muscles, thereby determining the length b of the electrode corresponding to each muscle. Different scaling factors can be determined for different other target muscles. As an example only, the size of the biceps femoris is similar to that of the rectus femoris, and the scaling factor of the biceps femoris can be determined to be in the range of 0.8-1 (e.g., 0.9). For example, the range of the length b corresponding to the biceps femoris can be in the range of 0.9mm-108mm. For another example, the range of the length b corresponding to the biceps femoris can be in the range of 9mm-90mm. For another example, the range of the length b corresponding to the biceps femoris can be in the range of 18mm-72mm. As another example, the scaling factor of the tensor fasciae latae can be in the range of 0.5-0.8. As another example, the scaling factor of the tibialis anterior can be in the range of 0.3-0.7.As yet another example, the scaling factor for the gastrocnemius muscle may be in the range of 0.4-0.8.

[0093] In some embodiments, the intensity of the electromyographic signal collected by the electrode can be positively correlated with the distance c between two adjacent first electrodes 2231. The distance c cannot be too small, so as not to affect the intensity of the electromyographic signal. When the distance c is too large, it is easy to cause inconsistency between the two electrodes, thereby increasing the noise of the electromyographic signal and easily exceeding the muscle detection range. Therefore, the distance c between two adjacent first electrodes 2231 can be set within a preset range. For example, the distance c can be in the range of 1mm-50mm. For another example, the distance c can be in the range of 5mm-40mm. For another example, the distance c can be in the range of 10mm-30mm.

[0094] In some embodiments, to avoid cancellation of EMG signals at the end positions of the electrodes, which may result in a reduction in EMG signal intensity, the width a and / or spacing c of individual electrodes can be set within a preset size range. For example, the end positions can be the two ends of a single electrode along the direction of the muscle fibers (i.e., the two ends forming the width a). Accordingly, the width a of a single electrode needs to be set within a preset size range. For another example, the end positions can be the two ends of the electrode as a whole along the direction of the muscle fibers (i.e., the two ends of the first electrode 2231 that are separated from each other). Accordingly, the width 2a+c of two adjacent first electrodes 2231 as a whole needs to be set within a preset size range. In some embodiments, the preset size range can be related to the target frequency (e.g., 0-500 Hz, 10 Hz-300 Hz, 30 Hz-200 Hz, 60 Hz-140 Hz, etc.) at which cancellation is to be avoided. For example, the width a of a single first electrode 2231 can be less than half the wavelength of the EMG signal at the target frequency. For another example, the width 2a+c of two adjacent first electrodes 2231 as a whole can be less than the full wavelength of the EMG signal at the target frequency.

[0095] As described above regarding electrode dimensions, the length b of the first electrode 2231 is relatively large, while the width a is relatively small. In some embodiments, the length b of the first electrode 2231 in the muscle fiber direction is greater than the width a in the extension direction (i.e., b / a ≥ 1).

[0096] In some embodiments, the performance or comfort of the wearable device 2000 can be improved by designing the material and structure of the electrodes. For example, the electrodes can be waterproof to prevent short circuits between the electrodes. As another example, the electrodes can be made of an elastic material, making the wearable device 2000 easier to put on and take off, thereby improving the comfort of the wearable device 2000. By way of example only, the elasticity of the electrode material can range from 0% to 200%. As another example, the electrodes can be durable, able to withstand multiple washings in a washing machine, repeated putting on and taking off, and skin friction without affecting other performance. As another example, the electrodes can be corrosion-resistant (e.g., sweat corrosion). As another example, the electrodes can have good electrical conductivity. By way of example only, the conductivity of the electrodes can be greater than 10 kΩ / cm, and the change in conductivity of the electrodes under the influence of deformation, etc., can be less than 10 kΩ or less than 20% of the original conductivity. As another example, the electrodes can be breathable. By way of example only, the electrodes can be made of a breathable material (e.g., conductive fabric). As another example, the electrode may have a breathable structure (e.g., perforations, intermediate gas channels, etc.). For another example, the electrode may have a certain degree of softness to ensure the comfort of the wearable device 2000. For another example, the electrode may be relatively loose relative to the base structure (or wearable body).

[0097] The electrode is provided with a protrusion toward the skin surface, thereby achieving a local pressure effect and promoting the fit between the electrode and the skin surface. As an example only, the protrusion height of the electrode can be in the range of 0-10 mm. As another example, a filler can be provided between the electrode and the base structure to achieve the protrusion of the electrode. The filling material has a material with preset resilience, softness, water storage capacity, etc. (for example, a sponge, etc.). The preset resilience and softness can ensure the comfort of the wearable device 2000 when worn. The preset water storage energy can store part of the water while reducing the accumulation of excessive water on the skin surface to ensure good contact between the electrode and the skin for a long time.

[0098] In some embodiments, at least one circumferential strain sensor 2210 is arranged between the two first electrodes 2231 of the first electrode module 2230 to ensure that the circumferential strain sensor 2210 and the first electrode module 2230 are compactly arranged, avoid overlapping and adversely affect the extensibility of the circumferential strain sensor 2210, and ensure that both the circumferential strain sensor 2210 and the first electrode module 2230 can operate stably.

[0099] In some embodiments, there may be multiple first electrode modules 2230, and these modules may be arranged in areas such as the thigh region 2110 and the calf region 2120 of a trouser leg. The multiple first electrode modules 2230 located in the thigh region 2110 may be spaced apart along the circumference of the trouser leg, and the first strain sensor 2211 may be arranged between the two first electrodes 2231 of each first electrode module 2230 in the thigh region 2110. FIG. 8 illustrates a first electrode module 2230 located in the thigh region 2110, with the first electrode modules 2230 positioned on the front of the trouser leg. In some embodiments, the multiple first electrode modules 2230 located in the calf region 2120 may be spaced apart along the circumference of the trouser leg, and the first strain sensor 2211 may be arranged between the two first electrodes 2231 of each first electrode module 2230 in the calf region 2120. In other embodiments, the circumferential strain sensor 2210 may also be located above or below the first electrode module 2230.

[0100] FIG10 is a schematic diagram of a wearable device according to some embodiments of the present disclosure. In some embodiments, as shown in FIG2B and FIG10 , the sensor assembly 2200 includes a second electrode module 2240, which includes at least one second electrode 2241. The second electrode module 2240 is arranged on the pants 2100, and the at least one second electrode 2241 extends circumferentially along the trouser legs. The second electrode module 2240 can be used to measure the circumferential size of the user's legs. When the user puts on the pants 2100, the trouser legs deform circumferentially, causing the second electrodes 2241 to deform circumferentially along the trouser legs at the same time, resulting in a change in the resistance of the electromyographic electrodes (e.g., an increase). By detecting the change in the resistance of the second electrodes 2241, the circumferential deformation of the second electrodes 2241 can be determined, and the circumferential size of the user's legs can be further determined. By providing an electrode module to collect the circumferential size of the user's legs, the area occupied by the sensor assembly 2200 on the pants 2100 can be reduced, effectively avoiding discomfort for the user. It can be understood that during the wearing process, the second electrode module 2240 can measure continuously, measure at intervals (for example, once every preset time interval), or measure the circumferential size of the user's legs according to instructions to achieve the purpose of monitoring the user's leg circumference.

[0101] In some embodiments, the second electrode module 2240 includes at least two second electrodes 2241, and the second electrode 2241 can be in contact with the user's skin. At least two second electrodes 2241 are arranged at intervals along the direction of the muscle fibers of the same muscle of the user's leg. At this time, the second electrode module 2240 can be used to measure the size of the user's legs, and can also be used to collect electromyographic signals of the user's leg muscles. The principle of collecting electromyographic signals by the second electrode module 2240 is similar to the principle of collecting electromyographic signals by the first electrode module. Please refer to the above description of the first electrode module 2230. By setting at least two second electrodes 2241 that fit the user's skin, it is ensured that the second electrode module 2240 measures the circumferential size of the user's legs to detect the leg circumference while collecting the electromyographic signals of the user's leg muscles to monitor the activity and function of the user's leg muscles.

[0102] In some embodiments, there may be multiple second electrode modules 2240, and the multiple second electrode modules 2240 may be arranged in areas such as the thigh region 2110 and the calf region 2120 of the trouser leg. The multiple second electrode modules 2240 located in the thigh region 2110 may be spaced apart along the circumference of the trouser leg, and the multiple second electrode modules 2240 located in the calf region 2120 may be spaced apart along the circumference of the trouser leg. In some embodiments, the multiple second electrode modules 2240 may also be spaced apart along the length of the trouser leg. In some embodiments, the multiple second electrode modules 2240 may also be arranged in the waist region 2130 of the trousers to measure the user's waist circumference.

[0103] In some embodiments, the second electrode 2241 may be made of a specific material that is electrically conductive but also has certain impedance characteristics. For example, the second electrode 2241 may be made of a material with an electrical conductivity of less than 500Ω / cm. In some embodiments, the second electrode 2241 may be made of conductive silicon (with a resistance at the k-ohm level). By making the second electrode 2241 from a specific material, the resistance of the second electrode 2241 is increased, and the change in the resistance of the second electrode 2241 affected by the deformation of the second electrode 2241 increases accordingly, thereby improving the accuracy of the second electrode 2241 in measuring the circumferential size of the user's leg.

[0104] FIG11 is a schematic diagram of the structure of the second electrode module 2240 according to some embodiments of the present disclosure. In some embodiments, as shown in FIG11 , each second electrode 2241 is provided with a first signal lead-out terminal 2241-1, a second signal lead-out terminal 2241-2, and a third signal lead-out terminal 2241-3. The first signal lead-out terminal 2241-1 and the second signal lead-out terminal 2241-2 are used to lead out a signal of the measured circumferential dimension, and the third signal lead-out terminal 2241-3 is used to lead out an electric potential signal. The first signal lead-out terminal 2241-1 and the second signal lead-out terminal 2241-2 are respectively located at opposite ends of the extension direction of the second electrode 2241, so that the resistance value of the second electrode 2241 can be measured through the first signal lead-out terminal 2241-1 and the second signal lead-out terminal 2241-2. The third signal lead-out terminal 2241-3 of each second electrode 2241 can lead out the potential signal collected by the second electrode 2241. The potential difference can be determined by the potential signals led out by the third signal lead-out terminals of at least two second electrodes 2241, thereby enabling the second electrode module 2240 to collect electromyographic signals. By providing the first signal lead-out terminal 2241-1, the second signal lead-out terminal 2241-2, and the third signal lead-out terminal 2241-3, the second electrode module 2240 can measure the circumferential size of the user's leg and collect electromyographic signals of the user's leg muscles without interfering with each other, and the two signals can also be led out without interfering with each other.

[0105] In some embodiments, the second electrode 2241 is a unidirectional deformable electrode set for a preset direction. A unidirectional deformable electrode set for a preset direction refers to an electrode that deforms only along the preset direction. Therefore, even if the unidirectional deformable electrode is subjected to stress in multiple directions, it will only deform along the preset direction and will hardly deform in other directions. For example, when the unidirectional deformable electrode is subjected to stress in multiple directions, the deformation variable of the unidirectional deformable electrode in the preset direction (such as the extended length value f1) is much greater than the deformation variable of the unidirectional deformable electrode in other directions (except the preset direction) (such as the extended length value f2). For example, f1 is more than 10 times f2.

[0106] In some embodiments, the second electrode 2241 can be implemented as a unidirectional deformable electrode through structural design or weaving form design. As an example only, when the second electrode 2241 is a unidirectional deformable electrode set for the circumferential deformation of the trouser legs, the second electrode 2241 may include a plurality of electrode sheets, and the plurality of electrode sheets may be arranged along the length direction of the trouser legs (perpendicular to the circumference of the trouser legs). An elastic member (such as an elastic rope) may be provided between two adjacent electrode sheets. When the trouser legs are deformed along their length direction, due to the presence of the elastic member, the elastic member is deformed first, and the electrode sheet itself is not easily strained in the length direction of the trouser legs. When the trouser legs are deformed along their circumference, the electrode sheet itself is strained, and the resistance value of each electrode sheet changes, thereby changing the resistance value of the second electrode 2241.

[0107] In other embodiments, the second electrode 2241 is a unidirectional strain-sensitive electrode set for a preset direction. A unidirectional strain-sensitive electrode set for a preset direction refers to an electrode whose resistance value changes only when the unidirectional strain-sensitive electrode is deformed along the preset direction. In other words, the unidirectional strain-sensitive electrode will deform in all directions of force, but its resistance value will only change with the deformation in the preset direction, and no (obvious) resistance value change will occur with deformation in other directions. For example, the change in resistance value e1 of the unidirectional strain-sensitive electrode for deformation in the preset direction is much greater than the change in resistance value e2 of the unidirectional strain-sensitive electrode for the same deformation in other directions (except the preset direction). For example, e1 is more than 10 times e2.

[0108] In some embodiments, the preset direction is the circumference of the trouser leg. That is, the second electrode 2241 is a unidirectional deformation electrode or a unidirectional strain-sensitive electrode configured for circumferential deformation of the trouser leg. When the user puts on the trousers 2100, the second electrode 2241 only deforms along the circumference of the trouser leg. For example, the deformation of the second electrode 2241 along the circumference of the trouser leg (such as the extended length value f3) is much greater than its deformation in other directions (except the circumference) (such as the extended length value f4). For example, f3 is more than 10 times f4. Alternatively, when the user puts on the trousers 2100, although the second electrode 2241 deforms in all directions, it only produces a change in resistance in response to the deformation along the circumference of the trouser leg, that is, the second electrode 2241 is only sensitive to strain in a single direction, and the second electrode 2241 hardly produces a change in resistance for deformation in other directions other than the circumferential deformation of the trouser leg. For example, the change in resistance e3 of the second electrode 2241 caused by circumferential deformation of the trouser leg is much greater than the change in resistance e4 caused by the same deformation of the trouser leg in other directions (except the circumferential direction). For example, e3 is more than 10 times e4.

[0109] In some embodiments, as shown in Figures 2B and 10, the sensor module 2200 further includes a third electrode module 2250, which includes at least one third electrode 2251. In some embodiments, the preset direction is the length direction of the trouser leg. That is, the third electrode 2251 is a unidirectional deformation electrode or a unidirectional strain-sensitive electrode configured for deformation in the length direction of the trouser leg. When the user puts on the trousers 2100, the third electrode 2251 only deforms along the length direction of the trouser leg. For example, the deformation of the third electrode 2251 along the length direction of the trouser leg (such as the extended length value f5) is much greater than its deformation in other directions (except the length direction) (such as the extended length value f6). For example, f5 is more than 10 times f6. Alternatively, when a user puts on pants 2100, although the third electrode 2251 deforms in various directions, it only produces a change in resistance in response to the deformation of the trouser leg along its length. That is, the third electrode 2251 is only sensitive to strain in a single direction, and the third electrode 2251 produces almost no change in resistance in response to deformation in directions other than the length of the trouser leg. For example, the change in resistance e5 produced by the third electrode 2251 in response to deformation in the length of the trouser leg is much greater than the change in resistance e6 produced by the same deformation in other directions (other than the length). For example, e5 is more than 10 times greater than e6. By configuring the third electrode module 2250, the deformation of the trouser leg along its length can be accurately measured, thereby providing a reference for determining the shape of the user's leg.

[0110] The third electrode 2251 is implemented as a unidirectional deformation electrode or a unidirectional strain-sensitive electrode for the longitudinal deformation of the trouser leg in a manner similar to the second electrode 2241 being implemented as a unidirectional deformation electrode or a unidirectional strain-sensitive electrode for the circumferential deformation of the trouser leg.

[0111] In some embodiments, the sensor assembly 2200 may include a fourth electrode module, which may include at least two fourth electrodes (not shown in the figure), at least two of which are unidirectional deformation electrodes or unidirectional strain-sensitive electrodes configured for deformation in different directions of the trouser legs. For example, one of the fourth electrodes may be a unidirectional strain-sensitive electrode configured for deformation in the longitudinal direction of the trouser legs, while the other fourth electrode may be a unidirectional strain-sensitive electrode configured for deformation in the circumferential direction of the trouser legs. With such a configuration, deformation in two specific directions of the trouser legs can be accurately measured using a single electrode module.

[0112] In some embodiments, to enhance user comfort and meet the needs of different scenarios, the trouser leg regions where different strain sensors are located can be configured with different elasticities. For example, in some cases, to prevent varicose veins in the calf, the elasticity coefficient of the calf region 2120 of the trouser leg where the second strain sensor 2212 is located can be increased, for example, so that the elasticity coefficient of the calf region 2120 of the trouser leg where the second strain sensor 2212 is located is greater than the elasticity coefficient of the thigh region 2110 of the trouser leg where the first strain sensor 2211 is located. For another example, to provide greater comfort in the waist region, the elasticity coefficient of the waist region where the third strain sensor 2213 is located can be reduced, for example, so that the elasticity coefficient of the waist region where the third strain sensor 2213 is located is less than the elasticity coefficient of the thigh region 2110 of the trouser leg where the first strain sensor 2211 is located. In some embodiments, the elasticity coefficient of corresponding trouser regions can be altered by changing the cut and material configuration of the trousers (for example, the cut and material configuration of the thigh region 2110 and the calf region 2120 of the trouser legs), and / or the structure / material of the strain sensors. For example, when the materials of the trouser legs are the same, a strain sensor that is less likely to deform (for example, with a larger elastic coefficient) can be set in the calf area 2120, and a strain sensor that is more easily deformed (for example, with a smaller elastic coefficient) can be set in the thigh area 2110, so that after the user puts on the pants 2100, the pressure of the pants 2100 on the calf is greater than the pressure on the thigh.

[0113] In some embodiments, referring again to Figures 2A and 2B , the wearable device 2000 may further include a processing circuit 2400. The processing circuit 2400 may be integrated into the pants 2100. In some embodiments, the processing circuit 2400 may be integrated into the waist region 2130 of the pants 2100. In some embodiments, the processing circuit 2400 may be the processing device 1100 in Figure 1 . In other embodiments, the processing circuit 2400 may be a portion of the processing device 1100 in Figure 1 . The processing circuit 2400 may be configured to process or transmit the circumferential dimensions of the user's leg. For example, the processing circuit 2400 may transmit the circumferential dimensions to the storage device 1300 or the terminal device 1400 via the network 1200. In some embodiments, the processing circuit 2400 may directly process the circumferential dimensions to generate feedback information, which may be presented to the user. The feedback information may include circumference information of the user's leg, circumference change information, a model of the user's leg, training guidance suggestions, posture information, correction suggestions, and the like.

[0114] This specification also provides a wearable device, which may include any of the pants 2100 described above and the technical solution, a sensor assembly 2200, and a processor 3000. The processor 3000 is used to process data (such as circumferential size, leg shape, electromyographic signals, etc.) measured by the sensor assembly (such as the circumferential strain sensor 2210, the circumferential strain sensor 2210, the first electrode module 2230, the second electrode module 2240, or the third electrode module 2250). In some embodiments, the processor 3000 can control the wearable device 2000 to perform a preset operation. For example, the processor 3000 can control the sensor assembly 2200 to start measuring the circumferential size of the user's leg. For another example, the processor 3000 can control the sensor assembly 2200 to measure the circumferential size of the user's leg at regular intervals. In some embodiments, the processor 3000 may be the processing device 1100 described in Figure 1. In some embodiments, the processor 3000 may include the processing circuit 2400 described above. The processor 3000 can be integrated into the pants 2100 (such as the waist area 2130 of the pants 2100), or it can be located in the cloud, and obtain the data collected by the sensor component 2200 through remote communication with the sensor component 2200.

[0115] Figure 12 is a block diagram of a processor 3000 of a wearable device according to some embodiments of this specification. In some embodiments, as shown in Figure 12, the processor 3000 may include an acquisition module 3100, a girth generation module 3200, a model generation module 3300, a training suggestion module 3400, and a posture determination module 3500. It should be noted that the above modules are intended for illustration purposes only and are not intended to limit the functions of the processor 3000. For example, the processor 3000 may include only one or more of these modules, or the processor 3000 may also include other modules.

[0116] In some embodiments, the processor 3000 may be configured to: obtain the circumferential size of the user's leg; and generate circumference information of the user's leg based on the circumferential size. The operation of obtaining the circumferential size of the user's leg may be performed by the acquisition module 3100, and the operation of generating the circumference information of the user's leg may be performed by the circumference generation module 3200. In some embodiments, the acquisition module 3100 may obtain the circumference of the user's leg from the sensor assembly 2200 described above (such as the circumferential strain sensor 2210 or the second electrode module 2240). The circumference information may reflect the circumference of the user's leg, and the circumference information may include the circumferential size of multiple parts of the user's leg (such as the thigh, calf, knee, ankle, etc.). In some embodiments, the generated circumference information may be sent to the user's terminal device 1400. In some embodiments, the generated circumference information may be stored in the storage device 1300.

[0117] In some embodiments, the circumference information includes circumference change information within a first preset time period. The circumference change information may include data such as the changing trend (e.g., increasing or decreasing trend) and the amount of change in the circumferential dimension of the user's leg within the first preset time period. The first preset time period may be a day, a week, a month, a year, etc. Alternatively, the first preset time period may be a user-defined period. The processor 3000 may be configured to monitor the circumferential dimension of the user's leg within the first preset time period and generate circumference change information. That is, the processor 3000 may control the sensor assembly 2200 to collect the circumferential dimension of the user's leg multiple times within the first preset time period (e.g., once at regular intervals) and generate circumference change information based on the multiple circumferential dimensions collected multiple times. By way of example only, the processor 3000 may control the sensor assembly 2200 to collect the circumferential dimension of the thigh region 2110 of the user's leg daily for one month (e.g., using the first strain sensor 2211), and then determine the changing trend and amount of change in the circumference of the user's leg based on the circumferential dimensions collected over the month. By generating circumference change information and feeding it back to the user, the user can more conveniently understand the circumference changes of his or her legs.

[0118] In some embodiments, the sensor assembly 2200 detects the shape of the user's leg via the longitudinal strain sensor 2220. The processor 3000 may be configured to generate a model of the user's leg based on the shape and circumferential dimensions of the user's leg. This operation may be performed by the model generation module 3300. Exemplary leg models may include two-dimensional image models, three-dimensional image models, and the like. In some embodiments, the model generation module 3300 transmits the generated model of the user's leg to the user's terminal device 1400. In some embodiments, the generated model of the user's leg may be stored in the storage device 1300. By generating the model of the user's leg, the user can more conveniently and intuitively observe the shape of their leg, thereby enabling targeted training to improve their leg shape.

[0119] In some embodiments, the processor 3000 can be configured to generate a first training guidance suggestion based on the circumference information of the user's legs. This operation can be performed by the training suggestion module 3400. The first training guidance suggestion can be a training guidance suggestion for targeted training based on the circumference information of the user's legs. In some embodiments, the first training guidance information can be a suggestion for training a specific one or more parts of the leg. In some embodiments, the first training guidance suggestion can include a link to a training course or a training guidance video. For example, based on the circumference information of the user's legs, it is analyzed that the circumferential size of the user's thigh is greater than the preset thigh circumferential size. At this time, the first training guidance suggestion for thigh training can be fed back to the user. Furthermore, a link to a training course or a training guidance video for thigh training can also be sent to the user. In this way, based on the user's specific data, the user can be scientifically guided to perform targeted training to achieve better body shaping or fitness effects.

[0120] In some embodiments, the processor 3000 may further adjust the first training guidance suggestion based on the circumference change information. For example, after a user has trained for a period of time, if the circumference change information reveals that the circumference change of the user's training area (such as the thigh) is not ideal, the processor 3000 may modify the first training guidance suggestion (e.g., by replacing the link with a more intense training course).

[0121] In some embodiments, the wearable device 2000 further includes the aforementioned first electrode module 2230 integrated into the pants 2100. The processor 3000 may be configured to generate a second training guidance suggestion based on the circumferential dimensions of the user's legs and electromyographic signals. The second training guidance suggestion may be generated based on the electromyographic signals generated during exercise. Electromyographic signals can reflect the activity and function of the user's muscles during exercise. Based on analysis of the electromyographic signals, training guidance suggestions can be provided to the user based on training intensity. Exemplary second training guidance suggestions may include at least one of fatigue reminders, running workload recommendations, and target muscle strength training recommendations. As an example, the processor 3000 may first determine the area of ​​the user requiring targeted training based on the circumferential dimensions of the user's legs and determine a corresponding training course. The processor 3000 may then adjust the training intensity of the training course based on the electromyographic signals generated during exercise. The training course may be related to the training intensity of the target muscle or muscle group. The processor 3000 can extract one or more characteristic values ​​that can characterize the muscle training intensity from the electromyographic signal, and judge whether the characteristic value meets the preset conditions (for example, the characteristic value is greater than a certain threshold value) based on this to reflect whether the user's current movement meets the training effect of the muscle / muscle group. If not, the processor 3000 can generate a suggestion to remind the user to adjust the user's movement or force method. Exemplary characteristic values ​​characterizing muscle training intensity may include the amplitude of the electromyographic signal within the target time interval, the absolute value of the amplitude, the average value of the amplitude (or absolute value), the maximum amplitude, the minimum amplitude, the median frequency, the peak frequency, the total force, the electromyographic power, the foot contact time, the average frequency, etc.

[0122] In some embodiments, while the user is training based on the first training guidance suggestion, the processor 3000 may adjust the first training guidance suggestion based on the electromyographic signal to generate a second training guidance suggestion. For example, the processor 3000 may adjust the number of repetitions of a certain action in the first training guidance suggestion to generate a second training guidance suggestion. In other embodiments, the second training guidance suggestion may be generated based on the first training guidance suggestion in combination with the electromyographic signals of the user's history. For example, the processor 3000 may adjust the first training guidance suggestion based on the first training guidance suggestion in combination with the electromyographic signals of the user's last training to generate a second training guidance suggestion. In some embodiments, the generated first training guidance guidance information and the second training guidance guidance information may be sent to the user's terminal device 1400. In some embodiments, the generated first training guidance guidance information and the second training guidance guidance information may be stored in the storage device 1300.

[0123] In some embodiments, the processor 3000 may be configured to determine posture information reflecting the posture of the user's legs based on the shape and / or circumferential size of the user's legs. This operation may be performed by the posture determination module 3500. The posture information includes the current posture and the duration that the user's legs are in the current posture. Since the leg muscles exert different forces in different postures, the shape and circumferential size of the user's legs will be different. By comparing and analyzing the shape and circumferential size characteristics of the current user's legs with the shape and circumferential size characteristics of the user's legs in various postures, the posture information reflecting the current user's leg posture may be determined. The posture information may be information related to the user's posture, and the posture may include one or more of a standing posture, a sitting posture, a walking posture, an exercise posture, a lying posture, and preset bad postures (such as crossing one's legs, sitting cross-legged, kneeling, etc.).

[0124] In some embodiments, the duration of the user's legs being in the current posture can be the total duration of the user's legs being in the current posture within a certain time period. For example, the processor can determine the total duration of the user being in a sitting position within a day. The certain time period can be a day, a week, or a user-defined period. Determining the total duration of the user's legs being in the current posture and providing feedback to the user allows the user to understand the duration of their legs being in the current posture within a certain time period, thereby understanding their activity patterns within that time period. For example, a user can understand the duration of their sitting posture during the day and thus determine whether they are sedentary for a long time. In some embodiments, the processor can generate a reminder message in response to the duration of the user's legs being in the current posture exceeding a preset time period, and provide feedback to the user. For example, when the user's current posture is a sitting posture, the processor can generate a reminder message and provide feedback to the user if the user has been in the sitting posture for a predetermined time period (e.g., one hour).

[0125] In some embodiments, the posture includes at least one of the preset unhealthy postures. These may include crossing one's legs, sitting cross-legged, or kneeling. In some embodiments, the processor 3000 may be configured to: in response to the user's current leg posture and the preset unhealthy posture, determine the duration of time the user's leg has been in the preset unhealthy posture based on the shape and / or circumferential dimensions of the user's leg; and generate corrective suggestions based on the duration of time the user's leg has been in the preset unhealthy posture. In some embodiments, this operation may be performed by the posture determination module 3500. When a user is in a preset unhealthy posture, certain specific locations on the user's leg are continuously compressed, resulting in significant changes in shape and circumferential dimensions. Therefore, based on the shape characteristics and dimensional changes of specific locations on the leg in each of the preset unhealthy postures, it is possible to determine whether the user is in a preset unhealthy posture and which specific preset unhealthy posture the user is in. For example, when a user's legs are in a kneeling posture, the back of both the thigh and calf are compressed and flattened, and the angle between the thigh and calf is small. If the shape and circumferential dimensions of the user's leg indicate that the user's leg exhibits these conditions, the user is determined to be in a kneeling posture. Corrective suggestions may include reminders that the user's legs have been in a preset bad posture for too long, reminders of the dangers of bad posture, and correction suggestions for bad posture (such as correct sitting posture suggestions). For example, the processor 3000 generates a corrective suggestion in response to the user's legs being in the cross-legged posture for longer than a preset time. In some embodiments, the generated corrective suggestion may be sent to the user's terminal device 1400. In some embodiments, the generated corrective suggestion may be stored in the storage device 1300.

[0126] In some embodiments, the posture includes at least a walking posture and a running posture. In some embodiments, the processor 3000 can be configured to: in response to the current posture of the user's legs being a walking posture or a running posture, determine at least one of the user's step count, stride length, and cadence based on the shape and / or circumferential dimensions of the user's legs. When the user is in a walking posture or a running posture, the shape and circumferential dimensions of the user's legs will show obvious periodic changes. Based on such change characteristics, it can be determined that the user is in a walking posture or a running posture. As an example only, the user's cadence can be determined based on the frequency of obvious periodic changes in the shape and circumferential dimensions of the user's legs; the user's stride length can be determined based on the specific shape changes of the user's legs (such as the angle changes of the thigh and calf). By determining the user's step count, stride length, and / or cadence, the user can more easily understand his or her walking or running situation.

[0127] In some embodiments, the processor may generate a reminder or suggestion based on at least one of the user's step count, stride length, and cadence. For example, the processor may generate a suggestion to the user to walk more if the user's step count within a certain period of time (e.g., a day) is less than a preset step threshold (e.g., 2,000 steps).

[0128] In some embodiments, the posture includes at least an exercise posture. The processor 3000 may be configured to, in response to the user's leg currently being in an exercise posture, count the user's leg exercise movements based on the shape and / or circumferential dimensions of the user's leg. This operation may be performed by the posture determination module 3500. When a user is in an exercise posture, the shape of the leg continuously changes, the muscles continuously exert force, and the circumferential dimensions of the user's leg also continuously change. Therefore, based on measurements of the shape and circumferential dimensions of the user's leg, it can be determined whether the user is in an exercise posture. Counting the user's leg exercise movements may include determining the user's leg exercise movements and determining the number of repetitions of each exercise movement. Based on the shape and circumferential dimensions of the user's leg, the processor 3000 may determine the user's performing exercise movements (such as jumping jacks, squats, etc.). When these movements are repeated, the processor 3000 may count the number of repetitions of each exercise movement. By way of example only, the posture determination module 3500 may count the number of jumping jacks performed by the user's leg. By counting the user's leg exercise movements, the user can more clearly understand their exercise status. In some embodiments, the result of counting the user's leg exercise motions may be sent to the user's terminal device 1400. In some embodiments, the result of counting the user's leg exercise motions may be stored in the storage device 1300.

[0129] In some embodiments, the processor may generate reminders or suggestions based on the statistical results of the user's leg exercise movements. For example, if the number of times the user's legs squat is greater than a preset number, the processor may generate a reminder to remind the user to reduce the intensity of the training. In some embodiments, the processor may generate reminders or suggestions based on the statistical results of the user's leg exercise movements and electromyographic signals. For example, after the user performs training, the processor counts the number of times the user's legs squat during the training, and based on the analysis of the electromyographic signals that the user's training intensity is high, the processor may generate a suggestion to adjust the number of squats (such as suggesting to adjust the squats from 40 times to 20 times).

[0130] While the basic concepts have been described above, it will be apparent to those skilled in the art that the detailed disclosure is merely illustrative and does not limit this specification. Although not explicitly stated herein, various modifications, improvements, and revisions to this specification may be made by those skilled in the art. Such modifications, improvements, and revisions are suggested in this specification and remain within the spirit and scope of the exemplary embodiments of this specification.

[0131] This specification also uses specific terms to describe the embodiments of this specification. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "one embodiment," "an embodiment," or "an alternative embodiment" two or more times in different locations in this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of this specification may be appropriately combined.

[0132] In addition, unless expressly stated in the claims, the order of the processing elements and sequences, the use of alphanumeric characters, or the use of other names described in this specification are not intended to limit the order of the processes and methods of this specification. Although the above disclosure discusses some of the invention embodiments currently considered useful through various examples, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the spirit and scope of the embodiments of this specification. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.

[0133] Similarly, it should be noted that, in order to simplify the presentation of this specification and thus facilitate understanding of one or more embodiments of the invention, the foregoing descriptions of the embodiments of this specification sometimes combine multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not imply that the subject matter of this specification requires more features than those recited in the claims. In fact, an embodiment may have fewer features than all of the features of a single disclosed embodiment.

[0134] In some embodiments, numbers are used to describe the quantity of components and attributes. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise stated, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the description and claims are approximate values, which may change according to the required characteristics of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of this specification are approximate values, in specific embodiments, the settings of such numerical values ​​are as accurate as possible within the feasible range.

[0135] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, and documents, cited in this specification is hereby incorporated by reference in its entirety. This includes application history documents that are inconsistent with or conflict with the content of this specification, as well as documents (currently or subsequently attached to this specification) that limit the broadest scope of the claims of this specification. It should be noted that if the descriptions, definitions, and / or terminology used in the accompanying materials are inconsistent or conflicting with the content of this specification, the descriptions, definitions, and / or terminology used in this specification will control.

[0136] Finally, it should be understood that the embodiments described in this specification are intended only to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, by way of example and not limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly described and illustrated in this specification.

Claims

1. A wearable device, characterized in that: include: Pants; as well as A sensor assembly is fixed on the trousers, wherein the sensor assembly includes at least one circumferential strain sensor, wherein the circumferential strain sensor extends along the circumference of the trouser legs to measure the circumferential size of the user's legs.

2. The wearable device according to claim 1, wherein: The at least one circumferential strain sensor comprises: a first strain sensor, the first strain sensor being located in a thigh region of the trouser leg and extending along a circumference of the thigh region to measure a circumferential dimension of the user's thigh; and The second strain sensor is located in the calf area of ​​the trouser leg and extends along the circumference of the calf area to measure the circumferential size of the user's calf.

3. The wearable device according to claim 2, wherein: The at least one circumferential strain sensor includes a plurality of the first strain sensors, and the plurality of the first strain sensors are spaced apart along the length direction of the trouser leg; And / or, the at least one circumferential strain sensor includes a plurality of the second strain sensors, and the plurality of the second strain sensors are arranged at intervals along the length direction of the trouser leg.

4. The wearable device according to claim 1, wherein: The at least one circumferential strain sensor includes a third strain sensor, which is located in a waist region of the trousers and extends along a circumference of the waist region to measure a circumferential dimension of the user's waist.

5. The wearable device according to claim 2, wherein: The sensor assembly further includes at least one longitudinal strain sensor, which extends along the length direction of the trouser leg, and at least a portion of the longitudinal strain sensor is located in the thigh area and the calf area.

6. The wearable device according to claim 5, wherein: The longitudinal strain sensor and the circumferential strain sensor are located on the same bearing layer, and are arranged adjacent to each other.

7. The wearable device according to claim 6, wherein: A first gap is formed at both ends of the first strain sensor, a second gap is formed at both ends of the second strain sensor, and the longitudinal strain sensor passes through the first gap and the second gap.

8. The wearable device according to claim 5, wherein: The trousers include at least two load-bearing layers stacked along a thickness direction of the trousers, and the circumferential strain sensor and the longitudinal strain sensor are provided on different load-bearing layers.

9. The wearable device according to claim 5, wherein: There are multiple longitudinal strain sensors, and the multiple longitudinal strain sensors are arranged at intervals along the circumference of the trouser leg.

10. The wearable device according to claim 5, wherein: At least one of the longitudinal strain sensors is located at least in an area of ​​the trouser leg facing toward or away from the other trouser leg.

11. The wearable device according to claim 2, wherein: The elastic coefficient of the calf area of ​​the trouser leg where the second strain sensor is located is greater than the elastic coefficient of the thigh area of ​​the trouser leg where the first strain sensor is located.

12. The wearable device according to claim 1, wherein: The sensor assembly further includes a first electrode module integrated on the pants, the first electrode module including at least two first electrodes in contact with the user's skin, the first electrodes in contact with the user's skin, the at least two first electrodes being spaced apart along the direction of muscle fibers of the same muscle of the user's leg; The first electrode module is used to collect electromyographic signals of the muscles of the user's legs.

13. The wearable device according to claim 12, wherein: At least one of the circumferential strain sensors is arranged between at least two of the first electrodes of the first electrode module.

14. The wearable device according to claim 1, wherein: Also included is a processing circuit, the processing circuit being integrated into the waist region of the pants; The processing circuit is used to process or send the circumferential dimension of the user's leg.

15. A wearable device, characterized in that: include: Pants; as well as A sensor assembly fixed on the trousers, the sensor assembly including a second electrode module, the second electrode module including at least one second electrode, the at least one second electrode extending along the circumference of the trouser legs, the second electrode module being used to measure the circumferential size of the user's legs.

16. The wearable device according to claim 15, wherein: The second electrode module includes at least two second electrodes, the second electrodes are in contact with the user's skin, and the at least two second electrodes are spaced apart along the muscle fiber direction of the same muscle of the user's leg; The second electrode module is also used to collect electromyographic signals of the muscles of the user's legs.

17. The wearable device according to claim 16, wherein: Each of the second electrodes is provided with a first signal lead-out terminal, a second signal lead-out terminal and a third signal lead-out terminal. The first signal lead-out terminal and the second signal lead-out terminal are used to lead out the signal of the measured circumferential dimension. The first signal lead-out terminal and the second signal lead-out terminal are respectively located at the two ends of the extension direction of the second electrode. The third signal lead-out terminal is used to lead out the potential signal.

18. The wearable device according to claim 15, wherein: The second electrode is a unidirectional deformation electrode or a unidirectional strain sensitive electrode provided for the circumferential deformation of the trouser leg.

19. The wearable device according to claim 15, wherein: The sensor module further includes a third electrode module, which includes at least one third electrode. The third electrode is a unidirectional deformation electrode or a unidirectional strain-sensitive electrode arranged in the length direction of the trouser leg.

20. A wearable device, characterized in that: include: Pants; a sensor assembly fixed to the trousers, the sensor assembly comprising at least one circumferential strain sensor, the circumferential strain sensor extending along the circumference of a trouser leg of the trousers to measure a circumferential dimension of a user's leg; as well as A processor configured to: The circumferential dimension of the user's leg is obtained to generate circumference information of the user's leg.

21. The wearable device according to claim 20, wherein: The girth information includes girth change information within a first preset time period; The obtaining of the circumferential dimension of the user's leg to generate the circumference information of the user's leg includes: The circumferential dimension of the user's leg is monitored during the first preset time period to generate the circumference change information.

22. The wearable device according to claim 20, wherein: The sensor assembly further includes at least one longitudinal strain sensor, the longitudinal strain sensor extending along the length of the trouser leg to at least detect the shape of the user's leg; The processor is configured to: Based on the shape and the circumferential dimension of the user's leg, a model of the user's leg is generated.

23. The wearable device according to claim 20, wherein: The processor is configured to: Based on the circumferential dimension of the user's leg, a first training instruction suggestion is generated.

24. The wearable device according to claim 21, wherein: The wearable device further includes a first electrode module integrated on the pants, the first electrode module including at least two first electrodes, and the at least two first electrodes are spaced apart along the muscle fiber direction of the same muscle of the user's leg; The first electrode module is used to collect electromyographic signals of the muscles of the user's legs; The processor is used to generate a second training guidance suggestion based on the circumference change information of the user's legs and the electromyographic signal.

25. The wearable device according to claim 22, wherein: The processing circuit is configured to: Based on the shape and / or the circumferential size of the user's leg, posture information reflecting the posture of the user's leg is determined; the posture information includes the current posture of the user's leg and the duration of the user's leg being in the current posture.

26. The wearable device according to claim 25, wherein: The posture includes at least a preset bad posture, and determining the posture information reflecting the posture of the user's legs based on the shape and / or the circumferential size of the user's legs includes: In response to the current posture of the user's leg being the preset bad posture, determining a duration of time the user's leg is in the preset bad posture based on the shape and / or the circumferential size of the user's leg; Generate correction suggestions based on the length of time the user's legs are in a preset bad posture.

27. The wearable device according to claim 25, wherein: The posture includes at least a walking posture and a running posture; the processing circuit is configured to: In response to the current posture of the user's legs being the walking posture or the running posture, at least one of the number of steps, stride length, and cadence of the user is determined based on the shape and / or the circumferential size of the user's legs.

28. The wearable device according to claim 25, wherein: The posture includes at least an exercise posture; and the processing circuit is configured to: In response to the current posture of the user's legs being the exercise posture, the exercise motion of the user's legs is counted based on the shape and / or the circumferential size of the user's legs.

Images