Knee pad with heating and falling alarm functions

Abstract

The utility model provides a kneecap with heating and falling alarm functions, which relates to the field of kneecaps and comprises an outer wireless charging coil transmitting module, a middle built-in sensor layer and an inner cushioning and warming layer. The middle built-in sensor layer comprises an MCU controller, a temperature / humidity sensor, a wireless charging coil receiving module, an electric heating wire, a GPS sensor and an acceleration inclination angle sensor. The outer-layer wireless charging coil can be placed indoors and connected with a power supply for charging; and the middle layer, the MCU controller, the temperature / humidity sensor, the wireless charging coil receiving module, the electric heating wire, the GPS sensor and the acceleration inclination angle sensor are electrically connected with the MCU controller. The cotton material is added into the inner layer, so that the warm-keeping effect and the use comfort are improved. The three-layer structure can realize the functions of heating, sending information alarm to an upper computer after falling down and wireless charging on the premise of ensuring normal use of the kneecap.

Description

Technical Field

[0001] The utility model relates to the field of warm-keeping knee pad technology and safety alarm, in particular to a knee pad with heating and falling alarm functions. Background Art

[0002] In the prior art, there is no heating device inside the knee pads for keeping warm in winter, and the warmth can only be kept by cotton. Some knee pads also have built-in heating devices, but due to their built-in batteries, there are safety hazards when used in humid environments. In winter, when the roads are slippery, it is easy for the elderly to fall and other dangerous events. In the prior art, fall alarms are mostly implemented by button alarm calls, but considering that the elderly may lose their ability to move after falling, this alarm method has certain limitations. Utility Model Content

[0003] In order to solve the problem that the knee pad in the prior art needs to be powered by a built-in battery when heated, which poses a potential safety hazard, as well as the safety problem of elderly people falling when traveling in winter, the utility model provides a knee pad with heating and fall alarm functions, the knee pad comprising: an outer layer, a middle layer and an inner layer, the outer surface of the middle layer is connected to the outer layer, and the inner surface of the middle layer is connected to the inner layer; the outer layer comprises a wireless charging coil transmitting module, the middle layer comprises a temperature / humidity sensor, an MCU controller, a wireless charging coil receiving module, a heating wire, a GPS sensor and an acceleration tilt angle sensor built therein, and the temperature / humidity sensor, the wireless charging coil receiving module, the heating wire, the GPS sensor and the acceleration tilt angle sensor are all electrically connected to the MCU controller;

[0004] The wireless charging coil transmitting module is used to supply power to the wireless charging coil receiving module;

[0005] The wireless charging coil receiving module is used to power the MCU controller and the heating wire;

[0006] The heating wire is used to heat the knee pad;

[0007] The temperature / humidity sensor is used to monitor the temperature / humidity data and send it to the MCU controller;

[0008] The GPS sensor is used to monitor the user's location information and send it to the MCU controller;

[0009] The acceleration and tilt angle sensor is used to monitor the acceleration and angle data and send them to the MCU controller;

[0010] The MCU controller is used to send temperature / humidity data, command information, and location information to the wearable device, and compare the acceleration data and angle data with the preset acceleration threshold and preset angle threshold to determine whether the user has fallen. It is also used to send the location information to the guardian's mobile phone to locate the user's fall location.

[0011] Compared with the prior art, the present invention has significant advantages and beneficial effects, which are specifically embodied in the following aspects:

[0012] 1. By improving the structure of the existing knee pad and giving it multiple functions, it can be powered by the combination of the outer layer and the middle layer of the knee pad, and at the same time it can monitor the fall event and send instructions to the emergency contact to alarm.

[0013] 2. The kneepad is used in conjunction with the wearable device APP. The temperature / humidity information inside the kneepad can be viewed through the wearable device, and the wearable device can be used to send instructions to the MCU controller to control the heating temperature of the kneepad. At the same time, the microcontroller determines whether a fall event has occurred by reading the acceleration and angle data of the acceleration tilt angle sensor and comparing it with the set threshold. When a fall event occurs, the MCU controller can send instructions to the wearable device, and the wearable device can eliminate the danger by dialing the emergency contact number and sending the GPS location address to the emergency contact.

[0014] 3. Compared with the heating knee pad with built-in battery, this new model greatly improves safety and prevents the battery from causing safety hazards in high temperature and humid environment. Compared with the knee pad with warming function, this new model adds the function of fall monitoring and alarming emergency contacts and sending GPS address, which improves the safety of the elderly when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the outer layer, middle layer and inner layer structure of the knee pad in the embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the middle layer of the knee pad in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the control system structure of the kneepad with heating and fall alarm functions in an embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the MCU controller in the embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of a wireless charging method between a wireless charging coil transmitting module and a wireless charging coil receiving module in an embodiment of the present utility model;

[0020] Figure 6 This is a wiring diagram of some pins of the acceleration tilt angle sensor and the MCU controller in the embodiment of the utility model.

[0021] Reference numerals:

[0022] 1-outer layer; 2-middle layer; 3-inner layer; 4-wearable device; 11-temperature / humidity sensor; 12-MCU controller; 13-wireless charging receiving module; 14-wireless charging coil transmitting module; 15-heating wire; 16-GPS sensor; 17-acceleration tilt angle sensor; 211-first hook surface Velcro; 212-second hook surface Velcro; 221-first fur surface Velcro; 222-second fur surface Velcro; 223-third fur surface Velcro; 23-built-in cotton; 31-control module; 32-judgment module; 33-storage module; 34-Bluetooth module; 35-sending module; 36-receiving module. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] See also Figure 1-6 As shown, an embodiment of the utility model provides a kneepad with heating and fall alarm functions, the kneepad includes an outer layer 1, a middle layer 2, and an inner layer 3, the outer layer 1 is connected to the outer surface of the middle layer 2 by a first fleece-surface Velcro 221 and a second hook-surface Velcro 212, the inner layer 3 is connected to the inner surface of the middle layer 2 by a third fleece-surface Velcro 223 and a second hook-surface Velcro 212, the first hook-surface Velcro 211 and the second hook-surface Velcro 222 are connected to fix the kneepad on the user's leg.

[0025] The middle layer 2 of the knee pad includes an MCU controller 12 built into the layer, a temperature / humidity sensor 11, a wireless charging coil receiving module 13, a heating wire 15, a GPS sensor 16 and an acceleration tilt angle sensor 17; the outer layer 1 of the knee pad includes a wireless charging coil transmitting module 14 built into the layer, and the outer layer 1 of the knee pad can be placed indoors and connected to a power source for charging, and the power supply voltage is 220V; the inner layer 3 of the knee pad is filled with cotton 23, which plays a role in heat preservation. In this embodiment, the MCU controller 12 is a single-chip microcomputer ESP32-WROOM. The single-chip microcomputer ESP32-WROOM is used as a control chip, which is small in size, low in price, and has a built-in Bluetooth module for easy control and management. The management chip of the wireless charging coil transmitting module 14 is TIbq500215. The management chip of the wireless charging coil receiving module 13 is TIbq51025. As shown Figure 5 As shown, the wireless charging coil receiving module 13 is located in the middle layer 2 of the knee pad, and the wireless charging coil transmitting module 14 is located in the outer layer 1 of the knee pad. Figure 6As shown, the acceleration tilt angle sensor 17 is an ADXL345 sensor, and the pins SCL and SDA of the ADXL345 sensor are connected to the pins GPIO22 and GPIO21 of the MCU controller respectively. The outer layer 1, the middle layer 2, and the inner layer 3 of the knee pad are all made of leather.

[0026] When the outer layer 1 of the knee pad is connected to the middle layer 2 of the knee pad, the wireless charging coil transmitting module 14 in the outer layer 1 supplies power to the wireless charging coil receiving module 13 in the middle layer 2 .

[0027] It should be further explained that wireless charging technology refers to a device that uses the principle of electromagnetic wave induction for charging. The principle is similar to that of a transformer. In this embodiment, a wireless charging coil transmitting module 14 and a wireless charging coil receiving module 13 are respectively provided at the transmitting and receiving ends. The wireless charging coil transmitting module 14 at the transmitting end is connected to a wired power supply to generate an electromagnetic signal, and the wireless charging coil receiving module 13 at the receiving end can sense the electromagnetic signal at the transmitting end, thereby generating current for charging.

[0028] The temperature / humidity sensor 11 , the wireless charging coil receiving module 13 , the heating wire 15 , the acceleration tilt angle sensor 17 and the GPS sensor 16 are all electrically connected to the MCU controller 12 , and the wireless charging coil receiving module 14 supplies power to the MCU controller 12 and the heating wire 15 .

[0029] The heating wire 15 heats the knee pad under the action of the MCU controller 12. The MCU controller 12 receives data monitored by the temperature / humidity sensor 11, the acceleration tilt angle sensor 17 and the GPS sensor 16. When necessary, the MCU controller 12 sends the collected information to the wearable device 4 through the Bluetooth module 34.

[0030] It should be noted that a program is written on the MCU controller 12 to realize the functions of heating and fall warning, which is the existing technology. When the MCU controller 12 reads and runs, the heating wire 15 is used to heat the knee pad, and the acceleration data and the angle data are compared with the preset acceleration threshold and the preset angle threshold respectively to determine whether the user has fallen. If the preset acceleration threshold and the preset angle threshold are exceeded, it means that the user has fallen. At the same time, the location information is sent to the guardian's mobile phone to locate the user's fall location, so as to realize the heating of the cotton knee pad and the monitoring of fall events.

[0031] Therefore, through the wireless charging coil transmitting module 13 and the wireless charging coil receiving module 14, the functional modules of the knee pad can be powered, and the heating wire 15 is controlled by the MCU controller 12 to heat the cotton knee pad, thereby achieving the required heating temperature, and the temperature and humidity data collected by the temperature / humidity sensor 11 inside the cotton knee pad are transmitted in real time to the display device of the wearable device 4, so that the user can view it in time.

[0032] Specifically, in the embodiment of the present utility model, the MCU controller 12 is provided with a driving circuit, the driving circuit is electrically connected to the heating wire 15, and the MCU controller 12 controls the heating power of the heating wire 15 through the driving circuit. Figure 4 As shown, the MCU controller 12 specifically includes:

[0033] The control module 31 is used to control the switching drive circuit to adjust the heating power of the heating wire 16; at the same time, when a fall event occurs, the GPS sensor 16 is controlled to send the position information to the wearable device 4;

[0034] A judgment module 32, used to compare the value of the acceleration tilt angle sensor 17 with a given threshold value to determine whether the user has fallen;

[0035] The storage module 33 is used to store the temperature and humidity data collected by the temperature / humidity sensor 11, the acceleration and angle data of the acceleration tilt angle sensor 17, and the position data of the GPS sensor 16;

[0036] A Bluetooth module 34, used to implement communication 4 between the MCU controller 12 and the wearable device;

[0037] A sending module 35 is used to send temperature and humidity data, location data and command information to the wearable device via Bluetooth;

[0038] The receiving module 36 receives the instruction sent by the wearable device 4 via Bluetooth.

[0039] In the embodiment of the present utility model, the wearable device 4 is any one of a mobile phone, a bracelet, and a watch.

[0040] Therefore, the wearable device 4 can check the temperature and humidity of the knee pad in time and make timely feedback and adjustments. It can also contact the set emergency contact when a fall occurs and send the location information to the emergency contact.

[0041] Although the disclosure is as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A kneepad with heating and fall alarm functions, characterized in that: The kneepad comprises an outer layer (1), a middle layer (2) and an inner layer (3), wherein the outer surface of the middle layer (2) is connected to the outer layer (1), and the inner surface of the middle layer (2) is connected to the inner layer (3); the outer layer (1) comprises a wireless charging coil transmitting module (14), and the middle layer (2) comprises a temperature / humidity sensor (11), an MCU controller (12), a wireless charging coil receiving module (13), a heating wire (15), a GPS sensor (16) and an acceleration tilt angle sensor (17) built therein, wherein the temperature / humidity sensor (11), the wireless charging coil receiving module (13), the heating wire (15), the GPS sensor (16) and the acceleration tilt angle sensor (17) are all electrically connected to the MCU controller (12); The wireless charging coil transmitting module (14) is used to supply power to the wireless charging coil receiving module (13); The wireless charging coil receiving module (13) is used to supply power to the MCU controller (12) and the heating wire (15); The electric heating wire (15) is used to heat the knee pad; The temperature / humidity sensor (11) is used to monitor the temperature / humidity data and send it to the MCU controller (12); The GPS sensor (16) is used to monitor the user's location information and send it to the MCU controller (12); The acceleration tilt angle sensor (17) is used to monitor acceleration and angle data and send them to the MCU controller (12); The MCU controller (12) is used to send temperature / humidity data, instruction information, and location information to the wearable device (4), compare the acceleration data and angle data with a preset acceleration threshold and a preset angle threshold respectively to determine whether the user has fallen, and at the same time send the location information to the guardian's mobile phone to locate the user's fall location.

2. The kneepad with heating and fall alarm functions according to claim 1, characterized in that: The MCU controller (12) is provided with a drive circuit, which is connected to the heating wire (15). The MCU controller (12) is used to control the power of the heating wire (15) through the drive circuit.

3. The kneepad with heating and fall alarm functions according to claim 1, characterized in that: The MCU (12) controller comprises: A control module (31) for controlling the switching drive circuit to adjust the heating power of the heating wire (15); A judgment module (32) is used to compare the value of the acceleration tilt angle sensor (17) with a given threshold value to judge whether the user has fallen; A storage module (33) for storing temperature / humidity data collected by the temperature / humidity sensor (11), acceleration and angle data collected by the acceleration tilt angle sensor (17), and position data collected by the GPS sensor (16); A Bluetooth module (34) for implementing communication between the MCU controller (12) and the wearable device (4); A sending module (35), used for sending temperature / humidity data, location data and instruction information to the wearable device (4); The receiving module (36) is used to receive instruction information sent by the wearable device (4).

4. The kneepad with heating and fall alarm functions according to claim 1, characterized in that: The wearable device (4) is any one of a mobile phone, a bracelet, and a watch.

5. The knee pad with heating and fall alarm function according to claim 1, characterized in that: The MCU controller (12) is a single-chip microcomputer ESP32-WROOM.

6. The kneepad with heating and fall alarm functions according to claim 1, characterized in that: The management chip of the wireless charging coil transmitting module (14) is TIbq500215.

7. The kneepad with heating and fall alarm functions according to claim 1, characterized in that: The management chip of the wireless charging coil receiving module (13) is TIbq51025.

8. The knee pad with heating and fall alarm function according to claim 1, characterized in that: The surface of the outer layer (1), the surface of the middle layer (2), and the surface of the inner layer (3) are all made of leather, and the inner layer (3) is filled with cotton (23).

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