CN-116407102-B - Wearable device, physiological parameter measurement method thereof and electronic device

Abstract

The application provides a wearable device, a physiological parameter measuring method thereof and electronic equipment. The wearable device comprises a device body, a switching shaft, an air bag wristband and an air bag blocking piece, wherein the device body is provided with a first side and a second side which are oppositely arranged, the switching shaft is arranged on the second side, and a gap is formed between the connecting shaft and the second side. The gasbag wrist strap includes wrist strap and gasbag, and the gasbag is at least partly folded and is located one side of wrist strap, and the first end of gasbag wrist strap includes the first link of wrist strap and the second link of gasbag, and first link is used for fixed connection first side, and the second link is used for connecting the equipment main part. The air bag blocking piece comprises a blocking part and a driving part, wherein the driving part is used for driving the blocking part to move towards the direction close to the connecting shaft through the communication hole, and when the second end of the air bag wrist strap passes through the gap, the blocking part abuts against the connecting shaft to block the air bag. The wearable device is suitable for users around all wrists, and the user experience is good.

Inventors

• HUANG ZHENLONG
• FU XIAOYU

Assignees

• 华为技术有限公司

Dates

Publication Date

20260505

Application Date

20211231

Claims (20)

1. 1. A wearable device for measuring physiological parameters, comprising a device body, a connection shaft, an air bag wristband and an air bag blocking member, wherein: The device body has oppositely disposed first and second sides; the connecting shaft is arranged on the second side, and a gap is formed between the connecting shaft and the second side; the airbag wristband comprises a wristband and an airbag, wherein the airbag is at least partially overlapped on one side of the wristband, and the airbag wristband is provided with a first end and a second end; The first end comprises a first connecting end of the wrist strap and a second connecting end of the air bag, the first connecting end is used for fixedly connecting the first side, and the second connecting end is used for connecting the first side, so that the equipment main body can perform inflation or deflation operation on the air bag through the second connecting end; the second end passes through the gap and is fixed on one side of the wrist strap, which faces away from the air bag; The air bag blocking piece comprises a blocking part and a driving part, wherein the driving part is arranged in the equipment main body, the blocking part is positioned outside the equipment main body, and the driving part is used for driving the blocking part to move a preset distance towards a direction close to the connecting shaft, so that the blocking part can prop against the air bag wrist strap on the connecting shaft, and when the air bag is inflated, only part of the air bag between the second connecting end and the blocking part is inflated.
2. 2. The wearable apparatus according to claim 1, wherein the airbag blocking member further comprises a transmission portion, both ends of which are connected to the driving portion and the blocking portion, respectively, to transmit a driving force of the driving portion to the blocking portion.
3. 3. The wearable device according to claim 2, characterized in that a communication hole is provided on the device body, through which the transmission part passes.
4. 4. A wearable device according to any of claims 1-3, wherein the blocking portion comprises a first surface facing the connection shaft, the connection shaft comprises a second surface facing the blocking portion, and the balloon wristband is clamped between the first surface and the second surface when the blocking portion blocks the balloon wristband, the first surface and the second surface being adapted in shape.
5. 5. The wearable device of any of claims 1-3, further comprising a length sensing module comprising a first electrode pad, a second electrode pad, a circuit board, and a flexible resistive film, wherein, The flexible resistance film covers the surface of the side, away from the wrist strap, of the air bag; the first electrode plate is arranged on one side of the flexible resistor film close to the second connecting end and is electrically connected with the flexible resistor film; the second electrode sheet is fixed on the surface of the blocking part facing the air bag; the second electrode sheet is used for being electrically connected with the flexible resistor film when the blocking part blocks the air bag; The wearable device is used for determining the length of the air bag between the first electrode plate and the second electrode plate by obtaining the resistance of the flexible resistance film between the first electrode plate and the second electrode plate when the blocking part supports the air bag wrist strap on the connecting shaft.
6. 6. A wearable device according to any of claims 1-3, further comprising a barometric pressure sensor provided inside the device body for obtaining barometric pressure data of the balloon.
7. 7. A wearable device according to any of claims 1-3, further comprising an air pump located inside the device body for inflating the air bag.
8. 8. The wearable device of any of claims 1-3, further comprising a processor, the processor being located inside the device body, The processor is configured to provide a processor configured to, Controlling the driving part to drive the blocking part to move a preset distance towards the direction approaching to the connecting shaft; inflating the balloon; detecting the air pressure in the air bag, and acquiring air pressure data of the air bag from the beginning to the end of inflation; Determining the physiological parameter from the barometric pressure data; after the physiological parameter measurement is determined, deflating the air sac; and controlling the driving part to drive the blocking part to move in a direction away from the connecting shaft.
9. 9. The wearable device according to claim 8, wherein, Before the driving part is controlled to drive the blocking part to move a preset distance towards the direction close to the connecting shaft, the processor is further used for: determining that the wearable device is in a worn state.
10. 10. The wearable device according to claim 8, wherein, Before the driving part is controlled to drive the blocking part to move towards the direction approaching to the connecting shaft, the processor is further used for: determining that the balloon is connected to the device body.
11. 11. The wearable device according to claim 8, wherein, Before the driving part is controlled to drive the blocking part to move towards the direction approaching to the connecting shaft, the processor is further used for: it is determined that the predetermined time is reached.
12. 12. The wearable device according to claim 8, wherein, The wearable device further comprises an input means for receiving a user operation; Before the driving part is controlled to drive the blocking part to move towards the direction approaching to the connecting shaft, the processor is further used for: it is detected that the input device receives a first operation for initiating measurement of the physiological parameter.
13. 13. The wearable device according to claim 8, wherein, The wearable device also comprises a circuit board, a first electrode plate, a second electrode plate and a flexible resistance film, wherein, The flexible resistance film covers the surface of the side, away from the wrist strap, of the air bag; the first electrode plate is arranged on one side of the flexible resistor film close to the second connecting end and is electrically connected with the flexible resistor film; the second electrode sheet is fixed on the surface of the blocking part facing the air bag; the second electrode sheet is used for being electrically connected with the flexible resistor film when the blocking part blocks the air bag; After the control the drive part drives the blocking part to move a preset distance towards the direction close to the connecting shaft, the processor is further used for: Determining a current value of a current flowing through a first path, the first path being composed of the circuit board, the first electrode sheet, the second electrode sheet and at least part of the flexible resistive film; Determining a voltage value between the first electrode pad and the second electrode pad; determining a resistance value of at least a portion of the flexible resistive film from the current value and the voltage value; determining the length of the air bag between the first electrode plate and the second electrode plate according to the resistance value; The determining the physiological parameter according to the air pressure data specifically comprises: the physiological parameter is determined from the barometric pressure data and the length.
14. 14. The wearable device according to claim 8, wherein, The processor is further configured to control the blocking portion away from the balloon wristband after the measurement of the physiological parameter is completed.
15. 15. The wearable device according to claim 8, wherein, The processor is also used for controlling the air pump to deflate the air bag after the measurement of the physiological parameter is finished, and controlling the blocking part to be far away from the air bag wrist strap when the air pressure in the air bag is smaller than or equal to a preset threshold value.
16. 16. A method of measuring a physiological parameter based on the wearable device of claim 1, the method of measuring comprising: controlling the driving part to drive the blocking part to move a preset distance towards the direction approaching to the connecting shaft; inflating the balloon; detecting the air pressure in the air bag, and acquiring air pressure data of the air bag from the beginning to the end of inflation; Determining the physiological parameter from the barometric pressure data; after the physiological parameter measurement is determined, deflating the air sac; and controlling the driving part to drive the blocking part to move in a direction away from the connecting shaft.
17. 17. The method of measuring according to claim 16, wherein, Before the driving part is controlled to drive the blocking part to move towards the direction approaching to the connecting shaft, the method further comprises: determining that the wearable device is in a worn state.
18. 18. The method of measuring according to claim 16, wherein, Before the driving part is controlled to drive the blocking part to move towards the direction approaching to the connecting shaft, the method further comprises: determining that the balloon is connected to the device body.
19. 19. The method of measuring according to claim 16, wherein, Before the driving part is controlled to drive the blocking part to move towards the direction approaching to the connecting shaft, the method further comprises: it is determined that the predetermined time is reached.
20. 20. The method of measuring according to claim 16, wherein, The wearable device further comprises an input device, wherein the input device is used for receiving operation of a user, and before the driving part is controlled to drive the blocking part to move towards the direction approaching to the connecting shaft, the method further comprises the following steps: it is detected that the input device receives a first operation for initiating measurement of the physiological parameter.

Description

Wearable device, physiological parameter measurement method thereof and electronic device Technical Field The application relates to the technical field of electronic equipment, in particular to wearable equipment, a physiological parameter measuring method thereof and electronic equipment. Background The traditional electronic sphygmomanometer such as an arm type or wrist type sphygmomanometer is based on the oscillometric blood pressure measurement principle, has large volume and weight, can only be used for indoor single blood pressure measurement, and is not suitable for being worn for a long time. The electronic device for measuring blood pressure (such as a blood pressure watch or a blood pressure wrist strap) has smaller size and lighter weight, so that the electronic device can be worn by a user for a long time, and the requirement of detecting blood pressure for a long time in real time is met. The basic principle of the blood pressure watch for measuring blood pressure is that when the blood pressure watch is worn on the wrist of a user, an air bag on a watch band of the blood pressure watch covers radial artery and ulnar artery of the user at the same time. When the pump inflates the balloon, the balloon is inflated and compresses the artery. The sensor in the integrated blood pressure watch body is communicated with the air bag, and in the process of inflating and boosting the air bag, the sensor can extract pulse wave signals of the artery due to the fact that the artery is pressed by the air bag, and the blood pressure is calculated by utilizing the pulse wave signals obtained by combining algorithms. Because the wrists of different people are different, the single air bag length design cannot simultaneously meet the requirements of blood pressure measurement of all people and no coverage of the bottom of the watch. Disclosure of Invention The embodiment of the application provides a wearable device, a physiological parameter measuring method thereof and electronic equipment. The wearable device is suitable for users with different wrists, and improves the accuracy of physiological parameter detection. The application provides a wearable device. The wearable device includes a device body, a connection shaft, a balloon wristband, and a balloon blocker. The device body has a first side and a second side disposed opposite to each other, and the connection shaft is mounted on the second side with a gap formed therebetween. The gasbag wrist strap includes wrist strap and gasbag, and the gasbag is at least partly folded and is located one side of wrist strap, and the first end of gasbag wrist strap includes the first link of wrist strap and the second link of gasbag, and first link is used for fixed connection first side, and the second link is used for connecting the equipment main part. The device body is used for inflating or deflating the air bag. The air bag blocking piece comprises a blocking part and a driving part, wherein the driving part is arranged in the equipment main body, the blocking part is arranged outside the equipment main body, the driving part is used for driving the blocking part to move towards the direction close to the connecting shaft, when the second end of the air bag wrist strap passes through the gap, the blocking part can prop the air bag wrist strap against the connecting shaft to block the air bag, and the air bag is separated to form an effective section and an ineffective section. The effective section is the part from the first connecting end of the air bag to the supporting part of the air bag and the connecting shaft, and the ineffective section is the other part of the air bag. It will be appreciated that when the user wears the wearable device and initiates a blood pressure measurement, the blocking portion of the balloon blocking member will compress the balloon wristband and hold the balloon wristband against the connecting shaft such that the balloon is separated at the connecting shaft to form an active segment and an inactive segment. The effective section of the air bag can be inflated inside the wearable device, so that the air bag is inflated and presses the radial artery and the ulnar artery of a user to finish blood pressure measurement. It will be appreciated that the wearable device is premised on an accurate blood pressure value, with the bladder of the bladder wristband fully covering the radial and ulnar arteries of the user's wrist. However, if the air bag can cover radial artery and ulnar artery when wearing in order to meet the requirement of users with different wrist sizes, and meet the requirement of blood pressure measurement, for users with small wrist sizes, the air bag can cover redundant parts after the user wrist is covered by the air bag, and the redundant parts also need to be continuously wound on the wrist, so that the bottom of the main body of the device is inevitably involved, and the user experience is affected. Or the exist