CN115712233A - Anti-falling detection method and system for smart watch - Google Patents
Anti-falling detection method and system for smart watch Download PDFInfo
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- CN115712233A CN115712233A CN202110905457.7A CN202110905457A CN115712233A CN 115712233 A CN115712233 A CN 115712233A CN 202110905457 A CN202110905457 A CN 202110905457A CN 115712233 A CN115712233 A CN 115712233A
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Abstract
The anti-falling detection method and system for the smart watch comprise the steps that firstly, whether distance is close to the smart watch is detected through an infrared distance sensor, and if the distance is not close to the smart watch, the smart watch falls off; secondly, if the intelligent watch approaches the intelligent watch, detecting whether the heart rate data close to the surface of the object has an output value through a heart rate sensor, and if the heart rate data does not have the output value, dropping the intelligent watch; thirdly, if an output value exists, detecting and recording gravity coordinate data of the intelligent watch through a gravity sensor, comparing the gravity coordinate data with an average value of historical coordinate record values of the last n times to obtain an absolute value, and if the absolute value is smaller than or equal to a preset threshold value, enabling the intelligent watch to fall off, otherwise, enabling the intelligent watch to be worn normally; and fourthly, sending the detection result to a guardian end to enable the guardian to know the wearing condition in time. According to the invention, infrared distance sensing, heart rate detection and a gravity sensor are combined to carry out gradual troubleshooting detection, so that the detection accuracy is improved, and the falling-off detection function of the intelligent watch is effectively improved.
Description
Technical Field
The invention relates to the field of intelligent terminals, in particular to an anti-falling detection method of an intelligent watch.
Background
The smart watch is more and more widely used at present, and general smart watch all possesses functions such as location, chat a little, conversation, video conversation. However, the smart watch is worn in some specific crowds, and the anti-dropping function is required, such as children and the old, so that whether the watch is worn or not is required to be known, the state of the smart watch used by a wearer can be accurately monitored remotely, and if the watch is not worn, the wearer is required to be reminded to wear the watch through a guardian in time.
The anticreep that smart watch used on the market detects the function, and whether mainly adopts infrared distance response detection object to be close to, perhaps arranges the wire on the watchband and detects whether form the return circuit and inspect the anticreep, perhaps judges the anticreep within normal range with the heart rate detection in addition. The method finds that 100% accurate anti-falling detection has certain limitation in practical use.
Infrared distance sensing detects, when taking off the wrist-watch, if block apart from the response port with the object earlier, infrared distance sensing still can think that does not take off the wrist-watch because blocked by the object, leads to the erroneous judgement.
The lead detection is arranged on the watchband, when the lead is disconnected, the state of the master control GPIO is changed, and the situation that the watch is taken off or put on can be detected, so that the method is most effective. However, in the case of a common smart watch, in consideration of structural design, waterproof design, cost control, attractive appearance and other factors, the most conventional watchband is generally adopted instead of the watchband with the wires, so that the method cannot be used by common old people watches and children watches except special customized guests.
When using heart rate to detect, its principle is the photoelectric reflection principle, if facing to objects such as desktop, also can have the measurement output value, so this method if be used for the anticreep, only when aiming at the air, the detection anticreep that can be accurate, so all have certain limitation in sum.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an anti-falling detection method and system for an intelligent watch.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an anti-drop detection method of a smart watch comprises the following steps:
the method comprises the steps that firstly, whether distance induction is close or not is detected through an infrared distance sensor, and if the distance induction is not close, the intelligent watch falls off;
secondly, if the intelligent watch approaches to the object, detecting whether the heart rate data close to the surface of the object has an output value or not through a heart rate sensor, and if the heart rate data does not have the output value, enabling the intelligent watch to fall off;
thirdly, if an output value exists, detecting and recording gravity coordinate data of the intelligent watch through a gravity sensor, comparing the gravity coordinate data with an average value of historical coordinate record values of the last n times to obtain an absolute value, and if the absolute value is smaller than or equal to a preset threshold value, enabling the intelligent watch to fall off, otherwise, enabling the intelligent watch to be worn normally; wherein n is more than or equal to 1;
and fourthly, sending the detection result to a guardian end to enable the guardian to know the wearing condition in time.
In the first step, the anti-drop detection is periodically and circularly started through a timing clock.
In the third step, the preset threshold value is set to be 0.05-0.5m/s 2 。
In the fourth step, when the detection result is in a falling state, the communication module sends a falling alarm message to the background server, and the background server sends a message alarm to the guardian end; or when the monitoring terminal is worn normally, the communication module sends a wearing message to the background server, and the background server also pushes the message to the monitoring terminal.
An anti-drop detecting system of a smart watch, comprising:
the infrared distance sensor is used for detecting whether the distance sensor is close to the intelligent watch or not, and if not, the intelligent watch falls off;
the heart rate sensor is used for detecting whether the heart rate data close to the surface of the object has an output value or not, and if the heart rate data does not have the output value, the intelligent watch falls off;
the gravity sensor is used for detecting and recording gravity coordinate data of the intelligent watch, comparing the gravity coordinate data with the average value of the historical coordinate recorded values of the last n times to obtain an absolute value, and when the absolute value is smaller than or equal to a preset threshold value, the intelligent watch falls off, otherwise, the intelligent watch is worn normally; wherein n is more than or equal to 1;
the main control CPU controls the infrared distance sensor, the heart rate sensor and the gravity sensor to sequentially perform anti-drop detection;
and the communication module is used for sending the detection result to the guardian terminal so that the guardian can know the wearing condition in time.
The system further comprises: the timing clock is used for periodically and circularly starting the system by setting the interval time.
The system further comprises: and the background server sends the drop alarm message or the wearing message to the background server through the communication module, and then pushes the message to the guardian terminal.
The main control CPU adopts a Sharpe SL8521E chip.
The gravity sensor adopts a Bosey BMA250 sensor.
The infrared distance sensor and the heart rate sensor adopt two-in-one original phase PAH8002 type sensors.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an anti-falling detection method of an intelligent watch, which combines infrared distance sensing, heart rate detection and a gravity sensor to carry out stepwise troubleshooting detection, so that the detection accuracy is improved, and the falling detection function of the intelligent watch is effectively improved; on the premise of not influencing the appearance of the watch and not increasing the cost of the whole machine, the problem of accurate detection of whether the intelligent watch is worn or not is well solved; meanwhile, if the watch of the wearer falls off, the watch can be timely notified to the guardian end, the guardian end reminds the wearer to wear the watch, or the guardian end can timely handle the problem found, and daily monitoring is facilitated.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced, wherein:
FIG. 1 is a flow chart of an anti-drop detection method according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a gravity coordinate system of a gravity sensor according to a preferred embodiment of the present invention;
fig. 3 is a graph showing the change of gravity coordinate data of the gravity sensor according to the preferred embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. In the preferred embodiments, the terms "upper", "lower", "left", "right", "middle" and "a" are used for descriptive purposes only and are not intended to limit the scope of the present invention, and the relative relationships thereof may be changed or modified without substantial change in technical content.
Referring to fig. 1, an anti-slip detection method for a smart watch according to a preferred embodiment of the present invention includes:
the method comprises the steps that firstly, whether a distance sensor of the intelligent watch is close to the intelligent watch is detected through an infrared distance sensor, if not, the intelligent watch falls off, and at the moment, the fact that a wearer does not normally wear the intelligent watch or takes off the intelligent watch is indicated; in order to save energy and power consumption, the smart watch may start the anti-drop detection periodically by timing the clock, for example, setting the clock to start the anti-drop detection every 5 minutes; or once the infrared distance sensor detects that the infrared distance sensor does not approach, namely when the sensing distance is interrupted, the anti-drop detection is started;
secondly, if the distance sensing of the infrared distance sensor is close to the object, detecting whether the heart rate data close to the surface of the object has an output value or not through the heart rate sensor, and if the heart rate data does not have the output value, the intelligent watch falls off; if the infrared distance sensor detects approach, the approach may be detected only when other objects shield distance sensing, and therefore further determination needs to be performed through other detection means; however, the heart rate sensor has a certain limitation, when some specific object surfaces are aligned, such as wooden surfaces, leather surfaces, etc., the heart rate sensor adopts a measurement method based on photoelectric reflection principle, so that the object surfaces may have heart rate data output values, and further determination is needed through other new detection means;
thirdly, detecting the output value by the heart rate sensor, detecting and recording X, Y, Z axle gravity coordinate data of the intelligent watch by the gravity sensor, comparing the data with the latest historical coordinate record value to obtain an absolute value, and when the absolute value is less than or equal to a preset threshold valueWhen the value is positive, the intelligent watch falls off, otherwise, the intelligent watch is worn normally; referring to fig. 2 and 3, the gravity sensor can obtain different X, Y, Z axial gravity coordinate data by analyzing different postures of the wearer, such as sitting, squatting, standing, lying, running, walking and sleeping, a constantly changing curve graph, and then comparing the data with the latest historical coordinate record value, if the data are always in a relatively absolute static state, the absolute value is very small, which indicates that the wearer does not normally wear the watch or takes off the watch, and the preset threshold is usually set to be 0.15m/s 2 Setting a preset threshold value according to the actual situation of the wearer; in addition, the comparison can be performed with the average value of the historical coordinate record values of the latest n times, wherein n is 2, 3, 4 and 5.
Fourthly, when the watch is in the falling state, the intelligent watch sends a falling alarm message to the guardian end, so that the guardian can contact the wearer in time or perform the next processing;
or when the intelligent watch is normally worn, the intelligent watch can also send the wearing message to the guardian end, the guardian can check the state of the current wearer, and the position, the heart rate, the blood oxygen, the body temperature and other physiological indexes of the wearer can be actively or regularly inquired at the moment, so that the situation of the wearer can be known at any time, and the monitoring is well carried out.
Further, the smart watch can send messages to the background server through communication modules such as the 4G, the background server pushes the messages to the guardian end, the guardian end can be an APP on the smart terminal, and the APP makes corresponding prompt actions to remind the guardian to check the messages and further process the messages.
The invention also provides an anti-drop detection system of the intelligent watch, which comprises:
the infrared distance sensor is used for detecting whether the distance induction of the intelligent watch approaches, and if not, the intelligent watch falls off;
the heart rate sensor is used for detecting whether the heart rate data close to the surface of the object has an output value or not, and if the heart rate data does not have the output value, the intelligent watch falls off;
the gravity sensor is used for detecting and recording X, Y, Z shaft gravity coordinate data of the intelligent watch, comparing the data with the historical coordinate record value of the last n times to obtain an absolute value, and falling off the intelligent watch when the absolute value is smaller than or equal to a preset threshold value, otherwise, wearing the intelligent watch normally; wherein n is more than or equal to 1;
the main control CPU controls the infrared distance sensor, the heart rate sensor and the gravity sensor to sequentially perform anti-drop detection;
when the communication module is in a falling state, the main control CPU controls the communication module to send a falling alarm message to the guardian end, so that the guardian can contact the wearer in time to perform the next processing; when the health care shoes are worn normally, the main control CPU can also control the communication module to send the wearing message to the guardian end, the guardian can check the state of the current wearer, and at the moment, the position, the heart rate, the blood oxygen, the body temperature and other physiological indexes of the wearer are actively or regularly inquired, so that the condition of the wearer is known at any time, and the monitoring is well carried out.
The system further comprises: the timing clock controls the regular start of the system by setting the interval time. For example, the anti-detachment detection is started every 5 minutes at a set interval time, which may be 1 minute, 10 minutes, 15 minutes, 30 minutes, or the like, depending on the actual situation.
The system further comprises: and the background server sends the message to the background server by the communication module, and then pushes the message to the guardian terminal.
The main control CPU can adopt a Shakei SL8521E chip to operate an android4.4 system and can support communication modes such as 4G, WIFI and Bluetooth.
The communication module can adopt a 3G, 4G, 5G, WIFI or a Bluetooth module and the like.
The gravity sensor can adopt a Boshi BMA250 type sensor and has the characteristics of low power consumption, step counting by hardware, high precision and the like.
Infrared distance sensor and heart rate sensor can adopt former looks PAH8002 model sensor jointly, have distance response and heart rate and detect two unification functions, low power dissipation, precision height.
A smart watch further devised in a preferred embodiment of the present invention includes: the anti-dropping detection system detects whether the intelligent watch of the wearer drops or not through the system, so that the guardian can know the wearing condition in time and monitor the intelligent watch.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any indirect modifications, equivalent changes and modifications made by the technical essence of the present invention to the above embodiment by any person skilled in the art are still within the scope of the technical solution of the present invention.
Claims (10)
1. An anti-drop detection method of a smart watch is characterized by comprising the following steps:
firstly, detecting whether distance induction is close or not through an infrared distance sensor, and if not, enabling the intelligent watch to fall off;
secondly, if the intelligent watch approaches the intelligent watch, detecting whether the heart rate data close to the surface of the object has an output value through a heart rate sensor, and if the heart rate data does not have the output value, dropping the intelligent watch;
thirdly, if an output value exists, detecting and recording gravity coordinate data of the intelligent watch through a gravity sensor, comparing the gravity coordinate data with an average value of historical coordinate record values of the last n times to obtain an absolute value, and if the absolute value is smaller than or equal to a preset threshold value, enabling the intelligent watch to fall off, otherwise, enabling the intelligent watch to be worn normally; wherein n is more than or equal to 1;
and fourthly, sending the detection result to a guardian terminal.
2. The anti-drop detection method for a smart watch according to claim 1, wherein in the first step, the anti-drop detection is periodically and cyclically started by a timing clock.
3. The anti-drop detection method for smartwatch according to claim 1, wherein in the third step, the preset threshold is set to 0.05-0.5m/s 2 。
4. The anti-drop detection method of the smart watch according to claim 1, wherein in the fourth step, when the detection result is in a drop state, the communication module sends a drop alarm message to the background server, and the background server pushes the message alarm to the guardian; or when the system is worn normally, the communication module sends a wearing message to the background server, and the background server pushes the message to the guardian terminal.
5. The utility model provides an anticreep detecting system of intelligence wrist-watch which characterized in that includes:
the infrared distance sensor is used for detecting whether the distance sensor approaches, and if not, the intelligent watch falls off;
the heart rate sensor is used for detecting whether the heart rate data close to the surface of the object has an output value or not, and if the heart rate data does not have the output value, the intelligent watch falls off;
the gravity sensor is used for detecting and recording gravity coordinate data of the intelligent watch, comparing the gravity coordinate data with the average value of the historical coordinate recorded values of the last n times to obtain an absolute value, and when the absolute value is smaller than or equal to a preset threshold value, the intelligent watch falls off, otherwise, the intelligent watch is worn normally; wherein n is more than or equal to 1;
the main control CPU controls the infrared distance sensor, the heart rate sensor and the gravity sensor to sequentially perform anti-drop detection;
and the communication module is used for sending the detection result to the guardian terminal.
6. The anti-drop detection system for smartwatches according to claim 5, characterized in that the system further comprises: the timing clock is used for periodically and circularly starting the system by setting the interval time.
7. The drop-off prevention detection system for a smart watch of claim 5, further comprising: and the background server sends the drop alarm message or the wearing message to the background server through the communication module, and then pushes the message to the guardian terminal.
8. The anti-drop detection system of a smart watch according to claim 5, wherein said main control CPU employs a spread-sharp SL8521E chip.
9. The anti-slip detection system for a smart watch of claim 5, wherein said gravity sensor is a Bosch BMA250 model sensor.
10. The anti-slip detection system for a smart watch of claim 5, wherein the infrared distance sensor and the heart rate sensor are two-in-one original phase PAH8002 type sensors.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116224387A (en) * | 2023-05-09 | 2023-06-06 | 深圳市易赛通信技术有限公司 | Positioning method, device and equipment of wearable equipment and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116224387A (en) * | 2023-05-09 | 2023-06-06 | 深圳市易赛通信技术有限公司 | Positioning method, device and equipment of wearable equipment and storage medium |
| CN116224387B (en) * | 2023-05-09 | 2023-07-07 | 深圳市易赛通信技术有限公司 | Positioning method, device and equipment of wearable equipment and storage medium |
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