CN105159049A - Wearable watch - Google Patents

Abstract

The embodiment of the present invention discloses a wearable watch, including: a pressure sensor, used to record the pressure around the watch in real time; a gyroscope module, used to record the orientation data of the user's movement; a speed sensor, used to record the user's movement trend; body temperature sensing module, used to record the real-time body temperature of the user; heart rate module, used to record the change of the user's heart rate; GPS module, used to obtain the user's location; ROM module, used to obtain the pressure sensor, gyroscope The data in the module, acceleration sensor, body temperature sensing module, heart rate module, and GPS module comprehensively judge whether it is in a drowning state; the communication module, when the ROM module determines that it is drowning, sends an integrated data to the rescue department. In the embodiment of the present invention, a safety device is added to the wearable watch, which is easy to popularize and can effectively monitor the occurrence of drowning accidents.

Description

A wearable watch

technical field

The invention relates to the technical field of computers, in particular to a wearable watch.

Background technique

In today's society, drowning tragedies always occur. With the advancement of science and technology, people begin to pay attention to how to monitor drowning events through existing technologies and prevent such tragedies to the greatest extent. However, from the perspective of the industry, such products are firstly less molded and secondly have limited monitoring functions. Most of them rely on depth and water pressure to judge drowning. At the same time, they also need to install a dedicated signal receiving device outside. If wearability is not considered, such products are more effective in monitoring a limited space. They are used in swimming pools, for example. , large baths and more.

Countries such as the United States and Switzerland have launched some of their own products, such as iSwimband's children's anti-drowning wearable real-time monitoring equipment, BlueFox swimming pool monitoring system and so on. Their principle is that the user wears a bracelet or headband, which are constantly transmitting signals to the receiving device. When the user loses consciousness due to drowning, the human body will sink by itself. When the body sinks to a depth H considered dangerous or the surrounding pressure exceeds a certain upper limit P, the event of maintaining such a state exceeds a predetermined T, the receiving device will determine that you are drowning, and at the same time call the police, and the rescuers will start rescue.

Through electronic equipment and sensors to monitor the pressure of the human body, water depth and other parameters, and continuously send out radio frequency signals, supplemented by receiving and early warning devices, real-time monitoring of users in the water can be realized.

The deficiency of these devices is also more obvious. Because of the need for auxiliary devices, they cannot monitor a larger area, such as a city. At the same time, their judgment condition is the depth and pressure of the drowning person, so the early warning is obviously not timely enough, and they cannot buy more time for saving lives. Such products are also prone to misjudgment. The biggest problem is that these devices are only suitable for those who are ready to swim, not universal.

Contents of the invention

The purpose of the invention is to propose a new wearable watch. When the watch is judged to be in water, the data obtained by the acceleration sensor, gyroscope sensor, heart rate and body temperature sensors installed in the watch can be used to obtain a more accurate early warning judgment through an algorithm. At the same time, an early warning is sent through the GPRS/GSM communication module, and GPS positioning is turned on to assist rescue.

In order to solve the above problems, the present invention proposes a wearable watch, comprising:

The pressure sensor is used to record the pressure around the watch in real time;

A gyroscope module for recording the orientation data of the user's movement;

Acceleration sensor for recording the trend of the user's movement;

The body temperature sensing module is used to record the real-time body temperature of the user;

The heart rate module is used to record the change of the user's heart rate;

GPS module, used to obtain the location of the user;

The ROM module is used to obtain data from the pressure sensor, gyroscope module, acceleration sensor, body temperature sensing module, heart rate module, and GPS module, and comprehensively judge whether it is in a drowning state;

The communication module sends an integrated data to the rescue department when the ROM module determines that it is drowning.

By implementing the embodiment of the present invention, through the integrated design, a safety device is added to the wearable watch, which is easy to popularize and can effectively monitor the occurrence of drowning accidents. Secondly, the application of GPRS communication module and GPS module can conveniently obtain the user's early warning signal and real-time status, can locate the user, and facilitate rescue. Cost savings can be achieved by relying on pre-existing signal towers.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural diagram of a wearable watch in an embodiment of the present invention;

Fig. 2 is a schematic diagram of connection of functional modules in a wearable watch in an embodiment of the present invention;

3 is a flow chart of the process of identifying drowning based on a wearable watch in an embodiment of the present invention;

Fig. 4 is a schematic diagram of the swing of the wearable watch in the embodiment of the present invention;

Fig. 5 is a linear schematic diagram of a gyroscope in a wearable watch in an embodiment of the present invention;

Fig. 6 is a three-dimensional schematic diagram of the acceleration sensor in the wearable watch in the embodiment of the present invention;

Fig. 7 is a schematic diagram of the acceleration dangerous point value in the embodiment of the present invention;

Fig. 8 is a schematic diagram of heart rate danger point values in an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The purpose of the invention is to propose a new wearable watch. When the watch is judged to be in water, the data obtained by the acceleration sensor, gyroscope sensor, heart rate and body temperature sensors installed in the watch can be used to obtain a more accurate early warning judgment through an algorithm. At the same time, an early warning is sent through the GPRS/GSM communication module, and GPS positioning is turned on to assist rescue.

The special feature of the present invention mainly lies in two aspects: firstly, we base on the motion characteristics of the drowning person when he just drowned, so that we can give an earlier warning without waiting until the person has sunk. The second is that by integrating the GPRS module and the GPS module, the smart watch can send help information and its own location like a mobile phone. This can greatly improve the scope of application of this device, because we no longer need a separate receiving device, and can directly rely on the signal tower of the existing communication company.

As shown in Figure 1, the integrated representation of the anti-drowning module in this watch we designed: including communication module, gyroscope module, GPS module, body temperature sensing module, heart rate sensing module, acceleration sensor, CPU, ROM storage, RAM Memory.

The following mainly introduces the functions of the main modules:

Pressure sensor: Real-time recording of the pressure around the watch.

Gyroscope module: record the orientation data of the user's movement.

Accelerometer: Records the trend of the user's movement.

Body temperature sensing module: Record the real-time body temperature of the user.

Heart rate module: record changes in the user's heart rate.

GPS module: obtain the user's location.

Communication module: if it is determined to be drowning, then send an integrated data to the rescue department.

The various modules work together through Figure 2:

1. In case of sudden drowning, the pressure sensor will first detect the pressure change, thus opening the monitoring mode in the water. When the user struggles, the gyroscope records the change in the orientation of the movement of the wrist, generally a regular up and down movement. Generally, within one second, a person can cycle violently once or twice, and cache the collected orientation change data to the ROM module.

2. The acceleration sensor stores the recorded acceleration data of the wrist into the ROM module.

3. Body temperature and heart rate also collect corresponding data and store them in the ROM module.

4. The CPU reads the data from the ROM and performs matching. If each direction of the XYZ axis of the azimuth can match the preset change trend, the gyroscope judges it as true.

5. The CPU reads the data from the ROM and performs matching. If the acceleration change meets the cycle trend of high to low to high, the acceleration sensor judges it as true.

6. The CPU reads the data from the ROM and performs matching. If the heart rate sensor suddenly rises and changes and maintains, the heart rate sensor determines that it is true.

7. If all three events are true, the CPU considers that danger has occurred, turns on the GPS module, and sends the location information and the information obtained in steps 1, 2, and 3 through the communication module.

8. The early warning center receives an alarm, notifies the nearest rescue force to carry out rescue, and monitors the user status changes in real time.

Description of the main algorithm: the algorithm is a data matching algorithm, and the difficulty lies in obtaining data that can be matched. We need to test through a large number of actual simulation experiments, and our predicted trends are as follows:

1. For the gyroscope: because the movement of the wrist during survival is repeated, because we found that in the movement of survival, the up and down swing is the most obvious. As for the movement of the watch (Figure 4), we have tested it many times. XYZ changes as follows:

X: From about 0.5 to 0, from 0 to about -0.5, take the change interval [-0.5,0.5]

Y: From -0.5 to 0, from 0 to 0.5, take the change interval [0.5,-0.5]

Z: The change is not obvious, and it can be considered to be unchanged under ideal conditions.

The changes in X and Y are simultaneous, the monotonicity is opposite, and the growth process is linear. Figure 5.

2. For the acceleration sensor, the movement of the wrist during survival is not only repeated, but also the wrist will definitely come out of the water when swinging, because the resistance in the air and in the water is different, and the change of human strength is linear, so the acceleration is in the water and in the water. The extremes in air are different. The main direction we take is the Z direction (as shown in Figure 6): the acceleration range in the air obtained from the test is: [11m/s2～13m/s2]

At the same time, it is estimated that the acceleration in water should be at most 8m/s2. (Not exactly, but the difference with acceleration in air is still significant.)

Suppose first in the air, the acceleration increases rapidly to 13, and then enters the water at t1, after a very short time, the maximum acceleration in water at t2 reaches 8, and gradually decreases. When t3 is reached, it means that the movement of the hand begins to reverse, and the form of movement remains unchanged.

3. For the heart rate sensor, we measure the point where there is a significant change. After consulting the data, when a person is suddenly in danger, the heart rate will increase by nearly twice, so we monitor such a process. When a jump occurs, then the T1 point It is when we judge the time of danger.

4. Explanation: Both Figure 6 and Figure 7 are dangerous at the origin, and the time t1 in the two figures is consistent, that is, they all enter the water from time t1. We consider the first two graphs to be unified. Figure 8 shows that danger occurs at time T1, and T1 is also equal to t1. In the end, all three diagrams are considered to be dangerous at t1.

In summary, through integrated design, adding safety devices to wearable watches is easy to promote and can effectively monitor the occurrence of drowning accidents. Secondly, the application of GPRS communication module and GPS module can conveniently obtain the user's early warning signal and real-time status, can locate the user, and facilitate rescue. Cost savings can be achieved by relying on pre-existing signal towers.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: Read-only memory (ROM, ReadOnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disk or optical disk, etc.

In addition, the wearable watch provided by the embodiment of the present invention has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiment is only used to help understand the method of the present invention. and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. limits.

Claims (1)

1. a wearable wrist-watch, is characterized in that, comprising:

Pressure transducer, for real time record wrist-watch ambient pressure situation;

Gyro module, for recording the bearing data of the motion of user;

Acceleration transducer, for recording the trend of user's motion;

Body temperature sensing module, for recording temperature in the real-time body of user;

Heart rate module, for recording user's changes in heart rate;

GPS module, for obtaining the position of user;

ROM module, for obtaining the data in pressure transducer, gyro module, acceleration transducer, body temperature sensing module, heart rate module, GPS module, whether comprehensive descision is in drowned state;

Communication module, when ROM module is judged to be drowned, then sends the data integrated to rescue department.