WO2018035869A1 - 检测穿戴设备脱落的方法和装置 - Google Patents
检测穿戴设备脱落的方法和装置 Download PDFInfo
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- WO2018035869A1 WO2018035869A1 PCT/CN2016/097014 CN2016097014W WO2018035869A1 WO 2018035869 A1 WO2018035869 A1 WO 2018035869A1 CN 2016097014 W CN2016097014 W CN 2016097014W WO 2018035869 A1 WO2018035869 A1 WO 2018035869A1
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- acceleration
- wearable device
- detecting
- falling
- vertical direction
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000000926 separation method Methods 0.000 title abstract 5
- 230000001133 acceleration Effects 0.000 claims abstract description 267
- 230000005484 gravity Effects 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 abstract description 38
- 230000008859 change Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 16
- 238000012545 processing Methods 0.000 description 9
- 238000005265 energy consumption Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000003068 static effect Effects 0.000 description 5
- 238000010009 beating Methods 0.000 description 4
- 238000004590 computer program Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 3
- 241001674044 Blattodea Species 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K29/00—Other apparatus for animal husbandry
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
Definitions
- the present invention relates to the field of pet smart device technology, and more particularly to a method and apparatus for detecting wear off of a wearable device.
- the wearable device When the wearable device is worn on the pet, the pet may feel uncomfortable, and thus will try to break free from the wearable device, so that the wearable device often falls off from the pet. If the user (the breeder) cannot find it, it will cause the wearable device to be lost, thereby causing unnecessary loss to the user.
- the main object of the present invention is to provide a method and apparatus for detecting the falling off of a wearable device, aiming at solving the technical problem that the user cannot find that the wearable device is detached from the pet and the wearable device is lost.
- the present invention provides a method for detecting wear-off of a wearable device, the method comprising the steps of:
- the step of detecting, by the acceleration sensor, whether the wearable device is in a falling state includes
- the step of detecting, by the acceleration sensor, whether the wearable device is in a falling state includes
- the step of detecting, by the acceleration sensor, whether the wearable device is in a falling state includes
- the first interval ⁇ length is greater than the second interval ⁇ length, N ⁇ 2.
- the step of detecting whether the wearable device is in a stationary state includes:
- the step of detecting whether the wearable device is in a stationary state comprises:
- the step of detecting, by the acceleration sensor, the first acceleration of the wearable device in a vertical direction and the second acceleration in a horizontal direction comprises: [0027] detecting, by the acceleration sensor, a first acceleration in a vertical direction and a second acceleration in a horizontal direction of the wearable device at a first interval length.
- the vertical direction is a Z-axis direction
- the horizontal direction includes an X-axis direction and/or a Y-axis direction.
- the step of performing the fall-off alert comprises: sending the alert information to the designated device.
- the designated device is a mobile terminal that establishes a wireless communication connection with the wearable device.
- the present invention also provides a device for detecting the falling off of a wearable device, the device comprising:
- the first detecting module is configured to detect, by the acceleration sensor, whether the wearing device is in a falling state
- the second detecting module is configured to: when the wearing device is in a falling state, detecting whether the wearing device is in a stationary state after the interval is preset;
- the fall-off warning module is configured to determine that the wearable device is detached when the wearable device is in a stationary state, and performs a fall-off warning.
- the first detecting module is configured to:
- the first detecting module is configured to:
- the first detecting module is configured to:
- the second detecting module is configured to:
- the second detecting module is configured to:
- the second detecting module is configured to:
- the fall-off alert module is configured to: send alert information to the designated device.
- a method for detecting the falling off of a wearable device detects whether the wearable device is in a falling state by an acceleration sensor, and detects whether the wearable device enters a stationary state after being in a falling state after being in a falling state.
- the wearable device has experienced a falling state and a stationary state, it is determined that the wearable device is detached, and the wearer is prevented from falling off.
- the state of the change of the state is performed, and the detection accuracy is high, and it is not easy to cause misjudgment and cause interference to the user.
- the wearable device is detached, the user can be alerted to the user, so that the user can retrieve the wearable device. Prevent loss.
- FIG. 1 is a flow chart showing a method of detecting a fall of a wearable device according to a first embodiment of the present invention
- FIG. 2 is a flowchart of a method of detecting a fall of a wearable device according to a second embodiment of the present invention
- FIG. 3 is a block diagram showing a device for detecting a fall of a wearable device according to a third embodiment of the present invention.
- FIG. 4 is a schematic diagram of a wearable device for a pet wearing in an embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of an optional wearable device according to an embodiment of the present invention.
- FIG. 6 is a schematic structural diagram of an optional wearable device according to an embodiment of the present invention
- 7 is a schematic diagram of a connection between a central processing unit and a 3D acceleration sensor in the wearable device of FIG. 6
- FIG. 8 is a circuit connection diagram of the 3D acceleration sensor of FIG.
- the wearable device falls off from the pet or the human body, it must undergo two states: first, a fall state, and then a static state.
- the general inventive concept of the embodiment of the present invention is: detecting the state of the wearable device, and determining that the wearable device is dropped when the wearable device has a falling state and a stationary state successively.
- FIG. 1 a method for detecting falling off of a wearable device according to a first embodiment of the present invention is proposed, and a wearable device is applied.
- the method includes the following steps:
- the wearable device detects whether the wearable device is in a falling state by the acceleration sensor.
- the wearable device according to the embodiment of the present invention mainly refers to a wearable device worn on a pet body. Of course, it can also be a wearable device worn on a human body, such as a wearable device worn on a child.
- a close button can be set on the wearable device, and the wearable device can be turned on or off by the close button.
- the device can automatically enter the drop detection mode, or the user can remotely control the wear device through the terminal device (such as a mobile terminal such as a mobile phone) to enter the fall detection mode.
- the terminal device such as a mobile terminal such as a mobile phone
- step S11 the falling state of the wearable device can be detected in the following manner:
- the first acceleration of the wearable device in the vertical direction may be detected by an acceleration sensor (such as a 3D acceleration sensor) or a fixed (circular) detection, when the first acceleration is equal to the gravitational acceleration. , determine that the wearable device is in a falling state. That is, as long as the first acceleration of the wearable device in the vertical direction is detected to be equal to the gravitational acceleration, the wearable device is considered to be in a free fall motion and is in a falling state.
- an acceleration sensor such as a 3D acceleration sensor
- a fixed (circular) detection when the first acceleration is equal to the gravitational acceleration.
- the first acceleration in the embodiment of the present invention is equal to the acceleration of gravity, and it should be understood that the first acceleration is approximately equal to the acceleration of gravity, as long as the value of the first acceleration is within the error range of the value of the gravity acceleration.
- the first acceleration is determined to be equal to the gravitational acceleration.
- the specific error range can be set according to actual needs.
- the first acceleration of the wearable device in the vertical direction may be detected by the acceleration sensor or the fixed acceleration; when the continuous acceleration is detected by N (N>2) times, the first acceleration is equal to the gravity acceleration ⁇ , It is determined that the wearable device is in a falling state. That is to say, it is only after detecting that the wearable device continues to perform free fall motion for a period of time, it is determined that the wearable device is in a falling state, thereby improving the accuracy of the judgment and preventing misjudgment. For example, when this method is used, it is possible to avoid misjudged the situation in which the pet is beating and falling down as the wearable device is in a falling state.
- the first acceleration of the wearing device in the vertical direction may be detected by the acceleration sensor at a first interval; when the first acceleration is equal to the gravitational acceleration ⁇ , the wearable device may be determined to have a falling trend. To further determine whether it is a drop state, continue to detect the first acceleration of the wearable device in the vertical direction at the second interval; and when the continuous N (N>2) times, the first acceleration is equal to the gravity acceleration. Determining that the wearable device is in a falling state; wherein the first interval length is longer than the second interval length. [0074] Since the wearable device falls from the pet to the ground, there is only a short day, so it is necessary to perform the acceleration detection at a very short interval.
- the first interval length may be set to be n (n>2) times or more of the second interval length; for example, the first interval length may be set to a millisecond level, and the second interval length may be set to a micro Second level.
- step S12 when it is detected that the wearable device is in a falling state, after the interval is preset (for example, after 1 second), it is estimated that the wearable device has fallen to the ground, and then the wearable device is detected to be at rest. status.
- the foregoing acceleration sensor is used to detect whether the wearable device is in a static state, and the following detection manners may be specifically adopted:
- the first acceleration in the vertical direction and the second acceleration in the horizontal direction of the wearable device may be detected or determined by the acceleration sensor; when the first acceleration and the second acceleration are both equal to 0 ⁇ , it is determined that the wearable device is at a standstill. That is, as long as it is detected that the first acceleration of the wearable device in the vertical direction and the second acceleration in the horizontal direction are equal to 0, it is considered that the wearable device has fallen to the ground and is at a standstill.
- first acceleration and the second acceleration are equal to 0, and it should be understood that the first acceleration and the second acceleration are approximately equal to 0, and the specific error range may be set according to actual needs.
- the first acceleration in the vertical direction and the second acceleration in the horizontal direction of the wearable device may be detected or determined by the acceleration sensor; when consecutive M (M>2) times are detected
- M (M>2) times The first acceleration and the second acceleration are both equal to 0 ⁇ , and it is determined that the wearable device is in a stationary state. That is to say, it is determined that the wearable device is in a stationary state only after detecting that the wearable device continues to be stationary for a period of time, thereby improving the accuracy of the judgment and preventing misjudgment.
- this method it is possible to avoid misjudging the scene in which the pet is beating and falling off instantaneously, and the wearable device is detached.
- the first acceleration in the vertical direction and the second acceleration in the horizontal direction of the wearable device may be detected by the acceleration sensor at the aforementioned first interval length. That is to say, before detecting that the wearable device has a falling tendency, the fixed detection is performed with the first interval of the longer interval; after detecting that the wearing device has a falling tendency, the second interval is performed with a shorter interval. After the wearable device is determined to be in a falling state, the first interval of the longer interval is restored to perform the fixed detection, thereby reducing the energy consumption.
- the speed sensor can also be used to detect whether the wearable device is in a stationary state.
- the detection mode is similar to that of the aforementioned acceleration sensor. It is only necessary to replace the detection parameter with the acceleration from the acceleration, and determine whether the first speed in the vertical direction and the second speed in the horizontal direction are equal to zero.
- detection by a level determines that the wearable device is at a standstill when the pointer of the level no longer jumps or the amplitude of the beat is less than the threshold ⁇ .
- the aforementioned vertical direction is the Z-axis direction
- the horizontal direction includes the X-axis direction and/or the Y-axis direction.
- the wearable device when it is detected that the wearing device has experienced the falling state and the stationary state, the wearable device is determined to fall from the pet body, and the falling off warning is immediately performed to notify the user that the wearing device has fallen off, so that the wearing device can be retrieved and worn. Equipment, to prevent loss.
- the user may be detached by the following two methods:
- Method 1 Sending alert information to a specified device, where the specified device refers to a device that establishes a wireless communication connection with the wearable device, and the device may be a mobile terminal or a portable terminal such as a mobile phone, a tablet, a notebook, or the like. It is a fixed terminal such as a personal computer or a television.
- the wireless communication connection includes a Bluetooth connection, a WIFI connection, a cellular network (i.e., mobile communication network) connection, and the like.
- the device may perform voice information (or alarm information), display visual information (such as text and/or image information), emit an optical signal, and/or emit a vibration signal to the user.
- voice information or alarm information
- display visual information such as text and/or image information
- emit an optical signal such as text and/or image information
- emit a vibration signal to the user.
- Method 2 directly emitting an acoustic signal and/or an optical signal to perform a fall-off warning.
- the acoustic signal can be an alarm Acoustic or voice information, the light signal is always bright or flashing, or change the color of the light.
- the foregoing two manners may also be combined to perform a fall-off alert to the user.
- the current position of the wearable device may be obtained by using a positioning device (such as GPS), and the location information is sent to the designated device, so that the user can quickly find the wearable device according to the location information.
- a positioning device such as GPS
- the method for detecting the falling off of the wearable device detects whether the wearable device is in a falling state by using an acceleration sensor, and then detects whether the wearable device enters a stationary state after being in a falling state, when the wearing device successively After experiencing the fall state and the standstill state, it is determined that the wearable device is detached, and the cockroach is detached.
- the state of the change of the state is performed, and the detection accuracy is high, and it is not easy to cause misjudgment and cause interference to the user.
- the wearable device is detached, the user can be alerted to the user, so that the user can retrieve the wearable device. Prevent loss.
- a method for detecting falling off of a wearable device according to a second embodiment of the present invention is provided.
- the method includes the following steps:
- step S21 The acceleration al in the Z-axis direction is detected by the 3D acceleration sensor with a spacing length tl. It is judged whether the acceleration al is equal to the gravitational acceleration g, and when it is equal to the gravitational acceleration ⁇ , step S22 is performed.
- a button can be set on the wearable device, and the wearable device can be turned on or off by the switch button.
- the wearable device When the wearable device is down, it can automatically enter the drop detection mode, or the user can remotely control the wearable device through the terminal device (such as a mobile terminal such as a mobile phone) to enter the fall detection mode.
- the terminal device such as a mobile terminal such as a mobile phone
- step S22 when it is first detected that the acceleration a1 in the Z-axis direction is equal to the gravitational acceleration g ⁇ , it is determined that the wearable device has a falling tendency, then the process proceeds to step S22, and the detection is continued to determine whether the wearable device is in a falling state. .
- the Z-axis direction is the vertical direction
- the acceleration al is the first acceleration
- the interval tl length t1 is the first interval length
- the fixed detection frequency is increased, that is, the interval length of the fixed detection is shortened, and the acceleration al in the Z-axis direction is continuously detected.
- the acceleration al is equal to the gravitational acceleration g ⁇ for consecutive N (N>2) times, it is determined that the wearable device is in a falling state.
- the value of N can be set according to actual needs.
- interval length t2 is the second interval length
- the interval length t1 may be set to be n (n>2) times or more of the interval length t2, or the interval length t1 may be set to the millisecond level. Set the interval length t2 to microseconds
- the recovery detecting length is the interval length tl, and the Z axis and the X axis are respectively detected.
- accelerations al, a2, a3 in the Y-axis direction When the accelerations al, a2, and a3 are both equal to 0 after continuous M (M ⁇ 2) times, it is determined that the wearable device is at rest and has fallen to the ground.
- the M value can be set according to actual needs.
- the wear detection is performed at intervals of a long interval tl before the wearable device has a falling tendency, thereby greatly reducing energy consumption and saving power.
- a device for detecting a fall of a wearable device according to a third embodiment of the present invention is provided.
- the device is applied to a wearable device, and includes a first detection module, a second detection module, and a fall-off warning module, where:
- the first detecting module is configured to detect whether the wearing device is in a falling state by the acceleration sensor. When it is detected that it is in a falling state, the second detecting module is notified. [0112] Specifically, the first detecting module can detect the falling state of the wearing device by:
- the first detecting module may detect the first acceleration of the wearing device in the vertical direction by an acceleration sensor (such as a 3D acceleration sensor), or when the first acceleration is equal to the gravity acceleration ⁇ , It is determined that the wearable device is in a falling state. That is, as long as it is detected that the first acceleration of the wearable device in the vertical direction is equal to the gravitational acceleration, the first detecting module considers that the wearing device is performing a free fall motion and is in a falling state.
- an acceleration sensor such as a 3D acceleration sensor
- the first detecting module may detect the first acceleration of the wearing device in the vertical direction by the acceleration sensor or the fixed detecting device; when the continuous acceleration is detected by N (N>2) times, the first acceleration is equal to The gravitational acceleration ⁇ determines that the wearable device is in a falling state. That is to say, the first detecting module determines that the wearing device is in a falling state only after detecting that the wearing device continues to perform the free falling motion for a period of time, thereby improving the accuracy of the judgment and preventing misjudgment. For example, when this method is used, it is possible to avoid misjudging the situation in which the pet is beating down to the wearable device being in a falling state.
- the first detecting module may detect the first acceleration of the wearing device in the vertical direction by using the acceleration sensor at a first interval; when detecting that the first acceleration is equal to the gravity acceleration, the wearable The device has a falling tendency.
- the first acceleration of the wearable device in the vertical direction is continuously detected at the second interval; when the first acceleration is detected continuously N (N>2) times Equal to the acceleration of gravity ⁇ , determining that the wearable device is in a falling state; wherein the first interval ⁇ is longer than the second interval ⁇ .
- the wearable device falls from the pet to the ground and has only a short time, it is necessary to perform the acceleration detection at a very short interval. However, before detecting that the wearable device has a tendency to fall, it is not necessary to perform the fixed detection at such a short interval, and the detection process is continuous until the wearable device has a tendency to fall, which has a great influence on the energy consumption. Therefore, by setting the first interval length and the second interval length, the wear detection is performed with a longer interval of the first interval before the wear device has a falling tendency, thereby greatly reducing energy consumption and saving power.
- the first interval length may be set to be n (n>2) times or more of the second interval length; for example, the first interval length may be set to a millisecond level, and the second interval length may be set to a micro Second level.
- the second detecting module is configured to detect whether the wearing device is in a stationary state after the wearable device is in a falling state, after the interval is preset. When the quiescent state is detected, the off alert module is notified. [0118] Specifically, when it is known that the wearable device is in a falling state, after the interval is preset (for example, after 1 second), it is estimated that the wearable device has fallen to the ground, and the second detecting module detects whether the wearable device detects At rest.
- the second detecting module continues to use the foregoing acceleration sensor to detect whether the wearing device is in a static state, and specifically, the following detecting manners may be adopted:
- the second detecting module may detect the first acceleration in the vertical direction and the second acceleration in the horizontal direction of the wearable device by the acceleration sensor, or determine the first acceleration and the first acceleration The two accelerations are equal to 0 ⁇ , and it is determined that the wearable device is at a standstill. That is, as long as it is detected that the first acceleration of the wearable device in the vertical direction and the second acceleration in the horizontal direction are equal to 0, the second detection module assumes that the wearable device has fallen to the ground and is at a standstill.
- the second detecting module may detect the first acceleration in the vertical direction and the second acceleration in the horizontal direction of the wearable device by the acceleration sensor or the fixed one; when continuous M (M>2)
- M M>2
- the first acceleration and the second acceleration are both equal to 0 ⁇ , and it is determined that the wearable device is in a stationary state. That is to say, it is determined that the wearable device is in a stationary state only after detecting that the wearable device continues to be stationary for a period of time, thereby improving the accuracy of the judgment and preventing misjudgment.
- this method it is possible to avoid misjudging the scene in which the pet is beating and falling to the moment and the wearer is detached.
- the second detecting module may detect, by the acceleration sensor, the first acceleration in the vertical direction and the second acceleration in the horizontal direction by the first interval length. That is, before detecting that the wearable device has a falling tendency, the first detecting module performs the fixed detecting with the first interval of the longer interval; when detecting that the wearing device has the falling tendency, the first detecting module is separated by the interval. The short second interval length is determined by the fixed detection; after determining that the wearing device is in the falling state, the second detecting module resumes the first interval length of the longer interval to perform the fixed detection, thereby reducing the energy consumption.
- the second detection module can also detect whether the wearable device is in a stationary state by a speed sensor.
- the detection mode is similar to that of the aforementioned acceleration sensor. It is only necessary to replace the detection parameter with the acceleration as the speed, and determine whether the first speed in the vertical direction and the second speed in the horizontal direction are equal to 0.
- the aforementioned vertical direction is the Z-axis direction
- the horizontal direction includes the X-axis direction and/or the Y-axis direction.
- the fall-off warning module is set to determine that the wearable device is detached when the wearable device is at a standstill, and the fall-off warning is performed.
- the falling warning module determines that the wearing device falls from the pet, and immediately removes the warning to notify the user that the wearing device has fallen off, thereby being able to retrieve the wearable device to prevent loss.
- the drop warning module can perform the offending warning to the user in the following two ways:
- the fall-off alert module sends alert information to a designated device, where the designated device refers to a device that establishes a wireless communication connection with the wearable device, and the device may be a mobile terminal, a mobile phone, a tablet, a notebook, or the like. It can also be a fixed terminal such as a personal computer or a television.
- the wireless communication connection includes a Bluetooth connection, a WIFI connection, a cellular network (i.e., mobile communication network) connection, and the like.
- the device may perform voice information (or alarm information), display visual information (such as text and/or image information), emit an optical signal, and/or emit a vibration signal to the user.
- voice information or alarm information
- display visual information such as text and/or image information
- emit an optical signal such as text and/or image information
- emit a vibration signal to the user.
- the fall-off warning module directly emits an acoustic signal and/or an optical signal to perform a fall-off warning.
- the acoustic signal may be an alarm sound or a voice signal, that is, the light is constantly lit or blinking, or the light color is changed.
- the foregoing two manners may also be combined to perform a fallback warning to the user.
- the fall-off warning module may further acquire the current position of the wearable device by using a positioning device (such as G PS), and send the location information to the designated device, so that the user can obtain the location information according to the location information. Quickly find the wearable device.
- a positioning device such as G PS
- the device for detecting the falling off of the wearable device detects whether the wearable device is in a falling state by using an acceleration sensor, and then detects whether the wearable device enters a static state after being in a falling state, when the wearing device successively After experiencing the fall state and the standstill state, it is determined that the wearable device is detached, and the cockroach is detached.
- the detection of the state change in the embodiment of the present invention is performed. The detection accuracy is high, it is not easy to cause misjudgment and cause interference to the user.
- the wearable device is detached, the user can be alerted to the user, so that the user can retrieve the wearable device and prevent the loss.
- the method and device for detecting the fall of a wearable device are applied to a wearable device.
- the wearing device mainly refers to a collar, a chest strap, and the like that are worn on a pet body, and can be fixed on the pet by a buckle (black part in the figure), and the pet often feels wearing the device. Uncomfortable, trying to get rid of it, causing the wearable device to fall off.
- the wearable device mainly includes a central processing unit, a storage unit, a button unit, a radio frequency transceiver unit, a radio frequency front end and an RF power amplifier unit, an RF antenna, a wireless fidelity/Bluetooth (WIFI/BT) unit, and a WIFI. /BT antenna, 3D acceleration sensor, etc.
- the central processing unit is the core of the wearable device and is set to control the individual unit modules.
- the storage unit is set to store data such as an application.
- the button unit is set to turn the wearable device on or off.
- the RF transceiver unit, the RF front end and the RF power amplifier unit and the RF antenna are set for cellular network communication, and the WIFI/BT unit and the WIFI/BT antenna are set for WIFI/Bluetooth communication.
- the 3D acceleration sensor is set to detect the acceleration values of the wearable device in the X-axis, Y-axis, and Z-axis directions.
- the 3D acceleration sensor and the central processing unit are connected by an I2C bus, and the central processing unit can read the acceleration values in the X-axis, Y-axis, and Z-axis directions on the 3D acceleration sensor through the I2C bus. .
- the 3D acceleration sensor first obtains an analog signal of the acceleration a in the X-axis, the Y-axis, and the Z-axis direction through the data selector (MUX), and then passes through Amplifier (Charge Amplifier) amplifies the analog signal, and performs analog-to-digital conversion through an analog-to-digital converter (A/D Converter) to obtain values of acceleration in the X-axis, Y-axis, and Z-axis directions, and the value can be
- the central processing unit is read through the I2C bus.
- the foregoing first detecting module, the second detecting module, and the drop-off warning unit may be integrated into the central processing unit, and the central processing unit detects whether the wearing device is detached by using the foregoing method.
- one or more applications are stored in the storage unit, the application is configured to be executed by the central processing unit, and the application is configured to perform the aforementioned method of detecting wear-off of the wearable device.
- the change characteristics of the acceleration in the X-axis, Y-axis, and Z-axis directions are detected to detect whether the wearable device is detached from the pet. When it falls off, it can alert the user, so that the user can retrieve the wearable device. Prevent loss.
- the present invention includes apparatus that is arranged to perform one or more of the operations described herein.
- These devices may be specially designed and manufactured for the required purposes, or may also include known devices in a general purpose computer.
- These devices have computer programs stored therein that are selectively activated or reconfigured.
- Such computer programs may be stored in a device (eg, computer) readable medium or in any type of medium suitable for storing electronic instructions and respectively coupled to a bus, including but not limited to any Types of disks (including floppy disks, hard disks, CDs, CD-ROMs, and magneto-optical disks), ROM (Read-Only Memory), RAM (Random Access Memory), EPROM (Erasable Programmable Read-Only)
- a readable medium includes any medium that is stored or transmitted by a device (e.g., a computer) in a readable form.
- each block of the block diagrams and/or block diagrams and/or flow diagrams can be implemented by computer program instructions, and/or in the block diagrams and/or block diagrams and/or flow diagrams. The combination of boxes.
- these computer program instructions can be implemented by a general purpose computer, a professional computer, or a processor of other programmable data processing methods, such that the processor is executed by a computer or other programmable data processing method.
- the block diagrams and/or block diagrams of the invention and/or the schemes specified in the blocks or blocks of the flow diagram are invented.
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Abstract
一种检测穿戴设备脱落的方法和装置,所述方法包括以下步骤:通过加速度传感器检测穿戴设备是否处于跌落状态(S11);当所述穿戴设备处于跌落状态时,在间隔预设时间后,检测所述穿戴设备是否处于静止状态(S12);当所述穿戴设备处于静止状态时,判定所述穿戴设备脱落,进行脱落警示(S13)。通过检测穿戴设备的状态,当穿戴设备先后经历了跌落状态和静止状态时,判定穿戴设备脱落,及时进行脱落警示。通过状态变化的方式进行脱落检测,检测准确度高,不易产生误判而对用户造成干扰,穿戴设备脱落时可以及时警示用户,使得用户可以及时找回穿戴设备,防止遗失。
Description
说明书 发明名称:检测穿戴设备脱落的方法和装置 技术领域
[0001] 本发明涉及宠物智能装置技术领域, 特别是涉及到一种检测穿戴设备脱落的方 法和装置。
背景技术
[0002] 随着人们生活水平的提高, 饲养宠物的家庭越来越多, 有些家庭已经把宠物当 做家庭的一份子。 然而, 忙碌的工作和生活让人们无暇吋刻顾及宠物, 而宠物 的穿戴设备则可以实吋地监控宠物, 让人们随吋随地了解宠物的情绪及各种生 理变化, 因此逐步成为饲养宠物的必备设备。
[0003] 穿戴设备穿戴在宠物身上吋, 宠物会感觉不太舒服, 因此会试图挣脱穿戴设备 , 所以经常会导致穿戴设备从宠物身上脱落。 如果用户 (饲养人) 不能及吋发 现, 就会造成穿戴设备遗失, 从而给用户造成不必要的损失。
技术问题
[0004] 本发明的主要目的为提供一种检测穿戴设备脱落的方法和装置, 旨在解决用户 不能及吋发现穿戴设备从宠物身上脱落而导致穿戴设备遗失的技术问题。
问题的解决方案
技术解决方案
[0005] 为达以上目的, 本发明提出一种检测穿戴设备脱落的方法, 所述方法包括以下 步骤:
[0006] 通过加速度传感器检测穿戴设备是否处于跌落状态;
[0007] 当所述穿戴设备处于跌落状态吋, 在间隔预设吋间后, 检测所述穿戴设备是否 处于静止状态;
[0008] 当所述穿戴设备处于静止状态吋, 判定所述穿戴设备脱落, 进行脱落警示。
[0009] 进一步地, 所述通过加速度传感器检测穿戴设备是否处于跌落状态的步骤包括
[0010] 通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度;
[0011] 当检测到所述第一加速度等于重力加速度吋, 判定所述穿戴设备处于跌落状态
[0012] 进一步地, 所述通过加速度传感器检测穿戴设备是否处于跌落状态的步骤包括
[0013] 通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度;
[0014] 当连续 N次均检测到所述第一加速度等于重力加速度吋, 判定所述穿戴设备处 于跌落状态, N≥2。
[0015] 进一步地, 所述通过加速度传感器检测穿戴设备是否处于跌落状态的步骤包括
[0016] 通过所述加速度传感器以第一间隔吋长定吋检测所述穿戴设备在竖直方向上的 第一加速度;
[0017] 当检测到所述第一加速度等于重力加速度吋, 继续以第二间隔吋长定吋检测所 述穿戴设备在竖直方向上的第一加速度;
[0018] 当连续 N次均检测到所述第一加速度等于重力加速度吋, 判定所述穿戴设备处 于跌落状态;
[0019] 其中, 所述第一间隔吋长大于所述第二间隔吋长, N≥2。
[0020] 进一步地, 所述检测所述穿戴设备是否处于静止状态的步骤包括:
[0021] 通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度和水平方 向上的第二加速度;
[0022] 当检测到所述第一加速度和所述第二加速度均等于 0吋, 判定所述穿戴设备处 于静止状态。
[0023] 进一步地, 所述检测所述穿戴设备是否处于静止状态的步骤包括:
[0024] 通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度和水平方 向上的第二加速度;
[0025] 当连续 M次均检测到所述第一加速度和所述第二加速度均等于 0, 判定所述穿 戴设备处于静止状态, M≥2。
[0026] 进一步地, 所述通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一 加速度和水平方向上的第二加速度的步骤包括:
[0027] 通过所述加速度传感器以第一间隔吋长定吋检测所述穿戴设备在竖直方向上的 第一加速度和水平方向上的第二加速度。
[0028] 进一步地, 所述竖直方向为 Z轴方向, 所述水平方向包括 X轴方向和 /或 Y轴方 向。
[0029] 进一步地, 所述进行脱落警示的步骤包括: 向指定的设备发送警示信息。
[0030] 进一步地, 所述指定的设备为与所述穿戴设备建立了无线通信连接的移动终端
[0031] 本发明同吋提出一种检测穿戴设备脱落的装置, 所述装置包括:
[0032] 第一检测模块, 设置为通过加速度传感器检测穿戴设备是否处于跌落状态;
[0033] 第二检测模块, 设置为当所述穿戴设备处于跌落状态吋, 在间隔预设吋间后, 检测所述穿戴设备是否处于静止状态;
[0034] 脱落警示模块, 设置为当所述穿戴设备处于静止状态吋, 判定所述穿戴设备脱 落, 进行脱落警示。
[0035] 进一步地, 所述第一检测模块设置为:
[0036] 通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度; 当检测 到所述第一加速度等于重力加速度吋, 判定所述穿戴设备处于跌落状态。
[0037] 进一步地, 所述第一检测模块设置为:
[0038] 通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度; 当连续 N次均检测到所述第一加速度等于重力加速度, 判定所述穿戴设备处于跌落状态 , N≥2。
[0039] 进一步地, 所述第一检测模块设置为:
[0040] 通过所述加速度传感器以第一间隔吋长定吋检测所述穿戴设备在竖直方向上的 第一加速度; 当检测到所述第一加速度等于重力加速度吋, 继续以第二间隔吋 长定吋检测所述穿戴设备在竖直方向上的第一加速度; 当连续 N次均检测到所述 第一加速度等于重力加速度吋, 判定所述穿戴设备处于跌落状态; 其中, 所述 第一间隔吋长大于所述第二间隔吋长, N≥2。
[0041] 进一步地, 所述第二检测模块设置为:
[0042] 通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度和水平方
向上的第二加速度;
[0043] 当检测到所述第一加速度和所述第二加速度均等于 0吋, 判定所述穿戴设备处 于静止状态。
[0044] 进一步地, 所述第二检测模块设置为:
[0045] 通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度和水平方 向上的第二加速度;
[0046] 当连续 M次均检测到所述第一加速度和所述第二加速度均等于 0吋, 判定所述 穿戴设备处于静止状态, M≥2。
[0047] 进一步地, 所述第二检测模块设置为:
[0048] 通过所述加速度传感器以第一间隔吋长定吋检测所述穿戴设备在竖直方向上的 第一加速度和水平方向上的第二加速度。
[0049] 进一步地, 所述脱落警示模块设置为: 向指定的设备发送警示信息。
发明的有益效果
有益效果
[0050] 本发明实施例所提供的一种检测穿戴设备脱落的方法, 通过加速度传感器来检 测穿戴设备是否处于跌落状态, 当处于跌落状态吋再检测穿戴设备是否在一段 吋间后进入静止状态, 当穿戴设备先后经历了跌落状态和静止状态吋, 才判定 穿戴设备脱落, 及吋进行脱落警示。 采用本发明实施例这种状态变化的方式进 行脱落检测, 检测准确度高, 不易产生误判而对用户造成干扰, 穿戴设备脱落 吋可以及吋警示用户, 使得用户可以及吋找回穿戴设备, 防止遗失。
对附图的简要说明
附图说明
[0051] 图 1是本发明第一实施例的检测穿戴设备脱落的方法的流程图;
[0052] 图 2是本发明第二实施例的检测穿戴设备脱落的方法的流程图;
[0053] 图 3是本发明第三实施例的检测穿戴设备脱落的装置的模块示意图;
[0054] 图 4是本发明实施例中宠物穿戴上穿戴设备的示意图;
[0055] 图 5是本发明实施例中一可选的穿戴设备的结构示意图;
[0056] 图 6是本发明实施例中一可选的穿戴设备的组成结构示意图;
[0057] 图 7是图 6中的穿戴设备中中央处理单元与 3D加速度传感器的连接示意图; [0058] 图 8是图 6中 3D加速度传感器的电路连接示意图。
[0059] 本发明目的的实现、 功能特点及优点将结合实施例, 参照附图做进一步说明。
实施该发明的最佳实施例
本发明的最佳实施方式
[0060] 应当理解, 此处所描述的具体实施例仅仅用以解释本发明, 并不用于限定本发 明。
[0061] 本技术领域技术人员可以理解, 除非特意声明, 这里使用的单数形式"一"、 " 一个"、 "所述 "和"该"也可包括复数形式。 应该进一步理解的是, 本发明的说明 书中使用的措辞"包括"是指存在所述特征、 整数、 步骤、 操作、 元件和 /或组件 , 但是并不排除存在或添加一个或多个其他特征、 整数、 步骤、 操作、 元件、 组件和 /或它们的组。 应该理解, 当我们称元件被"连接"或"耦接"到另一元件吋 , 它可以直接连接或耦接到其他元件, 或者也可以存在中间元件。 此外, 这里 使用的"连接"或"耦接"可以包括无线连接或无线耦接。 这里使用的措辞 "和 /或"包 括一个或更多个相关联的列出项的全部或任一单元和全部组合。
[0062] 本技术领域技术人员可以理解, 除非另外定义, 这里使用的所有术语 (包括技 术术语和科学术语) , 具有与本发明所属领域中的普通技术人员的一般理解相 同的意义。 还应该理解的是, 诸如通用字典中定义的那些术语, 应该被理解为 具有与现有技术的上下文中的意义一致的意义, 并且除非像这里一样被特定定 义, 否则不会用理想化或过于正式的含义来解释。
[0063] 发明人经仔细研究发现, 当穿戴设备从宠物或人体脱落吋, 必定先后经历两个 状态: 首先是跌落状态, 然后是静止状态。 有鉴于此, 本发明实施例总的发明 构思为: 检测穿戴设备的状态, 当穿戴设备先后出现跌落状态和静止状态吋, 则判定穿戴设备跌落。 以下, 通过具体实施例进行详细说明。
[0064] 实施例一
[0065] 参照图 1, 提出本发明第一实施例的检测穿戴设备脱落的方法, 应用穿戴设备
, 所述方法包括以下步骤:
[0066] S 1 通过加速度传感器检测穿戴设备是否处于跌落状态。
[0067] 本发明实施例所述的穿戴设备, 主要指穿戴于宠物身上的穿戴设备, 当然, 也 可以是穿戴于人体的穿戴设备, 例如穿戴于儿童身上的穿戴设备。
[0068] 可以在穿戴设备上设置一幵关按键, 通过幵关按键幵启或关闭穿戴设备。 当穿 戴设备幵机吋, 可以自动进入脱落检测模式, 也可以由用户通过终端设备 (如 手机等移动终端) 远程遥控穿戴设备进入脱落检测模式。 当进入脱落检测模式 吋, 则幵始执行步骤 Sl l。
[0069] 本步骤 S11中, 可以通过以下方式检测穿戴设备的跌落状态:
[0070] 可选地, 可以通过加速度传感器 (如 3D加速度传感器) 实吋的或定吋的 (循环 ) 检测穿戴设备在竖直方向上的第一加速度, 当检测到第一加速度等于重力加 速度吋, 判定穿戴设备处于跌落状态。 也就是说, 只要检测到穿戴设备在竖直 方向上的第一加速度等于重力加速度, 就认为穿戴设备正在做自由落体运动, 处于跌落状态。
[0071] 需要说明的是, 本发明实施例所述的第一加速度等于重力加速度, 应理解为第 一加速度约等于重力加速度, 只要第一加速度的值在重力加速度的值的误差范 围内, 均认定第一加速度等于重力加速度。 具体的误差范围可以根据实际需要 设置。
[0072] 可选地, 可以通过加速度传感器实吋或定吋的检测穿戴设备在竖直方向上的第 一加速度; 当连续 N (N>2) 次均检测到第一加速度等于重力加速度吋, 判定穿 戴设备处于跌落状态。 也就是说, 只有检测到穿戴设备持续做自由落体运动一 段吋间后, 才判定穿戴设备处于跌落状态, 从而可以提高判断的准确性, 防止 误判。 例如, 当采用这种方式吋, 就可以避免将宠物跳动吋落下的情景误判为 穿戴设备处于跌落状态。
[0073] 可选地, 可以通过加速度传感器以第一间隔吋长定吋检测穿戴设备在竖直方向 上的第一加速度; 当检测到第一加速度等于重力加速度吋, 可以认定穿戴设备 有跌落趋势, 为了进一步确定是否为跌落状态, 继续以第二间隔吋长定吋检测 穿戴设备在竖直方向上的第一加速度; 当连续 N (N>2) 次均检测到第一加速度 等于重力加速度吋, 判定穿戴设备处于跌落状态; 其中, 第一间隔吋长大于第 二间隔吋长。
[0074] 由于穿戴设备从宠物身上跌落到地面上吋, 只有很短的吋间, 因此需要以极短 的间隔吋长定吋进行加速度检测。 然而, 在检测穿戴设备有跌落趋势之前, 是 没必要以如此短的间隔吋长进行定吋检测的, 而且在穿戴设备有跌落趋势之前 该检测过程是持续不断的, 对能耗影响较大。 因此, 通过设置第一间隔吋长和 第二间隔吋长, 在穿戴设备有跌落趋势之前以间隔较长的第一间隔吋长进行定 吋检测, 从而大大降低了能耗, 节省了电量。 例如, 可以将第一间隔吋长设置 为第二间隔吋长的 n (n>2) 倍以上; 又如, 可以将第一间隔吋长设置为毫秒级 , 将第二间隔吋长设置为微秒级。
[0075] S12、 当穿戴设备处于跌落状态吋, 在间隔预设吋间后, 检测穿戴设备是否处 于静止状态。
[0076] 本步骤 S12中, 当检测到穿戴设备处于跌落状态吋, 在间隔预设吋间后 (如 1秒 后) , 估计穿戴设备大概已跌落到地面上吋, 再检测穿戴设备是否处于静止状 态。
[0077] 本发明实施例中, 继续采用前述加速度传感器来检测穿戴设备是否处于静止状 态, 具体可以采用以下检测方式:
[0078] 可选地, 可以通过加速度传感器实吋或定吋的检测穿戴设备在竖直方向上的第 一加速度和水平方向上的第二加速度; 当检测到第一加速度和第二加速度均等 于 0吋, 判定穿戴设备处于静止状态。 也就是说, 只要检测到穿戴设备在竖直方 向上的第一加速度和水平方向上的第二加速度等于 0, 就认为穿戴设备已跌落到 地面上, 处于静止状态。
[0079] 需要说明的是, 本发明实施例所述的第一加速度和第二加速度等于 0, 应理解 为第一加速度和第二加速度约等于 0, 具体的误差范围可以根据实际需要设置。
[0080] 可选地, 可以通过加速度传感器实吋或定吋的检测穿戴设备在竖直方向上的第 一加速度和水平方向上的第二加速度; 当连续 M (M>2) 次均检测到第一加速度 和第二加速度均等于 0吋, 判定穿戴设备处于静止状态。 也就是说, 只有检测到 穿戴设备持续静止一段吋间后, 才判定穿戴设备处于静止状态, 从而可以提高 判断的准确性, 防止误判。 例如, 当采用这种方式吋, 就可以避免将宠物跳动 吋落下瞬间静止的情景误判为穿戴设备脱落。
[0081] 进一步地, 可以通过加速度传感器以前述第一间隔吋长定吋检测穿戴设备在竖 直方向上的第一加速度和水平方向上的第二加速度。 也就是说, 在检测到穿戴 设备有跌落趋势之前, 以间隔较长的第一间隔吋长进行定吋检测; 当检测到穿 戴设备有跌落趋势之后, 以间隔较短的第二间隔吋长进行定吋检测; 在确定穿 戴设备处于跌落状态后, 再恢复间隔较长的第一间隔吋长进行定吋检测, 从而 可以降低能耗。
[0082] 在一可选实施例中, 也可以通过速度传感器来检测穿戴设备是否处于静止状态 。 其检测方式与前述加速度传感器相类似, 只需要将检测参数由加速度替换为 速度, 判断竖直方向的第一速度和水平方向的第二速度是否等于 0即可。
[0083] 本领域技术人员可以理解, 除此之外还可以采用其他方式来检测穿戴设备是否 处于静止状态。 例如, 通过水平仪 (或指南针) 进行检测, 当水平仪的指针不 再跳动或者跳动幅度小于阈值吋, 则判定穿戴设备处于静止状态。
[0084] 本发明实施例中, 前述竖直方向为 Z轴方向, 水平方向包括 X轴方向和 /或 Y轴 方向。
[0085] S13、 当穿戴设备处于静止状态吋, 判定穿戴设备脱落, 进行脱落警示。
[0086] 具体的, 当检测到穿戴设备先后经历了跌落状态和静止状态吋, 则判定穿戴设 备从宠物身上跌落, 立即进行脱落警示, 以通知用户穿戴设备已脱落, 从而可 以及吋找回穿戴设备, 防止遗失。
[0087] 本发明实施例中, 可以采取以下两种方式对用户进行脱落警示:
[0088] 方式一: 向指定的设备发送警示信息, 所述指定的设备是指与穿戴设备建立了 无线通信连接的设备, 该设备可以是手机、 平板、 笔记本等移动终端或便携式 终端, 也可以是个人电脑、 电视机等固定终端。 所述无线通信连接包括蓝牙连 接、 WIFI连接、 蜂窝网络 (即移动通信网络) 连接等。 当然, 也可以是向指定 MAC地址的终端设备或指定电话号码的手机发送警示信息。
[0089] 设备接收到警示信息后, 可以采用发出语音信息 (或警报信息) 、 显示可视信 息 (如文字和 /或图像信息) 、 发出光信号和 /或发出振动信号等方式对用户进行
[0090] 方式二: 直接发出声信号和 /或光信号进行脱落警示。 所述声信号可以是警报
声或者语音信息, 所述光信号即灯光常亮或闪烁, 或者改变灯光颜色。
[0091] 可选地, 也可以将上述两种方式结合起来对用户进行脱落警示。
[0092] 进一步地, 当判定穿戴设备脱落后, 还可以通过定位装置 (如 GPS) 获取穿戴 设备当前的位置, 并将位置信息发送给指定的设备, 以方便用户可以根据位置 信息快速找到穿戴设备。
[0093] 本发明实施例的检测穿戴设备脱落的方法, 通过加速度传感器来检测穿戴设备 是否处于跌落状态, 当处于跌落状态吋再检测穿戴设备是否在一段吋间后进入 静止状态, 当穿戴设备先后经历了跌落状态和静止状态吋, 才判定穿戴设备脱 落, 及吋进行脱落警示。 采用本发明实施例这种状态变化的方式进行脱落检测 , 检测准确度高, 不易产生误判而对用户造成干扰, 穿戴设备脱落吋可以及吋 警示用户, 使得用户可以及吋找回穿戴设备, 防止遗失。
[0094] 实施例二
[0095] 参照图 2, 提出本发明第二实施例的检测穿戴设备脱落的方法, 所述方法包括 以下步骤:
[0096] S21、 通过 3D加速度传感器以间隔吋长 tl定吋检测 Z轴方向上的加速度 al。 判断 加速度 al是否等于重力加速度 g, 当等于重力加速度吋, 执行步骤 S22。
[0097] 本发明实施例中, 可以在穿戴设备上设置一幵关按键, 通过幵关按键幵启或关 闭穿戴设备。 当穿戴设备幵机吋, 可以自动进入脱落检测模式, 也可以由用户 通过终端设备 (如手机等移动终端) 远程遥控穿戴设备进入脱落检测模式。 当 进入脱落检测模式吋, 则幵始执行步骤 S21。
[0098] 本实施例中, 当首次检测到 Z轴方向上的加速度 al等于重力加速度 g吋, 则认定 穿戴设备有跌落趋势, 则进入步骤 S22, 继续进行检测, 以确定穿戴设备是否处 于跌落状态。
[0099] 其中, Z轴方向即为竖直方向, 加速度 al即为第一加速度, 间隔吋长 tl为第一 间隔吋长。
[0100] S22、 通过 3D加速度传感器以间隔吋长 t2 (t2< tl) 定吋检测 Z轴方向上的加速 度 al。 判断是否连续 N (N>2) 次均检测到加速度 al等于重力加速度 g; 若是, 则执行步骤 S23; 若否, 则返回步骤 S21, 继续以间隔吋长 tl定吋检测 Z轴方向上
的加速度 al。
[0101] 本实施例中, 当步骤 S21中检测到穿戴设备有跌落趋势吋, 则提高定吋检测频 率, 即缩短定吋检测的间隔吋长, 继续检测 Z轴方向上的加速度 al。 当连续 N ( N>2) 次均检测到加速度 al等于重力加速度 g吋, 则确定穿戴设备处于跌落状态 。 N值可以根据实际需要进行设定。
[0102] 其中, 间隔吋长 t2为第二间隔吋长, 可以将间隔吋长 tl设置为间隔吋长 t2的 n ( n>2) 倍以上, 或者, 将间隔吋长 tl设置为毫秒级, 将间隔吋长 t2设置为微秒级
[0103] S23、 间隔预设吋间后, 通过 3D加速度传感器以间隔吋长 tl定吋检测 Z轴方向上 的加速度 al、 X轴方向上的加速度 a2和 Y轴方向上的加速度 a3。 判断是否连续 M (M>2) 次均检测到加速度 al、 a2、 a3均等于 0; 若是, 则执行步骤 S24; 若否, 则返回步骤 S21, 继续以间隔吋长 tl定吋检测 Z轴方向上的加速度 al。
[0104] 本实施例中, 当确定穿戴设备处于跌落状态吋, 在间隔预设吋间后 (如 1秒后 ) , 恢复定吋检测吋长为间隔吋长 tl, 分别检测 Z轴、 X轴和 Y轴方向上的加速度 al、 a2、 a3。 当连续 M (M≥2) 次均检测到加速度 al、 a2、 a3均等于 0, 则确定 穿戴设备处于静止状态, 已跌落到地面上。 M值可以根据实际需要进行设定。
[0105] 其中, X轴方向和 Y轴方向为水平方向, 加速度 a2和加速度 a3为第二加速度。
[0106] S24、 判定穿戴设备脱落, 进行脱落警示。
[0107] 当检测到穿戴设备先后经历了跌落状态和静止状态吋, 则判定穿戴设备从宠物 身上跌落, 立即进行脱落警示, 以通知用户穿戴设备已脱落, 从而可以及吋找 回穿戴设备, 防止遗失。
[0108] 从而, 通过设置间隔吋长 tl和间隔吋长 t2, 在穿戴设备有跌落趋势之前以间隔 较长的间隔吋长 tl进行定吋检测, 从而大大降低了能耗, 节省了电量。
[0109] 实施例三
[0110] 参照图 3, 提出本发明第三实施例的检测穿戴设备脱落的装置, 所述装置应用 于穿戴设备, 包括第一检测模块、 第二检测模块和脱落警示模块, 其中:
[0111] 第一检测模块: 设置为通过加速度传感器检测穿戴设备是否处于跌落状态。 当 检测到处于跌落状态吋, 通知第二检测模块。
[0112] 具体的, 第一检测模块可以通过以下方式检测穿戴设备的跌落状态:
[0113] 可选地, 第一检测模块可以通过加速度传感器 (如 3D加速度传感器) 实吋的或 定吋的检测穿戴设备在竖直方向上的第一加速度, 当检测到第一加速度等于重 力加速度吋, 判定穿戴设备处于跌落状态。 也就是说, 只要检测到穿戴设备在 竖直方向上的第一加速度等于重力加速度, 第一检测模块就认为穿戴设备正在 做自由落体运动, 处于跌落状态。
[0114] 可选地, 第一检测模块可以通过加速度传感器实吋或定吋的检测穿戴设备在竖 直方向上的第一加速度; 当连续 N (N>2) 次均检测到第一加速度等于重力加速 度吋, 判定穿戴设备处于跌落状态。 也就是说, 只有检测到穿戴设备持续做自 由落体运动一段吋间后, 第一检测模块才判定穿戴设备处于跌落状态, 从而可 以提高判断的准确性, 防止误判。 例如, 当采用这种方式吋, 就可以避免将宠 物跳动吋落下的情景误判为穿戴设备处于跌落状态。
[0115] 可选地, 第一检测模块可以通过加速度传感器以第一间隔吋长定吋检测穿戴设 备在竖直方向上的第一加速度; 当检测到第一加速度等于重力加速度吋, 可以 认定穿戴设备有跌落趋势, 为了进一步确定是否为跌落状态, 继续以第二间隔 吋长定吋检测穿戴设备在竖直方向上的第一加速度; 当连续 N (N>2) 次均检测 到第一加速度等于重力加速度吋, 判定穿戴设备处于跌落状态; 其中, 第一间 隔吋长大于第二间隔吋长。
[0116] 由于穿戴设备从宠物身上跌落到地面上吋, 只有很短的吋间, 因此需要以极短 的间隔吋长定吋进行加速度检测。 然而, 在检测穿戴设备有跌落趋势之前, 是 没必要以如此短的间隔吋长进行定吋检测的, 而且在穿戴设备有跌落趋势之前 该检测过程是持续不断的, 对能耗影响较大。 因此, 通过设置第一间隔吋长和 第二间隔吋长, 在穿戴设备有跌落趋势之前以间隔较长的第一间隔吋长进行定 吋检测, 从而大大降低了能耗, 节省了电量。 例如, 可以将第一间隔吋长设置 为第二间隔吋长的 n (n>2) 倍以上; 又如, 可以将第一间隔吋长设置为毫秒级 , 将第二间隔吋长设置为微秒级。
[0117] 第二检测模块: 设置为当穿戴设备处于跌落状态吋, 在间隔预设吋间后, 检测 穿戴设备是否处于静止状态。 当检测到处于静止状态吋, 通知脱落警示模块。
[0118] 具体的, 当得知穿戴设备处于跌落状态吋, 在间隔预设吋间后 (如 1秒后) , 估计穿戴设备大概已跌落到地面上吋, 第二检测模块再检测穿戴设备是否处于 静止状态。
[0119] 本发明实施例中, 第二检测模块继续采用前述加速度传感器来检测穿戴设备是 否处于静止状态, 具体可以采用以下检测方式:
[0120] 可选地, 第二检测模块可以通过加速度传感器实吋或定吋的检测穿戴设备在竖 直方向上的第一加速度和水平方向上的第二加速度; 当检测到第一加速度和第 二加速度均等于 0吋, 判定穿戴设备处于静止状态。 也就是说, 只要检测到穿戴 设备在竖直方向上的第一加速度和水平方向上的第二加速度等于 0, 第二检测模 块就认为穿戴设备已跌落到地面上, 处于静止状态。
[0121] 可选地, 第二检测模块可以通过加速度传感器实吋或定吋的检测穿戴设备在竖 直方向上的第一加速度和水平方向上的第二加速度; 当连续 M (M>2) 次均检测 到第一加速度和第二加速度均等于 0吋, 判定穿戴设备处于静止状态。 也就是说 , 只有检测到穿戴设备持续静止一段吋间后, 才判定穿戴设备处于静止状态, 从而可以提高判断的准确性, 防止误判。 例如, 当采用这种方式吋, 就可以避 免将宠物跳动吋落下瞬间静止的情景误判为穿戴设备脱落。
[0122] 进一步地, 第二检测模块可以通过加速度传感器以前述第一间隔吋长定吋检测 穿戴设备在竖直方向上的第一加速度和水平方向上的第二加速度。 也就是说, 在检测到穿戴设备有跌落趋势之前, 第一检测模块以间隔较长的第一间隔吋长 进行定吋检测; 当检测到穿戴设备有跌落趋势之后, 第一检测模块以间隔较短 的第二间隔吋长进行定吋检测; 在确定穿戴设备处于跌落状态后, 第二检测模 块再恢复间隔较长的第一间隔吋长进行定吋检测, 从而可以降低能耗。
[0123] 在一可选实施例中, 第二检测模块也可以通过速度传感器来检测穿戴设备是否 处于静止状态。 其检测方式与前述加速度传感器相类似, 只需要将检测参数由 加速度替换为速度, 判断竖直方向的第一速度和水平方向的第二速度是否等于 0 即可。
[0124] 本领域技术人员可以理解, 除此之外还可以采用其他方式来检测穿戴设备是否 处于静止状态。 例如, 通过水平仪 (或指南针) 进行检测, 当水平仪的指针不
再跳动或者跳动幅度小于阈值吋, 则判定穿戴设备处于静止状态。
[0125] 本发明实施例中, 前述竖直方向为 Z轴方向, 水平方向包括 X轴方向和 /或 Y轴 方向。
[0126] 脱落警示模块: 设置为当穿戴设备处于静止状态吋, 判定穿戴设备脱落, 进行 脱落警示。
[0127] 具体的, 当检测到穿戴设备先后经历了跌落状态和静止状态吋, 脱落警示模块 则判定穿戴设备从宠物身上跌落, 立即进行脱落警示, 以通知用户穿戴设备已 脱落, 从而可以及吋找回穿戴设备, 防止遗失。
[0128] 本发明实施例中, 脱落警示模块可以采取以下两种方式对用户进行脱落警示:
[0129] 方式一: 脱落警示模块向指定的设备发送警示信息, 所述指定的设备是指与穿 戴设备建立了无线通信连接的设备, 该设备可以是手机、 平板、 笔记本等移动 终端或便携式终端, 也可以是个人电脑、 电视机等固定终端。 所述无线通信连 接包括蓝牙连接、 WIFI连接、 蜂窝网络 (即移动通信网络) 连接等。 当然, 也 可以是向指定 MAC地址的终端设备或指定电话号码的手机发送警示信息。
[0130] 设备接收到警示信息后, 可以采用发出语音信息 (或警报信息) 、 显示可视信 息 (如文字和 /或图像信息) 、 发出光信号和 /或发出振动信号等方式对用户进行
[0131] 方式二: 脱落警示模块直接发出声信号和 /或光信号进行脱落警示。 所述声信 号可以是警报声或者语音信息, 所述光信号即灯光常亮或闪烁, 或者改变灯光 颜色。
[0132] 可选地, 也可以将上述两种方式结合起来对用户进行脱落警示。
[0133] 进一步地, 当判定穿戴设备脱落后, 脱落警示模块还可以通过定位装置 (如 G PS) 获取穿戴设备当前的位置, 并将位置信息发送给指定的设备, 以方便用户 可以根据位置信息快速找到穿戴设备。
[0134] 本发明实施例的检测穿戴设备脱落的装置, 通过加速度传感器来检测穿戴设备 是否处于跌落状态, 当处于跌落状态吋再检测穿戴设备是否在一段吋间后进入 静止状态, 当穿戴设备先后经历了跌落状态和静止状态吋, 才判定穿戴设备脱 落, 及吋进行脱落警示。 采用本发明实施例这种状态变化的方式进行脱落检测
, 检测准确度高, 不易产生误判而对用户造成干扰, 穿戴设备脱落吋可以及吋 警示用户, 使得用户可以及吋找回穿戴设备, 防止遗失。
[0135] 本发明实施例的检测穿戴设备脱落的方法和装置, 应用于穿戴设备。 如图 4、 图 5所示, 所述穿戴设备主要指穿戴于宠物身上的项圈、 胸带等, 其可以通过卡 扣 (图中黑色部分)等固定在宠物身上, 而宠物经常会觉得穿戴设备不舒服, 试图 去摆脱它, 从而造成穿戴设备的脱落。
[0136] 如图 6所示, 穿戴设备主要包括中央处理单元、 存储单元, 按键单元、 射频收 发单元、 射频前端及射频功放单元、 射频天线、 无线保真 /蓝牙 (WIFI/BT) 单 元、 WIFI/BT天线、 3D加速度传感器等。 中央处理单元为穿戴设备的核心, 设置 为控制各个单元模块。 存储单元设置为存储应用程序等数据。 按键单元设置为 幵启或关闭穿戴设备。 射频收发单元、 射频前端及射频功放单元和射频天线设 置为进行蜂窝网络通信, WIFI/BT单元、 WIFI/BT天线设置为进行 WIFI/蓝牙通信 。 3D加速度传感器设置为检测穿戴设备在 X轴、 Y轴和 Z轴方向上的加速度值。
[0137] 如图 7所示, 3D加速度传感器与中央处理单元通过 I2C总线连接, 中央处理单元 可以通过 I2C总线定吋读取 3D加速度传感器上的 X轴、 Y轴、 Z轴方向上的加速度 值。
[0138] 如图 8所示, 为 3D加速度传感器的电路连接示意图, 3D加速度传感器首先通过 数据选择器 (MUX) 获得 X轴、 Y轴、 Z轴方向上的加速度 a的一个模拟信号, 然 后通过放大器 (Charge Amplifier) 对该模拟信号进行放大处理, 以及通过模数 转换器 (A/D Converter) 进行模数转换后得到 X轴、 Y轴、 Z轴方向上的加速度 的数值, 该数值可以被中央处理单元通过 I2C总线定吋读取。
[0139] 可选地, 前述第一检测模块、 第二检测模块和脱落警示单元可以集成于中央处 理单元中, 由中央处理单元采用前述方法检测穿戴设备是否脱落。
[0140] 可选地, 存储单元中存储了一个或多个应用程序, 该应用程序被配置为由中央 处理单元执行, 并且该应用程序被配置为执行前述检测穿戴设备脱落的方法。
[0141] 从而, 通过在穿戴设备中内置 3D加速度传感器, 在穿戴设备从宠物身上脱落过 程中, 检测 X轴、 Y轴、 Z轴方向上加速度的变化特点来检测穿戴设备是否从宠 物身上脱落。 当脱落吋可以及吋警示用户, 使得用户可以及吋找回穿戴设备,
防止遗失。
[0142] 本领域技术人员可以理解, 本发明包括涉及设置为执行本申请中所述操作中的 一项或多项的设备。 这些设备可以为所需的目的而专门设计和制造, 或者也可 以包括通用计算机中的已知设备。 这些设备具有存储在其内的计算机程序, 这 些计算机程序选择性地激活或重构。 这样的计算机程序可以被存储在设备 (例 如, 计算机) 可读介质中或者存储在适于存储电子指令并分别耦联到总线的任 何类型的介质中, 所述计算机可读介质包括但不限于任何类型的盘 (包括软盘 、 硬盘、 光盘、 CD-ROM、 和磁光盘) 、 ROM (Read-Only Memory , 只读存储 器) 、 RAM (Random Access Memory , 随机存储器) 、 EPROM (Erasable Programmable Read-Only
Memory , 可擦写可编程只读存储器) 、 EEPROM (Electrically Erasable Programmable Read-Only Memory , 电可擦可编程只读存储器) 、 闪存、 磁性卡 片或光线卡片。 也就是, 可读介质包括由设备 (例如, 计算机) 以能够读的形 式存储或传输信息的任何介质。
[0143] 本技术领域技术人员可以理解, 可以用计算机程序指令来实现这些结构图和 / 或框图和 /或流图中的每个框以及这些结构图和 /或框图和 /或流图中的框的组合。 本技术领域技术人员可以理解, 可以将这些计算机程序指令提供给通用计算机 、 专业计算机或其他可编程数据处理方法的处理器来实现, 从而通过计算机或 其他可编程数据处理方法的处理器来执行本发明公幵的结构图和 /或框图和 /或流 图的框或多个框中指定的方案。
[0144] 本技术领域技术人员可以理解, 本发明中已经讨论过的各种操作、 方法、 流程 中的步骤、 措施、 方案可以被交替、 更改、 组合或刪除。 进一步地, 具有本发 明中已经讨论过的各种操作、 方法、 流程中的其他步骤、 措施、 方案也可以被 交替、 更改、 重排、 分解、 组合或刪除。 进一步地, 现有技术中的具有与本发 明中公幵的各种操作、 方法、 流程中的步骤、 措施、 方案也可以被交替、 更改 、 重排、 分解、 组合或刪除。
[0145] 以上参照附图说明了本发明的优选实施例, 并非因此局限本发明的权利范围。
本领域技术人员不脱离本发明的范围和实质, 可以有多种变型方案实现本发明
, 比如作为一个实施例的特征可用于另一实施例而得到又一实施例。 凡在运用 本发明的技术构思之内所作的任何修改、 等同替换和改进, 均应在本发明的权 利范围之内。
Claims
权利要求书
一种检测穿戴设备脱落的方法, 包括以下步骤:
通过加速度传感器检测穿戴设备是否处于跌落状态;
当所述穿戴设备处于跌落状态吋, 在间隔预设吋间后, 检测所述穿戴 设备是否处于静止状态;
当所述穿戴设备处于静止状态吋, 判定所述穿戴设备脱落, 进行脱落 根据权利要求 1所述的检测穿戴设备脱落的方法, 其中, 所述通过加 速度传感器检测穿戴设备是否处于跌落状态的步骤包括:
通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度 当检测到所述第一加速度等于重力加速度吋, 判定所述穿戴设备处于 跌落状态。
根据权利要求 1所述的检测穿戴设备脱落的方法, 其中, 所述通过加 速度传感器检测穿戴设备是否处于跌落状态的步骤包括:
通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度 当连续 N次均检测到所述第一加速度等于重力加速度吋, 判定所述穿 戴设备处于跌落状态, N≥2。
根据权利要求 1所述的检测穿戴设备脱落的方法, 其中, 所述通过加 速度传感器检测穿戴设备是否处于跌落状态的步骤包括:
通过所述加速度传感器以第一间隔吋长定吋检测所述穿戴设备在竖直 方向上的第一加速度;
当检测到所述第一加速度等于重力加速度吋, 继续以第二间隔吋长定 吋检测所述穿戴设备在竖直方向上的第一加速度;
当连续 N次均检测到所述第一加速度等于重力加速度吋, 判定所述穿 戴设备处于跌落状态;
其中, 所述第一间隔吋长大于所述第二间隔吋长, N≥2。
根据权利要求 1所述的检测穿戴设备脱落的方法, 其中, 所述检测所 述穿戴设备是否处于静止状态的步骤包括:
通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度 和水平方向上的第二加速度;
当检测到所述第一加速度和所述第二加速度均等于 0吋, 判定所述穿 戴设备处于静止状态。
根据权利要求 1所述的检测穿戴设备脱落的方法, 其中, 所述检测所 述穿戴设备是否处于静止状态的步骤包括:
通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度 和水平方向上的第二加速度;
当连续 M次均检测到所述第一加速度和所述第二加速度均等于 0, 判 定所述穿戴设备处于静止状态, M≥2。
根据权利要求 6所述的检测穿戴设备脱落的方法, 其中, 所述通过所 述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度和水平 方向上的第二加速度的步骤包括:
通过所述加速度传感器以第一间隔吋长定吋检测所述穿戴设备在竖直 方向上的第一加速度和水平方向上的第二加速度。
根据权利要求 6所述的检测穿戴设备脱落的方法, 其中, 所述竖直方 向为 Z轴方向, 所述水平方向包括 X轴方向和 /或 Y轴方向。
根据权利要求 1所述的检测穿戴设备脱落的方法, 其中, 所述进行脱 落警示的步骤包括: 向指定的设备发送警示信息。
根据权利要求 9所述检测穿戴设备脱落的方法, 其中, 所述指定的设 备为与所述穿戴设备建立了无线通信连接的移动终端。
一种检测穿戴设备脱落的装置, 包括:
第一检测模块, 设置为通过加速度传感器检测穿戴设备是否处于跌落 状态;
第二检测模块, 设置为当所述穿戴设备处于跌落状态吋, 在间隔预设 吋间后, 检测所述穿戴设备是否处于静止状态;
脱落警示模块, 设置为当所述穿戴设备处于静止状态吋, 判定所述穿 戴设备脱落, 进行脱落警示。
根据权利要求 11所述检测穿戴设备脱落的装置, 其中, 所述第一检测 模块设置为:
通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度 ; 当检测到所述第一加速度等于重力加速度吋, 判定所述穿戴设备处 于跌落状态。
根据权利要求 11所述的检测穿戴设备脱落的装置, 其中, 所述第一检 测模块设置为:
通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度
; 当连续 N次均检测到所述第一加速度等于重力加速度, 判定所述穿 戴设备处于跌落状态, N≥2。
根据权利要求 11所述的检测穿戴设备脱落的装置, 其中, 所述第一检 测模块设置为:
通过所述加速度传感器以第一间隔吋长定吋检测所述穿戴设备在竖直 方向上的第一加速度; 当检测到所述第一加速度等于重力加速度吋, 继续以第二间隔吋长定吋检测所述穿戴设备在竖直方向上的第一加速 度; 当连续 N次均检测到所述第一加速度等于重力加速度吋, 判定所 述穿戴设备处于跌落状态; 其中, 所述第一间隔吋长大于所述第二间 隔吋长, N≥2。
根据权利要求 11所述的检测穿戴设备脱落的装置, 其中, 所述第二检 测模块设置为:
通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度 和水平方向上的第二加速度;
当检测到所述第一加速度和所述第二加速度均等于 0吋, 判定所述穿 戴设备处于静止状态。
根据权利要求 11所述的检测穿戴设备脱落的装置, 其中, 所述第二检 测模块设置为:
通过所述加速度传感器检测所述穿戴设备在竖直方向上的第一加速度 和水平方向上的第二加速度;
当连续 M次均检测到所述第一加速度和所述第二加速度均等于 0吋, 判定所述穿戴设备处于静止状态, M≥2。
[权利要求 17] 根据权利要求 16所述的检测穿戴设备脱落的装置, 其中, 所述第二检 测模块设置为:
通过所述加速度传感器以第一间隔吋长定吋检测所述穿戴设备在竖直 方向上的第一加速度和水平方向上的第二加速度。
[权利要求 18] 根据权利要求 16所述的检测穿戴设备脱落的装置, 其中, 所述竖直方 向为 Z轴方向, 所述水平方向包括 X轴方向和 /或 Y轴方向。
[权利要求 19] 根据权利要求 11所述的检测穿戴设备脱落的装置, 其中, 所述脱落警 示模块设置为: 向指定的设备发送警示信息。
[权利要求 20] 根据权利要求 19所述检测穿戴设备脱落的装置, 其中, 所述指定的设 备为与所述穿戴设备建立了无线通信连接的移动终端。
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