CN105873110B - User behavior correction method and device - Google Patents
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Abstract
The embodiment of the invention provides a method and a device for correcting user behaviors, wherein the method comprises the following steps: acquiring the user behavior at the current moment and estimating the user behavior at the next moment according to a pre-established user behavior switching topological relation; and judging whether the user behavior at the current moment needs to be corrected according to a preset correction triggering condition, and correcting the user behavior at the current moment according to the output data of the sensor for monitoring the user behavior at the current moment and the estimated user behavior at the next moment, so that the robustness detection of switching from the user behavior at the current moment to the user behavior at the next moment is realized.
Description
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a user behavior correction method and device.
Background
The wireless sensor comprises an acquisition unit, a data processing unit, a main processor, a communication unit and the like, when the wireless sensor works, a battery or a vibration generator provides power to form a wireless sensor network node, and a digital signal of acquisition equipment is transmitted to a wireless gateway of a monitoring center through a wireless sensor network and is directly sent to a computer for analysis and processing. For example, the data processing unit converts the weak signal acquired by the acquisition unit into a digital signal through analog-to-digital conversion after the weak signal is processed by the conditioning circuits such as amplification and filtering, and then the digital signal is sent to the main processor for digital signal processing, so as to calculate the effective value, the displacement value and the like of the sensor, and then the effective value, the displacement value and the like are sent to the host computer for analysis and processing through the communication unit.
The technical characteristics of the wireless sensor are used by the current Internet of things, for example, in an intelligent endowment system, the wireless sensor is implanted into home-based endowment equipment, and the like, so that the daily life of the old is in a remote monitoring state. For example, if the old people go out of a house or fall down, the watch equipment of the old and the younger children in the intelligent home-based care system can immediately inform medical care personnel or relatives, so that the old people can be helped in time; when the old people have various sub-health hidden dangers caused by improper diet and irregular life, the service center of the intelligent home-based care equipment can also send out an alarm at the first time; the intelligent home-based care equipment medical service center can remind the old people of taking medicines on time and taking various health items in peaceful life; if the kitchen is burnt and no person asks for the fire for a long time, a sensor arranged in the kitchen gives an alarm, and if the alarm is given for a period of time or no person responds, the gas is automatically turned off at the moment; once the water faucet in the residence of the old people is not opened for 24 hours, the alarm system can remind the family of the old people through a telephone or a short message.
In the above prior art, one of the key technologies relates to the detection of the user behavior switch, but in the prior art, no relevant solution is provided to effectively implement the robust detection of the user behavior switch.
Disclosure of Invention
Embodiments of the present invention provide a method and an apparatus for correcting user behavior, so as to solve or alleviate the above technical problems in the prior art.
The technical scheme adopted by the embodiment of the invention is as follows:
the embodiment of the invention provides a user behavior correction method, which comprises the following steps:
acquiring the user behavior at the current moment and estimating the user behavior at the next moment according to a pre-established user behavior switching topological relation;
and judging that the user behavior at the current moment needs to be corrected according to a preset correction triggering condition, and correcting the user behavior at the current moment according to the sensor output data for monitoring the user behavior at the current moment and the estimated user behavior at the next moment.
Preferably, in any embodiment of the present invention, correcting the user behavior at the current time according to the sensor output data for monitoring the user behavior at the current time and the estimated user behavior at the next time includes:
broadcasting wireless signals to all sensors related in the user behavior switching topological relation by the portable sensor for monitoring the user behavior at the current moment;
and correcting the user behavior at the current moment according to the feedback signal strengths of all the sensors related in the user behavior switching topological relation and the estimated user behavior at the next moment, which are received by the portable sensors.
Preferably, in any embodiment of the present invention, correcting the user behavior at the current time according to the sensor output data for monitoring the user behavior at the current time and the estimated user behavior at the next time includes:
judging the user state of the user behavior at the current moment according to data output by a portable sensor for monitoring the user behavior at the current moment;
and correcting the user behavior at the current moment according to the user state of the user behavior at the current moment and the estimated user behavior at the next moment.
Preferably, in any embodiment of the present invention, determining to correct the user behavior at the current time according to a preset correction trigger condition includes:
and obtaining the duration of the user behavior at the current moment, and judging that the user behavior at the current moment needs to be corrected when the duration of the user behavior at the current moment is greater than a preset first time threshold.
Preferably, in any embodiment of the present invention, before acquiring the user behavior at the current time, the method includes: only the sensor for detecting the user behavior at the current moment is activated to enter a working state, and other sensors related in the user behavior switching topological relation enter a standby state.
The embodiment of the invention also provides a user behavior correction device, which comprises:
the estimating unit is used for acquiring the user behavior at the current moment and estimating the user behavior at the next moment according to the pre-established user behavior switching topological relation;
and the correcting unit is used for judging that the user behavior at the current moment needs to be corrected according to a preset correcting triggering condition, and correcting the user behavior at the current moment according to the sensor output data for monitoring the user behavior at the current moment and the estimated user behavior at the next moment.
Preferably, in any embodiment of the present invention, the correction unit is further configured to broadcast a wireless signal to all sensors involved in the user behavior switching topological relation by the portable sensor monitoring the user behavior at the current time; and correcting the user behavior at the current moment according to the feedback signal strengths of all sensors related in the user behavior switching topological relation and the estimated user behavior at the next moment, which are received by the portable sensors.
Preferably, in any embodiment of the present invention, the correction unit is further configured to determine the user state of the user behavior at the current time according to data output by a wearable sensor that monitors the user behavior at the current time; and correcting the user behavior at the current moment according to the user state of the user behavior at the current moment and the estimated user behavior at the next moment.
Preferably, in any embodiment of the present invention, the correcting unit is further configured to acquire a duration of the user behavior at the current time, and when the duration of the user behavior at the current time is greater than a preset first time threshold, it is determined that the user behavior at the current time needs to be corrected.
Preferably, any embodiment of the present invention comprises: and the activation unit is used for activating the sensor for detecting the user behavior at the current moment to enter a working state, and other sensors related in the user behavior switching topological relation to enter a standby state.
The technical scheme of the embodiment of the invention has the following advantages:
estimating the user behavior at the next moment by acquiring the user behavior at the current moment and switching a topological relation according to the pre-established user behavior; and judging whether the user behavior at the current moment needs to be corrected according to a preset correction triggering condition, and correcting the user behavior at the current moment according to the output data of the sensor for monitoring the user behavior at the current moment and the estimated user behavior at the next moment, so that the robustness detection of switching from the user behavior at the current moment to the user behavior at the next moment is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a user behavior switching topological relation structure according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for correcting user behavior according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a user behavior correction method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a four-user behavior correction device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the invention, the user behavior at the next moment is estimated by acquiring the user behavior at the current moment and switching the topological relation according to the pre-established user behavior; and judging whether the user behavior at the current moment needs to be corrected according to a preset correction triggering condition, and correcting the user behavior at the current moment according to the output data of the sensor for monitoring the user behavior at the current moment and the estimated user behavior at the next moment, so that the robustness detection of switching from the user behavior at the current moment to the user behavior at the next moment is realized.
In the following embodiments of the present invention, the application to an intelligent endowment system is taken as an example for explanation, but it should be noted that the technical solution of the present invention is not limited to be applied to an intelligent endowment system, and other occasions where user behaviors need to be corrected may also be used, and details are not repeated.
Fig. 1 is a schematic diagram of a user behavior switching topological relation structure according to an embodiment of the present invention; as shown in fig. 1, statistical analysis is performed on possible user behaviors in the intelligent endowment system, and it is known that there may be 6 types of daily behaviors and 1 type of special behaviors, where the 6 types of daily behaviors are, for example: go to bed, get off the bed, go into the bathroom, go out of the bathroom, go into the house door, go out of the house door. Class 1 special behaviors such as falls. When special behavior occurs, an alarm can be selected.
However, it should be noted that, according to the difference of the monitoring behaviors of the intelligent endowment monitoring system, more and more detailed divisions of the user behaviors are possible, and detailed descriptions are omitted.
In the embodiment shown in fig. 1, a possible switching relationship of each user behavior is further represented in a state machine manner, where the arrow direction indicates the context relationship of different user behaviors, for example, for a behavior a, the behavior thereafter can only be a behavior B or a special behavior. For example, the a behavior is the getting-on-bed behavior, but after the getting-on-bed action is completed, only the getting-off-bed behavior, i.e., the B behavior, or special behaviors such as falling down can be performed at the next moment. In the process, only the sensors for detecting the user behaviors at the current moment, namely the A behavior, the B behavior and the special behavior enter the working state, and other sensors related in the topological relation of user behavior switching enter the standby state, so that the purpose of optimizing the power consumption of the whole system is achieved.
FIG. 2 is a flowchart illustrating a method for correcting user behavior according to an embodiment of the present invention; as shown in fig. 2, it includes:
s201, obtaining user behaviors at the current moment and estimating the user behaviors at the next moment according to a pre-established user behavior switching topological relation;
in this embodiment, the obtaining of the sensor that detects the user behavior at the current time may be performed in a working state, for example, if the user is in a bed, an infrared sensor installed in the bed is activated to work, and the user behavior at the current time is obtained by obtaining data output by the infrared sensors: to be in or out of bed. Or, when the user is in the toilet, the door sensor in the toilet is activated to work, and the user behavior at the current moment is acquired through the data output by the door sensor: in the washroom, other various situations are not described in detail.
In this embodiment, the pre-established user behavior switching topological relation may refer to fig. 1, and details are not repeated.
And S202, judging that the user behavior at the current moment is to be corrected according to a preset correction trigger condition.
In this embodiment, in step S202, the preset correction triggering condition may be a first time threshold, which is used to determine whether the duration of the user behavior at the current time exceeds the first time threshold, and if the duration exceeds the first time threshold, it indicates that the user behavior has been switched or may be switched, and at this time, the user at the current time needs to be corrected.
Therefore, in this embodiment, if the preset correction triggering condition is the first time threshold, step S202 may obtain the duration of the user behavior at the current time, and when the duration of the user behavior at the current time is greater than the preset first time threshold, it is determined that the user behavior at the current time is to be corrected.
For example, the user behavior at the current moment of the user is: in the washroom, and beyond the set first time threshold, the behavior of the user leaving the washroom has not been detected, possibly due to a door sensor detecting the leaving of the washroom failing or not being triggered correctly or the sensor failing, and in this case, the behavior "in the washroom" needs to be corrected.
S203, correcting the user behavior at the current moment according to the sensor output data for monitoring the user behavior at the current moment and the estimated user behavior at the next moment.
In this embodiment, step S203 may specifically include:
s213, broadcasting wireless signals to all sensors related in the user behavior switching topological relation by the portable sensor monitoring the user behavior at the current moment;
in this embodiment, if the intelligent endowment system is built based on the ZigBee protocol, when broadcasting wireless signals, ZigBee wireless signals can be broadcasted. If the wireless communication system is built based on other wireless communication protocols, adaptive adjustment is carried out.
In this embodiment, the portable sensor is generally a gyroscope, a gravity sensor, a pressure sensor, or a combination of two or three of the three, and at this time, all the sensors enter a working state.
And S223, correcting the user behavior at the current moment according to the feedback signal strengths of all the sensors related in the user behavior switching topological relation and the estimated user behavior at the next moment, which are received by the portable sensors.
In this embodiment, for example, the detected user behavior at the current time is: in the washroom, the output data of the corresponding sensors is kept unchanged to a first time threshold value, at the moment, the gyroscope mounted on the shoe sends ZigBee wireless signals to all the sensors in the intelligent endowment system, if the signal intensity returned by the infrared sensor mounted on the bed is maximum, the situation that the user leaves the washroom is indicated, and referring to the state machine shown in the figure 1, the state at the next moment can only be the special behavior of leaving the washroom or the user, and at the moment, the behavior of the user in the washroom is corrected to be the behavior of leaving the washroom.
FIG. 3 is a schematic flow chart of a user behavior correction method according to an embodiment of the present invention; as shown in fig. 3, it includes:
s301, obtaining user behaviors at the current moment and estimating the user behaviors at the next moment according to a pre-established user behavior switching topological relation;
and S302, judging that the user behavior at the current moment needs to be corrected according to a preset correction trigger condition.
In this embodiment, the steps S301 to S302 can refer to fig. 2, and are not described in detail again.
S303, judging the user state of the user behavior at the current moment according to data output by the portable sensor for monitoring the user behavior at the current moment;
different from the above embodiments, in this embodiment, the triggering of sending wireless signals to all the sensors by the portable sensor and performing user behavior correction according to the fed-back wireless signals is not adopted, but is determined by combining the user states of the user behaviors. The user status may include: static state, moving body. For example, the user behavior at the current moment is finished staying in bed, and the state of the user behavior at the current moment is determined to be a motion state through a gyroscope installed on a shoe. In this case, the attribute of the user behavior may be subdivided into static user behavior, static movable user behavior, and dynamic user behavior.
S304, correcting the user behavior at the current moment according to the user state of the user behavior at the current moment and the estimated user behavior at the next moment.
Referring to the state machine of fig. 1, what is in connection with "staying in bed" (stationary user behavior) is only getting out of bed behavior or special behavior, and further, it has been determined in step S303 that the current state of user behavior is a moving state, which indicates that the user is performing the "getting out of bed" action, and at this time, the "staying in bed" user behavior is corrected to "getting out of bed".
On the basis of the above embodiments of fig. 2 and 3, before steps S201 and S301, the method includes: only the sensor for detecting the user behavior at the current moment is activated to enter a working state, and other sensors related in the user behavior switching topological relation enter a standby state.
FIG. 4 is a schematic structural diagram of a four-user behavior correction device according to an embodiment of the present invention; as shown in fig. 4, it includes:
the estimating unit 401 is configured to acquire a user behavior at a current time and estimate a user behavior at a next time according to a pre-established user behavior switching topological relation;
a correcting unit 402, configured to determine, according to a preset correction trigger condition, that a user behavior at the current time is to be corrected, and correct the user behavior at the current time according to sensor output data for monitoring the user behavior at the current time and an estimated user behavior at the next time.
In this embodiment or any other embodiment, the correction unit 402 is further configured to broadcast a wireless signal to all sensors involved in the user behavior switching topological relation by the portable sensor monitoring the user behavior at the current time; correcting the user behavior at the current moment according to the feedback signal strengths of all sensors related in the user behavior switching topological relation and the estimated user behavior at the next moment, which are received by the portable sensors; or,
alternatively, in this embodiment or any other embodiment, the correction unit 402 is further configured to determine the user state of the user behavior at the current time according to data output by a wearable sensor that monitors the user behavior at the current time; and correcting the user behavior at the current moment according to the user state of the user behavior at the current moment and the estimated user behavior at the next moment.
In this embodiment or any other embodiment, the correcting unit 402 is further configured to obtain a duration of the user behavior at the current time, and when the duration of the user behavior at the current time is greater than a preset first time threshold, it is determined that the user behavior at the current time needs to be corrected.
In another embodiment of the present invention, an activation unit (not shown in the figure) may be further added to the above-mentioned fig. 1, for activating the sensor that detects the user behavior at the current time to enter an active state, and the other sensors involved in the user behavior switching topology to enter a standby state.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A method for correcting user behavior, comprising:
acquiring the user behavior at the current moment and estimating the user behavior at the next moment according to a pre-established user behavior switching topological relation; the user behavior switching topological relation comprises a plurality of user behaviors and possible switching relations of the user behaviors;
judging whether the user behavior at the current moment needs to be corrected according to a preset correction triggering condition, and correcting the user behavior at the current moment according to sensor output data for monitoring the user behavior at the current moment and the estimated user behavior at the next moment;
wherein, judging to correct the user behavior at the current moment according to the preset correction triggering condition comprises the following steps: and obtaining the duration of the user behavior at the current moment, and judging that the user behavior at the current moment needs to be corrected when the duration of the user behavior at the current moment is greater than a preset first time threshold.
2. The method of claim 1, wherein correcting the current moment user behavior based on sensor output data monitoring the current moment user behavior and an estimated next moment user behavior comprises:
broadcasting wireless signals to all sensors related in the user behavior switching topological relation by the portable sensor for monitoring the user behavior at the current moment;
and correcting the user behavior at the current moment according to the feedback signal strengths of all the sensors related in the user behavior switching topological relation and the estimated user behavior at the next moment, which are received by the portable sensors.
3. The method of claim 1, wherein correcting the current moment user behavior based on sensor output data monitoring the current moment user behavior and an estimated next moment user behavior comprises:
judging the user state of the user behavior at the current moment according to data output by a portable sensor for monitoring the user behavior at the current moment;
and correcting the user behavior at the current moment according to the user state of the user behavior at the current moment and the estimated user behavior at the next moment.
4. The method according to any one of claims 1-3, wherein obtaining the user behavior at the current time comprises: only the sensor for detecting the user behavior at the current moment is activated to enter a working state, and other sensors related in the user behavior switching topological relation enter a standby state.
5. A user behavior correction device, comprising:
the estimating unit is used for acquiring the user behavior at the current moment and estimating the user behavior at the next moment according to the pre-established user behavior switching topological relation; the user behavior switching topological relation comprises a plurality of user behaviors and possible switching relations of the user behaviors;
the correction unit is used for judging whether the user behavior at the current moment needs to be corrected according to a preset correction trigger condition, and correcting the user behavior at the current moment according to sensor output data for monitoring the user behavior at the current moment and the estimated user behavior at the next moment;
the correcting unit is further configured to obtain a duration of the user behavior at the current time, and determine that the user behavior at the current time needs to be corrected when the duration of the user behavior at the current time is greater than a preset first time threshold.
6. The device of claim 5, wherein the calibration unit is further configured to broadcast wireless signals to all sensors involved in the user behavior switching topology from the on-body sensor monitoring the user behavior at the current time; and correcting the user behavior at the current moment according to the feedback signal strengths of all sensors related in the user behavior switching topological relation and the estimated user behavior at the next moment, which are received by the portable sensors.
7. The device of claim 5, wherein the calibration unit is further configured to determine the user status of the user behavior at the current time according to data output by the on-body sensor monitoring the user behavior at the current time; and correcting the user behavior at the current moment according to the user state of the user behavior at the current moment and the estimated user behavior at the next moment.
8. The apparatus according to any one of claims 5-7, comprising: and the activation unit is used for activating the sensor for detecting the user behavior at the current moment to enter a working state, and other sensors related in the user behavior switching topological relation to enter a standby state.
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| CN104680046A (en) * | 2013-11-29 | 2015-06-03 | 华为技术有限公司 | User activity recognition method and device |
| CN104035396A (en) * | 2014-04-18 | 2014-09-10 | 重庆大学 | Distributed behavior identification method based on wireless sensor network |
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