CN103581446B - A kind of profile switching method and electric terminal - Google Patents

Abstract

A scene mode switching method and an electronic terminal, the electronic terminal is equipped with an ultrasonic sensor, the steps of the method include: preset and store a characteristic reference value and/or a characteristic reference range uniquely corresponding to each scene mode; The sensor emits an ultrasonic pulse beam of a predefined frequency band and receives the reflected return wave at the same time; extracts the frequency data of the return wave, and performs statistical analysis on the frequency data to obtain statistical characteristic values; compares the statistical characteristic value with the preset The feature reference value or the feature reference range is matched, and if the match is successful, then switch to the corresponding scene mode. The invention automatically detects the activities of objects within the monitorable range of the surrounding environment by using the Doppler effect of ultrasound, automatically identifies the application occasion and adjusts the electronic terminal to an appropriate scene mode in real time, which is humanized and intelligent, and easy to operate. Accurate and reliable.

Description

A scene mode switching method and electronic terminal

technical field

The invention relates to the technical field of electronic equipment, in particular to a scene mode switching method and an electronic terminal.

Background technique

At present, mobile phones, especially smart phones, have been widely used, and occupy an important position in people's daily life and work. As a tool for information exchange, it not only brings convenience to people, but also brings some troubles correspondingly, such as suddenly receiving incoming calls in relatively quiet public places such as conferences and business negotiations, ringing loudly, or leaving mobile phones on hold. The entire conference table vibrates and buzzes, which disturbs others and causes embarrassment; another example is when you are disturbed by incoming calls or message ringtones during a break, which affects the work and rest of users and even others. To this end, software engineers have defined a variety of different modes in the mobile phone, which can be adapted to various usage scenarios by switching to different modes, so as to avoid the above-mentioned troubles. But at present, the switching of mobile phone modes basically requires the user to switch manually. When the user enters a different occasion, he needs to remember to implement the operation of switching modes. However, the fast pace of modern society makes people often forget this detail. This caused a lot of embarrassment. Therefore, it is particularly desirable to have a method for automatically switching scene modes by automatically adapting to the usage occasion of the mobile phone.

Contents of the invention

In order to overcome the deficiencies in the prior art referred to above, the present invention provides a scene mode switching method and an electronic terminal, so as to automatically adjust the scene mode and avoid reminder signals sent by sudden incoming calls or receiving information. disturb the user or others.

The present invention is achieved through the following technical solutions:

A method for switching scene modes of an electronic terminal, the electronic terminal is equipped with an ultrasonic sensor, and the steps of the method include:

S1. Preset and store the characteristic reference value and/or characteristic reference range uniquely corresponding to each scene mode;

S2. The ultrasonic sensor transmits an ultrasonic pulse beam of a predefined frequency band, and simultaneously receives reflected return waves;

S3. Extract frequency data of the return wave, and perform statistical analysis on the frequency data to obtain statistical feature values;

S4. Match the statistical feature value with a preset feature reference value or feature reference range, and switch to a corresponding scene mode if the matching is successful.

After the step S1 and before the step S2, the method further includes: S0, detecting an event associated with the ring tone or vibration reminder function, triggering the scene mode automatic switching function, and turning on the ultrasonic sensor.

Further, in the step S2, the ultrasonic sensor randomly transmits ultrasonic pulse beams with predefined frequency bands and amplitudes in N directions, where N is a natural number greater than zero.

Statistical analysis of the frequency data in step S3 includes mean value calculation, variance analysis and regression analysis, and the statistical feature values include measured frequency values, frequency mean values and frequency variances.

The matching success in the step S4 means that one of the statistical feature values matches the corresponding feature reference value or feature reference range successfully, or each statistical feature value matches the corresponding feature reference value or feature reference range success.

Further, the step S4 includes:

S41. Match the statistical characteristic value with the preset characteristic reference value. If the matching is successful, switch to the corresponding scenario mode, otherwise execute step S42;

S42. Match the statistical feature value with a preset feature reference range, and switch to a corresponding scenario mode if the matching is successful.

Preferably, said step S4 includes:

S41. Match the statistically obtained frequency variance with the feature reference value of each scene mode, if the frequency variance is the same as a feature reference value, switch to the corresponding scene mode, otherwise execute step S42;

S42. Match the frequency variance with the feature reference range of each scenario mode, and switch to the corresponding scenario mode if the frequency variance is within a feature reference range.

The scene modes in the scene mode switching method include one or more of standard mode, conference mode, outdoor mode, sleep mode and flight mode.

The present invention also provides an electronic terminal, which is equipped with an ultrasonic sensor, including:

The parameter setting module is used to preset and store the characteristic reference value and/or characteristic reference range uniquely corresponding to each scene mode;

The signal transceiver module is used to transmit the ultrasonic pulse beam of the predefined frequency band and receive the reflected return wave at the same time;

The data analysis module is used to extract the frequency data of the return wave, and perform statistical analysis on the frequency data to obtain statistical feature values;

The switching module is used to match the statistical feature value with the preset feature reference value or feature reference range, and switch to the corresponding scene mode if the matching is successful.

The data analysis module is used to perform statistical analysis on the frequency data, including mean value calculation, variance analysis and regression analysis, and the statistical characteristic value includes frequency measured value, frequency mean value and frequency variance.

Compared with the prior art, the present invention provides users with a more convenient and accurate scene mode switching method, based on the ultrasonic sensor, by using the Doppler effect of ultrasonic to accurately and automatically detect the human body or objects within the monitorable range of the surrounding environment activities, automatically identify the application and adjust the electronic terminal to an appropriate scene mode in real time, so as to avoid the reminder signal from the program such as a sudden incoming call or receiving information from disturbing the user and others; the degree of humanization and intelligence is high, and the operation Accurate and reliable.

Description of drawings

Accompanying drawing 1 is the realization flowchart of the scene mode switching method of an embodiment of the present invention;

Figure 2 is a frame diagram of an electronic terminal according to an embodiment of the present invention.

detailed description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings.

A method for switching scene modes of an electronic terminal, the electronic terminal is equipped with an ultrasonic sensor, and the steps of the method include:

S1. Preset and store the characteristic reference value and/or characteristic reference range uniquely corresponding to each scene mode;

S2. The ultrasonic sensor transmits an ultrasonic pulse beam of a predefined frequency band, and simultaneously receives reflected return waves;

S3. Extract frequency data of the return wave, and perform statistical analysis on the frequency data to obtain statistical feature values;

S4. Match the statistical feature value with a preset feature reference value or feature reference range, and switch to a corresponding scene mode if the matching is successful.

The principle of the present invention is to use the Doppler effect of sound waves to judge the current environment of the user through the ultrasonic sensor. Range) return wave, analyze the spectrum information of the return wave, and determine the corresponding scene mode accordingly. For example, during a lunch break, all objects around are in a static state, and the frequency of the return wave is basically unchanged, and it is recognized as a sleep mode. At this time, the incoming call or text message reminder is muted.

In the present invention, the scene mode may include one or more of standard mode, conference mode, outdoor mode, sleep mode and flight mode. In step S1, a feature reference value or feature reference range uniquely corresponding to each scene mode is preset, and the feature reference value or feature reference range is used as a reference for statistical data such as frequency measured value, frequency mean value, and frequency variance.

After the step S1, but before the step S2, it also includes: S0, detecting an event associated with the ring tone or vibration reminder function, triggering the scene mode automatic switching function, and turning on the ultrasonic sensor. In order to save power, the mobile phone is generally set to the default scene mode, only when incoming calls, receiving messages, etc. need to interact with the user and affect the current user's environment through ringtones or vibration reminders, such as receiving incoming calls or short messages , the scene mode automatic switching function will be triggered.

In the step S2, the ultrasonic sensor randomly transmits ultrasonic pulse beams with predefined frequency bands and amplitudes in N directions to the three-dimensional space where the electronic terminal is located. N is a natural number greater than zero. Preferably, N can be customized. After the emitted ultrasonic pulse beam encounters an object, it will be reflected back and received. If the ultrasonic wave encounters a stationary object, it will return at the original frequency. If it encounters a moving object, the ultrasonic wave will undergo the Doppler effect, that is, the object is far away from the ultrasonic source, and the return wave frequency will decrease. If the object is close to the ultrasonic wave source, the return wave frequency will increase. Accordingly, by analyzing the frequency data of the return wave, it can be judged whether the object or the human body in the current environment is in a state of being stationary or far away or approaching.

In the step S2, the ultrasonic sensor simultaneously receives ultrasonic waves reflected within a certain range. The ultrasonic receiving range of the ultrasonic sensor can be determined by adjusting the intensity of ultrasonic waves. According to the characteristic that the amplitude of ultrasonic waves becomes smaller as the distance of propagation increases, the size of the environment to be monitored can be determined by setting the amplitude of the ultrasonic pulse beam.

In the step S3, the electronic terminal extracts the characteristics of the reflected ultrasonic waves, especially the frequency data, and performs mathematical statistics on the frequency data of the returned waves in various directions, including random variables, mean values, variance analysis, and regression analysis. Preferably, performing statistical analysis on the frequency data in step S3 includes performing mean value calculation, variance analysis and regression analysis, and the statistical feature values include measured frequency values, frequency mean values and frequency variances.

In step S4, according to the matching result of the statistical analysis result in step S3 and the reference data preset by the system, the environment in which the electronic terminal is located and a suitable scene mode are determined. Preferably, the reference data preset by the system is divided into two parts, one part is the fixed feature reference value corresponding to each scene mode, and the other is the predefined feature reference range of each scene mode. In step S4, the matching success means that one of the statistical feature values matches the corresponding feature reference value or feature reference range successfully, or each statistical feature value matches the corresponding feature reference value or feature reference range The match was successful. In one embodiment of the method, if it can be successfully matched with a certain item of the system preset feature reference value, then switch to the scene mode corresponding to the feature reference value; The value is matched with the predefined feature reference range to determine the corresponding scenario mode. For example, if the measured values of the frequencies of the return waves in all directions are fixed transmit wave frequencies, and ideally, the frequency variance is zero, then it is judged that the environment at this time is in a quiet place, and it may be inferred that people around are sleeping , or in a meeting, if the measured frequency value or the frequency variance is the same as the characteristic reference value of the meeting mode, the scene mode will be automatically set to the meeting mode, and the vibration and ringtone reminder functions will be turned off in the meeting mode to avoid disturbing others; If the statistically obtained frequency variance of the return waves in each direction is large and the matching feature reference value fails, it means that the frequency data is scattered and the difference is large. It can be judged that the electronic terminal is located outdoors with many people. If the frequency variance is just outside The characteristics of the mode are within the reference range. At this time, the scene mode is set as the outdoor mode. Taking a mobile phone as an example, in the outdoor mode, the mobile phone can be set to vibrate and alert the user with a ring tone at the maximum volume.

In an embodiment of the method, the step S4 includes:

S41. Match the statistical characteristic value with the preset characteristic reference value. If the matching is successful, switch to the corresponding scenario mode, otherwise execute step S42;

S42. Match the statistical feature value with a preset feature reference range, and switch to a corresponding scenario mode if the matching is successful.

Since the frequency variance can more intuitively reflect the variation of the frequency, preferably, the step S4 includes:

S41. Match the statistically obtained frequency variance with the feature reference value of each scene mode, if the frequency variance is the same as a feature reference value, switch to the corresponding scene mode, otherwise execute step S42;

S42. Match the frequency variance with the feature reference range of each scenario mode, and switch to the corresponding scenario mode if the frequency variance is within a feature reference range.

Specifically, as shown in FIG. 1 , taking a smart phone as an example, the present invention also provides an implementation process of a scene mode switching method in an embodiment, the steps of which include:

S101. Preset and store the characteristic reference value and characteristic reference range uniquely corresponding to each scene mode;

S102. Detecting an event associated with the ring tone or vibration reminder function;

S103, triggering the scene mode automatic switching function, and turning on the ultrasonic sensor;

S104. The ultrasonic sensor transmits an ultrasonic pulse beam of a predefined frequency band and receives reflected return waves;

S105, extracting the frequency data of the return wave;

S106. Perform statistical analysis on the frequency data to obtain statistical feature values;

S107. Match the statistical feature value with a preset feature reference value;

S108, judging whether the matching is successful, if so, execute step S111, otherwise execute step S109;

S109. Match the statistical feature value with a preset feature reference range;

S110, judging whether the matching is successful, if so, execute step S111, otherwise return to step S104;

S111. Switch to a corresponding scene mode.

The present invention also provides an electronic terminal, which is equipped with an ultrasonic sensor, including:

The parameter setting module 21 is used to preset and store the characteristic reference value and/or characteristic reference range uniquely corresponding to each scene mode;

The signal transceiving module 22 is used to transmit the ultrasonic pulse beam of the predefined frequency band, and simultaneously receive the reflected return wave;

The data analysis module 23 is used to extract the frequency data of the return wave, and perform statistical analysis on the frequency data to obtain statistical feature values;

The switching module 24 is configured to match the statistical feature value with a preset feature reference value or feature reference range, and switch to a corresponding scene mode if the matching is successful.

The preset scene modes of the electronic terminal include one or more of standard mode, conference mode, outdoor mode, sleep mode and flight mode.

The electronic terminal also includes a starting module 20, configured to trigger the scene mode automatic switching function and turn on the ultrasonic sensor after detecting an event associated with the ring tone or vibration reminder function.

Further, the signal transceiving module 22 used to transmit ultrasonic pulse beams means to randomly transmit ultrasonic pulse beams with predefined frequency bands and amplitudes in N directions, where N is a natural number greater than zero.

The data analysis module 23 is used to perform statistical analysis on the frequency data, including mean value calculation, variance analysis and regression analysis, and the statistical characteristic values include frequency measured values, frequency mean values and frequency variances.

The successful matching means that one of the statistical characteristic values matches the corresponding characteristic reference value or characteristic reference range successfully, or each statistical characteristic value matches successfully with the corresponding characteristic reference value or characteristic reference range.

In one embodiment of the present invention, the switching module 24 includes:

The fixed value matching unit 241 is used to match the statistical feature value with the preset feature reference value, if the matching is successful, then switch to the corresponding scene mode, otherwise start the range matching unit;

The range matching unit 242 is configured to match the statistical feature value with a preset feature reference range, and switch to a corresponding scene mode if the matching is successful.

Preferably, the switching module includes:

The fixed value matching unit is used to match the statistically obtained frequency variance with the feature reference value of each scene mode, if the frequency variance is the same as a feature reference value, then switch to the corresponding scene mode, otherwise start the range matching unit;

The range matching unit is configured to match the frequency variance with the feature reference range of each scenario mode, and switch to the corresponding scenario mode if the frequency variance is within a feature reference range.

The above content is a further detailed description of the present invention in combination with specific preferred modes, and it should not be deemed that the specific implementation of the present invention is limited to the above description. For those skilled in the art, without departing from the concept of the present invention, some simple deductions or substitutions can be made, which should be considered within the protection scope determined by the claims submitted in the present invention.

Claims (6)

1. A scene mode switching method of an electronic terminal, the electronic terminal is equipped with an ultrasonic sensor, and the steps of the method include: S1. Preset and store the characteristic reference value and/or characteristic reference range uniquely corresponding to each scene mode; S2. The ultrasonic sensor transmits an ultrasonic pulse beam of a predefined frequency band, and simultaneously receives reflected return waves; S3. Extract frequency data of the return wave, and perform statistical analysis on the frequency data to obtain statistical feature values; S4. Match the statistical feature value with a preset feature reference value or feature reference range, and switch to a corresponding scene mode if the matching is successful; After the step S1, before the step S2 also includes, S0, detecting an event associated with the ring tone or vibration reminder function, triggering the automatic switching function of the scene mode, and turning on the ultrasonic sensor; The ultrasonic sensor described in step S2 randomly transmits ultrasonic pulse beams with predefined frequency bands and amplitudes in N directions, where N is a natural number greater than zero; Described step S4 comprises: S41. Match the statistical characteristic value with the preset characteristic reference value. If the matching is successful, switch to the corresponding scenario mode, otherwise execute step S42; S42. Match the statistical feature value with a preset feature reference range, and switch to a corresponding scene mode if the matching is successful; Alternatively, the step S4 includes: S41. Match the statistically obtained frequency variance with the feature reference value of each scene mode, if the frequency variance is the same as a feature reference value, switch to the corresponding scene mode, otherwise execute step S42; S42. Match the frequency variance with the feature reference range of each scenario mode, and switch to the corresponding scenario mode if the frequency variance is within a feature reference range. 2. The scene mode switching method of an electronic terminal according to claim 1, wherein the statistical analysis of the frequency data in step S3 includes mean value calculation, variance analysis and regression analysis, and the statistical characteristic value includes frequency Measured value, frequency mean, and frequency variance. 3. The scene mode switching method of the electronic terminal according to claim 2, characterized in that: the successful matching in the step S4 refers to one of the statistical feature values and the corresponding feature reference value or feature reference range The matching is successful, or each statistical feature value is successfully matched with the corresponding feature reference value or feature reference range. 4. The scene mode switching method of an electronic terminal according to any one of claims 1 to 3, wherein the scene mode includes one of standard mode, conference mode, outdoor mode, sleep mode, and flight mode or two or more. 5. An electronic terminal, which is equipped with an ultrasonic sensor, is characterized in that, comprising: The parameter setting module is used to preset and store the characteristic reference value and/or characteristic reference range uniquely corresponding to each scene mode; The signal transceiver module is used to transmit the ultrasonic pulse beam of the predefined frequency band and receive the reflected return wave at the same time; The data analysis module is used to extract the frequency data of the return wave, and perform statistical analysis on the frequency data to obtain statistical feature values; A switching module, configured to match the statistical feature value with a preset feature reference value or feature reference range, and switch to a corresponding scene mode if the matching is successful; The startup module is used to trigger the scene mode automatic switching function and turn on the ultrasonic sensor after detecting an event associated with the ring tone or the vibration reminder function; The signal transceiver module used to transmit ultrasonic pulse beams refers to randomly transmitting ultrasonic pulse beams with predefined frequency bands and amplitudes in N directions, where N is a natural number greater than zero; The switching module includes: The fixed value matching unit is used to match the statistical feature value with the preset feature reference value, if the matching is successful, switch to the corresponding scene mode, otherwise start the range matching unit; A range matching unit 242, configured to match the statistical feature value with a preset feature reference range, and switch to a corresponding scene mode if the matching is successful; Alternatively, the switching module includes: The fixed value matching unit is used to match the statistically obtained frequency variance with the feature reference value of each scene mode, if the frequency variance is the same as a feature reference value, then switch to the corresponding scene mode, otherwise start the range matching unit; The range matching unit is configured to match the frequency variance with the feature reference range of each scenario mode, and switch to the corresponding scenario mode if the frequency variance is within a feature reference range. 6. The electronic terminal according to claim 5, characterized in that: the data analysis module is used to perform statistical analysis on the frequency data including mean value calculation, variance analysis and regression analysis, and the statistical characteristic value includes frequency measurement value, frequency mean, and frequency variance.