CN105225680B - Audio frequency playing method and device with horizontal displacement is changed based on height above sea level - Google Patents

Abstract

The present invention proposes an audio playback method and device based on altitude change and horizontal displacement, including dividing audio into different types, setting audio types corresponding to each motion state, and the motion state types are divided into terrain state and speed state; Motion detection and corresponding audio playback. The present invention can select and play appropriate audio by detecting the altitude change and horizontal displacement of climbers, further improves the intelligence of the audio playback device, meets the needs of many sports enthusiasts, and brings better auditory experience to climbers.

Description

Audio playback method and device based on altitude change and horizontal displacement

technical field

The invention relates to an audio playback method and device based on altitude change and horizontal displacement, and belongs to the application of audio technology in the field of sports.

Background technique

People often like to listen to music while exercising, such as running, climbing, by listening to music or other types of audio such as birdsong, etc., can increase the fun of exercise, eliminate exercise fatigue, and adjust the exercisers (mainly mountaineering) person) mood, thereby promoting the efficiency of exercise and improving the effect of exercise. However, most of the music and audio that people listen to when exercising are randomly played or sequentially played after selecting a group of music, but people often tend to listen to different types of music or audio when they are in different exercise states. Take mountain climbing as an example. When climbing a mountain, if the climbing path is steep or the climbing speed is fast, the climber will consume more energy. If he listens to a more majestic and powerful audio at this time, it will help the climber to continue to persevere and climb the mountain. The top of the mountain; if the climbing route is gentle or the climbing speed is slow, the climbers will consume less energy and feel more relaxed, and they often like to listen to more relaxed audio. Since the current technology cannot achieve automatic switching, the music or audio can only be switched manually, which brings inconvenience to the climbers, and the climbers need to divert their attention and free their hands to switch music during exercise. Make sports have safety hazards. At present, the market has not yet noticed this demand, and no relevant technical solutions appear.

Contents of the invention

The present invention proposes an audio playback method and device based on altitude change and horizontal displacement, with the purpose of automatically selecting appropriate audio for playback according to the altitude change and horizontal displacement of climbers.

The technical solution of the present invention proposes an audio playback method based on altitude change and horizontal displacement, comprising the following steps:

Step 1, audio classification, including dividing audio into different types, the number of types is recorded as M;

Step 2, motion state setting, including setting the audio type corresponding to each motion state; the motion state type of the climber is divided into terrain state and speed state, and terrain state includes "steep state", "gentle state" and "flat road State", the speed state includes "fast state", "medium speed state" and "slow speed state";

Step 3, motion state detection and corresponding audio playback, including the following sub-steps,

Step 3.1, record the number of times of detection as n, record the time of corresponding detection as T(n), initialize n=1, perform initial detection of altitude and horizontal displacement, and detect the altitude H(1) and level of the current climber's position position S(1);

Step 3.2, initial audio playback;

Step 3.3 is to detect the motion state, including after a period of time t, make n=n+1, detect the altitude H(n) and the horizontal position S(n) of the current climber's position, and the time of detection is recorded as T(n);

Step 3.4, motion state calculation and judgment, includes the following sub-steps,

Step 3.4.1, judge whether the altitude change DelH(n) is not equal to 0 and the horizontal displacement DelS(n) is equal to 0, if it is judged that the terrain state is "steep state", go to step 3.5, otherwise go to step 3.4.2;

Among them, DelH(n)=|H(n)-H(n-1)|, DelS(n)=|S(n)–S(n-1)|;

Step 3.4.2, judging whether the horizontal displacement DelS(n) is equal to 0, if so, it is judged that the climber is in a "flat road state", and then go to step 3.4.5, otherwise go to step 3.4.3;

Step 3.4.3, calculate the steepness D(n) of the climber's mountaineering road, D(n)=DelH(n)/DelS(n);

Step 3.4.4, carry out terrain state discrimination,

If D(n) is less than D1, the climber is in a "flat road state";

If D(n) is not less than D1 and less than D2, the climber is in a "flat state";

If D(n) is not less than D2, the climber is in a "steep state";

Among them, D1 is the preset division standard of "flat road state" and "smooth state", and D2 is the preset division standard of "smooth road state" and "steep state";

Step 3.4.5, calculate the climber’s spatial orientation change DelK(n) as follows,

Step 3.4.6, calculate the spatial orientation change speed VH(n)=DelK(n)/(T(n)-T(n-1)) of the climber;

In step 3.4.7, the speed state is judged as follows,

If VH(n) is less than V1, the climber is in a "slow state",

If VH(n) is not less than V1 and less than V2, the climber is in a "medium speed state",

If VH(n) is not less than V2, the climber is in a "fast state";

Among them, V1 is the division standard of "slow state" and "medium speed state", wherein V2 is the division standard of "medium speed state" and "fast state", and V1 and V2 are corresponding preset thresholds;

Step 3.5, judge whether the corresponding state of the detected time T(n) is different from the corresponding state of the last detected time T(n-1), if different, play the corresponding audio type according to the new state, if the audio type is the same, do not switch ; Then return to step 3.3 until the process is stopped.

Moreover, the audio is obtained by inputting from other electronic devices, or downloading from the network, or obtaining through recording, or producing and obtaining through an audio generation tool.

Moreover, let P1 represent "steep state", P2 represent "smooth state", P3 represent "flat road state", S1 represent "fast state", S2 represent "medium speed state", and S3 represent "slow state". The state set of climbers {P1S1, P1S2, P1S3, P2S1, P2S2, P2S3, P3S1, P3S2, P3S3} is formed. The correspondence between the comprehensive state and the audio type in the set is one-to-one, or one-to-many, or many-to-many one.

The present invention also provides an audio playback device based on altitude change and horizontal displacement, including the following modules:

The audio classification module is used to divide the audio into different types, and the number of types is denoted as M;

The motion state setting module is used to set the audio type corresponding to each motion state; the motion state type of the climber is divided into terrain state and speed state, and the terrain state includes "steep state", "smooth state" and "flat road state" ", the speed state includes "fast state", "medium speed state" and "slow speed state";

The altitude detection module is used to detect the altitude of the climber's current location;

The horizontal position detection module is used to detect the horizontal position of the climber's current position;

Timing module, used to record the corresponding time of detection;

The exercise state calculation module is used to calculate the current exercise state of the climber according to the altitude obtained by the altitude detection module, the horizontal position obtained by the horizontal position detection module and the time obtained by the timing module;

The audio playback module is used to obtain the audio type corresponding to the current motion state according to the motion state obtained by the motion state calculation module, and the motion state and the audio type correspondence of the motion state setting module, and play the audio of the audio type;

And, the audio playback works as follows,

The motion state calculation and judgment module records the number of times of detection as n, records the corresponding detection time obtained by the timing module as T(n), initializes n=1, and commands the altitude detection module and the horizontal position detection module to perform initial detection of altitude and horizontal displacement respectively , detect the altitude H(1) and the horizontal position S(1) of the current climber's location;

The audio playback module performs audio initial playback;

The motion state calculation and judgment module performs real-time motion state detection, including after an interval of time t, making n=n+1, ordering the altitude detection module and the horizontal position detection module to detect the altitude H(n ) and horizontal position S(n), the corresponding detected time obtained by the timing module is recorded as T(n); then the motion state is calculated and judged;

The audio playback module judges whether the corresponding state of the detected time T(n) is different from the corresponding state of the last detected time T(n-1), if different, plays the corresponding audio type according to the new state, and does not switch if the audio type is the same ; Then command the motion state calculation and judgment module to work until it stops.

Moreover, the motion state calculation and judgment module performs real-time motion state detection, and the implementation is as follows,

Step 3.4.1, judge whether the altitude change DelH(n) is not equal to 0 and the horizontal displacement DelS(n) is equal to 0, if it is judged that the terrain state is "steep state", go to step 3.5, otherwise go to step 3.4.2;

Among them, DelH(n)=|H(n)-H(n-1)|, DelS(n)=|S(n)–S(n-1)|;

Step 3.4.2, judging whether the horizontal displacement DelS(n) is equal to 0, if so, it is judged that the climber is in a "flat road state", and then go to step 3.4.5, otherwise go to step 3.4.3;

Step 3.4.3, calculate the steepness D(n) of the climber's mountaineering road, D(n)=DelH(n)/DelS(n);

Step 3.4.4, carry out terrain state discrimination,

If D(n) is less than D1, the climber is in a "flat road state";

If D(n) is not less than D1 and less than D2, the climber is in a "flat state";

If D(n) is not less than D2, the climber is in a "steep state";

Among them, D1 is the preset division standard of "flat road state" and "smooth state", and D2 is the preset division standard of "smooth road state" and "steep state";

Step 3.4.5, calculate the climber’s spatial orientation change DelK(n) as follows,

Step 3.4.6, calculate the spatial orientation change speed VH(n)=DelK(n)/(T(n)-T(n-1)) of the climber;

In step 3.4.7, the speed state is judged as follows,

If VH(n) is less than V1, the climber is in a "slow state",

If VH(n) is not less than V1 and less than V2, the climber is in a "medium speed state",

If VH(n) is not less than V2, the climber is in a "fast state";

Among them, V1 is the division standard of "slow state" and "medium speed state", wherein V2 is the division standard of "medium speed state" and "fast state", and V1 and V2 are corresponding preset thresholds.

Moreover, the audio is obtained by inputting from other electronic devices, or downloading from the network, or obtaining through recording, or producing and obtaining through an audio generation tool.

Moreover, let P1 represent "steep state", P2 represent "smooth state", P3 represent "flat road state", S1 represent "fast state", S2 represent "medium speed state", and S3 represent "slow state". The state set of climbers {P1S1, P1S2, P1S3, P2S1, P2S2, P2S3, P3S1, P3S2, P3S3} is formed. The correspondence between the comprehensive state and the audio type in the set is one-to-one, or one-to-many, or many-to-many one.

The present invention proposes an audio playback method and device based on altitude change and horizontal displacement. The climber's climbing speed and the steepness of the current mountaineering road can be obtained from the altitude change and horizontal displacement. By detecting the climber's altitude change and The horizontal displacement selects and plays the appropriate audio, without the need for the user to manually switch, which brings a better experience to the climbers and improves the safety of the climbers' movement. Many buyers of portable audio playback devices are sports enthusiasts. The automatic selection and switching playback technology proposed by the present invention can further improve the intelligence of audio playback devices and meet the needs of many sports enthusiasts. Therefore, the present invention will have a significant market. value.

Description of drawings

Fig. 1 is a block diagram of the device structure of the embodiment of the present invention.

Fig. 2 is a flow chart of real-time detection of the method of the embodiment of the present invention.

detailed description

Referring to Fig. 1, an embodiment of the present invention provides an audio playback device based on altitude change and horizontal displacement, including the following modules:

The audio classification module is used to divide the audio into different types, the number of types is M, and M is not less than 2, and the audio type is output to the motion state setting module.

During specific implementation, the audio can be input from other electronic devices, or downloaded from the network, or obtained through recording, or produced through an audio generation tool. Classification can be done manually or automatically. There are many bases for automatic classification, including but not limited to rhythm, melody, instrument, style, etc. Name, singer, etc. can also be used as part of the base, and can be classified according to the attributes of the audio file. You can download and classify several audios in advance, for example, 40 different styles of music and some audio recordings of natural sounds such as birdsong, which are divided into M1 "symphony", M2 "march", M3 "folk song", M4 "rock music". " and M5 "Birdsong" five audio types.

The exercise state setting module is used to set the corresponding audio type when the climber is in different exercise state types; output the exercise state type and audio type and the corresponding relationship to the audio playback module.

The type of motion state of climbers can be divided into two categories: terrain state and speed state. The terrain state can be set to the following types: P1 "steep state", P2 "smooth state", P3 "flat road state", and the speed state can be set For the following types: S1 "fast state", S2 "medium speed state", S3 "slow speed state". The combination of the two classification states constitutes the state set {P1S1, P1S2, P1S3, P2S1, P2S2, P2S3, P3S1, P3S2, P3S3} of the climber. For example, the comprehensive state P1S1 is in the P1 "steep state" and S1 "fast state" at the same time In the case of ", each state in the set can correspond to one audio type, or multiple states can correspond to one audio type, or one state can correspond to multiple audio types. That is, it is feasible that the correspondence between the motion state and the audio type is one-to-one, one-to-many, or many-to-one.

For example, the following correspondences can be made: states P1S1, P1S2, and P1S3 are all corresponding to M1, P2S1 is corresponding to M4, P2S2 is corresponding to M2, P2S3 is corresponding to M2 and M5, P3S1 and P3S2 are corresponding to M3 and M5, and P3S3 is corresponding to M5.

The altitude detection module is used to detect the altitude H(n) of the climber's current location, and output it to the exercise state calculation module, and use n to identify the record value of the altitude obtained by the nth detection of this exercise.

The horizontal position detection module is used to detect the horizontal position S(n) of the current position of the climber, and outputs it to the motion state calculation module, and uses n to identify the recorded value of the horizontal position obtained by the nth detection of this movement.

Existing technologies can be used for specific detection. When climbers climb mountains, existing detection sensors are used to obtain altitude information and horizontal position information. Refer to smart phones with corresponding detection functions.

The timing module is used to record the corresponding time T(n) of the nth detection, and output the time T(n) to the motion state calculation module. Absolute time can be used, such as Beijing time and Greenwich mean time, and relative time can also be recorded, such as the current relative climbing start time.

The motion calculation module records the altitude H(n) input by the altitude detection module, the horizontal position S(n) obtained by the horizontal position detection module and the current time T(n) input by the timing module, and calculates the climber's current Motion state, and output the motion state to the audio playback module, the specific implementation is as follows:

Calculate the altitude change DelH(n) according to formula (1), where H(n-1) is the altitude recorded at T(n-1),

DelH(n)＝|H(n)-H(n-1)| formula (1)

The horizontal position S(n) at the time T(n) and the horizontal position S(n-1) at the time T(n-1) obtained by the horizontal position detection module obtain the horizontal displacement DelS(n) according to the formula (2)

DelS(n)＝|S(n)–S(n-1)| formula (2)

If the altitude change DelH(n) is equal to 0 and the horizontal displacement DelS(n) is equal to 0, it means that the climber is in a static state, which can be regarded as the climber is in a "flat road state", without any operation, directly return to the original start of the process The step is to perform detection at the next moment; the "stationary state" can also be used as a separate state to play the corresponding music. If the altitude change DelH(n) is not equal to 0 and the horizontal displacement DelS(n) is equal to 0, it means that the climber is doing vertical movement, and the terrain state is "steep state";

If the horizontal displacement DelS(n) is not equal to 0, according to the altitude change DelH(n) and the horizontal displacement DelS(n) according to the formula (3) to calculate the steepness of the climber's climbing path D(n)

D(n)＝DelH(n)/DelS(n) formula (3)

If D(n) is less than D1, the climber is in a "flat state", for example, when DelH(n) is equal to 0; if D(n) is not less than D1 and less than D2, the climber is in a "flat state", if D (n) not less than D2, the climber is in a "steep state", where D1 is the division standard between "flat road state" and "smooth state", where D2 is the division standard of "smooth state" and "steep state", D1 and D2 are the corresponding preset thresholds, which can be set by the climbers themselves according to their own feelings, or can be obtained from statistics,

Calculate according to the altitude change DelH(n) and the horizontal displacement DelS(n) according to the formula (4) to calculate the spatial orientation change DelK(n) of the climber,

Formula (4)

Calculate the speed VH(n) of the climber's spatial orientation change according to formula (5) to judge its speed state,

VH(n)＝DelK(n)/(T(n)-T(n-1)) formula (5)

If VH(n) is less than V1, the climber is in the "slow state", if VH(n) is not less than V1 and less than V2, the climber is in the "medium speed state", if VH(n) is not less than V2, then Climbers are in the "fast state", where V1 is the division standard of "slow state" and "medium speed state", among which V2 is the division standard of "medium speed state" and "fast state", V1 and V2 are the corresponding pre-scheduled The threshold can be set by the climbers themselves according to their physical fitness, or can be obtained from statistics;

In the above calculation, n>1, that is, no motion state calculation is performed during the first recording;

Audio playback module is used to obtain the corresponding audio type of the current motion state according to the motion state obtained by the motion state calculation module, and the motion state and audio type correspondence of the motion state setting module, and plays the audio frequency of this audio type, in order to improve For the sake of efficiency, the motion state obtained by the motion state calculation module can be compared with the original motion state stored in the audio playback module. If the same, the original audio will continue to be played. If it is different, the new audio type will be switched and played.

During specific implementation, modules can be added to existing mp3, mp4, mobile phones and other equipment to realize the device provided by the present invention, and software technology can also be used to realize automatic operation of corresponding processes. An audio playback method based on altitude change and horizontal displacement provided by an embodiment of the present invention includes the following steps:

Step 1, audio classification, including classifying audio into different types, the number of types is M, and M is generally not less than 2.

Step 2, exercise state setting, including setting the audio type corresponding to each exercise state.

Step 3, motion state detection and corresponding audio playback, including the following sub-steps,

Step 3.1, perform initial detection of altitude and horizontal displacement, and detect the altitude H(1) and horizontal position S(1) of the current climber's location;

During specific implementation, the number of times of detection can be recorded as n, initialization n=1, step 3.1 is to detect for the first time, the altitude H(n) obtained is H(1), and the horizontal position S(1) is obtained in the same way; the time of detection Denoted as T(n), ie T(1).

In step 3.2, the audio is initially played. The audio can be played randomly, or it can be played in a certain mode by default, such as M2.

Step 3.3, after a period of time t, make n=n+1, re-execute the motion state detection, and detect the altitude H(n) and the horizontal position S(n) of the current climber's position. During specific implementation, t The value can be set by the user or the preset default setting is used to adjust the time interval between two motion state detections. A relatively small time can be set to track the state of the user in time; the detection time is recorded as T(n) .

Step 3.4, motion state calculation and judgment, includes the following sub-steps,

Step 3.4.1, judge whether the altitude change DelH(n) is not equal to 0 and the horizontal displacement DelS(n) is equal to 0, if it is judged that the terrain state is "steep state", go to step 3.5, otherwise go to step 3.4.2;

Among them, DelH(n)=|H(n)-H(n-1)|, DelS(n)=|S(n)–S(n-1)|;

Step 3.4.2, judging whether the horizontal displacement DelS(n) is equal to 0, if so, it is judged that the climber is in a "flat road state", and then go to step 3.4.5, otherwise go to step 3.4.3;

Step 3.4.3, this time is the situation that the horizontal displacement DelS(n) is not equal to 0, calculate the steepness D(n) of the climber's mountaineering road, D(n)=DelH(n)/DelS(n);

Step 3.4.4, carry out terrain state discrimination,

If D(n) is less than D1, the climber is in a "flat road state";

If D(n) is not less than D1 and less than D2, the climber is in a "flat state";

If D(n) is not less than D2, the climber is in a "steep state";

Among them, D1 is the preset division standard of "flat road state" and "smooth state", and D2 is the preset division standard of "smooth road state" and "steep state";

Step 3.4.5, calculate the climber’s spatial orientation change DelK(n) as follows,

Step 3.4.6, calculate the spatial orientation change speed of the climber VH(n)=DelK(n)/(T(n)-T(n-1))

In step 3.4.7, the speed state is judged as follows,

If VH(n) is less than V1, the climber is in a "slow state",

If VH(n) is not less than V1 and less than V2, the climber is in a "medium speed state",

If VH(n) is not less than V2, the climber is in a "fast state";

Among them, V1 is the division standard of "slow state" and "medium speed state", wherein V2 is the division standard of "medium speed state" and "fast state", and V1 and V2 are corresponding preset thresholds;

See Figure 2 for the specific implementation process.

Step 3.5, judge whether the corresponding state of the detected time T(n) is different from the corresponding state of the last detected time T(n-1), if different, play the corresponding audio type according to the new state, if the audio type is the same, do not switch .

Then return to step 3.3 until the process is stopped. During specific implementation, it can be turned off manually by the user, or it can be turned off when it automatically detects that the altitude and horizontal position of T have not changed for a period of time, and the T value can be set as a default value or set by the user.

Parts not described in detail in the present invention belong to the well-known technologies in the art.

The above embodiments are only for the purpose of illustrating the present invention, rather than limiting the present invention. Those skilled in the relevant technical fields can also make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all Equivalent technical solutions all fall within the protection scope of the present invention.

Claims (8)

1. a kind of audio frequency playing method changed based on height above sea level with horizontal displacement, it is characterised in that comprise the following steps：

Step 1, audio classification, including audio is divided into different type, number of types is designated as M；

Step 2, motion state is set, including sets the corresponding audio types of every kind of motion state；The motion state class of climber Type is divided into physical features state and speed state, and physical features state includes " precipitous state ", " gentle state " and " level road state ", speed shape State includes " fast state ", " middling speed state ", " state at a slow speed "；

Step 3, motion state detection and correspondingly audio broadcasting, including following sub-step,

Step 3.1, note detection number of times is n, and the time accordingly detected is designated as T (n), initializes n=1, carries out height above sea level and water Prosposition moves initial detecting, detects the height above sea level H (1) and horizontal level S (1) of current climber present position；

Step 3.2, audio initial play；

Step 3.3, motion state detection is carried out, is included in after certain interval of time t, n=n+1 is made, current climber institute is detected Locate the height above sea level H (n) and horizontal level S (n) of position, the time of detection is designated as T (n)；

Step 3.4, motion state, which is calculated, judges, including following sub-step,

Step 3.4.1, judges whether that height above sea level changes DelH (n) and is not equal to 0 and horizontal displacement DelS (n) equal to 0, is to sentence Disconnected physical features state is " precipitous state ", into step 3.5, otherwise into step 3.4.2；

Wherein, DelH (n)=| H (n)-H (n-1) |, DelS (n)=| S (n)-S (n-1) |；

Step 3.4.2, judges whether that horizontal displacement DelS (n) is equal to 0, is then to judge that climber is in " level road state ", enters Step 3.4.5, otherwise into step 3.4.3；

Step 3.4.3, calculates the steep D (n), D (n)=DelH (n)/DelS (n) on the road of climber's mountain-climbing；

Step 3.4.4, carries out physical features condition discrimination,

If D (n) is less than D1, climber is in " level road state "；

If D (n) is not less than D1 and less than D2, climber is in " gentle state "；

If D (n) is not less than D2, climber is in " precipitous state "；

Wherein, D1 is the default criteria for classifying of " level road state " and " gentle state ", and wherein D2 is " gentle state " and " precipitous shape The default criteria for classifying of state "；

Step 3.4.5, the dimensional orientation change DelK (n) for calculating climber is as follows,

Step 3.4.6, calculates dimensional orientation pace of change VH (n)=DelK (n)/(T (n)-T (n-1)) of climber；

Step 3.4.7, carries out speed state and differentiates as follows,

If VH (n) is less than V1, climber is in " state at a slow speed ",

If VH (n) is not less than V1 and less than V2, climber is in " middling speed state ",

If VH (n) is not less than V2, climber is in " fast state "；

Wherein, V1 is the criteria for classifying of " state at a slow speed " and " middling speed state ", and wherein V2 is " middling speed state " and " fast state " The criteria for classifying, V1 and V2 are corresponding predetermined threshold value；

Step 3.5, whether not time T (n) corresponding states and last time T (n-1) corresponding state detected of detection are judged Together, do not switched if audio types are identical according to the new corresponding audio types of state plays if different；It is then back to Step 3.3, until stopping flow.

2. the audio frequency playing method with horizontal displacement is changed based on height above sea level according to claim 1, it is characterised in that：Institute It is to input to obtain from other electronic equipments to state audio, or downloads acquisition from network, or is obtained by recording, or is generated by audio Tool making is obtained.

3. the audio frequency playing method according to claim 1 or claim 2 changed based on height above sea level with horizontal displacement, its feature is existed In：If P1 represents that " precipitous state ", P2 represent that " gentle state ", P3 are represented " level road state ", S1 represents " fast state ", S2 tables Show that " middling speed state ", S3 are represented " state at a slow speed ", it is comprehensive after constitute climber state set P1S1, P1S2, P1S3, P2S1, P2S2, P2S3, P3S1, P3S2, P3S3 }, comprehensive state and the corresponding relation of audio types are one-to-one in set, or It is one-to-many, or many-one.

4. a kind of audio playing apparatus changed based on height above sea level with horizontal displacement, it is characterised in that including with lower module：

Audio classification module, for audio to be divided into different type, number of types is designated as M；

Motion state setup module, for setting the corresponding audio types of every kind of motion state；The motion state type of climber It is divided into physical features state and speed state, physical features state includes " precipitous state ", " gentle state " and " level road state ", speed state Including " fast state ", " middling speed state ", " state at a slow speed "；

Height above sea level detection module, for detecting that climber is presently in the height above sea level of position；

Horizontal level detection module, for detecting that climber is presently in the horizontal level of position；

Timing module, the corresponding time for recording detection；

Motion state computing module, for according to height above sea level, horizontal level the detection mould obtained by height above sea level detection module The time that the horizontal level and timing module that block is obtained are obtained, calculating obtains the current motion state of climber；

Audio playing module, for according to the motion state obtained by motion state computing module, and motion state setup module Motion state and audio types corresponding relation, obtain the corresponding audio types of current motion state, and play the audio types Audio.

5. the audio playing apparatus with horizontal displacement is changed based on height above sea level according to claim 4, it is characterised in that：Sound The frequency broadcasting course of work is as follows,

It is n that motion state, which calculates judge module note detection number of times, is designated as into T (n), just the time accordingly detected obtained by timing module Beginningization n=1, order height above sea level detection module and horizontal level detection module carry out height above sea level respectively and horizontal displacement is initial Detection, detects the height above sea level H (1) and horizontal level S (1) of current climber present position；

Audio playing module carries out audio initial play；

Motion state calculates judge module and carries out real time kinematics state-detection, is included in after certain interval of time t, makes n=n+1, Order height above sea level detection module and horizontal level detection module detect the height above sea level H of current climber present position respectively (n) with horizontal level S (n), the time accordingly detected obtained by timing module is designated as T (n)；Then motion state calculating is carried out to sentence It is disconnected；

Audio playing module judges that time T (n) corresponding states and time T (n-1) corresponding state of last time detection of detection are No difference, according to the new corresponding audio types of state plays if different, does not switch if audio types are identical；Then Order motion state calculates judge module work, until stopping.

6. the audio playing apparatus with horizontal displacement is changed based on height above sea level according to claim 5, it is characterised in that：Institute State motion state and calculate judge module progress real time kinematics state-detection, implementation is as follows,

Step 3.4.1, judges whether that height above sea level changes DelH (n) and is not equal to 0 and horizontal displacement DelS (n) equal to 0, is to sentence Disconnected physical features state is " precipitous state ", into step 3.5, otherwise into step 3.4.2；

Wherein, DelH (n)=| H (n)-H (n-1) |, DelS (n)=| S (n)-S (n-1) |；

Step 3.4.2, judges whether that horizontal displacement DelS (n) is equal to 0, is then to judge that climber is in " level road state ", enters Step 3.4.5, otherwise into step 3.4.3；

Step 3.4.3, calculates the steep D (n), D (n)=DelH (n)/DelS (n) on the road of climber's mountain-climbing；

Step 3.4.4, carries out physical features condition discrimination,

If D (n) is less than D1, climber is in " level road state "；

If D (n) is not less than D1 and less than D2, climber is in " gentle state "；

If D (n) is not less than D2, climber is in " precipitous state "；

Wherein, D1 is the default criteria for classifying of " level road state " and " gentle state ", and wherein D2 is " gentle state " and " precipitous shape The default criteria for classifying of state "；

Step 3.4.5, the dimensional orientation change DelK (n) for calculating climber is as follows,

Step 3.4.6, calculates dimensional orientation pace of change VH (n)=DelK (n)/(T (n)-T (n-1)) of climber；

Step 3.4.7, carries out speed state and differentiates as follows,

If VH (n) is less than V1, climber is in " state at a slow speed ",

If VH (n) is not less than V1 and less than V2, climber is in " middling speed state ",

If VH (n) is not less than V2, climber is in " fast state "；

Wherein, V1 is the criteria for classifying of " state at a slow speed " and " middling speed state ", and wherein V2 is " middling speed state " and " fast state " The criteria for classifying, V1 and V2 are corresponding predetermined threshold value.

7. the audio playing apparatus with horizontal displacement, its feature are changed based on height above sea level according to claim 4 or 5 or 6 It is：The audio is to input to obtain from other electronic equipments, or downloads acquisition from network, or is obtained by recording, or is passed through Audio Core Generator, which makes, to be obtained.

8. the audio playing apparatus with horizontal displacement, its feature are changed based on height above sea level according to claim 4 or 5 or 6 It is：If P1 represents that " precipitous state ", P2 represent that " gentle state ", P3 represent " level road state ", S1 represents " fast state ", S2 Represent that " middling speed state ", S3 are represented " state at a slow speed ", it is comprehensive after constitute climber state set P1S1, P1S2, P1S3, P2S1, P2S2, P2S3, P3S1, P3S2, P3S3 }, comprehensive state and the corresponding relation of audio types are one-to-one in set, or It is one-to-many, or many-one.