CN205352494U - Measuring device of liquid volume in container based on acceleration sensor - Google Patents
Measuring device of liquid volume in container based on acceleration sensor Download PDFInfo
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- CN205352494U CN205352494U CN201520839058.5U CN201520839058U CN205352494U CN 205352494 U CN205352494 U CN 205352494U CN 201520839058 U CN201520839058 U CN 201520839058U CN 205352494 U CN205352494 U CN 205352494U
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- container
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- acceleration transducer
- measurement apparatus
- attitude parameter
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Abstract
The utility model relates to a measuring device of liquid volume in container based on acceleration sensor. Measuring device includes acceleration sensor, acquisition unit, memory cell and processing unit, utilizes acceleration sensor to acquire different attitude parameter, and attitude parameter when reaching a water critical localisation through the container is stable utilizes the mapping relation of predetermined attitude parameter and the liquid volume or the water yield, finds the solution the volume that obtains the interior liquid of current container. The beneficial effects of the utility model are that the universality is extremely strong, low power dissipation, with low costs and structure require the low grade.
Description
Technical field
This utility model belongs to smart machine field, relates to the measurement apparatus of a kind of liquid in container volume, particularly relates to the measurement apparatus of a kind of liquid in container volume based on acceleration transducer.
Background technology
Water is as Source of life, it is that people survive requisite material, correct water way contributes to people and keeps fit, but before people only rely on and self feel to drink water, the amount of drinking water of oneself cannot be got information about, the enhancing realized along with health of people and the progress of technology, intelligence drinking equipment starts welcomed by the people, it can accurately measure the water yield that people absorb for a day, the amount of drinking water of self so that people can make rational planning for, the important component part that these drinking-water data will become in the big data of whole health again simultaneously.But in Intelligent water cup field, it will usually method goes to measure the water yield to utilize effusion meter, capacitance method, ultrasound wave, weigh etc., but these methods do not have universality, they can only under specific application scenarios normal operation.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides the measurement apparatus of the liquid in container volume of the low cost of a kind of simplicity, it is possible to obtains attitude and the kinestate of container based on acceleration transducer, extrapolates volume or the water yield of liquid in container.
The technical solution adopted in the utility model includes the measurement apparatus of a kind of liquid in container volume based on acceleration transducer, and described measurement apparatus includes: fix, with described container, the acceleration transducer being connected；Collecting unit, for gathering the data of described acceleration transducer and being converted to the container attitude parameter when heeling condition；Memory element, for storing the mapping relations data of attitude parameter when container lean enables liquid in container flow container opening and liquid in container volume, and for providing attitude parameter queue to store the container of the Real-time Collection attitude parameter when heeling condition；Processing unit, for according to real-time attitude parameter queuing data, it is determined that container lean enables liquid in container volume during liquid in container flow container opening.
As the further improvement of described scheme, wherein said acceleration transducer includes: 3D acceleration transducer, gravity sensor or gyroscope.
As the further improvement of described scheme, wherein said attitude parameter includes: the angle of the vertical direction of the vector acceleration of acceleration transducer and described container.
As the further improvement of described scheme, wherein said acceleration transducer is fixedly provided in the bottom of described container.Alternatively, wherein said acceleration transducer is fixedly provided in the sidepiece of described container.
Preferably, wherein said container is open-top receptacle.
Further improvement as described scheme, wherein said processing unit includes: in stable condition judge module, for judging that whether the standard deviation of the attitude parameter data in attitude parameter queue is less than default threshold value, if it is determine current container be tilted up to liquid in container can the state of flow container opening and record persistent period of this state, otherwise trigger described collecting unit and work on.
Further improvement as described scheme, wherein said processing unit includes: computing module, described computing module is when the described persistent period is in default threshold range, utilize the mapping relations data of attitude parameter and the liquid in container volume prestored, the meansigma methods of the attitude parameter in current pose parameter queue is calculated described liquid in container volume in real time.
As the further improvement of described scheme, described measurement apparatus also includes communication unit, and described communication unit transmits the data of described collecting unit by mode locally and/or remotely.
Preferably, described communication unit transmits the calculated liquid in container volume result of described processing unit also by mode locally and/or remotely.
The beneficial effects of the utility model are: the universality of measurement scheme is extremely strong, the container of can arrange in pairs or groups unlike material, function, shape and capacity, have stronger versatility；Having only to obtain cup body angle of inclination periodically by acceleration transducer be calculated, the power consumption of electrical equipment is extremely low；Need not rely on structure of container or the survey tool of complexity, and needed for realizing this programme, the cost of element is extremely low；Can integrating with container according to measurement apparatus of the present utility model, compact conformation, volume takies few；Easy to use according to container of the present utility model, and in natural use procedure, namely complete water yield detection, it is not necessary to operate especially.
Accompanying drawing explanation
Fig. 1 show according to vessel water measurement principle schematic of the present utility model；
Fig. 2 show the measurement apparatus block diagram according to embodiment of the present utility model；
Fig. 3 show the method flow diagram that the processing unit according to measurement apparatus of the present utility model is implemented；
Fig. 4 show at the mapping relations curve chart according to the container lean angle in embodiment of the present utility model Yu the container water yield.
Detailed description of the invention
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is carried out clear, complete description, to be completely understood by the purpose of this utility model, scheme and effect.It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Unless otherwise defined, all of technology used herein is identical with the implication that scientific terminology is generally understood that with those skilled in the art.Term used in the description herein is intended merely to description specific embodiment, rather than in order to limit this utility model.
It should be noted that this utility model is applicable to measure the liquid volume in the container that can be tilted up to water outlet critical localisation.Open-top receptacle (being such as mug) and non-open-top receptacle (being such as water bottle) as long as reaching described position, then applicable scheme of the present utility model.In following disclosed multiple embodiments, carry out scheme description by the embodiment of water tumbler, it is understood that it is not intended to this utility model is applicable to other known containers.
It is based on acceleration transducer according to scheme of the present utility model to implement.3D acceleration transducer, gravity sensor, gyroscope or other the known sensors that acceleration transducer can include.According in embodiment of the present utility model, it is preferable that adopt 3D acceleration transducer.
With reference to the water tumbler schematic diagram shown in Fig. 1, at the bottom of a 3D acceleration transducer being fixedly positioned to glass or with cup, for measuring attitude and the kinestate of cup in real time.When water yield difference, 3D acceleration transducer can measure different cup body angles of inclination, by the mapping relations at cup body angle of inclination and the water yield, can obtain the water yield in cup in the hope of solution.But, in what kind of situation, it is judged to that the action of drinking water of user has become the key point of this utility model scheme.One water tumbler can be keep flat on the table, it is also possible to is placed in foreign material with uncertain attitude；It is probably user to pick up cup and drink water, it is also possible to user is holding cup walking；User is likely to drink water, it is also possible to drink the even whole cup water of big half cup up without a break；User picks up cup and is probably to drink water, it is also possible in order to clean the situation such as cup.For solving problem above, identify the water yield in the action and water tumbler that user drinks water exactly, need a kind of measurement device of design to identify drinking-water action (when container lean reaches water outlet critical localisation and stably keep a period of time), then calculate the water yield according to water tumbler angle of inclination in this condition.
Fig. 2 show the measurement apparatus block diagram according to embodiment of the present utility model.Described measurement apparatus includes 3D acceleration transducer, collecting unit, memory element and processing unit, can also include communication unit alternatively.Collecting unit gathers the data of described acceleration transducer and is converted to the container angle parameter when heeling condition, for instance be the gravitational acceleration vector angle with the vertical direction of water tumbler of 3D acceleration transducer identification.Memory element tilts mapping tables of data or the mapping function of angle parameter when making to reach drinking-water attitude and the water tumbler now water yield for storing water tumbler.
Such as an existing internal diameter is 10 centimetres, and interior height is the uncovered water tumbler (mug) of 15 centimetres.The instruments such as cylinder amount can be utilized, different amounts of water is poured into the water tumbler needing to carry out demarcating, then at leisure water tumbler be tilted.Tilt to water in the cup face when just maintaining an equal level with rim of a cup, measured the angle of now water tumbler and gravity direction by the 3D acceleration transducer at the bottom of being arranged on glass or with cup.This angle then forms a pair data with the water yield now.From 0ml to all water yields of cup total capacity, all perform above operation, then can obtain the mapping relations curve at a cup body angle of inclination as shown in Figure 4 and the water yield.When requiring over the water yield in 3D acceleration transducer measuring cup, go out the current water yield by this mapping relations backstepping.It is below the mapping relations tables of data 1 at cup body angle of inclination and the water yield:
Table 1
In the present embodiment, memory element also provides for data queue, with store Real-time Collection drink water action time water tumbler angle of inclination data.In a specific embodiment, collecting unit and memory element can adopt integrated circuit, chip or low power dissipation electron components and parts to implement.Processing unit is connected with described collecting unit and memory element, processes data operation.Specifically, processing unit may be embodied as microprocessor, and whether the standard deviation of the data being configured that in the angle parameter queue judging Real-time Collection is less than default threshold value, if it is determine that water tumbler is in drink water operating state and record the persistent period of this state, otherwise trigger described collecting unit and work on；Judge when whether this persistent period is in a threshold range, if, then show that the action of drinking water now identified is credible, then utilize the angle parameter that prestores and the mapping relations data of the water yield in container, the meansigma methods of the multiple angle-datas in current angular parameter queue is calculated in real time the water yield of described water tumbler.Specifically, described step can be described by the algorithm steps shown in Fig. 3:
It is θ that S101 defines 3D vector acceleration with water tumbler vertical direction angle；
S102 definition is for storing the queue S{N} that length is N of θ；
It is Avg (S{N}) that S103 defines the mean function of S{N}；
The S104 definition water yield is Vol (θ) about the function of tilt angle theta；
When S105 definition is drunk water, θ is not less than θ0；
When S106 defines θ value stabilization, S{N} standard deviation is less than Std0；
It is Std (t) that S107 defines the standard deviation of t S{N} queue；
S108 defines StableTime stabilization time of θ, is initialized as 0；
The S109 definition sampling period is T (x) about the function of Std (t)；
S110 definition drinks water the time between TimeMin and TimeMax；
S201 reads θ value, is inserted into queue S{N}；
S202 judges that whether queue S{N} is full, if less than, perform next step, if full, jump to step S301；
S203 waits sampling period T (Std (t))；
S301 judges Std (t) < Std0Whether set up, be, perform next step, otherwise jump to step S303；
S302 updates StableTime=StableTime+T (Std (t))；
S303 judges whether TimeMin < StableTime < TimeMax sets up, and is, performs next step, otherwise jumps to step S306；
S304 judges Avg (S{N}) < θ0Whether set up, be, perform next step, otherwise jump to step S306；
It is Vol (Avg (S{N})) that S305 exports the water yield；
S306 resets StableTime=0, returns to step S203.
Above-mentioned steps should be noted that following some:
1. the sampling period is a function about queue S{N}, i.e. the stability of the attitude of the cup for the previous period that the size in sampling period depends on and kinestate.When needing to make cup more unstable when building this function, the sampling period more little (being not zero), to adapt to the Rapid Variable Design of cup attitude and kinestate；And when cup is stablized, the sampling period suitably increases, to reduce power consumption；
2.S{N} is the queue in software algorithm concept, when it is not expired, has only to be placed on new element the end of queue when inserting a new element.When it is full, needing first to be removed by the first of queue element when inserting a new element, all the other all elements move forward one, and then new element is placed on the end of queue；
3. when building function T (x) in sampling period, it should make once to drink water in the time, by queue S{N} at least update all one time, to ensure the reliability of last water yield data Vol (Avg (S{N}))；
4. the TimeMin in figure is the time of minimum needs of once drinking water, it is preferable that be set to the empirical value according to actual measurement gained, and TimeMax is the time finishing off the required cost of whole cup water continuously, to different cups, TimeMax value difference.The capacity of cup is more big, or rim of a cup is more little, then the value of TimeMax then should correspondingly be set to bigger.
Also with the water tumbler of above-mentioned size, in a calculated examples, the mapping relations according to the cup body angle of inclination demarcated with the water yield, in actual measure of water process, obtain following data:
Table 2
| Actual amount of water (ml) | Measurement result (ml) | Error (ml) |
| 100 | 93 | -7 |
| 200 | 206 | 6 |
| 300 | 308 | 8 |
| 400 | 412 | 12 |
| 500 | 499 | -1 |
| 600 | 603 | 3 |
| 700 | 728 | 28 |
| 800 | 831 | 31 |
| 900 | 923 | 23 |
| 1000 | 1017 | 17 |
Can show that from upper table the present embodiment achieves the measurement water yield within the scope of reasonable error, satisfactory for result.
In certain embodiments, memory element, collecting unit and/or processing unit can be incorporated into the smart machine of external container, then pass through communication unit and process data transmission.In a specific embodiment, communication unit may be embodied as bluetooth, Wi-Fi or other communication module.Smart machine can pass through this delivering path and connect container, obtains the angle of inclination data of container, the processor of this smart machine then can be utilized to perform above-mentioned algorithm steps, calculate and obtain liquid in container volume.
The above, simply preferred embodiment of the present utility model, this utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection domain of the present utility model.In protection domain of the present utility model, its technical scheme and/or embodiment can have various different modifications and variations.
Claims (10)
1. the measurement apparatus based on the liquid in container volume of acceleration transducer, it is characterised in that described measurement apparatus includes:
The acceleration transducer being connected is fixed with described container；
Collecting unit, for gathering the data of described acceleration transducer and being converted to the container attitude parameter when heeling condition；
Memory element, for storing the mapping relations data of attitude parameter when container lean enables liquid in container flow container opening and liquid in container volume, and for providing attitude parameter queue to store the container of the Real-time Collection attitude parameter when heeling condition；
Processing unit, for according to real-time attitude parameter queuing data, it is determined that container lean enables liquid in container volume during liquid in container flow container opening.
2. the measurement apparatus of the liquid in container volume based on acceleration transducer according to claim 1, wherein said acceleration transducer includes: 3D acceleration transducer, gravity sensor or gyroscope.
3. the measurement apparatus of the liquid in container volume based on acceleration transducer according to claim 1, wherein said attitude parameter includes: the angle of the vertical direction of the vector acceleration of acceleration transducer and described container.
4. the measurement apparatus of the liquid in container volume based on acceleration transducer according to claim 1, wherein said acceleration transducer is fixedly provided in the bottom of described container.
5. the measurement apparatus of the liquid in container volume based on acceleration transducer according to claim 1, wherein said acceleration transducer is fixedly provided in the sidepiece of described container.
6. the measurement apparatus of the liquid in container volume based on acceleration transducer according to claim 1, wherein said container is open-top receptacle.
7. the measurement apparatus of the liquid in container volume based on acceleration transducer according to claim 1, wherein said processing unit includes:
In stable condition judge module, for judging that whether the standard deviation of the attitude parameter data in attitude parameter queue is less than default threshold value, if it is determine current container be tilted up to liquid in container can the state of flow container opening and record persistent period of this state, otherwise trigger described collecting unit and work on.
8. the measurement apparatus of the liquid in container volume based on acceleration transducer according to claim 7, wherein said processing unit includes:
Computing module, described computing module is when the described persistent period is in default threshold range, utilize the mapping relations data of attitude parameter and the liquid in container volume prestored, the meansigma methods of the attitude parameter in current pose parameter queue is calculated described liquid in container volume in real time.
9. the measurement apparatus of the liquid in container volume based on acceleration transducer according to claim 1, it is characterised in that described measurement apparatus also includes communication unit, and described communication unit transmits the data of described collecting unit by mode locally and/or remotely.
10. the measurement apparatus of the liquid in container volume based on acceleration transducer according to claim 9, it is characterised in that described communication unit transmits the calculated liquid in container volume result of described processing unit also by mode locally and/or remotely.
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| CN201520839058.5U CN205352494U (en) | 2015-10-27 | 2015-10-27 | Measuring device of liquid volume in container based on acceleration sensor |
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| CN201520839058.5U CN205352494U (en) | 2015-10-27 | 2015-10-27 | Measuring device of liquid volume in container based on acceleration sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107462294A (en) * | 2017-08-10 | 2017-12-12 | 广州机智云物联网科技有限公司 | A kind of vessel liquid topples over measuring method and system |
| CN109709831A (en) * | 2019-01-10 | 2019-05-03 | 罗婧怡 | A method of the daily amount of drinking water of user is determined based on Intelligent water cup |
| CN110520019A (en) * | 2017-03-29 | 2019-11-29 | 普拉塔普有限责任公司 | For measuring liquid-consumed device and method |
| CN110753749A (en) * | 2017-03-22 | 2020-02-04 | 自由感有限公司 | Sensor device for tracking position and process parameters in a container |
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- 2015-10-27 CN CN201520839058.5U patent/CN205352494U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111249550A (en) * | 2016-09-22 | 2020-06-09 | 美德乐控股公司 | Breast shield unit |
| CN111249550B (en) * | 2016-09-22 | 2022-09-16 | 美德乐控股公司 | Breast shield unit |
| US11957818B2 (en) | 2016-09-22 | 2024-04-16 | Medela Holding Ag | Breast shield unit |
| CN110753749A (en) * | 2017-03-22 | 2020-02-04 | 自由感有限公司 | Sensor device for tracking position and process parameters in a container |
| CN110520019A (en) * | 2017-03-29 | 2019-11-29 | 普拉塔普有限责任公司 | For measuring liquid-consumed device and method |
| CN107462294A (en) * | 2017-08-10 | 2017-12-12 | 广州机智云物联网科技有限公司 | A kind of vessel liquid topples over measuring method and system |
| CN107462294B (en) * | 2017-08-10 | 2019-11-01 | 广州机智云物联网科技有限公司 | A kind of vessel liquid topples over measuring method and system |
| CN109709831A (en) * | 2019-01-10 | 2019-05-03 | 罗婧怡 | A method of the daily amount of drinking water of user is determined based on Intelligent water cup |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20211027 |
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