CN110440893A - Weight-calibration method, apparatus and weighing-appliance - Google Patents
Weight-calibration method, apparatus and weighing-appliance Download PDFInfo
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- CN110440893A CN110440893A CN201910729164.0A CN201910729164A CN110440893A CN 110440893 A CN110440893 A CN 110440893A CN 201910729164 A CN201910729164 A CN 201910729164A CN 110440893 A CN110440893 A CN 110440893A
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Abstract
The present invention provides a kind of weight-calibration method, apparatus and weighing-appliances, are related to metrical instrument technical field, this method comprises: obtaining this sense weight of specified object and the weight change value of specified object；The first weight threshold is determined based on specified reference factor；Based on weight change value and the first weight threshold, this sense weight of specified object is calibrated.The present invention has preferable universality, and can effectively improve the accuracy of calibration result.
Description
Technical field
The present invention relates to metrical instrument technical fields, more particularly, to a kind of weight-calibration method, apparatus and weighing-appliance.
Background technique
The weight detection equipments such as electronic scale or sensor during use, are easy to happen asking for zero drift
Topic, so that weighing results are inaccurate.Therefore, it is necessary to calibrate in use to weight detection equipment.
The mode calibrated at present to weight detection equipment is usually: before each sense weight by reset or
The weight of reference standard reference material calibrates zero point；Or after sense weight, detected by built-in processing routine
Whether zero point occurs drift, and weight result or prompt sense weight again are corrected in the case where drift occurs.However, above-mentioned
Calibrating mode is only applicable to the conventional scenario only calibrated before and after cargo weighing, and need to persistently be placed in electronics for cargo
On scale and continue detection special screne can not then be applicable in, universality is not high；And there is also calibration results for above-mentioned calibrating mode
The poor problem of accuracy.
Summary of the invention
The purpose of the present invention is to provide weight-calibration method, apparatus and weighing-appliance, there is preferable universality, and can
To effectively improve the accuracy of calibration result.
A kind of weight-calibration method provided by the invention, which comprises obtain this sense weight of specified object
And the weight change value of the specified object；The first weight threshold is determined based on specified reference factor；Become based on the weight
Change value and first weight threshold, calibrate this sense weight of the specified object.
Further, the specified reference factor include temperature factor, humidity factor, acceleration of gravity factor, the time because
At least one of element and load capacity factor；Described the step of first weight threshold is determined based on specified reference factor, comprising:
Obtain the parameter value of specified reference factor；Value obtains the corresponding null offset threshold value of each specified reference factor based on the parameter；
The first weight threshold is determined according to each null offset threshold value.
Further, if the specified reference factor is the temperature factor, the parameter value is temperature gap；It is described
Value obtains the step of each specified reference factor corresponding null offset threshold value based on the parameter, comprising: according to temperature parameter value
Null offset threshold value corresponding with the null offset relationship of the temperature factor calculating temperature factor；Wherein, the temperature
The null offset relationship of factor includes:
ΔWc=λ F.S/ Δ T
Wherein, Δ WcFor the corresponding null offset threshold value of the temperature factor, F.S is full scale, and λ is percentage error,
Δ T is the temperature gap.
Further, if the specified reference factor is the acceleration of gravity factor, the parameter value is gravity ginseng
Numerical value；The value based on the parameter obtains the step of each specified reference factor corresponding null offset threshold value, comprising: according to institute
The null offset relationship for stating weight parameter value and the acceleration of gravity factor calculates the acceleration of gravity factor corresponding zero
Point drift threshold value；Wherein, the weight parameter value includes gravity acceleration value and weight value；Wherein, the acceleration of gravity because
Element null offset relationship include:
Wherein, Δ WgFor the corresponding null offset threshold value of the acceleration of gravity factor, g1It is weight detection equipment in position
Gravity acceleration value before movement, W1To be g when gravity acceleration value1Shi Suoshu specifies the weight value of object, and Δ g is described heavy
Measure acceleration of gravity difference of the detection device before and after position is mobile；Wherein, the weight detection equipment is to detect described specify
The equipment of the weight of object.
Further, if the specified reference factor is the time factor, the parameter value is time difference；It is described
Value obtains the step of each specified reference factor corresponding null offset threshold value based on the parameter, comprising: according to the time difference
It is worth null offset threshold value corresponding with the null offset relationship of the time factor calculating time factor；Wherein, when described
Between the null offset relationship of factor include:
ΔWw=κ F.S/ Δ t
Wherein, Δ WwFor the corresponding null offset threshold value of the time factor, F.S is full scale, and κ is percentage error,
Δ t is the time difference.
Further, if the specified reference factor is the load capacity factor, the parameter value is weight detecting
The range maximum value of equipment；Wherein, the weight detection equipment is the equipment for detecting the weight of the specified object；It is described to be based on
The parameter value obtains the step of each specified reference factor corresponding null offset threshold value, comprising: from preset threshold value relation table
Middle lookup null offset threshold value corresponding with the associated load capacity factor of the range maximum value；Wherein, described default
Threshold value relation table in record have each range maximum value null offset threshold value corresponding with the load capacity factor association pass
System.
Further, described this sense weight for obtaining specified object and the weight change value of the specified object
Step, comprising: obtain the history sense weight of the specified object；The history sense weight is included in this detection weight of acquisition
At least one the history sense weight collected before the execution of the step of amount according to prefixed time interval；Based between adjacent time
Every history sense weight and this described sense weight determine weight change value of the specified object in each time interval.
Further, described to be based on the weight change value and first weight threshold, to the sheet of the specified object
The step of secondary sense weight is calibrated, comprising: the corresponding weight of the time interval for calculating continuous predetermined number becomes
The cumulative weight changing value of change value；When the cumulative weight changing value is less than first weight threshold, based on described specified
The last time sense weight of object calibrates this sense weight of the specified object.
Further, described to be based on the weight change value and first weight threshold, to the sheet of the specified object
The step of secondary sense weight is calibrated, comprising: when the weight change value is less than first weight threshold, by the finger
The last time sense weight for determining object is determined as this sense weight of the specified object.
Further, the method also includes: according to this sense weight of the specified object after calibration and default
The generation of the second weight threshold replenish prompting message.
Weight-calibration device provided by the invention, described device includes: that weight parameter obtains module, for obtaining specified pair
The weight change value of this sense weight of elephant and the specified object；Weight threshold determining module, for based on specified ginseng
The factor of examining determines the first weight threshold；Weight-calibration module, for being based on the weight change value and first weight threshold,
This sense weight of the specified object is calibrated.
A kind of weighing-appliance provided by the invention, comprising: processor and storage device；Meter is stored on the storage device
Calculation machine program, the computer program execute as above described in any item methods when being run by the processor.
A kind of computer readable storage medium provided by the invention is stored with calculating on the computer readable storage medium
The step of machine program, the computer program executes method described in any of the above embodiments when being run by processor.
The embodiment of the invention provides a kind of weight-calibration method, apparatus and weighing-appliance, this method obtains specified first
This sense weight of object and the weight change value of specified object, and the first weight threshold is determined based on specified reference factor
Value；It is then based on weight change value and the first weight threshold, this sense weight of specified object is calibrated.Relative to existing
There is the mode for needing to be calibrated in technology before or after sense weight, aforesaid way provided by the present embodiment is by directly obtaining
Fetching determines this sense weight and weight change value of object, can effectively avoid in a calibration process forward and backward to detection equal dynamic
Make the limitation of node, not only can be adapted for conventional calibration scene, can be applicable to such as when cargo need to be persistently placed in
On electronic scale and continue the special screne detected, there is preferable universality；And based at least one in specified reference factor
Item factor determines the mode of the first weight threshold, and the scientific rationality and accuracy for determining the first weight threshold can be improved, with
Weight change value is compared on the basis of this, can effectively improve the accuracy of weight-calibration.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is weight-calibration method flow diagram provided in an embodiment of the present invention；
Fig. 2 is the signal of the sense weight provided in an embodiment of the present invention shown based on time interval and weight change value
Figure；
Fig. 3 is the structural block diagram of weight-calibration device provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of weighing-appliance provided in an embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Inventor has found that weight detection equipment is since the variation of ambient temperature and humidity, surrounding electromagnetism are dry in the course of the research
It the reasons such as disturbs, leads to the problem of being easy to happen zero drift, so that weighing results are inaccurate.And it is existing to weight detection equipment
The mode calibrated can not adapt to some actual use scenes, and there is a problem of that calibration result accuracy is poor.Based on this,
A kind of weight-calibration method, apparatus provided in an embodiment of the present invention and weighing-appliance, can well adapt to various actual uses
Scene effectively improves the accuracy of calibration.The embodiment of the present invention can be applied to the weight detectings such as electronic scale or sensor and set
It is standby, and apply also in a variety of places such as supermarket, intelligent storage, farm or raising pets field, for detecting inventory, control
Delivery amount processed and prompting replenish.
For convenient for understanding the present embodiment, first to a kind of weight-calibration method disclosed in the embodiment of the present invention into
Row is discussed in detail.
Embodiment one:
Referring to weight-calibration method flow diagram as shown in Figure 1, this method may include following steps:
Step S102 obtains this sense weight of specified object and the weight change value of specified object.This specified pair
It also may include the living bodies such as humans and animals as may include coffee bean and other items.Weight change value can be this sense weight
With the difference of last time sense weight.
Step S104 determines the first weight threshold based on specified reference factor.
First weight threshold is a reference value for being calibrated to sense weight, with weight detection equipment itself
Measurement accuracy, range and temperature factor, time factor are related with the reference factor in the multinomial external world such as humidity factor.Its
In, above-mentioned weight detection equipment is the equipment for detecting the weight of specified object, such as electronic scale and weight sensor.In the present embodiment
In, both the first weight threshold can be determined based at least one specified reference factor, can also made with weight detection equipment
With the variation of environment, reference factor is specified based at least one to dynamically adjust the first weight threshold.It in this way can be more scientific, quasi-
It really determines the first weight threshold, is conducive to the accuracy of lifting weight calibration.
Step S106 is based on weight change value and the first weight threshold, carries out school to this sense weight of specified object
It is quasi-.
In the present embodiment, when weight change value is less than predetermined first weight threshold, indicate that weight detecting is set
Drift occurs for standby zero point, can calibrate to this sense weight of specified object.
Above-mentioned weight-calibration method provided in an embodiment of the present invention, can obtain this sense weight of specified object first
And the weight change value of specified object, and the first weight threshold is determined based on specified reference factor；It is then based on weight change
Value and the first weight threshold, calibrate this sense weight of specified object.It needs detecting in compared with the existing technology
The mode calibrated before or after weight, aforesaid way provided by the present embodiment is by directly acquiring this inspection of specified object
Measured weight and weight change value can effectively avoid not only may be used to the forward and backward limitation for waiting movement node is detected in a calibration process
To be suitable for conventional calibration scene, can be applicable to such as when cargo need to be persistently placed on electronic scale and continue detection
Special screne has preferable universality；And the first weight threshold is determined based at least one factor in specified reference factor
The scientific rationality and accuracy for determining the first weight threshold can be improved in the mode of value, to become weight/power ratio as benchmark
Change value can effectively improve the accuracy of weight-calibration.
It should be noted that weight-calibration method provided in an embodiment of the present invention is not with Fig. 1 and above-described tool
Body sequence is limitation.Such as step S102 and step S104 can be exchanged with each other according to actual needs.
Referring to the sense weight based on time interval as shown in Figure 2, obtain specified object this sense weight and
The step of weight change value of specified object, it may include steps of (1) and (2):
(1) the history sense weight of specified object is obtained.History sense weight includes in the step for obtaining this sense weight
At least one the history sense weight collected before rapid execution according to prefixed time interval.
Specifically, history sense weight, which is included in, obtains this sense weight Wn+1Before according to prefixed time interval (such as 1
Minute) detect and record at least one sense weight of specified object.In practical applications, a history detection can only be obtained
Weight, history sense weight acquired at this time are and this sense weight Wn+1Adjacent last time sense weight is Wn；Only obtain
It is shorter the time required to one history sense weight, facilitate in subsequent being calibrated to this sense weight faster.In reality
In the application of border, two or more history sense weight can also be obtained, acquired history sense weight is this detection at this time
Weight Wn+1Continuous several sense weights before, such as the W in Fig. 21、W2、W3... and Wn.Weight is detected based on more than two history
Amount, can contribute to it is subsequent this sense weight is calibrated when improve calibration accuracy.
(2) determine specified object between each time based on the history sense weight of adjacent time inter and this sense weight
Every interior weight change value.
Specifically, calculating the weight change value in corresponding time interval according to adjacent sense weight twice.Based on step
(1) acquired history sense weight in, the weight change value that the present embodiment is calculated can be one, i.e. Δ W=| Wn+1-
Wn|, or two or more, such as Δ W1=| W2-W1|, Δ W2=| W3-W2|……ΔWn=| Wn+1-Wn|。
Based on the weight change value that aforesaid way is calculated, when using a weight change value to specified in practical application
When this sense weight of object is calibrated, be referred to following content: when weight change value (i.e. are as follows: Δ W=| Wn+1-Wn
|) it is less than predetermined first weight threshold W0When, indicate that drift occurs for weight detection equipment zero point, it can be by specified object
Last time sense weight WnIt is determined as this sense weight of specified object.
When weight change value Δ W is 0, indicate that drift does not occur for zero point in the time interval of current detection, specified pair
This sense weight of elephant does not need to be calibrated.When weight change value Δ W is more than or equal to the first weight threshold W0When, indicate goods
Object occurs to increase (such as replenishing) or reduce, this sense weight of specified object does not need to be calibrated.
In order to avoid improving the accuracy of calibration result, the present embodiment may be used also due to a weight detecting bring error
With based on the corresponding weight change value of continuous several time intervals determine the need for this sense weight of specified object into
Row calibration, namely when in practical application use two or more weight change value school is carried out to this sense weight of specified object
On time, following steps 1 are referred to step 3:
Step 1, the cumulative weight changing value of the corresponding weight change value of time interval of continuous predetermined number is calculated.
Specifically, obtaining the corresponding weight change value of continuous n time interval first, it is respectively as follows:
ΔW1=| W2-W1|, Δ W2=| W3-W2| ... and Δ Wn=| Wn+1-Wn|；
Then it adds up to above-mentioned n weight change value, obtains cumulative weight changing value:
Δ W'=Δ W1+ΔW2+……+ΔWn。
Step 2, when cumulative weight changing value is less than predetermined first weight threshold (namely Δ W'< W0) when, it is based on
The last time sense weight of specified object calibrates this sense weight of specified object.
If cumulative weight changing value Δ W' is greater than or equal to the first weight threshold W0, indicate in this multiple time interval
Cargo increases or decreases, and specifies this sense weight W of objectn+1It does not need to be calibrated.If cumulative weight changing value
Δ W' is less than the first weight threshold W0, indicate that drift occurs for weight detection equipment zero point, the last time of specified object can be detected
Weight WnIt is determined as this sense weight of specified object.
Estimate what breath obtained in view of existing first weight threshold is normally based on empirical value, this first weight threshold of determination
The mode scientific rationality and accuracy of value are poor, and being difficult accurately to distinguish on this basis causes weight detecting result to go out
The reason of existing difference is zero drift or due to weight change, to can not accurately calibrate to sense weight.It is based on
This, the present embodiment provide it is a kind of determine the possible embodiment of the first weight threshold by comprehensively considering specified reference factor,
To improve the scientific rationality and accuracy of the first weight threshold, to help to improve the accuracy of weight-calibration result；Its
In, specified reference factor can include but is not limited to temperature factor, humidity factor, acceleration of gravity factor, time factor and hold
At least one of loading capacity factor, so as to determine the first weight threshold to (3) with reference to following steps (1):
(1) parameter value of specified reference factor is obtained.
The acquisition modes of the parameter value of above-mentioned specified reference factor can be by reading local historical data acquisition, also
It can be and remotely obtained by accessing Cloud Server.Specifically for example: by temperature sensor according to preset interval (such as
5s) collecting temperature value, and obtain the temperature gap in adjacent temperature gap or preset time period twice；By the multiple of acquisition
Temperature value and/or temperature gap are stored in local or cloud server.When determining the first weight threshold, by local or
Cloud server obtains the parameter value of the specified reference factor such as pre-stored temperature value and/or temperature gap.
(2) the corresponding null offset threshold value of each specified reference factor is obtained based on parameter value.
It for ease of understanding, can be illustratively to the corresponding null offset threshold value expansion explanation of above-mentioned each specified reference factor:
Example one: if specified reference factor is temperature factor, parameter value is temperature gap, can be according to temperature parameter value
Null offset threshold value corresponding with the null offset relationship of temperature factor calculating temperature factor；Wherein, the zero point drift of temperature factor
Shifting relationship includes:
ΔWc=λ F.S/ Δ T
Wherein, Δ Wc is the corresponding null offset threshold value of temperature factor, and F.S is full scale, and λ is percentage error, and Δ T is
Temperature gap, and the temperature difference can be regarded as variation after temperature and variation before temperature difference, the difference can for positive value or
Negative value.The null offset relationship of the temperature factor can be in practical applications specifically: Δ Wc=0.3F.S/10 DEG C, indicate temperature
Every 10 DEG C of variation is spent, null offset threshold value is likely to occur the accuracy value size of the 0.3% of full scale.
Example two: if specified reference factor be such as acceleration of gravity factor, parameter value can be include acceleration of gravity
Value, the weight parameter value of acceleration of gravity difference and weight value.The wherein acquisition of gravity acceleration value and acceleration of gravity difference
Mode such as can be with are as follows: when the position of the weight detection equipment for detecting specified object changes, can pass through GPS
(Global Positioning System, global positioning system) or network base station position weight detection equipment, obtain weight
The gravity acceleration value of detection device present position is obtained by comparing the gravity acceleration value of change in location correspondence
To acceleration of gravity difference.
Accelerate it is possible thereby to calculate gravity according to the null offset relationship of above-mentioned weight parameter value and acceleration of gravity factor
The corresponding null offset threshold value of degree factor；Wherein, the null offset relationship of acceleration of gravity factor includes:
Wherein, Δ WgFor the corresponding null offset threshold value of acceleration of gravity factor, g1It is mobile in position for weight detection equipment
Preceding gravity acceleration value, W1To be g when gravity acceleration value1The weight value of Shi Zhiding object, Δ g are that weight detection equipment exists
The acceleration of gravity difference of the mobile front and back in position, and the acceleration of gravity difference can be regarded as the gravity acceleration value after variation with
The difference of gravity acceleration value before variation, the difference can be positive value or negative value.
Example three: if specified reference factor is time factor, parameter value is time difference, can according to time difference and
The null offset relationship of time factor calculates the corresponding null offset threshold value of time factor；Wherein, the null offset of time factor
Relationship includes:
ΔWw=κ F.S/ Δ t
Wherein, Δ WwFor the corresponding null offset threshold value of time factor, F.S is full scale, and κ is percentage error, and Δ t is
Time difference.The null offset relationship of the time factor can be specially Δ W in practical applicationsw=0.1F.S/5min is indicated
Every 5 minutes null offset threshold values are likely to occur the accuracy value size of the 0.1% of full scale.
Example four: if specified reference factor is load capacity factor, parameter value is that the range of weight detection equipment is maximum
Value, the maximum capacity amount of the range maximum value namely weight detection equipment；It can be searched from preset threshold value relation table and amount
The corresponding null offset threshold value of the associated load capacity factor of journey maximum value；Wherein, as shown in table 1, preset threshold value relation table
It is middle to record the incidence relation for having each range maximum value null offset threshold value corresponding with load capacity factor.
Table 1
| Range maximum value | Null offset threshold value |
| 1 kilogram | 0.2 gram |
| 2 kilograms | 0.5 gram |
| 5 kilograms | 1 gram |
| 10 kilograms | 5 grams |
| 150 kilograms | 100 grams |
(3) the first weight threshold is determined according to each null offset threshold value.
It, can be by the corresponding null offset threshold value of each specified reference factor when multiple specified reference factors occur simultaneously
Accumulation threshold is as the first weight threshold W0, such as: W0=Δ Wc+ΔWg+ΔWw.Wherein, it is contemplated that temperature gap and gravity add
Speed difference can be positive value or negative value, therefore, the corresponding null offset threshold value Δ W of temperature factorcWith acceleration of gravity factor
Corresponding null offset threshold value Δ WgAlso all can be on the occasion of or negative value.
The present embodiment makes the first weight obtained by comprehensively considering every specified corresponding null offset threshold value of reference factor
It is more scientific, reasonable and accurate to measure threshold value, to help to improve the accuracy of weight-calibration result.
In addition, weight-calibration method provided by the present embodiment can also include: the sheet according to the specified object after calibration
Secondary sense weight and preset second weight threshold generate the prompting message that replenishes.
Preset second weight threshold can be obtained based on cargo quantity in stock.In conjunction in aforesaid way, according to it is default when
Between interval weight detecting is carried out to specified object, this sense weight of specified object after calibration is lower than preset second weight
When measuring threshold value, indicate that less than the weight that replenishes is preset, the prompting message that replenishes can be generated, the prompting message that replenishes in inventory at this time
It can be pushed to user in the form of short message etc., to facilitate user to replenish kinds of goods in time.
To sum up, weight-calibration method provided by above-described embodiment, by this detection weight for directly acquiring specified object
Amount and weight change value can effectively avoid not only fitting to the forward and backward limitation for waiting movement node is detected in a calibration process
For conventional calibration scene, can be applicable to such as when cargo need to be persistently placed on electronic scale and continue the special of detection
Scene has preferable universality；And the first weight threshold is determined based at least one factor in specified reference factor
Mode can be improved the scientific rationality and accuracy for determining the first weight threshold, weight change value compared as benchmark,
It can effectively improve the accuracy of weight-calibration.
Embodiment two:
Provided weight-calibration method based on the above embodiment present embodiments provides a kind of weight-calibration device, ginseng
According to the structural block diagram of weight-calibration device as shown in Figure 3, comprising:
Weight parameter obtains module 302, for obtaining this sense weight of specified object and the weight of specified object
Changing value.
Weight threshold determining module 304, for determining the first weight threshold based on specified reference factor.
Weight-calibration module 306, this detection for being based on weight change value and the first weight threshold, to specified object
Weight is calibrated.
Weight-calibration device provided in an embodiment of the present invention obtains this sense weight of specified object first and specifies
The weight change value of object, and the first weight threshold is determined based on specified reference factor；It is then based on weight change value and first
Weight threshold calibrates this sense weight of specified object.Needed in compared with the existing technology before sense weight or
The mode calibrated afterwards, aforesaid way provided by the present embodiment by directly acquire specified object this sense weight and
Weight change value can effectively avoid not only can be adapted for the forward and backward limitation for waiting movement node is detected in a calibration process
Conventional calibration scene can be applicable to such as when cargo need to be persistently placed on electronic scale and continue the particular field detected
Scape has preferable universality；And the side of the first weight threshold is determined based at least one factor in specified reference factor
Formula can be improved the scientific rationality and accuracy for determining the first weight threshold, weight change value compared as benchmark, can
To effectively improve the accuracy of weight-calibration.
In some embodiments, specified reference factor include temperature factor, humidity factor, acceleration of gravity factor, when
Between at least one of factor and load capacity factor；Above-mentioned weight threshold determining module 304, for obtaining specified reference factor
Parameter value；The corresponding null offset threshold value of each specified reference factor is obtained based on parameter value；It is true according to each null offset threshold value
Fixed first weight threshold.
In some embodiments, if specified reference factor is temperature factor, parameter value is temperature gap；Above-mentioned weight
Threshold determination module 304 is specifically used for: calculating temperature factor pair according to the null offset relationship of temperature parameter value and temperature factor
The null offset threshold value answered；Wherein, the null offset relationship of temperature factor includes:
ΔWc=λ F.S/ Δ T
Wherein, Δ WcFor the corresponding null offset threshold value of temperature factor, F.S is full scale, and λ is percentage error, and Δ T is
Temperature gap.
In some embodiments, if specified reference factor is acceleration of gravity factor, parameter value is weight parameter value；
Above-mentioned weight threshold determining module 304 is specifically used for: according to the null offset relationship of weight parameter value and acceleration of gravity factor
Calculate the corresponding null offset threshold value of acceleration of gravity factor；Wherein, weight parameter value includes gravity acceleration value and weight value；
Wherein, the null offset relationship of acceleration of gravity factor includes:
Wherein, Δ WgFor the corresponding null offset threshold value of acceleration of gravity factor, g1It is mobile in position for weight detection equipment
Preceding gravity acceleration value, W1To be g when gravity acceleration value1The weight value of Shi Zhiding object, Δ g are that weight detection equipment exists
The acceleration of gravity difference of the mobile front and back in position；Wherein, weight detection equipment is the equipment for detecting the weight of specified object.
In some embodiments, if specified reference factor is time factor, parameter value is time difference；Above-mentioned weight
Threshold determination module 304 is specifically used for: it is corresponding to calculate time factor according to the null offset relationship of time difference and time factor
Null offset threshold value；Wherein, the null offset relationship of time factor includes:
ΔWw=κ F.S/ Δ t
Wherein, Δ WwFor the corresponding null offset threshold value of time factor, F.S is full scale, and κ is percentage error, and Δ t is
Time difference.
In some embodiments, if specified reference factor is load capacity factor, parameter value is weight detection equipment
Range maximum value；Wherein, weight detection equipment is the equipment for detecting the weight of specified object；Above-mentioned weight threshold determining module
304 are specifically used for: zero point corresponding with the associated load capacity factor of range maximum value is searched from preset threshold value relation table
Drift threshold；Wherein, record has the zero point drift corresponding with load capacity factor of each range maximum value in preset threshold value relation table
Move the incidence relation of threshold value.
In some embodiments, above-mentioned weight parameter obtains module 302 and is specifically used for: obtaining the history inspection of specified object
Measured weight；History sense weight acquires before being included in the step of obtaining this sense weight execution according to prefixed time interval
At least one the history sense weight arrived；History sense weight and this sense weight based on adjacent time inter determine specified
Weight change value of the object in each time interval.
In some embodiments, above-mentioned weight-calibration module 306 is specifically used for: between the time for calculating continuous predetermined number
Every the cumulative weight changing value of corresponding weight change value；When cumulative weight changing value is less than the first weight threshold, based on finger
The last time sense weight for determining object calibrates this sense weight of specified object.
In some embodiments, above-mentioned weight-calibration module 306 is specifically used for: when weight change value is less than the first weight
When threshold value, the last time sense weight of specified object is determined as to this sense weight of specified object.
In some embodiments, above-mentioned weight-calibration device further includes reminding module (not shown), is used for basis
This sense weight of specified object after calibration and preset second weight threshold generate the prompting message that replenishes.
Based on previous embodiment, the embodiment of the invention provides a kind of weighing-appliance, including processor and memory, storages
Device is stored with the machine-executable instruction that can be executed by processor, and it is above-mentioned heavy to realize that processor executes machine-executable instruction
The step of measuring calibration method.
It further, further include bus 403 and communication interface referring to the structural schematic diagram of weighing-appliance as shown in Figure 4
404, processor 402, communication interface 404 and memory 401 are connected by bus 403.
Wherein, memory 401 may include high-speed random access memory (RAM, Random Access Memory),
It may further include non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.By extremely
A few communication interface 404 (can be wired or wireless) is realized logical between the system network element and at least one other network element
Letter connection, can be used internet, wide area network, local network, Metropolitan Area Network (MAN) etc..Bus 403 can be isa bus, pci bus or
Eisa bus etc..Bus 403 can be divided into address bus, data/address bus, control bus etc..For convenient for indicating, only with one in Fig. 4
A four-headed arrow indicates, it is not intended that an only bus 403 or a type of bus 403.
Processor 402 may be a kind of IC chip, the processing capacity with signal.It is above-mentioned during realization
Each step of method can be completed by the integrated logic circuit of the hardware in processor 402 or the instruction of software form.On
The processor 402 stated can be general processor, including central processing unit (Central Processing Unit, abbreviation
CPU), network processing unit (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (Digital
Signal Processing, abbreviation DSP), specific integrated circuit (Application Specific Integrated
Circuit, abbreviation ASIC), ready-made programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or
Person other programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute sheet
Disclosed each method, step and logic diagram in inventive embodiments.General processor can be microprocessor or the processing
Device is also possible to any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in
Hardware decoding processor executes completion, or in decoding processor hardware and software module combination execute completion.Software mould
Block can be located at random access memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable storage
In the storage medium of this fields such as device, register maturation.The storage medium is located at memory 401, and processor 402 reads memory
Information in 401, in conjunction with its hardware complete previous embodiment method the step of.
Further, the embodiment of the invention provides a kind of machine readable storage medium, machine readable storage medium storages
There is machine-executable instruction, when being called and being executed by processor, machine-executable instruction promotes to locate the machine-executable instruction
Manage the step of device realizes the weight-calibration method of any one of first aspect.
The skill of device, weighing-appliance provided by the present embodiment and machine readable storage medium, realization principle and generation
Art effect is identical with preceding method embodiment, to briefly describe, the embodiment of device, weighing-appliance and machine readable storage medium
Part does not refer to place, can refer to corresponding contents in preceding method embodiment.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (13)
1. a kind of weight-calibration method, which is characterized in that the described method includes:
Obtain this sense weight of specified object and the weight change value of the specified object；
The first weight threshold is determined based on specified reference factor；
Based on the weight change value and first weight threshold, school is carried out to this sense weight of the specified object
It is quasi-.
2. the method according to claim 1, wherein the specified reference factor include temperature factor, humidity because
At least one of element, acceleration of gravity factor, time factor and load capacity factor；It is described to be determined based on specified reference factor
The step of first weight threshold, comprising:
Obtain the parameter value of specified reference factor；
Value obtains the corresponding null offset threshold value of each specified reference factor based on the parameter；
The first weight threshold is determined according to each null offset threshold value.
3. according to the method described in claim 2, it is characterized in that, if the specified reference factor be the temperature factor,
The parameter value is temperature gap；
The value based on the parameter obtains the step of each specified reference factor corresponding null offset threshold value, comprising:
The corresponding null offset of the temperature factor is calculated according to the null offset relationship of temperature parameter value and the temperature factor
Threshold value；
Wherein, the null offset relationship of the temperature factor includes:
ΔWc=λ F.S Δ T
Wherein, Δ WcFor the corresponding null offset threshold value of the temperature factor, F.S is full scale, and λ is percentage error, and Δ T is
The temperature gap.
4. according to the method described in claim 2, it is characterized in that, if the specified reference factor is the acceleration of gravity
Factor, the parameter value are weight parameter value；
The value based on the parameter obtains the step of each specified reference factor corresponding null offset threshold value, comprising:
According to the null offset relationship of the weight parameter value and the acceleration of gravity factor calculate the acceleration of gravity because
The corresponding null offset threshold value of element；Wherein, the weight parameter value includes gravity acceleration value and weight value；
Wherein, the null offset relationship of the acceleration of gravity factor includes:
Wherein, Δ WgFor the corresponding null offset threshold value of the acceleration of gravity factor, g1It is mobile in position for weight detection equipment
Preceding gravity acceleration value, W1To be g when gravity acceleration value1Shi Suoshu specifies the weight value of object, and Δ g is weight inspection
Acceleration of gravity difference of the measurement equipment before and after position is mobile；Wherein, the weight detection equipment is to detect the specified object
Weight equipment.
5. according to the method described in claim 2, it is characterized in that, if the specified reference factor be the time factor,
The parameter value is time difference；
The value based on the parameter obtains the step of each specified reference factor corresponding null offset threshold value, comprising:
The corresponding zero point drift of the time factor is calculated according to the null offset relationship of the time difference and the time factor
Move threshold value；
Wherein, the null offset relationship of the time factor includes:
ΔWw=κ F.S/ Δ t
Wherein, Δ WwFor the corresponding null offset threshold value of the time factor, F.S is full scale, and κ is percentage error, and Δ t is
The time difference.
6. according to the method described in claim 2, it is characterized in that, if the specified reference factor be the load capacity because
Element, the parameter value are the range maximum value of weight detection equipment；Wherein, the weight detection equipment is to detect described specified pair
The equipment of the weight of elephant；
The value based on the parameter obtains the step of each specified reference factor corresponding null offset threshold value, comprising:
Zero point corresponding with the associated load capacity factor of the range maximum value is searched from preset threshold value relation table
Drift threshold；Wherein, record has each range maximum value corresponding with the load capacity factor in the preset threshold value relation table
Null offset threshold value incidence relation.
7. the method according to claim 1, wherein described this sense weight for obtaining specified object and institute
The step of stating the weight change value of specified object, comprising:
Obtain the history sense weight of the specified object；The history sense weight includes in the step for obtaining this sense weight
At least one the history sense weight collected before rapid execution according to prefixed time interval；
History sense weight and this described sense weight based on adjacent time inter determine the specified object in each time
Weight change value in interval.
8. the method according to the description of claim 7 is characterized in that described be based on the weight change value and first weight
Threshold value, the step of calibration to this sense weight of the specified object, comprising:
Calculate the cumulative weight changing value of the corresponding weight change value of the time interval of continuous predetermined number；
When the cumulative weight changing value is less than first weight threshold, the last time sense weight based on the specified object
This sense weight of the specified object is calibrated.
9. the method according to claim 1, wherein described be based on the weight change value and first weight
Threshold value, the step of calibration to this sense weight of the specified object, comprising:
When the weight change value is less than first weight threshold, the last time sense weight of the specified object is determined as
This sense weight of the specified object.
10. the method according to claim 1, wherein the method also includes:
It replenishes according to this sense weight of the specified object after calibration and the generation of preset second weight threshold and reminds letter
Breath.
11. a kind of weight-calibration device, which is characterized in that described device includes:
Weight parameter obtains module, for obtaining this sense weight of specified object and the weight change of the specified object
Value；
Weight threshold determining module, for determining the first weight threshold based on specified reference factor；
Weight-calibration module, for being based on the weight change value and first weight threshold, to the sheet of the specified object
Secondary sense weight is calibrated.
12. a kind of weighing-appliance characterized by comprising processor and storage device；
Computer program is stored on the storage device, the computer program is executed when being run by the processor as weighed
Benefit requires 1 to 10 described in any item methods.
13. a kind of computer readable storage medium, computer program, feature are stored on the computer readable storage medium
The step of being, the described in any item methods of the claims 1 to 10 executed when the computer program is run by processor.
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Application publication date: 20191112 |