CN111750969A - Weight verification method, device and system - Google Patents
Weight verification method, device and system Download PDFInfo
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- CN111750969A CN111750969A CN202010566056.9A CN202010566056A CN111750969A CN 111750969 A CN111750969 A CN 111750969A CN 202010566056 A CN202010566056 A CN 202010566056A CN 111750969 A CN111750969 A CN 111750969A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
- G01G23/012—Testing or calibrating of weighing apparatus with load cells comprising in-build calibration weights
Abstract
The embodiment of the invention discloses a weight verification method, a device and a system, wherein the method comprises the following steps: acquiring environment requirements and a verification mode of the constant temperature and humidity box according to the accuracy grade and specification of the weight; acquiring a loading instruction, and operating according to a preset loading path by the loading device; acquiring environmental parameters in a constant temperature and humidity box; if the environmental parameters meet the requirements of the experimental parameters, calibrating the quality comparator; if the weighing result of the tray meets the verification requirement, loading the target weight on the specified tray; and according to the verification mode, performing weight determination according to a preset strategy matched with the verification mode, and obtaining a weight verification result. And a temperature and humidity control strategy is added, after the environmental conditions meet the experimental requirements, the verification is automatically started, the verification records are automatically recorded, and the artificial interference is eliminated in the whole experimental process. Therefore, the technical problems that the verification of the weight in the prior art is highly dependent on manpower, the environmental condition is difficult to control and the verification mode is limited are solved.
Description
Technical Field
The invention relates to the technical field of metering detection methods, in particular to a weight verification method, a device and a system.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
The weight verification is a process of performing quality verification on the weight by using a mass comparator to perform measurement in a mode of multiple comparisons by adopting a direct comparison method or a combined comparison method between a standard weight and a detected weight according to the national metrological verification rule JJJG 99-2006 weight verification rule under the condition of a rated experimental environment. At present, the weight verification process is greatly dependent on manpower, the labor intensity of workers is high, the workers must enter a laboratory to load, the temperature and humidity of the laboratory are fluctuated due to the fact that the workers enter the laboratory, the environmental condition is not easy to control, and the artificial interference in the experimental process is high.
Disclosure of Invention
Therefore, the embodiment of the invention provides a weight verification method, a device and a system, which aim to solve the technical problems that the weight verification in the prior art has high dependence on manpower, is difficult to control environmental conditions and has a limited verification mode.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
a weight verification method, the method comprising:
acquiring environment requirements and a verification mode of the constant temperature and humidity box according to the accuracy grade and specification of the weight;
acquiring a loading instruction, and operating according to a preset loading path by the loading device;
acquiring environmental parameters in a constant temperature and humidity box;
if the environmental parameters meet the requirements of the experimental parameters, calibrating the quality comparator;
if the weighing result of the tray meets the verification requirement, loading the target weight on the specified tray;
and according to the verification mode, performing weight determination according to a preset strategy matched with the verification mode, and obtaining a weight verification result.
Further, the obtaining of the environmental parameters in the constant temperature and humidity chamber and the judgment that the environmental parameters meet the requirements of the experimental parameters specifically include:
obtaining the current temperature in the constant temperature and humidity box, comparing the current temperature with a preset temperature, and judging that the environmental parameters meet the requirements of experimental parameters if the current temperature is within the range of the preset temperature;
and acquiring the current humidity in the constant temperature and humidity box, comparing the current humidity with the preset humidity, and judging that the environmental parameters meet the requirements of experimental parameters if the current humidity is within the range of the preset humidity.
Further, after obtaining the environmental parameter in the constant temperature and humidity case, still include:
if the current temperature exceeds the range of the preset temperature and/or the current humidity exceeds the range of the preset humidity, judging that the environmental parameters do not meet the requirements of experimental parameters;
and when the environmental parameters do not meet the requirements of the experimental parameters, outputting an alarm instruction.
Further, the method for acquiring environment requirements and checking and determining of the constant temperature and humidity chamber according to the accuracy grade and specification of the weight specifically comprises the following steps:
judging that the verification mode is a one-to-one comparison method, and obtaining a reference tray measurement result based on the one-to-one comparison method;
loading weights to be detected on each tray;
measuring the weight mass value in each tray, and correcting by using the measurement result of the reference tray to obtain a weight verification mass correction value;
repeatedly measuring to obtain the calibration mass correction value of the preset group of weights, and calculating the calibration mass correction value and the actual value of the weights of the tested weights;
judging that the measurement result is valid, and obtaining a weight verification result;
and if the measurement result is judged to be invalid, returning to the step of loading the weights to be detected on each tray, and repeating the detection process.
Further, the obtaining of the measurement result of the reference tray based on the one-to-one comparison method specifically includes:
weighing the tray for a first preset number of times;
calculating the mass difference between the No. N weight and the No. N +1 weight, and recording the mass difference by analogy;
calculating the result repeatability of the quality difference according to the quality differences;
and if the repeatability of the judgment result meets the preset requirement, obtaining a measurement result of the reference tray.
Further, according to the verification mode, weight determination is performed according to a preset strategy matched with the verification mode, and a weight verification result is obtained, and the method specifically comprises the following steps:
judging that the verification mode is a combined component method, and obtaining a reference tray measurement result based on the combined component method;
loading weights to be detected on each tray;
measuring the weight mass value in each tray, and correcting by using the measurement result of the reference tray to obtain a weight verification mass correction value;
repeatedly measuring to obtain the calibration mass correction value of the preset group of weights, and calculating the calibration mass correction value and the actual value of the weights of the tested weights;
judging that the measurement result is valid, and obtaining a weight verification result;
and if the measurement result is judged to be invalid, returning to the step of loading the weights to be detected on each tray, and repeating the detection process.
Further, the obtaining of the reference tray measurement result based on the combined component method specifically includes:
weighing the tray for a second preset number of times;
calculating the mass difference between the No. N weight and the target weight, and recording the mass difference by analogy;
calculating the result repeatability of the quality difference according to the quality differences;
and if the repeatability of the judgment result meets the preset requirement, obtaining a measurement result of the reference tray.
The invention also provides a weight calibrating device, which comprises:
the loading instruction control unit is used for acquiring a loading instruction, starting and adjusting the loading device according to the loading instruction so that the loading device can operate according to a preset loading path and load the target weight into a preset tray;
the environment parameter acquisition unit is used for acquiring environment parameters in the constant temperature and humidity box;
the verification mode judging unit is used for determining a verification mode, and calibrating the quality comparator if the environmental parameters meet the requirements of experimental parameters;
and the verification result acquisition unit is used for performing weight determination according to the verification mode and a preset strategy matched with the verification mode and obtaining a weight verification result.
The invention also provides a weight verification system, comprising: a processor and a memory;
the memory is to store one or more program instructions;
the processor is configured to execute one or more program instructions to perform the method as described above.
The present invention also provides a computer storage medium containing one or more program instructions for performing the method described above by a weight verification system.
According to the weight verification method, the device and the system, the loading device is started and adjusted according to the loading instruction by acquiring the loading instruction, so that the loading device can operate according to a preset loading path and load a target weight into a preset tray; in the experimental process, determining a verification mode, acquiring environmental parameters in the constant temperature and humidity chamber, judging that the environmental parameters meet the requirements of experimental parameters, and calibrating the quality comparator; and according to the verification mode, performing weight determination according to a preset strategy matched with the verification mode, and obtaining a weight verification result.
Therefore, the weight verification method, the device and the system can realize the direct comparison method and the combined comparison method measurement of the weights by selecting different preset strategies, and can meet the requirement E1Grade, E2The verification requirements of the milligram groups of weights or weight groups of the grades and below avoid the limitation of the verification method; meanwhile, a temperature and humidity control strategy is added, the device automatically enters an experimental environment construction and detection state after being started, and after the environmental conditions meet the experimental requirements, the verification and the verification recording are automatically started, so that the artificial interference is eliminated in the whole experimental process. Thereby solving the problem of weight verification in the prior artThe dependence on manpower is large, the environmental condition is difficult to control, and the verification mode is limited.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other implementation drawings can be derived from the drawings provided by those of ordinary skill in the art without any creative effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the scope of the present invention.
Fig. 1 is a flowchart of a weight verification method according to an embodiment of the present invention;
fig. 2 is a structural block diagram of a specific embodiment of the weight verification apparatus provided in the present invention;
fig. 3 is a block diagram of a weight verification system according to an embodiment of the present invention.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment, as shown in fig. 1, the weight verification method provided by the present invention includes the following steps:
s1: acquiring environment requirements and a verification mode of the constant temperature and humidity box according to the accuracy grade and specification of the weight;
s2: acquiring a loading instruction, and operating according to a preset loading path by the loading device;
in the working process, the system acquires the environmental requirements and the verification mode of the constant temperature and humidity chamber specified by verification of the weight corresponding to the accuracy grade according to the accuracy grade and the specification of the weight to be verified. The computer obtains the loading instruction through calculation, and the loading instruction should include the motion path, the action sequence and the like of the loading device.
For example, the computer obtains, through the image capturing device, that the distance between the loading device and the position where the weight to be loaded is placed is d1 on the X axis, the distance on the Y axis is d2, and the distance on the Z axis is d3, and the loading instruction is that the driving motor of the loading device is driven to drive the loading arm to move by the length of d1 on the X axis, by the length of d2 on the Y axis, and by the length of d3 on the Z axis, so as to reach the position where the weight to be loaded is placed, and the weight is hooked by the loading hook at the end of the loading arm; then, the image acquisition equipment acquires the position relationship between the weight at the tail end of the loading device and the preset tray, wherein the position relationship is that the distance on the X axis is D1, the distance on the Y axis is D2, and the distance on the Z axis is D3, then the loading instruction is that a driving motor for driving the loading device drives a loading arm to move by the length of D1 on the X axis, move by the length of D2 on the Y axis, and move by the length of D3 on the Z axis, so that the weight to be loaded is driven to reach the position of the target tray, after the weight is placed on the target tray, a unhooking instruction can be sent to the driving motor, and the driving motor moves downwards for proper displacement according to the instruction and retreats for proper displacement relative to the target tray, so that unhooking is realized. It should be understood that the X-axis, Y-axis, and Z-axis are three reference axes of a standard spatial coordinate system.
S3: the method comprises the steps of acquiring environmental parameters in a constant temperature and humidity chamber, wherein the constant temperature and humidity chamber is a reaction space for weight verification, and in order to ensure that the temperature and the humidity in the reaction space are constant, the environmental parameters acquired in the step at least comprise the current temperature and the current humidity, the maximum fluctuation degree of the temperature and the humidity in a specified time, and other parameters which may influence the verification precision of the weight, such as an airflow parameter, an internal circulation parameter and the like. In addition, in the working process, the mass comparator and the loading device are arranged in the constant-temperature and constant-humidity box, the constant-temperature and constant-humidity box adopts an internal circulation system and a microporous filter membrane to supply air, and the environmental conditions are controlled under the conditions that no obvious airflow exists and the normal measurement of the mass comparator is not influenced.
S4: and if the environmental parameters meet the requirements of the experimental parameters, calibrating the quality comparator.
Specifically, the method for acquiring the environmental parameters in the constant temperature and humidity chamber and judging that the environmental parameters meet the requirements of experimental parameters comprises the following steps:
obtaining the current temperature in the constant temperature and humidity box, comparing the current temperature with a preset temperature, and judging that the environmental parameters meet the requirements of experimental parameters if the current temperature is within the range of the preset temperature;
and acquiring the current humidity in the constant temperature and humidity box, comparing the current humidity with the preset humidity, and judging that the environmental parameters meet the requirements of experimental parameters if the current humidity is within the range of the preset humidity.
S5: and judging that the weighing result of the tray meets the verification requirement, and loading the target weight on the specified tray. Continuously recording the temperature and the humidity in the constant temperature and humidity box within the set time according to the set time interval. The maximum variation of the temperature and the humidity within the specified time is calculated by a computer to be used as the fluctuation degree of the temperature and the humidity, and the environment parameter is judged to meet the requirement of the experiment parameter if the fluctuation degree of the temperature and the humidity within the specified time is within a preset range.
Further, after obtaining the environmental parameter in the constant temperature and humidity case, still include:
if the current temperature exceeds the range of the preset temperature and/or the current humidity exceeds the range of the preset humidity, judging that the environmental parameters do not meet the requirements of experimental parameters;
if the fluctuation degrees of the temperature and the humidity within the specified time exceed the range of the preset temperature and humidity fluctuation degrees, judging that the environmental parameters do not meet the requirements of experimental parameters;
and when the environmental parameters do not meet the requirements of the experimental parameters, outputting an alarm instruction.
That is to say, set up temperature sensor and humidity transducer in the constant temperature and humidity case to be connected with the computer, the temperature parameter and the humidity parameter in the constant temperature and humidity case are gathered regularly to the computer, and temperature, humidity parameter reach the predetermined range and then begin to measure automatically, and ambient temperature, humidity surpass predetermined condition in the measurement process, and the computer automatic early warning is whether to suspend the measurement by the experimenter determination.
S6: according to the verification mode, performing weight determination according to a preset strategy matched with the verification mode, and obtaining a weight verification result; that is, the computer collects the measurement data of the quality comparator, identifies the value stable point of the comparator and automatically records the measurement result, and automatically calculates according to the measurement result, so as to judge the conformity and generate the verification record.
The verification system can be applied to two measurement methods, namely a direct measurement method and a combined comparison method. According to the verification mode, carrying out weight determination according to a preset strategy matched with the verification mode, and obtaining a weight verification result, the method specifically comprises the following steps:
judging that the verification mode is a one-to-one comparison method, and obtaining a reference tray measurement result based on the one-to-one comparison method;
loading weights to be detected on each tray;
measuring the weight mass value in each tray, and correcting by using the measurement result of the reference tray to obtain a weight verification mass correction value;
repeatedly measuring to obtain the calibration mass correction value of the preset group of weights, and calculating the calibration mass correction value and the actual value of the weights of the tested weights; the number of measurements (which may be 1 or 2 or 3 as required) determined in the predetermined set of uncertified modes;
judging that the measurement result is valid, and obtaining a weight verification result;
and if the measurement result is judged to be invalid, returning to the step of loading the weights to be detected on each tray, and repeating the detection process.
The obtaining of the reference tray measurement result based on the one-to-one comparison method specifically includes:
weighing the tray a first preset number of times, for example 6 times;
calculating the mass difference between the No. N weight and the No. N +1 weight, and recording the mass difference by analogy; that is, the mass difference of the weight No. 1 and No. 2, the mass difference of the weight No. 3 and No. 4, and so on are calculated.
Calculating the result repeatability of the quality difference according to the quality differences;
and if the repeatability of the judgment result meets the preset requirement, obtaining a measurement result of the reference tray.
According to the verification mode, carrying out weight verification according to a preset strategy matched with the verification mode, and obtaining a weight verification result, the method specifically comprises the following steps:
judging that the verification mode is a combined component method, and obtaining a reference tray measurement result based on the combined component method;
loading weights to be detected on each tray;
measuring the weight mass value in each tray, and correcting by using the measurement result of the reference tray to obtain a weight verification mass correction value;
repeatedly measuring to obtain the calibration mass correction value of the preset group of weights, and calculating the calibration mass correction value and the actual value of the weights of the tested weights; the number of measurements (which may be 1 or 2 or 3 as required) determined in the predetermined set of uncertified modes;
judging that the measurement result is valid, and obtaining a weight verification result;
and if the measurement result is judged to be invalid, returning to the step of loading the weights to be detected on each tray, and repeating the detection process.
The obtaining of the reference tray measurement result based on the combined component method specifically includes:
weighing the tray a second preset number of times, for example 6 times;
calculating the mass difference between the No. N weight and the target weight, and recording the mass difference by analogy; assuming that the weight No. 1 is a target weight, calculating the mass difference between the weight No. 2 and the weight No. 1, the mass difference between the weight No. 3 and the weight No. 1, and so on.
Calculating the result repeatability of the quality difference according to the quality differences;
and if the repeatability of the judgment result meets the preset requirement, obtaining a measurement result of the reference tray.
In the above specific embodiment, the weight verification method provided by the present invention determines the verification manner according to the accuracy grade and specification of the weight, obtains the loading instruction, and starts and adjusts the loading device according to the loading instruction, so that the loading device operates according to the preset loading path and loads the target weight in the preset tray; in the experimental process, acquiring environmental parameters in the constant temperature and humidity box, judging that the environmental parameters meet the requirement of experimental parameters, and calibrating the quality comparator; and according to the verification mode, performing weight determination according to a preset strategy matched with the verification mode, and obtaining a weight verification result.
Therefore, the weight verification method can realize the direct comparison method and the combined comparison method of the weights by selecting different preset strategies, can meet the verification requirements of the weights or weight groups with E1 grade, E2 grade and the following grades, and avoids the limitation of the verification method; meanwhile, a temperature and humidity control strategy is added, the device automatically enters an experimental environment construction and detection state after being started, after the environmental conditions meet the experimental requirements, the verification and record are automatically started, and the whole experimental process eliminates the human interference. Therefore, the technical problems that the weight verification in the prior art is highly dependent on manpower, the environmental condition is difficult to control and the verification mode is limited are solved.
In addition to the above method, the present invention also provides a weight verification apparatus for performing the above method. In one embodiment, as shown in fig. 2, the apparatus comprises:
the loading instruction control unit 100 is configured to obtain a loading instruction, start and adjust a loading device according to the loading instruction, so that the loading device operates according to a preset loading path and loads a target weight into a preset tray; that is, the computer controls the loading device, and the weights are automatically loaded and unloaded according to the set measurement mode to finish measurement; structurally, the drive motor of the loading device can load or unload weights to a specified preset tray under the control of a loading instruction, and the computer obtains the loading instruction through calculation, wherein the loading instruction comprises a motion path, an action sequence and the like of the loading device.
For example, the computer obtains, through the image capturing device, that the distance between the loading device and the position where the weight to be loaded is placed is d1 on the X axis, the distance on the Y axis is d2, and the distance on the Z axis is d3, and the loading instruction is that the driving motor of the loading device is driven to drive the loading arm to move by the length of d1 on the X axis, by the length of d2 on the Y axis, and by the length of d3 on the Z axis, so as to reach the position where the weight to be loaded is placed, and the weight is hooked by the loading hook at the end of the loading arm; then, the image acquisition equipment acquires the position relationship between the weight at the tail end of the loading device and the preset tray, wherein the position relationship is that the distance on the X axis is D1, the distance on the Y axis is D2, and the distance on the Z axis is D3, then the loading instruction is that a driving motor for driving the loading device drives a loading arm to move by the length of D1 on the X axis, move by the length of D2 on the Y axis, and move by the length of D3 on the Z axis, so that the weight to be loaded is driven to reach the position of the target tray, after the weight is placed on the target tray, a unhooking instruction can be sent to the driving motor, and the driving motor moves downwards for proper displacement according to the instruction and retreats for proper displacement relative to the target tray, so that unhooking is realized. It should be understood that the X-axis, Y-axis, and Z-axis are three reference axes of a standard spatial coordinate system.
An environmental parameter obtaining unit 200, configured to obtain an environmental parameter in the constant temperature and humidity chamber; in order to ensure that the temperature and the humidity in the reaction space are constant, the environmental parameters acquired by the environmental parameter acquiring unit 200 at least include the current temperature and the current humidity, the temperature and the humidity fluctuation within a specified time, and other parameters that may affect the verification accuracy of the weight, such as an airflow parameter and an internal circulation parameter. In addition, in the working process, the mass comparator and the loading device are arranged in the constant temperature and humidity box, the constant temperature and humidity box adopts an internal circulation system and a microporous filter membrane to supply air, and the environmental conditions are controlled under the conditions of no obvious airflow and no influence on the normal measurement of the mass comparator.
A verification mode determination unit 300, configured to determine that the environmental parameter meets the requirement of the experimental parameter, calibrate the quality comparator, and determine a verification mode; the verification mode determination unit 300 is specifically configured to:
obtaining the current temperature in the constant temperature and humidity box, comparing the current temperature with a preset temperature, and judging that the environmental parameters meet the requirements of experimental parameters if the current temperature is within the range of the preset temperature;
and acquiring the current humidity in the constant temperature and humidity box, comparing the current humidity with the preset humidity, and judging that the environmental parameters meet the requirements of experimental parameters if the current humidity is within the range of the preset humidity.
Further, the verification mode determination unit 300 is further configured to determine that the environmental parameter does not meet the requirement of the experimental parameter when the current temperature exceeds the range of the preset temperature and/or when the current humidity exceeds the range of the preset humidity and the temperature and humidity fluctuation degree within the specified time exceeds the preset range after acquiring the environmental parameter in the constant temperature and humidity chamber; and when the environmental parameters do not meet the requirements of the experimental parameters, outputting an alarm instruction.
That is to say, set up temperature sensor and humidity transducer in the constant temperature and humidity case to be connected with the computer, the temperature parameter and the humidity parameter in the constant temperature and humidity case are gathered regularly to the computer, and temperature, humidity parameter reach the predetermined range and then begin to measure automatically, and ambient temperature, humidity surpass predetermined condition in the measurement process, and the computer automatic early warning is whether to suspend the measurement by the experimenter determination.
And the verification result obtaining unit 400 is used for performing weight determination according to the verification mode and a preset strategy matched with the verification mode and obtaining a weight verification result. That is, the computer collects the measurement data of the quality comparator, identifies the value stable point of the comparator and automatically records the measurement result, and automatically calculates according to the measurement result, so as to judge the conformity and generate the verification record.
The verification system can be applied to two measurement methods, namely a direct measurement method and a combined comparison method. The verification result obtaining unit 400 is specifically configured to:
judging that the verification mode is a one-to-one comparison method, and obtaining a reference tray measurement result based on the one-to-one comparison method;
loading weights to be detected on each tray;
measuring the weight mass value in each tray, and correcting by using the measurement result of the reference tray to obtain a weight verification mass correction value;
repeating the measurement to obtain two groups of weight verification mass correction values, and calculating the weight verification mass correction value and the actual value of the detected weight;
judging that the measurement result is valid, and obtaining a weight verification result;
and if the measurement result is judged to be invalid, returning to the step of loading the weights to be detected on each tray, and repeating the detection process.
The above-mentioned reference tray measurement result is obtained based on a one-to-one comparison method, and the verification result obtaining unit 400 is specifically configured to:
weighing the tray a first preset number of times, for example 6 times;
calculating the mass difference between the No. N weight and the No. N +1 weight, and recording the mass difference by analogy; that is, the mass difference of the weight No. 1 and No. 2, the mass difference of the weight No. 3 and No. 4, and so on are calculated.
Calculating the result repeatability of the quality difference according to the quality differences;
and if the repeatability of the judgment result meets the preset requirement, obtaining a measurement result of the reference tray.
According to the verification mode, the weight is determined according to a preset strategy matched with the verification mode, and when a weight verification result is obtained, the verification result acquisition unit 400 is specifically used for:
judging that the verification mode is a combined component method, and obtaining a reference tray measurement result based on the combined component method;
loading weights to be detected on each tray;
measuring the weight mass value in each tray, and correcting by using the measurement result of the reference tray to obtain a weight verification mass correction value;
repeating the measurement to obtain two groups of weight verification mass correction values, and calculating the weight verification mass correction value and the actual value of the detected weight;
judging that the measurement result is valid, and obtaining a weight verification result;
and if the measurement result is judged to be invalid, returning to the step of loading the weights to be detected on each tray, and repeating the detection process.
The above-mentioned reference tray measurement result is obtained based on the combined component method, and the verification result obtaining unit 400 is specifically configured to:
weighing the tray a second preset number of times, for example 6 times;
calculating the mass difference between the No. N weight and the target weight, and recording the mass difference by analogy; assuming that the weight No. 1 is a target weight, calculating the mass difference between the weight No. 2 and the weight No. 1, the mass difference between the weight No. 3 and the weight No. 1, and so on.
Calculating the result repeatability of the quality difference according to the quality differences;
and if the repeatability of the judgment result meets the preset requirement, obtaining a measurement result of the reference tray.
In the above specific embodiment, the weight verification device provided by the invention is configured to, by acquiring the loading instruction and starting and adjusting the loading device according to the loading instruction, facilitate the loading device to operate according to a preset loading path and load the target weight into a preset tray; in the experimental process, acquiring environmental parameters in the constant temperature and humidity chamber, calibrating the quality comparator and determining the verification mode if the environmental parameters meet the requirements of the experimental parameters; and according to the verification mode, performing weight determination according to a preset strategy matched with the verification mode, and obtaining a weight verification result.
Therefore, the weight verification device can realize the direct comparison method and the combined comparison method measurement of the weights by selecting different preset strategies, can meet the verification requirements of weights or weight groups with E1 grade, E2 grade and the following grades, and avoids the limitation of the verification method; meanwhile, a temperature and humidity control strategy is added, after the equipment is started, the experimental environment construction and detection state is automatically entered, after the environmental conditions meet the experimental requirements, the verification and the verification recording are automatically started, and the artificial interference is eliminated in the whole experimental process. Therefore, the technical problems that the verification of the weight in the prior art is highly dependent on manpower, the environmental condition is difficult to control and the verification mode is limited are solved.
According to a third aspect of the embodiments of the present invention, there is also provided a weight verification system, as shown in fig. 3, including: a processor 201 and a memory 202;
the memory is to store one or more program instructions;
the processor is configured to execute one or more program instructions to perform the method as described above.
In correspondence with the above embodiments, embodiments of the present invention also provide a computer storage medium containing one or more program instructions therein. Wherein the one or more program instructions are for performing the method described above by a weight verification system.
In an embodiment of the invention, the processor may be an integrated circuit chip having signal processing capability. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete Gate or transistor logic device, discrete hardware component.
The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or may be implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register, etc. storage media well known in the art. The processor reads the information in the storage medium and completes the steps of the method in combination with the hardware.
The storage medium may be a memory, for example, which may be volatile memory or nonvolatile memory, or which may include both volatile and nonvolatile memory.
The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable PROM (EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash Memory.
The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), SLDRAM (SLDRAM), and Direct Rambus RAM (DRRAM).
The storage media described in connection with the embodiments of the invention are intended to comprise, without being limited to, these and any other suitable types of memory.
Those skilled in the art will appreciate that the functionality described in the present invention can be implemented in a combination of hardware and software in one or more of the examples described above. When software is applied, the corresponding functionality may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above embodiments are only for illustrating the embodiments of the present invention and are not to be construed as limiting the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the embodiments of the present invention shall be included in the scope of the present invention.
Claims (10)
1. A weight verification method, comprising:
acquiring environment requirements and a verification mode of the constant temperature and humidity box according to the accuracy grade and specification of the weight;
acquiring a loading instruction, and operating according to a preset loading path by the loading device;
acquiring environmental parameters in a constant temperature and humidity box;
if the environmental parameters meet the requirements of the experimental parameters, calibrating the quality comparator;
if the weighing result of the tray meets the verification requirement, loading the target weight on the specified tray;
and according to the verification mode, performing weight determination according to a preset strategy matched with the verification mode, and obtaining a weight verification result.
2. The weight verification method according to claim 1, wherein the acquiring of the environmental parameters in the constant temperature and humidity chamber and the determining that the environmental parameters meet the requirements of experimental parameters specifically comprises:
acquiring the current temperature in the constant temperature and humidity box, comparing the current temperature with a preset temperature, and judging that the environmental parameters meet the requirements of experimental parameters if the current temperature is within the range of the preset temperature;
and acquiring the current humidity in the constant temperature and humidity box, comparing the current humidity with the preset humidity, and judging that the environmental parameters meet the requirements of experimental parameters if the current humidity is within the range of the preset humidity.
3. The weight verification method according to claim 2, wherein after the environmental parameters in the constant temperature and humidity chamber are obtained, the method further comprises the following steps:
if the current temperature exceeds the range of the preset temperature and/or the current humidity exceeds the range of the preset humidity, judging that the environmental parameters do not meet the requirements of experimental parameters;
and when the environmental parameters do not meet the requirements of the experimental parameters, outputting an alarm instruction.
4. The weight verification method according to claim 1, wherein the acquiring of the environmental requirements and verification mode of the constant temperature and humidity chamber according to the accuracy grade and specification of the weight specifically comprises:
judging that the verification mode is a one-to-one comparison method, and obtaining a reference tray measurement result based on the one-to-one comparison method;
loading weights to be detected on each tray;
measuring the weight mass value in each tray, and correcting by using the measurement result of the reference tray to obtain a weight verification mass correction value;
repeatedly measuring to obtain the calibration mass correction value of the preset group of weights, and calculating the calibration mass correction value and the actual value of the weights of the tested weights;
judging that the measurement result is valid, and obtaining a weight verification result;
and if the measurement result is judged to be invalid, returning to the step of loading the weights to be detected on each tray, and repeating the detection process.
5. The weight verification method according to claim 4, wherein the obtaining of the reference tray measurement result based on a one-to-one comparison method specifically comprises:
weighing the tray for a first preset number of times;
calculating the mass difference between the No. N weight and the No. N +1 weight, and recording the mass difference by analogy;
calculating the result repeatability of the quality difference according to the quality differences;
and if the repeatability of the judgment result meets the preset requirement, obtaining a measurement result of the reference tray.
6. The weight verification method according to claim 1, wherein the weight verification is performed according to the verification mode and a preset strategy matched with the verification mode, and a weight verification result is obtained, and the method specifically comprises the following steps:
judging that the verification mode is a combined component method, and obtaining a reference tray measurement result based on the combined component method;
loading weights to be detected on each tray;
measuring the weight mass value in each tray, and correcting by using the measurement result of the reference tray to obtain a weight verification mass correction value;
repeatedly measuring to obtain the calibration mass correction value of the preset group of weights, and calculating the calibration mass correction value and the actual value of the weights of the tested weights;
judging that the measurement result is valid, and obtaining a weight verification result;
and if the measurement result is judged to be invalid, returning to the step of loading the weights to be detected on each tray, and repeating the detection process.
7. The weight verification method according to claim 6, wherein the obtaining of the reference tray measurement result based on the combined component method specifically comprises:
weighing the tray for a second preset number of times;
calculating the mass difference between the No. N weight and the target weight, and recording the mass difference by analogy;
calculating the result repeatability of the quality difference according to the quality differences;
and if the repeatability of the judgment result meets the preset requirement, obtaining a measurement result of the reference tray.
8. A weight verification apparatus for carrying out the method according to any one of claims 1 to 7, wherein the apparatus comprises:
the loading instruction control unit is used for acquiring a loading instruction, starting and adjusting the loading device according to the loading instruction so that the loading device can operate according to a preset loading path and load the target weight into a preset tray;
the environment parameter acquisition unit is used for acquiring environment parameters in the constant temperature and humidity box;
the verification mode judging unit is used for determining a verification mode, and calibrating the quality comparator if the environmental parameters meet the requirements of experimental parameters;
and the verification result acquisition unit is used for performing weight determination according to the verification mode and a preset strategy matched with the verification mode and obtaining a weight verification result.
9. A weight verification system, comprising: a processor and a memory;
the memory is to store one or more program instructions;
the processor, configured to execute one or more program instructions to perform the method of any of claims 1-7.
10. A computer storage medium comprising one or more program instructions for performing the method of any one of claims 1-7 by a weight verification system.
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