CN114889338B - Detection threshold setting method and device, printer and storage medium - Google Patents
Detection threshold setting method and device, printer and storage medium Download PDFInfo
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- CN114889338B CN114889338B CN202210345036.8A CN202210345036A CN114889338B CN 114889338 B CN114889338 B CN 114889338B CN 202210345036 A CN202210345036 A CN 202210345036A CN 114889338 B CN114889338 B CN 114889338B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4075—Tape printers; Label printers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention discloses a detection threshold setting method and device, a printer and a storage medium. The method comprises the following steps: determining a misjudgment value of a transistor on a printer, and acquiring a paper average value level and a paper-free average value level of the printer within a preset time; determining whether the paper average level is in a misjudgment interval corresponding to the misjudgment value; when the paper mean level is in the misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in the amplification interval; when the transistor is in the amplification region, determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value, and setting the target detection level as a detection threshold value of the label peeling state of the printer. In other words, according to the embodiment of the invention, whether the detection interval corresponding to the transistor is deviated or not is determined by setting the erroneous judgment value, the erroneous judgment interval, the paper average level and the paper-free average level, so that the detection level corresponding to the current printer is determined, the label peeling condition of the printer is accurately determined, and the normal operation of the printer is ensured.
Description
Technical Field
The present invention relates to computer technologies, and in particular, to a method and an apparatus for setting a detection threshold, a printer, and a storage medium.
Background
With the popularization of portable electronic products, label printers are used in offices, factories, warehouses, markets, and other places. The label printer generally possesses the function of automatic peeling off the base stock to in label to print the completion pastes and puts, when label printer printed according to the label data of input when printing in succession, the printer need wait to print the label of completion and taken away the back, could continue to print, otherwise can lead to the label to pile up and glue together, can't use. Whether the label that prior art adopted the photoelectricity mode to listen to and printed the completion is taken away, it is two kinds to be provided with paper level and no paper level generally, whether the label for confirming to print the completion is taken away, in order to distinguish there is paper level and no paper level to regard as the judgement threshold value with the median of two kinds of levels, because the label printer sets up and detects photoelectric position all externally, produce the dust in this position easily when the result design is improper and pile up, and it can receive ambient light's influence to detect photoelectric use, have warm and flutter and ageing problem simultaneously, all can influence the automatic use of peeling off the base stock function of label printer.
Disclosure of Invention
The invention provides a detection threshold setting method and device, a printer and a storage medium, which are used for dynamically monitoring the label peeling state of the printer, so that the detection level corresponding to the current printer can be determined, the label peeling condition of the printer can be accurately judged, and the normal operation of the printer can be ensured.
In a first aspect, an embodiment of the present invention provides a detection threshold setting method, where the method includes:
determining a misjudgment value of a transistor on a printer, and acquiring a paper average value level and a paper-free average value level of the printer within preset time;
determining whether the paper average level is in a misjudgment interval corresponding to the misjudgment value;
when the paper average level is in a misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in an amplification interval;
when the transistor is in an amplification interval, determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value, and setting the target detection level as a detection threshold value of a label peeling state of the printer.
Further, determining whether the paper average level is in a misjudgment interval corresponding to the misjudgment value includes:
determining a misjudgment interval corresponding to the misjudgment value according to the misjudgment value and the initial detection level of the transistor;
and determining whether the paper average value level is in the misjudgment interval.
Further, determining a target detection level of the transistor according to the paper average level, the paper-out average level and the misjudgment value includes:
determining whether the misjudgment interval falls into a detection interval corresponding to the paper mean level and the paper-free mean level;
and when the misjudgment interval falls into a detection interval corresponding to the paper average level and the paper-free average level, calculating the target detection level according to the paper average level and the paper-free average level.
Further, calculating the target detection level according to the paper average level and the non-paper average level includes:
and determining the sum of the paper average level and the paper-free average level, and halving the sum of the paper average level and the paper-free average level to obtain the target detection level.
Further, after dividing the sum of the paper average level and the paper-free average level into two halves to obtain the target detection level, the method further includes:
determining whether a difference value between the paper-present average level and the paper-absent average level is smaller than the erroneous judgment value;
and when the difference value between the paper average level and the paper-free average level is smaller than the misjudgment value, starting a fault early warning mechanism of the printer.
Further, after determining whether the transistor is in the amplification region, the method further includes:
determining a difference between the paper mean level and the paper-out mean level when the transistor is in a cutoff interval;
determining whether the difference value between the paper average level and the paper-free average level meets a preset detection level calculation condition;
and when the difference value of the paper average level and the paper-free average level meets the preset detection level calculation condition, calculating the target detection level according to the paper average level and the paper-free average level.
Further, determining whether the transistor is in an amplification region includes:
acquiring an emission node voltage and a starting voltage of the transistor, and determining whether the emission node voltage is greater than the starting voltage;
and when the voltage of the emission node is greater than the starting voltage and the collector junction of the transistor is reversely biased, determining that the transistor is in the amplification interval.
In a second aspect, an embodiment of the present invention further provides a detection threshold setting apparatus, including:
the level acquisition module is used for determining the misjudgment value of a transistor on a printer and acquiring the paper average value level and the paper-free average value level of the printer within preset time;
the level determining module is used for determining whether the paper average level is in a misjudgment interval corresponding to the misjudgment value;
the interval determining module is used for determining whether the transistor is in an amplifying interval or not when the paper average level is in a misjudgment interval corresponding to the misjudgment value;
and the detection determining module is used for determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value when the transistor is in an amplification section, and setting the target detection level as a detection threshold value of a label peeling state of the printer.
In a third aspect, an embodiment of the present invention further provides a printer, including:
one or more processors;
a storage device for storing one or more programs,
when the one or more programs are executed by the one or more processors, the one or more processors implement the detection threshold setting method.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the detection threshold setting method.
In the embodiment of the invention, the paper average value level and the paper-free average value level of the printer within the preset time are obtained by determining the misjudgment value of the transistor on the printer; determining whether the paper average level is in a misjudgment interval corresponding to the misjudgment value; when the paper mean level is in the misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in the amplification interval; when the transistor is in the amplification region, determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value, and setting the target detection level as a detection threshold value of the label peeling state of the printer. That is, in the embodiment of the present invention, whether the detection interval corresponding to the transistor is shifted or not is determined by setting the erroneous judgment value, the erroneous judgment interval, the paper-containing average level, and the paper-free average level of the transistor on the printer, so as to determine the detection level corresponding to the current printer, accurately determine the label peeling condition of the printer, and ensure the normal operation of the printer.
Drawings
Fig. 1 is a schematic flowchart of a detection threshold setting method according to an embodiment of the present invention;
fig. 2 is another schematic flow chart of a detection threshold setting method according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a detection threshold setting method according to an embodiment of the present invention;
fig. 4 is another schematic diagram illustrating a detection threshold setting method according to an embodiment of the invention;
fig. 5 is a schematic structural diagram of a detection threshold setting apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a printer according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic flowchart of a detection threshold setting method according to an embodiment of the present invention, which can be executed by a detection threshold setting apparatus according to an embodiment of the present invention, and the apparatus can be implemented in software and/or hardware. In a particular embodiment, the apparatus may be integrated in an electronic device, which may be, for example, a server. The following embodiments will be described by taking as an example that the apparatus is integrated in an electronic device, and referring to fig. 1, the method may specifically include the following steps:
s110, determining a misjudgment value of a transistor on the printer, and acquiring a paper average level and a paper-free average level of the printer within preset time;
the printer may be a label printer with an automatic peeling background function, and may automatically peel off the printed label so that the printed label is directly taken away for pasting. The printer can continue to print according to the continuously issued data to be printed only after the label printed by the printer is taken away, otherwise, the label can be stacked to be incapable of normally printing the label. The transistor can be a photoelectric detection component installed on the printer and used for detecting whether the printed label is taken away or not, and the initial detection level corresponding to the printer can be determined according to the photoelectric attribute of the transistor. The initial detection level corresponding to the printer can be a detection threshold value used for judging whether the label printed by the printer is taken away or not at the initial running stage of the printer, and when the current output level of the printer is greater than the detection threshold value, the label printed by the printer is taken away; when the current output level of the printer is smaller than the detection threshold, the mark printed by the printer is not taken away. The current output level of the printer may be the output level of the component that detects whether the label is peeled off and removed. The misjudgment value of the transistor on the printer can be a judgment threshold value corresponding to the misjudgment of the transistor of the printer according to the photoelectric sensitivity corresponding to the transistor on the printer and the transmittance of printing paper, and when the current output level of the printer is smaller than the sum of the detection level and the misjudgment value and is larger than the detection level, the existence of paper is judged, but the possibility of the misjudgment is provided. The preset time can be a time window set according to actual requirements and experimental data, wherein the paper average level can be an average value of levels corresponding to all printer output positions with paper in the preset time, and the paper-free average level can be an average value of levels corresponding to all printer output positions without paper in the preset time.
In specific implementation, a judgment threshold corresponding to misjudgment of a transistor of a printer is determined according to the photoelectric sensitivity corresponding to the transistor on the printer and the transmittance of printing paper, or a misjudgment value corresponding to the transistor of the printer is set according to actual requirements and experimental data, so that whether the current output level of the printer has the possibility of misjudgment or not is determined. The method comprises the steps of obtaining the paper average level and the paper-free average level of the printer within the preset time, determining whether the detection interval of the printer deviates or not according to the paper average level and the paper-free average level, and avoiding the failure of the initial detection level caused by the setting problem, the environmental problem and the aging problem of detection components and parts of the output port of the printer in the using process of the printer.
S120, determining whether the paper average value level is in a misjudgment interval corresponding to the misjudgment value;
in the specific implementation, the misjudgment value corresponding to the transistor on the printer is set according to the photoelectric sensitivity corresponding to the transistor on the printer and the transmittance of printing paper, and the misjudgment value corresponding to the transistor on the printer can also be set according to actual requirements and experimental data. And determining a misjudgment interval corresponding to the misjudgment value according to the misjudgment value corresponding to the transistor on the printer and the initial detection level corresponding to the printer. And determining whether the paper average level is in a misjudgment section corresponding to the misjudgment value according to the misjudgment section corresponding to the misjudgment value, if the paper average level is in the misjudgment section corresponding to the misjudgment value, indicating that the detection section of the printer deviates, and determining whether the detection area between the paper average level and the paperless average level is compressed again to determine the calculation mode of the target detection level. And judging whether the paper average level is in a misjudgment interval corresponding to the misjudgment value, wherein the misjudgment interval corresponding to the paper average level is used and is related to the sum of the initial detection level and the misjudgment value.
S130, when the paper mean level is in the misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in the amplification interval;
in the specific implementation, whether the paper average level is in the misjudgment interval corresponding to the misjudgment value is determined according to the misjudgment interval corresponding to the misjudgment value, if the paper average level is in the misjudgment interval corresponding to the misjudgment value, the detection interval of the printer deviates, whether the transistor is in the amplification interval needs to be determined, the output voltage and the output current of the transistor are in direct proportion, a transistor amplification working model can be determined according to a volt-ampere characteristic curve, the linear amplification of the input current corresponding to the transistor is realized, and whether the detection interval of the printer deviates according to the amplification characteristic, so that the calculation mode of the target detection level is determined.
S140, when the transistor is in the amplification region, determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value, and setting the target detection level as a detection threshold value of the label peeling state of the printer.
In a specific implementation, the label peeling state may be a state of whether a label printed by the printer is removed, where the label peeling state may be that label peeling is removed and label peeling is not removed. The target detection level can be a detection threshold value used for judging whether a label printed by the printer is taken away or not at present, and when the initial detection level is invalid due to the fact that the setting problem, the environmental problem and the aging problem of a printer output port detection component of the printer in the using process of the printer, the target detection level is used for detecting whether the label printed by the printer is taken away or not. When the transistor is in an amplification interval, an amplification working model of the transistor can be determined according to a volt-ampere characteristic curve, a detection interval of the printer is determined to shift according to the amplification characteristic, when the difference value between the paper mean level and the paperless mean level is larger than two times of a misjudgment value, the detection interval of the printer shifts, the detection interval corresponding to the paper mean level and the paperless mean level is not compressed, a target detection level of the transistor can be calculated according to the paper mean level and the paperless mean level, and the target detection level is set as a detection threshold value of a label peeling state of the printer, so that the printer can be guaranteed to normally print according to the target detection level.
In the embodiment of the invention, the paper average value level and the paper-free average value level of the printer within the preset time are obtained by determining the misjudgment value of the transistor on the printer; determining whether the paper average level is in a misjudgment interval corresponding to the misjudgment value; when the paper mean level is in the misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in the amplification interval; when the transistor is in the amplification region, determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value, and setting the target detection level as a detection threshold value of the label peeling state of the printer. That is, in the embodiment of the present invention, whether the detection interval corresponding to the transistor is shifted or not is determined by setting the erroneous judgment value, the erroneous judgment interval, the paper-containing average level, and the paper-free average level of the transistor on the printer, so as to determine the detection level corresponding to the current printer, accurately determine the label peeling condition of the printer, and ensure the normal operation of the printer.
The method for setting a detection threshold provided in the embodiment of the present invention is further described below, and as shown in fig. 2, the method may specifically include the following steps:
s210, determining a misjudgment value of a transistor on a printer, and acquiring a paper average value level and a paper-free average value level of the printer within preset time;
s220, determining a misjudgment interval corresponding to the misjudgment value according to the misjudgment value and the initial detection level of the transistor, and determining whether the average level with paper is in the misjudgment interval;
in specific implementation, the misjudgment value corresponding to the transistor on the printer is set according to the photoelectric sensitivity corresponding to the transistor on the printer and the transmittance of printing paper, or the misjudgment value corresponding to the transistor on the printer is set according to actual requirements and experimental data. And determining a misjudgment interval corresponding to the misjudgment value according to the misjudgment value corresponding to the transistor on the printer and the initial detection level corresponding to the printer. And determining whether the paper average level is in a misjudgment interval corresponding to the misjudgment value according to the misjudgment interval corresponding to the misjudgment value, if the paper average level is in the misjudgment interval corresponding to the misjudgment value, indicating that the detection interval of the printer deviates, and judging whether the detection area corresponding to the paper average level and the paper-free average level is compressed again to determine the calculation mode of the target detection level. The method comprises the steps of calculating the sum of an initial detection value and a misjudgment value corresponding to a printer as the upper limit value of a misjudgment interval, calculating the difference between the initial detection value and the misjudgment value corresponding to the printer as the lower limit value of the misjudgment interval, and judging whether a paper mean level is in the misjudgment interval corresponding to the misjudgment value or not by using the upper limit value of the misjudgment interval and the paper mean level; and judging whether the paperless mean level is in a misjudgment interval corresponding to the misjudgment value or not by using the lower limit value of the misjudgment interval and the paperless mean level.
S230, when the paper mean level is in the misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in the amplification interval;
further, determining whether the transistor is in an amplification region includes:
acquiring the emission node voltage and the starting voltage of the transistor, and determining whether the emission node voltage is greater than the starting voltage;
and when the voltage of the emitting node is larger than the starting voltage and the collector junction of the transistor is reversely biased, determining that the transistor is in the amplification interval.
In a specific implementation, the transistor is composed of an emitter, a base and a collector, wherein a PN junction formed by the emitter and the base in the transistor is called an emitting node, and a PN junction formed by the collector and the base in the transistor is called a collector junction. The turn-on voltage may be the collector voltage at which the transistor transitions from a non-conductive to a conductive state. Obtaining the emission node voltage and the starting voltage of the transistor, determining whether the emission node voltage is greater than the starting voltage, when the emission node voltage is greater than the starting voltage, indicating that the emission junction is forward biased, most current carriers of the emitter continuously cross the emission junction and enter the base to form emitter current, meanwhile, the collector junction of the transistor is reverse biased, the reverse voltage of the collector junction is large, the reverse voltage prevents collector electrons from diffusing to the base, the output voltage and the output current of the transistor are in direct proportion, determining a transistor amplification working model according to a volt-ampere characteristic curve, realizing linear amplification of input current corresponding to the transistor, and determining whether a detection interval of the printer deviates according to the amplification characteristic so as to determine a calculation mode of a target detection level.
Further, after determining whether the transistor is in the amplification region, the method further includes:
when the transistor is in a cut-off interval, determining the difference value between the paper average value level and the paper-free average value level;
determining whether the difference value of the paper average value level and the paper-free average value level meets the preset detection level calculation condition;
and when the difference value of the paper average level and the paperless average level meets the preset detection level calculation condition, calculating the target detection level according to the paper average level and the paperless average level.
For example, after determining whether the transistor is in the amplification section, if the transistor is not in the amplification section, determining whether the transistor is in the cut-off section, when the transistor is in the cut-off section, the transistor cannot normally operate in a region below a curve corresponding to a zero transistor input current in a transistor output characteristic curve, and a detection level calculation condition needs to be preset according to actual requirements and experimental data, where the preset detection level calculation condition is used to judge a relationship between a misjudgment section and a detection section corresponding to a paper-presence average level and a paper-absence average level of the printer, and may be to judge whether the detection section falls within the misjudgment section. Specifically, whether the detection interval falls within the misjudgment interval or not is judged, and the difference value between the paper average level and the paperless average level and the misjudgment value and the difference value between the paper average level and the paperless average level and the double misjudgment value are compared, wherein the difference value between the paper average level and the paperless average level is larger than the misjudgment value, the difference value between the paper average level and the paperless average level is smaller than the double misjudgment value, the detection interval is smaller than the misjudgment interval range, and the compressed amplitude of the detection interval is larger and accords with the preset detection level calculation condition.
In specific implementation, when the difference between the paper average level and the paperless average level meets the preset detection level calculation condition, it is indicated that the detection interval is smaller than the erroneous judgment interval, the compressed amplitude of the detection interval is larger, and it is indicated that the detection interval of the printer is larger in offset. When the difference value of the paper average level and the paperless average level meets the preset detection level calculation condition, the printer carries out fault early warning based on the fact that the paper average level is in a misjudgment interval corresponding to the misjudgment value, namely the detection interval slides down below the misjudgment interval and has large deviation, and reminds a user of the printer that the printer possibly has the problems of aging or dust accumulation and the like corresponding to viewpoints through early warning, and the printer needs to be maintained.
Fig. 3 is a schematic diagram of a detection threshold setting method according to an embodiment of the present invention, as shown in fig. 3, after the printer is used for a long time, the paper-containing average level a shifts and slips down below the upper limit value of the erroneous determination interval, and the paper-free average level B does not shift and slip down, so that the detection interval corresponding to the paper-containing average level and the paper-free average level is shortened, the sum of the paper-containing average level and the paper-free average level needs to be halved to obtain a target detection level, and the target detection level is set as the detection threshold of the label peeling state of the printer, so as to ensure the normal operation of the printer.
S240, when the transistor is in an amplification interval, determining whether the misjudgment interval falls into a detection interval corresponding to the paper mean level and the paper-free mean level;
in the specific implementation, when the transistor is in the amplification region, the amplification working model of the transistor can be determined according to the volt-ampere characteristic curve, the detection region of the printer is determined to shift according to the amplification characteristic, and when the difference value between the paper mean level and the paperless mean level is larger than two times of the misjudgment value, the detection region of the printer shifts. Whether the misjudgment interval falls in the detection interval corresponding to the paper average level and the paperless average level needs to be determined, when the misjudgment interval falls in the detection interval corresponding to the paper average level and the paperless average level, the fact that the detection interval deviates and slides downwards is not large is indicated, the target detection level of the transistor can be calculated according to the paper average level and the paperless average level, and the target detection level is set as a detection threshold value of the label peeling state of the printer, so that the printer can be guaranteed to normally perform printing work according to the target detection level.
Fig. 4 is another schematic diagram of the detection threshold setting method according to the embodiment of the present invention, as shown in fig. 4, after the printer is used for a long time, the paper mean level a shifts and slips down, and when the paper mean level a does not reach the upper limit of the erroneous determination interval, the paper-free mean level B shifts and slips down, so that the detection interval corresponding to the paper mean level and the paper-free mean level is not shortened, but only slips down, and the sum of the paper mean level and the paper-free mean level needs to be halved to obtain the target detection level, and the target detection level is set as the detection threshold of the label peeling state of the printer, so as to ensure the normal operation of the printer.
And S250, when the misjudgment interval falls into the detection interval corresponding to the paper average level and the paperless average level, calculating a target detection level according to the paper average level and the paperless average level, and setting the target detection level as a detection threshold value of the label peeling state of the printer.
Further, calculating the target detection level according to the paper average level and the paper-free average level includes:
and determining the sum of the paper average level and the paper-free average level, and halving the sum of the paper average level and the paper-free average level to obtain the target detection level.
In the specific implementation, according to the calculation of the difference value between the paper average level and the paperless average level, the difference value between the paper average level and the paperless average level is halved, the intermediate value between the paper average level and the paperless average level is calculated to serve as a target detection level, and the target detection level is set as a detection threshold value of a label peeling state of the printer, so that the printer is guaranteed to normally perform printing work according to the target detection level.
Further, after dividing the sum of the paper average level and the paper-free average level into two halves to obtain the target detection level, the method further includes:
determining whether the difference value of the paper average level and the paper-free average level is smaller than a misjudgment value;
and starting a fault early warning mechanism of the printer when the difference value between the paper average level and the paperless average level is smaller than the misjudgment value.
In the specific implementation, after the target detection level is obtained, the difference between the paper average level and the paperless average level is calculated according to the corresponding sliding window in the preset time, if the difference between the paper average level and the paperless average level is smaller than a misjudgment value, it is indicated that the detection interval corresponding to the paper average level and the paperless average level continues to decrease, and the detection accuracy of the label is very low, so that the printer is in a fault state and cannot be used normally, and a fault warning needs to be sent out, so that a user is reminded according to the fault warning that the printer cannot work normally in the fault state and needs to be maintained.
In the embodiment of the invention, the paper average value level and the paper-free average value level of the printer within the preset time are obtained by determining the misjudgment value of the transistor on the printer; determining whether the paper average value level is in a misjudgment interval corresponding to the misjudgment value; when the paper mean level is in the misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in the amplification interval; when the transistor is in the amplification region, determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value, and setting the target detection level as a detection threshold value of the label peeling state of the printer. That is, in the embodiment of the present invention, whether the detection interval corresponding to the transistor is shifted or not is determined by setting the erroneous judgment value, the erroneous judgment interval, the paper-containing average level, and the paper-free average level of the transistor on the printer, so as to determine the detection level corresponding to the current printer, accurately determine the label peeling condition of the printer, and ensure the normal operation of the printer.
Fig. 5 is a schematic structural diagram of a detection threshold setting device according to an embodiment of the present invention, and as shown in fig. 5, the detection threshold setting device includes:
the level obtaining module 510 is configured to determine a misjudgment value of a transistor on a printer, and obtain a paper-containing average level and a paper-free average level of the printer within a preset time;
a level determining module 520, configured to determine whether the paper-present average level is in a misjudgment interval corresponding to the misjudgment value;
a section determining module 530, configured to determine whether the transistor is in an amplification section when the paper average level is in a misjudgment section corresponding to the misjudgment value;
a detection determining module 540, configured to determine a target detection level of the transistor according to the paper-present average level, the paper-absent average level, and the misjudgment value when the transistor is in an amplification range, and set the target detection level as a detection threshold of a label peeling state of the printer.
In an embodiment, the determining whether the paper-present average level is in the erroneous judgment interval corresponding to the erroneous judgment value by the level determining module 520 includes:
determining a misjudgment interval corresponding to the misjudgment value according to the misjudgment value and the initial detection level of the transistor;
and determining whether the paper average level is in the erroneous judgment interval.
In one embodiment, the detection determining module 540 determines the target detection level of the transistor according to the paper average level, the paper-out average level and the false positive value, and includes:
determining whether the misjudgment interval falls into a detection interval corresponding to the paper mean level and the paper-free mean level;
and when the misjudgment interval falls into a detection interval corresponding to the paper average level and the paper-free average level, calculating the target detection level according to the paper average level and the paper-free average level.
In one embodiment, the detecting determining module 540 calculates the target detecting level according to the paper average level and the paper-free average level, including:
and determining the sum of the paper average level and the paper-free average level, and halving the sum of the paper average level and the paper-free average level to obtain the target detection level.
In one embodiment, after the detecting and determining module 540 divides the sum of the paper average level and the paper-free average level into two halves to obtain the target detecting level, the method further includes:
determining whether a difference value between the paper-present average level and the paper-absent average level is less than the erroneous judgment value;
and when the difference value between the paper average level and the paper-free average level is smaller than the misjudgment value, starting a fault early warning mechanism of the printer.
In one embodiment, the interval determining module 530 determines whether the transistor is in the amplification interval, and further comprises:
determining a difference between said paper level and said no paper level when said transistor is in a cutoff interval;
determining whether the difference value between the paper average level and the paper-free average level meets a preset detection level calculation condition;
and when the difference value of the paper average level and the paper-free average level accords with a preset detection level calculation condition, calculating the target detection level according to the paper average level and the paper-free average level.
In one embodiment, the interval determining module 530 determines whether the transistor is in an amplification interval, including:
acquiring an emission node voltage and a starting voltage of the transistor, and determining whether the emission node voltage is greater than the starting voltage;
and when the voltage of the emission node is greater than the starting voltage and the collector junction of the transistor is reversely biased, determining that the transistor is in the amplification interval.
The device provided by the embodiment of the invention determines the misjudgment value of the transistor on the printer and acquires the paper average level and the paper-free average level of the printer within the preset time; determining whether the paper average value level is in a misjudgment interval corresponding to the misjudgment value; when the paper mean level is in the misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in the amplification interval; when the transistor is in the amplification region, determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value, and setting the target detection level as a detection threshold value of the label peeling state of the printer. That is, in the embodiment of the present invention, whether the detection interval corresponding to the transistor is shifted or not is determined by setting the erroneous judgment value, the erroneous judgment interval, the paper-containing average level, and the paper-free average level of the transistor on the printer, so as to determine the detection level corresponding to the current printer, accurately determine the label peeling condition of the printer, and ensure the normal operation of the printer.
Fig. 6 is a schematic structural diagram of a printer according to an embodiment of the present invention. FIG. 6 illustrates a block diagram of an exemplary printer 12 suitable for use in implementing embodiments of the present invention. The printer 12 shown in fig. 6 is only an example, and should not bring any limitation to the function and the range of use of the embodiment of the present invention.
As shown in FIG. 6, printer 12 is in the form of a general purpose computing device. The components of printer 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and/or cache memory 32. Printer 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 6, and commonly referred to as a "hard drive"). Although not shown in FIG. 6, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processing unit 16 executes various functional applications and data processing by running the program stored in the system memory 28, for example, implementing the detection threshold setting method provided by the embodiment of the present invention, the method includes:
determining a misjudgment value of a transistor on a printer, and acquiring a paper average value level and a paper-free average value level of the printer within a preset time;
determining whether the paper average value level is in a misjudgment interval corresponding to the misjudgment value;
when the paper average level is in a misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in an amplification interval;
when the transistor is in an amplification interval, determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value, and setting the target detection level as a detection threshold value of a label peeling state of the printer.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for setting the detection threshold, and the method includes:
determining a misjudgment value of a transistor on a printer, and acquiring a paper average value level and a paper-free average value level of the printer within preset time;
determining whether the paper average level is in a misjudgment interval corresponding to the misjudgment value;
when the paper average level is in a misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in an amplification interval;
when the transistor is in an amplification interval, determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value, and setting the target detection level as a detection threshold value of a label peeling state of the printer.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C + +, or the like, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A detection threshold setting method is characterized by comprising the following steps:
determining a misjudgment value of a transistor on a printer, and acquiring a paper average value level and a paper-free average value level of the printer within a preset time;
determining whether the paper average value level is in a misjudgment interval corresponding to the misjudgment value;
when the paper average level is in a misjudgment interval corresponding to the misjudgment value, determining whether the transistor is in an amplification interval;
when the transistor is in an amplification zone, determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value, and setting the target detection level as a detection threshold value of a label peeling state of the printer.
2. The method of claim 1, wherein determining whether the paper-present average level is in a false positive interval corresponding to the false positive value comprises:
determining a misjudgment interval corresponding to the misjudgment value according to the misjudgment value and the initial detection level of the transistor;
and determining whether the paper average level is in the erroneous judgment interval.
3. The method of claim 1, wherein determining a target detection level for the transistor based on the paper-present average level, the paper-absent average level, and the false positive value comprises:
determining whether the misjudgment interval falls into a detection interval corresponding to the paper mean level and the paper-free mean level;
and when the misjudgment interval falls into a detection interval corresponding to the paper average level and the paper-free average level, calculating the target detection level according to the paper average level and the paper-free average level.
4. The method of claim 3, wherein calculating the target detection level based on the paper-in-average level and the paper-out-of-average level comprises:
and determining the sum of the paper average level and the paper-free average level, and halving the sum of the paper average level and the paper-free average level to obtain the target detection level.
5. The method of claim 4, wherein after halving a sum of the paper-present average level and the paper-absent average level to obtain the target detection level, further comprising:
determining whether a difference value between the paper-present average level and the paper-absent average level is less than the erroneous judgment value;
and when the difference value between the paper average level and the paper-free average level is smaller than the misjudgment value, starting a fault early warning mechanism of the printer.
6. The method of claim 1, wherein determining whether the transistor is in an amplification region further comprises:
determining a difference between the paper mean level and the paper-out mean level when the transistor is in a cutoff interval;
determining whether the difference value of the paper average value level and the paper-free average value level accords with a preset detection level calculation condition;
and when the difference value of the paper average level and the paper-free average level meets the preset detection level calculation condition, calculating the target detection level according to the paper average level and the paper-free average level.
7. The method of claim 1, wherein determining whether the transistor is in an amplification region comprises:
acquiring an emission node voltage and a starting voltage of the transistor, and determining whether the emission node voltage is greater than the starting voltage;
and when the voltage of the emission node is greater than the starting voltage and the collector junction of the transistor is reversely biased, determining that the transistor is in the amplification interval.
8. A detection threshold setting apparatus, comprising:
the level acquisition module is used for determining the misjudgment value of a transistor on the printer and acquiring the paper average level and the paper-free average level of the printer within preset time;
the level determining module is used for determining whether the paper average level is in a misjudgment interval corresponding to the misjudgment value;
the interval determining module is used for determining whether the transistor is in an amplifying interval or not when the paper average level is in a misjudgment interval corresponding to the misjudgment value;
and the detection determining module is used for determining a target detection level of the transistor according to the paper average level, the paper-free average level and the misjudgment value when the transistor is in an amplification section, and setting the target detection level as a detection threshold value of the label peeling state of the printer.
9. A printer, characterized in that the printer comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the detection threshold setting method of any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, the program, when being executed by a processor, implementing a detection threshold setting method according to any one of claims 1 to 7.
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