CN104494317A - Apparatus and method for automatically adjusting heating time of thermo-sensitive printer - Google Patents
Apparatus and method for automatically adjusting heating time of thermo-sensitive printer Download PDFInfo
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- CN104494317A CN104494317A CN201410699311.1A CN201410699311A CN104494317A CN 104494317 A CN104494317 A CN 104494317A CN 201410699311 A CN201410699311 A CN 201410699311A CN 104494317 A CN104494317 A CN 104494317A
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Abstract
The invention relates to the field of a printer, and especially relates to an apparatus and method for automatically adjusting the heating time of a thermo-sensitive printer. The apparatus comprises an environment temperature acquisition unit and a master control unit. The master control unit, according to acquired environment temperature information and an environment temperature and heating time corresponding relation look-up table, carries out seeking and coupling to obtain the heating time, and a programming logic device, according to heating time signals, outputs heating enabling signals to a thermo-sensitive head. According to the apparatus and method for automatically adjusting the heating time of the thermo-sensitive printer, through real-time acquisition of the temperature of a current working environment and the temperature of the thermo-sensitive head and determination of the printing state of a current printer, the most proper heating time when the thermo-sensitive printer begins printing at a current temperature is obtained, such that the printing effect is improved, and the life of the thermo-sensitive head can be prolonged.
Description
Technical field
the present invention relates to electrocardiograph field, particularly relate to the device and method of a kind of automatic adjustment thermal printer heat time.
Background technology
current thermal printer has been widely used in medicine equipment as electrocardiograph etc.Because thermal printer has the advantages such as noise is low, speed is fast, reliability is high, printable character is clear, miniaturized, so have also been obtained extensive use on medical Instrument field, be mainly used in printing and detect data, waveform etc.
thermal printer general principle is that host device processor sends to thermal printer by needing the data printed, thermal printer is converted into thermal head dot matrix signal after receiving data, and then control the temperature responsive unit heating of thermal head, the corresponding picture and text of heat susceptible coating heating display on heat-sensitive paper.
the heating means using electrocardiogram thermal printer to adopt in the industry at present adopt the fixing heat time, namely only considered the heat time under normal temperature condition, or select the heat time by the thermistor that thermal head carries.When such equipment uses under low temperature, hot environment, will have problems.
when equipment uses at low ambient temperatures, when thermal head temperature is lower than itself minimum operating temperature, because hot spot temperature is lower when heating first, cause the problem that the picture and text showing of printing initial segment is very fuzzy.
when equipment uses at low ambient temperatures, if adopt normal temperature same heat time, now, the temperature of heat-sensitive paper coating layer touch just reducing to a certain degree, the picture and text printed like this are also corresponding to have shoaled, if the thermistor that thermal head adopts body to carry carrys out detected temperatures, the temperature of the body of thermal head then can only be detected, the environment temperature residing for paper cannot be detected, such adjustment heat time out only prints when equipment is just started shooting effectively, along with printing repeatedly repeatedly, the temperature of thermal head body rises, now there is obvious difference with the environment temperature residing for paper, and regulate the thermal head heat time out just cannot meet the demands, the picture and text printed also can correspondingly shoal, check that detecting data also brings a lot of inconvenience to doctor.
the control mode of existing thermal printer heat time is divided into following several: 1. the fixing heat time controls: no matter under thermal printer is operated in which kind of pattern and environment, the heat time is all constant and unadjustable; 2. the heat time of thermal printer is regulated according to the temperature dynamic of fever head sheet in thermal printer; 3. determine the preliminary heat time according to thermal printer mode of operation, and carry out dynamic adjustments according to fever head sheet temperature.In above 3 kinds of modes, mode 1 is fixed unadjustable due to its heat time, therefore the too high fever head sheet that causes of thermal head fever head sheet Yin Wendu can be caused to burn out.Mode 2,3 have larger improvement compared with mode 1, but when the condition such as low temperature that ambient conditions is severe, print partially light when then there will be just start printing, in the event of high temperatures, then can cause thermal head superheated, and then shorten the service life of thermal head.Existing thermal printer heat time adjusting device as shown in Figure 1.
when equipment uses in high temperature environments; the heat time that thermal head adopts normal temperature same; now, the temperature of heat-sensitive paper coating layer touch is by rising to a certain degree, and the picture and text printed like this are also corresponding have been deepened; because environment temperature is higher; in addition it is constant that the temperature remains within the normal range the thermal head heat time, and print the waveform same with normal temperature like this, the temperature of thermal head becomes higher; more easily enter overtemperature protection, the equipment time-write interval is shortened.The print procedure of whole hot environment just there will be: print picture and text excessively dark, repeatedly occur that printing one section enters again the action of protection, and the actual effect used of impact, equipment reduces the quantity that doctor checks patient, have impact on working doctor efficiency.
and in electrocardio field, the frequency response test of calibration voltage detection and electrocardiograph usually can be carried out.Especially the frequency response test of electrocardiograph; this testing standard is that the frequency range arranged electrocardiograph wave filter carries out test as 0.05 to 150Hz; when the signal frequency of testing is greater than 75hz, be easy to occur because the overcurrent protection of thermal head working power occurs printing disconnection phenomenon.In order to solve this problem, being all that namely the load capacity improving thermal head working power improves thermal head working power power output usually, adding hardware cost like this, may still occur this printing intermittent problem because of the discreteness of thermal head simultaneously.
to sum up, immature due to conventional art, the heat time of thermal printer does not regulate accordingly for the change of environment temperature, under causing low temperature environment, prints picture and text fuzzy, unintelligible, affects doctor and check detection data; In high temperature environments, print picture and text comparatively dark, thermal head temperature is too high, comparatively fast enters overtemperature protection, affects the quantity that doctor uses equipment inspection patient, affects the operating efficiency of doctor.
Summary of the invention
for overcoming above-mentioned defect, namely object of the present invention is the device and method providing a kind of automatic adjustment thermal printer heat time.
the device of automatic adjustment thermal printer heat time, this device is arranged on thermal printer, comprising:
temperature collection unit, obtains ambient temperature information for carrying out Real-time Collection to environment temperature;
main control unit, described master control is alone in judging the print state that printer is current, if printer is current be not in print state, then gathers ambient temperature information according to described temperature collection unit and to carry out with default environment temperature and heat time corresponding relation look-up table searching, mate and obtained for the first heat time; And export the first heat time signal.
further comprising, thermal head temperature collecting cell, obtaining thermal head temperature information for carrying out Real-time Collection to thermal head temperature; If main control unit judges that printer is current be in print state, then described main control unit carries out contrasting according to the thermal head temperature information of described thermal head temperature collecting cell collection and the thermal head temperature predetermined threshold value preset, mates and obtained for the second heat time; And export the second heat time signal.
further also comprise, thermal head VRM Voltage Regulator Module, for the adjustment of thermal printer thermal head operating voltage and output; Printing is counted statistic unit, adds up for counting to printing; The print point numerical value of described main control unit to the needs heating of statistics judges, to count threshold value, then keep thermal head operating voltage constant and exported for the 4th heat time if print point numerical value is less than default printing; If print point numerical value is greater than default printing and counts threshold value, then regulate the operating voltage of thermal head, and calculated for the 3rd heat time according to the operating voltage after adjustment.
concrete, described 4th heat time comprises, if thermal printer is not in print state, then this 4th heat time was for the first heat time; If thermal printer is in print state, and thermal head temperature does not exceed overtemperature protection temperature value, then now the 4th heat time was the second heat time.
concrete, described second heat time signal comprises, and exports stop heating signal when judging that thermal head temperature exceeds default overtemperature protection temperature value; Export contrast when thermal head temperature does not exceed overtemperature protection temperature value, mate the second heat time signal obtained.
the method of automatic adjustment thermal printer heat time, comprises the steps:
i. gather environment temperature;
iI. judge the print state that printer is current;
.
if printer is current be not in print state, then gathers ambient temperature information according to described temperature collection unit and to carry out with built-in environment temperature and heat time corresponding relation look-up table searching, mate and obtained for the first heat time; And export the first heat time signal.
further, in described step
also comprise the steps:
if A. printer is current be in print state, then gather thermal head temperature;
b. thermal head temperature and built-in thermal head temperature predetermined threshold value carried out contrasting, mate and obtained for the second heat time; And export the second heat time signal.
further, in described step
also comprise the steps: afterwards
a. carry out statistics obtain print point numerical value to needing the printing of heating to count;
b. the print point numerical value of the needs heating of statistics is judged, the print point numerical value if desired heated be less than default printing count threshold value time, then keep the former heat time and thermal head operating voltage constant and export the 4th heat time signal;
c. the print point numerical value if desired heated be greater than printing count threshold value time, then regulate the operating voltage of thermal head, and calculated for the 3rd heat time according to present operating voltage, and export the 3rd heat time signal.
concrete, described 4th heat time comprises, if thermal printer is not in print state, then this 4th heat time was for the first heat time; If thermal printer is in print state, and thermal head temperature does not exceed overtemperature protection temperature value, then now the 4th heat time was the second heat time.
concrete, described second heat time signal comprises, and exports stop heating signal when judging that thermal head temperature exceeds default overtemperature protection temperature value; Export contrast when thermal head temperature does not exceed overtemperature protection temperature value, mate the second heat time signal obtained.
The device and method of a kind of automatic adjustment thermal printer heat time of the present invention, by carrying out Real-time Collection to the temperature of current operating environment, with the judgement to current printer print state, thus optimal heat time when thermal printer starts to print under drawing Current Temperatures.The present invention considers that the heat time depends primarily on the current temperature of thermal head, when firm start, impact (impact of too low or too high temperature) due to environment temperature can cause thermal printing paper to add heat sensitivity changing, environment temperature is adopted to replace the temperature of thermal head during firm start, solve when the condition such as low temperature that ambient conditions is severe, print partially light when then there will be just start printing, in the event of high temperatures, then can cause thermal head superheated, and then the problem in the service life of shortening thermal head.
Accompanying drawing explanation
for ease of illustrating, the present invention is described in detail by following preferred embodiment and accompanying drawing.
fig. 1 is existing thermal printer heat time adjusting device principle schematic;
fig. 2 is thermal printer heat time adjusting device principle schematic of the present invention;
fig. 3 is the concrete enforcement schematic diagram of thermal printer heat time adjusting device of the present invention;
fig. 4 is thermal printer heat time control method flow chart of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The present invention is applicable to medical instruments field, is applicable to the printing of electrocardiogram report especially.
The device of the present invention's a kind of automatic adjustment thermal printer heat time, this device is arranged on thermal printer 7, in the process determining thermal printer 7 heat time, heat time depends primarily on the current temperature of thermal head, but when considering just start, impact (impact of too low or too high temperature) due to environment temperature can cause thermal printing paper to add heat sensitivity changing, and thermal printer 7 now adopts environment temperature to replace the temperature of thermal head.This device comprises:
Temperature collection unit 1, described temperature collection unit 1 is connected with main control unit 3, for gathering environment temperature and the ambient temperature information of collection being sent to main control unit 3.
Main control unit 3, described main control unit 3 is provided with environment temperature and heat time corresponding relation look-up table; For judging the print state that printer 7 is current, if printer 7 is current be not in print state, then gathers ambient temperature information according to described temperature collection unit 1 and carry out searching with the environment temperature preset and heat time corresponding relation look-up table, mate and obtained for the first heat time.
The first heat time that main control unit 3 obtains according to contrast, coupling exports the first heat time signal.
PLD 4, for exporting the control of thermal printer 7 heat time and heating signal, exports heating enable signal to thermal head according to the heat time signal that main control unit 3 sends.
As a kind of preferred version of the device of the present invention's a kind of automatic adjustment thermal printer heat time, as shown in Figure 2, this device comprises:
Thermal head temperature collecting cell 6, described thermal head temperature collecting cell 6 is connected with main control unit 3, for carrying out Real-time Collection to thermal head temperature and the thermal head temperature information of collection being sent to main control unit 3, in case thermal head overheated cause thermal head damage and on fire.
Temperature collection unit 1, described temperature collection unit 1 is connected with main control unit 3, for gathering environment temperature and the ambient temperature information of collection being sent to main control unit 3.
main control unit 3, described main control unit 3 comprises:
Also comprise, print and to count statistic unit, described printing statistic unit of counting is connected with main control unit 3, for adding up printing to count and the print point numerical value of statistics is sent to main control unit 3.
described main control unit 3 is for judging the print state that printer 7 is current, if printer 7 is current be not in print state, then gathers ambient temperature information according to described temperature collection unit 1 and carry out searching with the environment temperature preset and heat time corresponding relation look-up table, mate and obtained for the first heat time; And export the first heat time signal.If printer 7 is current be in print state, then judge whether thermal head temperature exceeds default overtemperature protection temperature value; If thermal head temperature exceeds overtemperature protection temperature value export stopping heating signal; If thermal head temperature does not exceed overtemperature protection temperature value; the thermal head temperature information then gathered according to described thermal head temperature collecting cell 6 carries out with default thermal head temperature predetermined threshold value contrasting, mate and obtained for the second heat time, and exports the second heat time signal.
further, described main control unit to statistics needs heating print point numerical value judge, when need heating print point numerical value be less than default printing count threshold value N1 time, obtain the 4th heat time TH4.Described 4th heat time TH4, if now thermal printer is not in print state, then this 4th heat time TH4 is the first heat time TH1, and thermal head operating voltage remains unchanged simultaneously; If now thermal printer is in print state, and thermal head temperature does not exceed overtemperature protection temperature value, then now the 4th heat time TH4 is the second heat time TH2, and thermal head operating voltage remains unchanged simultaneously.If print point numerical value is greater than default printing and counts threshold value, then regulate the operating voltage of thermal head, and calculated for the 3rd heat time according to the operating voltage after regulating; And regulate after operating voltage and the 3rd heat time signal.
PLD 4, to control and the heating signal output of thermal printer 7 heat time, exports heating enable signal to thermal head according to the heat time signal that main control unit 3 sends.
Thermal head VRM Voltage Regulator Module 5, described thermal head VRM Voltage Regulator Module 5 is for the adjustment of thermal printer 7 thermal head operating voltage and output.
Also comprise user interface section 2, described user interface section 2 is for realizing the setting of startup to thermal printer, stopping and thermal printer 7 mode of operation.
the thermal head power supply of general thermal printer adopts DC-DC power source to realize; usual DC-DC power source inside is provided with over-current protection point and overtemperature protection point; the overcurrent protection of DC-DC module can be triggered when overload; output voltage closedown and thermal head operating voltage is caused to be closed; and then cause thermal printer to heat, occur printing and interrupt or disconnection phenomenon.When thermal printer need to heat simultaneously count more time, its electric current needed is comparatively large, therefore is easy to cause thermal head working power to occur overcurrent protection, causes printing interrupted.Therefore by adding up counting of thermal printer heating; when thermal head needs the information content of heating more; by the voltage of adjustment thermal head working power, reduce load current, thus thermal printer can be avoided interrupted because the overcurrent protection of thermal head working power causes printing.Simultaneously while adjustment thermal head operating voltage, adjust the heat time of thermal head according to the operating voltage of current thermal printer, avoid thermal head long period work at higher operating voltages, thus the service life of thermal head can be extended.By to heating the statistics of counting, by adjusting operating voltage and the working time of thermal head, can low cost, solve this problem very easily.
As shown in Figure 3, thermal head operating voltage adjustment module 5 comprises power MOS pipe, DC-DC module.Thermal head operating voltage is provided by DC-DC module 10, and conventional DC-DC module 10 has overcurrent and overtemperature protection.Main control unit 3 realizes the adjustment to thermal head operating voltage by metal-oxide-semiconductor 8, to reach the object of overcurrent protection.Normal conditions set by divider resistance the output voltage exporting DC-DC power source; Namely increase a resistance and metal-oxide-semiconductor 8 ground connection of connecting at DC-DC power source feedback output end to realize and the parallel connection of former feedback resistance, when normal print, metal-oxide-semiconductor disconnects, when need heating print point numerical value exceed default printing count threshold value N1 time, MCU by opening metal-oxide-semiconductor, and then realizes the in parallel of feedback output end resistance R2 and resistance R3, by the adjustment to feedback output end resistance sizes, and then realize the ratio of output voltage divider resistance, thus realize the adjustment to thermal head operating voltage.Wherein the adjustable range of thermal head operating voltage sets in strict accordance with the operating voltage range of thermal printer 7 thermal head, PLD 4 is according to the current thermal head operating voltage of the condition adjudgement of current I/O, and according to the heat time signal that main control unit 3 inputs, export the heat time of current thermal head voltage and correspondence.
The working method of the present embodiment is:
Temperature collection and process also set initial heating time.
User arranges thermal printer 7 mode of operation by user interface 2 and starts thermal printer 7, and temperature collection unit 1 gathers the environment temperature T1 of current thermal printer 7 working environment, and main control unit 3 reads current ambient temperature information by ADC interface.Main control unit 3 obtains the first preliminary heat time TH1 according to the ambient temperature information collected.This concrete mode obtaining the first heat time TH1 quantizes the temperature information collected, and sorts out, coding, and according to built-in environment temperature and heat time corresponding relation look-up table, obtain the first preliminary heat time TH1.
Just starting in the process printing and print, needing the information of real-time transmission needs printing to printer.To in the process needing the data volume printed to add up, need the real-time adjustment heat time.The duty of main control unit 3 to current thermal printer 7 judges, namely judges that current PLD 4 heats the state of enable signal.If printer is current be not in print state, then the first heat time signal TH1 is sent to PLD 4, PLD 4 exports the first heating enable signal according to the first heat time signal and prints to thermal head.
If printer is in print state, gather thermal head temperature T2, main control unit 3 is according to current environmental temperature T1 and thermal head temperature T2, quantize, sort out, coding, and according to built-in according to current environmental temperature T1 and thermal head temperature T2 and heat time corresponding relation look-up table, determine that the second heat time of thermal printer 7 is TH2.
This second heat time TH2, specifically comprises: described second heat time signal comprises, and exports stop heating signal when judging that thermal head temperature exceeds default overtemperature protection temperature value; Export contrast when thermal head temperature does not exceed overtemperature protection temperature value, mate the second heat time signal obtained.By judging whether T2 exceeds default overtemperature protection temperature value TP to thermal head temperature T2 process; when the thermal head temperature T2 that thermal head temperature collecting cell 6 collects exceedes overtemperature protection temperature value TP; main control unit 3 turns off by I/O the output that namely metal-oxide-semiconductor 9 closes DC-DC module 10; thus cut off thermal head power supply, the thermal head heat time is set to 0 by PLD 4 simultaneously.
Further, main control unit 3 sends the information needing to print to thermal printer 7 by data wire, prints statistic unit of counting and is connected with main control unit 3, counts add up and the print point numerical value of statistics is sent to main control unit 3 printing.And be handled as follows printing point value: printing counts needs the printing of heating to count in statistic unit 1 row to add up, the information content of thermal printer 7 is sent to judge according to current MCU, when send data in need heat count be less than default printing count threshold value N1 time, obtain the 4th heat time TH4.Described 4th heat time TH4, if now thermal printer is not in print state, then this 4th heat time TH4 is the first heat time TH1, and thermal head operating voltage remains unchanged simultaneously; If now thermal printer is in print state, and thermal head temperature does not exceed overtemperature protection temperature value, then now the 4th heat time TH4 is the second heat time TH2, and thermal head operating voltage remains unchanged simultaneously.
When threshold value N1 is counted in the printing that is more than or equal to setting of counting needing in the data sent to heat, main control unit 3 controls the unlatching of metal-oxide-semiconductor 8 by I/O, regulate the operating voltage of thermal head, PLD 4 is according to the second heat time signal TH2 and the current thermal head operating voltage control signal determined simultaneously, and arranging thermal printer 7 the 3rd heat time is TH3.PLD 4 exports the heat time and starts heating.
Specific embodiment of the invention method is: a kind of method providing automatic adjustment thermal printer heat time, comprises the steps:
Gather environment temperature;
Judge the print state that printer is current;
If printer is current be not in print state, then gathers ambient temperature information according to described temperature collection unit and to carry out with built-in environment temperature and heat time corresponding relation look-up table searching, mate and obtain the first heat time TH1; And export the first heat time signal;
Export heating enable signal according to heat time signal to print to thermal head.
As a kind of preferred version of the method for the present invention's a kind of automatic adjustment thermal printer heat time, as shown in Figure 4, the method comprises:
Gather environment temperature; Environment temperature is quantized, sorts out, coding;
Judge the print state that printer is current;
If printer is current be not in print state, then gathers ambient temperature information according to described temperature collection unit and to carry out with built-in environment temperature and heat time corresponding relation look-up table searching, mate and obtain the first heat time TH1; And export the first heat time signal.
If printer is current be in print state, then gather thermal head temperature; By quantizing thermal head temperature, sort out, coding also carries out contrasting according to built-in thermal head temperature predetermined threshold value, mates and obtain the first heat time TH2; And export the second heat time signal.Described second heat time signal comprises, and exports stop heating signal when judging that thermal head temperature exceeds default overtemperature protection temperature value; Export contrast when thermal head temperature does not exceed overtemperature protection temperature value, mate the second heat time signal obtained.
Further, carry out statistics obtain print point numerical value to needing the printing of heating to count; And the print point numerical value of the needs heating of statistics is judged;
When send data in need heat count be less than default printing count threshold value N1 time, obtain the 4th heat time TH4.Described 4th heat time TH4, if now thermal printer is not in print state, then this 4th heat time TH4 is the first heat time TH1, and thermal head operating voltage remains unchanged simultaneously; If now thermal printer is in print state, and thermal head temperature does not exceed overtemperature protection temperature value, then now the 4th heat time TH4 is the second heat time TH2, and thermal head operating voltage remains unchanged simultaneously.If desired the print point numerical value heated be more than or equal to printing count threshold value N1 time, then regulate the operating voltage of thermal head, and calculate the 3rd heat time TH3 according to present operating voltage; And operating voltage after Drazin inverse and the 3rd heat time signal.
Export heating enable signal according to heat time signal to print to thermal head.
Concrete, this first heat time certainly can by empirical value list as mode and the acquisitions of other known manner such as statistics by experiment, and the defining method that the invention provides a kind of first heat time TH1 is as follows:
The principle of heating of thermal printer 7 is exactly that the thermal head fever head sheet heat susceptible coating that heats corresponding heat-sensitive paper by heating realizes printing.Therefore thermal printer 7 heats a some institute energy requirement can state with following formula:
(1)
Wherein E heats energy required for a point for thermal printer;
for the sensitivity coefficient of thermal printing paper, it is mainly relevant with the susceptibility of heat susceptible coating on heat-sensitive paper, can regard a constant here as,
value be usually more than or equal to 1;
the thermal printer when normal temperature 25 DEG C provided for thermal printer specifications heats the energy that a point needs.
for thermal printer temperature coefficient;
for the temperature value collected.Wherein
,
,
can see corresponding thermal printer specifications etc. parameter.
Meanwhile, the principle of heating due to thermal printer 7 is heated thermal printing paper by thermal head fever head sheet, and fever head sheet equivalent resistance R represents.Therefore according to the equivalent resistance model of fever head sheet, its catabiotic formula:
(2)
In formula (2), E is the energy that heating point needs; R is the internal resistance of thermal printer fever head sheet, and concrete specification can with reference to thermal printer specifications; I is thermal printer fever head sheet operating current;
for thermal printer thermal head operating voltage;
for the thermal printer heat time.
Can be obtained by formula (1) and formula (2): the thermal printer heat time
for:
(3)
Formula (3) the i.e. relation of thermal printer heat time and thermal head temperature and thermal head operating voltage.Consider when just starting shooting, under low temperature or high-temperature condition environment, the sensitivity coefficient of thermal printing paper such as to change at the impact of factor, therefore thermal printer 7 adopts environment temperature to replace thermal head temperature when just start prints.After machine starts normal print, thermal head temperature is adopted to replace environment temperature.According to above-mentioned formula, and according to the operating voltage of current thermal printer, an initial first heat time TH1 can be calculated.
Namely
(4)
This second heat time certainly can by empirical value list as the modes such as statistics by experiment and the acquisition of other known manner, and the defining method that the invention provides a kind of second heat time TH2 is as follows:
Can obtain according to formula (3) and (4),
(5)
3rd heat time certainly can by empirical value list as the modes such as statistics by experiment and the acquisition of other known manner, and the determination mode that the invention provides a kind of 3rd heat time TH3 is as follows:
Main control unit 3, according to the thermal head operating voltage after adjustment, calculates the thermal printer 7 heat time TH3 of correspondence under present operating voltage by formula (3) and (5).
(6)
In formula (6)
for current thermal head operating voltage,
for adjusting the operating voltage of front thermal head.Due to
be a steady state value, so time thermal head heat time TH3 on the basis of TH2 along with
increase and reduce.
Specific implementation process is as follows: before printing starts, temperature collection unit 1 first gathers current thermal printer 7 operating ambient temperature T1, by the ambient temperature value T1 that collects stored in internal memory, and from the look-up table that environmentally temperature and heat time mapping relations are set up in advance, obtain the first initial heat time TH1 according to this ambient temperature value.
Main control unit 3 then judges the duty of current thermal printer 7, if do not print, it is TH1 that main control unit 3 arranges thermal printer first heat time, main control unit 3 is added up needing the printing of heating to count in 1 row simultaneously, if desired the points N heated be greater than the default printing arranged in main control unit 3 software count threshold value N1 time, main control unit 3 is regulated thermal head operating voltage by I/O mouth driven MOS pipe, and according to the 3rd heat time TH3 of current thermal head operating voltage and thermal head temperature determination thermal printer 7.If when needing the data volume N heated to be less than over-current protection point N1 in 1 row, main control unit 3 does not regulate the operating voltage of thermal head, the heat time of thermal printer 7 is TH1 simultaneously;
If current thermal printer prints, main control unit 3 then starts the temperature value T2 gathering current thermal head; the overtemperature protection temperature value TP of current thermal head temperature T2 and setting contrasts by main control unit 3; if thermal head temperature T2 is higher than overtemperature protection temperature value TP; then main control unit 3 is exported by I/O and stops heating signal to PLD 4, and simultaneously main control unit 3 turns off metal-oxide-semiconductor 9 namely to arrange thermal head operating voltage be 0.If thermal head temperature T2 is less than overtemperature protection temperature value TP; environmentally temperature and thermal head temperature arrange the thermal printer heat time to main control unit 3 is TH2; main control unit 3 is added up needing the data volume heated in 1 row simultaneously; if desired when the points N heated is greater than the over-current protection point N1 arranged in main control unit 3 software; main control unit 3 is regulated thermal head operating voltage by I/O mouth driven MOS pipe, and according to the heat time TH3 of current thermal head operating voltage and thermal head temperature determination thermal printer 7.If when needing the data volume N heated to be less than over-current protection point N1 in 1 row, main control unit 3 does not regulate the operating voltage of thermal head, simultaneously the heat time TH2 of thermal printer 7.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all do in the spirit and principles in the present invention any amendment, equivalent to replace and improvement etc., all should be included in protection scope of the present invention.
Claims (10)
1. automatically regulate the device of thermal printer heat time, this device is arranged on thermal printer, it is characterized in that, comprising:
Temperature collection unit, obtains ambient temperature information for carrying out Real-time Collection to environment temperature;
Main control unit, described master control is alone in judging the print state that printer is current, if printer is current be not in print state, then gathers ambient temperature information according to described temperature collection unit and to carry out with default environment temperature and heat time corresponding relation look-up table searching, mate and obtained for the first heat time; And export the first heat time signal.
2. the device automatically regulating the thermal printer heat time as claimed in claim 1, is characterized in that, also comprises, thermal head temperature collecting cell, obtaining thermal head temperature information for carrying out Real-time Collection to thermal head temperature; If main control unit judges that printer is current be in print state, then described main control unit carries out contrasting according to the thermal head temperature information of described thermal head temperature collecting cell collection and the thermal head temperature predetermined threshold value preset, mates and obtained for the second heat time; And export the second heat time signal.
3. the as claimed in claim 1 or 2 device automatically regulating the thermal printer heat time, is characterized in that, also comprise, thermal head VRM Voltage Regulator Module, for the adjustment of thermal printer thermal head operating voltage and output; Printing is counted statistic unit, adds up for counting to printing; The print point numerical value of described main control unit to the needs heating of statistics judges, to count threshold value, then keep thermal head operating voltage constant and exported for the 4th heat time if print point numerical value is less than default printing; If print point numerical value is greater than default printing and counts threshold value, then regulate the operating voltage of thermal head, and calculated for the 3rd heat time according to the operating voltage after adjustment.
4. the device automatically regulating the thermal printer heat time as claimed in claim 3, it is characterized in that, described 4th heat time comprises, if thermal printer is not in print state, then this 4th heat time was for the first heat time; If thermal printer is in print state, and thermal head temperature does not exceed overtemperature protection temperature value, then now the 4th heat time was the second heat time.
5. the device automatically regulating the thermal printer heat time as claimed in claim 2, it is characterized in that, described second heat time signal comprises, and exports stop heating signal when judging that thermal head temperature exceeds default overtemperature protection temperature value; Export contrast when thermal head temperature does not exceed overtemperature protection temperature value, mate the second heat time signal obtained.
6. automatically regulate the method for thermal printer heat time, it is characterized in that, comprise the steps:
I. gather environment temperature;
II. judge the print state that printer is current;
. if printer is current is not in print state, then gather ambient temperature information according to described temperature collection unit and to carry out with default environment temperature and heat time corresponding relation look-up table searching, mate and obtained for the first heat time; And export the first heat time signal.
7. the method automatically regulating the thermal printer heat time as claimed in claim 6, is characterized in that, in described step
also comprise the steps:
If A. printer is current be in print state, then gather thermal head temperature;
B. thermal head temperature and built-in thermal head temperature predetermined threshold value carried out contrasting, mate and obtained for the second heat time; And export the second heat time signal.
8.. the method for automatic adjustment thermal printer heat time as claimed in claims 6 or 7, is characterized in that, in described step
also comprise the steps: afterwards
A. carry out statistics obtain print point numerical value to needing the printing of heating to count;
B. the print point numerical value of the needs heating of statistics is judged, the print point numerical value if desired heated be less than default printing count threshold value time, then keep the former heat time and thermal head operating voltage constant and export the 4th heat time signal;
C. the print point numerical value if desired heated be greater than printing count threshold value time, then regulate the operating voltage of thermal head, and calculated for the 3rd heat time according to present operating voltage, and export the 3rd heat time signal.
9. the method automatically regulating the thermal printer heat time as claimed in claim 8, it is characterized in that, described 4th heat time comprises, if thermal printer is not in print state, then this 4th heat time was for the first heat time; If thermal printer is in print state, and thermal head temperature does not exceed overtemperature protection temperature value, then now the 4th heat time was the second heat time.
10. the method automatically regulating the thermal printer heat time as claimed in claim 9, it is characterized in that, described second heat time signal comprises, and exports stop heating signal when judging that thermal head temperature exceeds default overtemperature protection temperature value; Export contrast when thermal head temperature does not exceed overtemperature protection temperature value, mate the second heat time signal obtained.
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|---|---|---|---|---|
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| CN105082795A (en) * | 2015-08-24 | 2015-11-25 | 福建联迪商用设备有限公司 | Printing control method and system for thermal printer and electronic payment terminal |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000218844A (en) * | 1999-02-01 | 2000-08-08 | Star Micronics Co Ltd | Method for controlling temperature of thermal head and thermal processing apparatus |
| CN1644384A (en) * | 2004-11-05 | 2005-07-27 | 季节 | Heating time controlling method and controller for thermal sensitive printer head |
| CN1984779A (en) * | 2004-04-26 | 2007-06-20 | 宝丽来公司 | Thermal response correction system |
| JP2008284695A (en) * | 2007-05-15 | 2008-11-27 | Funai Electric Co Ltd | Image forming apparatus |
| US20090175310A1 (en) * | 2008-01-07 | 2009-07-09 | Saquib Suhail S | Platen Temperature Model |
| CN101596811A (en) * | 2008-06-03 | 2009-12-09 | 韩燕� | A kind of energy-storing USB thermal sensitive printer |
| CN102649369A (en) * | 2012-05-02 | 2012-08-29 | 青岛海信智能商用系统有限公司 | Portable thermal printer power supply circuit and method |
| JP2012166371A (en) * | 2011-02-10 | 2012-09-06 | Canon Inc | Printing apparatus, method of controlling the same, and control program |
| CN103112254A (en) * | 2013-02-01 | 2013-05-22 | 深圳市理邦精密仪器股份有限公司 | Thermal head heating adjusting device, thermal head heating adjusting method and thermal printer |
-
2014
- 2014-11-27 CN CN201410699311.1A patent/CN104494317B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000218844A (en) * | 1999-02-01 | 2000-08-08 | Star Micronics Co Ltd | Method for controlling temperature of thermal head and thermal processing apparatus |
| CN1984779A (en) * | 2004-04-26 | 2007-06-20 | 宝丽来公司 | Thermal response correction system |
| CN1644384A (en) * | 2004-11-05 | 2005-07-27 | 季节 | Heating time controlling method and controller for thermal sensitive printer head |
| JP2008284695A (en) * | 2007-05-15 | 2008-11-27 | Funai Electric Co Ltd | Image forming apparatus |
| US20090175310A1 (en) * | 2008-01-07 | 2009-07-09 | Saquib Suhail S | Platen Temperature Model |
| CN101596811A (en) * | 2008-06-03 | 2009-12-09 | 韩燕� | A kind of energy-storing USB thermal sensitive printer |
| JP2012166371A (en) * | 2011-02-10 | 2012-09-06 | Canon Inc | Printing apparatus, method of controlling the same, and control program |
| CN102649369A (en) * | 2012-05-02 | 2012-08-29 | 青岛海信智能商用系统有限公司 | Portable thermal printer power supply circuit and method |
| CN103112254A (en) * | 2013-02-01 | 2013-05-22 | 深圳市理邦精密仪器股份有限公司 | Thermal head heating adjusting device, thermal head heating adjusting method and thermal printer |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN104842668A (en) * | 2015-06-11 | 2015-08-19 | 上海威侃电子材料有限公司 | Control method for printing system |
| CN105082795B (en) * | 2015-08-24 | 2018-08-21 | 福建联迪商用设备有限公司 | Print control program, system and the electronic payment terminal of thermal printer |
| CN105082795A (en) * | 2015-08-24 | 2015-11-25 | 福建联迪商用设备有限公司 | Printing control method and system for thermal printer and electronic payment terminal |
| WO2017032198A1 (en) * | 2015-08-24 | 2017-03-02 | 福建联迪商用设备有限公司 | Printing control method and system for thermal printer, and electronic payment terminal |
| CN106864041B (en) * | 2016-12-28 | 2019-06-11 | 虎丘影像（苏州）有限公司 | A kind of temperature control system and method for image printer |
| CN106864041A (en) * | 2016-12-28 | 2017-06-20 | 虎丘医疗科技（苏州）有限公司 | The temperature control system and method for a kind of image printer |
| CN107244146A (en) * | 2017-05-31 | 2017-10-13 | 青岛海信智能商用系统股份有限公司 | Thermal printing head temperature-control circuit and thermal printer |
| CN109016890A (en) * | 2017-06-09 | 2018-12-18 | 深圳九磊科技有限公司 | A kind of memory, thermal printer and its print control program |
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| CN107878059B (en) * | 2017-09-22 | 2020-01-31 | 福建联迪商用设备有限公司 | Efficient printing method and storage medium |
| CN111332028A (en) * | 2020-03-18 | 2020-06-26 | 厦门汉印电子技术有限公司 | Heating point detection circuit and method of printing head and printer |
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| CN111959138A (en) * | 2020-08-28 | 2020-11-20 | 深圳市新国都支付技术有限公司 | Printing system and printing method |
| CN111959138B (en) * | 2020-08-28 | 2022-07-01 | 深圳市新国都支付技术有限公司 | Printing system and printing method |
| CN115071282A (en) * | 2022-07-21 | 2022-09-20 | 上海商米科技集团股份有限公司 | Motor speed control method and device of printer and printer |
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