CN105281404A - Reliable printing method for hand-held electric (point-of-sale) POS terminal in condition of low battery voltage - Google Patents
Reliable printing method for hand-held electric (point-of-sale) POS terminal in condition of low battery voltage Download PDFInfo
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- CN105281404A CN105281404A CN201510696414.7A CN201510696414A CN105281404A CN 105281404 A CN105281404 A CN 105281404A CN 201510696414 A CN201510696414 A CN 201510696414A CN 105281404 A CN105281404 A CN 105281404A
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- pos terminal
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention relates to a circuit control method for a POS terminal, namely a reliable printing method for a hand-held electric (point-of-sale) POS terminal in a condition of a low battery voltage. The reliable printing method comprises the following steps: comparing and judging a residual voltage value of a battery by a battery voltage comparator in the beginning of printing, when the voltage value is higher than a preset value, performing normal printing; when the voltage value is lower than the preset value, starting a low voltage regulating circuit by a printing circuit; by regulating the speed of a servo motor and synchronously outputting printing data to further realize the reliable and clear data printing in the condition of low battery voltage to prolong the service time of the hand-held POS terminal. By adoption of the method, the service time of the hand-held POS terminal can be prolonged by greater than 20% in the condition of equivalent battery voltage and equivalent capacity without increasing the battery capacity and without adopting an external power supply for direct power supply, therefore, the portability and the usability of the hand-held electric POS terminal equipment are greatly improved.
Description
technical field
The present invention relates to POS circuit control method, the reliable Method of printing namely in handheld power electricity-selling terminal POS battery low-voltage situation.
Background technology
In the prior art, handheld power POS, uses lithium battery power supply, in use, often runs into cell voltage low and cannot start the problem of printer.
In order to extend the equipment use time of hand-hold type POS, two kinds of conventional at present technical approach are: use high capacity cell and external power supply.Through market service test, the hand-hold type POS of these two kinds of processing modes is adopted to occur following shortcoming in its routine use process:
1) high capacity cell is used, although the service time of hand-hold type POS can be extended, the increase of battery capacity, the weight and volume that but result in battery self also strains large mutually, and then make hand-hold type POS lose its portability, be not easy to carry and outdoor use.
2) using the hand-hold type POS of external power source, although be easy to carry, but can not meeting its needs do not have externally fed power supply this strong demand of open air use through being everlasting.This processing mode equals to be become by hand-hold type fixed (necessary external power supply), can not realize the function of paying the fees whenever and wherever possible, greatly reduce the ease for use of equipment, the equipment that reduces spendable place scope.
Summary of the invention
The object of the invention is to provide a kind of this patent can realize electric power POS when powered battery deficiency for above-mentioned deficiency, regulated by the print speed of internal circuit to thermal printer, to realize under low voltage condition reliably, clearly data-printing, the reliable Method of printing in the handheld power electricity-selling terminal POS battery low-voltage situation of the service time of extension device.
Technical solution of the present invention is: the reliable Method of printing in handheld power electricity-selling terminal POS battery low-voltage situation, its step is as follows: print and start, by cell voltage comparator, judgement is compared to remaining battery magnitude of voltage, when magnitude of voltage is higher than preset value, print normally; When magnitude of voltage is lower than preset value, print circuit will start low-voltage regulating circuit, by regulating servomotor speed and carrying out synchronism output to print data, so to realize when battery low-voltage still can reliably, clearly print data, extend the service time of hand-hold type POS.Described cell voltage comparison circuit comprises: voltage sampling unit, and MCU sampling AD arithmetic element, MCU computing comparing unit forms.Described low-voltage regulating circuit comprises: low-voltage regulation unit, printer speed control unit, printer driver output unit, printer electric current, speed sensor feedback unit.
Advantage of the present invention is: 1, do not increasing battery capacity, external power source is not adopted directly to power, when ensureing mobility and the portability of handheld power POS, by detection and the adjustment of electronic circuit, extend the service time of hand-hold type POS lithium battery.2, use this handheld power POS, when equal cell voltage and capacity, service time of battery more than 20% can be extended, improve portability and the ease for use of handheld power POS equipment greatly.
Below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail.
Accompanying drawing explanation
Fig. 1 is present system design frame chart.
Fig. 2 is cell voltage comparison circuit schematic diagram.
Fig. 3 is low-voltage regulating circuit schematic diagram.
Embodiment
See Fig. 1, handheld power POS is when user-selected number is according to printing, equipment will start cell voltage comparison circuit, selection is carried out to printing type start by comparing cell voltage and equipment predeterminated voltage, when battery voltage value is higher than preset value time, device start printer, carries out normal data-printing function.When cell voltage is lower than preset value time, equipment will start thermal printer servomotor alignment circuit, servomotor speed be reduced, and synchronously carry out data-printing.
See Fig. 2, described cell voltage comparison circuit comprises: voltage sampling unit, and MCU sampling AD(analog signal turns digital signal) arithmetic element, MCU computing comparing unit forms.
Cell voltage comparison circuit is by the real time data sampling to cell voltage, the AD(analog signal that signal of telecommunication cell voltage being converted to low amplitude value sends MCU to turns digital signal) unit, MCU compares the digital signal of conversion and internal preset voltage magnitude.When cell voltage is higher than default comparison value time, normally start printing function; When cell voltage is lower than default comparison value, the comparative result of voltage comparator circuit is transmitted voltage regulator circuit, carries out low-voltage regulable control.
See Fig. 3, described low-voltage regulating circuit comprises: low-voltage regulation unit, printer speed control unit, printer driver output unit, printer electric current, the compositions such as speed sensor feedback unit.
Cell voltage comparison circuit Output rusults is as low-voltage regulating circuit reference value, according to the voltage results of different brackets, the rotating speed of hardware circuit printer is regulated, reduce the rotary speed of servomotor, the electric current of printer and velocity transducer, the running status feedback control circuit of printer, form the closed-loop control of circuit.When cell voltage is lower than regulation voltage the lowest class, printer will no longer work.
Describe above, just the specific embodiment of the present invention, various illustrating is not construed as limiting flesh and blood of the present invention.
Claims (3)
1. the reliable Method of printing in a handheld power electricity-selling terminal POS battery low-voltage situation, it is characterized in that step is as follows: print and start, by cell voltage comparator, judgement is compared to remaining battery magnitude of voltage, when magnitude of voltage is higher than preset value, print normally; When magnitude of voltage is lower than preset value, print circuit will start low-voltage regulating circuit, by regulating servomotor speed and carrying out synchronism output to print data, so to realize when battery low-voltage still can reliably, clearly print data, extend the service time of hand-hold type POS.
2. in accordance with the method for claim 1, it is characterized in that described cell voltage comparison circuit comprises: voltage sampling unit, MCU sampling AD arithmetic element, MCU computing comparing unit forms.
3., according to the method described in claim 1 or 2, it is characterized in that described low-voltage regulating circuit comprises: low-voltage regulation unit, printer speed control unit, printer driver output unit, printer electric current, speed sensor feedback unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510696414.7A CN105281404A (en) | 2015-10-26 | 2015-10-26 | Reliable printing method for hand-held electric (point-of-sale) POS terminal in condition of low battery voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510696414.7A CN105281404A (en) | 2015-10-26 | 2015-10-26 | Reliable printing method for hand-held electric (point-of-sale) POS terminal in condition of low battery voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105281404A true CN105281404A (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510696414.7A Pending CN105281404A (en) | 2015-10-26 | 2015-10-26 | Reliable printing method for hand-held electric (point-of-sale) POS terminal in condition of low battery voltage |
Country Status (1)
| Country | Link |
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| CN (1) | CN105281404A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1158841A (en) * | 1997-08-25 | 1999-03-02 | Oki Data:Kk | Printer |
| CN102029821A (en) * | 2009-10-07 | 2011-04-27 | 日本冲信息株式会社 | Print apparatus and print method |
| CN103707662A (en) * | 2012-09-28 | 2014-04-09 | 日本冲信息株式会社 | Printer and printer head driving method |
| CN103722908A (en) * | 2012-10-10 | 2014-04-16 | 精工爱普生株式会社 | Printing apparatus and printing method |
-
2015
- 2015-10-26 CN CN201510696414.7A patent/CN105281404A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1158841A (en) * | 1997-08-25 | 1999-03-02 | Oki Data:Kk | Printer |
| CN102029821A (en) * | 2009-10-07 | 2011-04-27 | 日本冲信息株式会社 | Print apparatus and print method |
| CN103707662A (en) * | 2012-09-28 | 2014-04-09 | 日本冲信息株式会社 | Printer and printer head driving method |
| CN103722908A (en) * | 2012-10-10 | 2014-04-16 | 精工爱普生株式会社 | Printing apparatus and printing method |
Non-Patent Citations (1)
| Title |
|---|
| 马玉良: "《计算机组成原理》", 31 October 1997 * |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160127 |