CN104077858A

CN104077858A - Electronic equipment

Info

Publication number: CN104077858A
Application number: CN201410055585.7A
Authority: CN
Inventors: 河本勉
Original assignee: Toshiba TEC Corp
Current assignee: Toshiba TEC Corp
Priority date: 2013-03-27
Filing date: 2014-02-19
Publication date: 2014-10-01
Also published as: JP2014193010A

Abstract

The invention provides electronic equipment which can handle the condition that the power consumption of the whole system exceeds a specific value. A battery is put in a POS terminal and serves as an auxiliary power supply of a main power supply. Only the main power supply supplies power to a common load, and the battery achieves power supply when the power consumption of the whole POS terminal exceeds a constant value. Because the battery can supply when the main power supply cannot supply enough power, the remaining power of the main power supply can be more, thereby achieving the miniaturization of the main power supply correspondingly, and facilitating the reduction of the power supply.

Description

Electronic equipment

Technical field

The present invention relates to according to circumstances optionally to supply with the electronic equipment of interchange and direct supply.

Background technology

In prior art, in the various electronic equipments that are connected with the primary power of source power supply,, in order to ensure having a power failure or security when the primary power that causes of other accident disconnects possess supply unit as described below,, this supply unit possesses the standby power supply of the battery based on built-in.

But, possess the battery based on built-in standby power supply, for example POS(Point of Sales: point of sale) in terminal, be designed to connect a lot of peripheral units such as printer, scanner.In order also can to carry out sufficient electric power supply under such connection status, the maximum consumption electric power of the primary power of POS end side has surplus.Therefore, exist the electricity capacity of primary power to increase, primary power maximizes and expensive problem.

Formerly technical literature

Patent documentation

Patent documentation 1: Japanese Patent Laid-Open 2001-45678 communique

Summary of the invention

The problem that the present invention will solve is to provide a kind of power consumption in entire system and has exceeded setting, can carry out electric power supply and realize the electronic equipment of the miniaturization of power supply from other power supply.

Electronic equipment in embodiment possesses can be by primary power and the battery-driven main body that can charge, described primary power carries out direct current conversion from source power supply, described electronic equipment possesses control part, described control part carries out following control: in the case of the power consumption of described main body be below reference value, carry out electric power supply from described primary power, exceed described reference value at the power consumption of described main body, on the basis of described primary power, also carry out electric power supply from described battery.

Embodiment

Below, with reference to accompanying drawing, embodiment is described in detail.

(the first embodiment)

Fig. 1 is the schematic pie graph of the first embodiment of illustrating that electronic equipment is relevant.In this embodiment, as electronic equipment, listed POS(Point Of Sales: point of sale) example of terminal 100.

As shown in Figure 1, in the upper surface side of the main body 11 of POS terminal 100, be provided with keyboard 12.Lower side in main body 11 is provided with drawer 13 to pull out mode freely.Keyboard 12 disposes numerical key, adds up to key, settles accounts key, discounting key, cancel key, delete key etc.Drawer 13 is for receiving the cash as small change.

In addition, in main body 11, be provided with the salesman who is formed by display device such as liquid crystal display and use display 15 with display 14 and client.

Salesman is set to the use of the operator for operating POS terminal 100 with display 14.Salesman shows the trade name, price, the Amount in Total of transaction, the amount of money etc. of giving change of logining commodity to the operator of POS terminal 100 who is called as cashier etc. with display 14.Salesman can be the form with touch panel function with display 14.

In addition, client is arranged in use in the client's that POS terminal 100 settles accounts use with display 15.Client's use display 15 shows the information such as the Amount in Total of the purchase of customer commodity identical with salesman's use display 14 to shopper.

And, in POS terminal 100, be connected with printer 17, scanner 18 etc. as peripheral unit, load.Printer 17 carries out the printing of receipt, daily record etc.Scanner 18 forms by touching scanner 181 and scanner drive division 182.The bar code data that scanner 18 reads touch scanner 181 sends to main body 11.

Main body 11 and printer 17 by USB connector 201, USB connecting line 211 from being arranged at the USB(Universal Serial Bus of side of main body 11: USB (universal serial bus)) port one 91 is connected.

Main body 11 and scanner 18 are connected from the second USB port 192 of the side that is arranged at main body 11 by USB connector 202, USB connecting line 212.Scanner 18 is optically read is additional to bar code, the Quick Response Code on commodity of selling in shop etc.

Be provided with the same side of the main body 11 that is provided with the first USB port 191, the second USB port 192 the 3rd USB port 193 not being connected.The 3rd USB port 193 is for being connected with other peripheral unit.In addition, in Fig. 1, show three USB port, still, also can further increase number.

Printer 17 is powered from main body 11 via USB connecting line 211.In addition, scanner 18 is powered from main body 11 via USB connecting line 212.

Fig. 2 is the block diagram that the formation of the electrical system of POS terminal 100 is shown.As shown in the drawing, CPU(Central Processing Unit is installed in the control part 30 of POS terminal 100: CPU (central processing unit)) 31, ROM(Read Only Memory: ROM (read-only memory)) 33, RAM(Random Access Memory: random access memory) 34, FROM(Flash Read Only Memory: flash ROM) 35.

On control part 30, be connected with for the keyboard controller 36 of supervisory keyboard 12, use the display controller 37 of display 15, the I/O port 38 of connecting drawer 13 for controlling salesman with display 14 and client.Drawer 13, for receiving the cash as small change, automatically carries out opening action based on coming from the driving signal of I/O port 38.

In ROM33, store software (firmware) for controlling control part 30 entirety (BIOS).Interim memory print data etc. in RAM34.

In FROM35, store the control for printing action various parameters, printer log in relevant content etc.In FROM35, pre-stored have the power value of primary power described later, a specified power value of the first and second battery.

In addition the pen recorder of, storing various programs must be not necessarily FROM35.For other memory storage, as optical example, for example, can be DVD(Digital Versatile Disc: digital versatile disc), magnetic HDD.In addition,, as the example of electrical resistance, can consider SSD(Solid State Device: solid-state devices) etc.

On control part 30, be connected with respectively the first USB port 191, the second USB port 192 being connected with scanner 18 being connected with printer 17, the 3rd USB port 193 that does not connect peripheral unit.

And, on control part 30, be connected with power control part 40.Power control part 40 also to the printer 17 being connected with the first USB port 191, the scanner 18 that is connected with the second USB port 192 supplies with electric power.Therefore, in printer 17 and scanner 18 self, can be, the formation that there is no power supply.

Primary power 41, the first battery 42, the second battery 43 on power control part 40, are supplied to.The DC voltage of for example 24V changed the source power supply of 100V 39 be generated as by primary power 41.The first and second battery the 42, the 43rd, the secondary cells such as lithium ion, ni-mh, specified is for example the DC voltage of 24V.

In addition, the DC voltage of the 24V of primary power 41, the first and second battery 42,43 is also converted into for example 12V, 5V, 3.3V, the 5V that the each several part in POS terminal 100 uses and is assigned with.

Between primary power 41 and control part 30, be connected with electric power testing circuit 401.Between the first battery 42 and electric power testing circuit 401, be connected with the first on-off circuit 402.Between the second battery 43 and electric power testing circuit 401, be connected with second switch circuit 403.First and second switch circuit 402,403 for example formed by the MOSFET as thyristor.Can be as required first and second switch circuit 402,403 is built-in boosts or reduction voltage circuit.

The detection signal of electric power testing circuit 401 based on detecting the not shown sensor that flows into the electric current of inputting, detects the electric power of main body 11 and is connected in the electricity usage amount of the peripheral unit of the first～three USB port 191～193.The testing result of electric power testing circuit 401 is supplied to control part 30.

The control signal of the first on-off circuit 402 based on control part 30 and conducting, thus the first battery 42 connected.Similarly, the control signal of second switch circuit 403 based on control part 30 and conducting, thus connect the second battery 43.

Fig. 3 is the process flow diagram of the control example of the electric power supply for the first embodiment is described.Process flow diagram since first and the state that disconnects of second switch circuit 402,403, from only driving the processing of POS terminal 100 to illustrate by primary power 41.

In the situation that supplying with primary power 41 (ACT11), control part 30 judges that electricity usage amount that the electric power testing circuit 401 of power control part 40 detects is whether below pre-stored first reference value in FROM35 (ACT12).Here, first reference value refers to the value of the power consumption that can be supplied with by primary power 41.

In ACT12, being (YES) below first reference value in the situation that, enter ACT13, drive POS terminal 100 by primary power 41.

In ACT12, being judged as (no) exceeded first reference value in the situation that, drive the first on-off circuit 402, connect the first battery 42(ACT14).

Control part 30 judges whether the electricity usage amount that the electric power testing circuit 401 of power control part 40 detects has exceeded the second reference value (ACT15).Here, the second reference value is first rated electrical of battery 42 and the aggregate value of first reference value, pre-stored in FROM35.

In ACT15, (YES) in the situation that power consumption is below the second reference value, enters ACT16, drives POS terminal 100 by primary power 41 and the first battery 42.

In ACT15, in the situation that power consumption is greater than the second reference value (no), drive respectively first and second switch circuit 402,403(ACT18), enter ACT19.

In ACT19, the total electric power amount based on primary power 41 and the first and second battery 42,43 drives POS terminal 100.

Even if be connected with in POS terminal 100 under the state of printer 17, scanner 18, if the power consumption of main body 11 is low, first, second on-off circuit 402,403 not necessarily needs conducting.The aggregate-value of the power consumption of the peripheral unit being connected in power consumption and first～three USB port 191～193 of the main body 11 that control part 30 detects based on electric power testing circuit 401 judges., depending on the testing result of electric power testing circuit 401 and the comparative result that is stored in first in FROM35～three reference value.Here, the 3rd reference value is the aggregate value of the first and second reference value.

In the present embodiment, respectively do for oneself setting above in the situation that at power consumption with respect to the first～three reference value, except coming the electric power of automatic power supply supplies with, also to carry out electric power supply by the first and/or second battery.Thus, can reduce the maximum consumption electric power of primary power, contribute to the miniaturization of power supply.

And, about the electric power more than electric power of required primary power, can provide by the supply that comes from battery.Therefore, for the electric power of amount of electric power that exceedes primary power, use the electric power that comes from battery, therefore, contribute to save the electricity charge corresponding to this part.

(the second embodiment)

With reference to Fig. 4, the second embodiment of electronic equipment is described.Fig. 4 is the process flow diagram of the control example of the electric power supply for the second embodiment is described.

It is identical with the first embodiment that present embodiment possesses multiple for example first, second battery 42,43 this point in main body 11.In this embodiment, by primary power 41 with in the process that for example electric power of the first battery 42 drives, if because the electric discharge of the first battery 42 becomes in the situation of state of power shortage, switch to the second battery 43.

Electric power testing circuit 401 possesses the function that detects the required electric power of POS terminal 100 and detect the electric power amount that can supply with from the first and second battery 42,43.Testing result is supplied to control part 30.Primary power 41 and the power consumption amount of the first battery 42 are made as value that can be corresponding with the maximum consumption electric power of the peripheral unit being connected in POS terminal 100 and first～three USB port 191～193.In addition be also same about the power consumption amount of primary power 41 and the second battery 43.

The value of the power consumption that can be supplied with by primary power 41 in addition, is as first reference value.Using the aggregate value of rated electrical separately of the first or second battery 42,43 and first reference value as the second reference value.The first and second reference value is pre-stored in FROM35.

In Fig. 4, in the situation that having supplied with primary power 41 (ACT21), control part 30 judges that electricity usage amount that the electric power testing circuit 401 of power control part 40 detects is whether in FROM35 below pre-stored first reference value (ACT22).

In ACT22, the (YES) in the situation that of below first reference value, enters ACT23, drives POS terminal 100 by primary power 41.

In ACT22, being judged as (no) exceeded first reference value in the situation that, drive the first on-off circuit 402, select the connection (ACT24) of the first battery 42.

And, add that based on primary power 41 the total electric power of the first battery 42 drives POS terminal 100(ACT25), enter ACT26.

In ACT26, judge whether electric power amount required in POS terminal 100 is more than the second reference value.

In ACT26, in the case of be judged as the power consumption of POS terminal 100 be below the second reference value (YES), enter ACT27, the electric power based on primary power 41 and the first battery 42 drives POS terminal 100.

In ACT26, in the case of be judged as the power consumption of POS terminal 100 be more than the second reference value (no), control part 30 conducting second switch circuit 403, are connected (ACT28) with the second battery 43.

In addition, control part 30 can, in the situation that the first battery 42 consumes and switch to the second battery 43, carry out the charging of the first battery 42.Driving in POS terminal 100 state time, if fill the design that the enough and to spare of other battery is few, also can in the stopped process of POS terminal 100, charge.

And, can use the state that shows the dump power of the battery in using on display 14 salesman.Can use the charge condition that shows the battery in charging on display 14 salesman.In the time of the use of the first battery 42 or the second battery 43, can be always or as requested salesman with showing current which battery that using on display 14.

In this embodiment, prepare multiple batteries, using under the driving condition of primary power and battery, if charged state does not meet in the situation of reference value, use other battery.Thus, can prevent the total electric power in the case of needing primary power and battery the such drawback of system-down causing due to the consumption of battery.

(the 3rd embodiment)

Fig. 5 is the schematic pie graph of the 3rd embodiment for electronic equipment is described.

In this embodiment, second and the 3rd POS terminal 200,300 that connect the POS terminal 100 shown in the Fig. 2 that can drive with source power supply and built-in battery and only drive with source power supply by LAN.LAN is connected with principal computer etc.Fig. 2 summary illustrates the formation of a POS terminal 100, for the purpose of simplifying the description, considers to connect the situation of the first battery 42.

The electric power testing circuit 401 of the one POS terminal 100 also can be via the use electric power of line 51a, 52a detection second and the 3rd POS terminal 200,300.The control part 30 of the one POS terminal 100 be configured to can via line 51b, 52b from the first and second battery 42,43 to second and the 3rd POS terminal 200,300 supply with electric power.

And the value of the maximum power that can supply with from the primary power of the first～three POS terminal 100～300 is made as respectively first reference value.The rated electrical of the first battery 42 is made as the second reference value.In addition, consider that the first reference value that shares the first battery 42, the first～three POS terminal 100～300 is made as identical value.

The electric power testing circuit 401 of the one POS terminal 100 detects the power consumption of the first～three POS terminal 100～300, testing result is inputed to the control part 30 of a POS terminal 100.The information of control part 30 based on power consumption, judges whether to connect the first battery 42, if power shortage is also used the first battery 42.

Fig. 6 is the process flow diagram of the control example of the electric power supply for the 3rd embodiment is described.The processing whether process flow diagram is just driving by primary power separately since the first～three POS terminal 100～300 illustrates.

First, judge whether the first～three POS terminal 100～300 just drives (ACT31) by primary power separately.

In ACT31, drive (YES) by primary power separately in the case of being just judged as, enter ACT32, based on the information that comes from electric power testing circuit 401, judgement is by the whether required power shortage of the first～three POS terminal 100～300 primary power separately.

In ACT32, not Shortcomings (no), drive first～three POS terminal 100～300(ACT33 by primary power separately at the electric power that is judged as the first～three POS terminal 100～300 primary power separately).

In ACT32, in the case of being judged as primary power 41 power shortage (YES) separately, connect the first battery 42, the power shortage of primary power 41 is carried out to electric power and supplement (ACT34).

Like this, exist power shortage at the primary power of the first～three POS terminal 100～300, can only carry out supplementing from the electric power of the first battery 42 to the POS terminal 100 in the first～three POS terminal 100～300.Thus, as the primary power of the first～three POS terminal 100～300, can be the capacity also than required maximum power use amount with enough and to spare.

In addition, the electric power testing circuit 401 of a POS terminal 100 is to gather the electricity usage state that detects the first～three POS terminal 100～300, still, also can detect separately.And, based on the result of independent detection, for the POS terminal of power shortage, on the basis of primary power, add battery.

In addition, battery is built in a POS terminal 100, still, also can be connected from general battery unit and first～three POS terminal 100～300 as required.And, before increasing electric power from battery, can make the electric power circulation of the primary power that comes from the first～three POS terminal 100～300.

In the present embodiment, can realize the primary power that makes the maximum power use amount of multiple POS terminals there is respectively enough and to spare.Therefore, the primary power that can make each POS terminal is the primary power that capacity is less than originally required maximum consumption electric power, therefore, can make primary power cheap.

Be not limited to the respective embodiments described above.For example, primary power 41 can not be to be built in main body 11, but from source power supply the power supply via power supply adaptor.In this case, be configured to and can charge to the battery being configured in main body via power supply adaptor.

And, be not only the power shortage of primary power, in the situation that detecting primary power and disconnecting, can carry out the UPS(Uninterruptible Power Supply of action conventionally by switch to battery action, can also be used for comprehensively: uninterrupted power source) use of device.

Above, several embodiments of the present invention are illustrated, still, these embodiments, only as example, are not intended to limit scope of invention.These new embodiments also can be implemented by other variety of way, not departing from the scope of invention aim, can carry out various omissions, replacement, change.These embodiments or its distortion are included in scope of invention or aim, meanwhile, are included in the invention that claims record and in the scope being equal to.

Description of reference numerals

100 the one POS terminal 200 the 2nd POS terminals

300 the 3rd POS terminal 17 printers

18 scanner 191 first USB port

192 second USB port 193 the 3rd USB port

201,202 USB connector 211,212 USB connecting lines

35 FROM 39 source power supplies

40 power control part 401 electric power testing circuits

402 first on-off circuit 403 second switch circuit

41 primary power 42 first batteries

43 second batteries

51a, 51b, 52a, 52b line

Brief description of the drawings

Fig. 1 is the schematic pie graph of the first embodiment for electronic equipment is described.

Fig. 2 is the block diagram that the formation of the electrical system of POS terminal is shown.

Fig. 3 is the process flow diagram of the control example of the electric power supply for the first embodiment is described.

Fig. 4 is the process flow diagram of the control example of the electric power supply of the second embodiment for electronic equipment is described.

Fig. 6 is the process flow diagram of the control example of the electric power supply for the 3rd embodiment is described.

Claims

1. an electronic equipment, possessing can be by primary power and the battery-driven main body that can charge, described primary power carries out direct current conversion from source power supply, described electronic equipment is characterized in that, possesses control part, described control part carries out following control: in the case of the power consumption of described main body be below reference value, carry out electric power supply from described primary power, exceed described reference value at the power consumption of described main body, on the basis of described primary power, also carry out electric power supply from described battery.

2. electronic equipment according to claim 1, wherein,

Be connected in described main body by described primary power and described battery powered peripheral unit.

3. electronic equipment according to claim 2, wherein,

Described peripheral unit comprises printer and scanner.

4. electronic equipment according to claim 2, wherein,

Described peripheral unit is connected with described main body with USB connecting line by USB connector.

5. electronic equipment according to claim 1, wherein,

Described battery possesses the first battery and the second battery, even if described control part is in the situation that being judged as in conjunction with described primary power and described the first battery also power shortage, further appends and connects described the second battery.

6. electronic equipment according to claim 1, wherein,

Described battery possesses the first battery and the second battery, described main body be by described the first battery and described second battery of described primary power and connection any drive time, described control part, in the hypodynamic situation of the residual electricity that is judged as the battery in driving, switches to disconnected battery.

7. electronic equipment according to claim 1, wherein, described electronic equipment possesses:

Peripheral unit, described peripheral unit possesses main body and is connected in the primary power of this main body,

In the case of producing the power consumption deficiency of described peripheral unit, carry out electric power supply from the battery of the described main body of described electronic equipment.

8. electronic equipment according to claim 1, wherein,

Described electronic equipment possesses multiple described batteries.

9. electronic equipment according to claim 8, wherein,

Described electronic equipment possesses display, for showing the behaviour in service of described battery.

10. according to the electronic equipment described in any one in claim 1 to 9, wherein,

Described electronic equipment comprises POS terminal.