JP6535716B2 - handy terminal - Google Patents

Description

  The present invention relates to a handy terminal (portable terminal).

  As background art related to the present invention, a power supply connected to a secondary battery for supplying driving power to a handy terminal, a power reception connection for electrically connecting to an external power supply source, and a power reception connection As a charge mode for charging the secondary battery from the source, a charge mode storage means for storing a plurality of charge modes having different charge conditions and a charge mode for selecting one charge mode from the charge modes for storing a plurality of charge modes A charging mode selecting means and a charging control means for charging the secondary battery based on one charging mode selected by the charging mode selecting means are provided, and an appropriate charging method can be selected according to the user's request. Such a handy terminal is known (see, for example, Patent Document 1).

JP, 2013-156755, A

  As a battery for driving a handy terminal in recent years, a lithium ion battery is often used because of its high energy density. A general user tends to connect to a charger when charging is possible and keep the state as close to full charge as possible in order to be aware of the usable time after charging. However, the lithium ion battery has a characteristic that the deterioration accelerates when stored in a high temperature environment, in particular, in a state where the battery remaining amount is large. Therefore, it often deteriorates before the cycle life is reached, and the user may have to replace the battery in a short period of time, but there was a problem that it was difficult to cope with this in the prior art .

  The present invention has been made in consideration of the above circumstances, and provides a handy terminal capable of extending the battery life by minimizing the battery remaining amount at the time of storage.

  According to the present invention, a secondary battery for supplying driving power to a handy terminal, a charging unit for charging the secondary battery, a remaining amount detecting unit for detecting a remaining amount of the secondary battery, and time lapse of the handy terminal A first storage unit for storing in advance a work schedule indicating work content and power consumption, and an output from the remaining amount detection unit and the first storage unit to calculate the remaining power of the secondary battery from the total power consumption of the work schedule The present invention provides a handy terminal provided with a control unit that executes a process of performing subtraction and charging the charging unit with insufficient power.

  According to the present invention, the remaining power of the secondary battery is subtracted from the total power consumption calculated based on the work schedule indicating the power consumption with the passage of time of the handy terminal, and the power shortage is the secondary battery before the work. Because the battery is charged, the remaining capacity of the secondary battery is minimized at the end of work on the handy terminal. Therefore, the deterioration of the secondary battery due to the battery remaining amount is prevented.

It is a block diagram showing composition of a 1st embodiment of a handy terminal of this invention. It is a flowchart which shows operation | movement of the handy terminal shown in FIG. It is the FIG. 2 equivalent view of 2nd Embodiment of the handy terminal of this invention. It is the FIG. 2 corresponding | compatible figure of 3rd Embodiment of the handy terminal of this invention. It is explanatory drawing which shows the operation | work schedule table | surface of the handy terminal of this invention.

  The features of the handy terminal according to the present invention include a secondary battery for supplying driving power to the handy terminal, a charging unit for charging the secondary battery, a remaining amount detecting unit for detecting the remaining amount of the secondary battery, and the handy terminal A first storage unit for storing in advance a work schedule and a work schedule indicating the power consumption according to the passage of time, and outputs from the remaining amount detection unit and the first storage unit from the total power consumption of the work schedule The controller is provided with a control unit that executes a step of subtracting the remaining amount of the battery and charging the charging unit with the insufficient power.

  The work schedule includes a standby period in which the work is not performed, and the control unit subtracts the remaining amount of the secondary battery from the remaining total power consumption of the work schedule in the standby period, and supplies the insufficient power to the charging unit. The step of recharging may further be performed.

  The system further comprises a second storage unit for storing a process chart showing the relationship between the elapsed time and the power consumption with respect to actual work while driving the handy terminal, and the control unit performs the work schedule of the first storage unit after all work is completed. It is preferable to update according to the above-mentioned process chart.

  The said remaining amount detection part may detect the remaining amount of a battery based on the integration value of the charging / discharging current of a secondary battery, and the terminal voltage of a secondary battery.

  The charging unit may charge the secondary battery with a constant current characteristic until the terminal voltage thereof reaches a predetermined value, and thereafter charge with a constant voltage characteristic.

The present invention will be described in detail below based on the embodiments shown in the drawings.
First Embodiment FIG. 1 is a block diagram showing the configuration of a handy terminal according to a first embodiment of the present invention.
As shown in the figure, the handy terminal 1 includes a charging circuit 2, a secondary battery 3, a power control circuit 4, a remaining amount detecting unit 5, a shunt resistor 5a, a control unit (CPU) 6, a memory 7, a clock unit 8, an operation. A display unit 10, a display unit 10, a reading unit (bar code scanner) 12, and a transmission unit 13 are provided.

The handy terminal 1 is connected to the charger 11 so as to be detachable.
The charging circuit 2 is a circuit that receives an instruction from the control unit 6 and controls the output of the charger 11 to constant current and constant voltage characteristics to charge the secondary battery 3. That is, constant current charging is performed until the terminal voltage of the secondary battery 3 reaches a predetermined value, and then constant voltage charging is performed at the predetermined voltage. Further, a lithium ion battery is suitably used for the secondary battery 3.

  The power control circuit 4 is a circuit that receives the output of the secondary battery 3 and supplies driving power to each part of the handy terminal 1. The remaining amount detecting unit 5 is a detecting unit for detecting the stored power stored in the secondary battery 3 from the integrated value of the charge / discharge current flowing through the shunt resistor 5a and the terminal voltage of the secondary battery 3, that is, the remaining battery amount. .

  The control unit 6 includes a CPU, receives outputs from the operation unit 9, the remaining amount detection unit 5, the memory 7, and the time measuring unit 8 to control the charging circuit 2 and to output it to the display unit 10. Further, the control unit 6 is connected to the reading unit 12 and the transmission unit 13.

  The memory 7 includes a ROM and a RAM, and stores a control program of the control unit 6, a work schedule of the handy terminal 1, and the like. The timer unit 8 has a clock function and a calendar function. The operation unit 9 includes a keyboard and a touch panel, the display unit 10 includes an LCD and a display lamp, and the operation unit 9 and the display unit 10 function as a user interface.

  Here, the handy terminal 1 is mainly used for inventory control of goods. The Handy Terminal 1 is disposed in a store or warehouse, and reads symbols such as barcodes and two-dimensional codes attached to products etc., performs decoding (decoding), and stores stock management data etc. as a server or host computer. Send to the side.

  For this reason, the handy terminal 1 includes a reading unit 11 for reading a symbol. Further, inventory control information and the like of each store are exchanged between the stores using the communication unit 12, and are transmitted to the server and recorded.

The operation in such a configuration will be described with reference to the flowchart shown in FIG.
First, the user connects the handy terminal 1 to the charger 11 (step S101).
If the work schedule is set (stored) in advance in the first storage unit of the memory 7, the schedule table in which the work content and the required power (%) of one day are described as shown in FIG. Is displayed (step S102).

  Here, the required power (%) indicates a ratio when the power at the time of full charge of the secondary battery 3 is 100%. If the schedule table is not set, the user sets the schedule table as shown in FIG. 5A by the operation unit 9 (step S103).

Then, the current date and time are confirmed by the timer unit 8 (step S104).
Next, the set work schedule table is referred to (step S105), and the power Wa necessary from the time to the final work is calculated (step S106).
Further, the remaining battery charge Wb is confirmed by the remaining battery charge detection unit 5 (step S107).

  Here, Wa and Wb are compared, and if Wa> Wb (step S108), the necessary charge amount Wc = Wa−Wb is calculated (step S109), and charging of the secondary battery 3 is started. The display lamp "charging" of the display unit 10 is turned on (step S110).

When the power of Wc is charged (step S111), the charging is finished and the display lamp "charging" is turned off (step S112).
Therefore, the user removes the handy terminal 1 from the charger 11 (step S113), and while referring to the schedule table displayed on the display unit 10, reads "bar code", "totals inventory", "totals results" While performing the operation such as “transmission”, the operation content actually performed is input using the operation unit 9 (step S114).

Thus, the control unit 6 calculates the time and power consumption actually taken for each work content input during work, and creates an actual process chart as shown in FIG. Store in the second storage unit of 7.
Then, the process of step S114 is continued until all the predetermined work is completed (step S115), and when all the work is completed, the work schedule table set in step S102 or S103 is updated by the actual process chart. (Step S116).
If Wa ≦ Wb in step S108, the routine proceeds to step S113.

Second Embodiment The configuration of the handy terminal in this embodiment is the same as that of the first embodiment (FIG. 1).

The operation in the second embodiment will be described using the flowchart shown in FIG.
First, the user connects the handy terminal 1 to the charger 11 (step S201).
If the work schedule is set (stored) in advance in the first storage unit of the memory 7, the schedule table in which the work content of one day and the power necessary for each work are described as shown in FIG. 5A. 10 is displayed (step S202). If not set, the user sets the schedule table as shown in FIG. 5A by the operation unit 9 (step S203).

Then, the current date and time are confirmed by the timer unit 8 (step S204).
Next, the set work schedule table is referred to (step S205), and the power Wa necessary from the work at that point in time to the final work is calculated (step S206).
Then, the remaining battery amount Wb is confirmed by the remaining battery amount detection unit 5 (step S104).

  Here, Wa and Wb are compared, and if Wa> Wb (step S208), the necessary charge amount Wc = Wa−Wb is calculated (step S209), and charging of the secondary battery 3 is started. The display lamp "charging" of the display unit 10 is turned on (step S210).

When the power corresponding to Wc is charged (step S211), the charging is completed and the display lamp "charging" is turned off (step S212).
Therefore, the user disconnects the handy terminal 1 from the charger 11 (step S213), starts the work while referring to the schedule table displayed on the display unit 10, and performs the operation contents actually performed. It uses and inputs (step S214).

  Thus, the control unit 6 calculates the time and power consumption actually taken for each work content input during work, and creates an actual process chart as shown in FIG. Store in the second storage unit of 7.

  If it becomes a standby period (preparation period during which no work is performed) during work (step S214a), the routine returns to step S201, and the process from steps S201 to S214a is repeated. That is, the handy terminal 1 is connected to the charger 11 again, and if Wa> Wb, charging of only the shortfall Wc (= Wa−Wb) is performed.

Then, the process of step S214 is continued until all the predetermined work is completed (step S215), and when all the work is completed, the work schedule table set in step S202 or S203 is updated by the actual process chart (Step S216).
If Wa ≦ Wb in step S208, the routine proceeds to step S213.

Third Embodiment The configuration of the handy terminal in this embodiment is the same as that of the first embodiment (FIG. 1).

The operation in the third embodiment will be described with reference to the flowchart shown in FIG.
First, the user connects the handy terminal 1 to the charger 11 (step S301).
If the work schedule (for normal day) shown in FIG. 5 (a) and the work schedule (for specific day) shown in FIG. 5 (c) are preset (stored) in the first storage section of memory 7 (step S302), the current date and time are confirmed by the timer unit 8 (step S304).

  Then, if the work day is the normal day (step S304a), a schedule table describing the work contents of one day and the power necessary for each work shown in FIG. 5A is displayed on the display unit 10 (step S305) ).

  If the work date is a specific date, a schedule table shown in FIG. 5C is displayed on the display unit 10 (step S304 b). If the work schedule is not set in step S302, the user sets the schedule table as shown in FIGS. 5A and 5C by the operation unit 9 (step S303).

Next, the displayed work schedule table is referred to, and the power Wa required from the time to the final work is calculated (step S306).
Further, the remaining battery charge Wb is confirmed by the remaining battery detection unit 5 (step S307).

  Here, Wa and Wb are compared, and if Wa> Wb (step S308), the necessary charge amount Wc = Wa−Wb is calculated (step S309), and charging of the secondary battery 3 is started and the display unit The display lamp 10 "charging" lights up (step S310).

When the power of Wc is charged (step S311), the charging is finished and the display lamp "charging" is turned off (step S312).
Then, the user removes the handy terminal 1 from the charger 11 (step S313), executes the work while referring to the schedule table displayed on the display unit 10, and performs the operation contents actually performed. It inputs using (step S314).

Thereby, the control unit 6 calculates the time and power consumption actually taken for each work content input during work, and creates an actual process chart (not shown) to store the second memory 7 Store in the department.
Then, the process of step S314 is continued until all the predetermined work is completed (step S315), and when all the work is completed, the work schedule table set in step S302 or S303 is updated by the actual process chart. (Step S316).
If Wa ≦ Wb in step S308, the routine proceeds to step S313.

DESCRIPTION OF SYMBOLS 1 Handy terminal 2 charge circuit 3 secondary battery 4 power supply control circuit 5 remaining amount detection part 6 control part 7 memory 8 clock part 9 operation part 10 display part 11 charger 12 reading part 13 communication part

Claims (2)

A storage unit for storing a work schedule indicating at least one work scheduled and drive power required to execute the work;
A display unit for displaying information;
A control unit configured to display together the work content relating to the work schedule and the driving power necessary to execute the work on the display unit ;
The said control part is a handy terminal which displays the said work schedule and the drive electric power required for execution of the work on the said display part, when it connects with the external charger so that the battery which supplies the said drive electric power may be charged . A timekeeping unit that provides the current date and time, and measures the passage of time while performing scheduled work;
And a remaining amount detection unit for detecting the consumption of the stored power of the battery during the execution of the work.
Wherein, after the execution of scheduled tasks is completed, based on the time and power consumption required for execution of the work, according to claim 1 for updating the work schedule stored in the storage unit handy terminal.

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