JPH113393A - Control method for bar code reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To unnecessitate a battery on the side of bar code reader and to visually confirm whether a bar code can be normally read or not. SOLUTION: This method is provided with a read part 7 for reading the bar code at least while being connected through an interface 10 to terminal equipment (portable miniaturized terminal equipment 2) and a confirm lamp 5 for confirming the reading state of bar code and after the read bar code is demodulated, bar code data are transmitted through the interface 10 to the terminal equipment. In this case, when the bar code data transmitted from the bar code reader 1 are received, the terminal equipment checks whether the received bar code data are normal data or not. When they are normal bar code data, a control signal is sent to the bar code reader 1 so that the confirm lamp 5 can be turned on.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling a bar code reader, and more particularly, to a method of controlling a bar code reader used by connecting to a portable small terminal device.

[0002]

2. Description of the Related Art FIG. 4 is an explanatory view of a conventional example. In the figure,
1 is a gun scanner type bar code reader, 2 is a portable small terminal device, 3 and 4 are batteries, 5 is a confirmation lamp, 6 is a trigger switch, 7 is a reading unit, 8 is a control unit, 9 is an input processing unit, 10 Indicates a barcode interface.

Conventionally, for example, a portable small terminal device that automatically reads and processes a commodity price or the like displayed by a bar code formed in a predetermined format is provided with a bar code reader that optically reads a bar code. Had been.

Among such bar code readers, a gun scanner type bar code reader is configured as shown in FIG. As shown in the figure, the gun scanner type bar code reader 1 is provided with a reading unit 7, a control unit 8, a trigger switch 6, a confirmation lamp 5, and an external battery 3 connected thereto.

The gun scanner type bar code reader 1 is connected to a portable small terminal 2 via a bar code interface 10. Portable small terminal device 2
Is provided with an input processing unit 9 and a battery 4 built therein.

The battery 3 supplies all the power in the gun scanner type bar code reader 1.
It is connected to the gun scanner type bar code reader 1 by a power cable. The battery 4 is a portable small terminal device 2
To supply all the power.

The confirmation lamp 5 is a lamp for confirming the reading of a bar code, and is lit by being supplied with power from the battery 3. When reading a barcode, the trigger unit 6 is operated to read the barcode in the reading unit 7. The read barcode data is demodulated by the control unit 8, converted into a barcode suitable for the barcode interface 10 again, and transmitted to the portable small terminal device 2 via the barcode interface 10.

In this case, when the bar code is read by the reading section 7, the confirmation lamp 5 is turned on under the control of the control section 8. By turning on the confirmation lamp 5, the operator or the like can visually check that the barcode has been read and the barcode data has been transmitted.

[0009]

The above-mentioned conventional apparatus has the following problems. (1) The gun scanner type bar code reader 1 requires a power supply to turn on the confirmation lamp 5 for confirming the reading of the bar code and to demodulate the read bar code.

However, the portable small terminal device 2 has a built-in battery 4, and this battery 4 is a power source for the inside of the device. For this reason, in the gun scanner type barcode reader 1, an external battery 3 is connected to supply power to each unit.

Accordingly, both the portable small terminal device 2 and the gun scanner type bar code reader 1 require batteries. (2) The portable small terminal device 2 has a built-in battery 4 and can be operated outdoors. However, since the external battery 3 is also connected to the gun scanner type bar code reader 1, it is very difficult to operate the bar code reader. Inconvenient.

That is, it is necessary for an operator or the like to carry the portable small terminal device 2, the gun scanner type bar code reader 1, and the battery 3. These are all separate and the battery 3 is heavy and is connected by a power cable, so that the operation is difficult.

(3) Gun scanner type bar code reader 1
When the portable small terminal device 2 receives the bar code data transmitted from the portable terminal device 2, it checks whether or not the bar code has been normally read. However, the result cannot be notified to the gun scanner type bar code reader 1. .

Therefore, the gun scanner type bar code reader 1 cannot know whether the bar code has been read normally. An object of the present invention is to solve such a conventional problem, eliminate the need for a battery on the barcode reader side, and allow the user to visually check whether or not a barcode has been read normally.

[0015]

FIG. 1 is an explanatory view of the principle of the present invention, and the same reference numerals as those in FIG. 4 denote the same parts. The present invention is configured as follows in order to solve the above problems.

(1): Connected to a terminal device (portable small portable terminal device 2) via an interface 10, and at least a reading section 7 for reading a bar code, and a confirmation for confirming a reading state of the bar code. A method of controlling a bar code reader comprising a lamp 5 and transmitting bar code data to a terminal device via the interface 10 after demodulating the read bar code, wherein the terminal device is transmitted from the bar code reader 1 When the barcode data is received, it is checked whether the received barcode data is normal data. If the barcode data is normal, a control signal is sent to the barcode reader 1 and the confirmation lamp 5 is sent. Was turned on.

(2): In the method of controlling a barcode reader according to (1), when the barcode can be read by the barcode reader 1, within a predetermined time after the barcode data 1 is transmitted to the terminal device. When the control signal is not received, the power supply is stopped, and when the control signal is received, the confirmation lamp 5 is turned on for a predetermined time and then the power supply is stopped.

(3): Terminal device (portable small terminal device 2)
And a reading unit 7 for reading at least a barcode, and a confirmation lamp 5 for confirming a reading state of the barcode.
Interface 1 after demodulating the read barcode
In a method of controlling a barcode reader that transmits barcode data to a terminal device via the terminal device 0, when the terminal device receives the barcode data transmitted from the barcode reader 1, the received barcode data is normal. It is checked whether the data is data or not. If the data is normal bar code data, a control signal is sent to the bar code reader 1, the confirmation lamp 5 is turned on, and the power of the bar code reader 1 is turned on by the terminal. It was supplied from the device 2.

(4): Connected to the portable small terminal device 2 via the barcode interface 10, at least a reading section 7 for reading a barcode, and a confirmation lamp for confirming a barcode reading state. 5. The power control method of the gun scanner type bar code reader which demodulates the read bar code, converts the read bar code into bar code data suitable for the bar code interface 10, and transmits the bar code data to the portable terminal device. The power (Vcc) of the gun scanner type bar code reader 1 is supplied from the portable small terminal device 2.

(5): The bar code data transmitted from the gun scanner type bar code 1 is transmitted to the portable small terminal device 2.
When the received bar code data is normal data, it is checked whether the received bar code data is normal data. If the bar code data is normal data, the lamp control signal (LAMP) is transmitted to the gun scanner type bar code reader (1). ) And confirm lamp 5
Was turned on.

(6): Gun scanner type bar code reader 1
When the bar code cannot be read, the power is immediately turned off (power supply is stopped) and the bar code can be read, and the lamp control is performed within a predetermined time after the bar code is transmitted. When the signal (LAMP) is not received, the power is turned off. When the lamp control signal (LAMP) is received and the confirmation lamp 5 is turned on, the power is turned off after turning on for a certain period of time. did.

(Operation) The operation of the present invention based on the above configuration will be described with reference to FIG. In the gun scanner type bar code reader 1, when the trigger switch 1 is operated in a state where power (Vcc) is supplied from the portable small terminal device 2 via the bar code interface 10,
The reading unit 7 reads the barcode.

At this time, if reading is impossible, the control section 8 immediately turns off the internal power supply (supply is stopped). If the bar code is successfully read, the control unit 8 demodulates the read bar code, converts the bar code into bar code data (a bar code suitable for the bar code interface) again, and transmits the bar code data to the portable small terminal device 2. I do.

In the portable small terminal device 2, the input processing unit 9
When the bar code data is received, the bar code data is demodulated and the master data is searched to check whether or not the data is normal.

As a result, if the bar code data is normal, a lamp control signal (LAMP) is sent to the gun scanner type bar code reader 1. The control unit 8 that has received the lamp control signal turns on the confirmation lamp 5.

In this way, the operator can visually confirm that the bar code has been read normally by turning on the confirmation lamp. In addition, since the power supplied to the confirmation lamp is supplied from the battery 4 of the portable small terminal device 2, the gun scanner type bar code reader 1 does not need to have a battery.

When the confirmation lamp 5 is turned on as described above, if the confirmation lamp 5 is turned on for a certain period of time, the control unit 8 turns off the internal power supply and turns off the confirmation lamp 5. Further, if the lamp control signal (LAMP) cannot be received within a predetermined time after the bar code data is transmitted from the control unit 8, the control unit 8 turns off the internal power supply.

In this way, unnecessary power consumption can be eliminated in the bar code reader 1 of the gun scanner type.

[0029]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is an explanatory diagram of the apparatus, and FIG. 3 is a control sequence diagram. In the figure, the same reference numerals as those in FIG. 5A denotes a light emitting diode (LED), 11 denotes a data demodulation unit, and 12 denotes a data search unit.

The gun scanner type bar code reader, the portable small terminal device, and the bar code interface according to the present embodiment are configured as shown in FIG. That is,
The gun scanner type barcode reader 1 includes a reading unit 7, a control unit 8, an LED 5A, and a trigger switch 6. The portable small terminal device 2 includes an input processing unit 9 and a battery 4, and the input processing unit 9 includes a data demodulation unit 11 and a data search unit 12.

The bar code interface 10
Power supply (Vcc), bar code data (D
T), a lamp control signal (LAMP), and GND. Among the above components, the reading section 7 reads a barcode, and the trigger switch 6 is a switch for starting / stopping the reading of a barcode.

The light emitting diode (LED) 5A is for visually confirming the reading of the bar code, and the control unit 8 demodulates the read bar code and converts it again into a bar code suitable for the bar code interface 10. To perform transmission or control of each unit.

The data demodulation unit 11 demodulates the bar code sent via the bar code interface 10. The data search unit 12 converts the demodulated bar code data into master data (not shown). The search is performed to check whether the barcode data is normal.

The battery 4 is a power supply (built-in power supply) for supplying power to each unit in the portable small terminal device 2 and for supplying power to each unit in the gun scanner type bar code reader 1. "Power (Vcc)" in the barcode interface 10 is power supplied to the gun scanner type barcode reader 1, and "GND" is its ground side. The bar code data (DT) is bar code data transmitted from the control unit 8 to the input processing unit 9,
The lamp control signal (LAMP) is a signal sent from the input processing unit 9 to the control unit 8.

Hereinafter, the power supply control method in FIG. 2 will be described with reference to the control sequence diagram in FIG. First, when the portable small terminal device 2 enters the data input processing state,
The power is turned on in the input processing unit 9, and the power (Vcc) is also supplied to the gun scanner type barcode reader 1 via the barcode interface 10. Thus, the input processing unit 9 waits for data input. On the other hand, the power supply (Vcc) is input to the control unit 8 to supply power to each unit of the gun scanner type bar code reader. This time is shown in FIG.
And the time T _1.

In this state, when the trigger switch 6 is turned on at time T ₂ , power is supplied to each section in the gun scanner type bar code reader 1, and the reading section 7 starts reading the bar code. Thereafter, when the barcode is read, the control unit 8 demodulates (analyzes) the barcode data. After the demodulation completion, at time T ₃ through T _4, demodulates (analysis) have been converted data back into the bar code data (signal conversion), a portable small terminal device 2, the bar code data (DT) Send.

In this case, the conversion to the barcode data again is a process performed to match the barcode data format of the barcode interface 10. That is, the signal is converted into barcode data in a format that can be received by the input processing unit 9 and then transmitted.

If the bar code cannot be read, the control section 8 immediately turns off the internal power supply (power saving mode). After that, the bar code is read by operating the trigger switch 6 again.

The bar code (DT) transmitted as described above is received by the input processing unit 9 in the portable small terminal device 2 (T _{3 to} T ₄ ). Thereafter, between times T _{4 and} T _5, the received barcode data is demodulated (analyzed) by the data demodulation unit 11 and the master data is searched by the data search unit 12 to obtain the received barcode data. Check whether the data is normal data.

When the above-mentioned check shows that the received data is normal data, the input processing section 9 turns on the lamp control signal (LAMP). When the lamp control signal (LAMP) is turned on, the control unit 8 immediately turns on the light emitting diode (LED) 5A as a confirmation lamp (T ₆ ).

Thereafter, the control unit 8 controls the light emitting diode 5
After lighting A for a certain period of time, ₇Automatically inside
Turn off the power and turn on the light emitting diode 5A
(Switch to power saving mode). The time T_Three~ T_FourIn ba
-After sending the code data,
If the control signal (LAMP) does not turn on, the control unit 8
Turn off the internal power (switch to power saving mode).

The light emitting diode 5A is turned on at the rising edge (T ₆ ) of the lamp control signal (LAMP), and the turning off time is controlled independently of this signal. next,
When you turn off the power supply (Vcc) at time T _8, it stops all operations.

[0043]

As described above, the present invention has the following effects. (1) Operability and portability are improved because it is not necessary to have a battery on the gun scanner type barcode reader side.

(2) Whether or not the bar code has been read normally can be visually confirmed with a confirmation lamp. (3) Only one power supply is required to be supplied from the portable small terminal device to the gun scanner type bar code reader. That is, it is not necessary to separately prepare the confirmation lamp and the bar code demodulation.

(4) By performing power saving control, wasteful power consumption is reduced. Therefore, the life of the battery is prolonged.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is an explanatory diagram of an apparatus according to an embodiment of the present invention.

FIG. 3 is a control sequence diagram in the embodiment of the present invention.

FIG. 4 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gun scanner type barcode reader 2 Portable small terminal device 4 Battery 5 Confirmation lamp 6 Trigger switch 7 Reading unit 8 Control unit 9 Input processing unit 10 Barcode interface

Claims (3)

[Claims] 1. A bar code reader connected to a terminal device via an interface, at least a reading unit for reading a bar code, and a confirmation lamp for confirming a reading state of the bar code, wherein the read bar code is demodulated. A method of controlling a barcode reader that transmits barcode data to a terminal device via a rear interface, wherein when the terminal device receives barcode data transmitted from the barcode reader, the received barcode data is normal. A method of controlling a bar code reader, comprising checking whether the data is data, and if the data is normal, sending a control signal to the bar code reader and turning on the confirmation lamp. 2. The bar code reader control method according to claim 1, wherein when the bar code is successfully read by the bar code reader, the control signal is not received within a predetermined time after transmitting the bar code data to the terminal device. 2. The bar code reader according to claim 1, wherein the power supply is stopped, and when the control signal is received, the power supply is stopped after turning on the confirmation lamp for a predetermined time. Control method. 3. A bar code reader connected to the terminal device via an interface, and at least a reading unit for reading a bar code, and a confirmation lamp for confirming a reading state of the bar code, wherein the read bar code is demodulated. A method of controlling a barcode reader that transmits barcode data to a terminal device via a rear interface, wherein when the terminal device receives barcode data transmitted from the barcode reader, the received barcode data is normal. Check if the data is normal, and if it is normal bar code data, send a control signal to the bar code reader, turn on the confirmation lamp, and supply power to the bar code reader from the terminal device A method of controlling a bar code reader.