JPH0664651B2 - Electronic cash register - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to P in a POS (point of sale) system.
The present invention relates to an electronic cash register used for OS terminals and the like.

[Prior Art] Some conventional electronic cash registers have a function of generating an alarm sound by a buzzer circuit when a key is pressed on the keyboard, a key input error occurs, or a memory error occurs due to overflow of a storage unit. There is something. By providing this function, it is possible to reliably notify the cashier, who is in charge of operating the electronic cash register, of an error occurrence and the like, and it is possible to improve operability.

[Problems to be Solved by the Invention] However, in the conventional electronic cash register of this type, the volume of the alarm sound generated by the buzzer circuit could be changed by adjusting the external volume. The tone and cyclic sound were fixed and could not be changed arbitrarily. For this reason, it may be difficult to judge what kind of error has occurred only by hearing the alarm sound. In addition, when using the electronic cash register at a store that uses a POS system, multiple electronic cash registers are placed at the accounting location, so which electronic cash register generated the alarm sound? Sometimes I don't understand. As a result, there has been a delay in responding to the occurrence of an error and the like, resulting in a decrease in operability.

Therefore, in the present invention, it is possible to arbitrarily set the volume, tone and cyclic sound of an alarm sound for an alarm occurrence event, and it is possible to generate an alarm sound that matches the cashier's environment. It is an object of the present invention to provide an electronic cash register which can promptly inform the operator and improve the operability.

[Means for Solving Problems] As shown in FIG. 1, the first invention of the present application sets three pieces of information for respectively determining the volume, tone and cyclic sound of an alarm sound corresponding to each alarm occurrence event. An alarm sound setting table 1 for setting combined alarm sound data is provided, and when an alarm occurrence event occurs, the data reading means 2
The alarm sound setting table 1 is searched by to read the alarm sound data corresponding to the alarm occurrence event, and the alarm sound generation means 3 is based on the read alarm sound data.
Is used to determine the volume, tone and cyclic sound of the alarm sound, and the buzzer circuit 4 generates the alarm sound.

The second invention of the present application is a combination of the first invention with three pieces of information for timely determining the alarm sound volume, tone and cyclic sound for each alarm occurrence event in the alarm sound setting table 1. Data input means 5 for inputting as alarm sound data is added.

[Operation] With the electronic cash register according to the first aspect of the present invention, when an alarm occurrence event occurs, alarm sound data corresponding to the alarm occurrence event is read from the alarm sound setting table, and based on the alarm sound data. The volume, tone and cyclic sound of the alarm sound are determined, and the alarm sound is generated by the buzzer circuit.

In the case of the electronic cash register which takes the second means, the alarm sound setting table is timely combined with three pieces of information for determining the volume, tone and cyclic sound of the alarm sound for each alarm occurrence event. Can be input as alarm sound data.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram showing the configuration of the electronic cash register of this embodiment. In the figure, a central processing unit (hereinafter abbreviated as CPU) 10 has a built-in arithmetic circuit, memory control circuit, etc., and performs various arithmetic processes based on input data from a keyboard 11 and the like, and an address bus 12,
ROM 15 for storing fixed data such as programs for executing various operations via data bus 13 and control line 14.
And RAM1 that stores variable data such as arithmetic processing data
6 and operate. Further, a keyboard input circuit 17 for inputting a key signal from the keyboard 11, a control key input circuit 19 for inputting a command signal from a control key 18, a product name, sales amount, total amount, deposit amount, etc. of a sale product are displayed. A display / control circuit 21 for driving a display 20 for displaying characters or the like corresponding to display data, a printer 22 for printing a receipt and a journal, and a printer / drawer for controlling opening / closing of a drawer 23. The data bus 13 includes a control circuit 24 and a buzzer circuit 25 that generates an alarm sound in response to an alarm occurrence event.
And connected to the CPU 10 via the control line 14.

As shown in FIG. 3, the keyboard 11 has a numeric key 31 for inputting the sales amount and the number of items sold, and a department key for inputting a department code for classifying the sales products.
32, subtotal key 33 for calculating subtotal amount and displaying it on the display 20, deposit / cash total key for declaring deadline for registration
34. Various function keys such as a clear key 36 are provided in addition to a product registration key of a PLU key 35 for declaring that the numerical data is a PLU code.

The control key 18 is a control switch for controlling the on / off of the power source and for instructing the CPU to start each of the business modes such as “registration”, “payment”, “setting”.

In the RAM16, a product registration file for cumulatively registering the sales price, sales points, etc. of sales products by department code or PLU code, and an amount totalizer that calculates the total amount of one registration by adding the sales amount, etc. As shown in Fig. 4, key input, key input error, memory error,
Each alarm occurrence event such as a printer error due to a paper jam of the printer is sequentially stored from address 1, and the alarm sound setting table 41 for setting the alarm sound data corresponding to the alarm occurrence event, the address corresponding to the alarm occurrence event Address memory 42, which stores
An alarm register 43 is formed in which "1" is set when the alarm sound is not a single sound.

The alarm sound data has an 8-bit format as shown in FIG. 5, of which 0 bits and 1 bit are volume control bits A, and 4 types of volume are determined according to the following table 1 and 2 bits are set. And 3 bits as cyclic control bit B and 4
The bit is defined as a single tone control bit B ', and each of the four types of cyclic tones and single tone is determined according to the following Table 2, and 5 bits and 6 bits are defined as tone control bits C, and the four types of tones are defined according to the following Table 3. 7 bit D is used for on / off control (0: on, 1: off) of the alarm sound.

The alarm sound data of the alarm sound setting table 41 can be arbitrarily set and changed using the keyboard 31.

FIG. 6 is a functional block diagram of the buzzer circuit 25.
This circuit 25 is mainly a volume control circuit 51 for adjusting the volume of the alarm sound, a cyclic sound control circuit 52 for adjusting the single and cyclic sounds of the alarm sound, a tone control circuit 53 for adjusting the tone of the alarm sound,
Each control circuit 51-53 comprises a control port 54 for controlling each control circuit 51-53 based on the alarm sound data given from the CPU 10 via the bus line 13.
A corresponding alarm sound is generated from the speaker 55 according to the control amount by the. In FIG. 6, G is an OR gate, R1 and R2 are resistors, T is a transistor, D is a diode, and CS is a chip select signal.

Here, each control circuit in the buzzer circuit 25
As a concrete example for realizing 51 to 53, a circuit configuration as shown in FIG. 7 can be considered. That is, the volume control circuit 51 outputs the "L" signal from the output terminal Y0 when the two inputs (A, B) from the 0 bit and the 1 bit in the control port 54 are (0, 0), and (0, 1 ), The Y1 outputs an “L” signal, the (1,0) outputs a Y2 “L” signal, and the (1,1) outputs a Y3 “L” signal. The output terminals Y0 to Y3 of the register 61 are connected to the base terminals of the drive transistors T0 to T3 via the drivers, respectively. Further, r0 to r3 are connected to the collector terminals of the respective transistors T0 to T3 in descending order of resistance value, and the emitter terminal is connected to the base terminal of the amplification transistor Tr. Then, when (0,0) is applied to the input terminals (A, B) of the register 61, a small current flows into the amplification transistor Tr to reduce the volume, and (1,1) is input to the input terminals (A, B). ) Is applied, a large current flows into the amplification transistor Tr and the volume becomes loud.

Further, the cyclic sound control circuit 52 operates in the same manner as the register 61, and the gate terminal G receives the signal "1".
Is provided with a register 62 for inhibiting the operation, the output terminal Y0 of the register 62 is connected to both input terminals of the AND gate g0, and the output terminals Y1 to Y3 are AND gates g1 to g3.
One of the input terminals is connected to one of the input terminals, and a signal whose cyclic becomes shorter is applied to the other from the gate g1. The outputs of the AND gates g0 to g3 are sent to the gate circuit G1. In addition, the single tone generating circuit 70 has a control port 54 of 4
Operates when the bit output is "1", and outputs 2 bits and 3
The gate circuit G1 outputs a single tone signal according to the bit output state.
It will be output to. Then, when (0,0,0) is applied to the terminals (A, B, G) of the register 62, the gate g0 is turned on and a continuous signal is output to generate a continuous alarm sound. , (B, G) when (1,1,0) is applied to the gate
When g3 is turned on, a short cyclic signal flows and becomes a short cyclic alarm sound. If "0" is applied to the terminal G, the gates g0 to g3 do not operate, and the single tone generation circuit
70 operates to generate a single tone having a length corresponding to the cyclic tone control bit B.

In addition, the tone control circuit 53 has
A register 63 that operates in the same manner as 61 is provided. Each output terminal Y0 to Y3 of the register 63 is connected to one input terminal of the AND gates g11 to g13, and the other one has a frequency increasing from the gate g10. A signal is applied. The outputs of the AND gates g10 to g13 are sent to the gate circuit G2. Then, when (0,0) is applied to the terminals (A, B) of the register 63, the gate g10 is turned on and a low-frequency (for example, 800 Hz) signal flows to generate a low-temperature alarm sound, and the terminals (A, B) ) To (1,1)
Is applied, the gate g13 is turned on and a high frequency (eg 150
0Hz) signal flows and becomes a high temperature alarm sound.

In FIG. 7, the gate circuit G4 receives the reset signal from the single tone generating circuit 70 or the CPU 10 from the control port 5
It is intended to be applied to the reset terminal of 4.

Then, the CPU 10 is programmed so as to operate as shown in FIG. 8 when a predetermined alarm occurrence event occurs. That is, as ST1, the alarm setting table 41 in the RAM 16 is searched and it is determined whether or not the alarm sound data is set corresponding to the alarm occurrence event. If set, the address of the corresponding data is stored in the address memory 42 as ST2, and the corresponding data is output to the control port 54 as ST3. In ST4, it is determined whether or not the cyclic sound data in the data specifies a single sound, and if the data specifies a single sound, the process ends. On the other hand, in the case of the data designating the cyclic sound, "1" is set in the alarm register 43 as ST5 and the input of the clear key 36 is waited. If the clear key 36 is input in ST6, the alarm sound data corresponding to the address in the address memory 42 is read, and the 8th bit is set to "0" and output to the control port 54. After that, the alarm register 43 is cleared and the process ends.

In the present embodiment configured as described above, the cashier uses the keyboard 11 in the “setting” business mode to set the alarm sound setting table 41 in the “setting” work mode so that the alarm sound generated by the alarm occurrence event can be emitted as a sound suitable for the user's environment. 0-7
Set and input the 8-bit alarm sound data of. In this case, the volume, cyclic sound, and tone can be set individually for each of 4 types, so a maximum of 64 can be set by combining these.
You can set different types of alarm sounds. In this state, if a key input error now occurs, the alarm sound setting table 41 indicating the key input error is generated by the action of the CPU 10.
The address "2" is stored in the address memory 42, and the corresponding address sound data, for example, "01101111", is output to the control port 54. Then, the volume control circuit 51 is controlled based on the 0-bit and 1-bit data "11" of the above data, and the cyclic sound control circuit 52 is controlled based on the 2-bit to 4-bit data "011". The tone control circuit 53 is controlled based on the bit and 6-bit data "11". Further, ON / OFF of the alarm sound is controlled by 7-bit data “0”. Then, the loudspeaker 55 emits a loud and short cyclic sound and a high-temperature alarm sound. After that, when the clear key 36 is input, the 8th bit data of the above data, that is, the 7th bit "1" becomes "0" and is output to the control port 54 again. Then, the alarm sound is canceled.

As described above, according to this embodiment, the alarm sound setting table 41 stores the alarm sound volume corresponding to the alarm occurrence event,
By setting the 8-bit alarm sound data that determines the cyclic sound and tone, when the alarm occurrence event occurs, the alarm sound determined for each event (maximum 64 types)
Is emitted. Therefore, the cashier can easily determine the type of error only by hearing the alarm sound. Also, PO
When the device of the present embodiment is applied as a POS terminal in the S system, by setting an alarm sound that is different from that of the adjacent electronic cash register, even if a plurality of electronic cash registers are installed, the electronic device of its own can be used. The alarm sound emitted from the expression cash register can be easily recognized. Therefore, it is possible to promptly deal with an error or the like and improve operability.

Further, according to the present embodiment, since the alarm sound data can be freely set and changed using the keyboard 11, it is possible to generate the alarm sound according to the cashier's environment.

The present invention is not limited to the above embodiment,
Needless to say, various modifications can be made without departing from the scope of the present invention.

[Effects of the Invention] As described in detail above, according to the present invention, it is possible to arbitrarily set the volume, tone, and cyclic sound of an alarm sound for an alarm occurrence event, and to generate an alarm sound that matches the cashier's environment. It is possible to provide an electronic cash register that can promptly inform the cashier of the generation and content of an alarm sound and improve the operability.

[Brief description of drawings]

FIG. 1 is a block diagram showing a functional configuration of an electronic cash register of the present invention, FIGS. 2 to 8 are diagrams showing an embodiment of the present invention, and FIG. 2 is a block of an electronic cash register. Configuration diagram, FIG. 3 is a diagram showing the key arrangement in the keyboard, FIG. 4 is a diagram showing the main part of the RAM, and FIG.
FIG. 6 is a diagram showing the structure of alarm sound data, FIG. 6 is a block configuration diagram of a buzzer circuit, FIG. 7 is a specific circuit configuration diagram of the buzzer circuit, and FIG. 8 is an operation when an alarm occurrence event occurs in the CPU. It is a flow chart. 10 …… CPU, 14 …… ROM, 15 …… RAM, 25 …… Buzzer circuit, 36 …… Clear key, 41 …… Alarm sound setting table, 42 …… Address memory, 43 …… Alarm memory, 51
...... Volume control circuit, 52 …… Cyclic sound control circuit, 53 …… Tone control circuit, 54 ……
Control port, 55 …… Speaker.

Claims (2)

[Claims] 1. An electronic cash register having a function of generating an alarm sound by a buzzer circuit in response to a predetermined alarm occurrence event, wherein an alarm sound volume, tone and cyclic sound are generated in correspondence with each alarm occurrence event. An alarm sound setting table for setting alarm sound data, which is a combination of three pieces of information determined respectively, and the alarm sound setting table when the alarm occurrence event occurs, retrieves the alarm sound data corresponding to the alarm occurrence event. Data reading means and alarm sound generating means for determining the volume, tone and cyclic sound of the alarm sound based on the alarm sound data read by the reading means and for generating the corresponding alarm sound by the buzzer circuit are provided. Electronic cash register characterized by. 2. An electronic cash register having a function of generating an alarm sound by a buzzer circuit in response to a predetermined alarm occurrence event, wherein an alarm sound volume, a tone and a cyclic sound are generated corresponding to each alarm occurrence event. An alarm sound setting table for setting alarm sound data, which is a combination of three pieces of information to be determined, and the volume, tone, and cyclic sound of the alarm sound are determined for each alarm occurrence event in the alarm sound setting table. Data input means for inputting the three pieces of information as timely combined alarm sound data, and data reading means for searching the alarm sound setting table when the alarm occurrence event occurs and reading the alarm sound data corresponding to the alarm occurrence event. , The alarm sound data read by this reading means Electronic cash registers, characterized by comprising the alarm sound generating means for generating a corresponding alarm sound by determined the buzzer circuit volume of alarm sound, tone and cyclic sound are.