KR20000000831A - REMOTE power BLOCKING DEVICE OF ELECTRONIC CASH REGISTER - Google Patents

Abstract

PURPOSE: A remote power blocking device of an electronic cash register is provided to prevent unnecessary electric power waste by preventing power from being fed for a long time because of a user's carelessness. CONSTITUTION: The electronic register system comprises: an electronic unit for generating a direct current voltage by reducing pressure, rectifying and flattening an alternating current power; a power switch installed between the alternating current power and the power unit; a switch cutting unit(140) for turning off the power switch by compulsion; an inline driving unit(130) for controlling a data communication with a master ECR.

Description

Remote power disconnect device of electronic cash register

The present invention relates to a remote power shut-off device of an electronic cash register. In an inline system in which a plurality of electronic cash registers can be interconnected through an inline, a power supply of each ECR terminal at a host terminal (master ECR) at the end of sale is provided. The present invention relates to a remote power shut-off device of an electronic cash register that can remotely turn off the device.

In general, a cash register refers to a device used to facilitate information management by processing various data accompanying product sales and informing a user of results. The range is from point of sales system to comprehensively manage distribution economy such as inventory and inventory research. Hereinafter, in the present specification, the term Electronic Cash Register (ECR), which means an electronic cash register controlled by a microprocessor, is used as a broad concept including a low-end cash register to a POS terminal.

In the case of large stores, a number of ECRs are interconnected through an interface line to form an inline system, and each ECR manages a part of sales information files in RAM. In the inline system, a master ECR having collection management and transaction information distribution management functions of sales information files for each ECR may be designated, and the remaining ECRs other than the ECR designated as the master are collectively referred to as slave ECRs.

In the conventional in-line system of the cash register, when the user leaves the office after closing a transaction, each ECR user directly switches off the power to turn off the ECR. However, when the power of the ECR is not turned off due to user's carelessness or the like, a problem arises in that power is unnecessarily consumed during an unused time.

Accordingly, the present invention has been made to solve the above-described problems, the object of which is to turn off the driving power of each ECR connected on the inline system in accordance with the closing of the transaction of all slave ECRs connected to the system remotely from the master ECR. It is an object of the present invention to provide a remote power cut-off device of an electronic cash register that can turn off the driving power.

In order to achieve the above object, the remote power cut-off device of the electronic cash register according to the present invention is an electronic cash register system capable of performing a cash register operation by performing data communication with a master ECR and another ECR terminal connected to a communication network. A power supply unit for generating a DC voltage by decompressing, rectifying and smoothing a commercial AC power supply, a power switch interposed between the commercial AC power supply and a power supply unit, a switch switching unit forcibly turning off the power switch, and mutually with the master ECR. An inline driver for controlling data communication and determining whether a power off signal is input from the master ECR through the inline driver, and controlling the switch switching unit to automatically turn off the power switch when a power off signal is input. It has a microprocessor that outputs a signal Characterized in that eojineun.

The microprocessor of the remote power shut-off device of the electronic cash register according to the present invention drives the switch switching unit to turn off the power switch after a predetermined time elapses when it is determined that a power-off signal is input from the master ECR. It characterized in that to control.

Furthermore, the switch switching unit of the remote power cut-off device of the electronic cash register according to the present invention is a slide switch, a permanent magnet located on the contact line of the slide switch, a coil slidably mounted around the permanent magnet and wound around it. A magnetic body that becomes an electromagnet when a current is applied to the magnetic body and is repulsed by the permanent magnet, an actuating rod that is fixed to an end of the magnetic body to turn off the slide switch when moving forward, and the magnetic body when the element of the magnetic body It is characterized by consisting of a tension spring pulling to the side.

1 is a system block diagram showing the configuration of a master ECR for implementing the present invention;

Figure 2 is a block diagram showing the configuration of a cash register with a remote power off device according to the invention,

3 is a schematic mechanism configuration diagram of the switch switching unit shown in FIG. 1.

*** Explanation of symbols for the main parts of the drawing ***

10,120: microprocessor, 20: key input,

30: Rom, 40: Ram,

50: printer, 60: display,

70,130: inline drive unit, 80,110: power supply unit,

112: first regulator, 114: second regulator,

132: the indicator driver, 134: the printer driver,

136: drawer drive unit, 140: switch switching unit,

151: permanent magnet, 152: tension spring,

153: electromagnet, 154: working rod,

155: pressing member, 160: slide switch,

Q1: Transistor, D1: Diode

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the remote power off device of the electronic cash register according to a preferred embodiment of the present invention.

Figure 1 shows a system block diagram showing a schematic configuration of a master ECR for implementing the present invention. As shown in FIG. 1, a master ECR system for implementing the present invention includes a key input unit 20 for generating a mode designation signal and various key codes for money registration, and a key received while kissing the key input unit 20. The microprocessor 10 which designates the mode of the ECR according to the code and performs various functions in the designated mode, the ROM 30 in which the system operation program is embedded, and the various data generated during the program or transaction set by the user Under the control of the RAM 40, the microprocessor 10, and the printer 50 for issuing documents for the customer's receipts and various processing results, and displaying various information related to money transactions under the control of the microprocessor 10. Mutual data between the display unit 60, the power supply 80 for supplying power to the entire system, and other ECR terminals and microprocessors 10 connected by in-line. It is provided with an inline drive unit 70 for controlling communication.

In the above-described configuration, the key input unit 20 is provided with a remote power off key (not shown) for turning off the power of each ECR terminal connected on the inline after closing the transaction, the microprocessor 10 closed the transaction. When the input signal of the remote power off key is determined, the power off signal is transmitted to each of the ECR terminals connected to the inline through the inline driver 70. Each ECR terminal receiving the power off signal from the master ECR turns off the operation by cutting off the input power by driving a switch switch to be described later.

Figure 2 is a schematic block diagram showing the configuration of a cash register system equipped with a remote power off device according to the present invention. As shown in FIG. 2, the remote power shut-off device of the cash register according to the present invention displays a variety of information related to a transaction under the control of the microprocessor 120 and the microprocessor 120 for controlling the overall operation of the cash register. Under the control of the indicator driver 132, the microprocessor 120, the printer driver 134 for driving a printer for issuing documents for customer receipts and various processing results, and for opening and closing the cash drawer under the control of the microprocessor 120. By controlling the ripple included in the drawer driving unit 136, the power supply unit 110 for rectifying and smoothing and reducing the commercial AC power to generate a DC voltage including ripple, and the unstable DC voltage generated from the power supply unit 110. The first regulator 112 that generates a more stable DC voltage (for example, 24VDC) and the DC voltage generated by the power supply unit 110 are highly stable logic voltages (V). A second regulator 114 which converts and outputs to CC, a switch switching unit 140 which automatically cuts off power under the control of the microprocessor 120, and a master ECR connected by an inline phase and other ECR terminals and microprocessors ( And an inline driver 130 for controlling mutual data communication with 120.

At this time, the switch switching unit 140 is a transistor Q1 and a collector terminal of the transistor Q1 and the DC voltage source VDC connected to the corresponding output terminal P1 of the microprocessor 120 through the current limiting resistor R1. An electromagnet 153 connected therebetween and a reverse current prevention diode D1 for absorbing back electromotive force generated during current interruption of the electromagnet coil. In FIG. 2, reference numeral 160 denotes a slide switch used as a power switch. The slide switch 160 may be forcibly turned off by an operation of the electromagnet 153.

In addition, when a power switch implemented by the slide switch 160 is turned on by a user's operation, a predetermined DC voltage VDC is generated by the first regulator 112 to display the indicator driver 132, the printer driver 134, and the drawer. The power supply is provided to the driving unit 136 as an operating power source, and the logic voltage VCC is generated by the second regulator 114 and supplied to the microprocessor 120 to perform a predetermined operation.

3 is a schematic configuration diagram of the switch switching unit shown in FIG. 2. As shown in FIG. 3, the mechanical configuration of the switch switching unit according to the present invention is slidably mounted with respect to the permanent magnet 151 and the permanent magnet 151 positioned on the contact movement line of the slide switch 160. End of the working rod 154 and the working rod 154 fixed to the end of the magnetic body 153, the magnetic body 153, which becomes an electromagnet and is repulsed by the permanent magnet 151 when the current is applied to the coil wound around the end. The pressing member 155 of the rubber material and the tension spring 152 for pulling the magnetic material 153 toward the permanent magnet 151 at the time of the element of the magnetic material 153 attached to the.

Hereinafter, the operation of the remote power shut-off device of the electronic cash register of the present invention having the above-described configuration will be described in detail.

First, when the user turns on the power switch of a cash register implemented as a slide switch to start a cash register operation using each ECR terminal, the microprocessor 120 clears the internal timer Ti, and also output terminal. Outputs a low level signal through. Next, the microprocessor 120 scans the key input unit (not shown) to determine whether there is a key input, and when there is a key input, performs a money registration operation corresponding to the input key. In addition, the microprocessor 120 checks a signal input from the inline driver 130 to determine whether a power off signal is input from the master ECR. At this time, if the user wants to turn off the power of all the ECR terminals connected to the cash register system in the master ECR, for example, to close the money registration work, the power-off signal is output to the respective ECR terminals through the inline driver 130. .

Therefore, the microprocessor 120 of each ECR terminal determines whether a power off signal is input from the master ECR through a corresponding input terminal P2 connected to the inline driver 130, and when the power off signal is input, When the timer Ti is increased to determine that a predetermined reference time elapses, for example, 5 seconds, the transistor Q1 is turned on by outputting a high level signal to the output terminal P1 connected to the switch switching unit 140. At this time, the reference time of the internal timer that sets the time point for outputting the power-off signal to the switch switching unit 140 is required for all ECR terminals connected to the inline system to receive the power-off signal output from the master ECR to wait for driving. This time is set to turn off the power of each ECR terminal at the same time.

On the other hand, as the transistor Q1 is turned on, the magnetic body 153 of the switch switching unit 140 instantly becomes an electromagnet, and the operating rod 154 is advanced by the repulsive force generated between the electromagnet and the permanent magnet so that the slide switch. It will momentarily push 160. Accordingly, the power of the cash register is automatically cut off. When the power is cut off, the magnetic body 153 is demagnetized and the repulsive force is released. Then, the actuating rod 154 is retracted by the action of the tension spring 152 to retreat from the outside. The power can be turned on again.

The remote power cut-off device of the electronic cash register according to the present invention is not limited to the above-described embodiments, and may be variously modified and implemented within the range permitted by the technical idea of the present invention. For example, the same type of switch as in the above-described embodiment may be implemented by a switch other than a slide switch, for example, a push button switch.

As described above, the remote power off device of the electronic cash register according to the present invention is powered off to remotely control the power of each ECR terminal from the master ECR on the inline system of the cash register using a plurality of ECRs connected through a communication network. When the signal is output, the switch switching unit is operated at each ECR terminal to automatically turn off the input power.

Therefore, when the ECR user wants to turn off the power of a plurality of ECRs connected on the inline system by the remote power cut-off device of the electronic cash register according to the present invention, the ECR user can simultaneously turn off the power of each ECR. The power of the entire ECR can be easily cut off by simple key operation, and the problem of unnecessary power waste can be solved by preventing the power from being left for a long time due to user's carelessness.

Claims (3)

An electronic cash register system capable of performing a cash register by performing data communication with a master ECR and another ECR terminal connected to a communication network, Power supply unit for generating a DC voltage by reducing, rectifying and smoothing the commercial AC power, A power switch interposed between the commercial AC power supply and the power supply unit; A switch switching unit for forcibly turning off the power switch; An inline driving unit controlling mutual data communication with the master ECR, A microprocessor configured to determine whether a power-off signal is input from the master ECR through the inline driver, and output a control signal to the switch switching unit to automatically turn off the power switch when a power-off signal is input; Remote power cut-off device of an electronic cash register, characterized in that made. The electronic money processor of claim 1, wherein the microprocessor controls driving of the switch switching unit to turn off the power switch after a predetermined time elapses when it is determined that the power-off signal is input from the master ECR. Remote power off of the register. The method of claim 1 or 2, wherein the switch switching unit Slide switch, Permanent magnet located on the contact line of the slide switch, A magnetic body slidably mounted with respect to the permanent magnet and subjected to electromagnetism when the current is applied to a coil wound around the permanent magnet, An operating rod fixed to an end of the magnetic material to turn off the slide switch when moving forward; And a tension spring that pulls the magnetic material toward the permanent magnet in the magnetic element element.