JPH0377940B2 - - Google Patents

Description

[Detailed description of the invention] (a) Technical field This invention relates to automatic teller machines (hereinafter referred to as ATMs).
That's what it means. ), etc., and relates to an optical sensor check device for monitoring the operation of devices such as devices.

(b) Prior art and its drawbacks The current configuration of ATMs, etc.
The system employs a combination of mechanical processing devices (hereinafter referred to as "mechanical components") that transport and eject banknotes, and which are controlled by a main controller. Each mechanical component has optical sensors placed at various locations to monitor its mechanical operations. Therefore,
It is very important to check for defects in these optical sensors during maintenance of ATMs and the like. Defective optical sensors include deterioration of the light receiving part, light emitting part, and accumulation of dust on the optical axis, but since a considerable number of optical sensors are used inside an ATM, it is necessary to check all of them manually. The disadvantage was that it required a lot of effort.

(c) Object of the Invention In view of the above-mentioned current situation, it is an object of the present invention to provide an optical sensor check device that can check the optical sensors of all mechanical components using a main control section.

(d) Structure of the Invention The present invention can be summarized as a check command sending means for sending a check command for an optical sensor that monitors the operation of each mechanical component to a main control unit of an ATM or the like during its idle time. and a half-dark device that dims the light emitting part of the optical sensor when the command is input to each of the control parts, and a half-dark device that dims the light emitting part of the optical sensor when the light emitting part is dimmed. A sensor check means for determining whether or not the optical sensor The present invention is characterized in that a display means is provided for displaying a notification when an abnormality is notified.

(e) Embodiment FIG. 1 is a block diagram of an ATM that is an embodiment of the present invention. This ATM consists of a master and slave system. A master M and a plurality of slave mechanical components are connected (in this figure, two mechanical components MC1 and MC2 are shown). Master M is CPU1,
It consists of RAM2, ROM3, interface 4, and monitors 5 and 6. Mechanical component (here mechanical component
The configuration of MC1 is shown, but the other configurations are similar. )CPU7,
It is composed of a ROM 8, a ROM 9, an interface 10, an optical sensor S connected to this interface 10, and the like. Master M's CPU1 is
Control commands are output to each mechanical component based on data and programs stored in the RAM 2 and ROM 3 and input from an input device (not shown). Mechanical components receive data from RAM8 and ROM9 based on instructions from master M.
Read the program, etc., and open the interface 10.
The optical sensor S, a drive device (not shown), etc. are controlled via the controller.

FIG. 2 is a block diagram of the optical sensor of the above embodiment. The light emitter L is connected to the collectors of the transistor TR1 and the transistor TR2. The base of transistor TR1 is interface 1
0, and the emitter is grounded via a resistor R. The base of the transistor TR2 is supplied with the output of the interface 10 inverted by the inverter INV, and the emitter is grounded via a resistor r. These transistors TR1, TR2
is an NPN transistor. Therefore, when the base input is "H", the collector and emitter of this transistor are electrically connected, and when it is "L", they are cut off. here,
Since the output of the interface is normally "L", the light emitter L is usually a transistor TR2 and a resistor r.
interface 10
When “H” is output from the transistor TR
1. Connected to the power supply through resistor R. The “H” output from this interface 10 is the master M
CPU1 is a mechanical component CPU
This is what is output when a check command, which will be described later, is output to 7. The resistance value R of the resistor R is set to be as follows: R=√2r+(√2−1)Rl, where r is the resistance value of the resistor r, and Rl is the resistance value of the light emitter L. As a result, when the check command is output, that is, when the light emitter L is connected to the power supply through the transistor TR1 and the resistor R, the power consumption of the light emitter L is equal to the power consumption of the light emitter L connected to the power supply through the transistor TR2 and the resistor R. 1/2 of the power consumption when Checking by reducing the power consumption in this way means that if the optical sensor is normal, it will work well even if the light is reduced in this way, but if the light emitting part or light receiving part has deteriorated or dust has accumulated, etc. This is to check if there is any abnormality, as it may not work. Note that the light receiving section P is also connected to the interface 10.

FIG. 3 is a flowchart showing the operations of the CPU 1 and CPU 7 of the above embodiment. At step n1 (hereinafter step ni will be simply referred to as ni), the CPU 1 outputs a sensor check command to the CPU 7. n2
Then, judge the response from the CPU 7, and if the response is "Sensor abnormality", proceed to n3. At n3, a message indicating that there is an abnormality in the sensor is displayed on the monitors 5 and 6.
When the operation of n3 is finished, the CPU7 determined by n2
If the response from is "No abnormality in the sensor.", proceed to the next operation. These n1 to n3 are performed during idle processing. Next, when the CPU 7 receives a sensor check command from the CPU 1, it outputs "H" through the interface 10, closes the transistor TR2, and turns on the transistor TR1. As a result, the light emitter L is lit with half the normal power. Check the level of the light receiving part of the optical sensor at that time (n5), and if it is in the cut-off state, the accuracy of this optical sensor has decreased, and the CPU responds with "Sensor abnormality".
1, and if the light-emitting body L is in the light-receiving state as when it is lit with normal power, a response of "no abnormality in the sensor" is transmitted to the CPU 1 (n6). n1, n5, and n6 correspond to the check command sending means, sensor check means, and check response means of the present invention, respectively, and
INV, transistor TR1, and resistor R correspond to the half-dark device of this invention. In addition, monitor 5,
6 and n3 correspond to the display means of this invention.

The optical sensor check device with the above configuration can be used at ATMs.
etc., it is possible to make use of idle time and have the master CPU check all the optical sensors used in the ATM with a minimum increase in circuitry.

(f) Effect of the Invention As described above, according to the present invention, the master control unit of an ATM checks all the optical sensors used in the ATM during idle time, and if there is an abnormal optical sensor, it displays it on the monitor. This has the advantage of saving the time and effort of staff, etc.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an ATM that is an embodiment of the present invention, FIG. 2 is a block diagram of an optical sensor of the above embodiment, and FIG. 3 is a flowchart showing the operation of the CPU of the above embodiment. M...Master, MC1, MC2...Mechanical component, 1,7...CPU, 5,6...
Monitor, S...Optical sensor, L...Light emitter, TR
1, TR2...transistor, R, r...resistance.

Claims (1)

[Scope of Claims] 1. A plurality of processing units that perform mechanical processing such as conveyance of cards and discharge of banknotes and monitor the operating status thereof using optical sensors, and a main unit that collectively controls the plurality of processing units. In the transaction processing device comprising a control section, the main control section is provided with check command sending means for sending a check command of the optical sensor to each processing section during its idle time, and each of the control sections A half-dark device that dims the light emitting part of the optical sensor when a command is input, and a sensor that determines whether the optical sensor is abnormal based on whether or not the light receiving part is blocked when the light emitting part is dimmed. A check means and a check response means for notifying the main control section of the determination result are provided, and further, when the main control section is notified of an abnormality of the optical sensor by the check response means from each processing section, 1. A sensor check device for a transaction processing device, characterized in that it is provided with a display means for displaying.