JPH0250489B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conveyor control system, and in particular to a system for controlling a conveyor, in which a teller room and a plurality of counters are connected by a common rail, and a conveyor is run on which cash, slips, etc. are placed. The present invention relates to a conveyance body control method in which the conveyance body is stopped at a predetermined position by detecting the speed of the conveyance body and performing braking control according to the detected speed in the configured counter system.

Currently, cash transactions at banks are carried out at multiple tellers at bank counters, so to investigate how much cash is being held at a bank at a certain point in time, it is necessary to look at the cash at each teller separately. You have to calculate it and then calculate whether it matches the document. Therefore, handling cash at multiple counters using current methods complicates cash management operations. Moreover, since there is cash at the counter, there is a potential danger that crime may be easily committed.

Therefore, as part of streamlining banking operations,
A cash teller room is provided at a location away from the counter, and cash is stored in bulk there. Each of the above tellers and the cash teller room are connected by a common transport rail, and cash and slips are stored on the rail. It has been proposed to move a carrier, such as a linear motor, on which an object is mounted.

However, there is only one common rail between the cash teller room and each counter.
The distance between the cash teller room and each counter varies depending on the counter, and the distance between each counter is 1.4m to 1.5m.
spaced apart by a distance of 1. For this reason, the speed of the conveyance body often differs depending on the teller, such as slowing it down near the cash teller room and speeding it up far away, making it very difficult to accurately stop the conveyance body at a predetermined position. It is difficult to

Therefore, an object of the present invention is to provide a carrier control system that improves these problems, and for this purpose, the carrier control system of the present invention has a common system between the teller room and multiple counters. In a teller system configured to have a rail and run a conveyor on which cash, slips, etc. are placed, a traveling means consisting of a linear motor for driving the conveyor, and a distance separated from the traveling means by a certain distance. a speed detecting means for detecting the speed of the conveying body traveling on the rail; a braking means for braking the traveling of the conveying body by reverse excitation or DC excitation of the primary conductor of the traveling means; A calculation unit is provided for calculating the amount of braking to be applied to the braking means according to the speed of the conveying body, and when stopping the conveying body on the traveling means, applying the braking amount to the primary conductor according to the calculated amount of braking. This is characterized by controlling the value or application time of the current.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

FIG. 1 is a schematic diagram of the conveyance body control system of the present invention, FIG. 2 is an explanatory diagram showing the conveyance body and speed detection means, FIG. 3 is a diagram showing the linear motor and the conveyance body, and FIG. 4 is an illustration of the present invention. FIG. 1 is a circuit configuration diagram of an embodiment of the invention.

In the figure, 1 and 1' are carriers, 2-1 and 2-2 are linear motor stators, 3 is a running rail, and 4
5-1 to 5-4 are sensors; 6;
6' is a bracket, 7 is a light emitter, 8 is a photoreceptor, 9
is the primary conductor of the linear motor, 10 is the secondary conductor of the linear motor, 11 is the linear motor mounting base, 12 is the carrier support frame, 13 is the bearing roller, 14 is the carrier base, 15 is cash , 16 is a carrier cover, 17 is a presser spring, 18 is a link mechanism, 19 is a solenoid, 20 is a control unit, 21 is a calculation unit, 22 is a power supply control unit, 23 is a zero-cross detection circuit unit, and 24 is a linear motor brake. This is the circuit section.

Cash is stored in a cash teller room 4, which is connected to each counter via a running rail 3. Therefore, when a customer requests cash payment at the counter, the person in charge at the counter informs the cash accounting room 4 of the amount requested by the customer. In response to this, the requested amount of cash is stored in the conveyor 1 from the cash teller room 4, and is sent by the running rail 3 to the person in charge of the counter who made the request, and the cash is delivered to the customer. will be paid.

On the traveling rail 3, stators of linear motors are arranged at appropriate distances or continuously until reaching each window. Each window is also provided with linear motor stators 2-1 and 2-2.

Next, the above-mentioned linear motor and carrier will be briefly explained based on FIG. 3.

The stators 2-1 and 2-2 of the linear motor are
It is arranged on the mounting base 11 with a gap through which the secondary conductor 10 can pass, and each stator 2-1
A primary conductor 9 is provided. A running rail 3 is arranged on the stator 2-1.

The carrier 1 consists of a base 14 and a cover 16, and a secondary conductor 10 of a linear motor is attached to the base 14 by appropriate means. There are four bearing rollers 13 on the left and right sides of the base 14, respectively.
13 is attached as shown. Further, a presser spring 17 is attached to the cover 16, and is configured to hold down cash 15 such as banknotes. When the carrier 1 stops at a teller's location, for example, by energizing the solenoid 19, the link mechanism 18 opens the cover 16 to the dotted line position in FIG. It is configured so that the cash 15 stored therein can be taken out.

In the present invention, a bracket 6 is provided on the carrier 1 of the linear motor having the above structure. Sensors 5-1 to 5-4 are arranged near the stop position of the carrier 1 at the counter. Each sensor is composed of a light emitter 7 and a light receiver 8. Therefore, when the light is not blocked by the bracket 6 of the carrier 1, the light receiver 8 receives the light from the light emitter 7, and the light receiver 8 generates a light reception signal.

However, when the carrier 1 moves on the running rail (not shown in FIG. 2) and comes to the solid line position, the bracket 6 provided on the carrier 1 is inserted between the light emitter 7 and the photoreceptor 8. As a result, no light reception signal is generated from the photoreceptor 8. When the carrier 1 further moves to the left and comes to the dotted line position in Figure 2, the bracket 6 is removed from between the light emitter 7 and the photoreceptor 8, and the photoreceptor 8 generates a light reception signal again. .

According to the conventional control system, as explained in the first part of the specification, the speed of the conveyor 1 immediately before the stop position differs due to the difference in distance from the cash teller room to each counter, etc. It was difficult to stop it accurately at a predetermined position. The present invention uses a control method as shown in FIG. 4 to improve this problem.

FIG. 4 will be explained below.

A passing signal P of the bracket 6 detected from a photoreceptor 8 of a sensor disposed near the position where the carrier 1 is to be stopped is transmitted to the control unit 20. Since the length l of the bracket 6 is predetermined, the duration time of the passing signal P is controlled by the control unit 20.
The speed of the conveyance body 1 can be detected by reading the speed.

The calculation unit 21 has a function of calculating the strength of the brake according to the speed of the carrier 1. As shown in FIG. 2, when the bracket 6 finishes blocking the light between the light emitter 7 and the light receiver 8, the distance S between the stator 2-1 of the linear motor and the carrier 1 is equal to the distance between the light emitter 7 and the light receiver 8. arrangement position, length of carrier 1,
It is fixed by the mounting position of the bracket 6, etc. Even after traveling this distance S, the carrier 1
Considering that the speed of stator 2 remains unchanged,
The braking time during which the applied braking current is applied from when the secondary conductor 10 attached to the carrier 1 enters between -1 and 1 is the speed at which the bracket 6 passes between the light emitter 7 and the photoreceptor 8. Determined accordingly.

Now, the stator 2-
This is done by applying an alternating current to the primary conductor 9 of 1 so as to apply a reverse running current that causes the carrier 1 to run in the opposite direction to the direction in which it has been running up to that point. The number of cycles at that time is determined by the arithmetic unit 21 as follows.

As a result of experiments, it has been found that the relationship between the speed of the carrier 1 and the number of braking cycles is not a completely proportional relationship, but a functional relationship as shown in FIG. Therefore, when the speed signal is transmitted from the control section 20, the calculation section 21 performs calculation based on the functional relationship shown in FIG. 5, and calculates the number of braking cycles corresponding to the speed signal. , which is sent as a response to the control unit 20.

Therefore, when a customer requests a withdrawal, the amount requested for withdrawal is stored in the conveyor 1 from the cash counter 4, and the conveyor 1 is driven to the counter. When the carrier 1 passes the sensor 5-3 provided immediately before the scheduled stop window, a passing signal P of the bracket 6 is transmitted from the photoreceptor of the sensor 5-3.
is obtained. The passage signal P is then transmitted to the control section 20 shown in FIG.
generates a velocity signal V ₁ of the carrier 1 and transmits it to the calculation section 21 .

When the calculation unit 21 receives this speed signal V ₁ , it calculates the number of reverse excitation cycles S ₁ of the linear motor required to stop the carrier 1 at a predetermined position based on the functional relationship shown in FIG. , this is controlled by the control unit 2
0.

Separately, the control section 20 instructs the power supply control section 22 to control the linear motor braking circuit 2 so as to apply braking to the carrier 1 when the passing signal P disappears.
4 to operate. As a result, the power supply control section 22 causes the stator 2-1 of the linear motor to perform a braking operation so as to apply a torque that causes the transport body 1 to travel in the opposite direction to the direction in which it is currently traveling. 9 is reverse excited. This braking action is activated when the secondary conductor 10 provided at the bottom of the carrier 1 is inserted between the stators 2-1, so this point is detected by appropriate means, such as another photo sensor means. and generates a braking start signal B.

On the other hand, the control section 20 includes a zero-cross detection circuit section 2.
3 to the power supply control unit ₂₂ , that is, the _zero - _crossing point detection signal Z shown in FIG. ing. Therefore, the control section 20 counts this zero-crossing point detection signal Z based on the braking start signal B. When this count value becomes equal to the number of reverse excitation cycles _S1 transmitted from the calculation section 21, the control section 20 drops the braking start signal B. As a result, the power supply control section 22 stops the braking operation in the linear motor braking circuit 24. In this way, the carrier 1 can be accurately stopped at a predetermined position.

In the above description, the braking is performed by counting AC zero-crossing point detection signals, but the braking can also be performed in the following manner.

That is, as a braking means for the linear motor, the sixth
Direct current braking can be performed by applying a direct current as shown in Figure C to the primary conductor 9. In this case, since this DC braking time differs depending on the speed of the carrier, as in FIG. . It is also possible to determine the braking time in accordance with the speed of the carrier by counting the DC braking time using a clock pulse signal or the like as shown in FIG. 6D. And this sixth
The method described with reference to FIGS. 3C and 5 can very accurately stop the carrier at a predetermined position even when the braking start signal B occurs in the middle of the zero cross point shown in FIG. 6B.

Thus, as explained above, according to the present invention,
Since the carrier containing cash and the like can be accurately stopped at a predetermined position of the teller, it is possible to smoothly carry out bank teller operations.

In the above explanation, the speed of the conveyor remains unchanged even after traveling the distance S shown in FIG. 2, but the rate of change is almost fixed.
Moreover, even if this change is taken into account, the amount of braking can be determined based on experiments in the same way.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of the conveyance body control system of the present invention, FIG. 2 is an explanatory diagram showing the conveyance body and speed detection means, FIG. 3 is an explanatory diagram of the linear motor and the conveyance body, and FIG.
The figure is a circuit configuration diagram of an embodiment of the present invention, and FIGS. 5 and 6 are diagrams illustrating the operation of the present invention. In the figure, 1 is a conveyor, 2-1, 2-2 are linear
The stator of the motor, 3 is a running rail, 4 is a cash compartment, 5-1 to 5-4 are sensors, 6 is a bracket, 7 is a light emitter, 8 is a light receiver, 9 is a primary conductor of the linear motor, 10 is a secondary conductor of the linear motor, 11 is a linear motor mounting base, 12 is a carrier support frame, 13 is a bearing roller, 14
15 is a conveyance body base, 15 is cash, 16 is a conveyance body cover, 17 is a presser spring, 18 is a link mechanism, 19 is a solenoid, 20 is a control unit, 21 is a calculation unit, 22
23 is a zero-cross detection circuit, and 24 is a linear motor braking circuit.

Claims (1)

[Scope of Claims] 1. In a teller system configured such that a common rail is provided between a teller room and a plurality of tellers, and a conveyor for placing cash, slips, etc. runs on the rail, the above-mentioned conveyor a traveling means consisting of a linear motor for moving the body; and a traveling means provided at a certain distance from the traveling means,
A speed detecting means for detecting the speed of the conveying body traveling on the rail; a braking means for braking the traveling of the conveying body by reverse excitation or direct current excitation of the primary conductor of the traveling means; comprises a calculation unit that calculates the amount of braking to be applied to the braking means according to the amount of braking, and when stopping the carrier on the traveling means, the value of the current to be applied to the primary conductor according to the calculated amount of braking. Or a carrier control method characterized by controlling the application time.