JPS60135080A - Dual-wire collecting type moving article detection apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device 6 for detecting a two-wire current collector type moving object such as a model railway vehicle.

In electric railway models and car racing models,
It is generally supplied to model J3JL vehicles from two rails:
It has become widespread to not only move the vehicle, but also to adjust the speed and position of the vehicle to move each accessory of the Shinsou machine. 11-mo box rolls have also started to be performed.

In the case of Ql ir + model in 41, it is possible to increase interest by operating the Shin-) machine and treadmill, or by running the number sequence + lj in the same 11r, and such various 7 accessories. For control and automatic forward rotation, it is necessary to detect the position of the vehicle (6).Therefore, conventionally 41:
Detection power 1], which is detected by the power supply rail, is a detection switch located at or near the power supply rail;
This is to detect both Φ by the switch output when both pass. However, in order to reduce the number of parts, rails and vehicles must be added to the force V that uses such a detection switch.
If there is a time-consuming process to do this, it may be impossible to do more than a few lines at a time, and there is also the problem that devices such as detection circuits become expensive.

Therefore, instead of using a sensor such as a detection switch, it has been proposed to detect both Φ by a current flowing through the S self-weight rail. This is because there is at least one electrical resistance of the motor or light bulb in the running Φ or medium i, 14 R'l, so it is better to insulate the power supply rail to phase 1). minutes;l;tl L,
When the medium 1 and 14 which have 11 electric resistance between each metal are installed, the 1tL current flowing from one force of the power supply rail in that section to the other force through the electric resistance will cause the presence of the medium thickness. It is intended to be detected. According to this method, there is no need to put any weight on the rails or remove any parts, so the problems associated with the use of detection swifts as described above are solved. However, when the speed is 11j 1.lj or slower, the current flowing through the rail is small, so it is difficult to detect and is easily influenced by noise.

SUMMARY OF THE INVENTION An object of the present invention is to provide a detection device that eliminates the drawbacks of the current detection method and can accurately detect two-line TEPCO moving objects at any speed.

The present invention is based on the following points: ・In order to reliably detect a vehicle even when both speeds are low, it is only necessary to reduce the current, but in view of the fact that if a large current is continuously supplied, the speed cannot be controlled. , which employs a pulse control force type that controls the speed by appropriately changing the duty ratio of the pulse signal. Incidentally, the duty ratio is the ratio between 11j and 11j, which takes the two high and low pulses i+fi.

JJ and body side of the present invention will be explained with reference to accompanying drawings.

'is 1 Figure shows the detection device of the present invention, 1. An example of a model railway track for detecting the position of a model vehicle using yl is schematically illustrated. The two power supply rails la and lb that make up the small I'll type track are connected to each other by the gearing 2! The rails of each section are divided into a plurality of electrically insulated sections A, B, C, etc., and the rail of each section is connected to the other section 1b through a direction reversal device 15, which will be described later. are connected to the output terminals of the DC power supply 3 for model railways via the direction reverser 15 and the detection device 10 of the present invention, respectively.

In the illustrated example, the detection device 10 is based on a microcomputer (-I dynamic operation system 1 is incorporated therein, and as shown in FIG.
UII, a pulse generator 12 controlled by its output signal, a power supply circuit 13 that performs switching operation 'V1 according to the pulse width outputted from the UII, and a power supply circuit 13 that is supplied with power from the power supply 3 when this power supply circuit is ON. It consists of a current detector 14 that detects the current in the section. CP of this detection device
Components 12, 13 and 14 other than the UII are provided between A, B, C, ---4++, respectively, in FIG. Further, a direction reversing device 5 is provided between the output terminals of the DC power supply 3 and the power supply circuit 13 and the two rails to change the direction of the vehicle's movement by changing the polarity of the rails.

The CPU II is programmed to automatically set the speed of the model Φ 4 running on the orbit shown in FIG. 1, and to generate data corresponding to the speed.

The pulse signal generator 12 has a register 21 that temporarily records the speed data sent from the CPU II (t(Σ),
A counter 22 that is counted and amplified by a constant cycle pulse t,1 sent from the PUII, and these registers 2
1 and the counter 22 (iri), and an RS flip-flop 24 that is set by the cello output of the counter 22 and reset by the output of the match circuit 23.

The lees'lIL circuit 13 includes 1. r of the pulse signal generator 12 (S flimp flow, Q output of the bu 24 (FIG. 3(f))
It is composed of a light emitting diode, a phototransistor, and a 1F river transistor 33, which are connected through a resistor 31 so that when the capacitor is 0'', it is ON, and when it is 1, it is OFF. In response to this, ONloFF is performed as shown in FIG. 31(g).

The current detector 14 consists of a resistor 41 connected between the (+) terminal of the Ichihara 3 and the transistor 33 of the power supply circuit 13, and a transistor 42 that is turned on by a voltage generated when a current flows through the resistor. , is connected to this transistor via a resistor 43, and its O
Photocoupler 4 that turns ONloFF in response to NloFF
4, connect to Fo I Cabra 44's I Ranjisk, and when this is OFF, the collector'il! ．． voltage to high potential (V c
When the transistor of the photocoupler 44 and the resistor 45 are turned on, the collector voltage becomes a low potential (0), and the pulse signal t! A detection flip-flop 46 reset by the carrier output from the counter 22 of the f generator 12 (FIG. 3(i)) and the pulse signal sub-generator 1
The output of the detection flip-flop 46 (FIG. 3(J)) is
). Based on the output of this D-type lip flop 46 (FIG. 3(k)), the CPU11 determines whether there is a model vehicle in each section A, B, C---.

The direction reversal device 15 includes a two-circuit, two-contact type relay 51 and a reversing switch 52 connected to a constant power source VCC to excite the solenoid section.

Next, the operation of the detection device 10 configured as described above will be explained.

First, the presence or absence of a model vehicle in a section of the model track (for example, section A in Fig. 1), that is, whether there are any 111 vehicles in that section, changes as shown in Fig. 3 (a). shall be. However, in this figure, for convenience of explanation, Φ11+4
The time for "r nothing" is actually 1υ (slightly longer than the time for the counter 22 to count from 0 force to 7 as described later).

According to the present invention, as already mentioned, the speed of the model vehicle is
It is controlled by changing the duty ratio of the pulsed current or electricity supplied to the rail. In the illustrated example, the speed data is set to any value from O (stopped state) to 6 (maximum speed), and when the vehicle is being driven, the speed data shown in FIG.
It changes as illustrated in b). Therefore, the pulse signal generator I2 repeatedly counts up from 0 to 7 in the counter 22 as shown in FIG. 3(C), while
The speed data set by CPU II is stored in register 2.
1, and when the value of the counter 22 matches the value of the register 21 as shown in FIG. 3(e), the match circuit 2
Outputs the belief from 3.

The RS flip-flop 24 is set by the zero output from the counter 22 (FIG. 3(d)), and is reset by the coincidence signal from the coincidence circuit 23 (FIG. 3(d)).
Figure (f)). Therefore, this flip-flop 24 is connected to the register 21 from the time when the counter 22 reaches zero.
A signal (“0” level) with a time width until reaching the value set in is output.

The Q output from the RS frimbflop 24 activates the photocoupler 32 of the power supply circuit 13 for a time corresponding to if of the register 21, and turns on the power supply transistor 33. As a result, from the DC power supply 3 to the upstream detector 1.
4. A force of ``-'' is applied to the section of rails la and lb via the power supply circuit 13 and the direction reversal device 15. This voltage is constant regardless of the speed of [1i].

At this time, if a model vehicle exists within that section (period indicated by "IJ" in Fig. 3(a)), a current flows (
Figure 3 (h)). This current has a large peak (++'i
) is determined by the resistance value of the middle 7 cars, but since the voltage supplied through the power supply circuit 13 is constant and there is no difference depending on the speed of the 11f cars as in the past, should be constant. 'In the upstream detector 14,
The value of the resistor 41 is set redundantly so that the transistor 42 is turned on when current flows through the resistor 41. Therefore, the photocoupler 44 moves 1'1, and the detection flip-flop 46 is turned on.

By the way, when a vehicle runs on a model railway track, the rails and the small market collection wheels are not always in contact with each other, and poor contact often occurs.

In that case, even though the power supply circuit 13 is ON, no current flows, and the current is interrupted as shown in FIG. 3(h'). Therefore, if the current flows even momentarily when the power supply circuit is 13 or 011, the vehicle is detected.
The RS flip-flop 46 is used to detect the rise of the 'iE current as shown in FIG. 3(j), and thereafter this is maintained regardless of current fluctuations. The set detection flip-flop block 46 is reset by the carrier output from the counter 21 (FIG. 3 (1)) in addition to the detection at the next energization time (when the power supply circuit 13 is CIN).

1: The output of the R, S flip-flop 46 is sent to the D flip-flop 47;
OF is when the coincidence output of the pulse generator 12 mentioned above is 11''/1-, that is, the power supply circuit 13 is ON.
When F is reached, the output of the detection flip-flop 46 is accepted and a final detection signal (FIG. 3(k)) is output, whereby the CPU II recognizes the presence of the vehicle.

On the other hand, when there is no vehicle within the section of the power supply rail (period indicated by "none" in Fig. 3(a)), the power supply circuit 13 is turned on according to the set speed data. No current flows. Therefore, the detection flip-flop 46
is not sent, and its output is 0" at the 1 blue point where the match signal is output from the matching circuit 23, so the output of the D flip-flop 47 also becomes 0 at this time, and from then on, the detection free signal is This state is maintained unless the pump 46 is set.

The CPU II detects the presence or absence of the middle 6 cars in the section by determining the output of the D-fringe float 47, and as a result, detects the position of the section where the vehicle remains, that is, the model track. I can do something. And, when operating multiple trains at the same time, each row is 11! The speed in each row can be precisely controlled by detecting the position of the row.

Although the illustrated body side has been described below, the present invention is not limited thereto. For example, according to the community,
When the vehicle is stopped in a certain section, the speed data is O'', the supply iL circuit is not turned on, and of course no current flows, or the speed data is O''. When the data is 0, the coincidence output is slightly delayed from the upper output, and the flip-flop of the pulse generator is set.

1. Then turn on the power supply circuit momentarily and turn on the power.
, detects the current flowing to the li current detector, and stops 1.
1 lily can be detected.

In addition, on the -1-2 joint side, a current detector and power supply circuit configuration 41 and a direction reversal device as shown in the figure are provided between the supply circuit and the rail. is not limited to the illustrated example, and can be modified in various ways depending on the enclosure configuration of the detection device of the present invention.

Furthermore, registers, counters, matching circuits, flip-flops, etc. on the -1-2 common side are located within the CPU or connected to it.
n Fjt can be configured in memory, and a comparator can also be used as a current detector. In addition, in the power supply circuit and the current detector connected to the rail, a )t coupler is used to completely prevent noise from entering the control unit and prevent malfunctions. It is not limited to the first coupler.

In addition, the present invention can be used not only for automatic operation but also for manual operation, that is, at a speed set by a normal human driving operation.
A similar effect can be achieved when both vehicles are running. In addition, the present invention is applicable not only to railway models, but also to railway models and other 2 models.
It can be applied to the detection of moving objects using line current collection.

Below 1. As shown in the figure, the present invention adopts the pulse 11 control force formula that controls the speed Ft7 by appropriately changing the duty ratio of the pulse belief when power is supplied to the rail, so no matter what the speed within "1" is, The current value does not decrease,
Therefore, by detecting the current flowing through the power supply rail without being affected by noise, the power supply rail 1. It is possible to reliably detect the presence or position of a moving object using a two-line collection system.

[Brief explanation of drawings]

Figure 1 shows a model railway track using the detection device of the present invention.
・A diagram schematically showing an example; FIG. 2 is a diagram showing a specific example of detection system; 6; FIG. 3 is a diagram showing a specific example of the device shown in FIG. FIG. 3 is a diagram showing changes in output of each part. la, 1b---1 ship electric rail, 2-11-camp,
3-111 power supply, 4-111 model vehicle, 10----
Detection device, 1l---CPU, 12---Pulse signal generator, 13---1 ship electrical circuit, 14------
゛fL flow height detector 15---One-way reverser.

Claims (1)

[Claims] 1. Den:! Two power supply rails connected to the 1 and 2 wires 1 and 1, when a moving object is located, the total resistance of the moving object is 1' a control unit that generates data corresponding to the speed of the moving object set automatically or automatically;
FXl! a pulse signal generator that emits a pulse (11) with a duty ratio corresponding to the speed data from 1;
A supply IE circuit that is interposed between the 11L source and the 1 rail in the section 1 and performs the -C, f, and chinking operations according to the pulse width output from the pulse (I!J generator). and,
411. A two-wire current collector type moving object detection device comprising: a current detector that detects a current between 1x supplied through the supply circuit when the supply circuit is ON. . 2. -1-, the controller is programmed to automatically set the speed of the moving object between each of the two steps in -1- in accordance with the output of the flow detector in 1-. A two-ray bundle type moving object detection device according to claim 1, which is constituted by a computer. A register that stores speed data, a counter that is updated by a signal sent from the control FAR once, a matching circuit that outputs when the values of these registers and the counter match, and the counter. The two-wire current collector type % type %4 according to the revised claim 2, s, r+, is composed of a flip-flop which is reset by the zero output of the matching circuit and reset by the output of the coincidence circuit. ,■. 11 when the power supply circuit is ON
! , the corresponding power supply 1i,! Through the circuit (7), the current flows to the supply rail between 1 and 1; i
When I amp it up, I can hear it!・When the matching circuit outputs the RS flimp cup and -1, the corresponding R
4. The two-wire current collecting type moving object detection device according to claim 3, further comprising a D flip-flop which outputs a detector tJ- which is equal to the output of the S flip-flop.