KR200418669Y1 - Receive sensitivity selecting switch of a receiver for a railway circuit - Google Patents

Abstract

The present invention relates to a reception sensitivity setting switch of an orbital receiver device, which is installed on the front of the orbital receiver device, and is grouped into three switch groups capable of receiving different frequencies, and each of the switch groups includes a revolver. It is an object of the present invention to provide a reception sensitivity setting switch of an orbital receiver device that allows a non-skilled worker to easily change the reception sensitivity of a receiver device by configuring a slot and forming a rotary terminal selectively connected to the revolver slot. .

When the present invention is applied, the reception sensitivity is changed by simply rotating the rotary reception sensitivity setting switch formed on the front of the receiver, so that even the unskilled worker can easily change the reception sensitivity and set the reception sensitivity. This has the advantage that the time is greatly shortened and there is no risk of confusion since there is no direct connection between multiple cables and ports.

Description

Reception sensitivity setting switch of track receiver device {RECEIVE SENSITIVITY SELECTING SWITCH OF A RECEIVER FOR A RAILWAY CIRCUIT}

1 is a perspective view showing the external appearance of a track receiver device with a reception sensitivity setting switch according to an embodiment of the present invention,

2 is a block diagram showing a circuit configuration of a track receiver apparatus according to an embodiment of the present invention;

3 is a diagram illustrating a configuration of a reception sensitivity setting switch of an orbital receiver according to an embodiment of the present invention;

4A, 4B, and 4C are diagrams illustrating a circuit connection state of a reception sensitivity setting switch of an orbital receiver device according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

6: display panel, 8: fuse display,

10: receiver input power display unit (voltage), 12: monitoring unit check unit,

14: Receiver input power display (current), 16: relay voltage display,

18: Relay operation status display section, 26, 28: Receive entry / exit measurement port,

24a, 24b, 24c: Reception sensitivity setting switch, 25a, 25b, 25c: Rotary terminal,

27: revolver slot, 29: keyhole.

The present invention relates to a reception sensitivity setting switch of an orbital receiver device, and more particularly, is installed in front of the orbital receiver device and is grouped into three switch groups capable of receiving different frequencies, and each of the switch groups has a reverberator. (Revolver) The present invention relates to a reception sensitivity setting switch of an orbital receiver device in which an unskilled worker can easily change and set a reception sensitivity of a receiver device by forming a slot and forming a rotary terminal selectively connected to the revolver slot.

As is well known, a Swiss SIC insurance company analyzed the world's major accidents during the year (92 years) and found that on average 0.8 cases per day were sacrificed at 1,90 people. The number of accidents was 176 (35.9%) of natural disasters, with 55 road and rail accidents, 18.5%, 43 water accidents, 14.4%, 35 large fires, 11.7%, and 28 air accidents, 9.4. % Was net. More important than the number of accidents, however, is how much casualty or property damage is.

According to the data, more than 1,900 people were killed in railway accidents following natural disasters caused by typhoons, floods, and earthquakes. Two to four times more casualties were reported.

In particular, most train accidents occur in underdeveloped countries, and most of the accidents are caused by train collision or derailment due to breakdown of signal security. As described above, due to the characteristics of rail traffic that transports a large number of passengers and cargo, safety accidents caused by breakdowns of security devices can be catastrophic, devastating to national as well as individuals.

Here, the railway signal security device means each device related to the safe driving of a vehicle, that is, a signal device, an interlock device (mechanical linkage, electric relay interlock), a blockage device, an automatic train control device, and other devices. To operate automatically and systematically.

Among them, the track circuit device belonging to the electric relay interlock device is composed of track circuit transmitter device, bond, track insulation and track circuit receiver device, so that the vehicle running on the track cannot be detected and switched to another track. It plays a role in making electric circuits on a certain section of rail.

The conventional track circuit device includes a power module device, a transmitter device, a receiver device, and a relay device. In this case, the conventional track circuit receiver device uses a signal frequency transmitted from a transmitter device to position on a track of a vehicle. It is possible to grasp information, various fault signals, and track abnormalities. More specifically, the conventional track circuit receiver apparatus performs track circuit detection, track relay control, fuse detection, and various output voltage detection.

When such a conventional track circuit receiver device receives a frequency from the transmitter device, a difference in reception sensitivity occurs from time to time according to the transmitter's transmission frequency or track condition. Therefore, in order to maintain a higher reception sensitivity when a difference in reception sensitivity of the receiver device is generated, a plurality of slots are formed at the rear end of the device so that the connection position of the cable connected to the input transformer can be changed at any time according to the reception frequency.

However, in this case, after the operator checks the frequency reception status, it is inconvenient to change the cable connection position connected to the input transformer at the rear end of the device. There was a problem that it was difficult to know which reception sensitivity was changed only by inserting a cable of a plurality of cables to connect a circuit.

In general, even if the reception sensitivity is changed within the ranges of (9L, 9H, 0) and (3L, 3H, 0), (1L, 1H, 0), a plurality of lines are required to receive a single frequency (9L). Since 9 되어야 2 = 18 slots and cable terminals are required to be connected, one of the 18 slots and 2 corresponding slots must be found for the reception setting of one frequency (9L). I had to find two cables and connect each one.

However, this method is difficult to find the slots and cable terminals that can receive the corresponding frequency among a number of slots and cable terminals, it takes a considerable time to find the slots and cable terminals, respectively, Since it is necessary to attach a tag so as to receive the frequency, there is a problem that it is very inconvenient and takes a long time to change the reception sensitivity.

The present invention has been made in view of the above-described prior art, and is provided on the front of the track receiver device and is grouped into three switch groups capable of receiving different frequencies, and each of the switch groups has a revolver. It is an object of the present invention to provide a reception sensitivity setting switch of an orbital receiver device that allows a non-skilled worker to easily change the reception sensitivity of a receiver device by configuring a slot and forming a rotary terminal selectively connected to the revolver slot. .

In order to achieve the above object, according to a preferred embodiment of the present invention, in order to receive the signal of the transmitter device transmitted through the track rail, matching the impedance between the track rail and the receiver device to minimize the loss of the signal An input transformer for performing an interface; A filter for selectively blocking a low frequency and a high frequency scan of the input transformer; An amplifier for amplifying the signal passing through the filter; A demodulation unit for performing pulse code modulation to digitize a digital signal by receiving and modulating a frequency signal, which is an analog signal for orbital communication; An AND gate connected to an output side of each demodulator, for receiving a pulse signal output from the demodulator, and performing a logic operation; In the track receiver device comprising a relay drive unit for automatically controlling the power interruption to the sensing circuit of the rear stage by the pulse signal of the receiver circuit,

Connected to the primary winding of the input transformer is configured on the front of the track receiver device so that three reception sensitivity values can be selected, six slots are connected in a circle, any two of the six slots are connected There is provided a reception sensitivity setting switch of an orbital receiver device comprising a rotatable terminal rotatably connected to a center portion of a slot for selecting a reception sensitivity value.

Preferably, the reception sensitivity value selectable using the reception sensitivity setting switch may be one of (9L, 9H, 0), (3L, 3H, 0), (1L, 1H, 0) for each switch. There is provided a reception sensitivity setting switch of an orbital receiver device which can select a value.

Preferably, the rotatable terminal is provided with a reception sensitivity setting switch of the track receiver apparatus, characterized in that a key hole for inserting a key in the center thereof is formed.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a perspective view showing the outer appearance of a track receiver device with a rotary receiving sensitivity setting switch according to an embodiment of the present invention.

Referring to this, the rotary receiving sensitivity setting switch according to an embodiment of the present invention is installed on the front of the track receiver device, and is grouped into three switch groups capable of receiving different frequencies, and each switch group is connected to each other. By forming a revolver slot and forming a rotary terminal selectively connected to the revolver slot, an unskilled worker can easily change and set the reception sensitivity of the receiver device.

To this end, the track receiver device 2 is provided with a rotary receiving sensitivity setting switch according to an embodiment of the present invention, first, the track receiver device 2 is a receiver device by embedding a circuit and various boards and chips A housing 4 constituting (2) is provided, and a display panel 6 for displaying the driving states of various receiver devices 2 is provided on the front of the housing 4.

The display panel 6 is provided with reception sensitivity setting switches 24a, 24b, and 24c which can change a connection according to the reception sensitivity by easily switching the reception sensitivity by a rotary switch method, and the fuse state of the fuse is LED. A fuse display unit 8 for displaying through blinking of the lamp; Receiver input power (voltage / current) display units 10 and 14 for indicating whether the receiver input voltage and current are normally applied; Relay voltage / operation status indicators 16 and 18 for indicating relay voltage status and operating status, display unit 12 for performing a restart operation of the monitoring device, whether the sensing device is loaded, and the receiver output voltage and relay output. Measuring ports 26 and 28 for measuring voltage are configured on the front surface.

Accordingly, the track receiver device 2 in the railroad track circuit system according to an embodiment of the present invention can easily recognize the fault location and the cause of the fault, even through the various display units provided in the display panel 6. Since it is possible to easily switch the transformer input terminal according to the reception sensitivity, it is possible to maintain the best reception sensitivity, and it is possible to easily determine whether or not the normal operation of the receiver device (2).

Particularly, in the present invention, the reception sensitivity setting switch 24a, 24b, or 24c of the receiver makes it possible to easily change the reception sensitivity of the receiver device even by unskilled workers. The rotation reception sensitivity setting switch 24a, 24b, 24c) is grouped into three groups of switches capable of receiving different frequencies.

At this time, the present invention consists of three switch groups that can change the reception sensitivity in the range of (9L, 9H, 0), (3L, 3H, 0), (1L, 1H, 0), each rotation type Receiving sensitivity setting switches 24a, 24b and 24c are formed, and by rotating the rotary receiving sensitivity setting switches 24a, 24b and 24c, it is possible to receive track signals from the track circuit while maintaining various receiving sensitivity. Will be.

Therefore, in the present invention, since the reception sensitivity setting switch 24a, 24b, and 24c can be used to easily change the reception sensitivity even for unskilled workers, the setting time is easy and the setting time for changing the reception sensitivity is easy. Will be shortened.

Figure 2 is a block diagram showing the circuit configuration of the track receiver apparatus according to an embodiment of the present invention.

Referring to this, the track receiver device 2 according to an embodiment of the present invention is a reception sensitivity setting switch (24a, 24b, 24c), input transformer 30, high pass filter (32), low Low pass filter 34, amplifiers 36 and 42, filters 38 and 44, demodulators 40 and 46, end gates 48, delay unit 50, relay driving unit 52 The display panel 6 is configured.

The reception sensitivity setting switches 24a, 24b, and 24c are configured in the primary windings of the input transformer 30, respectively, and are configured to control reception sensitivity by switching within different reception sensitivity bands. The reception sensitivity setting switches 24a, 24b, and 24c will be described later in more detail using 4b and 4c.

The input transformer 30 is a means for performing a frequency interface to match the impedance between the track rail (not shown) and the receiver device 2 to minimize signal loss.

In addition, the high pass filter (32) is configured on the secondary side of the input transformer 30 as a means (HPF) for passing only the high frequency (High) and the low frequency (Low) to cut off, And a low pass filter (34) configured on the secondary side of the input transformer (30) to pass a low frequency (Low) and to block a high frequency (High). (LPF).

The amplifiers 36 and 42 are configured at the rear ends of the high pass filter 32 and the low pass filter 34, respectively, and the high pass filter 32 is provided. And a low pass filter (34) means for amplifying the signal.

The filters 38 and 44 are connected to the output terminals of the amplifiers 36 and 42 to filter noise signals included in the signals passing through the amplifiers 36 and 42, and are means for signal matching. (40, 46) (Demodulator) is a means for performing pulse code modulation for digitizing a digital signal by receiving and modulating a frequency signal, which is an analog signal for orbital communication.

The AND gate 48 is connected to an output side of each of the demodulators 40 and 46, and is a means for performing logic operation by receiving a pulse signal output from the demodulators 40 and 46. Reference numeral 50 is a means for being connected to the output side of the end gate 48 to perform a signal delay of 2 seconds or more, and the relay driving part 52 is connected to an output terminal of the delay part 50, It is a means for automatically controlling the power supply interruption to a later sensing circuit (not shown) by receiving a high signal and a high signal by a pulse signal of a receiver circuit.

The display panel 6 is a panel which is connected to a circuit of the receiver device and displays a driving state of the receiver device. The display panel 6 can easily change the reception sensitivity according to the reception sensitivity by easily switching the reception sensitivity using a rotary switch method. The setting units 24a, 24b, and 24c are connected to the primary side of the input transformer 30, respectively, and may set different reception sensitivity as they are switched.

In addition, a fuse display portion 8 is formed in the display panel 6 to display the fusion state of the fuse through the blinking of the LED, and the fuse display portion 8 is a fuse (not shown) connected to the power input end of the circuit. The LED is connected to the ground side of the c) so that the fuse is turned off, and the receiver input power (voltage / current) display parts 10 and 14 for indicating whether the receiver input voltage and current are normally applied are configured. It is composed of LEDs connected to the power input terminal of the circuit through a resistor, and the output side of the LED is grounded so that it is turned on when a constant voltage and current are applied.

In addition, the relay voltage / operation state display units 16 and 18 for displaying the relay voltage state and the operation state have an LED connected to the output side of the relay driver 52 via a resistor, and the output side of the LED is grounded so that the relay is grounded. It is turned on during normal driving of the lamp, and is turned on when the normal voltage flows into the relay.

In addition, the display unit 12 for performing a restart operation of the monitoring device and whether or not the sensing device is loaded is configured, and the LED is connected to the load side of the monitoring device (not shown) connected to the relay driver 52. And grounded in parallel with the monitoring device, the lighting device is turned on during normal driving of the monitoring device, and measuring ports 26 and 28 for measuring the receiver output voltage and the relay output voltage are configured.

Figure 3 is a view showing the configuration of the rotary receiving sensitivity setting switch of the track receiver apparatus according to an embodiment of the present invention, Figures 4a, 4b, 4c is a rotary type of the track receiver device according to an embodiment of the present invention A diagram showing the line connection state of the reception sensitivity setting switch.

Referring to this, the reception sensitivity setting switch (24a, 24b, 24c) constituting the present invention is connected to the primary winding of the input transformer 30, the operation of the reception sensitivity setting switch (24a, 24b, 24c) Accordingly, the reception sensitivity value can be adjusted in various ways.

More specifically, the reception sensitivity setting switches 24a, 24b, and 24c are connected to the input transformer 30 to receive reception sensitivity (9L, 9H, 0) and (3L, It is connected to three switch groups that can be changed in the range of 3H, 0), (1L, 1H, 0), and is formed as a revolver slot of slots 1 to 18 according to each switch group. It is configured to be rotatable at the center of the revolver slot, and according to each switch group, slots 1 to 6, slots 7 to 12, slots 13 to 18, etc. Rotating terminals 25a, 25b, and 25c which are electrically connected are constituted, and a key hole 29 is formed on the front surface of the rotatable terminals 25a, 25b and 25c.

Therefore, a key is inserted into the keyhole 29 of the rotary terminal 25c of the third switch 24c having the reception sensitivity of (9L, 9H, 0) among the reception sensitivity setting switches 24a, 24b, and 24c. When the rotary terminal 25c is rotated, as shown in FIG. 4A, the rotary terminal 25c connects slots 1 and 6, respectively, to select a sensitivity of 9H. It is possible to select 9L reception sensitivity by rotating the typical terminal 25c and connecting slots 3 and 4, and to select the reception sensitivity of 0 by connecting slots 2 and 5, so even unskilled workers It is easy to change the reception sensitivity.

If the rotary terminal 25c of the third switch 24c connects slots 3 and 4 to select 9L reception sensitivity, the first and second switches 24a and 24b are 7, 12 and 14, respectively. , The rotary terminals 25a and 25b are rotated to select slot 17 so that the reception sensitivity is maintained at 0.

On the other hand, the reception sensitivity setting switch of the track receiver apparatus according to the embodiment of the present invention is not limited only to the above-described embodiment is possible various modifications within the scope not departing from the technical gist.

As described above, the reception sensitivity setting switch of the track receiver device according to the present invention is simply set by changing the reception sensitivity by simply rotating the rotary reception sensitivity setting switch formed on the front of the receiver, even if unskilled workers easily change the reception sensitivity There is an advantage in that it can be set, and the time for changing and setting the reception sensitivity is greatly shortened, and there is no fear of confusion since there is no direct connection between multiple cables and ports.

Claims (3)

An input transformer for performing a frequency interface to match a impedance between the track rail and a receiver device to minimize a signal loss to receive a signal of a transmitter device transmitted through a track rail; A filter for selectively blocking a low frequency and a high frequency scan of the input transformer; An amplifier for amplifying the signal passing through the filter; A demodulation unit for performing pulse code modulation to digitize a digital signal by receiving and modulating a frequency signal, which is an analog signal for orbital communication; An AND gate connected to an output side of each demodulator, for receiving a pulse signal output from the demodulator, and performing a logic operation; In the track receiver device comprising a relay drive unit for automatically controlling the power interruption to the sensing circuit of the rear stage by the pulse signal of the receiver circuit, Connected to the primary winding of the input transformer is configured on the front of the track receiver device so that three reception sensitivity values can be selected, six slots are connected in a circle, any two of the six slots are connected Receiving sensitivity setting switch of the track receiver device, characterized in that consisting of a rotatable terminal rotatably connected to the center portion of the slot for selecting the reception sensitivity value. The reception sensitivity value selectable using the reception sensitivity setting switch is any one of (9L, 9H, 0), (3L, 3H, 0), (1L, 1H, 0) for each switch. The sensitivity setting switch of the track receiver apparatus, characterized in that the selectable sensitivity value. The reception sensitivity setting switch of claim 1, wherein the rotatable terminal includes a key hole formed at a center thereof to insert a key.

Images