KR100327676B1 - Safety system of a railroad crossing gate - Google Patents

Abstract

The present invention relates to a railroad crossing security device for ensuring the safety of railroad crossings, in particular, the direction, speed, length and time of arrival of the railroad crossing crossing, passing time and alarm of the railroad crossing through two or more wheel detection devices Calculate the starting point, activate the crossing alarm system and the crossing block breaker, inform the passengers of the arrival time and the estimated time of crossing of the railroad crossing, and signal the signal of the road blocking state of the blocking rod, the presence of obstacles in the footboard, and the occurrence of an emergency situation. A crosswalk control means (100) for transmitting to an engineer of a train entering and storing an image of the train crossing the train; While indicating the road blocking state of the blocking rod transmitted from the crossing control means and whether there is an obstacle in the footboard, a signal indicating a malfunction of the crossing blocker is received, or a signal indicating that an obstacle exists in the footboard is received, or an emergency When a signal indicating the occurrence of a situation is received, after generating an alarm signal for each situation, wait for the response of the engineer and automatically control the operation of the train when there is no response of the engineer so that a predetermined time elapses. It is a railroad crossing security device, characterized in that it comprises a train control means 200 to reduce the speed of the train, or stop the operation of the train.

The present invention, by calculating the direction, speed, length, crossing time of arrival, crossing time required, the alarm start time of the train entering the crossing through the train detecting means, while controlling the crossing blocker and crossing alarm device, When the road blocking state of the blocking rod is bad, an obstacle is present in the footboard, or a signal indicating an emergency is input, the driver is notified of this, and the operation of the train can be automatically stopped if necessary, thereby preventing the crossing crossing. It is effective. In addition, by controlling the road blocking operation of the crossing blocker at a variable speed, it is possible to perform the road blocking operation quickly, and by storing the image of the passing of the crossing of the train, it is easy to analyze the cause and identify the responsibility when an accident occurs.

Description

Railroad crossing security device {SAFETY SYSTEM OF A RAILROAD CROSSING GATE}

The present invention relates to a railroad crossing security device for securing the safety of railroad crossings, in particular, first, by detecting the speed and vehicle length of the train to calculate the crossing time and passing time of the railroad crossing, By operating the crossing blocker for a certain time, and secondly, when the crossing blocker is operated, by controlling the falling motion (falling speed) of the crossing block breaker blocking rod to perform a rapid blocking operation, third, the blocking rod block the crossing When the operation is started, the operation state (crossing-blocking state) is indicated, and when the road blocker of the breaker is completed, the presence of obstacles in the board is present. Alerts the passengers, controls the operation of the train if necessary, In addition, fourth, to save the passage of the crossing of the train as an image to enable the analysis of the cause in the event of an accident, in particular, the Republic of Korea Utility Model Registration No. 107325, which is the design of his pre-registration, and the Republic of Korea Patent Application The present invention relates to an improved invention that is improved from No. 98-27504 and No. 98-28086.

As you know, the crossing security device is a safety device installed at the intersection of railroad and road (crossing). All vehicles and pedestrians are told beforehand that the train is approaching a certain time before the crossing. It is to prevent the crossing crossing by stopping.

1 shows a configuration of a conventional railroad crossing security device, and as shown in the figure, a train detection device 1 for detecting a train approaching a railroad crossing; Crossing alarm system (2) for warning the road pedestrians of the approach of the train by the alarm sound and alarm; A railroad crossing breaker (3) for temporarily blocking road traffic until the train approaches and passes the railroad crossing; It consists of an obstacle detection device (4) for detecting when there is an obstacle such as a broken car on the crosswalk board.

Such a conventional railroad crossing security device detects the presence or absence of a train entering the railroad crossing through the train detecting device 1, and controls the operation of the railroad crossing alarm device 2 and the railroad crossing breaker 3 to pass through the train. It is to prevent crosswalk accidents by blocking the entry of crosswalks. The obstacle detecting device 4 detects an obstacle in the crosswalk board and detects the obstacle and informs the driver of the train in operation.

Hereinafter, the configuration, operation, effects and problems of each conventional railroad crossing security device will be described in detail.

(1) Train detection device

The train detecting device detects a train approaching a crossing, and generally detects the entry of a train using a track circuit or a crossing controller.

The continuous control method using the track circuit is composed of a single track circuit between the alarm start point and the alarm end point to detect the presence of a train.The circuit configuration is simple, maintenance is easy, and continuous control can be performed. This method is high and can be effectively used for control by an incoming vehicle or the like.

Point control method using the crossing controller is a way to detect the train by using the rail as part of the feedback circuit of the high frequency oscillation circuit and detecting the train according to the presence or absence of the train, and has a control distance of 10m to 20m without track insulation. It is a method that can be used in a place where it is difficult to use a track circuit such as a section where two crossings overlap each other and a train section.

However, in the conventional train detecting apparatus as described above, first, when the train detecting apparatus is constituted using the track circuit, the train detecting method uses the short circuit state of the wheels and rails. In the case of light vehicles, short circuit current does not flow due to vibration of train weight, rail corrosion, dust of synthetic wheel, etc., so that short circuit current does not flow. When one detector detects one train several times, there is a problem that it may transition to a failure such as continuous alarm or no alarm depending on the condition. Second, when the train detector is configured as a crossing controller, Because the frequency of the ruler is only 2 channels (CHANNEL), where there are crowded crossings, it may interfere with other controllers or cause noise. There is a problem in that there is a problem that there is an unstable operation, and third, there is a problem that the contact operation is incomplete as the number of relay operation increases, chattering (CHATTING) occurs so that the crossing breaker does not work properly (that is, on (ON), there is a problem that the OFF operation is uncertain), and fourth, there is a problem that can not accurately determine the position of the train.

(2) Crossing alarm, crossing table breaker

The railroad crossing alarm system and the railroad crossing breaker operate by a signal generated when the train detecting device 1 detects a train entering the railroad crossing, and operates an alarm light and a warning light to ventilate the circumference of a pedestrian and lower the blocking rod at the same time. It serves to block.

However, the conventional railroad crossing alarm system and the railroad crossing breaker as described above are designed to operate uniformly for a predetermined time regardless of the speed or length of the train (usually set to operate for 30 seconds based on a high-speed train). Is short or slow, it operates for a longer time than necessary to block the road, causing traffic jams and causing unbelievers to signal traffic to pedestrians (pedestrians, vehicles, etc.). There was a problem that would cause an accident.

This will be described in detail as follows.

The number of accidents at crossings is the most at 91%, followed by two-wheelers and pedestrians. The cause of the accident is to cross the train immediately before passing the train, as shown in [Table 1] below. Accidents account for 70-82% of all accidents. Others include inadvertent driving and vehicle breakdowns.

Accidents caused by crossings just before a train passes are most often due to signal reliability deterioration.

In other words, the conventional crossing alarm system is a fixed distance system that installs an alarm starting point at a distance at which an alarm can be generated in consideration of the maximum speed of a train operating in a section having a crossing, so that the train passes at or below the maximum speed, Or when low-speed trains pass, the road cut-off time is longer than necessary, causing the pedestrian to feel bored and resisted or misidentified as a failure of the alarm.

Therefore, there is a problem that the alarm signal is sounded and the crossing bar is destroyed even though the crossing circuit breaker is in operation, thereby destroying the blocking rod and causing an accident. In fact, as a result of investigating the alarm time for 100 of the 1918 crossings managed by the Korean Railroad, the longest alarm time was 110 seconds, the minimum alarm time was 28 seconds, and the deviation of the alarm time was 82 seconds. Has a deviation.

In recent years, this phenomenon has been further aggravated by improvements in track and signal equipment, and improvement in vehicle performance.

Therefore, the Korean Utility Model Registration No. 107325, 'Automatic Blocking Device for Railroad Crossings', designed to detect the speed and length of trains entering the railroad crossings, operates the railroad crossing alarm system and the railroad crossing breaker so that timely control is achieved. However, in the pre-registration scheme, there was a problem in that it is not possible to provide a passer-by information (such as crossing time required) for the train to reach.

That is, it is possible to operate the crossing alarm system and the crossing blocker according to the speed and the length of the train on time, but there is a problem in that it cannot provide information about the crossing of the train such as the crossing time of the crossing.

On the other hand, one of the other reasons for accidents caused by crossings just before the train passes is because the blocking rods do not block the road despite the signal to operate the crossing breaker.

That is, even if the blocking rod is broken, or the crossing blocker itself is broken and a signal (train detection signal) for lowering the blocking rod from the train detecting device 1 is generated, the crossing is not permitted because the road cannot be blocked.

Therefore, Korean Patent Application No. 98-27504, 'Operation Display / Alarm Device and Method of Train Crossing Circuit Breaker', and Korean Patent Application No. 98-28086, 'Automatic Control Device and Method for Installation of Railroad Crossing Section of Train' In the present invention, the device detects whether the blocking rod has substantially blocked the road, or detects the road blocking state of the blocking rod through the device detecting the road blocking state and transmits it to the engineer, and then sends a signal to the train detecting device to lower the blocking rod ( If the road blocking operation of the blocking rod is not completed so that a predetermined time elapses after the occurrence of the train detection signal), an alarm signal is generated or the road blocking failure of the blocking rod is prevented by automatically controlling the operation of the train. Or an accident caused by a breaker in the crossing block).

However, the above-described invention of the first application of the present invention can prevent an accident due to the failure of blocking the road of the blocking rod, but cannot prevent an accident caused by an obstacle present in the pad, and the problem that the application cannot be covered when an accident occurs. There was a back.

In addition, in the conventional crossing blocker, the speed of lowering the blocking rod is constant, there is a problem that can not perform a fast road blocking operation.

That is, when the blocking rod is lowered, the road is quickly blocked by rapidly lowering the movement within the range where the safety accident does not occur due to the lowering operation of the blocking rod (for example, the range from the initial height to the height of the pedestrian or the height of the vehicle). Although it can be effective, there was a problem that can not be realized.

(3) Obstacle Detection Device

The obstacle detecting device 4 is a device for detecting whether an obstacle exists in the crosswalk board and notifying the driver of the train in operation.

At this time, whether or not an obstacle exists in the board is inspected by installing a plurality of laser (LASER) in the longitudinal direction or diagonal direction around the board.

However, the conventional obstacle detection apparatus as described above, first, there is a problem that the installation cost is increased by installing a plurality of expensive lasers, and second, the angle of the light emitting portion and the light receiving portion is shifted due to the vibration caused by the passing of the train. Third, there is a problem that frequent checks are required. Third, there is a problem that an obstacle existing in a space outside the laser light passes cannot be detected. Fourth, if an engineer recognizes an alarm signal and does not take appropriate countermeasures, There was a problem that can not control the operation of.

An object of the present invention is to solve the conventional problems as described above, in particular, first, by detecting the speed, direction and vehicle length of the train through a wheel detection device for detecting the presence of the train by detecting the wheel of the train After calculating the crossing time, passing time, and alarm start point of the train, the crossing alarm and the crossing breaker are used to operate the crossing crossing and the crossing crossing breaker. Display the information to the passer, and second, if the crossing blocker is operated to control the falling action (falling speed) of the blocking rod variably to make a rapid blocking operation, and third, the blocking rod starts the crossing crossing operation It constantly detects its operating state (crossing-blocking state) and makes it known to the engineer as well as heat if necessary. Fourth, after the blocking operation of the crossing blocker is completed, the vehicle is detected and notified to the engineer by the presence of an obstacle in the footboard, as well as controlling the operation of the train when necessary. In the event of a dangerous situation such as a vehicle breakdown at the crossing, the driver is not only aware of it, but also the operation of the train if necessary, and sixth, it is possible to analyze the cause of the accident in the event of an accident by saving the crossing situation as an image. Seventh, it is to provide a 'railway crossing security device' that automatically sends a signal indicating this to trains operating in the surroundings (eg, 2 km) when the train is stopped.

1 is a block diagram schematically showing the configuration of a conventional railroad crossing security device,

2 is a block diagram showing the configuration of the 'railroad crossing security device' of the present invention;

3 is a view showing the installation state of the 'railroad crossing security device' of the present invention,

4 is a view showing an example of the variable speed control of the railroad crossing breaker according to the present invention 'railroad crossing security device',

5 is a circuit diagram showing an example of a configuration of a wheel detecting device according to the present invention 'railroad crossing security device',

Figure 6 is a view showing an example of the installation state of the wheel detection device antenna unit according to the 'railroad crossing security device' of the present invention,

7 is a view showing an example of the blocking rod position detection means according to the present invention 'railroad crossing security device',

8 is a view showing another example of the blocking rod position detecting means according to the present invention 'railroad crossing security device',

9 is a view showing an example of the installation state of the camera and the infrared light of the obstacle detection / recording means according to the 'railroad crossing security device of the present invention,

10 is a view showing an example of the installation state of the train information display means according to the 'railroad crossing security device' of the present invention,

11 is a view showing a configuration example of the blocking rod state display stage, obstacle state display means, alarm means according to the 'railroad crossing security device' of the present invention;

12 is a control flow chart showing an operating state of the railroad crossing control means of the 'railroad crossing security device' of the present invention;

13 is a control flow chart showing the train speed, direction, length, crossing crossing arrival time, passing time, alarm start point calculation process of the crossing control means of the 'railroad crossing security device' of the present invention;

14 is a control flowchart showing the operating state of the train control means of the 'railroad crossing security device' of the present invention.

<Description of Symbols for Major Parts of Drawings>

100: crossing control means

110: train detection means 111: first wheel detection device

111a: antenna portion 111b: wheel detection portion

111c: hold part 11ld: regulator part

112: second wheel detection device 120: blocking rod position detection means

121: support 122: switching means

123: glass tube 124: switch contact

125: mercury 130: obstacle detection / recording means

131: camera unit 131a: infrared camera

131b: infrared light 132: data storage means

140: transmission means 141: transmission code setting unit

142: encoding unit 143: transmitting unit

150: microcomputer 160: emergency switch

170: crosswalk alarm device 180: crosswalk breaker

190: train information display means 191: character display device

192: voice guidance device 200: train control means

210: receiving means 211: receiving unit

212: decoding unit 213: receiving code setting unit

220: alarm confirmation switch 230: speed detection means

240: microcomputer 250: blocking bar status display means

260: obstacle status display means 270: alarm means

271: beacon 272: buzzer

280: speed control means 290: data storage means

In order to achieve the above object, the present invention 'railroad crossing security device', the direction, speed, length and crossing time of the train entering the railroad crossing through two or more wheel detection device, the crossing time passing time and the alarm start time To operate the crossing alarm system and the crossing block breaker, to inform the passers of the crossing time and the estimated time of passing the crossing of the train, and to signal the road blocking state of the blocking rod, the presence of obstacles in the footboard, and the occurrence of an emergency situation. A railroad crossing control means for transmitting to an engineer of a train and storing an image of the train passing through the railroad crossing;

While indicating the road blocking state of the blocking rod transmitted from the crosswalk control means and the presence of an obstacle in the footboard, a signal indicating a malfunction of the crosswalk breaker is received, or a signal indicating that an obstacle exists in the crosswalk is received, or an emergency When a signal indicating the occurrence of a situation is received, after generating an alarm signal for each of the above situations, the driver waits for the response of the engineer and automatically controls the operation of the train when there is no response of the engineer so that a predetermined time elapses. The technical configuration is characterized by including a train control means for reducing the speed of the train or stopping the operation of the train.

In addition, the railroad crossing control means, train detection means consisting of two or more wheel detection device for determining the presence of the train by detecting the wheel of the train; Blocking rod position detecting means which is operated by a predetermined control signal to detect a road blocking state of the blocking rod; It consists of a camera unit and data storage means and is installed on one side of the crosswalk, and operated by a predetermined control signal to determine whether an obstruction is present in the crosswalk board from the image where no obstacle exists and the image after the crosswalk breaker is operated. Obstacle detection / recording means for judging and recording an image of the crossing situation until the train passes the crossing in the data storage means; Transmitting means for transmitting an input predetermined signal; An emergency switch installed at one side of a crosswalk board and operated by a passenger to output a signal indicating an emergency situation; A crosswalk alarm system that operates according to a predetermined control signal; A crossing blocker operating by a predetermined control signal; Train information display means for indicating information about passing the railroad crossing; The train detecting means, the blocking rod position detecting means, the signal output terminal of the emergency switch, the signal input / output terminal of the obstacle detecting / recording means, the transmitting means, the crosswalk warning device, the crossing table breaker, and the signal of the train information display means. Connected between input terminals, the wheel detecting signal input from the train detecting means is analyzed to calculate the direction, speed, length, crossing time, crossing time and crossing time of the crossing, and the alarm starting point. It controls the breaker on time, and shows the arrival time and the passing time of the train through the train information display means, and transmits the signal for the position of the blocking rod, the presence or absence of obstacles, and the signal for emergency occurrence through the transmission means. It is characterized by the technical configuration that is configured to include a microcomputer.

The blocking rod position detecting means is characterized in that it is composed of a switching means that is turned on or off when the blocking rod of the crossing blocker is completely lowered.

For example, as shown in Figure 7, after the support rod 121 is installed on the ground so that the blocking rod (3a) is seated when the blocking rod (3a) is fully lowered, first, on the top of the structure 121 It is configured by attaching a contact switch operated according to the mounting of the blocking rod (3a), or second, by configuring each terminal of the magnetic switch to the support 121 and the blocking rod (3a), or third, and the support (121) By attaching the light sensor having the light receiving portion and the light emitting portion to the blocking rod 3a, the blocking rod 3a is configured to detect whether the blocking rod 3a is completely lowered.

The blocking rod position detecting means detects an output signal of a switching means (contact switch, optical sensor, magnetic switch, etc.) 122 installed on the support 121 after the road blocking operation of the crossing blocker is performed to block the blocking rod 3a. Detecting whether the road bar blocking operation is completed, and if the blocking rod 3a seating signal is not detected from the switching means 122 so that a predetermined time (time when the lowering operation of the blocking bar is completed) passes, Destruction of the blocking rod (3a), or will be recognized as a malfunction of the crossing blocker.

The blocking rod position detecting means is characterized in that it is composed of a multi-contact switching means for detecting the position of each moment of movement of the blocking rod of the crossing blocker.

For example, as shown in FIG. 8, after the plurality of switch contacts 124 are installed at regular intervals in the cylindrical glass tube 123, mercury 125 is sealed and installed at the end of the blocking rod. . Then, the glass tube 123 is inclined according to the lowering operation of the blocking rod 3a, and the switching contact 124 is sequentially closed by the sealed mercury 125, thereby preventing the road blocking state of the blocking rod 3a. It can be detected. That is, when none of the switch contacts 124 is closed, the blocking rod 3a is in a vertical state (road open state), and when all of the switch contacts 124 are closed, the blocking rod 3a is in a horizontal state (road blocking state). to be. In addition, if the switch contact 124 is not closed for a predetermined time (time for closing the first switch contact due to the lowering of the blocking bar) after the road blocking operation of the crossing blocker is performed, the blocking bar 3a is closed. It is destroyed or the crossing block 3 is malfunctioning (or inoperable).

The obstacle detecting / recording means includes: a camera unit for acquiring an image in the pad; It characterized in that it comprises a data storage means for storing the image obtained from the camera unit.

The camera unit is characterized in that it comprises an infrared illumination and an infrared camera.

When the image is stored in the data storage means, the acquired image is characterized by A / D conversion (analog / digital conversion) and stored as a digital signal.

The data storage means is preferably composed of a hard disk (HARD DISK) of a computer.

The obstacle detection / recording means can be used semi-permanently without supplying additional recording media by continuously updating and storing the data when the train crosses the railroad normally.

The transmitting means includes an encoding unit for encoding an input signal; A transmission code setting unit connected to the encoding unit to give a specific recognition code when encoding the signal input from the encoding unit; And a transmitter for transmitting a signal input from the encoder.

That is, since a specific recognition code is assigned when encoding the input signal, only the receiver having the same recognition code as the recognition code is configured to receive the signal, and the input signal is preferably wirelessly transmitted.

The crossing blocker is characterized in that the falling speed is variablely controlled so that the road blocking operation is made quickly within a range that does not cause a safety accident due to the road blocking operation of the blocking rod.

The crossing blocker is characterized in that each installed on both sides of the road to block the road on both sides of the road based on the center line of the road.

Crossing blockers installed on both sides of the road, when a signal indicating that an emergency situation has occurred through the emergency switch is input, the road blocking operation of the crosswalk blocker located in front of the traveling direction of the pedestrian (person, vehicle) To operate.

This is to lift the blocking rod located in the forward direction of the vehicle when the road is blocked in the state where the vehicle is present in the board, thereby allowing the vehicle trapped in the board to exit.

The train information display means includes: a letter display device for displaying information such as a crossing time of a railroad crossing and a transit time required by a letter; Characterized in that it consists of a voice guide device that displays the information about the train passing by voice.

It is preferable that the character display device is constituted by a known electronic display panel or a liquid crystal display device, and the voice guide device is preferably constituted by a known voice synthesizer.

The emergency switch is characterized in that the switch is installed on both sides of the crosswalk board consists of on / off switch indicating the occurrence and release of the emergency situation.

In addition, the train control means, receiving means for receiving a signal transmitted from the crossing control means; Speed detecting means for detecting a speed of the train; Blocking rod state display means for indicating a road blocking state of the blocking rod; Obstacle state display means for indicating whether or not an obstacle exists in the pad; When a signal indicating that the road blocking operation of the blocking rod has not been completed for a predetermined time has elapsed, a signal indicating that an obstacle exists in the footboard, or a signal indicating that an emergency has occurred is indicated. Alarm means for generating a predetermined alarm signal; Speed control means operated by a predetermined control signal to reduce the speed of the train or stop the operation of the train; Data storage means for storing data necessary for operating the railroad crossing section of the train; An alarm confirmation switch operated by the engineer to indicate that the engineer has recognized the occurrence of the alarm signal; The signal input / output terminal of the data storage means, the receiving means, the speed detecting means, the signal output terminal of the alarm confirmation switch, the blocking rod state display means, the obstacle state display means, the alarm means, and the speed control means. Is connected between the signal input terminal, the signal for the road blocking state of the blocking rod input from the receiving means, and the signal for the presence of the obstacle is detected and output to the blocking rod state display means and obstacle state display means, respectively, A signal indicating that the road blocking operation of the blocking rod is completed is not input or a signal indicating that an obstacle is present in the board is detected so that a predetermined time (time for the blocking rod to complete the road blocking operation) elapses after the blocking operation is started. Or a control signal indicating that an alarm signal is generated when a signal indicating an emergency situation is detected. After inputting to the stage, the predetermined time (the time required for the engine operator to take a countermeasure after hearing the alarm signal indicating the malfunction of the crossing board breaker: the corresponding time) after the alarm means is operated is elapsed. When a signal indicating the driver's alarm is not input through the alarm check switch, the speed detecting means detects the speed of the current train, and reduces the operating speed of the train so that a full distance for the speed is secured. Or a microcomputer for inputting a control signal for stopping the operation of the train to the speed control means.

In the case of stopping the operation of the train in the above it is characterized in that the alarm system is generated to the surrounding train by automatically operating the protection system of the train.

In addition, the receiving means includes: a receiving unit for receiving and outputting a signal transmitted from the crossing control means; A decoding unit for decoding the signal input from the receiving unit; And a receiving code setting unit connected to the signal input terminal of the decoding unit to give a specific recognition code when decoding the signal input from the decoding unit.

This is for receiving a signal having the same transmission code as the signal set in the reception code setting unit when receiving a signal transmitted from the transmission means having the transmission code setting unit. As a result, a signal other than a signal sent to the local station is received. The error caused by the reception can be eliminated.

The speed detecting means is characterized in that it is composed of a speed detector installed on the wheel side of the train.

The speed control means is characterized in that it is configured as an emergency brake of the train.

The speed control means is characterized by consisting of ATS (AUTOMATIC TRAIN STOPPER: train automatic stop device: hereinafter referred to as ATS).

When the speed control means inputs a control signal for generating an emergency braking signal to the ATS, the ATS generates an emergency braking signal to perform braking by operating the emergency brake of the train.

The data storage means is characterized by consisting of an internal memory of the microcomputer, or an external memory under the control of the microcomputer.

The external memory of the data storage means is preferably composed of a magnetic disk (MGNETIC DISK), or a magneto-optical disk (MAGNETO OPTICAL DISK).

The data required for the operation of the railroad crossing section of the train stored in the data storage means is data about the response time, which is the time required for the engine operator to take a countermeasure after listening to an alarm signal indicating a malfunction of the railroad crossing breaker, or an unexpected railroad crossing. Data on the safe driving speed to safely brake the train in preparation for an accident, or the blocking operation of the crossing blocker by setting a predetermined error range to the average operating time to start and complete the descent operation. Some or all of the data for the time, or the data for the crossing blocker that indicates the malfunction is characterized in that it is configured by cooking as needed.

The railroad crossing security device of the present invention configured as described above calculates the direction, speed, length, crossing arrival time, crossing crossing time, and alarm start point of a train entering the crossing through train detecting means, crossing crossing breaker and crossing crossing When the alarm device is controlled for a while, if the road blocking state of the blocking rod is bad, an obstacle is present in the footboard, or a signal indicating an emergency is input, the driver is notified of this and the train is automatically stopped when necessary. By doing so, it is possible to prevent crossings.

In addition, by controlling the road blocking operation of the crossing blocker at a variable speed, it is possible to perform the road blocking operation quickly, and by storing the image of the crossing of the train crossing, it is easy to analyze the cause and determine the responsibility when an accident occurs.

Hereinafter, with reference to the accompanying drawings for an embodiment according to the technical idea of the present invention 'railroad crossing security device configured as described above in detail as follows.

<Example>

In the present embodiment, two wheel detection devices are used to detect the direction, speed, length, crossing time, crossing time and alarm start point of the train, and the position of the blocking rod is continuously detected.

In addition, in the present embodiment, an infrared illumination and an infrared camera are used to acquire an image of a train passing situation at a crossing, and the obtained image is automatically updated and stored twice in a hard disk.

In addition, the character display device uses an electric signboard, the emergency switch is installed on each side of the middle of the crossing, so that the passers can pass easily in each direction.

In this embodiment, the speed detector provided on the wheel side of the train is used as the speed detection means, and ATS is used as the speed control means.

In addition, in this embodiment, a warning light is used using a warning light and a buzzer.

First, as shown in Fig. 2 and Fig. 3, four crossing blockers (181 to 184) are installed on both sides of the road with a rail line therebetween, and the first blocking rod position detecting means at each end of the blocking rods (181a to 184a). To fourth blocking rod position detecting means 121 to 124 are provided.

Here, the crossing blockers 181 to 184 variably control the operating speed of a motor (not shown) for operating the blocking rod, so that the rapid descending operation is performed within a range where a safety accident due to the lowering operation of the blocking rod does not occur. To control. Figure 4 is an example showing the descending speed curve of the blocking rod.

In addition, the blocking rod position detecting means (121 to 124), as shown in Figure 8, after installing a plurality of switch contacts 124 at regular intervals in the cylindrical glass tube 123, the mercury 125 It is constructed by sealing. Then, the glass tube 123 is inclined according to the lowering operation of the blocking rod 3a, and the switching contact 124 is sequentially closed by the sealed mercury 125, and the microcomputer switches the switching state of the switching contact 124. It detects at 150 to detect the road blocking state of the blocking rod (3a).

On the other hand, the first wheel detection device 111 and the second wheel detection device 112 is installed at a predetermined distance (L1) in front of the crosswalk, and pass through the electronic sign and the voice guidance device 192, which is a character display device 191 It is installed on the right side of the heading direction. In this embodiment, it is installed using the strut of the crosswalk alarm device 170.

Here, the wheel detecting apparatuses 111 and 112 are known wheel detecting apparatuses that detect the wheels by using the effect that the gain of the oscillation frequency is reduced by the change of inductance when the metal object approaches the LC oscillating circuit. 5 and 6, the antenna portion 111a which is installed in the rail consisting of an LC oscillation circuit; A wheel detector 111b for detecting a gain change due to a change in inductance that changes when a wheel of a train approaches the antenna unit; Hold part 111c 멎 It is comprised from the regulator part 111d.

The wheel detecting devices 111 and 112 receive LC from the wheel detecting unit 111b and receive LC power, and when the wheel (metal object) of the train approaches, the gain due to the change in inductance is changed. The wheel detection unit 111b detects the change and outputs a signal indicating the change. The holding part 111c is used as a signal for controlling the relay by holding the signal output from the wheel detecting part 111b for a predetermined time (about 3 seconds). 6 shows the attachment state of the wheel detection device antenna portion 111a.

In addition, the emergency switch (161, 162) are respectively installed on both sides of the center of the railroad crossing, and the infrared camera 131a and the infrared light (132b) are installed above one side of the center of the railroad crossing, and then the signal output terminal of the train detecting means (110) , The blocking rod position detecting means 120 and the signal output terminal of the emergency switch 160 is connected to the signal input terminal of the microcomputer 150, and the crossing alarm system 170 and the crossing table circuit breaker are connected to the signal output terminal of the microcomputer 150. 180, the train information display means 192, and the signal input terminal of the transmission means 140 are connected, and the signal input / output terminal of the obstacle detection / recording means 130 is connected to the signal input / output terminal of the microcomputer 150. Thus, the crosswalk control means 100 according to the present embodiment is configured. 9 shows an example of the installation state of the infrared camera 131a and the extra-ultraviolet light 131b.

In addition, the receiving means 210, the alarm confirmation switch 220, and the signal output terminal of the speed detecting means 230 is connected to the signal input terminal of the microcomputer 240, and the blocking rod state display on the signal output terminal of the microcomputer 240 The means 250, the obstacle state display means 260, and the signal input terminal of the alarm means 270 are connected, and the data storage means 290 is connected to constitute the train control means 200 according to the present embodiment. .

At this time, the data required for operating the railroad crossing section of the train stored in the data storage means 290 is the data on the response time, which is the time required for the engine operator to listen to an alarm signal indicating an operation failure of the railroad crossing breaker. And, by setting a predetermined error range in the data on the safe driving speed that can safely brake the train in case of accidental crossing crossing, and the average operating time for the blocking rod of the crossing crossing breaker to start the descent operation and complete it. It consists of data about completion time of blocking operation, which is a time, and data about a circuit breaker indicating a malfunction is newly stored automatically.

Hereinafter, the operation and effects of the present embodiment configured as described above will be described in detail.

First, the operation of the crossing control means will be described with reference to FIGS. 3, 12, and 13 as follows.

When the train reaches the point L2 from the crossing through the point 'L1 + L2', the first wheel detecting device 111 and the second wheel detecting device 112 detect the wheel of the train, and the driving direction and speed of the train. , The length, the arrival time of the crossing, the crossing time required to calculate the crossing (S1 step).

The process of calculating the traveling direction, speed, length, arrival time and passing time of the train is as shown in FIG.

That is, when the first wheel of the train passes through the first wheel detection device 111, the microcomputer 150 operates a timer (not shown) so that the first wheel of the train in the second wheel detection device 112 is moved. The time T1 until detection is calculated.

In this case, the first wheel detection device 111 calculates the time required for the detection of the first wheel and the required time T2 until the last wheel is detected together. Whether it is the last wheel or not is determined as the last wheel when the wheel detected within a predetermined time after the first wheel is detected is not detected for a predetermined time or more.

After the detection of the T1 and T2, the train is moved from the position L2 where the second wheel detection device 112 is installed and the distance L1 between the first wheel detection device 111 and the second wheel detection device 112. The speed, length, arrival time, passing time, and alarm start point are calculated as follows.

Train speed V = T1 / L1

Train length TL = T2 × V

Crossing arrival time T3 = L2 / V

Train passing time T4 = T2

Alarm start point P = V × (T5 + T6)

Here, T5 represents the time required to cross the crossing, T6 represents the spare time.

The crossing crossing time T5 is calculated as follows.

T5 = [2L ₁ + L ₂ (n-1) + L ₃ ] / P _V + P _T [sec]

L ₁ : Distance from the center of outer rail to stop position of pedestrians [m]

L ₂ : Line spacing when double track or more [m]

L ₃ : Length of car [m]

n: number of tracks

P _T : Time required for safety check [sec]

P _V : Crossing speed [m / sec]

On the other hand, after calculating the direction, speed, length of the train, the arrival time of the crossing, and the time required for passing the train, the message indicating the arrival time of the crossing, the time required for the passage and the arrival of the train is displayed on the electronic display device 191. It is output through (step S2).

Here, the reason for calculating the traveling direction of the train is to detect a case where the train does not need to operate the crossing security device, such as when the train is backing in the crossing section, or the disconnection section. In this embodiment, the case in which the train reverses will not be considered. This is because when it is determined that the train is going backward, it is not necessary to perform the operation of the crossing security device, and no additional explanation is required.

After performing step S2, the microcomputer 150 determines whether the train has arrived at the alarm start point from the calculated speed and elapsed time of the train (step S3), and when it is determined that the alarm has arrived at the alarm start point. In addition, while operating the crosswalk alarm device 170, the crosswalk breaker 180, and the blocking rod position detection means 120, the voice guidance device 192 performs a voice guidance indicating the entry of the train (S4). step).

After performing step S4, the operator continuously detects whether the emergency switch 160 has been activated, and if it is determined that the emergency switch is activated, a signal indicating this is transmitted through the transmission means 140. At the same time as transmitting to the train control means 200, the road blocking operation of the crossing blocker existing in the forward direction of the pedestrian is released (step S5).

In addition, after performing the step S4, after transmitting the road blocking state of the blocking rod input from the blocking rod position detecting means 120 to the train control means 200 through the transmitting means 140 (step S6), Continuously detecting whether the road blocking operation of the blocking rod is completed (step S7), and when the road blocking operation is completed, a signal indicating this is transmitted to the train control means 200 through the transmission means 140 (S9). In step S8, when the road blocking operation is not completed so that the blocking operation completion time elapses, a signal indicating that the road blocking operation is poor is transmitted to the train control means 200 (step S8).

On the other hand, after performing the step S8 or step S9, by operating the obstacle detection / recording means 130 continuously detects whether there is an obstacle in the footboard until the railroad crossing of the train is completed, The result is transmitted to the train control means 200 (step S10).

The presence or absence of the obstacle is determined by analyzing the image when the obstacle does not exist in the crossing and the differential image obtained by subtracting the image of the blocking rod after the road is blocked, and thus the detailed description thereof will be omitted.

At this time, the size of the residual image (that is, the image newly formed on the pad) of the difference image is calculated, and when the size is less than or equal to a predetermined value, it is not determined as an obstacle.

This is to prevent an error that is judged as an obstacle such as fallen leaves or tissues.

On the other hand, when the passage of the railroad crossing is completed, after storing the image acquired during the crossing time of the railroad crossing passing time in the data storage means 132, the railroad crossing security device is returned to its original state (step S11). In the case of storing the image, by updating two times and storing the image, it is possible to reduce the capacity of the hard disk as a data storage means and to use it permanently without additional addition.

Hereinafter, the operation of the train control means will be described with reference to FIG.

First, the microcomputer 240 continuously detects whether a signal indicating the road blocking state of the blocking rod is received through the receiving means 210, and when the signal indicating the road blocking state of the blocking rod is received, the blocking rod state displaying means. This is indicated at 250 (step R1).

Thereafter, it is determined whether a signal indicating completion of road blocking of the blocking rod or a signal indicating bad road blocking is received (step R2).

At this time, when a signal indicating a road blocking failure of the blocking rod is received, the warning lamp 271 and the buzzer 272 are operated to call the driver's attention. If the alarm check switch 220 does not operate, the speed of the train through the speed control means 280 to detect the current speed of the train through the speed detection means 230 to be below the safe driving speed to secure the full distance for the train. After controlling the speed, add and save the crossing blocker of the current position to the list of badly crossing crossing blocker (step R3). In the present embodiment, the speed control means 280, by using the ATS, substantially controls the speed of the train through the emergency brake of the ATS.

On the other hand, when a signal indicating completion of the road blocking of the blocking rod is received as a result of performing the step R2, the signal waits to receive a signal indicating whether or not there is an obstacle is displayed on the obstacle state display means (260) (step R4).

12 shows an exemplary configuration of the blocking rod position display means 250, the obstacle state display means 260, and the alarm means 270. Reference numeral 251 denotes a road blocking state of the blocking rod. Reference numeral 252 denotes road blocking completion, reference numeral 253 denotes lamps each indicating a road blocking defect, reference numeral 261 denotes that no obstacle exists, and reference numeral 262 denotes a lamp indicating that an obstacle exists.

At this time, when a signal indicating that an obstacle is present or a signal indicating that an emergency has occurred is received, the warning lamp 271 and the buzzer 272 are operated to call the driver's attention, If the alarm check switch 220 is not operated so that the elapsed time is to stop the operation of the train through the speed detecting means 230 (step R5), thereby preventing the crossing crossing accident.

That is, when a train enters a railroad crossing, first, it informs the passenger of the train's entry with a visual display device and an audio display device. Second, the road blocking state, the presence of obstacles, Not only will the driver know the same emergency, but also the automatic operation of the train if necessary, so that it is possible to prevent crosswalk accidents.

In addition, when the operation of the train is stopped in the above process, the microcomputer 240 automatically operates a protection system (not shown) of the train to generate an alarm signal to the surrounding trains, which causes the train driver of another train to proceed to the train. Be aware of the situation of crossing.

However, in the above embodiment, two wheel detection devices were used, but it can be understood that two or more wheel detection devices can be used.

In addition, in the above embodiment, the operation and end of the crossing security device was calculated and controlled from the speed, length, crossing arrival time and crossing time of the train, but a separate wheel detection device was installed at a point passing the crossing alarm. Note that it can be used as a starting point to control the termination of the security device.

In addition, in the above embodiment, the present embodiment is configured using one infrared light and one infrared camera, but it is understood that one or more infrared lights and an infrared camera may be used.

In addition, in the above-described embodiment, the display panel is used as the character display device, and the display content is limited to the text. However, other screen display devices (for example, a liquid crystal display device, etc.) other than the display panel may be used. Note that the displayed content is also not limited to text (eg graphics).

In addition, in the above embodiment, the ATS is used as the speed control means, but other automatic train control devices (ATC, ATO, etc.) can be used, as well as directly controlling the operation of the emergency brake to perform its function. Let's find out.

In addition, in the above embodiment, although the lowering operation of the blocking rod is initially operated quickly and slowly later, the variable speed control method for controlling the lowering operation of the blocking rod is not limited thereto.

In addition, in the above embodiment, it has been described that the image obtained through the camera unit is simply stored in the data storage means, but it is apparent that the image can be compressed and stored through an MPEG device or the like.

As described above, the present invention 'railroad crossing security device', in particular, by calculating the direction, speed, length, crosswalk arrival time, crossing crossing time, alarm start point of the train entering the crossing through the train detection means In the event that the crossing blocker and the crossing alarm system are controlled for a time, the roadblock of the blocking rod is bad, there is an obstacle in the board, or an emergency signal is input. By automatically stopping the operation of the crossing will have the effect of preventing accidents. In addition, by controlling the road blocking operation of the crossing blocker at a variable speed, it is possible to perform the road blocking operation quickly, and by storing the image of the passing of the crossing of the train, it is easy to analyze the cause and identify the responsibility when an accident occurs.

Claims (20)

Train detecting means, which is installed at a crossing and consists of at least two wheel detecting devices for detecting the existence of a train by detecting wheels of a train; Blocking rod position detecting means which is operated by a predetermined control signal to detect a road blocking state of the blocking rod; It consists of a camera unit and data storage means and is installed on one side of the crosswalk, and operated by a predetermined control signal to determine whether an obstruction is present in the crosswalk board from the image where no obstacle exists and the image after the crosswalk breaker is operated. Obstacle detection / recording means for judging and recording an image of the crossing situation until the train passes the crossing in the data storage means; Transmitting means for transmitting an input predetermined signal; An emergency switch installed at one side of a crosswalk board and operated by a passenger to output a signal indicating an emergency situation; A crosswalk alarm system that operates according to a predetermined control signal; A crossing blocker operating by a predetermined control signal; Train information display means for indicating information on passing the train crossing; The train detecting means, the blocking rod position detecting means, the signal output terminal of the emergency switch, the signal input / output terminal of the obstacle detecting / recording means, the transmitting means, the railroad crossing alarm device, the railroad crossing breaker, and the signal of the train information display means. Connected between input terminals, the wheel detecting signal input from the train detecting means is analyzed to calculate the direction, speed, length, crossing time, crossing time and crossing time of the crossing, and the alarm starting point. It controls the breaker on time, and shows the arrival time and the passing time of the train through the train information display means, and transmits the signal for the position of the blocking rod, the presence or absence of obstacles, and the signal for emergency occurrence through the transmission means. It is composed of microcomputers and calculates the direction, speed, length, arrival time of crossing, crossing time and alarm start time of train entering crossing. A train that crosses the railroad crossing alarm system and the railroad crossing breaker, informs the passengers of the arrival time and the estimated time of passing the railroad crossing, and signals the blocking roads, the presence of obstacles in the footboard, and the occurrence of emergency situations. A crossing crossing control means for transmitting to an engineer of the station and storing an image of the passing of the crossing of the train; Receiving means which is installed in a train and receives a signal transmitted to the crossing control means; Speed detecting means for detecting a speed of the train; Blocking rod state display means for indicating a road blocking state of the blocking rod; Obstacle state display means for indicating whether or not an obstacle exists in the pad; When a signal indicating that the road blocking operation of the blocking rod has not been completed for a predetermined time has elapsed, a signal indicating that an obstacle exists in the footboard, or a signal indicating that an emergency has occurred is indicated. Neck and neck means for generating a predetermined alarm signal; Speed control means operated by a predetermined control signal to reduce the speed of the train or stop the operation of the train; Data storage means for storing data necessary for operating the railroad crossing section of the train; An alarm confirmation switch operated by the engineer to indicate that the engineer has recognized the occurrence of the alarm signal; The signal input / output terminal of the data storage means, the receiving means, the speed detecting means, the signal output terminal of the alarm confirmation switch, the blocking rod state display means, the obstacle state display means, the alarm means, and the speed control means. Connected between the signal input terminals, the signal for the road blocking state of the blocking rod input from the receiving means and the signal for the presence or absence of obstacles are detected and output to the blocking rod state display means and the obstacle state display means, respectively, If a predetermined time has elapsed after the blocking operation is started, a signal indicating that the road blocking operation of the blocking rod is completed is not input, or a signal indicating that an obstacle exists in the board is detected, or a signal indicating an emergency situation has been detected. In this case, after inputting a control signal of generating an alarm signal to the alarm means, the alarm means is operated. After a predetermined time has elapsed, if a signal indicating the driver's alarm is not input through the alarm check switch, the speed detecting means detects the speed of the current train and secures an intermittent distance to the speed. It consists of a microcomputer to reduce the running speed of the train, or to input a control signal to stop the operation of the train to the speed control means, the road blocking state transmitted from the crosswalk control means and the presence of obstacles in the footboard In the event that a signal indicating malfunction of the crossing breaker is received, a signal indicating that an obstacle is present in the footboard is received, or a signal indicating the occurrence of an emergency situation is received, an alarm for each of the above situations is given. After generating a signal, wait for the driver's response Such that the absence of countermeasures, the engineer crossing security device, characterized by configured by comprising a thermal control means for automatically controlling the operation of trains that to reduce the speed of the train, or to stop the running of the train. Claim 2 has been deleted. The railroad crossing security device according to claim 1, wherein the blocking bar position detecting means comprises switching means that is turned on or off when the blocking bar of the crossing block is completely lowered. The railroad crossing security device according to claim 1, wherein the blocking rod position detecting means comprises a multi-contact switching means for detecting a position of each moment of movement of the blocking rod of the crossing blocker. The railroad crossing security device according to claim 4, wherein the multi-contact switching means is formed by sealing a mercury after installing a plurality of switch contacts at a predetermined interval in a cylindrical glass tube. The apparatus of claim 1, wherein the obstacle detection / recording means comprises: a camera unit for acquiring an image in the pad; Railroad crossing security device, characterized in that it comprises a data storage means for storing the image obtained from the camera unit. The railroad crossing security device of claim 6, wherein the camera unit comprises an infrared light and an infrared camera. The railroad crossing security device according to claim 6, wherein when the image is stored in the data storage means, the acquired image is A / D converted and stored as a digital signal. 2. The apparatus of claim 1, wherein the transmitting means comprises: an encoding unit for encoding an input signal; A transmission code setting unit connected to the encoding unit to give a specific recognition code when encoding the signal input from the encoding unit; Railroad crossing security device comprising a transmitting unit for transmitting a signal input from the encoding unit. The railroad crossing security device according to claim 1, wherein the crossing blocker controls the descending speed so that the road blocking operation is quickly performed within a range where a safety accident due to the road blocking operation of the blocking rod does not occur. The railroad crossing security device according to claim 1, wherein the crossing blockers are installed on both sides of the road so as to block the road from both sides of the road based on the center line of the road. 12. The roadside barriers according to claim 11, wherein the crosswalk blockers respectively installed on both sides of the road cancel the road blocking operation of the crosswalk blockers located in front of the traveling direction when a signal indicating that an emergency situation has occurred through the emergency switch is input. Railroad crossing security device, characterized in that to operate. 2. The apparatus of claim 1, wherein the train information display means comprises: a text display device for displaying information such as a crossing time of a railroad crossing and a transit time required by a text; Railroad crossing security device, characterized in that consisting of a voice guidance device that displays the information about the train passing by voice. Claim 14 has been deleted. The railroad crossing security device according to claim 1, wherein when the operation of the train is stopped through the speed control means, the protection system of the train is automatically operated to generate an alarm signal to the surrounding trains. 2. The apparatus of claim 1, wherein the receiving unit comprises: a receiving unit which receives and outputs a signal transmitted from the crosswalk control unit; A decoding unit for decoding the signal input from the receiving unit; And a receiving code setting unit connected to the signal input terminal of the decoding unit and configured to give a specific recognition code when decoding the signal input from the decoding unit. The railroad crossing security device according to claim 1, wherein the speed detecting means comprises a speed detector provided on a wheel side of a train. The railroad crossing security device according to claim 1, wherein the speed control means comprises an emergency brake of a train. The railroad crossing security device according to claim 1, wherein the data storage means comprises an internal memory of the microcomputer or an external memory controlled by the microcomputer. According to claim 1, wherein the data required for operating the railroad crossing section of the train stored in the data storage means, for the response time which is the time it takes for the engineer to take a response by listening to the alarm signal indicating the malfunction of the railroad crossing breaker Data or data on the safe driving speed to safely brake the train in case of accidental crossing, or the average operating time for the blocking rod of the crossing breaker to start and complete the descent operation. Railroad crossing security device, characterized in that the configuration of the part or all of the data for the time limit, the block operation completion time, or the data for the crossing block breaker indicating a malfunction.