JP5582826B2 - Platform door condition monitoring system - Google Patents

Description

  The present invention relates to a platform door state monitoring system that monitors the state of a platform door provided in a station.

  A conventional platform door state monitoring system is disclosed in Japanese Patent Application Laid-Open No. 2006-205970. In order to determine the detection signal input from the sensor, multiple determination patterns are registered in the device in advance, and the registered determination pattern does not match the detection signal input from the sensor. If they match, they are recorded in chronological order, and the detection and approach of the object are grasped by the change in the state.

JP 2006-205970 A

  In the conventional platform door state monitoring system described above, it is composed of a plurality of sensors, but as described above, the determination processing circuit is based on the individual determination pattern for each sensor or a plurality of combination determination patterns. As the number of sensors is increased and the number of sensors is increased, the recognition rate is improved, but conversely, the device configuration is complicated and expensive, and the number of combination determination patterns increases. There has been a problem that the determination process becomes slow.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a platform door state monitoring system capable of performing determination processing in a short time with a simple configuration.

The platform door condition monitoring system according to the present invention is based on an area sensor for detecting a condition around the platform door, and information inputted from the area sensor, and determines whether to get in from the size and flow line of the detected object. only set a drive riser boarding detection unit has a last-minute boarding determination unit that performs, the last-minute boarding detection unit includes an input processing unit for processing the information inputted from the area sensor, and treated with the input processing unit data An object detection information processing unit that performs classification processing for each object at a predetermined distance based on the above, a rushing boarding determination unit that performs a rushing boarding determination process by filtering the size of the object and obtaining a flow line, and the rushing boarding It is comprised from the determination result output process part which outputs the determination result of a determination part .

  The platform door state monitoring system according to the present invention can provide a platform door state monitoring system capable of performing a determination process in a short time with a simple configuration.

It is a block diagram which shows the structure of the platform door state monitoring system concerning Embodiment 1 of this invention. It is a state diagram which shows the measurement state by the area sensor in the platform door state monitoring system concerning Embodiment 1 of this invention. It is a state diagram which shows the processing state of the input process part in the platform door state monitoring system concerning Embodiment 1 of this invention. It is a block diagram which shows operation | movement of the platform door state monitoring system concerning Embodiment 1 of this invention. It is a flowchart figure which shows operation | movement of the platform door state monitoring system concerning Embodiment 1 of this invention.

Embodiment 1.
Embodiment 1 of the present invention will be described below with reference to FIGS. 1 is a block diagram showing the configuration of a platform door state monitoring system according to Embodiment 1 of the present invention. FIG. 2 is a state diagram showing a measurement state by the area sensor in the platform door state monitoring system according to the first embodiment of the present invention. FIG. 3 is a state diagram showing the processing state of the input processing unit in the platform door state monitoring system according to Embodiment 1 of the present invention. FIG. 4 is a block diagram showing the operation of the platform door state monitoring system according to Embodiment 1 of the present invention. FIG. 5 is a flowchart showing the operation of the platform door state monitoring system according to Embodiment 1 of the present invention.

  In each of these figures, 1 is an area sensor that uses, for example, a laser beam 1a for detecting the state around the platform door, and 2 is based on the information input from the area sensor 1 and from the size and flow line of the detected object. It is a rush-on boarding detection part provided with the rush-on boarding judgment part which judges rush-on boarding. The rush boarding detection unit 2 performs an input processing unit 3 that processes information input from the area sensor 1 and a classification process for each object at a predetermined distance based on data processed by the input processing unit 3. Object detection information processing unit 4 that performs the object size filtering and flow line determination, the rush-on boarding determination unit 5 that performs the rush-on board determination process, and the determination result output process that notifies the determination result to the home fence individual control unit Part 6.

  FIG. 2 explains the contents detected by the area sensor 1 around the platform door. As shown in FIG. 2, the area sensor 1 scans the detection target area at a high speed at a constant angle, for example, as in measurement point-1 to measurement point-90, and within the detection target area. When an object that is a detection object enters, the area sensor 1 measures the arrival time of reflected light from the object, measures the distance to the object, and outputs it to the host. Even when there are a plurality of detected objects, the same processing is performed, and the processing time is approximately several tens of milliseconds until the detection area is scanned and the distance is obtained.

  For example, as shown in FIG. 2, when the object A is detected, the distance LA to the object A is measured, and when the object B is detected, the distance LB to the object B is measured.

  FIG. 3 explains the processing contents of the input processing unit 3 in the rush-on boarding detection unit 2. The input processing unit 3 in the rush-on boarding detection unit 2 generates the internal data table DT1 for each measurement point based on the information (distance, angle, etc.) of the object detected by the area sensor 1.

  Next, the operation of the rush-on boarding detection unit 2 will be described based on the block diagram shown in FIG. 4 and the flowchart shown in FIG.

  First, when sensing of the area sensor 1 is started (ST1), scan data detected from the area sensor 1 is transmitted, and a data table DT1 for each measurement point generated by the input processing unit 3 described above. Is generated.

  Next, the object detection information processing unit 4 refers to the measurement point data, and among the detected objects, those having the same detection distance at the same distance are grouped (ST2), and the object detection information DT2 is obtained. Generated.

Next, the process shifts to the rush-on boarding determination unit 5, and first, based on the object detection information DT2 which is grouped data, the size (size) of an object as a detection object is determined as a detection position (distance) and a detection direction (
The detected object size generation process (ST3) is performed by calculating from (angle), and the detected size is compared with a predetermined size or larger (ST4). Then, it is excluded from the rush-on boarding determination target (ST5). By checking the size whether or not the size is larger than the predetermined size, it is possible to suppress erroneous detection by a small object such as a bird or a flying object.

  Next, when the size check is completed, the object detection information DT3 scanned and recorded in the past is read (ST6), and the same object is confirmed (detection time, object size, detection distance) (ST7). Then, the object detection information is written (ST8), and whether or not they are the same object is compared (ST9). If they are not determined to be the same object, they are excluded from the rush boarding determination target (ST10).

  If it is determined that they are the same object, the movement direction and movement speed of all the detected objects are calculated from the movement amount (positional difference) from the previous time (ST11).

  Next, in the rush-on boarding determination process, a rush-on boarding determination process of an object approaching at a predetermined speed or higher is performed from the moving direction and the moving speed of the object toward the platform fence of the platform door (ST12). By checking the direction of the moving object, it is possible to prevent people crossing the platform fence from being detected.

  When it is determined that the user boarded the vehicle, the determination result output processing unit 6 is notified of the size and moving direction of the detected object, and the determination result output processing unit 6 controls the home fence control device and vehicle door control (not shown). By outputting to the equipment (ST13), it is possible to slow down or stop the opening and closing speed of the home fence door and vehicle door, prevent door scissors at the door due to rushing boarding in advance, and smooth train operation And passenger safety is improved.

  As described above, according to the first embodiment of the present invention, as in the conventional platform door state monitoring system described above, not the pattern matching process but the arithmetic process is the center, so that high speed (within 100 msec) is achieved. This makes it possible to perform the determination process in a short time. In addition, there is an advantage that the number of registration data tables in the input processing unit is small and the configuration is simple.

  The present invention is suitable for realizing a platform door state monitoring system capable of performing determination processing in a short time with a simple configuration.

DESCRIPTION OF SYMBOLS 1 Area sensor 1a Laser light 2 Ride-in boarding detection part 3 Input processing part 4 Object detection information processing part 5 Rush-in boarding determination part 6 Judgment result output part

Claims (2)

An area sensor for detecting the state of the peripheral platform door, on the basis of information input from the area sensor, driving with a last-minute boarding determination unit the size of the detection object and the flow line and determines last-minute ride riser setting a boarding detection unit only, the last-minute boarding detection unit includes an input processing unit for processing the information inputted from the area sensor, each object at a predetermined distance on the basis of the data processed by the input processing unit An object detection information processing unit that performs sorting processing, a rush boarding determination unit that performs rush boarding determination processing by obtaining filtering and flow lines of the object, and a determination result output that outputs a determination result of the rush boarding determination unit A platform door state monitoring system comprising a processing unit . The platform door condition monitoring system according to claim 1, wherein the area sensor uses a laser beam.

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