JPS628287A - Gate unit - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field The present invention relates to a gate device that opens and closes a door by detecting the presence or movement of a person passing through a passageway.

Summary of the Invention In the gate device according to the present invention, stripes are formed on a passageway, and a stripe detection device is installed at a position where the stripes can be detected.

With the above configuration, when there are no passersby in the passage, the stripe detection device detects the entire stripe, but when a passerby is passing, it detects the part of the stripe that is blocked by the passerby. I can't □. The stripe detection device is configured to detect the stripe fragment by fragment, and it is possible to detect the presence of a passerby at the detection position of a stripe fragment that could not be detected. Controls door opening/closing, etc.

(C) Conventional technology and its disadvantages In gate devices such as automatic ticket gates, in order to detect passersby such as passengers, conventionally more than 10 photosensors are installed per device, and turning them on and off is complicated. The passage of passengers, etc. was detected by performing various judgment processes. In such an automatic ticket gate, passersby such as passengers pass through within a few seconds, so the above-mentioned determination process for controlling the opening and closing of the door must be performed very quickly. Therefore, the elements used in the control section are required to have high performance. In addition, a plurality of gate devices are installed in parallel at large ticket gates and other exits, but in conventional devices, each of them must be equipped with a passage detection device and a control unit similar to those described above. It has not been possible to reduce the cost of the facility by using a single detection device or control unit.

(d) Purpose of the Invention In view of the above-mentioned drawbacks, the present invention provides a gate device that can detect the presence of a passerby through a simple process and can also control multiple devices with a single control unit. With the goal.

+81 Structure and effect of the invention This invention includes a stripe formed on a passage, a stripe detection device that divides the stripe into a plurality of fragments and sets a detection position for each fragment, and also includes a stripe detection device that divides the stripe into a plurality of fragments and sets a detection position for each fragment. The apparatus is characterized by comprising a traffic detection means for detecting the presence of a passerby at a detection position where no stripe fragment is detected by determining whether or not a stripe is detected for each of the detection positions of the apparatus.

According to the present invention, by determining the composition quantity as described above, the state of the passage, that is, the presence or absence of passersby, etc. can be detected by determining whether or not each fragment of the linear stripe is detected. I can do it. This makes it possible to continuously monitor the movement of passersby and the like, and to control the opening and closing of the door by determining the movement of passersby and the like through a simple judgment. Also,
The above stripe detection device can be easily constructed by using a television camera to detect the presence or absence of a stripe image, and by using this device, it is possible to detect passersby in multiple passages and to control door opening/closing in a simple manner. This can be done with one control unit. This facilitates centralized control, and has the advantage of being able to control passersby in medium-sized passages efficiently and at low cost.

(f) Embodiment FIG. 1 is a schematic diagram of an automated ticket gate equipped with an automatic ticket gate (gate device) according to an embodiment of the present invention. Three automatic ticket gates 1.1' and 1' are installed at this automated ticket gate. The automatic ticket gate will be explained below using the automatic ticket gate 1 as a representative. A person who wishes to pass through this automatic ticket gate 1 must insert a card such as a ticket into the card-throwing entrance 4 and enter the door 3.
The direction of zero passing through the passageway (blocked by door 3 in the figure) after opening (double-dashed line) is from the front side to the back side in the figure. Side walls 7 are installed on both sides of the automated ticket gate to prevent unauthorized passage. A television camera 6 is installed at the upper left of the automatic ticket gates 1.1', 1', and photographs the aisle side (left side) of the right-hand side devices of the three automatic ticket gates 1)', 1*.

FIG. 3 shows a perspective view of the right side device of the automatic ticket gate 1 according to the above embodiment. The card slot 4 is installed at the upper front of the device, so that a person intending to pass through this automatic ticket gate can insert a card such as a ticket. The inserted card is conveyed through a conveyance path (not shown) formed in the device and is ejected to the card ejection port 5 provided at the rear of the device. (not shown) reads the data stored on the card. A door 3 is installed on the passage side (left side) of the device, and is normally closed (double-dot chain! 1) 1), but opens when a valid 11-do is inserted (solid line), allowing passersby to to allow the passage of traffic. A white stripe 2 is formed above the passage side of the device, and the television camera 6 has this stripe 2.
The image has been taken. FIG. 4 shows an example of an image taken by the television camera 6. The three automatic ticket gates 1, 1
', 1# images of the right device are shown. It should be noted that since the processing of this image signal is performed by a CPU, which will be described later, such a visually recognizable video is not necessary. Therefore, a CRT is not installed in this embodiment, and this figure and FIG. 5 are shown for convenience to aid explanation. However, the video of the television camera 6 can also be used for security monitoring, and in that case, this video output may be branched and output to a monitor.

FIG. 2 is a block diagram of the control section of the automated ticket gate. The signal from the television camera 6 is input to a synchronization signal separator 8. A synchronization signal separator 8 separates a horizontal synchronization signal and a vertical synchronization signal from the signal and inputs them to the CPU 1 via an interface 13, and inputs an image signal from which the synchronization signals have been separated to an A/D converter 9. do. A/
The D converter 9 converts this image signal into 1) 0 digital data and outputs it to the shift register 10, and the shift register 10 transfers the data to the CPUI every time it is shifted by 8 bits.
Enter I. A memory 12 is connected to this CPU 1), and the automatic ticket gate 1) Zl# is also connected thereto. The automatic ticket gate 1 includes a card reading device 1a,
A door opening/closing device 1b is included. The same applies to automatic ticket gates 1' and 1' (not shown).

The A/D converter 9 accepts and accepts input from the synchronizing signal separator 8 according to a conversion command from the CPUI 1. CPU
II outputs the conversion command when scanning the image receiving positions 20.20', 20'' (see FIG. 5) to receive the stripes 2.2', 2'', and scans the image receiving positions 20.20', 20'',
The image signals obtained by scanning 20' are each divided into 160 partial images (corresponding to the fragments of the present invention and detection positions), and A/D conversion is performed. The A/D conversion outputs a value of 0 or l based on the brightness of each partial image.

In this embodiment, 0.0. 1 is output for areas where other objects (for example, clothes of passersby) are received. These values are input to the CPU 1 in eight units by the shift register 10, and are stored in the CPU at each reception position. ! Each 20.20', 20'' is processed as 2 bytes of data X, Y, Z (see FIG. 5).

Here, the automatic ticket gate 1 will be described in the case where a passerby enters the automatic ticket gate. When a passerby enters the automatic ticket gate 1, the stripe 2 is blocked from the television camera 6, so the partial image of the blocked area is no longer an image of the stripe (white), but corresponds to that partial image. 1 is output as the value. In the CPU I, the output value corresponding to each partial image is treated as 2-byte data X, and when there are no passersby, the data is “000”.
0H'', but if a passerby enters the automatic ticket gate 1 and passes from right to left in FIG. 3, the data will change as shown in Table 1.

It can be seen that a passerby or the like exists at the position of stripe 2 corresponding to the partial image with l in Table 1. That is,
By determining which bit is set to 1 (determining the binary value), the location and direction of travel of the passerby can be determined.

Furthermore, since the television camera 6 can simultaneously photograph multiple stripes (in the case of this embodiment, three stripes 2.2' and 2#), multiple stripes can be photographed as long as the control speed of the CPU 1) is within the allowable range. It is possible to control multiple automatic ticket gates simultaneously.

FIG. 6 is a flowchart showing the operation of the control section of the automated ticket gate.

FIG. 5A shows an idle routine. Step nl (
Hereinafter, step nl will be simply referred to as ni.

) to n3 to determine whether a card is inserted into the automatic ticket gate [1, 1' or l#. When a card is inserted, the process proceeds to the respective card judgment subroutine. In steps n4 to n6, it is determined whether there is a passerby inside the automatic ticket gate 1, 1' or 1''. If there is a passerby, the process proceeds to the respective opening/closing control subroutines.

In addition, CPU II is time 2 to 1 in Table 1.
When data such as 0 is input from the shift register 10, the presence of a passerby inside the automatic ticket gate is detected. That is, n4 to n6 determine whether x, y, and z are 0000H'', and these n4 to n6 and the A/D converter 9
corresponds to the traffic detection means of this invention.

FIG. 2B shows the card determination subroutine. nl
At o, the inserted card is read, and at n1) it is determined whether the card is valid or not. As a result of the judgment, if the card is valid, the door is opened (n12), and if the card is invalid, the alarm of the automatic ticket gate is sounded and the process returns. Note that the sounding of the alarm is canceled when the invalid card is removed.

FIG. 2C shows the opening/closing control subroutine. n20
Then, determine whether door 3 (3', 3") is open or not. If it is open, you can pass through, so wait until it is determined in n21 that you can pass, and if it passes, close the door and return. do.

The CPU II inputs the timell from the shift register 10.
When the data shown in is input, it is determined whether a passerby has passed. If the door 3 (3', 3') is closed, it is assumed that a passerby has entered the automatic ticket gate even though the passage is not allowed, and the automatic ticket gate sounds an alarm and returns.

This warning is canceled when the passerby leaves the automatic ticket gate.

With the configuration described above, the automated ticket gate according to this embodiment can detect the presence and passage of passersby at the automatic ticket gates 1.1' and ## by using the image of one television camera 6. This can be done based on signals (judgment of numerical changes in 2-byte data).Therefore, it is necessary to install 10 or more photosensors in one automatic ticket gate to detect the passage of passersby, unlike conventional automatic ticket gates. At the same time, the TV camera can be used as a security surveillance camera, which contributes to lower facility prices, and allows simultaneous control of multiple automatic ticket gates with a simple configuration.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of an automated ticket gate equipped with an automatic ticket gate (gate device) according to an embodiment of the present invention, Fig. 2 is a block diagram of the control section of the automated ticket gate, and Fig. 3 is a schematic diagram of the above-mentioned implementation. FIG. 4 is a perspective view of the right side device of an automatic ticket gate, which is an example, and FIG.
Figure 6 shows the image position of the stripes divided into six (
A), (B), and (C) are flowcharts showing the operation of the control section of the automated ticket gate. 1.1', 1'-automatic ticket gate, 2.2', 2"-stripe, 6-TV camera, 9-A/D converter.

Claims (3)

[Claims] (1) It comprises a stripe formed on a passage, and a stripe detection device that divides this stripe into a plurality of fragments and sets a detection position for each fragment, and for each detection position of the stripe detection device. 1. A gate device comprising a traffic detection means for detecting the presence of a passerby at a detection position where a stripe fragment is not detected by determining whether or not a stripe is detected. (2) The gate device according to claim 1, wherein the stripe detection device includes a television camera that photographs the stripes. (3) The traffic detection means includes means for allocating one bit for each previous detection position and setting 0 to the bit corresponding to the detection position where the stripe fragment was detected and 1 to the bit corresponding to the detection position where the stripe fragment was not detected. A gate device according to claim 1 or 2 including: