JP5382897B2 - Detection device - Google Patents

Description

  The present invention relates to a detection apparatus using a transmissive sensor or a reflective sensor made of a photoelectric element.

  A detection device using a transmissive sensor or a reflective sensor made of a photoelectric element is widely adopted as a device for detecting an object in various industrial fields.

  For example, a transmission type sensor as a human detector in an automatic ticket gate has a predetermined interval along the passing direction of the ticket gate passage on one side surface of the case of the automatic ticket gate installed with the ticket gate passage. A plurality of light emitting elements are arranged, and light receiving elements are provided on the other side of the housing at positions corresponding to the plurality of light emitting elements. Therefore, the user (passenger) in the ticket gate passage can be detected by the transmission type sensor.

  In addition, the reflection type sensor as a human detector in the automatic ticket gate is used by adults who pass upward through the ticket gate passage in the sensor box provided on the top surface of the automatic ticket gate, that is, through the ticket gate passage. A light emitting element for irradiating a light beam with a predetermined interval in the passing direction of the ticket gate and a light receiving element for receiving a light beam (reflected light) reflected by the user is provided. It is configured. Therefore, when a user is detected by the reflective sensor, the user is determined to be an adult user. In addition, when a user is not detected by this reflection type sensor but a user is detected only by the transmission type sensor, the user is determined to be a child (child) user.

  By the way, if the light emitting surface or the light receiving surface is contaminated by dust or the like, the detection device including the above-described conventional photoelectric element may not be able to detect an object or may erroneously detect that there is an object. Therefore, in order to prevent such an inconvenience, a maintenance inspection such as cleaning the light projecting surface and the light receiving surface is periodically performed on the detection device including the photoelectric element.

Problems to be solved by the invention

  However, the conventional sensor detection device composed of photoelectric elements is regularly maintained and inspected. However, not only is it difficult to determine the maintenance inspection period, but the maintenance inspection period is too short. Has the disadvantage of becoming expensive.

  Therefore, the present invention has been made to solve the above-described drawbacks, and an object of the present invention is to provide a detection device that can accurately notify the maintenance timing.

Means for solving the problem

[Means for Solving the Problems]
In order to achieve the above object, a detection apparatus according to the present invention of claim 1
In a detection apparatus including a plurality of sensors composed of photoelectric elements having a light projecting surface or a light receiving surface,
Monitoring means for repeatedly monitoring whether or not detection has been made by all the sensors every time the detection of the user is started for each of the plurality of sensors;
In each of the repeated monitoring results output by the monitoring means, when any one of the plurality of sensors can no longer detect the object to be detected, the state in which all the sensors have been detected has not occurred . Output means for outputting a notification signal that prompts maintenance inspection of the light emitting surface or the light receiving surface of the sensor on condition that any one of the plurality of sensors cannot detect the detected object continuously a predetermined number of times. When,
It is characterized by having.
According to a second aspect of the present invention, there is provided a detection device according to the above-described configuration, wherein the sensor formed of the photoelectric element is a transmissive sensor or a reflective sensor.
According to a third aspect of the present invention, there is provided a detection device according to the above-described configuration, wherein the sensor comprising the photoelectric element is provided in an automatic ticket gate.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows one of a pair of cases constituting a main body (hereinafter referred to as “main body”) G of an automatic ticket gate when the detection device according to the embodiment is applied to the automatic ticket gate. It is a perspective view of the body G1. Note that the other casing (not shown) is provided so as to face the one casing G1 with the ticket gate P interposed therebetween.

  In FIG. 1, reference numeral 1 denotes an entrance for tickets, which is provided on the entry side in the passing direction of the ticket gate passage P of the housing G1, and 2 is provided on the advance side of the ticket gate passage P on the upper surface of the housing G1. 3 is a display screen for guiding predetermined contents by characters to the user provided on the advance side of the ticket gate passage P in the vicinity of the exit 2 and 4 is for the user On the other hand, it is a speaker for guiding predetermined contents by voice.

  A card handler (not shown) is provided in the housing G1 between the inlet 1 and the outlet 2. The card handler is configured so that the tickets inserted from the insertion slot 1 can be transported to the exit 2 or a collection box provided in the casing G1 (not shown). During the transportation, it is necessary to read the data recorded in the tickets entered into the slot 1 and write new data, punch and print as necessary, and return it to the user. A certain ticket is discharged to the outlet 2, and the ticket that needs to be collected in the housing G1 can be collected in the collection box.

  In FIG. 1, B is a sensor box, which is provided on the upper surface of the housing G1, on the side opposite to the ticket gate passage P, and along the ticket gate passage P. In the sensor box B, a human detector composed of the reflective sensors S, S... Is built in so that an adult user in the ticket gate passage P can be detected. That is, the reflection type sensors S, S... Receive a light emitting element that irradiates a light beam toward the ticket gate P and a light beam (reflected light) reflected by the irradiated light beam hitting an object (user). It is comprised by the element.

  In FIG. 1, S ′, S ′,... Are transmissive sensors made of photoelectric elements, which are provided at a predetermined interval on the side of the ticket gate P between a pair of housings, and are used in the ticket gate. It is comprised so that a person's position can be detected. That is, the transmission sensors S ′, S ′,... Have a light emitting element on the side surface of one housing and a light receiving element on the side surface of the other housing. If the transmission type sensors S ′, S ′,... Are detected and the reflection type sensors S, S,... Are not detected, the user is determined to be a child user.

  In FIG. 1, D1 and D11 are doors that open and close the ticket gate passage P, and are configured to be driven by a controller C that comprehensively controls the housing G1. The other housing (not shown) is provided with a door at a position corresponding to the doors D1 and D11 of the housing G1.

  As shown in FIG. 2, the controller C includes a central processing unit (CPU) 11 that performs a predetermined entrance / exit calculation process using the system program and working data stored in the memory 10. The CPU 11 includes a card handler 12, a door driver 13 for driving and controlling the doors D1 and D11, and human detection devices (S, S..., S ′, S ′...) Via an I / O unit (not shown). A human detector unit 14 for processing the above-mentioned signal and a communication control unit 15 for connecting to a monitoring panel (not shown) installed at a staff counter are connected. Note that a device such as a display driver that drives and controls the display screen 3 is also connected to the CPU 11, but is omitted here.

  The above-mentioned automatic ticket gate is a throw-in type in which the tickets are put into the housing G1 and processed, but the tickets are non-contact tickets made up of IC cards having a wireless communication function. When processing a ticket, the housing G1 is provided with a reader / writer equipped with an antenna for exchanging data with the non-contact ticket.

  The control operation will be described below using the flowchart of FIG. Now, it is assumed that the main body G is operated and the detection of the user in the ticket gate passage P is started (Yes in Step 100. Hereinafter, the step is referred to as “S”).

  When a user passing through the ticket gate P is detected by all the reflection sensors S, S... And the transmission sensors S ′, S ′... (Yes in S102), the human detector is operating normally. Determined. The detected user is determined to be an adult user.

  By the way, the user passing through the ticket gate P is detected by all the transmission sensors S ′, S ′... And the reflection sensors S, S except for the reflection sensor S at the center of the reflection sensors S, S. .. (S102 negative), and if there is a non-detection in which the center reflective sensor S cannot detect humans a predetermined number of times (for example, 5 times) (S104 positive, S106 positive), the sensor. It is determined that the maintenance inspection time has arrived, and that fact is output to the monitoring panel via the communication control unit 15 (S108). Even in the above case, since the user is detected by the remaining reflective sensors S, S..., The user is determined to be an adult user. Moreover, it can also be set as other apparatuses, such as a station control apparatus, in addition to a monitoring board as a notification destination, and you may make it light the lamp provided in the main body G further.

  As described above, if a signal that prompts maintenance inspection is output when the non-detection has continued for a predetermined number of times, the maintenance inspection signal is output when one non-detection suddenly occurs for some reason. Can be prevented.

  In the above example, the non-detection sensor is an example of the reflection type sensor S provided in the center, but the same applies to other sensors.

  Furthermore, although the above-mentioned example showed the example which applied the detection apparatus to the human detector of an automatic ticket gate, it is applicable if it is a detection apparatus provided with the sensor which consists of a some photoelectric element.

Effect of the invention

The detection device according to the present invention includes a monitoring unit that monitors the detection states of a plurality of sensors, and when any one of the plurality of sensors cannot detect a detection object, the sensor maintenance inspection Therefore, it is possible to notify the time for maintenance and inspection of the sensor in a timely manner.
In addition, if the output of a notification signal that prompts maintenance and inspection of the sensor is performed when any one of the plurality of sensors is unable to detect the detected object a predetermined number of times, a sudden cause It is possible to prevent notification due to non-detection by.
And when the sensor which consists of a photoelectric element is used as the transmission type sensor or the reflection type sensor, the maintenance inspection time of the transmission type sensor or the reflection type sensor can be notified effectively.
Furthermore, when a sensor comprising a photoelectric element is provided in the automatic ticket checker, it is possible to effectively notify the maintenance check timing of the human detector of the automatic ticket checker.

  It is a perspective view of one case of a pair of cases which constitutes the main part when the detection device concerning one embodiment of the present invention is applied to an automatic ticket gate.   It is a block diagram of a controller.   It is a flowchart for demonstrating control operation.

G Automatic ticket gate body (main body)
G1 housing D1, D11 door P ticket gate S, S ... reflective sensor S ', S' ... transmissive sensor 1 inlet 2 outlet 4 speaker

Claims (3)

In a detection apparatus including a plurality of sensors composed of photoelectric elements having a light projecting surface or a light receiving surface,
Monitoring means for repeatedly monitoring whether or not detection has been made by all the sensors every time detection of a user is started for each of the plurality of sensors ;
In each of the repeated monitoring results output by the monitoring means, the detection object cannot be detected by any one of the plurality of sensors, so that the detection is not performed by all the sensors. When any one of the plurality of sensors is continuously inspected for a predetermined number of times, the inspection or inspection of the light projecting surface or the light receiving surface of the sensor is not performed. Output means for outputting a notification signal prompting
A detection apparatus comprising:
The detection device according to claim 1, wherein the sensor made of the photoelectric element is a transmissive sensor or a reflective sensor.
  The detection device according to claim 1, wherein the sensor including the photoelectric element is provided in an automatic ticket gate.

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