JP2008269504A - Flame sensor installing method and flame detection system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installing method (mounting method) for a flame sensor which can effectively monitor smoking or a fire without giving a restroom user displeasure in a restroom where smoking is prohibited. <P>SOLUTION: A flame sensor 4 having a filter 5 which eliminates infrared rays radiated from a human body and transmits infrared rays inherent to a combustion phenomenon radiated from a fire of a cigarette or a flame of a lighter is provided side by side with a human body detection sensor (washing sensor) 2 in a unit housing the human body detection sensor 2 provided in a washing switch 1 of an automatic toilet washing unit 8, and a detection window 5 for the human body detection sensor is also used as a detection window for a flame sensor. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a method for installing a smoking / flame detection sensor provided in a toilet room and a flame detection system.

  Conventionally, for example, a smoking sensor of Patent Document 1 is known. Such a smoking sensor effectively monitors whether there is a smoker in a toilet room where smoking is prohibited, such as an airplane or a bullet train.

Such a smoking sensor is installed on a ceiling or a wall (FIG. 4). In order to monitor the presence or absence of smoking, a black vinyl chloride film (cover) that blocks ambient light and transmits infrared rays generated by smoking is directed to the detection area as an infrared detector (flame sensor detection window). Installed in a state.
JP 2002-251682 A

  However, in terms of the appearance of the smoking sensor, a toilet user may misunderstand the smoking sensor as, for example, a monitoring camera regardless of the presence or absence of smoking, and may complain to the toilet facility manager or the like. And toilet facility managers had to solve misunderstandings every time they complained, and there was a problem of causing confusion. Also, from the viewpoint of privacy protection in recent years, it has been refrained to provide a smoking sensor with an appearance and installation manner similar to a surveillance camera in a toilet room.

  Therefore, the present invention provides a flame sensor installation method (attachment) capable of effectively monitoring smoking or fire without causing discomfort to the toilet user as described above in a toilet room where smoking is prohibited. Method) and a flame detection system.

  To achieve the above object, a first aspect of the present invention provides a flame detection system for detecting smoking and fire in a toilet room, comprising a human body detection sensor for detecting infrared rays emitted from a human body, and the human body of the human body detection sensor. It is characterized in that a flame sensor that detects infrared rays having a wavelength that is characteristic of combustion phenomena such as smoking and fire is integrally provided in a toilet equipment that performs various controls by detection.

  The invention described in claim 2 is a toilet flame sensor installation method in which a flame sensor that removes infrared rays emitted from a human body and detects infrared rays having a wavelength peculiar to combustion phenomena such as smoking and fire is installed in the toilet room. The toilet flame sensor is one of toilet equipment, and is provided in the vicinity of a human body detection sensor that detects infrared rays emitted from a human body.

  Moreover, invention of Claim 3 is a flame sensor installation method for toilets of Claim 2, The said flame sensor for toilets is provided in the housing | casing which accommodates the said human body detection sensor, It is characterized by the above-mentioned.

  According to a fourth aspect of the present invention, in the method for installing a toilet flame sensor according to the second to third aspects, the flame sensor detection window is integrated with the human body detection sensor detection window. And

  According to the present invention, in the toilet room where smoking is prohibited, by placing the toilet flame detection sensor together with the human body detection sensor provided as a toilet equipment device, without giving the toilet user discomfort, It becomes possible to effectively monitor smoking or fire.

  In particular, a flame sensor is provided in the unit (automatic washing machine) where a human body detection sensor (cleaning sensor) provided as a toilet cleaning switch is housed, and the detection window for the human body detection sensor is also used as the detection window for the flame sensor. In this case, the cost is significantly reduced as compared with the case where the human body detection sensor and the flame sensor are separately installed, and the installation work such as mounting and wiring becomes much easier.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
(Overall configuration)
1 to 3 are installation examples of flame sensors installed for the toilet of the present invention. FIG. 1 is an external view of a urinal provided with an automatic washer 8 by detecting the presence or absence of a human body by a toilet washing switch 1. FIG. 2 is an enlarged view of the automatic washer 8 (two examples A and B).
FIG. 3 shows an operation panel 9 for operating various functions of the toilet equipment provided on the wall near the toilet of the private toilet.

(Example of installation)
The automatic cleaning device 8 is provided with a cleaning sensor 1, and the cleaning switch 1 (cleaning switch unit 1) includes a human body detection sensor 2 for detecting infrared rays emitted from the human body and a fixing member for mounting and fixing the human body detection sensor. And a circuit board or the like (not shown), and the front surface of the cleaning switch 1 is covered with a black acrylic panel 3a (detection window 3a for human body detection sensor) as shown in FIG. When the control circuit portion of the circuit board of the cleaning switch 1 senses infrared rays emitted from the human body by the human body detection sensor 2, it controls driving of an electromagnetic valve or the like provided in the automatic cleaner 8 (not shown).
The human body detection sensor 2 is a pyroelectric element. Moreover, it is good also as a structure which fixes the filter for infrared rays on the surface of a pyroelectric element according to the infrared transmission performance of the detection window 3a for human body detection sensors.

Further, as shown in FIG. 2A, a flame sensor 4 that removes infrared rays emitted from the human body and detects infrared rays peculiar to a combustion phenomenon emitted from a cigarette fire or a lighter flame is provided in the cleaning switch 1. Are arranged side by side with the human body detection sensor 2 on the circuit board.
Note that a circuit board on which the flame sensor 4 is mounted (that is, a circuit board on which the human body detection sensor 1 is mounted) includes a detection circuit unit that detects infrared rays peculiar to flame by the flame sensor 4 and amplifies and converts them into an electrical signal, A flame control circuit (CPU) that determines the presence or absence of smoking, etc., a ROM that stores programs necessary for flame detection determination, a RAM that temporarily stores RAM, and other known circuits necessary for flame detection are installed. Yes.

The flame sensor 4 is a pyroelectric element that detects infrared rays. The pyroelectric element surface (detection surface) transmits an infrared filter that transmits infrared rays and infrared rays having a wavelength peculiar to a combustion phenomenon, and is emitted from a human body. A quartz filter for cutting infrared rays is provided (flame detection filter 5).
The infrared filter of the flame detection filter 5 has a property of transmitting infrared rays over a wide wavelength range, and particularly 3 to 5 μm, which is called a mid-infrared range, transmits nearly 100%. On the other hand, the quartz filter of the flame detection filter 5 transmits a lot of light in the vicinity of 3.5 μm and cuts light having a longer wavelength than that of 5.5 μm.

  By the way, the characteristics of tobacco flame and the like will be described. A large amount of infrared rays in the vicinity of 3.5 μm are emitted from a high-temperature heat source such as tobacco fire, and carbon dioxide gas generated during oxidation from a flame like a lighter. It is said that the infrared radiation having a characteristic spectrum of 4.3 μm is strongly generated by the resonance radiation.

  Therefore, the flame sensor 4 of the present invention is configured such that infrared rays emitted from the cigarette fire and lighter flame are selectively incident on the pyroelectric elements of the flame sensor 4. Note that the infrared rays emitted by a human being are about 10 μm, and are not detected by the flame sensor 4 if only a human is approaching. That is, the flame sensor 4 is provided with the flame detection filter 5 that transmits infrared rays having a wavelength peculiar to the combustion phenomenon but cuts infrared rays emitted by the human body, and therefore does not react to the human body by mistake.

Therefore, in a non-smoking toilet room, when the smoking is not normally performed, the toilet is automatically cleaned by the human body detection by the human body detection sensor 2, and when the smoking is performed, the flame sensor 4 does not smoke. To detect.
In addition, when smoking is detected, it is necessary to warn the toilet user in the toilet equipment. good.
In this case, for example, a voice synthesis circuit is further provided on the above-described circuit board, and the flame control circuit unit (CPU) sends a flame detection signal from the flame sensor 4 while following the control program and control data (such as the above-mentioned ROM). When the message is received, a predetermined message voice alarm is output from the speaker of the toilet equipment via the voice synthesis circuit.

  In addition, if a fire is detected, an alarm must be given to the toilet facility manager and the building where the fire toilet is installed, or to the means of transportation (airplane or Shinkansen). It is good also as a structure which outputs a report to a fire alarm equipment (for example, fire receiver). In this case, it is necessary to mount a known fire detection method using a flame sensor and its circuit configuration on a circuit board.

  In addition, this invention is not limited to the said embodiment, It can change suitably. For example, as shown in FIG. 2B, the circuit board on which the flame lance 4 and the flame sensor 4 are mounted and the respective circuit units are housed in a housing separate from the human body detection sensor 1 in the automatic cleaner 8. It may be provided as a unit and provided together with the unit of the cleaning switch 1. In this case, the flame sensor, the circuit board, and the housing serve as the fire sensor 2. As for the detection window, as in the embodiment of FIG. 2B, the human body detection sensor detection window 3a may be used also as a flame sensor detection window, or may be provided as a separate detection window. good.

In addition, the flame sensor 4 may be provided integrally with a hand-holding sensor using a reflective infrared sensor (for example, in the casing), or the flame sensor 4 may be provided as a toilet seat opening / closing switch using a human body detection sensor (inside the casing). ).
Moreover, as shown in FIG. 3, the flame sensor 4 may be integrally provided in the washing switch 1 provided in the toilet equipment operation panel 9 provided near the toilet. Alternatively, the detection windows may be provided separately. In this case, it is necessary to devise and incorporate the structure so that the flame sensor 4 and the circuit board or the like are adapted to the thickness of the operation panel as chip parts.

It is a figure which shows the example of flame sensor installation which concerns on this invention. 1 is a diagram showing an example (A) and an example (B) in which the main part is enlarged. It is a figure which shows the flame sensor installation example which concerns on other this invention. It is a figure which shows the example of installation of the conventional smoking sensor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cleaning switch 2 Human body detection sensor 3 Detection window 3a Detection window for human body detection sensor 3b Detection window for flame sensor 4 Flame sensor 5 Filter (infrared filter and quartz filter)
6 Cleaning switch 1 and flame sensor 4 Unit partition 8 Automatic cleaning device 9 Toilet equipment operation panel 10 Smoking sensor (conventional installation state)

Claims (4)

In the flame detection system that detects smoking and fire in the toilet room,
A flame sensor for detecting infrared rays having a wavelength specific to a combustion phenomenon such as smoking and fire in a toilet equipment that includes a human body detection sensor that detects infrared rays emitted from a human body and performs various controls by human body detection of the human body detection sensor A flame detection system characterized in that it is integrally provided. In the method of installing a flame sensor for toilets, which removes infrared rays emitted from the human body and installs a flame sensor in the toilet room that detects infrared rays with wavelengths characteristic of combustion phenomena such as smoking and fire,
A method for installing a flame sensor for toilets, wherein the flame sensor for toilets is one of toilet equipment devices and is provided in the vicinity of a human body detection sensor that detects infrared rays emitted from a human body. In the installation method of the flame sensor for toilets of Claim 2,
An installation method for a toilet flame sensor, wherein the toilet flame sensor is provided in a housing that houses the human body detection sensor. In the installation method of the flame sensor for toilets of Claim 2 thru | or 3,
An installation method of a flame sensor for toilets, wherein the flame sensor detection window is integrated with the human body detection sensor detection window.