Odor detection device, odor analysis system, and odor analysis method

Abstract

An odor detection device includes an odor sensor for measuring an ambient odor, a fan that exhausts air around the odor sensor, and a substrate for controlling the fan and the odor sensor. Electric power supplied to the odor sensor, the fan, and the substrate is supplied from outside of the odor detection device, the substrate includes a connection unit capable of transmitting and receiving data to and from an external device that is a device separate from the odor detection device, and the fan is installed downstream of an airflow generated by the fan itself with respect to the odor sensor.

What is claimed is: 
     
         1 . An odor detection device comprising:
 an odor sensor for measuring an ambient odor;   a fan that exhausts air around the odor sensor; and   a control device for controlling the fan and the odor sensor, wherein   electric power supplied to the odor sensor, the fan, and the control device is supplied from outside of the odor detection device,   the control device includes a communication device capable of transmitting and receiving data to and from an external device that is a device separate from the odor detection device, and   the fan is installed downstream of an airflow generated by the fan itself with respect to the odor sensor.   
     
     
         2 . The odor detection device according to  claim 1 , wherein
 the odor sensor is installed in a duct having a tubular shape.   
     
     
         3 . The odor detection device according to  claim 1 , wherein
 the control device includes an air flow rate control unit that changes an air flow rate of the fan according to an output of the odor sensor.   
     
     
         4 . The odor detection device according to  claim 3 , wherein
 the air flow rate control unit makes an air flow rate of the fan larger as an output of the odor sensor is larger.   
     
     
         5 . The odor detection device according to  claim 1 , wherein
 transmission and reception of the data between the odor detection device and the external device are performed via wired connection.   
     
     
         6 . An odor analysis system comprising:
 an odor detection device including   an odor sensor for measuring an ambient odor,   a fan that exhausts air around the odor sensor, and   a control device for controlling the fan and the odor sensor; and   a first external device capable of transmitting and receiving data to and from the odor detection device, wherein   electric power supplied to the odor sensor, the fan, and the control device is supplied from outside of the odor detection device,   the control device includes a communication device capable of transmitting and receiving data to and from the first external device, and   the fan is installed downstream of an airflow generated by the fan itself with respect to the odor sensor, the odor analysis system further comprising:   a determination processing unit that determines whether or not a predetermined odor source exists around the odor detection device based on an output value of the odor sensor.   
     
     
         7 . The odor analysis system according to  claim 6 , wherein
 the determination processing unit performs the determination based on an output value of the odor sensor measured in an atmosphere in which the odor source does not exist.   
     
     
         8 . The odor analysis system according to  claim 6 , wherein
 the determination processing unit performs the determination based on a learning result of an output value of the odor sensor measured in an atmosphere in which the odor source does not exist and an output value of the odor sensor measured in an atmosphere in which the odor source as a source of an odor exists.   
     
     
         9 . The odor analysis system according to  claim 6 , wherein
 the first external device includes a deodorizing operation control unit that operates at least one of a deodorizing device that performs deodorizing processing and a fragrance spraying device that sprays a fragrance in a case where the determination processing unit determines that a predetermined one of the odor source exists around the odor detection device.   
     
     
         10 . The odor analysis system according to  claim 6 , wherein
 the first external device includes a display unit that displays a determination result obtained by the determination processing unit.   
     
     
         11 . The odor analysis system according to  claim 6 , further comprising:
 a second external device that can communicate with the first external device, the second external device being a device separate from the odor detection device and the first external device.   
     
     
         12 . The odor analysis system according to  claim 6 , wherein
 the first external device is a mobile terminal.   
     
     
         13 . An odor analysis method for an odor analysis system, the system including:
 an odor detection device including   an odor sensor for measuring an ambient odor,   a fan that exhausts air around the odor sensor, and   a control device for controlling the fan and the odor sensor; and   a first external device capable of transmitting and receiving data to and from the odor detection device, the odor analysis system in which   electric power supplied to the odor sensor, the fan, and the control device is supplied from outside of the odor detection device,   the control device includes a communication device capable of transmitting and receiving data to and from the first external device, and   the fan is installed downstream of an airflow generated by the fan itself with respect to the odor sensor, the odor analysis system further including a determination processing unit that determines whether or not a predetermined odor source exists around the odor detection device based on an output value of the odor sensor,   the odor analysis method comprising:   ambient air introducing step of driving the fan to introduce ambient air into the odor detection device so as to expose the odor sensor to the ambient air; and   determining step of determining whether or not the predetermined odor source exists around the odor detection device based on an output value of the odor sensor,   the ambient air introducing step and the determining step being executed by the determination processing unit.   
     
     
         14 . The odor analysis method according to  claim 13 , wherein
 in the determining step, the determination processing unit executes the determination based on a learning result of an output value of the odor sensor measured in an atmosphere in which the odor source does not exist and an output value of the odor sensor measured in an atmosphere in which the odor source as a source of an odor exists.   
     
     
         15 . The odor analysis method according to  claim 13 , further comprising:
 deodorizing operation step of operating at least one of a deodorizing device that performs deodorizing processing and a fragrance spraying device that sprays a fragrance in a case where the determination processing unit determines that the predetermined odor source exists around the odor detection device, the deodorizing operation step being executed by the first external device.