Information provision system for range hood handling

Abstract

To provide an information providing system which improves convenience in handling a range hood by a user and reduces burden of work of the user.SOLUTION: A range hood 100 has a two-dimensional bar code generating unit 22c, a two-dimensional barcode displaying unit 18, a storage unit 22d for storing an URL information for use in access to a server 200 and an individual identification information of the range hood 100, and a control unit 22 for controlling operations of the two-dimensional barcode generating unit 22c and the two-dimensional barcode displaying unit 18. The server 200 has a reception unit 152 for receiving the individual identification information of the range hood 100, a storage unit 154 for storing a range hood registration information, a transmission information generating unit 156 for generating information to be transmitted to a two-dimensional barcode reader apparatus 150 based on the individual identification information of the range hood 100 and the range hood registration information, and an information transmitting unit 158 for transmitting the information generated by the transmission information generating unit 156.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an information providing system relating to the handling of a range hood. [Background technology]

[0002] BACKGROUND ART Range hoods equipped with a notification means for notifying a user of an abnormal state of the appliance or the time for maintenance are known (see, for example, Patent Document 1).

[0003] The range hood described in Patent Document 1 comprises a filter, a control unit that determines the degree of dirtiness of the filter and notifies the user that the filter needs to be cleaned, and a notification means that performs a notification operation requesting that the filter be cleaned based on a signal from the control unit. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-138704 Summary of the Invention [Problem to be solved by the invention]

[0005] In such conventional range hoods, the notification means were limited to simple sounds or simplified text messages that illuminated or flashed. Therefore, to find out the specific operations corresponding to the information notified by the notification means, the user had to refer to the instruction manual or contact the manufacturer's inquiry desk, which resulted in a heavy workload for the user.

[0006] SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems of the prior art, and aims to provide a range hood that improves the convenience of handling the range hood for users and reduces the workload of the users. [Means for solving the problem]

[0007] To achieve this object, the information provision system of the present invention includes a range hood and a server that provides information related to range hood handling. The range hood includes a two-dimensional barcode generation unit for generating a two-dimensional barcode, a two-dimensional barcode display unit for displaying the two-dimensional barcode generated by the two-dimensional barcode generation unit, a memory unit that stores URL information for accessing the server via a telecommunications line and individual identification information for the range hood, and a control unit that controls the operation of the two-dimensional barcode generation unit and the two-dimensional barcode display unit. The control unit reads the URL information and the individual identification information for the range hood from the memory unit and uses the two-dimensional barcode generation unit to generate a two-dimensional barcode that includes the URL information and the individual identification information for the range hood. The server includes a receiving unit that receives the individual identification information of the range hood transmitted from the two-dimensional barcode reader via URL information, a memory unit that stores the range hood registration information, a transmission information generating unit that generates information to be transmitted to the two-dimensional barcode reader based on the individual identification information of the range hood received by the receiving unit and the range hood registration information stored in the memory unit, and an information transmitting unit that transmits the information generated by the transmission information generating unit to the two-dimensional barcode reader. [Effects of the Invention]

[0008] According to the present invention, it is possible to improve the convenience of the user in handling the range hood and reduce the workload of the user. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a functional block diagram showing an outline of an information providing system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a partial front view showing the configuration of the range hood of FIG. [Figure 3] FIG. 3 is a functional block diagram schematically showing a control unit of the range hood of FIG. [Figure 4]FIG. 4 is a flowchart showing the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit of the range hood of FIG. [Figure 5] FIG. 5 is a functional block diagram illustrating the server of FIG. [Figure 6] FIG. 6 is a flowchart showing the operation of transmitting and receiving information in the server of FIG. [Figure 7] FIG. 7 is a functional block diagram schematically showing a control unit of the first modification. [Figure 8] FIG. 8 is a flowchart showing the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit of the range hood of the first modification. [Figure 9] FIG. 9 is a flowchart showing the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit of the range hood of the second modification. [Figure 10] FIG. 10 is a flowchart showing the operation of transmitting and receiving information in the server of the second modification. [Figure 11] FIG. 11 is a partial front view showing the configuration of the range hood of the third modification. [Figure 12] FIG. 12 is a functional block diagram schematically showing a control unit of the third modification. [Figure 13] FIG. 13 is a flowchart showing the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit of the range hood of the third modification. [Figure 14] FIG. 14 is a flowchart showing the operation of transmitting and receiving information in the server of the third modification. [Figure 15] FIG. 15 is a partial front view showing the configuration of a range hood according to the fourth modification. [Figure 16] FIG. 16 is a flowchart showing the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit of the range hood of the fourth modification. [Figure 17] FIG. 17 is a flowchart showing the operation of transmitting and receiving information in the server of the fourth modification. [Figure 18]FIG. 18 is a flowchart showing the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit of the range hood of the fifth modification. [Figure 19] FIG. 19 is a flowchart showing the operation of transmitting and receiving information in the server of the fifth modification. [Figure 20] FIG. 20 is a flowchart showing the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit of the range hood of the sixth modification. [Figure 21] FIG. 21 is a flowchart showing the operation of transmitting and receiving information in the server of the sixth modification. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the embodiments and modifications, identical or equivalent components and members are designated by the same reference numerals, and redundant explanations will be omitted where appropriate. Furthermore, the dimensions of the members in each drawing are enlarged or reduced as appropriate to facilitate understanding. Furthermore, some members that are not important for explaining the embodiments will be omitted from the drawings.

[0011] Furthermore, terms including ordinal numbers such as first and second are used to describe various components, but these terms are used only to distinguish one component from another and do not limit the components.

[0012] The information provision system relating to the handling of range hood 100 is composed of range hood 100 and server 200. First, the flow of information transmission relating to the information provision system will be explained with reference to Fig. 1. Fig. 1 is a functional block diagram that shows an outline of the information provision system.

[0013] First, range hood 100 displays a two-dimensional barcode when certain conditions are met. The certain conditions for displaying the two-dimensional barcode will be described later. The two-dimensional barcode includes URL (Uniform Resource Locator) information that allows the user to access server 200 via telecommunications line 300 (Internet line, telephone line, etc.), and individual identification information for range hood 100 (information about the model of range hood 100, information about a serial number that can identify the manufacturing date, etc.).

[0014] The user uses the two-dimensional barcode reader 150 to read the two-dimensional barcode displayed on the range hood 100 (information transmission A). Information transmission A includes URL information for accessing the server 200 and individual identification information of the range hood 100.

[0015] The two-dimensional barcode reader 150 accesses the server 200 through the telecommunications line 300 based on the URL information included in the information transmission A, and transmits the individual identification information of the range hood 100 (information transmission B).

[0016] Server 200 compares the information contained in information transmission B with information about range hood 100 previously registered in server 200. Server 200 has previously stored range hood registration information, such as information about the user of range hood 100, individual identification information for the range hood 100 being registered, and information about the date of purchase (or the date the user began using range hood 100), through a different user registration method (e.g., registration by postcard or webpage). Server 200 transmits information based on the results of comparing the information contained in information transmission B with the range hood registration information to two-dimensional barcode reader 150 via telecommunications line 300 (information transmission C). Information transmission C includes instruction manual information for range hood 100, information encouraging the user to replace range hood 100, and URL information for accessing a webpage, such as an e-commerce (electronic commerce) site, where range hood 100 (or a different model from range hood 100) and accessories can be purchased.

[0017] The two-dimensional barcode reader 150 displays the information contained in information transmission C received from the server 200 via the telecommunications line 300. The two-dimensional barcode reader 150 may be a smartphone or dedicated terminal device equipped with an imaging means, and may be any device capable of reading the two-dimensional barcode displayed on the range hood 100, transmitting the information to the server 200 (information transmission B), and at least displaying the information received from the server 200 (information transmission C).

[0018] The above is the flow of information transmission related to the information provision system related to the handling of the range hood 100.

[0019] Next, the configurations of the range hood 100 and the server 200 will be described. In addition, the predetermined conditions for displaying a two-dimensional barcode on the range hood 100 will also be described.

[0020] (Range Hood 100) The configuration of range hood 100 of the present invention will be described with reference to Figures 2 and 3. Figure 2 is a partial front view showing the configuration of range hood 100. Figure 3 is a functional block diagram that schematically shows control unit 22 of range hood 100 of Figure 2.

[0021] The range hood 100 is a type of exhaust device that is installed above a cooking appliance (not shown) and exhausts air containing oily smoke and odors generated during cooking from indoors to outdoors. The range hood 100 includes a fan box 10, a hood 12, an exhaust fan 14, an operation unit 16, a two-dimensional barcode display unit 18, a current measurement unit 20, and a control unit 22.

[0022] The fan box 10 is a housing that houses an exhaust fan 14. An airflow (exhaust flow) is generated by the operation of the exhaust fan 14, and air is drawn into the range hood 100. The air drawn into the range hood 100 is blown out from an exhaust port (not shown) provided in the fan box 10. The air blown out from the exhaust port passes through an exhaust duct (not shown) connected to the exhaust port and is blown out to the outdoors. The exhaust duct is a pipe that transports the air blown out from the exhaust port to the outdoors. The exhaust port is connected to the exhaust duct and is therefore connected to the outdoors.

[0023] The hood 12 is a cover for guiding air containing oily smoke and odors generated during cooking to the exhaust fan 14. The hood 12 is formed as a polygonal prism with a square or higher polygonal shape, or as a cylinder. The hood 12 is placed below the fan box 10. The hood 12 has an intake port (not shown). The airflow (exhaust flow) generated by the exhaust fan is sucked into the range hood 100 through the intake port. The configuration and operation of these components are similar to the basic configuration and operation of a typical range hood.

[0024] The exhaust blower 14 generates an exhaust flow. The exhaust blower 14 has an exhaust fan 14a and an exhaust motor 14b. The exhaust fan 14a is a centrifugal impeller such as a sirocco fan. The exhaust motor 14b rotatably supports the exhaust fan 14a. The exhaust motor 14b is an alternating current motor (AC motor) or a direct current motor (DC motor).

[0025] The operation unit 16 is a control panel for selecting the operation mode of the range hood 100. Examples of the operation mode include selecting ON / OFF of the operation of the range hood 100 and selecting the air volume of the exhaust fan 14. The operation unit 16 is electrically connected to the control unit 22 so as to be able to communicate with it.

[0026] The two-dimensional barcode display unit 18 is a display for displaying a two-dimensional barcode. Examples of the two-dimensional barcode display unit 18 include a liquid crystal display and an organic EL display.

[0027] The control unit 22 is electrically connected to the exhaust fan 14, the operation unit 16, and the two-dimensional barcode display unit 18 so as to be able to communicate with each other, and performs overall control of the range hood 100. Each functional block shown in Fig. 2 can be realized in hardware terms by elements or mechanical devices, such as a computer's CPU (Central Processing Unit), and in software terms by a computer program, etc., but the functional blocks shown here are realized by the cooperation of these elements. Therefore, those skilled in the art who have read this specification will understand that these functional blocks can be realized in various ways by combining hardware and software.

[0028] The current measuring unit 20 measures the value of the current flowing through the exhaust motor 14b. The current measuring unit 20 is electrically connected to the control unit 22 so as to be able to communicate with each other.

[0029] In order to reduce the amount of dust and oil contained in the airflow (exhaust flow) generated by the exhaust blower 14 that the control unit 22 comes into contact with, it is preferable to place the control unit 22, for example, enclosed in the hood 12 on the back side of the operating unit 16, in a position where it does not come into contact with the airflow (exhaust flow), but the position is not limited to this and any position where it does not come into contact with the airflow (exhaust flow) will do.

[0030] The control unit 22 includes an exhaust motor control unit 22a, a two-dimensional barcode display control unit 22b, a two-dimensional barcode generation unit 22c, a storage unit 22d, and a processing unit 22e.

[0031] Based on information output from the processing unit 22e, the exhaust motor control unit 22a controls the operation output of the exhaust fan 14. The information output from the processing unit 22e is, for example, information related to the operation output of the exhaust fan 14.

[0032] The two-dimensional barcode display control unit 22b controls the two-dimensional barcode display unit 18 to display the display pattern of the two-dimensional barcode generated by the two-dimensional barcode generation unit 22c.

[0033] Two-dimensional barcode generator 22c generates a two-dimensional barcode pattern including the information output from processor 22e. The information output from processor 22e includes URL information that enables the user to access a web page containing handling information for range hood 100 via telecommunications line 300, and individual identification information for range hood 100 (such as a serial number that can identify the model and manufacturing date).

[0034] The memory unit 22d stores information related to the operating output of the exhaust fan 14 (rotation speed, current value, etc.), URL information for accessing the server 200 via the telecommunications line 300, and individual identification information of the range hood 100 (such as a serial number that can identify the model and manufacturing date).

[0035] Based on various information obtained from the operation unit 16, the storage unit 22d, and the current measurement unit 20, the processing unit 22e outputs the result of processing to any one or a plurality of the exhaust motor control unit 22a, the two-dimensional barcode display control unit 22b, the two-dimensional barcode generation unit 22c, and the storage unit 22d.

[0036] The above is the configuration of the range hood 100.

[0037] Next, an example of the operation of displaying a two-dimensional barcode on the range hood 100 configured as described above will be described. FIG. 4 is a flowchart showing the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit 18 based on the information of the current value A measured by the current measurement unit 20 and the maximum current value Amax stored in the storage unit 22d. The maximum current value Amax is a current value larger than the current value flowing through the exhaust motor 14b during the operation of the normal range hood 100. As an example, it is the current value that flows when a load larger than normal is applied to the rotating shaft of the exhaust motor 14b.

[0038] First, when the user selects "operation ON" from the operation unit 16, in step S1, the control unit 22 receives the signal of the current value A measured by the current measurement unit 20, and determines whether the current value A has reached the maximum current value Amax stored in the storage unit 22d. Note that the current measurement unit 20 always transmits the signal of the current value A to the control unit 22 during the operation of the range hood 100.

[0039] In step S1, if it is determined that the current value A has not reached the maximum current value Amax (A < Amax) (N in step S1), the control unit 22 repeats step S1. If it is determined that the current value A has reached the maximum current value Amax (A ≥ Amax) (Y in step S1), the control unit 22 proceeds to step S2.

[0040] In step S2, control unit 22 reads out the individual identification information of range hood 100 and URL information for accessing server 200 from storage unit 22d, and proceeds to step S3. It is assumed that the individual identification information and URL information are stored in storage unit 22d at the time of product shipment.

[0041] In step S3, the control unit 22 causes the two-dimensional barcode generation unit 22c to generate a two-dimensional barcode A including URL information for accessing the server 200 and individual identification information of the range hood 100, and then proceeds to step S4.

[0042] In step S4, the control unit 22 causes the two-dimensional barcode display control unit 22b to display the pattern of the two-dimensional barcode A on the two-dimensional barcode display unit 18. The two-dimensional barcode display unit 18 has a display area capable of displaying at least a two-dimensional barcode, and may also display additional information (characters, images, etc.) other than the two-dimensional barcode.

[0043] The above is the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit 18 based on the information of the current value A measured by the current measurement unit 20 and the maximum current value Amax stored in the memory unit 22d.

[0044] (Server 200) Next, the configuration of server 200 will be described with reference to Fig. 5. Fig. 5 is a block diagram that schematically shows server 200. Server 200 includes receiving unit 152, storage unit 154, transmission information generation unit 156, information transmission unit 158, and processing unit 160.

[0045] The receiving unit 152 receives the information read by the two-dimensional barcode reader 150 (information transmission A) via the electric communication line 300 (information transmission B).

[0046] Storage unit 154 stores in advance range hood registration information such as information about the user of range hood 100, individual identification information of the range hood 100 to be registered, and the date of purchase (or the date the user started using range hood 100) through a user registration method using another means (for example, postcard registration or registration via a web page using a computer (two-dimensional barcode reader)). It also stores instruction manual information for each model of range hood 100.

[0047] The transmission information generation unit 156 generates information (information transmission C) to be transmitted to the two-dimensional barcode reader 150. The transmission information generation unit 156 generates instruction manual information for the range hood 100, information encouraging the user to replace the range hood 100, and URL information for accessing a web page such as an e-commerce site where the range hood 100 (or a model other than the range hood 100) and accessories can be purchased.

[0048] The information transmitting unit 158 ​​transmits the information generated by the transmission information generating unit 156 to the two-dimensional barcode reader 150 via the electric communication line 300 (information transmission C).

[0049] The processing unit 160 outputs the processing results to either or both of the transmission information generation unit 156 and the information transmission unit 158 ​​based on the individual identification information of the range hood 100 received by the receiving unit 152 and the range hood registration information stored in the memory unit 154.

[0050] The above is the configuration of the server 200.

[0051] An example of the control operation of the server 200 configured in this manner, from receiving information transmission B to transmitting information transmission C, will be described with reference to Fig. 6. Fig. 6 is a control flowchart showing the operation of transmitting and receiving information in the server 200.

[0052] First, when the individual identification information of the range hood 100 is transmitted from the two-dimensional barcode reader 150 to the server 200, in step S5, the server 200 receives the information via the telecommunications line 300 using the receiving unit 152, and proceeds to step S6.

[0053] In step S6, server 200 generates, by transmission information generation unit 156, transmission information to be transmitted to two-dimensional barcode reader 150 based on the individual identification information of range hood 100 and the range hood registration information stored in memory unit 154, and proceeds to step S7. The transmission information includes instruction manual information for range hood 100, information encouraging the purchase of a new range hood 100, and URL information for accessing a web page such as an e-commerce site where range hood 100 (or a model other than range hood 100) and accessories can be purchased.

[0054] In step S7, the server 200 transmits the transmission information generated by the transmission information generation unit 156 as information transmission C from the information transmission unit 158 ​​to the two-dimensional barcode reader 150 via the electric communication line 300.

[0055] The above is a control flowchart showing the operation of transmitting and receiving information in server 200.

[0056] (Effect of the information provision system regarding the handling of the range hood 100) The features of the information providing system relating to the handling of the range hood 100 will be described.

[0057] First, generally speaking, to ensure smooth rotation of the rotating shaft of the exhaust motor 14b, lubricating oil (grease) is applied (or impregnated) to the parts that come into mechanical contact with the rotating shaft. This lubricating oil gradually leaves the exhaust motor 14b due to evaporation or loss of viscosity caused by the heat generated by the operation of the exhaust motor 14b. When the amount of lubricating oil contained in the exhaust motor 14b decreases, the frictional force at the parts that come into mechanical contact with the rotating shaft increases, and a larger-than-normal load (binding force) acts on the rotating shaft (also known as motor binding). The probability of motor binding increases depending on the length of time the motor is operated. When the motor is locked, a larger-than-normal current flows through the exhaust motor 14b.

[0058] Therefore, by setting the current value in a state where the motor is determined to be locked as the maximum current value Amax, the control unit 22 can determine that the exhaust motor 14b is in a locked state by comparing it with the maximum current value Amax, and displays a two-dimensional barcode A on the two-dimensional barcode display unit 18.

[0059] The user can use the two-dimensional barcode reader 150 to access the server 200 using the two-dimensional barcode A and obtain information related to handling of the range hood 100. The information obtained from the server 200 includes information encouraging the user to replace the range hood 100 and URL information for accessing a web page, such as an e-commerce site, where the user can purchase the range hood 100 (or a different model from the range hood 100) and accessories. The information encouraging the user to replace the range hood 100 is information informing the user that the range hood 100 in use has reached the end of its useful life. This allows the user to easily understand that it is time to replace the range hood 100.

[0060] More specifically, server 200 can calculate the time (number of years) that has elapsed since the start of use (or purchase date) of range hood 100, based on the range hood registration information stored in memory unit 154 and the individual identification information of range hood 100 received via information transmission B. Therefore, it is possible to provide the user with specific information on the useful life, which is expected to further encourage the user to replace range hood 100.

[0061] Furthermore, server 200 generates URL information for accessing a web page, such as an e-commerce site, where range hood 100 (or a different model from range hood 100) can be purchased, based on the individual identification information of range hood 100 received via information transmission B. For example, the individual identification information of range hood 100 received via information transmission B includes information such as the model and product number, and if information on the currently used range hood 100 and its successor model are linked and stored in storage unit 154, it is possible to generate URL information for accessing an e-commerce site where information on the successor model can be purchased. This can be expected to reduce the amount of work required when a user replaces their currently used range hood 100, such as by referring to a catalog for information on the replacement product or contacting a service center.

[0062] Therefore, the convenience of handling the range hood 100 can be improved, and the workload of the user can be reduced.

[0063] The range hood 100 may also include a notification means for notifying the user that the two-dimensional barcode has been displayed on the two-dimensional barcode display unit 18. Examples of the notification means include means that act on the user's vision, such as lighting or flashing lights, and means that act on the user's hearing, such as audio guidance through a speaker.

[0064] In the embodiment of the present invention, the operation unit 16 and the two-dimensional barcode display unit 18 are provided separately, but this is not limiting. For example, the two-dimensional barcode display unit 18 may be configured as a part of the operation unit 16.

[0065] [Variation 1] Modification 1 will be described below with reference to Figures 7 and 8. Figure 7 is a functional block diagram that schematically shows control unit 22 of Modification 1. Figure 8 is a flowchart showing the operation of displaying a two-dimensional barcode on two-dimensional barcode display unit 18 of range hood 100 of Modification 1.

[0066] In the drawings and explanation of Modification 1, the same or equivalent components and members as those in the embodiment of the present invention are denoted by the same reference numerals. Explanations that overlap with the embodiment will be omitted as appropriate, and the explanation will focus on the configurations that differ from the embodiment.

[0067] The first modification differs from the embodiment in that the control unit 22 includes a clock unit 22f, but is the same in other respects.

[0068] The timer 22f measures the operating time of the range hood 100.

[0069] Based on various information obtained from the operation unit 16, the memory unit 22d, and the timing unit 22f, the processing unit 22e outputs the processing results to one or more of the exhaust motor control unit 22a, the two-dimensional barcode display control unit 22b, and the two-dimensional barcode generation unit 22c.

[0070] An example of the operation of displaying a two-dimensional barcode on the range hood 100 in the first modification will be described below.

[0071] First, when the user selects operation ON from the operating unit 16, in step S101, the control unit 22 starts accumulating the accumulated value of the operating time of the range hood 100 using the timing unit 22f as a first accumulated operating time t1, and proceeds to step 102.

[0072] In step S102, the control unit 22 determines whether the first accumulated operation time t1 has reached a first predetermined time T1 stored in the memory unit 22d. The first predetermined time T1 is the time (e.g., 30,000 hours) after which it is recommended to replace the range hood 100.

[0073] In step S102, when it is determined that the first integrated operation time t1 has not reached the first predetermined time T1 (t1 < T1) (N in step S22), the control unit 22 repeats step S102. When repeating step S102, the control unit 22 continues to integrate the operation time of the range hood 100 using the timer unit 22f. Note that the information on the first integrated operation time t1 is sequentially stored in the storage unit 22d.

[0074] In step S102, when it is determined that the first integrated operation time t1 has reached the first predetermined time T1 (t1 ≥ T1) (Y in step S102), the control unit 22 proceeds to step S103.

[0075] In step S103, the control unit 22 reads out the URL information for accessing the server 200 and the individual identification information of the range hood 100 from the storage unit 22d, and proceeds to step S104.

[0076] In step S104, the control unit 22 generates a two-dimensional barcode A including the information read out from the storage unit 22d using the two-dimensional barcode generation unit 22c, and proceeds to step S105.

[0077] In step S105, the control unit 22 displays the pattern of the two-dimensional barcode A on the two-dimensional barcode display unit 18 using the two-dimensional barcode display control unit 22b.

[0078] The above is the operation of displaying the two-dimensional barcode on the range hood 100 in Modified Example 1.

[0079] Since the operation of information transmission and reception in the server 200 of Modified Example 1 is the same as that in the embodiment, the drawings and descriptions thereof are omitted.

[0080] The effects obtained in Modified Example 1 are the same as those in the embodiment, and the description thereof is omitted.

[0081] [Modified Example 2] In Modified Example 2, the server 200 provides the user with information regarding the cleaning method of the range hood 100 (handling instruction information) among the information related to the handling of the range hood 100.

[0082] Hereinafter, Modified Example 2 will be described with reference to FIGS. 9 and 10. FIG. 9 is a flowchart showing the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit 18 of the range hood 100 in Modified Example 2. FIG. 10 is a flowchart showing the operation of transmitting and receiving information in the server in Modified Example 2.

[0083] In Modified Example 2, the configurations of the range hood 100 and the server 200 are the same as those in the embodiment and Modified Example 1, and thus the description thereof is omitted.

[0084] First, the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit 18 of the range hood 100 in Modified Example 2 will be described.

[0085] First, when the user selects "Operation ON" from the operation unit 16, in step S201, the control unit 22 starts integrating the integrated value of the operation time of the range hood 100 as the second integrated operation time t2 and the third integrated operation time t3 using the timer unit 22f, and proceeds to step 202. ?

[0086] In step S202, the control unit 22 determines whether the second integrated operation time t2 has reached the second predetermined time T2 stored in the storage unit 22d. The second predetermined time T2 is the time when cleaning of the hood 12 is recommended (for example, 350 hours).

[0087] In step S202, when it is determined that the second integrated operation time t2 has reached the second predetermined time T2 (t2≧T2) (Y in step S12), the control unit 22 proceeds to step S203.

[0088] In step S202, when it is determined that the second integrated operation time t2 has not reached the second predetermined time T2 (t2<T2) (N in step S12), the control unit 22 proceeds to step S206.

[0089] In step S203, the control unit 22 reads out URL information for accessing the server 200 and code information A based on the second predetermined time T2 from the storage unit 22d, and proceeds to step S204. The code information A is a symbol that was a system for reading out the cleaning method (handling instruction information) of the hood 12 from the server 200.

[0090] In step S204, the control unit 22 generates a two-dimensional barcode B including the information read out from the storage unit 22d by the two-dimensional barcode generation unit 22c, and proceeds to step S205.

[0091] In step S205, the control unit 22 displays the pattern of the two-dimensional barcode B on the two-dimensional barcode display unit 18 by the two-dimensional barcode display control unit 22b.

[0092] In step S206, the control unit 22 determines whether or not the third integrated operation time t3 has reached the third predetermined time T3 stored in the storage unit 22d. The third predetermined time T3 is the time when cleaning of the exhaust blower 14 is recommended (for example, 250 hours).

[0093] In step S206, when it is determined that the third integrated operation time t3 has reached the third predetermined time T3 (t3≧T3) (Y in step S36), the control unit 22 proceeds to step S207.

[0094] In step S206, when it is determined that the third integrated operation time t3 has not reached the third predetermined time T3 (t3<T3) (N in step S16), the control unit 22 returns to step S32. Note that the information on the second integrated operation time t2 and the third integrated operation time t3 is sequentially stored in the storage unit 22d.

[0095] In step S207, control unit 22 reads URL information for accessing server 200 and code information B based on third predetermined time T3 from storage unit 22d, and proceeds to step S208. Code information B is a systematic symbol for reading out from server 200 how to maintain exhaust fan 14 (instruction manual information).

[0096] In step S3208, the control unit 22 causes the two-dimensional barcode generating unit 22c to generate a two-dimensional barcode C including the information read out from the storage unit 22d, and the process proceeds to step S209.

[0097] In step S209, the control unit 22 causes the two-dimensional barcode display control unit 22b to display the pattern of the two-dimensional barcode C on the two-dimensional barcode display unit 18.

[0098] The above is the operation for displaying a two-dimensional barcode on the two-dimensional barcode display unit 18 of the range hood 100 of the second modified example.

[0099] Next, the operation of transmitting and receiving information in server 200 of the second modification will be described.

[0100] First, when code information A or code information B is transmitted from the two-dimensional barcode reader 150 to the server 200 (information transmission B), in step S210, the server 200 receives the code information A or code information B via the telecommunications line 300 using the receiving unit 152, and proceeds to step S211.

[0101] In step S211, the server 200 reads out information corresponding to the code information A or the code information B from the storage unit 154, and proceeds to step S212. The information corresponding to the code information A is information relating to a maintenance method (instruction information) for the hood 12. The information corresponding to the code information B is information relating to a maintenance method (instruction information) for the exhaust fan 14.

[0102] In step S212, the server 200 generates information to be transmitted to the two-dimensional barcode reader 150 using the transmission information generation unit 156 based on the information read from the storage unit 154, and the process proceeds to step S213.

[0103] In step S213, the server 200 causes the information transmitting unit 158 ​​to transmit the information generated by the transmission information generating unit 156 to the two-dimensional barcode reader 150 via the telecommunications line 300 (information transmission C). The above is the operation of transmitting and receiving information in the server 200 of the second modification.

[0104] Modification 2 can provide the following actions and effects.

[0105] The user reads the two-dimensional barcode B or two-dimensional barcode C displayed on the two-dimensional barcode display unit 18 of the range hood 100 using the two-dimensional barcode reader 150, accesses the server 200 via the telecommunications line 300, and obtains information on how to maintain the hood 12 (instruction information) or information on how to maintain the exhaust fan 14 (instruction information).

[0106] In this way, the user can easily understand the recommended maintenance timing without worrying about the timing of maintenance of the hood 12 or the exhaust fan 14 by using the two-dimensional barcode B or two-dimensional barcode C. Also, the user can obtain information on the maintenance method (instruction information) for each without having to search for the range hood 100 instruction manual or contact a service center.

[0107] In other words, the range hood 100 generates a two-dimensional barcode containing code information (suitable for the condition of the range hood 100) based on the second specified time T2 or the third specified time T3, and can provide the user with information (instruction information) regarding the optimal way to care for the range hood 100.

[0108] Therefore, it is possible to improve the convenience of the user in handling the range hood 100 and reduce the workload of the user.

[0109] In this modified example, the server 200 transmits information on care methods (instruction information) to the two-dimensional barcode reader 150. However, it is also possible to generate product information (additional information such as text, images, etc.) on accessories, care tools, and detergents that are useful for care, as well as URL information for accessing web pages such as e-commerce sites where these products can be purchased, and transmit this information to the two-dimensional barcode reader 150, where it can be displayed.

[0110] The information (instruction information) relating to each care method may be provided in the form of downloading electronic data describing the care method to the two-dimensional barcode reader 150, or in the form of directing the user to a web page on which the care method is posted.

[0111] The second accumulated operating time t2 may be reset to its initial state (for example, second accumulated operating time t2 = 0) when a first predetermined condition is satisfied. The first predetermined condition is, for example, when the user presses a button, such as a "hood maintenance complete" button, provided on the range hood 100 to instruct the control unit 22 to reset the second accumulated operating time t2 to its initial state. Examples of buttons that instruct the control unit 22 to reset the second accumulated operating time t2 to its initial state include mechanical and electrostatic touch buttons.

[0112] In addition, when the control unit 22 sets the second accumulated operating time t2 to the initial state by satisfying the first predetermined condition, the control unit 22 may perform control so that the pattern of the two-dimensional barcode B is not displayed on the two-dimensional barcode display unit 18.

[0113] The third accumulated operating time t3 may be reset to its initial state (for example, third accumulated operating time t3 = 0) when a second predetermined condition is satisfied. The second predetermined condition is, for example, when the user presses a button, such as an "exhaust fan maintenance completed" button, provided on the range hood 100 to instruct the control unit 22 to reset the third accumulated operating time t3 to its initial state. Examples of the button that instructs the control unit 22 to reset the third accumulated operating time t3 to its initial state include mechanical and electrostatic touch buttons.

[0114] In addition, when the control unit 22 sets the third accumulated operating time t3 to the initial state by satisfying the second predetermined condition, the control unit 22 may perform control so that the pattern of the two-dimensional barcode C is not displayed on the two-dimensional barcode display unit 18.

[0115] The control unit 22 may control the two-dimensional barcode display unit 18 to display the patterns of two-dimensional barcode B and two-dimensional barcode C in parallel, or may control the unit 18 to display only one of them, or to be able to switch between them.

[0116] In the second modification, the two-dimensional barcode patterns generated by the two-dimensional barcode generating unit 22c are two types, but this is not limitative and more than two types of patterns may be used.

[0117] [Variation 3] In the third modification, the server 200 provides the user with information relating to how to use the range hood 100, including information relating to a method for returning from an abnormal state to a normal state (operation instruction information).

[0118] Modification 3 will be described below with reference to Figs. 11 to 14. Fig. 11 is a partial front view showing the configuration of range hood 100 of Modification 3. Fig. 12 is a functional block diagram schematically showing control unit 22 of Modification 3. Fig. 13 is a flowchart showing the operation of displaying a two-dimensional barcode on two-dimensional barcode display unit 18 of range hood 100 of Modification 3. Fig. 14 is a flowchart showing the operation of transmitting and receiving information in server 200 of Modification 3.

[0119] In the drawings and explanation of Modification 3, the same or equivalent components and members as those in the embodiment of the present invention are denoted by the same reference numerals. Explanations that overlap with the embodiment will be omitted as appropriate, and the explanation will focus on the configurations that differ from the embodiment.

[0120] In the third modification, the configuration of the range hood 100 differs from that of the embodiment in that it includes a rectifying plate 24 and a rectifying plate removal detection unit 26, but is the same in other respects.

[0121] The rectifying vane 24 controls the flow of air drawn into the air inlet of the hood 12. The rectifying vane 24 is positioned below the hood 12. The rectifying vane 24 is positioned so as to cover the air inlet of the hood 12, and forms a gap between the rectifying vane 24 and the hood 12 for guiding air to the air inlet of the hood 12. The speed of the air drawn into the gap formed by the rectifying vane 24 and the hood 12 increases. This allows the air heated by the cooking appliance and rising to be efficiently guided to the air inlet of the hood 12.

[0122] The rectifying plate removal detection unit 26 is a type of sensor that detects that the rectifying plate 24 has been removed from the hood 12. A limit switch, for example, can be used as a means for detecting that the rectifying plate 24 has been removed from the hood 12. The rectifying plate removal detection unit 26 is electrically connected to the control unit 22 so as to be able to communicate with the control unit 22. When the rectifying plate 24 has been removed from the hood 12, the rectifying plate removal detection unit 26 transmits a signal to the control unit 22.

[0123] Based on various information obtained from the operation unit 16, the memory unit 22d, and the straightening plate removal detection unit 26, the processing unit 22e outputs the processing results to one or more of the exhaust motor control unit 22a, the two-dimensional barcode display control unit 22b, and the two-dimensional barcode generation unit 22c.

[0124] The above is the configuration of the range hood 100 of the third modified example.

[0125] Next, the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit 18 of the range hood 100 of the third modification will be described.

[0126] First, when the user selects operation ON from the operation unit 16, in step S301, the control unit 22 determines whether or not the rectifying plate 24 has been removed from the hood 12, using the rectifying plate removal detection unit 26. If it is determined that the rectifying plate 24 has not been removed from the hood 12 (the control unit 22 has not received a signal indicating that the rectifying plate 24 has been removed from the rectifying plate removal detection unit 26) (N in step S301), the control unit 22 repeats step S301.

[0127] In step S301, if it is determined that the rectifying plate 24 has been removed from the hood 12 (the control unit 22 has received a signal from the rectifying plate removal detection unit 26 indicating that the rectifying plate 24 has been removed) (Y in step S301), the control unit 22 proceeds to step S302.

[0128] In step S302, the control unit 22 stops the operation of the exhaust motor 14b by the exhaust motor control unit 22a, and the process proceeds to step S303.

[0129] In step S303, control unit 22 reads from storage unit 22d URL information for accessing server 200 and code information C based on the signal from straightening plate removal detection unit 26, and proceeds to step S304. Code information C is a systematic symbol for reading from server 200 information (instruction manual information) relating to a method for restoring range hood 100 from an abnormal state to a normal state.

[0130] In step S304, the control unit 22 causes the two-dimensional barcode generating unit 22c to generate a two-dimensional barcode D including the information read from the storage unit 22d, and the process proceeds to step S305.

[0131] In step S305, the control unit 22 causes the two-dimensional barcode display control unit 22b to display the pattern of the two-dimensional barcode D on the two-dimensional barcode display unit 18.

[0132] The above is the operation for displaying a two-dimensional barcode on the two-dimensional barcode display unit 18 of the range hood 100 of the third modified example.

[0133] Next, the operation of transmitting and receiving information in server 200 of the third modification will be described.

[0134] First, in step S306, the server 200 receives the code information C sent from the two-dimensional barcode reader 150 via the telecommunications line 300 by the receiving unit 152 (information transmission B), and proceeds to step S307.

[0135] In step S307, server 200 reads information corresponding to code information C from storage unit 154, and proceeds to step S308. The information corresponding to code information C is information (instruction manual information) relating to a method for restoring range hood 100 from an abnormal state to a normal state.

[0136] In step S308, the server 200 causes the transmission information generation unit 156 to generate information to be transmitted to the two-dimensional barcode reader 150 based on the information read from the storage unit 154, and proceeds to step S309.

[0137] In step 309, the server 200 causes the information transmitting unit 158 ​​to transmit the information generated by the transmission information generating unit 156 to the two-dimensional barcode reader 150 via the electric communication line 300 (information transmission C).

[0138] The above is the operation of transmitting and receiving information in server 200 of the third modification.

[0139] Modification 3 can provide the following actions and effects.

[0140] An impeller (not shown) of exhaust fan 14 may be located near the air inlet of hood 12. Therefore, rectifying vane 24 not only controls the airflow sucked into the air inlet of hood 12, but also serves as a protective device that prevents the user from easily approaching the rotating impeller.

[0141] In Modification 3, if the rectifying vane 24 is removed from the hood 12 without following the correct procedure, such as when the rectifying vane 24 is removed from the hood 12 while the exhaust fan 14 is operating, the operation of the exhaust fan 14 is stopped to reduce the possibility of a user coming into contact with the rotating blades and being injured. At the same time, a two-dimensional barcode D is displayed on the two-dimensional barcode display unit 18, making it possible to notify the user that the range hood 100 is in an abnormal state. In Modification 3, the abnormal state of the range hood 100 refers to a state in which the rectifying vane 24 is removed from the hood 12 while the exhaust fan 14 is operating.

[0142] The user uses the two-dimensional barcode reader 150 to access the server 200 from the two-dimensional barcode D and obtains information (instruction manual information) relating to a method for restoring the abnormal state of the range hood 100 to a normal state.

[0143] In this way, the user can easily understand the abnormal state of the range hood 100, and can easily obtain information (instruction information) on how to restore the abnormal state of the range hood 100 to a normal state without having to search for an instruction manual or contact a service center.

[0144] In other words, the range hood 100 generates a two-dimensional barcode containing code information (suitable for the state of the range hood 100) based on the signal from the straightening plate removal detection unit 26, and can provide the user with information (instruction information) regarding optimal handling of the range hood 100.

[0145] The information on how to return the range hood 100 from an abnormal state to a normal state may be provided in the form of downloading electronic data describing the method for returning the range hood 100 from an abnormal state to a normal state to the two-dimensional barcode reader 150, or in the form of directing the user to a web page that contains information about the method for returning the range hood 100 from an abnormal state to a normal state.

[0146] Therefore, it is possible to improve the convenience of the user in handling the range hood 100 and reduce the workload of the user.

[0147] In Modification 3, the abnormal state of range hood 100 is defined as a state in which rectifying vane 24 is removed from hood 12 while exhaust fan 14 is operating, but this is not limited to this. For example, in a range hood 100 equipped with an oil collecting unit that collects oil contained in the air drawn into range hood 100 and a cleaning unit that cleans the oil collecting unit, the abnormal state of range hood 100 may be defined as a state in which rectifying vane 24 is removed while the cleaning unit is operating.

[0148] [Variation 4] In the fourth modification, the server 200 provides the user with information on how to purchase the range hood 100, among information on how the range hood 100 is handled.

[0149] Modification 4 will be described below with reference to Figs. 15 to 17. Fig. 15 is a partial front view showing the configuration of range hood 100 of Modification 4. Fig. 16 is a flowchart showing the operation of displaying a two-dimensional barcode on two-dimensional barcode display unit 18 of range hood 100 of Modification 4. Fig. 17 is a flowchart showing the operation of transmitting and receiving information in the server of Modification 4.

[0150] In the drawings and explanation of Modification 4, the same or equivalent components and members as those in the embodiment of the present invention are denoted by the same reference numerals. Explanations that overlap with the embodiment will be omitted as appropriate, and the explanation will focus on the configurations that differ from the embodiment.

[0151] In the fourth modification, the configuration of the range hood 100 differs from that of the embodiment in that the information transmission C includes purchasing means information and that the range hood 100 is provided with a filter 28, which is a replacement part, but is otherwise the same.

[0152] The purchasing means information is URL information or telephone number information of a web page where replacement parts for the range hood 100 can be purchased.

[0153] The replacement parts are components of the range hood 100 that can be replaced by the user of the range hood 100 themselves.

[0154] This modification will be described using the filter 28, which is a replacement part.

[0155] Based on the information contained in information transmission B, server 200 compares the information with information about the range hood 100 previously registered in server 200. Note that server 200 has previously stored range hood registration information, such as information about the user of range hood 100, individual identification information for the range hood 100 being registered, and information about the date of purchase (or the date the user began using the range hood 100), through a user registration method using a different means (for example, registration by postcard or web page). Server 200 transmits information based on the results of comparing the information contained in information transmission B with the range hood registration information to two-dimensional barcode reader 150 via telecommunications line 300 (information transmission C). Information transmission C includes information about the purchasing method, such as the manufacturer, distributor, or e-commerce.

[0156] The manufacturing company is a company that develops or manufactures the range hood 100, and the sales company is a company that sells the range hood 100 developed or manufactured by the manufacturing company to consumers or retailers.

[0157] Filter 28 is a sheet-like metal plate that is provided between the intake and exhaust ports of hood 12 and is capable of separating oily smoke that has flowed into hood 12 from the intake port into oil and air. Note that filter 28 may be of any shape or material as long as it is capable of separating oily smoke that has flowed into hood 12 from the intake port into oil and air.

[0158] First, the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit 18 of the range hood 100 of the fourth modification will be described.

[0159] First, when the user selects operation ON from the operating unit 16, in step S401, the control unit 22 starts accumulating the accumulated operating time of the range hood 100 using the timing unit 22f as the fourth accumulated operating time t4, and proceeds to step S402.

[0160] In step S402, the control unit 22 determines whether the fourth integrated operating time t4 has reached a fourth predetermined time T4 stored in the memory unit 22d. The fourth predetermined time T4 is the time (e.g., 87,600 hours) after which replacement of the filter 28 is recommended.

[0161] In step S402, if it is determined that the fourth integrated operating time t4 has reached the fourth predetermined time T4 (t4≧T4) (Y in step S402), the control unit 22 proceeds to step S403.

[0162] In step S402, when it is determined that the fourth integrated operation time t4 has not reached the fourth predetermined time T4 (t4 < T4) (N in step S402), the control unit 22 repeats step S402. When repeating step S402, the control unit 22 continues to integrate the operation time of the range hood 100 using the timer unit 22f. Note that the information on the fourth integrated operation time t4 is sequentially stored in the storage unit 22d.

[0163] In step S403, the control unit 22 reads out from the storage unit 22d the URL information for accessing the server 200 and the code information D based on the fourth predetermined time T4, and proceeds to step S404. The code information D is a symbol that was a system for reading the purchase means information of the filter 28 from the server 200.

[0164] In step S404, the control unit 22 generates a two-dimensional barcode E including the information read out from the storage unit 22d by the two-dimensional barcode generation unit 22c, and proceeds to step S405.

[0165] In step S405, the control unit 22 displays the pattern of the two-dimensional barcode E on the two-dimensional barcode display unit 18 by the two-dimensional barcode display control unit 22b.

[0166] The above is the operation of displaying the two-dimensional barcode on the two-dimensional barcode display unit 18 of the range hood 100 in Modified Example 4.

[0167] Next, the operation of information transmission and reception in the server 200 of Modified Example 4 will be described.

[0168] First, when the code information D is transmitted (information transfer B) from the two-dimensional barcode reader 150 to the server 200, in step S406, the server 200 receives the code information D via the telecommunication line 300 by the receiving unit 152, and proceeds to step S407.

[0169] In step S407, the server 200 reads out information corresponding to the code information D from the storage unit 154, and proceeds to step S408. The information corresponding to the code information D is information relating to the purchasing method information of the filter .

[0170] In step S408, the server 200 causes the transmission information generation unit 156 to generate information to be transmitted to the two-dimensional barcode reader 150 based on the information read from the storage unit 154, and proceeds to step S409.

[0171] In step S409, the server 200 causes the information transmitting unit 158 ​​to transmit the information generated by the transmission information generating unit 156 to the two-dimensional barcode reader 150 via the electric communication line 300 (information transmission C).

[0172] The above is the operation of transmitting and receiving information in server 200 of the fourth modification.

[0173] Modification 4 can provide the following actions and effects.

[0174] The user reads the two-dimensional barcode E displayed on the two-dimensional barcode display unit 18 of the range hood 100 using the two-dimensional barcode reader 150, accesses the server 200 via the telecommunications line 300, and obtains information on how to purchase the filter 28.

[0175] Once the user has obtained the information on how to purchase the filter 28, the user can purchase the filter 28 from the manufacturer, distributor, or e-commerce site.

[0176] In this way, the two-dimensional barcode E allows the user to instantly order the necessary replacement parts, thereby reducing the time spent searching for replacement parts on a web page, etc., and reducing the burden on the user.

[0177] In other words, the range hood 100 generates a two-dimensional barcode containing code information (suitable for the condition of the range hood 100) based on the fourth predetermined time T4, and can provide the user with information regarding the optimal replacement of range hood 100 parts.

[0178] Therefore, it is possible to improve the convenience of the user in handling the range hood 100 and reduce the workload of the user.

[0179] The fourth accumulated operating time t4 may be reset to its initial state (for example, fourth accumulated operating time t4 = 0) when a third predetermined condition is satisfied. The third predetermined condition is, for example, when the user presses a button, such as a "filter replacement completed" button, provided on the range hood 100 to instruct the control unit 22 to reset the fourth accumulated operating time t4 to its initial state. Examples of the button that instructs the control unit 22 to reset the fourth accumulated operating time t4 to its initial state include mechanical and electrostatic touch buttons.

[0180] In addition, when the control unit 22 sets the fourth accumulated operating time t4 to the initial state by satisfying the third predetermined condition, the control unit 22 may control the pattern of the two-dimensional barcode E to be hidden on the two-dimensional barcode display unit 18.

[0181] Furthermore, in this modified example, the filter 28 is cited as an example of a replaceable part, but any component other than the filter 28 that can be replaced by the user himself / herself may be used, and the form is not limited thereto.

[0182] [Variation 5] In the fifth modification, the server 200 provides the user with service and maintenance information for the range hood 100, among the information related to the handling of the range hood 100.

[0183] Modification 5 will be described below with reference to Fig. 18 and Fig. 19. Fig. 18 is a flowchart showing the operation of displaying a two-dimensional barcode on two-dimensional barcode display unit 18 of range hood 100 in Modification 5. Fig. 19 is a flowchart showing the operation of transmitting and receiving information in the server in Modification 5.

[0184] In the fifth modification, the configuration of the server 200 differs from that of the embodiment in that the information transmission C includes information on the means for requesting maintenance of the range hood 100, but is the same in other respects.

[0185] The maintenance includes at least one of repairing a malfunction of the range hood 100 and replacing a component part of the range hood 100.

[0186] The maintenance request means information is URL information of a web page where maintenance can be requested or information on a telephone number.

[0187] This modification will be described using the exhaust fan 14a, which is the object of maintenance.

[0188] Server 200 compares the information included in information transmission B with information about range hood 100 previously registered in server 200. Note that server 200 has previously stored range hood registration information, such as information about the user of range hood 100, individual identification information for the range hood 100 being registered, and information about the date of purchase (or the date the user began using range hood 100), through a user registration method using a different means (e.g., registration by postcard or webpage). Server 200 transmits information based on the results of comparing the information included in information transmission B with the range hood registration information to two-dimensional barcode reader 150 via telecommunications line 300 (information transmission C). Information transmission C includes at least one of information about a maintenance request means of a maintenance department in charge of maintaining range hood 100 at the manufacturing company or sales company, and information about a maintenance request means of a maintenance company that performs maintenance on range hood 100.

[0189] A maintenance company is a company or individual other than the manufacturing company or sales company that performs maintenance, such as an electrical appliance store near the residence of the user of the range hood 100.

[0190] First, the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit 18 of the range hood 100 of the fifth modification will be described.

[0191] First, when the user selects operation ON from the operating unit 16, in step S501, the control unit 22 starts accumulating the accumulated operating time of the range hood 100 using the timing unit 22f as the fifth accumulated operating time t5, and proceeds to step 502.

[0192] In step S502, the control unit 22 determines whether the fifth integrated operating time t5 has reached a fifth predetermined time T5 stored in the memory unit 22d. The fifth predetermined time T5 is the time (e.g., 21,900 hours) after which replacement of the exhaust fan 14a is recommended.

[0193] In step S502, when it is determined that the fifth integrated operation time t5 has reached the fifth predetermined time T5 (t5 ≧ T5) (Y in step S502), the control unit 22 proceeds to step S503.

[0194] In step S502, when it is determined that the fifth integrated operation time t5 has not reached the fifth predetermined time T5 (t5 < T5) (N in step S502), the control unit 22 proceeds to step S506.

[0195] In step S503, the control unit 22 reads out from the storage unit 22d the URL information for accessing the server 200 and the code information E based on the fifth predetermined time T5, and proceeds to step S504. The code information E is a symbol that was a system for reading the service maintenance information of the exhaust fan 14a from the server 200.

[0196] In step S504, the control unit 22 generates a two-dimensional barcode F including the information read out from the storage unit 22d by the two-dimensional barcode generation unit 22c, and proceeds to step S505.

[0197] In step S505, the control unit 22 displays the pattern of the two-dimensional barcode F on the two-dimensional barcode display unit 18 by the two-dimensional barcode display control unit 22b.

[0198] In step S506, the control unit 22 determines whether the energization time t6 has reached the sixth predetermined time T6 stored in the storage unit 22d. The energization time t6 is an integrated value of the time during which the range hood 100 is energized by an energization means such as a power outlet, and is integrated using the timer unit 22f. Note that the energization time t6 is integrated only based on the presence or absence of energization, regardless of the operation of the range hood 100. The sixth predetermined time T6 is the time (for example, 87600 hours) when replacement of the exhaust fan 14a is recommended.

[0199] In step S506, when it is determined that the energization time t6 has reached the sixth predetermined time T6 (t6 ≧ T6) (Y in step S506), the control unit 22 proceeds to step S503.

[0200] In step S506, when it is determined that the energization time t6 has not reached the sixth predetermined time T6 (t6 < T6) (N in step S506), the control unit 22 returns to step S502. Note that the information on the fifth integrated operation time t5 and the energization time t6 is sequentially stored in the storage unit 22d.

[0201] Next, the operation of information transmission and reception in the server 200 of the fifth modification will be described.

[0202] First, when the code information E is transmitted (information transmission B) from the two-dimensional barcode reader 150 to the server 200, in step S507, the server 200 receives the code information E via the telecommunication line 300 by the receiving unit 152 and proceeds to step S508.

[0203] In step S508, the server 200 reads out the information corresponding to the code information E from the storage unit 154 and proceeds to step S509. The information corresponding to the code information E is the maintenance request means information of the exhaust fan 14a.

[0204] In step S509, the server 200 generates information for transmission to the two-dimensional barcode reader 150 based on the information read from the storage unit 154 by the transmission information generation unit 156 and proceeds to step S510.

[0205] In step S510, the server 200 transmits the information generated by the transmission information generation unit 156 to the two-dimensional barcode reader 150 via the telecommunication line 300 by the information transmission unit 158 (information transmission C).

[0206] The above is the operation of information transmission and reception in the server 200 of the fifth modification.

[0207] Modification 5 can provide the following actions and effects.

[0208] The user reads the two-dimensional barcode F displayed on the two-dimensional barcode display unit 18 of the range hood 100 using the two-dimensional barcode reader 150, accesses the server 200 via the telecommunications line 300, and obtains information on the means for requesting maintenance of the exhaust fan 14a.

[0209] Once the user has obtained the information on the means for requesting maintenance of the exhaust fan 14a, the user can request maintenance via the URL of the web page or by telephone.

[0210] In this way, since maintenance can be requested immediately using the two-dimensional barcode E, the time spent searching for maintenance request information on a web page, etc. can be reduced, thereby reducing the burden on the user. In addition, the user can easily understand the recommended timing for replacement of the exhaust fan 14a without having to worry about when it is necessary to replace it.

[0211] In other words, the range hood 100 generates a two-dimensional barcode containing code information (suitable for the condition of the range hood 100) based on the fifth predetermined time T5 or the sixth predetermined time T6, and can provide the user with information regarding optimal service and maintenance of the range hood 100.

[0212] Therefore, it is possible to improve the convenience of the user in handling the range hood 100 and reduce the workload of the user.

[0213] The fifth accumulated operating time t5 may be reset to its initial state (e.g., fifth accumulated operating time t5 = 0) when a fourth predetermined condition is satisfied. The fourth predetermined condition is, for example, when the user presses a button, such as an "exhaust fan replacement completed" button, provided on the range hood 100 to instruct the control unit 22 to reset the fifth accumulated operating time t5 to its initial state. Examples of the button that instructs the control unit 22 to reset the fifth accumulated operating time t5 to its initial state include mechanical and electrostatic touch buttons.

[0214] In addition, when the control unit 22 sets the fifth accumulated operating time t5 to the initial state by satisfying the fourth predetermined condition, the control unit 22 may control the pattern of the two-dimensional barcode F to be hidden on the two-dimensional barcode display unit 18.

[0215] The power-on time t6 may be reset to its initial state (for example, power-on time t6 = 0) when a fifth predetermined condition is satisfied. The fifth predetermined condition is, for example, when the user presses a button, such as an "exhaust fan replacement completed" button, provided on the range hood 100 to instruct the control unit 22 to reset the power-on time t6 to its initial state. Examples of buttons that instruct the control unit 22 to reset the power-on time t6 to its initial state include mechanical and electrostatic touch buttons.

[0216] Furthermore, the control unit 22 may perform control so that the pattern of the two-dimensional barcode F is not displayed on the two-dimensional barcode display unit 18 when the fifth predetermined condition is satisfied and the energization time t6 is set to the initial state.

[0217] [Variation 6] In the sixth modification, the server 200 provides the user with current setting information of the range hood 100, among information related to the handling of the range hood 100.

[0218] Modification 6 will be described below with reference to Fig. 20 and Fig. 21. Fig. 20 is a flowchart showing the operation of displaying a two-dimensional barcode on two-dimensional barcode display unit 18 of range hood 100 in Modification 6. Fig. 20 is a flowchart showing the operation of transmitting and receiving information in the server in Modification 6.

[0219] In the sixth modification, the configuration of range hood 100 differs from that of the embodiment in that it includes setting information storage unit 22g, but is otherwise the same. Also, in the sixth modification, the configuration of server 200 differs in that it includes web page generation unit 159 and second transmission information generation unit 157, but is otherwise the same.

[0220] With conventional range hoods, users have to go through complicated procedures to obtain the range hood's setting information, such as pressing and holding multiple buttons in a specific order, and then checking the instruction manual based on the information obtained from the LED display, etc. Therefore, there is a need to simplify the procedures.

[0221] Range hood setting information includes, for example, the ON / OFF setting of a range hood with a 24-hour ventilation function, the ON / OFF setting of a range hood with a ventilation function that operates according to the room temperature in the space in which it is installed, and the sensitivity setting of a range hood with a function that adjusts the airflow of the exhaust fan according to the amount of heat generated by cooking appliances installed below the range hood.

[0222] The control unit 22 includes a setting information storage unit 22g.

[0223] The setting information storage unit 22g stores current setting information of the range hood 100, such as the ON / OFF setting of the 24-hour ventilation operation function of the range hood.

[0224] Based on the current setting information of the range hood 100 received by the receiving unit 152 through information transmission A, the web page generation unit 159 generates a web page on the Internet that contains the current setting information of the range hood 100, which is displayed in language or as a diagram.

[0225] The second transmission information generation unit 157 generates information (information transmission C) to be transmitted to the two-dimensional barcode reader 150. The information transmission C includes URL information for accessing a web page on which the current setting information of the range hood 100 is described.

[0226] A specific operation of this modified example will now be described.

[0227] First, the operation of displaying a two-dimensional barcode on the two-dimensional barcode display unit 18 of the range hood 100 of the sixth modification will be described.

[0228] First, when the user presses and holds the operation ON button on the operation unit 16 for three seconds, in step S601, the control unit 22 reads URL information for accessing the server 200 from the storage unit 22d, reads code information F from the setting information storage unit 22g, and proceeds to step S602. The code information F is a symbol that indicates the current setting information of the range hood 100.

[0229] In step S602, the control unit 22 causes the two-dimensional barcode generating unit 22c to generate a two-dimensional barcode G including the information read from the storage unit 22d and the setting information storage unit 22g, and then the process proceeds to step S603.

[0230] In step S603, the control unit 22 causes the two-dimensional barcode display control unit 22b to display the pattern of the two-dimensional barcode G on the two-dimensional barcode display unit 18.

[0231] Next, the operation of transmitting and receiving information in server 200 of the sixth modification will be described.

[0232] First, when the code information F is transmitted from the two-dimensional barcode reader 150 to the server 200 (information transmission B), in step S604, the server 200 receives the code information F via the telecommunications line 300 using the receiving unit 152, and proceeds to step S605.

[0233] In step S605, the server 200 uses the code information F to generate a web page on the Internet in the web page generation unit 159, which contains the current setting information of the range hood 100, and then the process proceeds to S606.

[0234] In step S606, the server 200 generates information to be sent to the two-dimensional barcode reader 150 based on the information of the web page generated on the Internet by the web page generation unit 159, which contains the current setting information of the range hood 100, and proceeds to step S607.

[0235] In step S607, the server 200 causes the information transmitting unit 158 ​​to transmit the information generated by the second transmission information generating unit 157 to the two-dimensional barcode reader 150 via the electric communication line 300 (information transmission C).

[0236] The above is the operation of transmitting and receiving information in server 200 of the sixth modification.

[0237] Modification 6 can provide the following actions and effects.

[0238] The user reads the two-dimensional barcode F displayed on the two-dimensional barcode display unit 18 of the range hood 100 using the two-dimensional barcode reader 150, accesses a web page containing the current setting information of the range hood 100, and obtains the current setting information of the range hood 100.

[0239] In this way, the two-dimensional barcode F allows the user to easily ascertain the current setting information of the range hood 100 without having to go through complicated procedures.

[0240] This improves the convenience of handling the range hood 100 and reduces the workload of the user.

[0241] Note that the three-second long press of the operation ON button on operation unit 16 operated by the user may be a long press of another button, or the simultaneous pressing of multiple buttons. The long press time does not have to be three seconds. Furthermore, setting information storage unit 22g does not have to store only setting information related to the ON / OFF setting of the 24-hour ventilation operation function of a range hood, but may also store other setting information of range hood 100.

[0242] While the range hood according to the present invention has been described above based on the present embodiment, the present invention is not limited to this embodiment. As long as it does not deviate from the gist of the present invention, various modifications conceivable by those skilled in the art to this embodiment and configurations constructed by combining components of different embodiments are also included within the scope of the present invention. [Industrial Applicability]

[0243] INDUSTRIAL APPLICABILITY The present invention is useful as an information providing system that can improve the convenience of range hood handling for users and reduce the workload of users. [Explanation of symbols]

[0244] 10. Fan Box 12. Food 14 Exhaust fan 14a Exhaust fan 14b Exhaust motor 16 Control section 18 Two-dimensional barcode display section 20 Current measurement section 22 Control Unit 22a Exhaust motor control unit 22b Two-dimensional barcode display control unit 22c Two-dimensional barcode generator 22d storage section 22e Processing section 22f Clock section 22g Setting information storage section 24 Rectifier plate 26 Straightening plate removal detection unit 28 filters 100 Range Hood 150 Two-dimensional barcode reader 152 Receiving unit 154 Storage section 156 Transmission information generation unit 157 Second transmission information generation unit 158 Information Transmission Department 159 Web Page Generation Unit 160 Processing section 200 servers 300 Telecommunications Lines t1 First cumulative operation time T1 First predetermined time t2 Second cumulative operating time T2 Second predetermined time t3 Third cumulative operating time T3 Third predetermined time t4 Fourth cumulative operating time T4 Fourth predetermined time t5 Fifth cumulative operating time T5 Fifth prescribed time t6 Energization time T6 Sixth predetermined time

Claims

1. An information provision system relating to range hood handling, The information providing system includes: The range hood; a server that provides information regarding handling of the range hood; Equipped with The range hood is a two-dimensional barcode generator for generating a two-dimensional barcode; a two-dimensional barcode display unit for displaying the two-dimensional barcode generated by the two-dimensional barcode generation unit; a storage unit that stores URL information for accessing the server via a telecommunications line and individual identification information of the range hood; a control unit that controls the operations of the two-dimensional barcode generation unit and the two-dimensional barcode display unit; Equipped with The control unit reading out the URL information and the individual identification information of the range hood from the storage unit; the two-dimensional barcode generating unit generates a two-dimensional barcode including the URL information and individual identification information of the range hood; The server a receiving unit that receives the individual identification information of the range hood transmitted from the two-dimensional barcode reader via the URL information; a storage unit that stores range hood registration information; a transmission information generation unit that generates information to be transmitted to the two-dimensional barcode reader based on the individual identification information of the range hood received by the receiving unit and the range hood registration information stored in the storage unit; an information transmitting unit that transmits the information generated by the transmission information generating unit to the two-dimensional barcode reader; Equipped with The individual identification information of the range hood is information relating to the model of the range hood and information relating to a serial number that can identify the manufacturing date of the range hood, The range hood registration information is The range hood includes individual identification information, The information generated by the transmission information generation unit is The information includes at least one of instruction manual information for the range hood, information encouraging the user to replace the range hood, and URL information for accessing an e-commerce webpage where the range hood can be purchased. An information providing system characterized by:

2. An information provision system relating to range hood handling, The information providing system includes: The range hood; a server that provides information regarding handling of the range hood; Equipped with The range hood is a two-dimensional barcode generator for generating a two-dimensional barcode; a two-dimensional barcode display unit for displaying the two-dimensional barcode generated by the two-dimensional barcode generation unit; a storage unit that stores URL information for accessing the server via a telecommunications line and individual identification information of the range hood; a control unit that controls the operations of the two-dimensional barcode generation unit and the two-dimensional barcode display unit; Equipped with The control unit reading out the URL information and the individual identification information of the range hood from the storage unit; the two-dimensional barcode generating unit generates a two-dimensional barcode including the URL information and individual identification information of the range hood; The server a receiving unit that receives the individual identification information of the range hood transmitted from the two-dimensional barcode reader via the URL information; a storage unit that stores range hood registration information; a transmission information generation unit that generates information to be transmitted to the two-dimensional barcode reader based on the individual identification information of the range hood received by the receiving unit and the range hood registration information stored in the storage unit; an information transmitting unit that transmits the information generated by the transmission information generating unit to the two-dimensional barcode reader; Equipped with The range hood is manufactured by a manufacturer, The range hood is sold by the manufacturer or distributor, The individual identification information of the range hood is information relating to the model of the range hood and information relating to a serial number that can identify the manufacturing date of the range hood, The range hood registration information is The range hood includes individual identification information, The information generated by the transmission information generation unit is The information includes information on the purchasing means of the manufacturer, the distributor, or the e-commerce, The purchasing means information is URL information or telephone number information of a web page where the replacement part for the range hood can be purchased. An information providing system characterized by:

3. An information provision system relating to range hood handling, The information providing system includes: The range hood; a server that provides information regarding handling of the range hood; Equipped with The range hood is a two-dimensional barcode generator for generating a two-dimensional barcode; a two-dimensional barcode display unit for displaying the two-dimensional barcode generated by the two-dimensional barcode generation unit; a storage unit that stores URL information for accessing the server via a telecommunications line and individual identification information of the range hood; a control unit that controls the operations of the two-dimensional barcode generation unit and the two-dimensional barcode display unit; Equipped with The control unit reading out the URL information and the individual identification information of the range hood from the storage unit; the two-dimensional barcode generating unit generates a two-dimensional barcode including the URL information and individual identification information of the range hood; The server a receiving unit that receives the individual identification information of the range hood transmitted from the two-dimensional barcode reader via the URL information; a storage unit that stores range hood registration information; a transmission information generation unit that generates information to be transmitted to the two-dimensional barcode reader based on the individual identification information of the range hood received by the receiving unit and the range hood registration information stored in the storage unit; an information transmitting unit that transmits the information generated by the transmission information generating unit to the two-dimensional barcode reader; Equipped with The range hood is manufactured by a manufacturer, The range hood is sold by the manufacturer or distributor, The individual identification information of the range hood is information relating to the model of the range hood and information relating to a serial number that can identify the manufacturing date of the range hood, The range hood registration information is The range hood includes individual identification information, The information generated by the transmission information generation unit is The information includes at least one of information on a means for requesting maintenance from a maintenance department in charge of maintaining the range hood at the manufacturing company or the sales company, and information on a means for requesting maintenance from a maintenance company that performs maintenance on the range hood, The maintenance includes performing at least one of repairing a malfunction of the range hood and replacing a component of the range hood, The maintenance request means information is URL information of a web page where the maintenance can be requested or information on a telephone number. An information providing system characterized by:

4. An information provision system relating to the handling of range hoods, The information providing system includes: The range hood; a server that provides information regarding handling of the range hood; Equipped with The range hood is a two-dimensional barcode generator for generating a two-dimensional barcode; a two-dimensional barcode display unit for displaying the two-dimensional barcode generated by the two-dimensional barcode generation unit; a storage unit that stores URL information for accessing the server via a telecommunications line and individual identification information of the range hood; a control unit that controls the operations of the two-dimensional barcode generation unit and the two-dimensional barcode display unit; Equipped with The control unit reading out the URL information and the individual identification information of the range hood from the storage unit; the two-dimensional barcode generating unit generates a two-dimensional barcode including the URL information and individual identification information of the range hood; The server a receiving unit that receives the individual identification information of the range hood transmitted from the two-dimensional barcode reader via the URL information; a storage unit that stores range hood registration information; a transmission information generation unit that generates information to be transmitted to the two-dimensional barcode reader based on the individual identification information of the range hood received by the receiving unit and the range hood registration information stored in the storage unit; an information transmitting unit that transmits the information generated by the transmission information generating unit to the two-dimensional barcode reader; Equipped with The range hood is a setting information storage unit that stores current setting information of the range hood; The control unit Read the current setting information of the range hood from the setting information storage unit; The two-dimensional barcode generating unit generates a two-dimensional barcode including current setting information of the range hood; The server a web page generating unit that generates a web page on the Internet that describes the current setting information of the range hood based on the current setting information of the range hood received by the receiving unit; An information providing system characterized by comprising: a transmission information generating unit that generates URL information for accessing a web page generated by the web page generating unit, the web page containing the current setting information of the range hood.

5. The individual identification information of the range hood is The range hood includes at least one of information about the model of the range hood and information about a serial number that can identify the manufacturing date of the range hood.

5. The information providing system according to claim 1, wherein the information providing system is a system for providing information to a user.

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