Specification change proposal system and specification change proposal device

Abstract

To obtain a specification change proposal system capable of proposing the replacement of a ventilation device to a user in a specification for enabling replacement work without being hung down.SOLUTION: A specification change proposal system 100 includes a portable terminal 20, and a server 30 communicable with the portable terminal 20 through a network 40, and the server 30 includes an information acquisition part 31 for acquiring type name specifying information being information for specifying a type name of a ventilation device from the portable terminal 20, a type name specification part 32 for specifying the type name of the ventilation device on the basis of the type name specifying information, a specification change propriety determination part 33 for determining whether the ventilation device whose type name is specified can be changed to a new specification without being hung down, and an information preparation notification part 34 for creating new specification information being information about a new specification and transmitting the new specification information to the portable terminal 20 if the ventilation device whose type name is specified can be changed to the new specification.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a specification change proposal system and a specification change proposal device that propose changes to specifications to a user of a ventilation device that ventilates air in a room. [Background technology]

[0002] Among ventilation devices, there are those that are installed in the space above a room, such as in the attic, by means of ceiling-hanging fittings and ventilate through a duct. One of these, as disclosed in Patent Document 1, is a heat exchange ventilation device that simultaneously supplies and exhausts air and exchanges heat between the supply air flow and the exhaust air flow.

[0003] Compared to newer heat exchange ventilators, older models of heat exchange ventilators that have been manufactured for many years often have lower performance in terms of power consumption, noise, and heat exchange efficiency, and these performances further deteriorate due to aging. Therefore, using a heat exchange ventilator that has been manufactured for many years will increase running costs and make it difficult to maintain the comfort of the occupants of the room. For this reason, in order to improve and update the function of an installed heat exchange ventilator, replacement is required to replace parts other than consumable parts and improve performance such as power consumption, noise, and heat exchange efficiency. For this reason, a specification change proposal system that displays information about the replaced heat exchange ventilator is used to encourage users of the heat exchange ventilator to replace the heat exchange ventilator. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2001-263752 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the space above a room, such as the ceiling, beams and columns are installed, and piping for refrigerants and the like is laid out, so it is often difficult to secure space to perform some work on the heat exchange ventilator that has already been installed. For this reason, depending on the type of parts to be installed by replacement, it is necessary to remove the heat exchange ventilator from the ceiling bracket and hang it down to perform the work. In the past, when proposing the replacement of a heat exchange ventilator to a user, it was not considered whether the parts to be installed by replacement required the heat exchange ventilator to be removed from the ceiling bracket and hung down to perform the work, so there were cases where a replacement specification including parts that required the heat exchange ventilator to be hung down to perform the installation work was proposed to the user. Replacement involving hanging down the heat exchange ventilator takes a long time and requires the room in which the heat exchange ventilator is installed to have a space for work, which causes users to hesitate to replace the heat exchange ventilator. Such problems also occur when the target of replacement is a ventilator that only ventilates without heat exchange.

[0006] The present disclosure has been made in consideration of the above, and aims to provide a specification change proposal system that can propose to a user the replacement of a ventilation device with specifications that allow replacement work to be performed without the need to hoist it down. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems and achieve the object, the specification change proposal system according to the present disclosure includes a mobile terminal and a server capable of communicating with the mobile terminal via a network. The server includes an information acquisition unit that acquires type name identification information, which is information for identifying the type name of the ventilation device, from the mobile terminal, a type name identification unit that identifies the type name of the ventilation device based on the type name identification information acquired by the information acquisition unit, a specification change possibility determination unit that determines whether the ventilation device whose type name is identified by the type name identification unit can be changed to a new specification that achieves ventilation performance different from the ventilation performance of the current specification without lowering it, and an information creation notification unit that creates new specification information, which is information about the new specification, and transmits it to the mobile terminal when the ventilation device whose type name is identified by the type name identification unit can be changed to the new specification. The mobile terminal includes a type name identification information generation unit that generates the type name identification information, a type name identification information transmission unit that transmits the type name identification information to the server, and a display unit that displays the new specification information. Effect of the Invention

[0008] According to the present disclosure, it is possible to obtain an effect of providing a specification change proposal system that can propose to a user the replacement of a ventilation device with specifications that allow replacement work to be performed without hoisting it down. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing a configuration of a specification change proposal system according to a first embodiment. [Diagram 2] FIG. 1 is a perspective view showing a heat exchange ventilator that is a target product of specification change in the specification change proposal system according to the first embodiment; [Diagram 3] FIG. 1 is a perspective view showing a heat exchange ventilator that is a target product of specification change in the specification change proposal system according to the first embodiment; [Figure 4] FIG. 1 is a schematic diagram showing an air flow generated in a heat exchange ventilator that is a target product of a specification change proposal system according to the first embodiment; [Diagram 5] A flowchart showing the flow of operations of a server of the specification change proposal system according to the first embodiment. [Figure 6]FIG. 1 shows an example of displaying a static pressure air volume characteristic curve diagram and a heat exchange efficiency air volume characteristic curve diagram in the specification change proposal system according to the first embodiment. [Figure 7] FIG. 13 is a diagram showing an example of displaying power consumption in the specification change proposal system according to the first embodiment; [Figure 8] FIG. 13 is a diagram showing an example of displaying air volume levels in the specification change proposal system according to the first embodiment; [Figure 9] FIG. 1 shows a configuration of a specification change proposal system according to a second embodiment. [Figure 10] FIG. 13 is a diagram showing the configuration of a specification change proposing device according to a third embodiment. [Figure 11] FIG. 1 is a diagram showing a hardware configuration of a server of a specification change proposal system according to a first embodiment and a second embodiment. [Figure 12] FIG. 13 is a diagram showing a hardware configuration of a specification change proposing device according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specification change proposing system and a specification change proposing device according to an embodiment will be described in detail below with reference to the drawings.

[0011] Embodiment 1 1 is a diagram showing a configuration of a specification change proposal system according to embodiment 1. The specification change proposal system 100 according to embodiment 1 includes a mobile terminal 20 and a server 30. The mobile terminal 20 and the server 30 are connected via a network 40 such as the Internet.

[0012] The mobile terminal 20 includes a display unit 21 such as a liquid crystal display device, a type name identification information generating unit 22 that generates type name identification information, which is information for identifying the type name of the heat exchange ventilator that is the target device of the specification change proposal, a communication unit 23 that transmits and receives information via the network 40, and a type name identification information transmitting unit 26 that performs processing to transmit the type name identification information to the server 30. Examples of the type name identification information include image data of a part of the nameplate of the heat exchange ventilator on which the type name is printed, image data of the exterior of the heat exchange ventilator, data obtained by reading a code such as a one-dimensional barcode or a two-dimensional barcode printed on the nameplate of the heat exchange ventilator, and character information including at least a part of the type name of the heat exchange ventilator. When the type name identification information is image data of a part of the nameplate of the heat exchange ventilator on which the type name is printed or image data of the exterior of the heat exchange ventilator, the type name identification information generating unit 22 uses image data of the nameplate or the exterior of the heat exchange ventilator photographed using a camera (not shown) provided in the mobile terminal 20 as the type name identification information. Furthermore, when the type name identifying information is data obtained by reading a code such as a one-dimensional barcode or two-dimensional barcode printed on the nameplate of the heat exchange ventilator, the type name identifying information generating unit 22 regards the code data such as a one-dimensional barcode or two-dimensional barcode read using a camera (not shown) provided in the mobile terminal 20 as the type name identifying information. Furthermore, when the type name identifying information is character information including at least a part of the type name of the heat exchange ventilator, the type name identifying information generating unit 22 regards the character information input using an input device (not shown) provided in the mobile terminal 20 as the type name identifying information.

[0013] The server 30 includes an information acquisition unit 31 that acquires type name identification information, a type name identification unit 32 that identifies the type name of the heat exchange ventilator based on the type name identification information acquired by the information acquisition unit 31, and a specification changeability determination unit 33 that determines whether the heat exchange ventilator with the type name identified by the type name identification unit 32 can be changed to a new specification that achieves ventilation performance different from the ventilation performance of the current specification without lowering it. The server 30 includes an information creation and notification unit 34 that creates information to be transmitted to the mobile terminal 20 based on the determination result by the specification changeability determination unit 33, a list storage unit 35 that stores a list of specification changeable products, and a communication unit 36 ​​that transmits and receives information via the network 40. The list of specification changeable products is a list of type names of heat exchange ventilators in which at least some of the parts constituting the device can be replaced with other parts without lowering it. If the model name of the heat exchanger ventilator identified by the model name identification unit 32 is included in the list of products whose specifications can be changed, the specification change feasibility determination unit 33 determines that the heat exchanger ventilator is one that can be changed to new specifications, and if the model name of the heat exchanger ventilator identified by the model name identification unit 32 is not included in the list of products whose specifications can be changed, the specification change feasibility determination unit 33 determines that the heat exchanger ventilator is one that cannot be changed to new specifications.

[0014] In the case where the image data of the part of the nameplate on which the model name is printed is the model name identification information, the model name identification unit 32 can identify the model name of the heat exchange ventilator by extracting the character string printed on the nameplate by image processing. In addition, in the case where the external image of the heat exchange ventilator is the device data, the model name identification unit 32 can identify the model name of the heat exchange ventilator by performing a process of comparing the external image of the heat exchange ventilator whose pre-registered model name is known with the model name identification information. In addition, in the case where the data obtained by reading a code such as a one-dimensional barcode or two-dimensional barcode printed on the nameplate is the model name identification information, the model name identification unit 32 can identify the model name of the heat exchange ventilator by performing a process of comparing the data of the code such as a one-dimensional barcode or two-dimensional barcode of the heat exchange ventilator whose pre-registered model name is known with the model name identification information. In addition, in the case where the character information including at least a part of the model name of the heat exchange ventilator is the model name identification information, the model name identification unit 32 can identify the model name of the heat exchange ventilator by comparing the model name of the known heat exchange ventilator with the model name identification information.

[0015] 2 and 3 are perspective views showing a heat exchange ventilator which is a target product of the specification change proposal system according to the first embodiment. FIG. 4 is a schematic diagram showing an air flow generated in a heat exchange ventilator which is a target product of the specification change proposal system according to the first embodiment. The heat exchange ventilator 50 includes a box body 1 formed of a hexahedron. FIG. 2 shows the internal structure of the box body 1 by omitting the illustration of the top surface of the box body 1, and FIG. 3 shows the internal structure of the box body 1 by omitting the illustration of a part of the bottom surface and one side surface of the box body 1. The box body 1 includes four connection ports to which an intake air duct and an exhaust air duct connecting the outdoors and the indoors are connected. The four connection ports are an outside air connection port 51 which draws in outside air, an intake air connection port 52 which discharges the intake air into the room, a return air connection port 53 which draws in indoor air, and an exhaust air connection port 54 which discharges the exhaust air to the outdoors. A square prism-shaped heat exchanger 2 is arranged horizontally in the center inside the box body 1. The heat exchanger 2 is installed so that the diagonals of a rectangular cross section perpendicular to the longitudinal direction extend vertically and horizontally. An inspection hatch 1a is provided on one of the four sides of the box 1. Maintenance of the built-in components such as the heat exchanger 2, intake air blower 7, and exhaust air blower 8 is performed through the inspection hatch 1a. The inspection hatch 1a is blocked by closing an inspection hatch cover 6 which can be opened and closed.

[0016] The control box 9 houses a control board 9a that controls the heat exchange ventilator 50. As shown in Fig. 3, a remote controller 12 for remotely operating the heat exchange ventilator 50 is connected to the control box 9 via a power line and a signal line (not shown).

[0017] As shown in Fig. 4, in a side view, the box 1 is horizontally divided into two compartments by two ridgelines 5a at the top and bottom of the heat exchanger 2. Furthermore, each of the two horizontally divided compartments is further divided into two upper and lower compartments by two horizontal ridgelines 5b of the heat exchanger 2 and the top plate, bottom plate, interior and partition members of the box 1. Therefore, the inside of the box 1 is divided into four compartments. Of the four compartments, one of the upper two compartments has an intake fan 7 built in, and the other has an exhaust fan 8 built in.

[0018] Of the four compartments in box 1, the compartment in which supply air blower 7 is installed and the compartment below the compartment in which exhaust air blower 8 is installed form an supply air passage. The compartment below the compartment in which exhaust air blower 8 is installed is an upstream supply air passage located upstream of heat exchanger 2 in the flow of the supply air current, and the compartment in which supply air blower 7 is installed is a downstream supply air passage located downstream of heat exchanger 2 in the flow of the supply air current.

[0019] Of the four compartments in the box 1, the compartment in which the exhaust fan 8 is installed and the compartment below the compartment in which the supply fan 7 is installed form an exhaust air passage. The compartment below the compartment in which the supply fan 7 is installed is an upstream exhaust air passage located upstream of the heat exchanger 2 in the flow of the exhaust air, and the compartment in which the exhaust fan 8 is installed is a downstream exhaust air passage located downstream of the heat exchanger 2 in the flow of the exhaust air.

[0020] A temperature sensor 3 is installed in the upstream supply air duct. The temperature sensor 3 is connected by lead wires 10 to a control board 9a housed in a control box 9. The temperature sensor 3 is disposed in a position where it can detect the temperature of the supply air flow before it passes through the heat exchanger 2, i.e., the temperature of the outside air, so that the control board 9a housed in the control box 9 can switch the operation of the heat exchange ventilator 50 on and off and adjust the air volume based on the outside air temperature.

[0021] A bypass air passage is provided inside the box 1, which connects the upstream exhaust air passage and the downstream exhaust air passage, bypassing the heat exchanger 2. A damper 14 is provided at the connection point between the bypass air passage and the upstream exhaust air passage. The damper 14 has a function of switching whether the upstream exhaust air passage is connected to the heat exchanger 2 or to the bypass air passage.

[0022] When the intake air blower 7 is operated, an intake air flow is generated, and outside air is drawn in through the outside air connection port 51, passes through the upstream intake air duct, heat exchanger 2, and downstream intake air duct, and is supplied indoors through the intake air connection port 52. When the exhaust air blower 8 is operated, an exhaust air flow is generated, and indoor air is drawn in through the return air connection port 53, passes through the upstream exhaust air duct, heat exchanger 2, and downstream exhaust air duct, and is exhausted outdoors through the exhaust connection port 54. At this time, heat is continuously exchanged between the exhaust air flow and the intake air flow in the heat exchanger 2.

[0023] The motors of the exhaust fan 8 and the supply fan 7 are connected by lead wires 10 to a control board 9a housed in a control box 9. By opening the inspection hatch cover 6, the heat exchanger 2, filter 11, supply fan 7, and exhaust fan 8 of the heat exchange ventilation device 50 can be attached and detached, and other parts installed inside the box 1 can be cleaned and replaced. The remote controller 12 can be attached and detached by inserting and removing connectors installed on the power line and signal line into and from a connector installed on the control board 9a.

[0024] The heat exchange ventilation device 50 that is the subject of the specification change proposal by the specification change proposal system 100 is a product that was sold during a certain period. The heat exchange ventilation device 50 sold during this period uses an AC motor for each of the intake air blower 7 and the exhaust air blower 8. The control board 9a for the AC motor changes the rotation speed of the AC motor in four stages to change the intake air volume and the exhaust air volume in four stages. The heat exchange ventilation device 50 drives the intake air blower 7 and the exhaust air blower 8 to form an intake air flow and an exhaust air flow, and recovers heat by heat exchange between the intake air flow and the exhaust air flow in the heat exchanger 2. In addition, the heat exchanger 2, the filter 11, the geared motor 13, and the temperature sensor 3, which are the parts to be maintained, can be removed by removing the inspection hatch cover 6.

[0025] The building management company, which is the owner of the heat exchange ventilator 50, has a maintenance contract for the heat exchange ventilator 50 with a maintenance service company, and the maintenance service company performs maintenance work on the heat exchange ventilator 50. The user of the mobile terminal 20 is the maintenance service company, and the specification change proposal system 100 is used when the maintenance service company proposes to the building management company to replace the heat exchange ventilator 50. That is, the maintenance service company displays on the display unit 21 the information notified to the mobile terminal 20 based on the determination result of whether or not a change to the new specifications is possible, and presents the information to the building management company to propose replacing the heat exchange ventilator 50.

[0026] FIG. 5 is a flowchart showing the flow of the operation of the server of the specification change proposal system according to the first embodiment. In step S1, the server 30 receives type name identification information from the mobile terminal 20. In step S2, the server 30 identifies the type name of the heat exchange ventilator 50 based on the type name identification information. In step S3, the server 30 judges whether the heat exchange ventilator 50 whose type name has been identified can be changed to a new specification that realizes ventilation performance different from the ventilation performance of the current specification. The judgment of whether the change to the new specification is possible is performed based on whether the identified type name is included in a list of products whose specifications can be changed. If the heat exchange ventilator 50 whose type name has been identified can be changed to a new specification that realizes ventilation performance different from the ventilation performance of the current specification, the result in step S3 is Yes, and in step S4, the server 30 creates new specification information, which is information about the new specification that can be changed, and transmits it to the mobile terminal 20. Details of the information about the new specification will be described later. The information on the components and ventilation performance of the heat exchanger ventilator 50 in the current specifications used to create the new specification information, as well as the information on the components to be attached to the heat exchanger ventilator 50 by replacement with the new specifications and the information on the ventilation performance in the new specifications, may be stored in advance in the server 30, or may be acquired from a database (not shown) via the network 40. If the heat exchanger ventilator 50 of the identified model name cannot be changed to a new specification that achieves ventilation performance different from the ventilation performance in the current specifications, the result in step S3 is No, and in step S5 the server 30 notifies the mobile terminal 20 that the specifications cannot be changed.

[0027] The new specification information will be described. One piece of new specification information that the server 30 transmits to the mobile terminal 20 is information indicating the content of the specification change. The content of the specification change is information indicating which part will be replaced with which part due to the specification change. The content of the specification change that the server 30 transmits to the mobile terminal 20 is basically one type, but if there are multiple new specifications that can be changed, the server 30 may transmit the content of each of the multiple specification changes to the mobile terminal 20. By the server 30 transmitting the content of the specification change for each of the multiple new specifications to the mobile terminal 20, the building management company can refer to the content of the multiple specification changes displayed on the mobile terminal 20 and select the changed specification, thereby increasing the satisfaction of the building management company.

[0028] Moreover, one of the pieces of new specification information that the server 30 transmits to the mobile terminal 20 is comparison information that compares the ventilation performance under the current specifications with the ventilation performance under the new specifications after the change. By having the mobile terminal 20 display the comparison information received from the server 30 on the display unit 21, the maintenance service provider who refers to the comparison information can objectively determine the change in performance of the heat exchange ventilator 50 due to the replacement and then decide whether or not to propose a specification change to the building management company. In addition, by displaying an order button for parts required to implement the specification change and an application button for replacement work on the display screen of the comparison information, the building management company who has decided to implement the specification change can easily perform the work of ordering parts required to implement the specification change and applying for replacement work to the maintenance service provider.

[0029] Examples of information shown as comparative information include a static pressure-air volume characteristic curve diagram showing the relationship between static pressure and air volume using a curve, and a heat exchange efficiency-air volume characteristic curve diagram showing the relationship between heat exchange efficiency and air volume using a curve. FIG. 6 is a diagram showing an example of displaying a static pressure-air volume characteristic curve diagram and a heat exchange efficiency-air volume characteristic curve diagram in the specification change proposal system according to the first embodiment. In FIG. 6, the static pressure-air volume characteristic curve diagram and the heat exchange efficiency-air volume characteristic curve diagram show air volume (m 3 / h) are shown together. The static pressure air volume characteristic curve diagram and heat exchange efficiency air volume characteristic curve diagram for the current specification and the static pressure air volume characteristic curve diagram and heat exchange efficiency air volume characteristic curve diagram for the new specification are displayed side by side.

[0030] The static pressure air volume characteristic curve diagram shows the air volume (m 3 This is a line diagram showing the static pressure airflow characteristics, which are the relationship between airflow and static pressure, with the static pressure airflow characteristic curve (Pa) on the vertical axis and the static pressure airflow characteristic curve (Pa) on the current specification side by side with the static pressure airflow characteristic curve curve (Pa) on the vertical axis. By displaying the static pressure airflow characteristic curve for the current specification and the static pressure airflow characteristic curve for the new specification side by side, the performance of the current specification and the static pressure airflow characteristic curve for the new specification can be compared. For example, by displaying the static pressure airflow characteristic curve for the current specification and the static pressure airflow characteristic curve for the new specification with the horizontal and vertical ranges aligned, the improvement effect of the specification change can be easily visually confirmed. In terms of ventilation performance, the higher the airflow and the higher the static pressure outside the machine, the higher the performance. With a large airflow, it is possible to increase the maximum ventilation volume. Also, with a high static pressure outside the machine, it is possible to suppress the decrease in airflow even if the intake duct and exhaust duct are complicatedly arranged. In the example shown in Fig. 6, the maximum air volume is larger for the heat exchange ventilator 50 of the current specifications, but the static pressure is too small near the maximum air volume, so the heat exchange ventilator 50 is operated at an air volume that ensures a certain level of static pressure during actual use. Except for the vicinity of the maximum air volume, the static pressure is generally higher for the new specifications from low to high air volumes. For this reason, it is expected that ventilation performance will improve by replacing and changing to the new specifications.

[0031] The heat exchange efficiency air volume characteristic curve diagram shows the air volume (m 3 6 is a line diagram showing the air volume heat exchange efficiency characteristic, which is the relationship between air volume and heat exchange efficiency, with the vertical axis being the heat exchange efficiency (%) and the vertical axis being the air volume / h. By displaying the heat exchange efficiency air volume characteristic curve diagram of the current specification and the heat exchange efficiency air volume characteristic curve diagram of the new specification side by side, it is possible to compare the performance of the current specification and the heat exchange efficiency air volume characteristic curve diagram of the new specification. As shown in FIG. 6, the heat exchange efficiency of the new specification heat exchange ventilator 50 is higher than the heat exchange efficiency of the current specification heat exchange ventilator 50, so by replacing it and changing to the new specification, it is expected that the heat exchange efficiency can be increased and low energy consumption can be achieved.

[0032] Moreover, power consumption can be cited as an example of information shown as comparison information. Fig. 7 is a diagram showing an example of displaying power consumption in the specification change proposal system according to the first embodiment. By plotting the power consumption under the current specifications and the power consumption under the new specifications in a bar graph or the like and displaying them side by side, the extent of reduction in power consumption can be easily visually confirmed. In the example shown in Fig. 7, the bar showing the power consumption of the heat exchanger ventilator 50 with the new specifications is shorter than the bar showing the power consumption of the heat exchanger ventilator 50 with the current specifications, so that the building management company can easily grasp the extent to which power consumption will be reduced by the specification change.

[0033] The power consumption is displayed as the rated power consumption of the heat exchange ventilator 50, which is listed in the catalog, etc. By visualizing the extent of reduction in power consumption due to specification changes using comparative information on power consumption, building management companies can easily recognize the effects of improvements.

[0034] Alternatively, the current value flowing through the wiring connected to the control board 9a may be measured with a clamp meter, and the power consumption estimated based on the measured current value may be compared. Generally, the higher the current value, the higher the power consumption value, so it is possible to check the change due to deterioration from the power consumption listed in the catalog.

[0035] Also, an example of information shown as comparative information is the number of air volume steps. In the case of a specification change in which the motors driving the intake air blower 7 and the exhaust air blower 8 are changed from AC motors to DC motors, it is possible to increase the number of air volume steps of the heat exchange ventilation device 50. DC motors are more efficient than AC motors, and therefore have better power consumption performance and controllability than AC motors. In addition, the intake air blower 7 and the exhaust air blower 8 driven by a DC motor can have more air volume tables than the intake air blower 7 and the exhaust air blower 8 driven by an AC motor, and therefore the number of air volume steps can be increased.

[0036] Fig. 8 is a diagram showing an example of the display of the number of air volume stages in the specification change proposal system according to embodiment 1. In the example shown in Fig. 8, the heat exchanger ventilator 50 of the current specifications shows three static pressure-air volume lines, whereas the heat exchanger ventilator 50 of the new specifications shows thirteen static pressure-air volume lines, so that the building management company can easily recognize that the number of air volume stages will increase due to the specification change.

[0037] In addition, when changing from an AC motor to a DC motor, the air volume can be easily adjusted for each site by displaying the air volume steps in the static pressure air volume characteristic curve diagram of the AC motor and the static pressure air volume characteristic curve diagram of the DC motor. This allows the maintenance service provider to easily adjust the ventilation air volume of the heat exchange ventilator 50 to the ventilation air volume desired by the building management company.

[0038] Furthermore, even if pressure loss in the intake air duct and exhaust air duct is large and a booster fan must be used when using intake air blower 7 and exhaust air blower 8 equipped with an AC motor, using intake air blower 7 and exhaust air blower 8 equipped with a DC motor makes it possible to increase the ventilation air volume compared to using intake air blower 7 and exhaust air blower 8 equipped with an AC motor, eliminating the need to use a booster fan. In this case, not only is there no need to install a separate booster fan, but the ventilation air volume can be increased even if there is no space available to install a booster fan.

[0039] It should be noted that the model name identification unit 32 can identify the model name of the heat exchanger ventilator 50 of the current specifications, thereby estimating the manufacturing date of the heat exchanger ventilator 50, and the information creation notification unit 34 can estimate the product life of the heat exchanger ventilator 50 from the manufacturing date. By transmitting the estimated product life to the mobile terminal 20, the building management company can refer to the estimated value of the product life displayed on the display unit 21 and determine whether or not to replace the heat exchanger ventilator 50.

[0040] The specification change proposal system 100 according to the first embodiment can propose to the user replacement of the heat exchange ventilator 50 with specifications that allow replacement work to be performed without hoisting it down.

[0041] Embodiment 2 9 is a diagram showing the configuration of a specification change proposal system according to embodiment 2. The specification change proposal system 100 according to embodiment 2 differs from the specification change proposal system 100 according to embodiment 1 in that the mobile terminal 20 includes a receiver 24 and a position identification unit 25 that identifies the position of the heat exchange ventilator 50 based on the radio waves received by the receiver 24. The rest of the specification change proposal system is the same as the specification change proposal system 100 according to embodiment 1, so a duplicated description will be omitted.

[0042] In the absence of a building blueprint, it takes time and effort to identify where the heat exchange ventilator 50 is located. For example, it is necessary to perform tasks such as climbing a stepladder to open a ceiling inspection hatch and groping to locate the heat exchange ventilator 50. Even if the location of the heat exchange ventilator 50 is known, it may be difficult to visually confirm the heat exchange ventilator 50 from the ceiling inspection hatch due to a beam or pillar getting in the way. The heat exchange ventilator 50 that is the subject of the specification change proposal by the specification change proposal system 100 according to the second embodiment is equipped with a transmitter in the control board 9a, and the location information of the heat exchange ventilator 50 can be obtained by receiving radio waves transmitted from the transmitter with the mobile terminal 20. For example, a plurality of transmitters are mounted on the control board 9a of the heat exchange ventilator 50, and the location of the heat exchange ventilator 50 can be identified based on the time difference between the reception timing of radio waves from each of the plurality of transmitters at the receiver 24 of the mobile terminal 20. In addition, a transmitter that emits radio waves in a specific pattern can be installed on the control board 9a of the heat exchanger ventilation device 50, and the position of the heat exchanger ventilation device 50 can be identified based on the strength and pattern of the radio waves received by each of multiple antennas of the receiver 24 mounted on the mobile terminal 20.

[0043] The specification change proposal system 100 according to the second embodiment can identify the position of the heat exchanger ventilator 50 on the mobile terminal 20 based on radio waves transmitted from a transmitter of the heat exchanger ventilator 50, and therefore the maintenance service company can determine whether or not replacement work to the new specifications notified by the server 30 can be carried out based on the installation position of the heat exchanger ventilator 50. Therefore, the building maintenance company can confirm that replacement work can be carried out before proposing replacement to the new specifications to the building management company.

[0044] Embodiment 3 FIG. 10 is a diagram showing the configuration of a specification change proposal device according to the third embodiment. The specification change proposal device 70 according to the third embodiment includes a type name identification information generating unit 71, a type name identifying unit 72, a specification change possibility determining unit 73, an information creation notifying unit 74, a list storing unit 75, a display unit 76, and a display processing unit 77. The type name identification information generating unit 71 and the display unit 76 are the same as the type name identification information generating unit 22 and the display unit 21 provided in the mobile terminal 20 of the specification change proposal system 100 according to the first embodiment. The type name identifying unit 72, the specification change possibility determining unit 73, and the list storing unit 75 are the same as the type name identifying unit 32, the specification change possibility determining unit 33, and the list storing unit 35 provided in the server 30 of the specification change proposal system 100 according to the first embodiment. The information creation notifying unit 74 creates new specification information similar to the information creation notifying unit 34 of the specification change proposal system 100 according to the first embodiment, and outputs it to the display processing unit 77. The display processing unit 77 performs processing for displaying the new specification information on the display unit 76 .

[0045] The specification change proposing device 70 according to the third embodiment determines whether or not the specifications of the heat exchange ventilator 50 can be changed based on the type name identifying information generated in the type name identifying information generating unit 71, and if the specifications can be changed, can display information on the new specifications on the display unit 76. Therefore, the service and maintenance contractor who is the user of the specification change proposing device 70 can propose to the user the replacement of the heat exchange ventilator 50 with specifications that allow the replacement work to be performed by the specification change proposing device 70 alone without suspending it down, without communicating via a network.

[0046] Next, the hardware configurations of the server 30 of the specification change proposing system 100 according to the first and second embodiments and the specification change proposing device 70 according to the third embodiment will be described.

[0047] 11 is a diagram showing a hardware configuration of a server of the specification change proposal system according to the embodiments 1 and 2. The server 30 is realized by a computer system including a processor 91 that executes various processes, a memory 92 that is a main memory, a storage device 93 that stores information, and a communication interface 94.

[0048] The processor 91 may be a calculation means such as a calculation device, a microprocessor, a microcomputer, a CPU (Central Processing Unit), or a DSP (Digital Signal Processor). The memory 92 may be a non-volatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory), or an EEPROM (Electrically Erasable Programmable Read Only Memory). The storage device 93 stores a program for identifying the model name of the heat exchange ventilator 50 and determining whether or not the specifications of the heat exchange ventilator 50 can be changed.

[0049] In the above computer system, the processor 91 reads into the memory 92 programs stored in the storage device 93 and corresponding to the processing of each component, and executes these programs, thereby realizing the functions of the information acquisition unit 31, the type name identification unit 32, the specification change availability determination unit 33, and the information creation notification unit 34. The list storage unit 35 is realized by the storage device 93. The communication unit 36 ​​is realized by the communication interface 94. The memory 92 is also used as a temporary memory for each process executed by the processor 91. The programs executed by the processor 91 may be provided in a state stored in a storage medium, or may be provided via a network.

[0050] 12 is a diagram showing a hardware configuration of a specification change proposing device according to embodiment 3. A specification change proposing device 70 according to embodiment 3 is realized by a computer system including a processor 91 for executing various processes, a memory 92 as a main memory, a storage device 93 for storing information, and a display device 95.

[0051] In the above computer system, the processor 91 reads into the memory 92 programs stored in the storage device 93 and corresponding to the processing of each component, and executes these programs, thereby realizing the functions of the type name identification information generating unit 71, the type name identifying unit 72, the specification change availability determining unit 73, the information creation notifying unit 74, and the display processing unit 77. The list storage unit 75 is realized by the storage device 93. The display unit 76 is realized by the display device 95. The memory 92 is also used as a temporary memory for each process executed by the processor 91. The programs executed by the processor 91 may be provided in a state stored in a storage medium, or may be provided via a network.

[0052] In addition, in the first, second and third embodiments, examples have been shown in which the heat exchange ventilator 50 is replaced, but the product subject to the specification change may be any ventilator to which a duct is connected, and it is also possible for a ventilator that only ventilates without performing heat exchange to be the product subject to the specification change.

[0053] Furthermore, a function of humidifying or deodorizing the air to be supplied to the room by ventilation may be added to the heat exchange ventilator 50 described in the first and second embodiments. In this case, the humidifying capacity or deodorizing capacity of the heat exchange ventilator 50 may be displayed as the new specification information.

[0054] The configurations shown in the above embodiments are merely examples of the contents, and may be combined with other known technologies. Parts of the configurations may be omitted or modified without departing from the spirit of the invention.

[0055] Various aspects of the present disclosure are summarized below as appendices.

[0056] (Appendix 1) A mobile terminal and a server capable of communicating with the mobile terminal via a network, The server, an information acquisition unit that acquires model name identification information, which is information for identifying a model name of the ventilator, from the mobile terminal; a type name identification unit that identifies a type name of the ventilator based on the type name identification information acquired by the information acquisition unit; a specification change possibility determination unit that determines whether the ventilation device whose model name is identified by the model name identification unit can be changed to a new specification that realizes ventilation performance different from the ventilation performance of the current specification without lowering the device; and an information creation and notification unit that creates new specification information, which is information about the new specification, and transmits the information to the mobile terminal when the ventilation device whose model name is identified by the model name identification unit can be changed to the new specification, The mobile terminal includes: a type name identifying information generating unit that generates the type name identifying information; a type name identifying information transmitting unit that transmits the type name identifying information to the server; and a display unit for displaying the new specification information. (Appendix 2) The specification change proposal system described in Appendix 1, characterized in that when there are multiple new specifications to which the ventilation device whose model name has been identified by the model name identification unit can be changed, the information creation notification unit transmits the new specification information for each of the multiple new specifications to the mobile terminal. (Appendix 3) The specification change proposal system according to claim 1 or 2, wherein the type name identifying information is character information including at least a part of the type name of the ventilation device. (Appendix 4) The specification change proposal system according to any one of claims 1 to 3, characterized in that the model name identification information is image data. (Appendix 5) The mobile terminal includes: A receiver that receives radio waves emitted by a transmitter mounted on the ventilation device; 5. The specification change proposal system according to claim 1, further comprising a position estimation unit that estimates a position of the ventilation device based on the radio waves received by the receiver. (Appendix 6) The specification change proposal system according to any one of appendices 1 to 5, characterized in that the information creation notification unit transmits to the mobile terminal an estimated value of a product lifespan of the ventilation device, whose model name has been identified by the model name identification unit, under the current specifications. (Appendix 7) The specification change proposal system described in any one of Appendix 1 to Appendix 6, characterized in that the information creation notification unit transmits screen data to the mobile terminal for displaying on the display unit an ordering button for parts required to implement the specification change and a button for requesting a contractor to implement the specification change. (Appendix 8) The specification change proposal system according to any one of appendices 1 to 7, characterized in that the new specification information includes comparison information showing a comparison between the ventilation performance under the current specification and the ventilation performance under the new specification. (Appendix 9) The specification change proposal system according to claim 8, wherein the comparison information includes at least one of static pressure airflow characteristics, power consumption, and number of airflow levels. (Appendix 10) 8. The specification change proposal system according to any one of claims 1 to 7, further comprising a heat exchanger for exchanging heat between an exhaust air flow and an intake air flow. (Appendix 11) The specification change proposal system described in Appendix 10, characterized in that the new specification information includes comparison information showing a comparison between the ventilation performance under the current specification and the ventilation performance under the new specification. (Appendix 12) The specification change proposal system described in Appendix 11, characterized in that the comparison information includes at least one of static pressure airflow characteristics, power consumption, number of airflow stages, and heat exchange efficiency airflow characteristics. [Explanation of symbols]

[0057] 1 box body, 1a inspection hatch, 2 heat exchanger, 3 temperature sensor, 5a, 5b ridge, 6 inspection hatch cover, 7 intake air blower, 8 exhaust air blower, 9 control box, 9a control board, 10 lead wire, 11 filter, 12 remote controller, 13 geared motor, 14 damper, 20 mobile terminal, 21, 76 display unit, 22, 71 type name identification information generation unit, 23, 36 communication unit, 24 receiver, 25 position identification unit, 26 type name identification information transmission unit, 30 server, 31 information acquisition unit, 32, 72 type name identification unit, 33, 73 specification change possibility determination unit, 34, 74 information creation notification unit, 35, 75 list storage unit, 40 network, 50 heat exchange ventilation device, 51 outside air connection port, 52 intake air connection port, 53 Return air connection port, 54 exhaust air connection port, 70 specification change proposal device, 77 display processing unit, 91 processor, 92 memory, 93 storage device, 94 communication interface, 95 display device, 100 specification change proposal system.

Claims

1. A mobile terminal and a server capable of communicating with the mobile terminal via a network, The server, an information acquisition unit that acquires model name identification information, which is information for identifying a model name of the ventilator, from the mobile terminal; a type name identification unit that identifies a type name of the ventilator based on the type name identification information acquired by the information acquisition unit; a specification change possibility determination unit that determines whether the ventilation device whose model name is identified by the model name identification unit can be changed to a new specification that realizes ventilation performance different from the ventilation performance of the current specification without lowering the device; and an information creation and notification unit that creates new specification information, which is information about the new specification, and transmits the information to the mobile terminal when the ventilation device whose model name is identified by the model name identification unit can be changed to the new specification, The mobile terminal includes: a type name identifying information generating unit that generates the type name identifying information; a type name identifying information transmitting unit that transmits the type name identifying information to the server; and a display unit for displaying the new specification information.

2. The specification change proposal system according to claim 1, characterized in that, when there are multiple new specifications to which the ventilation device whose model name has been identified by the model name identification unit can be changed, the information creation notification unit transmits the new specification information for each of the multiple new specifications to the mobile terminal.

3. The specification change proposal system according to claim 1 , wherein the type name identifying information is character information including at least a part of the type name of the ventilation device.

4. 2. The specification change proposal system according to claim 1, wherein the model name specifying information is image data.

5. The mobile terminal includes: A receiver that receives radio waves emitted by a transmitter mounted on the ventilation device; 2. The specification change proposal system according to claim 1, further comprising a position estimation unit that estimates a position of the ventilation device based on the radio waves received by the receiver.

6. The specification change proposal system according to claim 1, characterized in that the information creation notification unit transmits to the mobile terminal an estimated value of the product life of the ventilation device, whose model name has been identified by the model name identification unit, under the current specifications.

7. The specification change proposal system described in claim 1, characterized in that the information creation notification unit transmits screen data to the mobile terminal to display on the display unit an ordering button for parts required to implement the specification change and a button to request a contractor to implement the specification change.

8. The specification change proposal system according to claim 1 , wherein the new specification information includes comparison information indicating a comparison between the ventilation performance in the current specification and the ventilation performance in the new specification.

9. 9. The specification change proposing system according to claim 8, wherein the comparison information includes at least one of static pressure air volume characteristics, power consumption, and the number of air volume levels.

10. 8. The specification change proposal system according to claim 1, further comprising a heat exchanger for exchanging heat between the exhaust air flow and the intake air flow.

11. The specification change proposal system according to claim 10, wherein the new specification information includes comparison information indicating a comparison between the ventilation performance in the current specification and the ventilation performance in the new specification.

12. 12. The specification change proposing system according to claim 11, wherein the comparison information includes at least one of static pressure air volume characteristics, power consumption, number of air volume stages, and heat exchange efficiency air volume characteristics.

13. A display unit for displaying information; a type name identification information generating unit that generates type name identification information, which is information for identifying the type name of the ventilator; a type name identification unit that identifies a type name of the ventilator based on the type name identification information; a specification change possibility determination unit that determines whether the ventilation device whose model name is identified by the model name identification unit can be changed to a new specification that realizes ventilation performance different from the ventilation performance of the current specification without lowering the ventilation device; an information creation and notification unit that creates new specification information, which is information about the new specification, when the ventilation device whose model name is identified by the model name identification unit can be changed to the new specification; and a display processing unit that displays the new specification information on the display unit when the ventilation device whose model name is identified by the model name identification unit can be changed to the new specifications.

Images