Patent Application
20190132227
The present disclosure relates to a communication adapter, and more particularly to a connection test run for a communication adapter used in a remote monitoring system for a hot water using facility (such as, for example, a water heater, a multi-water heating system, a reheating system for water in a bath, a filtering apparatus, or a hot water heating apparatus).
A system configured to remotely monitor or manage facility equipment through communication is known. For example, Japanese Patent Laying-Open No. 2010-38430 discloses a remote management system including a plurality of local management apparatuses configured to transmit prescribed data about connected facility equipment, and a central management apparatus configured to receive the prescribed data from the plurality of local management apparatuses through a communication line. Japanese Patent Laying-Open No. 2010-38430 describes a configuration in which, when a configuration of the facility equipment is changed by the update operation or the addition operation, a test run tool is communicatively connected to the local management apparatuses, and updated data and program for remote management about the facility equipment is transmitted from the test run tool to the local management apparatuses and is further transmitted from the local management apparatuses to the central management apparatus.
A remote monitoring system in which information is exchanged between a hot water using facility and a central management apparatus (such as a server) via a communication adapter requires a connection test run for establishing a communication connection via the communication adapter. An operator of the connection test run attends the connection test run until a notification that a result of communication connection checking is normal is provided. Particularly when the large number of hot water using facilities are connected, it is concerned that it takes a long time to provide a notification of the checking result.
The present disclosure has been made to solve the above-described problem, and an object of the present disclosure is to prevent communication connection checking in a connection test run from being prolonged in a communication adapter used in a remote monitoring system for a hot water using facility.
According to an aspect of the present disclosure, a communication adapter used in a remote monitoring system for a hot water using facility includes first and second communication circuits, first and second indicating devices, and a controller. The first communication circuit exchanges information with the hot water using facility by a first communication connection via a communication line. The second communication circuit exchanges information with a management apparatus of the remote monitoring system by a second communication connection via a communication network. The first indicating device indicates a state of communication connection by the first communication circuit. The second indicating device indicates a state of communication connection by the second communication circuit. The controller controls the first and second communication circuits and the first and second indicating devices. When the controller obtains a part of transmission information through the first communication circuit during a connection test run for the communication adapter, the controller causes the first indicating device to indicate that the first communication connection has been established, and transmits a first heartbeat notification to the management apparatus through the second communication circuit, the transmission information being information about the hot water using facility transmitted to the management apparatus through the connection test run. Furthermore, when a response to the first heartbeat notification is received from the management apparatus, the controller causes the second indicating device to indicate that the second communication connection has been established.
According to the above-described communication adapter, when a part of the transmission information is obtained by the first communication connection, the communication adapter can indicate establishment of the second communication connection between the communication adapter and the management apparatus by communication with the management apparatus using the heartbeat notification. Therefore, even when the transmission information increases in accordance with an increase in the number of the hot water using facilities, establishment of the first and second communication connections can be indicated without waiting for the entire transmission information to be normally transmitted to the management apparatus, and thus, it is possible to prevent communication connection checking in a connection test run from being prolonged.
The foregoing and other objects, features, aspects and advantages of the present disclosure will become more apparent from the following detailed description of the present disclosure when taken in conjunction with the accompanying drawings.
An embodiment of the present disclosure will be described in detail below with reference to the drawings, in which the same or corresponding portions are denoted by the same reference characters and description thereof will not be repeated in principle.
Referring to
Hot water supply apparatus 100 is, for example, a water heater, and one or a plurality of hot water supply apparatuses 100 is/are arranged. System controllers 115 are preferably arranged to control the plurality of hot water supply apparatuses 100. A maximum of m (m is a predetermined natural number) hot water supply apparatuses 100 can be connected to one system controller 115 by a communication line 51.
In the configuration example in
For example, communication adapter 40 can be placed outside, e.g., in the vicinity of an outer wall of a house, in a garage and the like, together with hot water supply apparatuses 100. Communication adapter 40 has the wireless communication function for communicating with a wireless LAN (Local Area Network) router 60 arranged inside in accordance with a prescribed communication protocol (such as, for example, IEEE 802.11n). For a communication connection to the Internet network (communication network), communication adapter 40 may be configured to communicate with a wired LAN router (not shown) in accordance with a prescribed communication protocol (such as, for example, IEEE 802.3 of the Ethernet standards), instead of communication with wireless LAN router 60. The details of communication adapter 40 will be described later.
Wireless LAN router 60 is connected to the Internet network (communication network). Wireless LAN router 60 can also function as a wireless LAN master unit so as to wirelessly connect a plurality of wireless LAN slave units. Communication adapter 40 can operate as a wireless LAN slave unit, and can be connected to the Internet via wireless LAN router 60 when a communication connection (wireless link) to wireless LAN router 60 is established.
Connection by communication lines 50 to 52 allows each hot water supply apparatus 100 to bidirectionally receive and transmit data from and to each of remote controller 105 and communication adapter 40 via system controller 110. Data can also be bidirectionally exchanged between remote controller 105 and communication adapter 40.
Since remote controller 105 is connected to the plurality of hot water supply apparatuses 100 via system controller 110, the operation of the plurality of hot water supply apparatuses 100 connected to system controller 110 can be controlled by common remote controller 105.
Two-wire communication lines can, for example, be used as communication lines 50 to 52. Hereinafter, communication lines 50 to 52 will also be referred to as “two-wire communication lines 50 to 52”. System controller 110 is configured to convert electric power supplied from an external power source 15 such as a commercial system into a power source voltage for an external apparatus and output the power source voltage to two-wire communication line 50, and thus, the operating power of remote controller 105 and communication adapter 40 can be supplied from system controller 110. In this case, the communication data can be superimposed on the power source voltage in two-wire communication lines 50 to 52.
Furthermore, in the remote monitoring system for the hot water using facility according to the present embodiment, a management center 20 and a support center 70 are connected to the communication network (typically, the Internet). Management center 20 includes a cloud server 21a and an application server 21b. Cloud server 21a and application server 21b are connected to be communicable with each other via the Internet network or a dedicated line, and can provide various services in cooperation with each other. Management center 20 corresponds to one example of “management apparatus”.
Referring to
Memory 27 includes, for example, a ROM (Read Only Memory) 27a that is a memory configured to store a program executed on CPU 25, a RAM (Random Access Memory) 27b that is a memory configured to serve as a work area when executing the program on CPU 25 or store a calculated value, and an HDD (Hard Disk Drive) 27c that is one example of a large-size storage device.
Server device 21 can be configured to have the function corresponding to a general computer. Server device 21 may further include an operation unit configured to accept an operation input.
Referring again to
Application server 21b manages multiple user accounts for multiple users in the respective households, the respective accommodations and the like, and accepts a login from an operation terminal such as a smartphone (not shown) owned by each user and provides various services to the operation terminal owned by each user.
Preferably, dedicated application software for using the services provided by application server 21b is installed onto the smartphone, such that the login operation and various operations after login can be performed using this application software. Alternatively, the services may also be provided on a Web basis, such that the login operation and the other operations can be performed using the appropriate Web browser.
Application server 21b can also be configured such that application server 21b provides only an application service for the user terminal such as the smartphone and the customer information including the user accounts is managed by another customer information management center. Alternatively, cloud server 21a and application server 21b may be configured by an integrated server device.
The services provided by cloud server 21a and application server 21b can be appropriately designed as needed. For example, the connected apparatus checking service, the operation information collecting and managing service, the error monitoring service, the maintenance monitoring service, the remote operation service and the like can be provided.
In accordance with the connected apparatus checking service, the apparatus type and the system configuration of hot water supply apparatus 100 of hot water supply system 10 connected to communication adapter 40 can be checked. Based on the information collected from hot water supply system 10 by communication adapter 40, the apparatus type and the system configuration can be determined on the server side.
In accordance with the operation information collecting and managing service, the operation information about hot water supply system 10 can be periodically collected from communication adapter 40 and managed every unit time (e.g., every one hour). Although the collected operation information is arbitrary, a unit time-based cumulative amount of supplied hot water or a unit time-based cumulative amount of fuel consumption can, for example, be collected. The collected operation information can also be used to create development materials based on big data analysis.
In accordance with the error monitoring service, when an error occurs in hot water supply system 10, the information about the error can be obtained from communication adapter 40 and notification of the error can be provided to a terminal 71 of support center 70 or an e-mail address of the user.
In accordance with the maintenance monitoring service, the operating condition of hot water supply system 10 can be monitored in real time at the time of repair of hot water supply system 10 and the like. Specifically, the operating condition of hot water supply system 10 connected to specified communication adapter 40 can be monitored in real time on a tablet terminal 80 and the like of an on-site operator communicatively connected to cloud server 21a.
Furthermore, in the remote monitoring system for the hot water using facility according to the present embodiment, the remote operation service for hot water supply system 10 can also be provided. For example, a prescribed operation of hot water supply system 10, such as, for example, an operation for switching on and off the hot water supply operation and an operation for changing the hot water supply set temperature, can be performed via the communication network (Internet), using terminal 71 of support center 70, tablet terminal 80 of the on-site operator, and the smartphone (not shown) owned by the user, and the like. In this case, the remote operation by the user can be performed by logging in to application server 21b from the smartphone (not shown) and the like. In addition, as a part of the services in the remote monitoring system, the operation information collected from communication adapter 40 can also be displayed to be viewable on the smartphone (not shown) and the like in the logged-in state.
The above-described remote monitoring service can be provided by data communication between management center 20 (hereinafter, also simply referred to as “server 20”) and hot water supply system 10 via communication adapter 40.
Referring to
Controller 41 can be configured by a microcomputer including a CPU 41a and an interface (I/F) 41b. Communication unit 42 is configured to be able to bidirectionally receive and transmit data from and to and thereby exchange information with system controller 110 and remote controller 105 via two-wire communication line 50 connected to connector 48. Communication unit 43 is configured to be able to bidirectionally receive and transmit data from and to and thereby exchange information with wireless LAN router 60 and the smartphone (not shown) by wireless communication via antenna 47. Power source circuit 44 is supplied with electric power from two-wire communication line 50 connected to connector 48 and generates an operating power source voltage for each component in communication adapter 40.
Memory 45 has a ROM 45a and a RAM 45b. For example, a program for controlling the operation of communication adapter 40 is stored in ROM 45a, and at the time of the startup process, controller 41 reads the program stored in ROM 45a and loads the program into RAM 45b. In the following description, controller 41 executes the program loaded into RAM 45b and controls the operation of communication adapter 40. Although memory 45 and controller 41 are shown as separate components in
Manual switch 49 is operated by the user, the operator or the like. In response to the operation of manual switch 49, a prescribed electric signal is input from manual switch 49 to controller 41. Thus, controller 41 can detect the operation of manual switch 49.
Using communication unit 43, communication adapter 40 can communicate with communication unit 26 of management center 20 via the communication network (Internet). In the remote monitoring system for the hot water using facility according to the present embodiment, remote monitoring is implemented by data communication between hot water supply apparatuses 100 and server 20 using communication adapter 40. Therefore, during construction of hot water supply system 10, a connection test run is performed to check whether or not a communication connection between hot water supply system 10 and server 20 using communication adapter 40 is established.
In the connection test run for the remote monitoring system shown in
Furthermore, in the configuration example in
Referring to
For example, LED 151 is turned on when the system connection is established, LED 152 is turned on when the LAN connection is established, and LED 153 is turned on when the server connection is established. That is, of LEDs 151 to 153, LED 151 corresponds to “first indicating device”, and LED 153 corresponds to “second indicating device”. When LEDs 151 to 153 are all turned on in the connection test run, communication connection checking can be completed. That is, the system connection corresponds to “first communication connection”, and the server connection corresponds to “second communication connection”. In the configuration example in
Each of indicating units 151 to 153 may be configured to indicate a state of each communication connection by the means other than the visual means. For example, each of indicating units 151 to 153 may be configured to vocally indicate establishment of each communication connection during the connection test run.
Referring to
When the connection test run is started up, controller 41 of communication adapter 40 requests connection information from system controller 110 of hot water supply system 10. The connection information forms a part of information that needs to be transmitted from hot water supply system 10 to server 20 during the connection test run (hereinafter, also referred to as “transmission information”). For example, the connection information includes information about the total number (N) of hot water supply apparatuses 100, system controllers 111 and 115, and remote controller 105 in hot water supply system 10. Hereinafter, hot water supply apparatuses 100, system controllers 111 and 115, and remote controller 105 are also collectively referred to as “connected apparatuses”. Alternatively, the connection information has information indicating the number of the connected apparatuses and a hierarchical structure of connection of the connected apparatuses. In the following description, the number of the connected apparatuses in hot water supply system 10 as a whole is N in total (N is an integer equal to or greater than 2).
System controller 111 outputs the connection information based on a connection situation of hot water supply apparatuses 100 and system controllers 115. The connection information is transmitted from system controller 111 to communication adapter 40 by communication via two-wire communication line 50.
Controller 41 determines whether or not obtainment of the requested connection information has been completed. This determination can be performed based on a signal received from system controller 111. When obtainment of the connection information has been completed, controller 41 confirms that the system connection via two-wire communication line 50 is established, and turns on, for example, LED 151 (
Based on the obtained connection information, controller 41 sequentially requests apparatus type data about each of hot water supply apparatuses 100, system controllers 111 and 115, and remote controller 105 (connected apparatuses) from hot water supply system 10. Similarly to the connection information, the apparatus type data is also transmitted from system controller 111 to communication unit 42 via two-wire communication line 50. The apparatus type data includes, for example, an apparatus type name of each connected apparatus, a version of a control program, an apparatus type code, an individual identification number and the like. Controller 41 continues communication with system controller 110 until obtainment of the apparatus type data about all of the N connected apparatuses indicated by the connection information is completed.
Separately from communication with system controller 110, it can be determined whether or not communication adapter 40 has been connected to wireless LAN router 60. The process of connection to wireless LAN router 60 is performed by the operator or the like of the connection test run inputting a predetermined password or operating the push switch, separately from reception and transmission from and to hot water supply system 10. The process of connection to wireless LAN router 60 can be performed using, for example, the WPS (Wi-Fi Protected Setup) function.
When connection to wireless LAN router 60 has been completed, controller 41 confirms that the LAN connection is established, and turns on, for example, LED 152 (
When obtainment of the apparatus type data about all of the N connected apparatuses has been completed after establishment of the LAN connection, controller 41 transmits configuration information about the N connected apparatuses to server 20. The configuration information includes the above-described connection information and apparatus type data.
When server 20 normally receives the configuration information from communication adapter 40, server 20 transmits a notification response to communication adapter 40. In response to reception of the notification response from server 20, communication adapter 40 confirms that the server connection is established, and turns on, for example, LED 153 (
Communication adapter 40 operates to perform periodic heartbeat communication with management center 20 when a certain period of time elapses from the end of the last communication with server 20. Therefore, after the server connection is established, a heartbeat notification is transmitted from communication adapter 40 to server 20 at a certain cycle Tcyc (e.g., approximately 3 to 5 minutes). As a result, even when data transmission from communication adapter 40 to server 20 is not performed for a long period of time, server 20 can confirm that communication with communication adapter 40 is established.
LEDs 151 to 153 are turned on as a result of the process in
Particularly, the number of hot water supply apparatuses 100, remote controllers 105 and system controllers 110 placed in hot water supply system 10 varies from placement site to placement site. Therefore, in the connection test run according to the comparative example, it is concerned that the time required from the start of the connection test run to indication of establishment of the server connection varies greatly from placement site to placement site.
Therefore, in the remote monitoring system according to the present embodiment, the connection test run is performed such that the time required until confirmation of establishment of the connection is not prolonged even when the number (N) of the connected apparatuses such as hot water supply apparatuses 100 in hot water supply system 10 increases.
Referring to
Furthermore, similarly to the comparative example in
Similarly to the comparative example in
When establishment of the system connection and the LAN connection is confirmed, controller 41 transmits a heartbeat notification to server 20, without waiting for obtainment of the apparatus type data about all of the N connected apparatuses as in the comparative example. The heartbeat notification in this case requests a response by a reply from server 20 (“with a request for a response”).
Generally, a fee for communication with a server is not charged in the case of inbound communication (communication received by the server), whereas the communication fee is charged in the case of outbound communication (communication transmitted by the server). Therefore, in order to reduce the communication fee, the heartbeat notification from communication adapter 40 does not normally request a response by a reply from server 20 (“without a request for a response”).
When server 20 normally receives the heartbeat notification (“with a request for a response”) from communication adapter 40, server 20 transmits a heartbeat notification response to communication adapter 40. In response to reception of the heartbeat notification response from server 20, communication adapter 40 confirms that the server connection is established, and turns on, for example, LED 153 (
Obtainment of the apparatus type data about the N connected apparatuses by controller 41 is performed separately from communication between communication adapter 40 and server 20.
Similarly to the comparative example, when obtainment of the apparatus type data about all of the N connected apparatuses has been completed, controller 41 transmits configuration information about the N connected apparatuses to server 20. When server 20 normally receives the configuration information from communication adapter 40, server 20 transmits a notification response to communication adapter 40. After that, a heartbeat notification (without a request for a response) is transmitted from communication adapter 40 to server 20 at a certain cycle Tcyc (e.g., approximately 3 to 5 minutes).
Display unit 28 of server 20 or terminal 71 of support center 70 can provide a display about hot water supply system 10 in which the communication connection has been established. The display contents are different between when establishment of the server connection is confirmed and when transmission of the configuration information to server 20 is completed. That is, when establishment of the server connection is confirmed, a display about the apparatus type data cannot be provided, and thus, establishment of connection to communication adapter 40 is only displayed. On the other hand, after transmission of the entire transmission information to server 20 is completed, the information about the apparatus type data can be displayed on display unit 28 or the like.
As described above, in the connection test run according to the present embodiment, establishment of the system connection, the LAN connection and the server connection can be indicated before the configuration information about the N connected apparatuses is obtained and transmission of the configuration information to server 20 is completed.
The time required for obtainment and transmission of the configuration information increases in accordance with an increase in the number (N) of the connected apparatuses. However, according to the connection test run in
As to transmission of the configuration information, the configuration information about all of the N connected apparatuses may be collectively transmitted to server 20, or the obtained configuration information may be divided into pieces and the divided pieces of the configuration information may be transmitted to server 20 after establishment of the server connection is confirmed. Regardless of whether the configuration information is transmitted collectively or in a divided manner, the connection test run is performed until the configuration information about the N connected apparatuses is transmitted to server 20.
Referring to
In the configuration example in
Therefore, also in the connection test run for communication adapter 40 applied to the configuration example in
In the case of hot water supply system 10 including the plurality of hot water supply apparatuses 100 without arranging system controller 110, one hot water supply apparatus 100 can be used as a master apparatus and information (including the transmission information in the connection test run) about all of hot water supply apparatuses 100 can be transmitted to communication adapter 40 via the master apparatus.
Furthermore, in the connection test run according to the present embodiment, as an example of a part of the transmission information in the connection test run, establishment of the system connection is indicated and the server connection is verified using heartbeat communication with server 20, when the connection information is obtained by communication adapter 40. However, heartbeat communication with server 20 can be performed in response to obtainment of arbitrary information (data) by communication adapter 40, as long as the information is a part of the transmission information.
Although the embodiment of the present disclosure has been described, it should be understood that the embodiment disclosed herein is illustrative and not limitative in any respect. The scope of the present disclosure is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2017-206932 | Oct 2017 | JP | national |
