CN112020017A - Communication system, communication device, non-transitory recording medium, and communication confirmation method - Google Patents

Communication system, communication device, non-transitory recording medium, and communication confirmation method Download PDF

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Publication number
CN112020017A
CN112020017A CN202010467112.3A CN202010467112A CN112020017A CN 112020017 A CN112020017 A CN 112020017A CN 202010467112 A CN202010467112 A CN 202010467112A CN 112020017 A CN112020017 A CN 112020017A
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China
Prior art keywords
communication
signal
confirmation
communication device
apparatuses
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CN202010467112.3A
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Chinese (zh)
Inventor
上村光央
菅原隆行
小熊勇佑
前场康太
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Publication of CN112020017A publication Critical patent/CN112020017A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention provides a communication system, a communication device, a non-transitory recording medium, and a communication confirmation method, wherein even if the number of communication devices increases, the time taken for communication confirmation is difficult to lengthen. A communication system (10) is provided with a plurality of communication devices (1) that transmit and receive radio signals using radio waves as a medium. The plurality of communication devices (1) execute a communication confirmation process for confirming whether or not wireless signals can be transmitted between any two communication devices (1) of the plurality of communication devices (1). In the communication confirmation processing, each of the plurality of communication apparatuses (1) transmits a communication confirmation signal, which is a wireless signal, to all the communication apparatuses (1) except for the communication apparatus (1) by broadcasting. In the communication confirmation process, the plurality of communication apparatuses (1) sequentially transmit communication confirmation signals.

Description

Communication system, communication device, non-transitory recording medium, and communication confirmation method
Technical Field
The invention relates to a communication system, a communication device, a non-transitory recording medium, and a communication confirmation method. More specifically, the present disclosure relates to a communication system including a plurality of communication apparatuses that transmit and receive wireless signals, a communication apparatus used in the communication system, a non-transitory recording medium, and a communication confirmation method between the plurality of communication apparatuses.
Background
Japanese laid-open patent application laid-open No. 2016-. The control device controls lighting and the like of the plurality of lighting devices by performing wireless communication with the plurality of lighting devices. The control device is a device capable of wireless communication with a plurality of lighting devices, and is, for example, a portable information terminal such as a remote controller or a smartphone.
Document 1 describes that the control device may be one of the plurality of lighting devices, and that the connection form between the control device and the plurality of lighting devices may be a full connection form.
Disclosure of Invention
Problems to be solved by the invention
In a communication system such as the lighting system described in document 1, when a plurality of communication apparatuses (lighting apparatuses) are connected by a full connection method, a process (communication confirmation) of confirming whether or not communication can be performed between all pairs of communication apparatuses is necessary. However, if the number of communication apparatuses increases, the time taken for communication confirmation may become longer.
An object of the present disclosure is to provide a communication system, a communication device, a non-transitory recording medium, and a communication confirmation method, in which even if the number of communication devices increases, the time required for communication confirmation is not easily increased.
Means for solving the problems
A communication system according to an aspect of the present disclosure includes a plurality of communication devices that transmit and receive radio signals using radio waves as a medium. The plurality of communication apparatuses execute a communication confirmation process of confirming whether or not the wireless signal can be transmitted between any two of the plurality of communication apparatuses. In the communication confirmation processing, each of the plurality of communication apparatuses transmits a communication confirmation signal, which is the wireless signal, to all but its own communication apparatuses by broadcasting. In the communication confirmation processing, the plurality of communication apparatuses sequentially transmit the communication confirmation signal.
The communication device according to one aspect of the present disclosure is used as one of the plurality of communication devices of the communication system.
A non-transitory recording medium according to an aspect of the present disclosure records a program for causing one or more processors capable of transmitting and receiving radio signals using radio waves as a medium to execute the communication confirmation processing of the communication device when the program is executed by the processors.
A communication confirmation method according to an aspect of the present disclosure is a communication confirmation method executed by a plurality of communication apparatuses that transmit and receive radio signals using radio waves as a medium. In the communication confirmation process for confirming whether or not the wireless signal can be transmitted between any two communication apparatuses among the plurality of communication apparatuses, each of the plurality of communication apparatuses transmits a communication confirmation signal, which is the wireless signal, to all of the plurality of communication apparatuses except for itself by broadcasting, and the plurality of communication apparatuses sequentially transmit the communication confirmation signals.
ADVANTAGEOUS EFFECTS OF INVENTION
The present disclosure is advantageous in that even if the number of communication apparatuses increases, it is difficult to increase the time taken for communication confirmation.
Drawings
Fig. 1 is a schematic diagram showing a configuration of a communication system according to an embodiment.
Fig. 2 is a schematic diagram showing the structure of a building in which the above communication system is installed.
Fig. 3 is a block diagram showing a configuration of a communication device used in the above communication system.
Fig. 4 is a sequence diagram showing a communication confirmation operation in the above communication system.
Fig. 5 is a sequence diagram showing a communication confirmation operation in the above communication system, and is a continuation of fig. 4.
Fig. 6 is a sequence diagram showing a communication confirmation operation in the communication system according to modification 2.
Fig. 7 is a sequence diagram showing a communication confirmation operation in the above communication system, and is a continuation of fig. 6.
Fig. 8 is a sequence diagram showing a communication confirmation operation in the above communication system, and is a continuation of fig. 7.
Description of the reference numerals
1: a communication device; 5: a load; 7: a communication terminal device (information terminal); 10: a communication system.
Detailed Description
Hereinafter, a communication device and a communication system including a plurality of communication devices according to the present embodiment will be described with reference to the drawings.
(1) Summary of the invention
As shown in fig. 1, a communication system 10 of the present embodiment includes a plurality of (here, four) communication devices 101 to 104. Each of the plurality of communication devices 101 to 104 is configured to transmit and receive a radio signal using a radio wave as a medium. In the following, each of the plurality of communication devices 101 to 104 is referred to as a communication device 1 without particularly distinguishing the plurality of communication devices 101 to 104. Further, although the communication system 10 of the present embodiment includes four communication devices 1, the number of the communication devices 1 is not limited to four, and may be two or three, or may be five or more.
The plurality of communication devices 101 to 104 are configured to execute a communication confirmation process. The communication confirmation process is a process of confirming whether or not the wireless signal can be transmitted between any two communication apparatuses among the plurality of communication apparatuses 101 to 104. In other words, the communication confirmation process is a process of confirming whether or not all combinations of two communication apparatuses among the plurality of communication apparatuses 101 to 104 can communicate with each other via a wireless signal.
In the communication confirmation process, each of the plurality of communication apparatuses 101 to 104 confirms whether or not the wireless signal from all of the plurality of communication apparatuses 101 to 104 except for the communication apparatus (hereinafter, referred to as "remaining communication apparatuses") can be received. More specifically, in the communication confirmation process, each of the plurality of communication apparatuses 101 to 104 transmits a wireless signal. The communication device 101 checks whether or not it can receive a wireless signal from each of the communication devices 102 to 104. The communication device 102 checks whether or not it can receive a radio signal from each of the communication devices 101, 103, and 104. The communication device 103 confirms whether or not it can receive a wireless signal from each of the communication devices 101, 102, and 104. The communication device 104 confirms whether or not it can receive a wireless signal from each of the communication devices 101 to 103. Hereinafter, the wireless signal transmitted from each of the plurality of communication apparatuses 101 to 104 in the communication confirmation process is also referred to as a "communication confirmation signal".
Each of the plurality of communication apparatuses 101 to 104 transmits a communication confirmation signal to the remaining communication apparatuses by broadcasting in the communication confirmation process. That is, the communication device 101 transmits a communication confirmation signal to the communication devices 102 to 104 by broadcasting. Further, the communication device 102 transmits a communication confirmation signal to the communication devices 101, 103, and 104 by broadcasting. The communication device 103 transmits a communication confirmation signal to the communication devices 101, 102, and 104 by broadcasting. The communication device 104 transmits a communication confirmation signal to the communication devices 101 to 103 by broadcasting. The plurality of communication devices 101 to 104 sequentially transmit communication confirmation signals. The plurality of communication devices 101 to 104 transmit communication confirmation signals at mutually different timings. In other words, communication is performed between the plurality of communication devices 101 to 104 in order in which each of the plurality of communication devices 101 to 104 transmits the communication confirmation signal to all the communication devices 1 except for the communication device itself by broadcasting.
Each of the plurality of communication apparatuses 101 to 104 performs communication confirmation with the communication apparatus that transmitted the communication confirmation signal, based on the reception status of the communication confirmation signal transmitted from an arbitrary communication apparatus other than itself (hereinafter, also referred to as "other communication apparatus"). In the communication confirmation process, if the two communication apparatuses 1 can transmit and receive the communication confirmation signal in both directions, it can be said that the wireless signal can be transmitted between the two communication apparatuses 1.
In the communication system 10 of the present embodiment, as described above, each of the plurality of communication apparatuses 101 to 104 transmits a communication confirmation signal by broadcasting in the communication confirmation process. Therefore, the communication system 10 according to the present embodiment has an advantage that it is difficult to lengthen the time taken for communication confirmation even if the number of communication apparatuses increases, as compared with a case where each of the plurality of communication apparatuses 101 to 104 transmits a communication confirmation signal by unicast.
(2) Structure of the product
The communication device 1 according to the present embodiment and the communication system 10 including a plurality of communication devices 1 will be described in more detail below.
In the present embodiment, as shown in fig. 2, a case where the communication system 10 is used in a house 200 (single house) will be described as an example. However, the communication system 10 is not limited to this example, and may be used in buildings such as residences , offices, shops, and factories.
As shown in fig. 1, a communication system 10 of the present embodiment includes a plurality of communication devices 101 to 104 and a communication terminal 7. However, the communication terminal 7 may not be included in the components of the communication system 10.
The plurality of communication devices 101 to 104 operate by receiving power supply from a power supply (commercial ac power supply) 9. Each of the plurality of communication devices 101 to 104 corresponds to one or more (here, one) loads 5. Each of the plurality of communication devices 101 to 104 controls the operation of the load 5 corresponding to the communication device. Each of the plurality of communication devices 101 to 104 is inserted into a power supply path from the power supply 9 to the corresponding load 5, and controls the load 5 by turning on and off the power supply from the power supply 9 to the load 5. In short, each of the plurality of communication devices 101 to 104 is a load control device that controls the operation of the load 5 individually corresponding to the communication device. Thereby, the load 5 can be controlled by the communication device 1 included in the communication system 10.
Here, each communication device 1 (load control device) has an appearance similar to a general wall switch. The communication device 1 is used in a state of being mounted on a wall in a house. The basic usage of the communication device 1 is the same as that of a general wall switch, and a person directly operates an operation unit (a touch sensor unit 25 described later) of the communication device 1 to turn on or off power supply from the power supply 9 to the load 5 corresponding to the communication device 1.
Loads 5 to be controlled by the plurality of communication devices 101 to 104 are installed in a plurality of rooms in the house 200. Each communication device 1 (load control device) is installed in a room identical to or adjacent to a room in which the load 5 to be controlled is installed. Here, as shown in fig. 2, in a house 200, a plurality of (four) loads 5 are provided so as to correspond one-to-one to a plurality of (here, four) communication devices 101 to 104. Hereinafter, when a plurality of loads 5 are distinguished, the loads 5 may be distinguished as loads 51, 52, 53, and 54. Load 51 corresponds to communication device 101, load 52 corresponds to communication device 102, load 53 corresponds to communication device 103, and load 54 corresponds to communication device 104.
In the present embodiment, a lighting load (lighting fixture) is exemplified as the load 5 to be controlled by the communication device 1 (load control device). Therefore, each communication device 1 can perform switching control of on/off of the load 5, dimming control of the load 5, and the like by turning on/off the power supply from the power supply 9 to the corresponding load 5. However, the load 5 to be controlled by the communication device 1 is not limited to the lighting load. The load 5 to be controlled by the communication device 1 may include a load other than a lighting load such as a ventilation fan, for example.
As described above, the plurality of communication devices 101 to 104 are configured to be able to communicate with each other using radio signals using radio waves as a medium. The unique identification information is assigned in advance to each of the plurality of communication devices 101 to 104. Each communication device 1 transmits a radio signal by including identification information assigned to the communication device 1 of the other party in the radio signal, and transmits the radio signal to the desired communication device 1.
The communication system 10 according to the present embodiment is configured such that each communication device 1 and the communication terminal unit 7 can communicate with each other by using a radio signal.
The communication terminal 7 may be provided with a function as a user interface so as to be able to communicate with the communication device 1. The communication terminal 7 is a general-purpose information terminal such as a smartphone, a tablet terminal (tablet computer), and a notebook personal computer. The communication between the communication device 1 and the communication terminal 7 is wireless communication. In fig. 2, the path of wireless communication is schematically represented by a dashed arrow.
The communication terminal 7 realizes a function of outputting a radio signal including a control command to any one of the plurality of communication devices 1 by executing an application program for load control. The control command includes a command for causing a desired communication device 1 among the plurality of communication devices 1 to control the load 5 corresponding to the communication device 1. Hereinafter, the radio signal including the control command is also referred to as a "control signal".
The communication terminal device 7 of the present embodiment has a function of remotely controlling any load 5 among the plurality of loads 5 by transmitting a control signal. That is, the communication terminal 7 transmits a control signal to any one of the plurality of communication devices 101 to 104, and controls the communication device 1 corresponding to the desired load 5 via the communication device 1, thereby indirectly controlling any one of the loads 5.
The communication terminal 7 realizes a function of outputting a radio signal including a confirmation start command to any one of the plurality of communication apparatuses 1 by executing an application program for controlling the communication confirmation processing. The confirmation start instruction includes an instruction for causing the plurality of communication apparatuses 1 to start the communication confirmation processing. Hereinafter, the radio signal including the confirmation start command is also referred to as a "start command signal". The communication terminal device 7 of the present embodiment transmits a start command signal to an arbitrary communication device 1, thereby causing the plurality of communication devices 101 to 104 to execute a communication confirmation process.
Next, a specific configuration of the communication device 1 will be described with reference to fig. 3.
The communication device 1 includes a communication unit 11, a switching element 12, a control unit 13, a power supply circuit 14, a touch sensor unit 15, and a storage unit 16.
The communication unit 11 communicates with the other communication device 1 (more specifically, the communication unit 11 of the other communication device 1) and the communication terminal 7 by using a radio signal using a radio wave as a medium. The communication method of the communication unit 11 is, for example, wireless communication such as Bluetooth (registered trademark).
The communication unit 11 is preferably formed of an integrated circuit integrated on one chip, such as a signal processing circuit, a transmission circuit, a reception circuit, a frequency synthesizer circuit, and an antenna changeover switch. The signal processing circuit performs signal processing such as encoding of a transmission frame (baseband signal) and decoding of a reception frame. The transmission circuit modulates a carrier signal (for example, frequency shift keying < FSK > modulation) with a transmission frame encoded by the signal processing circuit. The receiving circuit is configured to demodulate a reception frame from a signal received via the antenna. The frequency synthesizer circuit generates a carrier signal. The antenna changeover switch switches and electrically connects the antenna to the transmission circuit and the reception circuit.
The switching element 12 is electrically connected in series with the series circuit of the power source 9 and the load 5. That is, the switching element 12 is inserted into a power supply path from the power supply 9 to the load 5, and turns on/off the power supply from the power supply 9 to the load 5. Here, the switching element 12 is preferably configured by a semiconductor switching element having no mechanical (mechanical) contact, for example, a triac or the like.
The power supply circuit 14 is configured to receive power supply from the power supply 9 and generate operating power supply voltages for the respective units of the communication device 1. Note that the AC voltage from the power supply 9 may be directly input to the power supply circuit 14, or the AC voltage from the power supply 9 may be input to the power supply circuit 14 in a state of being converted into a DC voltage by an AC/DC conversion device.
The touch sensor unit 15 is disposed on, for example, the front surface of the housing of the communication device 1, and detects a human hand touching the front surface (operation surface) to receive an operation input to the operation surface by the user. The touch sensor section 15 measures electrostatic capacitances generated between the plurality of electrodes and the ground, and determines that the human body (finger) approaches each electrode, that is, determines that a touch operation has been performed, when the measured value of the electrostatic capacitance changes beyond a predetermined threshold value. The touch sensor section 15 outputs an operation signal indicating that a touch operation is performed to the control section 13.
The storage unit 16 is preferably formed of a rewritable nonvolatile semiconductor memory such as a flash memory. The storage unit 16 reads and writes various data by the control unit 13. The storage unit 16 stores identification information of the communication device 1 in which the storage unit 16 is provided. The storage unit 16 stores identification information of a plurality of communication apparatuses 1 in the communication system 10 to which the communication apparatus 1 provided with the storage unit 16 belongs. As the identification information, for example, a MAC (Media Access Control) address is used.
Further, the storage unit 16 stores a plurality of standby times in association with identification information of the plurality of communication devices 1 of the communication system 10, respectively. That is, the storage unit 16 stores information on the standby time as many as the number of the plurality of communication apparatuses 1 belonging to the communication system 10. The standby time is a time corresponding to a timer time of a third timer described later.
The control unit 13 is electrically connected to the communication unit 11, the switching element 12, the power supply circuit 14, the touch sensor unit 15, and the storage unit 16. The control unit 13 is preferably constituted by a microcontroller, for example.
The control unit 13 has a function of controlling the operation of the switching element 12. The control unit 13 has a function of controlling the communication unit 11, a function of controlling the touch sensor unit 15, and a function of reading and writing data in the storage unit 16. The control unit 13 is configured to implement the above-described functions by executing a program stored in the memory. The program may be written in advance in the memory, or may be provided via an electric communication line or recorded in a recording medium such as a memory card.
The control unit 13 has a normal operation mode and a communication confirmation mode as operation modes.
In the normal operation mode, the control unit 13 controls the switching element 12 based on an operation signal from the touch sensor unit 15 and a control command included in a control signal received by the communication unit 11. The communication partner of the communication unit 11 that receives the control signal is any one of the other communication device 1 and the communication terminal 7. The control unit 13 has at least a function of turning on and off the switching element 12. In the present embodiment, the control unit 13 is configured to be able to control the phase angle of the switching element 12 so as to be able to perform not only switching control of turning on/off the load 5, which is constituted by the lighting load, but also dimming control of the load 5.
The communication confirmation mode is an operation mode for confirming whether or not the bidirectional wireless signal can be transmitted (transmitted and received) to and from another communication apparatus 1.
In the communication confirmation mode, the control unit 13 transmits a communication confirmation signal (wireless signal) at a timing not overlapping with the communication device 1 other than the communication device 1 in which the control unit is installed among the plurality of communication devices 101 to 104. Therefore, the control unit 13 functions as a first timer, a second timer, and a third timer.
The first timer is a timer (synchronization timer) for synchronizing with the remaining communication devices 1 among the plurality of communication devices 101 to 104. The communication device 1 starts the measurement of the first timer at a time point when the start notification signal is transmitted to the remaining communication devices 1 or at a time point when the start notification signal is received from another communication device 1. The start notification signal is a radio signal including confirmation of the start notification. The confirmation start notification is information for notifying the start of the communication confirmation process to the remaining communication apparatuses 1 when a start command signal is received from the communication terminal 7 by a certain communication apparatus 1.
The time counted by the first timer is set to be the same among the plurality of communication devices 101 to 104. Therefore, the plurality of communication devices 101 to 104 are synchronized by the end of the timing of the first timer. When the first timer is timed out, the control unit 13 switches the operation mode from the normal operation mode to the communication confirmation mode.
The second timer is a timer (communication confirmation timer) for determining a time at which the control unit 13 ends the operation in the communication confirmation mode. When the first timer is finished, the control unit 13 starts the second timer. That is, the control unit 13 of the plurality of communication devices 101 to 104 starts the second timer substantially at the same time. When the second timer is timed out, the control unit 13 switches the operation mode from the communication confirmation mode to the normal operation mode. In the communication system 10 of the present embodiment, when the second timer is timed out, the control unit 13 switches the operation mode from the communication confirmation mode to the normal operation mode after transmitting a result signal (described later).
The time counted by the second timer is set based on the identification information previously assigned to the communication device 1. The second timer is different in timing time among the plurality of communication devices 101 to 104. Therefore, the timing of the second timer ending is different among the plurality of communication devices 101 to 104.
The third timer is a timer (time slot timer) for determining a time point at which the communication unit 11 transmits the communication confirmation signal (wireless signal). When the first timer is finished, the control unit 13 starts the third timer. That is, the control unit 13 of the plurality of communication devices 101 to 104 starts the counting of the third timer at substantially the same time.
When the third timer has timed out, the control unit 13 causes the communication unit 11 to transmit a communication confirmation signal. As described above, the control unit 13 causes the communication unit 11 to transmit the communication confirmation signal by broadcasting. That is, the destination of the communication confirmation signal is all the remaining communication apparatuses 1 except the communication apparatus 1 of the transmission source among the plurality of communication apparatuses 1.
As described above, the timer time (standby time) of the third timer is set based on the identification information given to each communication device 1. That is, the time counted by the third timer is different among the plurality of communication devices 101 to 104. Therefore, the timing at which the third timer finishes counting is different among the plurality of communication devices 101 to 104, and the timing at which the plurality of communication devices 101 to 104 transmit the communication confirmation signal is different from each other.
In short, individual identification information is assigned in advance to the plurality of communication devices 101 to 104. In the communication confirmation process, the plurality of communication apparatuses 101 to 104 transmit communication confirmation signals at predetermined time intervals in an order determined based on the assigned identification information. Thus, the plurality of communication devices 101 to 104 can transmit the communication confirmation signal at different timings.
The third timer is set to have a shorter time than any of the second timers of the plurality of communication devices 101 to 104. That is, the second timer of each communication device 1 ends the counting after the counting of the third timers of all the communication devices 1 is ended. Therefore, each communication device 1 ends the communication confirmation mode after all of the plurality of communication devices 1 transmit the communication confirmation signal (after a lapse of a predetermined time during which all of the plurality of communication devices 1 transmit the communication confirmation signal).
As described above, each of the plurality of communication devices 101 to 104 also stores the identification information of the other communication device 1 in the storage unit 16. Therefore, each of the plurality of communication apparatuses 101 to 104 also grasps the time point (the standby time of the other communication apparatus 1) at which the other communication apparatus 1 transmits the communication confirmation signal. The control unit 13 electrically connects the antenna of the communication unit 11 to the receiving circuit at least at the time point when the other communication device 1 transmits the communication confirmation signal, and waits for receiving the communication confirmation signal from the other communication device 1.
Upon receiving the communication confirmation signal from another communication device 1, the control unit 13 compares the received signal strength of the received communication confirmation signal with a received signal strength reference value that is a reference of the received signal strength. The control unit 13 of the communication device 1 determines the communication state with the communication device 1 that transmitted the communication confirmation signal based on the result of comparing the received signal strength of the communication confirmation signal with the received signal strength reference value. In short, in the communication confirmation process, each of the plurality of communication apparatuses 101 to 104 determines the communication status with the other communication apparatus 1 based on the result of comparison between the received signal strength of the communication confirmation signal from the other communication apparatus 1 and the received signal strength reference value. Thus, each communication device 1 can determine not only whether or not it can receive the communication confirmation signal, but also the reception level when it can receive the communication confirmation signal.
The control unit 13 determines whether or not the received signal strength of the communication confirmation signal exceeds a received signal strength reference value, for example. When the communication confirmation signal is not received within a predetermined time period after the communication device 1 transmits the communication confirmation signal, the control unit 13 determines that the communication confirmation signal has not been received.
That is, here, the control unit 13 of each communication device 1 selects any one of "no reception", "reception possible but smaller than the received signal strength reference value", and "reception possible and equal to or larger than the received signal strength reference value" as the determination result of the communication state with the other communication device 1.
Here, the received signal strength reference value is included in the start notification signal transmitted from the communication device 1 that has received the start instruction signal from the communication terminal unit 7. That is, the received signal strength reference value is shared by the plurality of communication apparatuses 101 to 104 when the communication confirmation processing is started. In short, at least one communication device 1 among the plurality of communication devices 101 to 104 transmits a communication confirmation signal including information indicating the reference value of the received signal strength. This makes it possible to set a received signal strength reference value every time the communication confirmation process is performed. In addition, compared to the case where information on the value of the received signal strength is transmitted, information to be included in the resultant signal can be reduced.
As described above, when the second timer is timed out, the control unit 13 switches the operation mode from the communication confirmation mode to the normal operation mode after transmitting the result signal. The result signal is a radio signal transmitted to the communication device 1 that has transmitted the start notification signal, and is a radio signal including information of the determination result of the communication state with another communication device 1. As described above, since the time counted by the second timer differs among the plurality of communication devices 101 to 104, the result signal is transmitted at mutually different timings from the communication device 1 other than the communication device which has transmitted the start notification signal among the plurality of communication devices 101 to 104.
The communication device 1 that has received the result signal transmits information indicating the result of the communication confirmation process to the communication terminal unit 7. That is, at least one of the plurality of communication apparatuses (here, the communication apparatus 1 which has received the start command signal from the communication terminal device 7) transmits the result of the communication confirmation processing to the external information terminal (the communication terminal device 7) after the communication confirmation processing is completed. Thereby, the user of the communication terminal device 7 can know the result of the communication confirmation processing.
The communication terminal 7 may display the result of the communication confirmation processing in the form of a list, for example, on a display unit provided in the communication terminal 7 or an external display device.
(3) Movement of
Next, the operation of the communication system 10 according to the present embodiment will be described. Hereinafter, a description will be given of each of the "basic operation" for controlling the load 5 by the communication device 1 or the communication terminal 7 and the "communication confirmation operation" required for the basic operation.
(3.1) basic operation
When the touch sensor section 15 of any of the communication devices 101 to 104 is touched, an operation signal is output from the touch sensor section 15 to the control section 13. Upon receiving an operation signal from the touch sensor unit 15, the control unit 13 changes the control state of the corresponding load 5 by controlling the switching element 12 in accordance with the operation signal. For example, when the touch sensor unit 15 of the communication device 101 is touched, the switch control unit 131 of the communication device 101 changes the control state of the load 51. For example, when the operation signal is received when the load 51 is turned on, the control unit 13 of the communication device 101 turns off the switching element 12 to turn off the load 51. Alternatively, when the operation signal is received when the load 51 is turned off, the control unit 13 of the communication device 101 turns on the switching element 12 to light the load 51.
When the communication unit 11 of any of the communication devices 101 to 104 receives a control signal (a wireless signal including a control command) from the communication terminal 7, the communication unit 11 outputs the control command to the control unit 13. The control command includes identification information of the communication device 1 to be controlled. When the identification information included in the control command matches the identification information of the communication device 1 in which the control unit 13 is provided, the control unit 13 controls the switching element 12 in accordance with the control command to change the control state of the load 5. On the other hand, when the identification information included in the control command does not match the identification information of the communication device 1 in which the control unit 13 is provided, the control unit 13 causes the communication unit 11 to transmit (transmit) the control signal to the communication device 1 having the identification information included in the control command.
As described above, in the communication system 10 according to the present embodiment, the load 5 can be controlled not only by a direct operation with respect to the corresponding communication device 1 but also by transmitting a control signal from the communication terminal 7 to an arbitrary communication device 1.
(3.2) communication confirmation action
As described above, when the plurality of communication devices 101 to 104 receive the control signal from the communication terminal 7, the control signal (wireless signal) is transmitted (transmitted) to the communication device 1 corresponding to the load 5 to be controlled in order to change the state of the load 5 (the load 5 to be controlled) specified by the control signal. Therefore, the plurality of communication devices 101 to 104 need to be able to transmit wireless signals to each other.
Next, a process (communication confirmation process) of confirming whether or not transmission of a radio signal is possible between two arbitrary communication apparatuses 1 among the plurality of communication apparatuses 101 to 104 will be described with reference to the sequence diagrams of fig. 4 and 5. The communication system 10 includes four communication devices 101 to 104 as a plurality of communication devices 101 to 104. In fig. 4 and 5, the first timer, the second timer, and the third timer are denoted by "TM 1", "TM 2", and "TM 3", respectively.
First, the user carrying the communication terminal device 7 transmits a start command signal (a radio signal including a confirmation start command for starting the communication confirmation process) to any one of the plurality of communication apparatuses 101 to 104 (S101). Hereinafter, among the plurality of (four) communication devices 101 to 104, the communication device 1 that has received the start command signal from the communication terminal unit 7 is also referred to as a "first communication device", and the remaining communication devices 1 are also referred to as "second, third, and fourth communication devices". Here, the communication devices 1 other than the first communication device among the four communication devices 101 to 104 are referred to as a second communication device, a third communication device, and a fourth communication device in order of increasing the counted time of the third timer determined based on the identification information assigned to each communication device 1.
Hereinafter, for convenience of description, the communication device 101 is referred to as a first communication device (hereinafter, also referred to as "first communication device 101"). Note that the communication device 102 is a second communication device (hereinafter also referred to as "second communication device 102"), the communication device 103 is a third communication device (hereinafter also referred to as "third communication device 103"), and the communication device 104 is a fourth communication device (hereinafter also referred to as "fourth communication device 104").
The first communication device 101 that has received the start command signal from the communication terminal 7 starts the communication confirmation process, and transmits a start notification signal (wireless signal) to the remaining communication devices 1 (the second communication device 102 to the fourth communication device 104) by broadcasting (S102). That is, the plurality of communication devices 101 to 104 start the communication confirmation process in response to an instruction from an external information terminal (communication terminal device 7). The start notification signal is received by the second to fourth communication devices 102 to 104.
Here, the start notification signal is a wireless signal transmitted from the communication device 1 in the communication confirmation process, and is also a communication confirmation signal. As described above, the start notification signal includes a confirmation start notification for notifying the remaining communication apparatuses that the first communication apparatus 101 has started the communication confirmation process. As described above, the start notification signal includes the received signal strength reference value. When the first communication device 101 transmits the start notification signal, it starts the counting of the first timer (S103).
When each of the second to fourth communication devices 102 to 104 receives the start notification signal, the received signal strength of the received start notification signal (communication confirmation signal) is compared with a received signal strength reference value included in the start notification signal. Each of the second to fourth communication devices 102 to 104 determines a communication status with the first communication device 101 based on a result of comparison between the received signal strength reference value and the received signal strength of the received start notification signal (S104 to S106).
Upon receiving the start notification signal, the second to fourth communication devices 102 to 104 start counting the first timer (S107 to S109).
When a predetermined time elapses, each of the first to fourth communication devices 101 to 104 ends the counting of the first timer (S110 to S113). As described above, the first to fourth communication devices 101 to 104 can synchronize the first to fourth communication devices 101 to 104 by counting the time of the first timer, respectively.
When the first timer is counted by the first communication device 101 to the fourth communication device 104, the operation mode of the control unit 13 is switched from the normal operation mode to the communication confirmation mode, and the counting of the second timer is started (S114 to S117). Further, for each of the second to fourth communication devices 102 to 104 (communication devices other than the communication device that transmitted the start notification signal), when the measurement of the first timer is ended, the measurement of the third timer is started (S118 to S120).
As described above, the timer time (standby time) of the third timer is determined based on the identification information assigned to the communication device 1. Therefore, the third timer of the communication device (here, the second communication device 102) having the shortest standby time determined based on the identification information ends the measurement at the earliest (S121). When the third timer counts up, the second communication device 102 transmits a radio signal (communication confirmation signal) to the remaining communication devices (the first communication device 101, the third communication device 103, and the fourth communication device 104) by broadcasting (S122).
When each of the first communication device 101, the third communication device 103, and the fourth communication device 104 receives the communication confirmation signal from the second communication device 102, the received signal strength of the communication confirmation signal received from the second communication device 102 is compared with the received signal strength reference value included in the start notification signal. Each of the first communication device 101, the third communication device 103, and the fourth communication device 104 determines a communication status with the second communication device 102 based on a result of comparison between the received signal strength of the received communication confirmation signal and the received signal strength reference value (S123 to S125). Each of the first communication apparatus 101, the third communication apparatus 103, and the fourth communication apparatus 104 determines that the communication confirmation signal from the second communication apparatus 102 has not been received when the communication confirmation signal has not been received within a predetermined time period after the communication confirmation signal has been transmitted by the second communication apparatus 102.
Next, of the second to fourth communication devices 102 to 104, the third timer of the communication device having the second shortest standby time (here, the third communication device 103) determined based on the identification information ends the counting (S126). When the third timer counts up, the third communication device 103 transmits a radio signal (communication confirmation signal) to the remaining communication devices (the first communication device 101, the second communication device 102, and the fourth communication device 104) by broadcasting (S127).
When each of the first communication device 101, the second communication device 102, and the fourth communication device 104 receives the communication confirmation signal from the third communication device 103, the received signal strength of the communication confirmation signal received from the third communication device 103 is compared with the received signal strength reference value included in the start notification signal. Each of the first communication device 101, the second communication device 102, and the fourth communication device 104 determines a communication status with the third communication device 103 based on a result of comparison between the received signal strength of the received communication confirmation signal and the received signal strength reference value (S128 to S130). Each of the first communication apparatus 101, the second communication apparatus 102, and the fourth communication apparatus 104 determines that the communication confirmation signal from the third communication apparatus 103 has not been received when the communication confirmation signal has not been received within a predetermined time period after the communication confirmation signal has been transmitted by the third communication apparatus 103.
Next, the third timer of the communication device (here, the fourth communication device 104) having the longest standby time among the second to fourth communication devices 102 to 104, which is determined based on the identification information, ends the time counting (S131). When the third timer counts up, the fourth communication device 104 transmits a radio signal (communication confirmation signal) to the remaining communication devices (the first to third communication devices 101 to 103) by broadcasting (S132).
When each of the first to third communication apparatuses 101 to 103 receives the communication confirmation signal from the fourth communication apparatus 104, the received signal strength of the communication confirmation signal received from the fourth communication apparatus 104 is compared with the received signal strength reference value included in the start notification signal. Each of the first to third communication apparatuses 101 to 103 determines a communication status with the fourth communication apparatus 104 based on a result of comparison between the received signal strength of the received communication confirmation signal and the received signal strength reference value (S133 to S135). When the communication apparatus fails to receive the communication confirmation signal within the predetermined time period from the transmission of the communication confirmation signal by the fourth communication apparatus 104, each of the first to third communication apparatuses 101 to 103 determines that the communication confirmation signal from the fourth communication apparatus 104 has not been received.
Next, when the second timer of the first communication device 101 ends the counting (S136), the first communication device 101 switches the operation mode of the control unit 13 from the communication confirmation mode to the normal operation mode. Further, of the second to fourth communication devices 102 to 104, the second timer of the communication device (here, the second communication device 102) having the shortest time determined based on the identification information ends the time measurement (S137). When the second timer expires, the second communication device 102 switches the operation mode of the control unit 13 from the communication confirmation mode to the normal operation mode, and transmits a result signal to the first communication device 101 (the communication device 1 that transmitted the start notification signal) by unicast (S138). The result signal contains information of the determination result of the communication confirmation signal transmitted from the communication device 1 other than itself. When the second timer is counted (S139), the third communication device 103 switches the operation mode of the control unit 13 from the communication confirmation mode to the normal operation mode, and transmits a result signal to the first communication device 101 by unicast (S140). Similarly, in the fourth communication device 104, when the counting of the second timer is finished (S141), the operation mode of the control unit 13 is switched from the communication confirmation mode to the normal operation mode, and the result signal is transmitted to the first communication device 101 by unicast (S142).
The first communication device 101 receives the result signal from each of the second communication device 102 to the fourth communication device 104, and can obtain information on the reception status (the result of the communication confirmation process) of the wireless signal transmitted from the other communication device for all of the first communication device 101 to the fourth communication device 104. Of course, the second to fourth communication apparatuses 102 to 104 may transmit the result signal by broadcasting. In addition, the first communication apparatus 101 may transmit the result signal by broadcasting. Each of the second to fourth communication devices 102 to 104 can also obtain information on the reception status (the result of the communication confirmation process) of the wireless signal transmitted from the other communication device for all of the first to fourth communication devices 101 to 104.
When the second timer ends and the result signal is received from the remaining communication device 1 in the first communication device 101, information indicating the result of the communication confirmation result is transmitted to the communication terminal device 7 (S143). When any of the remaining communication apparatuses 1 (the second to fourth communication apparatuses 102 to 104) fails to receive the start notification signal transmitted first by the first communication apparatus 101, the communication apparatus 1 (which failed to receive the start notification signal) does not transmit the result signal. Therefore, the first communication apparatus 101 can also determine the communication apparatus 1 which cannot perform bidirectional communication with the first communication apparatus 101.
As described above, in the communication system 10 according to the present embodiment, the communication device 1 transmits the communication confirmation signal to the other communication device 1 by broadcasting. In this case, if the number of communication apparatuses 1 performing the communication confirmation process is N (N is a natural number), the number of times of transmitting the wireless signal (communication confirmation signal) in the communication confirmation process is N, and the number of times of transmitting the result signal is 2N-1, even if N-1 times is included.
On the other hand, when the communication confirmation signal is transmitted by unicast, it is necessary to transmit and receive the communication confirmation signal in both directions between arbitrary communication device pairs. Therefore, if the number of communication apparatuses 1 performing the communication confirmation process is N (N is a natural number), the number of times the wireless signal is transmitted in the communication confirmation process is (N-1)2If the number of transmission times including the result signal is N-1 times, it is N (N-1) times. That is, in this case, as the number of communication apparatuses 1 increases, the time required for the communication confirmation process rapidly increases.
In the communication system 10 of the present embodiment, the communication confirmation signal is transmitted by broadcasting, and therefore, even if the number of communication apparatuses 1 included in the communication system 10 is increased, the time taken for the communication confirmation is not easily increased.
(4) Modification example
The above-described embodiment is merely one of various embodiments of the present disclosure. The above-described embodiment can be variously modified according to design and the like if the object of the cost disclosure can be achieved. The same functions as those of the communication system 10 may be realized by a communication confirmation method, a computer program, a non-transitory recording medium in which a program is recorded, or the like.
The communication confirmation method according to one aspect is executed by a plurality of communication apparatuses 1 that transmit and receive radio signals using radio waves as a medium. In the communication confirmation process for confirming whether or not the wireless signal can be transmitted between any two communication apparatuses among the plurality of communication apparatuses 1, each of the plurality of communication apparatuses 1 transmits a communication confirmation signal, which is a wireless signal, to all the communication apparatuses 1 except for itself among the plurality of communication apparatuses 1 by broadcasting, and the plurality of communication apparatuses 1 sequentially transmit the communication confirmation signals.
A program according to one aspect is a program for causing a processor to execute a communication confirmation process of the communication device 1 when the program is executed by one or more processors capable of transmitting and receiving a radio signal using a radio wave as a medium.
A recording medium according to one aspect is a non-transitory recording medium that records a program for causing a processor to execute a communication confirmation process of the communication device 1 when the program is executed by one or more processors capable of transmitting and receiving radio signals using radio waves as a medium.
Modifications of the above embodiment will be described below. The following various modifications can be combined and applied as appropriate. Hereinafter, the above-described embodiment will be also referred to as "basic example".
The communication device 1 of the communication system 10 in the present disclosure includes a computer system in the control unit 13 or the like, for example. The computer system has a hardware processor and a memory as a main structure. The functions as the communication apparatus 1 in the present disclosure are realized by a processor executing a program recorded in a memory of a computer system. The program may be recorded in advance in a memory of the computer system, may be provided via an electric communication line, or may be recorded in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. A processor of a computer system is constituted by one to a plurality of electronic circuits including a semiconductor Integrated Circuit (IC) or a large scale integrated circuit (LSI). The integrated circuits such as ICs and LSIs referred to herein are called system LSIs, VLSIs (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration) depending on the degree of Integration. Furthermore, an FPGA (Field-Programmable Gate Array) that can be programmed after LSI manufacturing, or a logic device that can perform reconfiguration of the connection relationship inside LSI or reconfiguration of circuit division inside LSI can also be used as a processor. The plurality of electronic circuits may be integrated into one chip or may be provided in a plurality of chips in a dispersed manner. The plurality of chips may be collected in one device or may be provided in a plurality of devices in a distributed manner. A computer system as referred to herein includes a microcontroller having more than one processor and more than one memory. Thus, the microcontroller is also configured by one to a plurality of electronic circuits including a semiconductor integrated circuit or a large scale integrated circuit.
Further, it is not essential for the communication device 1 that a plurality of functions in the communication device 1 are integrated into one housing, and the components of the communication device 1 may be provided in a plurality of housings in a distributed manner. Further, at least a part of the functions of the communication device 1 may be realized by cloud (cloud computing) or the like.
(4.1) modification 1
In the communication system 10 according to modification 1, the plurality of communication apparatuses 1 (the first communication apparatus 101 to the fourth communication apparatus 104) may perform the transmission/reception process of the wireless signal (the communication confirmation signal or the result signal) in the plurality of (multiple) sets of communication confirmation processes (steps S102 to S142 in the basic example). In each of the plurality of sets of transmission/reception steps, the first communication apparatus 101 may transmit a start notification signal (communication confirmation signal) including information indicating the number of times of the transmission/reception step of the second set. Each of the second communication apparatus 102 to the fourth communication apparatus 104 may transmit the result signal including the number information indicating the number of the transmission/reception steps.
In short, the communication confirmation process may be a process in which the plurality of communication devices 101 to 104 sequentially transmit the communication confirmation signals as one set of transmission/reception processes, and a plurality of sets of transmission/reception processes may be performed. In each of the plurality of sets of transmission/reception steps, the communication device 1 (first communication device 101) that transmits the communication acknowledgement signal first among the plurality of communication devices 101 to 104 may transmit the communication acknowledgement signal including the count information indicating the number of transmission/reception steps in the second set. This enables the communication status between the communication devices 1 to be checked in more detail.
(4.2) modification 2
The communication system 10 of the present modification is different from the communication system 10 of the basic example mainly in that the communication device 1 transmits a communication confirmation signal including information indicating a determination result. In the communication system 10 of the present modification, the second to fourth communication devices 102 to 104 do not transmit the result signal. However, in the communication system 10 of the present modification, the process of sequentially transmitting the communication confirmation signals by the plurality of communication devices 101 to 104 is set as one set of transmission/reception steps, and it is necessary to perform two or more sets of transmission/reception steps. The information on the number of times of performing the transmission/reception process is included in, for example, a start command signal transmitted from the communication terminal device 7. In the present modification, the time counted by the second timer is set to the same time among the plurality of communication devices 101 to 104.
The operation of the communication system 10 according to the present modification will be described below with reference to sequence diagrams of fig. 6 to 8.
Steps S201 to S220 of the present modification are the same as steps S101 to S120 of the basic example. That is, upon receiving the start command signal from the communication terminal 7 (S201), the first communication device 101 starts the communication confirmation process, and transmits a start notification signal (communication confirmation signal) to the remaining communication devices (the second communication device 102 to the fourth communication device 104) by broadcasting (S202). The second to fourth communication devices 102 to 104 determine the communication status with the first communication device 101 based on the comparison result between the received signal strength reference value and the received signal strength of the received start notification signal (S204 to S206). The first to fourth communication devices 101 to 104 synchronize with each other by the first timer (S203, S207 to S213), start the timing of the second timer (S214 to S217), and start the timing of the third timer (S218 to S220).
When the third timer counts up (S221), the second communication device 102 transmits a radio signal (communication confirmation signal) to the remaining communication devices (the first communication device 101, the third communication device 103, and the fourth communication device 104) by broadcasting (S222). Here, the second communication apparatus 102 transmits the information of the determination result of the start notification signal (communication confirmation signal) transmitted from the first communication apparatus 101, including the information in the wireless signal (communication confirmation signal). Therefore, by receiving the communication confirmation signal, the first communication apparatus 101, the third communication apparatus 103, and the fourth communication apparatus 104 can obtain information on the reception status of the wireless signal transmitted from the first communication apparatus 101 by the second communication apparatus 102.
When each of the first communication device 101, the third communication device 103, and the fourth communication device 104 receives the communication confirmation signal from the second communication device 102, it determines the communication status with the second communication device 102 based on the comparison result between the received signal strength of the received communication confirmation signal and the received signal strength reference value (S223 to S225).
Next, when the third timer counts up (S226), the third communication device 103 transmits a radio signal (communication confirmation signal) to the remaining communication devices (the first communication device 101, the second communication device 102, and the fourth communication device 104) by broadcasting (S227). The third communication apparatus 103 transmits the information on the determination result of the start notification signal (communication confirmation signal) transmitted from the first communication apparatus 101 and the information on the determination result of the communication confirmation signal transmitted from the second communication apparatus 102, including the information on the wireless signal (communication confirmation signal). Therefore, by receiving the communication confirmation signal, the first communication apparatus 101, the second communication apparatus 102, and the fourth communication apparatus 104 can obtain information on the reception status of the wireless signal transmitted from the first communication apparatus 101 and the second communication apparatus 102 by the third communication apparatus 103.
When each of the first communication device 101, the second communication device 102, and the fourth communication device 104 receives the communication confirmation signal from the third communication device 103, it determines the communication status with the third communication device 103 based on the result of comparing the received signal strength of the received communication confirmation signal with the received signal strength reference value (S228 to S230).
Next, when the third timer counts up (S231), the fourth communication device 104 transmits a radio signal (communication confirmation signal) to the remaining communication devices (the first communication device 101 to the third communication device 103) by broadcasting (S232). The fourth communication device 104 transmits the information on the determination result of the start notification signal (communication confirmation signal) transmitted from the first communication device 101, the information on the determination result of the communication confirmation signal transmitted from the second communication device 102, and the information on the determination result of the communication confirmation signal transmitted from the third communication device 103, including the information on the wireless signal (communication confirmation signal). Therefore, by receiving the communication confirmation signal, the first to third communication apparatuses 101 to 103 can obtain information on the reception status of the wireless signal transmitted from the first to third communication apparatuses 101 to 103 by the fourth communication apparatus 104.
When each of the first to third communication apparatuses 101 to 103 receives the communication confirmation signal from the fourth communication apparatus 104, the communication status with the fourth communication apparatus 104 is determined based on the result of comparing the received signal strength of the received communication confirmation signal with the received signal strength reference value (S233 to S235).
Next, when the second timer of the first to fourth communication devices 101 to 104 ends the time counting (S236 to S239), the first to fourth communication devices 101 to 104 switch the operation mode of the control unit 13 from the communication confirmation mode to the normal operation mode.
Here, in the first communication device 101 (the communication device 1 that has received the start command signal from the communication terminal 7), when the second timer ends counting, it is determined whether or not the number of times the transmission/reception process has been performed has reached the number of times specified by the start command signal from the communication terminal 7. If the number of times is not reached, the first communication device 101 transmits a start notification signal (communication confirmation signal) to the remaining communication devices 1 (the second communication device 102 to the fourth communication device 104) by broadcasting (S240). Note that the start notification signal at this time (second or later) may or may not include the received signal strength reference value.
The second to fourth communication devices 102 to 104 determine the communication status with the first communication device 101 based on the result of comparing the received signal strength of the received start notification signal with the received signal strength reference value (S242 to S244). The first to fourth communication devices 101 to 104 synchronize with each other by the first timer (S241, S245 to S251), start the counting of the second timer (S252 to S255), and start the counting of the third timer (S256 to S258).
When the third timer counts up (S259), the second communication device 102 transmits a radio signal (communication confirmation signal) to the remaining communication devices (the first communication device 101, the third communication device 103, and the fourth communication device 104) by broadcasting (S260). Here, the second communication device 102 includes and transmits at least the information on the determination result of the communication confirmation signal transmitted from the third communication device 103 obtained in step S229 and the information on the determination result of the communication confirmation signal transmitted from the fourth communication device 104 obtained in step S234 in the wireless signal (communication confirmation signal). Therefore, by receiving the communication confirmation signal, the first communication device 101, the third communication device 103, and the fourth communication device 104 can obtain information on the reception status of the wireless signal transmitted from the third communication device 103 and the fourth communication device 104 by the second communication device 102. Of course, the second communication device 102 may include the information on the determination result of the communication confirmation signal transmitted from the first communication device 101, which is obtained in step S204 and/or step S242, in the wireless signal (communication confirmation signal).
When each of the first communication device 101, the third communication device 103, and the fourth communication device 104 receives the communication confirmation signal from the second communication device 102, it determines the communication status with the second communication device 102 based on the comparison result between the received signal strength of the received communication confirmation signal and the received signal strength reference value (S261 to S263).
Next, when the third timer counts up (S264), the third communication device 103 transmits a radio signal (communication confirmation signal) to the remaining communication devices (the first communication device 101, the second communication device 102, and the fourth communication device 104) by broadcasting (S265). Here, the third communication device 103 transmits the wireless signal (communication confirmation signal) including at least the information of the determination result of the communication confirmation signal transmitted from the fourth communication device 104, which is obtained in step S235. Therefore, by receiving the communication confirmation signal, the first communication device 101, the second communication device 102, and the fourth communication device 104 can obtain information on the reception status of the wireless signal transmitted from the fourth communication device 104 by the third communication device 103. Of course, the third communication device 103 may include the information on the determination result of the communication confirmation signal transmitted from the first communication device 101 obtained in step S205 and/or step S243 and/or the information on the determination result of the communication confirmation signal transmitted from the second communication device 102 obtained in step S224 and/or step S262 in the wireless signal (communication confirmation signal).
When each of the first communication device 101, the second communication device 102, and the fourth communication device 104 receives the communication confirmation signal from the third communication device 103, it determines the communication status with the third communication device 103 based on the result of comparing the received signal strength of the received communication confirmation signal with the received signal strength reference value (S266 to S268).
Next, when the third timer is timed out (S269), the fourth communication device 104 transmits a radio signal (communication confirmation signal) to the remaining communication devices (the first to third communication devices 101 to 103) by broadcasting (S270). The fourth communication apparatus 104 may include the information on the determination result of the start notification signal (communication confirmation signal) transmitted from the first communication apparatus 101, the information on the determination result of the communication confirmation signal transmitted from the second communication apparatus 102, and/or the information on the determination result of the communication confirmation signal transmitted from the third communication apparatus 103 in the wireless signal (communication confirmation signal) and transmit them.
When each of the first to third communication apparatuses 101 to 103 receives the communication confirmation signal from the fourth communication apparatus 104, it determines the communication status with the fourth communication apparatus 104 based on the comparison result between the received signal strength of the received communication confirmation signal and the received signal strength reference value (S271 to S273).
When the second timers of the first to fourth communication devices 101 to 104 end the counting (S274 to S277), the first to fourth communication devices 101 to 104 switch the operation mode of the control unit 13 from the communication confirmation mode to the normal operation mode.
The first communication device 101 (the communication device 1 that has received the start command signal from the communication terminal 7) determines whether or not the number of times the transmission/reception process has been performed has reached the number of times designated from the communication terminal 7. When the specified number of times is reached, the first communication device 101 transmits information indicating the result of the communication confirmation result to the communication terminal unit 7 (S278).
In step S240, the first communication device 101 may transmit information described below by including the information in a radio signal (start notification signal; communication confirmation signal). The information included in the wireless signal may be information on the determination result of the communication confirmation signal transmitted from the second communication apparatus 102 obtained in step S223, information on the determination result of the communication confirmation signal transmitted from the third communication apparatus 103 obtained in step S228, and information on the determination result of the communication confirmation signal transmitted from the fourth communication apparatus 104 obtained in step S233.
In short, in the communication system 10 of the present modification, the plurality of communication devices 101 to 104 include the first communication device 101 and the second communication device 102. In the communication confirmation process, the first communication apparatus 101 transmits a communication confirmation signal earlier than the second communication apparatus 102. The second communication apparatus 102 determines whether or not the wireless signal from the first communication apparatus 101 can be received based on the reception status of the communication confirmation signal transmitted from the first communication apparatus 101. The second communication apparatus 102 includes result information indicating a determination result of the communication confirmation signal from the first communication apparatus 101 in the communication confirmation signal and transmits the result information.
For example, when three or more sets of transmission and reception steps are repeated, this modification can reduce the number of times of transmitting wireless signals, compared with the case of modification 1 in which the result signals are transmitted for each set in the transmission and reception steps. That is, even if the number of communication apparatuses 1 increases, the time taken for communication confirmation is unlikely to increase.
(4.3) modification 3
In the communication system 10 according to modification 3, the communication device 1 (first communication device 101) that transmits the communication confirmation signal (start notification signal) among the plurality of communication devices 101 to 104 may transmit the communication confirmation signal a plurality of times.
It is assumed that when a communication apparatus 1 fails to receive the start notification signal, the communication apparatus 1 does not transmit the communication confirmation signal. Therefore, the remaining communication devices 1 cannot determine the communication status of the radio signal transmitted from the communication device 1. Therefore, for example, the communication confirmation process needs to be performed again, and the time taken for the communication confirmation may become long.
In contrast, in the present modification, even if a certain communication device (the second communication device 102 to the fourth communication device 104) fails to receive the first start notification signal, it is possible that the subsequent start notification signal can be received. Therefore, the time taken for communication confirmation is difficult to lengthen. This modification is particularly useful in the case where reception of the start notification signal may fail.
In the case where the start notification signal is transmitted a plurality of times, the communication apparatus 1 (first communication apparatus 101) may transmit the start notification signal including information indicating that the start notification signal is the second time. In addition, when the start notification signal is transmitted a plurality of times, the communication device 1 may transmit the start notification signal including information indicating the predetermined number of times of transmission of the start notification signal.
On the other hand, it is preferable that the communication apparatuses 1 (the second communication apparatus 102 to the fourth communication apparatus 104) other than the first communication apparatus 1 which transmits the communication confirmation signal among the plurality of communication apparatuses 101 to 104 transmit the communication confirmation signal only once. In this case, there is an advantage that the time taken for communication confirmation is not easily increased.
(4.4) other modifications
In a modification, the communication device 1 that receives the start instruction signal from the communication terminal 7 among the plurality of communication devices 1 is preferably the communication device 1 that has been determined to be able to communicate with the remaining communication devices 1. For example, when registering a plurality of communication apparatuses 1 in the communication system 10, there is a case where a certain communication apparatus 1 is registered as a temporary master, and wireless communication is performed between the temporary master and another communication apparatus 1 to register the plurality of communication apparatuses 1 in the communication system 10. In this case, the user of the communication terminal device 7 preferably transmits a start notification signal to the communication device 1 serving as a temporary master.
In a modification, the communication system 10 may further include a relay for relaying wireless communication between the two communication devices 1. The relay device preferably relays wireless communication between a pair of communication devices that cannot perform bidirectional wireless communication in the communication confirmation process, for example.
In a modification, the communication system 10 may include an operation terminal that has the same appearance as the communication device 1 and is mounted on a wall in a house. The operation terminal device has a touch sensor section for detecting that a human hand touches an operation surface provided on the front surface of the operation terminal device, and is configured to receive an operation input to the operation surface exposed from the wall, as in the communication device 1. However, the operation terminal device does not directly control the load 5, but transmits a wireless signal to the communication device 1 in accordance with an operation input, and indirectly controls the load 5 by remotely controlling the communication device 1.
In a modification, the communication system 10 may be provided with a manual transmitter in addition to the communication terminal 7. The manual transmitter transmits a wireless signal to the communication device in accordance with an operation input to remotely control the communication device 1, and indirectly controls the load 5, similarly to the operation terminal device. However, the manual transmitter is not mounted on a wall in a house, but is configured to be portable as a remote controller of a general home appliance, and can be manually operated.
In a modification, the communication method of the communication unit 11 of the communication device 1 is not limited to Bluetooth (registered trademark), and may be wireless communication such as Wi-Fi (registered trademark) or specific low power wireless communication.
In a modification, the communication device 1 may not include the third timer. For example, the first communication device 101 may transmit the communication confirmation signal by including information on the order of transmission of the communication confirmation signal from the remaining communication devices 1 in the start notification signal. The remaining communication apparatuses 1 may transmit the communication confirmation signal after receiving the communication confirmation signal from the communication apparatus 1 that is one before the communication apparatus 1 and whose order designated by the start notification signal is, for example. The remaining communication apparatuses 1 may transmit the communication confirmation signal, for example, when the communication confirmation signal from the first two communication apparatuses 1 whose order designated by the start notification signal is self is not received at a predetermined time after the communication confirmation signal from the previous communication apparatus 1 is received. That is, the plurality of communication devices 1 may sequentially transmit the communication confirmation signal based on information other than the identification information.
In a modification, the communication device 1 may store the received signal strength reference value in advance.
(5) Summary of the invention
The following embodiments are disclosed in accordance with the embodiments and modifications described above.
A communication system (10) according to a first aspect is provided with a plurality of communication devices (1) that transmit and receive radio signals using radio waves as a medium. The plurality of communication devices (1) execute a communication confirmation process for confirming whether or not the wireless signal can be transmitted between any two communication devices (1) in the plurality of communication devices (1). In the communication confirmation processing, each of the plurality of communication apparatuses (1) transmits a communication confirmation signal, which is a wireless signal, to all the communication apparatuses (1) except for the communication apparatus (1) by broadcasting. In the communication confirmation process, the plurality of communication apparatuses (1) sequentially transmit communication confirmation signals.
According to this method, even if the number of communication devices (1) increases, the time taken for communication confirmation is not likely to increase.
A communication system (10) according to a second aspect is the first aspect, wherein identification information is allocated to a plurality of communication devices (1). In the communication confirmation process, the plurality of communication devices (1) transmit communication confirmation signals at predetermined time intervals in an order determined based on the assigned identification information.
According to this mode, the plurality of communication devices (101-104) easily transmit the communication confirmation signals in order.
In a communication system (10) according to a third aspect, in the first or second aspect, a plurality of communication devices (1) includes a first communication device (101) and a second communication device (102). In the communication confirmation process, the first communication device (101) transmits a communication confirmation signal before the second communication device (102). In the communication confirmation process, the second communication device (102) determines whether or not the wireless signal from the first communication device (101) can be received, based on the reception state of the communication confirmation signal transmitted from the first communication device (101). In the communication confirmation process, the second communication device (102) transmits a result message indicating the determination result of the communication confirmation signal from the first communication device (101) including the communication confirmation signal.
According to this aspect, even if the number of communication apparatuses 1 increases, the time taken for communication confirmation is not likely to increase.
A communication system (10) according to a fourth aspect is the communication system (10) according to any one of the first to third aspects, wherein the communication device (1) that transmits the communication acknowledgement signal among the plurality of communication devices (1) transmits the communication acknowledgement signal a plurality of times in the communication acknowledgement process.
According to this method, the time taken for communication confirmation is hardly increased.
A communication system (10) according to a fifth aspect is the communication system (10) according to any one of the first to fourth aspects, wherein, in the communication confirmation process, the communication device (1) other than the communication device (1) that has transmitted the communication confirmation signal, among the plurality of communication devices (1), transmits the communication confirmation signal only once.
According to this method, the time taken for communication confirmation is hardly increased.
A communication system (10) according to a sixth aspect is the communication system (10) according to any one of the first to fifth aspects, wherein each of the plurality of communication devices (1) determines a communication status with the other communication device (1) based on a result of comparing a received signal strength of a communication confirmation signal from the other communication device (1) with a received signal strength reference value in the communication confirmation process.
According to this aspect, each communication device (1) can determine not only whether or not it is possible to receive the communication confirmation signal, but also the reception level when reception is possible.
A communication system (10) according to a seventh aspect is the communication system (10) according to the sixth aspect, wherein at least one communication device (1) of the plurality of communication devices (1) transmits a communication confirmation signal including information indicating a received signal strength reference value.
According to this aspect, the received signal strength reference value can be set every time the communication confirmation process is performed. In addition, compared to the case where information on the value of the received signal strength is transmitted, information to be included in the result signal can be reduced.
A communication system (10) according to an eighth aspect is the communication system (10) according to any one of the first to seventh aspects, wherein the communication confirmation processing is a processing for transmitting communication confirmation signals in order from the plurality of communication devices (1) as a set of transmission/reception steps, and a plurality of sets of transmission/reception steps are performed. In each of the plurality of sets of transmission/reception processes, the communication device (1) which first transmits the communication confirmation signal among the plurality of communication devices (1) transmits the communication confirmation signal including the number information indicating the number of the transmission/reception processes in the second set.
According to this method, the communication status between the communication devices (1) can be confirmed in more detail.
A communication system (10) according to a ninth aspect is the communication system according to any one of the first to eighth aspects, wherein each of the plurality of communication devices (1) is a load control device that controls an operation of a load (5) individually corresponding to the communication device (1).
According to this aspect, the load (5) can be controlled by the communication device (1). After the completion of the communication confirmation, a wireless signal for controlling the load (5) is transmitted to any one of the plurality of communication devices (1), thereby controlling any one of the loads (5).
A communication system (10) according to a tenth aspect is the communication system according to any one of the first to ninth aspects, wherein the plurality of communication devices (1) start the communication confirmation process in response to an instruction from an external information terminal (communication terminal device 7).
According to this aspect, the user of the information terminal can cause the plurality of communication devices (1) to perform the communication confirmation processing at a desired point in time.
A communication system (10) according to an eleventh aspect is the communication system (10) according to any one of the first to tenth aspects, wherein at least one of the plurality of communication devices (1) transmits a result of the communication confirmation process to an external information terminal (communication terminal device 7) after the communication confirmation process is completed.
According to this mode, the user of the information terminal can know the result of the communication confirmation processing.
A communication device (1) according to a twelfth aspect is used as one of a plurality of communication devices (1) in a communication system (10) according to any one of the first to eleventh aspects.
According to this aspect, even if the number of communication devices (1) in the communication system (10) increases, the time taken for communication confirmation is unlikely to increase.
A non-transitory recording medium according to a thirteenth aspect has a program recorded thereon for causing a processor to execute a communication confirmation process of a communication device (1) according to the twelfth aspect, when the program is executed by one or more processors capable of transmitting and receiving radio signals using radio waves as a medium.
According to this aspect, even if the number of communication devices (1) in the communication system (10) increases, the time taken for communication confirmation is unlikely to increase.
A communication confirmation method according to a fourteenth aspect is a communication confirmation method executed by a plurality of communication devices (1) that transmit and receive radio signals using radio waves as a medium. The communication confirmation processing is processing for confirming whether or not the wireless signal can be transmitted between any two communication devices (1) among the plurality of communication devices (1). In the communication confirmation processing, each of the plurality of communication apparatuses (1) transmits a communication confirmation signal of a wireless signal to all but its own communication apparatuses (1) among the plurality of communication apparatuses (1) by broadcasting. In the communication confirmation process, the plurality of communication apparatuses (1) sequentially transmit communication confirmation signals.
According to this method, even if the number of communication devices (1) increases, the time taken for communication confirmation is not likely to increase.

Claims (14)

1. A kind of communication system is disclosed, in which,
the communication system includes a plurality of communication devices for transmitting and receiving radio signals using radio waves as a medium,
the plurality of communication apparatuses execute a communication confirmation process of confirming whether or not the wireless signal can be transmitted between any two communication apparatuses among the plurality of communication apparatuses,
in the communication confirmation process, it is possible to,
each of the plurality of communication apparatuses transmits a communication confirmation signal which is the wireless signal to all but its own communication apparatuses by broadcasting,
the plurality of communication devices sequentially transmit the communication confirmation signals.
2. The communication system of claim 1,
the plurality of communication devices are assigned identification information,
in the communication confirmation process, the plurality of communication apparatuses transmit the communication confirmation signal at predetermined time intervals in an order determined based on the assigned identification information.
3. The communication system according to claim 1 or 2,
the plurality of communication devices includes a first communication device and a second communication device,
in the communication confirmation process, it is possible to,
the first communication device transmits the communication confirmation signal before the second communication device,
the second communication apparatus determines whether or not the wireless signal from the first communication apparatus can be received based on a reception status of the communication confirmation signal transmitted from the first communication apparatus,
the second communication device transmits a result message indicating a result of determination on the communication confirmation signal from the first communication device, including the communication confirmation signal.
4. The communication system according to claim 1 or 2,
in the communication confirmation processing, the communication apparatus that transmits the communication confirmation signal first among the plurality of communication apparatuses transmits the communication confirmation signal a plurality of times.
5. The communication system according to claim 1 or 2,
in the communication confirmation processing, the communication apparatus other than the first communication apparatus that transmitted the communication confirmation signal among the plurality of communication apparatuses transmits the communication confirmation signal only once.
6. The communication system according to claim 1 or 2,
in the communication confirmation processing, each of the plurality of communication apparatuses determines a communication status with another communication apparatus based on a result of comparison between a received signal strength of the communication confirmation signal from the another communication apparatus and a received signal strength reference value.
7. The communication system of claim 6,
at least one of the plurality of communication devices transmits the communication confirmation signal including information indicating the received signal strength reference value.
8. The communication system according to claim 1 or 2,
the communication confirmation processing performs a plurality of sets of the transmission/reception processing as a set of transmission/reception processing in which the plurality of communication devices sequentially transmit the communication confirmation signals,
in each of the plurality of sets of the transmission/reception steps, the communication device that transmits the communication acknowledgement signal first among the plurality of communication devices transmits the communication acknowledgement signal including the number information indicating the number of the transmission/reception steps of the second set.
9. The communication system according to claim 1 or 2,
each of the plurality of communication devices is a load control device that controls an operation of a load individually corresponding to the communication device.
10. The communication system according to claim 1 or 2,
the plurality of communication devices start the communication confirmation processing in response to an instruction from an external information terminal.
11. The communication system according to claim 1 or 2,
at least one of the plurality of communication devices transmits a result of the communication confirmation processing to an external information terminal after the communication confirmation processing is finished.
12. A kind of communication device is disclosed, which can be used in the communication device,
the communication device is used as one of the plurality of communication devices in the communication system according to any one of claims 1 to 11.
13. A non-transitory recording medium having a plurality of recording layers,
the non-transitory recording medium has recorded thereon a program for causing one or more processors capable of transmitting and receiving radio signals using radio waves as a medium to execute the communication confirmation processing of the communication apparatus according to claim 12.
14. A communication confirmation method executed by a plurality of communication apparatuses that transmit and receive radio signals using electric waves as a medium,
in the communication confirmation process for confirming whether or not the wireless signal can be transmitted between any two communication apparatuses among the plurality of communication apparatuses,
each of the plurality of communication apparatuses transmits a communication confirmation signal which is the wireless signal to all but its own communication apparatuses by broadcasting,
the plurality of communication devices sequentially transmit the communication confirmation signals.
CN202010467112.3A 2019-05-28 2020-05-28 Communication system, communication device, non-transitory recording medium, and communication confirmation method Pending CN112020017A (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102088717A (en) * 2009-12-03 2011-06-08 北京时代凌宇科技有限公司 Method, device and system for screening data
CN102934507A (en) * 2010-06-09 2013-02-13 松下电器产业株式会社 Communication terminal, control device, communication method, control method, program, and integrated circuit
CN103636171A (en) * 2011-07-12 2014-03-12 古河电气工业株式会社 Communication apparatus and communication system
CN103858374A (en) * 2011-09-02 2014-06-11 高通股份有限公司 Systems and methods for acknowledging communications from a plurality of devices
CN104066205A (en) * 2014-07-03 2014-09-24 乐鑫信息科技（上海）有限公司 Device connection method and device connection device based on received signal intensity
JP2015149701A (en) * 2014-02-10 2015-08-20 矢崎総業株式会社 Node apparatus for radio ring network system and radio ring network system
JP2017152920A (en) * 2016-02-24 2017-08-31 パナソニックＩｐマネジメント株式会社 Communication terminal, multi-hop communication system and program
CN108430142A (en) * 2017-02-15 2018-08-21 松下知识产权经营株式会社 Luminaire, the communication means of luminaire and lighting system
CN108574971A (en) * 2017-03-10 2018-09-25 株式会社东芝 Wireless communication device, wireless communication system and radio communication program

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3827082B2 (en) * 2002-10-24 2006-09-27 株式会社中川研究所 Broadcast system, light bulb, lighting device
JP4506829B2 (en) * 2007-12-26 2010-07-21 ソニー株式会社 Wireless communication system, wireless communication apparatus, wireless communication method, and program
JP5267356B2 (en) * 2009-06-30 2013-08-21 富士電機株式会社 Sensor network system
JP5705030B2 (en) * 2011-05-30 2015-04-22 矢崎総業株式会社 Communications system
EP2742778B1 (en) * 2011-09-02 2018-12-05 Philips Lighting Holding B.V. Device and method for controlling a node of a wireless network
JP2017175425A (en) * 2016-03-24 2017-09-28 株式会社日立産機システム Radio system, communication route set method and radio terminal device
JP6697740B2 (en) * 2016-08-05 2020-05-27 パナソニックＩｐマネジメント株式会社 Communication device and communication system
JP6937478B2 (en) * 2017-04-27 2021-09-22 パナソニックＩｐマネジメント株式会社 Lighting system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102088717A (en) * 2009-12-03 2011-06-08 北京时代凌宇科技有限公司 Method, device and system for screening data
CN102934507A (en) * 2010-06-09 2013-02-13 松下电器产业株式会社 Communication terminal, control device, communication method, control method, program, and integrated circuit
CN103636171A (en) * 2011-07-12 2014-03-12 古河电气工业株式会社 Communication apparatus and communication system
CN103858374A (en) * 2011-09-02 2014-06-11 高通股份有限公司 Systems and methods for acknowledging communications from a plurality of devices
JP2015149701A (en) * 2014-02-10 2015-08-20 矢崎総業株式会社 Node apparatus for radio ring network system and radio ring network system
CN104066205A (en) * 2014-07-03 2014-09-24 乐鑫信息科技（上海）有限公司 Device connection method and device connection device based on received signal intensity
JP2017152920A (en) * 2016-02-24 2017-08-31 パナソニックＩｐマネジメント株式会社 Communication terminal, multi-hop communication system and program
CN108430142A (en) * 2017-02-15 2018-08-21 松下知识产权经营株式会社 Luminaire, the communication means of luminaire and lighting system
CN108574971A (en) * 2017-03-10 2018-09-25 株式会社东芝 Wireless communication device, wireless communication system and radio communication program

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