JP7089172B2 - Communication method and communication system - Google Patents

Description

The present invention generally relates to communication methods and communication systems, more specifically to improving the reliability and security of communication between a communication device and a plurality of information processing devices, and further, each of the plurality of information processing devices. The present invention relates to a communication method and a communication system that enable individual control.

In recent years, a field called IoT (Internet of Things) has been attracting attention. As the name implies, IoT means that all devices around us are connected to a communication network such as the Internet or LAN (Local Area Network). By utilizing IoT, acquisition of various information and operation of devices can be realized at a lower cost than before.

Factors that have attracted attention in the IoT field include miniaturization and low power consumption of devices capable of wireless communication, and advances in wireless communication technology. In particular, in the field of wireless communication technology, a wireless communication standard called BLE (Bluetooth (registered trademark), low energy), which consumes extremely little power, is widely used in the field of IoT. Wireless communication that complies with the BLE standard has a short communication range and a low communication speed, but it consumes extremely little power, and although it depends on the frequency of communication execution, one coin battery (button battery) is used for wireless communication for one year or more. Is possible. Therefore, in the IoT field where communication with a huge number of devices is required, wireless communication conforming to the BLE standard is widely used.

One-to-many (1: n) communication between a communication device (master unit) and a plurality of information processing devices (slave units) according to the BLE standard is pairing between the communication device and each of the plurality of information processing devices. Is executed, and then the same signal (broadcast command) is transmitted (broadcast) to each of a plurality of information processing devices in a state in which a signal can be received from a communication device (scan state).

Such one-to-many communication according to the BLE standard is called broadcast communication, and is used to simultaneously control a large number of information processing devices (for example, sensors, lights, cameras, speakers, switches, traffic lights, etc.) with one communication device. , Widely used (see, for example, Patent Document 1).

In broadcast communication according to the BLE standard, the same broadcast command is transmitted from the communication device to each of the plurality of information processing devices. In other words, in broadcast communication based on the BLE standard, the communication device does not distinguish each of the plurality of information processing devices, sends the same signal to all the information processing devices, and causes the same processing to be executed at the same time. On the other hand, depending on the application of a plurality of information processing devices, there is a need to individually control each of the plurality of information processing devices, but in broadcast communication according to the BLE standard, each of the plurality of information processing devices is individually controlled. I can't control it. Therefore, broadcast communication according to the BLE standard cannot be used for such needs.

Further, since each of the plurality of information processing devices does not have information for identifying the communication device that is the source of the broadcast command, even if there are a plurality of communication devices, the plurality of information processing devices may be used. Each cannot distinguish between communication devices. Therefore, even if there is a need to enable only the control of multiple information processing devices by a specific communication device and improve the security of broadcast communication from the communication device to each of the multiple information processing devices, the BLE standard is followed. Broadcast communication cannot be used.

Further, in the broadcast communication according to the BLE standard, the communication between the communication device and each of the plurality of information processing devices is performed only by transmitting a broadcast command from the communication device to each of the plurality of information processing devices. No signal is transmitted from each of the plurality of information processing devices to the communication device. As described above, the broadcast communication according to the BLE standard is a one-way transmission from the communication device to each of the plurality of information processing devices. Therefore, in the broadcast communication according to the BLE standard, the communication device cannot receive the signal from each of the plurality of information processing devices, and each of the plurality of information processing devices receives the broadcast command and follows the broadcast command. It is not possible to confirm whether or not the processing has been executed, and it is not possible to improve the reliability of broadcast communication from the communication device to each of the plurality of information processing devices.

Japanese Unexamined Patent Publication No. 2018-5977

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to improve the reliability and security of communication from a communication device to each of a plurality of information processing devices, and further to improve the reliability and security of communication from the plurality of information processing devices. It is an object of the present invention to provide a communication method and a communication system capable of controlling each of them individually.

Such an object is achieved by the following inventions (1) to (9).
(1) A communication method for executing communication between a communication device and a plurality of information processing devices.
When the pairing button of each of the plurality of information processing devices is pressed, an advertisement signal is transmitted from the information processing device to which the pairing button is pressed to the communication device, and the communication device and the pairing button are transmitted. The process of establishing a connection with the information processing device for which is pressed, and
After writing the BD address for identifying the communication device and the device ID of the information processing device assigned by the communication device in the memory of the information processing device for which the connection with the communication device has been established, The step of disconnecting the connection between the communication device and the information processing device, and
A step of transmitting a broadcast command including the BD address and the device ID to each of the plurality of information processing devices for which writing of the BD address and the device ID to the memory has been completed.
When the BD address and the device ID written in the memory of the information processing device that received the broadcast command match the BD address and the device ID included in the broadcast command, the said. A communication method comprising a step of executing a process according to the broadcast command using an information processing device.

(2) The communication method according to (1) above, wherein the communication between the communication device and the plurality of information processing devices is broadcast communication according to a BLE (Bluetooth Low Energy) standard.

(3) Using the information processing device to execute the process according to the broadcast command After the process, the information processing device that executed the process according to the broadcast command sends a response signal to the communication device. The communication method according to (1) or (2) above, further comprising a step of transmitting.

(4) The plurality of information processing devices are configured to execute the step of transmitting the response signal to the communication device after the elapse of different standby times after receiving the broadcast command. The communication method described in 3).

(5) The broadcast command including the BD address and the device ID until the communication device receives the response signal from all of the plurality of information processing devices specified by the device ID included in the broadcast command. The communication method according to (3) or (4) above, which is configured to repeatedly execute the step of transmitting.

(6) The step of establishing the connection between the communication device and the information processing device to which the pairing button is pressed is
A step of transmitting authentication information from the information processing device to which the pairing button is pressed to the communication device and executing authentication of the information processing device by the communication device.
The above-mentioned step of establishing the connection between the communication device and the information processing device to which the pairing button is pressed only when the authentication of the information processing device by the communication device is successful. The communication method according to any one of 1) to (5).

(7) The step of transmitting the broadcast command including the device ID and the BD address to each of the plurality of information processing devices is performed by the plurality of information processing devices for a predetermined period and at a predetermined interval. The communication method according to any one of (1) to (6) above, which comprises a step of repeatedly transmitting the broadcast command including the device ID and the BD address to each of them.

(8) A communication system for executing communication between a communication device and a plurality of information processing devices.
The communication device includes a processor and a memory connected to the processor.
The memory of the communication device is
A connection establishment module for receiving advertisement signals from each of the plurality of information processing devices and establishing a connection with the information processing device to which the advertisement signals are transmitted,
By transmitting the BD address for identifying the communication device and the device ID of the information processing device assigned by the communication device to the information processing device for which the connection with the communication device has been established, the said. An information writing module that makes it possible to write the BD address and the device ID in the memory of the information processing device.
A broadcast module that sends a broadcast command including the BD address and the device ID to each of the plurality of information processing devices is stored.
Each of the plurality of information processing devices has the BD address and the device ID written in its own memory when the broadcast command is received from the communication device, and the BD address included in the broadcast command. A communication system characterized by being configured to execute a process according to the broadcast command when the device ID and the device ID match.

(9) The communication system according to (8) above, wherein the communication between the communication device and the plurality of information processing devices is broadcast communication according to a BLE (Bluetooth Low Energy) standard.

In the communication method and communication system of the present invention, the BD address for identifying the communication device and the device ID of the information processing device assigned by the communication device are written in the memory of each of the plurality of information processing devices. Further, the broadcast command transmitted from the communication device to each of the plurality of information processing devices includes a BD address for identifying the communication device that is the source of the broadcast command and a device ID of the information processing device to be controlled. Includes. Each of the plurality of information processing devices that received the broadcast command from the communication device collates the BD address and device ID contained in the received broadcast command with the BD address and device ID written in its own memory. , When the BD address and device ID included in the received broadcast command and the BD address and device ID written in its own memory match, the process according to the broadcast command is executed.

Therefore, by adjusting the device ID included in the broadcast command, it is possible to select which of the plurality of information processing devices is to be controlled. Therefore, according to the communication method and communication system of the present invention, it is possible to individually control each of a plurality of information processing devices even when broadcast communication according to the BLE standard is used.

Further, if the BD address included in the received broadcast command and the BD address written in its own memory do not match, the information processing device does not execute the process according to the broadcast command. Therefore, according to the communication method and communication system of the present invention, only the control of a plurality of information processing devices by a specific communication device is enabled, and the security of broadcast communication from the communication device to each of the plurality of information processing devices is improved. be able to.

Further, in the communication method and communication system of the present invention, the information processing device that has executed the processing according to the broadcast command transmits a response signal to the communication device. Therefore, the communication device that has transmitted the broadcast command can confirm whether or not each of the plurality of information processing devices has received the broadcast command and executed the process according to the broadcast command. This makes it possible to improve the reliability of broadcast communication from the communication device to each of the plurality of information processing devices.

It is a figure which shows schematically the communication system of this invention. It is a block diagram of the communication device shown in FIG. It is a flowchart for demonstrating the communication method of this invention. It is a flow diagram for demonstrating the process in the connection establishment process shown in FIG. It is a flow diagram for demonstrating the process in the information writing process shown in FIG. It is a flow diagram for demonstrating the process in the broadcast process shown in FIG. It is a flow diagram for demonstrating the processing in the process of information processing execution and the transmission process of a response signal / error signal shown in FIG.

<Communication system 1>
First, the communication system of the present invention will be described in detail with reference to FIGS. 1 and 2. FIG. 1 is a diagram schematically showing a communication system of the present invention. FIG. 2 is a block diagram of the communication device shown in FIG.

The communication system 1 shown in FIG. 1 includes a communication device 10 and a plurality of information processing devices 20_1, 20_2 ... 20_n (hereinafter collectively referred to as an information processing device 20), and includes the communication device 10 and a plurality of information processing devices 10. It is configured to execute one-to-many (1: n) communication with the information processing device 20 of the above. In the communication system 1, the communication executed between the communication device 10 and the plurality of information processing devices 20 is broadcast communication according to the BLE (Bluetooth Low Energy) standard. A broadcast command is transmitted from the communication device 10 to each of the plurality of information processing devices 20 (the transmission of this command is also referred to as broadcast). The broadcast command transmitted from the communication device 10 includes an instruction regarding a process (service) to be executed by the information processing device 20, and each of the plurality of information processing devices 20 that have received the broadcast command follows the broadcast command. Execute the process.

<< Communication device 10 >>
The communication device 10 functions as a master unit (central or broadcaster) in broadcast communication according to the BLE standard. The communication device 10 can control a plurality of information processing devices 20 by transmitting a broadcast command to each of the plurality of information processing devices 20.

The communication device 10 may be implemented as a single device, or may be in any arithmetic device such as a desktop computer, a laptop computer, a laptop computer, a workstation, a tablet computer, a mobile phone, a smartphone, a PDA, or a wearable terminal. It may be carried out in.

As shown in FIG. 2, the communication device 10 has one or more processors 11 for executing control of the communication device 10 and I / O for executing input to the communication device 10 and output from the communication device 10. Stores an O (input / output) interface 12, a BLE communication unit 13 for executing wireless communication according to the BLE standard, a module 15 used for executing processing of the communication device 10, and data 16. It has one or more memories 14.

The one or more processors 11 include one or more microprocessors, a microcomputer, a microcontroller, a digital signal processor (DSP), a central processing unit (CPU), a memory control unit (MCU), and an image processing arithmetic processing unit (Mugen). A computing unit that executes arithmetic processing such as signal manipulation based on computer-readable instructions such as a GPU), a state machine, a logic circuit, an integrated circuit for a specific application (ASIC), or a combination thereof. In particular, the processor 11 is configured to fetch computer-readable instructions (eg, data, programs, modules, etc.) stored in the memory 14 to perform computations, signal manipulations and controls.

The I / O interface 12 includes various software interfaces such as a web interface, a graphical user interface (GUI), and a hardware interface. For example, the I / O interface 12 is an interface for peripheral devices such as keyboards, mice, touch panel displays, external memories, printers, and displays. The I / O interface 12 enables input to the communication device 10 using an input device such as a keyboard, a mouse, and a touch panel display, and output from the communication device 10 to a display, a printer, and an external memory. Further, the I / O interface 12 may enable the communication device 10 to communicate with an arbitrary external device such as a web server or a data server provided externally via a network such as the Internet.

The BLE communication unit 13 is a unit used to perform wireless communication in accordance with the BLE standard. The BLE communication unit 13 includes components necessary for executing wireless communication according to the BLE standard such as an antenna, a transmission / reception circuit, and a modulation / demodulation circuit, and is provided with a plurality of information processing devices 20 in response to command input from the processor 11. Perform wireless communication with each of them according to the BLE standard.

The memory 14 includes a volatile storage medium (for example, RAM, SRAM, DRAM), a non-volatile storage medium (for example, ROM, EPROM, EEPROM, flash memory, hard disk, optical disk, CD-ROM, digital versatile disk (DVD), etc. Blu-ray discs, magnetic cassettes, magnetic tapes, magnetic discs), or computer readable media containing combinations thereof.

The memory 14 is communicably connected to the processor 11 and stores a plurality of modules 15 that can be executed by the processor 11 and data 16 necessary for processing by the plurality of modules 15. Further, the memory 14 has a function of temporarily storing data received, processed, and generated by one or more of the plurality of modules 15 and data necessary for executing the processing by the plurality of modules 15.

Module 15 is a computer-readable instruction that can be executed by processor 11 such as routines, applications, programs, algorithms, libraries, objects, components, data structures, or combinations thereof.

The module 15 includes a connection establishment module 151 for establishing a connection (pairing) with the information processing device 20, an information writing module 152 that enables information to be written in the memory 23 of the information processing device 20, and an information writing module 152. It includes a broadcast module 153 that transmits a broadcast command to each of the plurality of information processing devices 20, and an arbitrary number of other modules 154 for supplementing the functions provided by the communication device 10.

The processor 11 can provide a desired function by using various modules stored in the memory 14. For example, by using the broadcast module 153, the processor 11 can execute a process for transmitting a broadcast command to each of the plurality of information processing devices 20. Various modules of the module 15 used by the processor 11 to provide the functions of the communication device 10 will be described in detail later.

The data 16 includes authentication information 161 used for authentication of each of the plurality of information processing devices 20, a BD (blue tooth device) address 162 for identifying the communication device 10, and a plurality of information processing devices 20. Each of the uniquely assigned device ID 163 and any number of other data 164 necessary for executing the processing of the communication device 10 are included.

The authentication information 161 is information for authenticating the information processing device 20, such as information for issuing an authentication key to the information processing device 20. In the present invention, the communication device 10 is configured to execute only communication with the predetermined information processing device 20, and the authentication information 161 is configured to communicate with the communication device 10 in advance. It is used to authenticate the authorized information processing device 20. The authentication information 161 is written in the memory 14 at the time of shipment or manufacture of the communication device 10.

The BD address 162 is information for identifying the communication device 10. The BD address 162 is uniquely assigned to the communication device 10. The communication device 10 includes the BD address 162 in the broadcast command transmitted from the communication device 10 to each of the plurality of information processing devices 20. As a result, each of the information processing devices 20 that have received the broadcast command can identify the communication device 10 that has transmitted the broadcast command by referring to the BD address 162 included in the received broadcast command.

The device ID 163 is identification information uniquely assigned to each of the plurality of information processing devices 20 by the communication device 10. When the communication device 10 wants to control only any one or more of the plurality of information processing devices 20, any arbitrary command to be controlled by the broadcast command transmitted from the communication device 10 to each of the plurality of information processing devices 20. The device ID 163 corresponding to one or more information processing devices 20 is included. As a result, each of the plurality of information processing devices 20 that have received the broadcast command refers to the device ID 163 included in the received broadcast command, so that the received broadcast command controls which information processing device 20. It is possible to identify whether it was sent.

The BD address 162 and the device ID 163 constitute a broadcast command transmitted from the communication device 10 to each of the plurality of information processing devices 20 together with an instruction regarding a process (service) to be executed by the information processing device 20. Broadcast commands used in conventional broadcast communications according to the BLE standard do not include BD address 162 and device ID 163. In the communication system 1 of the present invention, the broadcast command transmitted from the communication device 10 is for specifying the communication device 10 that is the source of the broadcast command, in addition to the instruction regarding the process (service) to be executed by the information processing device 20. The BD address 162 and the device ID 163 for specifying the information processing device 20 to be controlled by the broadcast command are included.

<< Information processing device 20 >>
Returning to FIG. 1, each of the plurality of information processing devices 20 functions as a slave unit (peripheral or observer) in broadcast communication according to the BLE standard. Each of the information processing devices 20 receives a broadcast command transmitted from the communication device 10 and executes processing according to the broadcast command.

The information processing device 20 is not particularly limited as long as it can receive the broadcast command transmitted from the communication device 10 and execute the process according to the broadcast command. For example, any device such as a sensor, lighting, a camera, a speaker, a switch, and a traffic light can be used as the information processing device 20.

As shown in FIG. 1, each of the information processing devices 20 is a BLE communication unit for executing wireless communication according to the BLE standard between the processor 21 for executing the control of the information processing device 20 and the communication device 10. A pairing button pressed when pairing the 22, the memory 23 communicably connected to the processor 21, the application unit 24 for executing a predetermined process (service), and the communication device 10. It includes 25 and an internal power supply 26. In the illustrated embodiment, each of the information processing devices 20 is driven by the electric power supplied from the internal power source 26 such as a button battery, a dry cell, and a lithium ion battery, but the present invention is not limited to this. It is also within the scope of the present invention that each of the information processing devices 20 does not have an internal power source 26 and is driven by electric power supplied from an external power source (not shown).

The processor 21 is an arithmetic unit similar to the processor 11 of the communication device 10 described above, and executes control of the information processing device 20. The BLE communication unit 22 is a communication unit similar to the BLE communication unit 13 of the communication device 10 described above, and is used to execute wireless communication with the communication device 10 in accordance with the BLE standard.

The memory 23 is a volatile or non-volatile computer-readable medium similar to the memory 14 of the communication device 10 described above. The memory 23 of the information processing device 20 stores authentication information 231 such as an authentication key used for authentication of the information processing device 20 executed by the communication device 10. Further, the BD address 162 for specifying the communication device 10 transmitted from the communication device 10 and the device ID 163 assigned to the information processing device 20 by the communication device 10 are written in the memory 23.

The authentication information 231 is information used for authentication of the information processing device 20 executed by the communication device 10 such as an authentication key issued by the communication device 10. The authentication information 231 is written in the memory 23 of the information processing device 20 at the time of manufacture or shipment of the information processing device 20. The information processing device 20 transmits the authentication information 231 in its own memory 23 to the communication device 10, and the communication device 10 refers to the authentication information 161 in its own memory 14 and the received authentication information 231 to provide information. Authenticate the processing device 20.

The BD address 162 in the memory 23 corresponds to the BD address 162 stored in the memory 14 of the communication device 10, and is the memory of the information processing device 20 when the connection (pairing) with the communication device 10 is established. It is written in 23. Further, the device ID 163 in the memory 23 corresponds to the device ID 163 stored in the memory 14 of the communication device 10, and the memory of the information processing device 20 is used when the connection (pairing) with the communication device 10 is established. Written in 23.

As described above, the information processing device 20 used in the communication system 1 of the present invention is uniquely assigned in the memory 23 by the BD address 162 and the communication device 10 for identifying the communication device 10 which is the source of the broadcast command. The device ID 163 is stored. On the other hand, as described above, the broadcast command transmitted from the communication device 10 includes the BD address 162 and the device ID 163 in addition to the instruction regarding the process (service) to be executed by the information processing device 20.

Therefore, the information processing device 20 that has received the broadcast command from the communication device 10 collates the BD address 162 included in the broadcast command transmitted from the communication device 10 with the BD address 162 stored in its own memory 23. By doing so, it is possible to determine whether or not the received broadcast command is transmitted from the communication device 10 for which the connection (pairing) has been established.

Further, the information processing device 20 that has received the broadcast command from the communication device 10 collates the device ID 163 included in the broadcast command transmitted from the communication device 10 with the device ID 163 stored in its own memory 23. Therefore, it is possible to determine whether or not the transmitted broadcast command was transmitted to control itself.

In the communication system 1 of the present invention, when the information processing device 20 matches the BD address 162 and the device ID 163 included in the broadcast command with the BD address 162 and the device ID 163 written in its own memory 23, the information processing device 20 matches. It is configured to perform processing according to the broadcast command. On the other hand, when the BD address 162 and the device ID 163 included in the broadcast command do not match the BD address 162 and the device ID 163 written in the memory 23 of the information processing device 20, the information processing device 20 transmits the received broadcast command. It is configured to be destroyed.

In other words, the information processing device 20 has received a broadcast command transmitted from a specific communication device 10 corresponding to the BD address 162 written in its own memory 23, and the broadcast command is sent to itself. It is configured to execute the process according to the broadcast command only when the corresponding device ID 163 is included.

Therefore, according to the communication system 1 of the present invention, a plurality of information processing devices 20 controlled by the communication device 10 are individually controlled by adjusting the device ID 163 in the broadcast command transmitted from the communication device 10. Can be done. Further, in the communication system 1 of the present invention, even if the information processing device 20 receives the broadcast command, if the BD address 162 in the broadcast command and the BD address 162 in its own memory 23 do not match, the processing is performed. Do not execute (service). Therefore, in the communication system 1 of the present invention, only the control of the plurality of information processing devices 20 by the specific communication device 10 is enabled, and the security of the broadcast communication from the communication device 10 to each of the plurality of information processing devices 20 is improved. Can be made to.

When the BD address 162 and the device ID 163 included in the broadcast command received by the information processing device 20 match the BD address 162 and the device ID 163 written in the memory 23 of the information processing device 20 in the application unit 24. In addition, it is a unit for executing processing according to the received broadcast command. For example, when the information processing device 20 is a sensor, the application unit 24 is a sensor unit, and when the information processing device 20 is lighting, the application unit 24 is a lighting unit. By using the application unit 24, the information processing device 20 can execute a process (service) according to a broadcast command.

When the information processing device 20 executes a process (service) according to a broadcast command using the application unit 24, a process (service) according to the broadcast command is executed on the communication device 10 using the BLE communication unit 22. A response signal indicating that the information has been processed is transmitted. The response signal transmitted from the information processing device 20 to the communication device 10 includes the device ID 163 uniquely assigned to the information processing device 20 by the communication device 10. Therefore, when the communication device 10 receives the response signal, the communication device 10 can identify the information processing device 20 that has transmitted the response signal by referring to the device ID 163 included in the response signal.

As described above, the information processing device 20 is configured to transmit a response signal to the communication device 10 after executing a process (service) according to the broadcast command. By receiving the response signal, the communication device 10 can confirm that the information processing device 20 has executed the process according to the broadcast command. Therefore, according to the communication system 1 of the present invention, the reliability of broadcast communication from the communication device 10 to the information processing device 20 can be improved.

The transmission of the response signal from the information processing device 20 to the communication device 10 is executed after a predetermined standby time has elapsed after receiving the broadcast command. The standby times of the plurality of information processing devices 20 are set to be different from each other. As a result, the transmission of the response signal from each of the plurality of information processing devices 20 to the communication device 10 is not executed at the same time, but is executed with a predetermined delay. Therefore, it is possible to prevent the plurality of information processing devices 20 from simultaneously transmitting the response signal to the communication device 10 and causing the response signals to interfere with each other.

The method of setting the predetermined standby time is not particularly limited as long as the standby times of the plurality of information processing devices 20 are set to be different, but for example, the device ID 163 uniquely assigned to the information processing device 20 is used. , A predetermined waiting time can be set. For example, when the device ID assigned to any information processing device 20 is "001", the predetermined waiting time is 1 × 10 ms = 10 ms, and the device ID assigned to the other information processing device 20 is “002”. , The predetermined waiting time is set to be 2 × 10 ms = 20 ms.

Further, when the information processing device 20 cannot execute the process (service) according to the broadcast command by using the application unit 24, the information processing device 20 uses the BLE communication unit 22 to send an error signal to the communication device 10. Send. The error signal transmitted from the information processing device 20 to the communication device 10 includes the device ID 163 uniquely assigned to the information processing device 20 by the communication device 10. Therefore, when the communication device 10 receives the error signal, the information processing device 20 that has transmitted the error signal can be specified by referring to the device ID 163 included in the error signal.

Further, the transmission of the error signal from the information processing device 20 to the communication device 10 is executed after the elapse of a predetermined waiting time similar to the waiting time used when transmitting the response signal after receiving the broadcast command. As a result, the transmission of the error signal from each of the plurality of information processing devices 20 to the communication device 10 is not executed at the same time, but is executed with a predetermined delay. Therefore, it is possible to prevent the plurality of information processing devices 20 from simultaneously transmitting the error signal to the communication device 10 and causing the error signal to interfere with each other.

The transmission of the error signal is inappropriate, including the device ID 163 corresponding to the information processing device 20 that transmitted the error signal and an instruction that causes the information processing device 20 that transmitted the error signal to perform unexecutable processing. It means that the broadcast command was transmitted by the communication device 10. Therefore, the communication device 10 that has received the error signal recognizes that the device ID 163 and / or the instruction of the broadcast command needs to be corrected, and urges the user or the administrator of the communication device 10 to take appropriate measures. can.

<< Module 15 of communication device 10 >>
Next, with reference to FIG. 2, various modules of the module 15 used by the processor 11 to provide the function of the communication device 10 will be described.

The connection establishment module 151 receives advertisement signals from each of the plurality of information processing devices 20, and is used to establish a connection (pairing) with the information processing device 20 that has transmitted the advertisement signals. When any one of the pairing buttons 25 of the plurality of information processing devices 20 is pressed (or long pressed), the information processing device 20 from which the pairing button 25 is pressed attaches the pairing button to the communication device 10. The advertisement signal (advertisement packet) of the information processing device 20 for which 25 is pressed is transmitted. The advertisement signal transmitted from the information processing device 20 to the communication device 10 is defined by the BLE standard, and communicates with the existence of the information processing device 20 and the information processing (service) provided by the information processing device 20. It is a signal (packet) transmitted to the communication device 10 in order to notify the device 10.

When the communication device 10 receives the advertisement signal from any one of the plurality of information processing devices 20, the connection establishment module 151 refers to the information processing device 20 that has transmitted the advertisement signal in the memory 23 of the information processing device 20. Requests that the authentication information 231 stored in the communication device 10 be transmitted to the communication device 10.

After that, when the communication device 10 receives the authentication information 231 from the information processing device 20, the connection establishment module 151 refers to the authentication information 161 stored in the memory 14 of the communication device 10 and the received authentication information 231. Then, the information processing device 20 is authenticated. Specifically, when the authentication information 161 stored in the memory 14 of the communication device 10 and the received authentication information 231 correspond to each other, the connection establishment module 151 authenticates the information processing device 20. When the information processing device 20 is authenticated, the connection establishment module 151 establishes a connection (pairing) with the authenticated information processing device 20.

The information writing module 152 is uniquely assigned to the information processing device 20 to which the connection is established by the connection establishment module 151, the BD address 162 for specifying the communication device 10, and the information processing device 20 to which the connection is established. It is used to transmit the device ID 163 and to enable the information processing device 20 to write the BD address 162 and the device ID 163 in its own memory 23.

When the connection with the information processing device 20 by the connection establishment module 151 is established, the information writing module 152 uniquely assigns the device ID 163 to the information processing device 20 for which the connection is established. The device ID 163 assigned to the information processing device 20 is stored in the memory 14 of the communication device 10.

After that, the information writing module 152 transmits the BD address 162 for specifying the communication device 10 and the device ID 163 assigned to the information processing device 20 to the information processing device 20 to which the connection is established, and information is provided. The processing device 20 is instructed to write the BD address 162 and the device ID 163 in its own memory 23. After that, the information writing module 152 disconnects from the information processing device 20. When the connection with the communication device 10 is disconnected, the information processing device 20 shifts to a scan state in which a broadcast command can be received from the communication device 10.

The connection establishment module 151 and the information writing module 152 described above establish a connection between the communication device 10 and the information processing device 20, and write the BD address 162 and the device ID 163 into the memory 23 of the information processing device 20. , Is executed for all the information processing devices 20 constituting the communication system 1. When one or more information processing devices 20 are added later to the communication system 1, the connection between the communication device 10 and the added information processing device 20 is established, and the added information is added. Writing of the BD address 162 and the device ID 163 into the memory 23 of the processing device 20 is executed each time one or more information processing devices 20 are added to the communication system 1.

By the above-mentioned processing using the connection establishment module 151 and the information writing module 152, the communication device 10 and the memory 23 in which the BD address 162 and the plurality of device IDs 163 corresponding to the plurality of information processing devices 20 are stored in the memory 14. The communication system 1 is formed by a plurality of information processing devices 20 in which a BD address 162 and a device ID 163 uniquely assigned by the communication device 10 are stored.

As described above, in the communication system 1 of the present invention, each of the plurality of information processing devices 20 communicates with the communication device 10 individually, and the plurality of information processing devices 20 do not communicate with each other. Therefore, the communication system 1 The topology of is star-shaped. In the communication system 1 that adopts the star-shaped topology, the same broadcast command is simultaneously transmitted from the communication device 10 to all the information processing devices 20. Therefore, in the communication system 1 that adopts the star-type topology, all the commands (signals) are in comparison with the communication system that adopts the ring-type or bus-type tropo-type in which commands (signals) are relayed between devices. The waiting time until reaching the information processing device 20 of the above is small. Therefore, the communication system 1 that adopts the star-type topology can quickly and simultaneously control a plurality of information processing devices 20.

The broadcast module 153 is used to transmit a broadcast command to each of the plurality of information processing devices 20 constituting the communication system 1. The processor 11 of the communication device 10 may use an arbitrary timing (for example, once an hour, once a day, once a month, or a predetermined timing, etc.) or via the I / O interface 12. Then, at the timing when the operation for executing the transmission of the broadcast command is input, the broadcast module 153 is used to transmit the broadcast command to each of the plurality of information processing devices 20 constituting the communication system 1.

The broadcast command is executed by the BD address 162 stored in the memory 14 of the communication device 10, the device ID 163 corresponding to the information processing device 20 to be controlled by the broadcast command transmitted by the communication device 10, and the information processing device 20. Includes instructions on what to do (services).

The broadcast module 153 generates a broadcast command according to a preset condition, and transmits the broadcast command to a plurality of information processing devices 20 via the BLE communication unit 13. The information processing device 20 that has received the broadcast command collates the BD address 162 included in the broadcast command with the BD address 162 stored in its own memory 23, so that the received broadcast command is connected ( It is possible to determine whether or not the communication device 10 has established pairing). Further, the information processing device 20 that has received the broadcast command collates the device ID 163 included in the broadcast command with the device ID 163 stored in its own memory 23, so that the transmitted broadcast command sends itself. It is possible to determine whether or not it was sent for control.

Further, the broadcast module 153 broadcasts to each of the plurality of information processing devices 20 constituting the communication system 1 at a predetermined period (for example, 250 ms, 1000 ms, 2500 ms) and a predetermined interval (for example, 30 ms interval). It may be configured to send commands. As a result, the broadcast command can be reliably transmitted to all of the plurality of information processing devices 20.

Further, the broadcast module 153 determines whether or not the communication device 10 has received a response signal from all of the one or more information processing devices 20 specified by the device ID 163 included in the broadcast command. When the communication device 10 does not receive a response signal from all of the one or more information processing devices 20 specified by the device ID 163 included in the broadcast command, a plurality of information processing devices constituting the communication system 1 The broadcast command is retransmitted for each of the 20.

As described above, since the response signal transmitted from the information processing device 20 to the communication device 10 includes the device ID 163 uniquely assigned to the information processing device 20, the broadcast module 153 is included in the received response signal. By referring to the device ID 163, it is possible to specify from which information processing device 20 the response signal is not received from among the one or more information processing devices 20 specified by the device ID 163 included in the broadcast command. can. Therefore, when retransmitting the broadcast command, the broadcast module 153 may change the broadcast command so as to control only the information processing device 20 that has not transmitted the specified response signal.

Further, the broadcast module 153 determines whether or not the communication device 10 has received an error signal from any one or more information processing devices 20 specified by the device ID 163 included in the broadcast command. When the communication device 10 receives an error signal from any one of the information processing devices 20 specified by the device ID 163 included in the broadcast command, the information processing device to which the inappropriate broadcast command transmits the error signal. It has been transmitted to 20. In this case, the broadcast module 153 displays or transmits a message to the user or administrator of the communication system 1 or the communication device 10 that appropriate measures such as correction of the broadcast command need to be taken. As a result, the user or administrator of the communication system 1 or the communication device 10 can take appropriate measures such as modifying the broadcast command.

Further, as described above, since the error signal transmitted from the information processing device 20 to the communication device 10 includes the device ID 163 uniquely assigned to the information processing device 20, the broadcast module 153 is included in the received error signal. By referring to the device ID 163, the information processing device 20 that has transmitted the error signal can be specified. Therefore, the broadcast module 153 indicates from which information processing device 20 the error signal is transmitted to the message displayed or transmitted to the user or administrator of the communication system 1 or the communication device 10 after receiving the error signal. Information may be included.

The communication method S100 of the present invention is executed by the communication system 1 composed of the communication device 10 using such various modules by the processor 11 and the plurality of information processing devices 20 described above. Hereinafter, the communication method S100 of the present invention will be described in detail with reference to FIGS. 3 to 7.

FIG. 3 is a flowchart for explaining the communication method of the present invention. FIG. 4 is a flow chart for explaining the process in the connection establishment step shown in FIG. FIG. 5 is a flow chart for explaining the process in the information writing process shown in FIG. FIG. 6 is a flow chart for explaining the process in the broadcast process shown in FIG. FIG. 7 is a flow chart for explaining the processing in the information processing execution and the response signal / error signal transmission process shown in FIG.

The communication method S100 of the present invention shown in FIG. 3 is executed by the communication system 1 of the present invention described above. First, in step S110, when each pairing button 25 of the information processing device 20 is pressed, the advertisement signal of the information processing device 20 for which the pairing button 25 is pressed is transmitted to the communication device 10, and the communication device 20 is transmitted. A connection is established between 10 and the information processing device 20 on which the pairing button 25 is pressed.

FIG. 4 shows the details of step S110. In step S111, the pairing button 25 of any one of the plurality of information processing devices 20 is pressed. When the pairing button 25 of the information processing device 20 is pressed, the advertisement signal is transmitted from the information processing device 20 to which the pairing button 25 is pressed to the communication device 10. When the communication device 10 receives the advertisement signal from the information processing device 20, in step S112, the processor 11 of the communication device 10 uses the connection establishment module 151 to send its own advertisement signal to the information processing device 20. Request to send the authentication information 231 stored in the memory 23.

In step S113, the information processing device 20 that has received the request transmits the authentication information 231 stored in its own memory 23 to the communication device 10. When the communication device 10 receives the authentication information 231 from the information processing device 20, in step S114, the processor 11 of the communication device 10 uses the connection establishment module 151 to obtain the authentication information 161 stored in its own memory 14. , Refers to the received authentication information 231 and executes the authentication of the information processing device 20. If the authentication of the information processing device 20 fails in step S114, the process between the information processing device 20 and the communication device 10 for which the pairing button 25 is pressed ends. On the other hand, if the authentication of the information processing device 20 is successful in the step S114, the connection (pairing) between the communication device 10 and the information processing device 20 is established in the step S115, and the communication method S100 is the step. Move to S120.

Returning to FIG. 3, in step S120, the BD address 162 and the communication device 10 for identifying the communication device 10 are assigned in the memory 23 of the information processing device 20 for which the connection with the communication device 10 is established in the step S110. After the device ID 163 of the information processing device 20 is written, the connection between the communication device 10 and the information processing device 20 is disconnected.

FIG. 5 shows the details of step S120. In step S121, the processor 11 of the communication device 10 uniquely assigns the device ID 163 to the information processing device 20 for which the connection is established in step S110 by using the information writing module 152. The device ID 163 assigned to the information processing device 20 is stored in the memory 14 of the communication device 10. After that, the processor 11 of the communication device 10 uses the information writing module 152 to the information processing device 20 for which the connection has been established, to the BD address 162 for specifying the communication device 10, and the information processing device 20. At the same time as transmitting the assigned device ID 163, the information processing device 20 is instructed to write the BD address 162 and the device ID 163 in its own memory 23.

In step S122, the information processing device 20 that has received the BD address 162 and the device ID 163 from the communication device 10 writes the received BD address 162 and the device ID 163 into its own memory 23. After that, in step S123, the connection between the information processing device 20 and the communication device 10 is disconnected. After that, in step S124, the information processing device 20 shifts to a scan state in which broadcast commands can be received from the communication device 10. When the information processing device 20 shifts to the scan state in step S124, the communication method S100 shifts to step S130.

In general, when performing wireless communication according to the BLE standard, the connection between the master unit (corresponding to the communication device 10 of the present invention) and the slave unit (corresponding to the information processing device 20 of the present invention) is once (corresponding to the information processing device 20 of the present invention). When pairing) is established, the connection is maintained and the slave unit shifts to a scan state in which it can receive broadcast commands from the master unit. However, when the connection between the master unit and the slave unit is maintained, the battery consumption of the slave unit increases. Therefore, in the present invention, after the connection (pairing) between the communication device 10 and the information processing device 20 is established and the BD address 162 and the device ID 163 are written in the memory 23 of the information processing device 20, after the connection (pairing) is established. The connection between the communication device 10 and the information processing device 20 is disconnected, and the information processing device 20 shifts to the scanning state. With such a configuration, it is possible to suppress the consumption of the internal power supply 26 of the information processing device 20 in the scan state.

In steps S110 and S120, the establishment of the connection between the communication device 10 and the information processing device 20 and the writing of the BD address 162 and the device ID 163 into the memory 23 of the information processing device 20 are performed by the communication system 1. Is executed for all the information processing devices 20 constituting the above. As a result, the communication device 10 in which the BD address 162 and the plurality of device IDs 163 corresponding to the plurality of information processing devices 20 are stored in the memory 14 and the BD address 162 and the communication device 10 are uniquely assigned in the memory 23. The communication system 1 is formed by the plurality of information processing devices 20 in which the device ID 163 is stored.

Returning to FIG. 3, in step S130, a broadcast command is transmitted to each of the plurality of information processing devices 20 for which the writing of the BD address 162 and the device ID 163 to the memory 23 has been completed.

FIG. 6 shows the details of step S130. In step S131, the processor 11 of the communication device 10 uses the broadcast module 153 to transmit a broadcast command to each of the plurality of information processing devices 20. The broadcast command is transmitted in step S131 at an arbitrary timing (for example, once an hour, once a day, once a month, or at a predetermined timing, etc.) or the I / O interface 12. The operation for executing the transmission of the broadcast command is executed at the input timing.

As shown in FIG. 6, the transmission of the broadcast command from the communication device 10 to each of the plurality of information processing devices 20 is performed at a predetermined period (for example, 250 ms, 1000 ms, 2500 ms) and at a predetermined interval (for example, 30 ms interval). Will be executed. As a result, all of the plurality of information processing devices 20 can surely receive the broadcast command. When the transmission of the broadcast command in the step S131 is completed, the communication method S100 shifts to the step S140.

Returning to FIG. 3, in step S140, the BD address 162 and device ID 163 written in the memory 23 of the information processing device 20 that received the broadcast command match the BD address 162 and device ID 163 included in the broadcast command. In this case, the information processing device 20 is used to execute the process according to the broadcast command. Further, in step S140, the information processing device 20 that has received the broadcast command transmits a response signal or an error signal to the communication device 10.

FIG. 7 shows the details of step S140. In step S141, each of the plurality of information processing devices 20 receives the broadcast command transmitted from the communication device 10 in step S130. In step S142, each of the plurality of information processing devices 20 that have received the broadcast command has the BD address 162 and device ID 163 written in its own memory 23, and the BD address 162 and device ID 163 included in the broadcast command. Match.

As a result, when the BD address 162 and the device ID 163 written in the own memory 23 do not match the BD address 162 and the device ID 163 included in the broadcast command, the processing of the information processing device 20 is performed. The process proceeds to step S143. In step S143, the information processing device 20 discards the received broadcast command, the series of processing of the information processing device 20 is completed, and the information processing device 20 shifts to the scan state again.

On the other hand, when the BD address 162 and the device ID 163 written in the own memory 23 and the BD address 162 and the device ID 163 included in the broadcast command match, the processing of the information processing device 20 is a step. Move to S144. In step S144, the information processing device 20 determines whether or not the process (service) according to the broadcast command can be executed by using its own application unit 24.

If the processing (service) according to the broadcast command cannot be executed by using the own application unit 24, the processing of the information processing device 20 shifts to the process S143, and the broadcast received as described above is performed. Discard the command. After that, in step S145, the information processing device 20 transmits an error signal indicating that the processing (service) according to the broadcast command cannot be executed by its own application unit 24 to the communication device 10. Further, the error signal transmitted from the information processing device 20 to the communication device 10 includes the device ID 163 uniquely assigned to the information processing device 20 by the communication device 10. The communication device 10 can identify the information processing device 20 that has transmitted the error signal by referring to the device ID 163 included in the error signal. The transmission of the error signal by the information processing device 20 to the communication device 10 is executed after the above-mentioned waiting time has elapsed after receiving the broadcast command. When the transmission of the error signal in the step S145 is completed, the series of processes of the information processing device 20 is completed, and the information processing device 20 shifts to the scan state again.

On the other hand, when the processing (service) according to the broadcast command can be executed by using the own application unit 24, the processing of the information processing device 20 shifts to the process S146. In step S146, the information processing device 20 uses the application unit 24 to execute a process (service) according to a broadcast command. After that, in step S147, the information processing device 20 transmits a response signal indicating that the process (service) according to the broadcast command has been executed to the communication device 10. Further, the response signal transmitted from the information processing device 20 to the communication device 10 includes the device ID 163 uniquely assigned to the information processing device 20 by the communication device 10. The communication device 10 can identify the information processing device 20 that has transmitted the response signal by referring to the device ID 163 included in the response signal. The transmission of the response signal by the information processing device 20 to the communication device 10 is executed after the above-mentioned standby time has elapsed after receiving the broadcast command. When the transmission of the response signal in step S147 is completed, the series of processes of the information processing device 20 is completed, and the information processing device 20 shifts to the scan state again. After that, the communication method S100 shifts to the step S150.

Returning to FIG. 3, in step S150, the processor 11 of the communication device 10 uses the broadcast module 153 to receive response signals from all the information processing devices 20 identified by one or more device IDs 163 included in the broadcast command. Determine if it has been done. When the response signal is received from all the information processing devices 20 specified by one or more device IDs 163 included in the broadcast command, the processor 11 of the communication device 10 controls the desired information processing device 20 by the broadcast command. Is determined to have been achieved, and the communication method S100 ends.

On the other hand, when the response signals are not received from all the information processing devices 20 specified by one or more device IDs 163 included in the broadcast command, the communication method S100 shifts to the step S160. In step S160, the processor 11 of the communication device 10 uses the broadcast module 153 to process information processing in which the information processing device 20 specified by one or more device IDs 163 included in the broadcast command does not transmit a response signal. Identify the device 20. Further, when the communication device 10 receives an error signal, the processor 11 of the communication device 10 uses the broadcast module 153 to process an information processing device specified by one or more device IDs 163 included in the broadcast command. Of the 20, the information processing device 20 that has transmitted the error signal is specified. These identifications are performed by reference to the device ID 163 contained in the received response signal and / or error signal.

When the information processing device 20 that does not transmit the response signal is identified, the processor 11 of the communication device 10 includes the device ID 163 corresponding to the information processing device 20 that does not transmit the response signal by using the broadcast module 153. , The broadcast command is changed so as not to include the device ID 163 corresponding to the information processing device 20 that has already transmitted the response signal. After that, the communication method S100 returns to the step S130 and executes the transmission of the changed broadcast command. The change of the broadcast command in step S160 may be omitted. In this case, the communication method S100 returns to the step S130 and retransmits the same broadcast command as the previous time to each of the plurality of information processing devices 20.

When the information processing device 20 that has transmitted the error signal is identified, the processor 11 of the communication device 10 uses the I / O interface 12 to inform the user or the administrator of the communication system 1 or the communication device 10. Display or send a message that appropriate measures such as correction of the broadcast command need to be taken. As a result, the user or administrator of the communication system 1 or the communication device 10 can take appropriate measures such as correction of the broadcast command.

As described above, in the communication system 1 and the communication method S100 of the present invention, the BD address 162 and the communication device 10 for specifying the communication device 10 which is the transmission source of the broadcast command are unique in the memory 23 of the information processing device 20. The device ID 163 assigned to is stored in. Further, the broadcast command transmitted from the communication device 10 includes the BD address 162 and the device ID 163 in addition to the instruction regarding the process (service) to be executed by the information processing device 20.

Further, each of the plurality of information processing devices 20 that have received the broadcast command from the communication device 10 has the BD address 162 and the device ID 163 included in the received broadcast command, and the BD address 162 written in its own memory 23. And the device ID 163 are collated, and when the BD address 162 and the device ID 163 included in the received broadcast command match the BD address 162 and the device ID 163 written in the own memory 23, the broadcast command is sent. Executes the following processing.

Therefore, according to the communication system 1 and the communication method S100 of the present invention, by adjusting the device ID 163 included in the broadcast command, a plurality of information processing devices are used even when the broadcast communication according to the BLE standard is used. It is possible to control each of these individually.

Further, each of the plurality of information processing devices 20 that have received the broadcast command from the communication device 10 has the BD address 162 included in the received broadcast command and the BD address 162 written in its own memory 23. If not, the process according to the broadcast command is not executed. Therefore, according to the communication system 1 and the communication method S100 of the present invention, only the control of the plurality of information processing devices 20 by the specific communication device 10 is enabled, and the communication device 10 broadcasts to each of the plurality of information processing devices 20. Communication security can be improved.

Further, in the communication system 1 and the communication method S100 of the present invention, the information processing device 20 that has executed the processing according to the broadcast command transmits a response signal to the communication device 10. Therefore, the communication device 10 that has transmitted the broadcast command can confirm whether or not each of the plurality of information processing devices 20 has received the broadcast command and executed the process according to the broadcast command. This makes it possible to improve the reliability of broadcast communication from the communication device 10 to each of the plurality of information processing devices 20.

As described above, in the communication system 1 and the communication method S100 of the present invention, only the control of the plurality of information processing devices 20 by the specific communication device 10 is enabled in that the plurality of information processing devices 20 can be individually controlled. Therefore, the security of broadcast communication can be improved, and the reliability of broadcast communication is improved because the response signal is transmitted from the information processing device 20 that has executed the processing to the communication device 10. That is, it is possible to provide a remarkable advantage that cannot be provided by wireless communication according to the conventional BLE standard.

In particular, by using the communication system 1 and the communication method S100 of the present invention, a plurality of information processing devices 20 can be individually controlled and information to be controlled by one transmission of a broadcast command by one communication device 10. By receiving the response signals or error signals from all of the processing devices 20, the execution status of the processing of each information processing device 20 can be recognized. Therefore, the communication system 1 and the communication method S100 of the present invention are particularly useful for a system in which a large number of information processing devices 20 are individually controlled and high reliability and high security of broadcast communication are required.

Therefore, the communication system 1 and the communication method S100 of the present invention are, for example, a bed sensor monitoring system in the medical field composed of a plurality of sensors and a management device mounted on a bed, and a large number for monitoring each process in a factory. Sensor systems such as factory process monitoring systems consisting of sensors and management devices, LED lighting systems for controlling multiple LED lights, game machines and toys that require simultaneous and individual control of various devices, It can be effectively used in a wireless switch system for turning on / off a plurality of devices simultaneously and individually, a wearable device system for controlling a plurality of wearable devices attached to the body, a biosensor, and the like.

Although the communication method and the communication system of the present invention have been described above based on the illustrated embodiment, the present invention is not limited thereto. The configuration of each component of the present invention can be replaced with any configuration capable of exhibiting the same function, or any configuration can be added to the configuration of the present invention.

A person skilled in the art to which the present invention belongs can make changes to the described communication method and communication system configuration of the present invention without significantly departing from the principles, ideas, and scope of the present invention. Communication methods and communication systems with modified configurations are also within the scope of the present invention.

For example, the number and types of components of the communication system shown in FIGS. 1 and 2 are merely examples for explanation, and the present invention is not necessarily limited thereto. It is also within the scope of the invention that any component has been added or combined, or any component has been removed, without departing from the principles and intent of the invention. Further, each component of the communication system may be realized by hardware, software, or a combination thereof.

Further, the number and types of steps of the communication method shown in FIGS. 3 to 7 are merely examples for explanation, and the present invention is not necessarily limited to this. It is also within the scope of the present invention that any step is added or combined for any purpose, or any step is deleted without departing from the principle and intention of the present invention.

For example, in the above description, when the connection establishment module 151 uniquely assigns the device ID 163 to the information processing device 20, the plurality of information processing devices 20 are assigned by the characteristics of the information processing device 20 (for example, by the information processing device 20). It may be grouped according to the content of the provided process (service). In this case, the device ID 163 assigned to each information processing device 20 may include a group ID for specifying the group to which the information processing device 20 belongs.

1 ... Communication system 10 ... Communication device 11 ... Processor 12 ... I / O interface 13 ... BLE communication unit 14 ... Memory 15 ... Module 151 ... Connection establishment module 152 ... Information writing module 153 ... Broadcast module 154 ... Other modules 16 ... Data 161 … Authentication information 162… BD address 163… Device ID 164… Other data 20… Information processing device 21… Processor 22… BLE communication unit 23… Memory 231… Authentication information 24… Application unit 25… Pairing button 26… Internal power supply S100… Communication method S110, S120, S130, S140, S150, S160 ... Process S111 to S115, S121 to S124, S131, S141 to S147 ... Process

Claims (9)

A communication method for executing communication between a communication device and a plurality of information processing devices.
When the pairing button of each of the plurality of information processing devices is pressed, an advertisement signal is transmitted from the information processing device to which the pairing button is pressed to the communication device, and the communication device and the pairing button are transmitted. The process of establishing a connection with the information processing device for which is pressed, and
After writing the BD address for identifying the communication device and the device ID of the information processing device assigned by the communication device in the memory of the information processing device for which the connection with the communication device has been established, The step of disconnecting the connection between the communication device and the information processing device, and
A step of transmitting a broadcast command including the BD address and the device ID to each of the plurality of information processing devices for which writing of the BD address and the device ID to the memory has been completed.
When the BD address and the device ID written in the memory of the information processing device that received the broadcast command match the BD address and the device ID included in the broadcast command, the said. A communication method comprising a step of executing a process according to the broadcast command using an information processing device. The communication method according to claim 1, wherein the communication between the communication device and the plurality of information processing devices is broadcast communication according to a BLE (Bluetooth Low Energy) standard. Using the information processing device, after the processing for executing the processing according to the broadcast command, a response signal is transmitted from the information processing device that has executed the processing according to the broadcast command to the communication device. The communication method according to claim 1 or 2, further comprising a step. 3. The third aspect of claim 3, wherein the plurality of information processing devices are configured to execute the step of transmitting the response signal to the communication device after the elapse of different standby times after receiving the broadcast command. Communication method. The communication device transmits the broadcast command including the BD address and the device ID until the response signal is received from all of the plurality of information processing devices specified by the device ID included in the broadcast command. The communication method according to claim 3 or 4, wherein the steps are repeatedly executed. The step of establishing the connection between the communication device and the information processing device to which the pairing button is pressed is
A step of transmitting authentication information from the information processing device to which the pairing button is pressed to the communication device and executing authentication of the information processing device by the communication device.
A claim comprising the step of establishing the connection between the communication device and the information processing device to which the pairing button is pressed only when the authentication of the information processing device by the communication device is successful. The communication method according to any one of 1 to 5. The step of transmitting the broadcast command including the device ID and the BD address to each of the plurality of information processing devices is performed to each of the plurality of information processing devices for a predetermined period and at a predetermined interval. The communication method according to any one of claims 1 to 6, further comprising a step of repeatedly transmitting the broadcast command including the device ID and the BD address. A communication system for executing communication between a communication device and a plurality of information processing devices.
The communication device includes a processor and a memory connected to the processor.
The memory of the communication device is
A connection establishment module for receiving advertisement signals from each of the plurality of information processing devices and establishing a connection with the information processing device to which the advertisement signals are transmitted,
By transmitting the BD address for identifying the communication device and the device ID of the information processing device assigned by the communication device to the information processing device for which the connection with the communication device has been established, the said. An information writing module that makes it possible to write the BD address and the device ID in the memory of the information processing device.
A broadcast module that sends a broadcast command including the BD address and the device ID to each of the plurality of information processing devices is stored.
Each of the plurality of information processing devices has the BD address and the device ID written in its own memory when the broadcast command is received from the communication device, and the BD address included in the broadcast command. A communication system characterized by being configured to execute a process according to the broadcast command when the device ID and the device ID match. The communication system according to claim 8, wherein the communication between the communication device and the plurality of information processing devices is broadcast communication according to a BLE (Bluetooth Low Energy) standard.

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