JP7445802B1 - Communication device, communication establishment method and notification method - Google Patents

Abstract

An object of the present invention is to more reliably establish communication between a detector and a communication device when detection information indicating a detection result of a predetermined event by a detector satisfies a predetermined condition. [Solution] A gas detector (40) is equipped with a sensor unit (SM) and receives detection information transmitted from a plurality of gas detectors (30) capable of communicating with the outside, and receives detection information based on a predetermined information by the sensor unit (SM). A communication unit (41T) that can receive detection information indicating the detection result of an event without establishing two-way communication; ) and a control unit (41C) that controls the communication unit (41T) to establish bidirectional communication with the communication unit (41T). [Selection diagram] Figure 3

Description

The present disclosure relates to a communication device, a communication establishment method, and a notification method.

Patent Document 1 discloses a gas detection system in which communication is performed between a mobile gas detector and a reception management unit that receives gas detection data sent from the mobile gas detector.

Japanese Patent Application Publication No. 2004-240823

In the gas detection system disclosed in Patent Document 1, communication is performed between a mobile gas detector and a monitoring device equipped with a reception management unit. It is not assumed that communication will be performed using Therefore, in the gas detection system described above, there is a problem in that information cannot be shared among multiple users when some abnormality occurs.

One aspect of the present disclosure aims to more reliably establish communication between a detector and a communication device when detection information indicating a detection result of a predetermined event by a detector satisfies a predetermined condition.

In order to solve the above problems, a communication device according to a first aspect of the present disclosure includes a first detection unit that detects a predetermined event, and detects detection information transmitted from a plurality of detectors capable of communicating with the outside. , a communication unit capable of receiving the detection information indicating the detection result of the predetermined event by the first detection unit without establishing bidirectional communication; and a control section that controls the communication section so as to establish bidirectional communication between at least some of the plurality of detectors and the communication section when the condition is satisfied.

The communication device controls the communication unit to establish bidirectional communication between at least some of the plurality of detectors and the communication unit when detection information transmitted from the detector satisfies a predetermined condition. . Thereby, when detection information indicating a detection result of a predetermined event by the detector satisfies a predetermined condition, communication can be established more reliably between the detector and the communication device.

In a communication device according to a second aspect of the present disclosure, in the communication device according to the first aspect, when the detection information satisfies the predetermined condition, the control unit connects each of the at least some of the detectors and the communication unit. The communication unit may be controlled so as to sequentially establish one-to-one two-way communication. Since one-to-one two-way communication between each of the plurality of detectors and the communication unit is established in sequence, the communication device can perform two-way communication with each of the plurality of detectors.

In a communication device according to a third aspect of the present disclosure, in the communication device according to the first aspect or the second aspect, the control unit notifies the detector that has established bidirectional communication with the communication unit. The communication unit may be controlled to transmit a notification instruction instructing the user to: After establishing two-way communication with the detector, the communication device can prompt the detector to make a notification.

A communication device according to a fourth aspect of the present disclosure may include a second detection unit that detects the predetermined event in the communication device according to the first aspect or the second aspect. The communication device can have both the function of establishing communication with the detector and the function of detecting a predetermined event.

In the communication device according to the fifth aspect of the present disclosure, in the communication device according to the first aspect or the second aspect, the plurality of detectors include a sensor unit that detects the concentration of a predetermined gas as the predetermined event, and a sensor unit that detects the concentration of a predetermined gas as the predetermined event. a determination unit that determines whether or not to issue an alarm according to the concentration of the predetermined gas, as the first detection unit, and when the determination unit determines to issue an alarm, an announcement that issues an alarm. The communication unit is capable of receiving determination information indicating a determination result by the determination unit as the detection information, and the control unit is configured to receive determination information indicating a determination result by the determination unit as the predetermined condition. The communication unit is configured to establish bidirectional communication between the at least some of the detectors and the communication unit when the information indicates that the determination unit has determined to issue an alarm. May be controlled.

The communication device performs two-way communication with at least some of the plurality of detectors when the determination information transmitted from the plurality of detectors is information indicating that it has been determined that an alarm will be issued. Establish. This allows users other than the user of the detector that initially issues the alarm to take action to ensure safety. Therefore, the safety of users of multiple detectors can be ensured.

A communication establishment method according to a sixth aspect of the present disclosure includes detection information transmitted from a plurality of detectors that detect a predetermined event, and in which the detection information indicating the detection result of the predetermined event by the detectors is bidirectionally transmitted. a receiving step in which the detection information received by the receiving step is received by a communication device without establishing communication; a determining step in which the detected information received in the receiving step satisfies a predetermined condition; and a determining step in which the predetermined condition is satisfied in the determining step. and a communication establishment step of controlling the communication device so as to establish bidirectional communication between at least some of the plurality of detectors and the communication device when it is determined that the communication device is the communication device.

A notification method according to a seventh aspect of the present disclosure includes a detection step of detecting a predetermined event, and a transmission step of transmitting detection information indicating a detection result of the predetermined event detected in the detection step to the outside from a plurality of detectors. and a receiving step in which a communication device receives the detection information transmitted from the plurality of detectors in the transmitting step without establishing bidirectional communication, and the detection information received in the receiving step is in a predetermined manner. and a notification step of instructing at least some of the plurality of detectors to establish bidirectional communication with the communication device and to issue a notification when a condition is satisfied.

When detection information indicating the detection result of a predetermined event by the detector satisfies a predetermined condition, communication can be established more reliably between the detector and the communication device, and at least some of the plurality of detectors It is possible to prompt the detector to establish communication and issue a notification.

According to one aspect of the present disclosure, when detection information indicating a detection result of a predetermined event by a detector satisfies a predetermined condition, communication can be established more reliably between the detector and the communication device.

FIG. 1 is a diagram illustrating a gas detection system according to an embodiment of the present disclosure. FIG. 2 is a plan view showing a gas detector included in the gas detection system shown in FIG. 1. FIG. 2 is a functional block diagram showing the electrical configuration of a gas detector included in the gas detection system shown in FIG. 1. FIG. 2 is a flowchart showing an example of the operation of the gas detection system shown in FIG. 1. FIG. 2 is a flowchart showing another example of the operation of the gas detection system shown in FIG. 1. FIG.

<Gas detection system>
The gas detection system 100 will be specifically explained below using FIGS. 1 to 3. FIG. 1 is a diagram illustrating a gas detection system 100 according to an embodiment of the present disclosure. FIG. 2 is a plan view showing the gas detector 30 included in the gas detection system 100 shown in FIG. FIG. 3 is a functional block diagram showing the electrical configuration of the gas detectors 30 and 40 included in the gas detection system 100 shown in FIG. 1.

In this embodiment, a case will be explained in which a gas detector 30 that detects a predetermined gas is used as a detector, and a gas detector 40 that is capable of data communication is used as a communication device. However, the present disclosure is not limited thereto, and any detection system may be used as long as it has a communication network that includes a detector that detects a predetermined event and a communication device that can communicate with the detector. Examples of the communication device include a mobile information terminal such as a smartphone or a tablet. The gas detection system 100, as shown in FIG. .

<Gas detector>
As shown in FIG. 2, the gas detector 30 includes, for example, a main body portion 31 having a rectangular shape. The main body part 31 has, for example, a box made of synthetic resin, and the box is configured to be portable by a user such as a worker. In other words, the gas detector 30 functions as a portable mobile terminal.

Further, an installation area 32 for installing five sensor sections SM is provided, for example, on the front side of the main body section 31. The installation area 32 is provided with slots 32a, 32b, 32c, 32d and 32e, each having a circular opening, for example. Five sensor parts SM are removably attached to the slots 32a, 32b, 32c, 32d, and 32e, respectively.

Furthermore, an audio output section 33 is provided, for example, on the front side of the main body section 31. The audio output unit 33 includes, for example, a speaker, and constitutes a notification unit that notifies the outside of detection information by outputting audio indicating detection information indicating the detection result of the sensor unit SM. The detection information is, for example, concentration information indicating the concentration of a predetermined gas detected by the sensor unit SM. Further, a display section 34 is provided, for example, on the front side of the main body section 31. The display unit 34 is configured using, for example, a liquid crystal display panel, and constitutes a notification unit that notifies the outside of the detection information by displaying detection information such as the detection result of the sensor unit SM.

The gas detector 30 is, for example, a gas detector that can be used in a compartment under an explosive atmosphere. Specifically, the gas detector 30 is configured to have a structure that complies with explosion-proof construction standards (for example, international standards "IEC 60079-0:2017" and "IEC 60079-1:2014").

In other words, the gas detector 30 is capable of detecting a predetermined gas in a compartment under an explosive atmosphere, and can operate with as little damage as possible even if a gas explosion occurs in the compartment. It is constructed in such a way that it can be maintained, and that its own aircraft does not become a source of ignition and prevents explosions. It should be noted that the term "explosive atmosphere" as used herein refers to an atmosphere in the relevant compartment that has the potential to cause an explosion. In other words, it refers to an atmosphere containing flammable gas at a gas concentration or higher that can cause an explosion.

<Electrical configuration of gas detector>
Next, with reference to reference numeral A1 in FIG. 3, the electrical configuration of the gas detector 30 will be specifically described. Reference numeral A1 in FIG. 3 indicates the electrical configuration of the gas detector 30. As shown by reference numeral A1 in FIG. 3, the gas detector 30 includes a sensor section SM and a main body section 31. In the gas detector 30, as shown in FIG. 2, five sensor sections SM are provided. Each sensor section SM is modularized as a gas sensor module for detecting a predetermined gas.

Specifically, the sensor part SM includes, for example, a constant potential electrolytic sensor, an NDIR (Non-Dispersive Infrared) sensor, a catalytic combustion sensor, a semiconductor sensor, or a MEMS (Micro Electro Mechanical System) type sensor element. I'm here. Further, the sensor unit SM may select a predetermined gas such as methane gas, hydrogen gas, carbon dioxide gas, oxygen gas, carbon monoxide gas, hydrogen sulfide gas, sulfur dioxide gas, etc., depending on the sensing format of the sensor element, etc. Configured to detect either chlorine gas or ammonia gas.

Note that, for example, in the gas detector 30, two of the five sensor units SM may be used to detect the same type of predetermined gas, or different types of predetermined gases may be detected. Good too. Further, the sensor unit SM may detect a measured value of the concentration of a predetermined gas.

The sensor unit SM is an example of a first detection unit that detects a predetermined event. In this embodiment, a case is illustrated in which the gas detector 30 includes a sensor unit SM that detects the concentration of a predetermined gas as a predetermined event. However, the present disclosure is not limited thereto, and the gas detector 30 may include a first detection unit that detects occurrence of a failure in the gas detector 30 as a predetermined event. Further, in the present disclosure, the gas detector 30 may include a first detection unit that detects reception of an operation instruction from a user, such as stopping an alarm, to an operation reception unit (not shown) as a predetermined event.

Further, in the gas detector 30, the main body 31 includes a control section 31C, a communication section 31T, and a notification section 31H, and is configured independently from the sensor section SM, which is detachable from the main body 31. has been done. The notification section 31H includes the audio output section 33 and the display section 34, as described above.

The control unit 31C includes, for example, a CPU, an MCU (Micro Controller Unit), or an ASIC (Application Specific Integrated Circuit). Further, the gas detector 30 includes a storage section (not shown) that stores a predetermined control program, and the control section 31C controls each section of the gas detector 30 according to the control program.

The control unit 31C performs a predetermined calculation on the detection result of the predetermined gas from the sensor unit SM using calibration data stored in advance in the sensor unit SM. Then, the control section 31C causes the notification section 31H to notify the predetermined calculation result as the detection result. Note that since the control unit 31C performs predetermined calculations using the calibration data stored in the sensor unit SM in this way, the gas detector 30 can easily replace the sensor unit SM.

The control unit 31C includes a determination unit 35, and the determination unit 35 determines whether the detected information satisfies a predetermined condition. For example, the determination unit 35 determines whether or not to issue an alarm depending on the concentration of the predetermined gas detected by the sensor unit SM. The determination unit 35 is an example of a first detection unit that detects a predetermined event.

The determination unit 35 detects the determination result of whether or not to issue a warning as a predetermined event. The determination information indicating the determination result by the determination unit 35 is an example of detection information. For example, the determination unit 35 may determine to issue an alarm when the concentration of the predetermined gas is equal to or higher than a predetermined value, and may determine not to issue an alarm when the concentration of the predetermined gas is less than the predetermined value.

The communication unit 31T includes, for example, a communication interface unit including an I/O port (input/output circuit). The communication unit 31T transmits connection request information including detection information indicating the detection result of the sensor unit SM to the outside of the gas detector 30 according to instructions from the control unit 31C.

Further, the communication unit 31T has a function of a transmitting unit that transmits the connection request information to the outside of the gas detector 30, and a function of a receiving unit that receives predetermined information from the outside of the gas detector 30. Further, the communication section 31T may be composed of a receiving section and a transmitting section. Furthermore, the communication unit 31T may transmit connection request information including determination information indicating the determination result by the determination unit 35 to the outside of the gas detector 30.

The connection request information is an advertisement in BLE (Bluetooth (registered trademark) Low Energy) communication that is sent in one direction from the communication unit 31T to the outside of the gas detector 30, and is sent from the communication unit 31T to the outside of the gas detector 30. This is information requesting connection with the communication unit 31T. The gas detector 30 functions as a peripheral in the BLE communication.

The electrical configuration of the gas detector 40 will be specifically described with reference to the reference numeral A2 in FIG. Reference numeral A2 in FIG. 3 indicates the electrical configuration of the gas detector 40. The configuration of gas detector 40 may be the same as the configuration of gas detector 30. Further, as shown by reference numeral A2 in FIG. 3, the gas detector 40 includes a sensor section SM2 and a main body section 41. The configurations of the sensor section SM2 and the main body section 41 may be the same as those of the sensor section SM and the main body section 31, respectively. The sensor unit SM2 is an example of a second detection unit that detects a predetermined event.

In the gas detector 40, the main body section 41 includes a control section 41C, a communication section 41T, and a notification section 41H. The gas detector 40 is configured to be portable by the user's hand. In other words, the gas detector 40 functions as a portable mobile terminal. Gas detector 40 is a gas detector different from gas detector 30. That is, the gas detector 40 is separate from the gas detector 30. The gas detector 40 functions as a central point in the BLE communication.

The communication unit 41T has the same configuration as the communication unit 31T, and has the function of a receiving unit that can receive connection request information from the gas detector 30, and the function of a reception unit that can receive connection request information from the outside of the gas detector 40. It has the function of a transmitter to transmit data. Further, the communication section 41T may be composed of a receiving section and a transmitting section.

The communication unit 41T establishes two-way communication with the detection information transmitted from the plurality of gas detectors 30 that can communicate with the outside and which indicates the detection result of a predetermined event by the first detection unit. It is possible to receive it without any problems.

Here, bidirectional communication means that mutual devices (at least some of the gas detectors 30 and gas detectors 40 of the plurality of gas detectors 30) perform communication in both directions of reception and transmission. Furthermore, establishing two-way communication means that the communication connection between at least some of the gas detectors 30 of the plurality of gas detectors 30 and the gas detector 40 is completed, and two-way communication becomes possible. .

Specifically, first, the communication unit 41T of the gas detector 40 receives connection request information transmitted by the communication unit 31T of at least some of the gas detectors 30, and the communication unit 41T Send connection request information to the gas detector 30. Thereby, the connection between the gas detector 30 and the gas detector 40 is completed, and bidirectional communication becomes possible. When bidirectional communication is established, the gas detector 40 sends a notification instruction to the gas detector 30 with which communication has been established, and the gas detector 30 sends a notification indicating that the notification instruction has been received to the gas detector 40. This enables two-way communication such as . The notification instruction will be described later.

Specifically, for example, the communication unit 41T may be able to receive detection information indicating the detection result of the predetermined gas by the sensor unit SM. Further, the communication unit 41T may be able to receive determination information indicating a determination result by the determination unit 35 as detection information. By including the sensor section SM2 and the communication section 41T, the gas detector 40 can have both the function of establishing communication with the gas detector 30 and the function of detecting a predetermined event.

The notification section 41H is configured similarly to the notification section 31H, and includes an audio output section 43 and a display section 44. The configurations of the audio output section 43 and the display section 44 may be the same as those of the audio output section 33 and the display section 34, respectively. The control section 41C is configured similarly to the control section 31C, and controls each section of the gas detector 40 according to a predetermined control program stored in a storage section (not shown) included in the gas detector 40.

The control section 41C includes a determination section 45. The determining unit 45 is configured similarly to the determining unit 35, and determines whether the detection information received by the communication unit 41T satisfies a predetermined condition. For example, the determination unit 45 issues an alarm in accordance with concentration information as detection information received by the communication unit 41T and indicating the concentration of a predetermined gas detected by the sensor unit SM of the gas detector 30. Determine whether or not to do so. For example, the determination unit 45 may determine to issue an alarm when the concentration of the predetermined gas is equal to or higher than a predetermined value, and may determine not to issue an alarm when the concentration of the predetermined gas is less than the predetermined value.

<Operation example of gas detection system>
Next, an example of the operation of the gas detection system 100 of this embodiment will be specifically described with reference to FIGS. 4 and 5. FIG. 4 is a flowchart showing an example of the operation of the gas detection system 100 shown in FIG. FIG. 5 is a flowchart showing another example of the operation of the gas detection system 100 shown in FIG. In the following description, first, a communication establishment method of the gas detection system 100 of this embodiment will be described using FIG. 4.

As shown in FIG. 4, the first detection section of the gas detector 30 detects a predetermined event (S1). Step S1 is an example of a detection step. Specifically, the sensor unit SM of the gas detector 30 detects the concentration of a predetermined gas as a predetermined event.

Note that in step S1, the first detection unit of the gas detector 30 may detect the occurrence of a failure in the gas detector 30 as a predetermined event. Further, the first detection section of the gas detector 30 may detect, as a predetermined event, reception of an operation instruction from a user, such as an instruction to stop an alarm, to the operation reception section. Furthermore, the determination unit 35 of the gas detector 30 may detect a determination result as to whether or not to issue a warning as a predetermined event.

Furthermore, when the determination unit 35 determines to issue a warning, the notification unit 31H issues a warning. Specifically, the audio output unit 33 notifies the alarm by outputting audio indicating the alarm. Further, the display unit 34 notifies the user of a warning by displaying warning information indicating the warning.

After the first detection section of the gas detector 30 detects the predetermined event, the communication section 31T transmits detection information indicating the detection result of the predetermined event by the first detection section of the gas detector 30 according to instructions from the control section 31C. It is transmitted to the outside of the gas detector 30 (S2). Note that the communication units 31T of the plurality of gas detectors 30 may transmit detection information indicating the detection result of the predetermined event detected by the first detection unit to the outside. Step S2 is an example of a sending process.

Specifically, the communication unit 31T transmits concentration information indicating the concentration of the predetermined gas detected by the sensor unit SM to the outside of the gas detector 30 as detection information. In addition, in step S2, the communication unit 31T transmits detection information indicating the detection result of the occurrence of a failure in the gas detector 30, which is a detection result by the first detection unit of the gas detector 30, to the outside of the gas detector 30. You can also send it.

The communication unit 31T also transmits detection information indicating the detection result by the first detection unit of the gas detector 30 and the reception of an operation instruction from the user such as stopping the alarm to the operation reception unit. It may also be transmitted outside the detector 30. Furthermore, the communication unit 31T may transmit determination information indicating the determination result by the determination unit 35 to the outside of the gas detector 30 as detection information.

Next, the communication unit 41T of the gas detector 40 transmits detection information transmitted from the communication units 31T of the plurality of gas detectors 30, which indicates the detection result of a predetermined event by the gas detector 30, to both sides. The communication is received without establishing communication with the other party (S3). Step S3 is an example of a receiving process. Note that in step S3, the display section 44 may display the detection information received by the communication section 41T.

After the communication unit 41T receives the detection information, the determination unit 45 determines whether the detection information received by the communication unit 41T satisfies a predetermined condition (S4). Step S4 is an example of a determination step. Specifically, the determination unit 45 determines whether the predetermined condition is that the concentration of the predetermined gas detected by the sensor unit SM is equal to or higher than a predetermined value.

Note that the determination unit 45 may determine whether the detection result by the first detection unit of the gas detector 30 satisfies a predetermined condition. In this case, the predetermined condition is that the detection result by the first detection section of the gas detector 30 indicates that a failure has occurred in the gas detector 30.

Further, the predetermined condition may be that the detection result by the first detection section of the gas detector 30 indicates that the operation reception section has received an operation instruction from the user such as stopping the alarm. good. Furthermore, the predetermined condition may be that the determination information received by the communication unit 41T is information indicating that the determination unit 35 of the gas detector 30 has determined to issue an alarm.

Further, the detection information received by the communication unit 41T may include alarm information indicating that the gas detector 30 is in an alarm state where an alarm is being issued by the notification unit 31H. In this case, the determination unit 45 determines whether the predetermined condition that the gas detector 30 is in the alarm state is satisfied by checking whether the detection information received by the communication unit 41T includes the above-mentioned alarm information. Determine whether or not there is.

When the determination unit 45 determines that the detection information received by the communication unit 41T does not satisfy the predetermined condition (NO in S4), the process returns to step S1. On the other hand, consider a case where the determination unit 45 determines that the detection information received by the communication unit 41T satisfies the predetermined condition (YES in S4). In this case, the control unit 41C establishes bidirectional communication between the communication unit 31T of at least some of the gas detectors 30 of the plurality of gas detectors 30 and the communication unit 41T of the gas detector 40 as a communication device. The communication section 41T of the gas detector 40 is controlled so as to do so (S5). Step S5 is an example of a communication establishment process.

The gas detector 40 enables bidirectional communication between at least some of the gas detectors 30 of the plurality of gas detectors 30 and the communication unit 41T when the detection information transmitted from the gas detector 30 satisfies a predetermined condition. The communication unit 41T is controlled to establish the communication. Thereby, when the detection information indicating the detection result of a predetermined event by the gas detector 30 satisfies a predetermined condition, communication can be established more reliably between the gas detector 30 and the gas detector 40.

Also, consider a case where the determination information received by the communication unit 41T satisfies the predetermined condition that the determination unit 35 has determined that an alarm will be issued (YES in S4). In this case, in step S5, the control unit 41C controls the communication unit 41T to establish bidirectional communication between the communication unit 31T of at least some of the gas detectors 30 and the communication unit 41T of the gas detector 40. may be controlled.

The gas detector 40 detects at least some of the gas detectors 30 when the determination information transmitted from the multiple gas detectors 30 is information indicating that it has been determined that an alarm will be issued. Two-way communication is established for 30. Thereby, users other than the user of the gas detector 30 that initially issues the alarm can also take action to ensure safety. Therefore, the safety of users of the plurality of gas detectors 30 can be ensured.

<Another example of gas detection system operation>
Next, a notification method of the gas detection system 100 will be described using FIG. 5. The processes in steps S11 to S14 shown in FIG. 5 are the same as the processes in steps S1 to S4 shown in FIG. 4, respectively.

Consider a case where, after the process in step S14, the determination unit 45 determines that the detection information received by the communication unit 41T satisfies the predetermined condition (YES in S14). In this case, the control unit 41C instructs the gas detector 30 to establish bidirectional communication with the gas detector 40 as a communication device and to issue a notification (S15). Specifically, the control unit 41C instructs at least some of the plurality of gas detectors 30 to establish bidirectional communication with the gas detector 40 and to issue a notification. do. Step S15 is an example of a notification process.

Further, in step S15, the control unit 41C controls the communication unit 41T to transmit a notification instruction to the gas detector 30 that has established bidirectional communication with the communication unit 41T, instructing the gas detector 30 to perform notification. do. Thereby, the gas detector 40 can prompt the gas detector 30 to notify after establishing bidirectional communication with the gas detector 30.

After the control unit 41C instructs the communication unit 31T to establish two-way communication with the gas detector 40 and to issue a notification, the communication unit 31T of the gas detector 30 Bidirectional communication is established with the communication unit 41T. Furthermore, the notification section 31H of the gas detector 30 performs notification (S16).

Specifically, for example, the notification unit 31H notifies an alarm. In this case, the audio output section 33 notifies the alarm by outputting a sound indicating the alarm, and the display section 34 notifies the alarm by displaying alarm information indicating the alarm. Further, the notification unit 31H may notify the user of the gas detector 30 of instructions to evacuate. In this case, the audio output unit 33 outputs audio indicating the content of the evacuation instruction, and the display unit 34 displays the content of the evacuation instruction.

When detection information indicating a detection result of a predetermined event by the gas detector 30 satisfies a predetermined condition, communication can be established more reliably between the gas detector 30 and the gas detector 40. Moreover, it is possible to prompt at least some of the gas detectors 30 of the plurality of gas detectors 30 to establish communication and perform notification.

<Supplementary information regarding the gas detection system>
In the gas detection system 100, for example, the gas detector 30a that executes the processes of steps S11 and S12 shown in FIG. 5 may be referred to as a first gas detector 30a, and the gas detector 40 may be referred to as a second gas detector 40. Further, the gas detectors 30b, 30c and 30d may be respectively referred to as third gas detectors 30b, 30c and 30d.

Further, the sensor section SM, the communication section 31T, the control section 31C, the determination section 35, the notification section 31H, the audio output section 33, and the display section 34 of the first gas detector 30a are connected to the first sensor section SM, the first communication section 31C, the They may also be referred to as a section 31T, a first control section 31C, a first determination section 35, a first notification section 31H, a first audio output section 33, and a first display section 34.

The second gas detector 40 includes a sensor section SM2, a communication section 41T, a control section 41C, a determination section 45, a notification section 41H, an audio output section 43, and a display section 44, respectively. , a second control section 41C, a second determination section 45, a second notification section 41H, a second audio output section 43, and a second display section 44.

The sensor section SM, communication section 31T, control section 31C, determination section 35, notification section 31H, audio output section 33, and display section 34 of the third gas detectors 30b, 30c, and 30d are respectively They may also be referred to as a third communication section 31T, a third control section 31C, a third determination section 35, a third notification section 31H, a third audio output section 33, and a third display section 34.

[Modification 1]
In step S5, the control unit 41C sequentially establishes one-to-one bidirectional communication between each of at least some of the gas detectors 30 and the communication unit 41T when the detection information satisfies a predetermined condition. The communication unit 41T may also be controlled. In this case, for example, the communication unit 41T sequentially establishes one-to-one bidirectional communication with the communication units 31T of the gas detectors 30a to 30d. Since one-to-one bidirectional communication between each of the plurality of gas detectors 30 and the communication unit 41T is established in sequence, the gas detector 40 performs bidirectional communication with each of the plurality of gas detectors 30. be able to.

[Modification 2]
In step S5, the control unit 41C may control the communication unit 41T to maintain one-to-many communication connection between the communication unit 41T and each of at least some of the gas detectors 30. . In this case, the control unit 41C causes the communication unit 41T to establish bidirectional communication with each of the communication unit 41T and at least some of the gas detectors 30 in turn while maintaining the connection state. Control. At this time, the control unit 41C controls the communication unit 41T so that communication timings do not overlap in bidirectional communication.

[Modification 3]
In step S15, the control unit 41C may transmit a notification instruction to the gas detector 30 that has established bidirectional communication with the communication unit 41T, instructing it to output audio. In this case, in step S16, the audio output unit 33 outputs audio. As a result, the user of the gas detector 30 who has received the notification instruction can check the audio from the audio output unit 33, so even if the user is not operating the gas detector 30, he or she can take immediate action to ensure safety. Can be done.

[Modification 4]
In step S5, the control unit 41C excludes, among the plurality of gas detectors 30, the gas detector 30 that has transmitted detection information that satisfies a predetermined condition from a communication establishment target for establishing bidirectional communication with the communication unit 41T. You may. In this case, the control unit 41C establishes bidirectional communication between the communication unit 41T and the gas detectors 30 other than the gas detector 30 excluded from the communication establishment target among the plurality of gas detectors 30. Controls the communication section 41T.

By excluding the gas detector 30 that has transmitted detection information that satisfies the predetermined conditions from the targets for establishing communication, the time required to establish communication with the gas detector 30 excluded from the targets for establishing communication can be omitted. Therefore, bidirectional communication can be efficiently established between the gas detector 40 and the gas detectors 30 other than the gas detectors 30 excluded from the targets for communication establishment.

[Modification 5]
In step S5, the control unit 41C selects the gas detector 30 that has transmitted detection information that satisfies a predetermined condition among the plurality of gas detectors 30 as a communication establishment target for establishing bidirectional communication with the communication unit 41T. The communication unit 41T may be controlled to include the information. Further, in step S5, the control unit 41C prioritizes other gas detectors 30 over the gas detector 30 that has transmitted detection information that satisfies the predetermined conditions, and communicates with both the other gas detectors 30 and the communication unit 41T. The communication unit 41T may be controlled to establish communication between the two parties.

[Modification 6]
Group setting information may be stored in a storage unit (not shown) included in the gas detector 40. The group setting information is information in which at least one gas detector 30 with which the communication unit 41T can communicate is set. The communication unit 41T may be able to communicate with the gas detector 30 that is set using the group setting information stored in the storage unit. In this case, in step S4, the determination unit 45 determines whether the detection information transmitted from the communication unit 31T of the gas detector 30 set in the group setting information satisfies a predetermined condition.

The user of the gas detector 40 can change the group setting information by operating an operation reception unit (not shown) included in the gas detector 40. Thereby, the user of the gas detector 40 can specify the gas detector 30 with which the gas detector 40 can communicate.

[Modification 7]
In step S2 of the present embodiment, the communication unit 31T of the gas detector 30 transmits concentration information indicating the respective concentrations of different types of predetermined gases detected by the plurality of sensor units SM to the outside of the gas detector 30. You can also send it. In this case, in step S4, the determination unit 45 may determine whether the predetermined condition is that the concentration of at least one type of predetermined gas among the plurality of types of predetermined gases is equal to or higher than a predetermined value.

[Modification 8]
In this embodiment, the gas detector 30 may include a temperature/humidity detector (not shown) that detects the temperature and humidity around the gas detector 30. Further, the gas detector 30 includes an information generating section (not shown) that generates heat information indicating the degree of heat from the temperature and humidity around the gas detector 30 detected by the temperature/humidity detecting section. It's okay. The temperature and humidity detection section is an example of the first detection section.

The temperature and humidity detection section is a temperature and humidity sensor built into the main body section 31, and the information generation section is included in the control section 31C. The heat information may be, for example, information indicated by a heat index (WBGT: Wet Bulb Globe Temperature), or may be information indicated by a color depending on the degree of heat. Furthermore, the gas detector 30 includes a temperature detector that detects the temperature around the gas detector 30 and a humidity detector that detects the humidity around the gas detector 30 instead of the temperature and humidity detector. It's okay. The temperature detection section and the humidity detection section are examples of the first detection section.

The communication unit 31T may transmit the heat information generated by the information generation unit to the outside of the gas detector 30 as detection information in step S2. In this case, in step S4, the determination unit 45 determines whether the heat information received by the communication unit 41T satisfies a predetermined condition of being equal to or greater than a predetermined value.

[Modification 9]
In step S2, the communication unit 31T may transmit the connection request information to the outside of the gas detector 30 using the detection of a predetermined event by the first detection unit of the gas detector 30 as a trigger.

Further, the communication unit 31T may periodically transmit connection request information to the outside of the gas detector 30. In this case, in step S2, when the first detection unit of the gas detector 30 detects a predetermined event, the communication unit 31T transmits the connection request at the regular transmission timing of the connection request information following the detection of the predetermined event. Send information including detection information.

Furthermore, consider a case where the communication unit 31T similarly periodically transmits connection request information to the outside of the gas detector 30. In this case, in step S2, when the first detection unit of the gas detector 30 detects a predetermined event, the communication unit 31T detects the predetermined event without waiting for the regular transmission timing of the connection request information following the detection of the predetermined event. Connection request information including the information may be transmitted. Note that the communication unit 31T may shorten the period of periodic transmission of the connection request information and transmit the connection request information including the detection information in step S2.

Furthermore, when the communication unit 31T periodically transmits connection request information to the outside of the gas detector 30, the periodically transmitted connection request information may always include information regarding a predetermined event. Further, the communication unit 31T may include information indicating that the predetermined event has been detected in the connection request information that is periodically transmitted only when the first detection unit detects the predetermined event.

[Modification 10]
The control section 41C of the gas detector 40 does not need to include the determination section 45. In this case, after step S1, the determination unit 35 of the gas detector 30 determines whether the detection information satisfies a predetermined condition, and in step S2, the communication unit 31T of the gas detector 30 determines whether or not the detection information satisfies a predetermined condition. The determination result and detection information are transmitted to the outside of the gas detector 30. Then, in step S3, the communication unit 41T of the gas detector 40 receives the determination result and the detection information, and the control unit 41C responds to the determination result by the determination unit 35 without executing the process of step S4. The process of step S5 is executed.

The present disclosure is not limited to the embodiments described above, and various changes can be made within the scope of the claims, and the present disclosure also includes configurations obtained by appropriately combining technical means disclosed in the embodiments. Within the technical scope of disclosure.

30, 30a-30d Gas detector (detector)
40 Gas detector (communication device)
41C Control section 31H Notification section 41T Communication section 35 Judgment section (first detection section)
SM sensor section (first detection section)
SM2 sensor section (second detection section)

Claims (9)

Detection information transmitted from a plurality of detectors that include a first detection unit that detects a predetermined event and that can communicate with the outside, the detection information indicating a detection result of the predetermined event by the first detection unit, a communication unit capable of receiving data without establishing two-way communication;
When the detection information received by the communication unit satisfies a predetermined condition, one-to-one two-way communication is established in sequence between each of at least some of the plurality of detectors and the communication unit. A communication device comprising: a control section that controls the communication section. Detection information transmitted from a plurality of detectors that include a first detection unit that detects a predetermined event and that can communicate with the outside, the detection information indicating a detection result of the predetermined event by the first detection unit, a communication unit capable of receiving data without establishing two-way communication;
The communication unit is configured to establish bidirectional communication between at least some of the plurality of detectors and the communication unit when the detection information received by the communication unit satisfies a predetermined condition. A control unit for controlling the
The communication unit is characterized in that the control unit controls the communication unit to transmit a notification instruction to the detector that has established two-way communication with the communication unit, instructing the detector to perform notification. Device. Detection information transmitted from a plurality of detectors that include a first detection unit that detects a predetermined event and that can communicate with the outside, the detection information indicating a detection result of the predetermined event by the first detection unit, a communication unit capable of receiving data without establishing two-way communication;
The communication unit is configured to establish bidirectional communication between at least some of the plurality of detectors and the communication unit when the detection information received by the communication unit satisfies a predetermined condition. A control unit for controlling the
The control unit includes:
Among the plurality of detectors, excluding the detector that has transmitted the detection information from a communication establishment target for establishing bidirectional communication with the communication unit,
A communication device that controls the communication unit to establish bidirectional communication between the communication unit and a detector other than the detector excluded from the communication establishment target among the plurality of detectors. . The communication device according to any one of claims 1 to 3, further comprising a second detection unit that detects the predetermined event. The control unit controls the communication unit to establish bidirectional communication between two or more of the detectors and the communication unit when the detection information satisfies the predetermined condition. The communication device according to any one of claims 1 to 3. The plurality of detectors are
a sensor unit that detects the concentration of a predetermined gas as the predetermined event;
a determination unit that determines whether to issue an alarm according to the concentration of the predetermined gas detected by the sensor unit, as the first detection unit;
If the determination unit determines to issue a warning, the device includes a notification unit that issues a warning;
The communication unit is capable of receiving determination information indicating a determination result by the determination unit as the detection information,
The control unit detects at least a portion of the detection information when the determination information received by the communication unit satisfies the predetermined condition that the determination unit has determined to issue an alarm. 4. The communication device according to claim 1 , wherein the communication device is controlled to establish bidirectional communication between the device and the communication device. Detection information transmitted from a plurality of detectors that detect a predetermined event, the detection information indicating a detection result of the predetermined event by the detectors, is received by a communication device without establishing two-way communication. receiving process;
a determination step of determining whether the detection information received in the reception step satisfies a predetermined condition;
If it is determined in the determination step that the predetermined condition is satisfied, one-to-one two-way communication is established between each of at least some of the plurality of detectors and the communication device in order ; A communication establishment method comprising: a communication establishment step of controlling the communication device. Detection information transmitted from a plurality of detectors that detect a predetermined event, the detection information indicating a detection result of the predetermined event by the detectors, is received by a communication device without establishing two-way communication. receiving process;
a determination step of determining whether the detection information received in the reception step satisfies a predetermined condition;
Communication that controls the communication device so as to establish bidirectional communication between at least some of the plurality of detectors and the communication device when it is determined in the determination step that the predetermined condition is satisfied. Establishment process ;
In the communication establishment step, among the plurality of detectors, the detector that has transmitted the detection information is excluded from the communication establishment target for establishing bidirectional communication with the communication device, and among the plurality of detectors, the . A communication establishment method, comprising controlling the communication device to establish bidirectional communication between the communication device and a detector other than the detector excluded from the communication establishment target . detecting a predetermined event;
a step of transmitting detection information indicating a detection result of the predetermined event detected in the step of detecting the predetermined event to the outside from a plurality of detectors;
a step of receiving the detection information transmitted from the plurality of detectors by a communication device without establishing bidirectional communication in the step of transmitting the detection information from the plurality of detectors to the outside ;
Establishing bidirectional communication with the communication device for at least some of the plurality of detectors when the detection information received in the step of receiving by the communication device satisfies a predetermined condition. a step of instructing the detector with which two-way communication has been established with the detector to issue an alarm;
A notification method comprising the step of causing the detector to perform notification based on an instruction from the communication device .

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