JP2021174320A - Sensor authentication registration system - Google Patents

Abstract

To provide a sensor authentication registration system capable of easily performing authentication and registration while avoiding external fraudulent registration.SOLUTION: A sensor authentication registration system 1 includes plural sensors 10 which are mounted on one or two or more object-of-sensing apparatuses 19 disposed within an object-of-management area, and each of which detects a state quantity of the object-of-sensing apparatus 19, and a designation apparatus 20 that stores each piece of mounting information on the plural sensors 10. The plural sensors 10 and designation apparatus 20 can mutually wirelessly communicate. A radio wave strength measurement unit that measures the strength of a radio wave sent during wireless communication is incorporated in at least one of the sensors 10 and designation apparatus 20. When detecting presence of the sensor 10 whose mounting information is not stored, the designation apparatus 20 can accept an authentication operation with which mounting information is stored when the strength of the radio wave measured by the radio wave strength measurement unit is equal to or larger than a threshold.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sensor authentication registration system, and more particularly to a sensor authentication registration system capable of easily performing authentication registration while avoiding unauthorized registration from the outside.

For example, in a pump facility that transfers a fluid, a sensor provided in the pump generally detects a state quantity such as vibration, temperature, and flow rate. As a system equipped with such pump equipment, information on a state quantity detected by a sensor provided in the pump is transmitted to a terminal device such as a smartphone, a tablet terminal, or a personal computer via a control device, and the terminal device is provided. There is something to be displayed on the display unit (see, for example, Patent Document 1).

JP-A-2019-113369

Normally, in order to enable communication between the sensor and the terminal device, authentication registration for associating the sensor and the terminal device is performed. In order to easily perform this authentication registration, it is conceivable to use radio waves emitted by the sensor. However, if the strength of radio waves is increased in an attempt to authenticate and register multiple sensors at the same time, there is a risk of unauthorized registration from the outside, and on the other hand, in order to avoid unauthorized registration, individual setting work is attempted without using radio waves. Then, as the number of sensors registered for authentication increases, the setting work becomes more complicated.

In view of the above problems, an object of the present invention is to provide a sensor authentication registration system capable of easily performing authentication registration while avoiding unauthorized registration from the outside.

In order to achieve the above object, the sensor authentication registration system according to the first aspect of the present invention is, for example, as shown in FIGS. 1 and 2, one or more sensing target devices arranged in the management target area. A plurality of sensors 10 installed in 19 include a plurality of sensors 10 for detecting the state amount of the device 19 to be sensed; and a setting device 20 for individually storing installation information of the plurality of sensors 10. Each of the 10 and the setting device 20 are configured to enable wireless communication with each other, and a radio field intensity measuring unit 24 for measuring the strength of the radio wave in the wireless communication is provided on at least one of the sensor 10 and the setting device 20. When the setting device 20 detects the presence of the sensor 10 for which the installation information is not stored, the setting device 20 is configured to enable an authentication operation for storing the installation information when the intensity of the radio wave measured by the radio wave intensity measuring unit 24 is equal to or higher than the threshold value. ing.

With this configuration, it is possible to authenticate the sensor when the strength of the radio wave is equal to or higher than the threshold value. Therefore, it is required to bring the setting device closer to the sensor for authentication, and unauthorized registration from the outside away from the sensor. It is possible to easily perform authentication registration while avoiding the above.

Further, in the sensor authentication registration system according to the second aspect of the present invention, for example, as shown in FIG. 2, in the sensor authentication registration system 1 according to the first aspect of the present invention, the setting device 20 relates to the sensor 10. It has a display unit 22 for displaying information.

With this configuration, information about the sensor can be visually confirmed.

Further, the sensor authentication registration system according to the third aspect of the present invention is shown with reference to, for example, FIGS. 2 and 3, in the sensor authentication registration system 1 according to the second aspect of the present invention, the setting device 20. Is configured to display the item of installation information about the sensor 10 that stores the installation information on the display unit 22 at the time of the authentication operation.

With this configuration, the authentication operation can be performed while checking the information of the sensor that stores the installation information.

Further, the sensor authentication registration system according to the fourth aspect of the present invention is shown in, for example, with reference to FIG. 7B, in any one of the first to third aspects of the present invention. In the sensor authentication registration system 201, the sensor 210 is configured to receive and store the installation information stored in the setting device 20 from the setting device 20 by wireless communication, and after the storage of the installation information is completed. It is configured to increase the intensity of the radio wave transmitted from the sensor 210.

With this configuration, the setting devices that can be authenticated by transmitting relatively weak radio waves until the authentication operation is performed are limited to those that exist in a short distance, and after the authentication operation is performed, strong radio waves are transmitted. By doing so, the state quantity detected by the sensor can be received by the setting device at a relatively long distance.

According to the present invention, since it is possible to perform an operation of authenticating the sensor when the radio wave intensity is equal to or higher than the threshold value, it is required to bring the setting device closer to the sensor for authentication, and unauthorized registration from the outside away from the sensor is required. It is possible to easily perform authentication registration while avoiding the above.

It is a schematic block diagram of the detection system which concerns on embodiment of this invention. It is a schematic block diagram of one sensor and a portable device which constitute the detection system which concerns on embodiment of this invention. It is a figure which shows the example of the information which is displayed on the display part. It is a flowchart explaining the procedure of performing the authentication registration of the newly installed sensor in the detection system which concerns on embodiment of this invention. It is a flowchart explaining the procedure of collecting the state quantity detected by the sensor registered for authentication. It is a figure which shows the example of the inspection state displayed on the display part. (A) is a schematic configuration diagram of one sensor and a portable device constituting the detection system according to the modified example of the embodiment of the present invention, and (B) is related to another modified example of the embodiment of the present invention. It is a schematic block diagram of one sensor and a portable device which make up a detection system.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, members that are the same as or correspond to each other are designated by the same or similar reference numerals, and duplicate description will be omitted.

First, the detection system 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic configuration diagram of the detection system 1. The detection system 1 includes a plurality of sensors 10 and a portable device 20.

The sensor 10 is attached to the sensing target device 19 (hereinafter, simply referred to as “target device 19”). As the target device 19, a pump device can be typically mentioned, but other than the pump device, a rotating device including a fan, a blower, or the like, or a device such as a heat source device may be used. The target device 19 is installed in the management target area. The management target area is, for example, a place where a target device 19 in which a sensor 10 for acquiring information (state quantity) is installed is arranged, such as a machine room of a factory or an office building. In FIG. 1, the target device 19A has a sensor 10A mounted on a motor, a sensor 10B mounted on a pedestal, and a sensor 10C mounted on a bearing, and the target device 19B is a sensor mounted on a bearing. An example is shown in which the 10D and the sensor 10E attached to the pump housing are provided. Each of the sensors 10A, 10B, 10C, 10D, and 10E is an independent sensor that detects a state quantity with respect to the attached portion, but is collectively referred to as "sensor 10" when describing common properties. Similarly, the target devices 19A and 19B each exhibit independent functions, but when explaining common properties, they are collectively referred to as "target device 19".

In the example shown in FIG. 1, the target device 19A has three sensors 10A, 10B, 10C, and the target device 19B has two sensors 10D, 10E. The number of attached sensors 10 may be increased or decreased as necessary, and the number of target devices 19 may be increased or decreased as necessary. A mode in which the detection system 1 includes a plurality of sensors 10 is typically a case where a plurality of target devices 19 in which a plurality of sensors 10 are installed are provided in one unit, but one sensor 10 is provided in one unit. A plurality of target devices 19 in which the above devices are installed may be provided, or one target device 19 in which a plurality of sensors 10 are installed may be provided in one device, and a plurality of sensors 10 are installed in one device. A plurality of target devices 19 and a target device 19 in which one sensor 10 is installed may be provided in total.

Here, the configurations of the sensor 10 and the portable device 20 will be described with reference to FIG. FIG. 2 is a schematic configuration diagram of one sensor 10 and a portable device 20 constituting the detection system 1. The sensor 10 is typically configured to receive a part of the electric power supplied to the target device 19 (usually the electric power from the commercial power source) to operate, and as an aid when the commercial power source fails. A battery may be installed side by side, or it may be configured to operate only on the battery without using a commercial power source. The sensor 10 includes a communication unit 11, a state quantity detection unit 12, and an installation information storage unit 13. The communication unit 11 is a portion having parts necessary for wireless communication with the portable device 20 such as an antenna. The communication unit 11 is configured to be able to exchange data with the state quantity detection unit 12 and the installation information storage unit 13, and transmits data to the portable device 20 to the state quantity detection unit 12 and the installation information. The data received from the storage unit 13 and received from the portable device 20 can be delivered to the installation information storage unit 13.

The state quantity detecting unit 12 detects the state quantity of the portion of the target device 19 to which the sensor 10 is attached. Examples of the state amount detected by the state amount detecting unit 12 of the sensor 10 include vibration, temperature, pressure, current, and the like, and typically one sensor 10 is configured to detect one type of state amount. However, one sensor 10 may be configured to detect a plurality of types of state quantities. In the present embodiment, the sensor 10A detects the current, the sensors 10B, 10C, and 10D each detect the vibration, and the sensor 10E detects the pressure.

The installation information storage unit 13 is a portion that can store information necessary for identifying each sensor 10 and also can store information that contributes to utilization of the state amount detected by the sensor 10. Specifically, the installation information storage unit 13 stores a unique address that identifies the sensor 10. The unique address is an address assigned to each sensor 10, and is the only address that can be distinguished from other sensors 10 other than the sensor 10. In the present embodiment, the installation information storage unit 13 also stores the product-specific address. The product-specific address is an address that specifies the type of the sensor 10, and if the types are the same (typically the same product), the same address is assigned. That is, the same product-specific address may be assigned to a plurality of sensors 10. Further, the installation information storage unit 13 is configured to be able to store information related to the installation of the sensor 10 (hereinafter referred to as “installation information”) after the fact. Examples of the installation information of the sensor 10 include an installation location (where it is installed in the management target area), an installation location (where it is installed in the target device 19), an installation model (type of the target device 19), and the like.

The portable device 20 is a device (device) capable of performing authentication registration of each sensor 10, and is also a device (device) for collecting a state quantity detected by the sensor 10 for which authentication registration has been performed. That is, in the present embodiment, the portable device 20 also serves as a setting device and a data collecting device. As the portable device 20, a tablet-type mobile terminal can be typically used, but a smartphone or a laptop (notebook computer) may be used. As shown in FIG. 1, the portable device 20 may have a communication function to an external device 99 such as an external server (including a cloud). In the present embodiment, the portable device 20 includes a communication unit 21, a display unit 22, an installation information storage unit 23, a radio wave intensity measurement unit 24, a certified sensor storage unit 25, a speaker 26, and a vibration generation unit. It has 27, a position information storage unit 28, and a data acquisition identification unit 29, and these are configured so that data can be exchanged directly or indirectly with each other.

The communication unit 21 has parts such as an antenna necessary for wireless communication with the sensor 10, and also has parts necessary for wireless communication or wired communication with the external device 99. Is. The communication unit 21 passes the data received from the sensor 10 and / or the external device 99 to a necessary part (for example, the display unit 21 or the radio field intensity measuring unit 24) in the portable device 20, and the sensor 10 and / or the external device. It is configured so that the data to be transmitted toward 99 can be received from a necessary part in the portable device 20.

The display unit 22 is a portion for displaying information related to the sensor 10, and typically includes a display. Examples of information related to the sensor 10 include the unique address of the sensor 10, the strength of the radio wave emitted by the sensor 10, whether or not the sensor 10 is authenticated, and whether or not the sensor 10 is undergoing an authentication operation. Further, the display unit 22 may be configured to be able to display an item of installation information of the sensor 10 to be registered. It is preferable that the installation information item displayed on the display unit 22 can be selected from the candidates registered in advance by the pull-down menu or the like from the viewpoint of simplifying the authentication operation, but the setter must directly input the item. May be.

FIG. 3 shows an example of information displayed on the display unit 22. FIG. 3A is an example of a list display screen that individually displays the radio field strength, the unique address, and the presence / absence of authentication for the plurality of sensors 10. FIG. 3B is an example of an authentication screen indicating that the sensor 10 is in the process of authentication. FIG. 3C is an example of an installation information setting screen in which the items of the installation information of the sensor 10 to be registered are displayed from the candidates registered in advance by the pull-down menu. FIG. 3D is an example of a list display screen in which installation information is added to some sensors 10 (sensor A).

The installation information storage unit 23 is a portion that individually stores the installation information of the sensor 10 that has been registered for authentication. The installation information storage unit 23 may determine the storable capacity (storage) in consideration of the number of sensors 10 to be authenticated. The radio wave intensity measuring unit 24 is a portion that measures the intensity of the radio wave emitted by the sensor 10. The radio wave intensity measuring unit 24 may be configured to detect the intensity of radio waves with a specific numerical value, and is configured to detect which range belongs to in a pre-divided range (for example, every 10 dBm). You may be. The authenticated sensor storage unit 25 is configured to store the unique address of the sensor 10 for which authentication has been completed. Further, the authenticated sensor storage unit 25 may be configured to store the product-specific address of the sensor 10 for which authentication has been completed. The authenticated sensor storage unit 25 is configured to cooperate with the installation information storage unit 23 to associate the unique address stored in the authenticated sensor storage unit 25 with the installation information stored in the installation information storage unit 23. Has been done.

The speaker 26 is for outputting information transmitted to an operator or the like of the portable device 20 as sound. The speaker 26 is configured to be capable of emitting voice, a melody, and a buzzer sound. The vibration generating unit 27 is for outputting information transmitted to the operator or the like of the portable device 20 as vibration, and typically includes a vibrator.

The position information storage unit 28 is a portion that stores the position of the sensor 10 that has been registered for authentication so that the radio wave transmitted from the sensor 10 can be received with an intensity equal to or higher than the threshold value. The position information storage unit 28 typically includes a GPS receiver, and is configured to be able to identify and store a desired position using GPS. The data acquisition identification unit 29 is a part for selecting the sensor 10 for collecting the state amount when collecting the state amount detected by the sensor 10 registered for certification. Since the time and cycle in which collection is required may differ depending on the installation position of the sensor 10 (the type of state amount detected by the sensor 10), the state amount to be collected may be selected from the sensor 10 for collecting the state amount. I am trying to do it. By selecting the sensor 10 that collects the state amount, the communication amount can be reduced and the state amount can be efficiently collected.

Each sensor 10 and the portable device 20 are configured to enable wireless communication with each other. The means of wireless communication are typically international standards (IEEE802.5.4, IEEE802.5.1, IEEE802.15.11a, 11b, 11g, 11n, 11ac, 11ad, ISO / IEC14513-3-10, IEEE802. .15.4g) method (Bluetooth®, Bluetooth Low Energy, Wi-Fi, ZigBee®, Sub-GHz, EnOcean®, etc.) communication means is used.

Next, the operation of the detection system 1 will be described with reference to FIGS. 4 and 5. FIG. 4 is a flowchart illustrating a procedure for performing authentication registration of the newly installed and unauthenticated sensor 10 in the detection system 1. FIG. 5 is a flowchart illustrating a procedure for collecting the state quantity detected by the sensor 10 registered for authentication. In the following description of the operation of the detection system 1, when the configuration of the detection system 1 is referred to, FIGS. 1 to 3 will be referred to as appropriate. First, the procedure (authentication process) for registering the authentication of the sensor 10 will be described with reference to FIG.

As described above, the target device 19 is provided with a plurality of sensors 10 in order to detect various state quantities. When constructing the detection system 1, if the sensor 10 having no installation information is attached to the target device 19, the target device 19 is installed in the management target area, and then the installation information is associated with the sensor 10, the management is performed. It is easy and convenient. When the portable device 20 and the sensor 10 perform wireless communication, even if they are separated from each other, the amount of the state detected by the sensor 10 can be viewed by the portable device 20 or the sensor 10 by the portable device 20 as long as the radio waves can reach. Can be set. However, when the sensor 10 is already installed in the target device 19 but the installation information of the sensor 10 is not set, it is desirable to detect a specific state quantity (for example, current) of the target device 19 (for example, the target device 19A). It is not possible to specify the sensor 10 that detects the state quantity of the above, and there is a possibility that an unintended state quantity is acquired. In addition, there is a possibility that an unintended sensor 10 may be set incorrectly. Further, if the sensor 10 can be set by any portable device 20 that has a wide range of radio waves and can receive the radio waves emitted by the sensor 10, an outsider may unintentionally change the setting. There is sex. In order to avoid such inconvenience, the detection system 1 sets the sensor 10 according to the procedure described below.

The sensor 10 attached to the target device 19 arranged in the management target area includes a unique address and a product unique address regardless of whether authentication registration is performed (installation information is registered) or not. Telegrams (a set of data written in a certain format and sent and received between computers) are sent regularly. In addition to the sensor 10, there may be a device that transmits a telegram containing some information. The portable device 20 is held by the operator, moves with the operator, and receives a telegram when it enters a range in which it can capture radio waves transmitted by something (S1). When the portable device 20 receives the telegram, it analyzes the received telegram and determines whether or not the source of the telegram is the sensor 10 (S2). Whether or not the source of the received telegram is the sensor 10 can be determined by grasping whether or not the product-specific address included in the analyzed telegram is the address indicating the sensor 10. If the source of the received telegram is not the sensor 10, the process returns to the step (S1) of receiving the telegram again. On the other hand, when the source of the received telegram is the sensor 10, the information currently held by the sensor 10 is displayed as a list on the display unit 22 of the portable device 20 (S3). Here, the list displayed on the display unit 22 is as shown in FIG. 3A, for example. In the example shown in FIG. 3A, in addition to the unique address of the sensor 10, the intensity of the radio wave measured by the radio wave intensity measuring unit 24 and the like are shown. The portable device 20 cannot receive the state quantity, installation information, or the like from the unauthenticated sensor 10.

The portable device 20 collates with respect to the sensor 10 displayed in the list whether or not the unique address included in the received and analyzed telegram is included in the unique address stored in the authenticated sensor storage unit 25. Therefore, it is determined whether or not the sensor 10 has been authenticated (S4). If the unique address included in the received and analyzed message is not included in the unique address stored in the authenticated sensor storage unit 25, the portable device 20 determines that the sensor 10 has not been authenticated. Then, a display prompting the authentication is displayed on the display unit 22 (S5). The display prompting authentication may be, for example, the message "Authenticate with the sensor. Bring the device closer to the sensor." As shown in Fig. 3 (B). In the detection system 1, in order to prevent unauthorized registration from the outside (unintentional authentication registration by an outsider), authentication registration is permitted when the radio wave measured by the radio wave intensity measuring unit 24 exceeds the threshold value. It has become. The threshold value here is typically set to the intensity of radio waves that cannot be captured outside the controlled area, and from the viewpoint of further strengthening the prevention of unauthorized registration from the outside, the sensor 10 is at a close distance (typically a mobile phone). It is preferable to set the intensity of the radio wave that can be captured by the device 20 (the distance when the device 20 is held over the sensor 10). By setting the threshold value in this way, unauthorized registration by an outsider who cannot enter the managed area is prevented.

After the step (S5) of displaying the display prompting the authentication on the display unit 22, the portable device 20 determines whether or not the intensity of the radio wave measured by the radio wave intensity measuring unit 24 is equal to or greater than the threshold value (S6). If it is not equal to or higher than the threshold value, the step (S5) of displaying prompting for authentication is continued. On the other hand, when the value is equal to or higher than the threshold value, the portable device 20 stores (stores) the unique address of the sensor 10 in the authenticated sensor storage unit 25 (S7). By storing the unique address in the authenticated sensor storage unit 25, the authentication registration of the sensor 10 is completed, and the sensor 10 becomes the authenticated sensor 10. By registering the sensor 10 in the portable device 20 as authenticated, when a telegram including the detected state quantity is transmitted, the sensor 10 is received by the portable device 20 at the time of authentication registration. In addition, in order to avoid erroneous authentication when a suddenly high radio wave strength is received for some reason, "when the strength of the radio wave received at a predetermined time is equal to or higher than the threshold value" and / or "threshold". When a radio wave having the above intensity is received a predetermined number of times, the unique address may be stored in the authenticated sensor storage unit 25 and registered for authentication. Further, in the present embodiment, in the step (S7) of storing the unique address of the sensor 10 to be authenticated and registered in the authenticated sensor storage unit 25, the convenience when collecting the state amount detected by the sensor 10 later is improved. From the viewpoint, the position information of the portable device 20 at that time is also stored in the position information storage unit 28.

At this point, the portable device 20 has the unique address and position information of the sensor 10 registered for authentication, but does not have the installation information of the sensor 10. Therefore, the installation information of the sensor 10 cannot be displayed on the display unit 22, and it is not possible to intuitively grasp what kind of state quantity it is when the state quantity data is later collected from the sensor 10. Therefore, in the present embodiment, the installation information is set after the step (S7) of storing the unique address of the sensor 10 to be authenticated and registered in the authenticated sensor storage unit 25 (S8). In the step (S8) of setting the installation information, in the present embodiment, the items of the installation information of the sensor 10 to be registered, which are registered in the installation information storage unit 23 in advance, are as shown in FIG. 3 (C). Since it is displayed on the display unit 22 in the pull-down menu, the installation information can be easily set by simply selecting and deciding from the pull-down menu. When the installation information is set, as shown in FIG. 3D, a list in which the installation information is added to the list shown in FIG. 3A can be displayed on the display unit 22. In the present embodiment, the installation information set in the portable device 20 is transmitted to the sensor 10 by wireless communication and stored in the installation information storage unit 13 of the sensor 10. When the installation information is set (S8), the authentication registration of the sensor 10 is completed. In this state, the portable device 20 can receive the state quantity detected by the authentication-registered sensor 10 as a telegram. Even if the sensor 10 has been authenticated in the step (S4) of determining whether or not the sensor 10 has been authenticated, the authentication registration of the sensor 10 is completed, and in this state, the portable device 20 is the sensor registered for authentication. It is possible to receive the state quantity detected by 10 as a message.

Next, with reference to FIG. 5, a procedure for collecting the state quantity detected by the authentication-registered sensor 10 will be described. Each sensor 10 certified and registered by the flow shown in FIG. 4 described above is stored in the portable device 20 and can be displayed in a list. For the sensors 10 listed in the list display, the portable device 20 can collect the data of the state amount detected by them. Since the sensors 10 listed in the list display may need to collect the detected state quantity at different times, the data acquisition identification unit 29 uses the sensor 10 for acquiring the state quantity every time the inspection is performed. It is possible to select. In the present embodiment, when the item to be inspected is selected from the menu displayed on the portable device 20, as shown in FIG. 6A, the inspection list is obtained for each sensor 10 registered for authentication and displayed in a list. A button on the touch panel is displayed that allows you to choose to add to. The operator of the portable device 20 (typically, the performer of the inspection) creates an inspection list in which the sensor 10 whose state quantity is to be acquired is selected from the sensors 10 displayed in the list (S11).

After creating the inspection list, the operator starts patrol of the inspection route (S12). As the inspection route, the route that passes near the position where the sensor 10 is installed may be determined in order with reference to the installation information of the sensor 10 added to the inspection list. After the patrol of the inspection route is started, the portable device 20 determines whether or not the vicinity of the sensor 10 to be inspected has been reached (S13). Since the position information of the sensor 10 registered for certification is stored in the position information storage unit 28, when the portable device 20 reaches the vicinity of the stored position, the position information storage unit 28 notifies that fact. It can be detected. Since the determination of whether or not the sensor 10 to be inspected has been reached is performed by the portable device 20 alone in the detection system 1, it is not affected by the operating state of the sensor 10. As a criterion for determining that the sensor 10 to be inspected has been reached, typically, a case where the radio wave transmitted from the sensor 10 has reached a position where the radio wave transmitted from the sensor 10 can be received with an intensity equal to or higher than the threshold value can be adopted. However, if it is desired to notify the existence of the sensor 10 in a wider range than this, the intensity of the radio wave transmitted from the sensor 10 is lower than the threshold value, but a predetermined intensity (an arbitrary value can be set depending on the situation). When it reaches a position where the radio wave can be captured, it may be determined that the sensor 10 to be inspected has reached the vicinity of the sensor 10. However, in the present embodiment, the telegram including the state quantity can be received from the sensor 10 when the intensity of the radio wave transmitted from the sensor 10 reaches a position equal to or higher than the threshold value.

In the step (S13) of determining whether or not the sensor 10 to be inspected has reached the vicinity, if it has not reached, the process returns to the same step (S13) again. On the other hand, when it reaches the vicinity of the sensor 10 to be inspected, the operator is notified to that effect (S14). The notification to the operator is typically performed by displaying the fact on the display unit 22, but instead of or together with this display, the sound output from the speaker 26 and / or the vibration generating unit The vibration in 27 may be generated. By notifying that the portable device 20 has reached the vicinity of the sensor 10 to be inspected, it is possible to prevent the operator from forgetting to collect the state quantity from the sensor 10. As an example of the notification to the display unit 22, the message shown in the item of “sensor D” in FIG. 6 (B) may be posted. After notifying the operator (S14), the portable device 20 determines whether or not the reception of the telegram including the state quantity is started from the target sensor 10 (S15). As described above, the portable device 20 is in a state where it can receive a telegram including a state quantity from the sensor 10 when it reaches a position where it can receive radio waves transmitted from the sensor 10 with an intensity equal to or higher than a threshold value. .. The reception may be started when the message including the state quantity can be received from the sensor 10, but before the reception is started, the encryption key exchange procedure is attempted between the portable device 20 and the sensor 10. After the encryption key exchange procedure is successful, the security may be improved by starting the reception of the message including the state quantity from the sensor 10. After the encryption key exchange procedure is successful, the installation information stored in the installation information storage unit 13 of the sensor 10 and the installation information stored in the installation information storage unit 23 of the portable device 20 are collated, and both are collated. You may confirm that the two are associated by matching, and if the matching results do not match, the installation information stored in the portable device 20 has been overwritten (changed). It is assumed that the installation information set in the sensor 10 is correct, and the installation information stored in the portable device 20 may be updated.

In the step (S15) of determining whether or not the reception of the telegram including the state quantity is started from the target sensor 10, when the reception of the telegram from the sensor 10 is started, the portable device 20 displays the sensor 10 on the display unit 22. Indicates that communication is in progress (S16). As an example of the display on the display unit 22 here, the message shown in the item of “sensor A” in FIG. 6C may be posted. By displaying on the display unit 22 that communication with the sensor 10 is in progress, the operator holding the portable device 20 moves away from a position where the radio wave transmitted from the sensor 10 can be received with an intensity equal to or higher than the threshold value. It is possible to suppress the storage. While the portable device 20 is acquiring data related to the state quantity from the sensor 10, instead of displaying the data on the display unit 22 or displaying the data on the display unit 22, a melody is output from the speaker 26 and / or The vibration generation unit 27 may generate vibration. When the reception of the telegram including the state quantity from the sensor 10 is completed, the portable device 20 acquires the data regarding the state quantity detected by the sensor 10 (S17).

In the step (S15) of determining whether or not the reception of the telegram including the state quantity is started from the target sensor 10 by returning a little, if the reception of the telegram from the sensor 10 is not started, the portable device 20 is displayed on the display unit. The operator is notified via 22 that communication is not possible (S18). One of the reasons why the portable device 20 and the sensor 10 cannot communicate with each other is that power is not supplied to the sensor 10. As a case where power is not supplied to the sensor 10, it is conceivable that a power failure occurs or a battery runs out even when a battery is provided. By notifying the operator that communication is not possible each time a wireless communication with each sensor 10 is attempted, it is possible to quickly grasp the sensor 10 that needs to be dealt with. As an example of the display on the display unit 22 in the step (S18) of transmitting that communication is not possible, the message shown in the item of “sensor D” in FIG. 6 (C) can be posted. Instead of displaying on the display unit 22 or displaying on the display unit 22, a voice or buzzer sound is transmitted from the speaker 26 and / or vibration is generated in the vibration generating unit 27 to indicate that communication is not possible. , May be communicated to the operator. By communicating to the operator that communication is not possible using the speaker 26 and / or the vibration generating unit 27, it is possible to avoid an inspection. In this way, in addition to the display unit 22, the speaker 26 and the vibration generating unit 27 each constitute a transmission unit.

When communicating that communication is not possible (S18) or acquiring data on the state quantity detected by the sensor 10 (S17), the portable device 20 is not among the sensors to be inspected listed in the inspection list. It is determined whether or not there is an inspection sensor 10 (S19). If there is an uninspected sensor 10, the process returns to the step (S13) of determining whether or not the sensor 10 to be inspected has been reached, and the above flow is repeated thereafter. On the other hand, if there is no uninspected sensor 10, the inspection is completed. When the inspection is completed, the inspection result may be displayed on the display unit 22, for example, as shown in FIG. 6D.

As described above, according to the detection system 1 according to the present embodiment, the portable device 20 approaches a position where the message including the unique address transmitted by the unauthenticated sensor 10 can be received with an intensity equal to or higher than the threshold value. Occasionally, the sensor 10 can be authenticated and registered, so that authentication registration can be easily performed while avoiding unauthorized registration from the outside. In addition, when the portable device 20 reaches a position where the intensity of the radio wave transmitted from the sensor 10 listed in the inspection list created in advance is equal to or higher than the threshold value, the portable device sends a message including the state amount detected by the sensor 10. Since 20 receives automatically, data can be easily collected only by patrol the inspection route.

Next, the detection system 101 according to a modified example of the embodiment of the present invention will be described with reference to FIG. 7 (A). FIG. 7A is a schematic configuration diagram of one sensor 110 and a portable device 120 constituting the detection system 101 according to the modified example. In the detection system 101, the sensor 110 has an authenticated unique address storage unit 15 instead of the installation information storage unit 13 (see FIG. 2), and is not provided in the sensor 10 (see FIG. 2). It has a radio wave intensity measuring unit 16. The authenticated unique address storage unit 15 is a portion capable of storing the unique address of the authenticated portable device 120 in addition to the function of the installation information storage unit 13 (see FIG. 2). Since the radio wave intensity measuring unit 16 is provided in the sensor 110, the portable device 120 is not provided with the radio wave intensity measuring unit 24 (see FIG. 2). Further, the portable device 120 is not provided with the authenticated sensor storage unit 25 (see FIG. 2). The configurations of the sensor 110 and the portable device 120 other than the above are the same as those of the sensor 10 (see FIG. 2) and the portable device 20 (see FIG. 2), respectively. In the detection system 101 configured in this way, the sensor 110 receives a notification from the portable device 120 that the authentication operation is in progress, and transitions to the authentication operation mode. Then, the radio wave intensity measuring unit 16 of the sensor 110 measures the radio wave intensity of wireless communication with the mobile device 120, and if it is equal to or more than the threshold value, stores the unique address of the mobile device 120. The sensor 110 notifies that the communication from the portable device other than the stored portable device 120 is not approved if it is not approved.

Next, with reference to FIG. 7B, the detection system 201 according to another modification of the embodiment of the present invention will be described. FIG. 7B is a schematic configuration diagram of one sensor 210 and the portable device 20 constituting the detection system 201 according to the modified example. In the detection system 201, the sensor 210 has a radio wave intensity variable unit 18 in addition to the configuration of the sensor 10 (see FIG. 2). The radio wave intensity variable unit 18 can change the reach of radio waves by changing the radio wave intensity and / or frequency of the telegram including the unique address transmitted from the sensor 210. The configuration of the sensor 210 other than the above is the same as that of the sensor 10 (see FIG. 2), and the portable device 20 included in the detection system 201 is the same as that provided in the detection system 1 (see FIG. 2). In the detection system 201 configured in this way, before the authentication registration of the sensor 210, the strength of the radio wave transmitted from the sensor 210 is minimized (communication is possible only in a short distance), the authentication registration is performed, and the storage of the installation information is completed. The strength of the radio waves transmitted later is increased. By changing the radio wave strength in this way, until the certification registration is performed, the portable device 210 that can be authenticated by transmitting a relatively weak radio wave is limited to those existing in a short distance, and after the certification registration is performed. Makes it possible for the portable device 20 to receive the amount of state detected by the sensor 210 at a relatively long distance by transmitting a strong radio wave.

In the above explanation, it is assumed that the installation information storage unit 13 stores the product-specific address and the installation information in addition to the unique address. However, it is sufficient that at least the unique address is stored, and information other than the unique address is required. It can be configured to be arbitrarily stored according to the above.

In the above description, it is assumed that the portable device 20 also serves as a setting device and a data collecting device, but if one of the functions is sufficient, the other function may not be provided.

In the above description, it is assumed that the portable device 20 has the speaker 26 and the vibration generating unit 27, but if the notification by voice output or vibration is unnecessary, the speaker 26 and / or the vibration generating unit 27 may not be provided. good.

1, 101, 201 Sensor certification registration system 10, 110, 210 Sensor 16 Radio field intensity measurement unit 19 Sensing target device 20, 120 Portable device 22 Display unit 24 Radio field intensity measurement unit

Claims (4)

A plurality of sensors installed in one or more sensing target devices arranged in the management target area and detecting the state quantity of the sensing target device;
Equipped with a setting device that individually stores the installation information of a plurality of the sensors;
Each of the plurality of sensors and the setting device are configured to enable wireless communication with each other.
A radio wave intensity measuring unit for measuring the strength of radio waves in the wireless communication is provided on at least one of the sensor and the setting device.
When the setting device detects the presence of the sensor for which the installation information is not stored, the setting device can perform an authentication operation for storing the installation information when the radio wave intensity measured by the radio wave intensity measuring unit is equal to or higher than a threshold value. Constructed,
Sensor authentication registration system. The setting device has a display unit that displays information about the sensor.
The sensor authentication registration system according to claim 1. The setting device is configured to display the item of the installation information about the sensor that stores the installation information on the display unit at the time of the authentication operation.
The sensor authentication registration system according to claim 2. The sensor is configured to receive and store the installation information stored in the setting device from the setting device by the wireless communication, and transmits the installation information from the sensor after the storage of the installation information is completed. Constructed to increase the strength of radio waves,
The sensor authentication registration system according to any one of claims 1 to 3.

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