Weather sensor and weather sensor transmission control method

Abstract

A weather sensor according to the present invention is equipped with a sensor for measuring weather elements, and includes: a communication unit; a transmission data generation unit that generates, on the basis of measured values of the sensor, transmission data for transmission to an external device; a notification level determination unit that determines a notification level on the basis of the measured values of the sensor; and a transmission control unit that transmits the transmission data to the external device at a transmission interval corresponding to the notification level. The transmission control unit transmits the transmission data to the external device at a first transmission interval if the notification level is evaluated such that a specific event does not occur, and changes the transmission interval to a second transmission interval shorter than the first transmission interval according to the notification level if the notification level is evaluated such that the specific event occurs.

Description

Weather Sensor and Transmission Control Method for Weather Sensor

[0001] The present invention relates to a weather sensor and a transmission control method for a weather sensor.

[0002] Conventionally, weather sensors that measure wind direction, wind speed, air temperature, precipitation and the like are known. In such weather sensors, the sensing interval and the reporting interval to the outside such as the cloud (hereinafter referred to as the notification interval) are fixed.

[0003] For this reason, when a dangerous event occurs, measures have been taken to speed up reporting, such as shortening the fixed notification interval, in order to notify the measured values of the sensor as soon as possible.

[0004] Therefore, when a dangerous event occurs, the notification frequency increases, and in the case of long-term events such as typhoons, a large amount of communication data is generated, which causes the problem that communication costs and communication traffic increase.

[0005] Japanese Unexamined Patent Application Publication No. 2006-165981

[0006] The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of suppressing communication frequency even when a dangerous event occurs.

[0007] The present invention for solving the above problems is a weather sensor comprising a sensor that measures a meteorological element, comprising: a communication unit communicably connected to an external device; a transmission data generation unit that generates transmission data to be transmitted to the external device based on the measurement value of the sensor; a notification level determination unit that determines a notification level based on the measurement value of the sensor; and a transmission control unit that transmits the transmission data to the external device at a transmission interval corresponding to the notification level, wherein the transmission control unit transmits the transmission data to the external device at a first transmission interval when the notification level is a level evaluated that a specific event has not occurred, and changes the transmission interval to a second transmission interval that is shorter than the first transmission interval and corresponds to the notification level when the notification level is a level evaluated that the specific event has occurred.

[0008] According to this, even when a dangerous event occurs, the transmission data is sent to the external device at a second transmission interval that is shorter than the first transmission interval, which is the transmission interval for transmission data during normal times. This allows for earlier notification of the occurrence of a dangerous event. Furthermore, since the second transmission interval is changed according to the notification level, the communication frequency is higher than that of the first transmission interval, but by keeping the communication frequency to the minimum necessary, the communication frequency can be suppressed compared to a fixed communication frequency.

[0009] Furthermore, in the present invention, the transmission control unit may change the transmission interval back to the first transmission interval when the release condition set for each notification level is met while the transmission interval has been changed to the second transmission interval.

[0010] According to this, hysteresis can be implemented to prevent the transmission interval from being overwritten to a transmission interval below the notification level until the change in the transmission interval is canceled. Therefore, the transmission interval will not be overwritten to one corresponding to a lower notification level, and the communication frequency can be maintained stably even if the measured values ​​of each sensor fluctuate wildly.

[0011] Furthermore, in the present invention, the transmission control unit may change the transmission interval to a third transmission interval that is shorter than the second transmission interval if, while the transmission interval has been changed to the second transmission interval, the notification level determined by the notification level determination unit exceeds the notification level at which the second transmission interval was set.

[0012] According to this, the communication frequency can be maintained stably even if the measured values ​​from each sensor fluctuate wildly.

[0013] Furthermore, in the present invention, the notification level may be determined based on the degree of influence and urgency associated with the measured value of the sensor.

[0014] Furthermore, in the present invention, if the notification level is a level at which the specific event is evaluated to have occurred, the transmission data generation unit may include information in the transmission data indicating that the specific event has occurred.

[0015] Furthermore, the present invention relates to a transmission control method for controlling the transmission interval for transmitting transmission data to an external device in a weather sensor equipped with a sensor for measuring weather elements, comprising: measuring the weather elements with the sensor; generating transmission data based on the measurement value of the sensor; determining a notification level based on the measurement value of the sensor; transmitting the transmission data to the external device at a first transmission interval if the notification level is a level at which a specific event is evaluated as not having occurred; and changing the transmission interval to a second transmission interval shorter than the first transmission interval, corresponding to the notification level, if the notification level is a level at which the specific event is evaluated as having occurred.

[0016] According to this, even when a dangerous event occurs, the transmission data is sent to the external device at a second transmission interval that is shorter than the first transmission interval, which is the transmission interval for transmission data during normal times. This allows for earlier notification of the occurrence of a dangerous event. Furthermore, since the second transmission interval is changed according to the notification level, the communication frequency is higher than that of the first transmission interval, but by keeping the communication frequency to the minimum necessary, the communication frequency can be suppressed compared to a fixed communication frequency.

[0017] Furthermore, the present invention may also include the step of changing the transmission interval back to the first transmission interval when the release condition set for each notification level is met while the transmission interval has been changed to the second transmission interval.

[0018] According to this, hysteresis can be implemented to prevent the transmission interval from being overwritten to a transmission interval below the notification level until the change in the transmission interval is canceled. Therefore, the transmission interval will not be overwritten to one corresponding to a lower notification level, and the communication frequency can be maintained stably even if the measured values ​​of each sensor fluctuate wildly.

[0019] Furthermore, in the present invention, if the notification level exceeds the notification level at which the second transmission interval was set while the transmission interval has been changed to the second transmission interval, the present invention may also include the step of changing the transmission interval to a third transmission interval that is shorter than the second transmission interval.

[0020] According to this, the communication frequency can be maintained stably even if the measured values ​​from each sensor fluctuate wildly.

[0021] Furthermore, in the present invention, the notification level may be determined based on the degree of influence and urgency associated with the measured value of the sensor.

[0022] Furthermore, in the present invention, if the notification level is a level at which the specific event is evaluated to have occurred, the transmission data may include information indicating that the specific event has occurred.

[0023] According to the present invention, the communication frequency can be suppressed even when a dangerous event occurs.

[0024] Figure 1 is an external perspective view of a weather sensor according to an embodiment of the present invention. Figure 2 is a block diagram showing the functional configuration of a weather sensor according to an embodiment of the present invention. Figure 3 is a diagram showing the schematic configuration of a weather sensing system including a weather sensor according to an embodiment of the present invention. Figure 4 is a flowchart showing the procedure for controlling the transmission interval in a weather sensor according to an embodiment of the present invention. Figures 5(A) to 5(C) show example tables showing the relationship between the measured value or index value of the sensor and the degree of impact and urgency in an embodiment of the present invention. Figure 6(A) is a diagram showing an example table defining the relationship between the degree of impact and urgency and the notification level, and Figure 6(B) is an example table showing the release conditions for each notification level by the measured value or index value.

[0025] [Application Examples] The following describes application examples of the present invention with reference to the drawings. Figure 1 is an external view showing the schematic configuration of a weather sensor 1 according to an application example of the present invention. Figure 2 is a block diagram showing the functional configuration of the weather sensor 1. Figure 3 is a schematic configuration diagram of a weather sensing system 100 including the weather sensor 1.

[0026] The weather sensor 1 integrates a rainfall sensor 11, an illuminance sensor 12, a wind direction / wind speed sensor 13, a pressure sensor 14, a temperature sensor 15, and a humidity sensor 16, and has a communication unit 17 and a control unit 18 for communicating with a server 2 on the cloud via a network NW.

[0027] Figure 4 shows a flowchart illustrating the procedure for controlling notifications from weather sensor 1. After the startup process (step S1), weather sensor 1 determines whether or not the notification interval time has elapsed (step S2).

[0028] If, in step S2, it is determined that the notification interval time has not elapsed, the control unit 18 performs sensing processing using each sensor (step S3) and proceeds to step S6.

[0029] In step S2, if it is determined that the notification interval time has elapsed, the control unit 18 performs sensing data aggregation processing (step S4) and transmits the aggregated data to a server 2 or the like on the cloud (step S5).

[0030] In step S6, the notification level is determined, and the process proceeds to step S7. Here, the notification level is an index that evaluates whether a specific event is occurring based on the degree of impact and urgency associated with the measured values ​​of each sensor or the index values ​​calculated therefrom. Figures 5(A) to (C) are tables T1 to T3 that show the values ​​of impact and urgency associated with each range of measured values ​​from each sensor or the index values ​​calculated therefrom for rain, wind, and WBGT (described later). Figure 6(A) is a notification level table T4 that defines the correspondence between this degree of impact and urgency and the notification level. In the notification level table T4, the value written in the cell where the degree of impact assigned in the column direction and the degree of urgency assigned in the row direction intersect indicates the corresponding notification level. The notification interval is changed according to this notification level, as will be described later.

[0031] In step S6, after determining whether the above-mentioned specific conditions are met, the control unit 18 determines whether the notification interval is being changed (step S7). In step S7, if it is determined that the notification interval is being changed, the control unit 18 determines whether the specific state that causes the notification interval to be changed is in a state that should be released (step S8). Figure 6(B) shows a release level table T5 which defines the correspondence between the notification level and the values ​​below which the change in the notification interval should be released, based on the measured values ​​from each sensor or the index values ​​calculated therefrom. The control unit 18 refers to the release level table T5 for each notification level to determine whether the state that should be released is in.

[0032] In step S8, if it is determined that a specific condition that causes the notification interval to be changed has been resolved, the notification interval is changed (step S9), and the process returns to step S2.

[0033] If, in step S8, it is determined that a specific condition that causes the notification interval to be changed has not been cleared, the control unit 18 determines whether the notification level has increased at that time (step S10). If it is determined that the notification level has increased, the control unit 18 proceeds to step S9 to change the notification interval. If, in step S10, the notification level has not increased, it returns to step S2.

[0034] If it is determined in step S7 that the notification interval is not being changed, the control unit 18 determines whether the notification level is greater than 0 (step S11). If it is determined in step S11 that the notification level is greater than 0, the control unit 18 changes the notification interval (step S12) and returns to step S2. If it is determined in step S11 that the notification level is not greater than 0, the control unit 18 returns to step S2.

[0035] Thus, with weather sensor 1, when a dangerous event occurs, notifications can be sent at intervals corresponding to the notification level, thus reducing the frequency of communication.

[0036] [Example 1] Below, the weather sensor 1 according to Example 1 of the present invention will be described in more detail with reference to the drawings. However, the configuration of the apparatus and system described in this example should be appropriately changed depending on various conditions. In other words, it is not intended to limit the scope of this invention to the following example. The weather sensor 1 corresponds to the weather sensor of the present invention.

[0037] <Outline Configuration of Weather Sensor 1> Figure 1 is an external view showing the schematic configuration of weather sensor 1. Figure 2 is a block diagram showing the functional configuration of weather sensor 1. Figure 3 is a schematic configuration diagram of a weather sensing system 100 including weather sensor 1. Weather sensor 1 is equipped with a rain amount sensor 11, an illuminance sensor 12, a wind direction / wind speed sensor 13, a pressure sensor 14, a temperature sensor 15, and a humidity sensor 16, and can measure seven meteorological elements: rain amount, illuminance, wind direction and wind speed, pressure, temperature, and humidity. The main unit 10 also includes a communication unit 17 that communicates with external devices via a network NW, and a control unit 18 that controls each part of weather sensor 1, including the rain amount sensor 11 and other sensors and the communication unit 17. Weather sensor 1 corresponds to the weather sensor of the present invention. The rain amount sensor 11, illuminance sensor 12, wind direction / wind speed sensor 13, pressure sensor 14, temperature sensor 15, and humidity sensor 16 each correspond to sensors that measure the meteorological elements of the present invention. The communication unit 17 corresponds to the communication unit of the present invention.

[0038] The control unit 18 includes the functional units of a transmission data generation unit 181, a notification level determination unit 182, and a transmission control unit 183 (specific functions will be described later). The transmission data generation unit 181, the notification level determination unit 182, and the transmission control unit 183 correspond to the transmission data generation unit, notification level determination unit, and transmission control unit of the present invention, respectively. The control unit 18 includes a CPU (Central Processing Unit), ROM (Read Only Memory), and RAM (Random Access Memory). The CPU, for example, expands a program stored in ROM into RAM and executes the expanded program. With this configuration, the control unit 18 realizes the above-mentioned functional units and executes various processes according to the program, such as the transmission control method described later. The control unit 18 does not necessarily have to execute processing using a processor such as a CPU; it may also execute processing using an ASIC (Application Specific Integrated Circuit) or the like.

[0039] The weather sensor 1 is connected to a server 2 on the cloud via a network NW. Server 2 may consist of a single computer or multiple computers cooperating with each other, and an appropriate hardware configuration can be applied. Here, server 2 is an example of an external device, and the external device may include a computer device such as a PC 3 or smartphone 4 managed or operated by a specific person, or it may include a notification device that uses images, light, sound, etc., such as a display, indicator light, or siren. Although only one weather sensor 1 is shown here, the weather sensing system 100 can be made up of multiple weather sensors 1 installed in various locations and the server 2, etc.

[0040] The power source is either a commercial AC power supply or a DC power supply such as a solar panel or rechargeable battery.

[0041] Such weather sensors 1 can be used in a variety of fields, including crop growth management, safe drone operation, measures against strong winds and heatstroke at construction sites and facilities, preparation and decision-making regarding the feasibility of holding sports and events, and safety measures in stores.

[0042] Fig. 4 is a flowchart showing the procedure of the transmission control method for the weather sensor 1.

[0043] When the weather sensor 1 is activated, the control unit 18 performs activation processing of each unit including each sensor such as the rain gauge 11 (step S1).

[0044] Next, the transmission control unit 183 determines whether or not the notification interval time has elapsed (step S2). The notification interval time can be set to, for example, 1 minute, but is not limited thereto and can be set to an appropriate time. The notification destination is an external device such as the server 2 shown in Fig. 3. The notification interval time set when no specific event has occurred corresponds to the first transmission interval of the present invention.

[0045] If it is determined in step S2 that the notification interval time has not elapsed, the control unit 18 performs sensing processing by each sensor such as the rain gauge 11 (step S3), and proceeds to step S6. Sampling is performed at a cycle set for each sensor, for example, 250 msec intervals for the temperature sensor 15.

[0046] If it is determined in step S2 that the notification interval time has elapsed, the transmission data generation unit 181 performs sensing data aggregation processing (step S4). The sensing data aggregation processing is processing that collects data of each sensing cycle for each sensor such as the rain gauge 11, processes the data into data per sensing cycle, and generates transmission data for transmission to the server 2 or the like. Processing of data per sensing cycle includes, for example, averaging of 1 minute of data, but is not limited thereto.

[0047] The transmission control unit 183 transmits the aggregated data in step S4 to the server 2 or the like on the cloud (step S5), and returns to the processing of step S2.

[0048] In step S6, a notification level determination unit 182 determines a notification level described later, and the process proceeds to step S7. Here, the notification level is an index for evaluating whether or not a specific event has occurred based on the degree of influence and urgency associated with the measurement value of each sensor or an index value calculated therefrom. Here, events based on rain, wind, and WBGT (wet-bulb globe temperature, heat index) will be described as specific events. WBGT is an index proposed for the purpose of preventing heat stroke, and is calculated by the following formula (1).

[0049] FIGS. 5(A) to 5(C) are tables T1 to T3 showing the values of influence degree and urgency degree associated with each range of the measurement value obtained by each sensor or the index value calculated based thereon, for rain, wind, and WBGT, respectively. These tables T1 to T3 are stored, for example, in a predetermined area of a ROM of the control unit 18.

[0050] The table T1 shown in FIG. 5(A) is a table for rain. When the rainfall measured by the rainfall sensor 11 is 19 mm / h or less, both the influence degree and the urgency degree are set to 0. When the rainfall measured by the rainfall sensor 11 is 20 to 29 mm / h, both the influence degree and the urgency degree are set to 1. When the rainfall measured by the rainfall sensor 11 is 30 to 99 mm / h, both the influence degree and the urgency degree are set to 2. When the rainfall measured by the rainfall sensor 11 is 100 to 199 mm / h, the influence degree is set to 3 and the urgency degree is set to 2. When the rainfall measured by the rainfall sensor 11 is 200 mm / h or more, the influence degree is set to 4 and the urgency degree is set to 2.

[0051] Table T2 shown in Figure 5(B) is a table for wind. This table T2 refers to the F (Fujita) scale, which was devised to assess wind speed based on the extent of damage. When the wind speed measured by the wind direction / wind speed sensor 13 is 16 m / s, both the impact level and the urgency level are set to 0. When the wind speed measured by the wind direction / wind speed sensor 13 is between 17 and 32 m / s, the impact level is set to 1 and the urgency level is set to 2. When the wind speed measured by the wind direction / wind speed sensor 13 is between 33 and 49 m / s, the impact level is set to 2 and the urgency level is set to 4. When the wind speed measured by the wind direction / wind speed sensor 13 is between 50 and 69 m / s, both the impact level and the urgency level are set to 4. When the wind speed measured by the wind direction / wind speed sensor 13 is 70 m / s or higher, both the impact level and the urgency level are set to 4.

[0052] Table T3 shown in Figure 5(C) is a table for WBGT. WBGT is an example of an index calculated from measurements taken by the temperature sensor 15 and the humidity sensor 16. When the WBGT calculated from the measurements taken by the temperature sensor 15 and the humidity sensor 16 is 23 or less, both the impact level and the urgency level are set to 0. When the WBGT calculated from the measurements taken by the temperature sensor 15 and the humidity sensor 16 is between 24 and 27, both the impact level and the urgency level are set to 1. When the WBGT calculated from the measurements taken by the temperature sensor 15 and the humidity sensor 16 is between 28 and 30, the impact level is set to 2 and the urgency level is set to 1. When the WBGT calculated from the measurements taken by the temperature sensor 15 and the humidity sensor 16 is between 31 and 34, the impact level is set to 3 and the urgency level is set to 1. When the WBGT calculated from the measurements taken by the temperature sensor 15 and the humidity sensor 16 is 35 or more, the impact level is set to 4 and the urgency level is set to 1.

[0053] The tables shown in Figures 5(A) to (C) are illustrative examples; for other specific hazardous events, the degree of impact and urgency are similarly set for the measured values ​​of each sensor or the index values ​​calculated based thereon.

[0054] Figure 6(A) shows the notification level table T4, which defines the correspondence between the impact level, urgency level, and notification level described above. In the notification level table T4, the impact level is assigned from 0 to 4 in the column direction, and the urgency level is assigned from 0 to 4 in the row direction. The value written in the cell where the impact level and urgency level intersect indicates the corresponding notification level. For example, if the rainfall is between 30 and 99 mm / h, both the impact level and urgency level are set to 2, so the notification level is 2. Also, if the wind speed is between 33 and 49 m / s, the impact level is set to 2 and the urgency level is set to 4, so the notification level is 4. Furthermore, if the WBGT is between 28 and 30, the impact level is set to 2 and the urgency level is set to 1, so the notification level is 2. The notification level table T4 is stored, for example, in a predetermined area of ​​ROM. The contents of the notification level table T4 may be rewritten by instructions from a server 2 connected to the weather sensor 1 via a network NW, or from a PC 3 or smartphone 4.

[0055] The impact level, urgency level, and notification level, which are the processing results in step S6, are stored in a predetermined area of ​​the ROM.

[0056] In step S6, after determining the notification level as described above, the transmission control unit 183 determines whether or not the notification interval is being changed (step S7). Normally, as explained in step S5, data is sent to the server 2 on the cloud at one-minute intervals, but the notification interval may be changed in step S10, which will be described later. In step S7, it is determined whether or not this notification interval has been changed.

[0057] In step S7, if it is determined that the notification interval is being changed, the transmission control unit 183 determines whether a specific condition that causes the notification interval to be changed has been released (step S8). Figure 6(B) shows a release level table T5 that defines the correspondence between the notification level and the values ​​below which the change in the notification interval should be released, based on the measured values ​​from each sensor or the index values ​​calculated therefrom. For example, if the notification interval is being changed to the notification interval corresponding to notification level 4, which corresponds to rainfall of 200 mm / h or more, and the rainfall is 30 mm / h or less, the change in the notification interval is released, that is, the notification interval is returned to the normal notification interval. Also, if the notification interval is being changed to the notification interval corresponding to notification level 3, which corresponds to rainfall of 100 to 199 mm / h, and the rainfall is 20 mm / h or less, the change in the notification interval is released. Also, if the notification interval is being changed to the notification interval corresponding to notification level 2, which corresponds to rainfall of 30 to 99 mm / h, and the rainfall is 20 mm / h or less, the change in the notification interval is released. Furthermore, if the notification interval is being changed to the notification level corresponding to notification level 1, which corresponds to rainfall of 20-29 mm / h, and the rainfall falls below 10 mm / h, the change in the notification interval is canceled. Here, rainfall has been used as an example, but similarly, the relationship between the notification level and the measured value or index value to be canceled is defined for wind and WBGT. The cancellation level table T5 is stored, for example, in a predetermined area of ​​ROM. The contents of the cancellation level table T5 may be rewritten by instructions from a server 2 connected to the weather sensor 1 via a network NW, or from a PC 3 or smartphone 4.

[0058] In step S8, if it is determined that a specific condition causing a change in the notification interval has been released, the transmission control unit 183 changes the notification interval (step S9). When proceeding from step S8 to step S9, since the specific condition causing a change in the notification interval has been released, the changed notification interval is returned to the normal interval, or, if the specific condition causing a change in the notification interval is still present, the notification interval is changed to one corresponding to the unreleased specific condition. After changing the notification interval in step S9, the process returns to step S2. The notification interval is stored, for example, in a predetermined area of ​​ROM and can be rewritten as appropriate. The correspondence between the notification level and the notification interval can be set as appropriate.

[0059] In this way, weather sensor 1 detects and categorizes specific hazardous events by analyzing sensing data from each sensor, and changes the notification interval according to the notification level of the hazardous event to enable notifications. As a result, even when a specified hazardous event occurs, notifications can be made at the appropriate timing for the event. Furthermore, conditions for deactivation can be set according to the notification level of the specified hazardous event, and notifications can also be made when the event is deactivated. Hysteresis is provided to prevent the notification interval from being overwritten to one below the notification level until the event is deactivated. As a result, the notification interval is not overwritten by a notification interval corresponding to a lower notification level, and the notification frequency can be maintained stably even if the measured values ​​of each sensor or the index values ​​based on them fluctuate wildly.

[0060] In step S8, if it is determined that a specific state that causes a change in the notification interval has not been released, the transmission control unit 183 determines whether the notification level has increased at the time of determination (step S10). As described above, the notification level is calculated using the table shown in Figure 6(A) for the measured values ​​of each sensor or the index values ​​calculated based thereon. An increase in the notification level means, for example, when the notification interval has been changed to one corresponding to notification level 3, and in step S6 it is determined that the state corresponds to notification level 4.

[0061] If it is determined in step S10 that the notification level has risen, the transmission control unit 183 proceeds to step S9 to change the notification interval. Here, the notification interval changed from step S10 to step S9 corresponds to the third transmission interval of the present invention. If in step S10 the notification level has not risen, that is, there is no change in the notification level, or the notification level has decreased, the process returns to step S2.

[0062] If it is determined in step S7 that the notification interval is not being changed, the transmission control unit 183 determines whether the notification level is greater than 0 (step S11). If it is determined in step S11 that the notification level is greater than 0, the transmission control unit 183 changes the notification interval (step S12) and returns to step S2. If it is determined in step S11 that the notification level is not greater than 0, i.e., 0, the control unit 18 returns to step S2. Here, the notification interval set in step S12 corresponds to the second transmission interval of the present invention.

[0063] When changing the notification interval, the transmission data generation unit 181 may notify an external device such as the server 2 by including in the transmission data that a specific event corresponding to the measurement value of each sensor has occurred or has ceased.

[0064] Thus, with weather sensor 1, when a dangerous event occurs, notifications can be sent at intervals corresponding to the notification level, thus reducing the frequency of communication.

[0065] For the purpose of comparing the constituent elements of this disclosure with the configurations of the embodiments, the constituent elements of this disclosure are listed below with reference numerals in the drawings. <Note 1> A weather sensor (1) equipped with sensors (11 to 16) for measuring meteorological elements, comprising: a communication unit (17) that is communicably connected to external devices (2 to 4); a transmission data generation unit (181) that generates transmission data for transmission to the external devices (2 to 4) based on the measured values ​​of the sensors (11 to 16); a notification level determination unit (182) that determines a notification level based on the measured values ​​of the sensors (11 to 16); and a transmission control unit (183) that transmits the transmission data to the external devices at a transmission interval corresponding to the notification level, wherein the transmission control unit (183) transmits the transmission data to the external devices (2 to 4) at a first transmission interval if the notification level is a level that indicates that a specific event has not occurred, and changes the transmission interval to a second transmission interval shorter than the first transmission interval, corresponding to the notification level. <Note 2> The weather sensor (1) according to Note 1, characterized in that the transmission control unit (183) changes the transmission interval to the first transmission interval when the release condition set for each notification level is met while the transmission interval has been changed to the second transmission interval. <Note 3> The weather sensor (1) according to Note 1, characterized in that, while the transmission interval has been changed to the second transmission interval, the notification level determined by the notification level determination unit exceeds the notification level for which the second transmission interval was set. <Note 4> The weather sensor (1) according to any one of Notes 1 to 3, characterized in that the notification level is determined based on the degree of influence and urgency associated with the measurement value of the sensor.<Note 5> The weather sensor (1) according to any one of Notes 1 to 4, characterized in that, if the notification level is a level at which the specific event is evaluated to have occurred, the transmission data generation unit (181) includes information in the transmission data indicating that the specific event has occurred. <Note 6> A transmission control method for a weather sensor (1) equipped with sensors (11 to 16) for measuring meteorological elements, comprising: a step (S3) of measuring the meteorological elements with the sensors (11 to 16); a step (S4) of generating the transmission data based on the measured values ​​of the sensors (11 to 16); a step (S6) of determining a notification level based on the measured values ​​of the sensors (11 to 16); if the notification level is a level at which a specific event is evaluated not to have occurred, transmitting the transmission data to the external device at a first transmission interval (S5); and if the notification level is a level at which the specific event is evaluated to have occurred, changing the transmission interval to a second transmission interval shorter than the first transmission interval according to the notification level (S7, S11, S12). <Note 7> A transmission control method for a weather sensor (1) according to Note 6, characterized in that it includes steps S8, S9) of changing the transmission interval to the first transmission interval when the release condition set for each notification level is met while the transmission interval has been changed to the second transmission interval. <Note 8> A transmission control method for a weather sensor (1) according to Note 6, characterized in that it includes steps (S10, S9) of changing the transmission interval to a third transmission interval shorter than the second transmission interval when the notification level exceeds the notification level at which the second transmission interval was set while the transmission interval has been changed to the second transmission interval. <Note 9> A transmission control method for a weather sensor (1) according to any one of Notes 6 to 8, characterized in that the notification level is determined based on the degree of influence and urgency associated with the measurement value of the sensor.<Note 10> A transmission control method for a weather sensor (1) according to any one of Notes 6 to 9, characterized in that, if the notification level is a level at which the specific event is evaluated to have occurred, the transmission data includes information indicating that the specific event has occurred.

[0066] 1: Weather sensor 11: Rainfall sensor 12: Illuminance sensor 13: Wind direction / wind speed sensor 14: Barometric pressure sensor 15: Temperature sensor 16: Humidity sensor 17: Communication unit 18: Control unit 181: Data generation unit for transmission 182: Notification level determination unit 183: Transmission control unit

Claims

1. A weather sensor equipped with a sensor for measuring meteorological elements, comprising: a communication unit connected to an external device in a communicative manner; a transmission data generation unit that generates transmission data for transmission to the external device based on the measurement value of the sensor; a notification level determination unit that determines a notification level based on the measurement value of the sensor; and a transmission control unit that transmits the transmission data to the external device at a transmission interval corresponding to the notification level, wherein the transmission control unit transmits the transmission data to the external device at a first transmission interval if the notification level is a level at which a specific event is evaluated as not having occurred, and changes the transmission interval to a second transmission interval shorter than the first transmission interval, corresponding to the notification level, if the notification level is a level at which the specific event has occurred.

2. The weather sensor according to claim 1, characterized in that the transmission control unit changes the transmission interval back to the first transmission interval when the release condition set for each notification level is met while the transmission interval has been changed to the second transmission interval.

3. The weather sensor according to claim 1, characterized in that, when the transmission interval has been changed to the second transmission interval, the transmission control unit changes the transmission interval to a third transmission interval that is shorter than the second transmission interval if the notification level determined by the notification level determination unit exceeds the notification level at which the second transmission interval was set.

4. The weather sensor according to any one of claims 1 to 3, characterized in that the notification level is determined based on the degree of impact and urgency associated with the measurement value of the sensor.

5. The weather sensor according to any one of claims 1 to 3, characterized in that, if the notification level is a level at which the specific event is evaluated to have occurred, the transmission data generation unit includes information in the transmission data indicating that the specific event has occurred.

6. A transmission control method for a weather sensor equipped with a sensor for measuring meteorological elements, comprising: a step of measuring the meteorological elements with the sensor; a step of generating the transmission data based on the measurement value of the sensor; a step of determining a notification level based on the measurement value of the sensor; if the notification level is a level at which a specific event is evaluated as not having occurred, transmitting the transmission data to the external device at a first transmission interval; and if the notification level is a level at which the specific event is evaluated as having occurred, changing the transmission interval to a second transmission interval shorter than the first transmission interval, corresponding to the notification level.

7. The transmission control method for a weather sensor according to claim 6, characterized in that, when the transmission interval has been changed to the second transmission interval, the method includes the step of changing the transmission interval back to the first transmission interval when the release condition set for each notification level is met.

8. The transmission control method for a weather sensor according to claim 6, characterized in that, when the transmission interval has been changed to the second transmission interval, the notification level exceeds the notification level at which the second transmission interval was set, the transmission interval is changed to a third transmission interval that is shorter than the second transmission interval.

9. The transmission control method for a weather sensor according to any one of claims 6 to 8, characterized in that the notification level is determined based on the degree of impact and urgency associated with the measured value of the sensor.

10. A transmission control method for a weather sensor according to any one of claims 6 to 8, characterized in that, if the notification level is a level at which the specific event is evaluated to have occurred, the transmission data includes information indicating that the specific event has occurred.

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