WO2012176547A1 - 端末装置、通信システム及び端末装置の起動方法 - Google Patents
端末装置、通信システム及び端末装置の起動方法 Download PDFInfo
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- WO2012176547A1 WO2012176547A1 PCT/JP2012/060991 JP2012060991W WO2012176547A1 WO 2012176547 A1 WO2012176547 A1 WO 2012176547A1 JP 2012060991 W JP2012060991 W JP 2012060991W WO 2012176547 A1 WO2012176547 A1 WO 2012176547A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
- H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/88—Providing power supply at the sub-station
- H04Q2209/883—Providing power supply at the sub-station where the sensing device enters an active or inactive mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to a terminal device that transmits a result of measurement (measurement) of a physical quantity by a measurement sensor, a communication system having such a terminal device, and a starting method of such a terminal device.
- a sensor terminal device transmits a result of measuring a physical quantity by a measurement sensor to a base station device.
- the power of the power supply unit can be supplied when the sensor that operates without power is in the ON state, and the power of the power supply unit cannot be supplied when the sensor is in the OFF state. Is supplied with power from the power supply unit and wirelessly transmits predetermined information to the outside.
- the present invention has been made in view of such circumstances, and an object thereof is to provide a terminal device, a communication system, and a terminal device activation method capable of realizing high-performance sensing and low power consumption. It is in.
- the terminal device includes a measurement sensor that measures a physical quantity to be measured, a control unit that switches the measurement sensor from a non-activated state to an activated state when activated, and low power consumption compared to the measurement sensor. And an activation unit that activates the control unit when a physical quantity having a correlation with the physical quantity to be measured is satisfied as a predetermined activation condition.
- the activation unit includes an activation sensor that is driven by generating electricity based on a change in environment, and the predetermined activation is performed based on a detection result of the activation sensor.
- the control unit is activated when the condition is satisfied.
- the terminal device is characterized in that it includes a charging unit that is charged using electric power generated by the activation sensor of the activation unit.
- the terminal device is characterized in that, when the predetermined activation condition is not satisfied, the electric power generated by the activation sensor is stored in the charging unit.
- the terminal device performs an operation in a maintenance mode for inspecting whether there is a failure in the measurement sensor, using the power stored in the charging unit when the charging unit stores power above a predetermined threshold. It is characterized by executing.
- the terminal device is characterized in that when the charging unit is charged to a predetermined threshold value or more, the power stored in the charging unit is supplied to the measurement sensor.
- the terminal device includes a plurality of the measurement sensors.
- the control unit when the control unit is activated, switches the measurement sensor from the non-activated state by switching from the non-supplied state to the supplied state. It switches to a starting state, It is characterized by the above-mentioned.
- the communication system includes a terminal device and a base station device, and the terminal device deactivates the measurement sensor when activated and a measurement sensor that measures a physical quantity to be measured.
- a control unit that switches from a state to an activated state, an activation unit that activates the control unit when a predetermined activation condition is satisfied, and a communication unit that transmits information on a measurement result by the measurement sensor,
- the base station apparatus receives information transmitted from the terminal apparatus.
- the activation unit activates the control unit when a predetermined activation condition is satisfied, and the measurement unit activates the measurement sensor from a non-activated state when activated. Switching to a state, the measurement sensor measures a physical quantity to be measured, and the communication unit transmits information on a measurement result obtained by the measurement sensor.
- the terminal device According to the terminal device, the communication system, and the terminal device activation method according to the present invention, it is possible to realize high-performance sensing and low power consumption.
- FIG. 1 is a schematic block diagram showing a configuration of a sensor terminal device 1 (an example of a terminal device) according to the first embodiment of the present invention.
- the sensor terminal device 1 according to the present embodiment includes an activation unit 11, a control unit 12, a sensor unit 13, a communication unit 14, and a power supply 15.
- the sensor unit 13 includes measurement sensors 21-1 to 21-n.
- FIG. 1 shows an example in which there are a plurality of measurement sensors, a single sensor may be used.
- the activation unit 11 includes one or more activation sensors that detect changes in the environment around the sensor terminal device 1.
- the activation unit 11 sends a predetermined signal to the control unit 12 and an interrupt signal to the control unit 12 when the activation sensor detects that a change in the environment around the sensor terminal device 1 satisfies a predetermined activation condition. Send as.
- the activation unit 11 functions as a switch for activation.
- the activation unit 11 uses, as the predetermined signal, a predetermined signal for activating the control unit 12 when a change in the environment around the sensor terminal device 1 satisfies a predetermined activation condition. It has a circuit configuration for transmitting a signal having a level exceeding the threshold value as an interrupt signal.
- the activation sensor transmits an interrupt signal to the control unit 12 when detecting that a change in the environment around the sensor terminal device 1 satisfies a predetermined activation condition.
- the activation sensor always transmits a signal corresponding to the detection result as an interrupt signal to the control unit 12, and when the level of the interrupt signal input to the control unit 12 exceeds a predetermined threshold, the control unit actually It is also possible to use a configuration in which an interrupt is made to 12.
- various conditions may be used as activation conditions for the activation unit 11 to transmit an interrupt signal to the control unit 12.
- the amount of change in the environment around the sensor terminal device 1 is a predetermined threshold value.
- the above condition can be used.
- an interrupt signal is used as a signal for the activation unit 11 to activate the control unit 12, but other signals may be used.
- the activation unit 11 includes a plurality of activation sensors
- each activation sensor operates independently and detects a change in the surrounding environment that satisfies a predetermined activation condition
- a configuration for transmitting an interrupt signal to the control unit 12 can be used, and this configuration is used in the present embodiment.
- the activation unit 11 includes a plurality of activation sensors
- sensors that detect the same physical quantity with the same sensitivity and resolution may be used as the plurality of activation sensors, or the same physical quantity may be used.
- Sensors that detect with different sensitivities and resolutions may be used, sensors that detect different physical quantities may be used, or a combination of these may be used.
- the control unit 12 is always supplied with power from the power supply 15, but is normally in a sleep state.
- the control unit 12 is activated when the input value at the input end of the interrupt signal from the activation unit 11 exceeds a predetermined threshold.
- the control unit 12 shifts from the sleep state to the activation state.
- the sleep state is used as the state when the control unit 12 is not activated.
- another state that consumes less power than when activated is used. Good.
- a sensor that does not require electric power is used as the activation sensor in order to detect a change in the surrounding environment. For this reason, the activation unit 11 is not connected to the power supply 15.
- a sensor that detects various objects may be used.
- a sensor using a material such as a magnetic material, a thermoelectric element, a piezoelectric element, or a pyroelectric element can be used.
- power consumption during standby is substantially zero, and the environment in which the sensor terminal device 1 is placed (for example, any one of electromagnetic waves, temperature, pressure, air flow, sound waves, fine particle flow, etc.) Changes can be detected.
- a voltage corresponding to the flow velocity is generated.
- the control unit 12 is activated.
- a power generation type acceleration sensor or the like can also be used as the activation sensor.
- a sensor that does not require external power supply to detect a change in the surrounding environment is used as the activation sensor.
- a change in the surrounding environment is used.
- a sensor that requires a lower power supply than the measurement sensor from the outside may be used.
- a battery is provided in the activation sensor, and power from the battery is supplied to the activation sensor, or power from the power source 15 provided in the sensor terminal device 1 is activated.
- a configuration for supplying to the sensor can be used.
- a sensor terminal device with low power consumption can be realized by using an activation sensor that is driven with lower power consumption than the measurement sensor while receiving external power supply.
- control unit 12 When the control unit 12 enters the activated state, the control unit 12 supplies power from the power source 15 to the measurement sensors 21-1 to 21-n provided in the sensor unit 13, thereby the measurement sensors 21-1 to 21-21. -N is started. When activated, each of the measurement sensors 21-1 to 21-n measures each measurement target (physical quantity) at the measurement time after the preparation time. This measurement result is output to the control unit 12.
- each of the measurement sensors 21-1 to 21-n a sensor that requires electric power to detect a change in the surrounding environment is used.
- a sensor that does not require power to detect a change in the surrounding environment may be used in part.
- Such a sensor can also be used as an activation sensor.
- Various sensors may be used as the measurement sensors 21-1 to 21-n. For example, vibration sensors, acceleration sensors, video cameras, smoke sensors, humidity sensors, and the like may be used. Then, the measurement sensors 21-1 to 21-n can measure various things such as temperature, humidity, flow rate, flow velocity, illuminance, and human feeling.
- an object (physical quantity) to be measured by the measurement sensors 21-1 to 21-n and an object (physical quantity) to be detected by the activation sensor are those having a correlation (causal relationship).
- Examples of those having a correlation include a physical quantity that is the same as the physical quantity detected by the activation sensor, or a different physical quantity that is estimated to change when a change in the target physical quantity is detected by the activation sensor.
- a physical quantity that is the same as the physical quantity detected by the activation sensor or a different physical quantity that is estimated to change when a change in the target physical quantity is detected by the activation sensor.
- a start sensor when a person passes, light, vibration, temperature, and the like may change. Therefore, one or more physical quantities of these may be detected by a start sensor, and one or more of these physical quantities may be the same or different. It can be measured by the measuring sensors 21-1 to 21-n.
- each of the measurement sensors 21-1 to 21-n a sensor that outputs the measurement result as an analog signal during the measurement time is used.
- the measurement result is a digital signal.
- An output sensor may be used.
- the control unit 12 operates digitally, and the analog signals are converted from analog to digital (A / D) when the measurement sensors 21-1 to 21-n output measurement results as analog signals. Convert to digital signal.
- the control unit 12 enters a sleep state while the measurement sensors 21-1 to 21-n are in the preparation time, and suppresses power consumption.
- the control unit 12 is activated again and acquires the measurement results obtained by the measurement sensors 21-1 to 21-n.
- the preparation time of each of the measurement sensors 21-1 to 21-n is A configuration may be used in which the control unit 12 returns from the sleep state to the activated state slightly before the end. Further, when a measurement sensor is in preparation time but it is necessary to acquire a measurement result from another measurement sensor, the control unit 12 enters an activated state without entering a sleep state.
- the control unit 12 outputs the measurement results input and acquired from the measurement sensors 21-1 to 21-n to the communication unit 14.
- the communication unit 14 transmits the measurement result input from the control unit 12 to a base station device (not shown in FIG. 1).
- the communication unit 14 may perform wired communication or may perform wireless communication.
- the power supply 15 supplies power to the control unit 12, the measurement sensors 21-1 to 21-n provided in the sensor unit 13, and the communication unit 14.
- the control unit 12 controls the supply of power from the power supply 15 to each of the measurement sensors 21-1 to 21-n provided in the sensor unit 13.
- a battery such as a storage battery can be used.
- FIG. 2 is a diagram illustrating a flowchart of operations performed by the sensor terminal device 1 according to the present embodiment.
- the operation according to the presence or absence of detection of the detection target by the activation sensor provided in the activation unit 11 is described as one operation. However, in the present embodiment, such an operation is always performed. ing.
- control unit 12 When the control unit 12 is in the sleep state, if there is no input of the detection target (in this embodiment, the amount of change in the environment around the sensor terminal device 1) to the activation sensor provided in the activation unit 11 (step S1) Since the detection target is not detected by the activation sensor, the control unit 12 continues the sleep state.
- the detection target in this embodiment, the amount of change in the environment around the sensor terminal device 1
- step S1 Since the detection target is not detected by the activation sensor, the control unit 12 continues the sleep state.
- step S1 When the control unit 12 is in the sleep state, an input to be detected is input to the activation sensor provided in the activation unit 11 (step S1). For example, the input level is lower than a predetermined threshold value. If the activation condition is not satisfied (step S2), the control unit 12 continues the sleep state. In addition, when the control unit 12 is in the sleep state, there is an input to be detected to the activation sensor provided in the activation unit 11 (step S1), and for example, the input level is equal to or higher than a predetermined threshold. When a predetermined activation condition is satisfied (step S2), the activation sensor outputs an interrupt signal to the control unit 12.
- Step S3 When the interrupt signal is input from the activation unit 11 (in this embodiment, the activation sensor provided in the activation unit 11), the control unit 12 shifts to the activation state and drives when the sleep unit is in the sleep state.
- the control unit 12 controls to supply power from the power supply 15 to each of the measurement sensors 21-1 to 21-n.
- each of the measurement sensors 21-1 to 21-n is activated (step S4).
- each of the measurement sensors 21-1 to 21-n When each of the measurement sensors 21-1 to 21-n is activated, it measures a measurement target and outputs the measurement result to the control unit 12.
- the control unit 12 outputs the measurement results input from the measurement sensors 21-1 to 21-n to the communication unit 14.
- the communication part 14 transmits the measurement result input from the control part 12 to a base station apparatus (not shown in FIG. 1) (step S5).
- control unit 12 when the control unit 12 is in the sleep state, the control unit 12 is activated by the activation unit 11, and the control unit 12 applies power from the power source 15 to each measurement sensor 21-1 to 21-n.
- the control unit 12 controls to stop the supply of power from the power source 15 to the measurement sensors 21-1 to 21-n for which the measurement results have been acquired, When the measurement result acquisition process ends, the control unit 12 transitions to the sleep state again.
- the activation sensor for activating the control unit 12 that controls the measurement sensors 21-1 to 21-n activates the control unit 12.
- the control unit 12 and the measurement sensors 21-1 to 21-n can stand by without using power and can save power.
- the control unit 12 consumes power when in the sleep state, the corresponding power is used.
- This effect can also be obtained when the start-up sensor does not generate power itself and is driven by being supplied with lower power from the power supply 15 than the measurement sensor. Further, when the start sensor is driven by generating power by itself according to the environmental change, further power saving effect can be obtained.
- the sensor terminal device 1 power consumption (standby power) can be significantly reduced, and the life of the power supply 15 made of, for example, a battery can be extended. Thereby, the frequency and cost of maintenance such as battery replacement for the sensor terminal device 1 can be reduced, and the influence of the sensor network on the environment (for example, power consumption and battery disposal) can be reduced. it can. Further, in the case where the life of the power source 15 only needs to be the same as that not according to the present embodiment, for example, the size of the battery used as the power source 15 can be reduced, whereby the sensor terminal device 1 Can be reduced in size.
- control unit 12 and the measurement sensors 21-1 to 21-n operate only when a predetermined activation condition is satisfied based on changes in the surrounding environment, it is efficient. Further, when a power generation type sensor is used as the activation sensor, it is easy to generate an interrupt signal to the control unit 12.
- the sensor terminal device 1 according to the present embodiment includes the measurement sensors 21-1 to 21-n in addition to the activation sensor, it is possible to make them different.
- the measurement sensors 21-1 to 21-n it is possible to increase the degree of freedom in selecting the sensor (the degree of freedom in design), various types of sensors can be used, and the sensor terminal device 1 can be improved. Can be functionalized. Therefore, in the sensor terminal device 1 according to the present embodiment, high-performance sensing and low power consumption can be realized.
- the configuration of the sensor terminal device 1 according to the present embodiment can also be understood as follows. That is, the sensor terminal device 1 includes one or more measurement sensors 21-1 to 21-n, a first power consumption state in which the measurement sensors 21-1 to 21-n are in a non-activated state, and a measurement sensor.
- 21-1 to 21-n are activated states, the control unit 12 switching between the second power consumption state that consumes more power than the first power consumption state, and the control unit 12 is activated with respect to the control unit 12
- An activation unit 11 that transmits an interrupt signal, a communication unit 14 that communicates information on measurement results obtained from the measurement sensors 21-1 to 21-n via the control unit 12, and measurement sensors 21-1 to 21- 21-n, a control unit 12 and a power source 15 for supplying power to the communication unit 14.
- the starting method of such a sensor terminal device 1 can also be grasped as follows. That is, in the sensor terminal device 1, a step in which the activation unit 11 is activated based on a change in environment, a step in which the activated activation unit 11 transmits an interrupt signal to the control unit 12 and activates the control unit 12, According to the activation state, the unit 12 has a first power consumption state in which the measurement sensors 21-1 to 21-n are in a non-activation state, and the measurement sensors 21-1 to 21-n are in an activation state. Switching between a second power consumption state that consumes more power than the first power consumption state.
- the first power consumption state a state where the power consumption of the control unit 12 is not necessarily used. For example, the control unit 12 may consume less power than at the time of activation.
- FIG. 3 is a schematic block diagram showing a configuration of a sensor terminal device 31 (an example of a terminal device) according to the second embodiment of the present invention.
- the sensor terminal device 31 according to the present embodiment includes an activation unit 11, a control unit 12, and a sensor unit as the same components as those provided in the sensor terminal device 1 according to the first embodiment shown in FIG. 1. 13, a communication unit 14, and a power supply 15, and further includes a charging unit 41.
- the configuration and operation of the sensor terminal device 31 according to the present embodiment are related to the point that the charging unit 41 is provided as compared with the sensor terminal device 1 according to the first embodiment shown in FIG.
- the other points are the same, and in this embodiment, different points will be described in detail.
- the activation sensor provided in the activation unit 11 a sensor that does not require electric power to detect a change in the surrounding environment and that generates and drives itself according to the environment change is used. .
- the activation unit 11 is when the amount of power generation performed based on the environmental change in the activation sensor is not sufficient to activate the control unit 12, that is, when the predetermined activation condition is not satisfied. Stores (charges) the generated power in the charging unit 41.
- the activation unit 11 is sufficient when the amount of power generation performed based on the environmental change in the activation sensor is sufficient to activate the control unit 12, that is, when a predetermined activation condition is satisfied.
- a configuration may be used in which the generated power is used to activate and drive the control unit 12 and the remaining power in the generated power is stored in the charging unit 41.
- a configuration in which the generated power is stored in the charging unit 41 both when the activation unit 11 does not satisfy the predetermined activation condition and when the activation unit 11 satisfies the predetermined activation condition can be used.
- the charging unit 41 stores power using the power supplied from the activation unit 11 and supplies the stored power to the control unit 12, the measurement sensors 21-1 to 21-n provided in the sensor unit 13, and the communication unit 14. Is possible.
- the charging unit 41 is configured to supply power to the measurement sensors 21-1 to 21-n. Specifically, when the charging unit 41 is fully charged, the charging unit 41 is used for measurement. Electric power is supplied from the charging unit 41 to the sensors 21-1 to 21-n. In addition, when the charging unit 41 is fully charged, the power from the charging unit 41 is used to perform a maintenance mode operation for inspecting whether or not the measurement sensors 21-1 to 21-n are out of order. .
- the function of executing the operation in the maintenance mode is provided in the sensor unit 13, for example.
- a storage battery secondary battery
- a capacitor or the like can be used as another example.
- the charging unit 41 when the charging unit 41 is fully charged, whether power is supplied to the measurement sensors 21-1 to 21-n or whether there is a failure in the measurement sensors 21-1 to 21-n.
- the configuration is such that the operation of the maintenance mode to be inspected is performed, as another example, when the charging unit 41 is charged by an amount equal to or greater than a predetermined threshold value, such power supply and maintenance are performed.
- a configuration for executing the mode operation can also be used.
- FIG. 4 is a diagram illustrating a flowchart of operations performed by the sensor terminal device 31 according to the present embodiment.
- the operation according to the presence or absence of detection of the detection target by the activation sensor provided in the activation unit 11 is described as one operation. However, in the present embodiment, such an operation is always performed. ing.
- the control unit 12 When the control unit 12 is in the sleep state, if there is no input of the detection target (in this embodiment, the amount of change in the environment around the sensor terminal device 31) to the activation sensor provided in the activation unit 11 (step S11) Since the detection target is not detected by the activation sensor, the control unit 12 continues the sleep state.
- step S11 When the control unit 12 is in the sleep state, there is an input to be detected to the activation sensor provided in the activation unit 11 (step S11), and for example, the input level is equal to or higher than a predetermined threshold value.
- step S12 the activation sensor outputs an interrupt signal to the control unit 12.
- the control unit 12 shifts to the activation state and drives when the sleep unit is in the sleep state. (Step S13).
- the control unit 12 controls to supply power from the power supply 15 to the measurement sensors 21-1 to 21-n.
- the measurement sensors 21-1 to 21-n are activated (step S14).
- the measurement sensors 21-1 to 21-n measure the measurement target and output the measurement results to the control unit 12.
- the control unit 12 outputs the measurement results input from the measurement sensors 21-1 to 21-n to the communication unit 14.
- the communication part 14 transmits the measurement result input from the control part 12 to a base station apparatus (not shown in FIG. 3) (step S15).
- step S11 when the control unit 12 is in the sleep state, an input to be detected is input to the activation sensor provided in the activation unit 11 (step S11). For example, the input level is lower than a predetermined threshold. If the predetermined activation condition is not satisfied (step S12), the control unit 12 continues the sleep state. In this case, when the charging of the charging unit 41 is full and completed (step S16), the operation in the maintenance mode is executed using the power stored in the charging unit 41 (step S17). . On the other hand, there is an input to be detected by the activation sensor provided in the activation unit 11 (step S11), but the predetermined activation condition is not satisfied, for example, the input level is lower than a predetermined threshold. When the charging of the charging unit 41 is not full and has not been completed (step S16), charging from the starting unit 11 to the charging unit 41 is performed (step S18).
- control unit 12 when the control unit 12 is in the sleep state, the control unit 12 is activated by the activation unit 11, and the control unit 12 applies power from the power source 15 to each measurement sensor 21-1 to 21-n.
- the control unit 12 controls to stop the supply of power from the power source 15 to the measurement sensors 21-1 to 21-n for which the measurement results have been acquired, The said control part 12 transfers to a sleep state again.
- the sensor terminal device 31 according to the present embodiment high-performance sensing and low power consumption can be realized as in the sensor terminal device 1 according to the first embodiment. Further, in the sensor terminal device 31 according to the present embodiment, power consumption of the power source 15 can be reduced by storing the power generated by the activation unit 11 in the charging unit 41 and using the stored power. Further, in the sensor terminal device 31 according to the present embodiment, the maintenance operation of the measurement sensors 21-1 to 21-n is performed using the power stored in the charging unit 41, for example, the measurement sensor 21-1 to 21-n can know the failure in advance of actually performing the measurement, and can prevent an error due to the failure of the measurement sensors 21-1 to 21-n being driven.
- the activation condition in the activation unit 11 is Since communication is performed when the condition is satisfied, communication is performed irregularly, and it is considered that a failure is hardly detected.
- the sensor terminal device 31 according to the present embodiment even when the control unit 12 is not activated, it is possible to find a failure by executing the maintenance operation, which has a great effect. Can do.
- the sensor terminal device 31 according to the present embodiment does not require, for example, a configuration or operation that includes a timer and periodically starts to detect the presence or absence of a measurement sensor failure. Therefore, the power consumption can be reduced by eliminating the timer necessary for such a configuration and operation.
- FIG. 5 is a schematic block diagram showing a configuration of a sensor network system (an example of a communication system) according to the third embodiment of the present invention.
- the sensor network system according to the present embodiment includes a plurality of r sensor terminal apparatuses 101-1 to 101-r (an example of a terminal apparatus), a plurality of relay station apparatuses 111 to 117, and a plurality of base station apparatuses 121. To 123. Note that any number of sensor terminal devices, relay station devices, and base station devices may be used.
- Each of the sensor terminal devices 101-1 to 101-r is, for example, the same as the sensor terminal device 1 according to the first embodiment shown in FIG. 1 or the sensor terminal device 31 according to the second embodiment shown in FIG. The same operation is performed.
- each of the sensor terminal devices 101-1 to 101-r wirelessly transmits information (data) of measurement results obtained by the measurement sensors provided therein.
- Each of the relay station devices 111 to 117 receives information wirelessly transmitted from the sensor terminal devices 101-1 to 101-r existing in the communication area, and transmits the information by wire.
- Each base station apparatus 121 to 123 receives information transmitted by wire from the relay station apparatuses 111 to 117 existing under the base station apparatus 121 to 123.
- information of measurement results obtained by the measurement sensors provided in the sensor terminal devices 101-1 to 101-r is collected by the base station devices 121 to 123, and the information is collected. Can be managed by storing them in a storage device (not shown).
- the configuration in which the information transmitted from the sensor terminal devices 101-1 to 101-r is transmitted to the base station devices 121 to 123 via the relay station devices 111 to 117 is shown.
- a configuration in which information transmitted from the sensor terminal devices 101-1 to 101-r is directly transmitted to the base station devices 121 to 123 may be used.
- Each communication is not limited to the present embodiment, and wired communication may be used, or wireless communication may be used.
- the sensor network system may be applied to various scenes.
- the sensor network system may be applied to a sensor network in a clean room, a home security sensor network, an environmental monitoring sensor network, or the like.
- each of the sensor terminal devices 101-1 to 101-r includes a particle sensor, a flow sensor, or the like as a measurement sensor, and the measurement results obtained by these measurement sensors are used as base station devices 121 to 123. Can be collected and managed.
- a part of the device for example, the function of the control unit 12 may be realized by a computer.
- a program for realizing the control function is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed by the computer system.
- the computer system mentioned here includes an operating system (OS) and peripheral device hardware.
- the computer-readable recording medium refers to a portable recording medium such as a flexible disk, a magneto-optical disk, an optical disk, and a memory card, and a storage device such as a magnetic hard disk and a solid state drive built in the computer system.
- a computer-readable recording medium holds a program dynamically for a short period of time, such as a computer network such as the Internet, or a communication line when transmitting a program via a telephone line or a mobile phone network. It is also possible to include one that holds a program for a certain period of time, such as a volatile memory inside a computer system that becomes a server device or a client in that case. Further, the above program may be for realizing a part of the above-described functions, and further, the above-described functions are realized by a combination with a program already recorded in a computer system. Also good.
- the terminal device, communication system, and terminal device activation method according to the present invention can be applied to, for example, various sensor networks.
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Abstract
Description
特許文献1に記載されたワイヤレスセンサでは、無電力で作動するセンサがON状態の時に電源部の電力を供給可能とし、当該センサがOFF状態の時に当該電源部の電力を供給不能とし、発信部が当該電源部の電力を供給されて所定の情報を無線で外部に発信することが行われる。
(第1の実施形態)
図1は、本発明の第1の実施形態に係るセンサ端末装置1(端末装置の一例)の構成を示す概略ブロック図である。
本実施形態に係るセンサ端末装置1は、起動部11と、制御部12と、センサ部13と、通信部14と、電源15と、を備えている。センサ部13には、計測用センサ21-1~21-nを備えている。図1では、計測用センサが複数個である例を示しているが、単数でも良い。
ここで、本実施形態では、起動部11は、前記所定の信号として、センサ端末装置1の周囲の環境の変化が所定の起動条件を満たした場合に、制御部12を起動させるための所定の閾値を超えるレベルの信号を割り込み信号として送信する回路構成を有している。
なお、本実施形態では、起動部11が制御部12を起動させるための信号として、割り込み信号を用いるが、他の信号が用いられてもよい。
このように、本実施形態では、制御部12に起動部11からの割り込み信号が入力された場合に、制御部12がスリープ状態から起動状態へ移行する。
なお、本実施形態では、制御部12が起動していない時の状態として、スリープ状態を用いるが、他の例として、起動しているときよりも消費電力が少ない他の状態が用いられてもよい。
起動用センサとしては、様々な対象(物理量)を検出するセンサが用いられてもよく、例えば、磁性体、熱電素子、圧電素子、焦電素子などの材料を使用したセンサを用いることができる。このような起動用センサでは、待機中の消費電力は実質上ゼロであり、センサ端末装置1が置かれた環境(例えば、電磁波、温度、圧力、空気流、音波、微粒子流などのいずれか)の変化を検出することができる。
具体例として、起動用センサとして圧電体を使用したフローセンサを用いると、流速に応じた電圧を発生する。この場合、センサ端末装置1の周囲の流体の速度が一定値を超えると、制御部12が起動する。起動用センサとしては、他にも、発電型の加速度センサなどを用いることもできる。
各計測用センサ21-1~21-nは、起動されると、準備時間を経た後に計測時間に、各々の計測対象(物理量)を計測する。この計測結果は制御部12へ出力される。
また、各計測用センサ21-1~21-nとしては、様々なセンサが用いられてもよく、例えば、振動センサ、加速度センサ、ビデオカメラ、煙センサ、湿度センサなどを用いることができる。そして、各計測用センサ21-1~21-nにより、例えば、温度、湿度、流量、流速、照度、人感など、種々なものを計測することができる。
本実施形態では、制御部12は、デジタルで動作し、計測用センサ21-1~21-nが計測結果をアナログ信号で出力するものについてはそのアナログ信号をA/D(Analog to Digital)変換器でデジタル信号へ変換する。
通信部14は、制御部12から入力された計測結果を基地局装置(図1では、図示せず)へ送信する。なお、通信部14では、有線の通信が行われてもよく、或いは、無線の通信が行われてもよい。
電源15は、制御部12や、センサ部13に備えられた各計測用センサ21-1~21-nや、通信部14へ電力を供給する。本実施形態では、制御部12が、電源15からセンサ部13に備えられた各計測用センサ21-1~21-nへの電力の供給を制御する。なお、電源15としては、例えば、蓄電池などの電池を用いることができる。
このフローチャートの説明では、起動部11に備えられた起動用センサによる検出対象の検出の有無に応じた動作を1回の動作として説明するが、本実施形態では、このような動作が常時行われている。
また、制御部12がスリープ状態である時に、起動部11に備えられた起動用センサへ検出対象の入力があり(ステップS1)、例えばその入力のレベルが所定の閾値以上であるというように、所定の起動条件を満たした場合には(ステップS2)、起動用センサは割り込み信号を制御部12へ出力する。
各計測用センサ21-1~21-nは、起動すると、計測対象を計測して、その計測結果を制御部12へ出力する。制御部12は、各計測用センサ21-1~21-nから入力された計測結果を通信部14へ出力する。通信部14は、制御部12から入力された計測結果を基地局装置(図1では、図示せず)へ送信する(ステップS5)。
なお、この効果は、起動用センサが自己で発電せずに電源15から計測用センサに比べ低電力の供給を受け駆動する場合にも得られる。また、起動用センサが環境変化に応じて自己で発電して駆動する場合には、更に節電の効果を得ることができる。
また、起動用センサとして発電型のセンサが用いられる場合には、制御部12への割り込み信号の生成が容易である。
従って、本実施形態に係るセンサ端末装置1では、高性能なセンシングと低消費電力化を実現することができる。
すなわち、センサ端末装置1は、1つ以上の計測用センサ21-1~21-nと、計測用センサ21-1~21-nが非起動状態である第一消費電力状態と、計測用センサ21-1~21-nが起動状態であり前記第一消費電力状態よりも電力を消費する第二消費電力状態とで切り替える制御部12と、制御部12に対して当該制御部12を起動する割り込み信号を送信する起動部11と、計測用センサ21-1~21-nから制御部12を介して得られる計測結果の情報を外部と通信する通信部14と、計測用センサ21-1~21-nと制御部12と通信部14へ電力を供給する電源15と、を備える。
すなわち、センサ端末装置1では、環境の変化に基づいて起動部11が起動するステップと、起動した起動部11が割り込み信号を制御部12へ送信して当該制御部12を起動するステップと、制御部12が、その起動状態に応じて、計測用センサ21-1~21-nが非起動状態である第一消費電力状態と、計測用センサ21-1~21-nが起動状態であり前記第一消費電力状態よりも電力を消費する第二消費電力状態とで切り替えるステップと、を有する。
ここで、第一消費電力状態では、必ずしも制御部12の消費電力がゼロである状態が用いられなくてもよく、例えば、制御部12で起動時よりも少ない電力を消費してもよい。
図3は、本発明の第2の実施形態に係るセンサ端末装置31(端末装置の一例)の構成を示す概略ブロック図である。
本実施形態に係るセンサ端末装置31は、図1に示される第1の実施形態に係るセンサ端末装置1に備えられるものと同様な構成部として、起動部11と、制御部12と、センサ部13と、通信部14と、電源15と、を備えており、更に、充電部41を備えている。
ここで、本実施形態に係るセンサ端末装置31の構成や動作は、図1に示される第1の実施形態に係るセンサ端末装置1と比べて、充電部41を備えている点に関連する部分以外は同様であり、本実施形態では、異なる点について詳しく説明する。
本実施形態では、起動部11は、起動用センサにおいて環境変化に基づいて行った発電の量が制御部12を起動させるのに十分ではなかった場合、すなわち、所定の起動条件を満たさない場合には、発電した電力を充電部41に蓄電(充電)する。
本実施形態では、充電部41は、計測用センサ21-1~21-nへの電力供給を行う構成としてあり、具体的には、当該充電部41が完全に充電された場合に、計測用センサ21-1~21-nへの電力供給を当該充電部41から行う。また、充電部41が完全に充電された場合に、当該充電部41からの電力を使用して、計測用センサ21-1~21-nの故障の有無を検査するメンテナンスモードの動作を実行する。
また、充電部41としては、本実施形態では、蓄電池(2次電池)が用いられており、他の例として、コンデンサなどを用いることもできる。
なお、本実施形態では、充電部41が完全に充電された場合に、計測用センサ21-1~21-nへの電力供給や、計測用センサ21-1~21-nの故障の有無を検査するメンテナンスモードの動作の実行を行う構成としたが、他の例として、充電部41が、任意に設定された所定の閾値以上の量、充電された場合に、このような電力供給やメンテナンスモードの動作の実行を行う構成を用いることもできる。
このフローチャートの説明では、起動部11に備えられた起動用センサによる検出対象の検出の有無に応じた動作を1回の動作として説明するが、本実施形態では、このような動作が常時行われている。
制御部12がスリープ状態である時に、起動部11に備えられた起動用センサへ検出対象(本実施形態では、センサ端末装置31の周囲の環境の変化量)の入力がない場合には(ステップS11)、起動用センサにより検出対象が検出されないため、制御部12はスリープ状態を継続する。
計測用センサ21-1~21-nは、起動すると、計測対象を計測して、その計測結果を制御部12へ出力する。制御部12は、計測用センサ21-1~21-nから入力された計測結果を通信部14へ出力する。通信部14は、制御部12から入力された計測結果を基地局装置(図3では、図示せず)へ送信する(ステップS15)。
また、本実施形態に係るセンサ端末装置31では、起動部11が発電した電力を充電部41に蓄電して、蓄電した電力を使用することにより、電源15の電力の消費を減らすことができる。
また、本実施形態に係るセンサ端末装置31では、充電部41に蓄電された電力を使用して計測用センサ21-1~21-nのメンテナンスの動作を実行することにより、例えば、計測用センサ21-1~21-nにより実際に計測を行うよりも事前に故障を知ることができ、故障した計測用センサ21-1~21-nが駆動しないことによるエラーを防ぐことができる。
図5は、本発明の第3の実施形態に係るセンサネットワークシステム(通信システムの一例)の構成を示す概略ブロック図である。
本実施形態に係るセンサネットワークシステムは、複数であるr個のセンサ端末装置101-1~101-r(端末装置の一例)と、複数の中継局装置111~117と、複数の基地局装置121~123と、を備えている。
なお、センサ端末装置や中継局装置や基地局装置のそれぞれの数としては、任意の数が用いられてもよい。
各中継局装置111~117は、それぞれが通信する領域に存在するセンサ端末装置101-1~101-rから無線送信された情報を受信して、その情報を有線で送信する。
各基地局装置121~123は、それぞれの配下に存在する中継局装置111~117から有線で送信された情報を受信する。
また、それぞれの通信については、本実施形態に限られず、有線の通信が用いられてもよく、或いは、無線の通信が用いられてもよい。
11・・・起動部
12・・・制御部
13・・・センサ部
14・・・通信部
15・・・電源
21-1~21-n・・・計測用センサ
31・・・センサ端末装置
41・・・充電部
101-1~101-r・・・センサ端末装置
111~117・・・中継局装置
121~123・・・基地局装置
Claims (10)
- 計測対象の物理量を計測する計測用センサと、
起動された場合に前記計測用センサを非起動状態から起動状態へ切り替える制御部と、
前記計測用センサに比べ低消費電力で駆動し、前記計測対象の物理量と相関を有する物理量が、所定の起動条件として満たされた場合に前記制御部を起動させる起動部と、
を備えたことを特徴とする端末装置。 - 前記起動部は、環境の変化に基づいて発電することにより駆動する起動用のセンサを有しており、前記起動用のセンサによる検出結果に基づいて前記所定の起動条件が満たされた場合に、前記制御部を起動させる、
ことを特徴とする請求項1に記載の端末装置。 - 前記起動部が有する前記起動用のセンサで発電した電力を使用して蓄電される充電部を備えた、
ことを特徴とする請求項2に記載の端末装置。 - 前記所定の起動条件が満たされない場合に、前記起動用のセンサで発電した電力が前記充電部に蓄電される、
ことを特徴とする請求項3に記載の端末装置。 - 前記充電部が所定の閾値以上に蓄電した場合に、前記充電部が蓄電した電力を使用して、前記計測用センサの故障の有無を検査するメンテナンスモードの動作を実行する、
ことを特徴とする請求項3又は請求項4に記載の端末装置。 - 前記充電部が所定の閾値以上に充電した場合に、前記充電部が蓄電した電力が前記計測用センサへ供給される、
ことを特徴とする請求項3乃至請求項5のいずれか1項に記載の端末装置。 - 前記計測用センサを複数備えた、
ことを特徴とする請求項1乃至請求項6のいずれか1項に記載の端末装置。 - 前記制御部は、起動した場合に、前記計測用センサへの電力が非供給である状態から供給される状態へ切り替えることにより、前記計測用センサを非起動状態から起動状態へ切り替える、
ことを特徴とする請求項1乃至請求項7のいずれか1項に記載の端末装置。 - 端末装置と、基地局装置と、を有し、
前記端末装置は、計測対象の物理量を計測する計測用センサと、
起動された場合に前記計測用センサを非起動状態から起動状態へ切り替える制御部と、
所定の起動条件が満たされた場合に前記制御部を起動させる起動部と、
前記計測用センサによる計測結果の情報を送信する通信部と、を備え、
前記基地局装置は、前記端末装置から送信された情報を受信する、
ことを特徴とする通信システム。 - 起動部が、所定の起動条件が満たされた場合に制御部を起動させ、
前記制御部が、起動された場合に計測用センサを非起動状態から起動状態へ切り替え、
前記計測用センサが、計測対象の物理量を計測し、
通信部が、前記計測用センサによる計測結果の情報を送信する、
ことを特徴とする端末装置の起動方法。
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JP5807871B2 (ja) * | 2011-06-27 | 2015-11-10 | セイコーインスツル株式会社 | 端末装置、通信システム及び端末装置の起動方法 |
JP6123442B2 (ja) | 2013-04-09 | 2017-05-10 | オムロン株式会社 | センサ装置、計測システム、および計測方法 |
US10823592B2 (en) | 2013-09-26 | 2020-11-03 | Rosemount Inc. | Process device with process variable measurement using image capture device |
US11076113B2 (en) | 2013-09-26 | 2021-07-27 | Rosemount Inc. | Industrial process diagnostics using infrared thermal sensing |
US10638093B2 (en) | 2013-09-26 | 2020-04-28 | Rosemount Inc. | Wireless industrial process field device with imaging |
US9488527B2 (en) | 2014-03-25 | 2016-11-08 | Rosemount Inc. | Process temperature measurement using infrared detector |
US9857228B2 (en) | 2014-03-25 | 2018-01-02 | Rosemount Inc. | Process conduit anomaly detection using thermal imaging |
US10914635B2 (en) * | 2014-09-29 | 2021-02-09 | Rosemount Inc. | Wireless industrial process monitor |
US9881253B2 (en) * | 2014-11-07 | 2018-01-30 | International Business Machines Corporation | Synaptic neural network core based sensor system |
US11223931B2 (en) * | 2017-10-06 | 2022-01-11 | Sumitomo Electric Industries, Ltd. | Wireless sensor system, wireless terminal device, relay device, communication control method, and communication control program |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008186336A (ja) * | 2007-01-31 | 2008-08-14 | Yaskawa Electric Corp | センサ装置 |
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KR101518830B1 (ko) * | 2008-09-02 | 2015-05-12 | 삼성전자주식회사 | 휴대 단말기의 수집 정보 표시 방법 및 장치 |
US20100146356A1 (en) * | 2008-12-05 | 2010-06-10 | Electronics And Telecommunications Research Institute | Wireless sensor node |
US20110248846A1 (en) * | 2010-04-13 | 2011-10-13 | Green SHM Systems, Inc, Incorporated | Wireless Sensing Module and Method of Operation |
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2011
- 2011-06-23 JP JP2011139334A patent/JP5822261B2/ja active Active
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2012
- 2012-04-24 WO PCT/JP2012/060991 patent/WO2012176547A1/ja active Application Filing
- 2012-04-24 DE DE112012002604.7T patent/DE112012002604T5/de not_active Ceased
- 2012-04-24 US US14/127,737 patent/US9247374B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2008186336A (ja) * | 2007-01-31 | 2008-08-14 | Yaskawa Electric Corp | センサ装置 |
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US9247374B2 (en) | 2016-01-26 |
JP2013009079A (ja) | 2013-01-10 |
US20140128118A1 (en) | 2014-05-08 |
JP5822261B2 (ja) | 2015-11-24 |
DE112012002604T5 (de) | 2014-03-20 |
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