WO2020213034A1 - センサ装置 - Google Patents
センサ装置 Download PDFInfo
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- WO2020213034A1 WO2020213034A1 PCT/JP2019/016162 JP2019016162W WO2020213034A1 WO 2020213034 A1 WO2020213034 A1 WO 2020213034A1 JP 2019016162 W JP2019016162 W JP 2019016162W WO 2020213034 A1 WO2020213034 A1 WO 2020213034A1
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- WIPO (PCT)
- Prior art keywords
- power supply
- primary battery
- secondary battery
- battery
- voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/46—Accumulators structurally combined with charging apparatus
- H01M10/465—Accumulators structurally combined with charging apparatus with solar battery as charging system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M16/00—Structural combinations of different types of electrochemical generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/001—Energy harvesting or scavenging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/20—The network being internal to a load
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a sensor device equipped with an energy harvest.
- the sensor device equipped with energy harvesting is expected to be used in various markets, and in order to be used in a wide range of markets, it is necessary to have a sensor device that can support multiple power supplies. Therefore, conventionally, a sensor device corresponding to a plurality of power supplies has been proposed (see, for example, Patent Document 1).
- the sensor device described in Patent Document 1 includes a battery that supplies power to the sensor, a DSC unit that is an external power supply unit that supplies power generated by the solar cell to the sensor device, and a battery and DSC that supply power to the sensor. It includes a power supply changeover switch that switches between units and a power supply control unit that controls the power supply changeover switch. Then, the power supply control unit switches to the DSC unit when the voltage of the DSC unit, which is the energy harvesting, satisfies the predetermined reference voltage, and switches to the battery when the voltage of the DSC unit does not meet the predetermined reference voltage. ..
- Patent Document 1 it is not known from the outside whether the power supply source to the sensor is the energy harvesting or the battery, and the operation of the energy harvesting is not known to be unstable. Therefore, there is a problem that it is not possible to grasp whether the sensor device is installed in the optimum environment for energy harvesting.
- the present invention has been made to solve the above problems, and an object of the present invention is to provide a sensor device that shows that the operation of a secondary battery charged by an energy harvest is unstable.
- the sensor device includes a primary battery, a secondary battery charged by an energy harvest, a sensor that operates based on the power supply from the primary battery or the secondary battery, and a power supply source to the sensor.
- the power switching circuit comprises a power switching circuit for switching between the primary battery and the secondary battery, a notification unit for notifying information, and a control device for controlling the sensor and the notification unit.
- the power supply switching circuit supplies the power.
- the source is the secondary battery
- the power supply source is switched to the primary battery when the voltage of the secondary battery becomes lower than the preset primary reference voltage
- the control device is the secondary battery.
- the voltage of the battery becomes lower than the first reference voltage it is notified that the operation of the secondary battery is unstable.
- the sensor device includes a primary battery, a secondary battery charged by an energy harvest, a sensor that operates based on the power supply from the primary battery or the secondary battery, and power to the sensor.
- a power switching circuit that switches the supply source between the primary battery and the secondary battery, a wireless communication unit that wirelessly communicates with an external device and transmits information to be notified to the external device, the sensor, and the wireless communication unit.
- the power supply switching circuit comprises a control device for controlling the above, and the power supply switching circuit supplies the power when the voltage of the secondary battery becomes lower than a preset first reference voltage when the power supply source is the secondary battery.
- the source is switched to the primary battery, and the control device notifies that the operation of the secondary battery is unstable when the voltage of the secondary battery becomes lower than the primary reference voltage. is there.
- the control device uses energy harvesting to notify that the operation of the secondary battery is unstable when the voltage of the secondary battery becomes lower than the first reference voltage. It can be seen that the operation of the rechargeable secondary battery is unstable.
- FIG. 1 is a diagram showing a configuration of a sensor device 100 according to the first embodiment.
- the sensor device 100 according to the first embodiment includes a sensor device substrate 2.
- the sensor device substrate 2 includes a primary battery 4, a secondary battery 5, an energy harvesting module 20, a power switching circuit 3, a power supply IC 9, a control device 10, a storage device 11, and a wireless communication unit 6.
- the notification unit 7 and the sensor 8 are mounted.
- the sensor device 100 includes both the wireless communication unit 6 and the notification unit 7, but the present invention is not limited to this, and a configuration may include only one of them.
- the primary battery 4 is a single-use battery, such as a lithium battery.
- the positive electrode is connected to the power supply switching circuit 3, and the negative electrode is grounded.
- the energy harvest module 20 generates energy harvesting and supplies the electric power to the secondary battery 5.
- the energy harvesting module 20 includes an energy harvesting unit 21 and an energy harvesting circuit 22.
- the energy harvesting unit 21 generates energy for the environment.
- the energy harvesting power generation circuit 22 converts the voltage value of the electric power generated by the energy harvesting unit 21, and the converted electric power charges the secondary battery 5.
- FIG. 2 is a diagram for explaining the energy harvesting unit 21 according to the first embodiment. It is conceivable that the energy harvesting unit 21 uses an energy source as shown in FIG. Specifically, in the environmental power generation unit 21, the energy source shown in A is a visible light power generation unit whose energy source is sunlight or white LED lighting, the energy source shown in B is a vibration power generation unit whose energy source is vibration, and the energy source shown in C is pressure. Is a piezoelectric power generation unit, or a temperature difference power generation unit in which the energy source shown in D is a temperature difference.
- the energy source shown in A is a visible light power generation unit whose energy source is sunlight or white LED lighting
- the energy source shown in B is a vibration power generation unit whose energy source is vibration
- the energy source shown in C is pressure.
- the secondary battery 5 is a rechargeable battery, such as a lithium ion capacitor.
- the positive electrode is connected to the power supply switching circuit 3 and the energy harvesting module 20, and the negative electrode is grounded. Then, the secondary battery 5 charges the electric power supplied from the energy harvesting module 20. That is, the secondary battery 5 is charged by the energy harvest.
- the power switching circuit 3 is connected to the primary battery 4, the secondary battery 5, and the power supply IC 9, and supplies the power supplied from the primary battery 4 or the power supplied from the secondary battery 5 to the power supply IC 9. It switches to. That is, the power supply switching circuit 3 switches the power supply source to the power supply IC 9 between the primary battery 4 and the secondary battery 5.
- the power supply switching circuit 3 includes a switching control unit 3a, a switching unit 3b, a voltage detection circuit 3c, and a current detection circuit 3d.
- the switching unit 3b switches the power supply source to the power supply IC 9.
- the switching control unit 3a controls the switching unit 3b.
- the voltage detection circuit 3c detects the voltage of the primary battery 4 and the secondary battery 5.
- the current detection circuit 3d detects the current flowing from the primary battery 4 and the secondary battery 5.
- the power supply IC 9 supplies the electric power supplied from the primary battery 4 or the secondary battery 5 to the control device 10, the storage device 11, the sensor 8, the notification unit 7, and the wireless communication unit 6. Further, the power supply IC 9 has a function of stabilizing the supply voltage, and is, for example, a supply voltage stabilized power supply such as a DC-DC converter or an LDO (Low Drop Out).
- a supply voltage stabilized power supply such as a DC-DC converter or an LDO (Low Drop Out).
- the wireless communication unit 6 is an interface capable of transmitting and receiving digital or analog signals.
- the wireless communication unit 6 wirelessly communicates with an external device such as a remote controller or a smartphone, and includes, for example, a communication module compatible with a communication standard such as Wi-Fi (registered trademark) or Bluetooth (registered trademark). ing.
- the control device 10 controls the sensor 8, the notification unit 7, and the wireless communication unit 6.
- the control device 10 is composed of, for example, dedicated hardware or a CPU (also referred to as a central processing unit, a central processing unit, a processing unit, an arithmetic unit, a microprocessor, or a processor) that executes a program stored in the storage device 11. ing.
- a CPU also referred to as a central processing unit, a central processing unit, a processing unit, an arithmetic unit, a microprocessor, or a processor
- control device 10 When the control device 10 is dedicated hardware, the control device 10 may be, for example, a single circuit, a composite circuit, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof. Applicable. Each of the functional units realized by the control device 10 may be realized by individual hardware, or each functional unit may be realized by one hardware.
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- each function executed by the control device 10 is realized by software, firmware, or a combination of software and firmware.
- the software and firmware are described as programs and stored in the storage device 11.
- the CPU realizes each function of the control device 10 by reading and executing the program stored in the storage device 11.
- control device 10 may be realized by dedicated hardware, and some may be realized by software or firmware.
- the storage device 11 stores various information.
- the storage device 11 includes a data-rewritable non-volatile semiconductor memory such as a flash memory, an EPROM, and an EEPROM that does not disappear even when the SETET process described later is performed and the initial state is reached.
- the storage device 11 may also include, for example, a non-volatile semiconductor memory such as a ROM in which data cannot be rewritten, or a volatile semiconductor memory in which data such as RAM can be rewritten.
- the notification unit 7 notifies the outside of various information about the sensor device 100 by light, sound, or the like.
- the notification unit 7 is composed of, for example, an LED, a liquid crystal display, a buzzer, a speaker, or the like.
- various information about the sensor device 100 may be notified to the outside by a display means of an external device or the like, and in that case, the sensor device 100 may not be provided with the notification unit 7.
- various information about the sensor device 100 is notified to the outside by the display means of the external device or the like.
- the sensor 8 outputs the detected result to the control device 10.
- the sensor 8 is a temperature sensor that detects temperature, a humidity sensor that detects humidity, a magnetic sensor that detects magnetism, an atmospheric pressure sensor that detects atmospheric pressure, and the like.
- the secondary battery 5 cannot be sufficiently charged unless the energy harvesting unit 21 can sufficiently generate power. Then, the power required for the control device 10 to perform stable sensing using the sensor 8 cannot be supplied from the power supply IC 9 to the control device 10 and the sensor 8, and stable sensing cannot be performed.
- the power supply switching circuit 3 supplies power to the power supply IC 9.
- the source can be switched to the primary battery 4. Therefore, the sensor device 100 can supply the electric power required for the control device 10 to perform stable sensing using the sensor 8 from the power supply IC 9 to the control device 10 and the sensor 8, and stable sensing. Can always be done.
- the sensor device 100 supplies power to the power supply IC 9 by the power supply switching circuit 3 when the environmental power generation unit 21 can sufficiently generate power.
- the source can be switched to the secondary battery 5. Therefore, according to this sensor device 100, the power consumption of the primary battery 4 can be suppressed.
- FIG. 3 is a diagram showing a control flow of the sensor device 100 according to the first embodiment. Next, the details of the control of the sensor device 100 according to the first embodiment will be described with reference to FIG.
- the power supply source to the power supply IC 9 is the secondary battery 5.
- Step S101 The power supply switching circuit 3 determines whether or not the voltage of the secondary battery 5 is equal to or higher than a preset first reference voltage.
- the process proceeds to step S109.
- the power supply switching circuit 3 determines that the voltage of the secondary battery 5 is not equal to or higher than the first reference voltage (NO)
- the process proceeds to step S102.
- the first reference voltage is a value determined based on the voltage required for the control device 10 to perform stable sensing using the sensor 8.
- Step S102 The power supply switching circuit 3 determines whether or not the voltage of the primary battery 4 is less than a preset second reference voltage.
- the process proceeds to step S110.
- the power supply switching circuit 3 determines that the voltage of the primary battery 4 is not less than the second reference voltage (NO)
- the process proceeds to step S103.
- the second reference voltage is a value determined based on the voltage required for the control device 10 to perform stable sensing using the sensor 8.
- Step S103 The power switching circuit 3 switches the power supply source to the power supply IC 9 from the secondary battery 5 to the primary battery 4.
- Step S104 The control device 10 notifies an external device via the notification unit 7 or the wireless communication unit 6 that the operation of the secondary battery 5 is unstable.
- the content of the notification is, for example, "The primary battery is being used because the operation of the secondary battery is unstable."
- both the notification unit 7 and the external device may be configured to notify the above contents.
- Step S105 The power supply switching circuit 3 determines whether or not the voltage of the primary battery 4 is less than a preset second reference voltage. When the power switching circuit 3 determines that the voltage of the primary battery 4 is less than the second reference voltage (YES), the process proceeds to step S106. On the other hand, when the power supply switching circuit 3 determines that the voltage of the primary battery 4 is not less than the second reference voltage (NO), the process proceeds to step S107.
- Step S106 The power switching circuit 3 sets the primary battery voltage drop flag to ON. After that, the SETET process is performed and the initial state is reached. The primary battery voltage drop flag is set to OFF by default. Further, the information of the primary battery voltage drop flag is stored in the non-volatile semiconductor memory of the storage device 11.
- Step S107 The power supply switching circuit 3 determines whether or not the voltage of the secondary battery 5 is equal to or higher than a preset third reference voltage.
- the process proceeds to step S108.
- the power supply switching circuit 3 determines that the voltage of the secondary battery 5 is not equal to or higher than the third reference voltage (NO)
- the process returns to step S105.
- the third reference voltage and the first reference voltage may be the same value or different values, but by setting the third reference voltage to a value larger than the first reference voltage, the power supply source to the power supply IC9 Can be suppressed from being frequently switched between the primary battery 4 and the secondary battery 5.
- Step S108 The power supply switching circuit 3 switches the power supply source to the power supply IC 9 from the primary battery 4 to the secondary battery 5.
- Step S109 The control device 10 determines whether or not the primary battery voltage drop flag is set to ON. When the control device 10 determines that the primary battery voltage drop flag is set to ON (YES), the process proceeds to step S110. On the other hand, when the control device 10 determines that the primary battery voltage drop flag is set to OFF (NO), the process returns to the process of step S101.
- Step S110 The control device 10 notifies an external device via the notification unit 7 or the wireless communication unit 6 that the primary battery 4 needs to be replaced.
- the content of the notification is, for example, "Please replace the primary battery because the battery is dead.”
- both the notification unit 7 and the external device may be configured to notify the above contents.
- the primary battery voltage drop flag is set to OFF.
- the sensor device 100 is a sensor 8 that operates based on the primary battery 4, the secondary battery 5 charged by the energy harvest, and the power supply from the primary battery 4 or the secondary battery 5. And have. Further, the sensor device 100 controls a power supply switching circuit 3 for switching the power supply source to the sensor 8 between the primary battery 4 and the secondary battery 5, a notification unit 7 for notifying information, and the sensor 8 and the notification unit 7. It includes a control device 10. Then, the power supply switching circuit 3 switches the power supply source to the primary battery 4 when the voltage of the secondary battery 5 becomes lower than the preset first reference voltage when the power supply source is the secondary battery 5. .. Further, the control device 10 notifies that the operation of the secondary battery 5 is unstable when the voltage of the secondary battery 5 becomes lower than the first reference voltage.
- the sensor device 100 is a sensor 8 that operates based on the power supply from the primary battery 4, the secondary battery 5 charged by the energy harvest, and the primary battery 4 or the secondary battery 5. And have. Further, the sensor device 100 wirelessly communicates with an external device and transmits various information to be notified to the external device by the power switching circuit 3 that switches the power supply source to the sensor 8 between the primary battery 4 and the secondary battery 5. A wireless communication unit 6 for transmission and a control device 10 for controlling the sensor 8 and the wireless communication unit 6 are provided. Then, the power supply switching circuit 3 switches the power supply source to the primary battery 4 when the voltage of the secondary battery 5 becomes lower than the preset first reference voltage when the power supply source is the secondary battery 5. .. Further, the control device 10 notifies that the operation of the secondary battery 5 is unstable when the voltage of the secondary battery 5 becomes lower than the first reference voltage.
- the control device 10 notifies that the operation of the secondary battery 5 is unstable when the voltage of the secondary battery 5 becomes lower than the first reference voltage. .. Therefore, it can be seen that the operation of the secondary battery 5 charged by the energy harvesting is unstable. In addition, it is possible to grasp whether the sensor device 100 is installed in the optimum environment for energy harvesting.
- the voltage of the primary battery 4 is lower than the preset second reference voltage. This is to notify that the next battery 5 needs to be replaced.
- the control device 10 of the secondary battery 5 It notifies that replacement is necessary. Therefore, even if it becomes impossible to operate the sensor device 100 with the primary battery 4, if the sensor device 100 can be operated with the secondary battery 5, it is notified that the primary battery 4 needs to be replaced. Can be done. Further, since the timing for replacing the primary battery 4 is known and the primary battery 4 can be replaced at an appropriate timing, the number of replacements of the primary battery 4 can be reduced.
- Embodiment 2 Hereinafter, the second embodiment will be described, but the description of the parts overlapping with the first embodiment will be omitted, and the same parts or the corresponding parts as those of the first embodiment will be designated by the same reference numerals.
- FIG. 4 is a diagram showing a control flow of the sensor device 100 according to the second embodiment.
- FIG. 5 is a diagram showing a control flow according to a first modification of the sensor device 100 according to the second embodiment.
- FIG. 6 is a diagram showing a control flow according to a second modification of the sensor device 100 according to the second embodiment.
- FIG. 7 is a diagram showing a control flow according to a third modification of the sensor device 100 according to the second embodiment.
- the power supply source to the power supply IC 9 is the secondary battery 5.
- Step S201 The power supply switching circuit 3 determines whether or not the voltage of the secondary battery 5 is equal to or higher than a preset first reference voltage.
- the process proceeds to step S210.
- the power supply switching circuit 3 determines that the voltage of the secondary battery 5 is not equal to or higher than the first reference voltage (NO)
- the process proceeds to step S202.
- the first reference voltage is a value determined based on the voltage required for the control device 10 to perform stable sensing using the sensor 8.
- Step S202 The power supply switching circuit 3 determines whether or not the voltage of the primary battery 4 is less than a preset second reference voltage.
- the process proceeds to step S211.
- the power supply switching circuit 3 determines that the voltage of the primary battery 4 is not less than the second reference voltage (NO)
- the process proceeds to step S203.
- the second reference voltage is a value determined based on the voltage required for the control device 10 to perform stable sensing using the sensor 8.
- Step S203 The power switching circuit 3 switches the power supply source to the power supply IC 9 from the secondary battery 5 to the primary battery 4.
- the power supply switching circuit 3 is any one of step S204A shown in FIG. 4, step S204B shown in FIG. 5, step S204C shown in FIG. 6, and step S204D shown in FIG. Perform processing.
- Step S204A The power supply switching circuit 3 determines whether or not the number of times of switching to the primary battery 4 in the preset period is equal to or more than the preset reference number of times.
- the process proceeds to step S205.
- the reference number of times is a value for determining whether or not good power generation is performed by the energy harvesting module 20, that is, whether or not the power generation condition by the energy harvesting module 20 is satisfied.
- Step S204B The power switching circuit 3 determines whether or not the switching to the primary battery 4 has been performed within a preset period.
- the process proceeds to step S205.
- the preset period is a value for determining whether or not good power generation is being performed by the energy harvesting module 20, that is, whether or not the power generation condition of the energy harvesting module 20 is satisfied.
- Step S204C The power supply switching circuit 3 determines whether or not the amount of voltage drop of the primary battery 4 in the preset period is equal to or greater than the preset reference voltage drop amount.
- the process proceeds to step S205.
- the reference voltage drop amount is a value for determining whether or not good power generation is being performed by the energy harvesting module 20, that is, whether or not the power generation condition of the energy harvesting module 20 is satisfied.
- Step S204D The power supply switching circuit 3 determines whether or not the total time of switching to the primary battery 4 in the preset period has elapsed more than the preset time.
- the process proceeds to step S205.
- the preset period and time are values for determining whether or not good power generation is being performed by the energy harvesting module 20, that is, whether or not the power generation condition of the energy harvesting module 20 is satisfied.
- Step S205 The control device 10 notifies an external device via the notification unit 7 or the wireless communication unit 6 that the operation of the secondary battery 5 is unstable.
- the content of the notification is, for example, "The primary battery is being used because the operation of the secondary battery is unstable."
- both the notification unit 7 and the external device may be configured to notify the above contents.
- Step S206 The power supply switching circuit 3 determines whether or not the voltage of the primary battery 4 is less than a preset second reference voltage. When the power switching circuit 3 determines that the voltage of the primary battery 4 is less than the second reference voltage (YES), the process proceeds to step S208. On the other hand, when the power supply switching circuit 3 determines that the voltage of the primary battery 4 is not less than the second reference voltage (NO), the process proceeds to step S207.
- Step S207 The power supply switching circuit 3 determines whether or not the voltage of the secondary battery 5 is equal to or higher than a preset third reference voltage.
- the process proceeds to step S209.
- the power supply switching circuit 3 determines that the voltage of the secondary battery 5 is not equal to or higher than the third reference voltage (NO)
- the process returns to any of steps S204A to S204D.
- the third reference voltage and the first reference voltage may be the same value or different values, but by setting the third reference voltage to a value larger than the first reference voltage, the power supply source to the power supply IC9 Can be suppressed from being frequently switched between the primary battery 4 and the secondary battery 5.
- Step S208 The power switching circuit 3 sets the primary battery voltage drop flag to ON. After that, the SETET process is performed and the initial state is reached. The primary battery voltage drop flag is set to OFF by default. Further, the information of the primary battery voltage drop flag is stored in the non-volatile semiconductor memory of the storage device 11.
- Step S209 The power supply switching circuit 3 switches the power supply source to the power supply IC 9 from the primary battery 4 to the secondary battery 5.
- Step S210 The control device 10 determines whether or not the primary battery voltage drop flag is set to ON. When the control device 10 determines that the primary battery voltage drop flag is set to ON (YES), the process proceeds to step S211. On the other hand, when the control device 10 determines that the primary battery voltage drop flag is set to OFF (NO), the process returns to the process of step S201.
- Step S211 The control device 10 notifies an external device via the notification unit 7 or the wireless communication unit 6 that the primary battery 4 needs to be replaced.
- the content of the notification is, for example, "Please replace the primary battery because the battery is dead.”
- both the notification unit 7 and the external device may be configured to notify the above contents.
- the primary battery voltage drop flag is set to OFF.
- the control device 10 presets the number of times the power supply source is switched to the primary battery 4 in a preset period after the power supply source is switched to the primary battery 4. Determine if it is greater than or equal to the specified number of times. Then, when the control device 10 determines that the number of times the primary battery 4 has been switched to the primary battery 4 during the period is equal to or greater than the reference number of times, the control device 10 notifies that the operation of the secondary battery 5 is unstable.
- the control device 10 determines that the switching to the primary battery 4 has been performed within the period, the control device 10 notifies that the operation of the secondary battery 5 is unstable.
- the control device 10 in the sensor device 100 according to the second embodiment, after the power supply source is switched to the primary battery 4, the voltage drop amount of the primary battery 4 in a preset period is preset. Determine if it is greater than or equal to the reference voltage drop. Then, when the control device 10 determines that the voltage drop amount of the primary battery 4 during the period is equal to or greater than the reference voltage drop amount, the control device 10 notifies that the operation of the secondary battery 5 is unstable.
- the control device 10 is the total time during which the power supply source is switched to the primary battery 4 and then switched to the primary battery 4 in a preset period. However, it is determined whether or not a preset time or more has elapsed. Then, the control device 10 notifies that the operation of the secondary battery 5 is unstable when it is determined that the total time of switching to the primary battery 4 in the above period has passed the said time or more. is there.
- the operation of the secondary battery 5 of the control device 10 is unstable when the above conditions are satisfied after the power supply source is switched to the primary battery 4. Notify that it is. Therefore, although it is not actually unstable, it is necessary to avoid a situation in which the operation of the secondary battery 5 is notified that the operation is unstable even if the power supply source is switched to the primary battery 4 for a moment. Can be done. Then, it is possible to more accurately grasp whether or not the sensor device 100 is installed in the optimum environment for energy harvesting.
- Embodiment 3 Hereinafter, the third embodiment will be described, but the description of the parts overlapping with the first embodiment will be omitted, and the same parts or the corresponding parts as those in the first embodiment will be designated by the same reference numerals.
- FIG. 8 is a diagram showing a control flow of the sensor device 100 according to the third embodiment.
- the details of the control of the sensor device 100 according to the third embodiment will be described with reference to FIG.
- the power supply source to the power supply IC 9 is the secondary battery 5.
- Step S301 The power supply switching circuit 3 determines whether or not the voltage of the secondary battery 5 is equal to or higher than a preset first reference voltage.
- the process proceeds to step S310.
- the power supply switching circuit 3 determines that the voltage of the secondary battery 5 is not equal to or higher than the first reference voltage (NO)
- the process proceeds to step S302.
- the first reference voltage is a value determined based on the voltage required for the control device 10 to perform stable sensing using the sensor 8.
- Step S302 The power supply switching circuit 3 determines whether or not the voltage of the primary battery 4 is less than a preset second reference voltage.
- the process proceeds to step S311.
- the power supply switching circuit 3 determines that the voltage of the primary battery 4 is not less than the second reference voltage (NO)
- the process proceeds to step S303.
- the second reference voltage is a value determined based on the voltage required for the control device 10 to perform stable sensing using the sensor 8.
- Step S303 The power switching circuit 3 switches the power supply source to the power supply IC 9 from the secondary battery 5 to the primary battery 4.
- Step S304 The control device 10 notifies an external device via the notification unit 7 or the wireless communication unit 6 that the operation of the secondary battery 5 is unstable.
- the content of the notification is, for example, "The primary battery is being used because the operation of the secondary battery is unstable."
- both the notification unit 7 and the external device may be configured to notify the above contents.
- Step S305 The control device 10 causes an external device to notify the remaining capacity of the primary battery 4 via the notification unit 7 or the wireless communication unit 6.
- the content of the notification is, for example, "The remaining capacity of the primary battery is 70% remaining.”
- the remaining capacity of the primary battery 4 is calculated based on, for example, the voltage of the primary battery 4. Further, both the notification unit 7 and the external device may be configured to notify the above contents.
- Step S306 The power supply switching circuit 3 determines whether or not the voltage of the primary battery 4 is less than a preset second reference voltage. When the power switching circuit 3 determines that the voltage of the primary battery 4 is less than the second reference voltage (YES), the process proceeds to step S307. On the other hand, when the power supply switching circuit 3 determines that the voltage of the primary battery 4 is not less than the second reference voltage (NO), the process proceeds to step S308.
- Step S307 The power switching circuit 3 sets the primary battery voltage drop flag to ON. After that, the SETET process is performed and the initial state is reached. The primary battery voltage drop flag is set to OFF by default. Further, the information of the primary battery voltage drop flag is stored in the non-volatile semiconductor memory of the storage device 11.
- Step S308 The power supply switching circuit 3 determines whether or not the voltage of the secondary battery 5 is equal to or higher than a preset third reference voltage.
- the process proceeds to step S309.
- the power supply switching circuit 3 determines that the voltage of the secondary battery 5 is not equal to or higher than the third reference voltage (NO)
- the process returns to step S305.
- the third reference voltage and the first reference voltage may be the same value or different values, but by setting the third reference voltage to a value larger than the first reference voltage, the power supply source to the power supply IC9 Can be suppressed from being frequently switched between the primary battery 4 and the secondary battery 5.
- Step S309 The power supply switching circuit 3 switches the power supply source to the power supply IC 9 from the primary battery 4 to the secondary battery 5.
- Step S310 The control device 10 determines whether or not the primary battery voltage drop flag is set to ON. When the control device 10 determines that the primary battery voltage drop flag is set to ON (YES), the process proceeds to step S311. On the other hand, when the control device 10 determines that the primary battery voltage drop flag is set to OFF (NO), the process returns to the process of step S301.
- Step S311 The control device 10 notifies an external device via the notification unit 7 or the wireless communication unit 6 that the primary battery 4 needs to be replaced.
- the content of the notification is, for example, "Please replace the primary battery because the battery is dead.”
- both the notification unit 7 and the external device may be configured to notify the above contents.
- the primary battery voltage drop flag is set to OFF.
- the power supply switching circuit 3 calculates the remaining capacity of the primary battery 4 based on the voltage of the primary battery 4, and the control device 10 calculates the remaining capacity of the primary battery 4. It informs you.
- the control device 10 notifies the remaining capacity of the primary battery 4. Therefore, it is possible to prepare for replacement of the primary battery 4 by looking at the remaining capacity of the primary battery 4, or if the capacity of the primary battery 4 decreases rapidly, the energy harvesting module 20 is not performing good power generation. Can be grasped.
- Embodiment 4 Hereinafter, the fourth embodiment will be described, but the description of the parts overlapping with the first embodiment will be omitted, and the same parts as those of the first embodiment or the corresponding parts will be designated by the same reference numerals.
- FIG. 9 is a diagram showing a control flow of the sensor device 100 according to the fourth embodiment.
- the details of the control of the sensor device 100 according to the fourth embodiment will be described with reference to FIG.
- the power supply source to the power supply IC 9 is the secondary battery 5.
- Step S401 The power supply switching circuit 3 determines whether or not the voltage of the secondary battery 5 is equal to or higher than a preset first reference voltage.
- the process proceeds to step S411.
- the power supply switching circuit 3 determines that the voltage of the secondary battery 5 is not equal to or higher than the first reference voltage (NO)
- the process proceeds to step S402.
- the first reference voltage is a value determined based on the voltage required for the control device 10 to perform stable sensing using the sensor 8.
- Step S402 The power supply switching circuit 3 determines whether or not the voltage of the primary battery 4 is less than a preset second reference voltage.
- the process proceeds to step S412.
- the power supply switching circuit 3 determines that the voltage of the primary battery 4 is not less than the second reference voltage (NO)
- the process proceeds to step S403.
- the second reference voltage is a value determined based on the voltage required for the control device 10 to perform stable sensing using the sensor 8.
- Step S403 The power switching circuit 3 switches the power supply source to the power supply IC 9 from the secondary battery 5 to the primary battery 4.
- Step S404 The control device 10 notifies an external device via the notification unit 7 or the wireless communication unit 6 that the operation of the secondary battery 5 is unstable.
- the content of the notification is, for example, "The primary battery is being used because the operation of the secondary battery is unstable."
- both the notification unit 7 and the external device may be configured to notify the above contents.
- the power switching circuit 3 calculates the operating time of the remaining sensor device 100. For example, the power supply switching circuit 3 measures the current value flowing from the primary battery 4 to the power supply switching circuit 3 when the power supply source to the power supply IC 9 is the primary battery 4. Next, the power supply switching circuit 3 calculates the measured power consumption of the primary battery 4. Next, the power supply switching circuit 3 obtains the time during which the primary battery 4 is switched to in a preset period, and calculates the power consumption of the primary battery 4 in the period. Then, the power supply switching circuit 3 calculates the operable time of the sensor device 100 based on the calculated power consumption and the remaining capacity of the primary battery 4 calculated based on, for example, the voltage of the primary battery 4.
- the operating time of the sensor device 100 may be calculated based on the design value of the sensor device 100. Specifically, based on the power consumption obtained from the design value of the sensor device 100 and the usage ratio of the primary battery 4 and the secondary battery 5 when the sensor device 100 is used under the assumed conditions. The operable time of the sensor device 100 is calculated.
- Step S406 The control device 10 notifies an external device of the operable time of the sensor device 100 via the notification unit 7 or the wireless communication unit 6.
- the content of the notification is, for example, "The operating time of the sensor device is 5 hours left.”
- the external device may be notified to that effect via the notification unit 7 or the wireless communication unit 6.
- both the notification unit 7 and the external device may be configured to notify the above contents.
- Step S407 The power supply switching circuit 3 determines whether or not the voltage of the primary battery 4 is less than a preset second reference voltage. When the power switching circuit 3 determines that the voltage of the primary battery 4 is less than the second reference voltage (YES), the process proceeds to step S408. On the other hand, when the power supply switching circuit 3 determines that the voltage of the primary battery 4 is not less than the second reference voltage (NO), the process proceeds to step S409.
- Step S408 The power switching circuit 3 sets the primary battery voltage drop flag to ON. After that, the SETET process is performed and the initial state is reached. The primary battery voltage drop flag is set to OFF by default. Further, the information of the primary battery voltage drop flag is stored in the non-volatile semiconductor memory of the storage device 11.
- Step S409 The power supply switching circuit 3 determines whether or not the voltage of the secondary battery 5 is equal to or higher than a preset third reference voltage.
- the process proceeds to step S410.
- the power supply switching circuit 3 determines that the voltage of the secondary battery 5 is not equal to or higher than the third reference voltage (NO)
- the process returns to the process of step S405.
- the third reference voltage and the first reference voltage may be the same value or different values, but by setting the third reference voltage to a value larger than the first reference voltage, the power supply source to the power supply IC9 Can be suppressed from being frequently switched between the primary battery 4 and the secondary battery 5.
- Step S410 The power supply switching circuit 3 switches the power supply source to the power supply IC 9 from the primary battery 4 to the secondary battery 5.
- Step S411 The control device 10 determines whether or not the primary battery voltage drop flag is set to ON. When the control device 10 determines that the primary battery voltage drop flag is set to ON (YES), the process proceeds to step S412. On the other hand, when the control device 10 determines that the primary battery voltage drop flag is set to OFF (NO), the process proceeds to step S413.
- Step S412 The control device 10 notifies an external device via the notification unit 7 or the wireless communication unit 6 that the primary battery 4 needs to be replaced.
- the content of the notification is, for example, "Please replace the primary battery because the battery is dead.”
- both the notification unit 7 and the external device may be configured to notify the above contents.
- the primary battery voltage drop flag is set to OFF.
- Step S413 The power switching circuit 3 calculates the operating time of the remaining sensor device 100. For example, the power supply switching circuit 3 measures the current value flowing from the secondary battery 5 to the power supply switching circuit 3 when the power supply source to the power supply IC 9 is the secondary battery 5. Next, the power supply switching circuit 3 calculates the power consumption of the secondary battery 5 using the measured current value of the secondary battery 5. Next, since the power switching circuit 3 has different self-consumption power between the primary battery 4 and the secondary battery 5, the calculated power consumption of the secondary battery 5 is corrected by the difference in self-consumption power to make the primary battery. Calculate the power consumption of 4.
- the power supply switching circuit 3 obtains the time during which the secondary battery 5 is switched in a preset period, and calculates the power consumption of the secondary battery 5 in the period. Then, the power supply switching circuit 3 calculates the operable time of the sensor device 100 based on the calculated power consumption and the remaining capacity of the primary battery 4.
- the operating time of the sensor device 100 may be calculated based on the design value of the sensor device 100. Specifically, it is based on the power consumption obtained from the design value of the sensor device 100 and the usage ratio of the primary battery 4 and the secondary battery 5 when the sensor device 100 is used under the assumed conditions. , The operable time of the sensor device 100 is calculated.
- Step S414 The control device 10 notifies an external device of the operable time of the sensor device 100 via the notification unit 7 or the wireless communication unit 6.
- the content of the notification is, for example, "The operating time of the sensor device is 5 hours left.”
- the external device may be notified to that effect via the notification unit 7 or the wireless communication unit 6.
- both the notification unit 7 and the external device may be configured to notify the above contents.
- the power switching circuit 3 determines the electric energy consumption of the primary battery 4 in a preset period based on the current of the primary battery 4 or the current of the secondary battery 5.
- the operable time is calculated based on the calculated power consumption and the remaining capacity of the primary battery 4. Then, the control device 10 notifies the calculated operable time.
- the control device 10 notifies the calculated operable time. Therefore, it is possible to prepare for the replacement of the primary battery 4 by looking at the operable time, or if the operable time is shorter than the expected time, it means that the energy harvesting module 20 is not generating good power. It can be grasped.
- the sensor device 100 described in the first to fourth embodiments includes a primary battery 4 and a secondary battery 5 as a power supply source to the power supply IC 9, and is configured to switch between them depending on the situation. Not done.
- the sensor device 100 may be provided with two secondary batteries 5 as power supply sources for the power supply IC 9, and may be configured to switch between them depending on the situation.
- two secondary batteries 5 When two secondary batteries 5 are provided, they may be of the same type of energy source or may be of different types of energy sources.
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Abstract
Description
図1は、本実施の形態1に係るセンサ装置100の構成を示す図である。
本実施の形態1に係るセンサ装置100は、図1に示すように、センサ装置用基板2を備えている。センサ装置用基板2には、一次電池4と、二次電池5と、エナジーハーベストモジュール20と、電源切替回路3と、電源IC9と、制御装置10と、記憶装置11と、無線通信部6と、報知部7と、センサ8と、が実装されている。なお、本実施の形態1では、センサ装置100が、無線通信部6および報知部7の両方を備えているが、それに限定されず、どちらか一方のみを備えた構成でもよい。
環境発電部21は、図2に示すようなエネルギー源を利用したものが考えられる。具体的には、環境発電部21は、Aに示すエネルギー源が太陽光または白色LED照明である可視光発電ユニット、Bに示すエネルギー源が振動である振動発電ユニット、Cに示すエネルギー源が圧力である圧電体発電ユニット、または、Dに示すエネルギー源が温度差である温度差発電ユニットである。
次に、本実施の形態1に係るセンサ装置100の制御の詳細について、図3を用いて説明する。
電源切替回路3は、二次電池5の電圧が、予め設定された第一基準電圧以上であるかどうかを判定する。電源切替回路3が、二次電池5の電圧が第一基準電圧以上であると判定した場合(YES)、ステップS109の処理に進む。一方、電源切替回路3が、二次電池5の電圧が第一基準電圧以上ではないと判定した場合(NO)、ステップS102の処理に進む。ここで、第一基準電圧は、制御装置10がセンサ8を用いて安定的なセンシングを行うために必要な電圧に基づいて決定される値である。
電源切替回路3は、一次電池4の電圧が、予め設定された第二基準電圧未満であるかどうかを判定する。電源切替回路3が、一次電池4の電圧が第二基準電圧未満であると判定した場合(YES)、ステップS110の処理に進む。一方、電源切替回路3が、一次電池4の電圧が第二基準電圧未満ではないと判定した場合(NO)、ステップS103の処理に進む。ここで、第二基準電圧は、制御装置10がセンサ8を用いて安定的なセンシングを行うために必要な電圧に基づいて決定される値である。
電源切替回路3は、電源IC9への電力供給源を二次電池5から一次電池4に切り替える。
制御装置10は、報知部7または無線通信部6を介して外部機器に、二次電池5の動作が不安定である旨を報知させる。報知内容としては、例えば「二次電池の動作が不安定のため一次電池使用中です。」などである。なお、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
電源切替回路3は、一次電池4の電圧が、予め設定された第二基準電圧未満であるかどうかを判定する。電源切替回路3が、一次電池4の電圧が第二基準電圧未満であると判定した場合(YES)、ステップS106の処理に進む。一方、電源切替回路3が、一次電池4の電圧が第二基準電圧未満ではないと判定した場合(NO)、ステップS107の処理に進む。
電源切替回路3は、一次電池電圧低下フラグをONに設定する。その後、RESET処理が行われ、初期状態になる。なお、一次電池電圧低下フラグは、初期設定ではOFFに設定されている。また、一次電池電圧低下フラグの情報は、記憶装置11の不揮発性の半導体メモリに記憶される。
電源切替回路3は、二次電池5の電圧が、予め設定された第三基準電圧以上であるかどうかを判定する。電源切替回路3が、二次電池5の電圧が第三基準電圧以上であると判定した場合(YES)、ステップS108の処理に進む。一方、電源切替回路3が、二次電池5の電圧が第三基準電圧以上ではないと判定した場合(NO)、ステップS105の処理に戻る。ここで、第三基準電圧と第一基準電圧とは同じ値でもよいし、異なる値でもよいが、第三基準電圧を第一基準電圧より大きい値とすることで、電源IC9への電力供給源が一次電池4と二次電池5とで頻繁に切り替えられるのを抑制することができる。
電源切替回路3は、電源IC9への電力供給源を一次電池4から二次電池5に切り替える。
制御装置10は、一次電池電圧低下フラグがONに設定されているかどうかを判定する。制御装置10が、一次電池電圧低下フラグがONに設定されていると判定した場合(YES)、ステップS110の処理に進む。一方、制御装置10が、一次電池電圧低下フラグがOFFに設定されていると判定した場合(NO)、ステップS101の処理に戻る。
制御装置10は、報知部7または無線通信部6を介して外部機器に、一次電池4の交換が必要である旨を報知させる。報知内容としては、例えば「電池切れのため一次電池を交換してください。」などである。なお、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
以下、本実施の形態2について説明するが、実施の形態1と重複するものについては説明を省略し、実施の形態1と同じ部分または相当する部分には同じ符号を付す。
以下、本実施の形態2に係るセンサ装置100の制御の詳細について、図4~図7を用いて説明する。
電源切替回路3は、二次電池5の電圧が、予め設定された第一基準電圧以上であるかどうかを判定する。電源切替回路3が、二次電池5の電圧が第一基準電圧以上であると判定した場合(YES)、ステップS210の処理に進む。一方、電源切替回路3が、二次電池5の電圧が第一基準電圧以上ではないと判定した場合(NO)、ステップS202の処理に進む。ここで、第一基準電圧は、制御装置10がセンサ8を用いて安定的なセンシングを行うために必要な電圧に基づいて決定される値である。
電源切替回路3は、一次電池4の電圧が、予め設定された第二基準電圧未満であるかどうかを判定する。電源切替回路3が、一次電池4の電圧が第二基準電圧未満であると判定した場合(YES)、ステップS211の処理に進む。一方、電源切替回路3が、一次電池4の電圧が第二基準電圧未満ではないと判定した場合(NO)、ステップS203の処理に進む。ここで、第二基準電圧は、制御装置10がセンサ8を用いて安定的なセンシングを行うために必要な電圧に基づいて決定される値である。
電源切替回路3は、電源IC9への電力供給源を二次電池5から一次電池4に切り替える。なお、電源切替回路3は、ステップS203の処理の後、図4に示すステップS204A、図5に示すステップS204B、図6に示すステップS204C、および、図7に示すステップS204Dのうち、いずれかの処理を行う。
電源切替回路3は、予め設定された期間における一次電池4への切替回数が、予め設定された基準回数以上であるかどうかを判定する。電源切替回路3が、予め設定された期間における一次電池4への切替回数が、基準回数以上であると判定した場合(YES)、ステップS205の処理に進む。一方、電源切替回路3が、予め設定された期間における一次電池4への切替回数が、基準回数以上ではないと判定した場合(NO)、ステップS206の処理に進む。ここで、基準回数は、エナジーハーベストモジュール20によって良好な発電が行われているかどうか、つまりエナジーハーベストモジュール20による発電条件を満たすかどうかを判定するための値である。
電源切替回路3は、一次電池4への切り替えが予め設定された期間内に行われたかどうかを判定する。電源切替回路3が、一次電池4への切り替えが予め設定された期間内に行われたと判定した場合(YES)、ステップS205の処理に進む。一方、電源切替回路3が、一次電池4への切り替えが予め設定された期間内に行われていないと判定した場合(NO)、ステップS206の処理に進む。ここで、予め設定された期間は、エナジーハーベストモジュール20によって良好な発電が行われているかどうか、つまりエナジーハーベストモジュール20による発電条件を満たすかどうかを判定するための値である。
電源切替回路3は、予め設定された期間における一次電池4の電圧低下量が、予め設定された基準電圧低下量以上であるかどうかを判定する。電源切替回路3が、予め設定された期間における一次電池4の電圧低下量が基準電圧低下量以上であると判定した場合(YES)、ステップS205の処理に進む。一方、電源切替回路3が、予め設定された期間における一次電池4の電圧低下量が基準電圧低下量以上ではないと判定した場合(NO)、ステップS206の処理に進む。ここで、基準電圧低下量は、エナジーハーベストモジュール20によって良好な発電が行われているかどうか、つまりエナジーハーベストモジュール20による発電条件を満たすかどうかを判定するための値である。
電源切替回路3は、予め設定された期間における、一次電池4へ切り替えられている時間の合計が、予め設定された時間以上経過したかどうかを判定する。電源切替回路3が、予め設定された期間における、一次電池4へ切り替えられている時間の合計が、予め設定された時間以上経過したと判定した場合(YES)、ステップS205の処理に進む。一方、電源切替回路3が、予め設定された期間における、一次電池4へ切り替えられている時間の合計が、予め設定された時間以上経過していないと判定した場合(NO)、ステップS206の処理に進む。ここで、予め設定された期間および時間は、エナジーハーベストモジュール20によって良好な発電が行われているかどうか、つまりエナジーハーベストモジュール20による発電条件を満たすかどうかを判定するための値である。
制御装置10は、報知部7または無線通信部6を介して外部機器に、二次電池5の動作が不安定である旨を報知させる。報知内容としては、例えば「二次電池の動作が不安定のため一次電池使用中です。」などである。なお、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
電源切替回路3は、一次電池4の電圧が、予め設定された第二基準電圧未満であるかどうかを判定する。電源切替回路3が、一次電池4の電圧が第二基準電圧未満であると判定した場合(YES)、ステップS208の処理に進む。一方、電源切替回路3が、一次電池4の電圧が第二基準電圧未満ではないと判定した場合(NO)、ステップS207の処理に進む。
電源切替回路3は、二次電池5の電圧が、予め設定された第三基準電圧以上であるかどうかを判定する。電源切替回路3が、二次電池5の電圧が第三基準電圧以上であると判定した場合(YES)、ステップS209の処理に進む。一方、電源切替回路3が、二次電池5の電圧が第三基準電圧以上ではないと判定した場合(NO)、ステップS204A~S204Dのうちのいずれかの処理に戻る。ここで、第三基準電圧と第一基準電圧とは同じ値でもよいし、異なる値でもよいが、第三基準電圧を第一基準電圧より大きい値とすることで、電源IC9への電力供給源が一次電池4と二次電池5とで頻繁に切り替えられるのを抑制することができる。
電源切替回路3は、一次電池電圧低下フラグをONに設定する。その後、RESET処理が行われ、初期状態になる。なお、一次電池電圧低下フラグは、初期設定ではOFFに設定されている。また、一次電池電圧低下フラグの情報は、記憶装置11の不揮発性の半導体メモリに記憶される。
電源切替回路3は、電源IC9への電力供給源を一次電池4から二次電池5に切り替える。
制御装置10は、一次電池電圧低下フラグがONに設定されているかどうかを判定する。制御装置10が、一次電池電圧低下フラグがONに設定されていると判定した場合(YES)、ステップS211の処理に進む。一方、制御装置10が、一次電池電圧低下フラグがOFFに設定されていると判定した場合(NO)、ステップS201の処理に戻る。
制御装置10は、報知部7または無線通信部6を介して外部機器に、一次電池4の交換が必要である旨を報知させる。報知内容としては、例えば「電池切れのため一次電池を交換してください。」などである。なお、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
以下、本実施の形態3について説明するが、実施の形態1と重複するものについては説明を省略し、実施の形態1と同じ部分または相当する部分には同じ符号を付す。
以下、本実施の形態3に係るセンサ装置100の制御の詳細について、図8を用いて説明する。
電源切替回路3は、二次電池5の電圧が、予め設定された第一基準電圧以上であるかどうかを判定する。電源切替回路3が、二次電池5の電圧が第一基準電圧以上であると判定した場合(YES)、ステップS310の処理に進む。一方、電源切替回路3が、二次電池5の電圧が第一基準電圧以上ではないと判定した場合(NO)、ステップS302の処理に進む。ここで、第一基準電圧は、制御装置10がセンサ8を用いて安定的なセンシングを行うために必要な電圧に基づいて決定される値である。
電源切替回路3は、一次電池4の電圧が、予め設定された第二基準電圧未満であるかどうかを判定する。電源切替回路3が、一次電池4の電圧が第二基準電圧未満であると判定した場合(YES)、ステップS311の処理に進む。一方、電源切替回路3が、一次電池4の電圧が第二基準電圧未満ではないと判定した場合(NO)、ステップS303の処理に進む。ここで、第二基準電圧は、制御装置10がセンサ8を用いて安定的なセンシングを行うために必要な電圧に基づいて決定される値である。
電源切替回路3は、電源IC9への電力供給源を二次電池5から一次電池4に切り替える。
制御装置10は、報知部7または無線通信部6を介して外部機器に、二次電池5の動作が不安定である旨を報知させる。報知内容としては、例えば「二次電池の動作が不安定のため一次電池使用中です。」などである。なお、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
制御装置10は、報知部7または無線通信部6を介して外部機器に、一次電池4の残容量を報知させる。報知内容としては、例えば「一次電池の残容量は残り70%です。」などである。なお、一次電池4の残容量は、例えば一次電池4の電圧に基づいて算出される。また、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
電源切替回路3は、一次電池4の電圧が、予め設定された第二基準電圧未満であるかどうかを判定する。電源切替回路3が、一次電池4の電圧が第二基準電圧未満であると判定した場合(YES)、ステップS307の処理に進む。一方、電源切替回路3が、一次電池4の電圧が第二基準電圧未満ではないと判定した場合(NO)、ステップS308の処理に進む。
電源切替回路3は、一次電池電圧低下フラグをONに設定する。その後、RESET処理が行われ、初期状態になる。なお、一次電池電圧低下フラグは、初期設定ではOFFに設定されている。また、一次電池電圧低下フラグの情報は、記憶装置11の不揮発性の半導体メモリに記憶される。
電源切替回路3は、二次電池5の電圧が、予め設定された第三基準電圧以上であるかどうかを判定する。電源切替回路3が、二次電池5の電圧が第三基準電圧以上であると判定した場合(YES)、ステップS309の処理に進む。一方、電源切替回路3が、二次電池5の電圧が第三基準電圧以上ではないと判定した場合(NO)、ステップS305の処理に戻る。ここで、第三基準電圧と第一基準電圧とは同じ値でもよいし、異なる値でもよいが、第三基準電圧を第一基準電圧より大きい値とすることで、電源IC9への電力供給源が一次電池4と二次電池5とで頻繁に切り替えられるのを抑制することができる。
電源切替回路3は、電源IC9への電力供給源を一次電池4から二次電池5に切り替える。
制御装置10は、一次電池電圧低下フラグがONに設定されているかどうかを判定する。制御装置10が、一次電池電圧低下フラグがONに設定されていると判定した場合(YES)、ステップS311の処理に進む。一方、制御装置10が、一次電池電圧低下フラグがOFFに設定されていると判定した場合(NO)、ステップS301の処理に戻る。
制御装置10は、報知部7または無線通信部6を介して外部機器に、一次電池4の交換が必要である旨を報知させる。報知内容としては、例えば「電池切れのため一次電池を交換してください。」などである。なお、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
以下、本実施の形態4について説明するが、実施の形態1と重複するものについては説明を省略し、実施の形態1と同じ部分または相当する部分には同じ符号を付す。
以下、本実施の形態4に係るセンサ装置100の制御の詳細について、図9を用いて説明する。
電源切替回路3は、二次電池5の電圧が、予め設定された第一基準電圧以上であるかどうかを判定する。電源切替回路3が、二次電池5の電圧が第一基準電圧以上であると判定した場合(YES)、ステップS411の処理に進む。一方、電源切替回路3が、二次電池5の電圧が第一基準電圧以上ではないと判定した場合(NO)、ステップS402の処理に進む。ここで、第一基準電圧は、制御装置10がセンサ8を用いて安定的なセンシングを行うために必要な電圧に基づいて決定される値である。
電源切替回路3は、一次電池4の電圧が、予め設定された第二基準電圧未満であるかどうかを判定する。電源切替回路3が、一次電池4の電圧が第二基準電圧未満であると判定した場合(YES)、ステップS412の処理に進む。一方、電源切替回路3が、一次電池4の電圧が第二基準電圧未満ではないと判定した場合(NO)、ステップS403の処理に進む。ここで、第二基準電圧は、制御装置10がセンサ8を用いて安定的なセンシングを行うために必要な電圧に基づいて決定される値である。
電源切替回路3は、電源IC9への電力供給源を二次電池5から一次電池4に切り替える。
制御装置10は、報知部7または無線通信部6を介して外部機器に、二次電池5の動作が不安定である旨を報知させる。報知内容としては、例えば「二次電池の動作が不安定のため一次電池使用中です。」などである。なお、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
電源切替回路3は、残りのセンサ装置100の動作可能時間の算出を行う。例えば、電源切替回路3は、電源IC9への電力供給源が一次電池4である時の一次電池4から電源切替回路3へ流れる電流値を計測する。次に、電源切替回路3は、計測した一次電池4の消費電力を算出する。次に、電源切替回路3は、予め設定された期間における、一次電池4へ切り替えられている時間を求め、一次電池4の前記期間における消費電力量を算出する。そして、電源切替回路3は、その算出した消費電力量と、例えば一次電池4の電圧に基づいて算出される一次電池4の残容量とに基づいて、センサ装置100の動作可能時間を算出する。なお、センサ装置100の動作可能時間の算出は、センサ装置100の設計値に基づいて行ってもよい。具体的には、センサ装置100の設計値から求められる消費電力、および、想定される条件下でセンサ装置100が使用された場合の一次電池4と二次電池5との使用比率に基づいて、センサ装置100の動作可能時間が算出される。
制御装置10は、報知部7または無線通信部6を介して外部機器に、センサ装置100の動作可能時間を報知させる。報知内容としては、例えば「センサ装置の動作可能時間はあと5時間です。」などである。このとき、算出したセンサ装置100の動作可能時間が、想定される時間よりも短い場合は、センサ装置100がエナジーハーベストに最適な環境に設置されていないと考えられる。そのため、その旨を報知部7または無線通信部6を介して外部機器に報知させるようにしてもよい。なお、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
電源切替回路3は、一次電池4の電圧が、予め設定された第二基準電圧未満であるかどうかを判定する。電源切替回路3が、一次電池4の電圧が第二基準電圧未満であると判定した場合(YES)、ステップS408の処理に進む。一方、電源切替回路3が、一次電池4の電圧が第二基準電圧未満ではないと判定した場合(NO)、ステップS409の処理に進む。
電源切替回路3は、一次電池電圧低下フラグをONに設定する。その後、RESET処理が行われ、初期状態になる。なお、一次電池電圧低下フラグは、初期設定ではOFFに設定されている。また、一次電池電圧低下フラグの情報は、記憶装置11の不揮発性の半導体メモリに記憶される。
電源切替回路3は、二次電池5の電圧が、予め設定された第三基準電圧以上であるかどうかを判定する。電源切替回路3が、二次電池5の電圧が第三基準電圧以上であると判定した場合(YES)、ステップS410の処理に進む。一方、電源切替回路3が、二次電池5の電圧が第三基準電圧以上ではないと判定した場合(NO)、ステップS405の処理に戻る。ここで、第三基準電圧と第一基準電圧とは同じ値でもよいし、異なる値でもよいが、第三基準電圧を第一基準電圧より大きい値とすることで、電源IC9への電力供給源が一次電池4と二次電池5とで頻繁に切り替えられるのを抑制することができる。
電源切替回路3は、電源IC9への電力供給源を一次電池4から二次電池5に切り替える。
制御装置10は、一次電池電圧低下フラグがONに設定されているかどうかを判定する。制御装置10が、一次電池電圧低下フラグがONに設定されていると判定した場合(YES)、ステップS412の処理に進む。一方、制御装置10が、一次電池電圧低下フラグがOFFに設定されていると判定した場合(NO)、ステップS413の処理に進む。
制御装置10は、報知部7または無線通信部6を介して外部機器に、一次電池4の交換が必要である旨を報知させる。報知内容としては、例えば「電池切れのため一次電池を交換してください。」などである。なお、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
電源切替回路3は、残りのセンサ装置100の動作可能時間の算出を行う。例えば、電源切替回路3は、電源IC9への電力供給源が二次電池5である時の二次電池5から電源切替回路3へ流れる電流値を計測する。次に、電源切替回路3は、計測した二次電池5の電流値を用いて二次電池5の消費電力を算出する。次に、電源切替回路3は、一次電池4と二次電池5とでは自己消費電力が異なるため、算出した二次電池5の消費電力に自己消費電力の違いによる補正を入れることで、一次電池4の消費電力を算出する。次に、電源切替回路3は、予め設定された期間における二次電池5に切り替えられている時間を求め、二次電池5の前記期間における消費電力量を算出する。そして、電源切替回路3は、その算出した消費電力量と一次電池4の残容量とに基づいて、センサ装置100の動作可能時間を算出する。なお、センサ装置100の動作可能時間の算出は、センサ装置100の設計値に基づいて行ってもよい。具体的には、センサ装置100の設計値から求められる消費電力、および、想定される条件下でセンサ装置100が使用された場合の一次電池4と二次電池5との使用比率、に基づいて、センサ装置100の動作可能時間が算出される。
制御装置10は、報知部7または無線通信部6を介して外部機器に、センサ装置100の動作可能時間を報知させる。報知内容としては、例えば「センサ装置の動作可能時間はあと5時間です。」などである。このとき、算出したセンサ装置100の動作可能時間が、想定される時間よりも短い場合は、センサ装置100がエナジーハーベストに最適な環境に設置されていないと考えられる。そのため、その旨を報知部7または無線通信部6を介して外部機器に報知させるようにしてもよい。なお、報知部7および外部機器の両方に、上記内容を報知させる構成でもよい。
Claims (9)
- 一次電池と、
エナジーハーベストによって充電される二次電池と、
前記一次電池または前記二次電池からの電力供給に基づいて動作するセンサと、
前記センサへの電力供給源を前記一次電池と前記二次電池とで切り替える電源切替回路と、
情報を報知する報知部と、
前記センサおよび前記報知部を制御する制御装置と、を備え、
前記電源切替回路は、
前記電力供給源が前記二次電池の時に、前記二次電池の電圧が予め設定された第一基準電圧より低くなったら前記電力供給源を前記一次電池に切り替えるものであり、
前記制御装置は、
前記二次電池の電圧が前記第一基準電圧より低くなったら、前記二次電池の動作が不安定である旨を報知させるものである
センサ装置。 - 一次電池と、
エナジーハーベストによって充電される二次電池と、
前記一次電池または前記二次電池からの電力供給に基づいて動作するセンサと、
前記センサへの電力供給源を前記一次電池と前記二次電池とで切り替える電源切替回路と、
無線によって外部機器と通信を行い、該外部機器に報知させる情報を送信する無線通信部と、
前記センサおよび前記無線通信部を制御する制御装置と、を備え、
前記電源切替回路は、
前記電力供給源が前記二次電池の時に、前記二次電池の電圧が予め設定された第一基準電圧より低くなったら前記電力供給源を前記一次電池に切り替えるものであり、
前記制御装置は、
前記二次電池の電圧が前記第一基準電圧より低くなったら、前記二次電池の動作が不安定である旨を報知させるものである
センサ装置。 - 前記制御装置は、
前記電力供給源が前記二次電池の時に、前記一次電池の電圧が予め設定された第二基準電圧より低い場合は、前記二次電池の交換が必要である旨を報知させるものである
請求項1または2に記載のセンサ装置。 - 前記制御装置は、
前記電力供給源が前記一次電池に切り替えられた後、
予め設定された期間における前記一次電池へ切り替えられた回数が、予め設定された基準回数以上であるかどうかを判定し、
前記期間における前記一次電池へ切り替えられた回数が、前記基準回数以上であると判定したら、前記二次電池の動作が不安定である旨を報知させるものである
請求項1または2に記載のセンサ装置。 - 前記制御装置は、
前記電力供給源が前記一次電池に切り替えられた後、
前記一次電池への切り替えが予め設定された期間内に行われたかどうかを判定し、
前記一次電池への切り替えが前記期間内に行われたと判定したら、前記二次電池の動作が不安定である旨を報知させるものである
請求項1または2に記載のセンサ装置。 - 前記制御装置は、
前記電力供給源が前記一次電池に切り替えられた後、
予め設定された期間における前記一次電池の電圧低下量が予め設定された基準電圧低下量以上であるかどうかを判定し、
前記期間における前記一次電池の前記電圧低下量が前記基準電圧低下量以上であると判定したら、前記二次電池の動作が不安定である旨を報知させるものである
請求項1または2に記載のセンサ装置。 - 前記制御装置は、
前記電力供給源が前記一次電池に切り替えられた後、
予め設定された期間における、前記一次電池へ切り替えられている時間の合計が、予め設定された時間以上経過したかどうかを判定し、
前記期間における、前記一次電池へ切り替えられている時間の合計が、前記時間以上経過したと判定したら、前記二次電池の動作が不安定である旨を報知させるものである
請求項1または2に記載のセンサ装置。 - 前記電源切替回路は、前記一次電池の電圧に基づいて前記一次電池の残容量を算出し、
前記制御装置は、前記一次電池の前記残容量を報知させるものである
請求項1~7のいずれか一項に記載のセンサ装置。 - 前記電源切替回路は、
前記一次電池の電流または前記二次電池の電流に基づいて、予め設定された期間における前記一次電池の消費電力量を算出し、算出した前記消費電力量と前記一次電池の残容量とに基づいて、動作可能時間を算出し、
前記制御装置は、算出した前記動作可能時間を報知させるものである
請求項1~8のいずれか一項に記載のセンサ装置。
Priority Applications (4)
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PCT/JP2019/016162 WO2020213034A1 (ja) | 2019-04-15 | 2019-04-15 | センサ装置 |
GB2113062.0A GB2596441A (en) | 2019-04-15 | 2019-04-15 | Sensor device |
US17/430,189 US20220158474A1 (en) | 2019-04-15 | 2019-04-15 | Sensor device |
JP2021514673A JPWO2020213034A1 (ja) | 2019-04-15 | 2019-04-15 | センサ装置 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5835366A (en) * | 1997-06-24 | 1998-11-10 | Telxon Corporation | Secondary battery boost circuit |
JP2010142371A (ja) * | 2008-12-17 | 2010-07-01 | Omron Healthcare Co Ltd | 電子血圧計 |
JP2016189044A (ja) * | 2015-03-30 | 2016-11-04 | セイコーエプソン株式会社 | 表示装置、及び、表示装置の制御方法 |
WO2018168848A1 (ja) * | 2017-03-13 | 2018-09-20 | 株式会社フジクラ | センサ装置およびセンサネットワークシステム |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003153059A (ja) * | 2001-11-14 | 2003-05-23 | Konica Corp | カメラ |
US20090009475A1 (en) * | 2007-07-06 | 2009-01-08 | Ocz Technology Group, Inc. | Wireless computer mouse with battery switching capability |
JP2015050490A (ja) * | 2013-08-30 | 2015-03-16 | 日本精機株式会社 | 携帯型無線装置 |
DE112014006832B4 (de) * | 2014-08-21 | 2018-05-17 | Mitsubishi Electric Corporation | Spannungsversorgungsvorrichtung für eine Absolutpositionserfassungsvorrichtung |
GB201419533D0 (en) * | 2014-11-03 | 2014-12-17 | Bytec Healthcare Ltd | Battery system for a mobile workstation |
WO2016157721A1 (ja) * | 2015-04-03 | 2016-10-06 | パナソニックIpマネジメント株式会社 | 故障検出装置 |
EP3416273B1 (en) * | 2016-03-25 | 2022-01-26 | Huawei Technologies Co., Ltd. | Power supply circuit for load, and terminal |
JP6797656B2 (ja) * | 2016-12-09 | 2020-12-09 | 矢崎総業株式会社 | 差電圧測定装置 |
WO2018129516A2 (en) * | 2017-01-09 | 2018-07-12 | Milwaukee Electric Tool Corporation | Battery pack |
NL2019730B1 (en) * | 2017-10-13 | 2019-04-23 | Nowi Energy B V | A hybrid electrical power supply control system for providing electrical energy to a load, as well as a corresponding method and a sensor comprising such control system. |
US10938074B2 (en) * | 2017-10-17 | 2021-03-02 | Getac Technology Corporation | Electronic device, discharging method for the same, and charging method for the same |
US10778013B2 (en) * | 2018-01-10 | 2020-09-15 | Microsoft Technology Licensing, Llc | Distributed battery architecture |
US11038364B2 (en) * | 2018-01-10 | 2021-06-15 | Microsoft Technology Licensing, Llc | Parallel charging and discharging of batteries with disparate characteristics |
CN108321773B (zh) * | 2018-02-07 | 2019-07-30 | 上海艾为电子技术股份有限公司 | 检测电路及应用其的电子装置 |
-
2019
- 2019-04-15 WO PCT/JP2019/016162 patent/WO2020213034A1/ja active Application Filing
- 2019-04-15 US US17/430,189 patent/US20220158474A1/en active Pending
- 2019-04-15 JP JP2021514673A patent/JPWO2020213034A1/ja active Pending
- 2019-04-15 GB GB2113062.0A patent/GB2596441A/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5835366A (en) * | 1997-06-24 | 1998-11-10 | Telxon Corporation | Secondary battery boost circuit |
JP2010142371A (ja) * | 2008-12-17 | 2010-07-01 | Omron Healthcare Co Ltd | 電子血圧計 |
JP2016189044A (ja) * | 2015-03-30 | 2016-11-04 | セイコーエプソン株式会社 | 表示装置、及び、表示装置の制御方法 |
WO2018168848A1 (ja) * | 2017-03-13 | 2018-09-20 | 株式会社フジクラ | センサ装置およびセンサネットワークシステム |
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US20220158474A1 (en) | 2022-05-19 |
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