WO2012032861A1 - Système de pèse-personne - Google Patents

Système de pèse-personne Download PDF

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Publication number
WO2012032861A1
WO2012032861A1 PCT/JP2011/066427 JP2011066427W WO2012032861A1 WO 2012032861 A1 WO2012032861 A1 WO 2012032861A1 JP 2011066427 W JP2011066427 W JP 2011066427W WO 2012032861 A1 WO2012032861 A1 WO 2012032861A1
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WIPO (PCT)
Prior art keywords
unit
weight
measurement
load
data
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Application number
PCT/JP2011/066427
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English (en)
Japanese (ja)
Inventor
佐藤　泰雅
芳幸 辻
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オムロンヘルスケア株式会社
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Publication of WO2012032861A1 publication Critical patent/WO2012032861A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
    • G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means

Definitions

  • the present invention relates to a system for measuring the weight of a person to be measured, and more particularly to a weight measurement system for measuring a weight while communicating with a load sensor and a weight calculation unit.
  • Patent Document 1 The replacement of parts in Japanese Patent Application Laid-Open No. 2009-60950 (Patent Document 1) is mainly for appropriately changing the appearance design, but is not a part replacement related to the appearance design. There is a desire to replace the parts involved in general measurement as appropriate. For example, since a scale is not always required, there is a demand for eliminating a special installation space for the scale.
  • the user may configure the weight scale by selectively using the number of measurement units such as a plurality of load sensors. In this case, in order to accurately measure the weight, it is necessary to collect the load data from the measurement units used.
  • Patent Document 1 shows only a configuration for changing the appearance design, and uses a weight scale using the above-mentioned appropriately selected number of measurement units. No configuration for measuring body weight is shown.
  • an object of the present invention is to provide a weight measurement system capable of easily obtaining a load value from each measurement unit used for weight measurement.
  • the weight measurement system for measuring the weight of the person to be measured detects the applied load and transmits a load value derived from the detected load in response to the load request.
  • a weight calculation unit that wirelessly communicates with the measurement unit, and the weight calculation unit calculates a weight using a request transmission unit that transmits a load request and a load value received from one or more measurement units. Calculating means.
  • a load measurement unit includes a load sensor that detects a load to be applied, a measurement unit that derives a load value from the detected load, a wireless communication unit, and a power supply unit.
  • the unit includes request receiving means for receiving a request. When the request is received by the request receiving means, the derived load value is transmitted to the request source.
  • the measurement unit since the measurement unit transmits the load value when the request is received, the load value can be easily obtained from the measurement unit.
  • FIG. 1 is a schematic configuration diagram of a weight measurement system according to an embodiment. It is a figure which shows the external appearance of the weight scale using the measurement unit which concerns on embodiment. It is a block diagram of the measurement unit which concerns on embodiment. It is a block diagram of the hardware of the weight measurement system which concerns on embodiment. It is a functional block diagram of the measurement unit which concerns on embodiment. It is a functional block diagram of the calculation unit which concerns on embodiment. It is a flowchart which shows the process sequence of the weight measurement which concerns on embodiment. It is a flowchart which shows the process sequence of the weight measurement which concerns on embodiment. It is a flowchart which shows the process sequence of the weight measurement which concerns on embodiment. It is a flowchart which shows the process sequence of the weight measurement which concerns on embodiment. It is a flowchart which shows the process sequence of the weight measurement which concerns on embodiment. It is a flowchart which shows the process sequence of the weight measurement which concerns on embodiment.
  • the weight measurement system in the present embodiment has a function of measuring a human weight.
  • “weight” refers to the weight (mass) of a person who is a measurement target (hereinafter referred to as a person to be measured).
  • FIG. 1 shows a schematic configuration of a weight measurement system 1 according to the present embodiment.
  • the weight measurement system 1 includes a measurement unit 20, a calculation unit 40, and a display 511 on which a flat plate-like high-rigidity mounting surface 300 is mounted when measuring the weight of a measurement subject.
  • the external device 50 having The external device 50 is assumed to be a device having a communication function and an information output function, such as a PDA (Portable Digital Assistant) and a mobile phone.
  • PDA Portable Digital Assistant
  • the calculation unit 40 and the measurement unit 20 communicate wirelessly.
  • a wireless communication medium radio waves are assumed.
  • wireless communication with a relatively weak radio wave intensity is assumed, and therefore the communication area where radio waves can reach is also limited.
  • the measurement unit 20 detects the applied load and transmits a load value indicating the detected load to the calculation unit 40 in response to the request. At the time of weight measurement, a load applied via the mounting surface 300 to be mounted is detected and transmitted to the measurement unit 20.
  • the calculation unit 40 transmits a request to the measurement unit 20 during weight measurement, and calculates the body weight of the measurement subject based on the load value received in response to the request.
  • the external device 50 communicates with the calculation unit 40 wirelessly or by wire.
  • the external device 50 receives the weight value transmitted from the calculation unit 40 and displays the received weight value via the display 511.
  • the output mode of the external device 50 is not limited to display, and may be output by voice or printing.
  • calculation unit 40 and the external device 50 are provided separately, the calculation unit 40 may be integrally provided with the output function of the external device 50.
  • the person to be measured uses one or more measurement units 20 to configure a weight scale when he / she wishes to measure weight.
  • FIG. 1B schematically shows a situation where the four measurement units 20 in FIG. 1A are selected from the plurality of measurement units 20 in order to form a weight scale.
  • the measurement unit 20 has a uniform external shape.
  • the measurement subject sets the selected four measurement units 20 to be capable of communication and load detection by turning on the power.
  • four measurement units 20 are appropriately arranged on the horizontal floor surface, and the placement surface 300 is mounted on the arranged measurement units 20.
  • a weight scale can be comprised.
  • FIG. 2A shows a case where a weight scale is configured using four measurement units 20.
  • the four measurement units 20 are arranged so that the placement surface 300 can be supported horizontally with the floor surface.
  • the mounting surface 300 has a substantially square shape, and the measurement units 20 are arranged at each of the four corners of the square.
  • the arrangement mode is not limited to this. That is, even when a load is applied from the placement surface 300 in the floor direction, the placement surface 300 may be arranged in a manner that can support the placement surface 300 in parallel with the floor surface.
  • FIG. 2A a case where four measurement units 20 are used is shown, but the number of measurement units 20 used is not limited to four, and may be five or more. As shown in (B) of 2, the number may be 3 or less (at least one or more).
  • the measurement unit 20 includes a load cell 21 that is a load sensor for detecting an applied load, a power supply unit 22 such as a battery for supplying power to each unit of the measurement unit 20, and a PCB. (Abbreviation of printed circuit board) 23.
  • the PCB 23 includes a measurement circuit configured using a simple processor and a wireless module. The measurement circuit inputs a load signal that is detected and sequentially output by the load cell 21, processes the input load signal, and derives a load value. The derived load value is transmitted via the wireless module.
  • the measurement unit 20 includes a leg 20A for installing the measurement unit 20 on the floor and a main body 20B to which the leg 20A is integrally attached.
  • the main body portion 20B includes each portion shown in FIG.
  • the surface in contact with the floor surface of the leg 20A is made of a material having good adhesion to the floor surface so that the measurement unit 20 itself can be stably supported in a horizontal state with the floor surface.
  • the surface of the main body 20B opposite to the surface on which the legs 20A of the housing are attached is a flat surface, and the surface is made of a material having good adhesion to the material of the mounting surface 300.
  • each measurement unit 20 is loaded with a weight, and the measurement target is based on the load value derived from each measurement unit 20.
  • a person's weight can be measured.
  • the weight scale can be easily configured by the person to be measured simply mounting the placement surface 300 on the measurement unit 20 arranged on the floor surface. Therefore, the weight scale can be configured by using the mounting surface 300 having a size, a pattern, and a material according to a preference or a use environment. Further, the failed measurement unit 20 can be easily replaced, which is excellent in convenience.
  • the measurement unit 20 includes an A / D (Analog / Digital) conversion unit 230 and an A / D conversion unit that convert analog output signals of the load cell 21, the sensor group 243, the load cell 21, and the sensor group 243 into digital data and output the digital data.
  • 230 includes a measurement unit 231 that inputs and processes data output from 230, and a communication unit 232 that transmits data output from the measurement unit 231 to the calculation unit 40 and receives data from the calculation unit 40.
  • the A / D conversion unit 230, the measurement unit 231 and the communication unit 232 correspond to the PCB 23.
  • the load cell 21 is composed of a strained body made of a metal member that deforms in response to an applied load, and a strain gauge stretched on the strained body.
  • the strain gauge expands and contracts and the resistance value changes according to the expansion and contraction of the strain gauge, and the resistance change is derived as a load signal output. Therefore, when the measurement subject gets on the placement surface 300 and the strained body is distorted by the weight of the measurement subject applied to the load cell 21, the weight is measured as the change in the load signal output described above.
  • the load cell 21 is used as a load sensor for detecting the load.
  • a load sensor for detecting the load.
  • the amount of applied force (load) can be detected, for example, a spring or a piezo film is used. It may be a sensor used, an element for measuring compression, a displacement sensor, or the like.
  • the sensor group 243 includes a sensor that detects an aspect in which the measurement unit 20 is installed, and a sensor that detects an external environmental condition around the measurement unit 20.
  • the sensors that detect the installation mode include an acceleration sensor that detects the direction of the measurement unit 20, a weight sensor that detects whether or not the mounting surface 300 is mounted, that is, whether or not there is a load.
  • Sensors that detect external environmental conditions include temperature sensors that detect ambient temperature, sensors that detect ambient atmospheric pressure, and the like.
  • the measurement unit 231 has a simple microprocessor configuration to control the operation of the measurement unit 20. Specifically, it includes a CPU (Central Processing Unit) 240, a memory 242, and a timer 241 for measuring time.
  • the timer 241 may be a counter whose counter value can be reset by the CPU 240.
  • the calculation unit 40 includes an operation unit 42 including buttons and switches operated by the measurement subject, a control unit 41 for controlling the operation of the calculation unit 40, a storage unit 43, and a communication unit 45.
  • the communication unit 45 has a function for communicating with the measurement unit 20 and the external device 50.
  • the storage unit 43 and the memory 242 include various media such as a ROM (Read Only Memory), a RAM (Random Access Memory), and a nonvolatile storage medium, and store programs, data, and the like.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • nonvolatile storage medium and store programs, data, and the like.
  • the control unit 41 includes a CPU 410, a timer 411 for measuring time, and a memory 412.
  • FIG. 5 shows a functional configuration of the measurement unit 20.
  • the CPU 240 of the measurement unit 20 includes a convergence detection unit 30, a zero point detection unit 31, a sensor output processing unit 32, a load acquisition unit 34, and a communication processing unit 35. These functions are realized by a program and / or a circuit.
  • the program is stored in a predetermined storage area of the memory 242 in advance, and the function of each unit is realized by the CPU 240 reading the program instruction and executing the read instruction.
  • the convergence detection unit 30 detects whether or not the load variation detected by the load cell 21 converges within a predetermined range.
  • the convergence detection unit 30 has no load that can be applied to the mounting surface 300 mounted on the measurement unit 20 immediately after the power is turned on. That is, the convergence of the load detected by the load cell 21 in the no-load state (hereinafter referred to as first convergence). ) And the convergence of the load detected after the person to be measured gets on the placement surface 300 (hereinafter referred to as second convergence).
  • the zero point detection unit 31 determines the load detected by the load cell 21 when the first convergence is detected by the convergence detection unit 30 as a zero point.
  • the determined zero point load is stored in the memory 242 as zero point data 26.
  • the zero point refers to the output value of the load cell 21 in a no-load state. It is known that the strain gauge expansion / contraction rate of the load cell 21 changes with time or according to the ambient temperature. Therefore, at the time of measurement, so-called zero point detection is required in which the load cell 21 is not subjected to any load such as the body weight of the person to be measured, and the output value of the load cell 21 when there is no load due to the load of only the mounting surface 300 is set to zero. It is said.
  • the weight of the subject is calculated based on the difference between the output value of the load cell 21 when the weight (load) of the subject is applied to the load cell 21 and the output value of the load cell 21 when there is no load. Is measured by measuring.
  • the sensor output processing unit 32 processes the output from the sensor group 243 and gives it to the communication processing unit 35.
  • the load acquisition unit 34 acquires the load sequentially detected by the load cell 21 as a load value in time series, and stores it in the memory 242 as time series load data 252.
  • the load value refers to a value obtained by subtracting the zero point data 26 detected by the zero point detection unit 31 from the detected load.
  • Time series refers to acquiring the load output from the load cell 21 in association with the time measurement data output from the timer 241. Therefore, by adding the time data output from the timer 241 to the load value based on the load sequentially acquired from the load cell 21, these load values are acquired in time series.
  • the load acquisition unit 34 includes a convergent load acquisition unit 341.
  • the convergence load acquisition unit 341 acquires a load detected by the load cell 21 as a load value in a period in which the second convergence is detected.
  • the load value acquired by the convergent load acquisition unit 341 is stored in the memory 242 as convergent load data 251.
  • the communication processing unit 35 includes a data generation unit 36 for generating data for transmission addressed to the calculation unit 40, a transmission unit 37 for transmitting the generated data, and a reception unit 38 for receiving the data. .
  • convergent load data 251 acquired by the convergent load acquisition unit 341, time-series load data 252 acquired by the load acquisition unit 34, zero point data 26, and ID (Identification) data that is identification information of the measurement unit 20 are stored.
  • 27 and destination data 28 indicating the destination of the data are stored.
  • the destination data 28 indicates data for identifying the calculation unit 40 (corresponding to calculation unit ID data 53 described later).
  • the functional configuration of the calculation unit 40 will be described with reference to FIG.
  • the CPU 410 of the calculation unit 40 calculates the weight based on the received load value, the measurement unit detection unit 60 that detects identification information (ID data 27) of one or more measurement units 20 used for measuring the body weight of the measurement subject.
  • the calculation unit 62 includes a convergence detection unit 63 that detects the second convergence of the received time-series load values.
  • the measurement unit detection unit 60 includes a trigger detection unit 61 for detecting a change in load value including a trigger according to the received time-series load value. Details of trigger detection by the trigger detector 61 will be described later.
  • the communication processing unit 65 includes a reception unit 66 that receives data transmitted from the measurement unit 20, a transmission unit 67 that transmits data to the measurement unit 20, and a data generation unit 68 that generates transmission data.
  • the memory 412 includes received load data 51 indicating the load data received from the measurement unit 20, measurement unit ID data 52 indicating the identification information of the measurement unit 20 detected by the measurement unit detector 60, and identification information of the calculation unit 40.
  • Calculation unit ID data 53, weight data 54 indicating the weight calculated by the calculation unit 62, history data 55, mode data 56, and condition data 57 are stored.
  • the measurement unit ID data 52 includes existence unit ID data 521.
  • the existence unit ID data 521 indicates the ID data 27 of the measurement unit 20 (however, the measurement unit 20 that can be communicated with the calculation unit 40 when the power is turned on) existing in the wireless communicable area of the calculation unit 40.
  • the history data 55 indicates a history in which identification information of the measurement unit 20 used in the past weight measurement is accumulated.
  • the history data 55 is generated by storing the measurement unit ID data 52 in association with the weight measurement time every time the weight measurement ends.
  • the mode data 56 indicates a mode for detecting the measurement unit 20 used for weight measurement.
  • the condition data 57 refers to data serving as a reference for detecting the measurement unit 20 used for weight measurement based on the installation mode or external environmental conditions detected by the sensor group 243.
  • the calculated unit ID data 53 is stored at the time of factory shipment. Further, the mode data 56 and the condition data 57 are previously input by the measurement subject and stored in the memory 412 by operating the operation unit 413.
  • the calculation unit 40 detects the measurement unit 20 according to a plurality of types of modes.
  • a mode for detection is specified by mode data 56 stored in the memory 412.
  • the mode includes, for example, a “previous use” mode, an “environment / installation” mode, and a “trigger” mode.
  • the “previous use” mode is a mode for detecting the measurement unit 20 used in the previous weight measurement based on the history data 55.
  • the “environment / installation” mode is a mode for detecting the measurement unit 20 in the same external environment condition or installation mode.
  • the “trigger” mode is a mode for analyzing the time series load value received from each measurement unit 20 and detecting the measurement unit 20 that has transmitted the time series load value including the trigger based on the analysis result. These modes may be set in combination. For example, by combining the “previous use” mode and the “trigger” mode, a mode in which the measurement unit 20 that transmits a time-series load value including the trigger among the measurement units 20 used in the previous weight measurement is detected. Can be set.
  • FIG. 7 to FIG. 10 are flowcharts showing a weight measurement processing procedure according to the present embodiment. These flowcharts are stored in advance in the memory 242 of the measurement unit 20 or the memory 412 of the calculation unit 40 as a program.
  • the CPU 240 or 410 reads out these programs from the memory 242 or 412 and executes the instructions of the read programs, thereby realizing a processing flowchart.
  • 11 to 15 show configuration examples of the data packet PA used for wireless communication between the measurement unit 20 and the calculation unit 40 in these flowcharts.
  • the data format of wireless communication in the present embodiment is not limited to a data packet, and may be a frame, for example.
  • FIG. 11 shows a basic configuration of the data packet PA according to the present embodiment.
  • data packet PA includes a field F1 for storing type data indicating the type (kind) of data packet PA, and a field for storing destination data for identifying the destination of data packet PA.
  • F2 includes a field F3 for storing data for identifying the transmission source of the data packet PA and a field F4 for storing data to be transmitted.
  • FIG. 12 shows the configuration of the data packet PA1.
  • the data packet PA1 is an inquiry data packet that the calculation unit 40 transmits to the surrounding area in order to confirm the presence of the measurement unit 20.
  • the type “Q” inquiry
  • the broadcast address “BD” is stored as destination data in the field F2
  • the transmission source of the data packet PA1 is stored in the field F3.
  • Calculation unit ID data (“ID40”) 53 of the calculation unit 40 is read from the memory 412 and stored.
  • the data in the field F4 of the data packet PA1 is indefinite data (NULL).
  • FIG. 13 shows the configuration of the data packet PA2.
  • the data packet PA2 is a response (reply) data packet to the inquiry of the data packet PA1. That is, it indicates a data packet transmitted as a reply to the inquiry from the measurement unit 20 that has received the data packet PA1.
  • the type “QA” inquiry response
  • the calculation unit ID data 53 (“ID40”) of the calculation unit 40 is stored as the destination data in the field F2
  • the field F3 is stored.
  • the data in the field F4 is indefinite data (“NULL”).
  • FIG. 14 shows the configuration of the data packet PA3.
  • the data packet PA3 is a data packet for a load request that requests the measurement unit 20 to transmit a load value.
  • the type “R” (load request) is stored in the field F1
  • the ID data 27 (“ID20”) of the measurement unit 20 is stored as the transmission destination data in the field F2
  • the field F3 is stored in the field F3.
  • the calculated unit ID data 53 (“ID40”) read from the memory 412 is stored as the transmission source data
  • the data MD indicating the mode is stored in the field F4.
  • Data MD indicates mode data 56 read from memory 412.
  • FIG. 15 shows the configuration of the data packet PA4.
  • the data packet PA4 is a response (reply) data packet to the load request data packet PA3.
  • the type “RA” request response
  • the field F1 the calculated unit ID data 53 (“ID40”) read from the memory 412 as the destination data
  • the field F3 is stored.
  • ID data 27 (“ID20”) of the measurement unit 20 is stored as transmission source data of the data packet PA4, and data EV and data WD are stored in the field F4.
  • the data EV in the field F4 indicates external environmental condition data acquired from the sensor group 243 or installation mode data.
  • the data WD indicates the convergent load data 251 or the time-series load data 252 read from the memory 242. Specifically, when the data MD of the received data packet PA3 indicates “trigger”, the time series load data 252 read from the memory 242 is stored in the field F4 of the response data packet PA4. In other modes, the convergent load data 251 is read from the memory 242 and stored.
  • FIG. 7 shows a flowchart of the main process.
  • measurement unit 20 used for weight measurement is detected while communicating between CPU 410 and CPU 240 of each measurement unit 20 (step S1).
  • the CPU 410 calculates the weight of the person to be measured based on the load value received from the detected one or more measurement units 20 (step S3).
  • the calculation result is output (step S5). Thereby, a series of weight measurement operations are completed.
  • step S1 Details of the detection process in step S1 will be described with reference to FIGS. Note that it is assumed that the measurement unit 20 used by the person to be measured for weight measurement is powered on in advance, can communicate, and can detect a load.
  • the detection process is started.
  • an inquiry data packet PA1 shown in FIG. 12 is generated by the data generation unit 68, and the generated data packet PA1 is transmitted by the transmission unit 67 (step S10). Since the broadcast address is stored in the field F2 of the data packet PA1, the data packet PA1 can be received by all the measurement units 20 existing in the wireless communicable area of the calculation unit 40.
  • the receiving unit 66 After transmitting the data packet PA1, the receiving unit 66 receives the data packet PA2 transmitted from each measurement unit 20 in response to the data packet PA1 (step S11).
  • the CPU 410 stores the ID data 27 stored in the field F3 of the received data packet PA2 in the memory 412 as the existing unit ID data 521. Thereby, the ID data 27 of all the measurement units 20 (however, the measurement units 20 capable of communication and load detection when the power is turned on) existing in the wireless communicable area of the calculation unit 40 can be acquired.
  • the measurement unit detector 60 determines the current mode (step S15). Specifically, the mode is determined based on the mode data 56 stored in the memory 412 in advance. When the mode data 56 indicates the “previous use” mode, the measurement unit detection unit 60 instructs the data generation unit 68 to generate the data packet PA3 in the “previous use” mode, and sets the “environment / installation” mode. When pointing, the generation of the data packet PA3 in the “environment / installation” mode is instructed, and when indicating the “trigger” mode, the generation of the data packet PA3 in the “trigger” mode is instructed.
  • the data generation unit 68 In each of steps S17, S19, and S21, the data generation unit 68 generates a data packet PA3 according to the instruction.
  • step S17 the data packet PA3 storing the data MD instructing the “previous use” mode is generated.
  • the ID data 27 of the measurement unit 20 used for the previous weight measurement read from the history data 55 is stored.
  • step S19 the data packet PA3 in which the data MD indicates the “environment / installation” mode is generated, and in step S21, the data packet PA3 in which the data MD indicates the “trigger” mode is generated.
  • the data packet PA3 generated in this way is transmitted by the transmission unit 67 (step S23). Thereafter, the process proceeds to step S61 described later.
  • the data packet PA3 generated in step S17 described above is transmitted to the measurement unit 20 used for the previous weight measurement.
  • the data generation unit 68 generates a data packet PA3 in which each of the ID data 27 included in the presence unit ID data 521 is stored in the field F2. Therefore, the data packet PA3 generated in steps S19 and S21 is transmitted to all the measurement units 20 existing in the communicable area of the calculation unit 40.
  • reception unit 38 of CPU 240 determines whether or not to receive any data packet PA (step S30). While the data packet PA is not received (NO in step S30), the reception standby process in step S30 is repeated. If it is determined that any data packet PA has been received (YES in step S30), CPU 240 refers to the type of field F1 of received data packet PA and determines the type of data packet PA. As a result of the determination, if it is determined that the type “Q” is instructed (YES in step S31), the CPU 240 instructs the data generation unit 36 to generate the data packet PA2. Thereby, the data generation unit 36 generates the data packet PA2.
  • the generated data packet PA2 is transmitted by the transmission unit 37 (step S33).
  • step S33 the data in the field F3 of the received data packet PA2 is stored in the memory 242 as the destination data 28. Thereafter, the process returns to the reception standby process in step S30.
  • step S31 If it is determined in step S31 that it is not the data packet PA1 (NO in step S31), it is determined whether or not it is the data packet PA addressed to itself (step S35). Specifically, the transmission destination data in the field F2 of the data packet PA is compared with the ID data 27 in the memory 242, and it is determined whether or not it is addressed to itself based on the comparison result (step S35). If the two data do not match, it is determined that the data is not addressed to itself, and the received data packet PA is ignored (discarded). Thereafter, the process returns to the reception standby process in step S30.
  • step S35 the data packet PA determined to be addressed to itself is the data packet PA3 transmitted in step S23.
  • the CPU 240 determines the mode. That is, the mode specified by the data MD in the field F4 of the received data packet PA3 is determined.
  • the data generation unit 36 When determining that the data MD indicates “previous use”, the data generation unit 36 generates a data packet PA4 in which the convergent load data 251 in the memory 242 is stored as the data WD (steps S39 and S41).
  • the CPU 240 instructs the sensor output processing unit 32 to acquire the output from the sensor group 243.
  • the sensor output processing unit 32 acquires the data EV based on the output from the sensor group 243 (step S43).
  • the data generation unit 36 reads the convergence load data 251 in the memory 242, and generates a data packet PA4 storing the read data WD as the convergence load data 251 and the acquired data EV (step). S45, S47).
  • the data generation unit 36 When it is determined that the data MD indicates “trigger”, the data generation unit 36 generates a data packet PA4 in which the time-series load data 252 in the memory 242 is stored as the data WD (steps S49 and S51).
  • the data in the field F3 of the received data packet PA3 is stored in the field F2.
  • the generated data packet PA4 is transmitted to the calculation unit 40 by the transmission unit 37.
  • step S61 reception unit 38 determines whether or not to receive any data packet PA (step S61). While any data packet PA is not received, the process of step S61 is repeated to enter a reception standby state.
  • the data packet PA detected in the reception standby state is the data packet PA4 transmitted in step S53.
  • the calculation unit 62 determines the mode based on the mode data 56 of the memory 412 (step S63).
  • the calculation unit 62 reads the data WD (corresponding to the convergence load data 251) stored in the field F4 of all the data packets PA4 received in step S61, The body weight is calculated by integrating (calculating the total sum) all the read data WD (step S67).
  • the data WD to be used for integration is determined from the measurement unit 20 detected in the “previous use” mode.
  • the weight can be calculated using the data WD of the measurement unit 20 used for weight measurement.
  • step S69 the body weight is calculated by integrating (summing up) the data WD (corresponding to the convergent load data 251) of the data packet PA4 in which the data EV and the condition data 57 match (step S73).
  • the measurement unit 20 used for weight measurement is used in the same environment (temperature, humidity, etc.) or in the same installation mode (direction, etc.), as data WD to be used for integration,
  • the measurement unit 20 used for weight measurement is detected, and the The weight can be calculated using the data WD.
  • the trigger detection unit 61 detects the trigger of the time series load data based on the data WD corresponding to the time series load data 252 of each received data packet PA4 ( Step S75).
  • the weight is calculated by the calculation unit 62 using only the data WD in which the trigger is detected (step S79).
  • the load values detected in time series of the measurement unit 20 used for weight measurement exhibit almost the same change, that is, there is a slight time lag, but there is a trigger, so the data to be used for integration
  • the measurement unit 20 used for weight measurement can be detected and the weight can be calculated using the data WD. .
  • step S67 step S73 or step S79, the process proceeds to step S5 in FIG. 8, and the weight calculated in the external device 50 is output.
  • the measurement unit 20 that responds by returning the data packet PA2 to the data packet PA1, that is, only the measurement unit 20 in which the existence of the calculation unit 40 in the communicable area is detected is addressed.
  • the data packet PA3 of the load value transmission request is transmitted to the.
  • the data packet PA3 can be transmitted only when the measurement unit 20 exists in the communicable area, and the communication load and power consumption of the calculation unit 40 can be reduced.
  • step S75 An example of trigger detection in step S75 will be described with reference to FIG.
  • the trigger detection unit 61 can acquire data WD indicating the time-series load data 252 from each of the four measurement units 20.
  • the horizontal axis of the graph in FIG. 16 indicates the passage of time (T), and the vertical axis indicates the load value detected with the passage of time.
  • the trigger detection unit 61 analyzes the time-series load value data indicated by the data WD of the data packet PA4 and detects a trigger based on the analysis result, the measurement unit 20 that is the transmission source of the data packet PA4 It can be determined that the measurement unit 20 is used for weight measurement.
  • FIG. 17 shows graphs L1 and L2 corresponding to the data WD from the two measurement units 20 that detected the trigger in FIG.
  • the convergence detection unit 63 translates the graph L1 or L2 in the time axis direction so that the times TR1 and TR2 coincide with the common time TR.
  • the graph L2 is translated in the time axis direction so that the time TR1 coincides with the time TR1.
  • the convergence detection unit 63 is powered on and then the person to be measured gets on the placement surface 300 and the movement of the subject on the placement surface 300 stops. Then, it is possible to detect a stable period, that is, a period CV in which the graphs L1 and L2 are both shifted to the second convergence state.
  • the calculation unit 62 can calculate the weight by integrating the load values indicated by the graphs L1 and L2 in the period CV.
  • the calculated weight is a value from which an error due to the body movement of the measurement subject is excluded.
  • step S39 and step S45 of each measurement unit 20 The same processing procedure as that on the calculation unit 40 side described in FIG. 17 is also executed in step S39 and step S45 of each measurement unit 20.
  • the processing procedure on the measurement unit 20 side will be described with reference to FIG.
  • the horizontal axis indicates the passage of time (T), and the vertical axis indicates the load value detected with the passage of time.
  • a trigger is detected at time TR1.
  • the convergence detection unit 30 detects the first convergence in a period from when the power is turned on to the time TR1, and the zero point detection unit 31 detects the zero point during the first convergence period.
  • the convergence detection unit 30 detects the second convergence period CV.
  • the convergent load acquisition unit 341 acquires the load value detected in the period CV (more specifically, the average value of the load values in the period CV).
  • step S39 and step S45 of each measurement unit 20 the load value is acquired in the period CV.
  • the convergent load acquisition unit 341 of each measurement unit 20 acquires a load value from which an error caused by the body movement of the measurement subject riding on the placement surface 300 is eliminated. Since the acquired load value can be transmitted to the calculation unit 40, the calculation unit 62 of the calculation unit 40 can calculate a weight value that does not include the error.
  • the calculation unit 40 is used for weight measurement by transmitting the data packet PA3 requesting the load value and receiving the data packet PA4 of the response from the measurement unit 20 to the data packet PA3.
  • the load value from the measurement unit 20 can be acquired. Further, since the measurement unit 20 can use the request reception of the load value as the load value transmission timing, the measurement unit 20 does not need to adjust the transmission timing by itself and can simplify the function.
  • the load unit transmission request data packet PA3 is transmitted to the measurement unit 20 in which the presence of the calculation unit 40 in the communicable area is detected. You may make it transmit data packet PA3 which stored the broadcast address in the field F2.
  • the calculation unit 40 may transmit the ID data 27 of the measurement unit 20 that is a transmission source of the load value used for weight calculation to the external device 50 for output.
  • the measurement subject can check the measurement unit 20 in the failure state in which the load value cannot be transmitted from the measurement units 20 on which the placement surface 300 is mounted.
  • the number of weight scales communicating with the calculation unit 40 is one, but it may be communicated with a plurality of weight scales.
  • a group identifier is added to the ID data 27 of the measurement unit 20.
  • This group identifier indicates a group of the measurement units 20 that constitutes the weight scale in which the measurement unit 20 is used.
  • the calculation unit 40 can acquire the load value and calculate the weight while identifying the measurement unit 20 in units of groups based on the ID data 27 to which the group identifier is added, that is, in units of scales.
  • the calculation unit 40 can calculate the weight of the person to be measured for each weight scale.

Abstract

L'invention concerne un système de pèse-personne (1) permettant de mesurer le poids d'une personne. Ledit système est doté d'unités de mesure (20) servant à détecter une charge appliquée et à transmettre une valeur de charge obtenue à partir de la charge détectée en réponse à une demande de charge, et d'une unité de calcul (40) en communication sans fil avec les unités de mesure (20). L'unité de calcul (40) transmet la demande de charge et calcule le poids de la personne à l'aide d'une valeur de charge reçue d'une ou plusieurs unités de mesure (20).
PCT/JP2011/066427 2010-09-06 2011-07-20 Système de pèse-personne WO2012032861A1 (fr)

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JP2010198834A JP2012057969A (ja) 2010-09-06 2010-09-06 体重計測システム
JP2010-198834 2010-09-06

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JP2017167051A (ja) 2016-03-17 2017-09-21 北川工業株式会社 計測情報出力システム及びプログラム
WO2024024165A1 (fr) * 2022-07-25 2024-02-01 パナソニックＩｐマネジメント株式会社 Dispositif de gestion de données de mesure, procédé de gestion de données de mesure, programme et système de mesure

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JPH1073479A (ja) * 1996-06-10 1998-03-17 Kubota Corp 無線式計量装置
JPH1073477A (ja) * 1996-06-10 1998-03-17 Kubota Corp 無線式計量装置
JP2006017466A (ja) * 2004-06-30 2006-01-19 Teraoka Seiko Co Ltd 計量台、計量システム、及び在庫管理方法
JP2010088473A (ja) * 2008-10-03 2010-04-22 Showa Denko Kk センサ制御システム

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WO2001071298A1 (fr) * 2000-03-20 2001-09-27 Hill-Rom Services, Inc. Appareil de pesage d'un patient
JP2004136811A (ja) * 2002-10-18 2004-05-13 Auto Network Gijutsu Kenkyusho:Kk 乗員検知センサ及び乗員検知装置
JP5219328B2 (ja) * 2004-12-02 2013-06-26 大和製衡株式会社 重量測定装置
JP4963101B2 (ja) * 2007-11-13 2012-06-27 パラマウントベッド株式会社 ベッドにおける使用者の状態検知システム

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JPH08219856A (ja) * 1995-02-14 1996-08-30 Kubota Corp ロードセル式はかり
JPH1073479A (ja) * 1996-06-10 1998-03-17 Kubota Corp 無線式計量装置
JPH1073477A (ja) * 1996-06-10 1998-03-17 Kubota Corp 無線式計量装置
JP2006017466A (ja) * 2004-06-30 2006-01-19 Teraoka Seiko Co Ltd 計量台、計量システム、及び在庫管理方法
JP2010088473A (ja) * 2008-10-03 2010-04-22 Showa Denko Kk センサ制御システム

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