JP2011191234A - Scale and scale system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To readily grasp a change in a measured weight. <P>SOLUTION: Identification information of an exclusive RFID card for an individual which is worn by a person whose weight is to be measured is read by an RFID reader/writer 5, while a measured weight value and a date of measurement are written in the RFID card, and it is so arranged as to have a personal computer fetch the data regarding the weight values and the dates written and accumulated in the RFID card, via the RFID reader/writer, at each weight measurement, and to display the change in the weight by using the personal computer. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a weight scale and a weight scale system using the weight scale, and more particularly to a weight scale and a weight scale system using RFID (Radio Frequency Identification) which is a recognition technology using radio waves.

  In recent years, interest in weight management has increased due to health consciousness, and there have been many opportunities to measure one's body weight at home, and it has been installed in facilities when using various facilities such as bathing facilities and sports facilities outside the home. There are many occasions to measure body weight using a conventional scale. As such a weight scale, a digital weight scale (see, for example, Patent Document 1) is becoming mainstream.

JP 2006-162589 A

  In order to know the change in weight over a relatively long period of time measured at various facilities inside and outside the home as described above, it is necessary to record the measured weight value, which is bothersome and difficult to change. Trends cannot be easily grasped.

  The present invention has been made paying attention to such a situation, and it is an object of the present invention to easily grasp a change in weight over a relatively long period measured in various places and to use it for weight management. .

  In order to achieve the above object, the present invention is configured as follows.

  (1) The weight scale of the present invention is a weight scale that measures and displays the weight of the person to be measured placed on the platform, and is identification information of an individual RFID tag carried by the person to be measured who measures the weight. A reading / writing unit that writes information to the RFID tag, and a control unit that controls the reading / writing unit to write the measured weight value to the RFID tag. Information including the weight value written in the RFID tag can be erased by the computer and stored in the computer via a reading / writing device controlled by the computer.

  The RFID tag refers to a wireless IC chip used for identifying an object. The shape of the RFID tag is preferably a card shape, but may be other shapes such as a stick shape and a label shape. It is called by various names such as a tag, an RF tag, a wireless tag, and an electronic tag.

  According to the weight scale of the present invention, when a person carrying a personal RFID tag measures the weight on the platform, the identification information of the RFID tag is read, and the measured weight value is the RFID. Since it is written on the tag, every time the body weight is measured, the weight value measured on the RFID tag is written and accumulated. In addition, since the information including the weight value written in the RFID tag can be stored in a hard disk of a computer via a reading / writing device and displayed on a display unit, for example, in a graph or the like, it is relatively long-term. It is possible to easily grasp the change in weight over a range of weights and use it for weight management. Furthermore, since the information including the weight value written in the RFID tag can be erased by the computer, a storage area of the RFID tag for writing a new weight value can be secured.

  (2) In a preferred embodiment of the weight scale according to the present invention, the weight scale includes a timekeeping section for measuring time, and the control section, together with the measured weight value, displays the date when the weight obtained from the timekeeping section is measured, The reading / writing unit is controlled to write to the RFID tag.

  According to this embodiment, since the measurement date is written on the RFID tag together with the measured weight value, the weight value and date information written on the RFID tag are stored in the computer via the reading / writing device. By storing and displaying the information, it is possible to grasp the change in weight over a relatively long period in detail and use it for weight management.

  (3) In a further preferred embodiment of the weight scale according to the present invention, the weight scale includes a display unit for displaying the measured weight value, and the control unit reads the weight value written in the RFID tag as the read / write unit. Is read and displayed on the display unit.

  According to this embodiment, the weight value written in the RFID tag can be read and displayed on the display unit of the scale.

  (4) In another embodiment of the weight scale of the present invention, the weight scale is installed in various facilities, and the RFID tag can be used as a rocker key of the facility.

  Examples of the various facilities include a hot bath facility such as a hot spring and a health land, a sports facility such as a fitness club, an accommodation facility, and a leisure facility.

  The phrase “can be used as a locker key” means that the locker can be locked or released by performing an operation for locking or releasing the RFID tag over the RFID reader / writer provided in the locker.

  According to this embodiment, since the weight value measured by the scales installed in various facilities is written to the RFID tag, the weight when using various facilities can be grasped, while the RFID tag It can also be used as a locker key when using other lockers.

  (5) The weight scale system of the present invention is dedicated to the weight scale according to the present invention and an individual carried by the person to be measured for weight, and the identification information is read and measured by the weight scale. An RFID tag on which the weight value is written, and the RFID tag includes information on the weight value written on the RFID tag via a reading / writing device controlled by a computer. It can be erased by a computer and stored in the computer.

  According to the weight scale system of the present invention, when a person carrying an RFID tag for personal use measures the weight on the platform, the identification information of the RFID tag is read, and the measured weight value is obtained. Since it is written in the RFID tag, every time the weight is measured, the measured weight value is written and accumulated in the RFID tag. In addition, since the information including the weight value written in the RFID tag can be stored in a hard disk of a computer via a reading / writing device and displayed on the display unit, the weight scales installed in various places It is possible to easily grasp changes in weight over a relatively long period of time as measured by. Furthermore, since the information including the weight value written in the RFID tag can be erased by the computer, a storage area of the RFID tag for writing a new weight value can be secured.

  Thus, according to the present invention, when a person carrying a personal RFID tag measures the weight, the identification information of the RFID tag is read, and the measured weight value is written on the RFID tag. Therefore, every time the weight is measured, the measured weight value is written and accumulated in the RFID tag. In addition, since the information including the weight value written in the RFID tag can be stored in a hard disk of a computer via a reading / writing device and displayed on the display unit, a change in weight over a relatively long period of time can be displayed. It can be easily grasped and used for weight management. Furthermore, since the information including the weight value written in the RFID tag can be erased by the computer, a storage area of the RFID tag for writing a new weight value can be secured.

FIG. 1 is a perspective view of a weight scale according to an embodiment of the present invention. FIG. 2 is a perspective view of the RFID card. FIG. 3 is a schematic configuration diagram of the weight scale system according to the embodiment of the present invention. FIG. 4 is a block diagram showing the configuration of the weight scale. FIG. 5 is a diagram showing a storage configuration of the memory of the RFID card. FIG. 6 is a flowchart for explaining the operation of the scale. FIG. 7 is a view showing a display example of weight change. FIG. 8 is a diagram showing another display example of weight change. FIG. 9 is a block diagram for explaining reading of RFID card data by a personal computer.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 is a perspective view of a weight scale according to an embodiment of the present invention.

  The scale 1 of this embodiment is installed in each home, or a sports facility such as a hot-spring facility such as a hot spring or a health land, or a fitness club.

  The weight scale 1 includes a weight scale body 2 having a platform on which a person to measure a weight is placed, a support column 3 attached to the weight scale body 2, and an operation display unit 4 attached to the upper portion of the support pole 3. And an RFID reader / writer 5 for reading information from an RFID card (to be described later) and writing information. The operation display unit 4 includes a plurality of operation keys 6 and a 7-segment display display unit 7.

  A user of the facility carries an RFID card 8 which is a personal RFID card, for example, as shown in FIG. 2, and the IC card 10 with an antenna is enclosed in the RFID card 8. It is configured. The RFID card 8 can be purchased from, for example, the facility or the manufacturer of the scale 1. Payment information can be recorded on the RFID card 8, and when the RFID card 8 is used for a vending machine in the facility, the fee is settled at the front desk when the facility leaves the facility. can do. The RFID card 8 is printed with a list of facilities at various places where the card 8 can be used.

  The RFID card 8 is capable of transmitting and receiving information such as an identification number by radio waves (radio frequency: RF), a transmission / reception unit including an antenna that transmits and receives RF signals, and transmission and reception of RF signals. A control unit that controls reception and a storage unit that stores an identification number, a weight value, and the like are provided. The RFID may be any method such as an electromagnetic induction method or a radio wave method.

  The weight scale 1 of this embodiment is configured as follows so that a change in weight over a relatively long period can be easily grasped.

  The weight scale 1 can be measured by, for example, a facility user placing its weight on the platform of the weight scale body 2, and the user can, for example, hold an RFID card 8 carried around the neck. The measured weight value can be written to the RFID card 8 together with the measurement date by holding the RFID reader / writer 5 of the scale 1 over the RFID reader / writer 5.

  As shown in FIG. 3, the scale 1 is installed in each home and various facilities, for example, the A facility, the B facility, the C facility, etc. The weight is measured and the RFID card 8 is held over the RFID reader / writer 5 of the scale 1 so that the measured weight value is written to the RFID card 8 together with the measurement date.

  FIG. 4 is a block diagram showing the configuration of the weight scale of this embodiment.

  This scale 1 is an RFID reader / writer for reading the identification number stored in the RFID card 8 in a non-contact manner and writing the measured weight value when the RFID card 8 exists in a certain readable / writable area. 5, a memory 18 for storing a measured body weight value, an operation key 6, a weight sensor 19 including a load cell for detecting the weight, and the analog weight signal from the weight sensor 19 is converted into a digital weight signal. The D converter 20, the CPU 21 as a control unit that controls each part, calculates the body weight value based on the digital weight signal, the display unit 7 that displays the body weight value, and the like, and the power source 22 that supplies power to each part And a timer 9 for measuring the measurement date.

  The RFID reader / writer 5 includes a CPU, a memory unit, and a transmission / reception unit. When the RFID card 8 enters the readable / writable area, the RFID reader / writer 5 transmits a radio signal from the transmission unit to the RFID card 8. The RFID card 8 rectifies and smoothes the received radio wave signal to generate drive power, reads the identification number from the storage unit, and transmits it to the RFID reader / writer 5 as a radio wave signal. In the RFID reader / writer 5, the reception unit receives the radio signal, demodulates it, and reads the identification signal.

  In addition, the RFID reader / writer 5 modulates the measured weight value and measurement date from the CPU 21, superimposes them on the radio signal, and transmits them to the RFID card 8. The RFID card 8 receives and demodulates the radio signal, and stores the weight value and the measurement date in the storage unit. Thereby, the weight value and the measurement date are written on the RFID card 8 by the RFID reader / writer 5.

  FIG. 5 is a diagram showing the storage configuration of the memory of the RFID card 8 of this embodiment, in which the measurement date is year, month, and day, each byte is 3 bytes in total, and the weight value is stored in 2 bytes. A total storage area of 5 bytes is allocated. Accordingly, when the storage capacity of the RFID card 8 is, for example, 32 bytes, the weight value for six times can be stored, and when the storage capacity is, for example, 4 kilobytes, the weight value for 800 times is stored. Can be memorized.

  FIG. 6 is a flowchart for explaining the operation of the weight scale 1 of this embodiment.

  The RFID reader / writer 5 reads data from the RFID card 8 by the user holding the RFID card 8 carried on the platform of the scale body 2 over the RFID reader / writer 5 of the scale 1. (Step S1), it is determined whether there is an empty area in the storage unit (Step S2), and when there is an empty area, the weight is measured (Step S3). When there is no empty area, the oldest data in the storage unit of the RFID card 8 is erased and the process proceeds to step S3 (step S4).

  When the weight is measured in step S3, the RFID reader / writer 5 writes the measured weight value and measurement date in the latest area of the storage unit of the RFID card 8 (step S4), and displays the weight value on the display unit 7. (Step S5), the process ends.

  In the measurement of the body weight, when the weight value detected by the weight sensor 19 falls within a predetermined change range in a predetermined time, that is, when the weight value is stabilized, the weight value is determined as the body weight value.

  In the case where the display unit 7 is a liquid crystal display unit capable of full graphic display, for example, the change in the body weight value due to a plurality of measurements is shown in FIG. 7 based on the user's key operation. May be displayed in a graph, or as a list as shown in FIG. Further, a printer may be connected to the weight scale 1 so that the weight value and its change can be printed.

  Further, as shown in FIG. 9, an RFID reader / writer 12 is connected to a personal computer 11 at home, information stored in the RFID card 8 is read out and stored in a hard disk of the personal computer 11, and information in the RFID card 8 is deleted. Accordingly, the storage area of the RFIDF card 8 may be increased. Moreover, based on the information taken into the personal computer 11, you may display a weight change on the display part of the personal computer 11 with a graph.

  As described above, each time a person carrying a personal RFID card measures the weight, the measured weight value and the measurement date are written and accumulated in the RFID card. The weight value written in the RFID card can be taken into the personal computer 11 at home via the RFID reader / writer 12 and displayed in a graph or the like, so that the weight change over a relatively long period measured at home or in various facilities Can be easily grasped and used for weight management.

  Moreover, since the user can accumulate the weight value and manage the weight by the personal RFID card 8 carried by the user of the facility, the facility only needs to install the scale 1.

(Other embodiments)
As another embodiment of the present invention, the RFID card 8 may be used as a locker key of a locker used in a facility. In this case, by writing data permitting the use of the locker at the front desk to the RFID card 8 when entering the facility, for example, the RFID card 8 is held over the RFID reader / writer provided in the locker to be locked or released. For this purpose, the locker can be locked or released by performing an operation.

  The weight scale of the present invention may be added with a function for measuring other biological information such as body fat percentage in addition to body weight.

  The present invention is useful as a weight scale.

1 Weight scale 4 Operation display section 5 RFID reader / writer 8 RFID card

Claims (5)

A weight scale that measures and displays the weight of a person to be measured on a platform,
A reading / writing unit that reads identification information of an individual RFID tag carried by the person to be measured who carries weight, and writes information to the RFID tag;
A control unit that controls the reading / writing unit to write the measured weight value to the RFID tag;
The RFID tag can be erased by the computer and stored in the computer through the reading / writing device controlled by the computer, including the weight value written in the RFID tag. is there,
A weight scale characterized by that. It has a timekeeping part that keeps time,
The control unit, along with the measured weight value, writes the date on which the weight acquired from the time measuring unit is measured, and writes the date to the RFID tag by controlling the reading / writing unit.
The weight scale according to claim 1. It has a display that displays the measured weight value,
The control unit reads the weight value written in the RFID tag by the reading / writing unit and displays it on the display unit.
The weight scale according to claim 1 or 2. The scale is installed in various facilities,
The RFID tag can be used as a locker key for the facility,
The weight scale according to any one of claims 1 to 3. A weight scale according to any one of claims 1 to 3,
An RFID tag that is dedicated to a person carried by a person to be measured for weight and whose identification information is read by the weight scale and in which the measured weight value is written;
The RFID tag can be erased by the computer and stored in the computer through the reading / writing device controlled by the computer, including the weight value written in the RFID tag. is there,
A scale system characterized by that.

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