KR200371076Y1 - Rfid addition measuring apparatus having means of measuring a figure board - Google Patents

Abstract

The present invention relates to a meter for reading a number plate using an RFID reader, and more particularly, to an RFID meter including a number plate reading device displayed by a digital code.

Meter according to the present invention, the number plate including one or more cylindrical numeral members The cylindrical numeric member comprises a decimal number, measuring the numerical value of the data and adjusting the numerical value of the cylindrical numeric member of the numeric plate in relation to the measured numerical value. A weighing module, an RFID tag reading module positioned around the cylindrical numeric member, for reading a current measured value of the cylindrical numeric member, and a transmitting module for transmitting the read measured value to the RFID reader.

Description

RFID integration meter with number plate reading device {RFID ADDITION MEASURING APPARATUS HAVING MEANS OF MEASURING A FIGURE BOARD}

The present invention relates to a meter for reading a number plate using an RFID reader, and more particularly, to an RFID meter including a number plate reading device displayed by a digital code.

In general, a meter is a device that measures length, weight, time, and other physical quantity based on each selected weighing unit, and uses a property of a substance to change the magnitude or change of a physical quantity, for example, a rotation angle. , Converted into proportional length, or electric pulse, etc. and displayed as scale or number. Such a meter is installed in each household, and can read the value of the predetermined physical quantity measured from the meter to pay the fee for use corresponding to the value. Therefore, it is necessary to be able to accurately read the numerical value of the physical quantity used through the numeric keypad or scale of the meter.

1 is a view schematically showing the configuration of the number plate of the meter according to the prior art.

As shown in Fig. 1, the number plate of the meter is composed of one or more cylindrical numeric members including decimal numbers, and the cylindrical numeric members rotate in accordance with a change in a predetermined physical quantity to display the numbers associated with the corresponding physical quantities. Do it.

As described above, in the conventional meter reading method, a meter reading meter that reads the meter at a predetermined time period reads the number displayed on the number plate of the meter with the naked eye. However, in this case, since only the number plate can be read, the meter reader must read the number plate of all the meters one by one, and there is a problem in that a lot of time and effort of the meter is required because the meter should be memorized and stored. In addition, there is a problem that an error such as incorrect reading of the number plate or incorrect reading of the number plate may occur in the process of the meter reading meter.

In addition, meters are commonly used to measure the amount of water used or electricity. In this case, the meter must be supplied with electricity to measure usage. Therefore, the damage of the meter due to leakage or short circuit occurs frequently.

In order to solve the above problems, a remote metering method using a Code Division Multiple Access (CDMA) communication module has been recently used. However, the remote meter reading method of the meter includes a problem that it is not applicable to all meters, but can be applied only to some large scale meters. In addition, there is a problem that the unit price of the meter can be applied to all the meters because the unit price of the meter that can be remote meter is relatively expensive compared to the unit price of the general meter.

In addition, the meter reading method may not be the same as the result of the meter reading with the naked eye and the meter reading using the remote meter reading. For example, when the value displayed on the meter after the use of a given water meter in August is '7845', and the value displayed on the meter after the use in September is '7945', the frequency of water used during the month becomes 100. In the above case, the numerical value that can be checked through the meter is '7945', but the information read through the remote meter becomes a value stored in a predetermined meter register means instead of the naked eye reading, so the difference value '100' may be the same. Meter readings may differ from those observed with the naked eye. Therefore, there is a problem that the value may not be the same when checking the meter with the naked eye and when checking through the meter reading.

Therefore, the emergence of a meter that can solve the above problems is requested.

The present invention has been made to improve the prior art as described above, and an object of the present invention is to provide an RFID meter including a numeric reading device including a bit of the BCD.

In addition, the meter according to the present invention is intended to have the same content of the numerical value of the numeric value to be read with the naked eye and the numerical value of the numerical value to be confirmed by the reader.

In addition, the meter according to the present invention is to reduce the cost required to improve the meter performance by enabling the reading of the number plate by simply replacing the cylindrical number member included in the existing meter.

In addition, the meter according to the present invention aims to minimize the time to read the meter.

In addition, the meter according to the present invention is to enable the meter reading using a reader to minimize the error of meter reading.

In addition, the meter according to the present invention is intended to prevent damage to the meter due to leakage or leakage by operating in a non-powered manner.

1 is a view schematically showing the configuration of the number plate of the meter according to the prior art.

2 is a view schematically showing a configuration of a meter reading system including a meter according to the present invention.

3a and 3b is a view showing the configuration of a meter according to an embodiment of the present invention.

Figures 4a and 4b is a side view showing the configuration of the cylindrical numeral member and the bit display portion according to the present invention.

5A and 5B are views illustrating the operation of the cylindrical numeral member and the bit detection module according to the present invention.

5C is a view showing an example in which the cylindrical numeral member and the probe means included in the bit detection module according to the present invention are contacted.

<Explanation of symbols for the main parts of the drawings>

300: meter

310: number plate

320: weighing module

330: bit detection module

340: RFID tag reading module

350: transmission module

According to a preferred embodiment of the present invention for achieving the above objects of the present invention, the meter includes a number plate comprising one or more cylindrical number members.-The cylindrical numeric member comprises a decimal number-measuring the numerical value of the data and adjusting the numerical value of the cylindrical numeric member of the numeric plate in relation to the measured numerical value. A weighing module, an RFID tag reading module positioned around the cylindrical numeric member, for reading a current measured value of the cylindrical numeric member, and a transmitting module for transmitting the read measured value to the RFID reader.

In particular, the meter according to the present invention includes a numeric reading device including a bit of a BDC or binary code, and by reading the meter using RFID, it is possible to enable a fast, accurate meter reading.

** Organization of terms used in this specification **

1) Cylindrical number member

As used herein, the term cylindrical numeral member refers to a cylindrical device which is located on the numeric keypad of a general meter and rotates a cylinder to display numerals. Each cylindrical numeral member included in the numeric keypad is associated with each other to represent a numeral. .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The scope of the present invention is not limited or limited by the following embodiments described herein.

2 is a view schematically showing a configuration of a meter reading system including a meter according to the present invention.

As shown in FIG. 2, a configuration for operating a meter including a meter number reading device according to the present invention includes a meter 200, a reader 210 for reading numerical information read from the meter 200, and a reader ( The host computer 220 may manage the numerical information read from 210.

The meter 200 is a device that measures a length, weight, time, or other physical quantity based on a selected measurement unit, and measures a predetermined physical quantity to display the changed data value when the numerical value of the data changes. When the transmission request for the measured value is received from the reader 210, the measured numerical information is transmitted to the reader 210. The measured data value can be measured by integrating for a predetermined period (for example, one month).

The meter 200 according to the present invention receives an RF signal from the reader 210 and a predetermined wire (antenna) for obtaining an induced electromotive force and an RFID for transmitting the measured value read from the meter 200 to the reader 200. It may be configured to include a chip 201. According to the present embodiment, as will be appreciated by those skilled in the art, the RFID chip 210 transmits the measured value read by the meter 200 to the reader 200, and together with the measured value, information about the meter 200 (billing). It is also possible to send together relevant information, the meter manufacturer, etc.).

The number plate reading method in the meter according to the present invention includes a bit in which the digital number is represented in the cylindrical number member, which is a method of reading the meter number plate by detecting the rotation position of the number described in the cylindrical number member included in the meter. For example, a method of detecting the bit and reading the measured number may be used.

As another example of a method for reading a number plate in a meter according to the present invention, the method for reading a meter number plate of Korean Patent Application No. 10-2004-0017989 may be used. In the numerical plate reading method of the above application, each numeric plate of the integrating meter is operatively connected to the rotating plate so as to rotate in coordination with the rotation of the rotating plate, and each numeric plate has an index portion on which the numbers are printed, The display unit is encoded to digitally recognize the number corresponding to the number printed on the index unit, and reads each display unit to read the meter.

In the present embodiment, for convenience of description, the case of the method of reading the meter number plate by detecting the rotational position of the number described above will be described as an example.

The reader 210 is a terminal device for reading numerical information of predetermined data measured from the meter 200, and an RF wireless reader may be used. When the reader 210 is located at a predetermined position away from the meter, the measured data numerical information is transmitted to the reader 210, and the data numerical information stored in the reader 210 can be transmitted to the host computer 220 for management. have.

The host computer 220 is a computer that collects the information read by the reader 210 and manages the meter 200 and the use of the meter. The host computer 220 is based on the information collected from the reader 210. Alternatively, the fee for use such as water charges can be calculated and managed.

3A is a diagram illustrating an internal configuration of a meter according to an embodiment of the present invention.

As shown in FIG. 3A, the meter 300 according to the present invention includes a numeric keypad 310, a weighing module 320, a bit detection module 330, an RFID tag reading module 340, and a transmission module 350. The numeric keypad includes a cylindrical numeric member 311. Hereinafter, the function of each component is explained in full detail.

The weighing module 320 measures the numerical value of the corresponding data, and controls the numerical value of the cylindrical numerical member in association with the measured numerical value so that the numerical value appears on the number plate.

Numeric plate 310 includes one or more cylindrical numeric members 311, and displays the cumulative number associated with the data value measured from the weighing module 320. The display of the numerical value can be represented by rotating the cylindrical numeral member.

The cylindrical numeral member 311 is displayed with a decimal number, and includes a bit display unit (not shown) for displaying a bit corresponding to the decimal number on the side. The number plate of the meter consists of one or more cylindrical number members, and the number plate allows numerical measurements with the naked eye. The number plate according to the present invention may include one or more cylindrical number members.

Hereinafter, an example of a number plate including four cylindrical number members (except a number member having one unit or less) used in a general meter such as water or gas will be described. When the number plate includes four cylindrical numeral members 311, numerical information in units of cloth (1000), bag (100), ten (10), and one (1), respectively, includes numbers from 0 to 9. Doing. When the cylindrical number member of the place of one (1) indicates '9', when it is rotated, the number of the place of one (1) becomes '0' and the cylindrical number member of the ten (10) place rotates and increases. Can represent the numeric value of the data. As the numerical information of the data is changed, the cylindrical numeric member may rotate to integrate and display the changed numerical information.

The bit display portion represents a bit corresponding to the decimal number of the cylindrical numeric member 310, which bit includes a predetermined copper foil means that can be composed of a digital code. The digital code may be represented using a code using Binary Coded Decimal (BCD) or a binary code. Binary Coded Decimal (BCD) represents a decimal number as a four-digit binary number. When BCD represents a decimal number displayed on a cylindrical number member 310, decimal 0 is 0000 and decimal 1 is 0001. , Decimal 2 may be represented by 0010 and decimal 9 by 1001.

4A is a side view illustrating a configuration of a numeric member and a bit display unit according to an exemplary embodiment of the present invention.

As shown in FIG. 4A, the cylindrical number member 410 includes the numbers from 0 to 9 in the rotational direction in the cylindrical number member 410 in turn, and each bit is displayed by the bit display unit 420. The bit corresponding to the decimal number is displayed. Referring to FIG. 4A, the numbers without parentheses in the written numbers mean the human-readable numbers displayed on the cylindrical number members 410, and the numbers in parentheses indicate the bit values located on the sides of the cylindrical number members as decimal numbers. It is displayed. According to one embodiment of the invention, the bit display unit 420 is composed of four lines inside the cylindrical number member, the copper foil is wound around the four lines in accordance with the notation of the BCD code of the corresponding number 0 or 1 Bit can be displayed. The innermost line 421 of the four lines is 2 ⁰ = 1, the next line 422 is 2 ¹ = 2, the next line 423 is 2 ² = 4, and the next line 424 Represents 2 ³ = 8, and the portion where the copper foil is wound represents a '1' bit, and the portion where the copper foil is not wound represents a '0' bit. For example, if the decimal number 0 is represented as BCD, it is' 0000 ', so if one of the four lines does not detect copper foil, it can be represented as'0000'.If the decimal number 9 is represented as BCD, it is'1001', The line 421 and the outermost line 424 of the wound around the copper foil '1' can be expressed as '1001'.

In addition, according to another embodiment of the present invention, the design of the digital code for the decimal number representation from 0 to 9 may vary depending on the position of the bit detection module. For example, a code of a specific code '0000' or '1111' of a BDC is used as a code for error detection, and each number from 0 to 9 is left except for the specific code '0000' or '1111'. The code can be selected by the system designer using the code. In other words, it is possible to design and use the code '0010' instead of '0000' to represent the decimal number 0. The error detection may be performed when an error occurs in reading the numeric display meter, for example, when an error occurs in the copper foil wrapped around the bit display part, and thus the number reading is not possible, or an error occurs in the copper foil part of the bit display part. This may be performed when the number reading is not possible, and '0000' or '1111' may be used as a code for detecting such an error. If an error occurs in the meter according to the present invention due to various reasons such as deterioration of the copper foil, the corresponding code may be detected.

All 10 numbers are included in this cylindrical number member, and the portion of the cylindrical number member is displayed on the numeric plate of the meter and the part in contact with the bit detection module as shown in Figure 3, the cylindrical number member Sometimes this is not the same part as the number shown. For example, if '1' is displayed on the meter number plate, the side of the cylindrical numeral member on which the number 6 located at a different portion from the one of the cylindrical numeral member may be contacted with the bit detection module to detect the corresponding bit value. Therefore, in order for the number displayed on the number plate and the number detected in contact with the bit detection to correspond to each other, the side of the cylindrical number member must include a bit corresponding to the visually observable number according to the reading position of the bit detection module. For example, the number corresponding to the cylindrical number member to which the bit detection module is in contact is '0', but the number that can be observed by the naked eye in the cylindrical number member is '5', so that the side of the cylindrical number member where the number '0' is located is located. There may be a copper foil indicating a bit corresponding to the number '5'. According to the above example, all numbers correspond to each other in pairs of '0-5', '1-6', '2-7', '3-8', and '4-9', so that the corresponding bits The copper foil to be displayed may be located on one side of the cylindrical numeral member. The number pairs, such as '0-5', shown in FIG. 4A are shown for illustrative purposes, and as well as pairs with numbers in corresponding positions 180 degrees apart according to the designer's change of the cylindrical number member according to the present invention, Pairs with numbers of corresponding positions at an angle are also possible. This is because the design can be flexibly changed according to the physical position (relative position with the cylindrical numeric member) of the probe means included in the bit detection module.

4B is a side view illustrating a configuration of a number member and a bit display unit according to still another embodiment of the present invention.

Referring to FIG. 4B, according to another embodiment of the present invention, the copper foil displaying bits may be positioned using the BCD code method described with reference to FIG. 4A. In other words, although the bits are displayed by winding the copper foil of the bit display unit, the position of the copper foil may be appropriately adjusted according to the physical position of the bit detection module 330, which may be constituted by one or more bit probe means. For example, it is possible to design the position in which the copper foil is wound around the display portion of the four portions 425, 426, 427, 428 displaying the bits in various ways depending on the physical position of the probe means. In the present embodiment, the corresponding number recorded in the cylindrical numeral member may vary according to the position of the bit detection module, and the copper foil position of the bit display part may vary depending on the position of the probe means for reading the unit bits included in the bit detection module. The arrangement can be adjusted appropriately. Referring to FIG. 4B, the copper foils are arranged spaced apart by a predetermined angle (change angle depending on the structure) according to the position of the probe means.

Next, the bit detection module 330 is positioned around the cylindrical numeral member 311 and is in contact with the bit display unit. In addition, the bit detection module 330 corresponds to the number of cylindrical numeral members 311 and contacts the copper foil means displayed on the side of each cylindrical numeral member 311 to detect the bit string corresponding to the copper foil means. Perform the function.

Hereinafter, the cylindrical numeral member and the bit detection module will be described in detail with reference to FIGS. 5A to 5C.

5A is a diagram illustrating operations of the numeric member and the bit detection module according to an embodiment of the present invention.

As shown in FIG. 5A, the bit detection module 510 is in contact with a bit display unit located on the side of the cylindrical numeral member 340. The bit detection module 510 includes one or more probes 520 for detecting a bit string represented by the copper foil of the bit display unit, and the probes 520 are respectively in contact with the bit display unit to detect the corresponding bit. . In other words, similar to the operation of the switch, if there is a part in contact with the probe 520 (copper part), it is detected as bit '1', and if there is no part in contact (part without copper), it is detected as bit '0'. can do. For example, if only the first probe is in contact with the probe 520 of the bit detection module 510 and the remaining probes are not in contact, the bit of the BCD may be detected as '0001'. That is, since the decimal number is '1', the number of the cylindrical numeral member currently displayed on the number plate of the meter may be determined as '1'. That is, since the position of the numeric member contacted by the bit detection module 510 is 6 but the BCD bit contacted is '0001', the value of '0001' can be detected. For this detection, the copper foil located on the side of each cylindrical numeral member may be implemented to be grounded around the cylindrical numeral member.

5B is a view showing an example of a numeric plate including a cylindrical numeral member and a bit detection module according to the present invention.

As shown in FIG. 5B, the number plate according to the present invention further includes a bit display unit and a bit detection module 510 in comparison with a conventional number plate (see FIG. 1). As described above, since the bit display unit and the bit detection module 510 are included, the reading value of the number plate to be visually checked and the meter reading value of the number plate using the reader can be detected in the same manner.

5C is a view showing an example in which the cylindrical numeral member and the probe means included in the bit detection module according to the present invention are contacted.

As shown in FIG. 5C, the operation of the probe of the bit detection module in contact with the numeric member may vary according to the shape of the cylindrical numeric member. When the plate of the cylindrical numeral member is narrow (530), the distance between the probe and the cylindrical numeral member is relatively short, and when the plate of the cylindrical numeral member is wide (540), the distance between the probe and the cylindrical numeral member may be relatively long. have.

Referring again to FIG. 3A, the FRID tag reading module 340 reads the bits detected by the probe means of the bit detection module 330. It is possible to read the bits detected in each bit detection module 330 and transmit them to the predetermined reader means via the transmission module 350. For example, when each bit detected by the four bit detection modules 330 is '0001', '0010', '0000', or '1000', each number read as a decimal number is '1'. , '2', '0' and '8', so the total number read is '1208'. Therefore, the information transmitted from the transmission module 350 to the reader becomes '1208'. In addition, the RFID tag reading module 340 may operate to detect an error detection and normality of the read bit. As described above, according to the implementation, a specific bit string 0000 or 1111 may be designated as an error code, and when the bit string read by the RFID tag reading module 340 is an error code, the meter has an error or a bit display unit. It is possible to determine that deterioration has occurred in the copper foil means of and to control the re-reading.

Finally, the transmission module 350 transmits the binary code read by the RFID tag reading module 340 to a predetermined reader.

Figure 3b is a view showing the external configuration of the meter according to the present invention.

As shown in FIG. 3B, an outside of the meter may include a reader reading plate 360 for communication with the reader. When a predetermined detection request is generated from the outside, for example, when the RFID reader is located within a predetermined distance from the reader reader plate 360 of the meter or the RFID reader is in contact with the reader reader plate 360 of the meter. The binary code read by the reading module 340 may be transmitted to the reader. The reader reader plate 360 may be implemented such that a wire as shown in FIG. 2 is positioned around the reader plate to obtain a predetermined power through an RF signal received from the reader means. In addition, when transmitting the numerical information read by the transmission module 350 to the RFID reader may be applied in consideration of the transmission status of the frequency of the RFID standards 18000-1 to 18000-7.

Hereinafter, the RFID (Radio Frequency Identification) used in the present invention will be briefly described.

RFID stands for radio frequency identification technology and RFID refers to a method of identifying an individual product using frequency. Compared to RFID, barcodes require the laser reader to be in direct contact with the barcode, but RFID requires only an antenna and a tag to easily identify product information and insert necessary information without having to touch the reader directly. The RFID component may include an RFID tag that can store data, a reader that can read data in the RFID, and an antenna that transmits data in the middle. In addition, RFID is used in various fields such as inventory management of goods, container / pallet / box management, automatic inspection, incoming and outgoing management for error prevention, automatic sorting, rental product management, counterfeit identification, and theft prevention. In the future, it will be the basic technology of the home network.

The advantages of the RFID tag, which is a component of RFID and used in the present invention, are less prone to damage than barcodes, and can simultaneously read multiple tags at high speed, and can be read without the reader directly accessing the tag. Do. In addition, even if there is an obstacle between the tag and the reader, it is readable, can be read and written, and can be reused.

As described above, the present invention has been described with reference to a preferred embodiment of the present invention, but those skilled in the art various modifications and changes of the present invention without departing from the spirit and scope of the present invention described in the claims below I can understand that you can.

According to the present invention, it is possible to provide an RFID meter including a numeric reading device including bits of a BCD.

According to the meter according to the present invention, it is possible to have the numerical information of the numeric value to be read with the naked eye and the numerical value of the numerical value to be confirmed by the reader to have the same content.

In addition, according to the meter according to the present invention, it is possible to reduce the cost required to improve the performance of the meter by enabling the reading of the number plate by simply replacing the cylindrical number member included in the existing meter.

In addition, according to the meter according to the present invention, it is possible to minimize the time to read the meter.

In addition, according to the meter according to the present invention, it is possible to minimize the error of meter reading by enabling the meter reading using a reader.

In addition, according to the meter according to the present invention, it is possible to operate in a non-powered manner to prevent damage to the meter due to leakage or leakage.

Claims (6)

In the meter for reading the number plate using an RFID reader, Indicia comprising at least one cylindrical member number - number also the cylindrical member comprises a decimal number; Measure the numerical value of the data, and adjust the number of cylindrical numerical members of the number plate in relation to the measured value. Weighing module; An RFID tag reading module positioned around the cylindrical numeric member and reading a current measurement value of the cylindrical numeric member; And A transmission module for transmitting the read measured value to the RFID reader Meter comprising a. The method of claim 1, The cylindrical numeral member includes a bit display unit on which a digital code for displaying the decimal number is displayed. And a bit detection module for contacting the bit display unit to detect the digital code corresponding to the decimal number displayed by the cylindrical numeral member. The method of claim 2, The bit is characterized in that the binary coded binary (BCD) or binary code (Binary Code). The method of claim 3, And all bits of the BCD or the binary code are '0' or '1' as an error code. The method of claim 2, The bit detection module is located on one side of the cylindrical number member corresponding to the number of the cylindrical number member. The method of claim 1, And the transmitting module transmits the read number to the RFID reader when the RFID reader is located within a predetermined distance from the meter.