WO2021029600A1 - Dispositif de lecture de compteur et procédé de commande de dispositif de lecture de compteur - Google Patents

Dispositif de lecture de compteur et procédé de commande de dispositif de lecture de compteur Download PDF

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Publication number
WO2021029600A1
WO2021029600A1 PCT/KR2020/010362 KR2020010362W WO2021029600A1 WO 2021029600 A1 WO2021029600 A1 WO 2021029600A1 KR 2020010362 W KR2020010362 W KR 2020010362W WO 2021029600 A1 WO2021029600 A1 WO 2021029600A1
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WIPO (PCT)
Prior art keywords
pulse signal
lead switch
lead
switch
state conversion
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Application number
PCT/KR2020/010362
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English (en)
Korean (ko)
Inventor
김대현
Original Assignee
엘지이노텍 주식회사
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Priority claimed from KR1020190097829A external-priority patent/KR20210017923A/ko
Priority claimed from KR1020190097828A external-priority patent/KR20210017922A/ko
Application filed by 엘지이노텍 주식회사 filed Critical 엘지이노텍 주식회사
Publication of WO2021029600A1 publication Critical patent/WO2021029600A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/25—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts
    • G01D5/251—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts one conductor or channel
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06—Indicating or recording devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/16—Electric signal transmission systems in which transmission is by pulses
    • G08C19/22—Electric signal transmission systems in which transmission is by pulses by varying the duration of individual pulses

Definitions

  • the present invention relates to a meter reader and a control method of the meter reader, and more particularly, to a meter reader that accurately detects the rotation direction of a rotating plate using pulse values generated by a plurality of reed switches, and a technology for controlling the meter reader. .
  • integrated watt-hour meters are widely used to detect power used in homes as well as industries in real time and to accumulate the amount of power used. And the like, and the number of rotations of the disk rotating according to the amount of current used can be mechanically counted and displayed as an accumulated power amount.
  • a general meter for use in wireless meter reading (OMR) by improving a meter with such a mechanical structure when using 1Kwh, a magnet is installed on a part of the display rotating plate of the metering display device that rotates 1, and is displayed with a reed switch. It is designed to electronically measure power consumption by generating a pulse signal according to the number of rotations of the rotating plate and counting it by Micom.
  • a reed switch As shown in FIG. 1, has a built-in'S' pole 20 of a magnet at the lower end of a meter reader case 10 including a reed switch formed in a'c' shape, and the reed switch case 10 ) At the top, it is formed in a vacuum state or by inserting magnetic leads from both sides of a gas-sealed glass tube.
  • the N-pole and S-pole magnets 20 in the reed switch are in a bonded state (conducting state).
  • the terminals of the S-pole and N-pole contacts in the reed switch 30 are opened by their own elastic force, and are converted into a non-conductive state.
  • the present invention is an invention devised to solve the problems of the prior art as described above, and is to provide a meter reader including a reed switch capable of accurately detecting an operating direction of a rotating plate using a plurality of reed switches. to be.
  • a state conversion value is generated based on the pulse signal generated by the reed switch, and then direction is determined based on the generated state conversion value to determine whether the rotating plate is rotating in the forward direction or in the reverse direction. It is to provide a possible meter reader.
  • the meter reader according to the first embodiment is generated due to the interaction between a rotating plate, a magnet disposed on one surface of the rotating plate, a first lead switch and a second lead switch, and the first and second lead switches and the magnet.
  • the rotation direction of the rotating plate may be determined based on the generated state conversion value.
  • the controller may add up the state conversion values for the first and second lead switches over time, respectively, and then determine a rotation direction of the rotating plate based on a direction of the summed values.
  • the first lead switch and the second lead switch are disposed within a first distance, and the first distance is a period of a high pulse signal by the first lead switch and a high pulse by the second lead switch. It may be a distance arranged so that at least some of the sections of the signal overlap.
  • the control unit When the pulse signal of the first lead switch is high, the control unit has a state conversion value of A, and when the pulse signal of the second lead switch is high, the state conversion value is B, When the pulse signal of the first and second lead switches is low, the state conversion value is converted to C, and then the rotation plate is rotated based on the sum of A, B and C (X). You can judge the direction.
  • A may be 2 and B may be 1, or A may be 1 and B may be 2.
  • the control unit determines that the rotating plate is operating in a forward direction when the X changes in a predetermined order, and determines that the rotating plate is operating in a reverse direction when the X changes in a direction opposite to the predetermined order. I can.
  • the rotating plate When it is determined that the X has moved in the forward direction a predetermined number of times, the rotating plate is determined to have rotated one in the forward direction, and when it is determined that the X has moved in the reverse direction by a predetermined number of times, the rotating plate is reversed. It can be judged as one round.
  • the first and second lead switches are disposed beyond a second distance, and the second distance is a period of a high pulse signal by the first lead switch and a high pulse signal by the second lead switch. ) It may be a distance arranged so that there is no section where the section of the pulse signal overlaps.
  • the control unit when the pulse signal of the first lead switch is high (High), the state conversion value is A, when the pulse signal of the second lead switch is high (High), the state conversion value is B, When the pulse signal of the first lead switch and the second lead switch is low and the state of the pulse signal of the first lead switch is changed, the state conversion value is C, and the pulse signal of the second lead switch is When the state is changed, the state conversion value is converted to D, and the rotation direction of the rotating plate may be determined based on the sum of A, B, C, and D (Y).
  • C is 0, the absolute value of A and the absolute value of B have different values, and the absolute value of D may be a real number greater than the sum of the absolute value of A and the absolute value of B.
  • the A may be 2 and B may be 1, or the A may be 1 and B may be 2 and D may be 4.
  • the control unit determines that the rotating plate is operating in a forward direction when the Y changes in a predetermined order, and determines that the rotating plate is operating in a reverse direction when the Y changes in a direction opposite to the predetermined order. I can.
  • the control unit determines that the rotating plate has rotated one in the forward direction, and when it is determined that the Y has moved in the reverse direction by a predetermined number of times, the rotating plate is reversed. It can be judged as one round.
  • a state conversion value is determined based on a state of a pulse signal generated by an interaction between a first and second lead switch and a magnet coupled to a rotating plate. Calculating each reed switch, summing the state conversion values for the first and second lead switches over time, and determining the rotation direction of the rotating plate based on the direction of the summed values. have.
  • the first lead switch and the second lead switch are disposed within a first distance, and the first distance is a period of a high pulse signal by the first lead switch and a high pulse by the second lead switch. It may be a distance arranged so that at least some of the sections of the signal overlap.
  • the determining of the rotation direction of the rotating plate includes a state conversion value of A when the pulse signal of the first lead switch is high, and a state conversion value of A when the pulse signal of the second lead switch is high.
  • the converted value is B, and when the pulse signal of the first and second lead switches is low, the state conversion value is converted to C, and the sum of the A, B and C values (X) is Based on the rotation direction of the rotating plate can be determined.
  • the A, B, and C are real numbers having different values
  • C is 0, and the absolute value of A and the absolute value of B may be real numbers having different values.
  • the determining of the rotation direction of the rotating plate includes determining that the rotating plate is operating in a forward direction when the X changes in a predetermined order, and when the X changes in a direction opposite to the predetermined order, the rotating plate is reversed. It can be determined that it is operating.
  • the first and second lead switches are disposed beyond a second distance, and the second distance is a period of a high pulse signal by the first lead switch and a high pulse signal by the second lead switch. ) It may be a distance in which there is no section where the section of the pulse signal overlaps.
  • the determining of the rotation direction of the rotating plate includes a state conversion value of A when the pulse signal of the first lead switch is high, and a pulse signal of the second lead switch is high.
  • the state conversion value is B
  • the state conversion value is C when the pulse signal of the first and second lead switches is Low and the state of the pulse signal of the first lead switch is changed
  • the second When the state of the pulse signal of the reed switch is changed, the state conversion value is converted to D, and then the rotation direction of the rotating plate may be determined based on the sum of A, B, C, and D (Y).
  • C is 0, the absolute value of A and the absolute value of B have different values, and the absolute value of D may be a real number greater than the sum of the absolute value of A and the absolute value of B.
  • the determining of the rotational direction of the rotating plate is that when it is determined that the Y has moved in the forward direction by a predetermined number of times, it is determined that the rotating plate has rotated in the forward direction by one, and that the Y has moved in the reverse direction by a predetermined number of times. If determined, it can be determined that the rotating plate has rotated one rotation in the reverse direction.
  • the meter reader according to the second embodiment is generated due to the interaction between the rotating plate, the magnet disposed on one side of the rotating plate, the first and second lead switches, the first and second lead switches, and the magnet.
  • a control unit for determining whether the first lead switch and the second lead switch malfunction based on the generated state conversion value.
  • the control unit after summing the state conversion values for the first and second lead switches over time, respectively, whether the first lead switch and the second lead switch malfunction based on the direction of the summed value Can judge.
  • the first lead switch and the second lead switch are disposed within a first distance, and the first distance is a period of a high pulse signal by the first lead switch and a high pulse by the second lead switch. It may be a distance arranged so that at least some of the sections of the signal overlap.
  • the control unit sets a state conversion value to A, and when the pulse signal of the second lead switch is high, the state conversion value is B, When the pulse signal of the first and second lead switches is low, the state conversion value is converted to C, and then the first lead is based on the sum of A, B, and C (X). It is possible to determine whether the switch and the second lead switch malfunction.
  • C is 0, and the absolute value of A may be a real number having a value smaller than the absolute value of B.
  • the controller may determine that one of the first lead switch and the second lead switch has failed when the value of X is continuously repeated as two values.
  • the control unit determines that the second lead switch has failed when the difference between the absolute values of the two values is the same as A, and when the difference between the absolute values of the two values is the same as the B, the first lead switch Can be judged to be broken.
  • the first and second lead switches are disposed beyond a second distance, and the second distance is a period of a high pulse signal by the first lead switch and a high pulse signal by the second lead switch. ) It can be arranged so that there is no section where the section of the pulse signal overlaps.
  • the control unit when the pulse signal of the first lead switch is high (High), the state conversion value is A, when the pulse signal of the second lead switch is high (High), the state conversion value is B, When the pulse signal of the first lead switch and the second lead switch is low and the state of the pulse signal of the first lead switch is changed, the state conversion value is C, and the pulse signal of the second lead switch is When the state is changed, the state conversion value is set to D, and the presence or absence of a malfunction of the first and second lead switches may be determined based on the sum of A, B, C, and D (Y).
  • C is 0, the absolute values of A, B and D have different values, and the absolute value of D may be a real number greater than the sum of the absolute value of A and the absolute value of B.
  • the controller may determine that one of the first lead switch and the second lead switch has failed when the value of Y is continuously repeated as two values.
  • the control unit determines that the second lead switch has failed when the difference between the absolute values of the two values is the same as A, and when the difference between the absolute values of the two values is the same as the B, the first lead switch Can be judged to be broken.
  • the meter may further include at least one of a display unit for externally displaying information on a current state of the reed switch and a communication unit for notifying a user when it is determined that the reed switch has failed.
  • the controller may control the operation of the meter reader based on a normally operated reed switch.
  • a state conversion value based on a state of a pulse signal generated by an interaction between a first and second lead switch coupled to a rotating plate and a magnet is converted into the plurality of reed switches. Calculating each, summing the state conversion values for the first and second lead switches over time, and the first and second lead switches of the rotating plate based on the directionality of the summed values. It may include determining whether the reed switch malfunctions.
  • the first lead switch and the second lead switch are disposed within a first distance, and the first distance is a period of a high pulse signal by the first lead switch and a high pulse by the second lead switch. It may be a distance arranged so that at least some of the sections of the signal overlap.
  • the step of determining whether the first lead switch and the second lead switch malfunction or not may include a state conversion value of A when the pulse signal of the first lead switch is high, and the pulse signal of the second lead switch.
  • the state conversion value is B
  • the pulse signals of the first and second lead switches are low
  • the state conversion value is converted to C, and then A, B And determining based on the sum of C (X), wherein C is 0, and the absolute value of A may have a value smaller than the absolute value of B.
  • the determining whether the first and second lead switches are malfunctioning may include determining that one of the first and second lead switches has failed when the value of X is continuously repeated as two values. It may include.
  • the step of determining whether the first lead switch and the second lead switch malfunction or not may include determining that the first lead switch has failed when a difference between the absolute values of the two values is the same as A, and If the difference in absolute value is the same as B, determining that the second lead switch has failed.
  • the first lead switch and the second lead switch are disposed beyond a second distance, and the second distance is a high pulse signal generated by the first lead switch. It may be a distance arranged so that there is no section in which the section and the section of the high pulse signal by the second lead switch overlap.
  • the step of determining whether the first lead switch and the second lead switch are malfunctioning is a state conversion value of A when the pulse signal of the first lead switch is High, and the pulse signal of the second lead switch is When the state is high, the state conversion value is B, and when the pulse signal of the first and second lead switches is Low and the state of the pulse signal of the first lead switch is changed
  • the value is C, and if the state of the pulse signal of the second lead switch is changed, the state conversion value is set to D, and whether the reed switch malfunctions based on the sum of A, B, C and D (Y).
  • the determining whether the first and second lead switches are malfunctioning may include determining that one of the first and second lead switches has failed when the Y value is continuously repeated as two values. It may include.
  • the determining whether the first lead switch and the second lead switch malfunction or not may include determining that the first lead switch has failed when the absolute difference between the two values is the same as that of B, and When the difference between the absolute values is the same as A, determining that the second lead switch has failed.
  • FIG. 1 is a view showing a part of a cross-sectional view of a meter reader including a reed switch according to an embodiment.
  • FIG. 2 is a diagram illustrating an example of a wireless meter reading meter to which a meter reader including a reed switch according to an embodiment can be applied.
  • 3 is a diagram for explaining a pulse signal generated by one reed switch.
  • FIG. 4 is a view for explaining a method of determining the rotation direction and the number of rotations of a rotating plate using one reed switch.
  • FIG. 5 is a diagram illustrating a pulse signal generated by an interaction between a magnet, a first lead switch, and a second lead switch, according to an exemplary embodiment.
  • FIG. 6 is a diagram illustrating a state conversion value generated based on a pulse signal generated by an interaction between a magnet, a first lead switch, and a second lead switch, according to an exemplary embodiment.
  • FIG. 7 is a diagram illustrating forward and reverse directions of state conversion values generated based on a pulse signal, according to an exemplary embodiment.
  • FIG. 8 is a diagram illustrating a pulse signal generated by an interaction between a magnet and a first lead switch and a second lead switch according to another embodiment.
  • FIG. 9 is a diagram illustrating a state conversion value generated based on a pulse signal generated by an interaction between a magnet, a first lead switch, and a second lead switch, according to another embodiment.
  • FIG. 10 is a diagram illustrating a forward direction and a reverse direction of a state conversion value generated based on a pulse signal, according to another embodiment.
  • FIG. 11 is a diagram illustrating a state conversion value generated based on a pulse signal when a first lead switch fails in a high state.
  • FIG. 12 is a diagram illustrating a state conversion value generated based on a pulse signal when a first lead switch fails in a low state.
  • FIG. 13 is a diagram illustrating a state conversion value generated based on a pulse signal when a second lead switch fails in a high state.
  • FIG. 14 is a diagram illustrating a state conversion value generated based on a pulse signal when a second lead switch fails in a low state.
  • 15 is a diagram for explaining a method of determining whether a reed switch has failed, according to an exemplary embodiment.
  • 16 is a diagram illustrating a state conversion value generated based on a pulse signal when a first lead switch fails in a high state.
  • FIG. 17 is a diagram illustrating a state conversion value generated based on a pulse signal when a first lead switch fails in a low state.
  • FIG. 18 is a diagram illustrating a state conversion value generated based on a pulse signal when a second lead switch fails in a high state.
  • FIG. 19 is a diagram illustrating a state conversion value generated based on a pulse signal when a second lead switch fails in a low state.
  • 20 is a diagram for explaining a method of determining whether a reed switch has failed, according to another exemplary embodiment.
  • 21 is a diagram illustrating some components of a meter reader including a reed switch according to an embodiment.
  • FIG. 22 is a flowchart illustrating a method of controlling a meter reader including a reed switch according to an exemplary embodiment.
  • FIG. 2 is a diagram illustrating an example of a wireless meter reading meter 10 to which the meter reader 100 including a reed switch according to an embodiment can be applied.
  • the mechanical meter 10 may include a disc 111, a gear part 121, a plurality of display rotating plates 131, 132, 133, a display part 151, and a reed switch 160,
  • the reed switch 160 may be connected to the meter reader 100 through wires 171.
  • the disk 111 may rotate in proportion to the amount of electricity, water, gas, and the like.
  • the gear unit 121 operates, and accordingly, the display rotation plates 131, 132, and 133 may rotate, and the display unit as the plurality of display rotation plates 131, 132, 133 rotates.
  • the amount of electricity, water, gas, etc. may be displayed.
  • Each display value may be repeatedly displayed as 1,2,3,4,5,6,7,8,9,0, respectively, as the plurality of display rotating plates 131, 132, and 133 rotate once. That is, the display value of the display rotating plate 132 in the high position increases by 1 each time the display rotating plate 131 of the lower digit is rotated, and the display rotating plate in the higher digit every time the display rotating plate 132 rotates.
  • the display value of 133 can be increased by one.
  • a magnet 141 can be attached to a position where the display rotary plate 131 in the lower position rotates once, and a reed switch 160 can be installed near the display rotary plate 131. have.
  • the leads 163 installed in the reed switch 160 may be coupled to each other. That is, the reed switch 160 may be turned on.
  • a pulse signal is generated every time the reed switch 160 is turned on, and when the pulse signal is counted, the amount of electricity, water, gas, etc. can be electronically measured.
  • FIG. 3 is a diagram illustrating a pulse signal generally generated by the interaction between a magnet and a reed switch
  • FIG. 4 is a diagram illustrating a forward and a reverse direction of a state conversion value generated based on a pulse signal according to an embodiment. It is a drawing.
  • the leads inside the reed switch 160 can be coupled to each other, As shown, a pulse signal may be generated.
  • a high signal is transmitted as a pulse signal as shown in FIG. 3, and when the magnet 220 is separated from the reed switch 160, the leads are disconnected, so that a pulse signal is not generated. In other words, a low signal may be transmitted.
  • controller 200 calculates the number of rotations of the rotating plate based on the state change of the pulse signals, and may calculate the number of rotations by generating a state conversion value from the pulse signals.
  • control unit 200 when receiving a high signal, the control unit 200 generates 1 as a state conversion value, and when receiving a low signal, generates 0 as a state conversion value, and the control unit 200 rotates one rotation of the rotating plate. Since 0 and 1 are received each time, the number of rotations of the rotating plate can be recognized by counting the number of received high signals.
  • the received signal flow is 0, 1, 0, 1, 0, 1, 1 is received 3 times, so it can be recognized that the rotating plate has rotated 3 times, and the received signal flow is 0, 1, In the case of 0, 1, 0, 1, 0, 1, 1 is received 5 times, so it can be recognized that the rotating plate has rotated 5 times.
  • the meter reader 100 including the reed switch 160 is to provide a meter reader capable of accurately determining the rotation of the rotating plate in the reverse direction using a plurality of meter readers and notifying the user of the accurate measurement result. to be.
  • a meter reader capable of accurately determining the rotation of the rotating plate in the reverse direction using a plurality of meter readers and notifying the user of the accurate measurement result.
  • FIG. 5 is a diagram showing a pulse signal generated by the interaction between a magnet and a first lead switch 161 and a second lead switch 162, according to an embodiment
  • 7 is a diagram illustrating forward and reverse directions of state conversion values generated based on pulse signals generated by the first and second lead switches 161 and 162, according to an exemplary embodiment.
  • FIG. 5 it is shown that there are two reed switches (161, 162) for convenience of explanation, but the present invention is not limited thereto, and if the present invention can be applied, the reed switch is composed of various numbers such as three or four. Can be.
  • first lead switch 161 and the second lead switch 162 may be disposed at positions close to each other or at positions far apart from each other according to a design method and purpose.
  • the high voltage generated by the first and second lead switches 161 and 162 It may be disposed at a location where the section d in which the pulse signal overlaps occurs.
  • first and second lead switches 161 and 162 are disposed far apart from each other is generated by the first and second lead switches 161 and 162 as shown in FIG. 8. It may be disposed at a position such that there is no overlapping section of the high pulse signals (a, b, c).
  • FIGS. 6 and 7 are diagrams described on the assumption that a pulse signal as shown in FIG. 5 is generated, and FIGS. 9 and 10 are described on the assumption that a pulse signal as shown in FIG. 8 is generated.
  • the first lead switch 161 and the second lead switch 161 Leads inside the two-lead switch 162 are coupled to each other, and a pulse signal may be generated as shown in FIG. 5 each time they are coupled.
  • controller 200 calculates the number of rotations of the rotating plate based on the state change of the pulse signals, and may calculate the number of rotations by generating a state conversion value from the pulse signals.
  • the controller 200 sets the state conversion value to A, and the pulse signal received from the second lead switch 162 is high ( High), the state conversion value is B, and when the pulse signal received from the first lead switch 161 and the second lead switch 162 is low, the state conversion value is converted to C.
  • the rotation direction of the rotating plate 210 may be determined based on the sum of A, B, and C (X).
  • C is 0, and the absolute value of A and the absolute value of B may be real numbers having different values.
  • A may be 2 and B may be 1, or A may be 1 and B may be 2.
  • the state conversion value is generated as 1, and when the pulse signal received from the first lead switch 161 receives a low signal, the state conversion When the value is 0 and the pulse signal received from the second lead switch 162 is a high signal, the state conversion value is generated as 2, and the signal received from the second lead switch 162 is a low signal.
  • a table as shown in FIG. 6 may be generated.
  • the controller 200 can recognize the number of rotations of the forward and reverse directions and the rotation plate based on the sum of the state conversion values. After the magnet 220 passes through the first lead switch 161 in the forward direction, the second lead switch If (162) is passed, since the recognized state conversion value will be 1-3-2-0-1, in this case, it can be recognized that the rotating plate 210 has rotated one turn in the forward direction.
  • the recognized state conversion value will be 1-0-2-3-1.
  • the rotating plate ( 210) can be recognized as one rotation in the reverse direction.
  • the 1-3-2-0-1 direction is the forward direction, and each time the number changes in this direction, the +1 is made, and the 1-0-2-3-1 direction is the reverse direction.
  • the number changes in this direction if the number is -1, if it becomes +4, it is determined that the rotary plate 210 has rotated one turn in the forward direction, and if it becomes -4, the rotary plate 210 has rotated one turn in the reverse direction. I can judge.
  • 1-3-2-0-1 or 1-0-2-3-1 which is the sequence described in FIGS. 6 to 7, is a number that appears when A is 1, B is 2, and C is 0. Is, but is not limited thereto, and may be generated in various patterns depending on which numbers A, B, and C are assigned.
  • FIG. 8 to 10 are views for explaining a meter reader 100 including a reed switch according to another embodiment
  • FIG. 8 is a magnet 220, a first lead switch 161, and a second lead switch 162
  • Figure 9 is a diagram showing a pulse signal generated by the interaction of the magnet 220, the first lead switch 161 and the second lead switch 162 based on the pulse signal generated by the interaction
  • FIG. 10 is a diagram showing a state conversion value generated based on a pulse signal generated by the first lead switch 161 and the second lead switch 162 according to another embodiment. It is a diagram showing the forward and reverse directions.
  • the first lead switch 161 and the second lead switch 162 overlap the high pulse signal generated by the first lead switch 161 and the second lead switch 162 (d ) May be generated, but in the case of FIG. 8, the first lead switch 161 and the second lead switch 162 are formed by the first lead switch 161 and the second lead switch 162. It may be disposed at a position such that a section in which the sections a, b, and c of the generated high pulse signals do not overlap.
  • the control unit 200 can classify this by using the state conversion value of the pulse signal of the first lead switch 161 and the second lead switch 162. Specifically, the pulse received from the reed switch 161 When the signal is high, the state conversion value is set to A, and when the pulse signal received from the second lead switch 162 is high, the state conversion value is set to B, and the first lead switch 161 and the second When the pulse signal received from the reed switch 162 is low and the state of the pulse signal of the first lead switch 161 is changed (from high to low, or from low to high), the state conversion value is C and zero.
  • the state conversion value is generated as D, and then the sum of the generated A, B, C and D (Y ) On the basis of the rotation direction of the rotating plate 210 may be determined.
  • C is 0, the absolute value of A and the absolute value of B may be real numbers having different values, and the absolute value of D is a real number greater than the sum of the absolute value of A and the absolute value of B.
  • A may be 2, B may be 1, D may be 4, A may be 1, B may be 2, D may be 4.
  • A may be 1, B is 2, C is 0, and D is 4, but it is not limited thereto, and A, B, C, and D may have various numeric values.
  • the state conversion value is set to 1, and when the pulse signal received from the second lead switch 162 is high, the state conversion value is set to 2,
  • the state conversion value is 0, and when the state of the pulse signal of the second lead switch 162 is high to low or low to high, the state conversion value is generated as 4, as shown in FIG. Can be created.
  • the forward switch number refers to a state conversion value generated when the rotating plate 210 rotates in the forward direction
  • the reverse switch number refers to a state change value generated when the rotating plate 210 rotates in the reverse direction.
  • control unit 200 can recognize the number of rotations of the rotating plate and the forward and reverse directions based on the sum of the state conversion values shown in FIG. 9, and the first lead switch 161 in which the magnet 220 is in the forward direction. If passing through the second lead switch 162 after passing, the recognized state conversion value will be recognized as 6-4-1-0-6 as described in the forward sum of FIG. 9. Therefore, in this case, it can be determined that the rotating plate 210 has rotated one turn in the forward direction.
  • the recognized state conversion value is 6-0-1- It will be recognized as 4-6. Therefore, in this case, it can be determined that the rotating plate 210 has rotated one turn in the reverse direction.
  • the 6-4-1-0-6 direction is the forward direction, and each time the number changes in this direction, +1 is performed, and the 6-0-1-4-6 direction is the reverse direction.
  • the number changes in this direction if the number is -1, if it becomes +4, it is determined that the rotary plate 210 has rotated one turn in the forward direction, and if it becomes -4, the rotary plate 210 has rotated one turn in the reverse direction. I can judge.
  • 11 to 15 are diagrams for explaining a method of determining when any one of the reed switches fails in the meter reader including the reed switch according to FIGS. 5 to 7.
  • FIG. 11 is a diagram showing a state conversion value generated based on a pulse signal when the first lead switch 161 fails in a high state
  • FIG. 12 is a diagram showing a state conversion value generated based on a pulse signal.
  • a diagram showing a state conversion value generated based on a pulse signal when a failure in the (Low) state is shown
  • FIG. 13 is a state generated based on a pulse signal when the second lead switch 162 fails in a high state
  • 14 is a diagram showing a state conversion value generated based on a pulse signal when the second lead switch 162 fails in a low state
  • FIG. 15 is a diagram showing a state conversion value generated based on a pulse signal. It is a diagram for explaining a method of determining whether or not a failure of 162). Generating the state conversion value according to the state of the pulse signal has been described in detail in FIG. 5 and will be omitted below.
  • a reed switch can fail in two states, and it can fail in a state that generates a high signal, or it can fail in a state that generates a low signal.
  • the second lead switch is operating normally and the state conversion value will be generated as 2-0-2-0, but the first lead The state change value of the switch 161 will continue to be generated as 1-1-1-1. Accordingly, the state conversion value of the reed switches 161 and 162 added by the control unit 200 will be recognized as 3-1-3-1.
  • the second lead switch is operating normally and the state conversion value will be generated as 2-0-2-0, but the first lead switch The state transition value of (161) will continue to be generated as 0-0-0-0. Accordingly, the state conversion value of the reed switches 161 and 162 summed by the control unit 200 will be recognized as 2-0-2-0.
  • the state conversion value of the switch 161 will be generated as 1-0-1-0, but the first lead The state conversion value of the switch 161 will continue to be generated as 2-2-2-2. Accordingly, the state conversion value of the reed switches 161 and 162 added by the control unit 200 will be recognized as 3-2-3-2.
  • the state conversion value will be generated as 1-0-1-0 because the first lead switch is operating normally, but the second lead switch The state transition value of (161) will continue to be generated as 0-0-0-0. Accordingly, the state conversion value of the reed switches 161 and 162 summed by the control unit 200 will be recognized as 1-0-1-0.
  • 3-2-3-2 which is a state conversion value when the second lead switch 162 fails in a high state, will be recognized as forward-reverse-forward-reverse, and the second lead switch 162 is in a low state.
  • 1-0-1-0 which is a state conversion value, will also be recognized as reverse-forward-reverse-forward.
  • the reed switches 161 and 162 operate normally, they must continue to move in the forward direction or in the reverse direction. As described above, if the direction of the state conversion values continues to change in the forward/reverse direction, the controller 200 will It can be determined that there is a malfunction.
  • control unit 200 may determine which of the first lead switch 161 and the second lead switch 162 has a failure.
  • the controller 220 can know this based on the difference in the state change value.
  • the difference value of the magnitude at which the state change value changes is 2 as an absolute value (3-1-3 -1 / 2-0-2-0), in the case of Figs. 15 and 16, the difference value of the magnitude at which the state change value changes is an absolute value of 1 (3-2-3-2 / 1-0-1- It can be seen that it is 0).
  • the control unit 220 may determine that the first lead switch 161 has failed, and the difference between the absolute value If is 1, it may be determined that the second lead switch 162 has a failure.
  • the difference values 0 and 1 described in FIG. 15 are calculated values because A is 1, B is 2, and C is 0, and these values vary depending on what value A, B, and C are determined. Can be calculated.
  • the state conversion value when the pulse signal received from the first lead switch 161 is high, the state conversion value is set to A, and the pulse signal received from the second lead switch 162 is high. In this case, the state conversion value is B, and when the pulse signal received from the first lead switch 161 and the second lead switch 162 is low, it is assumed that the state conversion value is calculated as C.
  • control unit 200 may determine that the reed switch has failed, and the difference between the absolute values of the state conversion values is shown in FIG. Since both cases in 12 are B, in this case, it can be determined that the first lead switch 161 has failed.
  • the state conversion value of the reed switches 161 and 162 summed by the control unit 200 is A-0- It will be recognized as A-0.
  • the control unit 200 can determine that the reed switch has failed, and the difference between the absolute values of the state conversion values is shown in FIGS. Since both cases in 14 are A, in this case, it can be determined that the second lead switch 161 has failed.
  • 16 to 20 are diagrams for explaining a method of determining when any one reed switch fails in the meter reader including the reed switch according to FIGS. 8 to 10.
  • FIG. 16 is a diagram showing a state conversion value generated based on a pulse signal when the first lead switch 161 fails in a high state
  • FIG. 17 is a diagram showing a state conversion value generated by the first lead switch 161
  • FIG. 18 is a state generated based on a pulse signal when the second lead switch 162 fails in a high state It is a figure showing the conversion value
  • FIG. 19 is a diagram showing a state conversion value generated based on a pulse signal when the second lead switch 162 fails in a low state
  • FIG. 20 is a diagram showing a state conversion value generated based on a pulse signal. It is a diagram for explaining a method of determining whether or not a failure of 162).
  • the state conversion value When a failure occurs while the first lead switch 161 generates a high signal as shown in FIG. 16, since the second lead switch is operating normally, the state conversion value will be generated as 2-0-2-0. The state conversion value of the first lead switch 161 will continue to be generated as 1-1-1-1, and the state of the first lead switch 161 does not change, so the state change of the second lead switch 162 D will be generated as 4-4-4-4. Therefore, the state conversion value of the reed switches 161 and 162 summed by the control unit 200 will be recognized as 7-5-7-5.
  • the second lead switch is operating normally, and the state conversion value will be generated as 2-0-2-0.
  • the state change value of the first lead switch 161 will continue to be generated as 0-0-0-0, and the state of the first lead switch 161 does not change.
  • the resulting D will be created as 4-4-4-4. Accordingly, the state conversion value of the reed switches 161 and 162 added by the control unit 200 will be recognized as 6-4-6-4.
  • the state conversion value will be generated as 0-1-0-1.
  • the state conversion value of the first lead switch 161 will be continuously generated as 2-2-2-2.
  • D is continuously generated as 0, and the state of the pulse signal of the first lead switch 162 continues to change, but C is 0, so the final sum is 2-3 It will be created as -2-3.
  • the state conversion value will be generated as 0-1-0-1.
  • the state conversion value of the 2-lead switch 162 will continue to be generated as 0-0-0-0.
  • D continues to be generated as 0, and the state of the pulse signal of the first lead switch 162 continues to change, but C is 0, so the final sum is 0-1. It will be created as -0-1.
  • 2-3-2-3 which is a state conversion value when the second lead switch 162 fails in a high state, will be recognized as forward-reverse-forward-reverse, and the second lead switch 162 is in a low state.
  • the state conversion value 0-1-0-1 will be recognized as reverse-forward-reverse-forward.
  • the controller 200 may determine that the reed switch has failed.
  • control unit 200 may determine which of the first lead switch 161 and the second lead switch 162 has a failure.
  • control unit 220 can know this based on the difference in the state change value.
  • the magnitude at which the state change value changes is 2 as an absolute value (7-5-7-5 / 6-4-6-4)
  • the magnitude at which the state change value changes is 1 (2-3-2-3 / 0-1-0-1) as an absolute value. .
  • the control unit 200 may determine that the first lead switch 161 has failed, and the difference in the absolute value If is 1, it may be determined that the second lead switch 162 has a failure.
  • the difference values 0 and 1 described in FIG. 20 are calculated values because A is 1, B is 2, C is 0, and D is 4, and these values are calculated as A, B, C, and D. It can be calculated in various ways depending on whether you decide to do so.
  • the state conversion value when the pulse signal received from the first lead switch 161 is high, the state conversion value is set to A, and the pulse signal received from the second lead switch 162 is high.
  • the state conversion value is B, when the pulse signal received from the first lead switch 161 and the second lead switch 162 is low and the state of the pulse signal of the first lead switch 161 is changed. It is assumed that the conversion value is calculated as C, and when the state of the pulse signal of the second lead switch is changed, the state conversion value is calculated as D.
  • control unit 200 may determine that the reed switch has failed, and the difference between the absolute values of the state conversion values is shown in FIG. Since both cases in 17 are B, in this case, it can be determined that the first lead switch 161 has failed.
  • the state conversion value of the reed switches 161 and 162 summed by the control unit 200 is 0-A- It will be recognized as 0-A.
  • the control unit 200 can determine that the reed switch has failed, and the difference between the absolute values of the state conversion values is shown in FIG. In 19, since both cases are A, in this case, it can be determined that the second lead switch 161 has failed.
  • FIG. 20 is a block diagram showing some components of the meter reader 100 including a reed switch according to an embodiment.
  • a meter reader 100 including a reed switch includes a first lead switch 161 and a second lead switch 162, a first lead switch 161, and a second lead switch (
  • the present invention is not limited thereto, and more than two leads are provided for the meter reader to which the principles of the present invention can be applied. It may include a switch.
  • the detection unit 170 detects the state of the pulse signal generated by the interaction between the first lead switch 161 and the second lead switch 162 and the magnet 210 in real time, and recognizes a high signal or The detection result may be transmitted to the controller 200 by detecting whether it is a low signal.
  • the controller 200 may calculate a state conversion value for each of a plurality of reed switches based on the state of the pulse signal, and determine a rotation direction direction of the rotating plate 210 based on the calculated state change value.
  • the rotation direction of the rotating plate 210 may be determined based on the direction of the summed values. A detailed description thereof will be omitted since it has been described with reference to FIGS. 5 to 20.
  • the communication unit 180 may inform the user's mobile terminal device of information about the current state of the reed switches 161 and 162.
  • the communication unit 170 transmits information on the reed switches 161 and 162 to the user's mobile terminal device 300 using various wireless communication methods such as Wi-Fi, Bluetooth, wireless communication network, 3G or 4G. I can.
  • the display unit 190 may externally display information on the current state of the reed switches 161 and 162.
  • the display unit 190 may include a display panel (not shown) for expressing this, and the display panel includes a cathode ray tube (CRT) display panel, a liquid crystal display (LCD) panel, A light emitting diode (LED) panel, an organic light emitting diode (OLED) panel, a plasma display panel (PDP), a field emission display (FED) panel, etc. can be used. I can.
  • the display unit 190 may include a touch display panel (not shown) for receiving a user's input.
  • FIG. 22 is a flowchart illustrating a method of controlling the meter reader 100 including a reed switch according to an exemplary embodiment.
  • the meter reader 100 may sense a pulse signal generated while the reed switch 160 passes through the magnet 210 in real time. (S10)
  • the method of generating the state conversion value may be variously generated according to the position where the reed switch 160 is disposed, and a detailed description thereof will be omitted, as described above.
  • the state conversion values are summed for each reed switch 160, and then it may be determined whether the state conversion value changes according to a predetermined order.
  • the predetermined order varies depending on the number of the state conversion values generated.
  • the 1-3-2-0-1 direction is a predetermined direction, and the state conversion value is 1-3-2-0. If it changes to -1, it can be determined that it operates in the forward direction. (S40)
  • a meter reader including a reed switch is provided with only one reed switch 30 as a path through which current can flow, and if the reed switch fails, the operation of the mechanical device and system may be stopped or a safety problem may occur. There was a problem that reliability was poor due to concern.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Un mode de réalisation de l'invention concerne un dispositif de lecture de compteur pouvant comprendre : une plaque rotative ; un aimant disposé sur une surface de la plaque rotative ; un premier commutateur à lames et un second commutateur à lames ; et une unité de commande permettant de générer une valeur de conversion d'état en fonction de l'état d'un signal d'impulsion généré suite à l'interaction entre les premier et second commutateurs à lames et l'aimant, puis de déterminer la direction de rotation de la plaque rotative en fonction de la valeur de conversion d'état générée.
PCT/KR2020/010362 2019-08-09 2020-08-05 Dispositif de lecture de compteur et procédé de commande de dispositif de lecture de compteur WO2021029600A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020190097829A KR20210017923A (ko) 2019-08-09 2019-08-09 검침기 및 검침기의 제어 방법
KR10-2019-0097828 2019-08-09
KR1020190097828A KR20210017922A (ko) 2019-08-09 2019-08-09 검침기 및 검침기의 제어 방법
KR10-2019-0097829 2019-08-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114189012A (zh) * 2021-11-26 2022-03-15 中检集团南方测试股份有限公司 一种交流充电桩电能计量检测模块

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000013920U (ko) * 1998-12-29 2000-07-15 전주범 자동 검침 계량기
JP2000356540A (ja) * 1999-06-16 2000-12-26 Tokyo Gas Co Ltd ガスメータ
KR20010016548A (ko) * 2000-12-20 2001-03-05 전주범 근거리 무선 검침 계량기의 역회전 감지장치 및 방법
US6333626B1 (en) * 1999-08-27 2001-12-25 Breed Automotive Technology, Inc. Flow meter for converting mechanical rotation into an electronic signal
KR20080014446A (ko) * 2006-08-11 2008-02-14 주식회사 카오스 윈 전자식 수도미터 및 그 제어 방법

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
KR20000013920U (ko) * 1998-12-29 2000-07-15 전주범 자동 검침 계량기
JP2000356540A (ja) * 1999-06-16 2000-12-26 Tokyo Gas Co Ltd ガスメータ
US6333626B1 (en) * 1999-08-27 2001-12-25 Breed Automotive Technology, Inc. Flow meter for converting mechanical rotation into an electronic signal
KR20010016548A (ko) * 2000-12-20 2001-03-05 전주범 근거리 무선 검침 계량기의 역회전 감지장치 및 방법
KR20080014446A (ko) * 2006-08-11 2008-02-14 주식회사 카오스 윈 전자식 수도미터 및 그 제어 방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114189012A (zh) * 2021-11-26 2022-03-15 中检集团南方测试股份有限公司 一种交流充电桩电能计量检测模块

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