KR0181116B1 - Meter integrating method of remote meter reading system - Google Patents

Abstract

The present invention relates to a remote meter reading system, and to a method for integrating a plurality of meters of a remote meter reading system.

In the meter integration method, a predetermined time corresponding to each signal state is set for digital data including a noise component. If the initial state data of the same state is maintained during the specified time, it is recognized as data and the weighed value of the meter is accumulated. If the initial state data is not maintained for a specified time, it is determined whether the data following the initial signal state maintains the specified time of the data following the initial signal state.

The present invention can be widely applied to various pulse detection methods as well as the meter integration method of a remote meter reading system.

Description

Meter Integration Method for Remote Metering System Meter Integration Method

1 is a flowchart of a conventional meter integration method.

2 is a flowchart of a conventional meter integrating method according to FIG.

3 is a meter integration system diagram according to the present invention.

4 is a concrete flow diagram of the meter integration part of FIG.

5 is a concrete flow diagram of the work distribution unit of FIG.

The present invention relates to a remote meter reading system, and more particularly, to an integration method for accurately integrating the metered value of a meter and executing all functions by using the totalizer of the remote meter reading system.

Typically, remote meter reading systems have a number of pulsed meters. In addition, there are two kinds of integration methods of the pulse type meter. One integration method is for the pulse meter integrator to detect and integrate the transition state of the pulse, and another integration method is to extend the pulse, which is a signal to which the pulse meter integrator is applied, to drive the mechanical display device.

1 is a flowchart of a conventional meter value integration method,

When the program of the totalizer of the meter is executed, the signal state of the meter input is monitored in step (12) .In step (14), the signal state of the input meter is judged to change. If the measurement value of is integrated, the signal is terminated. If there is no change in the input signal state, the process returns to step 12 to continuously monitor the signal state of the input meter.

2 is another flowchart of a conventional meter integration method,

When the program of the meter integrator is executed, in step 22, the signal value of the input meter is monitored, and in step 24, it is determined whether the transition state of the input signal is changed.

If there is a change, proceed to step (26). If there is no change, return to step (22) and continue to monitor the signal status of the meter. In step (26), the pulse width is extended to the extent that the mechanical device can be driven. In step 28, the display unit of the mechanical device is driven to integrate the weighing value and then finish.

The integration method of the conventional pulse type meter has the following problems. The integration method as shown in FIG. 1 causes a malfunction due to noise or chattering because the measurement value is integrated according to the transition of the pulse input from the pulse meter.

The integration method as shown in FIG. 2 causes a malfunction due to noise or chattering because the pulse type meter extends the pulse by the transition state of the input pulse including the noise to drive the mechanical display device.

Accordingly, an object of the present invention is to provide a method for accurate integration of a plurality of pulse meter of the remote metering system irrespective of the ambient noise.

The configuration of the present invention for achieving the above object is characterized in that it comprises at least a pulse processing unit for processing the signal containing the noise as an effective integrated pulse and a measurement value integration unit for integrating the measured value of the pulse type meter.

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

3 is a meter integration system diagram according to the present invention.

The initialization unit 30 initializes the integration device of the meter, the work distribution unit 32 distributes the work of each unit, and the transceiver 34 transmits and receives a signal to the outside. Then, the time management unit 36 manages time for work. In addition, the meter integrating unit 38 integrates the effective weighing value of the meter, the malfunction processing unit 40 processes various kinds of errors during operation, and the reception data analyzing unit 42 analyzes the received signal. In addition, the meter reading unit 44 performs meter reading for the metering request of the work distribution unit.

FIG. 4 is a specific flow chart according to the integration level of the meter integration unit 38 in FIG. 3.

A first step of setting an effective ON / OFF time in accordance with the procedure; a second step of monitoring a pulse state of the meter;

A third step of determining whether an output pulse is on or off according to the monitoring in the second step;

A fourth step of determining whether the set time of the effective on-off state is maintained in the first step according to the determination of the on-off state of the third step;

If the effective on-off time is maintained, the valid state is set and terminated. If the effective on-off state is not maintained, the operation ends without setting the effective state of on-off.

5 is a concrete flow diagram according to the integration procedure of the work distribution unit 32 of FIG.

A first step of determining whether to maintain a set time of an effective on / off state;

A second step of releasing the effective setting time of the on-off when the setting time of the state is maintained and ending if not maintaining the setting time of the state;

In the second step, the procedure ends in the third step of integrating the meter according to the on-off valid state setting.

A description will be given with reference to FIGS. 3, 4, and 5 attached to Embodiment 1 of the present invention.

The pulse processing unit and meter value integration unit for removing noise and providing accurate integration include a meter integration unit 38 and a work distribution unit 32 of FIG.

The meter accumulator 38 of FIG. 3 provides an effective pulse from which noise is removed in the procedure of FIG. 4 to the work distribution unit 32 of FIG.

4 is an operation flowchart of the meter integrator,

In step (100), the effective on / off signal defining time of the meter integrator is set. In step (102), the signal input to the meter integrator is continuously monitored. In step 104, it is determined whether the pulsed signal is in an on state or an off state, and if an initial on state is performed, step 106 is performed. In step 106, if the initial ON state maintains the set time, the process proceeds to step 108; In step 108, an ON signal is set.

In step 110, it is determined whether the initial off state maintains the effective off set time after the process of 104, and if the set time is maintained, step 112 is performed. Step 112 sets an off valid signal. If the off valid set time is not maintained in step 110, step 114 is performed. In step 114, it is determined whether the on-signal state following the initial off-state signal maintains the ON valid set time. If the set time is maintained, step 116 is performed. If the set time is not maintained, the process ends. . In step 116, the ON valid signal is set and finished.

The valid signal output from the meter integrating unit integrates the measured value of the meter in the work distribution unit in the procedure of FIG. 5.

In FIG. 5, in step 200, it is determined whether the set time of effective on / off is maintained. If the time is maintained, step 202 is performed. In step 202, the effective on-off valid setting time is released. In 204, one of the on-off signal states of the meter is selected to integrate the weighing value and end.

As described above, the present invention sets a time for the effective on-off and integrates the metered value of the meter to recognize and integrate only a valid signal from an input signal including noise or chattering, thereby preventing malfunction of the pulsed meter. Provide accurate integration.

The present invention can be applied not only to the remote meter reading system but also to a device for detecting various accurate pulses.

Claims (4)

A meter integration method of a remote meter reading system, comprising: an effective time setting process for setting an effective time of a first state and a second state of digital data; a digital data monitoring process for monitoring digital data input to a meter; A signal state judging process for judging whether the first signal state or the second signal state is established, an effective set time holding judging process for judging each valid set time holding after the signal state judging, and a digital holding the valid set time. A method for integrating a meter in a remote meter reading system comprising a valid signal setting process for setting data as a valid signal and a meter integration process for integrating a meter value. The meter integration method according to claim 1, wherein the signal state determination process has a first signal state in which the effective set time is maintained and accumulates the value of the meter. 3. The method of claim 2, wherein the signal state determining process determines whether to maintain the effective setting time with the first signal state, and wherein the signal judging process has a second signal state to determine maintaining the effective setting time. A second step; a third step of setting the first valid signal if the valid set time is maintained in the first step; and a fourth step of setting the second valid signal if the valid set time is maintained in the second step; And a fifth step of releasing each of the digital data validity setting times after the second and fourth steps. 2. The remote meter reading system according to claim 1, wherein the valid set time determination step comprises the step of making the first signal a valid signal if the second signal is not a valid signal and the first signal state remains valid. Meter integration method.