JP2010020409A - Remote monitoring device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a remote monitoring device for matching the pulse integrated values of a slave station and a master station by simple configurations even when signal transmission between a slave station and a master station or between a pulse measuring instrument and a slave station is interrupted due to the maintenance of a server. <P>SOLUTION: This remote monitoring device includes: a slave station 1 equipped with a pulse measuring instrument which successively outputs pulses according to the usage of electric energy, and integrates the output pulses, and outputs a pulse integrated value; a server 100 which stores the pulses and the pulse integrated value from the slave station 1 through a signal transmission path 2, and outputs the pulses and the pulse integrated value; a master station 3 positioned so as to be separated from the slave station 1, and equipped with an output circuit 26 which successively fetches and stores the pulses and pulse integrated value stored in the server 100 through the signal transmission path 2, and displays this; and a pulse integrated value updating means 200 which reads all the digits of the pulse integrated value stored in the server 100 each time the pulses stored in the server 100 are turned to be specific values, and overwrites all the read digits of the pulse integrated value to the pulse integrated value stored in the output circuit 26 installed in the master station 3 for storage. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention provides a slave station having a pulse measuring device that sequentially outputs pulses according to the amount of power used for each measurement object, such as an electric energy, and outputs a pulse integrated value, and a slave station from the slave station via a signal transmission path. A master station having an output means for storing and outputting a pulse from the slave station and a pulse integrated value, the position being separated from the station, and the pulse integrated value from the pulse measuring instrument is stored in the slave station. This is related to a remote monitoring apparatus that transmits to the master station and overwrites (updates) the same as the integrated pulse value of the master station.

  Conventionally, there is Patent Document 1 as an example of a remote monitoring device. In the present invention, in the slave station, the integrated value correcting means corrects the pulse integrated value, and the in-correction notifying means is the pulse integrated value by the integrated value correcting means. During correction, the pulse correction flag is turned on, and the pulse correction flag and the pulse integrated value are paired and notified to the master station. This is a remote monitoring and control device that blocks the output of a pulse signal when an ON pulse correction flag is notified.

Therefore, according to the invention corresponding to Patent Document 1, in the slave station, the integrated value correcting means corrects the pulse integrated value, and the in-correction notifying means corrects the pulse integrated value while the integrated value correcting means is correcting the pulse integrated value. The middle flag is turned on, and the pulse correction flag and the pulse integrated value are reported to the master station as a set. Since the output of the pulse signal is blocked when the middle flag is notified, the accuracy of monitoring can be improved by ignoring the corrected pulse integrated value at the master station when the pulse integrated value is corrected at the slave station. Can be improved.
JP-A-8-83119

  However, even the invention of Patent Document 1 has a problem that it is difficult to use for demand control.

  According to the present invention, even if signal transmission between a slave station and a master station is interrupted due to server maintenance, it is possible to match the pulse integrated values as display results of the slave station and the master station with a simple configuration. An object is to provide a remote monitoring device.

  In order to achieve the above object, the invention corresponding to claim 1 sequentially outputs pulses according to the amount used for each measurement target such as electric energy, and integrates the output pulses to output a pulse integrated value. A slave station having a pulse measuring instrument, a server for storing pulses and pulse integration values from the slave station via a signal transmission path, and a server for outputting pulses and pulse integration values, and a position separated from the slave station The pulse stored in the server and the accumulated pulse value are sequentially captured and stored via the signal transmission path, and the master station having output means for displaying the pulse and the pulse stored in the server are specified. Every time it becomes a value, all digits of the accumulated pulse value stored in the server are read out, and all the digits of the read accumulated pulse value are overwritten on the accumulated pulse value stored in the output means of the master station. A remote monitor device provided with a pulse integrated value updating means that.

  In order to achieve the above object, the invention corresponding to claim 2 sequentially outputs pulses according to the amount used for each measurement target such as electric energy, and integrates the output pulses to output a pulse integrated value. A slave station having a pulse measuring instrument, a server for storing pulses and pulse integration values from the slave station via a signal transmission path, and a server for outputting pulses and pulse integration values, and a position separated from the slave station Then, the pulse stored in the server and the accumulated pulse value are sequentially taken in through the signal transmission path and stored, and a master station having an output means for displaying the pulse and a predetermined value after the pulse is input from the server. Every time the time comes, all the digits of the accumulated pulse value stored in the server are read out, and the on-time width of the pulse is changed according to the numerical values of all the digits of the read pulse accumulated value from 0 to 9. Station The pulse integration for transmitting to the master station and overwriting the current pulse integration value stored in the output means of the master station with all the digits of the pulse integration value from the pulse measuring device at the predetermined time. It is a remote monitoring apparatus provided with the value update means.

  According to the remote monitoring apparatus of the present invention, even if signal transmission between the slave station and the master station or between the pulse measuring instrument and the slave station is interrupted due to maintenance of the server or slave station, the slave station pulse can be easily configured. The integrated value can be overwritten with the pulse integrated value currently displayed on the output means of the master station, and as a result, the display of the pulse integrated value of the slave station and the master station can be matched.

  Hereinafter, embodiments of a remote monitoring device of the present invention will be described with reference to the drawings. FIG. 1 is an overall schematic configuration diagram, and FIG. 2 is a diagram illustrating a detailed configuration of FIG. 1, which includes a slave station (RS) 1, a server (SVS) 100, and a master station as follows. (HIS) 3 and pulse integrated value updating means 200 shown in FIG.

  The slave station 1 has a pulse measuring device that sequentially outputs pulses according to a measurement object, for example, the amount of power used, integrates the output pulses, and outputs a pulse integrated value. The server 100 stores the pulse and pulse integrated value from the slave station 1 via the signal transmission path 2 and outputs the pulse and pulse integrated value. The master station 3 is in a position separated from the slave station 1 and sequentially stores and stores the pulses and pulse integration values stored in the server 100 via the signal transmission path 2 and displays them. It has the output circuit 26 of FIG.

  The pulse integration value update means 200 binarizes and reads out all digits, for example, six digits, of the pulse integration value stored in the server 100 every time the pulse stored in the server 100 reaches a specific value, for example, 100, and reads this All the digits of the pulse integration value are overwritten and stored on the pulse integration value stored in the output means provided in the master station 3.

  Thus, according to this embodiment, every time the pulse integrated value of the pulse measuring instrument reaches 100, the pulse integrated value of the slave station 1 and the master station 3 is synchronized, that is, the pulse integrated value of the slave station 1 is the pulse of the master station 3. Since the integrated value is overwritten, the accuracy of monitoring can be obtained. This effect can be obtained regardless of whether the server 100 is maintained. Since the transmission is performed with a specific integrated value, the display value accuracy of the central monitoring device is increased in a meter with a large increase in the integrated value.

  Even if signal transmission between the slave station 1 and the master station 3 is interrupted due to the maintenance of the server 100, the pulse integrated value of the slave station is displayed on the output means of the master station with a simple configuration. As a result, the display of the pulse integrated value of the slave station and the master station can be matched. For this reason, it can utilize for demand control. Specifically, the upper limit of the amount used by the measurement target can be suppressed, or it can be used at the time of payment of the fee according to the amount used by the measurement target.

The remote monitoring apparatus described above is specifically configured as shown in FIG. The slave station 1 includes an A / D converter 5 for A / D converting the output of the analog input circuit 4 having n analog input terminals, a digital input circuit 6 having n digital input terminals, and a pulse input terminal. N pulse counters 7 _{1 to} 7 _n having the following functions are connected to the transmission line 2 via the switching circuit 8 and the transmission circuit 9.

The master station 3 has a receiving circuit 10 connected to the transmission line 2, and this receiving circuit 10 is connected to the D / A converter 12 and the D / A converter 12 via the distribution circuit 11. Are connected to an analog output circuit 15 having analog output terminals, a digital output circuit 13 having n digital output terminals, and n pulse output units 14 _{1 to} 14 _n having pulse output terminals.

The pulse input / output portion of this remote monitoring control apparatus will be described. In the pulse counter ₇₁ of the slave station 1 determines the pulse integrated value by counting the pulse signal whose pulse counter unit 16 receives from the pulse input terminal, and a display output circuit 17 via by for example the decimal number 6 digits pulse integrated value And the pulse integrated value is sent to the transmission circuit 9 through the switching circuit 8.

The pulse counter ₇₁ is backed up to the battery 20 in preparation for power outage.

The transmission circuit 9 transmits all the digits of this pulse integrated value to the master station 3 via the transmission path 2. In the master station 3, the receiving circuit 10 receives the transmission signal, and supplies the pulse integrated value indicated by the transmission signal to the pulse output unit 14 ₁ via the distribution circuit 11. In the pulse output unit 14 ₁ , the pulse data storage unit 21 stores the pulse integration value and supplies the pulse integration value to the L (low) active matching circuit 22.

  On the other hand, the pulse output value storage unit 23 stores the pulse integration value in the previous pulse data storage unit 21 and supplies the previous pulse integration value to the matching circuit 22. The coincidence circuit 22 compares the current integrated pulse value with the previous integrated pulse value to determine whether or not there is a difference between the integrated values. When there is a difference between the integrated values, H (high) indicating that there is an increment. A level signal is sent to the AND circuit 24. When receiving the H level signal, the AND circuit 24 passes the pulse signal supplied from the pulse signal generation unit 25 to the output circuit 26 and the pulse output value storage unit 23. The output circuit 26 outputs this pulse signal.

  The pulse output value storage unit 23 increases the stored previous pulse integrated value every time a pulse signal from the AND circuit 24 is received. Similarly, the pulse integration value in the pulse output value storage unit 23 is updated every time a pulse signal is sent out by the pulse signal generation unit 25, and when there is, the current pulse integration value in the pulse data storage unit 21 Match.

  The coincidence circuit 22 determines that these two pulse integrated values coincide with each other, and stops sending the H level signal to the AND circuit 24. As a result, the AND circuit 24 stops the passage of the pulse signal, so that the output of the pulse signal from the output circuit 26 and the update of the pulse integrated value in the pulse output value storage unit 23 are stopped.

Thus, the pulse output unit 14 _1, at receiving period for receiving a current pulse integrated value from the master station 3 child station 1, the pulse signal generates a pulse signal in response to increment of the previous pulse integrated value It is output at the generation timing from the unit 25.

  FIG. 3 is a diagram for explaining the relationship between the pulse measuring instrument M and the slave station RS according to the first embodiment of the present invention. The pulse measuring instrument M has a display MD for displaying 6 digits and a contact S, and sequentially outputs a one-shot pulse according to the amount of electric power used, etc. The shot pulses are integrated to store the pulse integrated value (display value) of the pulse measuring instrument M, and every time the pulse integrated value increases by, for example, 100, the contact S in the measuring instrument M is closed. A display value matching signal is output from the measuring instrument M to the slave station RS. The slave station RS has a pulse integrator having a display RD for displaying six digits, and a capacitor C. The capacitor C stores a one-shot pulse from the pulse measuring device M, and the pulse integrator is a one-shot pulse. When the display value matching signal is input from the measuring instrument M, the pulse of the pulse accumulator in the slave station RS can be displayed at that time. The display of the integrated value is updated to the pulse integrated value (all 6 digits) from the pulse measuring instrument M.

  On the other hand, the current state or the pulse measuring instrument M and the slave station RS of Patent Document 1 described above have the following configurations. That is, the pulse measuring device M sequentially outputs one-shot pulses according to the amount of power used, and the slave station RS integrates the one-shot pulses. For example, the pulse measuring device M integrates only the amount increased in one minute. Yes. The reason for this configuration is to simplify the configuration of the pulse measuring instrument M and the slave station RS.

  According to the first embodiment described above, even if the signal transmission between the slave station and the master station is interrupted due to the maintenance of the server 100, only the configuration of the pulse measuring instrument M and the slave station RS is changed. Thus, the pulse integrated value of the slave station can be overwritten with the pulse integrated value currently displayed on the output means of the master station, and as a result, the display of the pulse integrated value of the slave station and the master station can be matched.

  In the first embodiment, when the pulse integrated value of the pulse measuring instrument M increases by 100 during the maintenance of the server 100, the pulse integrated value updating means 200 receives the pulse integrated value from the server 100 in the master station 3. Although not sent, it works to send the accumulated pulse value increased during the maintenance until the maintenance of the server 100 is completed.

  The second embodiment of the present invention is the same as the first embodiment described above except that the pulse integrated value update means 200 of FIG. 2 is configured as follows. The integrated value update means 200 reads all the digits of the pulse integrated value stored in the server 100 every time a predetermined time has elapsed after the pulse is input from the server 100, and 0 to 0 of all the digits of the read pulse integrated value. An output means for changing the on time width of the pulse according to the numerical value of 9 and transmitting from the slave station 1 to the master station 3 and having all digits of the pulse integrated value from the pulse measuring device in the master station 3 every predetermined time, for example The current integrated pulse value stored in the output circuit 26 is overwritten and stored.

  FIG. 4 is a diagram for explaining the relationship between the pulse measuring instrument M and the slave station RS according to the second embodiment of the present invention. The pulse measuring instrument M has a display MD for displaying 6 digits and a contact S, and sequentially outputs a one-shot pulse according to the amount of electric power used, etc. The shot pulses are integrated to store the pulse integrated value (display value) of the pulse measuring instrument M, and the contact S in the measuring instrument M is closed every time a predetermined time, for example, 100 msec is increased. A display value matching signal is output from M to the slave station RS. The slave station RS has a pulse integrator having a display RD for displaying six digits, and a capacitor C. The capacitor C stores a one-shot pulse from the pulse measuring device M, and the pulse integrator is a one-shot pulse. When the display value matching signal is input from the measuring instrument M, the pulse of the pulse accumulator in the slave station RS can be displayed at that time. The display of the integrated value is updated to the pulse integrated value (all 6 digits) from the pulse measuring instrument M.

  When sending this pulse integration value (all 6 digits), as shown in FIG. 5, for example, “1” is when the pulse on width is 10 msec, “2” is when the pulse on width is 20 msec, and “1” is pulse on. When the width is 10 msec, “3” is when the pulse on width is 30 msec, “4” is when the pulse on width is 40 msec, “5” is when the pulse on width is 50 msec, and “6” is the pulse on width. The time is 60 msec, “7” is when the pulse on width is 70 msec, “8” is when the pulse on width is 80 msec, and “9” is when the pulse on width is 90 msec.

  According to the second embodiment described above, the pulse-on time width from the meter is varied in accordance with the numerical value of 0 to 9, and the signal is cyclically transmitted to each digit so that integration is performed on the master station side. Recognize the value. By performing the operation at any timing from the master station side, it is possible to synchronize with the on-site integrated value.

The figure which shows schematic structure of embodiment of the remote monitoring apparatus of this invention. The figure for demonstrating the detailed structure of the sub_station | mobile_unit of FIG. 1, and a main | base station. The figure for demonstrating 1st Embodiment of the remote monitoring apparatus of this invention. The figure for demonstrating 2nd Embodiment of the remote monitoring apparatus of this invention. The figure for demonstrating 2nd Embodiment of the remote monitoring apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Slave station, 2 ... Signal transmission path, 3 ... Master station, 4 ... Analog input circuit, 5 ... AD converter, 6 ... Digital input circuit, 8 ... Switching circuit, 9 ... Transmission circuit, 10 ... Reception circuit, 11 DESCRIPTION OF SYMBOLS ... Distribution circuit, 12 ... DA converter, 13 ... Digital output circuit, 15 ... Analog output circuit, 16 ... Pulse counter part, 17 ... Display output circuit, 18 ... Display, 20 ... Battery, 21 ... Pulse data storage part, DESCRIPTION OF SYMBOLS 22 ... Match circuit, 23 ... Pulse output value memory | storage part, 24 ... AND circuit, 25 ... Pulse signal generation part, 26 ... Output circuit, 7 _{< 1 >} -7n ... Pulse counter, 100 ... Server, 14 _{< 1 >} -14n ... Pulse Output unit, 200 ... pulse integrated value update means.

Claims (2)

A slave station that has a pulse measuring device that sequentially outputs pulses according to the amount of usage for each measurement target such as electric energy, and integrates the output pulses and outputs a pulse integrated value;
A server for storing the pulse and the pulse integrated value from the slave station via the signal transmission path, and outputting the pulse and the pulse integrated value;
A master station that is in a position separated from the slave station and that sequentially stores and stores pulses and pulse integration values stored in the server via a signal transmission path, and has output means for displaying the same, and
Every time the pulse stored in the server reaches a specific value, all the digits of the accumulated pulse value stored in the server are read out, and all the digits of the read pulse accumulated value are stored in the output means included in the master station. Pulse accumulated value update means for overwriting and saving the accumulated pulse accumulated value;
A remote monitoring device characterized by comprising: A slave station that has a pulse measuring device that sequentially outputs pulses according to the amount of usage for each measurement target such as electric energy, and integrates the output pulses and outputs a pulse integrated value;
A server for storing the pulse and the pulse integrated value from the slave station via the signal transmission path, and outputting the pulse and the pulse integrated value;
A master station that is in a position separated from the slave station and that sequentially stores and stores pulses and pulse integration values stored in the server via a signal transmission path, and has output means for displaying the same, and
Every time a predetermined time has elapsed since the pulse was input from the server, all the digits of the pulse integration value stored in the server are read out, and according to the numerical values 0 to 9 of all the digits of the read pulse integration value, The ON time width of the pulse is changed and transmitted from the slave station to the master station, and all the digits of the pulse integrated value from the pulse measuring device are stored in the master station at the predetermined time every time. Pulse accumulated value update means for overwriting and saving the current pulse accumulated value;
A remote monitoring device characterized by comprising:

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