JPH01195798A - Centralized automatic metering device - Google Patents

Abstract

PURPOSE:To collect and manage the result of collection while being incorporated in a host control means further by displaying a message corresponding to the control signal from other control means independently of the setting location of a display switching means when the control signal from other control means is received. CONSTITUTION:When a person in charge of a central device 100 is absent, a display switching section 116 is operated to release the display of the result of collection in a display section 108. The display switching section 116 outputs an electric signal representing the off position of line set position such as '0' to a control section 102. When an electric signal representing the off position of the set position from the display switching section 116 is inputted to the control section 102, the control section 102 outputs the result of collection of the detection data of meters M11-Mnn to an interface 118. The interface 118 outputs the result of collection to a host-computer 600 being other control means via a transmission line 120 in synchronism with the prescribed timing signal. Thus, the result of collection of the central device 100 is managed by the host computer 600.

Description

[Detailed Description of the Invention] 1 [Field of Industrial Application] This invention relates to a data collection device for a plurality of detection devices arranged in Molecule i&, especially a water supply system installed for each consumer,
This invention relates to a centralized automatic meter reading device that detects the consumption of gas, electricity, etc. and aggregates it centrally in a solid device.

[Conventional technology] A conventional centralized automatic meter reading device will be explained using FIG. 2.

In the figure, detection devices (hereinafter abbreviated as meters) installed at each consumer and outputting a detection signal for each predetermined amount of power consumption are M +t~M Ill, M21~M
2 n , M n 1 to M n n have meters M
The transmitting FF (
T11) ~ (τln), (T2 t) ~ (T2o)
, (To+) to (Tn,) are connected to each other.

All of these are collectively referred to as a transmitter (1).

Transmitter (T++) ~ (T+o), (T2+) ~ (T2n
), (Ding. ■) ~ (T1, .) further have connection boxes (B1+) ~ (BIIl), (B21) ~ (B2n),
(Bnl) to (Bnn) are connected, and transmission lines (2-1), (2-2), (2-n
), the first relay transmission device (3-1), (3-2
), (3-n).

Each first relay transmission device W (3-t), (3-2)
, (3-n) are connected to second relay transmission devices (5-1) to (5-n) via transmissions 8 (4-1) to (4-n).

The first relay transmission device! In (3-1), the input interface (8) is connected to the transmission line (2-1) and converts the voltage level of the signal received via the transmission line (2-1) into a logic signal. The control circuit (9) consists of a microprocessor, is connected to the input interface (8), reads its output signal, and performs other data processing necessary for transmission.A counter (10) is connected to the control circuit (9). ,
The data of the transmitters rIl (7 ports) to (T+o), that is, the data representing the power consumption of each meter (Mu) to (MHl) are multiplied by M. The memory (11) stores data necessary for the operation of the control circuit (9), and the display circuit (12) stores ff1lJ.
The transmitter/receiver circuit (B) is connected to the control circuit (9) and performs data input/output and display. The transmitter/receiver circuit (B) is connected between the control circuit (9) and the transmission line (4-1) and performs transmit/receive signal processing. .

Second relay transmission device r? ! In (5-1), the transmitter/receiver circuit (14) transmits 4G! The control circuit (15) is connected to the transmission line (4-1) and sends and receives signals to and from the transmission/reception circuit (13). A transmitting/receiving circuit (16) is connected between the transmission line (6) and the control circuit (15) and converts the signal into a signal for output to the computer, or vice versa. conduct.

The transmitting devices (Tn) to (T+.) output a predetermined signal every predetermined power consumption date, and the signal is transmitted to the connection boxes (8 ports) to (B+n), the transmission line (2-1), and the input interface. It is input to the control circuit (9) via (8). When the control circuit (9) detects a change in the signal at the input interface (8), it outputs the signal to the counter (10) and advances the count by one step. By repeating this, each meter (MH) to (M+n) is displayed on the counter (10).
The data is multiplied by ¥i.

On the other hand, the solid device (7) is sequentially connected to the second relay transmission devices (s-i) to (5-n) via the transmission line (6) in order to collect the data of the counter (lO) in a timely manner. For example, when the second relay transmission device (5-1) that outputs a calling signal receives a calling signal via the transmitting/receiving circuit (16), the 1 control circuit (15) outputs the transmitting/receiving circuit (14) and the transmission line (4). -1)
A selection signal is outputted to the first relay transmission devices (3-1) to (3-n) via. ttSl relay transmission equipment (3-1
), when the control circuit (9) receives the selection signal via the transmitting/receiving circuit (13), it reads the contents of the counter (10) and then follows the reverse path of the above-mentioned calling signal and selection signal. Send to solid equipment. Similar processing is performed for other first relay transmission devices (3-2) to (3-n) and other second relay transmission devices (5-2) to (5-n), and (7) is for all meters (MH) ~
Collect data for (Mnn).

[Problem to be solved by the invention] The conventional centralized automatic meter reading device is configured as described above, and detects, for example, the amount of electricity, etc. for each consumer, and the aggregated results are collectively concentrated in the solid device. are aggregated and displayed or output. Therefore, there is a problem in that it is necessary to allocate human resources for aggregation or monitoring to the solid equipment at all times, and it is not possible to bring multiple solid equipment online and centrally manage them.

This invention was made in order to solve the above-mentioned problems, and it provides a centralized automatic meter reading device that aggregates and manages the results of aggregation in a certain solid device by controlling the control means such as a higher-level computer. The centralized automatic meter reading device according to the present invention includes a plurality of detection means that are arranged in a distributed manner and emit a predetermined detection signal for each predetermined measured quantity, and a detection signal from each of the plurality of detection means into a predetermined transmission signal. A plurality of relay transmission means that convert the signal and output it to a transmission line, and a plurality of detection means that are connected to the plurality of relay transmission means via the transmission line and are transmitted via the transmission line. a central control means that aggregates the measured quantity for each detection means, accumulates and outputs the aggregate results; a display means that displays at least the aggregate results aggregated by the central control means and a control signal from another control means; A display switching means for switching whether or not to display the results on the display means; and a display switching means for outputting the tallied results compiled by the central control means to another control means when the display switching means does not display the tallied results on the display means. and input/output control means for outputting a message corresponding to the control signal from the other control means to the display means when the control signal is received from the other control means.

[Operation] The detection means is, for example, an electronic watt-hour meter, etc., and is distributed for each customer, and outputs a detection signal such as a pulse signal for each predetermined measured amount.

One relay transmission means is provided for each of the plurality of detection means,
An address signal for each detection means is added to the detection signal from each detection means, converted into a predetermined (Tendo signal), and outputted to a transmission line in synchronization with a predetermined timing signal.

The central control means is, for example, an automatic control device having a microprocessor, a memory, etc., and receives the transmission signal from the relay transmission means outputted via the transmission line in synchronization with the predetermined timing signal, and includes the transmission signal in the transmission signal. Measured quantities are totaled for each detection means based on the included address signals, and the total results are accumulated and output to a printer, display device, or the like.

The display means is, for example, a television monitor, and displays the total results compiled by the central control means or another control means connected to the central control means, such as a host computer that centrally controls a plurality of central control means. Displays the message, etc. that corresponds to the control signal from.

The display switching means is, for example, an on/off switch, which switches whether or not to constantly monitor and display the tally results by the display means, and converts the setting position into an electrical signal and outputs it to the central control means.

Here, if there is no need to monitor the tally results in the central control means, the display switching means is operated to select a state in which the tally results are not displayed on the display means. Output to the microprocessor of the central control means.

The input/output control means is, for example, an input/output interface controlled by a microprocessor of the central control means, and when the aggregation results are not displayed on the display means, the input/output control means is an input/output interface that is controlled by a microprocessor of the central control means, and when the aggregation results are not displayed on the display means, the aggregation of the plurality of detection means aggregated in the memory of the central control means is performed. The results are output to another control means, such as a higher-level computer that centrally manages a plurality of central control means. Further, when a control signal from another control means is received, a message corresponding to the control signal from the other control means is displayed on the display means regardless of the setting position of the display switching means.

[Example] An example of a centralized automatic meter reading device according to the present invention will be described with reference to FIG.

In FIG. 1, an intermediate mounting i (1
00) is a control unit (102) consisting of a microprocessor.
and a storage section (1) that stores calculation programs and detected data.
04) and a setting section (1
06) and a signal transmission unit (102) that performs signal conversion and input/output control between the logic signal processed by the control unit (102) and the cyclic digital signal input/output between the transmission path (150). 110), a printer control unit (112) for outputting the aggregation results etc. by the arithmetic processing of the 11il control unit (102), and a display unit (10) for displaying detected data etc.
8), a display switching unit (116) that switches whether or not to display on the display unit (108), and a control unit (10).
It is composed of an interface (118) which is an input/output control means for outputting the aggregated results etc. from the arithmetic processing in 2) to another control means, for example, a higher-level computer (600) that centrally manages a plurality of solid devices (100). has been done.

A plurality of relay transmission devices (200), (300), , , , which are relay transmission means are connected to the transmission line (150).

Each relay transmission device (200), (300), ,'
, , respectively receive cyclic digital signals from the transmission line (150), and control units (204) and (30
4) A signal transmission unit (202), (302), etc. that converts the logic signal into a logic signal used in, or conversely converts the logic signal into a cyclic digital signal, and a plurality of detection means, e.g. Electric energy meter, etc. (hereinafter abbreviated as meter) (M
first interfaces (212), (312) connected to (M, n) through transmitters (T+, +) to (Too) and connection boxes (Bth) to (Bon);
, , and the control unit (204) , (304) ,
Counters (210), (310) 110., which are connected to meters (L++) and 110. and a control unit (204)
, (304) and counters (210), (3
10) A storage unit (208
), (308), , and the respective relay transmission devices (
Address setting sections (206), (306), , for setting address codes of 200), (300), .
,, each meter (Mth) when the centralized automatic meter reading device starts up ~
Second ink faces (214), (314), . (216).

(316), .

Next, the operation of the embodiment will be explained.

For example, in order to collect data on the counter (210) of the relay transmission device (200), the address code of the relay transmission device (200) is inputted by the setting unit (106) of the solid device (100). The control unit (102) reads this setting value, converts it into a predetermined cyclic digital signal in the signal transmission unit (110), and then outputs it to the transmission line (150) as a calling signal.

A solid device (100) and each relay transmission device (200),
(300),,.

, the relay transmission device (200), (
300), .

1. is called to send and receive the necessary data.

Sends a dress signal. This address signal contains an address code within it, and is implemented inside! (100) to identify which relay transmission device the transmission is to, and the address setting section (206) of the relay transmission device.
, (306) A relay transmission device having an address code that matches the set value of , , , is called as the other party of the signal transmission. The calling signal is sent to each relay transmission device (20
0) , (300) , , , signal transmission section (
202), (302), , and is converted into a predetermined logic signal and sent to the control unit (204), (304).
It is output to , , , .

Each control section (204), (304), , , ,
are each address setting section (206), (306),...
, each relay transmission device ff (20
0), (300), . . . The address code is compared with the address code included in the input signal to determine whether the calling signal is output to itself.

If the address codes match, the count number of the counter (210) stored in the storage section (208) of (200) of the relevant relay transmission device is used as a detection signal, and the signal is passed through the reverse route of the above-mentioned calling signal. solid equipment (100
).

By sequentially changing the address code included in the call signal to the address code of the relay transmission device ff (200), (300), , , the solid device (100)
All relay transmission devices (200) connected to
(300) , , , , and detection data of all the meters (Mth) to (Mnn) connected to these can be collected. Furthermore, the middle mounting ff
The control section (102) of (100) displays these data on the display section (108).

Here, the display section (106) is, for example, a television monitor, and displays the detection data of the meters (Mth) to (Mon) collected by the control section (102).

The display switching section (116) is, for example, an on/off switch, which switches the display content on the display section (108) and also controls the setting position using an electrical signal, for example, °'0'.

and °°1°” and output to the control unit (102).

When there is no need to display the tally results on the display means, such as when the person in charge of the solid equipment (100) is absent, the display switching section (116) can be operated to display the collection R[N result] on the display section (108). The 0 display switching unit (116) that cancels the display outputs an electrical signal, for example 0°, indicating that the set position is the OFF position to the control unit (102). Control unit (102
), when an electric signal indicating that the setting position is the OFF position is input from the display switching unit (116), the control unit (
102) outputs a collection of detection data of each meter (Mu) to (...) to an interface (118). The interface (118) outputs the total results to the host computer (600), which is another control means, via the transmission line (120) in synchronization with a predetermined timing signal. Generally, a plurality of solid devices (100) distributed in various locations are connected online to the host computer (SOO). The host computer (600) centrally manages the aggregated results of these solid devices (100).

If there is an abnormality in the signal indicating the aggregated results sent from the solid device (10(1)), a control signal is output from the host computer (600) to the medium device 1 (100) to confirm the data. When the interface (118) of the solid device (100) receives a control signal from the host computer (600), the control section (102) converts it into a message signal corresponding to the control signal and displays the message signal on the display section (108). ).Upper combination, -ta (
When a control signal is output from 6(to), it is generally an emergency situation, and therefore, regardless of the setting of the display switching section (116), the metsurge corresponding to the control signal is always displayed on the display section (108).

In addition, to restart the display on the display unit (108),
The 0 display switching section (116) that switches the set position of the display switching section (116) to the ON state outputs an electric signal 11111 corresponding to the set position to the control section (102). Control unit (1
02), when an electric signal indicating that the set position is the ON position is input from the display switching unit (116), the control unit (102) detects each meter (Mu +) to (Ml, n). The data aggregation results are output to the display section (108).

[Effects of the Invention] As described above, the centralized automatic cross-pulling device according to the present invention displays the tally results on the display section in conjunction with the on/off of the display switching section, or outputs them to another control means. Messages corresponding to control signals from other control means are always displayed on the display, so it is possible to make the solid equipment unmanned and have it controlled by a host computer, which is another control device. It has the effect of being able to.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of a centralized automatic meter reading device according to the present invention, and FIG. 2 is a diagram showing a conventional centralized automatic meter reading device. In the figure, (100) is a solid device, (108) is a display unit, (
116) is a display switching unit, (118) is an interface, and (200) is a display switching unit. (300), . . . are relay transmission devices, and (600) is a host computer.

Claims (1)

[Claims] (1) A plurality of detection means that are distributed and arranged and emit a predetermined detection signal for each predetermined measured quantity, and a detection signal from each of the plurality of detection means is converted into a predetermined transmission signal and transmitted to a transmission line. a plurality of relay transmission means for outputting; and a plurality of detection means connected to the plurality of relay transmission means via the transmission line, based on detection signals from the plurality of detection means transmitted via the transmission line. a central control means that aggregates measured quantities for each time, accumulates and outputs the aggregation results, a display means that displays at least the aggregation results aggregated by the central control means and a control signal from another control means, and the aggregation a display switching means for switching whether or not to display the results on the display means; and when the display switching means does not display the tally results on the display means, the display switching means separates the tally results tallied by the central control means. input/output control means for outputting the output to the control means and causing the display means to display a message corresponding to the control signal from the another control means when a control signal is received from the another control means; Automatic meter reading device.