JPH0619100U - Integrated data collection device - Google Patents

Abstract

(57) [Summary] [Structure] The one-shot pulse circuit (2) that inputs the pulse output from each meter with pulse generator (M) and standardizes the waveform of each pulse to a constant waveform, and The shift register (3) is provided, which receives and counts the pulses output from the one-shot pulse circuit, and accumulates the count data. [Effect] Even if you connect meters with different pulse specifications,
Can be covered by a single interface circuit.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device that transmits the usage amount of electric power, water, gas, etc. detected by a meter to a central station and centrally manages each usage amount.

[0002]

[Prior art]

 Conventionally, electric power, water, gas, etc. companies each attempt to transmit the usage detected by meters for the purpose of fee collection to their own central station by pulse signals, and to conduct centralized meter reading of the usage based on the pulse signals. Has been done. By the way, for large-scale customers such as buildings, factories, and universities, the contract for electricity is a one-off contract, so it is possible to understand the total amount of usage and charges by notification from the power company, but each department, In order to grasp the usage amount of each department, the staff must check the meter regularly and record it in the daily report, or calculate the total usage amount by an appropriate proportion based on the number of people and the occupied floor area. I have to. Therefore, even large consumers can use the above means to set up their own centralized stations, connect the meters installed in each department and department with a predetermined transmission line, and use and charge for each department and department. There is a request to figure out.

[0003]

[Problems to be solved by the device]

 However, as mentioned above, the specifications of the pulse signals output from meters with pulse generators vary. Therefore, if you try to send all the pulse signals output by various meters installed in each department or department to the central station side, design the interface circuits used for the transmitting side and the receiving side according to the specifications of each pulse signal. Must be done, the circuit becomes very complex and expensive. Moreover, when installing a new meter with different pulse signal specifications, it is virtually impossible to reassemble the interface circuit.

[0004]

[Means for Solving the Problems]

 Therefore, the present invention provides an integrated data collection device capable of transmitting and receiving integrated data with a single interface circuit even if the specifications of the pulse signal output from the meter with the pulse transmitter are different. Is. That is, the configuration is a waveform shaper that inputs each pulse output from each meter with a pulse oscillator and standardizes the waveform of each pulse into a constant waveform, and the pulse shaper that outputs each waveform shaper. Is provided, and each is provided with an integrating circuit for counting and counting each count data.

[0005]

[Action]

 Even if the pulse signals with different specifications are output from the meters with pulse generators, the waveform shaper outputs them as unified pulse signals having a certain waveform. Can be sent to.

[0006]

【Example】

 FIG. 1 is a block diagram showing the configuration of an integrated data collection device of the present invention. (M) is a meter with a pulse generator that outputs the energy consumption of electricity, water, gas, etc. as a pulse signal, (1) is a frequency divider circuit, and (2) is the waveform of the pulse signal output from the meter. One-shot pulse circuit, which is an example of a waveform shaper for shaping, (3) is a shift register, which is an example of an integrating circuit that counts and integrates the number of pulses, and (4) is the concentrated data accumulated in the shift register. A transmitter for transmitting to a host (7), which is a station, (5) is an optical communication cable, which is an example of a transmission line, and (6) is a receiver for receiving signals transmitted from the host.

The pulse signal output from the meter with pulse generator (M) is input to the one-shot pulse circuit (2) and, as shown in FIGS. 3 (a) to 3 (c), has a constant pulse width. Is converted to a pulse signal of. Here, if the period of the pulse signal output from the meter is shorter than the pulse width (L) of the converted pulse signal as shown in Fig. 3 (c), as shown in Fig. 1, the frequency divider circuit By connecting an example of a presettable counter circuit (1), the frequency is divided into 1 / n. The pulse signal output from the one-shot pulse circuit (2) is input to the shift register (3) and the number of pulses is counted. FIG. 2 shows an explanatory diagram of a shift register having an 8-bit storage capacity. The shift register shifts by 1 bit and stores it each time one pulse signal is input. When the receiving unit (6) receives the polling signal, which is an example of the read signal transmitted from the host (7), the integrated data stored in the shift register is read and output to the transmitting unit (4). To be done. That is, the shift register functions as a buffer memory that stores the polling signal for a certain period of time according to the period. Further, when the overflow occurs, a reception request signal is transmitted from the transmission unit (4) to the host side, and the integrated data is transmitted when the reception unit receives a predetermined read signal. As described above, each pulse signal output from each meter with pulse generator is converted into a pulse signal having a uniform waveform, so it is composed of a shift register, transmitter, receiver, etc. The interface circuit can be single.

A circuit other than the one-shot pulse circuit may be used as the waveform shaper, and a circuit other than the presettable counter circuit may be used as the frequency dividing circuit. A counter circuit may be used instead of the shift register. Furthermore, by changing the transmitter and receiver, twisted pair or telephone line can be used as the transmission path.

[0009]

[Effect of device]

 By using the integrated data collecting device of the present invention, it is possible to cover the data output from various meters with pulse generators with a single interface circuit. Therefore, it is possible to reduce the cost and expand the range of use of the integrated data collection device.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an integrated data collection device of the present invention.

FIG. 2 is an explanatory diagram of a shift register.

FIG. 3 is an explanatory diagram showing shaping of the waveform of a pulse signal.

[Explanation of symbols]

1 ... Presettable counter circuit, 2 ... One shot pulse circuit, 3 ... Shift register, 4 ... Transmitting section,
5 ... Optical communication cable, 6 ... Receiver, 7 ... Host

Claims (1)

[Scope of utility model registration request] 1. The amount of electricity, water, gas, etc. used is measured,
A data collection device that transmits a pulse signal output by a meter with a pulse oscillator that outputs one pulse per unit amount to a central station, and centrally manages the usage amount based on the transmitted pulse signal, Input the pulse output from each meter with pulse generator, input the waveform shaper that unifies the waveform of each pulse into a fixed waveform, and the pulse output from each waveform shaper.
An integrated data collection device, which is provided with an integrating circuit for counting and integrating each count data.