RU2131611C1 - Multirate multiple-channel telecommunication node meter of power supply usage - Google Patents

Abstract

FIELD: electrical engineering, in particular, direct and remote measuring and accounting of electric power, effective voltage, current and other values. SUBSTANCE: device has detectors of current values of parameters and usage of electric power, multiple-channel detection commutators, analog-to-digital converters, multiplexers, binary flash-memory reverse counters-registers. Goal of invention is achieved by distributed computation using read-only memory units with required set of information processing algorithms and commutators of these units, flash memory units with timer. Goal of invention is achieved also by accumulation and storage of required array of received data in memory, controlling this data array for their transmission through telemetry information channels and displaying them on electronic indicator. EFFECT: significantly decreased number of meters in power distribution, simplified design and decreased cost of telemetry system for checking, monitoring and controlling electric power supply usage and its quality, usage of multiple rates for power supply. 2 dwg

Description

 The invention relates to the field of electrical engineering and is intended for direct and remote monitoring and metering in distribution nodes of multi-channel production and branching consumption of both electric energies, capacities, effective values of voltages, currents, etc., and volumes, capacities, energies and others parameters of other energy carriers.

 Patent search in VTB - “Inventions of the world” for IPC 01k for the period from 1982 to 1996 inclusively showed that currently there are many highly specialized meters in the world for separate accounting and control of consumption (transmission) of capacities, energies, volumes and other parameters various energy carriers: electricity, gas, water, heating, etc. In this regard, at the corresponding stations, at different levels of substations and other distribution centers of energy carriers, including in multi-unit and even separate apartments and houses, with Many highly specialized electricity meters (for example, type SEB, ALFA from ABB, etc.), gas (e.g., type G4, G6, SG-16M, SG-75, etc.), hot (for example, type VSG (d15 ,. .., 250) and others.) And cold (for example, type VSH (d15, ..., 250) and others) water, liquid fuel, the amount, pressure and temperature of the inlet and outlet coolant in heating systems (for example, type ST1, STZ, ST6, MULTICAL III UF, KST, etc.), etc. .. Consumption counters of at least two, and even more so many types of energy carriers at the same time, were not found during the search.

 As a prototype, an “intelligent” multi-tariff digital meter “Alpha” (A1R-AL) of ABB electricity was taken, the structural diagram of which is shown in FIG. 1.

The Alpha A1R-AL electric power meter is microprocessor-based and consists of:
- contact pads (1);
- current sensors in power consumption circuits (2);
- voltage sensors of the controlled power supply network (3);
- a switch of signals of voltage and current sensors (4);
- analog-to-digital converter (5);
- read-only memory module (6);
- digital uniprocessor computer (7);
- electronic indicator (8);
- power supply unit of the meter itself (9);
- non-volatile random access memory with a timer (10):
- body for manual control of the counter (11);
- telemetry transceiver (12).

 The first input of the terminal block (1) is supplied with the mains voltage. This voltage is supplied to the inputs of the voltage sensors (3), to the input of the power supply unit (9) of the meter itself, and through the current sensors (2) and the second terminals of the terminal block (1) to the consumer. The signals from the output of the current and voltage sensors are supplied respectively to the second and third inputs of one switch (4), and from the output of the last - alternately to the input of one analog-to-digital converter (5), which is directly connected to the first input of a digital single-processor computer (7) . The digital uniprocessor computer is connected: by the second input - with the output of the read-only memory module (6); the third input - with the first output of random access memory with a timer (10); the fourth input - with the first output of the telemetry transceiver (12); the fifth entrance - with the output of the manual control (11); the first output - simultaneously with the controlling first inputs of the switch, random access memory with a timer and a read-only memory module; the second output - with the first control input of the analog-to-digital converter; the third output - with the second input of random access memory with a timer; the fourth output - with the second input of the telemetry transceiver; fifth output - with the input of an electronic indicator (8). The second output of random access memory with a timer is connected to the first input of the telemetry transceiver. The power supply to all nodes of the meter is carried out by secondary voltages from the output of the meter power supply unit. The values of the final multi-tariff consumed electric power, capacities, effective voltages, currents, etc., calculated by the "electric power" algorithms calculated in the digital uniprocessor computer according to the "electric power" algorithms, are stored in a non-volatile random access memory with a timer, and output by signals from the manual control to an electronic indicator are sent by encoded request (password) through a telemetry transceiver in duplex mode alu regard to the accounting system and control of electricity consumption.

 As you can see from the diagram, the prototype has the disadvantage that it is designed to work with only one of the types of energy, namely, electricity.

 It is proposed that this drawback be eliminated and that it is possible to calculate, register, accumulate and transmit the values of capacities, energies, volumes, and other parameters of all energy carriers consumed at nodal points using a single counter.

This goal is achieved, as shown in FIG. 2, by introducing new and additional elements, modules and blocks into the structure of the counter-prototype counter:
- switching connector (17) of the meter with external analog, pulse and digital sensors of the current values of the parameters and flow rates of liquid, solid, gaseous and other energy carriers;
- additional switches (4 ^* ) of the input analog signals coming through the connector (17) from external analog sensors;
- additional analog-to-digital converters (5 ^* );
- multiprocessor (7 _E , 7 _A , 7 _C , 7 _I , ...) digital computing systems (7 ^* ) instead of a digital uniprocessor computer;
- switch-distributor (14) of analog-to-digital converters (5, 5 ^* );
-channel multiplexers (18) for transmitting serial and parallel digital information from external digital sensors through the input connector (17) to the multiprocessor digital computer system (7 ^* ) of the counter;
- a block of non-volatile binary reversible counters-registers (19) for continuous counting of pulses coming through the input connector (17) from external pulse sensors;
- multiplexers (20) counter-registers;
- additional modules of read-only memory devices (6 ₂ , ..., 6 _s );
- a switch block of modules of read-only memory devices (15);
- switch of an electronic indicator (16);
- clock distributor (13);
- increase the capacity of non-volatile random access memory with a timer (10 ^* );
- increasing the number of positions of the manual control body (11).

The signals of the external analog, pulse, and digital sensors of the current state (temperature, pressure, humidity, etc.) and the flow rate of liquid, solid, gaseous, and other energy carriers are fed to the inputs of the switching connector (17), as noted above. Connector terminals with signals: from analog sensors connected to inputs (2, ..., n) of additional switches (4 ^* ); from digital sensors of serial and parallel data transmission are connected respectively to the information inputs (2, ..., m) of channel multiplexers (18), from pulse sensors are connected to the counting inputs (2, ..., k) of non-volatile binary reversible counter-registers (19).

The outputs of the additional switches (4 ^* ) are connected to the second inputs of the additional analog-to-digital converters (5 ^* ). The outputs of the analog-to-digital converters (5, 5 ^* ) are connected respectively with the second and third inputs of the switch-distributor (14). The clock distributor (13) with the first and second inputs is connected to the first and second outputs of the multiprocessor digital computing system (7 ^* ), with its first outputs connected to the first control inputs of the sensor switches (4, 4 ^* ), and the second connected to the first control inputs of the analog -digital converters (5, 5 ^* ). The distribution switch (14) is connected with the first outputs to the first inputs of a multiprocessor digital computing system (7 ^* ), and the first input is connected to the second control outputs of the same computing system.

Channel multiplexers (18) are connected by outputs to the first inputs of a multiprocessor digital computing system (7 ^* ), and the controlling first inputs to its second outputs. Through this digital channel, the proposed counter will be able to receive information for storage, conversion and further transmission not only from the indicated sensors, but also from similar meters and other digital subsystems.

Non-volatile binary reversible counters-registers (19) with their outputs are connected to the second inputs of the multiplexers (20), and the controlling first inputs are connected to the first outputs of the multiprocessor digital computing system (7 ^* ). Multiplexers (20) with outputs are connected to the first inputs of a multiprocessor digital computing system (7 ^* ), and the first control inputs are connected to its second outputs. Using this pulse channel, it seems possible to receive data from not only pulse sensors, but also from pulse electricity meters and other pulse subsystems in the proposed counter for storing, converting and further transmitting in digital form information.

The processing of multichannel information in a multiprocessor digital computing system in order to calculate all parameters of energy carriers consumed, including natural and electric energy, is carried out according to the "S" algorithms (S ≤ n, S ≤ m, S ≤ k), the programs of which are embedded in the corresponding modules of the permanent storage unit devices (6 ₁ , ..., 6 _s ), according to the correspondence principle, when connected to the switches (4, 4 ^* ), channel multiplexers (18), multiplexers (20) of the counter-register sets of sensors of specific channels, the energy fels, to the same microprocessors (7 _E , 7 _A , 7 _C , 7 _I , ...), the switches (15) connect the corresponding modules of the read-only memory block (6 ₁ , ..., 6 _s ) for program control required for channels computing processes.

The results of calculations from a multiprocessor digital computing system (7 ^* ) are sent: from the third output - to non-volatile random access memory (10 *); from the outputs (5 _E , 5 _A , 5 _C , 5 _I , 5) through the manual switch (16) - to the electronic indicator (8). By a coded request (password), the results of the calculations from the second output of the non-volatile random access memory are sent to the first input of the telemetry transceiver and then through the communication channels to the system for monitoring, accounting and managing the consumption of all energy carriers and their current quality parameters.

 With a reduction in the number of meters installed in energy distribution nodes, the total number of electronic indicators, power supplies, duplex telemetry transceivers and others decreases. The latter, combined with the presence of digital and pulse inputs, leads to a simplification of the communication networks of the meters with each other, with control rooms and other pulse and digital subsystems, and in aggregate - to reduce the cost of the entire control system, accounting and energy management in this way its quality. In addition, the proposed meter will introduce the principle of multi-tariff for all energy carriers.

 The list of graphic materials.

 FIG. 1. Structural diagram of an electronic digital energy meter "Alpha" by ABB type AIR-AL.

 FIG. 2. Structural diagram of a multitariff multichannel telecommunication nodal energy consumption meter.

Sources of information
1, 2, 3, 4, 5. Technical descriptions and operating instructions for electronic electric meters ПСЧ, СЭБ, СЭТ, ЦЭ680, СЕТАРП. AOOT Mytishchi Electrotechnical Plant, 1996

 6. Information and advertising materials on electronic digital meters "Alpha" company ABB. LLP "JV AVV-VEI" Metronika ", Moscow, 1996 - 1997

 7. Technical description and operating instructions for heat meters ST1, MULTICAL. JSC "Heat meter", Mytishchi, 1997

 8. Technical description and operating instructions for heat meters TS-OZ. CJSC "NPF" Rasco ", Moscow, 1997

 9. Technical description and operating instructions for the heat meter ТСЧ1. JSC "Sarapul Electric Power Plant", JSCB "Impulse", Arzamas, 1997

 10. Technical description and operating instructions for gas meters G4, G6. JSC "Heat meter", Mytishchi, 1997

 11. Technical description and operating instructions for cold water meters and hot water meters. JSC "Heat meter", Mytishchi, 1997

Claims (1)

 A multi-tariff multi-channel telecommunication nodal energy consumption meter containing a terminal block, voltage and current input sensors, a sensor switch, the third and second inputs of which are connected respectively to the outputs of these sensors, an analog-to-digital converter connected to the output of the specified sensor switch, non-volatile random-access memory timer device, read-only memory module, telemetry transceiver IR, electronic indicator, manual control unit, power supply unit of the counter and digital computer connected to the third input with the first output of non-volatile random access memory with a timer, the fourth input to the first output of the telemetry transceiver, the fifth input to the output of the manual control, and the third output with a second input of non-volatile random access memory with a timer, a fourth output with a second input of a telemetry transceiver, a second output of energy a non-independent random access memory with a timer is connected to the first input of the telemetry transceiver, the mains voltage is supplied to the input of the meter’s power supply unit, and from its outputs secondary voltages are supplied to the power terminals of all meter nodes, characterized in that the input block with external analogue inputs is additionally introduced into the meter, pulse and digital sensors of current values of parameters and flow rates of liquid, solid, gaseous energy carriers, switches of the specified input analog signals alov, analog-to-digital converters of these signals, a switch-distributor of analog-to-digital converters, channel multiplexers of these digital external sensors, a block of non-volatile binary reversible counter-registers of these external pulse sensors, multiplexers of these counter-registers, a digital computer is designed as a multiprocessor system, a block of modules of read-only memory devices, an electronic indicator switch, a clock distributor, and the outputs of external analogs sensors through the corresponding terminals of the input block are connected to the second inputs of the additional switches, which are connected by outputs to the second inputs of additional analog-to-digital converters, the main and additional analog-digital converters are connected by outputs to the second and third inputs of the switch-distributor, switch-distributor by the first outputs connected to the first inputs of a multiprocessor digital computer system, and the first inputs connected to the second control the outputs of the same computing system, the clock distributor with the first and second inputs is connected to the first and second outputs of the multiprocessor digital computing system, and the first outputs are connected to the first control inputs of the sensor switches, the second outputs are connected to the first control inputs of the analog-to-digital converters, the outputs of external digital sensors of serial and parallel data transmission through the corresponding terminals of the input block are connected to the second information input channel multiplexers, which are connected by outputs to the first inputs of a multiprocessor digital computer system, and the control first inputs are connected to its second outputs, the outputs of external pulse sensors are connected through the corresponding terminals of the input block to the second counting inputs of a block of non-volatile binary reversible counter-registers, binary reversible counters -registers with the first control inputs connected to the first outputs of a multiprocessor digital computing system, and outputs with are connected to the multiplexer inputs, the multiplexer outputs are connected to the first inputs of the multiprocessor digital computer system, and the control first inputs are connected to its second outputs, the modules of the permanent storage unit are connected by the first inputs to the first control outputs of the multiprocessor digital computer system, and the outputs are connected to the second inputs of the switch read-only memory modules, switch read-only memory modules In addition to the second inputs of the multiprocessor digital computing system, the clock distributor is connected with the first outputs to the control inputs of all analog-to-digital converters, the second outputs are connected to the control inputs of all the sensor switches, and the first and second control inputs are connected to the first and second outputs of the multiprocessor digital computer the fifth outputs of the multiprocessor digital computing system are connected to the first inputs of the electronic indicator switch, the electronic indicator switch is connected to the output of the manual control unit by the second input, and the electronic indicator is connected to the output of the indicator, the calculation of the volumes and parameters of the consumed energy is carried out according to the algorithms, the programs of which are stored in the corresponding modules of the permanent storage unit according to the correspondence principle, when connected by switches, channel multiplexers, multiplexers of counter-registers of sets of sensors of specific energy channels, to the same micro the processors are connected to the processors by the switches of the read-only memory module for program control of the computing processes required for the channels, the calculation results are sent by signal from the manual control for visualization to an electronic indicator, by encoded request through a telemetry transceiver via communication channels to the control, metering and consumption management system all energy carriers and their current quality parameters.

Images