Device for remote monitoring of gas equipment operation and household gas leaks in apartment blocks

FIELD: instrument making.

SUBSTANCE: device comprises gas instruments, gas consumption counters, gas content sensors, sensors of volume flow of air, oxygen, scaling and differential amplifiers, comparators, digital to analogue converters, setters of the minimum value of volume air flow, a setter of the value of permissible imbalance, a summator of gas flow, time delay units, gas supply cutoff valves, "OR" elements, a cellular communication modem and apartment radio modems with a set of information inputs and outputs.

EFFECT: higher safety of natural gas use in apartment blocks by continuous remote monitoring of balances of gas flows leaks and combustion products with automatic or remote stop of gas supply in case of impermissible violations in operation of gas equipment.

1 dwg

 

The invention relates to the field of instrumentation, in particular to devices for remote monitoring of the balances of gas flows, gas leakage and products of combustion using natural gas in blocks of flats.

Known emergency alert system with alarm at the appearance of fire, gas and ambient air pollution, which contains the Central control device and a control including a microprocessor, a memory block, the interface block, the block I / o information containing display with keyboard, fire sensors, gas sensors, sensors of factors ambient air pollution (U.S. Patent 5493272 A, G08B 26/00, publ. 20.02.96).

The disadvantage of this system are low functionality due to the lack of automatic monitoring of gas leaks and, therefore, a low level of security in the use of natural gas.

The known method and device control emergency gas space, namely, that the project would produce control the presence of explosive gas through the installation of stationary devices, fixing invalid the gas concentration by volume with fixing the appearance of the lower explosion limit of the gas mixture at several points of the control (EN 2124745, CL G01W 1/00, publ. 1999.01.10).

Nedostatki which this invention is the limitation of its use in the control of domestic gas leaks in homes.

Known multi-function control and management system with a Central control device and control the common bus units I / o, gas sensors, sensors of the factors of pollution of the ambient air, the device off gas supply, multichannel signal on a telephone line (EN 2147145, CL G08B 25/00, publ. 2000.03.27).

The disadvantage of this system is the low reliability of the safety operation of gas equipment in apartment buildings.

Known to the control device housing and utilities information containing sensors gas shut-off valve gas supply, gas meter, gas appliances, while the sensors are connected through channels of communication with the Central control room (EN 2141626, CL G01F 1/00, AS 2/00, G08B 17/00, publ. 1999.11.20).

The disadvantage of this device is a low level security use of natural gas in blocks of flats.

Closest to the proposed invention is a device control leakage of household gas in apartment buildings containing residential gas appliances, gas flow meter, gas sensors, sensors air flow in fume cupboards, scaling and differential amplifiers, a comparator unit minimum value of the volumetric flow of the air, the unit time delay shut-off valve gas supply, multiple-input element "OR" and a cellular modem with a set of information inputs and outputs (EN 2396603 CL G08B 17/00, publ. 2010.08.10).

The disadvantage of this device is the low level of security due to the lack of controlling the balance of the gas flow and combustion products by using natural gas in blocks of flats.

The aim of the invention is to improve the safe use of natural gas in blocks of flats by continuous remote monitoring of the balances of the gas flow, leakage and products of combustion with automatic or remote gas supply in the event of unacceptable irregularities in the operation of gas equipment.

This objective is achieved in that in the known device, the housing containing a gas appliance, the gas meter, gas sensors, sensors air flow in fume cupboards, scaling and differential amplifiers, the first comparator unit minimum value of air flow, the first unit time delay and shut-off valve gas supply, the first multiple-input control "OR" and a cellular modem with a set of information inputs and outputs, inputs of housing units with a set of info is made use of inputs and outputs, housing and access oxygen sensors, the first, second and third digital to analog converters, access sensors gas adder gas flow, checker, block comparison, the unit values of detuning entrances gas meter, the second multiple-input element "OR", the comparator and the unit delay time, and outputs the housing of the gas sensors, air flow in fume cupboards and oxygen are connected to information inputs of the housing of the radio modem and the inputs of the first multi-input element "OR"exit the housing of the counter gas flow through the first d / a Converter, a differential amplifier and a comparator connected to the information input housing of the radio modem and the first multi-input element "OR", the output of the sensor volume air flow in fume cupboards via the second d / a Converter and scaling amplifier is connected to a second input of the differential amplifier, a second comparator input connected to the reference minimum values of volumetric air flow, the output of the first multi-input element OR is connected with the information input housing of the radio modem and through the first unit time delay with control input of the first cutoff valve of the gas supply, the information output housing is of audiomodem connected to the input of the first multi-input element "OR", residential gas appliances through the gas flow meter is connected to the first shut-off valves gas supply, the outputs of the first digital to analog converters connected to inputs of adder gas flow outlet through which the corrector is connected to the first input of the comparison, the second input is through the third d / a Converter connected to the access counter of the gas flow, the information inputs of the cellular modem and the second multi-input element OR connected to the outputs of access sensors gas, oxygen and a second comparator, a first input connected to the output of the Comparer, and the second with the unit values of the detuning of the output of the second multi-input element "OR" connected to the information input of the cellular modem and through the second unit time delay with control input of the second cutoff valve of the gas supply, the output side of the gas meter is connected to the information input of the cellular modem, the information outputs of which are connected to the inputs of unit values for offset and the second multi-input element "OR"modem cellular radio channel associated with the housing units.

The essence of the invention is illustrated shown in the drawing the block diagram of the remote device m is monitoring the operation of gas equipment and leakage of household gas in apartment buildings.

Remote monitoring of the operation of gas equipment and leakage of household gas in apartment buildings contain residential gas appliance 1, the counter flow gas 2, gas sensors 3 sensors air flow 4 in fume cupboards, scaling 5 and 6 differential amplifiers, the first comparator 7, the unit minimum value of air flow 8, the first unit time delay 9 and the cut-off valve gas supply 10, the first multiple-input control "OR" 11, the cellular modem 12 with a set of information inputs and outputs, housing units 13 with a set of information inputs and outputs, the housing 14 and access 15 the oxygen sensors, the first 16 and second 17 and third 18 d / a converters, access the gas sensors 19, the adder gas flow 20, the corrector 21, block 22 comparison, the unit values of detuning 23, entrances gas meter 24, the second multiple-input element OR 25, the second comparator 26, the second unit time delay 27 and the second shut-off valve gas supply 28.

The device operates as follows.

In the normal mode of operation of the gas equipment in a block of flats natural gas shut-off valves gas supply 10 in each apartment and gas flow meter 2 is fed to a gas appliance 1, where it shore is selected. When burning natural gas in the acceptable range and complete combustion of the gas sensors 3, air flow 4 in fume cupboards and housing 14 oxygen sensors produce output signals that fall outside the established acceptable value. The signal on the current consumption of natural gas residential gas meter 2 through the first 16 d / a Converter is fed to a differential amplifier 6, which is compared with the signal coming from the sensor volume air flow 4 17 through the second d / a Converter and scaling amplifier 5. As a result, the output of the differential amplifier 6, a signal is generated that is proportional to the ratio of volumes supplied to gas appliances 1 natural gas and exhaust of combustion products. Under normal combustion process the signal at the output of differential amplifier 6 does not exceed the permissible limit set by referencing the minimum volumetric air flow 8, and the output of the first comparator 7 is supported by the signal corresponding to the operation of gas equipment within the acceptable range. The signals from the sensors, gas concentration 3, sensors air flow 4, the housing 14 of the oxygen sensors and the first comparator 7 are served on a first multiple-input control "OR" 11. During normal operation, adesigner not lead to his firing and the signal on the housing of the shut-off valve gas supply 10 is not available. The signals from these sensors and the housing of the flow meter gas 2 served on the housing units 13 with a set of information inputs and outputs that network associated with the cellular modem 12 with a set of information inputs and outputs.

The current cost of gas from all of the apartments in the apartment building, coming from the first 16 digital-to-analogue converters are added at any point in time on the adder gas flow 20 and through the corrector 21 serves on the block comparison 22. To another input of the comparison 22 18 through the third d / a Converter signal with an access counter gas flow 24. As a result, the output of the Comparer 22, a signal is generated that reflects the difference between the total flow of natural gas into the apartment building, and gas consumed in the apartments entrance at any point in time. This is controlled by the balance gas flows in the stairwell of an apartment building. During normal operation of the gas equipment discrepancies in the balances of the gas flow should not exceed the value set by referencing the value of allowable offset 23. The second comparator 26 does not work. Also in the apartment building installed access gas sensors 19 and access 15 sensors sour the ode, output signals which during normal operation of the gas equipment are within acceptable limits. The signals from the access of gas sensors 19, oxygen 15 and the second comparator 26 is served on the second multi-input element "OR" 25. During normal operation, these signals do not lead to his firing and the signal on the second shut-off valve gas supply 28 through the second unit time delay 27 not available. The signals from these sensors and built in the counter flow of gas fed to the cellular modem 12 with a set of information inputs and outputs. The cellular modem 12 with a set of information inputs and outputs is designed to transmit and receive information with the dispatch service getabsolutefile the organization of this apartment building. The result is all the information for each individual apartment and entrance upon the performance of the gas equipment, air pollution, completeness of combustion of natural gas, completeness of combustion gases, gas flow and balance within the entrance are displayed on the screen Manager getabsolutefile organization's apartment building.

In the alarm mode upon actuation of one or multiple residential gas sensors 3, air flow 4, oxygen 14 or the first comparator 7 is formed of the output signal is at the first multiple-input-element "OR" 11, through the first unit time delay 9 and the cut-off valve gas supply 10 stops the supply of natural gas in this particular apartment. Information about the emergency situation through the housing unit 13 and the cellular modem 12 with a set of information inputs and outputs will go to the dispatch point getabsolutefile organization. In the alarm mode upon actuation of one or several access gas sensors 19, oxygen 15 or the second comparator 26 is formed of the output signal at the second multiple-input-element "OR" 25, through which the second unit time delay 27 and the cut-off valve gas supply 28 will stop the flow of natural gas in the apartment building. Information about the emergency situation through the cellular modem 12 with a set of information inputs and outputs will go to the dispatch point getabsolutefile organization. The value of the allowable offset between the gas flow at the entrance and a total gas flow in all apartments is set from the control center via the setpoint value valid offset 23. If the need arises, fire, destruction, emergency Manager remotely from the control center getabsolutefile organization of apartment buildings has enabled the industry to stop the supply of natural gas in each individual apartment via the cellular modem 12, housing units 13 with a set of information inputs and outputs and the first multiple-input control "OR" 11, and in the entrance as a whole through the cellular modem 12 and the second multi-input element "OR" 25.

This solution provides increased safety in the use of natural gas in blocks of flats by continuous remote monitoring of the balances of the gas flow, leakage and products of combustion with automatic or remote gas supply in the event of unacceptable irregularities in the operation of gas equipment.

Remote monitoring of the operation of gas equipment and leakage of household gas in apartment buildings containing residential gas appliances, gas meter, gas sensors, sensors air flow in fume cupboards, scaling and differential amplifiers, the first comparator unit minimum value of air flow, the first unit time delay and shut-off valve gas supply, the first multiple-input control "OR" and a cellular modem with a set of information inputs and outputs, characterized in that it additionally introduced housing units with a set of information inputs and outputs, housing and access oxygen sensors, the first second and third digital-to-analogue converted into atobatele, access sensors gas adder gas flow, checker, block comparison, the unit values of detuning entrances gas meter, the second multiple-input element "OR", the comparator and the unit delay time, and outputs the housing of the gas sensors, air flow in fume cupboards and oxygen are connected to information inputs of the housing of the radio modem and the inputs of the first multi-input element "OR"exit the housing of the counter gas flow through the first d / a Converter, a differential amplifier and a comparator connected to the information input housing of the radio modem and the first multi-input element "OR", the output of the sensor volume air flow in the exhaust cabinets via the second d / a Converter and scaling amplifier is connected to a second input of the differential amplifier, a second comparator input connected to the reference minimum values of volumetric air flow, the output of the first multi-input element OR is connected with the information input housing of the radio modem and through the first unit time delay with control input of the first cutoff valve of the gas supply, the information output housing of the radio modem is connected to the input of the first multi-input element "OR"residential gas appliances cher the C gas flow meter is connected to the first shut-off valves gas supply, the outputs of the first digital to analog converters connected to inputs of adder gas flow outlet through which the corrector is connected to the first input of the comparison, the second input is through the third d / a Converter connected to the access counter of the gas flow, the information inputs of the cellular modem and the second multi-input element OR connected to the outputs of access sensors gas, oxygen and a second comparator, a first input connected to the output of the Comparer, and the second with unit values of detuning of the output of the second multi-input element OR is connected with the information input of the cellular modem and through the second unit time delay with control input the second cutoff valve of the gas supply, the output side of the gas meter is connected to the information input of the cellular modem, the information outputs of which are connected to the inputs of unit values for offset and the second multi-input element "OR"modem cellular radio associated with residential units.



 

Same patents:

FIELD: instrument making.

SUBSTANCE: system includes: generators, apartment gas contamination sensors, gas flow counter, gas supply shut-off valves, gas contamination level comparing unit with allowable value, pulse counters, pulse frequency converters into analogue signal, alarm units; logical components 'OR'; sources of reference voltage of allowable gas contamination level; gas contamination sensors for entrance hall, gas flow counter, gas supply shut-off valves, gas contamination level comparing unit with allowable value, sources of reference voltage of allowable gas contamination level, pulse counters, pulse frequency converters into analogue signal, alarm units; summing unit of total gas contamination of entrance hall, comparing units of total gas contamination levels, sources of reference voltage of total gas contamination, imbalance summing units, imbalance module selection units, evaluation units of current imbalance of gas flow, sources of reference voltage of allowable imbalance level, cellular modem, keys, delay lines, phase manipulator, amplifier and antenna.

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FIELD: physics, signalling.

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FIELD: fire protection.

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FIELD: fire-fighting.

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Fire smoke detector // 2417450

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FIELD: information technologies.

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FIELD: information technologies.

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1 dwg

FIELD: information technologies.

SUBSTANCE: previously a reaction of a knowingly good system is registered in the interval at reference points, and integral estimates of output signals of the system are determined repeatedly (simultaneously) for integration parameter values. For this purpose at the moment of test signal supply to the inlet of the system with rated characteristics, simultaneously integration of control system signals is started for parameters of integration in each of the reference points with weights, by supplying of control system signals to the first inlets of the multiplication blocks. Exponential signals for integration blocks are supplied to the second inlets of the multiplication blocks. Output signals of the multiplication blocks are supplied to the inputs of the integration blocks. Integration is completed at the moment of time. Estimates of output signals produced as a result of integration are registered, the number of the system blocks is fixed, elements of topological links of each block within the discrete system for each reference point are determined, elements are determined from many values {-1,0,1}, the value - -1 is defined, if the sign of signal transfer from the output of the i block to the j reference point is negative. The value 0 is determined, if signal transfer from the output of the i block to the j reference point is not available, the value 1 is determined, if the sign of signal transfer from the output of the i block to the j reference point is positive. Then the rated values of the vector of topological links for each block are defined, the system with rated characteristics is replaced with the controlled one. An identical test signal is supplied to the inlet of the system, integral estimates are determined for signals of the controlled system for reference points and for parameters of integration. Deviations of integral estimates of controlled system signals are determined for reference points and parameters of integration from rated values. Rated values of deviations of integral estimates of controlled system signals are determined for parameters of integration, diagnostic criteria are determined with parameters of integration, by the minimum value of the diagnostic criterion, a serial number of a faulty block is determined.

EFFECT: improved noise immunity of the method for diagnostics of continuous systems of automatic control by improvement of defects observability.

1 dwg

Switching device // 2485679

FIELD: electrical engineering.

SUBSTANCE: in the switching device with "-" and "+" feed bars and n of single-type reserved relay cells consisting of four relays and four isolation diodes, the first, second and third switchable "+" feed bars, the fourth switchable "+" feed bar is introduced with four remote switches with two normally closed contacts, five current sensors, controller. The secondary outputs of windings in each cell are connected respectively to the first, second, third and fourth switchable "+" feed bar; the first, second, third and fourth current sensor is installed respectively at first, second, third and fourth switchable "+" feed bar through which the first normally closed contacts of the first, second, third and fourth remote switch is connected with common "+" feed bar while the fifth sensor is installed at switchable "-" feed bar. Outputs of current sensors are connected to data inputs of the controller which signal inputs trough the second normally closed contacts respectively of the first, second, third and fourth remote switch are connected to the common signal input of the controller.

EFFECT: fault monitoring of the relay in a cell in process of manufacturing and operation.

1 dwg

FIELD: information technology.

SUBSTANCE: apparatus has a synchronisation unit 1, an integrated unit 2, a switch 3, units for controlling and linearising transfer characteristics of multichannel converters 4, counters for counting the number of times a fault detection subunit 5 is switched, a control unit 6, memory units 7 and 8. The output of the synchronisation unit is connected to the input of an interfacing unit, and a multidimensional sequence generator is in form of a multichannel device of a matrix structure with feedback, and the data output of the interfacing unit fully conforms to data connections, and its data output is connected to the input of the switch.

EFFECT: high accuracy of simulation by combining control of transfer characteristics and statistical estimation of the frequency index of the effect of the set of destabilising factors.

2 dwg

FIELD: process engineering.

SUBSTANCE: method of defining parameter setimate inherent in segment related with engineering process circuit of control over operation of control devices, say, valves. It comprises generating signal data corresponding to signal from engineering process control circuit, storing said data, dividing it into segments of signals, and executing statistic analysis at the first segment of data segments selected from said data segments to generate first estimate of parameters inherent in said segment.

EFFECT: higher accuracy of estimation.

20 cl, 9 dwg

FIELD: information technology.

SUBSTANCE: diagnostic tests are created when testing electronic devices. By executing a test, the computational testing process is realised and data packets are generated in an input/output device. The input/output device generates signals at outputs; the control equipment performs display and control of the computational process. The computational process is executed by the control equipment, and specifically generates diagnostic tests, executes the computational testing process and sends data packets to the input/output device by transit through a computational unit having software which realises communication between the control equipment and the input/output device. Information from the control equipment is recorded in the input/output device by the control equipment generating a packet in dashboard interface protocol format with an information recording feature, from which F packets are generated in highway interface protocol format, which are transmitted to the computational unit which, upon receiving the F packets, generates a packet in dashboard interface protocol format and sends said packet to the input/output device, thereby recording information.

EFFECT: minimising testing time and labour input, simple procedure for controlling, monitoring, analysing and processing information during tests.

2 dwg

FIELD: information technology.

SUBSTANCE: disclosed is a method for preliminary assessment of quality of diagnostic tests, consisting in that, based on the description of internal parts of the diagnosed article, an equivalent standard model of connections is formed; for the obtained standard model of the diagnosed article, combinations of input test signals are formed; for each combination of input test signals, parameters of combinations of output signals are determined, wherein at the inputs of the obtained standard model of the diagnosed article, corresponding combinations of input signals are given in a corresponding sequence given in the assessed diagnostic test; for each combination of given input signals, except the first, parameters of combinations of response signals at the outputs of the standard model of the diagnosed article and in characteristic intermediate points between standard models of component parts of the article are determined and, by comparing response signals obtained for the previous combination of given input signals, change in values of response signals is determined; preliminary efficiency of the diagnostic test is calculated; a preliminary decision on sufficient quality of the assessed diagnostic test is made, as a result of which the assessed diagnostic test is sent for refinement or for experimental checking.

EFFECT: shorter time for diagnosing engineering systems.

5 dwg, 1 tbl

FIELD: electrical engineering.

SUBSTANCE: according to the invention, the control system contains at least one hood drive (actuated by at least one electric motor), electric motor and drive controls, an electric circuit including several electric components, multiple gauges intended for measurement of, respectively, the characteristic value of the electric circuit electric component or group of electric components, fault detectors intended to detect a fault at the electric circuit electric component level when the measured characteristic value pertaining to the component concerned exceeds the preset value of falls within a certain preset range of values.

EFFECT: control system fault robustness enhancement.

9 cl, 3 dwg

FIELD: physics.

SUBSTANCE: invention relates to automated test and control equipment and can be used as apparatus for checking operating capacity of multichannel communication systems and apparatus for controlling air-launched weapons of aircraft and their component parts during preflight preparation of the aircraft. The automated test and control equipment includes: a multichannel comparator unit, a virtual reference, a normalisation unit, a multiplexer, a control object, a switch, an output signal conditioner, a control unit, a multichannel comparator unit, a storage unit for reference sets, a storage unit for control results and an operability indicator.

EFFECT: shorter inspection time due to less equipment used in the process and high automation of inspection.

4 cl, 1 dwg

FIELD: automatic control, applicable in systems with excessive quality of transducers, for example, accelerometers, a failure of one of which should not result in a failure of the control system.

SUBSTANCE: the method is based on a periodic check-up of relation between the measured parameters of motion characterizing the correct operation of the transducers, fixation of the moment of failure of the relation, comparison of the readings of the transducers at this moment and at the moment preceding the moment of disturbance of the relation, and determination of the failed transducer by the results of the comparison.

EFFECT: expanded functional potentialities due to possibility of determination of the failed transducer in any excess system.

1 dwg

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