CN1396439A - Controllable intelligent network gas meter - Google Patents

Abstract

A networked intelligent gasmeter is composed of membrane-type machine core, mechanical unit, intelligent circuit module, magnetic sensor, CEBus connector, machine core controller, network adapter, CPU, and LCD. Its advantage is that each user can be individually controlled.

Description

Controllable intelligent network gas meter

Technical field

The present invention relates to a kind of controllable intelligent network gas meter, relate in particular to a kind of standard and meet the CEBus controllable intelligent network gas meter that CEBus networking water, electricity, gas are copied and accepted system automatically.

Background technology

The CEBus network abbreviates instrument communication bus M-BUS as.U.S. Electronic IndustriesAssociation has formally issued the electrical equipment networking standard CEBus (Consumer Electronics Bus, home bus) at family, numbering EIA-600; After revise through several times again, and the subordinate who always is subjected to EIA organizes wideling popularize of Consumer Electronics Manufactures Association.CEBus has obtained American National Standards Institute to be admitted.Along with the exploitation that the Internet technology is progressively used towards household appliances control, each state is all inquired in the actual national conditions according to this country, research and development meet the household appliances networking product that inserts the Internet.Along with the development that China's science and technology and urban construction are advanced by leaps and bounds, modern information industry will become the principal market that each big and medium-sized cities accelerated development " digital city " of China forms China's information industry.In development " digital city ", the networking construction of residential quarters (community) and " the Municipal Administration Public Utilities network platform " are one of very important engineerings in China's urban IT application project.For solving one of " the Municipal Administration Public Utilities network platform " great base application networking end product.How conventional art is combined with modern microelectric technique, computer technology, network technology and software engineering, forming the CEBus network intelligence controllable type gas meter of good, reliable, durable, low-power consumption, safety, is the critical product that CEBus networking three tables are copied and accepted system stability, reliability service automatically.00135437.X number Chinese invention patent application discloses the check meter Automatic meter reading system of bridge and water, electricity, gas table of a kind of CEBus type, its network and components of system as directed can directly drop into actual use.Gas meter primary structure in this patented claim is still traditional membrane type movement, comprise: the distributor chamber valve seat, the valve gap slide block, outtake tube, support, pull rod shaft and pull bar, the coal gas stream in this membrane type movement drives pull rod shaft by pull bar and rotates, and the every counter wheel that drives mechanical counter again rotates, counting.This invention mainly is to have set up little magnetic steel ring at 0.01 counter wheel of original structure, also has additional simultaneously: the CEBus grid line, have totally-enclosed smart circuit module and the Magnetic Sensor of CPU, the smart circuit module is connected with network by the CEBus connector.Magnetic Sensor detects the action of 0.01 little magnetic steel ring on the counter wheel, produces counting, gives administrative authority by Network Transmission again.The concrete structure of this gas meter can satisfy the requirement that network connects, but its mentality of designing is that to be based upon original mechanical count structural, so inherited the precision and the error of mechanical count system, does not bring into play the advantage of electronic counting system.In addition, no matter be network management, still the modern management of charge, gas industry is all had higher requirement to the counting precision of gas meter, requirement by network remote control gas flow has also been proposed simultaneously, promptly require the gas meter of every household is carried out controlledization management, particularly require administrative authority can be at any time to any one the not user's of paying gas meter control on time, block.For this demand, existing non-networked IC-card gas meter has adopted the scheme that electrically operated valve is installed in addition on gas meter air inlet, the pipeline of giving vent to anger.The defective of this scheme is: 1, changed the physical dimension of gas meter, caused difficulty to installation; 2, ducted electrically operated valve is stuck by the foreign material in the coal gas easily, ability out of hand; 3, the external circuit of electrically operated valve wrecks easily, and this destruction can't discover from network, causes out of control.

Summary of the invention

The present invention is directed to the above problem that exists in the prior art, a kind of CEBus controllable intelligent network gas meter of new construction is provided on the basis of above-mentioned Chinese invention patent, relate in particular to a kind of tallying with the national condition, and copy and accept the system hardware platform automatically for China's water, electricity, gas and set up the CEBus networking of DCPL network communication structure (the DCPL network structure is a direct current power line carrier communication network, again as the supply network of magnitude of voltage below 24VDC) and copy and accept gas meter automatically.This gas meter will be innovated a kind of membrane type movement of controllable type gas meter; this cassette mechanism structure will realize controlling easily by network the switching of coal gas; and be the controllable gas meter of gas flow, this programme also has self-protection function, can supervise control structure and whether suffer destruction.Prioritization scheme also will be discarded the mechanical counting device in traditional gas meter, electronic counting and intelligent object circuit arrangement are directly installed in the gas meter full-electronic counting box, measuring accuracy should be higher than prior art, and because of write off the mechanical counter of essential perforation packoff, its structure is simpler, and it is more easy to seal.The measurement standard of CEBus controllable intelligent network gas meter product of the present invention is carried out the GB/T6968-1997 national standard, and can integrate with the international construction of OIML R31:1995, ROCTP50818-95 Russian Federation standard.

For achieving the above object, the described CEBus controllable intelligent network gas meter of the design comprises: the distributor chamber valve seat of membrane type movement, the valve gap slide block, outtake tube, support, pull rod shaft and pull bar, smart circuit module, Magnetic Sensor and CEBus connector is characterized in that: be provided with movement controller, this movement controller is provided with the topworks that is connected with network line, simultaneously be provided with brake(-holder) block on pull rod shaft, topworks is connected with brake(-holder) block.Topworks described here can be the actuating mechanism of electromagnetic type (utilizing electromagnet to inhale moving brake(-holder) block), relay system, electric motor type (by micromotor brake activation sheet) or magnetic inductive (seeing embodiment), after this mechanism receives the instruction of network, can move, drive brake(-holder) block to pull rod shaft " brake ", pull rod shaft stops operating, whole membrane type movement is quit work, and the gas channel of gas meter is blocked.The prioritization scheme of this mechanism is that the intrinsic safety type magnetic in the embodiment of the present application is isolated the slow down mechanism of controlled prevention pull rod shaft rotation of transmission.This mechanism is by stoping the pull rod shaft rotation, distributor chamber valve seat bonnet, slide block can not be moved, force combustion gas can't enter the distributor chamber valve seat, make outtake tube not have combustion gas output, form the gas meter that controlled combustion gas delivery rate standard is ended, be characterized in small controller device 1 and the integrated design of gas meter membrane type movement, the standard of the metering of standard combustion gas delivery rate, flow is by the gas meter of control in the formation, and this table tool flow ends control reliability height, no pipeline vapour lock, shows to sign an undertaking structure standard height.Prioritization scheme of the present invention is: be provided with LCD display, the output of magnetic inductor connects LCD display through CPU, directly shows the gas flow number with display, replaces traditional mechanical count digital wheel.Further prioritization scheme has: 1, the smart circuit system in the CEBus network intelligence controllable type gas meter is installed in the full-electronic box; 2, CEBus communications connectors lead-out mode: draw by full-electronic box outside mounting means.

The CEBus network intelligence controllable type gas meter that the application provides is a major technological breakthrough, and it can adapt to the civilian leather diaphragm gas meter of the existing all size standard of generally using of China, and the resistance of promoting the use of is very little.The design can realize prepaid automatic data logging, combustion gas user control, the examination of the table tool system failure etc. by the DCPL network.Because the DCPL network is a direct current power line carrier communication network, again as the supply network of magnitude of voltage below 24VDC, so implementation cost is very low, uses very convenient.The present invention mainly satisfies the needs of network management and charge modern management, technical scheme by network remote control gas flow is provided, this scheme can be carried out controlledization management to the gas meter of every household, make administrative authority can be at any time to any one the not user's of paying gas meter control on time, block.Simultaneously, the application will cancel mechanical counting device, and making gas metering precision mechanical counter in the prior art is the gas meter of counting standard, realize the control of the copying and accepting of networked gas flow, gas flow simultaneously.Electronic counting, the air-flow that microprocessor in the smart circuit module can be unified the control table tool blocks and the circuit monitoring of self-protection.

Description of drawings

Fig. 1 is the application CEBus network intelligence controllable type gas meter synoptic diagram;

Fig. 2, Fig. 3 are embodiment 1 gas meter control device assembly structure figure;

Fig. 4 is an embodiment 1CEBus network intelligence controllable type gas meter movement assembly structure figure;

Fig. 5 is the circuit theory diagrams of CEBus network intelligence controllable type gas meter embodiment;

Fig. 6 copies and accepts the network connection layout of system and device automatically for CEBus networking water, electricity, gas.

Embodiment

Embodiment 1, with reference to Fig. 1～Fig. 5: at CEBus network intelligence controllable type gas meter of the present invention by network intelligence controllable type gas meter shell 2.0, CEBus network interface 2.1, LCD display 2.2, full-electronic counting box 2.3; Gas meter membrane type movement middle controller device 1, pull rod shaft 2, support 3, lower link bar 4, big pull bar 5, distributor chamber valve seat 6, valve gap slide block 7, epithelium cover plate 8, outtake tube 9 major parts are formed.Wherein, mainly isolate institutes such as gear 1.5, counter sensor chamber 1.6, transmission gear 1.8 and form in the control device 1 by bent axle 1.1, gas meter movement pull rod shaft 1.2, brake(-holder) block 1.3, small machine 1.4, magnetic.The modularization intelligent electronic circuit is installed in the full-electronic counting box 2.3, and the circuit structure part is by shown in Figure 5.Main devices adopts little power consumption chip in circuit theory diagrams, and wherein IC2 is that cpu chip is that core microprocessors, the IC1 of this circuit is that low-power consumption CEBus network communication modulation specialty chip, IC4 are that LCD display driving circuit, IC3 are that pin-saving chip, T4 are that sensor 1, K1 are that sensor 2, K2 are sensor 3 and drive motor M.Described cpu chip is MSP430 series (or P87LPC76X series) microprocessor.This core microprocessors is mainly finished judgement collection, K1 sensor 2, the judgement of K2 sensor 3 flow control states and drive motor M, data processing and storage, bidirectional data communication management and the house dog control of gas flow T4 sensor 1 counting electric pulse characteristic.Cpu chip links to each other by RXD, the TXD of serial communication with IC1CEBus network communication modulation specialty chip.Described IC1 is a CEBus network communication modulation specialty chip, the passing through of cpu chip selects for use RXD, the TXD of serial communication and CEBus network communication modulation specialty chip to carry out data read-write operation, P1.6, P1.7 are R/T control, CD is the modulated-analog signal test side, and be coupled on the CEBus grid line by the modulated-analog signal that non-polar MBU (12), MBU (13) will meet the ITU-TV2.3 standard, CEBus grid line function is on the one hand as network communication, provides circuit as electric power on the other hand.Described CEBus network communication is meant that the bridge of checking meter is by the CEBus grid line, providing electric power to CEBus network intelligence controllable type gas meter is the direct supply of the following safe voltage of 24VDC, simultaneously also is that check meter bridge and CEBus network intelligence controllable type gas meter carries out the grid line of carrier communication.E is a kind of lithium battery of chargeable small-sized 3.6V voltage or is the Ni-MN rechargeable battery in the circuit.CEBus network intelligence controllable type gas meter of the present invention copy and accept automatically system and device be adopt the CEBus network of the following safe voltage dc power supply of DCPL direct current power line carrier communication 24VDC and CEBus network intelligence controllable type gas meter, CEBus type to check meter bridge forms copies and accepts system and device automatically.CEBus networking water, electricity, gas are copied and accepted the network application embodiment connection layout of system and device automatically by shown in Figure 6.

Claims (10)

1, a kind of controllable intelligent network gas meter, comprise: the distributor chamber valve seat of membrane type movement, the valve gap slide block, outtake tube, support, pull rod shaft and pull bar, smart circuit module, Magnetic Sensor and CEBus connector is characterized in that: be provided with movement controller, the structure of this movement controller is: be provided with the topworks that is connected with network line, simultaneously be provided with brake(-holder) block on pull rod shaft, topworks is connected with brake(-holder) block.

2, according to the described controllable intelligent network gas meter of claim 1, it is characterized in that: the topworks of movement controller is: intrinsic safety type magnetic is isolated the transmission speed reducer structure, its concrete structure is: be provided with magnetic and isolate gear and transmission gear, magnetic is isolated gear and is connect by transmission gear and brake(-holder) block.

3, according to the described controllable intelligent network gas meter of claim 2, it is characterized in that: microprocessor is MSP430 series or P87LPC76X series microprocessor in the circuit.

4, according to claim 2 or 3 described controllable intelligent network gas meters, it is characterized in that: hermetically sealed smart circuit system is installed in the gas meter full-electronic counting box.

5, according to the described controllable intelligent network gas meter of claim 4, it is characterized in that: be provided with LCD display in the full-electronic counting box, the output of magnetic inductor connects LCD display through CPU.

6, according to the described controllable intelligent network gas meter of claim 5, it is characterized in that: CEBus network communication mechanism adopts and meets the ITU-TV2.3 standard, little power consumption modulation specialty electronic chip.

7, according to claim 2 or 3 described controllable intelligent network gas meters, it is characterized in that: CEBus communications connectors lead-out mode is: draw by full-electronic box outside mounting means.

8, according to the described controllable intelligent network gas meter of claim 6, it is characterized in that: CEBus communications connectors lead-out mode is: draw by full-electronic box outside mounting means.

9, according to the described controllable intelligent network gas meter of claim 7, it is characterized in that: CEBus communications connectors lead-out mode is: draw by full-electronic box outside mounting means.

10, according to the described controllable intelligent network gas meter of claim 9, it is characterized in that: described CEBus network communication is meant: the bridge of checking meter is by the CEBus grid line, providing electric power to the controllable type gas meter is the direct supply of the following safe voltage of 24VDC, simultaneously also is that check meter bridge and CEBus network intelligence controllable type gas meter carries out the grid line of carrier communication.

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