A kind of bus type automatic remote kilowatt meter reading-out system
Technical field:
The utility model relates to a kind of bus type automatic remote kilowatt meter reading-out system, adapts to passive or active number especially and passes the bus type kilowatt meter reading-out system.
Background technology:
Along with the development of technology and the raising of living standards of the people, intelligent remote is checked meter becomes the demand of modern society, line-disparting type kilowatt meter reading-out system from early stage metrical pulse sender, passing the bus type kilowatt meter reading-out system to passive or active number is used widely in kilowatt meter reading-out system in succession, Automatic meter reading system has changed the manual metering pattern, brings great convenience for user and administrative authority.
Passive or active several biography formula bus kilowatt meter reading-out system is a kind of novel intelligent remote kilowatt meter reading-out system, its basic principle of work is: pass the bus type gauge table by logarithm and undergo technological transformation, pass the inner installation data of bus type gauge table at number and gather electronic module, be converted into digital signal with what number passed the bus type gauge tables by the mechanical counter data presented, by interface modes such as RS-485 bus interface or Mbus bus or C-Mbus buses, data transmission is arrived back level kilowatt meter recorder.The difference that active several biography formula number passes bus type gauge table and passive several biography formula number biography bus type gauge tables is: active biography formula number passes the bus type gauge table and generally adopts the metering method of pulse accumulative total to calculate the operation number of degrees that number passes the bus type gauge table, need long-term power supply, charged pool is done power supply in general the employing, and passive biography formula number biography bus type gauge table generally adopts counter position discriminant approach to finish the Data Digital processing, the general photoelectric sensing position of adopting is differentiated, or by the differentiation of hard contact contact position, need not power at ordinary times, have only in the time of to check meter or to control by the of short duration power supply of bus.The video data for number biography bus type gauge table of passive or active several biography formula bus kilowatt meter reading-out system because of directly reading, stable, reliable, in kilowatt meter reading-out system, obtained Preliminary Applications.
The present bus type automatic remote kilowatt meter reading-out system two-layer above communication network structure of network using of checking meter, at least need two kinds of above equipment of checking meter, article two, the independent bus line more than, define with the most products of industry, generally be divided into: two kinds of dissimilar kilowatt meter reading-out system equipment of concentrator and collector, wherein another bus of concentrator and collector runs through and is connected, constitute an independent bus line, and collector is connected by an independent bus line with number biography bus type number biography bus type gauge table, as many collectors are arranged in the system, just need many and independently gather bus, work as communication distance simultaneously and surpassed the bus driver ability, in bus links, just need to increase trunking, need have two independent bus lines at least for a kilowatt meter reading-out system like this and deposit, also need multiple different kilowatt meter recorder to constitute kilowatt meter reading-out system together, the consequence of bringing thus is: the construction work amount is big, the construction complexity is very high, the wire rod waste is serious, cause the cost of bus type long-distance meter-reading system very expensive, the equipment complexity increases bus type long-distance meter-reading system popularization difficulty greatly simultaneously.
Summary of the invention:
Purpose of design of the present utility model: a kind of bus type Automatic meter reading system is provided, the composition of system is by some same integrated reading devices (1), some numbers pass bus type gauge table (2), communication bus (3) three parts are formed, the connected mode of system is: on the communication bus (3) that any integrated reading device (1) sends in system, connect same integrated reading device (1) and number biography bus type gauge table (2), the integrated reading device (3) that is connected on the communication bus (3) can send communication bus (3), on communication bus (3), connect integrated reading device (1) and number biography bus type gauge table (2) again; Integrated reading device (1) passes bus type gauge table (2) by integrated reading device (1) and the number that communication bus (3) connects the second line of a couplet, adopt tree, can make multiple branches, promptly realized the novel bus type remote automatic meter reading system of unibus, multi-stage cascade communication network structure, the integrated reading device of all connections belongs in the physical sense with a kind of equipment, and it is unified that it has the kilowatt meter recorder configuration, bus structure are simple, construction, debugging are conveniently saved construction cost, characteristics such as processing ease and stable performance.
The utility model is achieved by the following technical solution: system of the present utility model passes bus type gauge tables (2) by: integrated reading device (1), number and forms with communication bus (3), wherein integrated reading device (1) is on systemic-function: integrate data acquisition, management control, data communication and communication relay function, promptly can be used as management equipment, insert kilowatt meter reading-out system as managed devices and trunking again; Integrated reading device (1) is on communication mechanism: have up, descending and local communication interface, can be directly carry out communication by interface requirement and other-end equipment (4) or other data modules, by the uplink communication interface, when being articulated on the communication bus (3), integrated reading device (1) inserts kilowatt meter reading-out system as managed devices and trunking, wherein integrated reading device (1) and number pass bus type gauge tables (2) and form the individual layer network of checking meter, integrated reading device (1) manages the number biography bus type gauge table (2) of the second line of a couplet, control, simultaneously by integrated reading device (101) consistent on the physical significance, integrated reading device (201), integrated reading device (301) ... form the multi-stage cascade communication network, be per two same integrated reading devices (1), can constitute relationship between superior and subordinate by connecting both uplink and downlink ports.
Advantage of the present utility model:
1, system is made up of a bus, can linking number on this bus passes the bus type gauge table, also can connect integrated reading device of the same type simultaneously, has reduced system and has repeated wiring, makes that system construction is simple, wire rod consumption is few, and equipment control is easy, and cost is low.
2, checking meter in the system integrates data acquisition, control, data communication and communication relaying, and equipment has only a kind, and hardware configuration is simple, and the plant maintenance amount is little.
3, system is made up of unibus multi-stage cascade network, and integrated reading device passes the bus type gauge table as number, and can be random design according to system for field reduced the system design difficulty, and management difficulty is convenient to system maintenance.
Description of drawings:
Below, in conjunction with the accompanying drawings concrete enforcement of the present utility model is described further:
Fig. 1: the communication network structural representation of an embodiment of the present utility model
Fig. 2: the electrical principle block diagram of the utility model integrated reading device.
Embodiment:
Accompanying drawing 1, Fig. 2 provide an embodiment of the present utility model without limitation, below in conjunction with embodiment the utility model are further described.
As shown in Figure 1: the bus type automatic remote kilowatt meter reading-out system shown in the present embodiment, comprise: integrated reading device at the highest level (101), secondary integrated reading device (201), third level integrated reading device (301) ... n level integrated reading device (n01), number passes bus type gauge table (2), communication bus (3), wherein the integrated reading device of all in system (N01) physically is same series products, in order to embody the multistage network system topology, integrated reading device not at the same level (1) is represented respectively with the first arabic numeral 1,2,3-N, to distinguish.In conjunction with Fig. 2 the novel embodiment of this enforcement is described further again.
As shown in Figure 2: integrated reading device (1) is made up of following several functional modules: single-chip microcomputer and peripheral circuit (1-1), uplink communication interface unit (1-2), descending current interface unit (1-3), local communication interface unit (1-4), data storage cell (1-5), clock and timing circuit unit (1-6), power module (1-7).Single-chip microcomputer and peripheral circuit (1-1) are as the intelligent heart of integrated reading device (1), finish data processing, exchanges data, functional analysis and externally transmission, receive related command and data, uplink communication interface unit (1-2) is finished and the integrated reading device (1) of upper level or the communication information transmission between other peripheral hardwares, communication and control between the number biography bus type gauge table (2) of the then responsible integrated reading device at the corresponding levels (1) of descending current interface unit (1-3) and its second line of a couplet and the next stage integrated reading device (1) of the second line of a couplet, more than two kinds of communication modes can be the RS-485 communication modes, also can be designed to the Mbus bus, or C-Mbus bus two-wire system communication mode, and in order to finish the local data collection, the spy has increased the local communication interface list (1-4) of one-level, the exchanges data between responsible and local other kilowatt meter recorders.Communication data will be stored in the data storage cell (1-5) after will being handled by single-chip microcomputer according to different purposes, and clock and timing circuit unit (1-6) then finish timing function, regularly finish the preset working task by predetermined agreement.Classify from the communication angle: every integrated reading device (1) is for its higher level's opertaing device, it is as communication slave connecting system, for having equipment under its command, it is as the host computer communication connecting system, every integrated reading device (1) all according to the condition setting of using fixing identity coding (ID1), number passes bus type gauge table (2) and also is provided with fixing identity coding (ID2) simultaneously, by the different equipment of identity coding (ID) identification, and the current processing events of the communications protocol of making an appointment decision.
Integrated reading device (1) is in the state that signal is intercepted, adopt the communication modes of single worker's transmitted in both directions, when integrated reading device (1) receives the order of upper end equipment, integrated reading device (1) will order transparent transmission to next stage integrated reading device (1), in transmission, finish signal relay, after also need analyzing order by the communication format of agreement to this integrated reading device (1), determine the task of this order, finish the management role or the data transfer task that have equipment accordingly at this integrated reading device under its command.
Briefly: when the integrated reading device (1) of upper level need be done operation to the integrated reading device (N01) of back n level, all integrated reading devices between this two-stage just play a transparent communication relaying, the integrated reading device (N01) that order is delivered to the n level of their one-level one-levels, when same data were returned, the data of the integrated reading device of n level (N01) arrived data transfer by them the integrated reading device of upper level equally.By this kind data mode of delivering in relays, just finished unibus multi-stage cascade communication networking meter reading method of the present utility model.
Obviously, after bus type automatic remote kilowatt meter reading-out system shown in the embodiment is done optimization with the function of integrated reading device cleverly, unification by hardware and software, simply realized the unibus multi-stage cascade communication networking mode mechanism of checking meter, therefore, the utility model is not only simple in structure, compact, and easy construction, save construction cost, have very high promotional value.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model claim.