CN2135211Y - Automatic vacuum magnetic starter for mine computer - Google Patents

Abstract

The utility model discloses an automatic vacuum magnetic starter for mine computer, belonging to the technical field of computer technology and switching control. The automatic vacuum magnetic starter for mine computer comprises a switching isolating switch, a microcomputer, and a vacuum magnetic starter controlled by the microcomputer. The microcomputer comprises software and hardware. The hardware comprises electronic circuits and storages with information collecting, sensing, inputting, switching, transmitting, processing, network controlling, outputting, locking, displaying, instructing, and alarming functions, devices with man-machine conversation, self test, self-diagnosis, pre-monitoring, real time monitoring and monitoring functions, explosion proof and flame proof security devices, and the circuit board, the components and the cabinet casing which assemble the explosion proof and flame proof devices. Multiple computers can be connected for joint control. The automatic vacuum magnetic starter for mine computer is an update product, applying to the inflammable and explosible industries, such as chemical industry, etc.

Description

Automatic vacuum magnetic starter for mine computer

Mining computer automatic vacuum magnetic starter of the present utility model belongs to computer technology and technical field of switch control, is specifically related to micro-processor controlled fully automatic vacuum magnetic starter.

Present vacuum magnetic starter, adopt traditional relay control, complex circuit, the inconvenience maintenance is also dangerous, volume is big and heavy, and failure rate is high and be difficult to get rid of, particularly the mine vacuum magnetic starter, often the fault because of control appliance causes long-term stopping production maintain and replace, brings huge production and economic loss.In view of the situation, it is imperative to eliminate heaviness and insecure relay in mining equipment, and replacing computer controlled automatic, monitoring, management is the imperative of technological progress.Therefore the objective of the invention is provides a kind of higher mine vacuum magnetic starter of automaticity by computer (particularly single chip microcomputer) control and monitoring to society, and this will be the upgrading and the regeneration product of vacuum magnetic starter.

The technical scheme of mining computer automatic vacuum magnetic starter described in the utility model is: this vacuum magnetic starter is by conversion separation switch and go out people's power line and the vacuum magnetic starter of single chip microcomputer and its control is assembled in the cabinet housing, and this cabinet housing will meet mining and specific (special) requirements subsurface environment.Single chip microcomputer comprises its software and hardware, and wherein software is system software package.Hardware comprises: monitoring and the information gathering of monitoring, sensing, input, transmission, conversion, handle, (networking control refers to the online of resource-sharing to networking control, networking, realize the interlock of group's machine joint control), output, locking, each function electronic circuit and each functional memory that demonstration and warning and indicating section are required, the security set of cabinet housing (as safe electronic lock and emergency exit switch), and the circuit board of assembling them, the cable that connects them, lead and connector, constitute their electronic component, device, assembly, parts, its technical characterstic has: a). and described vacuum magnetic starter is the flame proof intrinsically safe type of holding concurrently, and this just requires cabinet and wherein circuit etc. to meet explosion-proof and mining standard flame proof.B). each function electronic circuit that described single chip microcomputer hardware comprises has: monitoring comprises with the collection and the transducing part of monitor message: the input circuit of input block, assembly and above-mentioned each information of heat transfer agent, Information Monitoring, fault message, control information, command information, joint control information; Monitoring comprises with the hop of monitor message: the various transmission circuits of command information, control information, joint control information, input information, output information, transitional information, process information, fault message, stored information and transmission line thereof or transfer bus, transmission part; Monitoring comprises with the conversion and the processing section of monitor message: command information, control information, fault message, joint control information, stored information, transitional information, the number of process information, byte, code, numerical value, amplitude, waveform, frequency, phase place, the variation in cycle, change, conversion, coding, decoding, computing, each functional circuit and the auxiliary circuit handled: coding circuit, decoding circuit, logical circuit, data processing circuit is (as decomposing, combination, read-write etc.), computing circuit (comprising cpu), clock circuit, reset circuit, analog to digital conversion circuit, the hardware interrupts circuit, buffer circuit, protective circuit, sample circuit, translation circuit, analog circuit, commutation circuit, the CE circuit, rectification circuit, filter circuit, gate circuit, switching circuit, amplifying circuit etc.; Monitoring partly comprises with the networking of monitor message: online, coupling components, assembly and interface circuit, the external control circuit etc. of networking to realize that multimachine exchanges mutually along control, joint control and central controlled various joint control interlock information; Monitoring comprises with the output of monitor message: the output block of control information, command information, joint control information, fault message, display message, indication information, guarantor's alarming information, activation bit, assembly and each output circuit etc.; Demonstration, indication, warning, locking, the drive part of monitoring and monitor message comprises display circuit, indicating circuit, warning circuit, exclusive circuit, drive circuit, faulty circuit and each functional part thereof, the assembly of control information, joint control information, locking information, display message, indication information, warning message, activation bit, fault message etc.; Monitoring comprises with the storage area of monitor message: command information, control information, joint control information, process information, stored information, the memory circuit of parameter information is set, the memory that mainly is difference in functionality and different capabilities is the main memory circuit that constitutes; Also have power circuit, governor circuit, anti-jamming circuit, self-checking circuit (comprising pre-observation circuit) or the like in addition, and the auxiliary circuit of above-mentioned each function electronic circuit, these circuit connect the hardware components of having formed or having constituted this single chip microcomputer by function.C). the software kit of described single chip microcomputer adopts modular organization, the programming of use assembler language, software program divides main program and each subprogram, main program maybe needs to call or interrupt each subprogram with priority by various requests, and this system software package can be stored in the memory of inner difference in functionality of expanding that be provided with or outside of this single chip microcomputer and different capabilities.D). the safety device on the described cabinet housing, comprise electronic lock and a cabinet gate controlled switch of this vacuum magnetic starter working power latch switch, they are separately positioned on the cabinet housing or on its door.E). interactive mechanism: described single chip microcomputer has the control mode of this vacuum magnetic starter: the local control of separate unit, the separate unit Long-distance Control, many sequential controls, multiple linkage control, many centralized control, master control, controlled, the main circuit commutation, system reset operation etc., the Control Parameter of these control modes has: rated voltage with load, the load rating electric current, along controlling time of delay, transship time of delay, under-voltage separating brake time of delay etc., the operation conditions of control has: local control, Long-distance Control, many along control, the control of many All-China Federation of Taiwan Compatriots, centralized control, master control, controlled, failure locking, parameter is provided with etc., the Control Parameter of these operation conditionss has: rated voltage, rated current, along the control time-delay, the overload time-delay, under-voltage separating brake time-delay, electric leakage, short circuit, ground connection, phase shortage, the phase failure, overload, superpressure, under-voltage, laod unbalance (voltage between phases loss of equilibrium) etc., the environmental aspect parameter of control has, gas exceeding limit in the cabinet, the outer gas exceeding limit of cabinet, moistureproof, prevent dust etc., the switch condition parameter of control has: the machine box door switch, the start and stop Control Failure, Vacuum Magnetic switch situation, magnetic switch vacuum failure etc., above-mentioned control mode and parameter, operation conditions and parameter, the parameter of environmental aspect, the setting of the wide codomain scope of the parameter of switch situation, select, revise, call, finish or realize that the mechanism that promptly is made of relevant function key of the keyboard of single chip microcomputer and display compounding practice finishes or realizes by human-computer dialogue mechanism, by inner memory stores and the memory of expanding that be provided with or outside of this single chip microcomputer, by the software systems of single chip microcomputer, each memory and each function electronic circuit compounding practice call and monitoring in real time and monitoring.F). detect certainly or self diagnosis mechanism: before this vacuum magnetic starter starts, single chip microcomputer carries out from detecting or self diagnosis the operating characteristics of each function electronic circuit of self and hardware thereof, scope from detection or self diagnosis comprises that monitoring and monitor message are from gathering, sensing, input is up to output, locking, show, each electronic circuit of indication and warning overall process, these electronic circuits comprise: each functional memory, the interface circuit of single chip microcomputer and networking control, external control circuit, this mechanism is by the software systems of single chip microcomputer, each memory and each function electronic circuit compounding practice constitute and realize from detection or self diagnosis and malfunction monitoring, carry out locking when breaking down, show, position, reason and processing method that warning and indication fault occur.G). pre-mechanism for monitoring: before this vacuum magnetic starter starts operation, single chip microcomputer is to each parts of starter (comprising the Vacuum Magnetic switch), power supply, the project that the environmentAL safety parameter is monitored in advance has: electric leakage, the phase failure, phase shortage, superpressure, under-voltage, the voltage between phases loss of equilibrium, gas exceeding limit in the cabinet, the outer gas exceeding limit of cabinet, the machine box door switch, magnetic switch vacuum failure etc., this mechanism is by the software systems of single chip microcomputer, each memory and each function electronic circuit compounding practice constitute and realization starts preceding monitoring in advance and malfunction monitoring, failure locking, show, the position that warning and indication fault occur, reason and processing method.H). monitor in real time and monitor control mechanism: when this vacuum magnetic starter starts operation; single chip microcomputer is monitored in real time and is monitored the parameter of the parameter of the control mode set and parameter, operation conditions and parameter, environmental aspect, switch situation as required and to the malfunction monitoring of above-mentioned each parameter; this mechanism is made of software systems, each memory and each function electronic circuit compounding practice of single chip microcomputer and finishes or realize monitoring in real time and monitoring, shuts down position, reason and processing method that locking, demonstration, warning and indication fault occur when breaking down.

Aforesaid mining computer automatic vacuum magnetic starter, detailed technical characterstic has: a). and its sensing element of the sensing circuit of described power information is contactless electromagnetic induction sensor; The sensing circuit of described environmental information mainly is the sensing circuit of gas information, and its sensing element is the Device in Gas dependent sensor; B). described transmission circuit all by force-the light current signal between mutually transmission information all adopt contactless photoelectricity coupled structure, formed photoelectricity coupled transfer circuit; C). the treatment circuit of described digital information comprises: coding circuit, decoding circuit, logical circuit, reset circuit, data processing circuit, computing circuit (containing CPU), clock circuit, buffer circuit, hardware interrupts circuit; The treatment circuit of described analog information comprises: rectification circuit, filter circuit, amplifying circuit, switching circuit, gate circuit, sample circuit, multi-channel analog circuit, switch switching circuit, sampling hold circuit, mould/number (A/D) change-over circuit, and above-mentioned each circuit connects into the structure of function; D). set up an organization parameter by information input of described interactive parameter is provided with key, digital code enter key, digital code shift key, parameter storage key and digital code double-display screen curtain (or dual screen) and cooperates and form; E). described display circuit and indicating circuit comprise: the indication of transfiniting and the demonstration of the outer gas density of the real-time voltage during operation, electric current and cabinet; Failure locking when breaking down, demonstration, report to the police and point out position, reason and the processing method that fault occurs; F). described drive circuit is the drive circuit of Vacuum Magnetic switch, and this drive circuit is that the master constitutes by contactless bidirectional triode thyristor; G). the modular organization of described system software package divides main program module and each subroutine module, they are stored in the read-only memory of inner that be provided with and outside expansion of single chip microcomputer with the modular macroassembler subroutine respectively, have formed the cure system software kit of this single chip microcomputer; H). described anti-jamming circuit comprises photoelectricity coupled transfer circuit, power source deoupling circuit, hardware filtering circuit, voltage stabilizing circuit and software filtering; I). each function electronic circuit (comprising memory circuit) of this single chip microcomputer is assembled in respectively on the some connector formula circuit boards by the needs of operation, maintenance, assembling, these connector formula circuit boards are installed in the dust proof box, and the circuit board of these connector formulas all scribbles moisture barrier coatings comprehensively, as silicone rubber coating; J). described from detection or self diagnosis and pre-mechanism for monitoring: the single chip microcomputer of this vacuum magnetic starter detects or self diagnosis and to each parts of vacuum magnetic starter certainly to the service behaviour of each function electronic circuit of self and hardware thereof, power supply, the pre-monitoring that each parameter of environment is carried out is to produce fault simulation information fault and pre-each parts of monitoring vacuum magnetic starter with program control self check or each function electronic circuit of self diagnosis hardware by self check subprogram control bidirectional triode thyristor, power supply, the mechanism of the fault of each parameter of environment; K). when the safe electronic lock that is provided with on the described cabinet housing was opened, this vacuum magnetic starter working power was connected, and working power is turn-offed during disconnection; Security set on the cabinet housing comprises that also all electronic circuit boards all scribble dustproof coating and they are installed in the moisture seal case.

Aforesaid computer automatic vacuum magnetic starter, its more detailed technology contents also has: a). and the non-contact type electromagnetic induction sensor of described power information comprises that one is appointed the transformer that is provided with on the two-phase in order to gather information of voltage at power supply, the collection value can be 5,10,15,20,30 volts etc., a current transformer is set every on mutually, in order to gathering current information, sampling is than being 1/200,1/400 etc.; B). described by force--between the light current signal mutually the photoelectricity coupling circuit of transmission information be mainly to constitute with the photoelectrical coupler, the circuit of this structure is provided with one on each transmission line, this transmission circuit has advantages such as anti-interference, safe; C). the rectification circuit of the treatment circuit of described analog signal is to be the main precise rectification circuit that constitutes with the operational amplifier, and filter circuit is the narrow bandpass filter circuit, is the narrow bandpass filtering of 10～100Hz as bandwidth; D). described interactive digital code double-display screen curtain (or display) is to show four codes respectively or/and the display screen (or display) of numeral, and the parameter code that the parameter setting is indicated by the digital code table of parameter setting is finished by man-machine conversation mode's operation; E). described fault shows it is that the screen (or display) of digital code double-display screen curtain (or display) when breaking down is done fault display alarm, another screen (or display) is used for showing failure code, position, reason and processing method that indication fault occurs.A failure code table correspondence shows trouble location, reason and the processing method of failure code and expression thereof.Just can consult failure code table ERR 01 as two screen displays " ERR 01 " is leak current fault, and indicates trouble location, reason and processing method.ERR 08 is an open-phase fault for another example, indicates corresponding trouble location, reason and processing method at 08 in the failure code table; F). described software filtering comprises that the pseudo-diagnostic trouble code of software digital filter and software differentiates (differentiation that divides the pseudo-diagnostic trouble code signal of the differentiation of pseudo-fault interrupt signal and sampled signal), makes the interference sections in the digital information after the conversion be able to filtering; G). the plug-in type circuit board of described vacuum magnetic starter has: power supply circuit board, programme control circut plate, supervisory circuit plate, display circuit board; The memory of single chip microcomputer, storing software program etc. is wherein arranged on the programme control circut plate, and the supervisory circuit plate then is that monitoring pools together composition with supervisory circuit.H) each subprogram of described system software package have reset, initialization, parameter setting, self check (comprising pre-monitoring), parameter is handled, data are deposited, analog-to-digital conversion, parameter analysis, fault distinguishing, failure locking, operation demonstration, fault show, break in service.Wherein the parameter of She Zhiing is stored in the read-only memory of the electric erasable that power failure can not lose, and this memory is the memory of the outside expansion of single chip microcomputer.The main program of i) described self check (comprising pre-monitoring) subprogram comprises: the generation of self check code, decoding, analogue signal generating, program control self check (comprising pre-monitoring), read self check data, fault distinguishing.J) main program of described interrupt service subroutine comprises: response interruptions, on-site parameters pop down, read monitoring parameter, parameter analysis, fault distinguishing, failure locking, demonstration failure code, read to be provided with parameter, revise and parameter is set, shows and parameter is set, stores parameter (comprise and depositing in the read-only memory that electricity can wipe) is set.This interrupt service subroutine all can in time insert and carry out interrupt service subroutine according to the program in the priority interrupt run in any procedure operation of software is carried out.

Mining computer automatic vacuum magnetic starter advantage described in the utility model is: 1) this vacuum magnetic starter advanced technology of being monitored by single chip microcomputer, automaticity height; 2) the various faults of in time monitoring this vacuum magnetic starter by single chip microcomputer are carried out locking and are shut down, and make production more safe and reliable; 3) this vacuum magnetic starter by controlled by single chip microprocessor has got rid of traditional complicated heavy relay, replaces connector formula circuit board, and is easy to maintenance, must not stop production and go up well servicing; 4) by this single chip microcomputer vacuum magnetic starter is carried out a series of safety and malfunction monitoring before starting operation, can remove the hidden danger of production or equipment in advance, accomplish to prevent trouble before it happens, form the safety in production of putting prevention first.Above-mentioned some be great to mining equipment and production meaning.This vacuum magnetic starter can also be widely used in the inflammable and explosive dangerous operation environment such as chemical industry, metallurgy.

Figure of description of the present utility model is totally 11 width of cloth.The profile schematic diagram of the mining computer automatic vacuum magnetic starter of Fig. 1, embodiment 1; The structural representation of Fig. 2, the dustproof casing of starter cabinet top seal shown in Figure 1 and plug-in type circuit board thereof; Fig. 3, the overall electrical schematic diagram of starter; One of Fig. 4, plug connector formula circuit board supervisory circuit plate circuit theory diagrams; The circuit theory diagrams of Fig. 5, A shown in Figure 4 and B; The observation circuit schematic diagram that Fig. 6, the outside gas density of cabinet transfinite; Fig. 7, connector formula power supply circuit board circuit theory diagrams; Fig. 8, plug connector formula programme control circut plate circuit theory diagrams; Fig. 9, connector formula display circuit board circuit theory diagrams; Figure 10, software main program block diagram; Figure 11, software interrupt service subprogram block diagram.Because of the length relation, Fig. 1-Figure 11 is elaborated below in conjunction with embodiment.Above-mentioned each figure uses unified numbering and label, and promptly identity element is the same entirely in each number in the figure.

Non-limiting examples of the present utility model is as follows:

Example one: the mining computer automatic vacuum magnetic starter of this example is shown in Figure of description 1--11, among 11 figure: Fig. 1 illustrates its cabinet profile and bottom shop front structure, Fig. 2 illustrates cabinet top dust seal casing and connector formula board structure of circuit, Fig. 3-Fig. 9 is its circuit theory diagrams, Figure 10-Figure 11 illustrates its software block diagram, wherein Figure 10 is a main program block diagram, and Figure 11 is the interrupt service subroutine block diagram.Table 1 in the example provides the failure code table.Table 2 provides parameter code table is set.For saving space, this example content of narration is by aforesaid technical scheme style of writing below, and content explains in conjunction with the accompanying drawings.The mining computer automatic vacuum magnetic starter of this example is by 1 among conversion separation switch 1(Fig. 1,2 forwards are connected, 3 is disconnected, 4 oppositely connect) and the power line of coming in and going out (6 are outlet among Fig. 1, and 5 are lambda line) and single chip microcomputer 201(Fig. 8 201) and its vacuum magnetic starter 7-306(of controlling in Fig. 1-11) be assembled in the cabinet housing.Single chip microcomputer 201 comprises its software and hardware, and wherein software is system software package, adopts modular organization, uses the assembler language programming, and software program divides main program and each subprogram, main program with priority by various needs and request call or interrupt each subprogram.The modular organization of system software package divides main program module and each subroutine module, and they are stored in the memory of inner various functions of expanding that be provided with or outside of this single chip microcomputer and different capabilities with the modular macroassembler subroutine respectively.For example each program of modular organization can be stored in the inner read-only memory of expanding that be provided with or outside of single chip microcomputer, and these read-only memorys can be that capacity is the read-only memory of 4K, 8K, 16K, 64K ¨, have formed the system software package that solidifies.Main program block diagram as shown in figure 10, its main program has: the 257(that resets comprises electrification reset or hand-reset), system initialization 258; call self check (comprising pre-monitoring) subprogram 259; the parameter of reading to be provided with in the electrically erasable read-only memory 260, data processing 261, data deposit 262; call A/D(mould/number) conversion routine 263; call parameters analysis subroutine 264, fault distinguishing 265, normal display voltage and electric current 266; locking shuts down 267, and failure code shows 268 supervisors.Each subprogram has: reset, initialization, self check (comprising pre-monitoring), parameter setting, data processing, data are deposited, A/D(mould/number) conversion, parameter analysis, fault distinguishing, normal demonstration and indication, failure locking, fault demonstration and indication, break in service or the like.Set parameter (as each parameter of control mode, operation conditions, switch situation) can be stored in the electricity that power failure can not lose and can wipe in the permanent read-only memory, this memory also can be that capacity is 4K, 8K, 16K, 64K ..., it can be the outside expansion of this single chip microcomputer.The main program of self check for another example (comprising pre-monitoring) subprogram comprises: the generation of self check code, decoding, analogue signal generating, program control self check (comprising pre-monitoring), fault distinguishing or the like.Interrupt service subroutine for another example; its block diagram is shown among Figure 11, and its main program comprises: response interrupts 269; on-site parameters pop down 270; read monitoring parameter 271; parameter analyzes 272; leak current fault differentiates 273; leak current fault locking 274; leak current fault shows; report to the police and failure code indication 275; gas exceeding limit fault distinguishing 276 in the cabinet; gas exceeding limit failure locking 277 in the cabinet; gas exceeding limit shows; report to the police and failure code indication 278; explosion preventing gate is not closed fault distinguishing 279 tight; explosion preventing gate is not closed failure locking 280 tight; explosion preventing gate is not closed fault tight and is shown; report to the police and failure code indication 281; vacuum failure fault distinguishing 282; vacuum failure failure locking 283; the vacuum failure fault shows; report to the police and failure code indication 284; the switch condition parameter analyzes 285; read switch condition parameter value 286; switch situation fault distinguishing 287; the switch situation is normal and start 288; the switch fault locking shuts down 289; reset 290; the networking control parameter analyzes 291; read control mode parameter value 292; along control time-delay 293; joint control 294; start 295; locking shuts down 296; parameter is provided with beginning 297; show parameter 298 is set; each parameter value 299 of reading to be provided with; display update parameter value 300; revise parameter storage 301; parameter is set finishes 302; reset 303; parameter unloading 304 is set; from register, write EPROM electrically erasable read-only memory 305; reset 306.This interrupt service subroutine all can insert and carry out interrupt service subroutine according to the program in the timely interrupt run of priority in any procedure operation of software is carried out.

The hardware of single chip microcomputer comprises: the collection of monitoring and monitor message, sensing, input, conversion, transmission, networking control (networking control refers to that online, networking that information resources are shared realize that group's machine joint control links), output, locking, demonstration and indication and required each function electronic circuit and each functional memory of warning each several part, the security set on the cabinet housing--electronic lock (being the power work switch) and machine box door switch.Above-mentioned each required function electronic circuit has: sensing circuit; input circuit; sample circuit; translation circuit; change-over circuit; transmission circuit; data processing circuit; logical circuit; clock circuit; coding circuit; decoding circuit; computing circuit (comprises CPU; CPU independent or principal and subordinate or group of reaching arranged side by side or net is wherein arranged); reset circuit; output circuit; display circuit; indicating circuit; warning circuit; the failure locking circuit; drive circuit; governor circuit; memory circuit; self-detection circuit; pre-observation circuit; interface circuit; external control circuit; anti-jamming circuit; the auxiliary circuit of power circuit or the like and above-mentioned each function electronic circuit is such as rectification circuit; filter circuit; voltage stabilizing circuit; amplifying circuit; switching circuit; gate circuit; analog circuit; switch switching circuit; the CE circuit; buffer circuit; decoupling circuit; the hardware interrupts circuit; protective circuit or the like.These circuit also comprise the circuit board of assembling these circuit naturally, connect their cable, electric wire, connector, constitute their each electronic component, device, assembly, parts.These major parts have been shown among Fig. 1～Fig. 9, and wherein Fig. 3 is the circuit complete schematic of the mining computer automatic vacuum magnetic starter of this example.25～27 is the three-phase lambda line among the figure, working power will be taken out from 26,27 two-phases, 28,29 is fuse on the two-phase, switch 30 is the contactors that link with conversion separation switch 1 joint control, 31 is the transformer of working power, elementary 32～35, in addition 36 formation voltage-selected switches (being 10 among Fig. 1), secondary 37 are that 127 volts of windings are power supply roads of magnetic force attracting device (magnetic coil) 40, and attracting device 40 will drive Vacuum Magnetic switch 41 and joint control linked switch 42 moves together.In addition two groups of secondary winding 38 and 39 are 18 volts power supply sources that will become direct current+15 volt and-15 volts of each circuit workings of work.The electromagnetic sensor of information of voltage of gathering power information is by winding 38(38a and b) and resistance 148, adjustable moved end 53 constitute, wherein transformer 31 and elementary (32～36) thereof, secondary (38) winding have constituted one of contactless electromagnetic induction sensor.It is arranged on appointing on the two-phase (on 26,27 two-phases) of power supply.Be arranged on each another kind of contactless electromagnetic induction sensor of going up mutually of three phase mains, be three current transformers 43～45 gathering source current information, they are separately positioned on 25,26,27 three-phases, and they and other auxiliary element and input have constituted three corresponding sensing circuits.46 are load (as motor), the 47th, and gas air-sensitive sensing circuit in the cabinet, 48 is the outer gas air-sensitive sensing circuit of cabinet, they gather environmental information.The 50th, various transmission of Information lines of exchange or bus that connector formula supervisory circuit plate 22 and programme control circut plate are 21, the 51st, transmission line or bus between programme control circut plate 21 and the display circuit board 23, the 52nd, transmission line and bus that supervisory circuit plate 22 and power supply circuit board are 24.Be easy to maintenance and mining safety, foregoing circuit plate 21-24 is the connector formula, they are assembled in (this structure is illustrated by Fig. 2) in the sealing and dustproof casing 20, and each each plate of circuit board 21-24 of these connector formulas all scribbles moisture barrier coatings (as moisture barrier coatings such as silicon rubber) comprehensively, just also be the security set that adopts specially for safety problems such as anti-explosion fire flowers under the mine.Fig. 4 has showed the overall picture structure of supervisory circuit plate 22.Wherein, the voltage acquisition of power information is taken out by the selection adjustment end on the winding 38 53, is passed on the circuit board 22.Current acquisition is finished by every current transformer 43-45 who is provided with that goes up mutually respectively, is transported on the circuit board 22 by 54-56.54-56 and some resistance have constituted the input circuit of power information, by 53, A, B, 61,54, A, B, 62,55, A, B, 63,56, A, B, 64 have constituted the Acquisition Circuit of the voltage and the electric current of power information, and wherein the structure of filter circuit A and rectification circuit B is shown among Fig. 5.Filter circuit A promptly constitutes by 53,49,117 etc., is narrow bandpass filter circuit (is 0-100hz as bandwidth), and wherein 117 is operational amplifiers.Rectification circuit B promptly is made of 118-124,49 etc., is precise rectification circuit, as adopt the cycle differential to add up circuit that Mean Method carries out rectification, and wherein the 118, the 119th, operational amplifier, 120-122 are diodes.Above-mentioned four-way power supply information branch is transferred on the programme control circut plate 21 by 61-64, through multi-channel analog circuit, switch switching circuit 165, be defeated by sampling hold circuit 169 from 168, again through 171 to mould/number (A/D) change-over circuit 172, become digital signal and divide eight the road to enter single chip microcomputer 201 from 177-184 and carry out data processing.Wherein 166-167 is the information exchange and the control line of multi-channel analog circuit and single chip microcomputer 201, the 170th, the information exchange and the control line of sampling hold circuit 169 and single-chip microcomputer 201,173-176 then are that single-chip microcomputer 201 exchanges the line of control with mould/number conversion circuit 172.The monitoring circuit of an electric leakage by 60, A, B, 65,66,67,49 etc. constitute, wherein 60 is the power information input, A is aforesaid narrow bandpass filter circuit, B is a precise rectification circuit, 65 for operational amplifier be the main amplifying circuit that constitutes.The 66th, photoelectrical coupler serves as the main photoelectricity coupled transfer circuit that constitutes with it, and wherein 66 is to constitute transmission ends by a light-emitting diode, and another and the contactless phototriode of light-emitting diode are made information receiving end, the photoelectrical coupler of formation.The photoelectricity coupled transfer circuit of this structure is by force--on each transmission line of message transmission a photoelectricity coupling circuit is set between the light current signal.The output of this transmission circuit is 67 and 49, and this circuit can use it when vacuum magnetic starter moves.Leakage current detect circuit before magnetic starter starts is shown in Figure 7.This circuit is connected on 69 and 140 two ends by a simulation ohmic leakage, 69 ends must connect the earth, when this artifical resistance diminishes or leak current fault occurs, the control information of 140 ends makes switching tube 139 conductings, by leakage current detect signal of 68 ends output, through serving as the main photoelectricity coupled transfer circuit (70 are same as photoelectrical coupler 66 structures) that constitutes with 70 photoelectrical couplers, be passed on the monitor board 22 from 71.The 138th, bridge rectifier, directly from the inferior utmost point (39a, b) of transformer 31,139 is the main switching circuit that has constituted this leakage current detect to its information.Leak current fault information will be received on the program control plate 21 by 68,70,71.67 and 71 is two inputs of AND circuit 212, and warp and Men Congqi output 213 are passed in the buffer 215, enter coding circuit 216 then, enter 201 single-chip microcomputers from 217-220.An above-mentioned back leakage current detect circuit is one of self-detection circuit before starting.Another self-checking circuit is the vacuum failure self-checking circuit of magnetic switch 41, and this circuit is made of 141-147 and 72,73 etc.The vacuum tube position of magnetic switch 41 is 145, and is not shown in Figure 7.At vacuum tube 145 positions a pair of monitoring utmost point 143 and 146 are set, vacuum tube 145 positions are just entreated among monitoring the utmost point 143 and 146 at this.After vacuum state lost efficacy, 146 and 143 will have AC signal, this signal from electric capacity 144 Resistor-Capacitor Units such as grade through 147 bridge rectifiers after, signal is added on the monitor board 22 by 72-73.The 141st, exchange and intercept diode, the 142nd, voltage stabilizing didoe.Through 74 is the photoelectricity coupled transfer circuit that main (the 74th, photoelectrical coupler is identical with 66 structures) constitutes.To program control plate 21, through buffer circuit 215, coding circuit 216 is defeated by single-chip microcomputer 201 from 217-220 and is dealt with by 75 ends.The monitoring and the monitoring parameter of environmental aspect have: gas density transfinites in the cabinet, the outer gas density of cabinet transfinites, moistureproof, dustproof etc.The monitoring and the supervisory circuit structure of an interior gas exceeding limit of cabinet are: gas air-sensitive sensing circuit 47 in the cabinet, it is shown among Fig. 9, wherein 248 is Device in Gas dependent sensor (as the Device in Gas dependent sensor of black-and-white component), and 247 for adjusting resistance, and they constitute gas air-sensitive sensing circuit.78,79 is this sensing circuit output, is connected on the program control plate 21.163 and 49(ground end) connect power supply source (seeing among Fig. 7).On supervisory circuit plate 22, through operational amplifier 80,81 is the main amplifying circuit that constitutes, process photoelectrical coupler 82(and photoelectrical coupler 66 structures are together) be the main photoelectricity coupled transfer circuit that constitutes, export on the program control plate 21 by 83, after being input to buffer circuit 215 and coding circuit 216 from 83, being input to single-chip microcomputer 201 from 217-220 and dealing with.A monitoring and the supervisory circuit that the outer gas density of cabinet transfinites, structure is: its sensing circuit 48 has full structure together with sensing circuit 47, does not repeat.76,77 is the output of sensing circuit, all the other positions of this circuit occupy the position of D among Fig. 4, the particular circuit configurations of D figure is shown among Fig. 6,123,124 is two operational amplifiers, with them is the main amplifying circuit that constitutes, amplify separately respectively through operational amplifier 125-129 again, show that by light-emitting diode 130～134 these five light-emitting diodes are installed on the display panel 23.When they were luminous, represent that respectively the outer gas density of case reaches: 1%(luminous tube 134 was bright), 2%(luminous tube 133 is bright), ¨ 5%(luminous tube 130 is bright).The monitoring of a start stop switch 11 and supervisory circuit, from switch 11(on display circuit board 23, see Fig. 9 11 and Fig. 1 11) connect 84 and ground end 49, receive on the supervisory circuit plate 22.Be same as photoelectrical coupler 66 through photoelectrical coupler 85(structure) be the main photoelectricity coupled transfer circuit that constitutes, by 86 output monitoring signals to program control plate 21.Through buffer circuit 214 and coding circuit 216, be input to single-chip microcomputer 201 from 217-220 and be for data processing.The monitoring circuit of a door switch 19, by gate controlled switch 19(see Fig. 1 19), promptly from 87 and ground end 49 input switch signals to photoelectrical coupler 88(and photoelectrical coupler 66 structures entirely with) be the photoelectricity coupled transfer circuit of main formation, output signal on the program control plate 21 from 89, through buffer circuit 214 and coding circuit 216, this signal carries out data processing by 217-220 input single-chip microcomputer 201.The monitoring circuit of a switch situation, main monitoring Vacuum Magnetic switch 41.Because switch 42 and 41 joint controls link, promptly be monitoring to Vacuum Magnetic switch 41 to the monitoring of auxiliary switch 42.This electric routing switch 42 is held 49 input signals from 90 with ground, identical through photoelectrical coupler 91(with photoelectrical coupler 66 structures) be the main photoelectricity coupled transfer circuit that constitutes, export the monitoring information to program control plate 21 by 92, through buffer circuit 214 and coding circuit 216, be input to from 217-220 and do data analysis the single-chip microcomputer 201 and handle.The circuit of one cover networking joint control comprises shared the sharing of information resources of each micro-processor controlled magnetic starter and other machinery equipment, to realize the interlock of group's machine joint control.Wherein, many sequential controls or interlock control or centralized control are the modes of using always.This cover circuit comprises Passive Control mode (mainly being the control signal that receives external circuit, to the control of this machine), and as pressing the control to this machine of online last one (or last) of order and next (or back one) machine, this just has a pair of circuit.Also comprise ACTIVE CONTROL mode (mainly be send signal give outside Be Controlled machine), a pair of circuit that controlled by this machine to Shang Yitai (or last) and next (or back one) machine by online order.A pair of controlled circuit (it is controlled to receive control signal) structure is: a controlled signal is imported by 100-101, through with photoelectrical coupler 102(and photoelectrical coupler 66 structures entirely with) serve as the photoelectricity coupling circuit of main formation, control signal by 103 through a NOR gate 108 and export 109 and transfer on the program control plate 21.The controlled signal of another circuit is imported by 104-105, pass through with photoelectrical coupler 106(and photoelectrical coupler 66 structures same entirely) serve as 107 ends of the main photoelectricity coupled transfer circuit that constitutes, through NOR gate 108 and export 109 and be transferred on the program control plate 21, through buffer circuit 214 and coding circuit 216, carry out data processing and analysis from 217-220 input single chip microcomputer 201.A pair of governor circuit is sent by 110 of single chip microcomputer 201, divide two-way that online adjacent (appearing on the stage and the leave from office machine) two machines are controlled, signal is through phase inverter 111(or 114), through photoelectrical coupler 112(or 115)--they all have same structure with photoelectrical coupler 66--be the main photoelectricity coupled transfer circuit that constitutes, from 113,49(or 116,49) end outputs a control signal on the online controlled machine equipment.Circuit structures such as the driving of governor circuit, locking are: a start and stop control information is sent by 93 ends by single chip microcomputer 201, and the other end is sent by 94 ends by single chip microcomputer 201 then according to discriminant informations such as faults.Have only when switching tube 95 conductings, just conducting simultaneously of switching tube 96,97, just drive the driver of vacuum magnetic starter this moment, and to bidirectional thyristor 136,137 control gates, this drive circuit was shown among Fig. 7 signal via 98,99 fens two-way.Drive signal is by the 98 control grid of being defeated by thyristor 137, and another road drive signal is defeated by thyristor 136 by 99.37a and 37b are one group of secondary winding of transformer 31,127 volts winding in this way, this winding of 127 volts is anode from bridge rectifier 135 to drive magnet attracting device 40a(through 137,136 thyristors), 40b(is negative terminal) just drive 41 actions of Vacuum Magnetic switch.In Fig. 4 and Fig. 6 and other figure, label be c all connect power supply source, as be the power supply source of+15 volts or-15 volts, this power supply will 162 or 164 outputs from Fig. 7.The circuit of assembling also has clock circuit except that having narrated on programme control circut plate 21, and it serves as main formation with quartz oscillator 188, and from 189,190 and single chip microcomputer 201 systems connect.Reset circuit 12, with formations such as 185～187,49.185 is the electrification reset end, and 12 are the hand-reset button.This reset circuit and single chip microcomputer 201 pass through 187,49 lines with exchange messages such as serial modes.191 is the electrically erasable read-only memory of outside expansion, and its capacity can be 4K, 8K, 16K etc., and it is by 192～196,200 lines and single chip microcomputer 201 exchange messages.As 194 is that single chip microcomputer 201 is defeated by 191 clock information.197～199 grades are the main protective circuit that has constituted read-only memory 191.Interactive part comprises that the people is to the control section of the information input of machine and the display part that machine is answered.The people is to the input control section of machine two digital enter key 14a, b and two digital shift key 15a, b by the information input keyboard, and a parameter is provided with key 16 and a composition such as parameter storage key 17.They all are shown among Fig. 1 and Fig. 9.The input of two digital enter key 14a and 14b and two digital shift key 15a and 15b is respectively 202～205, imports one four AND circuit 206 and coding circuit 207, from 208 and 209 two ends information is imported the single chip microcomputer 201.The input that parameter is provided with key 16 and parameter storage key 17 is respectively 210 and 211, after enter buffer circuit 214 and coding circuit 216, then by 217～220 the input single chip microcomputers 201 in.Single chip microcomputer 201 carries out data processing, storage, data computation (computing), does demonstration and indication, warning (wherein also comprising demonstration, indication and the warning of various fault messages) by 221～227 output results.228 for seven-segment decoder is the main decoding circuit that constitutes, and 230 are resistance collection row, and seven segment informations output on the display panel 23 by 232～238 and show.This display panel 23 is illustrated by Fig. 9.229 for the decoding distributor is the main decoding distributor circuit that constitutes, and 231 are resistance collection row, and 239～246 is output.Receive on the display panel 23 by 232～246 outputs that constitute.Wherein 232～238 7 sections inputs have constituted and have shown that four codes (as English or the Chinese code that the sound letter does of abandoning) and a display screen (or display) of digital (Arabic numerals) are 7 among Fig. 1 with 239,240,241,242 respectively, another four codes are or/and the display screen (or display) of numeral, be 8 among Fig. 1, the demonstration of numeral or code is made of with 243,244,245,246 respectively seven sections inputs 232～238.Double-display screen curtain (or dual screen) 7 and 8 has constituted second half of human-computer dialogue mechanism--and machine is answered structure.The magnitude of voltage of real-time working when described display circuit and indicating circuit comprise operation (showing), current value (showing) by display screen 8 by display screen 7, and the light-emitting diode 130,131,132,133,134 of the outer gas density of cabinet shows and indication (they that luminous outer gas densities of real-time cabinet that just indicates).In the failure locking, make fault by a digital code display screen (or display) and show, report to the police when breaking down, another screen (or display) is then with failure code indication, position, reason and processing method that fault occurs.Failure code table 18 correspondence shows that position, reason and processing method appear in the fault of failure code and its expression.Foregoing when breaking down, for example a screen (or display) 7 shows ERR, and another screen (or display) shows 01, or 08, or 013, can find appearance position, reason and the processing method of shown 01,08,013 fault from failure code table 18.This failure code table 18 is listed in down:

From this failure code table as can be known: 01 is leak current fault, and 08 is open-phase fault, and 013 is the monitor board fault ...(see figure 7) on the power supply circuit board 24 has been concentrated the power supply source of each electronic circuit.Wherein constitute one group of malleation power supply source by 38a, b, 148～154; Taking out voltage can be+12 volts～+ 30 volts (for example being+18 volts), the 149th, and bridge rectifier, the 150, the 151st, adjust Guan Weizhu and constitute the adjustment circuit, 152,153 is voltage stabilizing didoe, and 154 is three terminal regulator, and it carries out DC converting.Can be from+9 volts～+ 25 volts voltages of 162 outputs, it is 18 volts that corresponding 38a, b hold, 162 ends are exportable+and 15 volts.Constitute another group negative supply by 39a, b, 156～161, structure is same as the malleation power supply source, takes out voltage and can be-12～-30 volts (for example-18 volt), 156 is bridge rectifier, 157,158 for adjusting pipe, and 159,160 is voltage-stabiliser tube, and 161 to be same as 154 are three terminal regulators.The negative terminal of malleation power supply source () be connected to ground 49 with the anode of negative pressure power supply source, then from exportable-9 to-25 volts negative voltage of the negative terminal 164 of negative pressure power supply source, when corresponding 39ab is 18 volts, 164 exportable-15 volts of negative supplies, 155 is the DC-DC converter, and they can be purchased from the shop.From 163 be output as+5 volts ,+6 volts ,+voltages such as 9 volts, can pass through electronic lock 13(switch as 163) to power supplies such as single-chip microcomputer 201, clock circuits.37, a, b, 40, a, b, 98,99,135-137 have constituted the power supply source of drive circuit.Another group 39ab, 138,139 etc. has constituted the power supply source of detection of electrical leakage before magnetic switch starts.162,163,164 etc. of above-mentioned each circuit is main as each electronic circuit of this vacuum magnetic starter power supply source of (comprising auxiliary circuit and single chip microcomputer), and C end (seeing Fig. 4, Fig. 6 etc.) can be its power supply source by 162 etc. as the aforementioned.For single chip microcomputer 201, for example it can be 4,8,16 a microcomputer, it is comprising internal memory, as internal memory and multidigit CPU such as 4K, 8K, 16K can be arranged, also have multiple circuit such as data processing, digital operation, data-storing, in fact itself be exactly the electronic calculator (or processor) of a monolithic be main solid state circuit sheet, be integrated with the circuit of multiple function, as logical circuit, computing circuit, treatment circuit, internal memory etc.

Except that the hardware and software of above-mentioned single chip microcomputer, the vacuum magnetic starter of this controlled by single chip microprocessor also has some security set.At first, the cabinet of the vacuum magnetic starter that this is routine must meet explosion-proof flame proof requirement with electronic circuit wherein, and promptly it is explosion-proof double intrinsically safe type.Next is the electronic lock 13 of control power work switch, when electronic lock 13 is opened, and electronic circuit working power switch opens; When electronic lock 13 was closed, the electronic circuit mains switch turn-offed.Another security set is a gate controlled switch 19, if the outer gas density of cabinet surpasses safety index, when door was opened, electronic circuit may cause that ring is fiery fried owing to surpass in the gas leading-in box of safety index in the cabinet.So when machine box door was opened, promptly switch 19 disconnected, and just sends fault-signal, carries out failure locking, outage is shut down and is done the fault demonstration and reports to the police.The security set of cabinet comprises that also connector formula circuit board 21-24 all concentrates in the dust proof box, and coats moisture barrier coatings on each circuit board comprehensively, as silicone rubber coating, guarantees circuit board protection against the tide, dustproof, anti-explosion safety.

The vacuum magnetic starter of above-mentioned controlled by single chip microprocessor that should example relies on its hardware and software joint operation, and the mechanism of formation has: a, human-computer dialogue mechanism: by the relevant function key of the keyboard of interactive input information: digital code enter key, digital code shift key, parameter are provided with that key, parameter storage key and two display screens (or display) can show four codes or/and the double-display screen curtain (or dual screen) of numeral and corresponding software programs compounding practice formation.Setting, the selection of the wide codomain scope of various parameters, revise, call, monitor and monitor, realize or finish and call and monitor in real time and monitoring by its software systems, hardware system compounding practice, memory stores and memory that be provided with by its inside or the outside expansion.The various parameters that are provided with have: the local control of the separate unit of control mode, separate unit Long-distance Control, many sequential controls, multiple linkages control, many centralized control, master control, controlled, main circuit commutation, system reset operation etc.The Control Parameter of control mode has: rated voltage with load, load rating electric current, along control time of delay, overload time of delay, under-voltage separating brake time of delay etc.Operation conditions has: local control, Long-distance Control, many are along control, the control of many All-China Federation of Taiwan Compatriots, centralized control, master control, controlled, parameter setting, failure locking etc.The Control Parameter of operation conditions: rated voltage, rated current, along control time-delay, overload time-delay, under-voltage separating brake time-delay, electric leakage, short circuit, ground connection, phase shortage, the phase failure, overload, superpressure, under-voltage, laod unbalance (voltage between phases imbalance) etc.The parameter of environmental aspect has: gas exceeding limit in the cabinet, the outer gas exceeding limit of cabinet, protection against the tide, dustproof etc.The parameter of switch situation has: machine box door switch, start and stop Control Failure, Vacuum Magnetic switch situation, magnetic switch inefficacy etc.B, from detecting or self diagnosis mechanism: before this vacuum magnetic starter starts, single chip microcomputer carries out from detecting or self diagnosis the operating characteristics of each function electronic circuit of self and hardware thereof, comprise that from detection or self diagnosis scope monitoring and monitor message are from gathering, sensing, input is up to output, locking, show, the electronic circuit of indication and warning overall process, these electronic circuits also comprise: each functional memory, the interface circuit of single chip microcomputer and networking control, external control circuit, this mechanism is by the software systems of single chip microcomputer, each memory and each function electronic circuit compounding practice constitute and realize carrying out locking when fault occurs from detection or self diagnosis and malfunction monitoring, show, reporting to the police also, the position appears in indication fault, reason and processing method.C, pre-mechanism for monitoring: before this controlled by single chip microprocessor vacuum magnetic starter started, the project that single chip microcomputer is monitored each parts of starter (comprising the Vacuum Magnetic switch), power supply, environment, security parameter had: electric leakage, the phase failure, phase shortage, superpressure, under-voltage, voltage between phases is unbalance, the outer gas exceeding limit of gas exceeding limit cabinet, machine box door switch, magnetic switch vacuum failure etc. in the cabinet.This mechanism is constituted and is realized starting position, reason and the processing method (by the failure code table) of preceding a series of pre-monitoring and malfunction monitoring, failure locking, demonstration, warning and indication fault appearance by self check subprogram, each memory and each function electronic circuit compounding practice of the software systems of single chip microcomputer; D. monitor in real time and monitor control mechanism: when this routine vacuum magnetic starter starts operation, as required the parameter of the parameter of the control mode set and parameter, operation conditions and parameter, environmental aspect, switch situation is monitored in real time and monitored and to the malfunction monitoring of above-mentioned each parameter, this mechanism is made of software systems, each memory and each function electronic circuit compounding practice of single chip microcomputer and finishes or realize monitoring in real time and monitoring.To failure locking, demonstration, the warning that occurs, and point out position, reason and the processing method that fault occurs.From this example as can be seen, the treatment circuit of analog information comprises: formations such as rectification circuit, filter circuit, amplifying circuit, switching circuit, gate circuit, sample circuit, multi-channel analog circuit, switch switching circuit, sampling hold circuit, mould/number (A/D) change-over circuit; Digital information processing circuit after mould/number (A/D) conversion has: coding circuit, decoding circuit, logical circuit, reset circuit, data processing circuit, computing circuit (comprising CPU), clock circuit, buffer circuit, hardware interrupts circuit etc.For another example: anti-jamming circuit comprises: photoelectricity coupled transfer circuit, power source deoupling circuit, hardware filtering circuit, voltage stabilizing circuit and software filtering.Wherein software filtering comprises software digital filter, the pseudo-diagnostic trouble code differentiation of software (comprising the differentiation and the pseudo-diagnostic trouble code differentiation of sampled signal of the pseudo-diagnostic trouble code interrupt signal of software) etc.

This routine described control operation detailed content is:

One. local start stop operation process: 1. connect the three-phase electrical source of power; 2. open electronic lock; 3. be provided with or revise parameter; 4. by reset key (voltage shows normal, and electric current is zero); 5. by the start and stop button; 6. equipment starts or stops;

Two. Long-distance Control: guide RCI into a distant place with cable, carry out the start and stop control operation with the start stop operation box of distant place cable socket;

Three. many along controlling: during many suitable controls, first is provided with parameter is master control, and all the other are provided with parameter is controlled, control interface is pursued platform with connecing, be provided with respectively along the control delay time, after all resetting, can be by first start and stop button along many of controls by the platform starting, wherein arbitrary when shutting down, all shut down;

Four. multiple linkage control: each is provided with parameter and is joint control, and joint control mode in accordance with regulations connects control cable, in order respectively separately by opening/stop the push button start operation.Reverse order operation when starting during shutdown, shutting down for arbitrary only can influence thereafter each, not influencing front stage work;

Five. centralized control: many all are provided with parameter is controlled mode, and the cable of control interface is guided integrated console or main frame control Peripheral Interface into, carries out start and stop control by concentrated message.

What need explanation a bit is plate circle of the frame of broken lines domain representation circuit board 22,24,21,23 in Fig. 4, Fig. 7～Fig. 9.

The mining computer automatic vacuum magnetic starter course of work of this example is as follows: suppose that this vacuum power starter has inserted power line, and the three-phase power line 25--27 of 1140V/660V/380V, their outlet connects a three-phase alternating current load (as motor).Open the cabinet explosion preventing gate, power selection switch 10 is placed on the power line correspondent voltage shelves that enter (as the 380V shelves), at first carry out the parameter setting; If the past was not provided with, presses parameter key 16 is set; The group of four figures or/and the double-display screen curtain 7 and 8 of numeral shows respectively: SET " 0 " and " 0000 ", wherein quotation marks " " expression flash of light shows, the figure place showing sign indicating number of promptly setting, revising or select is " 0 " at this moment.If press digital code key 14a once, " 0 " becomes 1, and secondary is 2 ..., nine times is 9, become 8 if press digital code key 14b once by 9 this moment ..., or the like.14a is that digital code increases key, and 14b is that digital code reduces key.According to parameter code table (seeing Table 2) is set, SET1 represents to set load current value as can be known, and SET5 sets control mode or the like.As establish

It is 150A that quota is decided current value, screen 7 shows: SET1, four is 0000 on the screen 8, by digital code shift key 15b(right shift), make the flicker bit move on to the left-hand side figure place 0000 of screen 8, continue to press the 15b(right shift), the flicker bit is moved on on two of 0000 the left-hand sides of screen 8, press digital code key 14a once this moment, increase to 0100, press 15b more once, the flicker bit moves on on left several the 3rd, press 14a this moment, make three of the left-hand sides (promptly ten on) become 0150, this moment, screen 7 and 8 showed jointly: SET 1.0150, and promptly rated working current value is set at 150A, press parameter this moment and storage key 17 is set deposits in the parameter of this setting interior if in the read-only memory that extends out, other parameter (as SET5 etc.) can be set then.In a word, the step that parameter is set is: 1). press parameter key 16 is set, enter the parameter setting program; 2). 14a(increases by the digital code key), 14b(subtracts), numerical shift key 15a(is to shifting left), the 15b(right shift), according to the parameter value of parameter code table and needs, be provided with and show this parameter value; 3). press parameter storage key 17, in the parameter stored into memory that is provided with; 4) .1)-3) step repeats all parameters can be set; 5). screen 7 and 8 is shown: during SET0.0000, press the parameter storage key, promptly withdraw from parameter subprogram is set, enter monitoring and monitoring subroutine.Screen 7 and 8 shows real-time voltage and current value respectively.Suppose that parameter sets up, it is as follows to continue operation: shut explosion preventing gate, put cabinet upper isolation switch 1 for just leading to 2 or anti-logical 4, main circuit send, monitoring electric leakage (68-71,39, a, b, 138-140,212,213,215-220 and 201 work) fault and magnetic switch vacuum failure (72-75,141-147,212,213,215-220,201 work) fault detect automatically.Press reset button 12, under the control of software self check subprogram, sequencing ground carries out from detecting or self diagnosis microcomputer self and each circuit of hardware, and to each parts of starter, power supply, following each parameter of environment: superpressure, under-voltage, phase shortage, the phase failure, voltage between phases loss of equilibrium (43-45,53-64, each A and B, 165-184 work), gas density transfinites (47 in the cabinet, 78-83,162,247-248 and 291 work), the outer gas density of cabinet transfinites (148,76-77,123-130 work), machine box door switch (19,87-89,215-220,201 work) monitor in advance, it is a series of from detection or self diagnosis and the pre-monitoring of safety that this equipment is finished before startup, break down and carry out locking, and do the failure code demonstration, point out that the position appears in fault, reason and processing method.Supposing has fault to occur, as showing on the screen 7: err, show on the screen 8: 08, failure code table 18 by table 1, checking in this fault is phase shortage, open phase fault, the reason that occurs is the phase shortage or the phase failure, and the position is a three-phase power line, and processing method is: check the three-phase power line whether phase shortage or the phase failure.Processing method can be proceeded operating process after fixing a breakdown like this.Perhaps from detecting and the no any fault of pre-monitoring, press control start and stop button 11, through photoelectricity coupled transfer circuit 84-86 etc., buffer circuit 214, decoding circuit 216, control signal is entered after single chip microcomputer 201 is for data processing by 217-220, control switch circuit 93-99 action, make bidirectional triode thyristor drive circuit 37a, b, 135-137 work, drive electromagnetic attracting device 40, a, b, Vacuum Magnetic switch 41 is closed a floodgate, and equipment 46(is motor in this way) operation, microcomputer enters monitoring and the running status of monitoring.Screen 7 and 8 shows real-time voltage and current value respectively.9--is light-emitting diode 130-134, some or luminous together, show the outer gas density situation of cabinet.As 134 bright, representing the outer gas density of case is 1%.As at this moment, the emerged in operation leak current fault, fault message is from power supply 60 inputs, see Fig. 5 through rectification circuit A, filter circuit B(), amplifier 65, photoelectrical coupler 66, by 67 through AND circuit 212, be defeated by buffer circuit 215 from 213, decoding circuit 216 is defeated by single chip microcomputer 201 from 217-220 and is for data processing and judges.Then, by switching circuit 93-99 action, control Driver Circuit 37a, b, 135-137,40 actions make the Vacuum Magnetic switch lock that break, carry out the failure locking shutdown.Meanwhile, single chip microcomputer 201 is from the coding circuit 228,229 of 221-246 etc., and the output failure code shows.Show from screen 7 and 8: err(screen 7), 01(screen 8), can check in from failure code table 18, this fault is a leak current fault, and detects position, reason and processing method that this fault occurs.Close fit software program in this hardware operation process.In this fault distinguishing, called data processing subprogram 261, storage subroutine 262, parameter analysis subroutine 264, fault distinguishing subprogram 265, failure locking subprogram 267, (referring to Figure 10 and Figure 11) such as fault display subroutine 268 and interrupt service subroutine 269-275, this failure judgment, locking, demonstration are just satisfactorily finished.After getting rid of leak current fault, press reset button 12, equipment is under single chip microcomputer 201 controls, at first be the detection certainly and pre-monitoring before starting, start back operation under monitoring and monitoring, as having occurred fault again, fault is shown as err, 013 on the double screen 7 and 8, looks into failure code table 18 and knows that this fault is the fault of supervisory circuit plate 22.When getting rid of this fault, earlier isolation reversing switch 1 is put and ' 3 ' position (neutral gear), opened explosion preventing gate, change supervisory circuit plate 22 in cabinet 20, shut explosion preventing gate after finishing, can operate again, this vacuum magnetic starter starts operation again.Before above-mentioned the startup and several faults of emerged in operation.Other fault, as gas density in superpressure, under-voltage, overload, laod unbalance, the cabinet transfinite, machine box door switch, switch situation are malfunctioning, magnetic switch vacuum failure or the like fault, limit because of length, do not lift one by one.All failure processes at first are fault information through single chip microcomputer 201 differentiation that is for data processing.If fault is just carried out locking, is shown and indication.In fault distinguishing, under the close joint operation of software and hardware, finish.When treating that this vacuum magnetic starter work is finished, again by a start stop switch 11, then 201 a series of control procedure outages are shut down through single chip microcomputer.If should the example starter be main control computer; then its shutdown will be controlled the device powers down shutdown (in this way along control or joint control or central controlled) of many joint controls; this control information is sent from 110 by single chip microcomputer 201; through photoelectricity coupling circuit 111-112 or 114-115 and interface circuit 113,49; 116,49, go to control many controlled machinery equipments.If starter that should example is controlled; it will shut down under main control computer control in outage; process is that manipulated signal is by photoelectricity coupled transfer circuit 100,101 or 104,105 inputs; arrive buffer circuit 214 through 109; decoding circuit 216; from 217-220 to the single chip microcomputer 201, control switch circuit 93-99 and drive circuit 37a, b, 135-137,40a, b do locking and shut down then.

Example two: this routine vacuum magnetic starter is formed a control system by two.Wherein one as example one described system controlled by computer vacuum magnetic starter, seldom gives unnecessary details.This does local control.Another is a Long-distance Control, and this becomes networking joint control or suitable control with local of controlling.This of Long-distance Control also is monolithic processor controlled.This single chip microcomputer is 12, and eight single chip microcomputer structures of it and example one are unanimous on the whole, and its internal memory ROM capacity is 16K, and it also has the electrically erasable read-only memory capacity that extends out is 8K, with single chip microcomputer with the parallel mode exchange message.Its peripheral circuit, multi-channel analog circuit, switch switching circuit, mould/number (A/D) change-over circuit are combined on the integrated circuit (IC) chip.The human-computer dialogue structure of this single chip microcomputer is a large-scale keyboard, and ten of digital input keys are arranged, and operates 0,1,2 respectively ... 9, the input alphabet key several, can operate phonetic transcriptions of Chinese characters letter, group speech, group sentence and English alphabet, group speech, group sentence.Symbolic key several, such as punctuation mark, decorative sign (as the lace symbol, the symbol of pattern), mathematic sign, phy symbol, chemical symbol, astronomy, geography, symbols such as medical science also have the upper and lower, left and right shift key.Above-mentioned various function key adds software program, and this keyboard can be imported various texts and pictures information.Also have parameter that key is set in addition, parameter storage key etc., display is the large screen display of single screen.This display can show several rows, some row literal, letter, character, words and phrases etc. simultaneously.Can show normal real-time various parameters and numerical value thereof by instruction, show fault title, position during fault, reason and processing method occur.The vacuum magnetic starter of this Long-distance Control, the parameter of the parameter of its control mode and parameter, operation conditions and parameter, environmental aspect, switch situation, detecting certainly or setting, the selection of the system software package of each subprogram of the monitoring when self diagnosis content and pre-monitoring project and parameter, operation and monitoring parameter, software section, curing, parameter setting, revising, call, monitor and monitor before starting, the various function electronic circuits of all hardware, the memory that comprises various functions is same as the vacuum magnetic starter of example one described controlled by single chip microprocessor entirely.Above-mentioned two machines can be formed joint control relation or do master control by of this locality control, and one of Long-distance Control is controlled.

Example three: the vacuum magnetic starter of the described controlled by single chip microprocessor of this example has some, every vacuum magnetic starter is controlled by a single chip microcomputer, and some of these monolithic processor controlled vacuum magnetic starters are interconnect plane joint control or along control or centralized control form in groups.Each single chip microcomputer can be the mixing collective of 16,12,8,4 microcomputers, and they can have the internal memory of 4K, 8K, 12K, 16K, 64K or the memory that extends out, as read-only memory and electrically erasable read-only memory.Human-computer dialogue mechanism can be as in the example one or described in the example two, and the hardware and software of each single chip microcomputer is complete described in example one.

Claims (3)

1, a kind of mining computer automatic vacuum magnetic starter, vacuum magnetic starter by conversion separation switch and come in and go out power line and single chip microcomputer and its control is assembled in the cabinet housing, single chip microcomputer comprises its software and hardware, wherein software is system software package, hardware comprises the collection of monitoring and monitor message, sensing, input, conversion, transmission, handle, networking control, output, locking, show, each function electronic circuit that indication and warning each several part are required and each required functional memory, security set on the cabinet housing and the circuit board of assembling them, the cable that connects them, electric wire, connector, constitute their electronic component, device, assembly, parts is characterized in that:

A. this vacuum magnetic starter of described controlled by single chip microprocessor is the flame proof intrinsically safe type of holding concurrently;

B. each function electronic circuit that described single chip microcomputer hardware comprises has: sensing circuit, Acquisition Circuit, input circuit, sample circuit, transmission circuit, change-over circuit, translation circuit, data processing circuit, logical circuit, clock circuit, coding circuit, decoding circuit, computing circuit (comprising cpu), reset circuit, output circuit, display circuit, indicating circuit, warning circuit, the failure locking circuit, drive circuit, governor circuit, memory circuit, self-checking circuit, pre-observation circuit, interface circuit, external control circuit, anti-jamming circuit, power circuit and their assistant electronic circuit, above-mentioned these circuit connect the hardware components of having formed this single chip microcomputer together by function;

The system software package of c, described single chip microcomputer adopts modular organization, the programming of use assembler language, software program divides main program and each subprogram, main program calls with priority with request on demand or interrupts each subprogram, and system software package can be stored in the memory of the inner difference in functionality of expanding that be provided with or outside of single chip microcomputer, different capabilities;

Safety device on d, the described cabinet housing comprises latch switch and cabinet gate controlled switch of this vacuum magnetic starter working power, they be separately positioned on the cabinet housing or its door on;

E, human-computer dialogue mechanism: described single chip microcomputer has the control mode of this vacuum magnetic starter: the local control of separate unit, the separate unit Long-distance Control, many sequential controls, multiple linkage control, many centralized control, master control, controlled, the major loop commutation, system reset operation, the Control Parameter of these control modes has: rated voltage with load, the load rating electric current, along controlling time of delay, transship time of delay, under-voltage separating brake time of delay, the operation conditions of control has: local control, Long-distance Control, many along control, the control of many All-China Federation of Taiwan Compatriots, centralized control, master control, controlled, parameter is provided with, failure locking, the Control Parameter of these operation conditionss has: rated voltage, rated current, along the control time-delay, the overload time-delay, under-voltage separating brake time-delay, electric leakage, short circuit, ground connection, phase shortage, the phase failure, overload, superpressure, under-voltage, laod unbalance, the environmental aspect parameter of control has: gas exceeding limit in the cabinet, the outer gas exceeding limit of cabinet, moistureproof, dustproof, the switch condition parameter of control has: the machine box door switch, the start and stop Control Failure, the Vacuum Magnetic on off state, the magnetic switch vacuum failure, above-mentioned control mode and parameter, operation conditions and parameter, the parameter of environmental aspect, the setting of the wide codomain scope of the parameter of switch situation, select, revise, call, monitoring is finished by human-computer dialogue mechanism with monitoring or is realized, promptly the mechanism that is made of the relevant function key of keyboard of single chip microcomputer configuration and display and software program compounding practice finishes or realizes, by the inside of this single chip microcomputer memory stores or memory that be provided with or outside expansion, software systems by this single chip microcomputer, each memory and each function electronic circuit compounding practice call, and realize monitoring in real time and monitoring;

F, detect certainly or self diagnosis mechanism: before this vacuum magnetic starter starts, single chip microcomputer carries out from detecting or self diagnosis the operating characteristics of each function electronic circuit of self and hardware thereof, detects certainly or the self diagnosis scope comprises that monitoring and monitor message are from collection, sensing, input each electronic circuit up to output, locking, demonstration, indication and warning overall process.(comprising: the interface circuit of each functional memory, single chip microcomputer and networking control, external control circuit).This mechanism is made of software systems, each memory and each function electronic circuit compounding practice of single chip microcomputer and realizes from detection or self diagnosis and malfunction monitoring, carries out locking, demonstration, warning and indication fault when fault occurs and position, reason and processing method occur;

G, pre-mechanism for monitoring: before this vacuum magnetic starter starts, single chip microcomputer is to each parts of starter (comprising the Vacuum Magnetic switch), power supply, the project that the environmentAL safety parameter is monitored in advance has: electric leakage, the phase failure, superpressure, under-voltage, the voltage between phases imbalance, gas exceeding limit in the cabinet, the outer gas exceeding limit of cabinet, the machine box door switch, the magnetic switch vacuum failure, this mechanism is by the software systems of single chip microcomputer, each memory constitutes with relevant function electronic circuit compounding practice and realization starts preceding monitoring in advance and malfunction monitoring, failure locking, show, report to the police and point out that the position appears in fault, reason and processing method;

H, monitoring and monitor control mechanism in real time: when this vacuum magnetic starter starts operation, single chip microcomputer is monitored in real time and is monitored the parameter of the parameter of the control mode set and parameter, operation conditions and parameter, environmental aspect, switch situation as required and to the malfunction monitoring of above-mentioned each parameter, and this mechanism is made of software systems, each memory and each function electronic circuit compounding practice of single chip microcomputer and finishes or realize monitoring in real time and monitoring; Shut down locking, demonstration, warning when breaking down, and point out position, reason and processing method that fault occurs.

2, the described mining computer automatic vacuum magnetic starter of claim 1 is characterised in that:

A. its sensing element of the sensing circuit of described power information is contactless electromagnetic induction sensor; The sensing circuit of described environmental information mainly is the sensing circuit of gas information, and its sensing element is the Device in Gas dependent sensor;

B. described transmission circuit is all by force--between the light current signal mutually transmission information all adopt contactless photoelectricity coupled structure, form photoelectricity coupled transfer circuit;

C. the treatment circuit of described digital information comprises: coding circuit, decoding circuit, logical circuit, reset circuit, data processing circuit, computing circuit (comprising cpu), clock circuit, buffer circuit, hardware interrupts circuit; The treatment circuit of described analog information comprises: filter circuit, rectification circuit, amplifying circuit, switching circuit, gate circuit, multi-channel analog circuit, switch switching circuit, sampling hold circuit, modulus (A/D) change-over circuit; And above-mentioned each circuit connects into the structure of function.

D. described interactive parameter sets up an organization and by parameter key, digital code enter key, digital code shift key, parameter storage key is set and cooperates with digital code double-display screen curtain (or dual screen) and form;

E. described display circuit and indicating circuit comprise: indication and demonstration that the outer gas density of the real-time voltage during operation, electric current and cabinet transfinites; Failure code when breaking down shows, reports to the police and points out failure cause, position and processing method;

F. described drive circuit is the drive circuit of Vacuum Magnetic switch, and this drive circuit is that the master constitutes by contactless bidirectional triode thyristor;

G. described system software package adopts modular organization, divide main program module and each subroutine module, they are stored in the inner read-only memory of expanding that be provided with or outside of this single chip microcomputer with the modular macroassembler subroutine respectively, have formed the cure system software kit of this single chip microcomputer;

H. described anti-jamming circuit comprises: photoelectricity coupled transfer circuit, decoupling circuit, hardware filtering circuit, voltage stabilizing circuit and software filtering;

I. each function electronic circuit (comprising memory circuit) of this vacuum magnetic starter is by the needs of operation, maintenance, assembling, be assembled in respectively on the some connector formula circuit boards, these connector formula circuit boards are installed in the dustproof seal case, and these plug-in circuit cards scribble moisture barrier coatings comprehensively;

J. described from detection or self diagnosis and pre-mechanism for monitoring: the single chip microcomputer of this vacuum magnetic starter is to the detection certainly of each function electronic circuit of self and hardware thereof or self diagnosis with to each parts of vacuum magnetic starter, power supply, the pre-monitoring that the environmentAL safety parameter is carried out is to produce fault simulation information in order to program control fault and pre-each parts of monitoring vacuum magnetic starter from detection or each function electronic circuit of self diagnosis hardware by self check subprogram control bidirectional triode thyristor, power supply, the mechanism of the fault of each parameter of environment;

When the electronic lock of security set is opened on the k. described cabinet housing, connect the working power of electronic circuit, disconnect the working power of electronic circuit during shutoff; Security set on the cabinet housing comprises that also all circuit boards all scribble moisture barrier coatings comprehensively and they are installed in the dust proof box.

3, mining computer automatic vacuum magnetic starter as claimed in claim 2 is characterised in that:

A. described power information non-contact type electromagnetic induction sensor comprises that one is appointed the transformer that is provided with on the two-phase and each is provided with a current transformer on mutually at power supply at power supply;

B. described by force--between the light current signal mutually the photoelectricity coupled transfer circuit of transmission information be mainly to constitute with the photoelectrical coupler.The circuit of this structure is provided with one on each transmission line;

The rectification circuit of c. described analog information treatment circuit is that operational amplifier is the main precise rectification circuit that constitutes, and filter circuit is the narrow bandpass filter circuit;

D. described digital code double-display screen curtain (or display) is that each screen (or display) shows four codes or/and the display screen (or display) of numeral; The parameter setting is provided with the parameter code that code table indicates by parameter and finishes by man-machine conversation mode's operation;

E. described fault shows it is to make the fault symbol by a screen (or display) of digital code double-display screen curtain (or display) to show when breaking down, meanwhile, another display screen (or display) is then used position, reason and the processing method of failure code indication fault appearance; A failure code table correspondence is indicated position, reason and the processing method that the fault of failure code and its expression occurs;

F. described software filtering comprises that the pseudo-diagnostic trouble code of software digital filter, software differentiates (differentiation that divides the pseudo-fault-signal of the differentiation of pseudo-diagnostic trouble code interrupt signal and sampled signal);

The connector formula circuit board of g. described computer automatic vacuum magnetic starter has: power supply circuit board, supervisory circuit plate, programme control circut plate, display circuit board;

H. each subroutine module of described system software package has: system reset, initialization, parameter setting, self check (comprising pre-monitoring), data processing, data are deposited, analog-to-digital conversion, parameter analysis, fault distinguishing, failure locking, operational factor demonstration and indication, fault demonstration and indication, break in service, parameter wherein is set is stored in the electrically erasable read-only memory that power failure can not lose, this memory is the memory of the outside expansion of single chip microcomputer;

The main program of i. described self check (comprising pre-monitoring) subprogram comprises: the generation of self check code, decoding, analogue signal generating, program control self check (comprising pre-monitoring), read self check data, fault distinguishing;

J. the main program of described interrupt service subroutine comprises: response interruptions, on-site parameters pop down, read that monitoring parameter, parameter analysis, fault distinguishing, failure locking show, the failure code indication, read to be provided with parameter, revise and parameter is set, shows and parameter is set, stores parameter (comprise and depositing in the electrically erasable read-only memory) is set; This interrupt service subroutine all can in time insert and carry out interrupt service subroutine according to the program in the priority interrupt run in any procedure operation of software is carried out.

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