CN2626120Y

CN2626120Y - Monitoring apparatus for preventing misdelivery of current in electric power overhaul

Info

Publication number: CN2626120Y
Application number: CN 03216326
Authority: CN
Inventors: 叶卫合
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-07
Filing date: 2003-04-07
Publication date: 2004-07-14
Anticipated expiration: 2013-04-07

Abstract

An electric power examining and repairing anti miscarriage monitoring device belonging to the remote technical field is used to solve the problems of long distance control by the maintainer and preventing the miscarriage of the electricity. The technic proposal is that: the utility model comprises two parts of a locale control and a base station control, electric signals transmitted between the locale control and the base station control are connected by GSM network flat of a mobile communicating system. The locale control part comprises a wireless module, an electricity conversion circuit, a singlechip, an outspread interface, a keyboard and a monitoring circuit; the base station control comprises a wireless module, an electricity conversion circuit, a singlechip, a memorizer, an optoelectronics isolation drive circuit, a relay, a monitoring circuit. The utility model can lock or unlock a power cut circuitry switching control circuit according to the signal given by the locale builders, so the power circuitry can not produce equipment damage and personal injury accident due to the miscarriage of the electricity when in operation.

Description

A kind of electric power overhaul current misdelivery proof supervising device

Technical field

The utility model relates to a kind of device of controlling the switching of power supply circuit combined floodgate control loop, belongs to the automatic control technology field.

Background technology

At present; the breaker open operation in electric substation's (station), the switchgear house is generally adopted in the maintenance of electric substation's (station), switchgear house outlet line; line outage; the line maintenance workman carries out upkeep operation in the ground wire protection range after the dead line two ends hanging earthing conductor that is overhauled carries out the operation area segment protect.After finishing upkeep operation, the maintenance circuit is recovered to send electricity again, when sending electricity by manually directly carrying out or being undertaken by control device.In real work, often there is the situation of overhauling many supply lines simultaneously to take place, need disconnect many circuit breakers simultaneously.And many line maintenances generally can not finish at one time, will be especially careful when restoring electricity for each bar circuit like this, in order to avoid the circuit that has not overhauled is misdelivered.But, circuit breaker send electric situation if taken place to close when circuit has earth connection, will form and directly send electricity in metallic earthing, except that equipment is impacted, the serious accident that can cause casualties also to the work high above the ground personnel of the supply line that do not have safety measure.Based on above reason, electric substation's (station), switchgear house current misdelivery proof are problems in the research always.Can get rid of human factor, thoroughly stop misdelivery electricity to the safety in production of electric substation's (station), switchgear house, protection maintenance worker's life, protect aspects such as power supply unit will play important role.

Summary of the invention

The utility model promptly be provide in order to solve the problems of the technologies described above a kind of can be by line maintenance personnel far distance controlled, can prevent this type of wrong electric power overhaul current misdelivery proof supervising device that takes place.

The technical scheme that addresses the above problem is:

A kind of electric power overhaul current misdelivery proof supervising device, it is made up of field control and base stations control two parts, and the signal of telecommunication that is transmitted between field control and the base stations control carries out wireless connections by the GSM network platform, wherein:

A. field control part

It by gsm wireless module 1, level shifting circuit 2, single-chip microcomputer 3, extend out interface 4, keyboard 5, supervisory circuit 6, power adapter circuit 7, display circuit 8 and form; The TXD port of wireless module 1 connects the input of the voltage comparator of level shifting circuit 2, and the output of voltage comparator connects the RXD port of single-chip microcomputer 3, and the RXD port of gsm wireless module 1 connects the TXD port of single-chip microcomputer 3 behind voltage-stabiliser tube; The P1.0 of single-chip microcomputer 3, P1.1, P1.2 port connect CLOCK, DATA, the LOAD port of the display driver in the display circuit 8 respectively, RESET, P1.3 port connect RESET, the WDI port of microprocessor monitors circuit 6 respectively, WR, RD, P0, P2.6 port join with the WR that extends out interface 4, RD, AD0-7, CS port respectively, extend out the RESET port of interface 4 and the RESET port of supervisory circuit 6 and join, extend out interface 4 and also be electrically connected with keyboard 5; The output of power adapter circuit 7 connects the power input of wireless module 1 after step-down.

B. base stations control part

It by gsm wireless module 8, level shifting circuit 9, Control on Communication single-chip microcomputer 10, expansion control single chip computer 11, carry out control single chip computer 12, address latch 21, data storage 13, photoelectric isolating driving circuit 14, relay 15, supervisory circuit 16, power adapter circuit 17, display circuit 18,19, and supply line stop sending electricity condition circuit 20 to form; Wherein, the TXD port of wireless module 8 connects the input of the voltage comparator of level shifting circuit 9, the RXD port of the output terminated communications control single chip computer 10 of voltage comparator, and the RXD port of wireless module 8 connects the TXD port of single-chip microcomputer 10 behind voltage-stabiliser tube; The P1.0 of Control on Communication single-chip microcomputer 10, P1.1, P1.2 port connect CLOCK, DATA, the LOAD port of the LED display driver of display circuit 18 respectively, RESET, P1.3 port connect RESET, the WDI port of microprocessor monitors circuit 16 respectively, and P1.4, P1.5, P1.6, INT1 port join with P1.4, P1.5, INT0, the P1.6 port of expanding control single chip computer 11 respectively; CLOCK, DATA, the LOAD port of P1.0, the P1.1 of expansion control single chip computer 11, the LED display driver that the P1.2 port connects display circuit 19 respectively, WR, RD port connect WR, the RD port of data storage 13 respectively, the P0 port connects data storage 13 and address latch 21 respectively, the P2 mouth connects data storage 13, and RXD, TXD port connect TXD, the RXD port of carrying out control single chip computer 12; The input of photoelectric isolating driving circuit 14 and output connect respectively carries out control single chip computer 12 and relay 15; Supply line stops sending the signal of electricity condition circuit 20 also to be connected to the execution control single chip computer; The contact of respectively organizing of relay 15 is connected with supply line combined floodgate control loop; The output of power adapter circuit 17 connects the power input of wireless module 8 after step-down.

Above-mentioned electric power overhaul current misdelivery proof supervising device, as display, display is electrically connected with display driver the display circuit of described field control part and base stations control part by charactron.

Above-mentioned electric power overhaul current misdelivery proof supervising device, the number of the execution control single chip computer 12 of described base stations control part is corresponding with the number of the supply line that is controlled.

Adopt the supervising device of this structure, can send release or block signal with field control circuit partly by the site operation personnel, be transferred to the base stations control part by the GSM network platform, after single-chip microcomputer is handled and is judged, deliver to photoelectric isolating driving circuit according to the on-the-spot command signal of sending, make relay get electronic work, locking or release supply line combined floodgate control loop.Because its control signal is provided by field service personnel,, can not cause device damage or personnel's injury because of the electricity of misdelivering so misoperation will not take place yet.

Description of drawings

Fig. 1 is the electric theory diagram of the utility model field control part;

Fig. 2 is the electric theory diagram of base stations control part;

Fig. 3 is the electrical schematic diagram of field control part;

Fig. 4 is the electrical schematic diagram of base stations control part;

Fig. 5, Fig. 6 are respectively field control part main program and external interrupt program flow chart;

Fig. 7 is the program flow chart of base stations control part;

Fig. 8, Fig. 9 are respectively the program flow charts of Control on Communication single-chip microcomputer external interrupt 0 and external interrupt 1;

Figure 10,11,12 is respectively expansion control single chip computer main program, external interrupt 0 and serial interrupt service routine FB(flow block);

Figure 13,14 is respectively the FB(flow block) of carrying out the control single chip computer main program, reaching the serial interrupt service routine;

Embodiment

Can see that from Fig. 1,2 the utility model is made up of field control part and base stations control part two parts, by the signal of telecommunication between GSM network platform transmission two parts, the GSM network platform is utilized existing national GSM digital mobile cellular telecommunication net.Its implementation process is that field service personnel connects after original ground protection line in the supply line that has a power failure; partly send the instruction that this dead line of locking send electricity with the field control partial circuit to base stations control; with the GSM network platform is carrier, delivers to the base stations control part.The base station to making physical break in the original combined floodgate control loop of corresponding supply line circuit breaker, makes the person on duty can not carry out closing operation in supply line to circuit breaker between turn(a)round according to instruction.After upkeep operation finishes, remove earth connection earlier, again by unlock command with combined floodgate control loop breakpoint closure.

Fig. 1 shows, the field control part by wireless module 1, level shifting circuit 2, single-chip microcomputer 3, extend out interface 4, keyboard 5, supervisory circuit 6, power adapter circuit 7, display circuit 8 and form.Wireless module 1 is the converter of Transistor-Transistor Logic level and GSM conversion of signals, and single-chip microcomputer 3 is controlled it by the AT order.Level shifting circuit 2 is used to solve the inconsistent problem of level between single-chip microcomputer 3 and the gsm wireless module 1.The single-chip microcomputer signal realizes that with voltage-stabiliser tube the GSM signal is realized with voltage comparator to the single-chip microcomputer conversion of signals to the conversion of gsm wireless module by signal.The TXD of wireless module 1, RXD port connect the input and the voltage-stabiliser tube of the voltage comparator of level shifting circuit 2 respectively, and the output of voltage comparator and voltage-stabiliser tube connect RXD, the TXD port of single-chip microcomputer 3 respectively.Single-chip microcomputer 3 is coordination control centres of system's operation, set up the normal communication link with the standard asynchronous serial communication mode by serial ports and gsm wireless module 1, handle short message, to electric substation's (station), switchgear house emission locking, unlock command, the various data that dump, processing obtain from electric substation's (station), switchgear house, to the running status of charactron transmission data presentation system, scanning at any time obtains the data of keyboard etc., and present embodiment adopts the 89C52 single-chip microcomputer.The P1.0 of single-chip microcomputer 1, P1.1, P1.2 port connect CLOCK, DATA, the LOAD port of display circuit 8 respectively, and this display driver adopts AX7219 to drive 48 sections charactrons, the various running statuses of display system.Supervisory circuit 6 adopts the MAX691 microprocessor, and its RESET, WDI port connect RESET, the P1.3 port of single-chip microcomputer 3 respectively, and system reset and watchdog function are provided, and its PFI port is used for monitoring supply voltage.Power adapter circuit 7 provides the power supply of 5V to use for Single Chip Microcomputer (SCM) system the power supply of 12V or 9V through 7805 chip step-downs, again through the diode step-down, provide the power supply of 4V to use for the gsm wireless module.Its output connects the power input of wireless module 1 after step-down.Extend out interface 4 and adopt 8155 chips, this chip plays the effect of memory on the one hand, the storage ephemeral data, on the other hand as interface, the keyboard 5 of expansion 64 or 128 keys, its WR, RD, AD0-7, CS, port connect the corresponding port of single-chip microcomputer 3 respectively, and the RESET port of RESET port and supervisory circuit 6 joins.Extend out interface 4 and also be connected, cut off the combined floodgate control loop of supply line when keyboard 5 sends blocking order, closed foregoing circuit when keyboard 5 sends unlock command with keyboard 5.

Fig. 2 shows that the base stations control part stops sending electricity condition circuit 20 to form by wireless module 8, level shifting circuit 9, single-

chip microcomputer

10,11,12, data storage 13, photoelectric isolating driving circuit 14, relay 15, supervisory circuit 16, power adapter circuit 17, display circuit 18,19, circuit.Wherein the structure of wireless module 8, level shifting circuit 9, supervisory circuit 16, display circuit 18,19 is identical with the field control part, repeats no more.

The single-chip microcomputer of base stations control part has 3 kinds, is divided into Control on Communication single-chip microcomputer 10, expansion control single chip computer 11, carries out control single chip computer 12 according to annexation.First kind, Control on Communication single-chip microcomputer 10 adopts the 89C52 single-chip microcomputer, by serial ports with the standard asynchronous serial communication mode, set up link with AT order and gsm wireless module, the short message that emission obtains from the single-chip microcomputer that links to each other with memory, the short message that reception partly obtains from field control, and with its be transmitted to the expansion control single chip computer 11; Drive charactron according to running status and show this single-chip microcomputer running status etc.Second kind, expansion control single chip computer 11 adopts the 89C52 single-chip microcomputer, it is connected with data storage, and it explains the implication of content of short message, and the mode that adds interruption by simulative serial port according to the implication of short message and the single-chip microcomputer that is connected with wireless module is transmitted short message mutually and finished the affirmation communication; Send to carrying out control single chip computer, order these single-chip microcomputers to upload supply line's transmission or not state, carry out the release of corresponding dead line combined floodgate control loop, locking; The legal short message that obtains is carried out record as historical record; Driving display shows corresponding running status etc.Between expansion control single chip computer and memory, also be connected to address latch [21], can adopt the 74HC373 chip.The third, carry out control single chip computer 12 and can adopt the 89C2051 single-chip microcomputer, its number is according to the number decision of actual power circuit, link to each other with second kind of single-chip microcomputer with the standard asynchronous communication modes by serial input, delivery outlet, be responsible for uploading supply line's transmission or not state, carry out release, locking order etc.

The effect of photoelectric isolating driving circuit 14 is interference, and the level conversion that prevent except that the electric power system this device.The input of photoelectric isolating driving circuit and output connect respectively carries out control single chip computer 12 and relay 15 (adding drive circuit in case of necessity).The contact J of relay 15 is connected with the power supply control loop, and utilize it respectively to organize the contact, and can obtain the state of the current operation of supply line the control of combined floodgate control loop, and the folding condition indicator light.What supply line stopped sending 20 reactions of electricity condition circuit is line status, and it is actually the auxiliary contact K of circuit breaker.Power adapter circuit 17 is converted to 5V direct-current power supply Single Chip Microcomputer (SCM) system by the DC power supply in base station (electric substation, stand, switchgear house), supplies with the gsm wireless module through the diode step-down again.

Wireless module can adopt ZXGM18, GM360 or the like.Display circuit can adopt number or liquid crystal display device.Photoelectric isolating driving circuit can adopt 6N135,6N136, TLP521 series etc.Power adapter circuit can adopt the VICO chip.Data storage 13 can adopt 6264 chips.Display circuit 18,19 can adopt MAX7219.

The circuit that links to each other with the execution control single chip computer stops sending the analog switch K in the electricity condition circuit 20 to be used to transmit the current running status of Awaiting Overhaul circuit.

Claims

1. electric power overhaul current misdelivery proof supervising device, it is characterized in that: it is made up of field control and base stations control two parts, and the signal of telecommunication that is transmitted between field control and the base stations control carries out wireless connections by the GSM network platform, wherein:

A, a control section

It by gsm wireless module [1], level shifting circuit [2], single-chip microcomputer [3], extend out interface [4], keyboard [5], supervisory circuit [6], power adapter circuit [7], display circuit [8] and form; [the 1TXD port connects the input of two voltage comparators of level shifting circuit [2] to the gsm wireless module, and the output of voltage comparator connects single-chip microcomputer [3] RXD port again, and the RXD port of wireless module [1] connects the TXD port of single-chip microcomputer 3 behind voltage-stabiliser tube; The P1.0 of single-chip microcomputer [3], P1.1, the P1.2 port meets the CLOCK of the LED display driver in the display circuit [8] respectively, DATA, the LOAD port, RESET, the P1.3 port meets the RESET of supervisory circuit [6] respectively, the WDI port, WR, RD, P0, the P2.6 port respectively with the WR that extends out interface [4], RD, AD0-7, the CS port joins, extend out the RESET port of interface [4] and the RESET port of supervisory circuit [6] and join, extend out interface [4] and also be electrically connected with keyboard [5]; The output of power adapter circuit [7] connects the power input of wireless module [1] after step-down.

B, base stations control part

It is by wireless module [8], level shifting circuit [9], Control on Communication single-chip microcomputer [10], expansion control single chip computer [11], carry out control single chip computer [12], address latch [21], data storage [13], photoelectric isolating driving circuit [14], relay [15], supervisory circuit [16], power adapter circuit [17], display circuit [18], [19] and supply line stop sending electricity condition circuit [20] to form, wherein, wireless module [8] TXD port connects the input of two voltage comparators of level shifting circuit [9], the RXD port of the output terminated communications control single chip computer [10] of voltage comparator, the RXD port of wireless module [1] connects the TXD port of single-chip microcomputer [3] behind voltage-stabiliser tube; P1.0, the P1.1 of Control on Communication single-chip microcomputer [10], P1.2 port connect CLOCK, DATA, the LOAD port of the display driver of display circuit [18] respectively, RESET, P1.3 port connect RESET, the WDI port of supervisory circuit [16] respectively, and P1.4, P1.5, P1.6, INT1 port join with P1.4, P1.5, INT0, the P1.6 port of expanding control single chip computer [11] respectively; P1.0, P1.1, the P1.2 port of expansion control single chip computer [11] connects CLOCK, DATA, the LOAD port of the LED display driver of display circuit [19] respectively, WR, RD port connect WR, the RD port of data storage [13] respectively, the P0 port connects data storage [13] and address latch [21] respectively, the P2 port connects data storage [13], and RXD, TXD port connect TXD, the RXD port of carrying out control single chip computer [12]; The input of photoelectric isolating driving circuit [14] and output connect respectively carries out control single chip computer [12] and relay [15], and supply line stops sending the signal of electricity condition circuit 20 also to be connected to execution control single chip computer [12]; The contact of respectively organizing of relay [15] is connected with the breaker closing control loop; The output of power adapter circuit [17] connects the power input of wireless module [8] after step-down.

2. electric power overhaul current misdelivery proof supervising device according to claim 1 is characterized in that: as display, display is electrically connected with display driver the display circuit [18] of described field control part and base stations control part by charactron.

3. electric power overhaul current misdelivery proof supervising device according to claim 2 is characterized in that: the number of the execution control single chip computer [12] of described base stations control part is corresponding with the number of the supply line that is controlled.