CN2424471Y

CN2424471Y - Signal on-line automatic detecting and calling device for power system fault

Info

Publication number: CN2424471Y
Application number: CN 00227919
Authority: CN
Inventors: 黄阜民
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-18
Filing date: 2000-04-18
Publication date: 2001-03-21
Anticipated expiration: 2010-04-18

Abstract

The utility model relates to a signal on-line automatic detecting and calling device for power system faults, which is composed of the electric connection of an interface circuit, a central processing circuit, a control circuit, a communication circuit IC card circuit, a clock circuit, and a printed circuit through a system bus. The utility model can be connected to a general radio paging system through a phone line. The utility model can automatically monitor fault signals of an electric power system, and can notify related personnel through a radio paging system, IC card management can be realized to relative personnel, and any change to existing equipment can be avoided. The utility model has the advantages of simple structure, low manufacture cost, high automatization, high safety, and operational reliability.

Description

Electric power system fault signal online automatic detection and paging equipment

The utility model relates to the device of a kind of electric system indication or alarm fortuitous event, particularly a kind of in electric system running device undesired or that can carry out online automatic detection and automatic paging to anticipating signal and trouble-signal when having an accident.

The stable operation of electric system is worked normally, produces for people and life has significant effects, but because unpredictable factor, various fault may take place in electric system or thereby accident causes power failure, thereby in time find out and break down or the place and the object of accident, notify the maintenance personal to be on the scene as early as possible fault or accident are handled to restore electricity to producing and life has very important significance.At present; generating plant, power transformation in one's power the automaticity of electric system running than higher; the equipment that has can be implemented in when accident occurring can be by protective relaying device with the dump of equipment and send corresponding signal on the spot; and also can be when abnormal conditions appears in equipment to the fault signal that warns; and these trouble-signals and advance notice letter can be delivered to control center by the signalling channel (carrier wave, microwave, optical fiber etc.) that is provided with, handle to the scene by the dispatcher of control center again.But generating plant, power transformation in one's power the electric system homemade or import of now installing telecommunication equipment not only apparatus body cost an arm and a leg, and, thereby certain restriction is arranged for large-scale promotion application for signalization passage (carrier wave, microwave, optical fiber etc.) need to increase the investment more much bigger than equipment (often surpass the cost of equipment own tens of times); Also needing to reinform the maintenance personal by the operator on duty of control center simultaneously deals with to the scene; because system can not directly notify the maintenance personal to arrive in fault in-situ with the fastest speed it is handled, so protection equipment, the accident that prevents are enlarged, reduce the power failure scope and against time shorten power off time, certain influence that restores electricity rapidly.

The purpose of this utility model is at above-mentioned existing in prior technology shortcoming, provides a kind of undesired or can carry out online automatic detection and send the electric power system fault signal online automatic detection and the paging equipment of paging signal automatically anticipating signal and trouble-signal when having an accident in electric system running.

This electric power system fault signal online automatic detection and paging equipment, comprise telecommunication circuit, IC-card circuit, clock circuit, print circuit, also comprise interface circuit, central processing circuit, control circuit, interface circuit, central processing circuit, control circuit, telecommunication circuit, IC-card circuit, clock circuit, print circuit are electrically connected by system bus, and central processing circuit is electrically connected by telecommunication circuit and telephone wire.

The principle of work of this electric power system fault signal online automatic detection and paging equipment is as follows: when electric system operates undesired or has an accident; the electric system sensor is sent abnormal signal and is imported by the input port of this device interface circuit; interface circuit scans input port; and to the signal processing that performs an analysis of input; then signal is input to central processing circuit by system bus; control circuit is monitored to guarantee its operate as normal central processing circuit; the abnormality signal of central processing circuit interface circuit input is handled; on the one hand result is transported to clock circuit; being transported to print circuit after joining day comes out by printer prints; on the other hand result is sent to telephone wire by telecommunication circuit; and connect to go up general radio paging system by telephone wire and send; fail the scene of arriving in the very nick of time as the related personnel; then every the regular hour automatically print and automatic paging once, after the related personnel receives paging signal, rush to till the scene.The related personnel rushes to and can understand detailed fault content from the result of having printed behind the scene and with its eliminating, connect the IC-card circuit with its special-purpose IC-card, just can IC-card number and related content be printed by the password that sets, thereby the concrete condition (as the time of maintenance) that can write down the related personnel is managed with convenient; This moment, system automatically reset, and no longer sent alerting signal.

This electric power system fault signal online automatic detection and paging equipment compared with prior art have following advantage: (1) is because this device is to utilize general radio paging system as signalling channel, so it is more extensive to transmit the scope of signal, fault-signal directly can be notified a plurality of different local related personnel in the same time, avoided existing equipment to need control center dispatcher and the time delays that causes again, thereby can in time protect power equipment, prevent that fault from enlarging, restore electricity rapidly, and can realize unattended, use manpower and material resources sparingly, automaticity is higher; (2) because this device does not need to lay in addition signalling channels such as special-purpose carrier wave, microwave, optical fiber, only utilize existing telephone wire and radio paging system just can realize, and because the formation of device itself is fairly simple, selected element all is commonly used and lower-cost, so the manufacturing expense of this device is lower, only be 1/5～1/10 of existing telecommunication equipment equipment manufacturing cost generally; (3) since this device have self-checking function and establish two main frames standby each other and automatically switch, and in establish the uninterrupted power source assurance device normal operation, so security performance is higher; (4) because this device has adopted the mode of touring detection, also can respond rapidly so can in time reflect each quantity of state that electric system need be monitored fault-signal, also can not miss for the signal that a plurality of faults are sent, so operational reliability is better; (5) this device is not made any change or additional other components and parts to original equipment and control thereof, signal circuit, thereby existing equipment is not had influence, and is can applicable scope wider; (6) because this device is carried out the method for IC-card management, not only easy to operate, and more can check, supervise and examine the related personnel, improve the management level of electric system.

Embodiment of the present utility model is described below with reference to accompanying drawings.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a circuit block diagram of the present utility model.

Fig. 3 is the circuit theory diagrams of interface circuit of the present utility model.

Fig. 4 is the circuit theory diagrams of central processing circuit of the present utility model.

Fig. 5 is the circuit theory diagrams of control circuit of the present utility model.

Fig. 6 is the circuit theory diagrams of clock circuit of the present utility model.

Fig. 7 is the circuit theory diagrams of print circuit of the present utility model.

Fig. 8 is the circuit theory diagrams of IC-card circuit of the present utility model.

Fig. 9 is a signal handler process flow diagram of the present utility model.

As shown in Figure 1, this electric power system fault signal online automatic detection and paging equipment are electrically connected jointly by system bus by interface circuit, central processing circuit, control circuit, telecommunication circuit, IC-card circuit, clock circuit, print circuit and constitute.Fig. 3～Fig. 8 shows the circuit theory diagrams of this device each several part, and as seen from Figure 3, the interface circuit of this device is electrically connected jointly by single-chip microcomputer, photoelectrical coupler group, diode displaying group and constitutes; As seen from Figure 4, the central processing circuit of this device is electrically connected jointly by single-chip microcomputer, number memory, telecommunication circuit and constitutes, and wherein telecommunication circuit is electrically connected jointly and is constituted by coding transmitter, level shifting circuit; As seen from Figure 5, the control circuit of this device is electrically connected jointly and is constituted by single-chip microcomputer, signal maintenance IC, level conversion IC; As seen from Figure 6, the clock circuit of this device is electrically connected jointly by single-chip microcomputer, calendar IC and constitutes; As seen from Figure 7, the print circuit of this device is electrically connected jointly by single-chip microcomputer, printer and constitutes; As seen from Figure 8, the IC-card circuit of this device keeps IC, IC card reader to be electrically connected jointly and to constitute by single-chip microcomputer, level conversion IC, signal.Fig. 2 shows the principle of work of this device, as seen from Figure 2, when electric system operates undesired or has an accident, electric system sensor such as photoelectrical coupler or analogue signal processor etc. are sent abnormal signal and are imported by the input port of this device interface circuit, the single-chip microcomputer of interface circuit scans input port, and to the electric signal processing that performs an analysis of input, then signal condition is shown on display panel by the diode displaying group, simultaneously signal is input to central processing circuit by system bus; Central processing circuit disposes operating circuit and stand-by circuit, by control circuit central processing circuit is monitored to guarantee its operate as normal, when operating circuit broke down, control circuit was enabled stand-by circuit automatically and is carried out the normal use of work with assurance device; The abnormality signal of central processing circuit interface circuit input is handled, on the one hand result is transported to clock circuit, be transported to object that print circuit by printer prints have instant time and accident or abnormal conditions by system bus by clock circuit after joining day, on the other hand the call number that stores in the number memory is extracted, and be sent to telephone wire after the numbering process telecommunication circuit level conversion with call number and accident or abnormal conditions object, and connect to go up general radio paging system by telephone wire and send, fail the scene of arriving in the very nick of time as the personnel of corresponding number, then every the regular hour automatically print and automatic paging once, till the related personnel who receives paging signal rushes to the scene; The related personnel rushes to available its special-purpose IC-card in on-the-spot back and inserts IC card reader connection IC-card circuit, just can contents such as IC-card number, related personnel's code and instant time be printed by the password that sets, thereby can write down detailed trouble hunting situation; This moment, system automatically reset, and no longer sent alerting signal.The signal handler process flow diagram of this device as shown in Figure 9, its handling procedure process step is as follows: (1) start makes system reset; (2) input port is carried out scan round, detection accident or anticipating signal, as detect fault-signal, then this signal is input to this treating apparatus; (3) this treating apparatus is handled fault-signal, and result is added that by timing program operation print subroutine and paging subroutine print and paging after the time; (4) before system does not reset, page procedure with fault-signal at regular intervals (as 10 minutes) send, until system reset.

Embodiment of the present utility model is as follows: (1) presses Fig. 3～shown in Figure 8, and the screening components and parts are installed connection.Wherein: the single-chip microcomputer in interface circuit, central processing circuit, control circuit, clock circuit, print circuit, the IC-card circuit all can be selected the 89C51 integration member for use, the coding transmitter of telecommunication circuit can adopt the MT8880 integration member, the signal of control circuit keeps IC can select the NE555 integration member for use, level conversion IC can select the 74LS00 integration member for use, the calendar IC of clock circuit can select the MC146818 integration member for use, the level conversion IC of IC-card circuit can select the 74LS00 integration member for use, and signal keeps IC can select the 74LS245 integration member for use; (2) install and debug each circuit after, install and be electrically connected to constitute this device by shown in Figure 1 again; (3) by the described signal processing establishment of shown in Figure 9 and top instructions control program, regulate operation by the principle of work of described device of top instructions again, just can realize the utility model preferably.

Claims

1, a kind of electric power system fault signal online automatic detection and paging equipment, comprise telecommunication circuit, IC-card circuit, clock circuit, print circuit, it is characterized in that: this device also comprises interface circuit, central processing circuit, control circuit, interface circuit, central processing circuit, control circuit, telecommunication circuit, IC-card circuit, clock circuit, print circuit are electrically connected by system bus, and central processing circuit is electrically connected by telecommunication circuit and telephone wire.