CN2319949Y - Superhigh resolution monitor of electric network distance dynamic equipment SOE - Google Patents

Abstract

The utility model relates to a superhigh resolution monitor of electric network distance dynamic equipment SOE. The utility model has a microprocessor U1, a clock circuit U6, a field bus driver U25, and a controller U24. A supervisory signal line is connected with the P1 port of the microprocessor U1 through a photoelectric coupler, and a signal catching input line is formed. The output line of the clock circuit U6 is connected with the port P1 of the microprocessor U1, and a driving timed pulse input line and a clock timing line with a millisecond grade are formed. The field bus is connected with the port P1 of the microprocessor U1 trough U25, U24, and a system calendar clock timing line is formed. The utility model can continuously monitor and automatically record state shifting time with real time, and enhance the resolution of the SOE to the order of magnitude of 0.03 ms to 0.1 ms.

Description

Electrical network telecontrol equipment SOE ultrahigh resolution watch-dog

The utility model relates to a kind of power circuit telecontrol equipment watch-dog, and it is a kind of electrical network telecontrol equipment SOE (sequence of events recording) ultrahigh resolution watch-dog.

At present, each position of the switch state of microprocessor cycle ground scan for inquiries is adopted in the SOE monitoring of electrical network telecontrol equipment basically, when discovery has switch changed position information, come reading system calendar, clock value again, but also must adopt the mode of software and hardware to realize artificial delay filtering, avoid the interference of spurious signal, the possibility that this has just increased the time-delay of logout and has produced the ambiguity factor, cause SOE resolution index to reduce (the SOE resolution of conventional apparatus is about 5-10ms), bring negative influence guaranteeing electric power netting safe running.

The purpose of this utility model is that the electrical network telecontrol equipment SOE ultrahigh resolution watch-dog of a kind of energy continuous monitoring and real-time automatic recording is provided.

The purpose of this utility model is achieved through the following technical solutions: a kind of electrical network telecontrol equipment SOE ultrahigh resolution watch-dog, its circuit is formed and is comprised signal monitoring cable YX1, YX2, YX3, CAN Bus BUS, chip microprocessor U1, memory under program U4, data memory U3, address bus, data/address bus, interface circuit, it is characterized in that signal monitoring cable YX1, YX2, YX3 is respectively by photoelectronic coupler G1, G2, G3 is connected to the P1 mouth 4 of the programmable count array PCA of U1,5,6 pin, constitute signal capture incoming line B, C, D, also has clock circuit U6, the lock-out pulse mouth SQW23 pin output line of U6 connects P1 mouth 3 pin of the PCA of U1, constitute the driving sprocket pulse incoming line A of its basic counter, interrupt signal mouth INT19 pin second of U6 connects P1 mouth 7 pin of the PCA of U1, line E when constituting this machine Millisecond clock school, also has CAN Bus BUS driver U25, controller U24, the communication port grid line CANH of CAN Bus BUS, CANL connects 7 of driver U25,6 pin, its output 1,4 pin are by photoelectronic coupler G4, G5 connects 13 of controller U24,19 pin, connection during the construction system school, and data interruption mouth INT16 pin connects P1 mouth 8 pin of the PCA of U1, line F during construction system calendar clock school during the school by U24.

The utility model can be applied in the power monitoring circuit system that disperses system, adopt the mode of continuous monitoring, record reprocessing earlier, in the continuous monitoring process, microprocessor U1 can automatically record all state displacement times that occur among signal monitoring cable YX1, YX2, the YX3 earlier in time, reinform host computer and read use, avoid the artificial delay that traditional scan mode causes and the problem of the SOE low resolution that uncertain factor causes occurs.Because the PCA basic counter of U1 has the time precision of 0.03-0.1ms, therefore self registering time data precision and resolution can reach the 0.03-0.1ms order of magnitude, when the Millisecond calendar clock that provides owing to U6 often carries out the system school by U24, U25 again, can be consistent the writing time of U1 with the calendar clock of whole system, thereby guarantee the validity of continuous self registering time data precision of U1 and SOE ultrahigh resolution.

With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.

Fig. 1 is the utility model circuit block diagram.

Fig. 2 is the utility model circuit theory schematic diagram.

As depicted in figs. 1 and 2, the circuit of electrical network telecontrol equipment SOE ultrahigh resolution watch-dog is formed and is comprised signal monitoring cable YX1, YX2, YX3, CAN Bus BUS, chip microprocessor U1, memory under program U4, data memory U3, address bus, data/address bus, interface circuit, it is characterized in that signal monitoring cable YX1, YX2, YX3 is respectively by photoelectronic coupler G1, G2, G3 is connected to the P1 mouth 4 of the programmable count array PCA of U1,5,6 pin, constitute signal capture incoming line B, C, D, also has clock circuit U6, the lock-out pulse mouth SQW23 pin output line of U6 connects P1 mouth 3 pin of the PCA of U1, constitute the driving sprocket pulse incoming line A of its basic counter, interrupt signal mouth INT19 pin second of U6 connects P1 mouth 7 pin of the PCA of U1, line E when constituting this machine Millisecond clock school, also has CAN Bus BUS driver U25, controller U24, the communication port grid line CANH of CAN Bus BUS, CANL connects 7 of driver U25,6 pin, its output 1,4 pin are by photoelectronic coupler G4, G5 connects 13 of controller U24,19 pin, connection during the construction system school, and data interruption mouth INT16 pin connects P1 mouth 8 pin of the PCA of U1, line F during construction system calendar clock school during the school by U24.U2 is a latch among Fig. 2.The data port D0-D7 of U6, U24 connects the data port P0.0-P0.7 of U1 respectively.

Among the utility model embodiment, the model of circuit devcie is as follows: U1 is 80C251SB, and U2 is 74HC373, and U3 is 6264, and U4 is 2764, and U6 is DS12887, and U24 is 82C200, and U25 is 82C250, and G1-G3 is TL117, and G4, G5 are 6N137.

The utility model circuit structure compactness, multiple functional, not only greatly improved the SOE resolution of power circuit telecontrol equipment monitoring, and made the also corresponding raising of system reliability.

Claims (1)

1, electrical network telecontrol equipment SOE ultrahigh resolution watch-dog, its circuit is formed and is comprised signal monitoring cable YX1, YX2, YX3, CAN Bus BUS, chip microprocessor U1, memory under program U4, data memory U3, address bus, data/address bus, interface circuit, it is characterized in that signal monitoring cable YX1, YX2, YX3 is respectively by photoelectronic coupler G1, G2, G3 is connected to the P1 mouth 4 of the programmable count array PCA of U1,5,6 pin, constitute signal capture incoming line B, C, D, also has clock circuit U6, the lock-out pulse mouth SQW23 pin output line of U6 connects P1 mouth 3 pin of the PCA of U1, constitute the driving sprocket pulse incoming line A of its basic counter, interrupt signal mouth INT19 pin second of U6 connects P1 mouth 7 pin of the PCA of U1, line E when constituting this machine Millisecond clock school, also has CAN Bus BUS driver U25, controller U24, the communication port grid line CANH of CAN Bus BUS, CANL connects 7 of driver U25,6 pin, its output 1,4 pin are by photoelectronic coupler G4, G5 connects 13 of controller U24,19 pin, connection during the construction system school, and data interruption mouth INT16 pin connects P1 mouth 8 pin of the PCA of U1, line F during construction system calendar clock school during the school by U24.