CN2364630Y - Host and secondary computers for monitoring earthing conductor by wireless communication mode - Google Patents
Host and secondary computers for monitoring earthing conductor by wireless communication mode Download PDFInfo
- Publication number
- CN2364630Y CN2364630Y CN 98249166 CN98249166U CN2364630Y CN 2364630 Y CN2364630 Y CN 2364630Y CN 98249166 CN98249166 CN 98249166 CN 98249166 U CN98249166 U CN 98249166U CN 2364630 Y CN2364630 Y CN 2364630Y
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- circuit
- microprocessor
- wireless module
- encoder
- earth connection
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Abstract
The utility model discloses a host and an auxiliary machines for monitoring earthing conductor by a wireless communication mode. A host machine comprises a microprocessor, a memory, a display, a printer, a keyboard, and a clock circuit. The utility model is also provided with an encoder circuit and a decoder circuit which are connected with the microprocessor. The output end of the encoder circuit is connected with the input end of a wireless module. The input end of the decoder circuit is connected with the output end of the wireless module. A matching auxiliary machine comprises a microprocessor, a display, and a keyboard. The matching auxiliary machine is also provided with an encoder circuit which is connected with the display in parallel by the microprocessor. The output end of the encoder circuit is connected with the input end of a wireless module. The input end of the decoder circuit is connected with the output end of the wireless module. The utility model is used for repairing electric power systems or eliminating faults; wrong operation accidents, such as an earth wire which closes a knife switch, etc. can be prevented from occurring by alarm intimation and detection; safety of workers and equipment can be ensured.
Description
The utility model relates to a kind of earth connection monitoring main frame and secondary machine that adopts wireless communication mode, particularly, relates to the earth connection monitoring main frame and the secondary machine of the employing wireless communication mode of the remote signalling monitoring grounding wire ruuning situation that power system transformer substation uses.
At present, what electric power system was used is to prolong the interim hanging earthing conductor group of having used decades, only is the three-phase shortcircuit earth connection.Owing to lack effective monitoring device, can only lean on operating personnel's impression or work on the spot to report and carry out work.There is carelessness to cause the accident slightly.The earth connection misoperation not only can cause casualties, device damage, and cause badly damaged for the safe operation of electrical network.At present there are the tens thousand of seats of electric substation of all kinds of electric pressures in China, whenever presses four to eight groups of interim ground wires and estimates just there are nearly 200,000 groups.Direct and the indirect economic loss that such device causes misoperation fault to cause is very huge.Therefore, press for a kind of generation that can stop ground wire combined floodgate accident, guarantee the grounding wire monitoring device of electric power netting safe running.
The utility model is developed at above problem, its objective is that providing a kind of is placed in the master-control room, inquiry also receives the information that on-the-spot secondary machine sends, display message, to reach the prompting operations staff, ground wire is not removed, the earth connection monitoring main frame that can not close a floodgate and send electric employing wireless communication mode.
The utility model also provides a kind of and earth connection monitoring main frame supporting, can be installed in interim hanging earthing conductor bar or regularly on the coil holder, to the main frame transmitted radio signal, and the earth connection monitoring auxiliary engine with alarm indication function.
Device of the present utility model is made up of earth connection monitoring main frame and secondary machine two parts, and by display message, for example sound, luminous alarm is to avoid the generation of switching on earth wire accident.
To achieve these goals, earth connection monitoring main frame according to wireless communication mode of the present utility model, comprise: microprocessor, link to each other with microprocessor and be subjected to memory, display, printer, the keyboard of its control, and real time clock circuit links to each other with microprocessor and to the power supply of each part mentioned above power supply, but also having encoder circuit, decoder circuit and wireless module, this encoder circuit is connected with microprocessor with this decoder circuit; The output of this encoder circuit is connected with the input of this wireless module; And the input of this decoder circuit is connected with the output of this wireless module.
According to earth connection monitoring auxiliary engine of the present utility model, comprise microprocessor, link to each other with microprocessor and be subjected to the display, keyboard of its control and to the power circuit of each part mentioned above power supply, but also having encoder circuit, decoder circuit and wireless module, this encoder circuit and this display are parallel to microprocessor; The output of this encoder circuit is connected with the input of this wireless module; The input of this decoder circuit is connected with the output of this wireless module; And described power circuit is made of mains switch, pressurizer and supply convertor, and its power output end links to each other with wireless module.
Earth connection of the present utility model monitoring main frame and secondary machine, when being mainly used in electric power system maintenance or handling failure, fixing ground wire and articulate interim ground wire group on converting equipment district power failure equipments detects by alarm prompt, with the safety of protection staff and equipment.Earth connection is operation power, maintainer's a lifeline, and its importance is well imagined.This main frame and secondary machine are on the basis of not destroying former earth connection group, be installed in the micropower transmitting set interim or fixedly on the ground wire, be installed on host query, the reception information that secondary machine sent in the master-control room, can pass through light, alarm window, sound, display screen to person on duty's prompt alarm, and can be sent to the dispatching office night shift room through telecontrol equipment.In ground wire operating period, the mode of operation of ground wire is under the monitoring of main frame all the time, has only when ground wire and removes fully, and the alarm signal of this ground wire group just can be removed, and therefore can prevent fully because the ground wire misoperation fault that causes is neglected in work.For the dispatching office person on duty, except that the report that the work of listening to begins, finishes, can also judge whether electric substation of subordinate can send by telemechanical, remote signals, to reach the generation that prevents the switching on earth wire accident, guarantee electric power netting safe running, avoid misoperation fault to cause loss of life or personal injury and tremendous economic loss, therefore can bring good social benefit.
Fig. 1 is the block diagram of expression earth connection monitoring of the present utility model main frame.
Fig. 2 is the circuit diagram of encoder in main frame shown in Figure 1 and the secondary machine.
Fig. 3 is the circuit diagram of decoder in main frame shown in Figure 1 and the secondary machine.
Fig. 4 is the real time clock circuit figure in the main frame shown in Figure 1.
Fig. 5 a is the sounding warning circuit figure in the main frame shown in Figure 1.
Fig. 5 b is the luminous warning circuit figure in the main frame shown in Figure 1.
Fig. 6 is the block diagram of expression earth connection monitoring auxiliary engine of the present utility model.
Below, in conjunction with each accompanying drawing, describe embodiment of the present utility model in detail.
At first, main frame is described.
The block diagram of this earth connection monitoring main frame, as shown in Figure 1.According to earth connection monitoring main frame of the present utility model, comprise microprocessor 4, link to each other with microprocessor 4 and be subjected to memory 3, display 2, printer 1 and the keyboard 5 of its control, and the real time clock circuit 10 that links to each other with microprocessor 4 and, but also have encoder circuit 6, decoder circuit 7 and wireless module 9 to the power supply 12 of each several part power supply.This encoder circuit 6 links to each other with microprocessor 4 with this decoder circuit 7; The output of this encoder circuit 6 is connected with the input of this wireless module 9; And the input of this decoder circuit 7 is connected with the output of this wireless module 9.
And this main frame also has to walk abreast expands mouth 8 and Alarm Unit circuit 11, and real time clock circuit 10 all links to each other with this parallel expansion mouth with Alarm Unit circuit 11, and passes through to be somebody's turn to do parallel expansion mouth 8, and then is connected with microprocessor.
After powering on, main frame by encoder circuit 6 and wireless module 9, sends uniform signal to the secondary machine of registering under the control of microprocessor (being designated hereinafter simply as CPU) 4.Receive the answer signal of secondary machine when wireless module 9 after, by decoder circuit 6 to the CPU of main frame 4 data signal.After in CPU 4, carrying out signal processing, be sent to display 2 respectively, demonstrate the signal content of secondary machine and send new request signal.Real time clock circuit 10 by parallel expansion mouth 8, is periodically delivered to clock signal CPU 4, makes systems work synchronized.Memory 3 is preserved the operating state of each secondary machine of scene operation, so that call at any time.Operating personnel can pass through printer 1, the situation printout that equipment is put into operation.By keyboard 5, make operating personnel's Query Running Status at any time, time parameter is set.When secondary machine moved, Alarm Unit will send sound, light alarm signal.
Below, will each part of above-mentioned main frame be elaborated.
Because set printer 1, display 2, memory 3, microprocessor 4, keyboard 5 and power circuit 12 all is well-known technology in the main frame, so only do simple declaration.Printer 1 can adopt for example nine kinds of needles mini-printer, is used for the relevant data and the time location information at print job scene.Display 2 can be a kind of LCD with LCDs, links to each other with microprocessor by parallel port, shows the operating state of the secondary machine that puts into operation, and other relevant information.Memory 3 is used to preserve the on-the-spot various data that put into operation.Microprocessor (CPU) 4 for example adopts 8 single-chip microcomputers, is used for undertaking the management of operating state, the transmitting-receiving of data, demonstration, printing and the warning function of processing host.Keyboard 5 is connected with CPU and uses for the operator, can import various data, and the various operating states of main control system.Power supply 12 will through the transformer rectification, behind the integrated regulator voltage regulation filtering, provide+5V the DC power supply of+6V from civil power 220V alternating current to each circuit part.
Fig. 2 is the circuit diagram of the encoder in the main frame shown in Figure 1.Here, microprocessor D1 for example adopts 8051, and encoder for example adopts PT2262.The parallel port P of microprocessor D1
2P
2.0, P
2.1... P
2.5Respectively with the D of encoder D5
φ-D
5End links to each other, P
2.6Mouthful link to each other with/TE by not gate D10.The R of encoder D5, R end connects R10, D
0End is by the V of resistance R 11 with radio receiving transmitting module
INEnd links to each other, V
INEnd is also by resistance R 12 ground connection.
Encoder D5 is the encoder circuit 6 that integrated circuit PT2262 and components and parts are formed, and the data parallel sign indicating number that is used for CPU is sent changes serial code into, delivers to radio receiving transmitting module 9.
Fig. 3 be shown in decoder circuit figure in Fig. 1 main frame.Decoder circuit 7 is used for data serial sign indicating number that secondary machine is sent here, is transformed to the treatable parallel sign indicating number of CPU.Decoder circuit 7 is by decoder, and the integer circuit is connected successively and forms with circuit such as drivers.
Specifically, after radio receiving transmitting module 9 was received the signal that secondary machine sends, Vo was by capacitor C 8, and resistance R 17 is connected with the base stage of transistor T 1, and Vo also passes through capacitor C 7 ground connection.The base stage of triode T1 is connected by resistance R 16 with collector electrode, and collector electrode links to each other by capacitor C 9 with emitter, and collector electrode is connected with resistance R 19, and another termination power Vcc of resistance R 19 (+5V).The collector electrode of transistor T 1 is by resistance R 18 and integrated operational amplifier N3, and for example the positive input terminal of LM358 connects, the cross-over connection resistance R 21 just and between the negative terminal of operational amplifier N3, and its negative terminal is also by capacitor C 10 ground connection.Operational amplifier N3 is the shaping circuit part, is used to finish waveform shaping, and the signal after the shaping is sent into decoder integrated circuit D7, for example the input V of PT2272
iThe output D of decoder integrated circuit D7
0-D
5With driver D6, for example each input Vi of integrated circuit 74244 connects respectively, and after driver D6 drove buffering, each held output V
0Respectively with the P of CPU (8051)
2.0-P
2.5End is connected.Just can among CPU, handle from the information that parallel port is come.Control signal is by the V of decoder integrated circuit D7
iEnd is delivered to CPU through not gate D10, promptly D1 /INTO end.
The signal of wireless module 9 to transmit between the communication transmitting-receiving major-minor machine.Wireless module 9 (Zunhua, Hebei radio factory product) adopts mode of frequency regulation work, about 300 meters of radiation length, and radio frequency power output is about 300mw, and antenna impedance is 50 Ω.
Fig. 4 is the real time clock circuit figure in the main frame.Real time clock circuit 10 is made up of integrated circuit 12887 and resistance-capacitance circuit.The D of this integrated circuit 12887
0～D
7The data/address bus of end and parallel expansion mouthfuls 8 is connected, and IRQ is the interrupt requests end, and RST terminating resistor R23 adds+5V and pass through capacitor C 11 ground connection.Real time clock circuit 10 major functions are regularly to send interrupt requests to CPU (8051), after main frame accepts request, regularly to secondary machine Query Information.
Alarm Unit circuit 11 has sound alarm circuit and luminous warning circuit.
This sound alarm circuit, shown in Fig. 5 a, by a transistor, buzzer is connected in this transistor collector and resistance is connected in the base stage formation.Specifically, the sound alarm circuit can be by transistor T 2, electromagnetic type buzzer or loudspeaker, and resistance R 7 constitutes.Growth data line connecting resistance R7, the base stage of another termination transistor T 2 of resistance R 7, its grounded emitter, collector electrode connects an end of buzzer, the other end of buzzer, connect power Vcc (+5V) end.
This luminous warning circuit, shown in Fig. 5 b, by a transistor, light-emitting diode is connected in this transistor collector and resistance is connected in the base stage formation.Specifically, luminous Alarm Unit is made up of resistance R 24, resistance R 25, capacitor C, LED, triode T3.The growth data line is received the base stage of triode T3 by resistance R 25.The base stage of triode T3 is by capacitor C ground connection, its grounded emitter, the negative pole of collector electrode sending and receiving optical diode LED.The light-emitting diode positive pole connects+the 5V power supply by resistance R 24.The collector electrode of triode T3 can also externally connect alarm window and RTU telemechanical apparatus by the plug of one two core.
Below, secondary machine is described.
The block diagram of earth connection monitoring auxiliary engine of the present utility model, as shown in Figure 7.This earth connection monitoring auxiliary engine, comprise: microprocessor 23, link to each other with microprocessor 23 and be subjected to display 22, the keyboard 24 of its control, and to the power circuit 29 of each above-mentioned part power supply, but also having encoder circuit 21, decoder circuit 25 and wireless module 28, this encoder circuit 21 and this display are parallel on the microprocessor 23; The output of this encoder circuit 21 is connected with the input of wireless module 28; The input of this decoder circuit 25 is connected with the output of wireless module 28; And this power circuit is made of battery 29, supply convertor 26 and pressurizer 27.Supply convertor 26 outputs link to each other with wireless module.Pressurizer 27 is given each circuit part power supply.
Below, will each part of secondary machine be elaborated.
So the encoder circuit 21 of secondary machine shown in Fig. 7 and the identical (see figure 2) of encoder circuit of main frame are circuit structure repeated description no longer.
This encoder circuit 21 is undertaken the CPU output information of secondary machine, the coding of data, and the sign indicating number that will walk abreast becomes serial code output, sends into wireless module.
Display 22 can adopt LCD, and it is used to show the operating state of secondary machine, user's device numbering, and various information indicating signal.P by CPU (8051)
0Mouth links to each other with the data wire of LCD respectively.
Microprocessor 23 (CPU) adopts 8 chip microprocessors 8051.This CPU23 undertakes the transmitting-receiving processing of secondary machine operating state data, demonstration, alarm and the control of data.
Keyboard 24 can be numbered for operator's input equipment, and the operating state of handling secondary machine.This keyboard 24 links to each other with CPU.
Decoder circuit 25 is identical with the decoder circuit in the main frame, forms by circuit elements such as decoding integrated circuit, shaping circuit, drivers, thereby repeated description no longer.Decoder circuit 25 in the secondary machine, being used for the wireless signal that main frame is sent here is the serial code of numeric data code, control code etc., is transformed into parallel sign indicating number and gives CPU 23 and handle.
About power circuit 29, it comprises battery 29, supply convertor 26 and pressurizer 27.Here, these members all are known technologies, and wherein supply convertor 26 is the voltage that is fit to wireless module work with the voltage transitions of battery 29.Pressurizer 27 is used for providing stable working power to secondary machine circuit.
28 of wireless modules are received and dispatched the signal that transmits between the major-minor machine with wireless mode equally, since identical with main frame, so repeat no more.
Described the circuit structure of secondary machine above in detail.The course of work of this pair machine will be described below.
When powering on, battery 29 send to supply convertor 26 and pressurizer 27.Supply convertor 26 is to wireless module 28 power supplies, and pressurizer 27 is other circuit supplies in secondary machine.Operating personnel deliver to CPU 23 by keyboard 24 with device number and other data, and data are after treatment delivered to encoder 21 and display 22.Encoder 21 is converted to serial data with parallel data.Display 22 shows the relevant information content, after wireless module 28 is received the request signal (serial code) that main frame sends here, demodulates serial row sign indicating number, delivers to decoder 25, delivers to CPU 23 through decoded parallel sign indicating number and handles.After CPU 23 handles, start wireless module according to the information content, beam back answer signal to main frame, while CPU 23 gives display 22 with related content and shows.
Earth connection of the present utility model monitoring main frame and secondary machine, when being mainly used in electric power system maintenance or handling failure, fixing ground wire and articulate interim ground wire group on converting equipment district power failure equipments detects by alarm prompt, with the safety of protection staff and equipment.Be installed in secondary machine interim during use or fixedly on the ground wire, be installed on host query in the master-control room, receive the information that secondary machine sent, can pass through sound, luminous, reach display screen to person on duty's prompt alarm.In ground wire operating period, the mode of operation of ground wire is under the monitoring of main frame all the time, have only the ground wire of working as to remove fully, the alarm signal of this ground wire group just can be removed, thereby can prevent from fully to neglect the ground wire misoperation fault that causes because of work, therefore have the switching on earth wire of preventing accident, avoid misoperation to cause the good result of loss of life or personal injury and tremendous economic loss.
Claims (10)
1, a kind of earth connection monitoring main frame that adopts wireless communication mode, comprise: microprocessor, link to each other with microprocessor and be subjected to memory, display, printer and the keyboard of its control, the real time clock circuit that links to each other with microprocessor and to the power supply of described each several part power supply is characterized in that:
Also have encoder circuit, decoder circuit and wireless module, described encoder circuit links to each other with described microprocessor with described decoder circuit; The output of described encoder circuit is connected with the input of described wireless module; And the input of described decoder circuit is connected with the output of described wireless module.
2, earth connection monitoring main frame according to claim 1, it is characterized in that: also have parallel expansion mouth and Alarm Unit circuit, described real time clock circuit all links to each other with described parallel expansion mouth with described Alarm Unit circuit, and described parallel expansion mouth is connected with described microprocessor.
3, earth connection monitoring main frame according to claim 1 and 2, it is characterized in that: described encoder circuit is the parallel port P by described microprocessor
2Respectively with the D of described encoder integrated circuit D5
φ-D
5End connects, and port P
2.6By not gate D10 and integrated circuit D5 /the TE end is connected; R, the R end of encoder integrated circuit D5 connects resistance R 10, D
0End connects resistance R 11; And the V of resistance R 11 and described radio receiving transmitting module
INEnd links to each other and constitutes.
4, according to claim 1 or 2 each described earth connection monitoring main frames, it is characterized in that: described decoder circuit is by decoder, and integer circuit and driver connect to form successively.
5, earth connection monitoring main frame according to claim 1 and 2, it is characterized in that: described Alarm Unit circuit has sounding warning circuit and luminous warning circuit.
6, earth connection monitoring main frame according to claim 5, it is characterized in that: described sound alarm circuit is by a transistor, buzzer is connected in this transistor collector and resistance is connected in the base stage formation.
7, earth connection monitoring main frame according to claim 5, it is characterized in that: described luminous warning circuit is by a transistor, light-emitting diode is connected in this transistor collector and resistance is connected in the base stage formation.
8, a kind of earth connection monitoring auxiliary engine of wireless communication mode comprises microprocessor, and the display and the keyboard that link to each other with microprocessor and be subjected to its control, and above-mentioned power circuit to the each several part power supply is characterized in that:
Also have encoder circuit, decoder circuit and wireless module, described encoder circuit and described display are parallel to described microprocessor; The output of described encoder circuit is connected with the input of described wireless module; The input of described decoder circuit is connected with the output of described wireless module; And described power circuit mains switch, pressurizer and supply convertor formation, its power output end links to each other with wireless module.
9, earth connection monitoring auxiliary engine according to claim 8 is characterized in that: described encoder circuit is the parallel port P by described microprocessor
2Respectively with the D of described coding integrated circuit D5
φ-D
5End connects, and port P
2.6By not gate D10 and integrated circuit D5 /the TE end is connected; The R of integrated circuit D5, R end connects resistance R 10, D
0End connects resistance R 11; And the V of resistance R 11 and described radio receiving transmitting module
INEnd links to each other and constitutes.
10, according to Claim 8 or 9 each described earth connection monitoring auxiliary engines, it is characterized in that: described decoder circuit is by decoder, and integer circuit and driver connect to form successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249166 CN2364630Y (en) | 1998-12-09 | 1998-12-09 | Host and secondary computers for monitoring earthing conductor by wireless communication mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249166 CN2364630Y (en) | 1998-12-09 | 1998-12-09 | Host and secondary computers for monitoring earthing conductor by wireless communication mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2364630Y true CN2364630Y (en) | 2000-02-16 |
Family
ID=33993997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98249166 Expired - Fee Related CN2364630Y (en) | 1998-12-09 | 1998-12-09 | Host and secondary computers for monitoring earthing conductor by wireless communication mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2364630Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461536C (en) * | 2006-10-26 | 2009-02-11 | 珠海优特电力科技股份有限公司 | A mistaken lock prevention ground line control system and control method |
| CN1595852B (en) * | 2004-06-23 | 2010-04-28 | 中国电信股份有限公司 | End-to-end real time on-line monitoring system and method for circuit |
| CN102568375A (en) * | 2011-12-08 | 2012-07-11 | 湖州电力局 | Remote monitoring alarm window |
| CN106226644A (en) * | 2016-07-07 | 2016-12-14 | 国家电网公司 | Portable earth lead uses status monitoring alarm device |
-
1998
- 1998-12-09 CN CN 98249166 patent/CN2364630Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595852B (en) * | 2004-06-23 | 2010-04-28 | 中国电信股份有限公司 | End-to-end real time on-line monitoring system and method for circuit |
| CN100461536C (en) * | 2006-10-26 | 2009-02-11 | 珠海优特电力科技股份有限公司 | A mistaken lock prevention ground line control system and control method |
| CN102568375A (en) * | 2011-12-08 | 2012-07-11 | 湖州电力局 | Remote monitoring alarm window |
| CN106226644A (en) * | 2016-07-07 | 2016-12-14 | 国家电网公司 | Portable earth lead uses status monitoring alarm device |
| CN106226644B (en) * | 2016-07-07 | 2019-04-05 | 国家电网公司 | Portable ground line use state monitoring alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |