CN2836316Y - Automatic monitoring device for low-voltage distribution network in rural area - Google Patents
Automatic monitoring device for low-voltage distribution network in rural area Download PDFInfo
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- CN2836316Y CN2836316Y CN 200520113403 CN200520113403U CN2836316Y CN 2836316 Y CN2836316 Y CN 2836316Y CN 200520113403 CN200520113403 CN 200520113403 CN 200520113403 U CN200520113403 U CN 200520113403U CN 2836316 Y CN2836316 Y CN 2836316Y
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Abstract
The utility model relates to an automatic monitoring device for a rural low-voltage network, which comprises an upper supervisor and a lower computer. A circuit structure is mainly split into a GSM communications unit, a program control unit of a single-chip computer, a data acquisition unit, a three-phase current-voltage sampling unit, a relay unit, a state test unit for a distribution transformer and a power circuit. The automatic monitoring device for an electric network has the advantage that the utility model can remotely monitor the running state of the rural low-voltage network.
Description
Technical field
The utility model relates to a kind of countryside low-voltage electric distribution network automatization controlling device.
Background technology
In rural low voltage network; stolen and the impaired phenomenon of electric power facility is very serious; and the current voltage of distribution transforming; three-phase current must be by artificial to in-site measurement; like this; the distribution transformer operation conditions can't realize remote monitoring; just can not in time understand whether balance of circuit three-phase load; whether voltage is qualified; too high so that the phenomenon that burn of distribution transforming excess load temperature rise happens occasionally; even the stolen incident of some places generation distribution transformer, in addition, if after the RCD tripping operation; the manager also can't in time know, thereby can not in time recover to send.
The utility model content
The purpose of this utility model has been to overcome the defective of prior art, and a kind of countryside low-voltage electric distribution network automatization controlling device is provided, and this device possesses the advantage that the operation conditions of countryside low-voltage electric distribution network is realized remote monitoring.
Countryside low-voltage electric distribution network automatization controlling device of the present utility model comprises upper managing computer and slave computer; the structure of host computer mainly comprises GSM note transport module; chip microprocessor; level shifting circuit; wherein said GSM note transport module is used for finishing and receives and send short message; chip microprocessor is used for monitoring and management GSM note transport module; upper managing computer is carried out the computer management operation; with power supply station or electricity consumption service centre of electric company is unit; one of each power supply station or the configuration of electricity consumption service centre; all operations is finished on computers by program unit; upper managing computer can be by serial ports or USB interface to interconnect; described program unit mainly comprises the controlled area; display field and relevant database; described controlled area is used for sending instruction to slave computer; described display field is used for showing the short message content that slave computer sends, and described database comprises the display field Content Management; platform sheet distribution transforming machine account; employee's machine account; the work ticket management; the RCD management; the typing of checking meter links with marketing management system.Slave computer is a unit with the platform sheet, and promptly every transformer is equipped with a slave computer, and slave computer comprises the gsm communication circuit, single chip circuit, data acquisition circuit, relay circuit and power circuit etc.; Upper managing computer and slave computer are by the wireless connections of modern GSM mobile communications network, thus the long-range and trans-regional transmission of realization data.The circuit structure of whole countryside low-voltage electric distribution network automatization controlling device mainly is divided into gsm communication unit, Single Chip Microcomputer (SCM) program control unit, data acquisition unit, three-phase current-voltage sample unit, relay unit, distribution transforming state detection unit and this several sections of power circuit.
Upper managing computer and slave computer all comprise a gsm communication unit, described gsm communication unit mainly is made up of JB35G note transport module and single-chip microcomputer, described JB35G note transport module comes transceive data by the GSM SMS platform, be mainly used to set up wireless channel, receive and send short message; A RS232 serial ports and a TTL serial ports are arranged on the JB35G module, described RS232 serial ports can connect the COM serial port of computer, described TTL serial ports can connect the serial ports of single-chip microcomputer, form two cpu models by AT89C2051 and two single-chip microcomputers of AT90S8515, described single-chip microcomputer is mainly used to control JB35G note transport module, and the short message information of receiving is made an explanation and carries out, MAX232 finish and the RS232 of computer between communication, CD4094 finishes eight tunnel isolation drive that the output serial mode transfers parallel schema to.
The Single Chip Microcomputer (SCM) program control unit adopts AT89S51 series microprocessor, and external memory storage adopts AT24C04 to store data.
Described data acquisition unit mainly uses the ADC0809 A/D converter, function is to become the analog signal conversion of three-phase current-voltage sampling circuit collection digital signal to give microprocessor AT89S51, ADC0809 inside has output latch, can directly link to each other with the AT89S51 single-chip microcomputer, ADC0809 is the cmos component that has the control logic of 8 A/D converters, No. 8 variable connectors and microprocessor compatibility, it is a successive approximation type a/d converter, can with the single-chip microcomputer direct interface.ADC0809 is made up of one 8 path analoging switch, address latch and decoder, an A/D converter and a ternary output latch.Variable connector is chosen as 8 analog channels, allows 8 tunnel analog quantity timesharing input, and shared A/D converter is changed.Ternary output lock device is used to latch the digital quantity that A/D converts, and when the OE end is high level, just can take the data that convert away from ternary output latch.ALE is that address latch allows incoming line, and high level is effective, and when the ALE line was high level, address latch and decoder be A, B, and the address signal of three address wires of C latchs, and the analog quantity of selected passage is changed by transducer after deciphering.A, B and C are address input line, are used for the road analog quantity input on the gating IN0-IN7.ST is a conversion starting signal, when ST go up to jump along the time, all internal register zero clearings, following jumping along the time, begin to carry out A/D and change.In the transition period, ST should keep low level.EOC is the EOC signal, when EOC is high level, shows EOC, otherwise, show and carry out the A/D conversion.OE is used to control the data that three output latches are converted to single-chip microcomputer output for output allows signal.D0-D7 is the digital quantity output line, in order to satisfy ADC0809 to the input analog amount requirement, adopts transducer alternating current to be become the direct voltage of 0～5V for its sampling with voltage transitions.
Described distribution transforming state detection unit mainly is made up of 8 photoelectrical couplers (model is P521); these photoelectrical couplers can detect the abnormal running state of 1-8 place distribution transforming equipment as required; make the P10-P17 pin of microprocessor AT89S51 become low level; so that microprocessor is carried out relevant program; when RCD tripping operation or distribution transforming device A; B; C three-phase input voltage any one mutually or severally go offline mutually; or since the thief for isolated high-voltage with A; B; when the C three-phase input voltage cuts off; can in time information be sent to the single-chip microcomputer of distribution transforming, be sent to upper managing computer through the gsm communication unit again.
Described three-phase current-voltage sample unit is made of three current-voltage transducers and a voltage-voltage sensor, function is to gather analog signal, then, by OUT1-OUT4 output, the miniature series sensor that transducer can select for use Beijing star lattice or Huo Yuan company to produce.
Described relay unit is by No. eight relays output of adopting the light idol to isolate, and relay is mainly selected the small-sized DC relay of 12V for use.
The utility model is implemented the wireless-transmission network that automatically-monitored method adopts the gsm communication network to connect to countryside low-voltage electric distribution network, realize by slave computer and upper managing computer with the note form, upper managing computer mainly comprises service data inquiry to the distribution transforming control of being correlated with, reset operation after the RCD tripping operation, the limit value setting of distribution transformer, excess load is promptly operated a switch, the request of checking meter etc., above all operations is finished on computers by program unit, described program unit mainly comprises the controlled area, display field and relevant database, described controlled area is used for sending instruction to slave computer, described display field is used for showing the short message content that slave computer sends, and described database comprises the display field Content Management, platform sheet distribution transforming machine account, employee's machine account, the work ticket management, the RCD management, the typing of checking meter links with marketing management system; Slave computer is at first gathered parameters such as distribution transforming work at present voltage, three-phase current, temperature by data acquisition unit; become the required digital signal of single-chip microcomputer by the analog signal conversion that mould/the number conversion circuit is come collection then; whether the distribution transforming state detection unit detects 1-8 road RCD and whether moves and detect distribution transformer and have stolen etc. unusual; analog signal is gathered in three-phase current-voltage sample unit; and convert thereof into digital signal and give microprocessor AT89S51, accept and send short message by the gsm communication unit again.
But countryside low-voltage electric distribution network of the present utility model is implemented automatization controlling device not only voltage, three-phase current and the working temperature of the work at present of remote monitoring distribution transformer, and can carry out remote alarms to the improper outage of distribution transformer, play effects such as the antitheft and timely disposal of anti-theft fault.
Description of drawings
With embodiment the utility model is described in further detail with reference to the accompanying drawings.
Fig. 1 is the circuit structure schematic diagram of countryside low-voltage electric distribution network automatization controlling device of the present utility model;
Fig. 2 is the workflow schematic diagram of the slave computer of countryside low-voltage electric distribution network automatization controlling device of the present utility model;
Fig. 3 is the workflow schematic diagram of the upper managing computer of countryside low-voltage electric distribution network automatization controlling device of the present utility model;
Embodiment
The circuit structure of countryside low-voltage electric distribution network automatization controlling device of the present utility model shown in Figure 1 mainly is divided into (A part) distribution transforming state detection unit, (B part) three-phase current-voltage sample unit, (C part) data acquisition unit, (D part) Single Chip Microcomputer (SCM) program control unit, (E part) gsm communication unit, (F part) relay unit and this several sections of (G part) power circuit.
Described distribution transforming state detection unit mainly is made up of 8 photoelectrical couplers (model is P521); these photoelectrical couplers can detect the abnormal running state of 1-8 place distribution transforming equipment as required; make the P1.0-P1.7 pin of microprocessor AT89S51 become low level; so that microprocessor is carried out relevant program; when RCD tripping operation or distribution transforming device A; B; C three-phase input voltage any one mutually or severally go offline mutually; or since the thief for isolated high-voltage with A; B; when the C three-phase input voltage cuts off; can in time information be sent to the single-chip microcomputer of distribution transforming, be sent to upper managing computer through the gsm communication circuit again.
Described three-phase current-voltage sample unit is made of three current-voltage transducers and a voltage-voltage sensor, function is to gather analog signal, then, by OUT1-OUT4 output, the miniature series sensor that transducer can select for use Beijing star lattice or Huo Yuan company to produce.
Described data acquisition unit mainly uses the ADC0809 A/D converter, function is to become the analog signal conversion of three-phase current-voltage sampling circuit collection digital signal to give microprocessor AT89S51, ADC0809 inside has output latch, can directly link to each other with the AT89S51 single-chip microcomputer, ADC0809 is the cmos component that has the control logic of 8 A/D converters, No. 8 variable connectors and microprocessor compatibility, it is a successive approximation type a/d converter, can with the single-chip microcomputer direct interface.ADC0809 is made up of one 8 path analoging switch, address latch and decoder, an A/D converter and a ternary output latch.Variable connector is chosen as 8 analog channels, allows 8 tunnel analog quantity timesharing input, and shared A/D converter is changed.Ternary output lock device is used to latch the digital quantity that A/D converts, and when the OE end is high level, just can take the data that convert away from ternary output latch.ALE is that address latch allows incoming line, and high level is effective, and when the ALE line was high level, address latch and decoder be A, B, and the address signal of three address wires of C latchs, and the analog quantity of selected passage is changed by transducer after deciphering.A, B and C are address input line, are used for the road analog quantity input on the gating IN0-IN7.ST is a conversion starting signal, when ST go up to jump along the time, all internal register zero clearings, following jumping along the time, begin to carry out A/D and change.In the transition period, ST should keep low level.EOC is the EOC signal, when EOC is high level, shows EOC, otherwise, show and carry out the A/D conversion.OE allows signal for output, be used to control the data that three output latches are converted to single-chip microcomputer output, D0-D7 is the digital quantity output line, in order to satisfy ADC0809 to the input analog amount requirement, adopts transducer alternating current to be become the direct voltage of 0～5V for its sampling with voltage transitions.
The Single Chip Microcomputer (SCM) program control unit adopts AT89S51 series microprocessor, and external memory storage adopts AT24C04 to store data.
Described gsm communication unit adopts JB35G note transport module, and described JB35G note transport module comes transceive data by the GSM SMS platform, is mainly used to set up wireless channel, receives and send short message; A RS232 serial ports and a TTL serial ports are arranged on the JB35G module, described RS232 serial ports can connect the COM serial port of computer, described TTL serial ports can connect the serial ports of single-chip microcomputer, form two cpu models by AT89C2051 and two single-chip microcomputers of AT90S8515, described single-chip microcomputer is mainly used to control JB35G note transport module, and the short message information of receiving is made an explanation and carries out, MAX232 finish and the RS232 of computer between communication, CD4094 finishes eight tunnel isolation drive that the output serial mode transfers parallel schema to.
Described relay unit is by No. eight relays output of adopting the light idol to isolate, and relay is mainly selected the small-sized DC relay of 12V for use.
In addition, the effect of described power circuit is to provide required working power for whole low-voltage electric distribution network automatization controlling device.
Fig. 2 is the slave computer workflow schematic diagram of countryside low-voltage electric distribution network automatization controlling device of the present utility model; as seen from the figure; at first gather distribution transforming work at present voltage by data acquisition unit; three-phase current; parameters such as temperature; become the required digital signal of single-chip microcomputer by the analog signal conversion that mould/the number conversion circuit is come collection then; whether the distribution transforming state detection unit detects 1-8 road RCD and whether moves and detect distribution transformer and have stolen etc. unusual; analog signal is gathered in three-phase current-voltage sample unit; and convert thereof into digital signal and give microprocessor AT89S51, accept and send short message by the gsm communication unit again.
Fig. 3 is the upper managing computer workflow schematic diagram of countryside low-voltage electric distribution network automatization controlling device of the present utility model; upper managing computer mainly comprises service data inquiry to the distribution transforming control of being correlated with; reset operation after the RCD tripping operation; the limit value setting of distribution transformer; excess load is promptly operated a switch; the request of checking meter etc.; above all operations is finished on computers by program unit; described program unit mainly comprises the controlled area; display field and relevant database; described controlled area is used for sending instruction to slave computer; described display field is used for showing the short message content that slave computer sends, and described database comprises the display field Content Management; platform sheet distribution transforming machine account; employee's machine account; the work ticket management; the RCD management; the typing of checking meter links with marketing management system.
Above-described only is preferred implementation of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection range of the present utility model.
Claims (7)
1. countryside low-voltage electric distribution network automatization controlling device, comprise upper managing computer and slave computer, it is characterized in that: this device is divided into the gsm communication unit, the Single Chip Microcomputer (SCM) program control unit, data acquisition unit, three-phase current-voltage sample unit, relay unit, this several sections of distribution transforming state detection unit and power circuit, wherein, described Single Chip Microcomputer (SCM) program control unit connects the distribution transforming state detection unit, data acquisition unit and gsm communication unit, described three-phase current-voltage sample unit links to each other with data acquisition unit, described power circuit is connected in the input of this device, and relay unit is connected in the output of this device.
2. countryside low-voltage electric distribution network automatization controlling device as claimed in claim 1, it is characterized in that: described gsm communication unit adopts JB35G note transport module, described JB35G note transport module comes transceive data by the GSM SMS platform, be mainly used to set up wireless channel, receive and send short message; A RS232 serial ports and a TTL serial ports are arranged on the JB35G module, described RS232 serial ports can connect the COM serial port of computer, described TTL serial ports can connect the serial ports of single-chip microcomputer, form two cpu models by AT89C2051 and two single-chip microcomputers of AT90S8515, described single-chip microcomputer is mainly used to control JB35G note transport module, and the short message information of receiving is made an explanation and carries out, MAX232 finish and the RS232 of computer between communication, CD4094 finishes eight tunnel isolation drive that the output serial mode transfers parallel schema to.
3. countryside low-voltage electric distribution network automatization controlling device as claimed in claim 2 is characterized in that: described Single Chip Microcomputer (SCM) program control unit adopts AT89S51 series microprocessor, and external memory storage adopts AT24C04 to store data.
4. countryside low-voltage electric distribution network automatization controlling device as claimed in claim 3, it is characterized in that: described data acquisition unit mainly uses the ADC0809 A/D converter, and adopts transducer alternating current to be become the direct voltage of 0～5V for its sampling with voltage transitions.
5. countryside low-voltage electric distribution network automatization controlling device as claimed in claim 4, it is characterized in that: described distribution transforming state detection unit mainly is made up of 8 photoelectrical couplers, these photoelectrical couplers can detect the abnormal running state of 1-8 place distribution transforming equipment as required, make the P10-P17 pin of microprocessor AT89S51 become low level, so that microprocessor is carried out relevant program, and in time information is sent to upper managing computer through the gsm communication unit.
6. countryside low-voltage electric distribution network automatization controlling device as claimed in claim 5 is characterized in that: described three-phase current-voltage sample unit is made of three current-voltage transducers and a voltage-voltage sensor.
7. countryside low-voltage electric distribution network automatization controlling device as claimed in claim 6 is characterized in that: described relay unit is by No. eight relays output of adopting the light idol to isolate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113403 CN2836316Y (en) | 2005-07-11 | 2005-07-11 | Automatic monitoring device for low-voltage distribution network in rural area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113403 CN2836316Y (en) | 2005-07-11 | 2005-07-11 | Automatic monitoring device for low-voltage distribution network in rural area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2836316Y true CN2836316Y (en) | 2006-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520113403 Expired - Fee Related CN2836316Y (en) | 2005-07-11 | 2005-07-11 | Automatic monitoring device for low-voltage distribution network in rural area |
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| Country | Link |
|---|---|
| CN (1) | CN2836316Y (en) |
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2005
- 2005-07-11 CN CN 200520113403 patent/CN2836316Y/en not_active Expired - Fee Related
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| 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 |