CN1045507C - Wired transmission intelligence power consumption metering controlling instrument - Google Patents
Wired transmission intelligence power consumption metering controlling instrument Download PDFInfo
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- CN1045507C CN1045507C CN95110983A CN95110983A CN1045507C CN 1045507 C CN1045507 C CN 1045507C CN 95110983 A CN95110983 A CN 95110983A CN 95110983 A CN95110983 A CN 95110983A CN 1045507 C CN1045507 C CN 1045507C
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Abstract
The present invention relates to a wire transmission type intelligence metering control instrument for using electric, equipment using a wire channel, namely a wire telephone line for data collection and control for a user. The present invention belongs to the technical field of long distance real-time monitoring of an electric power system. A signal collecting part of the equipment uses an infrared photoelectric sensor connected with a single chip microprocessor by a sampling signal amplifier and a sampling interface isolation, a transmission part uses the present wire telephone line, and the single chip microprocessor is connected with the transmission line by a communicating interface which is composed of a data reception transmission circuit, a data modem, a telephone line protection circuit, a ringing reception detection circuit and a precommunication circuit.
Description
The present invention relates to the wired passage (local telephone network of a kind of employing, carrier telephone) modulation transmission technology, to user power utilization amount, power load and other electricity consumption data carry out in real time, gather accurately, calculate,, historical record transmission and the device that carries out effective straighforward operation, belong to the remote technical field of monitoring in real time of electric power system.
At present, the method for manually making a copy of, manually adjusting is generally adopted in the metering of the table meter in the society.This method needs the great amount of manpower resource on the one hand, can not measure each user's actual amount effectively in time, exactly on the other hand, and can not implement effectively control to electricity using at the peak time situation and overloading.In addition, have certain customers to adopt wireless transmission method, the his-and-hers watches meter is monitored, and this mode has many weakness, the wireless channel resource-constrained, and the phase mutual interference is big, error rate height, technical sophistication, investment is big, so not too suitable large-scale the popularization.In addition, also have and adopt the special circuit transmission means, the cost of its communication line is too high, and the line upkeep difficulty is big.Have and adopt local line audio signal modulation-transmission technology, its transmitting speed is slow excessively, and is long to the passage holding time, poor reliability, and the communication resources waste is big.
The objective of the invention is to the user provide a kind of data with user power utilization carry out automatic accurate, real time record inform the user and by wired passage be transferred to center control end, center control end can send to the device of user side remote control breaker tripping and closing order, reliable working performance, rational in infrastructure, wired transmission intelligence power consumption metering controlling instrument that cost is low.
Wired transmission intelligence power consumption metering controlling instrument of the present invention mainly comprises with the lower part, that is: chip microprocessor (1); address latch (2); memory under program (3); data memory (4); circuit (5) is selected in decoding; clock circuit (6); print I/O drive circuit (7); relay drives isolator (8); relay (9) is closed in jumping; sampling interface isolator (10); sampled signal amplifier (11); infrared photoelectric sensor (12); display interface device circuit (13); keyboard switch (14); reset circuit (15); Data Receiving transmit control device (16); data modem unit (17); ringing receiving test circuit (18); the pre-circuit (19) of connecting; speech channel protector (20); anti-power down circuit (21).Wherein chip microprocessor (1) comprises integrated circuit " U4 " and peripheral circuit; Address latch (2) is " U22 "; Memory under program (3) " U10 "; Data memory (4) is " U5 "; Decoding selects circuit (5) to comprise " U7, U8, U9 "; Clock circuit (6) is " U13, U17 "; Print I/O drive circuit (7) and comprise " U14, U24 "; Relay drives isolator (8) and comprises " U25, U26 " and transistor " D25, D26, D27, D28 "; Jumping is closed relay (9) and is comprised " J3, J4 "; Sampling interface isolator (10) comprises " U18, U19, U20, U21 " and diode " D10～D25 "; Sampled signal is amplified (11) and is comprised that " U29 " reaches " U30, U30B "; Display interface device circuit (13) and keyboard switch (14) are " U6 "; Reset circuit (15) comprises " U28C, U28D "; Data Receiving sending controling circuit (16), data modem unit (17) are combined into " U2 "; Ringing receiving test circuit (18) is " U27A, U27B, U3 "; The pre-circuit (19) of connecting comprises RK1, RK2, CK, J2, D3, and speech channel protective circuit (20) comprises R8, Cx, transformer T1, pressurizer DW1, DW2, and anti-power down circuit (21) comprises diode D8, resistance R 11, switch S 1 and rechargeable battery G2.Aspect circuit structure, the main sub-signal collection of this metering control instrument, signal transmission and signal processing several sections, wherein signals collecting partly adopts infrared photoelectric sensor (12).Isolating (10) by sampled signal amplification (11) and sampling interface is connected with chip microprocessor (1).Hop adopts existing wired telephone line (22); chip microprocessor (1) is connected with the wired telephone line (22) of hop by Data Receiving sending controling circuit (16), data modem unit (17), speech channel protective circuit (20) and ringing receiving test circuit (18) and the pre-communication interface of connecting circuit (19) composition.The output control part of signal processing comprises that relay drives isolator (8), jumps and close relay (9), the output of latch " U1 " " E0, E1, E2, E3 " joins with the input that relay drives the photoisolator " U25, U26 " in the isolator (8), the output of relay driver (8) is the collector electrode of transistor " D25, D26, D27, D28 ", is connected with the coil-end " 00,01,02,03 " that relay (9) repeat circuit J1, J2, J3, J4 are closed in jumping respectively.In speech channel protective circuit (20); adopt the triple protection method of overvoltage, stopping direct current, anti-thunderbolt; wherein overvoltage protection is at the former side's of transformer T1 two ends and meets two voltage stabilizing didoe DW1, DW2 that are in series; the positive pole of two voltage-stabiliser tubes links to each other, and negative pole is connected on respectively on two inputs of transformer.In straight protection, be connected in series a capacitance C between the normally opened contact of paying side and relay J 1 of transformer T1
xAspect anti-lightning strike protection, capacitance-resistance anti thunder strike circuit of serial connection between the switch motion end of relay J 1 and J2 is after a resistance R k and a capacitor C k are in parallel in this circuit, again with the resistance R K1 formation that is in series.The course of work at each position of the present invention is: be installed in electric supply meter (three-phase power electric meter, the idle ammeter of three-phase, single-phase power electric meter) infrared photoelectric sensor in (12) is Infrared emission and reception diode, when the blade in the rotating shaft of watt-hour meter scale rotates with kilowatt-hour meter, rotational displacement is converted to electric impulse signal, dial rotation one circle produces four pulse signals and does not enter microsystem through over-sampling interface isolator (10) with the assurance external disturbance, and then through U29, U30 is that signal amplification (11) enters single chip microcomputer (1) by latch U12, memory under program (3), address latch (2), the microcomputer system that data storage (4) is formed, this system will be according to the initial power consumption parameter that deposits in, voltage ratio (PT) comprising user power utilization, current ratio (CT), the kilowatt-hour meter rotational constant, time segmentation and various rated value during Pinggu, peak, also have system time etc., carry out record, calculate, statistics is analyzed.When the user need print, microcomputer system will be finished the printing of Chinese character form by I/O drive circuit (7) to printer transmission control and data code, relevant data information is presented on the display of forming by charactron and Light-Emitting Diode by driving in addition to display interface device circuit (13), when the user to keyboard switch (14) when operating, signal is gone into microcomputer system by latch U6 is laggard, and system will carry out various operations according to keyboard instruction.When behind user's the electricity consumption situation overrate or after the system centre control end assigns instruction by wired passage, this microcomputer system is by sending dependent instruction to latch U1, thereby after assigning instruction, this microcomputer system is by sending dependent instruction to latch U1, make triode D27, D28 conducting thereby isolate U16 at opposite side, and then make first order relay J 3, J4 action by photoelectricity.After the photoelectricity in the ringing receiving test circuit (18) is isolated U3 and U27 the AC signal of ringing-current is shaped as pulse signal, after microprocessor Intel8098 reception, microprocessor sends instruction to pre-connection circuit (19) after certain time-delay, pre-engage relay is connected, this moment, the system centre control end thought that passage connects, but Data Receiving sending controling circuit (16) is not connected in the physical channel, after the certain time-delay so that the passage situation is stable, microprocessor Intel8098 sends instruction to Data Receiving sending controling circuit (16), communication relay is connected, the control data modulation transfers device (17) to send carrier signal to wired telephone line (22) again, after the carrier signal that is sent etc. receiving system center control end, microprocessor Intel8098 will finish software communication stipulations with centring system center control end by U2, and this microprocessor sends relevant data and also receives information concerning order.Relevant data is stored in the data storage (4).Microprocessor sends instruction to pre-engage relay and communication relay it is disconnected and being connected of wired passage after communication is finished.So just, finish the communication of a deuterzooid metering control instrument and system centre control end.
The invention has the advantages that and adopted that the management automation degree of power supply department obviously improves behind this device, can in time understand and control each user's electricity consumption situation, saved great amount of manpower, and can finish real-time control to the user, effectively guaranteed the normal operation of electrical network, guarantee each user's normal electricity consumption in the net, can also implement control effectively to electricity using at the peak time situation and event of overload simultaneously.At the side signal transmission face, because what adopt is wire transmission, therefore do not take radio channel, and disturb for a short time, the error rate is low, and overall investment obviously reduces, and the reliability of use is much higher than wireless transmission.In addition, the present invention has versatility, adopt the chip microprocessor system, can gather, calculate, write down, show and print user data with displacement measuring instrument, and by wired passage, local telephone network or carrier telephone with center control carrying out communication, are reported relevant data and carry out the relevant controlling order.Constitute one like this and finish whole distributed parallel treatment system, realize the networking of microcomputer, thereby further improve the degree of office automation.This device adopts LSI device, good reliability, expansion easily, safeguard simple.Can provide inexpensive reliable supermatic utility unit for table meter automatic gauge, examination, the control of the system of electric power, petrochemical industry, steam.
Fig. 1 is a circuit structure block diagram of the present invention.
Fig. 2 is Data Receiving transtation mission circuit (16), data modem unit (17), ringing receiving test circuit (18), connect circuit (19), speech channel protective circuit (20) and relay in advance drives isolator (8), jumps and close the electrical schematic diagram of relay (9).
Fig. 3 is the electrical schematic diagram of sampling interface isolator (10), sampled signal amplifier (11).
Fig. 4 is the electrical schematic diagram of chip microprocessor (1), address latch (2), reset circuit (15).
Fig. 5 is the schematic diagram of memory under program (3), data memory (4), decoding circuit (5).
Fig. 6 is the electrical schematic diagram of clock circuit (6), printing I/O drive circuit (7), display interface device circuit (13), keyboard switch (14), anti-power down circuit (21).
Embodiment of the present invention are: integrated circuit U1, U6, U16, U24, the type that adopts is " 74LS245 ", U11, U13, U14, U15, the model that U22 adopts is " 74LS273 ", U25, U26, U3, U18, U19, U20, that U21 adopts is photoelectrical coupler " MCT6 ", U27, U28, U29, that U30 adopts is inverter " 74L514 ", the model that U2 adopts is " MC145443 ", the model that U4 adopts is " 8098 " microprocessor, U5 is memory " 6264 ", U7, the model that U8 U9 adopts is " 74LS138 ", U10 is memory " 27256 ", U17 is " 5832 ", U23 is " 74LS374 ", transistor D25, D36, D27, the model that D28 adopts is " 1815 ", infrared photoelectric sensor (12) adopts penetrates the formula infrared optical probe, be installed in the side of ammeter rotating disk, other all integrated circuits are installed on the wiring board, B0～B7 and the printer of integrated circuit U24 join, and have so just formed wired transmission intelligence power consumption metering controlling instrument of the present utility model.
Claims (6)
1. wired transmission intelligence power consumption metering controlling instrument, form by signals collecting part hop and signal processing part branch, it is characterized in that signals collecting partly adopts infrared photoelectric sensor (12), be connected with monolithic processor (1) by sampled signal amplifier (11) and sampling interface isolator (10); Hop adopts existing wired telephone line (22); chip microprocessor (1) is connected with the wired telephone line (22) of hop by Data Receiving sending controling circuit (16), data modem unit (17), speech channel protective circuit (20) and ringing receiving test circuit (18) and the pre-communication interface of connecting circuit (19) composition.
2. wired transmission intelligence power consumption metering controlling instrument according to claim 1, the output control part that it is characterized in that signal processing comprises that relay drives isolator (8), relay (9) is closed in jumping, the output E0 of latch U1, E1, E2, the input that E3 and relay drive the photoisolator " U25; U26 " in the isolator (8) joins, the output of relay driver isolator (8) is the collector electrode of transistor " D25; D26; D27; D28 ", closes relay (9) J1 with jumping respectively, J2, J3, J4 repeat circuit coil-end " 00; 01; 2; 03 " is connected.
3. wired transmission intelligence power consumption metering controlling instrument according to claim 1 and 2; it is characterized in that in the speech channel protective circuit (20); the former side's of transformer T1 two ends also meet voltage stabilizing didoe DW1, the DW2 of two series connection; the positive pole of two voltage-stabiliser tubes is connected, and negative pole is connected on respectively on two inputs of transformer.
4. wired transmission intelligence power consumption metering controlling instrument according to claim 1 and 2 is characterized in that being connected in series a capacitance C between the normally opened contact of paying side and relay J 1 of transformer T1
x
5. wire transmission formula according to claim 1 and 2 intelligence use metering control instrument, it is characterized in that being connected in series a capacitance-resistance anti thunder strike circuit between the switch motion end of relay J 1 and J2, and this circuit is by a resistance R
kWith a capacitor C
kAfter being in parallel again with resistance R k
1Formation is in series.
6. wired transmission intelligence power consumption metering controlling instrument according to claim 1 and 2 is characterized in that infrared photoelectric sensor (12) adopts the direct-injection type infrared optical probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95110983A CN1045507C (en) | 1995-03-25 | 1995-03-25 | Wired transmission intelligence power consumption metering controlling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95110983A CN1045507C (en) | 1995-03-25 | 1995-03-25 | Wired transmission intelligence power consumption metering controlling instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1132427A CN1132427A (en) | 1996-10-02 |
| CN1045507C true CN1045507C (en) | 1999-10-06 |
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ID=5078309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95110983A Expired - Fee Related CN1045507C (en) | 1995-03-25 | 1995-03-25 | Wired transmission intelligence power consumption metering controlling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1045507C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326359C (en) * | 2002-07-12 | 2007-07-11 | 北京恒电电源设备有限公司 | Power supply apparatus monitoring method and equipment based on common telephone network |
| CN101051414B (en) * | 2007-04-06 | 2010-05-26 | 杭州中昊科技有限公司 | Remote metering data transmission and control device |
| CN105044512A (en) * | 2015-07-23 | 2015-11-11 | 平高集团有限公司 | Substation ground potential automatic detection system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092745U (en) * | 1990-02-21 | 1992-01-08 | 钟晓燕 | Water, electricity, gas composite measuring set and its telemetering system |
-
1995
- 1995-03-25 CN CN95110983A patent/CN1045507C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092745U (en) * | 1990-02-21 | 1992-01-08 | 钟晓燕 | Water, electricity, gas composite measuring set and its telemetering system |
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| Publication number | Publication date |
|---|---|
| CN1132427A (en) | 1996-10-02 |
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