CN103280083A - Remote-centralized meter reading system for residents and meter reading method for electricity consumption - Google Patents
Remote-centralized meter reading system for residents and meter reading method for electricity consumption Download PDFInfo
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- CN103280083A CN103280083A CN2013101408278A CN201310140827A CN103280083A CN 103280083 A CN103280083 A CN 103280083A CN 2013101408278 A CN2013101408278 A CN 2013101408278A CN 201310140827 A CN201310140827 A CN 201310140827A CN 103280083 A CN103280083 A CN 103280083A
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- 230000006837 decompression Effects 0.000 claims description 8
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Abstract
The invention discloses a remote-concentrated meter reading system for residents. the remote-concentrated meter reading system is composed of a main station, an acquisition terminal and an electricity meter, wherein the main station communicates by a wireless public network and the acquisition terminal; the acquisition terminal and the electricity meter are connected through a bus mode; a data receiving device and a data sending device are arranged on the bus; and the data receiving device is provided with a power adapter. Improved designs comprise a sampling circuit, a switching circuit and a switching reset circuit, wherein the bus accesses to the data receiving device through the sampling circuit; and the power adapter accesses to a circuit board in the data receiving device through the switching circuit. Various works such as remote meter reading, load monitoring and the like are effectively carried out by utilizing technical requirements for a low-voltage acquisition system and various functions of the terminal, a concentrator, a wireless collector and a carrier collector, thereby greatly reducing pressure of low-voltage meter reading work. The application of the low-voltage remote meter reading system can effectively guide and ensure smooth implementation of various indicators of the low-voltage electricity consumption management.
Description
Technical field
The embodiment of the invention relates to a kind of resident's long-distance meter-reading system and method, is used for solving resident's remote meter reading, anomaly analysis, platform district line loss.
Background technology
Up to the present, resident's remote auto meter reading system deeply promotes the use in the overall situation, by resident's remote auto meter reading system, efficiently solves low-voltage remote and checks meter, and greatly reduces personnel, goods and materials and vehicle cost.Utilize resident's remote auto meter reading system function, grasp low pressure client's electricity consumption situation, electric energy meter ruuning situation in real time, effectively analyzed client's abnormal conditions, strengthened management and good service to the client; Utilize resident's remote auto meter reading system, carry out platform district line loss and calculate automatically, understand platform district ruuning situation, platform district line loss situation in real time, carried out platform district line loss and analyzed targetedly.
Summary of the invention
The embodiment of the invention has been used the technical requirement of low pressure acquisition system, utilize every function of terminal, concentrator, wireless collection device, carrier acquisition device, every work such as remote meter reading, load monitoring have effectively been carried out, significantly reduced the check meter pressure of work of low pressure, the smooth implementation of guaranteeing the every index of the low pressure management of power use can be effectively instructed in the application of low-voltage remote kilowatt meter reading-out system.
Carry out telecommunication by wireless public network between the main website of system and the acquisition terminal, adopt the bus communication mode to set up the network of checking meter between acquisition terminal and the ammeter, the digital collection terminal is connected with ammeter by bus.
Technical scheme 1: resident's remote auto meter reading system, it is by main website, acquisition terminal and ammeter are formed, described main website is by wireless public network and acquisition terminal communication in addition, acquisition terminal is connected with the mode of ammeter 3 by a bus, wherein be provided with data sink and data sending device in described bus, carry out electric power support and active data transmission by data sending device to data sink, wherein in described data sink, be equiped with power supply adaptor, it improves design and has comprised: sample circuit is used in a period of time T DC voltage on the bus being sampled; On-off circuit is connected in sample circuit, is used for the on/off state at described period of time T inner control data sink; The switch back circuit is coupled between described sample circuit and the on-off circuit, is used for exceeding a threshold value V at the voltage V of described data sink
THDThe conducting of time control on-off circuit and off-state and voltage compensated.Wherein bus inserts described data sink by sample circuit, and described power supply adaptor is by the circuit board in the on-off circuit access data sink.
In one embodiment, described data sending device is acquisition terminal; Perhaps described data sending device is ammeter; Perhaps described data sending device is the integrated composition of acquisition terminal and ammeter.
In one embodiment, described data sink is ammeter.
In one embodiment, described bus is the M-BUS bus; Perhaps described bus is RS485 multiple twin bus.
In one embodiment, further with resistance-capacitance circuit of switch back circuit installing, be used for connecting an extra+24V compensating voltage source and it is carried out the DC decompression conversion.
In one embodiment, described switch back circuit further is provided with a voltage feed-in circuit with resistance-capacitance circuit coupling, and the compensating voltage source that is used for carrying out behind the DC decompression is forced to be stabilized in a numerical value, and the described switch back circuit of feed-in.
In one embodiment, described sample circuit further comprises the amplifying circuit that inserts on-off circuit, is used for described DC voltage is amplified.
In one embodiment, described switch back circuit further comprises the control circuit that is connected with on-off circuit, is used for producing again on described on-off circuit in described period of time T an output voltage.
Technical scheme 2: by the electricity consumption of resident meter register method according to aforesaid resident's remote auto meter reading system, it comprises step:
Set up data sending device and data sink in bus;
By data sending device to data sink energising 24V DC voltage;
In a period of time T, obtain 24V DC voltage on the bus by sample circuit;
By amplifying circuit d. c. voltage signal is amplified, by the switch back circuit signal after amplifying is carried out voltage stabilizing and filtering, and judge whether it exceeds a threshold value V
THD
If exceed described threshold value V
THD, then cut off on-off circuit by control circuit, obtain an outside compensating voltage source through DC decompression by resistance-capacitance circuit, by voltage feed-in circuit with the described switch back circuit of this compensating voltage source feed-in to judge;
On described on-off circuit, produce a 12V DC voltage again to export to data sink;
Send the request of checking meter by data sending device to data sink;
Calculate the electricity consumption of resident data by data sink, feed back to data sending device;
Send data by data sending device to main website.
The technique effect of the embodiment of the invention is apparent, and it has solved following problem: finish the remote meter reading work of all low-voltage customers; Utilize resident's long-distance meter-reading system to implement remote meter reading work; Utilize resident's remote auto meter reading system to understand user's electricity consumption situation, load condition; Utilize and to have contained to estimate with resident's remote auto meter reading system and phenomenon such as copy, mistake is copied; Utilize with the initiatively reporting device seal unlatching of resident's remote auto meter reading system, the indication electric weight descends, parameter modification, have a power failure, power on, electric weight (power) is differential, current transformer short circuit, open circuit, voltage negative phase sequence, the electric current reversed polarity, idle over-compensation, idle under-compensation, the table meter stops walking, electric weight flies away, and cell voltage is crossed the low abnormal alarm information that waits.Can analyze the phase failure criterion of the various situations of low pressure; Use resident's remote auto meter reading system, solve the management work of zero voltameter meter and bug list meter.
System adopts special line communication, and the speed of checking meter is fast, and reliable communications can guarantee the real-time Communication for Power of 24h every day, is the most reliable and the most stable system at present; System adopts integrated ammeter, and ammeter measuring accuracy height can directly read the internal memory electric energy data of ammeter in the time of communication, avoided the secondary measurement of electric flux.
Description of drawings
Fig. 1 is the structure principle chart of resident's remote auto meter reading system of the present invention;
Fig. 2 is the circuit theory diagrams of the power supply adaptor of data sink of the present invention.
Embodiment
With reference to Fig. 1, the preferred embodiment of resident's remote auto meter reading system of the present invention mainly is made up of main website 1, acquisition terminal 2 and ammeter 3, and described main website 1 is by wireless bulletin network 4(for example GPRS, ZIGBEE or WLAN) be preferably a data concentrator with acquisition terminal 2() in addition communication be connected.Acquisition terminal 2 is preferably low pressure carrier wave pulse ammeter with ammeter 3() mode by a bus 5 is connected.Be provided with data sink and data sending device in described bus 5, send to power for operation support (for example can remain on the device that articulates on the bus and can both continue to power on, can carry out data read-write operation to the equipment on the bus at any time in this case) and the active data that data sink carries out device itself by data sending device.
With reference to Fig. 2, wherein shown the circuit of main functional parts, be not to be that whole circuit are formed, and for example wherein resistance R 1～R6 or transistor D2 etc. only as accepting components and parts, need not describe emphatically.In described data sink, be equiped with power supply adaptor 21(for the outstanding purpose that illustrates, it is illustrated in separately on the bus 6, in fact, it is gone up as the data receiving unit, a part of circuit of ammeter 3 for example) it improves design and has comprised: sample circuit 211, comprise 1K Ω separating flow sampling resistance 2112, be used in a period of time T, the DC voltage on the bus 5 being sampled; On-off circuit 212, preferable triode Q2121 and the switching tube Q2122 that is attached thereto of comprising.It is connected in sample circuit 211, and in one embodiment, bus 5 is used for the on/off state at described period of time T inner control data sink by the internal circuit board that sampling shunt resistance 2112 and switching tube Q2122 insert data sink; Switch back circuit 213 is coupled between described sample circuit 211 and the on-off circuit 212, is used for exceeding a threshold value V at the voltage V of described data sink
THDThe conducting of time control on-off circuit 212 and off-state and voltage compensated; Wherein bus 5 inserts described data sink by sample circuit 211, the circuit board that described power supply adaptor 21 inserts in the data sink by on-off circuit 212, for example Nei Bu dsp chip, communicating circuit or display.
In one embodiment, described data sending device is preferably acquisition terminal 2; Perhaps described data sending device also can be ammeter 3; Perhaps described data sending device is acquisition terminal 2 and the integrated composition of ammeter 3, and for example the coupling of two dissimilar electric devices is used, and can realize the processing multiplying power of data and multi-purpose expansion etc.
In one embodiment, described data sink is ammeter 3.Structural principle of the present invention is the exchange processing of carrying out data by the form of bus, and in the equipment that this bus articulates, the highest equipment of level is set, other equipment need provide operating voltage (selecting the DC voltage of 10V～40V in one embodiment) by this sophisticated equipment, and respond the request of data that sophisticated equipment sends in bus, communication as an efficient real time, under any circumstance, a default receiving cycle T is set, data sink carries out work in this period T, and at other constantly, for example in order to reduce the purpose of power consumption, the data receiver on the bus is set to dormant state.
In one embodiment, described bus 5 is the M-BUS bus, under the situation of selecting the M-BUS bus, data sending device (for example acquisition terminal 2) sends carrier data by the DC voltage of 24V～36V, preferable use 24V is as Digital Logic 0 signal, 36V is as Digital Logic 1 signal, and namely the MCU of acquisition terminal 2 sends the one-period square-wave signal to the M-BUS bus); Perhaps described bus 5 is RS485 multiple twin bus, and when selecting the RS485 bus, voltage selects 10V as the logical zero level, and 16V is as the logical one level.
With reference to Fig. 2, in one embodiment, select the M-BUS bus to implement, further with resistance-capacitance circuit 214 of switch back circuit 213 installings, resistance-capacitance circuit 214 a preferable 100K Ω resistance 2141 and the 20nF safety electric capacity 2142 of comprising be used for to connect an extra+24V compensating voltage source and it are carried out the direct current conversion.In another embodiment, further comprise the filter capacitor 2145 that the 24V compensating voltage source is worked, and the reference source 2143(of two ends connection with it is preferably pressure-sensitive diode) and switching tube Q2144.
In one embodiment, described switch back circuit 213 further is provided with a voltage feed-in circuit 215 that is coupled with resistance-capacitance circuit 214, a preferable electric capacity 2151 and the switching tube Q2152 of comprising, the compensating voltage source that is used for carrying out behind the DC decompression is forced to be stabilized in a 24V numerical value, and the described on-off circuit 212 of feed-in.
In one embodiment, described sample circuit 211 further comprises the amplifying circuit 2111 that inserts on-off circuit 212, be used for described DC voltage is amplified, arrange wherein that node N2 and N3 insert amplifying circuit 2111 as forward end and negative end respectively on the bus 5.
In one embodiment, described switch back circuit 213 comprises that further the control circuit 2121(that is connected with on-off circuit 212 is preferably 8 bit DSP chips), for the output voltage that in described period of time T, on described on-off circuit 212, produces a 12V again.Certainly, the technician it should be understood that this control circuit 2121 can be used as a clock circuit, in the time period in described period T, the disconnection of its gauge tap pipe Q2122, and in another time period, on on-off circuit 212, carry the voltage of a 12V again again.Under the situation that the voltage of for example node N1 reduces (for example short circuit), the circuit that needs a compensation, but select 12V voltage but not 24V voltage, learn by calculating, it is lowest power consumption and optimum operating voltage that ammeter is selected 12V voltage at this moment, 24V voltage then guarantees the real-time monitoring on ammeter 3 and the acquisition terminal 2, if bus breaks down, then still can keep the operating voltage of ammeter 3 and not losing of data.The technician should understand, operating voltage should be stablized status 24V and for example reduction voltage circuit or comparator circuit etc. by its inside guarantees the stable of voltage on the dsp chip 2121.
In the certain hour period T ' after, control circuit 2121 meeting gauge tap Q2121 conductings, further conducting Q2122 then so that ammeter 3 inserts 5 one period of time T that preset of M-BUS buses, judge whether to exist data stop paying out or situation such as power down short circuit (T '＜T).If in period T, still find to exist fault, then need switch back circuit 213 to insert on-off circuit 212 this moment, and further control the action of resistance-capacitance circuit 214.
With reference to Fig. 1 and 2, in the second embodiment of the present invention, the electricity consumption of resident meter register method by according to aforesaid resident's remote auto meter reading system is characterized in that comprising step:
Set up data sending device and data sink in bus 5;
By data sending device to data sink energising 24V DC voltage;
In a period of time T, obtain 24V DC voltage on the bus 5 by sample circuit 211;
By amplifying circuit 2111 d. c. voltage signal is amplified, carry out voltage stabilizing and filtering by the signal after 213 pairs of amplifications of switch back circuit, preferably select for use the filter capacitor 2142 and 2145 of a resistance-capacitance circuit 214 to realize, and judge whether it exceeds a threshold value V
THD
If exceed described threshold value V
THD, then cut off on-off circuits 212 by control circuit 2111, obtain an outside compensating voltage source through DC decompression by resistance-capacitance circuit 214, by voltage feed-in circuit 215 with the described switch back circuit 213 of this compensating voltage source feed-in to judge;
On described on-off circuit 212, produce a 12V DC voltage again to export to data sink;
Send the request of checking meter by data sending device to data sink;
Calculate the electricity consumption of resident data by data sink, feed back to data sending device;
Send data by data sending device to main website 1.
In one embodiment, the voltage of acquisition node N1 is when its voltage has reached a predetermined voltage threshold V
THDAfter, switching tube Q2144 conducting, thereby further by resistance 2141 conductings Q2152, and the base stage that therefore further inserts Q2121 by resistance R 5 is ended it, and has therefore ended the switch Q2122 on the bus.And under the normal condition, Q2152 ends, and therefore the equal conducting of Q2121 and Q2122 has realized once switching.
Claims (9)
1. resident's remote auto meter reading system, it is made up of main website, acquisition terminal and ammeter, described main website is by wireless public network and acquisition terminal communication in addition, acquisition terminal is connected with the mode of ammeter by a bus, it is characterized in that: be provided with data sink and data sending device in described bus, carry out electric power support and active data transmission by data sending device to data sink, wherein be equiped with power supply adaptor in described data sink, it improves design and has comprised:
Sample circuit is used in a period of time T DC voltage on the bus being sampled;
On-off circuit is connected in sample circuit, is used for the on/off state at described period of time T inner control data sink;
The switch back circuit is coupled between described sample circuit and the on-off circuit, is used for exceeding a threshold value V at the voltage V of described data sink
THDThe conducting of time control on-off circuit and off-state and voltage compensated;
Wherein bus inserts described data sink by sample circuit, and described power supply adaptor is by the circuit board in the on-off circuit access data sink.
2. resident's remote auto meter reading system according to claim 1, it is characterized in that: described data sending device is acquisition terminal; Perhaps described data sending device is ammeter; Perhaps described data sending device is the integrated composition of acquisition terminal and ammeter.
3. resident's remote auto meter reading system according to claim 1, it is characterized in that: described data sink is ammeter.
4. resident's remote auto meter reading system according to claim 1, it is characterized in that: described bus is the M-BUS bus; Perhaps described bus is RS485 multiple twin bus.
5. resident's remote auto meter reading system according to claim 1 is characterized in that: further with resistance-capacitance circuit of switch back circuit installing, be used for connecting an extra compensating voltage source and it is carried out the DC decompression conversion.
6. resident's remote auto meter reading system according to claim 5, it is characterized in that: described switch back circuit further is provided with a voltage feed-in circuit that is coupled with resistance-capacitance circuit, the compensating voltage source that is used for carrying out behind the DC decompression is forced to be stabilized in a numerical value, and the described switch back circuit of feed-in.
7. resident's remote auto meter reading system according to claim 1, it is characterized in that: described sample circuit further comprises the amplifying circuit that inserts on-off circuit, is used for described DC voltage is amplified.
8. resident's remote auto meter reading system according to claim 1, it is characterized in that: described switch back circuit further comprises the control circuit that is connected with on-off circuit, is used for producing again on described on-off circuit in described period of time T an output voltage.
9. by the power consumption meter register method of resident's remote auto meter reading system according to claim 1, it is characterized in that comprising step:
Set up data sending device and data sink in bus;
By data sending device to data sink energising 24V DC voltage;
In a period of time T, obtain 24V DC voltage on the bus by sample circuit;
By amplifying circuit d. c. voltage signal is amplified, by the switch back circuit signal after amplifying is carried out voltage stabilizing and filtering, and judge whether it exceeds a threshold value V
THD
If exceed described threshold value V
THD, then cut off on-off circuit by control circuit, obtain an outside compensating voltage source through DC decompression by resistance-capacitance circuit, by voltage feed-in circuit with the described switch back circuit of this compensating voltage source feed-in to judge;
On described on-off circuit, produce a 12V DC voltage again to export to data sink;
Send the request of checking meter by data sending device to data sink;
Calculate the electricity consumption of resident data by data sink, feed back to data sending device;
Send data by data sending device to main website.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101408278A CN103280083A (en) | 2013-04-22 | 2013-04-22 | Remote-centralized meter reading system for residents and meter reading method for electricity consumption |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101408278A CN103280083A (en) | 2013-04-22 | 2013-04-22 | Remote-centralized meter reading system for residents and meter reading method for electricity consumption |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991101A (en) * | 2015-06-24 | 2015-10-21 | 苏州市新瑞奇节电科技有限公司 | Intelligent electric meter with built-in data transmission terminal power supply |
| CN105894765A (en) * | 2015-01-22 | 2016-08-24 | 天津工业大学 | WLAN-based electric energy collecting system |
| CN108226690A (en) * | 2016-12-21 | 2018-06-29 | 国家无线电监测中心检测中心 | Detection circuit |
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| CN1464484A (en) * | 2002-06-06 | 2003-12-31 | 西安龙辰通信有限公司 | Meter reading information transmission system using GSM network and a meter reading apparatus used for the transmission system |
| US20070057814A1 (en) * | 2005-07-12 | 2007-03-15 | Bar-Giora Goldberg | Remote meter reader using a network sensor system and protocol |
| CN201450455U (en) * | 2009-07-14 | 2010-05-05 | 黄挺 | Intelligent power adapter with adjustable output voltage |
| CN203149824U (en) * | 2013-04-22 | 2013-08-21 | 国家电网公司 | Remote concentrated meter reading system for residents |
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2013
- 2013-04-22 CN CN2013101408278A patent/CN103280083A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464484A (en) * | 2002-06-06 | 2003-12-31 | 西安龙辰通信有限公司 | Meter reading information transmission system using GSM network and a meter reading apparatus used for the transmission system |
| US20070057814A1 (en) * | 2005-07-12 | 2007-03-15 | Bar-Giora Goldberg | Remote meter reader using a network sensor system and protocol |
| CN201450455U (en) * | 2009-07-14 | 2010-05-05 | 黄挺 | Intelligent power adapter with adjustable output voltage |
| CN203149824U (en) * | 2013-04-22 | 2013-08-21 | 国家电网公司 | Remote concentrated meter reading system for residents |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105894765A (en) * | 2015-01-22 | 2016-08-24 | 天津工业大学 | WLAN-based electric energy collecting system |
| CN104991101A (en) * | 2015-06-24 | 2015-10-21 | 苏州市新瑞奇节电科技有限公司 | Intelligent electric meter with built-in data transmission terminal power supply |
| CN108226690A (en) * | 2016-12-21 | 2018-06-29 | 国家无线电监测中心检测中心 | Detection circuit |
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Application publication date: 20130904 |