CN102044136B - Power collection device - Google Patents
Power collection device Download PDFInfo
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- CN102044136B CN102044136B CN201010191110.2A CN201010191110A CN102044136B CN 102044136 B CN102044136 B CN 102044136B CN 201010191110 A CN201010191110 A CN 201010191110A CN 102044136 B CN102044136 B CN 102044136B
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Abstract
The invention discloses a power collection device which adopts a non-electrode contact mode and has high accuracy and intelligence. The power collection device comprises a portable power collector and a power meter, wherein the power collector can be a notebook computer, a PDA (personal digital assistant) or an anti-misoperation computer key with a read-write head, or a homemade portable controller, and is mainly used for control of data reading and writing and process control of specific applications; the power meter is installed in an electric circuit to be metered and is mainly used for power metering and data communication with the power collector; the power collector can send a control signal by magnetic coupling and supply working power for the power meter, and the power meter can return metered data to the power collector through magnetic coupling communication. The power collection device can be widely used in the fields of electricity, petroleum, chemistry, transportation, etc.
Description
Technical field
The present invention relates to a kind of electric quantity collector.
Background technology
In prior art, electric quantity acquisition has off-line type and two kinds of methods of online acquisition conventionally, is mainly used in the measurement of the electric weight such as voltage, electric current, frequency, power.And the problem of following two aspects of current off-line type electric quantity acquisition ubiquity:
1, adopt electrode contact mode to measure, easily produce the problem that data are misread in loose contact, loose contact is generally due to anodizing or physical construction is impaired etc. that reason causes;
2, acquisition method is original, and intelligent degree is low, and operating process is complicated, can not meet the requirement of increasing work efficiency.
Summary of the invention
Technical matters to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of non-electrode contact, high, the intelligentized electric quantity collector of accuracy rate are provided.
The technical solution adopted in the present invention is: the present invention includes collector and being arranged on needs to measure the electrical measurement device in electric loop, and described electrical measurement device and collector carry out data communication, and described collector comprises:
The acquisition controller of controlling for data reading and writing;
Frequency read/write, is controlled by described acquisition controller and produces radiofrequency signal, for sending the data to electrical measurement device and receiving the measurement data that electrical measurement device returns;
Described electrical measurement device comprises:
With the suitable Transmit Receive Unit of described frequency read/write;
For the sampling unit that tested electric quantity signal is sampled and processed;
Processor, for accepting the control signal from collector, and also storage after electric quantity signal is detected and changed;
And radio-frequency electrical energy change-over circuit, described radio-frequency electrical energy change-over circuit is as the working power of electrical measurement device, by described Transmit Receive Unit, receive the radio-frequency electrical energy from collector, after overcommutation, filtering, voltage stabilizing, give described Transmit Receive Unit, sampling unit and processor power supply.
Described electrical measurement device also comprises that further above-mentioned frequency read/write comprises:
Produce the radio-frequency signal generating circuit of radiofrequency signal;
Data transmit circuit, the data that need to send acquisition controller are modulated and power driving circuit is controlled and be sent to power;
Receive the data receiver circuit of the measurement data that described electrical measurement device returns;
The power driving circuit that radiofrequency signal is amplified;
And the radio-frequency antenna I being connected with power driving circuit;
Acquisition controller in described collector transmits control signal by frequency read/write, by Transmit Receive Unit, accepting this control signal is sent in processor again, described processor detects and mould/number conversion the tested electric quantity signal from sampling unit, and the electric quantity signal after processing is returned to collector.
Described data receiver circuit and power driving circuit shared radio frequency antenna I.
Further above-mentioned Transmit Receive Unit comprises:
With the be coupled radio-frequency antenna II of communication of described radio-frequency antenna I;
Signal of communication receiving circuit for receiving the control signal from collector, is passed to processor after shaping, demodulation;
Signal of communication transtation mission circuit, for sending the measurement data after the machine address and sampling to collector.
Further the above-mentioned processor of stating comprises: single-chip microcomputer and the A/D converter and the conversion control circuit that are connected with single-chip microcomputer adaptation, conversion control circuit is connected in A/D converter the mould/number conversion of data is controlled.
Further the above-mentioned sampling unit of stating specifically comprises:
Switching value input circuit for switching value sample of signal;
Simulated measurement input circuit for analog signals sampling; And
The electric signal finishing circuit being connected with simulated measurement input circuit with switching value input circuit, for converting tested electric quantity signal to the electric quantity signal that meets described A/D converter range.
Beneficial effect of the present invention is:
1, owing to the present invention includes collector and electrical measurement device two parts, by the radio-frequency antenna coupling communication on the two, gather electric flux, there is not loose contact problem;
2, adopt cordless to gather measurement data, can be easily and aforementioned all kinds of portable equipment interfaces;
3, resolution is high, reaches as high as 1/4096, and can automatically adjust as required; And accuracy rate is high, compare the problem that electrode contact method has avoided data to misread;
4, owing to adopting electromagnetic coupled communication, collecting efficiency is high, and the general single-point acquiring time is no more than two seconds;
5, owing to also can comprising radio-frequency electrical energy change-over circuit in this device, by described Transmit Receive Unit, receive the radio-frequency electrical energy from collector, after overcommutation, filtering, voltage stabilizing, give described Transmit Receive Unit, sampling unit and processor power supply.Electrical measurement device is interior without battery like this, without external power supply, therefore, without the problem of considering power supply, installs relatively simple;
6, in the situation that collector is powered, under non-measuring state, electrical measurement device is in power failure state, and anti-electromagnetic failure ability is stronger.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of electric quantity collector of the present invention;
Fig. 2 is the concrete structure block diagram of collector in electric quantity collector;
Fig. 3 is the concrete structure block diagram of electrical measurement device in electric quantity collector.
Embodiment
This electric quantity collector can be widely used in fields such as electric power, oil, chemical industry, traffic, take electric power as example, can in following system, use:
1, power equipment inspection tour system: for detection of operating voltage, electric current, cycle, power factor, temperature, humidity, pressing plate or the auxiliary contact state etc. of equipment;
2, electric power microcomputer prevents electric misoperation system: can be used for the design of electrolock, electrical verification lock, state-detection lock, position probing lock;
3, power equipment system for detecting temperature, for the temperature at each position of off-line measurement equipment.
As shown in Figure 1, this collector device comprises portable collector 1 and electrical measurement device 2 two parts, collector 1 can be notebook computer, PDA or microcomputer anti-error computer key or the homemade portable controller that has installed radio frequency read/write head additional, is mainly used in the reading and writing control of data and the flow process of application-specific and controls.Electrical measurement device 2 is mounted in to be needed to measure the electrical measurement parts in electric loop, is mainly used in electrical measurement and carries out data communication with collector 1.
See Fig. 2, described collector 1 comprises acquisition controller 3 and frequency read/write 4, acquisition controller 3 is main control units of collector, can be PDA, notebook computer, microcomputer anti-error computer key or homemade portable controller, be mainly used in reading and writing control and the particular application flow process control (as: computer anti-misoperation and lockout operation) of data.Frequency read/write 4 is controlled by described acquisition controller 3 can produce radiofrequency signal, for sending the data to electrical measurement device 2 and receiving the measurement data that electrical measurement device 2 returns, it comprises radio-frequency signal generating circuit 401, data transmit circuit 402, data receiver circuit 403, power driving circuit 404 and radio-frequency antenna I405.Radio-frequency signal generating circuit 401 is for generation of radiofrequency signal, and its frequency range can be in several KHz between several Gigahertzs, the square-wave signal that normally sine wave or dutycycle are 50%; The measurement data that data receiver circuit 403 returns for receiving electrical measurement device, it and power driving circuit 404 share an antenna, mainly functional circuits such as signal amplification, shaping, demodulation, decodings, consist of; Data transmit circuit 402 sends by power driving circuit and antenna for the data that acquisition controller will be sent, and mainly signal modulation circuit and power control circuit, consists of; Power driving circuit 404 is for carrying out power amplification to radiofrequency signal, and the radiofrequency signal after amplification is outwards launched by radio-frequency antenna I405; Radio-frequency antenna I405 is radio-frequency (RF) energy output and the data reading and writing passage of collector, and different with power according to frequency can be the tours antenna of various sizes, dipole antenna or microwave electric wire (microstrip antenna, electromagnetic horn, radiating guide).
As shown in figures 1 and 3, described electrical measurement device 2 comprises: with the suitable Transmit Receive Unit 5 of above-mentioned frequency read/write 4; For the sampling unit 7 that tested electric quantity signal is sampled and processed; And for accepting the control signal from collector, and the processor 6 of also storing after electric quantity signal is detected and changed.Transmit Receive Unit 5 comprises signal of communication transtation mission circuit 503, signal of communication receiving circuit 502 and radio-frequency antenna II501, the radio-frequency antenna I405 coupled communication in radio-frequency antenna II501 and Fig. 2; Communication signal transtation mission circuit 503 is for sending the measurement data after the machine address information and sampling to collector 1; Communication signal receiving circuit 502, for receiving the control data from collector 1, has shaping, the functions such as demodulation, and the data after demodulation are directly passed in the processor 6 of low-power consumption.Above-mentioned sampling unit 7 comprises electric signal finishing circuit 701, switching value input circuit 702 and simulated measurement input circuit 703.Electric signal finishing circuit 701 is for tested electric quantity signal being converted to the electric quantity signal that meets A/D converter range, conventionally by amplifying circuit, and attenuator circuit, the compositions such as match circuit; Switching value input circuit 702 is for the sampling of switching value signal, and sampling object is as command switch contact, equipment auxiliary switch contact etc.; Simulated measurement input circuit 703 is for the sampling of analog signals, the electric quantity signals such as sampling voltage, electric current, frequency.Processor 6 is main control units of electrical measurement device, is generally the single-chip microcomputer 601 of extremely low power dissipation, can carry A/D converter 602 and conversion control circuit 603, and its major function has following 4 aspects:
1, the analog signals after electric signal finishing circuit is processed is carried out to mould/number conversion storage;
2, the switching value signal after electric signal finishing circuit is processed is detected and stored;
3, by communication signal receiving circuit, receive the control signal from collector;
4, by communication signal transtation mission circuit, send the address information of this electrical measurement device and the information about power after sampling.
The power supply mode of electrical measurement device 2 is varied, can be from charged pool, or the mode such as external power supply, in this programme, best employing is to power to start 2 work of electrical measurement device from the radio-frequency electrical energy of collector 1, electrical measurement device 2 is interior without battery or without external power supply like this, install relatively simple, can also be by the intelligent duty of controlling electrical measurement device 2 of collector 1; Its concrete scheme is in electrical measurement device 2, also to comprise radio-frequency electrical energy change-over circuit 8, the radio-frequency electrical energy receiving from collector 1 by described Transmit Receive Unit 5 is given described Transmit Receive Unit 5, sampling unit 7 and processor 6 power supplies after overcommutation, filtering, voltage stabilizing.
In sum, electric quantity collector acquisition method and the principle of this programme: Portable acquiring device 1 enters after acquisition state, acquisition controller 3 starts frequency read/write 4, by the outside electromagnetic radiation energy of radio-frequency antenna I405, radio-frequency antenna I405 on collector 1 is during near radio-frequency antenna II501 on electrical measurement device 2, between two antennas, form definite Energy Coupling relation (conventionally representing with coupling coefficient), when coupling coefficient reaches certain value, electrical measurement device 2 just can obtain enough electric energy, thereby enter duty, its workflow is: the electric signal coming from radio-frequency antenna coupling forms through electrical energy conversion circuit 8 can be for the working power of other circuit, after powering on, low power processor 6 first by signal of communication transtation mission circuit 503, to collector 1 circulation, sends the machine address, by signal of communication receiving circuit 502, receive the control command that collector 1 is sent simultaneously, if received orders, in circulation passback order, require the electric quantity data detecting.
Claims (5)
1. an electric quantity collector, comprises collector and is arranged on needing to measure the electrical measurement device in electric loop, and described electrical measurement device and collector carry out data communication, it is characterized in that, described collector comprises:
The acquisition controller of controlling for data reading and writing;
Frequency read/write, is controlled by described acquisition controller and produces radiofrequency signal, for sending the data to electrical measurement device and receiving the measurement data that electrical measurement device returns;
Described electrical measurement device comprises:
With the suitable Transmit Receive Unit of described frequency read/write;
For the sampling unit that tested electric quantity signal is sampled and processed;
Processor, for accepting the control signal from collector, and also storage after electric quantity signal is detected and changed;
And radio-frequency electrical energy change-over circuit, by described Transmit Receive Unit, receive the radio-frequency electrical energy from collector, after overcommutation, filtering, voltage stabilizing, give described Transmit Receive Unit, sampling unit and processor power supply;
Described frequency read/write comprises:
Produce the radio-frequency signal generating circuit of radiofrequency signal;
Data transmit circuit, the data that need to send acquisition controller are modulated and power driving circuit is controlled and be sent to power;
Receive the data receiver circuit of the measurement data that described electrical measurement device returns;
The power driving circuit that radiofrequency signal is amplified;
And the radio-frequency antenna I being connected with power driving circuit;
Acquisition controller in described collector transmits control signal by frequency read/write, by Transmit Receive Unit, accepting this control signal is sent in processor again, described processor detects and mould/number conversion the tested electric quantity signal from sampling unit, and the electric quantity signal after processing is returned to collector.
2. a kind of electric quantity collector according to claim 1, is characterized in that, described data receiver circuit and power driving circuit shared radio frequency antenna I.
3. a kind of electric quantity collector according to claim 1, is characterized in that, described radio-frequency receiving-transmitting
Unit comprises:
With the be coupled radio-frequency antenna II of communication of described radio-frequency antenna I;
Signal of communication receiving circuit for receiving the control signal from collector, is passed to processor after shaping, demodulation;
Signal of communication transtation mission circuit, for sending the measurement data after the machine address and sampling to collector.
4. a kind of electric quantity collector according to claim 1, it is characterized in that, described processor comprises: single-chip microcomputer and the A/D converter and the conversion control circuit that are connected with described single-chip microcomputer adaptation, conversion control circuit is connected in A/D converter the mould/number conversion of data is controlled.
5. a kind of electric quantity collector according to claim 4, is characterized in that, described sampling unit comprises:
Switching value input circuit for switching value sample of signal;
Simulated measurement input circuit for analog signals sampling; And
The electric signal finishing circuit being connected with simulated measurement input circuit with switching value input circuit, for converting tested electric quantity signal to the electric quantity signal that meets described A/D converter range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010191110.2A CN102044136B (en) | 2010-05-28 | 2010-05-28 | Power collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010191110.2A CN102044136B (en) | 2010-05-28 | 2010-05-28 | Power collection device |
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| CN102044136A CN102044136A (en) | 2011-05-04 |
| CN102044136B true CN102044136B (en) | 2014-04-16 |
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| CN201010191110.2A Active CN102044136B (en) | 2010-05-28 | 2010-05-28 | Power collection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103280006B (en) * | 2013-04-26 | 2016-08-31 | 上海纳恩汽车技术有限公司 | Intelligent key detecting system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2773817Y (en) * | 2004-11-10 | 2006-04-19 | 北京天力展业科技发展有限公司 | Power line contact temperature monitor system |
| CN200983092Y (en) * | 2006-11-09 | 2007-11-28 | 天津理工大学 | Data collection and processing device of DSP-based excitation controller |
| CN201159937Y (en) * | 2008-02-22 | 2008-12-03 | 辽宁省电力有限公司鞍山供电公司 | Non-line voltage testing device for accumulators |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2465192Y (en) * | 2001-02-12 | 2001-12-12 | 孙青� | Intelligent electricity quantity collector |
| JP5574986B2 (en) * | 2008-03-07 | 2014-08-20 | コーニンクレッカ フィリップス エヌ ヴェ | Method for driving a switch between a device and a power supply |
| CN201689537U (en) * | 2010-05-28 | 2010-12-29 | 珠海理想科技有限公司 | Electric quantity collecting device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2773817Y (en) * | 2004-11-10 | 2006-04-19 | 北京天力展业科技发展有限公司 | Power line contact temperature monitor system |
| CN200983092Y (en) * | 2006-11-09 | 2007-11-28 | 天津理工大学 | Data collection and processing device of DSP-based excitation controller |
| CN201159937Y (en) * | 2008-02-22 | 2008-12-03 | 辽宁省电力有限公司鞍山供电公司 | Non-line voltage testing device for accumulators |
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