CN203117350U - Power line selection device based on DSP (digital signal processor) - Google Patents
Power line selection device based on DSP (digital signal processor) Download PDFInfo
- Publication number
- CN203117350U CN203117350U CN 201320129771 CN201320129771U CN203117350U CN 203117350 U CN203117350 U CN 203117350U CN 201320129771 CN201320129771 CN 201320129771 CN 201320129771 U CN201320129771 U CN 201320129771U CN 203117350 U CN203117350 U CN 203117350U
- Authority
- CN
- China
- Prior art keywords
- dsp
- line selection
- power line
- electric power
- apparatus based
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The utility model discloses a power line selection device based on DSP (digital signal processor), which is characterized by comprising a central processing unit, an intermittent small current generator, a simulation data collector, a data statistics process device, an operating panel and a transmission interface, wherein the operating panel is connected with a central processing unit, the data statistics process device and a compilation transducer are arranged in the central processing unit, the central processing unit is connected and controls the intermittent small current generator, the compilation transducer is connected with the simulation data collector, and the simulation data collector and the intermittent small current generator are connected on the transmission interface in parallel. The power line selection device based on the DSP can effectively solve the problem of interference by adopting the intermittent small current generator to intermittently supply power, comprehensively compares and analyses periodic signals by adopting digital signal processor (DSP), and can more accurately select lines for obstruction.
Description
Technical field
The utility model relates to a kind of electric insulation fault diagnosis technology field, is specifically related to a kind of low-current ground fault line selection field.
Background technology
When small current neutral grounding system has singlephase earth fault, the reason such as faint and trouble spot electric arc instability owing to fault current, the route selection of earth fault and location be difficulty relatively.For a long time, people do a lot of work, and have developed the multiple method of inspection and device, but the actual motion effect is unsatisfactory.Owing to lack reliable failure line selection means, power supply enterprise has to select faulty line with the method for manually drawing the road mostly.Manually draw the road can cause non-fault line power supply to interrupt in short-term, influence the normal operation of user power utilization equipment, this is a kind of huge disaster for the quality of power supply exigent today.And adopting existing line selection apparatus, method, adaptability is low, poor anti jamming capability.Therefore, study a kind of novel electric power line selection apparatus based on DSP problem for demanding urgently solving.
The utility model content
Defective at the prior art existence, the purpose of this utility model is to propose a kind of electric power line selection apparatus based on DSP, simple to operate, and be convenient for carrying, adaptability is strong, adopt the discontinuity current feedback circuit that the discontinuity power supply is provided, can break off relations the problem of interference effectively, and adopt digital signal processing (Digital Signal Processing is called for short DSP) to carry out comprehensive compare of analysis for the signal of stage, antijamming capability is strong, can more accurately carry out the obstacle route selection.
The technical solution of the utility model is: a kind of electric power line selection apparatus based on DSP, it is characterized in that: comprise central processing unit, the little current feedback circuit of discontinuity, analog data acquisition device, data statistics treatment facility, guidance panel and transmission interface, guidance panel connects central processing unit, the built-in data statistics treatment facility of central processing unit and compiling converter, central processing unit connects the little current feedback circuit of control discontinuity, the compiling converter connects the simulation data acquisition unit, and the little current feedback circuit of analog data acquisition device and discontinuity is connected in parallel on the transmission interface.
Preferably, also be provided with chronotron and timer on the little current feedback circuit of discontinuity.
Preferably, the little current feedback circuit of discontinuity is provided with current amplifier.
Preferably, a plurality of transmission interfaces are connected in parallel.
Preferably, be provided with electric energy storage device in the device.
Preferably, also be provided with communication interface on the device.
Preferably, communication interface is Ethernet interface or 3G signal transceiver.
Preferably, terminated line place also is provided with wave filter in the transmission interface.
Preferably, also be provided with the signal expander between analog data acquisition device and the transmission interface.
Preferably, also be provided with check device between the little current feedback circuit of discontinuity and the transmission interface.
Useful technique effect of the present utility model is:
1, realizes the coordinated operation of each parts by central processing unit.
2, the compiling converter is changed compiling for the virtual signal of whole collection, sends to central processing unit then, carries out data collection analysis.
3, the analog data acquisition device is the data acquisition system (DAS) of device, is made up of 16 precision A/D converters that exchange load module, filter circuit, multi-way switch and high reliability.The active low-pass filter that employing is made of RC network and operational amplifier.In RC network, introduce active device, can realize that transport function conjugate pole occurs at a left side, S territory half-plane, obtains good filtering characteristic.For complicacy and the time delay that does not increase device, exponent number is chosen unsuitable too high, selects the second-order low-pass filter circuit in the native system for use.
4, this device is simple to operate, and is convenient for carrying, and adaptability is strong.
5, this device adopts the discontinuity current feedback circuit that the discontinuity power supply is provided, can break off relations the problem of interference effectively, and adopt digital signal processing (Digital Signal Processing, abbreviation DSP) signal for stage carries out comprehensive compare of analysis, antijamming capability is strong, can more accurately carry out the obstacle route selection.
6, communication interface adopts ethernet controller to constitute embedded ethernet interface, perhaps adopts brand-new 3G signal transceiver to accept and transmits the 3G signal, is used for long-range shared information.
7, power supply, this line selection apparatus change alternating current 220V into work direct current: 24V through AC-DC and are the direct relay power supply of output; + 5V through behind the low-dropout linear voltage-regulating circuit for the power supply of LCD power conversion chip or through DC-DC linear voltage transducer be converted to+3.3V ,+1.9V and+power for devices such as DSP behind the 2.5V, + 12V is converted to ± 10V through DC-DC linear voltage transducer, use for amplifier, perhaps adopt electric energy storage device to carry out portable operation and use.
Description of drawings
Fig. 1 is that the utility model embodiment is based on the structured flowchart of the electric power line selection apparatus of DSP.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
A kind of electric power line selection apparatus based on DSP comprises central processing unit 1, the little current feedback circuit 2 of discontinuity, analog data acquisition device 3, data statistics treatment facility, guidance panel 4 and transmission interface 5, guidance panel 4 connects central processing unit 1, central processing unit 1 built-in data statistics treatment facility and compiling converter, central processing unit 1 connects the little current feedback circuit 2 of control discontinuity, the compiling converter connects simulation data acquisition unit 3, and the little current feedback circuit 2 of analog data acquisition device 3 and discontinuity is connected in parallel on the transmission interface.
The utility model also is, also is provided with chronotron and timer on the little current feedback circuit 2 of discontinuity.
The utility model is that also the little current feedback circuit 2 of discontinuity is provided with current amplifier.
The utility model is that also a plurality of transmission interfaces 5 are connected in parallel.
The utility model also is, is provided with electric energy storage device in the device.
The utility model also is, also is provided with communication interface on the device.
The utility model is that also communication interface is Ethernet interface or 3G signal transceiver.
The utility model is that also terminated line place also is provided with wave filter in the transmission interface 5.
The utility model also is, also is provided with the signal expander between analog data acquisition device 3 and the transmission interface 5.
The utility model also is, also is provided with check device between the little current feedback circuit of discontinuity and the transmission interface.
Fig. 1 is that the utility model embodiment is based on the structured flowchart of the electric power line selection apparatus of DSP, as shown in Figure 1, a kind of electric power line selection apparatus based on DSP comprises central processing unit 1, the little current feedback circuit 2 of discontinuity, analog data acquisition device 3, the data statistics treatment facility, guidance panel 4 and transmission interface 5, guidance panel 4 connects central processing unit 1, central processing unit 1 built-in data statistics treatment facility and compiling converter, central processing unit 1 connects the little current feedback circuit 2 of control discontinuity, the compiling converter connects simulation data acquisition unit 3, and the little current feedback circuit 2 of analog data acquisition device 3 and discontinuity is connected in parallel on the transmission interface.
The above only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model description to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (10)
1. electric power line selection apparatus based on DSP, it is characterized in that: comprise central processing unit, the little current feedback circuit of discontinuity, analog data acquisition device, data statistics treatment facility, guidance panel and transmission interface, guidance panel connects central processing unit, the built-in data statistics treatment facility of central processing unit and compiling converter, central processing unit connects the little current feedback circuit of control discontinuity, the compiling converter connects the simulation data acquisition unit, and the little current feedback circuit of analog data acquisition device and discontinuity is connected in parallel on the transmission interface.
2. a kind of electric power line selection apparatus based on DSP according to claim 1 is characterized in that: also be provided with chronotron and timer on the little current feedback circuit of discontinuity.
3. a kind of electric power line selection apparatus based on DSP according to claim 1, it is characterized in that: the little current feedback circuit of discontinuity is provided with current amplifier.
4. according to claim 1,2 or 3 described a kind of electric power line selection apparatus based on DSP, it is characterized in that: a plurality of transmission interfaces are connected in parallel.
5. according to claim 1,2 or 3 described a kind of electric power line selection apparatus based on DSP, it is characterized in that: be provided with electric energy storage device in the device.
6. according to claim 1,2 or 3 described a kind of electric power line selection apparatus based on DSP, it is characterized in that: also be provided with communication interface on the device.
7. a kind of electric power line selection apparatus based on DSP according to claim 6, it is characterized in that: communication interface is Ethernet interface or 3G signal transceiver.
8. according to claim 1,2 or 3 described a kind of electric power line selection apparatus based on DSP, it is characterized in that: terminated line place also is provided with wave filter in the transmission interface.
9. according to claim 1,2 or 3 described a kind of electric power line selection apparatus based on DSP, it is characterized in that: also be provided with the signal expander between analog data acquisition device and the transmission interface.
10. according to claim 1,2 or 3 described a kind of electric power line selection apparatus based on DSP, it is characterized in that: also be provided with check device between the little current feedback circuit of discontinuity and the transmission interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129771 CN203117350U (en) | 2013-03-21 | 2013-03-21 | Power line selection device based on DSP (digital signal processor) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129771 CN203117350U (en) | 2013-03-21 | 2013-03-21 | Power line selection device based on DSP (digital signal processor) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203117350U true CN203117350U (en) | 2013-08-07 |
Family
ID=48897685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320129771 Expired - Fee Related CN203117350U (en) | 2013-03-21 | 2013-03-21 | Power line selection device based on DSP (digital signal processor) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203117350U (en) |
-
2013
- 2013-03-21 CN CN 201320129771 patent/CN203117350U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210347811U (en) | New forms of energy car machine integration test system that charges | |
| CN203337722U (en) | Voltage and current collecting device of grid overhead transmission line | |
| CN204575733U (en) | A kind of high-tension cable sheath grounding current on-line monitoring system | |
| CN102937698B (en) | A kind of DC/DC converter single particle effect detection system and detection method | |
| CN204965718U (en) | Photovoltaic intelligent monitoring system | |
| CN202424727U (en) | Portable testing device of micropower wireless communication module | |
| CN103475247A (en) | Active and reactive dispatchable control device of distributed photovoltaic power station | |
| CN203117350U (en) | Power line selection device based on DSP (digital signal processor) | |
| CN205283260U (en) | Online monitored control system of power module based on cloud ware | |
| CN103533561A (en) | Communication quality detection device for GSM-R (global system of mobile communication for railways) | |
| CN203326724U (en) | Power distribution station terminal device for medium and low voltage power distribution network | |
| CN203054151U (en) | Small current grounding fault line selection device based on DSP | |
| CN103901261A (en) | System and method for conducting wireless measurement on overvoltage of electrical power system | |
| CN201860099U (en) | Low current grounding fault line selection device | |
| CN205610344U (en) | Smart power grids's wireless monitoring system | |
| CN203385836U (en) | Battery detection control system based on wireless transmission | |
| CN203674727U (en) | Photovoltaic inverter system with signal control | |
| CN203180276U (en) | Improved type power line | |
| CN206283517U (en) | The detection platform of intelligent MANET data terminal communication station | |
| CN206452184U (en) | Power information harvester and its system | |
| CN205120926U (en) | Marine load dropout protection device | |
| CN212392714U (en) | Power supply and distribution monitoring system | |
| CN201540347U (en) | DC earth fault detector | |
| CN204495953U (en) | Distribution line failure wireless location system | |
| CN204462825U (en) | A kind of energy consumption monitoring device and comprise the household electrical appliance energy consumption monitoring system of this device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140321 |