CN216819826U - Relay protection instrument input device based on time delay collection - Google Patents
Relay protection instrument input device based on time delay collection Download PDFInfo
- Publication number
- CN216819826U CN216819826U CN202123130923.3U CN202123130923U CN216819826U CN 216819826 U CN216819826 U CN 216819826U CN 202123130923 U CN202123130923 U CN 202123130923U CN 216819826 U CN216819826 U CN 216819826U
- Authority
- CN
- China
- Prior art keywords
- delay
- unit
- module
- input
- signal
- 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.)
- Active
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a relay protection instrument input device based on time delay collection, which comprises a multi-path AD collection module and a plurality of time delay collection channels; each path of delay acquisition channel comprises a signal input module, a signal conditioning module and a delay processing module; the input of signal input module receives external signal, and signal input module's output is connected with signal conditioning module, signal conditioning module's output with time delay processing module connects, time delay processing module's output is connected with multichannel AD acquisition module, AD acquisition module is used for converting received analog signal into digital signal to external output. The utility model can adjust the signal delay in each channel and bring great convenience to data processing.
Description
Technical Field
The utility model relates to a relay protection instrument, in particular to a relay protection instrument input device based on time delay collection.
Background
The relay protection instrument is an important testing tool for ensuring the safe and reliable operation of the power system, and has a very obvious effect when a circuit system is detected; the input device is used as an important component of the relay protection instrument, and can process and convert external signals and send the external signals into the processing device of the relay protection instrument for data processing to obtain a required test result;
however, in the current situation, in the working process of the relay protection instrument, various different situations are often encountered, for example, when input data of the relay protection instrument comes from different devices or different components in the same device, there are often multiple paths of input data, and the multiple paths of data need to be AD-collected and then sent to a signal processing module of the relay protection instrument; however, the current input data cannot be adjusted in a delay way, which is not favorable for flexible processing of the data.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides the relay protection instrument input device based on time delay acquisition, which can adjust the signal delay in each channel and bring great convenience to data processing.
The purpose of the utility model is realized by the following technical scheme: a relay protection instrument input device based on time delay collection comprises a plurality of paths of AD collection modules and a plurality of time delay collection channels;
each path of the delay acquisition channel comprises a signal input module, a signal conditioning module and a delay processing module; the input of signal input module receives external signal, and signal input module's output is connected with signal conditioning module, signal conditioning module's output with time delay processing module connects, time delay processing module's output is connected with multichannel AD acquisition module, AD acquisition module is used for converting received analog signal into digital signal to external output.
Preferably, the digital signal externally output by the AD acquisition module is transmitted to a data processing module of the relay protection instrument for use by the data processing module; the number of the paths of the multi-path AD acquisition modules is the same as that of the delayed acquisition channels, and the paths and the delayed acquisition channels correspond to each other one by one.
Preferably, the signal input module includes a signal input port and an amplitude limiter, the signal input port is connected to an external signal, an input end of the amplitude limiter is connected to the signal input port, and an output end of the amplitude limiter is connected to the signal conditioning module.
Preferably, the signal conditioning module includes an adjustable gain amplifier, a first switch, a second switch, a filter bank and an adjustable phase shifter; the filter bank comprises a plurality of filters with different passbands;
the input end of the adjustable gain amplifier is connected with the output end of the amplitude limiter, and the output end of the adjustable gain amplifier is respectively connected with each filter through a selector switch; the output end of each filter is connected with an adjustable phase shifter through a second selector switch, and the output end of the adjustable phase shifter is connected with the delay processing module.
Preferably, the delay processing module includes a plurality of delay units, and the output end of the adjustable phase shifter is connected to the multiple AD acquisition modules sequentially through each delay unit.
The delay unit comprises a unit input end, a single-pole double-throw switch, a reference state channel, a delay state channel and a unit output end;
the moving end of the single-pole double-throw switch is connected with the input end of the unit, the first fixed end of the single-pole double-throw switch is connected with the input end of the reference state path, the second fixed end of the single-pole double-throw switch is connected with the input end of the delay state path, and the output ends of the reference state path and the delay state path are both connected to the output end of the unit;
for the first delay unit, the unit input end of the first delay unit is connected with the output end of the adjustable phase shifter, and the unit output end of the first delay unit is connected with the unit input end of the second delay unit;
for the second delay unit, which refers to any one of the last but one delay unit, the unit input end is connected with the unit output end of the last delay unit, and the unit output end is connected with the unit input end of the next delay unit;
for the last delay unit, the unit input end is connected with the unit output end of the last delay unit, and the unit output end is connected with the AD conversion module.
The reference state channel comprises a first reference state transmission line, one end of the first reference state transmission line is used as the input end of the reference state channel and connected with the first fixed end of the single-pole double-throw switch, and the other end of the first reference state transmission line is connected with the unit output end of the delay unit.
The delay state path comprises a second reference state transmission line and a delay line; one end of the second reference state transmission line is connected with one end of the delay line, the other end of the second reference state transmission line is used as the input end of the delay state access and the second fixed end of the single-pole double-throw switch, and the other end of the delay line is used as the output end of the delay state access and is connected with the unit output end of the delay unit.
Preferably, the first reference state transmission line and the second reference state transmission line are identical transmission lines. In any of the delay processing modules, the delay lines of the delay units have the same or different delays.
The utility model has the beneficial effects that: the utility model can adjust the signal delay in each channel, and keep time synchronization or have larger time delay for each channel according to different conditions, thereby having very high signal input flexibility and bringing great convenience to data processing.
Drawings
FIG. 1 is a schematic diagram of the principles of the present invention;
fig. 2 is a schematic diagram of a delay module.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1, a relay protection instrument input device based on delay collection includes a plurality of paths of AD collection modules and a plurality of delay collection channels;
each path of the delay acquisition channel comprises a signal input module, a signal conditioning module and a delay processing module; the input of signal input module receives external signal, and signal input module's output is connected with signal conditioning module, signal conditioning module's output with time delay processing module connects, time delay processing module's output is connected with multichannel AD acquisition module, AD acquisition module is used for converting received analog signal into digital signal to external output.
In the embodiment of the application, the digital signal externally output by the AD acquisition module is transmitted to a data processing module of the relay protection instrument for the data processing module to use; the number of the paths of the multi-path AD acquisition modules is the same as that of the delayed acquisition channels, and the paths and the delayed acquisition channels correspond to each other one by one. The signal input module comprises a signal input port and an amplitude limiter, the signal input port is connected with an external signal, the input end of the amplitude limiter is connected with the signal input port, and the output end of the amplitude limiter is connected with the signal conditioning module.
In an embodiment of the present application, the signal conditioning module includes an adjustable gain amplifier, a first switch, a second switch, a filter bank, and an adjustable phase shifter; the filter bank comprises a plurality of filters with different passbands;
the input end of the adjustable gain amplifier is connected with the output end of the amplitude limiter, and the output end of the adjustable gain amplifier is respectively connected with each filter through a selector switch; the output end of each filter is connected with an adjustable phase shifter through a second selector switch, and the output end of the adjustable phase shifter is connected with the delay processing module.
By selecting filters of different passbands, the frequency of the input signal can be controlled.
As shown in fig. 2, in the embodiment of the present application, the delay processing module includes a plurality of delay units, and an output end of the adjustable phase shifter is connected to the multiple AD acquisition modules sequentially through each delay unit.
The delay unit comprises a unit input end, a single-pole double-throw switch, a reference state channel, a delay state channel and a unit output end;
the moving end of the single-pole double-throw switch is connected with the input end of the unit, the first fixed end of the single-pole double-throw switch is connected with the input end of the reference state path, the second fixed end of the single-pole double-throw switch is connected with the input end of the delay state path, and the output ends of the reference state path and the delay state path are both connected to the output end of the unit;
for the first delay unit, the unit input end of the first delay unit is connected with the output end of the adjustable phase shifter, and the unit output end of the first delay unit is connected with the unit input end of the second delay unit;
for the second delay unit, which refers to any one of the last but one delay unit, the unit input end is connected with the unit output end of the last delay unit, and the unit output end is connected with the unit input end of the next delay unit;
for the last delay unit, the unit input end is connected with the unit output end of the last delay unit, and the unit output end is connected with the AD conversion module.
The reference state channel comprises a first reference state transmission line, one end of the first reference state transmission line is used as the input end of the reference state channel and connected with the first fixed end of the single-pole double-throw switch, and the other end of the first reference state transmission line is connected with the unit output end of the delay unit.
The delay state path comprises a second reference state transmission line and a delay line; one end of the second reference state transmission line is connected with one end of the delay line, the other end of the second reference state transmission line is used as the input end of the delay state access and the second fixed end of the single-pole double-throw switch, and the other end of the delay line is used as the output end of the delay state access and is connected with the unit output end of the delay unit.
In the embodiment of the present application, the first reference transmission line and the second reference transmission line are identical transmission lines, which can ensure that the actual delay is determined only by the delay line. In any one of the delay processing modules, the delay lines of the delay units have the same or different delays, and when the delay lines have the same delay, the final delay (the delay of each multiplied by the number of the delay state paths) is determined by controlling the number of the delay state paths to pass; when each delay line has different delays, the delay is accurately controlled by the combination of delay state paths, for example, the delay unit of a base is xs, and the required delay can be obtained by different delay line combinations by setting the delays of the delay lines to be x/2, x/4, x/8, x/16, x/32, x, 2x, 4x and the like in different delay units.
Considering that signal delay or synchronization requirements are different under different conditions, for example, when a relay protection instrument is used for testing different components in the same device and signal input is performed through each channel, time synchronization of each channel is often required to be maintained, but time synchronization is difficult to achieve due to differences of the components in the application, signal delay of each channel can be adjusted by gating a reference state path or a delay state path through each delay unit in a delay processing module in different channels, so that delay caused by differences of the components is compensated, and input of each channel is kept synchronous; when the relay protection instrument is used for testing different devices and different test signals are input through each channel, in order to process the signals of each device in time in sequence, the time delay of each channel piece can be increased by adjusting the time delay processing module, so that the processing module can process the received data in sequence, and the processing is more convenient and flexible.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a keep appearance input device with continuing based on time delay is gathered which characterized in that: the system comprises a plurality of AD acquisition modules and a plurality of delay acquisition channels;
each path of the delay acquisition channel comprises a signal input module, a signal conditioning module and a delay processing module; the input of signal input module receives external signal, and signal input module's output is connected with signal conditioning module, signal conditioning module's output with time delay processing module connects, time delay processing module's output is connected with multichannel AD acquisition module, AD acquisition module is used for converting received analog signal into digital signal to external output.
2. The relay protection instrument input device based on time delay collection according to claim 1, characterized in that: and the AD acquisition module transmits the externally output digital signals to a data processing module of the relay protection instrument for the data processing module to use.
3. The relay protection instrument input device based on time delay collection according to claim 1, characterized in that: the number of the paths of the multi-path AD acquisition modules is the same as that of the delayed acquisition channels, and the paths and the delayed acquisition channels correspond to each other one by one.
4. The relay protection instrument input device based on time delay collection according to claim 1, characterized in that: the signal input module comprises a signal input port and an amplitude limiter, the signal input port is connected with an external signal, the input end of the amplitude limiter is connected with the signal input port, and the output end of the amplitude limiter is connected with the signal conditioning module.
5. The relay protection instrument input device based on time delay collection according to claim 4, characterized in that: the signal conditioning module comprises an adjustable gain amplifier, a first change-over switch, a second change-over switch, a filter bank and an adjustable phase shifter; the filter bank comprises a plurality of filters with different passbands;
the input end of the adjustable gain amplifier is connected with the output end of the amplitude limiter, and the output end of the adjustable gain amplifier is respectively connected with each filter through a selector switch; the output end of each filter is connected with an adjustable phase shifter through a second selector switch, and the output end of the adjustable phase shifter is connected with the delay processing module.
6. The relay protection instrument input device based on time delay collection according to claim 5, characterized in that: the time delay processing module comprises a plurality of time delay units, and the output end of the adjustable phase shifter is connected with the multi-path AD acquisition module sequentially through each time delay unit.
7. The relay protection instrument input device based on time delay collection according to claim 6, characterized in that: the delay unit comprises a unit input end, a single-pole double-throw switch, a reference state channel, a delay state channel and a unit output end;
the moving end of the single-pole double-throw switch is connected with the input end of the unit, the first fixed end of the single-pole double-throw switch is connected with the input end of the reference state path, the second fixed end of the single-pole double-throw switch is connected with the input end of the delay state path, and the output ends of the reference state path and the delay state path are both connected to the output end of the unit;
for the first delay unit, the unit input end of the first delay unit is connected with the output end of the adjustable phase shifter, and the unit output end of the first delay unit is connected with the unit input end of the second delay unit;
for the second delay unit, which refers to any one of the last but one delay unit, the unit input end is connected with the unit output end of the last delay unit, and the unit output end is connected with the unit input end of the next delay unit;
for the last delay unit, the unit input end is connected with the unit output end of the last delay unit, and the unit output end is connected with the AD conversion module.
8. The relay protection instrument input device based on the time delay collection is characterized in that: the reference state channel comprises a first reference state transmission line, one end of the first reference state transmission line is used as the input end of the reference state channel and connected with the first fixed end of the single-pole double-throw switch, and the other end of the first reference state transmission line is connected with the unit output end of the delay unit.
9. The relay protection instrument input device based on the time delay collection is characterized in that: the delay state path comprises a second reference state transmission line and a delay line; one end of the second reference state transmission line is connected with one end of the delay line, the other end of the second reference state transmission line is used as the input end of the delay state access and the second fixed end of the single-pole double-throw switch, and the other end of the delay line is used as the output end of the delay state access and is connected with the unit output end of the delay unit.
10. The relay protection instrument input device based on the time delay collection is characterized in that: the first reference state transmission line and the second reference state transmission line are completely the same transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123130923.3U CN216819826U (en) | 2021-12-14 | 2021-12-14 | Relay protection instrument input device based on time delay collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123130923.3U CN216819826U (en) | 2021-12-14 | 2021-12-14 | Relay protection instrument input device based on time delay collection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216819826U true CN216819826U (en) | 2022-06-24 |
Family
ID=82053646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123130923.3U Active CN216819826U (en) | 2021-12-14 | 2021-12-14 | Relay protection instrument input device based on time delay collection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216819826U (en) |
-
2021
- 2021-12-14 CN CN202123130923.3U patent/CN216819826U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8477056B2 (en) | Method, system, and apparatus for interpolating an output of an analog-to-digital converter | |
| US7395060B2 (en) | Signal testing system | |
| CN111736517A (en) | Synchronous acquisition and processing card system based on multichannel ADC and FPGA | |
| CN102988048B (en) | Magnetic resonance fiber spectrometer and RF Receiving Device thereof | |
| CN110808748A (en) | High-power self-interference analog domain eliminating device | |
| CN111025240A (en) | Multi-channel radar radio frequency signal digital receiving system | |
| CN216819826U (en) | Relay protection instrument input device based on time delay collection | |
| US8842986B2 (en) | Circuit and method for controlling multi-channel power | |
| CN103812576B (en) | Adaptive Anti-jamming antenna channel integrated system | |
| CN111585606B (en) | Coherent FFH/DS mixed spread spectrum system | |
| CN103036840A (en) | Communication method and communication system both based on efficient crest factor reduction (CFR) processing | |
| CN215818060U (en) | Frequency conversion device for broadband | |
| CN116208282A (en) | Multi-channel DDC synchronous acquisition output system of array receiver and implementation method | |
| CN115603749A (en) | Time delay sampling method and device for broadband radio frequency signal | |
| CN112198492B (en) | Method for generating real-time on-line reconstruction waveform by array radar multichannel waveform | |
| CN212413151U (en) | Under-sampling device for high-speed frequency hopping communication | |
| CN104779969A (en) | Full duplex system with high dynamic receiver and use method thereof | |
| CN111464280B (en) | Multipath signal processing system, method and device | |
| CN113281791A (en) | Array navigation signal simulator based on channel simulation | |
| CN204349985U (en) | A kind of receiver based on Multiple Input Multiple Output | |
| CN1795636B (en) | Phase tracking for received signals using adaptive interpolation | |
| EP0977369A2 (en) | Sampling means for use with rake receiver | |
| CN219181529U (en) | L frequency channel signal receiving and transmitting equipment | |
| CN114915305B (en) | Dynamic reconfigurable receiving device and method | |
| CN219087140U (en) | Reconfigurable test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |