CN208622093U - A kind of remote signal module for the input of distribution network terminal state quantity data - Google Patents
A kind of remote signal module for the input of distribution network terminal state quantity data Download PDFInfo
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- CN208622093U CN208622093U CN201821277122.5U CN201821277122U CN208622093U CN 208622093 U CN208622093 U CN 208622093U CN 201821277122 U CN201821277122 U CN 201821277122U CN 208622093 U CN208622093 U CN 208622093U
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Abstract
The utility model relates to power transmission technology fields, propose a kind of remote signal module for the input of distribution network terminal state quantity data, including remote signalling input terminal, multiple anti-clutter circuits, data chip 74HC165, the anti-clutter circuit includes the anti-high-frequency interferencing circuit of magnetic bead, two-stage low-pass wave circuit, protect circuit and light-coupled isolation conversion circuit, after external multi-channel analog quantity of state passes through the input of remote signalling input terminal respectively, high-frequency interferencing signal is filtered out through the anti-high-frequency interferencing circuit of magnetic bead respectively, it is input to two-stage low-pass wave circuit and carries out low-pass filtering, then after protection circuit carries out partial pressure protection, analog-to-digital conversion is carried out through light-coupled isolation conversion circuit again, form multidiameter delay digital signal, after data chip 74HC165 is converted into serial data, it is output to the port I/O of CPU core core module.The utility model port resource that CPU is utilized effective and reasonable on the basis of meeting transmission rate.
Description
Technical field
The utility model relates to power transmission technology fields, and in particular to one kind is inputted for distribution network terminal state quantity data
Remote signal module.
Background technique
Distribution automation terminal is important composition one ring of State Grid's system to intelligent development, be can provide more steady
Fixed, safe and intelligent network system and efficient, economic, environmental protection electric power energy.Remote signal module is the state of distribution network terminal again
Various state quantity datas, can be transmitted to core cpu unit in real time to carry out analysis state, quantity of state by the component part for measuring detection
Data include switch coincidence, switch quartile, cutter position, energy storing of switch, a distant place/on the spot, various fault detector access states
Amount, various equipment failure states, Anomaly information quantity etc. form sequence of events recording by CPU element and are distally led by Ethernet
It stands transmission, completes the transmission of remote signalling message each quantity of state and remote signalling all the way is just needed to transmit, data mode quantity is big, occupies
CPU I/O just it is more, if as soon as per all the way occupy the port I/O, then cause cpu resource utilize it is unreasonable, if necessary
Remote signalling amount it is very much, the port I/O of cpu chip will be taken, if being further added by cpu chip, not only will cause the waste of resource,
Also it is unfavorable for the exploitation design of circuit board.
Utility model content
For the actual demand for adapting to field of power transmission, the utility model overcomes the shortcomings of the prior art, to be solved
Certainly the technical issues of is to provide a kind of remote signal module for the input of distribution network terminal state quantity data, and the port I/O for reducing CPU accounts for
Dosage.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows: one kind is used for distribution network terminal state
Measure the remote signal module of data input, including remote signalling input terminal, multiple anti-clutter circuits, data chip 74HC165 is described anti-dry
Disturbing circuit includes the anti-high-frequency interferencing circuit of magnetic bead, two-stage low-pass wave circuit, protection circuit and light-coupled isolation conversion circuit, outside
After multi-channel analog quantity of state passes through the input of remote signalling input terminal respectively, High-frequency Interference is filtered out through the anti-high-frequency interferencing circuit of magnetic bead respectively
Signal is input to two-stage low-pass wave circuit and carries out low-pass filtering, then after protection circuit carries out partial pressure protection, then through optocoupler
Conversion circuit is isolated and carries out analog-to-digital conversion, forms multidiameter delay digital signal, the multidiameter delay digital signal is input to data
It is defeated after parallel digital signal is converted serial data by data chip 74HC165 after the parallel input terminal of chip 74HC165
The port I/O of CPU core core module is arrived out.
The remote signal module includes 16 anti-clutter circuits and 2 data chip 74HC165, wherein 8 anti-tampering electricity
The output end on road is connect with pin D0~D7 of a data chip 74HC165 respectively, the output end of another 8 anti-clutter circuits
It is connect respectively with pin D0~D7 of another data chip 74HC165.
The anti-high-frequency interferencing circuit of magnetic bead includes magnetic bead CZ, and the two-stage low-pass wave circuit includes resistance R1, capacitor
C1, resistance R2 and capacitor C2, the protection circuit include resistance R3 and diode D17, and the light-coupled isolation conversion circuit includes
Optocoupler Q1, resistance R4 and resistance R5, the input terminal of the magnetic bead CZ1 are connect with external analog quantity of state, the output end of magnetic bead CZ1
It is connect with one end of resistance R1, the other end of resistance R1 connects the cathode of DC voltage, resistance R2 and capacitor C36 after capacitor C1
The both ends of capacitor C1 are connected in parallel on after series connection, resistance R3 is connected in parallel on the both ends of capacitor C36, and diode D17 reversal connection is connected in parallel on electricity
The both ends of R3 are hindered, optocoupler Q1 inputs the cathode of cathode connecting diode D17, the anode of input cathode connection diode D17, output
Anode connection DC voltage electrode, output negative pole are grounded after resistance R4, and output negative pole connects core cpu mould also after resistance R5
The port I/O of block.
The model BLM31PG500SN1L, the resistance R1, resistance R2, resistance R3, resistance R4, resistance R5 of the magnetic bead
Resistance value be respectively as follows: 1K Ω, 1K Ω, 1K Ω, 4.71K Ω, 4.7K Ω, the capacitor C1, capacitor C36 capacitance be respectively
10pf, 10pf, the model PC817 of the optocoupler Q1.
The utility model has the advantages that compared with prior art
1, turn SOD serial output data chip 74HC165 by inputting parallel, will merge per remote signalling state quantity data all the way
CPU module is sent at serial data, a piece of 74HC165 can convert 8 parallel datas to a 8 Bits Serial data, and one piece
Remote signalling plate has 16 remote signalling quantity of states, needs 2 74HC165, effective and reasonable on the basis of meeting transmission rate that CPU is utilized
Port resource；Meet the transmission rate of distribution net equipment data, and the effective and reasonable port resource that CPU is utilized, also saves
The design space for saving circuit board, is equivalent to integrated raising, economic and practical is strong.
2, the utility model filters high-frequency interferencing signal by the magnetic bead of prime, using the low-pass filtering electricity of second level
Road filters off the interference signal of low frequency, analog signal is converted into digital signal finally by optocoupler and low and high level, to reach
The isolation of digital-to-analogue, the effective solution signal interference of input state amount.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of structure of remote signal module for the input of distribution network terminal state quantity data show
It is intended to；
Fig. 2 is the schematic diagram of remote signalling input terminal in the utility model embodiment；
Fig. 3 is the circuit connection diagram of anti-clutter circuit in the utility model embodiment；
Fig. 4 is the pin connection figure of data chip 74HC165 in the utility model embodiment；
Fig. 5 is the pin connection figure of CPU core core module in the utility model embodiment.
Specific embodiment
It is right below in conjunction with specific embodiments and the drawings to keep the technical solution of the utility model and advantage clearer
The technical solution of the utility model is clearly and completely described, it is clear that described embodiment is one of the utility model
Divide embodiment, instead of all the embodiments；Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.
As shown in Figure 1, being proposed for the utility model embodiment a kind of for the distant of distribution network terminal state quantity data input
Letter module, including remote signalling input terminal, 16 anti-clutter circuits, 2 data chip 74HC165, each anti-clutter circuit are equal
Including the anti-high-frequency interferencing circuit of magnetic bead, two-stage low-pass wave circuit, protection circuit and light-coupled isolation conversion circuit, such as the institute of Fig. 1~4
Show, after 16 tunnel emulation mode amount INPUT1~INPUT16 of outside are inputted respectively by remote signalling input terminal, respectively through the anti-height of magnetic bead
Frequency interference circuit filters out high-frequency interferencing signal, is input to two-stage low-pass wave circuit and carries out low-pass filtering, then through protecting circuit
After carrying out partial pressure protection, then through light-coupled isolation conversion circuit carry out analog-to-digital conversion, formed 16 road parallel digital signal YX1~
YX16, wherein parallel digital signal YX1~YX8 is separately input to pin D0~D7 of first data chip 74HC165, and
Row digital signal YX9~YX16 is separately input to pin D0~D7 of second data chip 74HC165, through 2 data chips
After 74HC165 can convert two-way serial data for 16 road parallel digital signals, from the respective pin Q7 output of two chips
To wherein 2 ports I/O of CPU core core module.The pin connection type of a data chip 74HC165 is illustrated only in Fig. 4,
The connection type of another data chip 74HC165 is identical as Fig. 4, and what only corresponding pin D0~D7 was separately connected is number
Signal YX9~YX16.
Further, as shown in figure 3, being the circuit connection diagram of one of anti-clutter circuit, other anti-clutter circuits
Structure is all the same with it.The anti-high-frequency interferencing circuit of magnetic bead includes magnetic bead CZ, and the two-stage low-pass wave circuit includes resistance
R1, capacitor C1, resistance R2 and capacitor C2, the protection circuit include resistance R3 and diode D17, the light-coupled isolation conversion electricity
Road includes optocoupler Q1, resistance R4 and resistance R5, and the input terminal of the magnetic bead CZ1 is connect with external analog quantity of state, magnetic bead CZ1's
Output end is connect with one end of resistance R1, and the other end of resistance R1 connects the cathode of DC voltage after capacitor C1, resistance R2 with
Capacitor C36 is connected in parallel on the both ends of capacitor C1 after being connected in series, resistance R3 is connected in parallel on the both ends of capacitor C36, and diode D17 is reversely connected simultaneously
The both ends of resistance R3 are associated in, optocoupler Q1 inputs the cathode of cathode connecting diode D17, and input cathode connection diode D17 is just
Pole, output cathode connect DC voltage electrode, and output negative pole is grounded after resistance R4, and output negative pole also connects after resistance R5
The port I/O of CPU core core module.
Wherein, the model BLM31PG500SN1L, the resistance R1 of the magnetic bead, resistance R2, resistance R3, resistance R4,
The resistance value of resistance R5 is respectively as follows: the capacitance point of 1K Ω, 1K Ω, 1K Ω, 4.71K Ω, 4.7K Ω, the capacitor C1, capacitor C36
Not Wei 10pf, 10pf, the model PC817 of the optocoupler Q1.
The utility model turns SOD serial output data chip 74HC165 by input parallel, will be per remote signalling quantity of state all the way
Data are merged into serial data and are sent to CPU module, and a piece of 74HC165 can convert 8 parallel datas to a 8 bit string line numbers
According to one block of remote signalling plate has 16 remote signalling quantity of states, needs 2 74HC165, effective and reasonable benefit on the basis of meeting transmission rate
With the port resource of CPU；Meet the transmission rate of distribution net equipment data, and the effective and reasonable port money that CPU is utilized
Source also saves the design space of circuit board, is equivalent to integrated raising, economic and practical is strong.In addition, before the utility model passes through
The magnetic bead of grade filters high-frequency interferencing signal, the interference signal of low frequency is filtered off using the low-pass filter circuit of second level, finally
Analog signal is converted into digital signal by optocoupler and low and high level, to reach the isolation of digital-to-analogue, effective solution is defeated
Enter the signal interference of quantity of state.
The embodiments of the utility model have been described in detail above with reference to the accompanying drawings, but the utility model is not limited to
Embodiment is stated, within the knowledge of a person skilled in the art, the utility model aims can also not departed from
Under the premise of various changes can be made.
Claims (4)
1. a kind of remote signal module for the input of distribution network terminal state quantity data, which is characterized in that more including remote signalling input terminal
A anti-clutter circuit, data chip 74HC165, the anti-clutter circuit include the anti-high-frequency interferencing circuit of magnetic bead, two-stage low-pass
Wave circuit, protection circuit and light-coupled isolation conversion circuit, external multi-channel analog quantity of state pass through remote signalling input terminal respectively and input
Afterwards, high-frequency interferencing signal is filtered out through the anti-high-frequency interferencing circuit of magnetic bead respectively, is input to two-stage low-pass wave circuit and carries out low pass filtered
Wave then after protection circuit carries out partial pressure protection, then through light-coupled isolation conversion circuit progress analog-to-digital conversion, forms multidiameter delay
Digital signal, after the multidiameter delay digital signal is input to the parallel input terminal of data chip 74HC165, through data chip
After parallel digital signal is converted serial data by 74HC165, it is output to the port I/O of CPU core core module.
2. a kind of remote signal module for the input of distribution network terminal state quantity data according to claim 1, which is characterized in that
The remote signal module includes 16 anti-clutter circuits and 2 data chip 74HC165, wherein the output of 8 anti-clutter circuits
End connect respectively with pin D0~D7 of a data chip 74HC165, the output end of another 8 anti-clutter circuits respectively with it is another
Pin D0~D7 connection of a data chip 74HC165.
3. a kind of remote signal module for the input of distribution network terminal state quantity data according to claim 1, which is characterized in that
The anti-high-frequency interferencing circuit of magnetic bead includes magnetic bead CZ, and the two-stage low-pass wave circuit includes resistance R1, capacitor C1, resistance R2
With capacitor C2, the protection circuit includes resistance R3 and diode D17, and the light-coupled isolation conversion circuit includes optocoupler Q1, electricity
Resistance R4 and resistance R5, the input terminal of the magnetic bead CZ1 are connect with external analog quantity of state, the output end and resistance R1 of magnetic bead CZ1
One end connection, the other end of resistance R1 connect the cathode of DC voltage after capacitor C1, resistance R2 and capacitor C36 series connection
It is connected in parallel on the both ends of capacitor C1 afterwards, resistance R3 is connected in parallel on the both ends of capacitor C36, and diode D17 reversal connection is connected in parallel on the two of resistance R3
End, optocoupler Q1 input the cathode of cathode connecting diode D17, the anode of input cathode connection diode D17, output cathode connection
DC voltage electrode, output negative pole are grounded after resistance R4, and output negative pole connects the I/O of CPU core core module also after resistance R5
Port.
4. a kind of remote signal module for the input of distribution network terminal state quantity data according to claim 1, which is characterized in that
The resistance value point of the model BLM31PG500SN1L, the resistance R1 of the magnetic bead, resistance R2, resistance R3, resistance R4, resistance R5
Not are as follows: 1K Ω, 1K Ω, 1K Ω, 4.71K Ω, 4.7K Ω, the capacitor C1, capacitor C36 capacitance be respectively 10pf, 10pf,
The model PC817 of the optocoupler Q1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821277122.5U CN208622093U (en) | 2018-08-09 | 2018-08-09 | A kind of remote signal module for the input of distribution network terminal state quantity data |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821277122.5U CN208622093U (en) | 2018-08-09 | 2018-08-09 | A kind of remote signal module for the input of distribution network terminal state quantity data |
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| CN208622093U true CN208622093U (en) | 2019-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110750127A (en) * | 2019-11-15 | 2020-02-04 | 积成电子股份有限公司 | Alternating current-direct current input voltage self-adaptation remote signaling circuit for power distribution device |
-
2018
- 2018-08-09 CN CN201821277122.5U patent/CN208622093U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110750127A (en) * | 2019-11-15 | 2020-02-04 | 积成电子股份有限公司 | Alternating current-direct current input voltage self-adaptation remote signaling circuit for power distribution device |
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