CN201393043Y - Switching value input/output interface circuits for relay protective device - Google Patents
Switching value input/output interface circuits for relay protective device Download PDFInfo
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- CN201393043Y CN201393043Y CN200920032278U CN200920032278U CN201393043Y CN 201393043 Y CN201393043 Y CN 201393043Y CN 200920032278 U CN200920032278 U CN 200920032278U CN 200920032278 U CN200920032278 U CN 200920032278U CN 201393043 Y CN201393043 Y CN 201393043Y
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- switching value
- interface circuit
- output interface
- value input
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Abstract
The utility model discloses a switching value input/output interface circuits for relay protective device, which comprises a switching value input interface circuit and a switching value output interface circuit which are connected with a central controller; the switching value input interface circuit and the switching value output interface circuit are connected with the central controller in a serial bus way. The switching value input/output interface circuits for relay protective device has reasonable design and is convenient to use and operate, can effectively resolves the problems of complex hardware and poor bus anti-jamming capability and the like for the existing parallel bus way.
Description
Technical field
The utility model relates to the relay protection of power system technical field, especially relates to a kind of protective relaying device switching value input/output interface circuit.
Background technology
When fault has taken place and has jeopardized safe operation of power system in the force device in the electric power system (as generator, circuit etc.) or electric power system itself; need a kind of can in time sending warning signal to the operation operator on duty; perhaps directly send trip signal to stop the automation measure and the equipment of these incident development to the circuit breaker of being controlled; and realize the complete set of equipments of this automation measure, generally be commonly referred to as protective relaying device.The application of above-mentioned protective relaying device in the electric power protection industry more and more widely and indispensable, especially for transformer station.Because transformer station is a important step in the electric power system, is undertaking the task that voltage transitions and electric weight are redistributed, the safety and the economical operation of electrical network played important effect.In recent years, along with the increase of power system capacity and the increase of electrical network complexity, the safe and reliable operation of transformer station is had higher requirement.
Switching value input/output signal in the traditional relay protection device generally all adopts with the parallel bus mode of central processing unit (CPU) and carries out the input and output processing, thereby exists problems such as hardware complexity, bus poor anti jamming capability.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art; a kind of protective relaying device switching value input/output interface circuit is provided; it is reasonable in design and use easy to operately, can effectively have problems such as the existing hardware complexity of parallel bus mode, bus poor anti jamming capability now.
For solving the problems of the technologies described above; the technical solution adopted in the utility model is: a kind of protective relaying device switching value input/output interface circuit; comprise the switch value input interface circuit and the switching value output interface circuit that join with central controller, it is characterized in that: all be connected between described switch value input interface circuit and switching value output interface circuit and the central controller by the universal serial bus mode.
Described switch value input interface circuit comprises the switching value input signal drive circuit that has a plurality of switching value signal input ports, and is connected on the parallel commentaries on classics serial circuit between switching value input signal drive circuit and the central controller; Described switching value signal drive circuit, parallel commentaries on classics serial circuit and central controller join successively;
Described switching value output interface circuit comprises the transformation from serial to parallel circuit that joins successively with central controller, and the switching value output signal driver circuit that has a plurality of switching value signal output ports.
Described central controller is chip DSP F2808.
The quantity of described switching value signal input port is 16, and the quantity of described switching value signal output port is 12.
The utility model compared with prior art has the following advantages: 1, hardware is simple, wiring is few and it is easy to operate, economical and practical to use.2, reasonable in design; its design has 16 way switch amount signal input ports; wherein the collecting unit of 16 way switch amount input signals all can for source contact being arranged or not having source contact; indicate when needing customer order; in the 16 way switch amount signal input ports except that the part have specifically defined; all the other are opened can be defined by the user into amount, thereby reliable switching value foundation can be provided for the accurate control of this protective relaying device.The switching value signal output apparatus comprises five way switch amount output signals (comprising the user-defined switching value output signal of three tunnel alarm amounts and two-way) and seven dataway operation circuit controls amount output signals.In sum, the utility model is reasonable in design and use easy to operate, can effectively have problems such as the existing hardware complexity of parallel bus mode, bus poor anti jamming capability now, it adopts the mode of universal serial bus to reach the purpose that central controller is the input and output of CPU access switch amount, hardware circuit is simple, connecting line quantity is few between integrated circuit board, simultaneously by the high frequency time access hardware and cooperate distinctive filtering software finally to reach very strong antijamming capability.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Description of reference numerals:
The 1-central controller; 2-switching value input signal drives the parallel serial circuit that changes of 3-; Circuit;
4-transformation from serial to parallel circuit; 5-switching value output signal driver circuit.
Embodiment
As shown in Figure 2, the utility model comprises switch value input interface circuit and the switching value output interface circuit that joins with central controller 1, all is connected by the universal serial bus mode between described switch value input interface circuit and switching value output interface circuit and the central controller 1.
Wherein, described switch value input interface circuit comprises the switching value input signal drive circuit 2 that has a plurality of switching value signal input ports, and is connected on the parallel commentaries on classics serial circuit 3 between switching value input signal drive circuit 2 and the central controller 1.Described switching value signal drive circuit 2, parallel commentaries on classics serial circuit 3 and central controller 1 join successively.Described switching value output interface circuit comprises the transformation from serial to parallel circuit 4 that joins successively with central controller 1, and the switching value output signal driver circuit 5 that has a plurality of switching value signal output ports.
In the present embodiment, described central controller 1 is chip DSP F2808.The quantity of described switching value signal input port is 16 (being IN1-IN16), the quantity of described switching value signal output port is 12, comprising five way switch amount output signals (i.e. three tunnel alarm amount XH1, XH2 and XH3 and two-way user-defined switching value output signal OUT1 and OUT2) and seven dataway operation circuit controls amount output signals (being K01-K07).
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection range of technical solutions of the utility model according to the utility model technical spirit.
Claims (4)
1. protective relaying device switching value input/output interface circuit; comprise the switch value input interface circuit and the switching value output interface circuit that join with central controller (1), it is characterized in that: all be connected between described switch value input interface circuit and switching value output interface circuit and the central controller (1) by the universal serial bus mode.
2. according to the described protective relaying device of claim 1 switching value input/output interface circuit, it is characterized in that: described switch value input interface circuit comprises the switching value input signal drive circuit (2) that has a plurality of switching value signal input ports, and is connected on the parallel commentaries on classics serial circuit (3) between switching value input signal drive circuit (2) and the central controller (1); Described switching value signal drive circuit (2), parallel commentaries on classics serial circuit (3) and central controller (1) join successively;
Described switching value output interface circuit comprises the transformation from serial to parallel circuit (4) that joins successively with central controller (1), and the switching value output signal driver circuit (5) that has a plurality of switching value signal output ports.
3. according to the described protective relaying device of claim 2 switching value input/output interface circuit, it is characterized in that: described central controller (1) is chip DSP F2808.
4. according to the described protective relaying device of claim 3 switching value input/output interface circuit, it is characterized in that: the quantity of described switching value signal input port is 16, and the quantity of described switching value signal output port is 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920032278U CN201393043Y (en) | 2009-03-20 | 2009-03-20 | Switching value input/output interface circuits for relay protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920032278U CN201393043Y (en) | 2009-03-20 | 2009-03-20 | Switching value input/output interface circuits for relay protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201393043Y true CN201393043Y (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920032278U Expired - Fee Related CN201393043Y (en) | 2009-03-20 | 2009-03-20 | Switching value input/output interface circuits for relay protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201393043Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592878A (en) * | 2013-11-19 | 2014-02-19 | 中国神华能源股份有限公司 | Device and method for transmitting multiple switching value signals in different systems |
| CN105700496A (en) * | 2016-01-19 | 2016-06-22 | 国家电网公司 | DO-point remote synchronous mapping and expanding system and method |
-
2009
- 2009-03-20 CN CN200920032278U patent/CN201393043Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592878A (en) * | 2013-11-19 | 2014-02-19 | 中国神华能源股份有限公司 | Device and method for transmitting multiple switching value signals in different systems |
| CN103592878B (en) * | 2013-11-19 | 2016-11-16 | 中国神华能源股份有限公司 | A kind of apparatus and method transmitting multiple on-off model in different system |
| CN105700496A (en) * | 2016-01-19 | 2016-06-22 | 国家电网公司 | DO-point remote synchronous mapping and expanding system and method |
| CN105700496B (en) * | 2016-01-19 | 2018-10-26 | 国家电网公司 | DO point remote synchronization mapped systems and method |
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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: 20100127 Termination date: 20130320 |