CN203827354U - Optical interface power supply control device for intelligent substation test equipment - Google Patents
Optical interface power supply control device for intelligent substation test equipment Download PDFInfo
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- CN203827354U CN203827354U CN201420210887.2U CN201420210887U CN203827354U CN 203827354 U CN203827354 U CN 203827354U CN 201420210887 U CN201420210887 U CN 201420210887U CN 203827354 U CN203827354 U CN 203827354U
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- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
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- 239000013307 optical fiber Substances 0.000 description 3
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- 230000017525 heat dissipation Effects 0.000 description 2
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Abstract
The utility model relates to an optical interface power supply control device for intelligent substation test equipment. The optical interface power supply control device comprises an optical interface module, a power supply module, an MOS tube and an external CPU. The optical interface module monitors the presence or absence of an optical signal with a specific wavelength, receives data of optical signal with the specific wavelength, then converts the data into electrical signal data, and converts a local electric signal into an output of the optical signal with the specific wavelength. The power supply module provides stable and reliable power supply for normal operation of the optical interface module. The external CPU control the MOS tube to connect or disconnect the power supplies of a transmitting unit and a receiving unit power supply of the optical interface module. According to the utility model, as for test equipment having a plurality of interfaces, especially for battery-powered testing equipment having a plurality of interfaces, the optical interface power supply control device for the intelligent substation test equipment is capable of significantly reducing the power consumption and quantity of heat of the equipment, extending the operation time of the equipment and reducing the cost for heat treatment of the equipment, and is especially suitable for optical interface power supply control of the intelligent substation handheld test equipment.
Description
Technical Field
The utility model relates to the field of electronic technology, concretely relates to intelligent substation test equipment optical interface power supply control device and method.
Background
An intelligent substation is a development trend of an intelligent power grid substation, and voltage and current of primary equipment in the intelligent substation are uniformly converted into optical digital SV sampling value signals through an electronic transformer or a traditional transformer through a merging unit and transmitted to IED equipment for relay protection, measurement and control, metering, power quality monitoring and the like in a point-to-point or networking mode; the on-site switch position signal, the protection tripping/closing signal and the control signal are all converted into optical digital GOOSE signals to realize point-to-point or network transmission; the electric IRIG-B (AC or DC code) of the traditional transformer substation is replaced by the optical IRIG-B/PPS or IEEE1588 network time tick signals in the intelligent transformer substation. The traditional test equipment based on analog signal input and output loses the armed place in an intelligent substation, the test equipment suitable for the development of the intelligent substation uses a large number of optical fiber interfaces, and the test of the corresponding functions of various IED equipment is completed by receiving and sending optical digital SV and GOOSE signals.
The intelligent substation mainly comprises two optical fiber interfaces, namely an optical Ethernet interface and an optical serial port, wherein the optical Ethernet interface is used for transmitting an IEC61850-9-2 format SV sampling value signal and an IEEE1588 time synchronization signal; the optical serial port is used for transmitting an IEC60044-8(FT3) format SV sampling value signal and an optical IRIG-B/PPS time-setting signal. The common power supply mode of the optical fiber interface is shown in fig. 1, an output interface of the power supply module is directly connected with a power input interface of the optical interface module, and the power supply of the transmitting unit and the power supply of the receiving unit of the optical interface module are not separated. In this power supply manner, when the optical interface module is not connected to the device under test, or is not in a data transmitting and receiving state even though the optical interface module is connected to the device under test, the optical interface module consumes energy. Due to the inherent characteristics of the optical interface module, the power consumption of the optical interface module occupies a considerable part of the power consumption of the test equipment, so that the heat productivity of the test equipment is large, heat dissipation measures need to be taken, the service lives of various internal devices are reduced to different degrees along with time, and the energy conservation is not facilitated. Most of test equipment of the intelligent substation does not need to simulate large voltage and large current output, the test equipment can integrate more test functions due to networking of secondary equipment, the intelligent, miniaturized and portable development trend is achieved, particularly, the handheld test equipment is powered by a lithium battery, operation and carrying are convenient, mobile maintenance and debugging can be achieved, the handheld test equipment is independent of a field power supply, adaptability is high, and the handheld test equipment is popular among numerous users. For the test equipment powered by the battery, the unreasonable power consumption of the optical interface causes the too fast consumption of the battery power, so that the normal working time of the test equipment is shortened, and great inconvenience is brought to the field test and maintenance.
Disclosure of Invention
In order to solve the technical problem, the utility model provides an optical interface power supply control device of an intelligent substation test device, which comprises an optical interface module, a power supply module and an external CPU; wherein,
the optical interface module comprises a sending unit and a receiving unit, wherein the receiving unit monitors whether an optical signal with a specific wavelength exists or not, receives optical signal data with the specific wavelength and converts the optical signal data into electrical signal data, and the sending unit converts a local electrical signal into an optical signal with the specific wavelength and outputs the optical signal;
the power supply module comprises a power supply interface and a power supply management module, the power supply interface is connected with the output of an external power supply or the output of a battery, and the power supply management module converts the voltage introduced by the power supply interface into the power supply voltage meeting the requirements of the optical interface module so as to provide a stable and reliable power supply for the normal work of the optical interface module;
the power management module supplies power to the sending unit and the receiving unit through an MOS tube Q1 and an MOS tube Q2 respectively; wherein
The grid electrode of the MOS tube Q1 is connected with a first I/O port of the external CPU through a first series resistor, the source electrode of the MOS tube Q1 is connected with the voltage output end of the power management module, and the drain electrode of the MOS tube Q1 is connected with the power supply port of the sending unit;
the grid electrode of the MOS tube Q2 is connected with a second I/O port of the external CPU through a second series resistor, the source electrode of the MOS tube Q2 is connected with the voltage output end of the power management module, and the drain electrode of the MOS tube Q2 is connected with the power supply port of the receiving unit;
the external CPU controls the on or off of an MOS tube Q1 and an MOS tube Q2 respectively by controlling the output levels of the first I/O port and the second I/O port, and further switches on or off the power supply connection of the transmitting unit, the receiving unit and the power management module.
In the above technical solution, the receiving unit of the optical interface module further includes an optical signal monitoring port for outputting whether the optical signal with the specific wavelength exists, when the receiving unit of the optical interface module is in a power supply state, if the optical signal with the specific wavelength is input to the receiving unit from the outside, the receiving unit monitors the optical signal and gives a high level indication at the optical signal monitoring port, otherwise, gives a low level indication at the optical signal monitoring port.
In the above technical solution, the first I/O port and the second I/O port of the external CPU are any one group of I/O control pins of the external CPU.
In the above technical solution, the first I/O port and the second I/O port of the external CPU are different ports.
In the above technical solution, the MOS transistor Q1 and the MOS transistor Q2 are P-channel MOS transistors.
The utility model discloses following technological effect has been gained:
(1) the heat productivity of the test equipment can be obviously reduced, the heat dissipation treatment cost is reduced, the working environment of various devices in the device is good, the reliable operation of the device is facilitated, and the energy conservation and environmental protection are also facilitated.
(2) The testing equipment powered by the battery, particularly the handheld testing equipment, can well reconcile the contradiction between the number of optical interfaces and the working time and the appearance size, reduce the power consumption rate of the battery, prolong the working time of the testing equipment when the battery is full, bring great convenience to field installation and debugging and fault maintenance, and improve the working efficiency.
Drawings
FIG. 1 is a schematic diagram of a power supply method of a conventional optical interface;
fig. 2 is a diagram of a power supply control circuit of an optical interface according to an embodiment of the present invention;
fig. 3 is a power supply control flow chart of the optical interface transmitting unit in the embodiment of the present invention;
fig. 4 is a flow chart of the power supply control of the optical interface receiving unit in the embodiment of the present invention;
Detailed Description
In order to facilitate the understanding and implementation of the present invention by those of ordinary skill in the art, the present invention is further described in detail with reference to the accompanying drawings and the detailed description.
The embodiment of the utility model provides an in, power management module changes the voltage of external power supply output or battery output into the supply voltage who satisfies the optical interface module requirement, provides stable working power supply for optical interface module.
The optical interface module comprises a sending unit and a receiving unit, wherein the receiving unit monitors whether an optical signal with a specific wavelength exists or not, the optical signal data with the specific wavelength is received and then converted into electric signal data, and the sending unit converts a local electric signal into an optical signal with the specific wavelength and outputs the optical signal.
In the embodiment of the present invention, as shown in fig. 2, the MOS transistor Q1 adopts a P-channel MOS transistor. The gate of Q1 is connected to the first CPUI/O port through a series resistor R1, the source of Q1 is connected to the +3.3V output voltage of the power module, and the drain of Q1 is connected to the power supply port of the optical interface module transmitting unit. When the first CPUI/O port outputs a high level, Q1 is turned off, the power module cannot supply power to the optical interface module sending unit, and the optical interface module sending unit does not consume power. When the first CPUI/O port outputs a low level, Q1 is turned on, the power module supplies power to the optical interface module sending unit, and the optical interface module sending unit operates normally.
In the embodiment of the utility model provides an in, MOS pipe Q2 adopts P channel MOS pipe. The gate of Q2 is connected to the second CPUI/O port through a series resistor R2, the source of Q2 is connected to the +3.3V output voltage of the power module, and the drain of Q2 is connected to the power supply port of the optical interface module receiving unit. When the second CPUI/O port outputs a high level, Q2 is turned off, the power module cannot supply power to the optical interface module transmitting unit, and the optical interface module receiving unit does not consume power. When the second CPUI/O port outputs a low level, Q2 is turned on, the power module supplies power to the optical interface module receiving unit, and the optical interface module receiving unit operates normally.
The first and second CPUI/O ports are any one of the CPUIO control pins, and the first and second CPUI/O ports are different CPUIO control pins.
The embodiment of the utility model provides an in, when light interface module receiving element is in power supply state, if the external world has the light signal to connect into light interface module receiving port, light signal can be monitored to light interface module to give high level at light signal monitoring port and instruct. Otherwise, a low level indication is given at the optical signal monitoring port.
The embodiment of the utility model provides an in, data transmission process is as shown in fig. 3, and when test equipment was in the test process, CPU needed to send test data or maintained the zero value data of link, and its IO port drive Q1's of CPU control grid was the low level, and Q1 switched on this moment, and optical interface module's sending unit is supplied power, and sending unit normally works, and the optical signal who data change specific wavelength through optical interface module sends away. If the data transmission is not completed, the gate of the Q1 is continuously driven to be low level; if the data transmission is completed, the gate of the Q1 is driven to high level, the transmitting unit of the optical interface module is not powered, and the next data transmission is waited. Thus, as long as the CPU does not need to transmit data, the transmitting unit of the optical interface module does not consume power.
The embodiment of the utility model provides an in, data receiving process is as shown in FIG. 4, and CPU controls its I/O port drive Q2's grid every second and be the low level and keep 100 milliseconds, and at this moment, Q2 switches on, and optical interface module's receiving element is supplied power, and the receiving element normally works. Then, the CPUI/O port detects whether the optical signal monitoring port is at a high level, if so, the optical signal monitoring port is input, the grid of the Q2 is continuously kept at a low level, the receiving unit of the optical interface module is continuously powered on, and the optical interface module can receive external optical signal data until the optical signal monitoring port is changed into a low level; if the optical signal monitoring port is at low level, the operation is repeated for the next second. Therefore, as long as no optical signal is input, the power consumption of the receiving unit of the optical interface module can be greatly reduced.
The above embodiment is only an implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (5)
1. The utility model provides an intelligent substation test equipment optical interface power supply controlling means which characterized in that: the system comprises an optical interface module, a power supply module and an external CPU; wherein,
the optical interface module comprises a sending unit and a receiving unit, wherein the receiving unit monitors whether an optical signal with a specific wavelength exists or not, receives optical signal data with the specific wavelength and converts the optical signal data into electrical signal data, and the sending unit converts a local electrical signal into an optical signal with the specific wavelength and outputs the optical signal;
the power supply module comprises a power supply interface and a power supply management module, the power supply interface is connected with the output of an external power supply or the output of a battery, and the power supply management module converts the voltage introduced by the power supply interface into the power supply voltage meeting the requirements of the optical interface module so as to provide a stable and reliable power supply for the normal work of the optical interface module;
the power management module supplies power to the sending unit and the receiving unit through an MOS tube Q1 and an MOS tube Q2 respectively; wherein
The grid electrode of the MOS tube Q1 is connected with a first I/O port of the external CPU through a first series resistor, the source electrode of the MOS tube Q1 is connected with the voltage output end of the power management module, and the drain electrode of the MOS tube Q1 is connected with the power supply port of the sending unit;
the grid electrode of the MOS tube Q2 is connected with a second I/O port of the external CPU through a second series resistor, the source electrode of the MOS tube Q2 is connected with the voltage output end of the power management module, and the drain electrode of the MOS tube Q2 is connected with the power supply port of the receiving unit;
the external CPU controls the on or off of an MOS tube Q1 and an MOS tube Q2 respectively by controlling the output levels of the first I/O port and the second I/O port, and further switches on or off the power supply connection of the transmitting unit, the receiving unit and the power management module.
2. The intelligent substation test equipment optical interface power supply control device of claim 1 characterized in that: the receiving unit of the optical interface module further comprises an optical signal monitoring port for outputting whether the optical signal with the specific wavelength exists.
3. The intelligent substation test equipment optical interface power supply control device of claim 1 or 2, characterized in that: the first I/O port and the second I/O port of the external CPU are any one group of I/O control pins of the external CPU.
4. The intelligent substation test equipment optical interface power supply control device of claim 3 characterized in that: the first I/O port and the second I/O port of the external CPU are different ports.
5. The intelligent substation test equipment optical interface power supply control device of claim 4, characterized in that: the MOS tube Q1 and the MOS tube Q2 are P-channel MOS tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420210887.2U CN203827354U (en) | 2014-04-28 | 2014-04-28 | Optical interface power supply control device for intelligent substation test equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420210887.2U CN203827354U (en) | 2014-04-28 | 2014-04-28 | Optical interface power supply control device for intelligent substation test equipment |
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| CN201420210887.2U Expired - Lifetime CN203827354U (en) | 2014-04-28 | 2014-04-28 | Optical interface power supply control device for intelligent substation test equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024759A (en) * | 2014-04-28 | 2015-11-04 | 武汉凯默电气有限公司 | Optical interface power supply control device and method for intelligent substation test equipment |
| CN106452600A (en) * | 2016-10-18 | 2017-02-22 | 杭州华三通信技术有限公司 | Optical interface energy-saving method and device |
| CN109474342A (en) * | 2018-10-16 | 2019-03-15 | 深圳市宇泰科技有限公司 | A kind of power-saving control circuit and electricity-saving control method for optical fiber receiver-transmitter module |
-
2014
- 2014-04-28 CN CN201420210887.2U patent/CN203827354U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024759A (en) * | 2014-04-28 | 2015-11-04 | 武汉凯默电气有限公司 | Optical interface power supply control device and method for intelligent substation test equipment |
| CN106452600A (en) * | 2016-10-18 | 2017-02-22 | 杭州华三通信技术有限公司 | Optical interface energy-saving method and device |
| CN106452600B (en) * | 2016-10-18 | 2019-09-06 | 新华三技术有限公司 | A kind of optical interface power-economizing method and device |
| CN109474342A (en) * | 2018-10-16 | 2019-03-15 | 深圳市宇泰科技有限公司 | A kind of power-saving control circuit and electricity-saving control method for optical fiber receiver-transmitter module |
| CN109474342B (en) * | 2018-10-16 | 2021-08-27 | 深圳市宇泰科技有限公司 | Power-saving control circuit and power-saving control method for optical fiber transceiver module |
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Granted publication date: 20140910 |
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