WO2012167561A1 - Laser and single-mode optical fibre telesignalization signal acquisition device - Google Patents

Laser and single-mode optical fibre telesignalization signal acquisition device Download PDF

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Publication number
WO2012167561A1
WO2012167561A1 PCT/CN2011/082309 CN2011082309W WO2012167561A1 WO 2012167561 A1 WO2012167561 A1 WO 2012167561A1 CN 2011082309 W CN2011082309 W CN 2011082309W WO 2012167561 A1 WO2012167561 A1 WO 2012167561A1
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laser
mode fiber
optical
circuit
optical fibre
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PCT/CN2011/082309
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French (fr)
Chinese (zh)
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石文江
阴晓光
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辽宁省电力有限公司大连供电公司
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Publication of WO2012167561A1 publication Critical patent/WO2012167561A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture

Definitions

  • the invention relates to a remote monitoring device for grid information, in particular to a laser and single mode fiber optic remote signal collecting device.
  • the remote moving signal acquisition device of the existing power grid mainly relies on the on/off of the DC circuit to reflect the switching state of the power equipment such as the circuit breaker and the knife gate.
  • the main disadvantages are as follows: First, the DC grounding problem, due to the remote signal loop
  • the DC floating battery power supply of the substation is used, that is, the DC bus voltage of +110V and -110V is directly used as the remote power supply, and +110V is the common end of the remote signal loop. If the insulation of the remote communication cable occurs, the auxiliary contact of the knife gate is flooded. If the cable connection is accidentally touched, etc., a straight book will occur.
  • the flow grounding fault causes the protection device to malfunction, resulting in a large-scale power outage.
  • the SOE resolution of the same signal is low. Because the traditional contact signal assists the contact process, a large number of jitter signals are generated. Therefore, the remote signal acquisition circuit must adopt the hardware and software jitter filtering process, which makes it difficult to achieve the same point. 2ms SOE resolution requirements.
  • the power consumption is large, and there is electromagnetic interference problem.
  • a 32-channel DC remote signal acquisition board usually consumes about 10W, and the full load power will be higher. Because it is close to the high-voltage equipment, it is susceptible to electromagnetic interference and sends out an error signal.
  • the object of the present invention is to overcome the deficiencies of the prior art and provide a laser and single mode fiber optic remote signal acquisition device with reliable performance, simple structure and low power consumption.
  • a laser and single mode fiber optic remote signal acquisition device characterized in that it is composed of a laser transmission circuit, a single mode fiber, an optical signal switch, and a laser signal receiving circuit, and the laser transmitting circuit Connected to one end of the single-mode fiber, the pigtail adapter at the other end of the single-mode fiber is mounted on the optical through-hole of the optical signal switch, the laser signal receiving circuit is connected to one end of the single-mode fiber, and the pigtail of the other end of the single-mode fiber
  • the adapter is correspondingly mounted on the optical through hole on the other side of the optical signal switch.
  • the laser transmitting circuit is composed of a power source, a resistor, a diode, and a laser diode.
  • the laser signal receiving circuit is composed of a power source, a photodiode and a switching circuit.
  • the light signal switch has a light shielding plate in the box body, which is composed of two symmetrically arranged sector plates, the central axis of the light shielding plate is pierced from both sides of the box body, and the box body opposite to the light shielding plate is provided with an optical through hole. , through the light through hole A pigtail adapter is attached to the single mode fiber.
  • the invention utilizes the on-off feedback of the optical signal loop to monitor the operating state of the monitored device, and transmits the remote information to the monitoring device, which has the advantages of simple structure, reliable performance, low power consumption, anti-electromagnetic interference capability, and can meet the requirements of live working. .
  • Figure 1 is a schematic view of the structure of the present invention.
  • FIG. 2 is a schematic view of a light-shielding disk of the optical signal switch of the present invention
  • the laser transmitting circuit 1 of the laser and single-mode optical fiber remote signal collecting device is connected to the 8-mode end of the single-mode optical fiber, and the pigtail adapter 9 at the other end of the single-mode optical fiber is correspondingly mounted on the optical signal switching device 4.
  • the laser signal receiving circuit 2 is connected to the end of the single mode fiber 10, and the pigtail adapter 11 at the other end of the single mode fiber is correspondingly mounted on the optical through hole of the other side of the optical signal switch.
  • the laser transmitting circuit is composed of a power source, a resistor R1, a diode D1, and a laser diode LD1.
  • the power supply is a 5V DC power supply, and the resistor R1 is used to meet the requirement of the laser diode operating voltage between 1.1 and 1.5V.
  • the diode D1 performs reverse voltage bypass protection and instantaneous forward overvoltage protection on the laser diode.
  • the laser diode LD1 emits a laser having a constant power of about lmW and a wavelength of 1310 nm to provide a stable light source.
  • the laser signal receiving circuit is composed of a power source, a photodiode and a switching circuit.
  • the power supply is a 5V DC power supply.
  • the switching circuit consists of resistors R2, R3, R4 and a triode VT1.
  • the photodiode PD1 receives 0.6mW of power during normal operation and outputs 0.4mA of photocurrent.
  • the triode is turned on, and the processor 3 connected to the emitter of the triode is recognized as "0", corresponding to the "closed” or “action” state of the controlled device; when there is no photocurrent in the loop, the triode By the time, the processor recognizes "1", which corresponds to the "minute” or "return” status of the controlled device.
  • the cavity of the casing 4 of the optical signal switch is provided with a light shielding plate 12, which is composed of two sector plates which are symmetrically arranged at 90 degrees, as shown in Fig. 2, the central axis 5 of the light shielding plate is worn from both sides of the casing.
  • One end is connected to the auxiliary mechanism 7 of the circuit breaker or the knife gate to be monitored in the power grid through the hinge 6.
  • the pigtail adapters 9 and 11 are correspondingly mounted on the optical through hole of the casing, and the optical through hole is disposed opposite to the light shielding plate. On the box.
  • the opaque disk in the optical signal switch When the state of the monitored device changes, it will drive the opaque disk in the optical signal switch to make a 90-degree rotation. The opaque disk will block or block the optical path.
  • the optical signal cannot be transmitted to the laser signal receiving circuit.
  • the laser signal receiving circuit outputs a high level to the processor connected thereto, representing the device "divided” or “returned”state; when not interrupted, the optical signal can be transmitted to the laser signal receiving power, the optical signal receiving circuit outputs a low level to the processor, representing the "close” or "action" of the device,

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

A laser and single-mode optical fibre telesignalization signal acquisition device, including a laser sending circuit (1), a single-mode optical fibre (8), an optical signal switch (4) and a laser signal receiving circuit (2). The laser sending circuit (1) is connected to one end of the single-mode optical fibre (8), and a pigtail adaptor (9) at the other end of the single-mode optical fibre (8) is correspondingly installed on an optical through-via at one side of the optical signal switch (4). The laser signal receiving circuit (2) is connected to one end of a single-mode optical fibre (10), and a pigtail adaptor (11) at the other end of the single-mode optical fibre (10) is correspondingly installed on an optical through-via at the other side of the optical signal switch (4). The device feeds back the operating status of the monitored apparatus using the ON/OFF of the optical signal circuit and transmits the telesignalization information to the monitoring apparatus, with a simple structure, reliable performance, low power consumption, and resistance to electromagnetic interference.

Description

激光和单模光纤遥信信号采集装置  Laser and single mode fiber optic remote signal acquisition device
技术领域 Technical field
本发明涉及一种电网信息远程监控设备，特别是一种激光和单模光纤遥信 信号采集装置。  The invention relates to a remote monitoring device for grid information, in particular to a laser and single mode fiber optic remote signal collecting device.
背景技术 说 Background art
现有电网的远动遥信信号采集装置主要依靠直流电路的通断来反应断路 器、 刀闸等电力设备的分合状态， 它主要存在如下不足： 一是直流接地问题， 由于遥信信号回路采用变电站的直流浮充电池电源， 即直接采用 +110V 和 -110V的直流母线电压作为遥信电源， +110V为遥信回路的公共端， 如果发生 遥信电缆绝缘损坏、 刀闸辅助接点进水、 电缆接线施工误碰等情况， 会发生直 书  The remote moving signal acquisition device of the existing power grid mainly relies on the on/off of the DC circuit to reflect the switching state of the power equipment such as the circuit breaker and the knife gate. The main disadvantages are as follows: First, the DC grounding problem, due to the remote signal loop The DC floating battery power supply of the substation is used, that is, the DC bus voltage of +110V and -110V is directly used as the remote power supply, and +110V is the common end of the remote signal loop. If the insulation of the remote communication cable occurs, the auxiliary contact of the knife gate is flooded. If the cable connection is accidentally touched, etc., a straight book will occur.
流接地故障， 导致保护装置误动作， 造成大面积停电。 二是同一点信号的 SOE 分辨率低， 由于传统接触式信号辅助接点动作过程中会产生大量的抖动信号， 因此遥信采集电路必须采取硬件和软件上的抖动过滤处理，导致同一点很难实 现 2ms的 SOE分辨率要求。 三是功率消耗大， 存在电磁干扰问题， 一块 32路 直流遥信采集板通常功耗为 10W左右， 满负载功率会更高， 由于距离高压设 备较近， 易受电磁干扰发出错误信号。 The flow grounding fault causes the protection device to malfunction, resulting in a large-scale power outage. Second, the SOE resolution of the same signal is low. Because the traditional contact signal assists the contact process, a large number of jitter signals are generated. Therefore, the remote signal acquisition circuit must adopt the hardware and software jitter filtering process, which makes it difficult to achieve the same point. 2ms SOE resolution requirements. Third, the power consumption is large, and there is electromagnetic interference problem. A 32-channel DC remote signal acquisition board usually consumes about 10W, and the full load power will be higher. Because it is close to the high-voltage equipment, it is susceptible to electromagnetic interference and sends out an error signal.
发明内容 Summary of the invention
本发明的目的在于克服现有技术的不足， 提供一种性能可靠， 结构简单， 功耗低的激光和单模光纤遥信信号采集装置。  The object of the present invention is to overcome the deficiencies of the prior art and provide a laser and single mode fiber optic remote signal acquisition device with reliable performance, simple structure and low power consumption.
本发明的目的是这样实现的： 一种激光和单模光纤遥信信号采集装置， 其 特征在于它由激光发送电路、 单模光纤、 光信号通断器、 激光信号接收电路构 成， 激光发送电路与单模光纤一端连接， 单模光纤另一端的尾纤适配器对应安 装在光信号通断器一侧光通孔上， 激光信号接收电路与单模光纤一端连接， 单 模光纤另一端的尾纤适配器对应安装在光信号通断器另一侧光通孔上。  The object of the present invention is achieved as follows: A laser and single mode fiber optic remote signal acquisition device, characterized in that it is composed of a laser transmission circuit, a single mode fiber, an optical signal switch, and a laser signal receiving circuit, and the laser transmitting circuit Connected to one end of the single-mode fiber, the pigtail adapter at the other end of the single-mode fiber is mounted on the optical through-hole of the optical signal switch, the laser signal receiving circuit is connected to one end of the single-mode fiber, and the pigtail of the other end of the single-mode fiber The adapter is correspondingly mounted on the optical through hole on the other side of the optical signal switch.
所述的激光发送电路由电源、 电阻、 二极管及激光二极管组成。  The laser transmitting circuit is composed of a power source, a resistor, a diode, and a laser diode.
所述的激光信号接收电路是由电源、 光电二极管和开关电路组成。  The laser signal receiving circuit is composed of a power source, a photodiode and a switching circuit.
光信号通断器的盒体内设有遮光盘， 它由两个对称设置的扇形盘构成， 遮 光盘的中轴从盒体两侧穿出， 与遮光盘相对的盒体上设有光通孔， 光通孔上连 接有与单模光纤连接的尾纤适配器。 The light signal switch has a light shielding plate in the box body, which is composed of two symmetrically arranged sector plates, the central axis of the light shielding plate is pierced from both sides of the box body, and the box body opposite to the light shielding plate is provided with an optical through hole. , through the light through hole A pigtail adapter is attached to the single mode fiber.
本发明利用光信号回路的通断反馈被监控设备的运行状态，并将遥信信息 传输至监控设备， 其结构简单， 性能可靠， 功耗低， 具有抗电磁干扰能力， 可 满足带电作业的要求。  The invention utilizes the on-off feedback of the optical signal loop to monitor the operating state of the monitored device, and transmits the remote information to the monitoring device, which has the advantages of simple structure, reliable performance, low power consumption, anti-electromagnetic interference capability, and can meet the requirements of live working. .
附图说明 DRAWINGS
图 1是本发明的结构示意图。  Figure 1 is a schematic view of the structure of the present invention.
图 2是本发明光信号通断器遮光盘的示意图  2 is a schematic view of a light-shielding disk of the optical signal switch of the present invention;
具体实施方式 detailed description
下面结合附图对本发明作进一步说明：  The present invention will be further described below in conjunction with the accompanying drawings:
如图 1所示，激光和单模光纤遥信信号采集装置的激光发送电路 1与单模 光纤 8—端连接， 单模光纤另一端的尾纤适配器 9对应安装在光信号通断器 4 一侧光通孔上， 激光信号接收电路 2与单模光纤 10—端连接， 单模光纤另一 端的尾纤适配器 11对应安装在光信号通断器另一侧光通孔上。  As shown in FIG. 1, the laser transmitting circuit 1 of the laser and single-mode optical fiber remote signal collecting device is connected to the 8-mode end of the single-mode optical fiber, and the pigtail adapter 9 at the other end of the single-mode optical fiber is correspondingly mounted on the optical signal switching device 4. On the side light through hole, the laser signal receiving circuit 2 is connected to the end of the single mode fiber 10, and the pigtail adapter 11 at the other end of the single mode fiber is correspondingly mounted on the optical through hole of the other side of the optical signal switch.
激光发送电路由电源、 电阻 Rl、 二极管 D1及激光二极管 LD1组成。 电 源为 5V直流电源， 电阻 R1用以满足激光二极管的工作电压在 1.1~1.5V之间 的要求， 二级管 D1对激光二级管进行反向电压旁路保护和瞬时正向过电压保 护， 激光二极管 LD1发出恒定功率约 lmW、 波长为 1310nm的激光， 用以提 供稳定的光源。  The laser transmitting circuit is composed of a power source, a resistor R1, a diode D1, and a laser diode LD1. The power supply is a 5V DC power supply, and the resistor R1 is used to meet the requirement of the laser diode operating voltage between 1.1 and 1.5V. The diode D1 performs reverse voltage bypass protection and instantaneous forward overvoltage protection on the laser diode. The laser diode LD1 emits a laser having a constant power of about lmW and a wavelength of 1310 nm to provide a stable light source.
激光信号接收电路是由电源、 光电二极管和开关电路组成。 电源为 5V直 流电源， 开关电路由电阻 R2、 R3、 R4和三极管 VT1组成， 光电二极管 PD1 正常工作时接收 0.6mW的功率， 输出 0.4mA的光电流。 回路中有光电流时， 三极管导通， 与三极管发射极相连接的处理器 3识别为 "0"， 对应于被控设备 为 "合"或 "动作"状态； 回路中无光电流时， 三极管截止， 此时处理器识别 为 " 1 "， 对应于被控设备的 "分"或 "复归"状态。  The laser signal receiving circuit is composed of a power source, a photodiode and a switching circuit. The power supply is a 5V DC power supply. The switching circuit consists of resistors R2, R3, R4 and a triode VT1. The photodiode PD1 receives 0.6mW of power during normal operation and outputs 0.4mA of photocurrent. When there is photocurrent in the loop, the triode is turned on, and the processor 3 connected to the emitter of the triode is recognized as "0", corresponding to the "closed" or "action" state of the controlled device; when there is no photocurrent in the loop, the triode By the time, the processor recognizes "1", which corresponds to the "minute" or "return" status of the controlled device.
光信号通断器的盒体 4空腔内设有遮光盘 12， 它由两个互成 90度且对称 设置的扇形盘构成， 见图 2， 遮光盘的中轴 5从盒体两侧穿出， 其一端通过铰 链 6与电网中需要监控的断路器或刀闸的辅助机构 7相连接， 尾纤适配器 9、 11对应安装在盒体光通孔上， 光通孔设置在与遮光盘相对的盒体上。  The cavity of the casing 4 of the optical signal switch is provided with a light shielding plate 12, which is composed of two sector plates which are symmetrically arranged at 90 degrees, as shown in Fig. 2, the central axis 5 of the light shielding plate is worn from both sides of the casing. One end is connected to the auxiliary mechanism 7 of the circuit breaker or the knife gate to be monitored in the power grid through the hinge 6. The pigtail adapters 9 and 11 are correspondingly mounted on the optical through hole of the casing, and the optical through hole is disposed opposite to the light shielding plate. On the box.
当被监控的设备状态发生变化时， 会带动光信号通断器中的遮光盘作 90 度转动， 遮光盘就会遮断或不遮断光通路， 遮断时， 光信号不能传输至激光信 号接收电路， 激光信号接收电路向与其相连接的处理器输出高电平， 代表设备 "分"或 "复归"状态； 不遮断时， 光信号能够传输至激光信号接收电 敫光信号接收电路向处理器输出低电平， 代表设备的 "合"或 "动作，， When the state of the monitored device changes, it will drive the opaque disk in the optical signal switch to make a 90-degree rotation. The opaque disk will block or block the optical path. When it is interrupted, the optical signal cannot be transmitted to the laser signal receiving circuit. The laser signal receiving circuit outputs a high level to the processor connected thereto, representing the device "divided" or "returned"state; when not interrupted, the optical signal can be transmitted to the laser signal receiving power, the optical signal receiving circuit outputs a low level to the processor, representing the "close" or "action" of the device,

Claims

权 利 要 求 书 Claim
1、 一种激光和单模光纤遥信信号采集装置， 其特征在于它由激光发送电 路、 单模光纤、 光信号通断器、 激光信号接收电路构成， 激光发送电路与单模 光纤一端连接，单模光纤另一端的尾纤适配器对应安装在光信号通断器一侧光 通孔上， 激光信号接收电路与单模光纤一端连接， 单模光纤另一端的尾纤适配 器对应安装在光信号通断器另一侧光通孔上。 1. A laser and single mode fiber optic remote signal acquisition device, characterized in that it is composed of a laser transmission circuit, a single mode fiber, an optical signal switch, and a laser signal receiving circuit, and the laser transmitting circuit is connected to one end of the single mode fiber. The pigtail adapter of the other end of the single-mode fiber is correspondingly mounted on the optical through-hole of the optical signal switch, the laser signal receiving circuit is connected to one end of the single-mode fiber, and the pigtail adapter of the other end of the single-mode fiber is correspondingly installed in the optical signal pass. The other side of the breaker is on the light through hole.
2、 根据权利要求 1所述的激光和单模光纤遥信信号采集装置， 其特征在 于激光发送电路由电源、 电阻、 二极管及激光二极管组成。  2. The laser and single mode fiber optic remote signal acquisition apparatus according to claim 1, wherein the laser transmission circuit is composed of a power source, a resistor, a diode, and a laser diode.
3、 根据权利要求 1所述的激光和单模光纤遥信信号采集装置， 其特征在 于所述的激光信号接收电路是由电源、 光电二极管和开关电路组成。  3. A laser and single mode fiber optic remote signal acquisition apparatus according to claim 1 wherein said laser signal receiving circuit is comprised of a power source, a photodiode and a switching circuit.
4、 根据权利要求 1所述的激光和单模光纤遥信信号采集装置， 其特征在 于光信号通断器的盒体内设有遮光盘， 它由两个对称设置的扇形盘构成， 遮光 盘的中轴从盒体两侧穿出， 与遮光盘相对的盒体上设有光通孔， 光通孔上连 接有激光发送电路和激光信号接收电路的尾纤适配器。  4. The laser and single mode fiber optic remote signal acquisition device according to claim 1, wherein the optical signal switch has a light shielding plate in the casing, which is composed of two symmetrically arranged sector disks, the light shielding disk. The central axis is pierced from both sides of the box body, and the box body opposite to the light shielding plate is provided with an optical through hole, and the fiber transmitting circuit and the pigtail adapter of the laser signal receiving circuit are connected to the optical through hole.
PCT/CN2011/082309 2011-06-10 2011-11-16 Laser and single-mode optical fibre telesignalization signal acquisition device WO2012167561A1 (en)

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CN201110155174.1A CN102832702B (en) 2011-06-10 2011-06-10 Laser-single mode fiber remote signaling signal sampling device
CN201110155174.1 2011-06-10

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