14 results about "Power over fiber" patented technology

A local equipment (100) for connection to a single fibre optical link (152), comprising: a laser light source (104) for generating a high power continuous wave, cw, downstream optical signal; and monitoring apparatus (106) for determining, based on an amplitude characteristic of a received upstream optical signal, whether the upstream optical signal is from a remote node or is a reflection from within the optical link, wherein the laser light source is operative to control generation of the downstream optical signal dependent what is determined. A remote equipment (200) for connection to the optical link (152) for receiving a downstream optical signal having an optical power, comprising: an optical splitter (204) for forming a return optical signal; an optical to electrical converter (206) configured to provide electrical power to optical signal conditioning apparatus (210) operative to apply an amplitude characteristic to the return optical signal dependent on the received optical power; and an optical routing element (208).

The utility model discloses a hydropower station Beidou signal terminal, which comprises a stand column, a bottom plate arranged at the bottom of the stand column, and a base arranged at the bottom of the bottom plate, and is characterized in that one side of the stand column is provided with a fixing frame, the fixing frame is provided with a Beidou signal terminal, one side of the stand column is also provided with an electric box, and the electric box is connected with the Beidou signal terminal. A lightning protection assembly is arranged on the upper side of the stand column, a photovoltaic panel assembly is further arranged on the outer surface, away from the electricity box, of the stand column, a partition plate is arranged in the stand column, and a side hole is further formed in the side, close to the electricity box, of the outer surface of the stand column. The Beidou signal terminal and the lightning protection assembly are arranged on the stand column, the partition plate is arranged in the stand column, a conductive lead in the lightning protection assembly can be separated from an optical fiber and a power supply line, lightning stroke is prevented from affecting work of other components of the equipment, the Beidou signal terminal and the lightning protection assembly are arranged on the stand column, personnel can conduct integrated installation, and great convenience is achieved.

A power-over-fiber (PoF) system comprises a proximal laser module, a distal power module, and an optical fiber bundle. The proximal module converts electrical energy into photon energy and transmits this photon energy through the fiber bundle. The distal module converts the photon energy back into electrical energy and provides galvanically isolated power to a load. The distal module includes an energy storage device that enables the provision of high peak currents. Sensor data transmitted via communication fibers allows the proximal module to regulate the laser power and implement safety mechanisms. The system provides galvanically isolated, dynamically regulated power suitable for high-voltage applications.

A power-over-fiber system includes a proximal laser module, a distal power module, and a fiber-optic cable bundle. The proximal module converts electrical energy into photon energy and transmits the photon energy through the fiber bundle. The distal module converts the photon energy into electrical energy and supplies isolated power to a load. The distal module includes a bulk energy storage device enabling delivery of high-peak currents. Sensor data transmitted through communication fibers allows the proximal module to regulate laser output and implement safety mechanisms. The system provides isolated, dynamically regulated power suitable for high-voltage applications.

The invention provides an optical fiber power supply management circuit and method and FTTR equipment, and relates to the technical field of optical fiber power supply. In the application, the optical fiber power supply management circuit comprises a power supply module, the positive electrode of the input side of an optical fiber power supply interface module is connected with the positive electrode of the power supply module, and the output side of the optical fiber power supply interface module is connected with a sub-gateway through a photoelectric composite cable; the positive electrode of the power supply control switch module is connected with the negative electrode of the input side of the optical fiber power supply interface module, and the negative electrode of the power supply control switch module is connected with the negative electrode of the power supply module; when power needs to be supplied to the sub-gateway, the power supply control switch module controls the positive electrode and the negative electrode to be conducted, and a power supply loop is formed. When the sub-gateway does not need to be powered, the power supply control switch module controls the positive electrode and the negative electrode to be switched off, the power supply loop is switched off, and power supply to the sub-gateway is stopped. On the basis of the content, the problem that in the prior art, the safety of optical fiber power supply is relatively low can be solved.

The invention relates to the technical field of industrial automation and equipment monitoring, and discloses an equipment state acquisition method and system based on an optical fiber power supply sensor, and the method comprises the steps: obtaining and processing multi-parameter data and an energy supply level, and obtaining an initial transmission signal; determining stable energy supply according to the initial transmission signal; acquiring data under stable energy supply and performing synchronous processing to obtain a synchronous data sequence; extracting features from the synchronous data sequence and performing fusion processing to determine a comprehensive state index; if the index deviates, carrying out dynamic weight optimization processing to determine an optimized weight set; performing position association strength verification according to the optimization weight set to obtain a verification association index; and generating a final state evaluation report according to the optimization weight set and the verification association index, and carrying out sensor positioning reliability verification. According to the method, the accuracy and reliability of state acquisition are improved through energy compensation and dynamic weight optimization.

Methods and systems for delivering power over an optical fiber are provided. In embodiments, light carrying optical power is provided by the optical fiber to a tapered fiber-bundle divider (TFBD), where the light is then divided into branches. In some embodiments, each branch is directed to a respective, further TFBD, where that branch is divided into subsequent branches. Electrical power is generated from each subsequent branch. In some embodiments, the light carries an optical signal, and a signal branch is created by the initial TFBD. In some of these embodiments, a multimode coupler is used to extract optical power from the signal branch. In some embodiments, each branch is matched to an electrical load according to the power generated from that branch and the power requirements of the electrical load. In some embodiments, an all-glass double-clad fiber or a triple-clad fiber is used to provide light.

The present invention relates to the field of wireless communication technology, and in particular to a fiber-optic powered wireless access controller and a communication method thereof, comprising: connecting the fiber-optic powered wireless access controller to a fiber-optic network, connecting a wireless access point to the controller via a wired or wireless method, synchronously configuring network parameters on the controller, and setting relevant parameters of the wireless access point; the controller detecting optical signal strength via an optical fiber interface to identify whether the optical signal is within a normal range; if the signal strength is insufficient, synchronously checking whether the optical fiber connection is correct and whether the optical module is normal; if the check result is yes, performing a handshake with an optical line terminal in the optical fiber network to establish a communication link. The present invention ensures coordinated operation of various parts by initializing configuration device parameters and connection methods, reduces subsequent failures caused by configuration confusion, and ensures a stable and high-speed data transmission channel based on the optical fiber link. It also utilizes mature optical fiber protocols to effectively carry large amounts of data.

The application discloses a device and a method for evaluating power consumption of a POF system, and comprises a test control module, a fiber power supply device, a data processing module and a load, wherein the fiber power supply device is connected with the test control module, the load is connected with the fiber power supply device through a fiber and a cable, the data processing module is connected with the fiber power supply device, the load comprises a CPU and a light emitting and receiving assembly, the CPU and the light emitting and receiving assembly are bidirectionally connected, the light emitting and receiving assembly is connected with the fiber power supply device through the fiber, and the load obtains a power supply voltage by connecting the fiber power supply device through the cable. The application can quickly evaluate power consumption demand of the system according to different wiring scenes, and select a suitable power supply system.

The invention relates to a transmitter-receiver arrangement (1) comprising an optical transmitter (2) with an optical source (6), an optical receiver (3), a power-over-fiber unit (4), and a connecting means (5) configured to provide a connection between the optical transmitter (2), the optical receiver (3), and the power-over-fiber unit (4) to a single optical fiber (30), wherein the optical transmitter (2) is configured to split light supplied by the optical source (6) into several strands (7-x) with different optical properties, wherein the optical transmitter (2) has an electro-optic modulator (9-x) for each of the several strands (7-x), which are configured to modulate the light of the respective strands (7-x) based on a received electrical signal (10-x), and wherein the strands (7-x) are combined downstream of the electro-optic modulators (9-x) and fed to the connecting means (5).wherein the optical receiver (3) is configured to separate and demodulate light received from the connecting means (5) into the multiple strands (7-x) according to their different optical properties and to provide a derived electrical signal (11-x) for each strand. The invention further relates to a method for operating a transmitter-receiver arrangement (1).

The application discloses a safety protection method suitable for an optical fiber power supply system, wherein a gateway device sends a ranging request signal to a terminal device according to a preset frequency and provides optical energy required by the terminal, and determines the sending time, signal power and modulation mode of the terminal device according to the transmission quality of the ranging request signal. The gateway device can adjust and alarm a request signal through the terminal device, can realize real-time sensing of the change of optical energy signal transmission parameters of an optical fiber channel when remotely providing electric energy for the intelligent terminal in the optical fiber power supply communication system, so that the gateway device and the terminal device provide electric energy to an external intelligent device in an optimal mode, and mutual matching of the change of optical energy power output by the gateway and the power parameter of the external intelligent device is ensured.

The present description concerns a system (100) comprising first (101) and second (103) electronic devices coupled by an optical fiber (105), wherein: the first device comprises a laser source (107) intended to illuminate the optical fiber; the second device comprises a photoelectric converter (111) intended to be illuminated from the optical fiber and a capacitive element (115) for storing electrical energy generated by the photoelectric converter; and the first and second electronic devices comprise a control circuit connected to the capacitive element and configured to: acquire a first charge curve of the capacitive element; compare the first charge curve with a second reference charge curve; and in case of a difference between the first and second charge curves, adapt an optical power of the laser source.

This application provides a fiber optic power supply management circuit, method, and FTTR device, relating to the field of fiber optic power supply technology. In this application, the fiber optic power supply management circuit includes: a power supply module, wherein the positive terminal of the input side of the fiber optic power supply interface module is connected to the positive terminal of the power supply module, and the output side of the fiber optic power supply interface module is connected to a sub-gateway via an optoelectronic composite cable; and a power supply control switch module, wherein the positive terminal of the power supply control switch module is connected to the negative terminal of the input side of the fiber optic power supply interface module, and the negative terminal of the power supply control switch module is connected to the negative terminal of the power supply module. When power needs to be supplied to the sub-gateway, the power supply control switch module controls the positive and negative terminals to conduct, forming a power supply loop; when power is not needed to supply power to the sub-gateway, the power supply control switch module controls the positive and negative terminals to turn off, disconnecting the power supply loop and stopping power supply to the sub-gateway. Based on the above, the relatively low security of fiber optic power supply in the prior art can be improved.

A method for transmitting data and power to minimize electromagnetic interference (EMI) in an EMI-sensitive environment, comprising; (i) transmitting data and power, via a first data and power transmission cable, from outside the EMI-sensitive environment, wherein the first data and power transmission cable is not suitable to transmit data and power within the EMI-sensitive environment; (ii) receiving, at a power and data converter, the transmitted data and power; (iii) converting, by the power and data converter, the received data and power to a power-over-fiber (PoF) transmission format; (iv) transmitting, from the converter via a PoF cable (230), the converted power and data to within the EMI-sensitive environment; and (v) receiving, by a device within the EMI-sensitive environment, the transmitted data and / or power.