CN203275901U - BeiDou/GPS dual mode time service device based on solar power generation - Google Patents

Abstract

A BeiDou/GPS dual mode time service device based on solar power generation comprises a GPS receiver, a BeiDou receiver, a Bluetooth module, a solar power supply unit, a control unit and a time service signal output unit, wherein the solar power supply unit comprises a magnetic solar panel and a solar charger; the control unit comprises an FPGA, a pulse output module, an IEEE1588 protocol clock, a time message output module, a network interface module and a power supply module; the time service signal output unit comprises an Ethernet controller and a network interface; the GPS receiver and the BeiDou receiver are commonly supplied with power by using solar energy, and thus the GPS receiver and the BeiDou receiver environmental-friendly and low-cost; the GPS receiver and the BeiDou receiver are connected with the control unit by the Bluetooth module, the FPGA can flexibly consider signal quality location, and the information can be conveniently transmitted; based on the BeiDou/GPS dual mode time service way, the time unification of the power system can be achieved by the time service device of the IEEE1588 protocol clock at the special situation, and excessive dependence on GPS can be gotten rid of, and great potential safety hazard caused by the time service system can be effectively eliminated.

Description

A kind of Big Dipper based on solar electrical energy generation/GPS bimodule time service device

Technical field

The utility model relates to the generation of electricity by new energy technical field, is specifically related to a kind of Big Dipper based on solar electrical energy generation/GPS bimodule time service device.

Background technology

Electric system is and closely-related system of time, and the variation at parameters such as voltage, electric current, phase angle and merit angle is all waveforms relevant to time shaft.And the large zone that is accompanied by network system is interconnected, and the UHV transmission technology has obtained swift and violent development, and the safe and stable operation of electric system has proposed Secretary to Electric Power Automation Equipment.Particularly to time synchronized; require protective relaying device, automation equipment, safety stabilization control system, energy management system (EMS) and Style Product Information Management System etc. based on unified time reference operation; to satisfy sequence of events recording (SOE), failure wave-recording, the requirement of real-time data acquisition time consistency; guarantee the accuracy of line fault range finding, phasor and the monitoring of merit angular motion attitude, unit and electrical network parameter verification; and power grid accident analysis and stable control level, improve operational efficiency and reliability thereof.Applying of following digital power technology, higher to the requirement meeting of time synchronized.

Be applied at present the satellite time transfer that Time synchronization technique in China's electrical network mainly is based on american global positioning system (GPS), the distributed network that is related to like this national economy for electric system adopts GPS to have potential safety hazard as the time service benchmark.

Summary of the invention

For the deficiencies in the prior art, the utility model provides a kind of Big Dipper based on solar electrical energy generation/GPS bimodule time service device.

The technical solution of the utility model is:

A kind of Big Dipper based on solar electrical energy generation/GPS bimodule time service device comprises GPS receiver, Beidou receiver, bluetooth module, solar powered unit, control module and time signal output unit;

Described solar powered unit comprises magnetic solar panel and solar charger;

Described control module comprises FPGA, pulse output module, IEEE1588 agreement clock, time message output module, network interface output module and power module;

Described time signal output unit comprises ethernet controller and network interface;

Described bluetooth module comprises the first bluetooth module and the second bluetooth module, and the first bluetooth module embeds in the GPS receiver, and the second bluetooth module embeds in Beidou receiver;

the output terminal of magnetic solar panel connects the input end of solar charger, the output terminal of solar charger is connected to respectively GPS receiver and Beidou receiver, the input end of pulse output module, the output terminal of IEEE1588 agreement clock, the input end of time message output module is connected output terminal and all is connected with FPGA with power module, the output terminal of time message output module is connected with the input end of network interface, the output terminal of network interface output module is connected with the input end of ethernet controller, the output terminal interconnection network interface of ethernet controller, network interface accesses electric system by optical fiber.

This device also comprises standby power supply, and back-up source is arranged on respectively on GPS receiver and Beidou receiver.

Beneficial effect:

The present invention is from security, the stability of electrical network, according to electric system Time synchronization technique standard, to studying based on the electric system Time synchronization technique of the Big Dipper/GPS bimodulus time service special circumstances IEE1588 agreement clock time service, propose a kind of Big Dipper based on solar electrical energy generation/GPS bimodule time service device, the concrete advantage of this device is as follows:

1, GPS receiver and Beidou receiver adopt sun power to commonly use power supply, environmental protection and low cost;

2, GPS receiver and Beidou receiver are connected with control module by bluetooth module, and FPGA can consider the good and bad addressing of signal flexibly, and transmission of information is convenient;

3, adopt based on the Big Dipper/GPS bimodulus time service, the time dissemination system of special circumstances IEE1588 agreement clock is realized the time unification of electric system, can break away from the undue dependence to GPS, effectively eliminates the huge potential safety hazard that its time dissemination system brings;

4, based on the Big Dipper/GPS bimodulus time service, the time dissemination system of special circumstances IEE1588 agreement clock has the advantages that dirigibility is large, time service precision is high, time service is stable.Compare with traditional time dissemination system, the precision of this system is higher than legacy system 20% left and right.

The utility model is applicable to the laboratory and uses, and supports the use better effects if with micro power network.

Description of drawings

Fig. 1 is the Big Dipper based on solar electrical energy generation/GPS bimodule time service device structured flowchart of the utility model embodiment;

Fig. 2 is the circuit catenation principle figure of the utility model embodiment control module;

Fig. 3 is the utility model embodiment GPS receiver interface circuit figure;

Fig. 4 the utility model embodiment Beidou receiver interface circuit schematic diagram;

Fig. 5 the utility model embodiment time signal output unit circuit theory diagrams.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.

As shown in Figure 1, the Big Dipper based on solar electrical energy generation of present embodiment/GPS bimodule time service device comprises GPS receiver, Beidou receiver, bluetooth module, solar powered unit, control module and time signal output unit.

The model of GPS receiver is M332062, and the GPS receiver of this model has the telescope structure of inner lithium battery, its interface circuit as shown in Figure 3, the model of Beidou receiver is BDV1, the Beidou receiver of this model has the telescope structure of inner lithium battery.The interface circuit of Beidou receiver as shown in Figure 4.

Solar powered unit comprises magnetic solar panel and solar charger, and wherein, the model of magnetic solar panel is Semtech SC4215JSETRT, and solar charger is S1800 patriot's solar charger.

Control module comprises FPGA, pulse output module, IEEE1588 agreement clock, time message output module, network interface output module and power module; Control module is used for realizing the various data collection and analysis of system and output function, the model that FPGA selects is the XC3S000 of the spartan3 series of Xilinx company, the model of pulse output module is E-GM-200CAB, the time message output that FPGA produces exports network interface to by time message output module RS-422/485, the network interface output module is the network interface of GBI1001 model, it is the power supply chip of NPC565 that power module adopts model, and circuit as shown in Figure 2.

As shown in Figure 5, the time signal output unit comprises ethernet controller and network interface, the model that ethernet controller adopts is RTL8019AS-LF, the signal transmitting and receiving of the ethernet controller of this model can reach the speed of 10Mbps simultaneously, satisfy high-precision clock signal transmission, the model of network interface is 18GBI1001.

Bluetooth module comprises the first bluetooth module and the second bluetooth module, and the first bluetooth module embeds in the GPS receiver, and the second bluetooth module embeds in Beidou receiver, and bluetooth module adopts BC57E687C type Bluetooth chip;

the output terminal of magnetic solar panel connects the input end of solar charger, the output terminal of solar charger is connected to respectively GPS receiver and Beidou receiver, the input end of pulse output module, the output terminal of IEEE1588 agreement clock, the input end of time message output module is connected output terminal and all is connected with FPGA with power module, the output terminal of time message output module is connected with the input end of network interface, the output terminal of network interface output module is connected with the input end of ethernet controller, the output terminal interconnection network interface of ethernet controller, network interface accesses electric system by optical fiber.

This device also comprises standby power supply, and it is the 3V lithium battery of CR3032 that standby power supply adopts model, and back-up source is arranged on respectively on GPS receiver and Beidou receiver.

The course of work of the above-mentioned Big Dipper based on solar electrical energy generation/GPS bimodule time service device is as follows:

Convenient height according to reality utilizes magnetic that the magnetic solar panel is fixed on sunny side, and the magnetic solar panel is connected with solar charger by electric wire, and solar charger is input to rated voltage in GPS receiver and Beidou receiver.When running into extremely special long-time rainy weather, the lithium battery of GPS receiver and Beidou receiver inside can continue power supply.GPS receiver and Beidou receiver are sent into FPGA with the 1PPS pulse signal by bluetooth module.The 1PPS that FPGA sends the synchronizing signal of IEEE1588 agreement clock sends into digital phase discriminator as the 1PPS of benchmark and GPS receiver and Beidou receiver output and carries out phase demodulation, carrying out the signal integrity differentiates, if signal does not jump suddenly or interrupts, think that signal is intact, the signal that in FPGA selection GPS receiver signal and Beidou receiver signal, precision is high is as time signal.In case the signal of two receivers all lost efficacy, FPGA will carry out time service according to the clock signal that the transmission of IEE1588 agreement clock comes.FPGA decodes and synthetic NTP message to selected time stream, sends into network (electric system) through ethernet controller ethernet control chip and network interface, carry out network to the time.

Claims (2)

1. the Big Dipper based on solar electrical energy generation/GPS bimodule time service device, comprise GPS receiver and Beidou receiver, it is characterized in that: also comprise bluetooth module, solar powered unit, control module and time signal output unit;

Described solar powered unit comprises magnetic solar panel and solar charger;

Described control module comprises FPGA, pulse output module, IEEE1588 agreement clock, time message output module, network interface output module and power module;

Described time signal output unit comprises ethernet controller and network interface;

Described bluetooth module comprises the first bluetooth module and the second bluetooth module, and the first bluetooth module embeds in the GPS receiver, and the second bluetooth module embeds in Beidou receiver;

the output terminal of magnetic solar panel connects the input end of solar charger, the output terminal of solar charger is connected to respectively GPS receiver and Beidou receiver, the input end of pulse output module, the output terminal of IEEE1588 agreement clock, the input end of time message output module is connected output terminal and all is connected with FPGA with power module, the output terminal of time message output module is connected with the input end of network interface, the output terminal of network interface output module is connected with the input end of ethernet controller, the output terminal interconnection network interface of ethernet controller, network interface accesses electric system by optical fiber.

2. a kind of Big Dipper based on solar electrical energy generation according to claim 1/GPS bimodule time service device, it is characterized in that: this device also comprises standby power supply, and back-up source is arranged on respectively on GPS receiver and Beidou receiver.

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