CN201892836U

CN201892836U - GPS (global position system) satellite synchronous clock

Info

Publication number: CN201892836U
Application number: CN 201020643719
Authority: CN
Inventors: 张为民; 万旭; 胡浩; 邓东红
Original assignee: HUNAN HUAZI TECHNOLOGY Co Ltd
Current assignee: HNAC Technology Co Ltd
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2011-07-06
Anticipated expiration: 2020-12-07

Abstract

The utility model discloses a GPS satellite synchronous clock, which comprises a CPU (central processing unit) controlling and data processing module, a GPS signal receiving module, a relay output module, a display module, an indicator lamp clock module and a communication module, wherein the GPS signal receiving module is connected with the signal input terminal of the CPU controlling and data processing module; the signal output terminal of the CPU controlling and data processing module is connected with the relay output module; and the CPU controlling and data processing module is bi-directionally and electrically connected with the display module, the indicator lamp clock module and the communication module respectively. The GPS satellite synchronous clock disclosed by the utility model takes a satellite space-borne atomic clock as a time standard, so that accumulated error is avoided, and the precision is greatly improved.

Description

The gps satellite synchronous clock

Technical field

The utility model relates to a kind of device of indicating the current standard time, specifically is a kind of gps satellite synchronous clock.

Background technology

The electronic clock of band RTC chip in used time display apparatus all adopts at present, this device does not have the gps satellite receiving function, is not with synchronizing pulse output, can not offer outside synchronous base, can only be as the display device of a current time.Simultaneously, because existing time display apparatus does not have synchronizing function, make that the precision of time showing is not high.

Summary of the invention

At the defective that above-mentioned prior art exists, the purpose of this utility model aims to provide a kind of gps satellite synchronous clock, adopts satellite carried atomic clock as time standard, and no cumulative errors makes precision improve greatly.

The technical scheme of taking of the present utility model is that a kind of gps satellite synchronous clock comprises CPU control and data processing module, gps signal receiver module, relay output module, display module, pilot lamp clock module and communication module; Described gps signal receiver module inserts the signal input part of described CPU control and data processing module; The signal output part cut-in relay output module of described CPU control and data processing module; Described CPU control and data processing module are respectively with display module, pilot lamp clock module with communication module is two-way is electrically connected.

According to embodiment, as preferred version, described CPU control and data processing module select for use arithmetic speed to reach the technical grade microprocessor of 100MIPS, and are built-in with temperature sensor in CPU control and data processing module.

Gps satellite synchronous clock band four road RS485 communication interfaces described in the utility model, time data of per second output; Four tunnel pulse per second (PPS)s output, the one tunnel divides pulse output, pulse in a tunnel hour output.Gps satellite synchronous clock described in the utility model adopts the high-quality GPS receiver of 12 passages, has the also ability of 12 satellites of line trace, in case initialization is finished, also can realize the time service function even lock a satellite, so this gps satellite synchronous clock has powerful antijamming capability.This gps satellite synchronous clock meets " static protective relaying device and automatic safety device general technical specifications " and " standardization center, middle Electricity Federation clock synchronization system technical manual 051222 ".The software and hardware of this gps satellite synchronous clock adopts multinomial interference protection measure.Described gps satellite synchronous clock can be with the position longitude of receiver and latitude information and temporal information by being sent to host computer on the communication port.

Gps satellite synchronous clock described in the utility model does not have cumulative errors, and precision improves greatly;

Field in the time of can being widely used in electric power, civil aviaton, railway, traffic scheduling, Digital Television, real-time Communication for Power network system etc. and needing time service and school.

Description of drawings:

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structural representation of the described gps satellite synchronous clock of embodiment;

Fig. 2 is the panel displayed map of the described gps satellite synchronous clock of embodiment;

Fig. 3 is the tail wiring terminal distribution plan of the described gps satellite synchronous clock of embodiment.

In above-mentioned accompanying drawing:

1-CPU control and data processing module; The 2-GPS signal receiving module;

The 3-relay output module; The 4-display module; 5-pilot lamp clock module;

The 6-communication module.

Embodiment

Embodiment one:

As shown in Figure 1, present embodiment provides a kind of gps satellite synchronous clock, comprises CPU control and data processing module 1, gps signal receiver module 2, relay output module 3, display module 4, pilot lamp clock module 5 and communication module 6; Described gps signal receiver module 2 inserts the signal input part of described CPU control and data processing module 1; The signal output part cut-in relay output module 3 of described CPU control and data processing module 1; Described CPU control and data processing module 1 respectively with display module 4, pilot lamp clock module 5, communication module 6 two-way electrical connections.

The CPU control of present embodiment and data processing module 1 select for use arithmetic speed to reach as high as the technical grade microprocessor of 100MIPS, are with 128KFLASH, 32KRAM, SPI, I2C, 12 DAC passages, 2 tunnel communications or CAN interfaces; In CPU control and data processing module, be built-in with temperature sensor, can pass through computed in software, revise and draw the device working temperature.

The gps signal receiver module 2 of present embodiment: with the satnav time signal that receives, handle, adopt the universal serial bus mode to send into cpu chip through associated analog and digital circuit.

The relay output module 3 of present embodiment: adopt cpu chip I/O mouth directly to carry out the output of optical relay control signal.

The communication module 6 of present embodiment: adopt four road RS485 buses, 4 tunnel pulse per second (PPS)s, a tunnel to divide pulse, pulse in a tunnel hour output.Described RS485 bus is a prior art.Its RS485 communication realizes communication by SN65HVD17 after the light lotus root isolates; 4 tunnel pulse per second (PPS)s, one tunnel divide pulse, pulse in a tunnel hour, adopt the light lotus root to isolate directly output of back.

The pilot lamp of present embodiment and clock module 5: by two chips of SN74HC164, adopt the universal serial bus mode, CPU controls pilot lamp Push And Release state.

The display module 4 of present embodiment: adopt 6 red charactron display modules, by bus output CPU video data.

Shown in Fig. 2,3, present embodiment adopts 1U standard rack formula cabinet, and appearance looks elegant is generous, adopts wide region AC power or direct supply, can be fit to the more work scene.

The front of described gps satellite synchronous clock adopts red charactron to show current zone time; Have hour, minute, the number demonstration in second and running indicator, satellite synchro light.Described gps satellite synchronous clock adopts the serial communication port communications, and there is the pulse output interface of 2 tunnel 232 communication interfaces, 2 tunnel 485 communication interfaces and a time data of output in four tunnel one seconds at the back side.15KV ESD protection is isolated and contained to total interface in the described gps satellite synchronous clock through photoelectricity, the protection of the antisurge of the anti-thunderbolt of built-in 600W simultaneously.

When the described gps satellite synchronous clock of present embodiment can show and export any time zone of Beijing time, Coordinated Universal Time(UTC) (UTC) and other, minute, second and Gregorian calendar date year, month, day etc.Adopt LED display message content, indicate power supply with synchronous respectively with two red lights simultaneously, with four green lights indicate respectively satellite synchronizing clock operation, pulse per second (PPS), branch pulse, the time pulse information.Adopt idle contact and TTL level mode to export pulse per second (PPS) (1PPS), divide pulse (1PPM) pulse (1PPH) signal in time, realize precision high synchronously to the time.

Claims

1. a gps satellite synchronous clock is characterized in that, comprises CPU control and data processing module (1), gps signal receiver module (2), relay output module (3), display module (4), pilot lamp clock module (5) and communication module (6); Described gps signal receiver module (2) inserts the signal input part of described CPU control and data processing module (1); The signal output part cut-in relay output module (3) of described CPU control and data processing module (1); Described CPU control and data processing module (1) respectively with display module (4), pilot lamp clock module (5) and two-way electrical connection of communication module (6).

2. according to the described gps satellite synchronous clock of claim 1, it is characterized in that described CPU control and data processing module (1) select for use arithmetic speed to reach the technical grade microprocessor of 100MIPS, and are built-in with temperature sensor in CPU control and data processing module.