CN205490579U - Time controlled system for naval vessel based on ethernet - Google Patents
Time controlled system for naval vessel based on ethernet Download PDFInfo
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- CN205490579U CN205490579U CN201620237999.6U CN201620237999U CN205490579U CN 205490579 U CN205490579 U CN 205490579U CN 201620237999 U CN201620237999 U CN 201620237999U CN 205490579 U CN205490579 U CN 205490579U
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Abstract
The utility model relates to a time controlled system for naval vessel based on ethernet belongs to clock technical field, especially relates to time controlled system's for the naval vessel technical field. Its specific technical scheme does: a time controlled system for naval vessel based on ethernet, includes the master clock, the secondary clock, the master clock be provided with the microprocessor core, the secondary clock in still be provided with the POE module, master clock and secondary clock all are provided with network interface to connect through the ethernet. The utility model has the advantages of it is following: adoption ethernet wiring has the temporal accuracy height, needs the advantage of repeated wiring, the secondary clock need not independent wiring.
Description
Technical field
A kind of warship ship's time control system based on Ethernet of this utility model belongs to clock technology field, particularly relates to the technical field of warship ship's time control system.
Background technology
Fast-developing with international transport industry and shipbuilding industry, clock system is widely used at ship domain.Clock system is had higher requirement by the development of cybertimes.And at present internal clock manufacturer of state synchronizes system and also rests on only time synchronized to its own system ship's clock, and the unrealized network interconnection, clock system technology mainly has the disadvantage that at present: 1, need single network, wiring complexity: the clock system that boats and ships use in the market, it is usually between master clock and secondary clock and uses RS422/485 mechanics of communication, need single routing network, each secondary clock must have fixing connection cable, the fixing order of connection, mistake can not be placed, because each secondary clock will be with master clock communication, nodal information is uploaded and obtains with the time.If cable goes wrong (making moist), directly result in all secondary clock Communications failures of this line.Secondary clock is powered or is mainly provided power supply by master clock, also needs independent cloth power line, simultaneously as the number of problem every way clocks such as DC voltage cable waste is limited by length and the thickness of cable.2, secondary clock management inconvenience: master clock only sends correcting delay signal to secondary clock, and general secondary clock does not send and feeds back to master clock, when secondary clock breaks down, can only manually go to confirm which secondary clock fault.3, later maintenance is costly: goes wrong and progressively to investigate questions and prospect, and general producer sends someone to keep in repair, if the engineer of user oneself, that will progressively manage line, need long time to put Chu in order, if secondary clock essence quantity is a lot, later stage is usually producer and safeguards, expense is higher.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, designs a kind of ship's time control system based on Ethernet.Its concrete technical scheme is: a kind of warship ship's time control system based on Ethernet, including master clock, secondary clock, it is characterized in that, described master clock is provided with microcontroller core, described secondary clock is additionally provided with POE module, master clock and secondary clock and is both provided with network interface, and connected by Ethernet
In order to more preferable time goal of the invention of the present utility model, technique scheme further can be improved:
A switch it is additionally provided with between described master clock and secondary clock.
Described master clock uses LED digital-scroll technique.
Described master clock uses constant-temperature crystal oscillator.
It is additionally provided with time signal on described master clock and receives unit.
This utility model has the advantage that employing Ethernet wiring, need not be individually for secondary clock and provide supply line, and system uses NTP time synchronization protocol to carry out time synchronized, within its precision can reach 10ms.There is time precision high. utilize active computer network to need not the advantage repeating wiring；Secondary clock realizes POE network power supply, it is not necessary to independent wiring.The equipment that can not only save is powered and is built and maintenance cost, such as power line, socket, pipeline etc., moreover it is possible to saves electrician's expense of costliness, also saves simultaneously and arrange the time installed needed for electric power system；Secondary clock manages quick and precisely: use ethernet communication, secondary clock management to support snmp agreement, can be embedded into the management platform of user；Master clock can provide time reference signal to other system by network interface, it is provided that UTC standard time interface and LTC local time signal, meets the demand of distinct device；Master clock uses LED digital-scroll technique, shows date Hour Minute Second, increases date and shows, is conveniently configured date in the case of without time reference signal source.LED digital-scroll technique adds dimming function simultaneously, it can be carried out multi-level brightness control, facilitates boats and ships navigation at night to use.
Figure of description
Fig. 1 is the structural scheme of mechanism of a kind of based on Ethernet the warship ship's time control system that embodiment 1 relates to；
Fig. 2 is the structural representation that a kind of based on Ethernet the warship ship's time control system that embodiment 2 relates to is provided with switch.
Detailed description of the invention
Embodiment
1
A kind of warship ship's time control system (seeing Fig. 1) based on Ethernet, including master clock 1, secondary clock 2, described master clock 1 is provided with microcontroller core 4, described secondary clock 2 is additionally provided with POE module 5, master clock 1 and secondary clock 2 and is both provided with network interface, and connected by Ethernet 3.
Embodiment
2
A kind of warship ship's time control system (seeing Fig. 2) based on Ethernet, including master clock 1, secondary clock 2, described master clock 1 is provided with microcontroller core 4, described secondary clock 2 is additionally provided with POE module 5, master clock 1 and secondary clock 2 and is both provided with network interface, and connected by Ethernet 3.A switch 6 it is additionally provided with between described master clock 1 and secondary clock 2.Described master clock is used LED digital-scroll technique.Be described master clock on be additionally provided with time signal receive unit.
The time synchronized of native system is to use LAN networking technology, and Ethernet is transmission medium, uses NTP time synchronization protocol to carry out time synchronized, has time precision high, utilizes active computer network to need not the advantage repeating wiring.
System uses centralized Control and adjustment, is made up of such as lower part: time signal receives unit, master clock and secondary clock.
Native system can be made up of a master clock and tens secondary clocks, is coupled to each other by Ethernet；It can provide local time and GMT simultaneously.Standard time receives unit and sends high-precision time reference signal by RS422 mode to master clock, to realize the calibration to master clock precision, it is ensured that system is run without cumulative error.Time reference signal is sent to miscellaneous equipment in each secondary clock and network by master clock by switch, thus unified full disc despatch.
With microprocessor (especially STM32F107 microprocessor) as core inside master clock, carry out data-storing, decoding operation, constitute control unit, operate the simplest, all secondary clocks the most quickly can be adjusted simultaneously, under various working environments, can reliability service.Master clock uses LED digital-scroll technique mode, is adjusted by keyboard and realizes various function.
Secondary clock is calibrated by master clock automatically.Master clock uses constant-temperature crystal oscillator, it is ensured that the precision of system and have time memory function.System is able to receive that the time signal of the nanosecond standard from GPS, sends each secondary clock to system by network after master clock processes, it is achieved the high accuracy of native system is run without cumulative error.
Master clock power supply uses AC/DC parallel power-supplying forms, realizes the non-stop run of system.
Secondary clock is that the quartz oscillator by secondary clock control system self runs, and by RJ45 interface, uses netting twine to be connected with master clock, by receiving the time reference signal that master clock sends, calibrates the precision of self, automatically to eliminate error, indicate the unified time；When not receiving time reference signal, secondary clock remains to the precision works with self.
Secondary clock has just to be dialled and two kinds of adjustment modes of backwash, it is possible to auto retrieving time, when receiving time reference signal, it is possible to quickly adjust the position of pointer with beeline to the standard time, during isolated operation, can by keyboard pair time.
Snmp agreement is supported in secondary clock management simultaneously, can be embedded into the management platform of user.SNMP is network management standard based on TCP/IP protocol suite, is the one standard agreement that manages network node (such as server, work station, router, switch etc.) in an ip network.SNMP can make network manager improve network management usefulness, finds and solve the growth of network problem and planning network in time.Network manager can also know network produced problem by the notification message of SNMP reception network node and alarm event report etc..
Secondary clock uses POE network power supply mode to work: POE (Power Over Ethernet) is in the case of existing Ethernet Cat.5 wiring architecture does not makes any changes, while for secondary clock transmission data signal, moreover it is possible to the technology of direct current supply is provided for secondary clock.POE technology can ensure the normal operation of existing network while guaranteeing existing structureization wiring safety, can reduce cost to greatest extent.POE building block technique is dissolved in secondary clock control part by native system.Power supply on Ethernet is carried out rectification, filter, modulate and voltage stabilizing process, obtain 5V voltage, to secondary clock control circuit provide power supply.Realize secondary clock network power supply.
The POE principle by cable power supply: five class netting twines of standard have four pairs of twisted-pair feeders, but only use in l0M BASE-T and 100M BASE-T therein two right.
Claims (5)
1. a warship ship's time control system based on Ethernet, including master clock, secondary clock, it is characterized in that, described master clock is provided with microcontroller core, is additionally provided with POE module in described secondary clock, master clock and secondary clock are both provided with network interface, and are connected by Ethernet.
Warship ship's time control system based on Ethernet the most according to claim 1, it is characterised in that be additionally provided with a switch between described master clock and secondary clock.
Warship ship's time control system based on Ethernet the most according to claim 1 and 2, it is characterised in that described master clock uses LED digital-scroll technique.
Warship ship's time control system based on Ethernet the most according to claim 3, it is characterised in that described master clock uses constant-temperature crystal oscillator.
Warship ship's time control system based on Ethernet the most according to claim 4, it is characterised in that be additionally provided with time signal on described master clock and receive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237999.6U CN205490579U (en) | 2016-03-28 | 2016-03-28 | Time controlled system for naval vessel based on ethernet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237999.6U CN205490579U (en) | 2016-03-28 | 2016-03-28 | Time controlled system for naval vessel based on ethernet |
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| CN205490579U true CN205490579U (en) | 2016-08-17 |
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| CN201620237999.6U Active CN205490579U (en) | 2016-03-28 | 2016-03-28 | Time controlled system for naval vessel based on ethernet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11240061B2 (en) | 2019-06-03 | 2022-02-01 | Progress Rail Locomotive Inc. | Methods and systems for controlling locomotives |
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2016
- 2016-03-28 CN CN201620237999.6U patent/CN205490579U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11240061B2 (en) | 2019-06-03 | 2022-02-01 | Progress Rail Locomotive Inc. | Methods and systems for controlling locomotives |
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