CN201311560Y - Network-type global satellite synchronizing clock - Google Patents
Network-type global satellite synchronizing clock Download PDFInfo
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- CN201311560Y CN201311560Y CN 200820141355 CN200820141355U CN201311560Y CN 201311560 Y CN201311560 Y CN 201311560Y CN 200820141355 CN200820141355 CN 200820141355 CN 200820141355 U CN200820141355 U CN 200820141355U CN 201311560 Y CN201311560 Y CN 201311560Y
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- synchronizing clock
- chip microprocessor
- satellite synchronizing
- signal receiver
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Abstract
The utility model discloses a network-type global satellite synchronizing clock which mainly comprises a GPS signal receiver and a GPS antenna connected with the GPS signal receiver and is characterized by also comprising a chip microprocessor, an NTP server and a pulse circuit, wherein the GPS signal receiver is respectively connected with the chip microprocessor and the pulse circuit, and the chip microprocessor is respectively connected with the pulse circuit and the NTP server. The utility model has the advantages that the time precision is high, the output pulse per second precision can reach the microsecond level, the signal receiving is not limited by region condition, the manufacture cost is low and the reliability is high.
Description
Technical field
The utility model relates to a kind of synchronous clock, specifically is meant a kind of network-type whole world satellite synchronizing clock that possesses two NTP (Network TimeProtocol NTP (Network Time Protocol)) time server.
Background technology
At present, some need the industry of precise time in oil, chemical industry, communication, aviation etc., and what generally adopt all is single NTP time server or the huge multichannel NTP time server of function.In industrial control process, for example in electric system, the network of each control system is to isolate mutually, and it just needs to use a plurality of NTP time servers.If adopt single NTP time server, because different LAN (Local Area Network) all is fully independently, can not couple together these LAN by single NTP time server, simultaneously, because the data of single NTP time server are backup not, be easy to cause losing of data, thereby make that the performance of this network is reliable inadequately, stable; And the huge multichannel NTP time server of employing function, though this multichannel NTP time server has functions such as multichannel time source, punctual function, multiple output, but the cost of this multichannel NTP time server is higher, and use also very inconveniently, be unfavorable for the simple place of time requirement being promoted at some.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, a kind of network-type whole world satellite synchronizing clock is provided, it not only can possess fully independently NTP time server of two-way simultaneously, and low price, thereby, improved reliability and reduced manufacturing cost for the client provides cheap two NTP Time Service district.
The purpose of this utility model is achieved through the following technical solutions: a kind of network-type whole world satellite synchronizing clock, mainly by the gps signal receiver, and the big line of the GPS that links to each other with the gps signal receiver is formed, this network-type whole world satellite synchronizing clock also includes chip microprocessor, NTP time server and pulsing circuit, described gps signal receiver links to each other with chip microprocessor and pulsing circuit respectively, and described chip microprocessor then links to each other with pulsing circuit and NTP time server respectively.
For the ease of communication, this network-type whole world satellite synchronizing clock also is provided with the RS232 serial ports, and this RS232 serial ports directly links to each other with chip microprocessor.Simultaneously, this network-type whole world satellite synchronizing clock also is provided with the nixie display that is used to show the time, and this nixie display also links to each other with described chip microprocessor.
Described pulsing circuit is programmable synchronizing pulse generation circuit.
The quantity of described NTP time server is more than one and the one.
The utility model compared with prior art has following advantage and beneficial effect:
(1) the utility model carries out time service with NTP, udp protocol mode to network class computing machine and automation equipment by the NTP time server, can greatly reduce the cost of investment of user's synchronized clock system, and improve the reliability of time service.
What (2) gps signal receiver of the present utility model adopted is the 15L movement that U.S. GARMIN company produces, the 1PPS that its output time precision is 1 μ s (1Pulse per second) pulse, and by information such as RS232 serial output universal time and receiver geographic position of living in, so this time precision height, the pulse per second (PPS) precision of output can reach the microsecond level, and the reception of synchronous signal is not subjected to the restriction of regional condition yet.
(3), and can select for use by various automation equipments easily through the serial port output time information by also programmable second, the output of minute, hour synchronizing pulse of programmable sync pulse generation circuit.
(4) all signal outputs of the present utility model are all isolated through photoelectricity, and antijamming capability is strong, meets the requirement of " static protective relaying device and automatic safety device general technical specifications " standard; The utility model also has multiple serial information output and interactive mode simultaneously, utilizes demand to satisfy the different signal of different user.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1, chip microprocessor of the present utility model adopts common single-chip microcomputer, be used for UTC (the Universal Time Coordinated Coordinated Universal Time(UTC)) information translation of gps signal receiver output is become Beijing time, and should send charactron display and NTP time server Beijing time respectively to simultaneously.Wherein, the charactron display shows received Beijing time the NTP time server then by network interface, carries out time service with NTP, udp protocol mode to network class computing machine and automation equipment.
The gps signal that is transmitted in order to receive gps antenna accurately, and the precision that improves the time service of NTP time server institute, the 15L movement that this gps signal receiver adopts U.S. GARMIN company to produce.Because the precision of this gps signal receiver output time is the 1PPS pulse of 1 μ s, so time precision is high, the pulse per second (PPS) precision of its output can reach the microsecond level; Because this chip microprocessor is also exported information such as universal time and receiver geographic position of living in by the RS232 serial line interface, signal therefore of the present utility model receives the restriction that is not subjected to regional condition simultaneously.Owing to directly be transferred on the programmable synchronizing pulse generation circuit from the UTC temporal information of gps signal receiver output, the Beijing time that chip microprocessor is exported also is input on this programmable synchronizing pulse generation circuit, simultaneously because this pulse generating circuit itself just has programing function, therefore this pulse generating circuit can be set second, minute, hour synchronizing pulse output by programming, and can select for use by various automation equipments easily through the serial port output time information.
Wherein, NTP time server of the present utility model adopts flush bonding module on hardware, receives the Serial Port Information and the pulse signal of host CPU, realizes standard NTP service on flush bonding module.This NTP time server adopts fully independently NTP time server of two-way, because this ntp server employing is that flush bonding module is realized, therefore can improve reliability of the present utility model greatly, and reduces manufacturing cost.Simultaneously, this NTP time server can also increase arbitrarily or deletes according to different requirements of customers, the NTP time server that is increased only needs to be connected with chip microprocessor and gets final product, and do not need to increase again other equipment, therefore the quantity of this NTP time server not only can be for more than one, but also can simplify network structure greatly, reduce application cost.
In actual mechanical process, at first need to erect a television antenna, this network-type whole world satellite synchronizing clock is furnished with an easy-to-install active antenna.Aerial head is encapsulated in and is about in the high plastic disc of the about 30mm of 100mm diameter, and the guide wire of antenna is a loss coaxial cables long about 30m.The user also can be equipped with antenna voluntarily.For guaranteeing to receive the reliability of gps satellite signal, antenna length is recommended to use 30 meters, and is long no longer than 100 meters.Aerial head will be installed in outdoor, is in principle to look up along aerial head to see 360.Sky.Next is exactly that this network-type whole world satellite synchronizing clock device is installed, and device should be installed near the device place that uses clock signal as far as possible, and when multiple arrangement used clock signal, Unit Installation choice of location principle should reduce the length of cable as far as possible.For reducing the length of antenna connection, have certain intensity to guarantee the gps signal that receives, device can be installed in close antenna from the place that buildings is drawn, with cable output signal being delivered to needs synchronous device.After connecting antenna and power supply, device can be put into operation.Turn on the power switch, light-emitting diode display demonstrated without synchronous Beijing time, monitor that synchronously pilot lamp is glittering, device installs in new position, need the time of a few minutes to carry out initialization after powering on, promptly calculate residing geographic position, output time is proofreaied and correct according to the gps satellite signal that receives.This process generally needs about 7 minutes, and after initialization finished, device obtained the satellite synchronizing information, display standard Beijing time, and begin free synchronizing pulse and export, synchro light extinguishes.After the device initialization, only otherwise the shift position,, only need to get final product operate as normal in about 20 seconds as powering on again after the outage.After device puts into operation, change serial port output baud rate if desired, the back that then need cut off the power supply is extracted upper cover plate out and is carried out wire jumper, behind wire jumper, can power on after installing upper cover plate, and device can be by the baud rate work of selecting.
As mentioned above, just can realize the utility model preferably.
Claims (6)
1, the global satellite synchronizing clock of a kind of network-type, mainly by the gps signal receiver, and the gps antenna that links to each other with the gps signal receiver is formed, it is characterized in that, this network-type whole world satellite synchronizing clock also includes chip microprocessor, NTP time server and pulsing circuit, described gps signal receiver links to each other with chip microprocessor and pulsing circuit respectively, and described chip microprocessor then links to each other with pulsing circuit and NTP time server respectively.
2, the global satellite synchronizing clock of a kind of network-type according to claim 1 is characterized in that, this network-type whole world satellite synchronizing clock also is provided with the RS232 serial ports, and this RS232 serial ports directly links to each other with chip microprocessor.
3, the global satellite synchronizing clock of a kind of network-type according to claim 1 is characterized in that, this network-type whole world satellite synchronizing clock also is provided with nixie display, and this nixie display also links to each other with described chip microprocessor.
4, the global satellite synchronizing clock of a kind of network-type according to claim 1 is characterized in that described pulsing circuit is programmable synchronizing pulse generation circuit.
5, the global satellite synchronizing clock of a kind of network-type according to claim 1 is characterized in that the 15L movement that described gps signal receiver adopts U.S. GARMIN company to produce.
6, a kind of network-type according to claim 1 whole world satellite synchronizing clock is characterized in that, the quantity of described NTP time server is more than one and the one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820141355 CN201311560Y (en) | 2008-11-12 | 2008-11-12 | Network-type global satellite synchronizing clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820141355 CN201311560Y (en) | 2008-11-12 | 2008-11-12 | Network-type global satellite synchronizing clock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201311560Y true CN201311560Y (en) | 2009-09-16 |
Family
ID=41108817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820141355 Expired - Fee Related CN201311560Y (en) | 2008-11-12 | 2008-11-12 | Network-type global satellite synchronizing clock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201311560Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436172A (en) * | 2011-12-02 | 2012-05-02 | 河南省电力公司南阳供电公司 | Multifunctional watt-hour meter and GPS timing system |
| CN103454911A (en) * | 2013-09-16 | 2013-12-18 | 中国航天科工集团第二研究院二〇三所 | Rough synchronization method for satellite bidirectional time comparison |
| CN109039572A (en) * | 2018-06-19 | 2018-12-18 | 上海卫星工程研究所 | It is a kind of to realize that information receives the synchronous circuit of single machine clock on star under burst mode |
-
2008
- 2008-11-12 CN CN 200820141355 patent/CN201311560Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436172A (en) * | 2011-12-02 | 2012-05-02 | 河南省电力公司南阳供电公司 | Multifunctional watt-hour meter and GPS timing system |
| CN103454911A (en) * | 2013-09-16 | 2013-12-18 | 中国航天科工集团第二研究院二〇三所 | Rough synchronization method for satellite bidirectional time comparison |
| CN109039572A (en) * | 2018-06-19 | 2018-12-18 | 上海卫星工程研究所 | It is a kind of to realize that information receives the synchronous circuit of single machine clock on star under burst mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20131112 |