CN201654495U - Satellite time transfer integrative machine - Google Patents
Satellite time transfer integrative machine Download PDFInfo
- Publication number
- CN201654495U CN201654495U CN 201020167086 CN201020167086U CN201654495U CN 201654495 U CN201654495 U CN 201654495U CN 201020167086 CN201020167086 CN 201020167086 CN 201020167086 U CN201020167086 U CN 201020167086U CN 201654495 U CN201654495 U CN 201654495U
- Authority
- CN
- China
- Prior art keywords
- time service
- time
- circuit
- calibrating sequence
- microcontroller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a satellite time transfer integrative machine, which integrates a remote end and a local end used for satellite time transfer into a whole, and utilizes a cable to interact with time-transferred equipment for differential signals. Since the reliable transmitting distance of the differential signals is longer than that of single-end electric characteristic signals, even if the cable transmitting distance to the time-transferred equipment is longer than 10 m, efficient transmission of both timing signals and time information can be ensured. The utility model reduces timing signal errors caused by extension of the transmission distance through measurement of the cable time delay and time delay regulation of timing signals according to the measurement result, thereby ensuring accurate transmission of the timing signals; moreover, since the remote end and the local end are integrated into a whole, problems caused by the radio-frequency cable distance between the remote end and the local end exceeding 100 m are solved. Therefore, the utility model can ensure not only the convenience of engineering installation but also the reliability of time transfer.
Description
Technical field
The utility model relates to Service of Timing by Satellite, particularly a kind of satellite time service all-in-one.
Background technology
In modern communications, TT﹠C system, need between a plurality of equipment to keep the phase mutually synchronization for a long time between the time system, and synchronization accuracy need reach submicrosecond (us) level in addition nanosecond (ns) level.The time service scheme that can reach inferior us level or ns level synchronization accuracy at present comprises wired time dissemination system in ground and satellite time service dual mode.Wherein, the wired time service network in ground is generally local time service private network, but is subjected to network design zone and privately owned two aspects of network limit and can't be used widely; The satellite time service then has characteristics such as opening, covering is wide, precision is high, cost is low thereby is widely used.
Fig. 1 is simple and easy to show existing a kind of split type satellite time service equipment, it comprises the external gps antenna 110 of far-end and the GPS star card 120 of near-end at least, realizes that by radio-frequency cable 130 gps antenna 110 is to the radiofrequency signal transmission of GPS star card 120 and the power feed of 120 pairs of antennas 110 of GPS star card between far-end and the near-end.Wherein, the external gps antenna 110 of far-end comprises antenna feed 111, filtering circuit 112 of single mode etc. at least, the GPS star card 120 of near-end then has the positioning calculation function of single mode, in order to from calculate timing signal (1PPS) and temporal information (TOD) from positioning solution the satellite-signal of gps antenna 110, and timing signal and temporal information be sent to by time service equipment by single-end electrical characteristic signals 140, realize by the time service of time service equipment.
Yet, since the GPS star card 120 of near-end with by employing single-end electrical characteristic signals 140 between the time service equipment, promptly only be the signal of reference with ground, thereby disturbed for fear of the signal that transmits, can only be limited in 10 meters with the GPS star card 120 of near-end and by transmitting range between the time service equipment.
In addition, because the radio frequency cable can cause loss, thereby the radio-frequency cable length between far-end and the near-end can not be above 100 meters.Thereby transmitting range is no more than under the situation that radio frequency length of cable between 10 meters and far-end and the near-end is no more than 100 meters at the star card that need guarantee near-end simultaneously and between by time service equipment, can make the project installation difficulty comparatively of far-end and near-end; Otherwise,, then can cause split type satellite time service equipment to being reduced greatly and make owing to not satisfying the ideal operation condition by the time service reliability of time service equipment if when project installation, can not guarantee above-mentioned distance limit.
The utility model content
In view of this, the utility model provides a kind of satellite time service all-in-one, can expand satellite time service all-in-one and by the physical distance between the time service equipment.
A kind of satellite time service all-in-one that the utility model provides comprises:
Antenna, its receiving satellite signal;
Filtering circuit, it carries out filter circuit for filtering to the satellite-signal that antenna receives;
The positioning calculation circuit, it positions filtered satellite-signal and resolves and obtain timing signal and temporal information, and the timing signal that obtains is sent to delay compensation circuit and microcontroller;
Also comprise: microcontroller, metering circuit, delay compensation circuit, Differencing communication circuit, wherein:
Metering circuit, its by the Differencing communication circuit with by the mutual calibrating sequence of time service equipment, and observation sends the local terminal time of calibrating sequence and the local terminal time of reception of the calibrating sequence that fed back by time service equipment;
The delay compensation circuit, it is according to the time of metering circuit transmitting-receiving calibrating sequence and by the time of time service equipment transmitting-receiving calibrating sequence, the timing signal that the positioning calculation circuit obtains is calibrated, and the timing signal after will calibrating is sent to by time service equipment by the Differencing communication circuit;
Microcontroller, the timing signal that it obtains according to the positioning calculation circuit, the corresponding temporal information that the positioning calculation circuit is obtained by the Differencing communication circuit be sent to by time service equipment and make this temporal information and calibration after corresponding timing signal synchronized transmission, also by the Differencing communication circuit to the time that is received calibrating sequence by time service devices advertise metering circuit, and receive by the time of the opposite end of time service devices advertise transmitting-receiving calibrating sequence;
The Differencing communication circuit, it is by cable and by the mutual differential signal of time service equipment.
Microcontroller is further controlled the reiving/transmitting state of Differencing communication circuit, make the Differencing communication circuit with half-duplex mode by cable with by the mutual differential signal of time service equipment.
Positioning calculation circuit, metering circuit, delay compensation circuit, Differencing communication circuit are mounted on the microcontroller bus, and the positioning calculation circuit further links to each other with the delay compensation circuit with microcontroller respectively by direct-connected signal wire and by direct-connected signal wire timing signal is sent to microcontroller and delay compensation circuit.
Metering circuit comprises:
The calibrating sequence generator, it produces calibrating sequence and is sent to by time service equipment by the Differencing communication circuit;
The transmitting time observer, the local terminal transmitting time of the calibrating sequence that its observation calibrating sequence generator is produced also is sent to the delay compensation circuit by the microcontroller bus;
The time of reception observer, it receives calibrating sequence that is fed back by time service equipment and the local terminal time of reception of observing this calibrating sequence by the Differencing communication circuit, is sent to the delay compensation circuit by the microcontroller bus then.
Calibrating sequence generator and transmitting time observer by direct-connected signal wire link to each other, the time of reception observer links to each other by direct-connected signal wire with the Differencing communication circuit.
The Differencing communication circuit comprises:
Send selector switch, riches all the way in calibrating sequence that its selection calibrating sequence generator produces and the timing signal after the calibration of delay compensation circuit delivers to the first half-duplex difference transceiver;
The first half-duplex difference transceiver, it will send selector switch selected a tunnel by cable and be sent to by time service equipment in the mode of differential signal, also will be sent to the time of reception observer by the calibrating sequence that is fed back by time service equipment that cable receives;
First transceiver controller, it is mounted on the microcontroller bus, to be controlled by microcontroller, and control sends calibrating sequence that selector switch selects the calibrating sequence generator to produce, control sends selector switch and selects timing signal after the delay compensation circuit is calibrated when needs calibrates when needs are measured the cable time delay, and, control the reiving/transmitting state of the first half-duplex difference transceiver;
The second half-duplex difference transceiver, it will be sent to microcontroller by the aforementioned announcement by time service equipment that cable receives, and also will be sent to by time service equipment from the aforementioned announcement of the microcontroller mode with differential signal;
Second transceiver controller, it is mounted on the microcontroller bus, being controlled by microcontroller, and controls the reiving/transmitting state of the second half-duplex difference transceiver.
Described cable comprises:
1 power lead of the first half-duplex difference transceiver, 1 ground wire and 2 differential signal lines;
1 power lead of the second half-duplex difference transceiver, 1 ground wire and 2 differential signal lines.
First transceiver controller is time-delay triggering calibrating sequence generator or triggering transmitting time observer when needs are measured cable further.
Antenna is that multimode antenna, positioning calculation circuit are multimode positioning calculation circuit.
Send in one second after the corresponding timing signal of temporal information after calibration sends, with the corresponding timing signal synchronized transmission after guaranteeing this temporal information and calibrating.。
As seen from the above technical solution, far-end and near-end that the utility model will be used for the satellite time service become one, and utilize cable with by the mutual differential signal of time service equipment, because the reliable transmitting range of differential signal is greater than the single-end electrical characteristic signals, even if thereby and by the cable transmitting range between the time service equipment greater than 10 meters, also can guarantee effective transmission of timing signal and temporal information, simultaneously, the utility model is also by the measurement to the cable time delay, and according to the time delay calibration of measurement result to timing signal, the timing signal error that minimizing is caused by the expansion of transmitting range, thereby can also guarantee the accurate transmission of timing signal; And, because far-end and near-end become one, thereby do not exist radio-frequency cable length between far-end and the near-end above 100 meters all kinds of problems that caused yet.Thereby the utility model can be guaranteed the facility of project installation and the reliability of time service simultaneously.Further, the utility model can adopt the multiplexing cable of half-duplex mode.
Description of drawings
Fig. 1 is the easy structure synoptic diagram of a kind of split type satellite time service equipment of the prior art;
Fig. 2 is the exemplary configurations synoptic diagram of satellite time service all-in-one among the utility model embodiment;
Fig. 3 is a kind of concrete structure synoptic diagram of satellite time service all-in-one among the utility model embodiment;
Fig. 4 is the another kind of concrete structure synoptic diagram of satellite time service all-in-one among the utility model embodiment;
Fig. 5 is the exemplary process diagram of satellite time service all-in-one measuring process among the utility model embodiment;
Fig. 6 be among the utility model embodiment satellite time service all-in-one with by the mutual sequential chart of time service equipment in measuring process;
Fig. 7 is the exemplary process diagram of satellite time service all-in-one time service process among the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Far-end and near-end that present embodiment will be used for the satellite time service become one, and utilize cable with by the mutual differential signal of time service equipment, because the reliable transmitting range of differential signal is greater than the single-end electrical characteristic signals, even if thereby and by the cable transmitting range between the time service equipment greater than 10 meters, can guarantee that also timing signal and temporal information are (in the temporal information as herein described, except temporal information itself, can also further comprise for example navigator fix information, the information of control information or the like other dawns known to those skilled in the art) effective transmission, simultaneously, present embodiment is also by the measurement to the cable time delay, and according to the time delay calibration of measurement result to timing signal, the timing signal error that minimizing is caused by the expansion of transmitting range, thereby can also guarantee the accurate transmission of timing signal; And, because far-end and near-end become one, thereby do not exist radio-frequency cable length between far-end and the near-end above 100 meters all kinds of problems that caused yet.Thereby, can guarantee the facility of project installation and the reliability of time service simultaneously.
Fig. 2 is the exemplary configurations synoptic diagram of satellite time service all-in-one among the utility model embodiment.As shown in Figure 2, the satellite time service all-in-one in the present embodiment comprises; Antenna 202, filtering circuit 203, positioning calculation circuit 204, microcontroller 205, metering circuit 206, delay compensation circuit 207, Differencing communication circuit 208, wherein, positioning calculation circuit 204, metering circuit 206, delay compensation circuit 207, Differencing communication circuit 208 are articulated on microcontroller 205 buses, and are coupled with microcontroller 205.
Differencing communication circuit 208, it is by cable and by the mutual differential signal of time service equipment.
In addition, in satellite time service all-in-one as shown in Figure 1, the timing signal that obtains from positioning calculation circuit 204 for fear of delay compensation circuit 207 and microcontroller 205, because by the error that microcontroller 205 bus transfer produce, positioning calculation circuit 204 can further link to each other with delay compensation circuit 207 with microcontroller 205 respectively by direct-connected signal wire and by direct-connected signal wire timing signal is sent to microcontroller 205 and delay compensation circuit 207.
Preferably, in satellite time service all-in-one as shown in Figure 1, microcontroller 205 can further be controlled the reiving/transmitting state of Differencing communication circuit 208, make Differencing communication circuit 208 with half-duplex mode by cable with by the mutual differential signal of time service equipment, thereby realize multiplexing to cable.
In the practical application, in the satellite time service all-in-one as shown in Figure 1, other parts except antenna 202 all can be carried in same programmable logic chip or about two s' the programmable logic chip, certainly, also can every part realize by a programmable logic chip or corresponding physical circuit respectively.Except the physical entity implementation of plurality of optional, concrete logic circuit structure or physical circuit structure also are to have the plurality of optional mode.
Below, just described in detail at metering circuit and the concrete structure of Differencing communication circuit.
Fig. 3 is a kind of concrete structure synoptic diagram of satellite time service all-in-one among the utility model embodiment.In Fig. 3, metering circuit 306 comprises: calibrating sequence generator, transmitting time observer, time of reception observer.
The calibrating sequence generator, it produces calibrating sequence and is sent to by time service equipment by Differencing communication circuit 308;
The transmitting time observer, it links to each other by direct-connected signal wire with the calibrating sequence generator, is used to observe the local transmitting time of the calibrating sequence that the calibrating sequence generator produced and local transmitting time is sent to delay compensation circuit 307 by microcontroller 305 buses;
The time of reception observer, it links to each other by direct-connected signal wire with the Differencing communication circuit, is used to observe Differencing communication circuit 308 to receive the local reception time of the calibrating sequence that is fed back by time service equipment and the local reception time is sent to delay compensation circuit 307 by microcontroller 305 buses.
Send selector switch, riches all the way in calibrating sequence that its selection calibrating sequence generator produces and the timing signal after 307 calibrations of delay compensation circuit delivers to half-duplex difference transceiver 1;
Half-duplex difference transceiver 1, it links to each other by direct-connected signal wire with calibrating sequence generator, time of reception observer, transceiver controller 1, be used for to send selector switch selected a tunnel and be sent to by time service equipment, also will be sent to the time of reception observer by the calibrating sequence that is fed back by time service equipment that cable receives in the mode of differential signal by cable;
Transceiver controller 1, it is mounted on microcontroller 305 buses, to be controlled by microcontroller 305, and according to the instruction of microcontroller 305, time-delay sends selector switch by CNT3 control and selects calibrating sequence that the calibrating sequence generator produces and trigger the transmitting time observer by CNT3 when needs are measured cable, sends selector switch by CNT3 control and select timing signal after the delay compensation circuit is calibrated when needs calibrates; And, according to the instruction of microcontroller 305, by the reiving/transmitting state of CNT1 control half-duplex difference transceiver 1;
Half-duplex difference transceiver 2, it links to each other by direct-connected signal wire with microcontroller 305, transceiver controller 1, be used for and be sent to microcontroller 305 by what cable received by the announcement of time service equipment (promptly by the time of the opposite end of time service devices advertise transmitting-receiving calibrating sequence), also will be sent to by time service equipment from the announcement (promptly to the time that is received calibrating sequence by the local terminal of time service devices advertise) of microcontroller 305 mode with differential signal;
In addition, under the situation that adopts 8 core cables, 1 power lead of half-duplex difference transceiver 1,1 ground wire and 2 differential signal lines; 1 power lead of half-duplex difference transceiver 2,1 ground wire and 2 differential signal lines.
Fig. 4 is the another kind of concrete structure synoptic diagram of satellite time service all-in-one among the utility model embodiment.Concrete structure shown in Fig. 4 is than Fig. 3, only be the control mode of half-duplex difference transceiver 1, promptly in Fig. 4, transceiver controller 1, according to the instruction of microcontroller 305, time-delay sends the calibrating sequence of selector switch selection calibrating sequence generator generation and triggers the calibrating sequence generator by CNT3 by CNT3 control when needs measurement cable.
Principle based on above-mentioned structure is as shown in Figure 1 described, and above-mentioned as shown in Figure 3 and Figure 4 concrete structure, those skilled in the art can derive other structures of satellite time service all-in-one and by the required improvement of time service equipment, this paper is just given unnecessary details no longer one by one.
And for any particular circuit configurations, the principle of work of the satellite time service all-in-one in the present embodiment is all identical.Below, the basic functional principle of satellite time service all-in-one is elaborated.
Satellite time service all-in-one at first needs to carry out the complete machine initialization after complete machine powering starts.Concrete initialization procedure comprises:
The mode of operation of positioning calculation circuit is set, for example, is set to the single Big Dipper mode of operation of GPS of the associating navigation mode or the single mode of multimode;
The mode of operation of Differencing communication circuit is set, for example, at as Fig. 3 and particular circuit configurations as shown in Figure 4, half-duplex difference transceiver 1 pairing circuit 1 can be set and half-duplex difference transceiver 2 pairing circuits 2 are " half-duplex " mode of operation, perhaps the two one of be set to " half-duplex " mode of operation, another is set to " only sending " pattern.
After initialization finished, satellite time service all-in-one can begin operate as normal, specifically comprised measurement that is used for the time delay calibration and the normal time service operation of calibrating based on time delay.
Fig. 5 is the exemplary process diagram of satellite time service all-in-one measuring process among the utility model embodiment.As shown in Figure 5, the measurement that is used for time delay calibration comprises the steps:
Step 501, satellite time service all-in-one by cable with the mode of differential signal with by the mutual calibrating sequence of time service equipment, and observation sends the local terminal time of calibrating sequence and the local terminal time of reception of the calibrating sequence that fed back by time service equipment.
So far, the process that is used for the measurement of time delay calibration finishes.
The above-mentioned measuring process that is used for the time delay calibration can also be regarded satellite time service all-in-one and the negotiations process of being calibrated by time delay between the time service equipment as.
Fig. 6 be among the utility model embodiment satellite time service all-in-one with by the mutual sequential chart of time service equipment in measuring process.As shown in Figure 6, be example with as shown in Figure 3 and Figure 4 particular circuit configurations, suppose that the mode of operation of half-duplex difference transceiver 1 and half-duplex difference transceiver 2 is " half-duplex ", the measurement that is used for the time delay calibration comprises following reciprocal process:
The reiving/transmitting state that step 601, satellite time service all-in-one are provided with half-duplex difference transceiver 1 pairing circuit 1 and half-duplex difference transceiver 2 pairing circuits 2 is transmit status.
Step 602, the reiving/transmitting state that circuit 1, circuit 2 are set by time service equipment is accepting state.
Step 603, satellite time service all-in-one sends calibrating sequence to by time service equipment from circuit 1, and the observation local terminal sends the time of calibrating sequence.
Step 604, after satellite time service all-in-one transmission calibrating sequence was finished, the reiving/transmitting state that circuit 1 and circuit 2 are set was an accepting state.
Step 605, by the calibrating sequence of time service Equipment Inspection from the opposite end, and observation is received the local terminal time of calibrating sequence by time service equipment.
Step 606, behind calibrating sequence, the reiving/transmitting state of circuit 1 and circuit 2 is set to transmit status by the time service Equipment Inspection.
Step 607 is sent calibrating sequence to satellite time service all-in-one by time service equipment from circuit 1.
Step 608, the reiving/transmitting state that circuit 1 is set after being sent completely by time service equipment is an accepting state.
Step 609, satellite time service all-in-one detects the calibrating sequence from the opposite end.
After step 610, satellite time service all-in-one detected calibrating sequence from the opposite end, the reiving/transmitting state of circuit 1 was set to transmit status.
Step 611, the local reception time of the calibrating sequence that self is observed to satellite time service all-in-one announcement from circuit 2 by time service equipment.
Step 612 is announced local terminals send local terminal transmitting time from calibrating sequence to satellite time service all-in-one by time service equipment from circuit 2.
Step 613, the reiving/transmitting state that circuit 2 is set after being sent completely by time service equipment is an accepting state.
Step 614, the reiving/transmitting state of satellite time service all-in-one circuit 2 is set to transmit status.
The local terminal that step 615, satellite time service all-in-one receive the calibrating sequence that is fed back by time service equipment with local terminal was given by time service equipment by circuit 2 announcements between the time receiving.
Step 616, satellite time service all-in-one carries out compensation for calibrating errors according to the time of local terminal transmitting-receiving calibrating sequence and by the time of the opposite end of time service devices advertise transmitting-receiving calibrating sequence, is carried out compensation for calibrating errors by time service equipment according to the time of local terminal transmitting-receiving calibrating sequence.
After this alternatively, satellite time service all-in-one also can be to being sent end of test (EOT) message by time service equipment.
So far, this flow process finishes.
After above-mentioned flow process, satellite time service all-in-one gets final product normal time service pattern, and with the timing signal after the compensation to being carried out time service by time service equipment, the timing signal of output is arrived is alignd the time service of realization high precision by the markers of time service equipment input port with the satellite time source.
Fig. 7 is the exemplary process diagram of satellite time service all-in-one time service process among the utility model embodiment.As shown in Figure 5, the normal time service operation based on the time delay calibration comprises the following steps that circulation is carried out:
Step 702 is carried out filtering to the satellite-signal that receives;
Step 703 positions filtered satellite-signal and to resolve and to obtain timing signal and temporal information;
In this step synchronously, promptly be meant transmission in the corresponding timing signal of temporal information after calibration a second after sending.
So far, this flow process finishes.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model.All within spirit of the present utility model and principle, any modification of being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. satellite time service all-in-one comprises:
Antenna, its receiving satellite signal;
Filtering circuit, it carries out filter circuit for filtering to the satellite-signal that antenna receives;
The positioning calculation circuit, it positions filtered satellite-signal and resolves and obtain timing signal and temporal information, and the timing signal that obtains is sent to delay compensation circuit and microcontroller;
It is characterized in that, also comprise: microcontroller, metering circuit, delay compensation circuit, Differencing communication circuit, wherein:
Metering circuit, its by the Differencing communication circuit with by the mutual calibrating sequence of time service equipment, and observation sends the local terminal time of calibrating sequence and the local terminal time of reception of the calibrating sequence that fed back by time service equipment;
The delay compensation circuit, it is according to the time of metering circuit transmitting-receiving calibrating sequence and by the time of time service equipment transmitting-receiving calibrating sequence, the timing signal that the positioning calculation circuit obtains is calibrated, and the timing signal after will calibrating is sent to by time service equipment by the Differencing communication circuit;
Microcontroller, the timing signal that it obtains according to the positioning calculation circuit, the corresponding temporal information that the positioning calculation circuit is obtained by the Differencing communication circuit be sent to by time service equipment and make this temporal information and calibration after corresponding timing signal synchronized transmission, also by the Differencing communication circuit to the time that is received calibrating sequence by time service devices advertise metering circuit, and receive by the time of the opposite end of time service devices advertise transmitting-receiving calibrating sequence;
The Differencing communication circuit, it is by cable and by the mutual differential signal of time service equipment.
2. satellite time service all-in-one as claimed in claim 1 is characterized in that microcontroller is further controlled the reiving/transmitting state of Differencing communication circuit, make the Differencing communication circuit with half-duplex mode by cable with by the mutual differential signal of time service equipment.
3. satellite time service all-in-one as claimed in claim 1, it is characterized in that, positioning calculation circuit, metering circuit, delay compensation circuit, Differencing communication circuit are mounted on the microcontroller bus, and the positioning calculation circuit further links to each other with the delay compensation circuit with microcontroller respectively by direct-connected signal wire and by direct-connected signal wire timing signal is sent to microcontroller and delay compensation circuit.
4. satellite time service all-in-one as claimed in claim 3 is characterized in that metering circuit comprises:
The calibrating sequence generator, it produces calibrating sequence and is sent to by time service equipment by the Differencing communication circuit;
The transmitting time observer, the local terminal transmitting time of the calibrating sequence that its observation calibrating sequence generator is produced also is sent to the delay compensation circuit by the microcontroller bus;
The time of reception observer, it receives calibrating sequence that is fed back by time service equipment and the local terminal time of reception of observing this calibrating sequence by the Differencing communication circuit, is sent to the delay compensation circuit by the microcontroller bus then.
5. satellite time service all-in-one as claimed in claim 4 is characterized in that, calibrating sequence generator and transmitting time observer by direct-connected signal wire link to each other, the time of reception observer links to each other by direct-connected signal wire with the Differencing communication circuit.
6. as claim 4 or 5 described satellite time service all-in-ones, it is characterized in that the Differencing communication circuit comprises:
Send selector switch, riches all the way in calibrating sequence that its selection calibrating sequence generator produces and the timing signal after the calibration of delay compensation circuit delivers to the first half-duplex difference transceiver;
The first half-duplex difference transceiver, it will send selector switch selected a tunnel by cable and be sent to by time service equipment in the mode of differential signal, also will be sent to the time of reception observer by the calibrating sequence that is fed back by time service equipment that cable receives;
First transceiver controller, it is mounted on the microcontroller bus, to be controlled by microcontroller, and control sends calibrating sequence that selector switch selects the calibrating sequence generator to produce, control sends selector switch and selects timing signal after the delay compensation circuit is calibrated when needs calibrates when needs are measured the cable time delay, and, control the reiving/transmitting state of the first half-duplex difference transceiver;
The second half-duplex difference transceiver, it will be sent to microcontroller by the aforementioned announcement by time service equipment that cable receives, and also will be sent to by time service equipment from the aforementioned announcement of the microcontroller mode with differential signal;
Second transceiver controller, it is mounted on the microcontroller bus, being controlled by microcontroller, and controls the reiving/transmitting state of the second half-duplex difference transceiver.
7. satellite time service all-in-one as claimed in claim 6 is characterized in that described cable comprises:
1 power lead of the first half-duplex difference transceiver, 1 ground wire and 2 differential signal lines;
1 power lead of the second half-duplex difference transceiver, 1 ground wire and 2 differential signal lines.
8. satellite time service all-in-one as claimed in claim 6 is characterized in that, first transceiver controller is time-delay triggering calibrating sequence generator or triggering transmitting time observer when needs are measured cable further.
9. as each described satellite time service all-in-one in the claim 1 to 3, it is characterized in that antenna is that multimode antenna, positioning calculation circuit are multimode positioning calculation circuit.
10. as each described satellite time service all-in-one in the claim 1 to 3, it is characterized in that, send in one second after the corresponding timing signal of temporal information after calibration sends, with the corresponding timing signal synchronized transmission after guaranteeing this temporal information and calibrating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020167086 CN201654495U (en) | 2010-04-19 | 2010-04-19 | Satellite time transfer integrative machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020167086 CN201654495U (en) | 2010-04-19 | 2010-04-19 | Satellite time transfer integrative machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201654495U true CN201654495U (en) | 2010-11-24 |
Family
ID=43119738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020167086 Expired - Lifetime CN201654495U (en) | 2010-04-19 | 2010-04-19 | Satellite time transfer integrative machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201654495U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035607A (en) * | 2010-12-08 | 2011-04-27 | 大唐移动通信设备有限公司 | Method and device for sending calibration data |
| CN102221818A (en) * | 2011-05-24 | 2011-10-19 | 国网电力科学研究院 | Transmission method for converting pulse time signals into differential bus signals by GPS (global positioning system) |
| CN102221816A (en) * | 2010-04-19 | 2011-10-19 | 普天信息技术研究院有限公司 | Satellite time serving all-in-one machine and time serving method thereof |
| CN105589328A (en) * | 2014-10-22 | 2016-05-18 | 中国移动通信集团公司 | Time synchronization test method and apparatus, and time synchronization testing precision determination method and apparatus |
| CN107070567A (en) * | 2017-04-06 | 2017-08-18 | 中国科学院国家授时中心 | Time delay calibrating method between a kind of ground satellite station station based on pseudo satellite, pseudolite |
| US10874372B2 (en) | 2016-02-22 | 2020-12-29 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for controlling an X-ray tube filament |
| WO2021194864A1 (en) * | 2020-03-23 | 2021-09-30 | Caterpillar Inc. | Software-based time rollover detection |
-
2010
- 2010-04-19 CN CN 201020167086 patent/CN201654495U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221816A (en) * | 2010-04-19 | 2011-10-19 | 普天信息技术研究院有限公司 | Satellite time serving all-in-one machine and time serving method thereof |
| CN102221816B (en) * | 2010-04-19 | 2013-01-30 | 普天信息技术研究院有限公司 | Satellite time serving all-in-one machine and time serving method thereof |
| CN102035607A (en) * | 2010-12-08 | 2011-04-27 | 大唐移动通信设备有限公司 | Method and device for sending calibration data |
| CN102035607B (en) * | 2010-12-08 | 2013-04-03 | 大唐移动通信设备有限公司 | Method and device for sending calibration data |
| CN102221818A (en) * | 2011-05-24 | 2011-10-19 | 国网电力科学研究院 | Transmission method for converting pulse time signals into differential bus signals by GPS (global positioning system) |
| CN105589328A (en) * | 2014-10-22 | 2016-05-18 | 中国移动通信集团公司 | Time synchronization test method and apparatus, and time synchronization testing precision determination method and apparatus |
| US10874372B2 (en) | 2016-02-22 | 2020-12-29 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for controlling an X-ray tube filament |
| CN107070567A (en) * | 2017-04-06 | 2017-08-18 | 中国科学院国家授时中心 | Time delay calibrating method between a kind of ground satellite station station based on pseudo satellite, pseudolite |
| CN107070567B (en) * | 2017-04-06 | 2020-04-10 | 中国科学院国家授时中心 | Satellite ground station inter-station time delay calibration method based on pseudo satellite |
| WO2021194864A1 (en) * | 2020-03-23 | 2021-09-30 | Caterpillar Inc. | Software-based time rollover detection |
| US11709277B2 (en) | 2020-03-23 | 2023-07-25 | Caterpillar Inc. | Software-based time rollover detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102221816B (en) | Satellite time serving all-in-one machine and time serving method thereof | |
| CN201654495U (en) | Satellite time transfer integrative machine | |
| JP6411553B2 (en) | Base station and method for base station clock synchronization | |
| US20110050501A1 (en) | Location system and method with a fiber optic link | |
| US20120100801A1 (en) | Wireless base station and method for receiving signal of wireless base station | |
| Lee et al. | Long-range indoor hybrid localization system design with visible light communications and wireless network | |
| CN110221236A (en) | A kind of wireless calibration equipment of direct current instrument transformer and method of calibration based on GPRS communication | |
| CN101107578B (en) | Automation system | |
| CN104541407A (en) | Dual polarization antenna including isolation providing device | |
| CN106658712A (en) | Communication terminal positioning method system | |
| CN103141040B (en) | The time synchronized of network participants | |
| CN103728502A (en) | Antenna test method and system and wireless terminal | |
| CN207321256U (en) | A kind of repeater of scene LoRa radio spread spectrum communications | |
| CN102227099A (en) | Fiber access time service apparatus with time delay measuring system | |
| CN104781687A (en) | Systems and methods for phase determination over wireless link | |
| JP6674400B2 (en) | Time synchronization system and time synchronization method | |
| WO2009133996A1 (en) | System and method for measuring phase response characteristic of human-body in human-body communication | |
| CN103125086A (en) | Precise time synchronisation of network subscribers | |
| CN209949114U (en) | Time frequency device with multiple networking modes | |
| AU2019216879B2 (en) | Large-scale distributed timing, calibration and control system | |
| Hollós et al. | Improved reference clock connection interface for prototype IEEE 1588 master clocks | |
| CN117640052B (en) | Method and system for calibrating phase synchronization of software radio equipment | |
| CN210923963U (en) | Multi-antenna Beidou satellite receiver | |
| CN110417428B (en) | Distributed radio frequency electronic system and signal processing method | |
| CN215066941U (en) | Wireless synchronous sampling system for ground net shunt vectors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA POTEVIO CO., LTD. Free format text: FORMER OWNER: PUTIAN IT TECH INST CO., LTD. Effective date: 20130918 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130918 Address after: 100080, No. two, 2 street, Zhongguancun science and Technology Park, Beijing, Haidian District Patentee after: China Potevio Information Industry Co., Ltd. Address before: 100080 Beijing, Haidian, North Street, No. two, No. 6, No. Patentee before: Putian IT Tech Inst Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: PUTIAN IT TECH INST CO., LTD. Free format text: FORMER OWNER: CHINA POTEVIO CO., LTD. Effective date: 20131210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131210 Address after: 100080 Beijing, Haidian, North Street, No. two, No. 6, No. Patentee after: Putian IT Tech Inst Co., Ltd. Address before: 100080, No. two, 2 street, Zhongguancun science and Technology Park, Beijing, Haidian District Patentee before: China Potevio Information Industry Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |