CN101008829A - Low frequency time code BPC code receiver and communication method therefor - Google Patents
Low frequency time code BPC code receiver and communication method therefor Download PDFInfo
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- CN101008829A CN101008829A CN 200610041734 CN200610041734A CN101008829A CN 101008829 A CN101008829 A CN 101008829A CN 200610041734 CN200610041734 CN 200610041734 CN 200610041734 A CN200610041734 A CN 200610041734A CN 101008829 A CN101008829 A CN 101008829A
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Abstract
This invention relates to one low frequency time codes BPC receiver machine and its communication method, which comprises the following technique: one low frequency time codes BPC receiver comprises receive antenna, receive process chip and MCU. This invention method uses certain interface output type and certain output code form to receive signal area and to add property codes to facilitate user receive and compare process.
Description
Affiliated technical field:
The present invention relates to communication technique field, be specifically related to a kind of low-frequency time-code BPC sign indicating number receiver and communication means thereof.
Background technology:
The wireless time service of low frequency (long wave), because the propagation of long wave electric wave has (earthwave) propagation characteristic along the face of land preferably, simultaneously, ionospheric reflection also can be returned earth surface with long wave time signal refraction (sky wave) in the atmosphere, therefore area coverage is very big, is widely used.But in view of the different formed interference of world propagation path and topography and geomorphology and the influence of blocking, the problem that prior art exists is: because of electromagnetic intensity will have than big-difference with the difference of position and direction, cause some local received signal difficulties.
Summary of the invention:
The present invention will provide a kind of low-frequency time-code BPC sign indicating number receiver and communication means thereof, to overcome the problem of some local received signal difficulties that prior art exists.
For overcoming the problem that prior art exists, technical scheme of the present invention is:
A kind of low-frequency time-code BPC sign indicating number receiver is made up of receiving antenna, reception process chip and MCU.
Above-mentioned reception process chip is connected with forcing the reception button.
The communication means of the said equipment:
(1) way of output:
Low-frequency time-code (BPC sign indicating number) modular receiver outputting standard temporal information and pulse per second (PPS) (standard Transistor-Transistor Logic level), module by signal receive with transmission and hocket;
After powering on, module is the entering signal accepting state at first, after signal finishes receiving, will change transmission over to, and signal reception time is 2～10min;
Still can not receive signal as 10min, also withdraw to receive changing transmission over to automatically.As select to force to receive, then receive till receiving signal always;
During transmission, MCU sends temporal information according to the output encoder form, sends pulse per second (PPS) simultaneously, and transmitting time is 10min-20min, is sent completely and promptly changes the signal reception over to;
(2) output encoder form:
By the temporal information of a signal wire serial output BCD coded format, one second binary-coded decimal.
Output information: year (0～99), month (1～12), day (1～31), week (1～7), the time (0～23) divide (0～59), do not receive hourage (0～9).Represent a binary-coded decimal (0～9), 20 seconds one frames with high-low level width in a second;
Information representation: 0～9:100ms～1000ms low level.
Compared with prior art, advantage of the present invention is: method of the present invention is by a kind of interface way of output and a kind of specific output encoder form, because the present invention can selectively place the effectively place of received signal, add feature coding again, make the user can just receive and compare juggling, be easy to obtain correct BPC sign indicating number temporal information, overcome the difficult problem of low-frequency time-code (BPC sign indicating number) receiver in certain areas reception difference.
Description of drawings:
Accompanying drawing is the structural representation of low-frequency time-code (BPC sign indicating number) receiver.
Embodiment:
A kind of low-frequency time-code BPC sign indicating number receiver referring to accompanying drawing, is made up of receiving antenna, reception process chip and MCU, and said reception process chip is connected with forcing the reception button.
Place the place that can effectively receive the wireless time signal of low frequency (long wave) to receive in this device.Wherein, receiving antenna receives BPC long wave lf time-code signal, after receiving chip amplification, demodulation, comparison, sends into MCU.MCU is reduced to temporal information with the decoding of BPC coded message, is that client computer is sent standard Beijing time information (year, month, day, hour, min, week etc.) according to communications protocol again.
The concrete means of communication are:
(1) way of output:
Low-frequency time-code (BPC sign indicating number) modular receiver outputting standard temporal information and pulse per second (PPS) (standard Transistor-Transistor Logic level), module by signal receive with transmission and hocket;
After powering on, module is the entering signal accepting state at first, after signal finishes receiving, will change transmission over to, and signal reception time is 2～10min.
Still can not receive signal as 10min, also withdraw to receive changing transmission over to automatically.As receiving (by forcing to receive button), then receive till receiving signal for forcing always.
During transmission, MCU sends temporal information according to the output encoder form, sends pulse per second (PPS) simultaneously.Transmitting time is 10min.Be sent completely and promptly change the signal reception over to.
(2) output encoder form:
Temporal information by a signal wire serial output BCD coded format.One second binary-coded decimal.
Output information: year (0～99), month (1～12), day (1～31), week (1～7), the time (0～23), divide (0～59), do not receive hourage (0～9).Represent a binary-coded decimal (0～9), 20 seconds one frames with high-low level width in a second.
Information representation: 0～9:100ms～1000ms low level.
Claims (3)
1, a kind of low-frequency time-code BPC sign indicating number receiver is made up of receiving antenna, reception process chip and MCU.
2, a kind of low-frequency time-code BPC sign indicating number receiver as claimed in claim 1 is characterized in that: described reception process chip is connected with forcing the reception button.
3, a kind of means of communication of using low-frequency time-code BPC sign indicating number receiver as claimed in claim 1 is characterized in that:
(1) way of output:
Low-frequency time-code (BPC sign indicating number) modular receiver outputting standard temporal information and pulse per second (PPS) (standard Transistor-Transistor Logic level), module by signal receive with transmission and hocket;
After powering on, module is the entering signal accepting state at first, after signal finishes receiving, will change transmission over to, and signal reception time is 2～10min;
Still can not receive signal as 10min, also withdraw to receive changing transmission over to automatically.As select to force to receive, then receive till receiving signal always;
During transmission, MCU sends temporal information according to the output encoder form, sends pulse per second (PPS) simultaneously, and transmitting time is 10min-20min, is sent completely and promptly changes the signal reception over to;
(2) output encoder form:
By the temporal information of a signal wire serial output BCD coded format, one second binary-coded decimal.
Output information: year (0～99), month (1～12), day (1～31), week (1～7), the time (0～23) divide (0～59), do not receive hourage (0～9).Represent a binary-coded decimal (0～9), 20 seconds one frames with high-low level width in a second;
Information representation: 0～9:100ms～1000ms low level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610041734 CN101008829A (en) | 2006-01-26 | 2006-01-26 | Low frequency time code BPC code receiver and communication method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610041734 CN101008829A (en) | 2006-01-26 | 2006-01-26 | Low frequency time code BPC code receiver and communication method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101008829A true CN101008829A (en) | 2007-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610041734 Pending CN101008829A (en) | 2006-01-26 | 2006-01-26 | Low frequency time code BPC code receiver and communication method therefor |
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| Country | Link |
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| CN (1) | CN101008829A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940523A (en) * | 2017-03-28 | 2017-07-11 | 北京智芯微电子科技有限公司 | A kind of time service device based on low-frequency time-code technology |
| CN113992287A (en) * | 2021-10-26 | 2022-01-28 | 封开低频时码授时台 | Low-frequency time code timing signal carrier frequency optimization method and system |
-
2006
- 2006-01-26 CN CN 200610041734 patent/CN101008829A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940523A (en) * | 2017-03-28 | 2017-07-11 | 北京智芯微电子科技有限公司 | A kind of time service device based on low-frequency time-code technology |
| CN113992287A (en) * | 2021-10-26 | 2022-01-28 | 封开低频时码授时台 | Low-frequency time code timing signal carrier frequency optimization method and system |
| CN113992287B (en) * | 2021-10-26 | 2024-05-24 | 封开低频时码授时台 | Low-frequency time code time service signal carrier frequency selection method and system |
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Open date: 20070801 |