CN105897431A - Novel non-polar differential pulse width communication protocol - Google Patents
Novel non-polar differential pulse width communication protocol Download PDFInfo
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- CN105897431A CN105897431A CN201410415978.4A CN201410415978A CN105897431A CN 105897431 A CN105897431 A CN 105897431A CN 201410415978 A CN201410415978 A CN 201410415978A CN 105897431 A CN105897431 A CN 105897431A
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- pulsewidth
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Abstract
The invention relates to a novel non-polar differential pulse width communication protocol. Downlink signals are represented by differential voltage pulse width signals, uplink signals are represented by current loop pulse width signals, and capability of long-distance communication and anti-interference capability are high.
Description
Art
The present invention relates to a kind of Novel electrodeless difference pulsewidth communications protocol, the communication being mainly used between initiator and digital electric detonator.
Background technology
At present, known communications protocol between initiator and digital electric detonator is RS485 communications protocol, or DC carrier wave communication agreement, the communication distance of above agreement is short, communication anti-interference is poor, it is easily caused digital electric detonator and produces the problems such as quick-fried, the most quick-fried, it is difficult to meet digital primer initiation system to communication security, the requirement of reliability
Summary of the invention
In order to overcome, conventional digital electric detonator detonation system communication distance is short, the problem of communication poor anti jamming capability, the present invention proposes a kind of Novel electrodeless difference pulsewidth communications protocol, this communications protocol is by descending use differential voltage pulse width signal, upward signal uses electric current loop pulse width signal, improves the capacity of resisting disturbance in communication process, increases communication distance, ensure that communication security, reliability, and then guarantee initiation process are not leaked quick-fried, the most quick-fried.
When the specific embodiments of this communications protocol is descending transmission signal, the beginning of transmission data is represented by upset bus voltage, in data transmission procedure, two bus voltages constantly overturn the pulse signal producing one fixed width, send first in data and last pulsewidth is normal width, change pulsewidth after first pulsewidth, if 0.5 times of normal width is exactly logical zero, is that 1.5 times of normal width are exactly logic 1.The pulse current that during up transmission signal, terminal makes bus produce one fixed width by the input impedance within controlling changes, thus realize signal feedback, send first in data and last pulsewidth is normal width, data transmission procedure is constantly be generated the current pulse signal of one fixed width, change pulsewidth after first pulsewidth is if 0.5 times of normal width is exactly logical zero, be 1.5 times of normal width be exactly logic 1, uplink data sending when, bus voltage is kept not overturn.
Accompanying drawing explanation
Fig. 1 is descending transmission data 0 × 55, and t1 is normal width；T2 is 0.5 times of normal width, represents logical zero；T3 is 1.5 times of normal width, represents logic 1.
Fig. 2 is uplink data sending 0 × 55, and t4 is normal width；T5 is 0.5 times of normal width, represents logical zero；T6 is 1.5 times of normal width, represents logic 1.
Claims (2)
1. a communications protocol, is characterized in that: when sending signal, is represented the beginning of transmission data, data by upset bus voltage
In transmitting procedure, voltage constantly inverts the pulse signal producing one fixed width, sends first in data and last pulsewidth is
Normal width, the change pulsewidth after first pulsewidth, if 0.5 times of normal width is exactly logical zero, is the 1.5 of normal width
It is exactly logic 1 again.
2. a communications protocol, is characterized in that: during up transmission signal, terminal reaches to make bus produce by the input impedance within controlling
Pulse current changes, thus realizes signal feedback.Send first in data and last pulsewidth is normal width, data
Being constantly be generated the current pulse signal of one fixed width in transmitting procedure, change pulsewidth after first pulsewidth is if standard width
0.5 times of degree is exactly logical zero, is that 1.5 times of normal width are exactly logic 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415978.4A CN105897431A (en) | 2014-08-20 | 2014-08-20 | Novel non-polar differential pulse width communication protocol |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410415978.4A CN105897431A (en) | 2014-08-20 | 2014-08-20 | Novel non-polar differential pulse width communication protocol |
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| CN105897431A true CN105897431A (en) | 2016-08-24 |
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| CN201410415978.4A Pending CN105897431A (en) | 2014-08-20 | 2014-08-20 | Novel non-polar differential pulse width communication protocol |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109587022A (en) * | 2019-01-31 | 2019-04-05 | 华夏世昌(北京)科技有限公司 | A kind of communication protocol and application of igniting driving bus IDBUS |
| CN109639366A (en) * | 2019-01-31 | 2019-04-16 | 华夏世昌(北京)科技有限公司 | Signal pulsewidth modulation and demodulation method based on dual-wire bus communication |
| CN111739276A (en) * | 2020-07-02 | 2020-10-02 | 上海赞芯电子科技有限公司 | Communication protocol and communication method for electronic fuse |
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| US20050279238A1 (en) * | 2003-07-15 | 2005-12-22 | Jennings David T Iii | Current modulation-based communication from slave device |
| US20060162601A1 (en) * | 2003-07-15 | 2006-07-27 | Special Devices, Inc. | Device and system for identifying an unknow or unmarked slave device such as in an electronic blasting system |
| US20090283004A1 (en) * | 2003-07-15 | 2009-11-19 | Gimtong Teowee | Constant-current, rail-voltage regulated charging electronic detonator |
| CN102279834A (en) * | 2011-06-10 | 2011-12-14 | 深圳市骏普科技开发有限公司 | Serial communication method |
| CN102519327A (en) * | 2011-12-09 | 2012-06-27 | 银庆宇 | Method and device for connecting and controlling electronic detonator priming device and electronic detonator |
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2014
- 2014-08-20 CN CN201410415978.4A patent/CN105897431A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050011389A1 (en) * | 2003-07-15 | 2005-01-20 | Gimtong Teowee | Dynamic baselining in current modulation-based communication |
| US20050279238A1 (en) * | 2003-07-15 | 2005-12-22 | Jennings David T Iii | Current modulation-based communication from slave device |
| US20060162601A1 (en) * | 2003-07-15 | 2006-07-27 | Special Devices, Inc. | Device and system for identifying an unknow or unmarked slave device such as in an electronic blasting system |
| US20090283004A1 (en) * | 2003-07-15 | 2009-11-19 | Gimtong Teowee | Constant-current, rail-voltage regulated charging electronic detonator |
| CN102279834A (en) * | 2011-06-10 | 2011-12-14 | 深圳市骏普科技开发有限公司 | Serial communication method |
| CN102519327A (en) * | 2011-12-09 | 2012-06-27 | 银庆宇 | Method and device for connecting and controlling electronic detonator priming device and electronic detonator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109587022A (en) * | 2019-01-31 | 2019-04-05 | 华夏世昌(北京)科技有限公司 | A kind of communication protocol and application of igniting driving bus IDBUS |
| CN109639366A (en) * | 2019-01-31 | 2019-04-16 | 华夏世昌(北京)科技有限公司 | Signal pulsewidth modulation and demodulation method based on dual-wire bus communication |
| CN109587022B (en) * | 2019-01-31 | 2021-11-23 | 华夏世昌(北京)科技有限公司 | Communication method of ignition drive bus IDBUS |
| CN109639366B (en) * | 2019-01-31 | 2022-01-28 | 华夏世昌(北京)科技有限公司 | Signal pulse width modulation and demodulation method based on two-wire bus communication |
| CN111739276A (en) * | 2020-07-02 | 2020-10-02 | 上海赞芯电子科技有限公司 | Communication protocol and communication method for electronic fuse |
| CN111739276B (en) * | 2020-07-02 | 2021-08-31 | 上海赞芯电子科技有限公司 | Communication protocol and communication method for electronic fuse |
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