CN111780632B - Method and device for adjusting communication rate of electronic detonator - Google Patents
Method and device for adjusting communication rate of electronic detonator Download PDFInfo
- Publication number
- CN111780632B CN111780632B CN202010597918.4A CN202010597918A CN111780632B CN 111780632 B CN111780632 B CN 111780632B CN 202010597918 A CN202010597918 A CN 202010597918A CN 111780632 B CN111780632 B CN 111780632B
- Authority
- CN
- China
- Prior art keywords
- electronic detonator
- communication rate
- adjusting
- chip
- spacing
- 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.)
- Active
Links
- 230000006854 communication Effects 0.000 title claims abstract description 50
- 238000004891 communication Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003999 initiator Substances 0.000 claims abstract description 36
- 230000000875 corresponding effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005474 detonation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C21/00—Checking fuzes; Testing fuzes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The application relates to the technical field of electronic detonators, in particular to a method and a device for adjusting communication rate of an electronic detonator. The method comprises the following steps: the electronic detonator chip receives a standard clock sent by an exploder; adjusting parameters according to a standard clock; and demodulating according to the adjusted parameters to obtain a data instruction. The parameters include bit width, bit spacing, byte spacing, and instruction spacing. According to the technical scheme, the communication rate of the electronic detonator is adjusted, and the problem that the communication rate between the initiator and the chip of the electronic detonator cannot be flexibly adjusted in the prior art is solved.
Description
Technical Field
The application relates to the technical field of electronic detonators, in particular to a method and a device for adjusting communication rate of an electronic detonator.
Background
Electronic detonators are the product of the desired combination of detonator and integrated circuit technology, and have been widely used today and in place of conventional detonating systems in many applications. The detonator comprises an exploder and an electronic detonator chip; the exploder is connected with one to hundreds of unequal electronic detonator chips through a pair of twisted wires, modulates data to a high-frequency signal according to a certain protocol, and transmits the data to the electronic detonator chip through the twisted pair wires. The electronic detonator chip controls the detonation according to the parameters carried in the data sent by the detonator; in the field of factory production and manufacturing of electronic detonators, multiple factory inspections are required before an electronic detonator chip is applied to an explosion site. Different lengths of stranded wire can be used according to different explosion field requirements. Different testing and use scenarios require adjustment of communication rate to meet the requirements of shortening testing time and improving communication stability. At present, the communication rate between the electronic detonator initiator and the electronic detonator chip is fixed, and a new method for adjusting the communication rate between the electronic detonator initiator and the electronic detonator at any time is needed to be proposed.
Disclosure of Invention
Therefore, the embodiment of the application provides a method and a device for adjusting the communication rate of an electronic detonator, which are used for solving the problem that the communication rate between an initiator and a detonator chip cannot be flexibly adjusted in the prior art.
In order to achieve the above object, the embodiment of the present application provides the following technical solutions:
according to a first aspect of an embodiment of the present application, a method for adjusting a communication rate of an electronic detonator includes:
the electronic detonator chip receives a standard clock sent by an exploder;
adjusting parameters according to a standard clock;
and demodulating according to the adjusted parameters to obtain a data instruction.
Further, the parameters include one or more of the following: bit width, bit spacing, byte spacing, instruction spacing.
Further, adjusting the bit width according to the standard clock includes:
the electronic detonator chip receives a standard clock sent after the detonator is powered on, counts the standard clock, and stores a counting result in a register;
and shifting the count in the register according to a preset shifting rule to obtain an adjusted parameter.
According to a second aspect of an embodiment of the present application, an apparatus for adjusting a communication rate of an electronic detonator, the apparatus includes: a demodulation parameter self-adaption module and a data demodulation module;
the demodulation parameter self-adaptation module is used for adjusting parameters according to a standard clock sent by an exploder and received by the electronic detonator chip;
and sending the adjusted parameters to the data demodulation module;
the data demodulation module is used for receiving the adjusted parameters; and demodulating according to the adjusted parameters to obtain a data instruction.
Further, the parameters include one or more of the following: bit width, bit spacing, byte spacing, instruction spacing.
Further, the demodulation parameter self-adapting module is also used for counting the standard clock sent after the power-on of the exploder received by the electronic detonator chip, storing the counting result in a register,
and shifting the count in the register according to a preset shifting rule to obtain an adjusted parameter.
The embodiment of the application has the following advantages: the electronic detonator chip receives a standard clock sent by an exploder; adjusting parameters according to a standard clock; and demodulating according to the adjusted parameters to obtain a data instruction. Thereby achieving adjustment of the communication rate.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the application, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present application, should fall within the ambit of the technical disclosure.
Fig. 1 is a schematic view of an electronic detonator scene provided in an embodiment of the application;
fig. 2 is a flowchart of a method for adjusting a communication rate of an electronic detonator according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an adjusting device for communication rate of an electronic detonator according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of another device for adjusting communication rate of an electronic detonator according to an embodiment of the present application.
Detailed Description
Other advantages and advantages of the present application will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Electronic detonators are the product of the desired combination of detonator and integrated circuit technology, and have been widely used today and in place of conventional detonating systems in many applications. Compared with the prior detonating tube, the device has the characteristics of high-precision delay, safety control, reliable detonation and the like. The electronic detonator mainly comprises an exploder and a chip; referring to the schematic diagram of the connection relationship between the circuit detonator control host (initiator) and the electronic detonator (chip) shown in fig. 1; the circuit detonator control host is hereinafter referred to as an initiator; the electronic detonator is called an electronic detonator chip;
the initiator is connected to one to several hundred unequal electronic detonator chips by a pair of twisted wires as shown in figure 1. The initiator modulates data onto the high frequency signal according to a certain protocol and transmits the data to the electronic detonator end chip through the twisted pair. Each electronic detonator chip has a unique address, and the exploder sets an explosion parameter for each electronic detonator chip according to the address to control explosion of the detonator. The communication specification requires the clock precision of the electronic detonator chip to be within + -10%. With the current semiconductor technology level, the uncalibrated clock accuracy of the chip is generally within ±30. Therefore, a specially designed clock source is needed or the clock of the existing chip is calibrated, so that cost is wasted and complexity is increased.
Based on the above, the application provides a method for adjusting the communication rate of an electronic detonator, which is shown in a flow chart of a method for adjusting the communication rate of the electronic detonator shown in fig. 2; the method comprises the following steps:
step S101, an electronic detonator chip receives a standard clock sent by an initiator;
step S102, adjusting parameters according to a standard clock;
wherein the parameters include one or more of the following: bit width, bit spacing, byte spacing, instruction spacing.
Step S103, demodulating according to the obtained adjusted parameters to obtain a data instruction.
According to the technical scheme, the electronic detonator chip can automatically adjust signal demodulation parameters according to standard pulses sent by the exploder so as to meet the requirements of different communication rates, and the clock precision of the electronic detonator chip is not depended.
In one embodiment, when the parameters are adjusted according to the standard clock, the following steps are taken:
the electronic detonator chip receives a standard clock sent after the detonator is powered on, counts the standard clock, and stores a counting result in a register;
and shifting the count in the register according to a preset shifting rule to obtain an adjusted parameter.
The shift rule is:
the electronic detonator chip calculates the communication rate of the detonator according to the received standard clock;
if the calculated communication rate of the initiator is N times the standard communication rate of the initiator;
determining that the bit width becomes 1/N of the standard bit width;
the Byte spacing becomes 1/N of the standard Byte spacing;
the bit pitch becomes 1/N of the standard bit pitch.
The following is described by taking bit width as an example:
if the clock frequency of the electronic detonator is 200KHz; the communication frequency is 2Kbps, and the width of one bit is 500 mu S; the clock period is 1ms; the initiator transmits a standard clock with the time length of 1ms to the electronic detonator chip at the frequency corresponding to the clock period of 1ms;
the electronic detonator chip counts the pulse of the standard clock of 1ms; and storing the count result in a register; the value of the register is ot_reg=200 (00C 8H);
if the clock frequency of the electronic detonator is 400KHz; the communication frequency is 4Kbps, and the width of one bit is 250 mu S; the initiator adjusts the clock period to 0.5ms;
the initiator transmits a standard clock with the time length of 1ms to the electronic detonator chip at the frequency corresponding to the clock period of 0.5ms;
the electronic detonator chip counts the pulses of the received standard clock; and storing the count result in a register; the register reading is OT reg=400 (0190H);
if the clock frequency of the electronic detonator is 100KHz; the communication frequency is 1Kbps, and the width of one bit is 1000 mu S; the initiator adjusts the clock period to 2ms; the initiator transmits a standard clock with the time length of 1ms to the electronic detonator chip at the frequency corresponding to the clock period of 2ms;
the electronic detonator chip counts the pulses of the received standard clock; and storing the count result in a register; the value ot_reg=100 of the register (64).
In the following, in detail, the calculation of BIT width (bit_wd) is listed, illustrating how the demodulation parameters are calculated by means of standard pulses sent by the initiator:
assume that the clock frequency of the electronic detonator is 200KHz and the communication frequency is 2Kbps. One bit width is 500 mus. The uncalibrated clock precision has an error of +/-30%, and the calculated bit width of the detonator chip is 350 mu S-650 mu S.
In this embodiment, the demodulation parameter adjustment module sets up a 16-bit register ot_reg.
Taking the communication rate of 2Kbps as an example, the detonator sends out a standard clock with the time length of 1ms to the detonator chip after being powered on.
The detonator chip counts the standard clock by using the local clock and stores the counting result in OT_reg. For example:
the clock frequency of the initiator is osc=200k, the register reading ot_reg=200 (00C 8H);
the clock frequency of the initiator is osc=400K, the register reading ot_reg=400 (0190H);
the initiator has a clock frequency osc=100K and a register reading ot_reg=100 (64).
The OT_reg value can be obtained by pulse counting of a standard clock of 1ms sent by an exploder;
wherein,,
400 (0190H) to a binary number 0000 0001 1001 0000;
200 (00C 8H) to binary 0000 0000 1100 1000;
100 (64) to binary 0000 0000 0110 0100.
It can be seen that the light source is,
100 (64) to 200 (00C 8H), only the binary number corresponding to 100 (64) needs to be shifted to the left by 1 bit;
changing 200 (00C 8H) into 400 (0190H) and continuing to move the binary number corresponding to 200 (00C 8H) leftwards by 1 bit;
it can be seen that the bit width required for demodulation is independent of the clock frequency of the detonator chip.
If the initiator wants to increase the communication frequency, for example, to 4Kbps, the bit width is 250 mus. The initiator need only change the standard clock period to 500 mus. The value OT reg corresponding to the register in the detonator chip is also automatically halved.
Similarly, if the initiator needs to reduce the communication frequency, for example, the communication frequency is reduced to 1Kbps, the standard clock period is changed to 2ms, and the value OT_reg corresponding to the register in the detonator chip is automatically doubled.
The technical scheme of the application is particularly suitable for manufacturing factories of electronic detonators; after the electronic detonator is produced and manufactured, the electronic detonator needs to be tested, and at the factory test end, single detonator communication is adopted, the stranded wires are extremely short, the surrounding environment is free from noise and electromagnetic interference, the communication frequency is improved, the test time can be greatly shortened, and the test coverage rate is increased.
According to the technical scheme, the communication rate is adjustable on the premise of almost not increasing the cost and is irrelevant to the clock frequency of the detonator chip, so that the production cost and the use convenience are greatly reduced.
Based on the same inventive concept, the application also provides an adjusting device of the communication rate of the electronic detonator, which is applied to the electronic detonator chip, and the structural schematic diagram of the adjusting device of the communication rate of the electronic detonator shown in the figure 3 is referred to;
the device comprises: a demodulation parameter adaptation module 21 and a data demodulation module 22;
the demodulation parameter self-adaptation module 21 is used for adjusting parameters according to a standard clock sent by an exploder and received by the electronic detonator chip; the parameters include one or more of the following: bit width, bit spacing, byte spacing, instruction spacing.
And sending the adjusted parameters to the data demodulation module;
the data demodulation module 22 is configured to receive the adjusted parameters; and demodulating according to the adjusted parameters to obtain a data instruction.
According to the electronic detonator chip, the clock sent by the initiator is received, and the electronic detonator chip can automatically adjust signal demodulation parameters according to standard pulses sent by the initiator so as to meet the requirements of different communication rates, and the clock precision of the electronic detonator chip is not dependent.
In one embodiment, referring to fig. 4, another schematic structural diagram of an electronic detonator communication rate adjustment device is shown; the apparatus further comprises: a signal demodulation circuit block 23 and a data instruction processing block 24;
the front end signal demodulation circuit module 23 of the electronic detonator demodulates the high-frequency and high-voltage signals sent by the exploder into digital signals which can be identified by the data demodulation module. The data demodulation module restores the digital signals into data and instructions according to a certain protocol.
The data instruction processing module 24 makes corresponding actions according to the received instructions and data.
After the initiator is powered up and stabilized, a series of standard pulses are emitted. After the electronic detonator chip receives the standard pulse, the demodulation parameter self-adaptive module calculates corresponding demodulation parameters and transmits the corresponding demodulation parameters to the data demodulation module. After the data demodulation module completes parameter configuration, the data can be demodulated normally and transmitted to the data and instruction processing module. The demodulation parameter self-adapting module is only configured after power-on and is not configurable in the communication process. The detonator chip can work normally only after the demodulation parameter configuration is successful.
In one embodiment, the demodulation parameter adaptive module 21 is further configured to count a standard clock sent after the initiator received by the electronic detonator chip is powered on, and store the count result in a register, where the following steps are specifically adopted:
if the clock frequency of the electronic detonator is 200KHz; the communication frequency is 2Kbps, and the width of one bit is 500 mu S; the clock period is 1ms; the initiator transmits a standard clock with the time length of 1ms to the electronic detonator chip at the frequency corresponding to the clock period of 1ms;
the demodulation parameter self-adaptive module counts pulses of the received standard clock of 1ms; and storing the count result in a register; the value of the register is ot_reg=200 (00C 8H);
if the clock frequency of the electronic detonator is 400KHz; the communication frequency is 4Kbps, and the width of one bit is 250 mu S; the initiator adjusts the clock period to 0.5ms;
the initiator transmits a standard clock with the time length of 1ms to the electronic detonator chip at the frequency corresponding to the clock period of 0.5ms;
the demodulation parameter self-adaptive module counts pulses of the received standard clock; and storing the count result in a register; the register reading is OT reg=400 (0190H);
if the clock frequency of the electronic detonator is 100KHz; the communication frequency is 1Kbps, and the width of one bit is 1000 mu S; the initiator adjusts the clock period to 2ms; the initiator transmits a standard clock with the time length of 1ms to the electronic detonator chip at the frequency corresponding to the clock period of 2ms;
the demodulation parameter self-adaptive module counts pulses of the received standard clock; and storing the count result in a register; the value ot_reg=100 of the register (64).
The electronic detonator chip is provided with a corresponding mark; and the initiator sends a standard clock to the electronic detonator chip according to the corresponding identification of the electronic detonator chip.
The number of the electronic detonator chips is multiple, and each electronic detonator chip is provided with an identification ID for distinguishing; and the initiator determines to send a standard clock to each electronic detonator chip according to the identification ID of the electronic detonator chip.
While the application has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the application and are intended to be within the scope of the application as claimed.
Claims (4)
1. The method for adjusting the communication rate of the electronic detonator is characterized by comprising the following steps of:
the electronic detonator chip receives a standard clock sent by an exploder;
adjusting the parameters according to the standard clock, including:
counting the standard clock to obtain a counting result; storing the count result in a register; shifting the counting result in the register according to a preset shifting rule to obtain an adjusted parameter;
demodulating according to the adjusted parameters to obtain a data instruction;
and the communication rate between the initiator and the electronic detonator chip is changed by adjusting the period of the standard clock.
2. The method for adjusting communication rate of electronic detonator of claim 1 wherein,
the parameters include one or more of the following: bit width, bit spacing, byte spacing, instruction spacing.
3. An adjusting device for the communication rate of an electronic detonator is characterized in that the adjusting device is applied to an electronic detonator chip,
the device comprises: a demodulation parameter self-adaption module and a data demodulation module;
the demodulation parameter self-adaptation module is used for counting a standard clock which is sent by the electronic detonator chip after the electronic detonator chip receives the power-on of the detonator, and obtaining a counting result; storing the count result in a register; shifting the counting result in the register according to a preset shifting rule to obtain an adjusted parameter;
and sending the adjusted parameters to the data demodulation module;
the data demodulation module is used for receiving the adjusted parameters; demodulating according to the adjusted parameters to obtain a data instruction;
and the communication rate between the initiator and the electronic detonator chip is changed by adjusting the period of the standard clock.
4. The device for adjusting communication rate of electronic detonator of claim 3 wherein,
the parameters include one or more of the following: bit width, bit spacing, byte spacing, instruction spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010597918.4A CN111780632B (en) | 2020-06-28 | 2020-06-28 | Method and device for adjusting communication rate of electronic detonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010597918.4A CN111780632B (en) | 2020-06-28 | 2020-06-28 | Method and device for adjusting communication rate of electronic detonator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111780632A CN111780632A (en) | 2020-10-16 |
| CN111780632B true CN111780632B (en) | 2023-10-24 |
Family
ID=72760687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010597918.4A Active CN111780632B (en) | 2020-06-28 | 2020-06-28 | Method and device for adjusting communication rate of electronic detonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111780632B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115235305B (en) * | 2022-07-29 | 2023-08-18 | 上海芯飏科技有限公司 | Electronic detonator communication rate self-adaptive adjustment method and system suitable for shallow hole blasting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999014865A1 (en) * | 1997-09-15 | 1999-03-25 | Diamond Multimedia Systems, Inc. | System and method for data rate adjustments in modem communications |
| CN101650416A (en) * | 2009-07-08 | 2010-02-17 | 无锡爱睿芯电子有限公司 | Method and device for receiving GPS and clock correcting method |
| CN101655339A (en) * | 2008-12-02 | 2010-02-24 | 北京铱钵隆芯科技有限责任公司 | Delay time setting process of electronic detonator explosion initiating device |
| CN104579551A (en) * | 2014-09-03 | 2015-04-29 | 贵州久联民爆器材发展股份有限公司 | Method for adjusting traffic rate of electronic detonator |
| CN105698617A (en) * | 2016-01-25 | 2016-06-22 | 北京理工大学 | Electronic detonator controlled through detonation controller and control method thereof |
-
2020
- 2020-06-28 CN CN202010597918.4A patent/CN111780632B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999014865A1 (en) * | 1997-09-15 | 1999-03-25 | Diamond Multimedia Systems, Inc. | System and method for data rate adjustments in modem communications |
| CN101655339A (en) * | 2008-12-02 | 2010-02-24 | 北京铱钵隆芯科技有限责任公司 | Delay time setting process of electronic detonator explosion initiating device |
| CN101650416A (en) * | 2009-07-08 | 2010-02-17 | 无锡爱睿芯电子有限公司 | Method and device for receiving GPS and clock correcting method |
| CN104579551A (en) * | 2014-09-03 | 2015-04-29 | 贵州久联民爆器材发展股份有限公司 | Method for adjusting traffic rate of electronic detonator |
| CN105698617A (en) * | 2016-01-25 | 2016-06-22 | 北京理工大学 | Electronic detonator controlled through detonation controller and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111780632A (en) | 2020-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102684579B1 (en) | Semiconductor apparatus and system perfoming calibration operation | |
| US8537907B2 (en) | Receiving system for use in near field communication and mode detection method therefore | |
| CN111780632B (en) | Method and device for adjusting communication rate of electronic detonator | |
| US7667554B2 (en) | Pre-emphasis adjustment method | |
| CN107147553B (en) | Method, device and equipment for adjusting Baud rate and frame format of slave station | |
| US20140323043A1 (en) | Method for controlling an antenna network quality factor of a near field communication device without changing matching network, and associated apparatus | |
| CN104317762A (en) | Method for adaptively controlling transmitting and receiving directions of RS485 chip by aid of FPGA (field programmable gate array) | |
| CN103292647B (en) | Clock calibration method of electronic detonator control circuit and electronic initiation system | |
| KR100766031B1 (en) | Two-Wire Interface Having Dynamically Adjustable Data Fields Depending On Operation Code | |
| CN113220607B (en) | Data processing method based on FIFO | |
| CN105637810B (en) | Distance-measuring device and distance measurement method | |
| CN110618957B (en) | Interface time sequence calibration method and device | |
| JP2007295021A (en) | Receiver and receiving method | |
| CN111010181B (en) | DDR signal time sequence calibration method and device | |
| TWI493890B (en) | Reception circuit | |
| US7058149B2 (en) | System for providing a calibrated clock and methods thereof | |
| EP0669738A2 (en) | System and method for automatically detecting speed, parity, and character length | |
| CN108521310A (en) | A kind of wireless communication frequency calibration method, device and equipment | |
| KR101989340B1 (en) | Data link layer test method and system of CAN communication | |
| CN112117990A (en) | Communication apparatus and control method thereof | |
| CN112667551B (en) | QSPI data transmission method and system based on phase self-adaptation | |
| JP2022180884A (en) | Calibration device and semiconductor integrated circuit | |
| KR102022795B1 (en) | Method and system for measuring data start point automatically | |
| CN117499980B (en) | Data communication method, electronic equipment and storage medium | |
| US11630795B2 (en) | RS-485 circuit and communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221130 Address after: 550000 Standard Plant 12 # in South Park of High end Equipment Manufacturing Industrial Park, Gui'an New District, Guiyang City, Guizhou Province Applicant after: GUIZHOU QAML OF SCIENCE AND TECHNOLOGY CO.,LTD. Address before: Room 410, South Building, building 1, 350 Chunxiao Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200120 Applicant before: Shanghai weifuer Semiconductor Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |