CN102621955B - System and method for realizing synchronous writing of rating data of multiple controllers based on CAN (controller area network) bus - Google Patents
System and method for realizing synchronous writing of rating data of multiple controllers based on CAN (controller area network) bus Download PDFInfo
- Publication number
- CN102621955B CN102621955B CN201210083224.4A CN201210083224A CN102621955B CN 102621955 B CN102621955 B CN 102621955B CN 201210083224 A CN201210083224 A CN 201210083224A CN 102621955 B CN102621955 B CN 102621955B
- Authority
- CN
- China
- Prior art keywords
- controller
- bus
- host computer
- nominal data
- electric power
- 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 - Fee Related
Links
Images
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention relates to a system for realizing the synchronous writing of rating data of multiple controllers based on a CAN (controller area network) bus, which comprises a plurality of controllers, an upper computer and a power network, wherein the upper computer and each controller are all connected to the CAN bus, the power network is connected with each controller and provides different power supply voltages for the controllers, and each controller has a voltage detection function. The invention also relates to a method for realizing the synchronous writing of rating data of multiple controllers based on a CAN bus. According to the method, each controller detects the respective power supply voltage, and sets the respective power supply voltage as a CAN communication ID (identity); the upper computer determines the connection condition of each controller on the CAN bus according to the respective CAN communication ID; the coordinated and orderly communication between the upper computer and the controllers are ensured, and thereby realizing the synchronous writing of rating data of the multiple controllers. The system for realizing the synchronous writing of rating data of multiple controllers based on a CAN bus disclosed by the invention is simple in structure, and the method is simple to apply, low in implementation cost, and wide in application range.
Description
Technical field
The present invention relates to networking technology area, particularly CAN bussing technique field, specifically refers to and a kind ofly based on CAN bus, realizes the system and method that multi-controller synchronously writes nominal data.
Background technology
Important role is being played the part of in being written in controller production line of nominal data, and because function, the performance of controller are different, the parameter of the nominal data writing in every kind of controller is also different.But for same controller, the data that write are the same.The mode of controller data writing is as main one by one by hand for nominal data writing mode in streamline or the manpower of take at present, and artificially constantly manually each control of replacing of such mode, works loaded down with trivial details, easily causes that fatigue causes production accident.For each controller, data writing is again identical simultaneously, and the data writing that goes is one by one lost time very much.Along with the raising of factory to the requirement of benefit, more production line more and more relies on automation equipment, and these equipment are to improving circumstance and enhancing productivity very large help.But aspect controller nominal data writes, in prior art, do not have a kind of more feasible a plurality of controllers to write the method for nominal data simultaneously.
Summary of the invention
The object of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of controller power source voltage detecting technology of utilizing to distinguish the ID of each controller in bus, and utilize ID priority arbitration mechanism in CAN bus and retransmission mechanism to guarantee in bus the harmonious orderly mutually of the communication between host computer and each controller, and then write when realizing a plurality of controller nominal data, and simple in structure, easy to use, with low cost, what have wide range of applications realizes based on CAN bus the system and method that multi-controller synchronously writes nominal data function.
In order to realize above-mentioned object, of the present inventionly based on CAN bus, realize the system that multi-controller synchronously writes nominal data function and there is following formation:
This system comprises a plurality of controllers, host computer and electric power network, each described controller is all connected in described CAN bus, and be connected to described host computer by this CAN bus, each described controller is also connected to described electric power network, described electric power network provides in order to each controller to described the supply power voltage differing from one another, and each described controller all has voltage detecting function.
Should realize in the system that multi-controller synchronously writes nominal data function based on CAN bus, each described controller all has voltage detection unit, and the memory cell and the D/A conversion unit that are connected with described voltage detection unit, described voltage detection unit also connects described electric power network, and described memory cell is connected to described host computer by CAN bus.
Should realize in the system that multi-controller synchronously writes nominal data function based on CAN bus, described electric power network is electric resistance partial pressure electric power network, described electric resistance partial pressure electric power network is determined the power bracket of divider resistance in electric power network according to the supply district of each described controller and static current sinking, and determines the power supply partial pressure value of each described controller.
The present invention also provides a kind of method of utilizing the multi-controller of described system realization based on CAN bus synchronously to write nominal data, and the method comprises the following steps:
(1) each described controller detects supply voltage separately;
(2) each described controller basis supply voltage setting separately CAN communication ID separately;
(3) described host computer sends bind command by CAN bus to each described controller;
(4) each described controller receives after described bind command, by described CAN bus, to described host computer, returns to described CAN communication ID;
(5) described host computer is determined the connection of each controller in CAN bus according to each CAN communication ID obtaining;
(6) described host computer sends nominal data by CAN bus to each described controller simultaneously;
(7) described host computer sends data by CAN bus to each described controller and is sent order and check code;
(8) each controller described in receives data and is sent after order, according to described check code, described nominal data is carried out to verification, and passes through CAN bus to described host computer return state information;
(9) described host computer receives after described state information, determines the state of each controller.
Should realize in the method that multi-controller synchronously writes nominal data function based on CAN bus, each described controller all has voltage detection unit, and the memory cell and the D/A conversion unit that are connected with described voltage detection unit, described voltage detection unit also connects described electric power network, described memory cell is connected to described host computer by CAN bus, and described step (2) specifically comprises the following steps:
(21) voltage detection unit that each described controller passes through separately detects supply power voltage separately;
(22) described D/A conversion unit is converted to digital quantity by described supply power voltage;
(23) the described described digital quantity of each controller is set to CAN communication ID separately.
Should realize in the method that multi-controller synchronously writes nominal data function based on CAN bus, the length of CAN communication ID is standard frame length or expansion frame length.
Should realize in the method that multi-controller synchronously writes nominal data function based on CAN bus, described step (5) specifically comprises the following steps:
(51) described host computer receives according to CAN bus ID priority arbitration mechanism and retransmission mechanism CAN communication ID the counting that each controller returns by CAN bus;
(52) the described host computer ID that communicates by letter with each received CAN according to described counting determines the connection of each controller in CAN bus.
Should realize in the method that multi-controller synchronously writes nominal data function based on CAN bus, described check code is CRC check code.
Should realize in the method that multi-controller synchronously writes nominal data function based on CAN bus, described step (8) specifically comprises the following steps:
(81) each described controller receives data and is sent order and CRC check code;
(82) each described controller carries out CRC check to the nominal data receiving, and judges that whether check results is consistent with CRC check code, if consistent, enters step (83), if inconsistent, enters step (84);
(83) described controller storage nominal data, and by described CAN bus, to described host computer, return to reception data and successfully order;
(84) described controller is returned and receives data failure order to described host computer by described CAN bus.
What adopted this invention realizes based on CAN bus the system and method that multi-controller synchronously writes nominal data function, its system comprises a plurality of controllers, host computer and electric power network, each described controller is all connected in described CAN bus, and be connected to described host computer by this CAN bus, each described controller is also connected to described electric power network, described electric power network provides in order to each controller to described the supply power voltage differing from one another, and each described controller all has voltage detecting function.In described method, each controller detects supply voltage separately, and according to supply voltage setting separately CAN communication ID separately; Host computer is determined the connection of each controller in CAN bus based on each CAN communication ID; And utilize ID priority arbitration mechanism in CAN bus and retransmission mechanism to guarantee in bus the harmonious orderly mutually of the communication between host computer and each controller, and then write when realizing a plurality of controller nominal data, and of the present inventionly based on CAN bus, realize multi-controller synchronously to write the system configuration of nominal data function simple, method application is easy, realize with low costly, range of application is also comparatively extensive.
Accompanying drawing explanation
Fig. 1 of the present inventionly realizes based on CAN bus the structural representation that multi-controller synchronously writes the system of nominal data function.
Fig. 2 of the present inventionly realizes based on CAN bus the flow chart of steps that multi-controller synchronously writes the method for nominal data function.
Fig. 3 of the present inventionly realizes method that multi-controller synchronously writes nominal data function schematic flow sheet in actual applications based on CAN bus.
Embodiment
In order more clearly to understand technology contents of the present invention, especially exemplified by following examples, describe in detail.
Refer to shown in Fig. 1, for of the present invention, based on CAN bus, realize the structural representation that multi-controller synchronously writes the system of nominal data function.
In one embodiment, should realize the system that multi-controller synchronously writes nominal data function based on CAN bus and comprise a plurality of controllers, host computer and electric power network, each described controller is all connected in described CAN bus, and be connected to described host computer by this CAN bus, each described controller is also connected to described electric power network, described electric power network provides in order to each controller to described the supply power voltage differing from one another, and each described controller all has voltage detecting function.
Utilize system described in this execution mode to realize the method that multi-controller based on CAN bus synchronously writes nominal data, as shown in Figure 2, described method comprises the following steps:
(1) each described controller detects supply voltage separately;
(2) each described controller basis supply voltage setting separately CAN communication ID separately;
(3) described host computer sends bind command by CAN bus to each described controller;
(4) each described controller receives after described bind command, by described CAN bus, to described host computer, returns to described CAN communication ID;
(5) described host computer is determined the connection of each controller in CAN bus according to each CAN communication ID obtaining;
(6) described host computer sends nominal data by CAN bus to each described controller simultaneously;
(7) described host computer sends data by CAN bus to each described controller and is sent order and check code;
(8) each controller described in receives data and is sent after order, according to described check code, described nominal data is carried out to verification, and passes through CAN bus to described host computer return state information;
(9) described host computer receives after described state information, determines the state of each controller.
In a kind of more preferably execution mode, memory cell and D/A conversion unit that each described controller all has voltage detection unit and is connected with this voltage detection unit, described voltage detection unit also connects described electric power network, and described memory cell is connected to described host computer by CAN bus.
Utilizing this multi-controller that more preferably system described in execution mode realizes based on CAN bus synchronously to write in the method for nominal data function, described step (2) specifically comprises the following steps:
(21) voltage detection unit that each described controller passes through separately detects supply power voltage separately;
(22) described D/A conversion unit is converted to digital quantity by described supply power voltage;
(23) the described described digital quantity of each controller is set to CAN communication ID separately, and the length of this CAN communication ID can be standard frame length or expansion frame length.
In another preferred embodiment, described step (5) specifically comprises the following steps:
(51) described host computer receives according to CAN bus ID priority arbitration mechanism and retransmission mechanism CAN communication ID the counting that each controller returns by CAN bus;
(52) the described host computer ID that communicates by letter with each received CAN according to described counting determines the connection of each controller in CAN bus.
In a kind of further preferred embodiment, described check code is CRC check code.Described step (8) specifically comprises the following steps:
(81) each described controller receives data and is sent order and CRC check code;
(82) each described controller carries out CRC check to the nominal data receiving, and judges that whether check results is consistent with CRC check code, if consistent, enters step (83), if inconsistent, enters step (84);
(83) described controller storage nominal data, and by described CAN bus, to described host computer, return to reception data and successfully order;
(84) described controller is returned and receives data failure order to described host computer by described CAN bus.
In preferred execution mode, described electric power network is electric resistance partial pressure electric power network, described electric resistance partial pressure electric power network is determined the power bracket of divider resistance in electric power network according to the supply district of each described controller and static current sinking, and determines the power supply partial pressure value of each described controller.
In actual applications, the application of CAN bus is more and more extensive, and in a lot of controllers, has the measuring ability of supply voltage, especially in automobile electronics, occupies dominant position.Therefore can utilize above-mentioned advantage, realize the method that simultaneously writes nominal data based on a plurality of controllers of CAN bus.
Controller generally all has the measuring ability to supply voltage own, and data are stored, wiped, write-in functions, and CAN bus communication function.In application, method of the present invention, as shown in Figure 3, comprises the following steps:
First a plurality of controllers be linked into one by electric resistance partial pressure and can guarantee in electric power network that each controller can normally move, the voltage of the power supply of each controller needs difference, particularly, electric resistance partial pressure electric power network is according to the quantity of controller, minimum and maximum supply district, and the static electric current consuming of controller, by Ohm's law primary Calculation, go out the power bracket of power supply divider resistance.And according to the quantity of controller, Power supply situation, and design and wish the dividing potential drop situation on each controller voltage, by Ohm's law, calculate exact value and each controller power source partial pressure value of resistance.
Then, each controller is according to gathering the supply voltage of oneself, and gathered power supply voltage signal is converted into digital quantity by AD, inserts in the ID of CAN.The ID length of CAN can be made as standard frame or expansion frame as requested.According to the ID priority arbitration mechanism of CAN bus itself, the priority that the controller that ID is less sends is higher, but must guarantee that the ID priority of host computer setting is the highest.
Then, host computer is by sending bind command in CAN bus, host computer receives ID the counting of replying, and according to according to ID priority arbitration mechanism and the retransmission mechanism of CAN bus itself, according to the ID situation of counting situation and reception, can judge which controller simultaneously and not communicate by letter above, be convenient to inspection problem.
After confirming that connection is normal, host computer sends nominal data to all controllers simultaneously, and all controllers receive nominal data, and each controller receives only during this period, in bus, does not send any data.
When host computer sends nominal data to all controllers simultaneously, host computer oneself calculates CRC check code according to data content.Nominal data is sent rear host computer transmission data and is sent order and CRC check code.
After verification, controller carries out CRC check to the data that receive, and the CRC check code that while and host computer send compares, and if the same data is deposited in to memory, simultaneously toward in bus constantly transmitting and receiving data successfully order, until receive host computer reply; If CRC check code difference, data do not deposit memory in, simultaneously toward in bus constantly transmitting and receiving data unsuccessfully order, until receive host computer reply.The upper situation according to data in bus judges the data receiver situation of each control, and replys each controller, and the condition of simultaneously oestrusing informs operating personnel.
What adopted this invention realizes based on CAN bus the system and method that multi-controller synchronously writes nominal data function, its system comprises a plurality of controllers, host computer and electric power network, each described controller is all connected in described CAN bus, and be connected to described host computer by this CAN bus, each described controller is also connected to described electric power network, described electric power network provides in order to each controller to described the supply power voltage differing from one another, and each described controller all has voltage detecting function.In described method, each controller detects supply voltage separately, and according to supply voltage setting separately CAN communication ID separately; Host computer is determined the connection of each controller in CAN bus based on each CAN communication ID; And utilize ID priority arbitration mechanism in CAN bus and retransmission mechanism to guarantee in bus the harmonious orderly mutually of the communication between host computer and each controller, and then write when realizing a plurality of controller nominal data, and of the present inventionly based on CAN bus, realize multi-controller synchronously to write the system configuration of nominal data function simple, method application is easy, realize with low costly, range of application is also comparatively extensive.
In this specification, the present invention is described with reference to its specific embodiment.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (8)
1. based on CAN bus, realize the system that multi-controller synchronously writes nominal data function for one kind, it is characterized in that, described system comprises a plurality of controllers, host computer and electric power network, each described controller is all connected in described CAN bus, and be connected to described host computer by this CAN bus, each described controller is also connected to described electric power network, described electric power network provides in order to each controller to described the supply power voltage differing from one another, and each described controller all has voltage detecting function, each described controller all has voltage detection unit, and the memory cell and the D/A conversion unit that are connected with described voltage detection unit, described voltage detection unit also connects described electric power network, described memory cell is connected to described host computer by CAN bus.
2. according to claim 1ly based on CAN bus, realize the system that multi-controller synchronously writes nominal data function, it is characterized in that, described electric power network is electric resistance partial pressure electric power network, described electric resistance partial pressure electric power network is determined the power bracket of divider resistance in electric power network according to the supply district of each described controller and static current sinking, and determines the power supply partial pressure value of each described controller.
3. utilize system described in claim 1 to realize the method that multi-controller based on CAN bus synchronously writes nominal data, it is characterized in that, described method comprises the following steps:
(1) each described controller detects supply voltage separately;
(2) each described controller basis supply voltage setting separately CAN communication ID separately;
(3) described host computer sends bind command by CAN bus to each described controller;
(4) each described controller receives after described bind command, by described CAN bus, to described host computer, returns to described CAN communication ID;
(5) described host computer is determined the connection of each controller in CAN bus according to each CAN communication ID obtaining;
(6) described host computer sends nominal data by CAN bus to each described controller simultaneously;
(7) described host computer sends data by CAN bus to each described controller and is sent order and check code;
(8) each controller described in receives data and is sent after order, according to described check code, described nominal data is carried out to verification, and passes through CAN bus to described host computer return state information;
(9) described host computer receives after described state information, determines the state of each controller.
4. according to claim 3ly based on CAN bus, realize the method that multi-controller synchronously writes nominal data function, it is characterized in that, each described controller all has voltage detection unit, and the memory cell and the D/A conversion unit that are connected with described voltage detection unit, described voltage detection unit also connects described electric power network, described memory cell is connected to described host computer by CAN bus, and described step (2) specifically comprises the following steps:
(21) voltage detection unit that each described controller passes through separately detects supply power voltage separately;
(22) described D/A conversion unit is converted to digital quantity by described supply power voltage;
(23) the described described digital quantity of each controller is set to CAN communication ID separately.
5. according to claim 4ly based on CAN bus, realize the method that multi-controller synchronously writes nominal data function, it is characterized in that, the length of CAN communication ID is standard frame length or expansion frame length.
6. according to claim 3ly based on CAN bus, realize the method that multi-controller synchronously writes nominal data function, it is characterized in that, described step (5) specifically comprises the following steps:
(51) described host computer receives according to CAN bus ID priority arbitration mechanism and retransmission mechanism CAN communication ID the counting that each controller returns by CAN bus;
(52) the described host computer ID that communicates by letter with each received CAN according to described counting determines the connection of each controller in CAN bus.
7. according to claim 3ly based on CAN bus, realize the method that multi-controller synchronously writes nominal data function, it is characterized in that, described check code is CRC check code.
8. according to claim 7ly based on CAN bus, realize the method that multi-controller synchronously writes nominal data function, it is characterized in that, described step (8) specifically comprises the following steps:
(81) each described controller receives data and is sent order and CRC check code;
(82) each described controller carries out CRC check to the nominal data receiving, and judges that whether check results is consistent with CRC check code, if consistent, enters step (83), if inconsistent, enters step (84);
(83) described controller storage nominal data, and by described CAN bus, to described host computer, return to reception data and successfully order;
(84) described controller is returned and receives data failure order to described host computer by described CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210083224.4A CN102621955B (en) | 2012-03-26 | 2012-03-26 | System and method for realizing synchronous writing of rating data of multiple controllers based on CAN (controller area network) bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210083224.4A CN102621955B (en) | 2012-03-26 | 2012-03-26 | System and method for realizing synchronous writing of rating data of multiple controllers based on CAN (controller area network) bus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102621955A CN102621955A (en) | 2012-08-01 |
| CN102621955B true CN102621955B (en) | 2014-01-15 |
Family
ID=46561920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210083224.4A Expired - Fee Related CN102621955B (en) | 2012-03-26 | 2012-03-26 | System and method for realizing synchronous writing of rating data of multiple controllers based on CAN (controller area network) bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102621955B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108259368A (en) * | 2018-01-11 | 2018-07-06 | 郑州云海信息技术有限公司 | A kind of data transmission system and method based on FPGA |
| CN108319564A (en) * | 2018-01-25 | 2018-07-24 | 北京航天发射技术研究所 | A kind of method of identification power source communications bus ID in power supply-distribution system |
| CN108494649B (en) * | 2018-01-30 | 2021-01-15 | 中国航天电子技术研究院 | Bus system based on combination of polling and uniform time slot and data transmission method |
| CN111506039A (en) * | 2020-03-13 | 2020-08-07 | 重庆利龙科技产业(集团)有限公司 | Vehicle window controller calibration system and method based on multitask scheduling L IN communication |
| CN111930656B (en) * | 2020-08-11 | 2024-06-11 | 东风电子科技股份有限公司 | System and method for realizing vehicle VIN code refreshing verification based on Labview |
| CN112440740A (en) * | 2020-12-01 | 2021-03-05 | 东风越野车有限公司 | Vehicle power take-off system and power take-off and calibration method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3864613A (en) * | 1972-12-29 | 1975-02-04 | Hymie Cutler | Path generating system for numerical control apparatus |
| FR2872934A1 (en) * | 2004-07-07 | 2006-01-13 | Peugeot Citroen Automobiles Sa | SYSTEM FOR CONFIGURING AN ON-BOARD CALCULATOR ON A MOTOR VEHICLE |
| CN1747472A (en) * | 2005-10-17 | 2006-03-15 | 浙江大学 | Universal embedded marker and marking method based on CCP |
| CN102320276A (en) * | 2011-07-05 | 2012-01-18 | 张化锴 | Pure electric automobile entire car controller calibration system and calibration method based on the CAN bus |
-
2012
- 2012-03-26 CN CN201210083224.4A patent/CN102621955B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3864613A (en) * | 1972-12-29 | 1975-02-04 | Hymie Cutler | Path generating system for numerical control apparatus |
| FR2872934A1 (en) * | 2004-07-07 | 2006-01-13 | Peugeot Citroen Automobiles Sa | SYSTEM FOR CONFIGURING AN ON-BOARD CALCULATOR ON A MOTOR VEHICLE |
| CN1747472A (en) * | 2005-10-17 | 2006-03-15 | 浙江大学 | Universal embedded marker and marking method based on CCP |
| CN102320276A (en) * | 2011-07-05 | 2012-01-18 | 张化锴 | Pure electric automobile entire car controller calibration system and calibration method based on the CAN bus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102621955A (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102621955B (en) | System and method for realizing synchronous writing of rating data of multiple controllers based on CAN (controller area network) bus | |
| CN106878124B (en) | Method for controlling high-capacity diagnostic communication in a vehicle and vehicle controller | |
| KR102179097B1 (en) | Method and system for updating software for vehicle using smart phone | |
| CA2871242C (en) | Method and system for managing power demand of a plurality of charging stations sharing the same portion of an electrical network | |
| CN102081585B (en) | RS485 dual-bus communication method used for test satellite | |
| CN207910817U (en) | A kind of remote monitoring system based on narrowband Internet of Things | |
| CN104714811A (en) | Method and device for manufacturing difference upgrade package and system difference upgrade method and device | |
| CN102647320A (en) | Integrated circuit suitable for high-speed 1553 bus protocol control | |
| CN103516571A (en) | System architecture and method for ensuring data communication reliability by means of double CAN buses | |
| CN103916284A (en) | RS485 communication interface automatic baud rate and communication address detection method | |
| CN110569988B (en) | Payment machine fault processing system and processing method | |
| CN104325947A (en) | Vehicle control device and method | |
| CN104135412A (en) | Serial bus redundant communication method oriented to multi-point Internet application | |
| CN103577485A (en) | Master and slave mode inquiry system and method | |
| TW201321242A (en) | Digital signal transceiver, method and electrombile system thereof | |
| CN104217471A (en) | Oil filling counting method and system | |
| CN102735956B (en) | Current loop detection system and current loop detection method thereof | |
| CN113885461B (en) | Serial-parallel conversion module, equipment, method, device and industrial control system | |
| CN105242283A (en) | Excavator GPS terminal fault detection system | |
| US11983518B2 (en) | Device, system and a method for reprograming electronic control unit | |
| CN105072007A (en) | Petroleum logging bus data transmission method | |
| CN202141778U (en) | Line fault positioner used for 10kV power distribution network | |
| CN104361299A (en) | Security system, multilevel security controlling system and location information reading method thereof | |
| CN109211300A (en) | A kind of Hall sensor batch quickly detection and calibration system and its means of communication and application | |
| CN108810945A (en) | A kind of manned unmanned plane and its signal redundancy backup covering system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20150326 |
|
| EXPY | Termination of patent right or utility model |