CN102624525B - Electronic identity recognition method for engineering machinery and device - Google Patents
Electronic identity recognition method for engineering machinery and device Download PDFInfo
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- CN102624525B CN102624525B CN201110367708.7A CN201110367708A CN102624525B CN 102624525 B CN102624525 B CN 102624525B CN 201110367708 A CN201110367708 A CN 201110367708A CN 102624525 B CN102624525 B CN 102624525B
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Abstract
An electronic identity recognition method for engineering machinery adopts an electronic identity recognition mode, requires a wireless data transmission system, and is characterized in that an electronic identity recognition device is mounted on each engineering machine, an electronic ID (identity) number which is different from electronic ID numbers of other electronic identity recognition devices is stored in the electronic identity recognition device of each engineering machine in advance and has a fixed CAN (controller area network)-BUS node address, the electronic ID numbers are provided for other control devices and a wireless data transmission device via a CAN-BUS, each electronic ID number and self working state data are packaged together after various controllers obtain the electronic ID number, the packaged data are transmitted back to an information center server via the wireless data transmission device, and the information center server can recognize the machines corresponding to the data packages according to the electronic ID numbers in the data packages after receiving remote information. By the aid of the method, uniqueness of data sources is ensured, maintenance service management difficulty is reduced, the automation degree of production and service is improved, and the electronic identity recognition method for the engineering machinery can be used for all engineering mechanical products.
Description
Technical field
Patent of the present invention relates to electronic identification system, particularly in engineering machinery electronics identification system, and the generation of No. ID, related electronic, output control method and device.
Background technology
Engineering machinery general reference restoration in earth-rock construction engineering, pavement construction and the necessary mechanized equipment of comprehensive mechanized construction engineering needed for maintenance, the operation of flow-type lift and various architectural engineering, these mechanized equipments are of a great variety, complex structure, dispatches from the factory and needs maintenance and repair.When production both at home and abroad at present or use engineering machinery, complete machine number is generally all be printed on complete machine nameplate, as the identification to complete machine when sales management, after-sale service.Along with the development of electronic technology and wireless communication technique, telemanagement is carried out to machine and becomes a kind of possibility, particularly Construction Machinery Market adopts the modes such as bank mortgage, financing lease to carry out selling more and more general in recent years, the long range positioning of machine and monitoring is become to the necessary functions of credit management.Some large-scale mines, loglstics enterprise are owing to having a large amount of engineering machinery simultaneously, based on cluster management and dispatching requirement, also need to carry out long range positioning and Working Status Monitoring system to engineering machinery.Therefore, increasing engineering machinery GPS long range positioning and wireless data transfer module have been installed, for complete machine geographical location information and duty are dealt into the server at remote information center by mobile communication network, to realize the monitoring and management to engineering machinery.
When production both at home and abroad at present or use engineering machinery, have employed more electronic controller (ECU), as loading machine there being engine electric spray controller, variable-speed controller etc., excavator has pilot controller, hydraulic flow power controller, monitoring device etc., because engineering machinery kind is more, controller on each type is different, for stating conveniently, we are referred to as on-board controller A, on-board controller B as Fig. 1, these controllers may from identical or different supplier, usual each supplier can write the Part No. and production sequence number of controlling oneself to provided controller, these sequence numbers may be write in the memory of controller, also may only be identified on the shell of controller, when complete machine general assembly, assembly crewman is by the Part No. of these controllers, together with production sequence number is recorded in complete machine plane No., thus the binding realized controller and complete machine, conveniently mutually retrieved by the production sequence number of complete machine plane No. or controller in the product data management system at company information center.When machine has installed GPS long range positioning monitoring and wireless data transfer module (hereinafter referred to as GPS module), equally the SIM used in GPS module number and GPS module product ID and complete machine number are bundled when producing.During machine operation, complete machine operating state data in the engineering machinery of place and sequence number thereof are beamed back remote information central server by wireless network by GPS module, when remote information central database receives these machine operation data, can according to the GPS module sequence number comprised in data or GPS module with SIM number classify, by deposit data in remote information central database, work as user, when maintenance personals etc. need to search this machine data, by input complete machine number, GPS module sequence number, SIM number in GPS module waits keyword, find corresponding complete machine data, thus enable the ruuning situation of this machine of attendant's remote monitoring.But because the reliability of GPS module is not high, when the GPS module on machine break down need change time, to must more renew the sequence number of GPS module, new SIM number and be replaced the sequence number of GPS module and new SIM number records errorless and is reported to remote information center managers to locate layer by layer, to remove the binding of the sequence number of old GPS module and old SIM number and complete machine number, and add the binding of new GPS module sequence number and new SIM number and complete machine number, process is very loaded down with trivial details, once there is misregistration or forget again binding, then can cause in remote information and receive None-identified when receiving data is the data which platform machine is beamed back.Particularly when emergency maintenance, owing to lacking accessory, during wait accessory, may tear a GPS module from stock's model machine open comes temporarily very useful, this temporarily very useful way, owing to being provisional, usually can not change the data correlation of information database, more easily cause the confusion of data, such as when the data beamed back by maintaining machinery, owing to binding with stock's machine in the sequence number of GPS module and SIM number in the information heart server, the data that stock's machine is beamed back can be treated as, thus cause the confusion of service and management.
Zhejiang University has applied for the Chinese patent of " system for automatically identifying load of excavator " on 04 22nd, 2010, Application Number (patent): CN201010152785.6, open (bulletin) number: CN101806079A open (bulletin) day: 2010.08.18, a kind of system for automatically identifying load of excavator of this disclosure of the invention, comprise five pressure sensors, five analog signal processing circuits, control chip and D/A module, five pressure sensors are respectively by analog signal processing circuit Access Control chip, control chip is connected with D/A module, first pressure sensor accesses on the first main delivery side of pump oil circuit, second pressure sensor accesses on the second main delivery side of pump oil circuit, on the oil circuit that the 3rd pressure sensor access large chamber of bucket cylinder is connected with the first main valve, on the oil circuit that 4th pressure sensor access boom cylinder loculus is connected with the second main valve, on the oil circuit that the 5th pressure sensor access large chamber of bucket arm cylinder is connected with the 3rd main valve, this system can for engineering machinery such as excavators, load is excavated by autonomous classification, determine engine output, easy for installation, it can improve work operations efficiency, reduce fuel consume, alleviate the working strength of operator.This patent application just identifies excavator load system, does not relate to work machine parts number and identifies with production sequence number.
Chen Hong, Shen Ping of south, Shenzhen City, Guangdong Province oil the 3rd 302 2 floor in industrial area have applied for the Chinese patent of " car monitoring system based on electronic identity identification " on September 17th, 2007, Application Number (patent): CN200710077177.1 open (bulletin) number: CN101127660, a kind of electronic identification system on automobile of this invention.This system comprises electronics driving license, checkpoint, remote monitoring center, electronics driving license is arranged in vehicle, the wireless senser radio-frequency module comprising driving license control unit and be connected with control unit, the PLD for hardware encipher be connected with control unit; Checkpoint can be arranged on urban road and highway checks bayonet socket, the identity identification information that wireless senser radio-frequency module sends for receiving electronics driving license, the ciphertext that PLD sends for being decrypted electronics driving license, remote transmission unit is connected with the data terminal of checkpoint control unit, and the identity identification information that electronics driving license sends transfers to remote monitoring center by remote transmission unit; Remote monitoring center comprises data base management system, long distance control system, stores vehicle identification information in data base management system, the information that long distance control system real-time reception checkpoint is sent, and result is fed back to checkpoint.The document is just identified for the identity receiving the transmission of electronics driving license by wireless senser radio-frequency module, does not also relate to work machine parts number and identifies with production sequence number.
Summary of the invention
The object of this invention is to provide a kind of prior art weak point of can overcoming, with work machine parts number with produce the electronic identity recognition methods of complete machine electric-control system and the device that sequence number carries out identification, the engineering machinery remote information service to a manufacturing enterprise or multiple manufacturing enterprise can be realized, simplify the management process of maintenance service.
Engineering machinery electronics personal identification method of the present invention, adopt electronic identity RM and GPS module and wireless data long haul information transfer architecture, it is characterized in that: in every platform engineering machinery, an electronic identity recognition device is installed, one and No. ID, the unduplicated electronics of other electronic identification device is stored in advance in electronic identity recognition device, this electronic identity recognition device is by CAN-BUS bus and other control device and the communication of wireless data remote information transmission device, there is fixing CAN-BUS node address, after each controller obtains No. ID, electronics, together with No. ID, electronics is packaged in self operating state data, by wireless data remote information transmission module, packed packet is beamed back management center server, after management center server receives remote information, identify this packet is from which platform machine according to No. ID, the electronics in packet, accurately obtain corresponding complete machine operating state data and carry out monitoring and management, guarantee the uniqueness of Data Source,
No. ID, described electronics adopts cipher mode to be supplied to each controller on machine and wireless data remote information transmission device.
No. ID, described electronics adopts encryption handling mode to be segment key way to manage.
Described electronics ID segment key cipher mode adopts key method of substitution and algebraic approach to be encrypted No. ID, electronics.
The key of the method for substitution encryption that No. ID, electronics adopts segment key management method, be mainly and prevent from electronic identity recognition device to be decrypted causing No. ID, electronics by improper utilization, be specially: first will set numerical value, such as 0 ~ 65535 numerical value is divided into n section, every section of correspondence key, before each electronic identity recognition device sends No. ID, electronics by CAN, first automatically generate a random number, it can be 16, 24 etc., the value of random number is between 0 ~ 65535, according to the section residing for the value of this random number, select the encryption key that this random number is corresponding, first with method of substitution, No. ID, electronics is replaced after obtaining key, after completing method of substitution encryption, predetermined logic is adopted to carry out algebraically cryptographic calculation again.When electronic identity recognition device carries out the broadcast of No. ID, electronics, data after random number plain text and encryption are sent simultaneously, each electronic controller on the complete machine at electronic identity recognition device place is if GPS module, controller A or controller B are after receiving this broadcast data, first obtain counterpart keys according to random number, carry out reverse encryption computing again, thus complete data deciphering, therefrom extract electronics license number.
The complete machine duty of controller is the various parameters of the duty of existing engineering machinery, the physical parameter, motor temperature, rotating speed, amount of fuel, tire parameter etc. of such as construction machinery hydraulic system.
Above-described engineering machinery comprises restoration in earth-rock construction engineering, pavement construction and maintenance, the operation of flow-type lift and constructional engineering machinery.
Described electronic identity recognition device can enter resting state, is undertaken waking up and provides No. ID, electronics to the controller on the machine of place, then reenter dormancy in sleep procedure by bus wake-up mode.
The electronic identity recognition device that described engineering machinery electronics personal identification method adopts, it is characterized in that: this electronic identity recognition device comprises power module, microprocessor and CAN-BUS transceiver, car power source is converted to clean low-tension supply and powers to microprocessor and CAN-BUS transceiver by power module, microprocessor internal has stored only No. ID, other electronics in advance, outwards send No. ID, electronics by CAN-BUS transceiver, CAN-BUS transceiver also can receive the wake-up signal in CAN-BUS bus and be waken up from dormancy by microprocessor;
Described wireless data remote information transmission device, the packet with No. ID, electronics that each controller is sent by CAN-BUS bus is dealt into information center database server by mobile communications network, database server No. ID, the electronics connected in packet identifies corresponding machine, and the operating state data in packet is associated with the complete machine number of this machine, during with engineering machinery user, insurance company, bank or agent terminal by this complete machine of internet checking, the operating state data of this machine can be obtained.
Engineering machinery electronics identification system of the present invention needs establishment software, the content of software comprises: power-up initializing, produce randomization data, search password, No. ID, encrypted electronic, start timing, and to No. ID, electronics after the encryption of CAN-BUS bus broadcast, after 20 seconds, just automatically enter resting state; In sleep procedure, when CAN there being the dominant bus signals exceeding certain length, electronic identity recognition device can wake up automatically, the judgement of row bus node address and the content of going forward side by side, if have the GPS module in other electronic control module, controller A, controller B etc., sent the claim frame of the node address to electronic identity recognition device by bus, then electronic identity recognition device replys No. ID, electronics from trend the other side, then reenters resting state.
The software of above-described engineering machinery electronics identification system, adopts Single Chip C Language establishment or other Languages establishment, under KEIL4, obtains execute file after compiling.
Below the course of work of engineering machinery electronics personal identification method of the present invention: engineering machinery electronics identification system of the present invention is by installing the electronic identity recognition device that prestores unique identification code (No. ID, electronics) on complete machine, when machine general assembly, as long as No. ID, the electronics stored in advance by this electronic identity recognition device and complete machine plane No. bind associated record, No. ID, this electronics is made to become complete electronic set number in fact.Each controller of original assembling on machine, onboard instruments, GPS module etc., by receiving the broadcast message that this electronic identity recognition device sends in CAN-BUS bus, or by the access to this electronic identity recognition device, obtain No. ID, this electronics, when beaming back complete machine operating state data by wireless data remote information transmission device to remote information center, No. ID obtained, electronics and machine operation status data are sent simultaneously, like this, no matter any controller on former machine, whether instrument or GPS module are keeped in repair or are changed, do not affect remote information center to the identification in source receiving data, do not need the product ID recording the controller be replaced because of maintenance and the controller newly changed, thus alleviate the workload of after-sale service and management.This electronic identity recognition device circuit structure is simple simultaneously, only have power supply processing module, CPU and CAN transceiver, only provide electronics ID code by CAN-BUS bus, do not participate in the control to machine, function singleness, and just short time work, enter resting state At All Other Times, the possibility being subject to external action is very little, therefore has extreme high reliability.
Remote information central database server is to the management process of data: data are sent by wireless communication networks engineering machinery, after information center database server receives data, data are identified from which platform machine by No. ID, electronics, and by this deposit data under this machine name, user, maintenance personal etc., by the access to server, obtain the information of machine.
The substantive distinguishing features that engineering machinery electronics identification system of the present invention is outstanding and significant progress are:
Some engineering machinery have been equipped with the long range positioning monitoring system that GPS etc. puts with Wireless Data Transmission shape at present, when dispatching from the factory, associated electronic controller No. ID is associated with complete machine number, when data are transferred to information center database server, No. ID by the associated electronic controller in data identifies Data Source, because the control of electronic controller is complicated, its reliability is lower, after controller keeps in repair, if No. ID that does not record controller after changing, then cannot associate with complete machine number, cause the data passed back cannot determine from which platform machine.Engineering machinery electronics identification system of the present invention by installing an electronic identity recognition device on complete machine, CAN-BUS bus is utilized to provide No. ID, electronics to electronic controller, controller is made to obtain unique identifier by receiving No. ID, this electronics, thus it is unified to ensure that complete machine number (mechanical Vehicle Identify Number) and No. ID, electronics obtain, remote information center is by the identification to No. ID, this electronics, guarantee the uniqueness of Data Source, reduce maintenance service management difficulty, increase the automaticity of producing, serving, widely applicable, can be used for all construction machinery products.
Controller by GPS monitoring system with wireless data transmission device beam back data to remote information center time, send together with No. ID, electronics is packaged in controller state data, like this, no matter whether controller or GPS monitoring system are keeped in repair or are changed, do not affect the identification of information centre to beamed back data, do not need to record the product ID being replaced part and replaced part, thus alleviate the workload of after-sale service and management, this electronic identity recognition device only externally provides electronics ID code simultaneously, do not participate in the control to machine, and just short time work, enter resting state At All Other Times, the possibility being subject to external action is very little, therefore there is extreme high reliability.
Accompanying drawing explanation
Fig. 1 illustrates the bus topology figure of existing overall engineering machine electric-control system.
Figure 2 shows the overall engineering machine electric-control system bus topology figure increasing electronic identity recognition device of the present invention.
Fig. 3 gives remote information centre data management schematic diagram.
Fig. 4 shows the internal circuit configuration figure of electronic identity recognition device.
Figure 5 provides the software flow pattern of electronic identity recognition device.
Recognize from accompanying drawing 1, current engineering machinery has been installed instrument, various controller and the GPS module with wireless data transmission device, these control device can be coupled to each other communication by CAN-BUS bus.
Recognize from accompanying drawing 2, engineering machinery electronics identification system of the present invention is on complete machine, install electronic identity recognition device, be connected in CAN-BUS bus together with the instrument of complete machine, each controller, GPS module etc., by broadcasting or reply the mode of inquiry, there is provided No. ID unique, electronics to each controller and GPS module, make the wireless data transmission device in GPS module the complete machine operating state data with No. ID, electronics can be passed to information centre.
Recognize from accompanying drawing 3, remote information center is to the management process of data, data are sent by wireless communication networks engineering machinery, after information centre's server receives data, identify data from which platform machine, and by this deposit data under this machine name, user, maintenance personal etc., by the access to server, obtain the information of machine.
Recognize from accompanying drawing 4, be arranged on the electronic identity recognition device of locomotive primarily of power module, microprocessor and CAN-BUS transceiver, car power source is converted to clean low-tension supply and powers to CPU and CAN transceiver by power module, CPU inside has stored only No. ID, other electronics in advance, outwards send No. ID, electronics by CAN transceiver, CAN transceiver also can receive the wake-up signal in CAN-BUS bus and be waken up from dormancy by CPU.
Recognize from accompanying drawing 5, engineering machinery electronics identification system of the present invention needs establishment software, the content of software comprises: power-up initializing, produce randomization data, search password, No. ID, encrypted electronic, start timing, and to No. ID, electronics after the encryption of CAN-BUS bus broadcast, after 20 seconds, just automatically enter resting state; In sleep procedure, when CAN there being the dominant bus signals exceeding certain length, electronic identity recognition device can wake up automatically, the judgement of row bus node address and the content of going forward side by side, if have other electronic control module as the GPS module in accompanying drawing 2, controller A, controller B etc., sent the claim frame of the node address to electronic identity recognition device by bus, then electronic identity recognition device replys No. ID, electronics from trend the other side, then reenters resting state.The software of this project mechano-electronic identification system, adopts Single Chip C Language or other Languages establishment, under KEIL4, obtains execute file after compiling.
Detailed description of the invention
The embodiment of the course of work of the present invention is below described.
The major control process of engineering machinery electronics identification system of the present invention is as follows:
The inventive method proposes to install an electronic identity recognition device on complete machine, for ensureing that this electronic identification device sends the reliability of identification code, this electronic identity recognition device only externally sends No. ID, electronics by CAN-BUS bus, after each start powers on, outwards carry out about 20 seconds the broadcast of No. ID, electronics, then automatically enter resting state, prevent from being interfered.In sleep procedure, when CAN there being the dominant bus signals exceeding certain length, electronic identity recognition device can wake up automatically, the judgement of row bus node address and the content of going forward side by side, if have other electronic control module as the GPS module in accompanying drawing 2, controller A, controller B etc., sent the claim frame of the node address to electronic identity recognition device by bus, then electronic identity recognition device replys No. ID, electronics from trend the other side, then reenters resting state.
The inventive method is the electronic identity recognition device ensureing that No. ID, electronics relates to from this patent, prevent No. ID, electronics by improper use, electronic identity recognition device cryptographically sends No. ID, electronics, controller on complete machine is as the GPS module in accompanying drawing 2, controller A, controller B etc., by CAN receive that electronic identification device sends containing after the enciphered data of No. ID, electronics, be decrypted according to the key prestored and obtain No. ID, correct electronics, then by wireless network, the data with No. ID, electronics are passed to remote information center after packing with self operating state data, after remote information receive centre arrives, identify these bag data are from which platform machine according to No. ID, the electronics in packet.
The electronic identity recognition device that the inventive method relates to adopts CAN-BUS bus communication, meet ISO11898 standard, adopt fixing CAN node address, no matter be contained on any machine, other electronic-controlled installation any such as the GPS module in accompanying drawing 2, controller A or controller B etc. all obtain No. ID, electronics by this node address of CAN-BUS bus access.
The inventive method causes No. ID, electronics by improper utilization for preventing electronic identity recognition device to be decrypted, and adopts sectional management key, then uses method of substitution and No. ID, algebraic approach combined ciphering algorithm for encryption electronics.Be specially, first be divided into n section by 0 ~ 65535, every section of correspondence key, before each electronic identity recognition device sends No. ID, electronics by CAN, first automatically generate 16 random numbers, the value of random number is between 0 ~ 65535, according to the section residing for the value of this random number, select the encryption key that this random number is corresponding, first with method of substitution, No. ID, electronics is replaced after obtaining key, then adopt predetermined logic to carry out algebraically cryptographic calculation.When electronic identity recognition device carries out the broadcast of No. ID, electronics, data after random number plain text and encryption are sent simultaneously, on complete machine, certain electronic controller is if the GPS module in accompanying drawing 2, controller A or controller B are after receiving this broadcast data, first obtain counterpart keys according to random number, carry out reverse encryption computing again, thus complete data deciphering, therefrom extract electronics license number.
The electronic identity recognition device that the inventive method relates to, adopt short-term job mode, outside No. ID, Broadcast Electronic in the time (about 20 seconds) of one shorter only set after complete machine start powers on, after the time of setting, the CPU of electronic identity recognition device enters resting state automatically, prevents from being interfered causing makeing mistakes.
The electronic identity recognition device that the inventive method relates to, No. ID, the electronics provided has uniqueness, and No. ID, electronics is stored in electronic identification device in advance.
GPS module by wireless communication networks to remote information center send data time, No. ID, the electronics sent by electronic identity recognition device and other complete machine operational data information bundle, form a packet, transmit together, after information centre receives data, can judge that data are from that machine by No. ID, the electronics received in data, thus ensure that accurately obtaining corresponding complete machine operating state data carries out monitoring and management.
Claims (4)
1. an engineering machinery electronics personal identification method, it is the engineering machinery remote information service to a manufacturing enterprise or multiple manufacturing enterprise, to realize the process of the management simplifying maintenance service, described engineering machinery comprises restoration in earth-rock construction engineering machinery, pavement construction and Maintenance Machinery, flow-type lift Work machine and constructional engineering machinery, it is characterized in that: adopt electronic identity RM and wireless system for transmitting data, every platform engineering machinery installs an electronic identity recognition device, one and No. ID, the unduplicated electronics of other electronic identification device is stored in advance in electronic identity recognition device, this electronic identity recognition device is by CAN-BUS bus and other control device and the communication of wireless data remote information transmission device, there is fixing CAN-BUS node address, after each controller obtains No. ID, electronics, together with No. ID, electronics is packaged in self operating state data, packed packet to be sent a message back central server by wireless data remote information transmission module, after information centre's server receives remote information, identify this packet is from which platform machine according to No. ID, the electronics in packet, accurately obtain corresponding complete machine operating state data and carry out monitoring and management,
No. ID, described electronics adopts cipher mode to be supplied to each controller on machine and wireless data remote information transmission device;
The complete machine duty of described controller is the various parameters of the duty of existing engineering machinery;
The cipher mode that No. ID, described electronics adopts is segment key cipher mode;
Described electronics ID segment key cipher mode adopts key method of substitution and algebraic approach to be encrypted No. ID, electronics;
It is first setting numerical value is divided into n section that key method of substitution and algebraic approach are encrypted No. ID, electronics, every section of correspondence key, before each electronic identity recognition device sends No. ID, electronics by CAN, first automatically generate a random number, the value of random number is in setting numerical value model is put, according to the section residing for the value of this random number, select the encryption key that this random number is corresponding, first with method of substitution, No. ID, electronics is replaced after obtaining key, then adopt predetermined logic to carry out algebraically cryptographic calculation; When electronic identity recognition device is by CAN-BUS Broadcast Electronic ID, data after random number plain text and encryption are sent simultaneously, each electronic controller in engineering machinery is after receiving this broadcast data, first obtain counterpart keys according to random number, carry out reverse encryption computing again, thus complete data deciphering, therefrom extract electronics license number.
2. engineering machinery electronics personal identification method according to claim 1, is characterized in that: the electronic identity recognition device of No. ID, the unduplicated electronics of described storage be one independently with the device of microprocessor.
3. engineering machinery electronics personal identification method according to claim 1, it is characterized in that: described electronic identity recognition device can enter resting state, undertaken waking up by bus wake-up mode and externally controller provides No. ID, electronics in sleep procedure, then reenter dormancy.
4. the electronic identity recognition device of engineering machinery electronics personal identification method employing described in claim 1, it is characterized in that: this electronic identity recognition device comprises power module, microprocessor and CAN-BUS transceiver, car power source is converted to clean low-tension supply and powers to microprocessor and CAN-BUS transceiver by power module, microprocessor internal has stored only No. ID, other electronics in advance, outwards send No. ID, electronics by CAN-BUS transceiver, CAN-BUS transceiver also can receive the wake-up signal in CAN-BUS bus and be waken up from dormancy by microprocessor.
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| CN104683126B (en) * | 2013-11-27 | 2017-10-13 | 北汽福田汽车股份有限公司 | Network management based on CAN |
| CN105278413B (en) * | 2015-10-30 | 2017-12-22 | 广西柳工机械股份有限公司 | The communication means of host computer and similar CAN device |
| CN106101089B (en) * | 2016-06-06 | 2019-10-22 | 北汽福田汽车股份有限公司 | Method, car-mounted terminal and the ECU that car-mounted terminal is interacted with engine information |
| CN106154952A (en) * | 2016-08-19 | 2016-11-23 | 北海市蕴芯电子科技有限公司 | A kind of management system of the engineering machinery with long term monitoring function |
| CN110287662B (en) * | 2019-06-25 | 2020-12-22 | 漯河市质量技术监督检验测试中心 | Engineering machinery electronic identity recognition system and method |
| CN110691446B (en) * | 2019-09-12 | 2021-11-19 | 深圳市云慧联科技有限公司 | Secondary generation method and device of ID information |
| CN114697105B (en) * | 2022-03-28 | 2024-03-22 | 徐工集团工程机械股份有限公司建设机械分公司 | Dynamic encryption method and device for CAN bus data interaction response of crane |
| CN117118613B (en) * | 2023-10-18 | 2024-01-02 | 湖北芯擎科技有限公司 | Whole vehicle instrument data security protection method, equipment and readable storage medium |
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| CN101007616A (en) * | 2007-01-18 | 2007-08-01 | 上海交通大学 | Remote-control on-line monitoring system for universal movable crane |
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