CN109803240A - A kind of transmission method of engine condition data - Google Patents
A kind of transmission method of engine condition data Download PDFInfo
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- CN109803240A CN109803240A CN201811639538.1A CN201811639538A CN109803240A CN 109803240 A CN109803240 A CN 109803240A CN 201811639538 A CN201811639538 A CN 201811639538A CN 109803240 A CN109803240 A CN 109803240A
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Abstract
The invention discloses a kind of transmission methods of engine condition data, based on the ECU for being provided with MCU processor, MCU processor connects server by NB-IOT module, MCU processor establishes connection according to used interface communications protocol with NB-IOT module, MCU processor acquires the engine condition data that each sensor is read and engine condition data is written and sends in caching, then is sent together by NB-IOT module with the ID code of engine.The present invention is wirelessly on collected engine condition real-time data transmission to the server specially set up, and storage is in the database；Associated mechanisms read the various status datas of the engine of specified ID code in actual operation according to respective permission from server at any time, as repairing, safeguard and improved important evidence to engine；It is effectively analyzed using big data analysis tool, finds out the various advantage and disadvantage of various available engine and the use habit of user, to accurately repair, safeguard and improve to engine.
Description
Technical field
The present invention relates to engine data transmission technique fields, are a kind of transmission of engine condition data specifically
Method.
Background technique
Currently, well known ECU hardware is by including processor, memory, internal system bus, external bus interface, mould
The control of quasi- signal sampling channel, On-off signal channel, built-in sensors, injector drive circuit, valve actuation circuit and power supply
Device mainboard, the shell with sealing performance and external interface connector composition processed.After ECU electrification reset, flash storage is written
Engine control procedures be loaded into memory, processor first initializes peripheral components and interface, then read come
From the data of various sensors outwardly and inwardly, engine current state is obtained.The control given according to control devices such as throttles
Target processed, processor calculated according to the control algolithm in program the distributive value that per cylinder engine under current state needs,
The control parameters such as air inflow, oil injection time, intake and exhaust moment go control oil spout by the gentle gate drive circuit of injector drive circuit
Valve and valve realize given control target and make engine operation in efficiency highest as far as possible, in the state that discharge is minimum.But
It is ECU once completing manufacture, the exploitation of software and the debugging of software and hardware of hardware, is installed to starting for client as formal product
After coming into operation on machine, anyone cannot read the collected engine condition data of ECU at any time again, other than ECU itself,
Who can not understand the working condition of engine.The collected mass data of ECU is wasted, and engine producer is to right
Engine is repaired, safeguards or is improved, then there is a serious shortage of the various status datas in engine real work as foundation.
Summary of the invention
The purpose of the present invention is to provide a kind of transmission methods of engine condition data, can effectively exist to engine
Various status datas in actual motion are read out；It is analyzed using big data analysis tool, finds out various existing start
Various advantage and disadvantage and the use habit of user of machine etc., to more accurately and efficiently repair, safeguard and change to engine
Into.
The present invention is achieved through the following technical solutions:
A kind of transmission method of engine condition data, based on the ECU for being provided with embedded MCU processor, inside the ECU
MCU processor is connected with NB-IOT module, and MCU processor and NB-IOT module are established according to used interface communications protocol
Connection, MCU processor acquire the engine condition data that each sensor is read and send the write-in of engine condition data slow
In depositing, then it is sent to together by NB-IOT module for storing engine condition data and engine with the ID code of engine
The server of ID code.NB-IOT module is connected with antenna, is realized by antenna accessing mobile communication network and is connect with server, from
And realize engine condition data are transferred on server carry out storage and when in use for associated mechanisms carry out using.
Further, in order to preferably realize the present invention, specifically includes the following steps:
Step S1: to each equipment and NB-IOT module initialization of ECU connection；
Step S2: data are established and send caching；
Step S3:NB-IOT module and server establish connection；
Step S4: engine condition data and engine ID code are read, and number is written into engine condition data and read access time
According in transmission caching；
Step S5: the engine condition data and engine ID code being written in data transmission caching are sent to NB-IOT mould
Engine condition data and engine ID code are sent server by block, NB-IOT module, completes transmission.
Further, in order to preferably realize the present invention, the step S1 specifically includes the following steps:
Step S11: initialization；
Step S12: judge whether initialization succeeds；
If success, carries out step S2；
If unsuccessful, fault message will be recorded, and export fault message.
Further, in order to preferably realize the present invention, the step S2 is specifically referred to: establish data send caching A and
Data send caching B.
Further, in order to preferably realize the present invention, the step S3 specifically includes the following steps:
Step S31: connection is established with server；
Step S32: judge whether connection succeeds；
If success, carries out step S4；
If unsuccessful, fault message will be recorded, and export fault message.
Further, in order to preferably realize the present invention, the step S4 specifically includes the following steps:
Step S41: engine condition data are read, and add timestamp to engine condition data；
Step S42: judge that data send caching A and data send whether caching B has stored completely；
Step S43: not stored full data are written into the engine condition data with timestamp and send caching A or data transmission
Cache B；
Step S44: engine ID code is read；
Further, in order to preferably realize the present invention, the step S5 the following steps are included:
Step S51: being set to the state of transmitting for NB-IOT module, by engine ID code and engine condition data with timestamp
It is sent to NB-IOT module；
Step S52: NB-IOT module is set to reception state, the data receiver receipt of reading service device completes transmission.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
(1) present invention is using mobile communications network wirelessly collected engine condition real-time data transmission to specially
On the server or server farm of erection, storage is in the database；
(2) the invention enables associated mechanisms or personnel can read specified ID code from server at any time according to respective permission
The various status datas of engine in actual operation, as repairing, safeguard and improved important evidence to engine；
(3) present invention can be effectively utilized big data analysis tool and analyze the real work situation of engine, find out
Various advantage and disadvantage and the use habit of user of various available engine etc., to more accurately and efficiently be tieed up to engine
It repairs, safeguard and improves.
Detailed description of the invention
Fig. 1 is work flow diagram of the invention.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1:
The present invention is achieved through the following technical solutions, as shown in Figure 1, a kind of transmission method of engine condition data, based on setting
It is equipped with the ECU of embedded MCU processor, the MCU processor inside the ECU connects server, MCU by NB-IOT module
Processor establishes connection according to used interface communications protocol with NB-IOT module, and MCU processor acquires each sensor and reads
The engine condition data that arrive and engine condition data are written are sent in caching, then are passed through together with the ID code of engine
NB-IOT module is sent to the server of the ID code for storing engine condition data and engine.
It should be noted that by above-mentioned improvement, engine shape that the various data sampling sensors on ECU will be read
The ID code of state data and engine passes to server by NB-IOT module together, supplies in the database being stored on server
Authorized person's access and progress big data analysis processing, are realized engine condition data real-time transmission to cloud big data system
Function.When data are sent wirelessly in ECU, the bottom data coding of NB-IOT communication system, the generation of radiofrequency signal, tune
System and amplification, transmitting-receiving switching control, with the tasks such as shake hands of mobile communication base station all by the software and hardware of NB-IOT inside modules
It is automatically performed, ECU without consuming more software and hardware resources thus.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 2:
The present embodiment advanced optimize on the basis of the above embodiments as shown in Figure 1, specifically includes the following steps:
Step S1: to each equipment and NB-IOT module initialization of MCU processor connection；
Step S2: data are established and send caching；
Step S3:NB-IOT module and server establish connection；
Step S4: engine condition data and engine ID code are read, and number is written into engine condition data and read access time
According in transmission caching；
Step S5: the engine condition data and engine ID code being written in data transmission caching are sent to NB-IOT mould
Engine condition data and engine ID code are sent server by block, NB-IOT module, completes transmission；
Further, in order to preferably realize the present invention, the step S1 specifically includes the following steps:
Step S11: initialization；
Step S12: judge whether initialization succeeds；
If success, carries out step S2；
If unsuccessful, fault message will be recorded, and export fault message.
It should be noted that after ECU starting, MCU processor is first to various on system bus by above-mentioned improvement
Equipment and NB-IOT module are initialized, and judge whether to initialize successfully, if unsuccessful, MCU processor will be to appearance
The information of failure is recorded.Enter if initializing successfully and carries out the foundation that data send caching in next step.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 3:
The present embodiment advanced optimizes on the basis of the above embodiments, as shown in Figure 1, further, in order to preferably real
The existing present invention, the step S2 are specifically referred to: the needs of data storage can be effectively ensured in order to guarantee that data send caching,
And guarantee to record and save in engine condition data real-time perfoming simultaneously, guarantee is not in discontinuity；It will build in memory
Vertical data send caching A and data send caching B.
Further, in order to preferably realize the present invention, the step S3 specifically includes the following steps:
Step S31: connection is established with server；
Step S32: judge whether connection succeeds；
If success, carries out step S4；
If unsuccessful, fault message will be recorded, and export fault message.
It should be noted that establishing connection, acknowledgement channel according to NB-IOT communication protocol and server by above-mentioned improvement
It is unobstructed available；When occurring connecting unsuccessful, the information of failure is recorded；Engine condition data are carried out if success
Transmission.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 4:
The present embodiment advanced optimizes on the basis of the above embodiments, as shown in Figure 1, further, in order to preferably real
The existing present invention, the step S4 specifically includes the following steps:
Step S41: engine condition data are read, and add timestamp to engine condition data；
Step S42: judge that data send caching A and data send whether caching B has stored completely；
Step S43: the engine condition data with timestamp are written as to store full data transmission caching A or data transmission
Cache B；
Step S44: engine ID code is read.
It should be noted that inside ECU and external various sensors are to engine behavior by above-mentioned improvement
Every status data is acquired, and every engine condition data collected are passed to MCU processor and are collected,
MCU processor carries out data analysis and process to the engine condition data of acquisition, and by engine condition data according to sampling
Time sequencing deposit data send caching in, engine condition data and engine ID code are transferred to by MCU processor together
NB-IOT module.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 5:
The present embodiment advanced optimizes on the basis of the above embodiments, as shown in Figure 1, further, in order to preferably real
The existing present invention, the step S5 the following steps are included:
Step S51: being set to the state of transmitting for NB-IOT module, by engine ID code and engine condition data with timestamp
It is sent to NB-IOT module；
Step S52: NB-IOT module is set to reception state, the data receiver receipt of reading service device completes transmission.
It should be noted that MCU processor passes engine condition data and engine ID code together by above-mentioned improvement
Defeated to arrive before NB-IOT module, MCU processor, which will control first to issue wireless data to NB-IOT module and send to instruct, is set to it
Then engine condition data in caching are packaged by transmission state, and together with engine ID code, be transmitted to by UART interface
NB-IOT module is sent to server, is transferred on server to complete engine condition data.
The data that NB-IOT module is sent with radio frequency signal can be connect by neighbouring any mobile communication base station
It receives and is forwarded on telecommunication network and be sent to server, the database being stored on server accesses and carry out big data for authorized person
Analysis processing, is realized engine condition data real-time transmission to the function of cloud big data system.
When data packing and one block number of transmission are according to the data in caching are sent, another piece of caching immediately begins to be stored in newly
Data, it is ensured that the engine condition data recorded and transmitted will not be interrupted；I.e. when data, which send caching A, to be carried out data transmission,
Data send caching B and will store and record to engine condition data at this time；To effectively avoid an only block number according to hair
Caching is sent not can guarantee when carrying out the transmission of engine condition data, while to freshly harvested engine behavior data at this time
Recording and storage is carried out, data record is caused to be unable to real-time perfoming.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 6:
The present embodiment advanced optimizes on the basis of the above embodiments, as shown in Figure 1, a kind of biography of engine condition data
Transmission method, based on the ECU for being provided with embedded MCU processor, the MCU processor is connected with NB-IOT module, MCU processing
Device establishes connection according to used interface communications protocol with NB-IOT module, and MCU processor acquires what each sensor was read
Simultaneously engine condition data are written in transmission caching for engine condition data, then pass through NB-IOT together with the ID code of engine
Module is sent.
Further, in order to preferably realize the present invention, specifically includes the following steps:
Step S1: to each equipment and NB-IOT module initialization of ECU connection；The step S1 specifically includes the following steps:
Step S11: initialization；
Step S12: judge whether initialization succeeds；
If success, carries out step S2；
If unsuccessful, fault message will be recorded, and export fault message.
Step S2: data are established and send caching；It specifically refers to: establishing data and send caching A and data transmission caching B.
Step S3:NB-IOT module and server establish connection；The step S3 specifically includes the following steps:
Step S31: connection is established with server；
Step S32: judge whether connection succeeds；
If success, carries out step S4；
If unsuccessful, fault message will be recorded, and export fault message.
Step S4: engine condition data and engine ID code are read, and engine condition data and read access time are write
Enter data to send in caching；The step S4 specifically includes the following steps:
Step S41: engine condition data are read, and add timestamp to engine condition data；
Step S42: judge that data send caching A and data send whether caching B has stored completely；
Step S43: not stored full data are written into the engine condition data with timestamp and send caching A or data transmission
Cache B；
Step S44: engine ID code is read.
Such as: when MCU processor detects that data transmission caching A is not stored full, has the engine condition of timestamp
Supplemental characteristic write-in data send caching A and continue storage up to storage is full, and when data, which send caching A, stores full, data are sent
It caches the engine condition data in A and the engine ID code of same reading is passed through to NB-IOT module transfer together to server, this
When not stored full data send caching B and store continuation to engine condition data in real time, will be read after storage is full
Engine ID code together by NB-IOT module transfer to server, engine condition number is effectively made using above-mentioned setting
According to can real-time perfoming storage, be not in because storage is full after, data transmission, which is buffered in, carries out the transmission of engine condition data
When, the record storage of new data can not be carried out.
Step S5: the engine condition data and engine ID code being written in data transmission caching are sent to NB-IOT
Engine condition data and engine ID code are sent server by module, NB-IOT module, completes transmission；
It specifically refers to: after a block number is according to buffer memory is sent completely, being written to the block number according to the engine shape sent in caching
State data and engine ID code are sent to NB-IOT module, and NB-IOT module sends engine condition data and engine ID code
To server, transmission is completed；An other block number will record engine condition data according to caching is sent in real time at this time；
Step S51: after a block number is according to buffer memory is sent completely, NB-IOT module is set to the state of transmitting, by engine ID code
NB-IOT module is sent to the engine condition data with timestamp；
Judge whether engine condition data are sent completely, if completing that step S52 will be carried out；If step will be re-started by not completing
S51 operation.
Step S52: after engine condition data and engine ID code are sent completely, NB-IOT module is set to reception shape
State, the data receiver receipt of reading service device complete transmission；
If server is not successfully received, by the step of repeating aforesaid operations step S5, until being properly received.
If server is properly received, this engine condition the data transfer ends, which carries out again according to caching is sent
The storage of new data.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 7:
A kind of electronic engine management system with data Wireless Networking transfer function, including it is provided with embedded MCU processing
The ECU of device, the wireless data communication module being connect with MCU processor, the radio frequency connecting pin being connect with wireless data communication module
Son and the power circuit being connect respectively with MCU processor and wireless data communication module.
Further, in order to preferably realize the present invention, the wireless data communication module includes NB-IOT communication module
The antenna connecting with NB-IOT communication module, the NB-IOT communication module are connect with MCU processor by UART interface.
Further, it in order to preferably realize the present invention, is provided on the ECU shell for consolidating radio frequency connection terminal
The external interface connector being scheduled on ECU shell.
Further, in order to preferably realize the present invention, the radio frequency connection terminal is SMB type radio frequency connection terminal；Institute
Radio frequency connection terminal is stated with 50 Ω normal impedances.
Further, in order to preferably realize the present invention, the antenna passes through radio frequency coaxial-cable and radio frequency connection terminal
Connection.
Further, in order to preferably realize the present invention, A is provided between the MCU processor power port and ground and is moved back
Coupling filter capacitor is provided with B decoupling filter capacitor between the wireless data communication module power port and ground.
Further, in order to preferably realize the present invention, the model BC35G, the MCU of the NB-IOT communication module
The model SPC560D40L3 of processor.
Radio frequency connection terminal is a kind of basic standardised generic electrical component, the type used in the design for SMB type,
As long as this series of radio frequency connection terminal, its outer dimension of the connector of any concrete model and property of any producer's production
Energy parameter is all about the same, therefore is no longer described in detail.
Working principle:
After ECU electrifying startup, i.e. to NB-IOT communication module when MCU processor initializes the various equipment on ECU
Initialized, while establishing two block numbers in memory and caching according to sending, then according to NB-IOT communication protocol and server or
Server farm establishes connection, determines that channel open is available；In the operational process of ECU, the hair that is read from various sensors
Motivational state data will be stored into data according to the time sequencing of sampling and send in caching, after one piece of caching is filled, first to NB-
IOT communication module, which issues wireless data and sends to instruct, makes it be set to transmission state, then by the data and engine ID in caching
Code is transmitted to NB-IOT communication module together and sends.NB-IOT communication module can with the data that radio frequency signal is sent
It is sent to server or server farm to be received and forwarded on network by neighbouring any mobile communication base station, is stored in server
Or big data analysis processing is accessed and carried out in the database in server farm for authorized person, it realizes engine condition number
The function of cloud big data system is transmitted to when factually.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit any simple modification to the above embodiments of the invention, equivalent variations, protection of the invention is each fallen within
Within the scope of.
Claims (7)
1. a kind of transmission method of engine condition data, the MCU based on the ECU for being provided with MCU processor, inside the ECU
Processor is connected with NB-IOT module, it is characterised in that: MCU processor and NB-IOT module are assisted according to used interface communication
View establishes connection, and MCU processor acquires the engine condition data that each sensor is read and engine condition data are written
It sends in caching, then be sent to together by NB-IOT module for storing engine condition data and hair with the ID code of engine
The server of the ID code of motivation.
2. a kind of transmission method of engine condition data according to claim 1, it is characterised in that: specifically include following
Step:
Step S1: to each equipment and NB-IOT module initialization of MCU processor connection；
Step S2: data are established and send caching；
Step S3:NB-IOT module and server establish connection；
Step S4: engine condition data and engine ID code are read, and number is written into engine condition data and read access time
According in transmission caching；
Step S5: the engine condition data and engine ID code being written in data transmission caching are sent to NB-IOT mould
Engine condition data and engine ID code are sent server by block, NB-IOT module, completes transmission.
3. a kind of transmission method of engine condition data according to claim 2, it is characterised in that: the step S1 tool
Body the following steps are included:
Step S11: initialization；
Step S12: judge whether initialization succeeds；
If success, carries out step S2；
If unsuccessful, fault message will be recorded, and export fault message.
4. a kind of transmission method of engine condition data according to claim 3, it is characterised in that: the step S2 tool
Body refers to: establishing data and sends caching A and data transmission caching B.
5. a kind of transmission method of engine condition data according to claim 4, it is characterised in that: the step S3 tool
Body the following steps are included:
Step S31: connection is established with server；
Step S32: judge whether connection succeeds；
If success, carries out step S4；
If unsuccessful, fault message will be recorded, and export fault message.
6. a kind of transmission method of engine condition data according to claim 5, it is characterised in that: the step S4 tool
Body the following steps are included:
Step S41: engine condition data are read, and add timestamp to engine condition data；
Step S42: judge that data send caching A and data send whether caching B has stored completely；
Step S43: not stored full data are written into the engine condition data with timestamp and send caching A or data transmission
Cache B；
Step S44: engine ID code is read.
7. a kind of transmission method of engine condition data according to claim 6, it is characterised in that: the step S5 packet
Include following steps:
Step S51: being set to the state of transmitting for NB-IOT module, by engine ID code and engine condition data with timestamp
It is sent to NB-IOT module；
Step S52: NB-IOT module is set to reception state, the data receiver receipt of reading service device completes transmission.
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| CN201811639538.1A CN109803240A (en) | 2018-12-29 | 2018-12-29 | A kind of transmission method of engine condition data |
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| CN201811639538.1A CN109803240A (en) | 2018-12-29 | 2018-12-29 | A kind of transmission method of engine condition data |
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Application publication date: 20190524 |