CN108449426B - Method and system for communication between Internet of things controller and data center - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
Abstract
The invention discloses a communication method of an internet-of-things controller and a data center. The communication mode of the Internet of things controller and the data center is a mode that the Internet of things controller actively reports to the data center and the data center carries out slave question and answer combination on the Internet of things controller. The frame format of the data sent to the data center by the sensor of the internet of things is a preset frame format, namely the frame formats of the data received by the data center are all the preset frame formats, and a large amount of data with different frame formats does not need to be analyzed, so that the working efficiency of the data center is improved, and further the working efficiency of the system of the internet of things is improved. The internet of things controller and data center communication system disclosed by the invention also has the beneficial effects.
Description
Technical Field
The invention relates to the technical field of internet of things, in particular to a method for communicating an internet of things controller with a data center, and further relates to a system for communicating the internet of things controller with the data center.
Background
The internet of things refers to the fact that objects and a network are connected together through information sensing equipment according to a certain agreed protocol to exchange data information or communicate, and therefore intelligent tracking, positioning, monitoring and management of the objects are achieved. The Internet of things has the advantages of comprehensive sensing, reliable transmission and intelligent processing, so that the life of people is more intelligent and convenient. In the use of the internet of things, an internet of things controller realizes data acquisition of peripheral sensing equipment, the acquired data is fed back to a data center, and the data center analyzes and processes the data. However, in the prior art, when the internet-of-things controller performs data interaction with the data center, the acquired data of various types of sensing devices are directly transmitted to the data center, and due to different protocol formats of the sensing devices, the protocol formats of the data received by the data center are complicated, so that the data analysis burden of the data center is increased, and the work efficiency of the whole internet-of-things system is reduced.
In summary, how to provide a scheme capable of improving the working efficiency of the internet of things system is a problem to be solved urgently by technical personnel in the field at present.
Disclosure of Invention
The invention aims to provide a method and a system for communication between an internet of things controller and a data center, which can improve the working efficiency of an internet of things system.
In order to achieve the above purpose, the invention provides the following technical scheme:
a method for communication between an Internet of things controller and a data center comprises the following steps:
reading a data frame sent by each sensing device, wherein the data frame comprises data collected by the sensing device corresponding to the data frame;
judging whether the frame format of the data frame is a preset frame format or not;
if so, sending the data frame to a data center;
if not, the frame format of the data frame is converted into the preset frame format, and the data frame after the frame format conversion is sent to the data center.
Preferably, the preset frame format includes:
frame header, length, protocol version, frame class, message timestamp, source address, destination address, message ID, frame content, cyclic redundancy check.
Preferably, before reading the data frame sent by each sensing device, the method further includes:
receiving a read frame sent by a data center, wherein the frame format of the read frame is the preset frame format, and the frame content of the read frame comprises: a target device identification code;
the reading of the data frame sent by each sensing device includes:
and reading the data frame sent by the sensing equipment corresponding to the identification code of the target equipment.
Preferably, the method further comprises the following steps:
judging whether a control frame sent by the data center is received, if so, setting parameters according to the frame content of the control frame, wherein the frame format of the control frame is the preset frame format, and the frame content of the control frame comprises: and the data center is a parameter set by the Internet of things controller.
Preferably, after the control frame is judged to be received, the method further includes:
and sending a confirmation frame to the data center to allow the data center to confirm that the internet-of-things controller receives the control frame, wherein the frame format of the confirmation frame is the preset frame format.
Preferably, after performing parameter setting according to the corresponding content in the control frame, the method further includes:
judging whether the parameter setting meets the requirement of a control frame, if not, sending an error frame to the data center, wherein the frame format of the error frame is the preset frame format, and the frame content of the error frame comprises the following steps: the time and the failure reason corresponding to the failure of parameter setting are as follows: the equipment is off-line and has misoperation.
Preferably, the method further comprises the following steps:
and judging whether an equipment restarting frame sent by the data center is received, if so, restarting the equipment, wherein the frame format of the restarting frame is the preset frame format.
Preferably, the method further comprises the following steps:
sending a device status frame to the data center, wherein the frame content of the device status frame comprises: a state of the device, where a frame format of the device state frame is the preset frame format, and the state of the device includes: offline state, online state.
Preferably, the method further comprises the following steps:
judging whether a time tick frame sent by the data center is received, wherein the frame format of the time tick frame is the preset frame format, and the frame content of the time tick frame comprises: a time code corresponding to the current time;
if the judgment result is yes, the time is corrected according to the time code.
An internet-of-things controller and data center communication system, comprising: the system comprises an Internet of things controller, a data center and sensing equipment;
the internet of things controller comprises:
a reading unit for: reading a data frame sent by each sensing device, wherein the data frame comprises data collected by the sensing device corresponding to the data frame;
a determination unit configured to: judging whether the frame format of the data frame is a preset frame format or not;
a conversion unit to: when the judgment result of the judgment unit is negative, converting the frame format of the data frame into the preset frame format;
a transmitting unit configured to: and sending the data frame to the data center.
The invention provides a method for communication between an internet-of-things controller and a data center, which comprises the following steps: reading a data frame sent by each sensing device, wherein the data frame comprises data collected by the sensing device corresponding to the data frame; judging whether the frame format of the data frame is a preset frame format or not; if so, sending the data frame to a data center; if not, the frame format of the data frame is converted into the preset frame format, and the data frame after the frame format conversion is sent to the data center. According to the data center and the data processing method, the frame format of the data sent to the data center by the sensor of the Internet of things is the preset frame format, namely the frame format of the data received by the data center is the preset frame format, a large amount of data with different frame formats does not need to be analyzed, the working efficiency of the data center is improved, and further the working efficiency of the Internet of things system is improved. The internet of things controller and data center communication system disclosed by the invention also has the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method for communicating between an internet-of-things controller and a data center according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a communication system between an internet-of-things controller and a data center according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flowchart of a method for a network controller to communicate with a data center according to an embodiment of the present invention is shown, where the method may include:
step S11: and reading the data frame sent by each sensing device, wherein the data frame comprises the data collected by the sensing device corresponding to the data frame.
The sensing equipment collects working data of different articles in the Internet of things system and then sends the working data to the Internet of things controller in the form of data frames. The sensing device can support IO devices, serial devices and network devices.
Step S12: judging whether the frame format of the data frame is a preset frame format or not; if so, go to step S13, otherwise, go to step S14.
Step S13: and sending the data frame to a data center.
Step S14: the frame format of the data frame is converted into a preset frame format, and the data frame with the converted frame format is sent to a data center.
And after reading the data frame sent by each sensing device, the Internet of things controller judges whether the frame format of the data frame is a preset frame format, if so, the data frame is directly sent to a data center, if not, the frame format of the data frame is converted into the preset frame format, and then the data frame after the frame format conversion is sent to the data center. The preset frame format is selected as a frame format which is beneficial to the analysis of the data center according to the actual situation.
According to the data center and the data processing method, the frame format of the data sent to the data center by the sensor of the Internet of things is the preset frame format, namely the frame format of the data received by the data center is the preset frame format, and a large amount of data with different frame formats does not need to be analyzed, so that the working efficiency of the data center is improved, and further the working efficiency of the system of the Internet of things is improved.
Preferably, the preset frame format may include:
the frame header, length, protocol version, frame type, message timestamp, source address, destination address, message ID, frame content, cyclic redundancy check, and for a description of each part in the frame format, see table 1:
TABLE 1
For a detailed description of the frame type with index 5 in table 1, see table 2:
TABLE 2
It should be noted that: the encoding of the frame type in table 2 is only a specific implementation, and since the frame type encoding is only used for distinguishing different frame types, any encoding method that can identify the frame type according to the frame type encoding is within the scope of the present invention. In addition, in practical applications, the types of the frame categories are not limited to those presented in table 2, and a frame category with a specific purpose may be set according to practical situations, and the frame category encoding thereof may be set correspondingly.
The following describes the frame contents corresponding to 5 typical frame categories:
for the reported frame with the frame type code of 01, the related description of the frame content is shown in table 3:
TABLE 3
The device identification code and the device parameter identification code mentioned in table 3 are respectively used to determine the target sensing device and the parameters related to the sensing device, and the corresponding relationship between each sensing device and the device identification code and the corresponding relationship between each parameter of the device and the parameter identification code may be set according to the actual situation, and are not limited to the following specific examples: for a temperature and humidity sensor, the device identification code and the related description of the parameters thereof refer to table 4:
TABLE 4
According to the table, it can be known that if the device identification code in the frame content of the report frame is 0001, it indicates that the related information of the temperature and humidity sensor is transmitted in the report frame, and if the first parameter identification code is 0002, it indicates that the temperature parameter of the temperature and humidity sensor is transmitted in the report frame, and the corresponding first parameter value is a specific value of the temperature collected by the temperature and humidity sensor.
The above is only illustrated by a temperature and humidity sensor, and the setting of the identification codes and parameters of other different types of devices is the same as that of the temperature and humidity sensor, and is not described herein again.
For the offline frame of the reporting device whose frame type code is 03, please refer to table 5 for the related description of the frame content:
TABLE 5
| Serial number | Frame content | Number of transfer bytes | Description of the invention |
| 1 | Equipment identification code | 2 | For identifying various kinds of equipment |
| 2 | Device ID | 1 | Equipment number |
| 3 | On-line status | 1 | Offline with 1 (or 0) and online with 0 (or) |
For the read frame with the frame type code of 20, please refer to table 6 for the related description of the frame content:
TABLE 6
For the time-tick frame with the frame type code of 22, the frame content is a time stamp, and the time stamp uses a 7-byte BCD code to characterize time, for example: 20150910105210 is used to indicate 52 minutes 10 seconds at 9, 10 of 2015.
For the error frame with the frame type FC, the related description of the frame content refers to table 7:
TABLE 7
The method for the communication between the internet-of-things controller and the data center provided by the embodiment of the invention can further comprise the following steps:
receiving a read frame sent by a data center, wherein the frame format of the read frame is a preset frame format, and the frame content of the read frame comprises: a target device identification code;
reading the data frame sent by each sensing device comprises:
and reading the data frame sent by the sensing equipment corresponding to the identification code of the target equipment.
According to the embodiment of the invention, after the reading frame sent by the data center is received and the sensing equipment corresponding to the equipment identification code in the reading frame is determined, the data frame sent by the sensing equipment is read, the data frame sent by the specific sensing equipment can be flexibly read according to the requirement of the data center, and the working flexibility of the Internet of things system is improved.
The method for the communication between the internet-of-things controller and the data center provided by the embodiment of the invention can further comprise the following steps:
judging whether a control frame sent by a data center is received, if so, setting parameters according to the frame content of the control frame, wherein the frame format of the control frame is a preset frame format, and the frame content of the control frame comprises: the data center is the parameter set by the Internet of things controller.
The parameter setting can be set before the equipment is used, but the parameters may need to be modified or reset in the using process, so that when the control frame sent by the data center is judged to be received, the parameter setting can be carried out according to the frame content of the control frame, and the flexibility of the operation of the Internet of things system is improved.
Preferably, after determining that the control frame is received, the method may further include:
and sending a confirmation frame to the data center to ensure that the data center confirms that the Internet of things controller receives the control frame, wherein the frame format of the confirmation frame is a preset frame format.
And after the control frame is judged to be received, the data center sends a confirmation frame to the data center, and the data center can timely acquire the receiving condition of the control frame by the Internet-of-things controller, so that the communication between the data center and the Internet-of-things controller is more efficient and more reliable.
Preferably, after performing parameter setting according to corresponding content in the control frame, the method may further include:
judging whether the parameter setting meets the requirement of the control frame, if not, sending an error frame to the data center, wherein the frame format of the error frame is a preset frame format, and the frame content of the error frame comprises the following steps: the time and the failure reason corresponding to the failure of parameter setting are as follows: the equipment is off-line and has misoperation.
After parameter setting is carried out, whether the set parameters meet the requirements of the control frame or not is judged, if not, an error frame is sent to the data center, so that the data center can timely know the failure of parameter setting of the Internet of things controller, the reason and the moment of the failure and the like, and timely discovery and fault elimination are facilitated.
The method for the communication between the internet-of-things controller and the data center provided by the embodiment of the invention can further comprise the following steps:
and judging whether an equipment restarting frame sent by the data center is received, if so, restarting the equipment, wherein the frame format of the restarting frame is a preset frame format.
And equipment needs to be restarted under some special or emergency conditions, so that the system of the Internet of things can work normally.
The method for the communication between the internet-of-things controller and the data center provided by the embodiment of the invention can further comprise the following steps:
sending a device status frame to the data center, wherein the frame content of the device status frame comprises: the state of the device, the frame format of the device state frame is a preset frame format, and the state of the device includes: offline state, online state.
And sending the equipment state frame to the data center, so that the data center can know the state of each equipment in time.
The method for the communication between the internet-of-things controller and the data center provided by the embodiment of the invention can further comprise the following steps:
judging whether a time tick frame sent by a data center is received or not, wherein the frame format of the time tick frame is a preset frame format, and the frame content of the time tick frame comprises the following steps: a time code corresponding to the current time;
if the judgment result is yes, the time is corrected according to the time code.
And after the time-setting frame sent by the data center is judged to be received, time is corrected according to the time code in the time-setting frame so as to ensure that the time is consistent with the time of the data center.
In the method for communicating between an internet-of-things controller and a data center provided in an embodiment of the present invention, a preset frame format may further include:
fields are reserved.
The reserved field is used for standby, and the byte number and the specific content of the field can be set according to the actual situation, so that the frame format is more flexible.
Referring to fig. 2, a communication system between an internet-of-things controller and a data center according to the present invention is shown, which may include: the system comprises an Internet of things controller 11, a data center 12 and sensing equipment 13;
the internet-of-things controller 11 includes:
a reading unit 111 for: reading a data frame sent by each sensing device 13, wherein the data frame comprises data collected by the sensing device 13 corresponding to the data frame;
a judging unit 112, configured to: judging whether the frame format of the data frame is a preset frame format or not;
a conversion unit 113 for: when the judgment result of the judgment unit 112 is negative, converting the frame format of the data frame into a preset frame format;
a sending unit 114, configured to: the data frame is sent to the data center 12.
For a description of a relevant part in a communication system between an internet-of-things controller and a data center provided in an embodiment of the present invention, please refer to the description of the relevant part in the communication method between the internet-of-things controller and the data center provided in the embodiment of the present invention, and details are not repeated herein. Parts of the technical solutions provided in the embodiments of the present invention that are consistent with the implementation principles of the corresponding technical solutions in the prior art are not described in detail, so as to avoid redundant description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. A method for communicating an Internet-of-things controller with a data center is characterized by comprising the following steps:
reading a data frame sent by each sensing device, wherein the data frame comprises data collected by the sensing device corresponding to the data frame;
judging whether the frame format of the data frame is a preset frame format or not;
if so, sending the data frame to a data center;
if not, converting the frame format of the data frame into the preset frame format, and sending the data frame after converting the frame format to the data center;
before reading the data frame sent by each sensing device, the method further comprises the following steps:
receiving a read frame sent by a data center, wherein the frame format of the read frame is the preset frame format, and the frame content of the read frame comprises: a target device identification code;
the reading of the data frame sent by each sensing device includes:
and reading the data frame sent by the sensing equipment corresponding to the identification code of the target equipment.
2. The communication method according to claim 1, wherein the preset frame format comprises:
frame header, length, protocol version, frame class, message timestamp, source address, destination address, message ID, frame content, cyclic redundancy check.
3. The communication method according to claim 2, further comprising:
judging whether a control frame sent by the data center is received, if so, setting parameters according to the frame content of the control frame, wherein the frame format of the control frame is the preset frame format, and the frame content of the control frame comprises: and the data center is a parameter set by the Internet of things controller.
4. The communication method according to claim 3, wherein after determining that the control frame is received, further comprising:
and sending a confirmation frame to the data center to allow the data center to confirm that the internet-of-things controller receives the control frame, wherein the frame format of the confirmation frame is the preset frame format.
5. The communication method according to claim 3, wherein after the parameter setting is performed according to the corresponding content in the control frame, the method further comprises:
judging whether the parameter setting meets the requirement of a control frame, if not, sending an error frame to the data center, wherein the frame format of the error frame is the preset frame format, and the frame content of the error frame comprises the following steps: the time and the failure reason corresponding to the failure of parameter setting are as follows: the equipment is off-line and has misoperation.
6. The communication method according to claim 2, further comprising:
and judging whether an equipment restarting frame sent by the data center is received, if so, restarting the equipment, wherein the frame format of the restarting frame is the preset frame format.
7. The communication method according to claim 2, further comprising:
sending a device status frame to the data center, wherein the frame content of the device status frame comprises: a state of the device, where a frame format of the device state frame is the preset frame format, and the state of the device includes: offline state, online state.
8. The communication method according to claim 2, further comprising:
judging whether a time tick frame sent by the data center is received, wherein the frame format of the time tick frame is the preset frame format, and the frame content of the time tick frame comprises: a time code corresponding to the current time;
if the judgment result is yes, the time is corrected according to the time code.
9. An internet-of-things controller and data center communication system, comprising: the system comprises an Internet of things controller, a data center and sensing equipment;
the internet of things controller comprises:
a reading unit for: reading a data frame sent by each sensing device, wherein the data frame comprises data collected by the sensing device corresponding to the data frame;
a determination unit configured to: judging whether the frame format of the data frame is a preset frame format or not;
a conversion unit to: when the judgment result of the judgment unit is negative, converting the frame format of the data frame into the preset frame format;
a transmitting unit configured to: sending the data frame to the data center;
the internet-of-things controller is used for receiving a reading frame sent by a data center before reading a data frame sent by each sensing device, wherein the frame format of the reading frame is the preset frame format, and the frame content of the reading frame comprises: and the reading unit is specifically used for reading the data frame sent by the sensing equipment corresponding to the identification code of the target equipment.
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