CN111798653A - Data acquisition method and device - Google Patents
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- CN111798653A CN111798653A CN202010630806.4A CN202010630806A CN111798653A CN 111798653 A CN111798653 A CN 111798653A CN 202010630806 A CN202010630806 A CN 202010630806A CN 111798653 A CN111798653 A CN 111798653A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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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
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- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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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
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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Abstract
The invention relates to a data acquisition method and a data acquisition device. The method comprises the following steps: determining a data acquisition mode; the data acquisition mode comprises an external power supply data acquisition mode and an internal battery power supply data acquisition mode; acquiring collected data; when the data acquisition mode is an external power supply data acquisition mode, wirelessly transmitting acquired data to a data server by adopting a 5G transmission mode; storing the acquired data to local storage equipment; when the data acquisition mode is an internal battery power supply data acquisition mode, storing the acquired data to local storage equipment; judging whether the data transmission time is reached; when the data transmission time is up, reading the collected data stored in the storage device; and wirelessly transmitting the acquired data to a data server by adopting a 5G transmission mode. The invention can improve the convenience, namely the reliability of data acquisition in severe environment.
Description
Technical Field
The invention relates to the field of data acquisition, in particular to a data acquisition method and a data acquisition device.
Background
When a field environment far away from a city debugs and operates key equipment in the industrial field and carries out scientific research, a wired network cannot be used for acquiring the equipment state and sensor signals, and the acquired data is generally stored and transmitted in the following two ways.
The first method comprises the following steps: off-line storage, namely, off-line storage is performed by depending on a storage module (such as a U disk and an SD card) of the device, and then, a worker needs to enter a field periodically to complete downloading of data, which causes great inconvenience to data acquisition.
And the second method comprises the following steps: the data of the industrial equipment and the instrument can be transmitted to the cloud platform through the data transmission technology along with the development of the wireless data transmission technology, and workers do not need to arrive at the site, so that great convenience is brought to the acquisition of the data. However, since the wireless transmission technology mostly depends on stable external power supply, the power consumption of the device is large, and the battery is often replaced on site in a short time when the battery is powered, which brings a large workload to the device manager. Moreover, in a wireless transmission mode, due to the influence of a severe field environment, transmission equipment and a transmission network often have faults, and the situation of data loss easily occurs when important data is collected and backup is lacked, so that subsequent data analysis work is influenced.
Therefore, the existing data acquisition device has the problems of inconvenient data acquisition and low reliability when being applied to the environments such as remote suburbs in cities or fields.
Disclosure of Invention
The invention aims to provide a data acquisition method and a data acquisition device so as to improve the convenience and reliability of data acquisition in severe environment.
In order to achieve the purpose, the invention provides the following scheme:
a method of data acquisition, comprising:
determining a data acquisition mode; the data acquisition mode comprises an external power supply data acquisition mode and an internal battery power supply data acquisition mode;
acquiring collected data;
when the data acquisition mode is an external power supply data acquisition mode, wirelessly transmitting the acquired data to a data server by adopting a 5G transmission mode; storing the acquired data to a local storage device;
when the data acquisition mode is an internal battery power supply data acquisition mode, storing the acquired data to the local storage equipment;
judging whether the data transmission time is reached;
reading the collected data stored in the local storage device when the data transmission time is reached;
and wirelessly transmitting the acquired data to the data server by adopting a 5G transmission mode.
Optionally, the determining the data acquisition mode specifically includes:
acquiring power supply parameters;
determining a power supply mode according to the power supply parameters; the power supply mode comprises external power supply and internal battery power supply;
when the power supply mode is external power supply, determining that the data acquisition mode is an external power supply data acquisition mode;
and when the power supply mode is the power supply of the internal battery, determining that the data acquisition mode is the power supply data acquisition mode of the internal battery.
Optionally, the acquiring the collected data specifically includes:
acquiring output data of the equipment by adopting an acquisition conditioning module according to a set data acquisition time interval; when the system is in idle time, the acquisition conditioning module enters a sleep mode; and when the acquisition time is up, the acquisition conditioning module acquires the output data of the equipment.
Optionally, the acquiring the collected data further includes:
acquiring a set data acquisition time interval and a data acquisition type; setting the set data acquisition time interval and the data acquisition type by a user through an input module;
acquiring data transmission time; and the user sets the data transmission time through the input module.
Optionally, the determining whether the data transmission time is reached further includes:
when the data transmission time is not reached, the 5G communication module keeps a power-off state; the 5G communication module is used for wirelessly transmitting the acquired data to the data server in a 5G transmission mode.
Optionally, the wirelessly transmitting the acquired data to the data server by using a 5G transmission mode further includes:
and encrypting the acquired data.
A data acquisition device comprising: the system comprises a singlechip, an acquisition and conditioning module, a 5G communication module and local storage equipment.
The acquisition conditioning module, the 5G communication module and the local storage device are all connected with the single chip microcomputer; the acquisition conditioning module is used for acquiring data; the 5G communication module is used for wirelessly transmitting the acquired data to the data server in a 5G transmission mode; the local storage device is used for storing the acquired data;
the single chip microcomputer is used for determining a data acquisition mode and controlling the acquisition conditioning module to acquire data according to the data acquisition mode; the data acquisition mode comprises an external power supply data acquisition mode and an internal battery power supply data acquisition mode;
the single chip microcomputer is also used for controlling the local storage device to store the acquired data according to the data acquisition mode, and controlling the 5G communication module to wirelessly transmit the acquired data to a data server in a 5G transmission mode.
Optionally, the method further includes: an input module and a display module; the input module is used for receiving a set data acquisition time interval and a set data acquisition type input by a user, and is also used for receiving data transmission time input by the user; the display module is used for displaying the acquired data and assisting the input module to complete the setting of relevant parameters; the related parameters comprise set data acquisition time interval, data acquisition types and data transmission time.
Optionally, the method further includes: the power supply switching module and the self-checking module; the power supply switching module is used for switching power supply modes, and the power supply modes comprise external power supply and internal battery power supply; the self-checking module is used for diagnosing and analyzing faults inside the data acquisition device.
Optionally, the method further includes: an encryption module; the encryption module is used for encrypting the acquired data before the acquired data are wirelessly transmitted to a data server in a 5G transmission mode.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention can be compatible with an external power supply mode and an internal battery power supply mode, can realize real-time transmission of data in the external power supply mode, and synchronously performs real-time backup of data while performing data transmission in a 5G transmission mode. Under the internal battery power supply mode, data can be sent regularly according to set time, and low-power-consumption work of the whole equipment is achieved. Under the condition that transmitted data are wrong or lost in the two working modes, the data can be stored through the storage equipment, and all collected data can be reliably acquired. Therefore, the invention can be applied to the environment such as the remote suburbs of cities or the field, and can also be applied to the industrial field with strict requirements on the acquisition of data.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic flow chart of a data acquisition method of the present invention;
FIG. 2 is a schematic diagram of the data acquisition device of the present invention;
FIG. 3 is a schematic flow chart of embodiment 1 of the present invention;
fig. 4 is a schematic flow chart of embodiment 2 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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
FIG. 1 is a schematic flow chart of a data acquisition method according to the present invention. As shown in fig. 1, the data acquisition method of the present invention comprises the following steps:
step 100: a data acquisition mode is determined. The data acquisition mode comprises an external power supply data acquisition mode and an internal battery power supply data acquisition mode. When the data acquisition device adopts an external power supply to supply power, determining that the data acquisition mode is an external power supply data acquisition mode; when the data acquisition device adopts the internal battery to supply power, the data acquisition mode is determined to be the internal battery power supply data acquisition mode.
Step 200: and acquiring the acquired data. And acquiring data output by the equipment according to a data acquisition mode. When data acquisition is carried out, acquiring output data of equipment by adopting an acquisition conditioning module according to a set data acquisition time interval; when the system is in idle time, the acquisition conditioning module enters a sleep mode; and when the acquisition time is up, the acquisition conditioning module acquires the output data of the equipment. And relevant parameters of data acquisition are set by a user through an input module, and the relevant parameters comprise the set data acquisition time interval and the data acquisition type.
Step 300: when the data acquisition mode is an external power supply data acquisition mode, wirelessly transmitting acquired data to a data server by adopting a 5G transmission mode; and storing the collected data to a local storage device. When an external power supply is used for supplying power, the data are transmitted to a data server in a wireless mode through a 5G data transmission channel and stored while all acquired data are stored in a storage medium for data backup in a data online real-time transmission mode. Before wirelessly transmitting the acquired data to the data server by adopting a 5G transmission mode, the acquired data needs to be encrypted so as to ensure the safety of data transmission.
Step 400: and when the data acquisition mode is an internal battery power supply data acquisition mode, storing the acquired data to the local storage equipment. When the internal battery is used for supplying power, a data offline storage mode is adopted, and the acquired data is stored in the local storage device.
Step 500: and judging whether the data transmission time is reached.
Step 600: when the data transmission time is reached, the collected data stored in the storage device is read. When the data transmission time is not reached, the 5G communication module maintains the power-off state. The 5G communication module is used for wirelessly transmitting the acquired data to the data server in a 5G transmission mode.
Step 700: and wirelessly transmitting the acquired data to a data server by adopting a 5G transmission mode. After the collected data is sent through the 5G communication module in a short time by utilizing the characteristic of high transmission rate of the 5G, the power supply of the 5G communication module is cut off, and the 5G communication module enters a dormant state. Before wirelessly transmitting the acquired data to the data server by adopting a 5G transmission mode, the acquired data needs to be encrypted so as to ensure the safety of data transmission.
Fig. 2 is a schematic structural diagram of the data acquisition device of the present invention. As shown in fig. 2, the data acquisition apparatus of the present invention includes: the system comprises a single chip microcomputer 201, an acquisition conditioning module 202, a power supply switching module 203, a 5G communication module 204, a local storage device 205, an input module 206, a display module 207, an encryption module 208 and a self-checking module 209.
The single chip microcomputer 201 comprises common 8-bit single chip microcomputers, 16-bit single chip microcomputers and 32-bit single chip microcomputers, is used for realizing high-speed data acquisition and processing, controlling data storage and transmission, is required to have the characteristic of low power consumption, and can adapt to high-temperature and low-temperature complex working environments. Specifically, the single chip microcomputer 201 is configured to determine a data acquisition mode, and control the acquisition and conditioning module 202 to acquire data according to the data acquisition mode; the data acquisition mode comprises an external power supply data acquisition mode and an internal battery power supply data acquisition mode. The single chip microcomputer 201 is further configured to control the local storage device 205 to store the acquired data according to the data acquisition mode, and control the 5G communication module 204 to wirelessly transmit the acquired data to a data server in a 5G transmission manner.
The acquisition and conditioning module 202 is a freely configurable module, and is used for conditioning output signals of the sensor and the instrument, acquiring information transmitted by a bus of the instrument, and acquiring various types of signals commonly used in an industrial field, such as 4-20mA, 0-10V, Pt100, Pt1000, Ni1000, resistance, switching value and the like, and in addition, acquiring bus signals commonly used in the industrial instrument, such as RS422, RS485, Modbus, ProfiBus and the like, by replacing different signal acquisition modules and applying excitation or conditioning signal waveforms in the modules.
The power supply switching module 203 is used for switching the power supply mode of the power supply, automatically disconnecting the power supply of the internal battery through the switching action of the relay under the condition that the power is supplied by the external power supply, and automatically switching to the power supply mode of the internal battery under the condition that the external power supply is lost.
The 5G communication module 204 is configured to connect the apparatus to a 5G communication network, and upload the acquired data through a 5G signal transmission channel.
The local storage device 205 is used for storing acquired data, selecting a wide-temperature reinforced product, and adopting an aviation electric connector connection mode, so that quick plugging and unplugging can be realized, a worker can quickly detach the local storage device on site to realize replacement of the local storage device when necessary, and in practical application, the local storage device can select a portable solid-state storage device, such as a U disk, a PCMCIA card, a mobile hard disk and the like, according to the stored data capacity.
The input module 206 realizes input of relevant information, and is used for setting data acquisition intervals and data acquisition types, and completing cycle and time setting of 5G communication module upload data.
The display module 207 is used for displaying the collected data, including sensor and instrument data and information, and assisting the input module to complete the setting of relevant parameters.
The encryption module 208 is used for encrypting the acquired data, and the encryption algorithm used for the acquired data includes encryption algorithms such as DES, RSA, ECC, and the like.
The self-checking module 209 is used for realizing the functions of fault diagnosis and analysis in the device, sending and collecting standard signals through a standard signal source, and completing data comparison through the analysis of a single chip microcomputer to ensure that the signal collection precision meets the design requirements.
In the specific implementation process, aiming at analog signals such as 4-20mA, 0-10V and the like output by a sensor installed on a field device and signals such as resistance, switching value, frequency value and the like, the invention adopts a common signal acquisition circuit to form an acquisition conditioning module for carrying out amplification, filtering and conditioning, converts the acquisition conditioning module into digital signals through an AD conversion chip, reads the analog signals through a singlechip and reads industrial field bus signals into the singlechip through a communication conversion chip. The method comprises the steps of collecting and packaging various signals, sequentially storing the signals into a reinforced storage medium according to a time sequence for data backup, reading data of the storage medium by a collecting device according to a set time period, packaging the data, and transmitting the data to a server host through a 5G data transmission channel. When data is stored in the local storage device for storage backup, the data is required to be erased and covered from early data stored in the local storage device under the condition that the space of the local storage device is full, and the data stored in the local storage device is ensured to be the latest acquired and stored data all the time.
Two specific examples are provided below to further illustrate the protocol of the present invention.
Detailed description of the preferred embodiment 1
In order to meet the requirements of real-time data analysis and remote control of the device and realize real-time data transmission, the present embodiment performs offline storage and 5G wireless transmission in an external power supply mode, as shown in fig. 3, and includes the following steps:
step 301: the device carries out system initialization and equipment self-checking, guarantees the accuracy of equipment data collection, detects the electric quantity of battery simultaneously, if be less than the electric quantity that the battery set for, sends fault information through 5G communication module and carries out the under-voltage warning, reminds managers in time to change the battery.
Step 302: the device judges whether the equipment is powered by an internal battery or an external power supply through the acquisition of the power supply level, and enters an external power supply data acquisition mode.
Step 303: the device enters a sleep mode.
Step 304: the device judges whether the set data acquisition time interval is reached or not through a program, if so, the next operation is carried out, and if not, the device continues to enter a sleep mode.
Step 305: the system starts data acquisition work, and data is read into the singlechip through A/D conversion or through an instrument bus
Step 306: and encrypting the data aiming at the collected data.
Step 307: data are processed and transmitted by the 5G communication module aiming at the collected data, and the data are transmitted to the data server in a wireless mode, so that the data can be analyzed and processed conveniently in the next step. And the data is stored in the portable solid-state storage device while being processed, so that the real-time backup of the data is realized.
Specific example 2
In this embodiment 2, an internal battery is used for power supply, and in order to improve reliability of data acquisition and reduce power consumption of the device, the data storage is in an offline storage mode, and data is uploaded at a set wireless data uploading time through 5G. As shown in fig. 4, the present embodiment includes the following steps:
step 401: the equipment carries out system initialization and equipment self-checking, guarantees the accuracy of equipment data collection, detects the electric quantity of battery simultaneously, if be less than the electric quantity that the battery set for, sends fault information through 5G communication module and carries out the under-voltage warning, reminds managers in time to change the battery.
Step 402: the device judges whether the device is powered by an internal battery or an external power supply through the acquisition of the power supply level, and enters an internal battery power supply battery power acquisition mode.
Step 403: and the equipment enters a sleep mode and cuts off the power supply of the data acquisition module and the 5G communication module.
Step 404: the device judges whether the set data acquisition time interval is reached or not through a program, if so, the next operation is carried out, and if not, the device continues to enter a sleep mode.
Step 405: in a set data acquisition time interval, the system starts data acquisition work, the data acquisition module is powered on, data is read into the single chip microcomputer through A/D conversion or through an instrument bus, and data encryption work is carried out.
Step 406: and encrypting the data aiming at the collected data.
Step 407: and packaging the acquired data, and storing the data into the portable solid-state storage device to realize real-time storage of the data.
Step 408: the system judges that the set data transmission time is up to supply power to the 5G communication module and starts the working mode, and the read data in the portable solid storage device are wirelessly transmitted to the data server through the 5G communication module.
Step 409: after the data transmission is finished, the 5G communication module suspends the work, the equipment carries out the sleep mode again, and the next data acquisition and data transmission are waited for.
That is to say, the device can automatically switch the data acquisition and storage mode according to the acquired external power supply level, when the external power supply level is high, the system program can automatically switch to the external power supply power acquisition and storage mode, and in the data acquisition time interval, the system enters the sleep mode, performs data acquisition at the set time interval, and realizes the synchronous 5G transmission and backup storage of data.
Compared with the prior art, the embodiment of the invention can be compatible with an external power supply mode and an internal battery power supply mode, can realize real-time transmission of data in the external power supply mode, and synchronously performs local real-time backup of data while applying the 5G communication module to perform data transmission. Under the internal battery power supply mode, data can be sent regularly according to set time, and low-power-consumption work of the whole equipment is achieved. Under the condition that transmitted data are wrong or lost in two working modes, the data of the portable solid-state storage device can be read locally, and all collected data can be reliably acquired.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A method of data acquisition, comprising:
determining a data acquisition mode; the data acquisition mode comprises an external power supply data acquisition mode and an internal battery power supply data acquisition mode;
acquiring collected data;
when the data acquisition mode is an external power supply data acquisition mode, wirelessly transmitting the acquired data to a data server by adopting a 5G transmission mode; storing the acquired data to a local storage device;
when the data acquisition mode is an internal battery power supply data acquisition mode, storing the acquired data to the local storage equipment;
judging whether the data transmission time is reached;
reading the collected data stored in the local storage device when the data transmission time is reached;
and wirelessly transmitting the acquired data to the data server by adopting a 5G transmission mode.
2. The data acquisition method according to claim 1, wherein the determining a data acquisition mode specifically comprises:
acquiring power supply parameters;
determining a power supply mode according to the power supply parameters; the power supply mode comprises external power supply and internal battery power supply;
when the power supply mode is external power supply, determining that the data acquisition mode is an external power supply data acquisition mode;
and when the power supply mode is the power supply of the internal battery, determining that the data acquisition mode is the power supply data acquisition mode of the internal battery.
3. The data acquisition method according to claim 1, wherein the acquiring the acquired data specifically comprises:
acquiring output data of the equipment by adopting an acquisition conditioning module according to a set data acquisition time interval; when the system is in idle time, the acquisition conditioning module enters a sleep mode; and when the acquisition time is up, the acquisition conditioning module acquires the output data of the equipment.
4. The data acquisition method of claim 3, wherein the acquiring the acquired data further comprises:
acquiring a set data acquisition time interval and a data acquisition type; setting the set data acquisition time interval and the data acquisition type by a user through an input module;
acquiring data transmission time; and the user sets the data transmission time through the input module.
5. The data collection method of claim 1, wherein said determining whether the data transmission time has arrived further comprises:
when the data transmission time is not reached, the 5G communication module keeps a power-off state; the 5G communication module is used for wirelessly transmitting the acquired data to the data server in a 5G transmission mode.
6. The data acquisition method according to claim 1, wherein the wirelessly transmitting the acquired data to a data server by using a 5G transmission method further comprises:
and encrypting the acquired data.
7. A data acquisition device, comprising: the system comprises a singlechip, an acquisition and conditioning module, a 5G communication module and local storage equipment;
the acquisition conditioning module, the 5G communication module and the local storage device are all connected with the single chip microcomputer; the acquisition conditioning module is used for acquiring data; the 5G communication module is used for wirelessly transmitting the acquired data to the data server in a 5G transmission mode; the local storage device is used for storing the acquired data;
the single chip microcomputer is used for determining a data acquisition mode and controlling the acquisition conditioning module to acquire data according to the data acquisition mode; the data acquisition mode comprises an external power supply data acquisition mode and an internal battery power supply data acquisition mode;
the single chip microcomputer is also used for controlling the local storage device to store the acquired data according to the data acquisition mode, and controlling the 5G communication module to wirelessly transmit the acquired data to a data server in a 5G transmission mode.
8. The data acquisition device of claim 7, further comprising: an input module and a display module;
the input module is used for receiving a set data acquisition time interval and a set data acquisition type input by a user, and is also used for receiving data transmission time input by the user;
the display module is used for displaying the acquired data and assisting the input module to complete the setting of relevant parameters; the related parameters comprise set data acquisition time interval, data acquisition types and data transmission time.
9. The data acquisition device of claim 7, further comprising: the power supply switching module and the self-checking module;
the power supply switching module is used for switching power supply modes, and the power supply modes comprise external power supply and internal battery power supply;
the self-checking module is used for diagnosing and analyzing faults inside the data acquisition device.
10. The data acquisition device of claim 7, further comprising: an encryption module; the encryption module is used for encrypting the acquired data before the acquired data are wirelessly transmitted to a data server in a 5G transmission mode.
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| WO2019208066A1 (en) * | 2018-04-25 | 2019-10-31 | 株式会社リンクジャパン | Image capture device and system |
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| CN208673514U (en) * | 2018-09-03 | 2019-03-29 | 武汉盛帆电子股份有限公司 | A kind of NB-IOT water meter |
| CN110336783A (en) * | 2019-05-15 | 2019-10-15 | 江苏链达教育科技有限公司 | A kind of scientific instrument O&M monitoring intelligent terminal SDK |
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| CN112671922A (en) * | 2020-12-29 | 2021-04-16 | 北京明朝万达科技股份有限公司 | Industrial internet data processing system and method |
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Application publication date: 20201020 |