CN113093633A - Plug-and-play internet of things centralized control terminal based on CAT1 - Google Patents
Plug-and-play internet of things centralized control terminal based on CAT1 Download PDFInfo
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- CN113093633A CN113093633A CN202110493924.XA CN202110493924A CN113093633A CN 113093633 A CN113093633 A CN 113093633A CN 202110493924 A CN202110493924 A CN 202110493924A CN 113093633 A CN113093633 A CN 113093633A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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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
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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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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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Abstract
The invention discloses a plug-and-play internet of things centralized control terminal based on CAT1, which comprises a central processing module, wherein: the central processing module is respectively connected with the communication processing module, the data processing module, the equipment control processing module, the protection processing module and the data storage module; the communication processing module consists of a CAT.1 module, an RS485 communication module and an Ethernet communication module, and the technical scheme of the invention provides a universal hardware architecture of the centralized control terminal of the Internet of things, and has the advantages of rich interfaces, expandable functions, wide application range, plug and play and the like.
Description
Technical Field
The invention belongs to the technical field of terminal equipment of the Internet of things, and particularly relates to a plug-and-play Internet of things centralized control terminal based on CAT 1.
Background
The terminal equipment of the internet of things is key equipment for connecting a sensing layer and a transmission network layer in the internet of things, and realizing data acquisition, data transmission to a network and local physical equipment control.
If no terminal equipment of the Internet of things exists, the sensing data cannot be transmitted to a specified position, and the Internet of things does not exist any more. The terminal equipment of the internet of things can be divided into a single-function terminal and a composite-function terminal from the aspect of use expansibility. The single-function terminal generally has fewer external interfaces, is simple in design, only meets the requirements of single application or partial expansion of the single application, is not flexible in hardware scheme, and generally cannot be subjected to function transformation and expansion along with the change of application occasions.
Typical single-function terminals include an image transmission service terminal for automobile monitoring, an electric power monitoring terminal, and the like. The composite function terminal considers the universality of industrial application, so that the composite function terminal has more external interfaces and complex functions during design and can meet the application requirements of various occasions. However, the development difficulty of the terminal is high, the cost is high, and related products are quite rare in the current market.
In addition, as the network quitting of 2G and 3G becomes a necessary choice, the technology of the internet of things based on 4G/5G is a great task for opening the interconnection of everything, and the CAT.1 communication standard is produced at the discretion. In terms of network cost, the CAT.1 can be seamlessly accessed into the existing LTE network, software and hardware do not need to be upgraded or newly built aiming at a base station, compatible risks do not exist, and network coverage cost is low. Compared with NB-IoT and 2G modules in the same scene, the CAT.1-based chip platform module has stronger advantages in speed and delay on the chip. Compared with the traditional LTE Cat.4 module, the LTE network system has higher integration level and lower power consumption and is adaptive to the current domestic 4G network.
In 7/5/2020, the Ministry of industry and information and communications released "the notification of the office of the Ministry of industry and informatization about the deep development of the mobile Internet of things", and clearly proposed the related requirements for establishing the mobile Internet of things. To accelerate the promotion of migration and network transfer of 2G/3G Internet of things services, a mobile Internet of things comprehensive ecosystem for collaborative development of NB-IoT, 4G (including LTE-Cat.1) and 5G is established, and the newly added Internet of things terminal is guided to migrate to NB-IoT and Cat.1.
Based on the analysis, the development trend of the terminal equipment of the internet of things can be obtained as follows: the intelligent Internet of things terminal equipment has the function of local management and control of physical equipment, and the terminal equipment has rich interfaces, flexible and expandable scheme, compatibility with CAT.1 communication standard, plug-and-play capability and simple application.
Reference 1 (publication No. CN 11505997a intelligent data acquisition terminal device for internet of things) discloses an intelligent data acquisition terminal device for internet of things, which includes a data receiving terminal and a plurality of local area network data acquisition units, and aims to improve the transmission efficiency of important data. However, the file only optimizes the network structure and the data interaction process of the data acquisition terminal device from the communication point of view, and does not mention a specific hardware scheme and a physical device control scheme.
Disclosure of Invention
The invention aims to provide a plug-and-play internet of things centralized control terminal based on CAT1, which aims to solve the problems in the prior art that: the hardware scheme of the terminal equipment of the Internet of things is not flexible enough, can not be compatible with CAT.1 standard, can not realize local management and control of physical equipment, and can not be used in a plug-and-play mode due to the customized design.
In order to achieve the purpose, the invention provides the following technical scheme: a plug and play thing networking centralized control terminal based on CAT1, includes central processing module, wherein: the central processing module is respectively connected with the communication processing module, the data processing module, the equipment control processing module, the protection processing module and the data storage module; the communication processing module consists of a CAT.1 module, an RS485 communication module and an Ethernet communication module.
Preferably, the central processing module is composed of an embedded ARM.
Preferably, the communication processing module can directly perform information interaction with the cloud platform through the integrated CAT.1 module; the communication processing module can perform information interaction with a local server through the integrated RS485 communication module; the communication processing module can simultaneously perform information interaction with the local server and the cloud platform through the server by integrating the Ethernet communication module.
Preferably, the data processing module is composed of an AD conversion chip, a DA conversion chip, a temperature acquisition module, an analog acquisition module, and an analog output module.
Preferably, the data processing module at least comprises 1 voltage/current input interface, and voltage/current signals input by the voltage/current input interface are sent to the AD conversion chip after passing through the analog acquisition module, and are sent to the central processing module through the data bus after being converted by the AD conversion chip; the data processing module at least comprises 1 voltage/current output interface, and the central processing module sends digital quantity information containing a control target to the DA conversion chip, converts the digital quantity information into a voltage/current signal through the DA conversion chip, converts the voltage/current signal into a voltage/current signal through the analog quantity output module and outputs the voltage/current signal through the voltage/current output interface; the data processing module comprises 1 temperature signal input interface, an electric signal input by the temperature signal input interface is sent to the AD conversion chip after passing through the temperature acquisition module, and is sent to the central processing module through the data bus after being converted by the AD conversion chip.
Preferably, the device control processing module is composed of a photoelectric isolation circuit, a switching value acquisition module and a switching value control module.
Preferably, the device control processing module further comprises a switching value acquisition interface, and the switching value acquisition interface is transmitted to the photoelectric isolation module after passing through the switching value acquisition module and is transmitted to the central processing module through the photoelectric isolation module; the equipment control processing module further comprises a switching value output interface, and the central processing module is sent to the switching value output module after passing through the photoelectric isolation module and is sent to the switching value output interface through the switching value output module.
Preferably, the protection processing module is a temperature protection module, and the temperature protection module is connected with the data processing module.
Preferably, the data storage module is composed of an SD card read-write module and a FLASH read-write module.
Preferably, the plug-and-play internet of things centralized control terminal based on CAT1 further comprises a power supply module and a crystal oscillator module; the power supply module supplies power to the central processing module, the communication processing module, the data processing module, the equipment control processing module, the data storage module and the protection processing module; the crystal oscillator module supplies power to the central processing module, the communication processing module, the data processing module, the equipment control processing module, the data storage module and the protection processing module to provide accurate clock RTC signals.
The plug-and-play internet of things centralized control terminal based on CAT1 has the technical effects and advantages that:
1. the technical scheme integrates a CAT.1 standard communication module, supports a 4G/5G communication system, and can directly perform data interaction with a cloud platform;
2. the technical scheme provides a universal hardware architecture of the centralized control terminal of the Internet of things, and the universal hardware architecture has the advantages of rich interfaces, expandable functions, wide application range, plug and play and the like.
Drawings
FIG. 1 is a functional block diagram of the present invention;
fig. 2 is a schematic diagram of the hardware scheme of the present invention.
In the figure: 1. a central processing module; 2. a communication processing module; 3. a data processing module; 4. a device control processing module; 5. a protection processing module; 6. a data storage module; 7. a power supply module; 8. and a crystal oscillator module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1-2 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 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.
The invention provides a plug-and-play internet of things centralized control terminal based on CAT1, as shown in FIGS. 1-2, comprising a central processing module 1, wherein: the central processing module 1 is respectively connected with the communication processing module 2, the data processing module 3, the equipment control processing module 4, the protection processing module 5 and the data storage module 6, and the central processing module 1 is composed of an embedded ARM.
The communication processing module 2 is composed of a CAT.1 module, an RS485 communication module and an Ethernet communication module.
1. The communication processing module 2 supports a 4G/5G communication system through an embedded communication module integrated with a CAT.1 standard protocol, and can directly perform information interaction with a cloud platform.
2. The communication processing module 2 supports a serial port communication protocol through the integrated RS485 communication module, and can perform information interaction with a local server.
3. The communication processing module 2 supports a TCP/IP communication protocol through the integrated Ethernet communication module, and can perform information interaction with the local server and the cloud platform through the server.
Specifically, the data processing module 3 is composed of an AD conversion chip, a DA conversion chip, a temperature acquisition module, an analog acquisition module, and an analog output module.
1. The data processing module 3 at least comprises 1 voltage/current input interface which can be selectively matched and supports at most 3 paths; and the voltage/current signal input by the voltage/current input interface is sent to the AD conversion chip after passing through the analog quantity acquisition module, and the AD conversion chip converts the voltage/current analog quantity signal into a digital signal and sends the digital signal to the ARM core chip through the data bus.
2. The data processing module 3 at least comprises 1 voltage/current output interface which can be selectively matched and supports at most 3 paths; and the ARM core chip sends the digital quantity information containing the control target to the DA conversion chip through a data bus, the DA conversion chip converts the digital quantity information containing the control target into analog quantity information containing the control target, and the analog quantity information is converted into a voltage/current signal through the analog quantity output module and then is output through the voltage/current output interface.
3. The data processing module 3 comprises 1 temperature signal input interface, the electric signal input by the temperature signal input interface is sent to the AD conversion chip after passing through the temperature acquisition module, and the AD conversion chip converts the electric signal analog quantity signal into a digital signal and then sends the digital signal into the ARM core chip through the data bus.
Specifically, the device control processing module 4 is composed of a photoelectric isolation circuit, a switching value acquisition module and a switching value control module.
1. The equipment control processing module 4 further comprises switching value acquisition interfaces, the number of the switching value acquisition interfaces is at most 4, workers in the field can select and match the switching value acquisition interfaces according to requirements, and the switching value acquisition interfaces are transmitted to the photoelectric isolation module after passing through the switching value acquisition module and are transmitted to the central processing module 1 through the photoelectric isolation module;
2. the device control processing module 4 further comprises switching value output interfaces, the switching value output interfaces are at most 4, workers in the field can select and match according to requirements, and the central processing module 1 is sent to the switching value output module after passing through the photoelectric isolation module and is sent to the switching value output interfaces through the switching value output module.
Specifically, protection processing module 5 is temperature protection module, just temperature protection module is connected with data processing module 3, and through the setting of temperature acquisition module, temperature signal can directly send into temperature protection module, and upper and lower limit through setting up temperature protection threshold value adjustment temperature protection is at many industrial application scene, and is very necessary to the temperature monitoring of equipment, sets up the temperature protection module that can match, and the accessible installs PT100 sensor additional, gathers the control temperature data in real time.
Specifically, the data storage module 6 is composed of an SD card read-write module and a FLASH read-write module, the SD card and FLASH storage capacities can be specified, and the lowest configuration supports a 16G SD card memory and a 1G FLASH memory, and the highest configuration supports a 128G SD card memory and a 4G FLASH memory.
Specifically, the plug-and-play internet of things centralized control terminal based on CAT1 further includes a power supply module 7 and a crystal oscillator module 8.
The power supply module 7 adopts 220V input, supplies power to the central processing module 1, the communication processing module 2, the data processing module 3, the equipment control processing module 4, the data storage module 6 and the protection processing module 5 after converting into a plurality of direct current interface voltage grades, and workers in the field can also add a micro battery assembly according to needs, and can still normally work in a short time after an external power supply suddenly supplies power abnormally, so that the running stability of the centralized control terminal is ensured.
The crystal oscillator module 8 supplies power to the central processing module 1, the communication processing module 2, the data processing module 3, the device control processing module 4, the data storage module 6 and the protection processing module 5 to provide an accurate clock RTC signal, and can provide an accurate time reference.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a plug and play thing networking centralized control terminal based on CAT1, includes central processing module (1), its characterized in that:
the central processing module (1) is respectively connected with the communication processing module (2), the data processing module (3), the equipment control processing module (4), the protection processing module (5) and the data storage module (6);
the communication processing module (2) is composed of a CAT.1 module, an RS485 communication module and an Ethernet communication module.
2. The CAT 1-based plug-and-play IOT centralized control terminal according to claim 1, wherein: the central processing module (1) is composed of an embedded ARM.
3. The CAT 1-based plug-and-play IOT centralized control terminal according to claim 1, wherein: the communication processing module (2) can directly perform information interaction with the cloud platform through the integrated CAT.1 module;
the communication processing module (2) can perform information interaction with a local server through the integrated RS485 communication module;
the communication processing module (2) can perform information interaction with the local server and the cloud platform through the server through the integrated Ethernet communication module.
4. The CAT 1-based plug-and-play IOT centralized control terminal according to claim 1, wherein: the data processing module (3) is composed of an AD conversion chip, a DA conversion chip, a temperature acquisition module, an analog quantity acquisition module and an analog quantity output module.
5. The CAT 1-based plug-and-play IOT centralized control terminal according to claim 3, wherein: the data processing module (3) at least comprises 1 voltage/current input interface, and voltage/current signals input by the voltage/current input interface are sent to the AD conversion chip after passing through the analog quantity acquisition module, and are transmitted to the central processing module (1) through a data bus after being converted by the AD conversion chip;
the data processing module (3) at least comprises 1 voltage/current output interface, and the central processing module (1) sends digital quantity information containing a control target to the DA conversion chip, converts the digital quantity information into a voltage/current signal through the analog quantity output module after the digital quantity information is converted by the DA conversion chip, and outputs the voltage/current signal through the voltage/current output interface;
the data processing module (3) comprises 1 temperature signal input interface, the electric signal input by the temperature signal input interface is sent to the AD conversion chip after passing through the temperature acquisition module, and is sent to the central processing module (1) through the data bus after being converted by the AD conversion chip.
6. The CAT 1-based plug-and-play IOT centralized control terminal according to claim 1, wherein: the equipment control processing module (4) is composed of a photoelectric isolation circuit, a switching value acquisition module and a switching value control module.
7. The CAT 1-based plug-and-play IOT centralized control terminal according to claim 6, wherein: the equipment control processing module (4) further comprises a switching value acquisition interface, and the switching value acquisition interface is transmitted to the photoelectric isolation module after passing through the switching value acquisition module and is transmitted to the central processing module (1) through the photoelectric isolation module;
the equipment control processing module (4) further comprises a switching value output interface, and the central processing module (1) is sent to the switching value output module after passing through the photoelectric isolation module and is sent to the switching value output interface through the switching value output module.
8. The CAT 1-based plug-and-play IOT centralized control terminal according to claim 1, wherein: the protection processing module (5) is a temperature protection module, and the temperature protection module is connected with the data processing module (3).
9. The CAT 1-based plug-and-play IOT centralized control terminal according to claim 1, wherein: the data storage module (6) is composed of an SD card read-write module and a FLASH read-write module.
10. The CAT 1-based plug-and-play IOT centralized control terminal according to claim 1, wherein: the plug-and-play internet of things centralized control terminal based on CAT1 further comprises a power supply module (7) and a crystal oscillator module (8);
the power supply module (7) supplies power to the central processing module (1), the communication processing module (2), the data processing module (3), the equipment control processing module (4), the data storage module (6) and the protection processing module (5);
the crystal oscillator module (8) supplies power to the central processing module (1), the communication processing module (2), the data processing module (3), the equipment control processing module (4), the data storage module (6) and the protection processing module (5) to provide accurate clock RTC signals.
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| CN202110493924.XA CN113093633A (en) | 2021-05-07 | 2021-05-07 | Plug-and-play internet of things centralized control terminal based on CAT1 |
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| CN202110493924.XA CN113093633A (en) | 2021-05-07 | 2021-05-07 | Plug-and-play internet of things centralized control terminal based on CAT1 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172941A (en) * | 2021-11-02 | 2022-03-11 | 天津市渤海新能科技有限公司 | Data processing method for Internet of things |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172941A (en) * | 2021-11-02 | 2022-03-11 | 天津市渤海新能科技有限公司 | Data processing method for Internet of things |
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Application publication date: 20210709 |