CN219268877U - Modbus gateway device of low-orbit satellite Internet of things - Google Patents
Modbus gateway device of low-orbit satellite Internet of things Download PDFInfo
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- CN219268877U CN219268877U CN202320075329.9U CN202320075329U CN219268877U CN 219268877 U CN219268877 U CN 219268877U CN 202320075329 U CN202320075329 U CN 202320075329U CN 219268877 U CN219268877 U CN 219268877U
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Abstract
The application relates to a low orbit satellite thing networking modbus gateway device, it includes: the system comprises a controller, a modbus slave device, an RS485 communication module, a data storage module and a communication baseband module, wherein the modbus slave device is used for monitoring the environment around the modbus slave device and sending out intelligent instrument data signals; one end of the RS485 communication module is connected with the modbus slave equipment and is used for receiving the intelligent instrument data signal; the other end of the RS485 communication module is connected with the controller and is used for sending the intelligent instrument data signal to the controller; the data storage module is connected with the controller and is used for receiving and storing the intelligent instrument data signals, and the communication baseband module is connected with the controller and is used for transmitting the intelligent instrument data signals. The method and the device can enable the Modbus gateway device of the Internet of things to realize the effects of data acquisition and satellite data transmission at the same time to a certain extent.
Description
Technical Field
The application relates to the field of satellite internet of things, in particular to a modbus gateway device of a low-orbit satellite internet of things.
Background
In recent years, satellite internet becomes an important content of a national 'new infrastructure', and low-orbit satellite internet of things is taken as an organic component of the satellite internet, and is a break of construction and application of the satellite internet. In recent years, with the rapid breakthrough of related technologies and rapid development of industries, the internet of things of low-orbit satellites is entering a key stage before explosion. The satellite is different from a medium-high orbit communication satellite with the length of more than 2 ten thousand kilometers, and a low-orbit internet of things satellite generally runs at an orbit height of 500-1200 kilometers, and has the advantages of low risk, low cost, quick response, all-weather communication and the like. The low-orbit satellite Internet of things can effectively solve the problem that the existing air, ocean and more than 80% of land are not covered by the network. And the method is a most economical and practical solution for realizing everything interconnection by matching with a ground network due to the characteristics of lower transmission loss and low time delay, provides support for industrial digital transformation, intelligent upgrading, fusion innovation and the like, accelerates digital Chinese construction, and preempts digital economic development initiative.
In the prior art, the low-orbit satellite internet of things communication terminal only has a communication function, data of an earth surface sensor cannot be actively read, a special modbus gateway device is required to be adopted to collect data of equipment terminals such as intelligent instruments using a modbus protocol on the earth surface, the data are transmitted to a satellite, but the low-orbit satellite internet of things modbus gateway device cannot conduct data collection and satellite data transmission at the same time.
Disclosure of Invention
In order to overcome the defect that a modbus gateway device cannot collect data and transmit satellite data at the same time to a certain extent, the application provides a modbus gateway device of the low-orbit satellite Internet of things.
The application provides a low orbit satellite thing networking modbus gateway device adopts following technical scheme:
the Modbus gateway device of the low-orbit satellite Internet of things comprises a controller, a Modbus slave device, an RS485 communication module, a data storage module and a communication baseband module, wherein the Modbus slave device is a device terminal of an intelligent instrument using a modbus protocol, and is used for sending intelligent instrument data signals; one end of the RS485 communication module is connected with the modbus slave equipment and is used for receiving the intelligent instrument data signal; the other end of the RS485 communication module is connected with the controller and is used for sending out the intelligent instrument data signal; the data storage module is connected with the controller and is used for receiving and storing the intelligent instrument data signals, and the communication baseband module is connected with the controller and is used for transmitting the intelligent instrument data signals.
Through adopting above-mentioned technical scheme, the controller obtains the intelligent instrument data signal that modbus slave unit equipment monitored through control RS485 communication module to through the intelligent instrument data signal of data storage module storage, can control radio frequency transmission module and send out intelligent instrument data signal, can make the internet of things modbus gateway device realize data acquisition and transmission satellite data simultaneously to a certain extent.
Optionally, the moddbus slave device includes a plurality of modbus slave sub-devices.
Optionally, a satellite is also included, the satellite being configured to transmit satellite broadcast signals.
Optionally, the communication baseband module includes a signal modulation module and a radio frequency transmission module, and the signal modulation module is connected with the radio frequency transmission module;
the signal modulation module is connected with the radio frequency transmission module;
the signal modulation module is used for modulating the intelligent instrument data signal;
the radio frequency transmitting module is used for transmitting the intelligent instrument data signals.
Optionally, the communication baseband module further includes a signal demodulation module and a radio frequency receiving module, where the signal demodulation module is connected with the radio frequency receiving module;
the radio frequency receiving module is used for receiving the satellite broadcast signals;
the signal demodulation module is used for demodulating the satellite broadcast signal.
Optionally, the controller is configured to send an instruction acquisition signal every first time period;
the RS485 communication module receives the instruction acquisition signal and transmits an acquisition data signal;
the modbus slave equipment receives the acquired data signals and sends intelligent instrument data signals;
the RS485 communication module receives the intelligent instrument data signal and sends the intelligent instrument data signal to the controller;
the controller is used for processing the intelligent instrument data signals into signals which can be stored by the data storage module and storing the intelligent instrument data signals into the data storage module.
By adopting the technical scheme, the controller can acquire the intelligent instrument data signals monitored by the modbus slave equipment at intervals of a first time period and store the intelligent instrument data signals into the data storage module.
Optionally, the controller is configured to turn on the communication baseband module every second time period;
the radio frequency receiving module does not receive satellite broadcast signals in a third time period, and the communication baseband module is closed;
the third time period is less than the second time period.
By adopting the technical scheme, the controller can open the communication baseband module at regular time, and the radio frequency receiving module can close the communication baseband module when satellite broadcast signals are not received in the third time period, so that the opening time of the communication baseband module can be reduced, and the total power of the communication baseband module is reduced.
Optionally, when the radio frequency receiving module receives the satellite broadcast signal, the radio frequency receiving module sends out an acquisition signal;
the controller receives the acquisition signal and sends out a release signal;
the data storage module receives the release signal and sends out the intelligent instrument data signal stored by the data storage module;
the signal modulation module receives the intelligent instrument data signal and modulates the intelligent instrument data signal into a signal which can be processed by the radio frequency transmission module and then sends the signal;
the radio frequency transmitting module transmits the intelligent instrument data signal modulated by the signal modulating module;
the satellite sends a feedback signal after receiving the intelligent instrument data signal;
and the communication baseband module is closed after the radio frequency receiving module receives the feedback signal.
Optionally, the system further comprises a power module connected with the controller, wherein the power module is used for supplying power to the controller.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the controller acquires intelligent instrument data signals monitored by the modbus slave device through controlling the RS485 communication module, and stores the intelligent instrument data signals through the data storage module, so that the radio frequency transmission module can be controlled to transmit the intelligent instrument data signals, and the Modbus gateway device of the Internet of things can realize data acquisition and satellite data transmission at the same time to a certain extent;
2. the controller can acquire intelligent instrument data signals monitored by the modbus slave equipment at intervals of a first time period and store the intelligent instrument data signals into the data storage module;
3. the controller can open the communication baseband module at regular time, and the radio frequency receiving module can close the communication baseband module when the satellite broadcast signal is not received in the third time period, so that the opening time of the communication baseband module can be reduced, and the total power of the communication baseband module is reduced.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a modbus gateway device of a low-orbit satellite internet of things according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a connection relationship between a low-orbit satellite internet of things modbus gateway device according to an embodiment of the present application.
Fig. 3 is a schematic flow chart of a part of a modbus gateway device of the internet of things of low-orbit satellite according to an embodiment of the application.
Reference numerals illustrate: 1. a controller; 3. a communication baseband module; 31. a signal modulation module; 32. a signal demodulation module; 33. a radio frequency transmission module; 34. a radio frequency receiving module; 4. an RS485 communication module; 5. a data storage module; 6. a power module; 7. modbus slave devices; 71. modbus slave devices; 8. a satellite; 9. satellite ground stations.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
The embodiment of the application discloses a modbus gateway device of a low-orbit satellite Internet of things. Referring to fig. 1, a modbus gateway device of a low-orbit satellite internet of things comprises a controller 1, a communication baseband module 3, an RS485 communication module 4, a data storage module 5, a power supply module 6, a modbus slave device 7, a satellite 8 and a satellite ground station.
Referring to fig. 1, a controller 1 is connected with a data storage module 5, a communication baseband module 3, an RS485 communication module 4 and a power module 6, the communication baseband module 3 includes a signal modulation module 31, a signal demodulation module 32, a radio frequency transmission module 33 and a radio frequency reception module 34, the radio frequency transmission module 33 is connected with the signal modulation module 31, the signal modulation module 31 is used for modulating a signal into a signal which can be transmitted by the radio frequency transmission module 33, the radio frequency reception module 34 is connected with the signal demodulation module 32, and the signal demodulation module 32 is used for demodulating a received signal into a signal which can be processed by the controller 1; the RS485 communication module 4 is connected with the modbus slave equipment 7 and is used for receiving and transmitting intelligent instrument data signals sent by the modbus slave equipment 7.
Referring to fig. 2, the modbus slave device 7 includes a plurality of modbus slave sub-devices 71, and the plurality of modbus slave sub-devices 71 are connected to the RS485 communication module 4.
In a specific example, the modbus slave device 71 may be a series of detection devices such as a humidity sensor, a temperature sensor, and the like, the humidity sensor detecting the humidity of the surrounding environment and emitting a humidity detection signal, the temperature sensor detecting the temperature of the surrounding environment and emitting a temperature detection signal, and the smart meter data signal includes all signals emitted by the modbus slave device 71, including, for example, a temperature detection signal and a humidity detection signal.
Each modbus slave device 71 operates independently, for example, during a specific operation, a certain modbus slave device 71 is a temperature sensor, the temperature sensor detects the ambient temperature and sends a temperature detection signal to the RS485 communication module 4, and the RS485 communication module 4 receives the temperature detection signal and sends the temperature detection signal to the controller 1.
Referring to fig. 1 and 2, the controller 1 transmits an instruction acquisition signal every a first period of time, the RS485 communication module 4 receives the instruction acquisition signal and transmits an acquisition data signal, the modbus slave device 7 receives the acquisition data signal and transmits a smart meter data signal to the RS485 communication module 4, the RS485 communication module 4 receives the smart meter data signal and transmits the smart meter data signal to the controller 1, and the controller 1 receives the smart meter data signal and stores the smart meter data signal in the data storage module 5.
It will be appreciated that the modbus slave device 7 includes a plurality of modbus slave sub-devices 71, each of the plurality of modbus slave sub-devices 71 receiving the acquisition data signal.
With continued reference to fig. 1 and fig. 2, the satellite 8 is configured to transmit a satellite broadcast signal, the controller 1 controls the communication baseband module 3 to be turned on every second time period, and the radio frequency receiving module 34 in the communication baseband module 3 is configured to receive the satellite broadcast signal transmitted by the satellite 8 after being turned on, and in the third time period, the radio frequency receiving module 34 does not receive the satellite broadcast signal, which indicates that the satellite 8 does not reach the signal receiving range of the address where the embodiment of the present application is located, and the communication baseband module 3 is turned off, so as to reduce the turn-on time of the communication baseband module 3, thereby reducing the total power of the embodiment of the present application; the closing mode of the communication baseband module 3 may be timing closing, that is, a timing closing instruction is built in the communication baseband module 3, when the communication baseband module 3 is opened, timing is started, and if the communication baseband module 3 does not have any operation in the third time period, the communication baseband module 3 is closed.
If the satellite 8 reaches the signal receiving range of the address in the embodiment of the application, the radio frequency receiving module 34 receives the satellite broadcast signal, after the radio frequency receiving module 34 receives the satellite broadcast signal, the radio frequency receiving module 34 sends out an acquisition signal, the controller 1 receives the acquisition signal and sends out a release signal, the data storage module 5 receives the release signal and sends out an intelligent instrument data signal stored in the data storage module 5, the signal modulation module 31 receives the intelligent instrument data signal and modulates the intelligent instrument data signal into a signal which can be sent by the radio frequency sending module 33, and then the radio frequency sending module 33 sends out the intelligent instrument data signal processed by the signal modulation module 31.
The satellite 8 receives the processed intelligent instrument data signals and sends out feedback signals; the radio frequency receiving module 34 receives the feedback signal, the communication baseband module 3 is closed, and the data transmission task is finished at this time; the closing mode may be that the radio frequency receiving module 34 receives the feedback signal and sends the feedback signal to the controller 1, and the controller 1 controls the communication baseband module 3 to close after receiving the feedback signal.
With continued reference to fig. 1, the device further includes a power module 6, where the power module 6 is connected to the controller 1, and the power module 6 is used to supply power to the controller 1, the communication baseband module 3, the RS485 communication module 4, and the data storage module 5.
Referring to fig. 3, the system further includes a satellite ground station, wherein the satellite 8 transmits a satellite broadcast signal, the satellite ground station receives the satellite broadcast signal and transmits an acquisition satellite signal, the satellite 8 receives the acquisition satellite signal and transmits the satellite signal, and the satellite ground station receives the satellite signal and stores the satellite signal, so that a user can conveniently refer to the intelligent instrument data signal detected by the modbus slave device 7.
The implementation principle of the modbus gateway device of the low-orbit satellite Internet of things is as follows: the satellite 8 transmits satellite broadcast signals, the controller 1 obtains intelligent instrument data signals monitored by the modbus slave device 7 by controlling the RS485 communication module 4 every first time, and stores the intelligent instrument data signals into the data storage module 5, and the controller 1 interacts with the satellite 8 and sends the intelligent instrument data signals in the data storage module 5 to the satellite 8 every second time by starting the radio frequency receiving module 34, so that the Modbus gateway device of the Internet of things can realize data acquisition and satellite 8 data transmission at the same time to a certain extent.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. A low orbit satellite internet of things modbus gateway device, comprising: the device comprises a controller (1), a modbus slave device (7), an RS485 communication module (4), a data storage module (5) and a communication baseband module (3), wherein the modbus slave device (7) is a device terminal of a smart meter using a modbus protocol, and the modbus slave device (7) is used for sending a smart meter data signal; one end of the RS485 communication module (4) is connected with the modbus slave device (7) and is used for receiving the intelligent instrument data signal; the other end of the RS485 communication module (4) is connected with the controller (1) and is used for sending out the intelligent instrument data signal; the intelligent instrument data transmission system comprises a controller (1), a data storage module (5), a communication baseband module (3) and a data transmission module, wherein the data storage module (5) is connected with the controller (1), the data storage module (5) is used for receiving and storing the intelligent instrument data signals, and the communication baseband module (3) is connected with the controller (1) and is used for transmitting the intelligent instrument data signals.
2. The low-orbit satellite internet of things modbus gateway apparatus according to claim 1, wherein the modbus slave device (7) comprises a plurality of modbus slave sub-devices (71).
3. The low-orbit satellite internet of things modbus gateway device according to claim 1, further comprising a satellite (8), the satellite (8) being configured to transmit satellite broadcast signals.
4. A modbus gateway device for low orbit satellite internet of things as claimed in claim 3, characterized in that the communication baseband module (3) comprises a signal modulation module (31) and a radio frequency transmission module (33), the signal modulation module (31) being connected with the radio frequency transmission module (33);
the signal modulation module (31) is connected with the radio frequency transmission module (33);
the signal modulation module (31) is used for modulating the intelligent instrument data signal;
the radio frequency transmission module (33) is used for transmitting the intelligent instrument data signal.
5. The modbus gateway device of claim 4, wherein the communication baseband module (3) further comprises a signal demodulation module (32) and a radio frequency receiving module (34), and the signal demodulation module (32) is connected to the radio frequency receiving module (34);
the radio frequency receiving module (34) is used for receiving the satellite broadcast signals;
the signal demodulation module (32) is used for demodulating the satellite broadcast signal.
6. The modbus gateway device of the internet of things of low orbit satellite according to claim 5, wherein the controller (1) is configured to send out an instruction acquisition signal every first time period;
the RS485 communication module (4) receives the instruction acquisition signal and transmits an acquisition data signal;
the modbus slave equipment (7) receives the acquired data signals and transmits intelligent instrument data signals;
the RS485 communication module (4) receives intelligent instrument data signals and sends the intelligent instrument data signals to the controller (1);
the controller (1) is used for processing the intelligent instrument data signals into signals which can be stored by the data storage module (5) and storing the intelligent instrument data signals into the data storage module (5).
7. The modbus gateway device of the internet of things of low orbit satellite according to claim 6, wherein the controller (1) is configured to turn on the communication baseband module (3) every second time period;
the radio frequency receiving module (34) does not receive satellite broadcast signals in a third time period, and the communication baseband module (3) is closed;
the third time period is less than the second time period.
8. The modbus gateway device of claim 7, wherein the radio frequency receiving module (34) sends out an acquisition signal when the radio frequency receiving module (34) receives the satellite broadcast signal;
the controller (1) receives the acquisition signal and sends out a release signal;
the data storage module (5) receives the release signal and sends out the intelligent instrument data signal stored by the data storage module (5);
the signal modulation module (31) receives the intelligent instrument data signal and modulates the intelligent instrument data signal into a signal which can be processed by the radio frequency transmission module (33) and then sends the signal;
the radio frequency transmitting module (33) transmits the intelligent instrument data signal modulated by the signal modulating module (31);
the satellite (8) receives the intelligent instrument data signal and then sends a feedback signal;
and the communication baseband module (3) is closed after the radio frequency receiving module (34) receives the feedback signal.
9. The modbus gateway device of the low-orbit satellite internet of things according to claim 1, further comprising a power module (6) connected with the controller (1), wherein the power module (6) is used for supplying power to the controller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320075329.9U CN219268877U (en) | 2023-01-10 | 2023-01-10 | Modbus gateway device of low-orbit satellite Internet of things |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320075329.9U CN219268877U (en) | 2023-01-10 | 2023-01-10 | Modbus gateway device of low-orbit satellite Internet of things |
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| CN219268877U true CN219268877U (en) | 2023-06-27 |
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| CN202320075329.9U Active CN219268877U (en) | 2023-01-10 | 2023-01-10 | Modbus gateway device of low-orbit satellite Internet of things |
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