CN114779302A - Low-power-consumption Internet of things equipment based on PPP-RTK technology and control method thereof - Google Patents
Low-power-consumption Internet of things equipment based on PPP-RTK technology and control method thereof Download PDFInfo
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- CN114779302A CN114779302A CN202210701069.1A CN202210701069A CN114779302A CN 114779302 A CN114779302 A CN 114779302A CN 202210701069 A CN202210701069 A CN 202210701069A CN 114779302 A CN114779302 A CN 114779302A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/43—Determining position using carrier phase measurements, e.g. kinematic positioning; using long or short baseline interferometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/34—Power consumption
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y40/00—IoT characterised by the purpose of the information processing
- G16Y40/60—Positioning; Navigation
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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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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computing Systems (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Signal Processing (AREA)
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Abstract
The embodiment of the invention discloses a low-power-consumption Internet of things device based on a PPP-RTK technology and a control method thereof. If the device moves, the PPP-RTK service is acquired online to obtain the position information of the device, the position information is sent to a server through a network, and then the device enters a low power consumption mode. In the low power consumption mode, the device is not woken up and the position information is not updated. The invention realizes rapid high-precision positioning by acquiring PPP-RTK service on line, and the horizontal static positioning precision can be converged to centimeter level within 30 seconds. The invention enters the low power consumption mode immediately after sending the position information, and only wakes up the equipment when the acceleration sensor detects that the equipment moves, thereby effectively reducing the power consumption of the equipment.
Description
Technical Field
The invention relates to the field of Internet of things equipment, in particular to low-power-consumption Internet of things equipment based on a PPP-RTK technology and a control method thereof.
Background
The realization of the internet of things technology depends on the measurement and positioning information of the terminal. The Internet of things equipment is characterized by slow relative movement and long-term static state, such as road traffic facilities like warning boards and road cones, and high-precision position information is required in the aspects of intelligent driving, Internet of vehicles, path planning and the like, so that data support is provided for the equipment.
Currently, some intelligent low-cost internet of things devices, such as warning signs and road cones, appear on the market. The principle is that Real-Time dynamic code phase difference (RTD) technology and Real-Time dynamic carrier phase difference (RTK) technology are adopted, and Real-Time sub-meter, decimeter and centimeter positioning accuracy is realized based on a Continuous Operating Reference States (CORS) network.
On the one hand, the RTD/RTK technology of the network depends on the layout of a dense base station network, and the running cost is undoubtedly increased. On the other hand, the internet of things devices are generally powered by batteries, and in order to reduce the maintenance cost and ensure the continuous operation time, the power consumption needs to be reduced as much as possible. The network RTD/RTK technique requires on-line real-time acquisition of differential correction data, which undoubtedly increases the power consumption of the device.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a low-power consumption internet of things device based on PPP-RTK technology and a control method thereof, which do not depend on densely-arranged base stations to realize high-precision positioning and have the characteristic of low power consumption.
In order to solve the technical problem, the embodiment of the invention provides a low-power consumption internet of things device based on a PPP-RTK technology, wherein a low-power consumption acceleration sensor is arranged in the device, and the device acquires the motion state of the device in a low-power consumption mode through the acceleration sensor; if the equipment moves, the PPP-RTK service is acquired online to obtain the position information of the equipment, the position information is sent to a server through a network, and then the equipment enters a low power consumption mode; and in the low power consumption mode, the equipment is not awakened, and the position information is not updated.
Correspondingly, the embodiment of the invention also provides a control method of the low-power consumption Internet of things equipment based on the PPP-RTK technology, which comprises the following steps:
step 1: the PPP-RTK service is acquired online, the high-precision positioning is carried out quickly, the initial position of the equipment is obtained, the initial position is sent to a server through a network, and then the low-power-consumption mode is entered;
and 2, step: detecting whether the equipment is in a static state through an acceleration sensor:
(1) if the mobile terminal is in the static state, the equipment is not awakened, and the position information is not updated;
(2) if the mobile terminal moves, the acceleration sensor is interrupted, the equipment is awakened and the operation in the step 1 is carried out, the position information of the equipment is updated, and then the acceleration sensor is started;
and 3, step 3: repeating (1) and (2) in step 2.
The invention has the beneficial effects that: the invention realizes rapid high-precision positioning by acquiring PPP-RTK service on line, and the horizontal static positioning precision can be converged to centimeter level within 30 seconds. Compared with a network RTK/RTD technology, the base station does not need to be densely arranged, and the cost for arranging the base station is saved. The invention enters the low power consumption mode immediately after sending the position information, and only wakes up the equipment when the acceleration sensor detects that the equipment moves, thereby effectively reducing the power consumption of the equipment.
Drawings
Fig. 1 is a schematic structural diagram of a low-power consumption internet of things device based on a PPP-RTK technology according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict, and the present invention is further described in detail with reference to the drawings and specific embodiments.
The Precision Point Positioning (PPP) technology and the RTK technology are most widely applied in high-precision satellite navigation Positioning. The PPP technology does not need to erect a base station, and based on the carrier phase observation value, after the ambiguity is fixed, a static positioning solution with millimeter-scale to centimeter-scale precision can be obtained. But the first fixed time of the PPP ambiguity is longer, and the real-time performance of positioning is poorer. The RTK technology can realize instantaneous centimeter-level positioning accuracy, but needs to densely arrange base stations, and has higher operation cost. The PPP-RTK technology integrates the advantages of the PPP and the RTK technology, a base station network does not need to be densely concentrated, and the positioning precision in the horizontal direction can be converged to a centimeter level within one minute.
Currently, the PPP-RTK technology is a research hotspot in the GNSS field and is greatly concerned by many scholars and navigation practitioners at home and abroad. The main principle of PPP-RTK technology is as follows: the method comprises the steps that GNSS data of a reference station network are processed in real time at a server side, and main error sources of the GNSS are separated and respectively modeled based on a state space; at the user terminal, the user in the service range receives the error corrections in real time, and realizes high-precision positioning based on PPP-AR (ambiguity resolution).
The positioning service mode of the PPP-RTK technology is flexible. In the service scope, if there is no base station, PPP-RTK degenerates to PPP mode.
The method is characterized in that the equipment of the Internet of things is slow in relative movement and is in a static state for a long time, and in practical application, the equipment is static at a certain point for a long time without acquiring position information of the equipment in real time. The PPP-RTK technology is applied to the Internet of things equipment which is slow in relative movement and is in a static state for a long time, such as road traffic facilities like construction boards, warning boards, anti-collision barrels, road cones and the like, base stations do not need to be densely arranged, and the operation cost is saved.
As shown in fig. 1, a low-power-consumption acceleration sensor is built in the low-power-consumption internet of things device based on the PPP-RTK technology, and the motion state of the device in the low-power-consumption mode is acquired through the acceleration sensor. If the device moves, the PPP-RTK service is acquired online to obtain the position information of the device, the position information is sent to a server through a network, and then the device enters a low power consumption mode. In the low power consumption mode, the device is not woken up and the position information is not updated. The acceleration sensor can detect the motion state of the equipment in a low power consumption state, and generates an interrupt when the equipment moves to wake up the equipment. Therefore, when the device is in a static state through detection, the PPP-RTK service is acquired online to obtain the position information of the device, the position information is sent to the server through the network, and then the device enters a low power consumption mode, so that the power consumption of the device is effectively reduced.
The control method of the low-power-consumption Internet of things equipment based on the PPP-RTK technology comprises the following steps:
step 1: the PPP-RTK service is acquired online, the high-precision positioning is carried out quickly, the initial position of the equipment is obtained, the initial position is sent to a server through a network, and then the low-power-consumption mode is entered;
step 2: detecting whether the equipment is in a static state through an acceleration sensor:
(1) if the mobile terminal is in the static state, the equipment is not awakened, and the position information is not updated;
(2) if the mobile terminal moves, the acceleration sensor is interrupted, the equipment is awakened and the operation in the step 1 is carried out, the position information of the equipment is updated, and then the acceleration sensor is started;
and step 3: repeating (1) and (2) in step 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The low-power-consumption Internet of things equipment based on the PPP-RTK technology is characterized in that a low-power-consumption acceleration sensor is arranged in the equipment, and the equipment acquires the motion state of the equipment in a low-power-consumption mode through the acceleration sensor; if the equipment moves, the PPP-RTK service is acquired online to obtain the position information of the equipment, the position information is sent to a server through a network, and then the equipment enters a low power consumption mode; and in the low power consumption mode, the equipment is not awakened, and the position information is not updated.
2. A control method of low-power-consumption Internet of things equipment based on PPP-RTK technology is characterized by comprising the following steps:
step 1: the PPP-RTK service is acquired online, the PPP-RTK service is positioned quickly and accurately, the initial position of the equipment is obtained and is sent to a server through a network, and then the low-power-consumption mode is entered;
and 2, step: detecting whether the equipment is in a static state through an acceleration sensor:
(1) if the mobile terminal is in the static state, the equipment is not awakened, and the position information is not updated;
(2) if the mobile terminal moves, the acceleration sensor is interrupted, the equipment is awakened and the operation in the step 1 is carried out, the position information of the equipment is updated, and then the acceleration sensor is started;
and 3, step 3: repeating (1) and (2) in step 2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210701069.1A CN114779302A (en) | 2022-06-21 | 2022-06-21 | Low-power-consumption Internet of things equipment based on PPP-RTK technology and control method thereof |
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| CN202210701069.1A CN114779302A (en) | 2022-06-21 | 2022-06-21 | Low-power-consumption Internet of things equipment based on PPP-RTK technology and control method thereof |
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