CN112731478A - Low-power-consumption operation method of positioning terminal - Google Patents
Low-power-consumption operation method of positioning terminal Download PDFInfo
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- CN112731478A CN112731478A CN202010843527.6A CN202010843527A CN112731478A CN 112731478 A CN112731478 A CN 112731478A CN 202010843527 A CN202010843527 A CN 202010843527A CN 112731478 A CN112731478 A CN 112731478A
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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
- 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
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/37—Hardware or software details of the signal processing chain
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
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- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a low-power-consumption operation method of a positioning terminal, which comprises the following steps: s1: setting an initial period T1 for sending positioning data; s2: the positioning terminal detects whether displacement occurs in the period time, if so, the next period is set as T1, and if not, the next period is prolonged to be a dynamic period T2; this step is repeated. The invention adjusts the sending period of the data by actively judging the displacement condition, so that the sending period is longer in a static time period, which is beneficial to reducing the power consumption, and meanwhile, the initial period is kept during the displacement period, which can not reduce the precision, thereby fully playing the advantages of high precision and low power consumption under different conditions without generating contradiction.
Description
Technical Field
The invention relates to the technical field of mobile positioning, in particular to a low-power-consumption operation method of a positioning terminal.
Background
In various hardware platforms with positioning functions, most of the power consumption is concentrated on a data communication function module, and data transmission needs to be performed at a high power because long-distance transmission is needed, so that the number of data transmission times needs to be reduced by a method for reducing power consumption, but the positioning accuracy cannot be influenced. In the prior art, the transmission times are mainly reduced by setting a longer data transmission period, so that the power consumption is reduced, but the precision is influenced by the method, and in addition, errors are reduced by self-calculation in part of technologies to make up for the defect.
The invention such as the authorization notice number CN106680857B discloses a low-power-consumption positioning method based on an accelerometer and a GPS, which comprises the following steps: (1) if the GPS positioning function is in an available state, an initial positioning point is obtained by using the GPS, and if the GPS positioning function is in an unavailable state, the initial positioning point is obtained by directly using the accelerometer; (2) matching the initial positioning point to a proper road by adopting a map matching method to reduce the positioning error and obtain a matched positioning point; taking the matched locating point as the initial position of the accelerometer; (3) acquiring real-time three-dimensional acceleration projection information at each moment by using an accelerometer; (4) and acquiring the positioning information of the current moment by using the initial position of the accelerometer and the real-time three-dimensional acceleration projection information of each moment. The method disclosed by the invention periodically starts a GPS positioning function, combines the positioning calculation of an accelerometer and also combines a map matching method for road matching, so that the power consumption can be reduced on the premise of ensuring the positioning accuracy.
In the prior art, a large amount of calculation is needed to ensure the precision, more electric energy is consumed, and even if other modules reduce partial power consumption, an obvious low-power consumption effect cannot be achieved.
Disclosure of Invention
Aiming at the problem that the prior art cannot give consideration to high precision and low power consumption, the invention provides a low-power-consumption operation method of a positioning terminal, which realizes the effects of keeping necessary high precision when the positioning terminal moves frequently and keeping low power consumption when the positioning terminal is static by dynamically adjusting the data sending period, and does not cause contradiction between high precision and low power consumption.
The technical scheme of the invention is as follows.
A low-power-consumption operation method of a positioning terminal comprises the following steps: s1: setting an initial period T1 for sending positioning data; s2: the positioning terminal detects whether displacement occurs in the period time, if so, the next period is set as T1, and if not, the next period is prolonged to be a dynamic period T2; this step is repeated.
The invention adjusts the sending period of the data by actively judging the displacement condition, so that the sending period is longer in a static time period, which is beneficial to reducing the power consumption, and meanwhile, the initial period is kept during the displacement period, which can not reduce the precision, thereby fully playing the advantages of high precision and low power consumption under different conditions without generating contradiction.
Preferably, the method further comprises the step of verifying: and if the displacement does not occur in two or more continuous periods, additionally sending operation confirmation information when the positioning data is sent next time. When the positioning terminal is static for a long time, the sending period is prolonged, but the receiving end cannot judge whether the positioning terminal is in fault or normally operates in a single period, so that after the period is changed to a longer time, the operation confirmation information is sent to confirm that the positioning terminal does not displace or has fault before the data is sent.
Preferably, the determining process of the dynamic period includes: t2 = T1 an Wherein:
t1: a fixed initial period; t2: calculating the obtained dynamic period; a: representing a constant greater than one, and adjusting according to the requirements of different scenes; n: the number of cycles in which no motion is detected continuously, and once motion occurs, the value becomes 0; the value would be +1 if no motion was detected within the period. Wherein the value of a is set according to the operation environment and the carrier motion capability of the positioning terminal and generally does not exceed 10.
Preferably, whether the displacement occurs or not is detected by a three-axis acceleration sensor, the detected acceleration value in the three-axis direction is compared with a preset threshold value, and if the detected acceleration value exceeds the threshold value, the displacement of the positioning terminal is judged.
Preferably, the method further comprises the step of dynamic power adjustment: after every several times of period, the positioning terminal sends the positioning data for several times with descending power, the power received by the receiving terminal at the last time of lossless data is used as the bottom-protected power, 130% of the bottom-protected power is used as the sending power before the next dynamic power adjustment, and the sending power does not exceed the maximum power of the positioning terminal. The power is adjusted to compress energy consumption, meanwhile, in order to ensure the stability of signals before the next dynamic power adjustment, the power slightly higher than the bottom-keeping power is adopted for sending, loss of connection is prevented, and in addition, the adjustment period of the step is changed along with the adjustment of the period in the method, so that the power consumption under the static condition is further reduced.
Preferably, in the dynamic power adjustment step, the value of the period interval is adjusted according to the displacement condition of the positioning terminal, the initial value of the interval is X, the value of X is +1 every time no displacement occurs in the period, and the value of X is-1 when two periods are displaced continuously. On the basis of the dynamic change of the period, the period interval is further dynamically changed, so that the situation that the power of the positioning terminal is not timely changed when the terminal is frequently displaced, and the terminal is moved out of the coverage range of the corresponding power is avoided.
The substantial effects of the invention include: by dynamically adjusting the sending period, on the premise of ensuring the positioning precision, the reporting of repeated redundant data is reduced, so that the power consumption is reduced, and the problem that high precision and low power consumption cannot be considered at the same time is solved. Meanwhile, the transmission power is adjusted, and the electric quantity loss is further reduced.
Drawings
Fig. 1 is a schematic diagram of a dynamic period variation effect according to an embodiment of the present invention.
Detailed Description
The technical solution of the present application will be described with reference to the following examples. In addition, numerous specific details are set forth below in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
Example 1:
a low-power-consumption operation method of a positioning terminal comprises the following steps: s1: setting an initial period T1 for sending positioning data; s2: the positioning terminal detects whether displacement occurs in the period time, if so, the next period is set as T1, and if not, the next period is prolonged to be a dynamic period T2; this step is repeated.
The dynamic period determination process comprises the following steps: t2 = T1 an Wherein:
t1: a fixed initial period; t2: calculating the obtained dynamic period; a: representing a constant greater than one, and adjusting according to the requirements of different scenes; n: the number of cycles in which no motion is detected continuously, and once motion occurs, the value becomes 0; the value would be +1 if no motion was detected within the period. Wherein the value of a is set according to the operation environment and the carrier motion capability of the positioning terminal.
In which, as shown in fig. 1, the effect of the dynamic period when a is 2, white represents movement, and the shading represents stillness, and the upward tip represents that data is transmitted once per period, it can be seen that under the same movement, 41 times of data need to be transmitted in a fixed period, but the present embodiment only needs to transmit 27 times. The number of times of transmission is reduced significantly, power consumption is reduced, and accuracy is not reduced in the case of motion.
The embodiment adjusts the sending period of the data by actively judging the displacement condition, so that the sending period is longer in the static time period, the power consumption is favorably reduced, meanwhile, the initial period is kept during the displacement, the precision is not reduced, the advantages of high precision and low power consumption are fully exerted under different conditions, and no contradiction is generated.
The embodiment further comprises a verification step: and if the displacement does not occur in two or more continuous periods, additionally sending operation confirmation information when the positioning data is sent next time. When the positioning terminal is static for a long time, the sending period is prolonged, but the receiving end cannot judge whether the positioning terminal is in fault or normally operates in a single period, so that after the period is changed to a longer time, the operation confirmation information is sent to confirm that the positioning terminal does not displace or has fault before the data is sent.
In the embodiment, whether the displacement occurs or not is detected by the triaxial acceleration sensor, the detected acceleration value in the triaxial direction is compared with a preset threshold value, and if the detected acceleration value exceeds the threshold value, the displacement of the positioning terminal is judged.
The embodiment further comprises a dynamic power adjustment step: after every several times of period, the positioning terminal sends the positioning data for several times with descending power, the power received by the receiving terminal at the last time of lossless data is used as the bottom-protected power, 130% of the bottom-protected power is used as the sending power before the next dynamic power adjustment, and the sending power does not exceed the maximum power of the positioning terminal. The power is adjusted to compress energy consumption, meanwhile, in order to ensure the stability of signals before the next dynamic power adjustment, the power slightly higher than the bottom-keeping power is adopted for sending, loss of connection is prevented, and in addition, the adjustment period of the step is changed along with the adjustment of the period in the method, so that the power consumption under the static condition is further reduced.
In the dynamic power adjusting step, the value of the period interval is adjusted according to the displacement condition of the positioning terminal, the initial value of the interval is X, when no displacement occurs in the period, the value of X is +1, and when the displacement occurs in two continuous periods, the value of X is-1. On the basis of the dynamic change of the period, the period interval is further dynamically changed, so that the situation that the power of the positioning terminal is not timely changed when the terminal is frequently displaced, and the terminal is moved out of the coverage range of the corresponding power is avoided.
The substantial effects of the present embodiment include: by dynamically adjusting the sending period, on the premise of ensuring the positioning precision, the reporting of repeated redundant data is reduced, so that the power consumption is reduced, and the problem that high precision and low power consumption cannot be considered at the same time is solved. Meanwhile, the transmission power is adjusted, and the electric quantity loss is further reduced.
By contrast, in the actual factory personnel location project, under the condition that the personnel location chest card originally adopts a fixed period to send location data, a 600mAh battery can support sending 35000 times of data, one time of sending every 10s can be used for 97.2 hours, and one time of sending every 8 hours of working every day can be used for 12 days.
After the staff positioning chest card uses the method, the staff positioning chest card still has a 600mAh battery, 35000-time data transmission can be supported, the initial timing transmission period is also 10s, but the actual average use time reaches 320 hours, and 8 hours per day for working, one-time charging can be used for 40 days, so that the use efficiency of electric quantity is greatly improved. Nor is there any change in positioning accuracy.
Example 2:
this embodiment is basically the same as embodiment 1 except that the three-axis acceleration sensor is replaced with a gyroscope, and the calculation formula of the dynamic period is changed to T2 = (T1 a)n) + b. Where b is a self-setting constant.
Example 3:
this embodiment is basically the same as embodiment 1 except that the calculation formula of the dynamic period is changed to: t2 = (T1 a)n) + (b T1) + c, where c is also a self-setting constant.
The above three embodiments have substantially similar effects, and the variation of the dynamic period has slight difference, but the effect of realizing low power consumption is not affected.
The embodiment of the application can be stored in a readable storage medium when being implemented in a software form and sold or used as a stand-alone product. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. A low-power-consumption operation method of a positioning terminal is characterized by comprising the following steps:
s1: setting an initial period T1 for sending positioning data;
s2: the positioning terminal detects whether displacement occurs in the period time, if so, the next period is set as T1, and if not, the next period is prolonged to be a dynamic period T2; this step is repeated.
2. The method for operating a positioning terminal with low power consumption as claimed in claim 1, further comprising a verification step of: and if the displacement does not occur in two or more continuous periods, additionally sending operation confirmation information when the positioning data is sent next time.
3. The method for low-power operation of the positioning terminal according to claim 1 or 2, wherein the determination process of the dynamic period comprises: t2 = T1 an Wherein:
t1: a fixed initial period;
t2: calculating the obtained dynamic period;
a: representing a constant greater than one, and adjusting according to the requirements of different scenes;
n: the number of cycles in which no motion is detected continuously, and once motion occurs, the value becomes 0; the value would be +1 if no motion was detected within the period.
4. The method for operating the positioning terminal with low power consumption as claimed in claim 1 or 2, wherein the detecting whether the displacement occurs is performed by a three-axis acceleration sensor, the detected acceleration values in three axes are compared with a preset threshold, and if the detected acceleration values exceed the threshold, the displacement of the positioning terminal is determined.
5. The method for operating a positioning terminal with low power consumption as claimed in claim 1 or 2, further comprising the step of dynamic power adjustment: after every several times of period, the positioning terminal sends the positioning data for several times with descending power, the power received by the receiving terminal at the last time of lossless data is used as the bottom-protected power, 130% of the bottom-protected power is used as the sending power before the next dynamic power adjustment, and the sending power does not exceed the maximum power of the positioning terminal.
6. The method as claimed in claim 5, wherein in the step of dynamic power adjustment, the value of the period interval is adjusted according to the displacement of the positioning terminal, the initial value of the interval is X, the value of X is +1 every time there is no displacement in the period, and the value of X is-1 when there are two consecutive periods of displacement.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117572468A (en) * | 2024-01-17 | 2024-02-20 | 福建福大北斗通信科技有限公司 | Convergence method for discrete position information of low-power-consumption positioning equipment |
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| CN109600830A (en) * | 2019-01-31 | 2019-04-09 | 北京永安信通科技股份有限公司 | Mobile terminal, electronic equipment and its localization method |
| CN111182617A (en) * | 2019-12-30 | 2020-05-19 | 上海创功通讯技术有限公司 | Low-power-consumption control method, electronic equipment and storage medium |
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| CN117572468B (en) * | 2024-01-17 | 2024-04-16 | 福建福大北斗通信科技有限公司 | Convergence method for discrete position information of low-power-consumption positioning equipment |
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