CN112637763A - Wireless tracker and tracking method - Google Patents
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- CN112637763A CN112637763A CN202011472563.2A CN202011472563A CN112637763A CN 112637763 A CN112637763 A CN 112637763A CN 202011472563 A CN202011472563 A CN 202011472563A CN 112637763 A CN112637763 A CN 112637763A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 81
- 230000002159 abnormal effect Effects 0.000 claims abstract description 58
- 230000007613 environmental effect Effects 0.000 claims abstract description 43
- 230000001960 triggered effect Effects 0.000 claims abstract description 8
- 238000005286 illumination Methods 0.000 claims description 31
- 238000010586 diagram Methods 0.000 description 8
- 230000003247 decreasing effect Effects 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000002618 waking effect Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/288—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account the usage mode, e.g. hands-free, data transmission, telephone
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application provides a wireless tracker, including orientation module and wireless communication module, its characterized in that still includes the environment sensor, the wireless tracker gets into dormant state after sending locating information, the wireless tracker keeps environment sensor response environmental parameter value environment sensor that the environment sensor sensed when environmental parameter value is in abnormal state, the wireless tracker is triggered and gets into operating condition, makes orientation module fixes a position and wireless communication module sends locating information. The application also provides a wireless tracking method. According to the wireless tracker and the wireless tracking method, when the wireless tracker is in a dormant state and an environmental parameter value sensed by the environmental sensor is determined to be in an abnormal state, positioning is carried out and positioning information is sent. Therefore, the times of positioning and wireless communication can be effectively reduced, the power consumption is reduced, and the abnormal condition of the wireless tracker can be reflected in time.
Description
Technical Field
The present application relates to the field of wireless communications, and in particular, to a wireless tracker and a tracking method.
Background
The wireless tracker mainly comprises a wireless communication module and a positioning module, and the wireless communication module and the positioning module are main power consumption sources. The main energy source of the wireless tracker is a battery, and the battery capacity is not large due to the limitation of the small size requirement of the wireless tracker. Therefore, in order to increase the service life of the wireless tracker, it is necessary to reduce the power consumption of the wireless tracker.
At present, in order to reduce the power consumption of a wireless tracker, a certain time interval is generally set, so that the wireless tracker sends position information at regular time, and the number of operations of the wireless tracker is reduced to reduce the power consumption. However, the time interval setting of the tracker may cause the abnormal condition to be missed if it is too long, and it is difficult to achieve the purpose of reducing power consumption if it is too short.
In addition, the conventional wireless tracker adopts a common GPS for positioning, needs to search GPS satellite information in a full frequency band, has long positioning time and high requirement on GPS signals, and not only has low positioning speed and high power consumption, but also has positioning accuracy influenced by the environment where the wireless tracker is located.
Disclosure of Invention
To solve the above technical problems, the present application provides a wireless tracker and a wireless tracking method.
In one aspect, the present application provides a wireless tracker that includes a wireless communication module, a positioning module, a controller, and an environmental sensor. After the wireless tracker sends positioning information, the wireless tracker enters a dormant state, wherein in the dormant state, the wireless tracker keeps the environment sensor working; the environment sensor is used for sensing an environment parameter value, and when the environment parameter value sensed by the environment sensor is in an abnormal state, the wireless tracker is triggered to enter a working state to start the positioning module and the wireless communication module, so that the positioning module performs positioning and the wireless communication module sends positioning information.
In another aspect, the present application provides a wireless tracking method applied in a wireless tracker, the method comprising: entering a sleep state after the wireless tracker transmits the positioning information, wherein in the sleep state, the wireless tracker keeps an environment sensor of the wireless tracker working; sensing an environmental parameter value by the environmental sensor; and when the environmental parameter value sensed by the environmental sensor is in an abnormal state, the wireless tracker is triggered to enter a working state, so that the wireless tracker performs positioning and sends positioning information.
According to the wireless tracker and the wireless tracking method, when the wireless tracker is in a dormant state, the environmental sensor senses the ambient environmental parameter value and determines that the environmental parameter value is in an abnormal state, positioning is carried out and positioning information is sent. Therefore, the times of positioning and wireless communication of the wireless tracker can be effectively reduced, the effect of reducing power consumption is achieved, and the abnormal condition of the wireless tracker can be reflected in time to play a role of early warning.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a block diagram of a wireless tracker according to an embodiment of the present application.
Fig. 2 is a block diagram of a wireless tracker shown in fig. 1.
Fig. 3 is a block diagram of another wireless tracker shown in fig. 1.
Fig. 4 is a block diagram of another wireless tracker shown in fig. 1.
Fig. 5 is a flowchart of a wireless tracking method according to an embodiment of the present application.
Fig. 6 is a sub-flowchart of step S102 in fig. 5.
Fig. 7 is still another sub-flowchart of step S102 in fig. 5.
Fig. 8 is still another sub-flowchart of step S102 in fig. 5.
Fig. 9 is a flowchart of a positioning method according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be understood that the terms "first" and "second" are only used for convenience in describing the present application and simplifying the description, and thus, should not be construed as limiting the present application.
Referring to fig. 1, fig. 1 is a block diagram of a wireless tracker 100 according to an embodiment of the present application. As shown in fig. 1, the wireless tracker 100 includes an environment sensor 10, a positioning module 20, and a wireless communication module 30.
After the wireless tracker 100 sends the positioning information, it enters a sleep state, in which the wireless tracker 100 keeps the environmental sensor 10 working; the environment sensor 10 is configured to sense an environment parameter value, wherein when the environment parameter value sensed by the environment sensor 10 is in an abnormal state, the wireless tracker 100 is triggered to enter a working state, so that the positioning module 20 performs positioning and the wireless communication module 30 sends positioning information.
Wherein the environment sensor 10 comprises at least one of a photosensitive element 11, a vibration sensor 12 and a temperature sensor 13; photosensitive element 11 is used for responding to the illumination intensity value of photosensitive element 11 place environment, vibrations inductor 12 is used for responding to the vibrations intensity value that wireless tracker 100 received, temperature-sensing ware 13 is used for responding to the temperature value of wireless tracker 100 place environment. And when the environment sensor senses that at least one of the illumination intensity value, the vibration intensity value and the temperature value is out of the range of the corresponding preset parameter value, determining that the environment parameter value is in an abnormal state.
The wireless tracker 100 further includes a controller 40, the controller 40 is electrically connected to the environment sensor 10, the positioning module 20, and the wireless communication module 30, and the controller 40 is configured to control and start the positioning module 20 and the wireless communication module 30, so that the positioning module 20 performs positioning and the wireless communication module 30 sends positioning information; recording the preset parameter value range corresponding to the environment parameter value; comparing the environmental parameter value sensed by the environmental sensor 10 with the preset parameter value range corresponding to the environmental parameter value, so as to determine whether the environmental parameter value sensed by the environmental sensor 10 is in an abnormal state, and when it is determined that the environmental parameter value sensed by the environmental sensor 10 is in the abnormal state, controlling to start the positioning module 20 for positioning and the wireless communication module 30 to send positioning information; and monitoring the power of the battery of the wireless tracker 100, and determining whether to control the positioning module 20 to perform positioning and the wireless communication module 30 to send positioning information according to the power condition.
The wireless tracker 100 further includes a first timer 50, wherein the first timer 50 is electrically connected to the controller 40, and is configured to periodically trigger the wireless tracker 100 to enter an operating state to periodically start the positioning module 20 and the wireless communication module 30, perform positioning by the positioning module 20 to obtain positioning information, and send the positioning information by the wireless communication module 30.
Specifically, the first timer 50 periodically sends a first trigger signal to the controller 40 at a first timing period to wake up the controller 40, and after the controller 40 is woken up, the controller controls to start the positioning module 20 and the wireless communication module 30 to enable the wireless tracker 100 to enter a working state, and controls to perform positioning through the positioning module 20 to obtain positioning information and send the positioning information through the wireless communication module 30.
The wireless tracker 100 further includes a second timer 60, wherein the second timer 60 is electrically connected to the controller 40, and is configured to periodically send a second trigger signal to the controller 40 at a second timing period, and wake up the controller 40, and after the controller 40 receives the second trigger signal of the second timer 60 and wakes up, the controller 40 obtains an environmental parameter value sensed by the environmental sensor 10, and when it is determined that the environmental parameter value is in an abnormal state, controls to start the positioning module 20 and the wireless communication module 30, so that the wireless tracker 100 enters an operating state.
Wherein the second timing period is not in conflict with the first timing period, the second timing period being shorter than the first timing period. For example, the first timing period is 24 hours, and the second timing period is 5 minutes, and of course, both the first timing period and the second timing period may be set according to actual requirements.
Specifically, the following three more specific examples are given for illustration.
The first embodiment is as follows:
referring to fig. 2, fig. 2 is a block diagram of a wireless tracker 100 shown in fig. 1, wherein the environment sensor 10 of the wireless tracker 100 includes the light-sensing element 11 and/or the vibration sensor 12. The second timer 60 periodically sends a second trigger signal to the controller 40 at a second timing period to wake up the controller 40, and after the controller 40 receives the second trigger signal of the second timer 60 and wakes up, the controller 40 obtains the light intensity value sensed by the light sensing element 11 and/or the vibration intensity value sensed by the vibration sensor 12, and when it is determined that the light intensity value sensed by the light sensing element 11 and/or the vibration intensity value sensed by the vibration sensor 12 are in an abnormal state, controls to start the positioning module 20 and the wireless communication module 30 so that the wireless tracker 100 enters a working state.
To prevent missing brief abnormal states of illumination intensity variation and/or vibration intensity variation of the wireless tracker 100, it is preferable, the second timing period is very short, even if the second timer 60 sends a second trigger signal to the controller 40 at the same time, wakes up the controller 40, so that the controller 40 can obtain the light intensity value sensed by the light sensing element 11 and/or the vibration intensity value sensed by the vibration sensor 12 in real time, and when the light intensity value sensed by the light sensing element 11 and/or the vibration intensity value sensed by the vibration sensor 12 are determined to be in an abnormal state according to the preset light intensity value range and/or the preset vibration intensity value range, the control activates the positioning module 20 and the wireless communication module 30 to make the wireless tracker 100 enter an operating state.
Preferably, the photosensitive element 11 and/or the vibration sensor 12 are provided with a storage unit and a processing unit, the storage unit is configured to record the preset illumination intensity value and/or the preset vibration intensity value range, and record the illumination intensity value and/or the vibration intensity value sensed by the photosensitive element 11 and/or the vibration sensor 12; the processing unit is used for judging whether the light sensing element 11 and/or the illumination intensity value and/or the vibration intensity value sensed by the vibration sensor 12 are/is in an abnormal state, and determining whether the light sensing element 11 and/or the illumination intensity value and/or the vibration intensity value sensed by the vibration sensor 12 are/is in an abnormal state, directly sending a second trigger signal to the controller 40 to wake up the controller 40, and after the controller 40 is woken up, controlling and starting the positioning module 20 and the wireless communication module 30 to enable the wireless tracker 100 to enter a working state, and controlling to pass through the positioning module 20 to position to obtain positioning information and to pass through the wireless communication module 30 to send the positioning information.
Therefore, the photosensitive element 11 and/or the vibration sensor 12 can determine whether the light intensity value and/or the vibration intensity value sensed by the photosensitive element 11 and/or the vibration sensor 12 is in an abnormal state, and when it is determined that the light intensity value and/or the vibration intensity value is in an abnormal state, the photosensitive element 11 and/or the vibration sensor 12 sends a second trigger signal to the controller 40 to wake up the controller 40, so that the photosensitive element 11 and/or the vibration sensor 12 can send a second trigger signal to the controller 40 in real time at the moment when the light intensity changes and/or the vibration intensity changes, and wake up the controller 40 to avoid missing an instantaneous abnormal condition.
The second embodiment is as follows:
referring to fig. 3, fig. 3 is a block diagram illustrating a structure of another wireless tracker 100 of fig. 1, wherein the environment sensor 10 of the wireless tracker 100 includes the temperature sensor 13. The second timer 60 periodically sends a second trigger signal to the controller 40 at the second timing period to wake up the controller 40, and after the controller 40 receives the second trigger signal of the second timer 60 and wakes up, the controller 40 obtains the temperature value sensed by the temperature sensor 13, and when it is determined that the temperature value sensed by the temperature sensor 13 is in an abnormal state, controls to start the positioning module 20 and the wireless communication module 30 to enable the wireless tracker 100 to enter an operating state.
Since the change of the temperature is usually increased or decreased within a certain time period, which has continuity, and the temperature after the change has continuity to a certain extent, it is preferable that the second timing period is set to a certain time period, for example, 5 minutes, the second timer 60 sends a second trigger signal to the controller 40 periodically with the second timing period of 5 minutes, wakes up the controller 40, and after the controller 40 receives the second trigger signal of the second timer 60 and wakes up, obtains the temperature value sensed by the temperature sensor 13, and when it is determined that the temperature value sensed by the temperature sensor 13 is in an abnormal state, controls to activate the positioning module 20 and the wireless communication module 30 so that the wireless tracker 100 enters an operating state.
The third concrete embodiment:
referring to fig. 4, fig. 4 is a block diagram illustrating a structure of another wireless tracker 100 shown in fig. 1, in which the environment sensor 10 of the wireless tracker 100 includes a photosensitive element 11 and/or a vibration sensor 12 and a temperature sensor 13. The second timer 60 periodically sends a second trigger signal to the controller 40 at a second timing period to wake up the controller 40, after the controller 40 receives the second trigger signal of the second timer 60 and wakes up, the controller 40 obtains the illumination intensity value sensed by the photosensitive element 11, the vibration intensity value sensed by the vibration sensor 12, and the temperature value sensed by the temperature sensor 13, and controls to start the positioning module 20 and the wireless communication module 30 to enable the wireless tracker 100 to enter the working state when determining that the illumination intensity value sensed by the photosensitive element 11, the vibration intensity value sensed by the vibration sensor 12, and/or the temperature value sensed by the temperature sensor 13 are in an abnormal state.
To prevent missing brief abnormal states of illumination intensity variation and/or vibration intensity variation of the wireless tracker 100, it is preferable, the second timing period of the light sensing element 11 and/or the vibration sensor 12 is very short, even if the second timer 60 sends a second trigger signal to the controller 40 at the moment, wakes up the controller 40, so that the controller 40 can obtain the light intensity value sensed by the light sensing element 11 and/or the vibration intensity value sensed by the vibration sensor 12 in real time, and when the light intensity value sensed by the light sensing element 11 and/or the vibration intensity value sensed by the vibration sensor 12 are determined to be in an abnormal state according to the preset light intensity value range and/or the preset vibration intensity value range, the control activates the positioning module 20 and the wireless communication module 30 to make the wireless tracker 100 enter an operating state.
Preferably, the photosensitive element 11 and/or the vibration sensor 12 are provided with a storage unit and a processing unit, the storage unit is configured to record the preset illumination intensity value and/or the preset vibration intensity value range, and record the illumination intensity value and/or the vibration intensity value sensed by the photosensitive element 11 and/or the vibration sensor 12; the processing unit is configured to determine whether the light intensity value and/or the vibration intensity value sensed by the light sensing element 11 and/or the vibration sensor 12 is outside the preset light intensity value and/or the preset vibration intensity value range, and when the light intensity value and/or the vibration intensity value sensed by the light sensing element 11 and/or the vibration sensor 12 is determined to be out of the preset light intensity value and/or the preset vibration intensity value range, sending a second trigger signal directly to the controller 40, waking up the controller 40, after the controller 40 wakes up, it controls to activate the positioning module 20 and the wireless communication module 30 to make the wireless tracker 100 enter an operating state, and controls the positioning module 20 to perform positioning to obtain positioning information and the wireless communication module 30 to transmit the positioning information.
The change of the temperature is usually increased or decreased within a certain time, with continuity, and the temperature after the change is persistent to some extent, it is preferable that the second timing period of the temperature sensor 13 is set to a period of time, for example, 5 minutes, the second timer 60 periodically sends a second trigger signal to the controller 40 with the second timing period of 5 minutes, wakes up the controller 40, after the controller 40 receives the second trigger signal of the second timer 60 and wakes up, to acquire the temperature value sensed by the temperature sensor 13, and when it is determined that the temperature value sensed by the temperature sensor 13 is in an abnormal state, the positioning module 20 and the wireless communication module 30 are controlled to be started, so that the wireless tracker 100 enters an operating state.
In this application, the photosensitive element 11 may be a photodiode, a photoresistor, an infrared sensor, an ultraviolet sensor, or the like; the vibration sensor 12 can be an acceleration sensor, or a displacement sensor, or a speed sensor, etc.; temperature-sensing ware 13 can be thermistor, perhaps thermocouple, perhaps thermal diode etc, temperature-sensing ware 13 only needs real-time induction temperature value, need not to record predetermine the temperature value scope or judge whether the temperature value that temperature-sensing ware 13 sensed is in abnormal conditions, for possessing real-time induction temperature value, records predetermine the temperature value scope to and can judge whether the temperature value that senses is in common temperature sensor of functions such as abnormal conditions, in this application temperature-sensing ware 13 can not only reduce the consumption, but also can reduce cost.
It can be understood that, the wireless tracker 100 keeps the environment sensor 10 working in the sleep state, and when it is determined that the environmental parameter value sensed by the environment sensor is in the abnormal state, the positioning module 20 is controlled to be started to perform positioning and the wireless communication module 30 sends positioning information, so that the times of positioning and wireless communication can be effectively reduced, the power consumption can be reduced, and the abnormal condition of the wireless tracker 100 can be reflected in time.
In addition, the positioning module 20 performs positioning according to the ephemeris downloaded by the wireless communication module 30, which can significantly shorten the positioning time of the positioning module 20, thereby reducing power consumption and improving positioning accuracy.
Specifically, the controller 40 controls to start the wireless communication module 30 and the positioning module 20, the wireless communication module 30 downloads an ephemeris from a server and sends the ephemeris to the positioning module 20 through the controller 40, the positioning module 20 searches for available GPS satellite information near the location of the wireless tracker 100 according to the received ephemeris, so as to obtain accurate positioning information of the location of the wireless tracker 100, and sends the positioning information to the controller 40, and the controller 40 sends the positioning information to the server through the communication module 30, where the ephemeris includes the satellite information near the location of the wireless tracker 100.
The ephemeris is used as an auxiliary positioning data, so that the positioning module 20 can quickly search GPS satellite information available near the position of the wireless tracker 100 during positioning, thereby shortening the GPS positioning time of the positioning module 20 to reduce power consumption and improve positioning accuracy.
In summary, in the present application, after the wireless communication module 30 sends the positioning information, the wireless communication module 30 and the positioning module 20 are turned off, the controller 40 enters a sleep state, and the environment sensor 10 keeps sensing the environmental parameter value; when the environmental parameter value sensed by the environmental sensor 10 is in an abnormal state, the controller 40 controls to start the positioning module 20 for positioning and the wireless communication module 30 to send positioning information. Therefore, the wireless tracker 100 not only can effectively reduce the number of positioning and wireless communication times to reduce power consumption, but also can send positioning information in time to avoid missing abnormal situations in abnormal situations. Moreover, the positioning module 20 performs positioning according to the ephemeris downloaded by the wireless communication module 30, which not only can shorten the positioning time to reduce power consumption, but also can improve the positioning accuracy.
Referring to fig. 5, fig. 5 is a flowchart illustrating a wireless tracking method according to an embodiment of the present disclosure. The wireless tracking method can be applied to, but is not limited to, the wireless tracker 100 of the foregoing embodiments. As shown in fig. 5, the wireless tracking method includes the following steps:
s101: entering a sleep state after the wireless tracker 100 transmits the positioning information, wherein in the sleep state, the wireless tracker 100 keeps the environment sensor 10 of the wireless tracker 100 working and senses the environment parameter value through the environment sensor 10;
s102: when the environmental parameter value sensed by the environmental sensor 10 is in an abnormal state, the wireless tracker is triggered 100 to enter an operating state, so that the wireless tracker 100 performs positioning and sends positioning information.
The environment parameter values include at least one of an illumination intensity value, a vibration intensity value and a temperature value, and when the environment sensor 10 senses that at least one of the illumination intensity value, the vibration intensity value and the temperature value is outside a corresponding preset parameter value range, it is determined that the environment parameter values are in an abnormal state.
In step S102 of the wireless tracking method, a second timer 60 of the wireless tracker 100 periodically sends a second trigger signal to the controller 40 of the wireless tracker 100 at a second timing period to periodically wake up the controller 40, after the controller 40 receives the second trigger signal of the second timer 60 and wakes up, the controller 40 obtains an environmental parameter value sensed by the environment sensor 10, and when it is determined that the environmental parameter value is in an abnormal state, the controller 40 controls to start the positioning module 20 and the wireless communication module 30 to enable the wireless tracker 100 to enter an operating state.
Specifically, the following three more specific examples are given for illustration.
The first embodiment is as follows:
referring to fig. 6, fig. 6 is a sub-flowchart of step S102 in fig. 5. The step S102 specifically includes the following steps:
s1021: sensing an illumination intensity value and/or a vibration intensity value through the photosensitive element 11 and/or the vibration sensor 12 of the wireless tracker 100, and sending a second trigger signal to the controller 40 through the photosensitive element 11 and/or the vibration sensor 12 to wake up the controller 40 when determining that the illumination intensity value and/or the vibration intensity value is outside a preset illumination intensity value and/or a preset vibration intensity value range;
s1022: the controller 40 controls to start the positioning module 20 and the wireless communication module 30, so that the positioning module 20 performs positioning to obtain positioning information and the wireless communication module 30 sends the positioning information.
In particular, in order to prevent missing a transient abnormal state of the change of illumination intensity and/or the change of vibration intensity of the wireless tracker 100, it is preferable that, the second timing period is very short, even if the second timer 60 sends a second trigger signal to the controller 40 at the same time, wakes up the controller 40, so that the controller 40 can obtain the light intensity value sensed by the light sensing element 11 and/or the vibration intensity value sensed by the vibration sensor 12 in real time, and when the light intensity value sensed by the light sensing element 11 and/or the vibration intensity value sensed by the vibration sensor 12 are determined to be in an abnormal state according to the preset light intensity value range and/or the preset vibration intensity value range, the control activates the positioning module 20 and the wireless communication module 30 to make the wireless tracker 100 enter an operating state.
Preferably, the photosensitive element 11 and/or the vibration sensor 12 are provided with a storage unit and a processing unit, the storage unit is configured to record the preset illumination intensity value and/or the preset vibration intensity value range, and record the illumination intensity value and/or the vibration intensity value sensed by the photosensitive element 11 and/or the vibration sensor 12; the processing unit is used for judging whether the light sensing element 11 and/or the illumination intensity value and/or the vibration intensity value sensed by the vibration sensor 12 are/is in an abnormal state, and determining whether the light sensing element 11 and/or the illumination intensity value and/or the vibration intensity value sensed by the vibration sensor 12 are/is in an abnormal state, directly sending a second trigger signal to the controller 40 to wake up the controller 40, and after the controller 40 is woken up, controlling and starting the positioning module 20 and the wireless communication module 30 to enable the wireless tracker 100 to enter a working state, and controlling to pass through the positioning module 20 to position to obtain positioning information and to pass through the wireless communication module 30 to send the positioning information.
Therefore, the light-sensing element 11 and/or the vibration sensor 12 can determine whether the light intensity value and/or the vibration intensity value sensed by the light-sensing element 11 and/or the vibration sensor 12 is in an abnormal state, and when it is determined that the light intensity value and/or the vibration intensity value sensed by the light sensing element 11 and/or the vibration sensor 12 is in an abnormal state, the light sensing element 11 and/or the vibration sensor 12 itself sends a second trigger signal to the controller 40, wakes up the controller 40, so that the light sensing element 11 and/or the vibration sensor 12 can send a trigger signal to the controller 40 in real time at the moment when the illumination intensity and/or the vibration intensity changes, so as to wake up the controller 40 and avoid missing a transient abnormal condition.
The second embodiment is as follows:
referring to fig. 7, fig. 7 is another sub-flowchart of step S102 in fig. 5. The step S102 specifically includes the following steps:
s1023: periodically sending a second trigger signal to the controller 40 at a second timing period through the second timer 60 to wake up the controller 40, wherein after the controller 40 receives the second trigger signal of the second timer 60 and wakes up, the controller 40 obtains a temperature value sensed by the temperature sensor 13 of the wireless tracker 100 and determines that the temperature value sensed by the temperature sensor 13 is in an abnormal state;
s1024: the controller 40 controls to start the positioning module 20 and the wireless communication module 30, so that the positioning module 20 performs positioning to obtain positioning information and the wireless communication module 30 sends the positioning information.
Specifically, since the change of the temperature is usually increased or decreased within a certain time period, which has continuity, and the temperature after the change has continuity to a certain extent, it is preferable that the second timing period is set to a certain time period, for example, 5 minutes, the second timer 60 sends a second trigger signal to the controller 40 periodically with the second timing period of 5 minutes, wakes up the controller 40, the controller 40 receives the second trigger signal of the second timer 60 and wakes up to obtain the temperature value sensed by the temperature sensor 13, and when it is determined that the temperature value sensed by the temperature sensor 13 is in an abnormal state, the controller controls to start the positioning module 20 and the wireless communication module 30 so that the wireless tracker 100 enters an operating state.
The third concrete embodiment:
referring to fig. 8, fig. 8 is a further sub-flowchart of S102 in fig. 5. The step S102 specifically includes the following steps:
s1025: sensing an illumination intensity value and/or a vibration intensity value through the photosensitive element 11 and/or the vibration sensor 12 of the wireless tracker 100, and sending a second trigger signal to the controller 40 through the photosensitive element 11 and/or the vibration sensor 12 to wake up the controller 40 when determining that the illumination intensity value and/or the vibration intensity value is outside a preset illumination intensity value and/or a preset vibration intensity value range; periodically sending a second trigger signal to the controller 40 at a second timing period through the second timer 60 to wake up the controller 40, wherein after the controller 40 receives the second trigger signal of the second timer 60 and wakes up, the controller 40 obtains a temperature value sensed by the temperature sensor 13 of the wireless tracker 100 and determines that the temperature value sensed by the temperature sensor 13 is in an abnormal state;
s1026: the controller 40 controls to start the positioning module 20 and the wireless communication module 30, the positioning module 20 performs positioning to obtain positioning information, and the wireless communication module 30 sends the positioning information.
In particular, in order to prevent missing a transient abnormal state of the change of illumination intensity and/or the change of vibration intensity of the wireless tracker 100, it is preferable that, the second timing period of the light sensing element 11 and/or the vibration sensor 12 is very short, even if the second timer 60 sends a second trigger signal to the controller 40 at the moment, wakes up the controller 40, so that the controller 40 can obtain the light intensity value sensed by the light sensing element 11 and/or the vibration intensity value sensed by the vibration sensor 12 in real time, and when the light intensity value sensed by the light sensing element 11 and/or the vibration intensity value sensed by the vibration sensor 12 are determined to be in an abnormal state according to the preset light intensity value range and/or the preset vibration intensity value range, the control activates the positioning module 20 and the wireless communication module 30 to make the wireless tracker 100 enter an operating state.
Preferably, the photosensitive element 11 and/or the vibration sensor 12 are provided with a storage unit and a processing unit, the storage unit is configured to record the preset illumination intensity value and/or the preset vibration intensity value range, and record the illumination intensity value and/or the vibration intensity value sensed by the photosensitive element 11 and/or the vibration sensor 12; the processing unit is configured to determine whether the light intensity value and/or the vibration intensity value sensed by the light sensing element 11 and/or the vibration sensor 12 is outside the preset light intensity value and/or the preset vibration intensity value range, and when the light intensity value and/or the vibration intensity value sensed by the light sensing element 11 and/or the vibration sensor 12 is determined to be out of the preset light intensity value and/or the preset vibration intensity value range, sending a second trigger signal directly to the controller 40, waking up the controller 40, after the controller 40 wakes up, it controls to activate the positioning module 20 and the wireless communication module 30 to make the wireless tracker 100 enter an operating state, and controls the positioning module 20 to perform positioning to obtain positioning information and the wireless communication module 30 to transmit the positioning information.
The change of the temperature is usually increased or decreased within a certain time, with continuity, and the temperature after the change is persistent to some extent, it is preferable that the second timing period of the temperature sensor 13 is set to a period of time, for example, 5 minutes, the second timer 60 periodically sends a second trigger signal to the controller 40 with the second timing period of 5 minutes, wakes up the controller 40, after the controller 40 receives the second trigger signal of the second timer 60 and wakes up, to acquire the temperature value sensed by the temperature sensor 13, and when it is determined that the temperature value sensed by the temperature sensor 13 is in an abnormal state, the positioning module 20 and the wireless communication module 30 are controlled to be started, so that the wireless tracker 100 enters an operating state.
The wireless tracking method provided by the embodiment further includes: the wireless tracker 100 periodically enters an operating state to periodically start the positioning module 20 and the wireless communication module 30; and obtaining positioning information by positioning through the positioning module 20, and sending the positioning information through the wireless communication module 30.
Specifically, the first timer 50 of the wireless tracker 100 periodically sends a first trigger signal to the controller 40 of the wireless tracker 100 at a first timing period to periodically wake up the controller 40, and after the controller 40 wakes up, the controller 40 controls to start the positioning module 20 and the wireless communication module 30 so that the wireless tracker 100 enters a working state, and controls to perform positioning through the positioning module 20 to obtain positioning information and send the positioning information through the wireless communication module 30.
Referring to fig. 9, fig. 9 is a flowchart illustrating a positioning method according to the present embodiment, which can be applied to, but not limited to, the wireless tracker 100 according to the previous embodiments. As shown in fig. 9, the positioning method includes the following steps:
s201: the controller 40 controls to start the positioning module 20 and the wireless communication module 30;
s202: the wireless communication module 30 downloads the ephemeris and transmits the ephemeris to the positioning module 20 through the controller 40;
s203: the positioning module 20 performs GPS positioning according to the ephemeris to obtain positioning information.
Specifically, the wireless communication module 30 downloads ephemeris from a server and sends the ephemeris to the positioning module 20 through the controller 40, and the positioning module 20 searches for available GPS satellites near the location of the wireless tracker 100 according to the received ephemeris, so as to obtain precise positioning information of the location of the wireless tracker 100, and sends the positioning information to the controller 40, where the ephemeris includes information of satellites near the location of the wireless tracker 100.
The ephemeris is used as an assisted positioning data, so that the positioning module 20 can quickly search for available GPS information near the position of the wireless tracker 100, thereby shortening GPS positioning time to reduce power consumption and improve positioning accuracy.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (14)
1. A wireless tracker comprises a positioning module and a wireless communication module, and is characterized by further comprising an environment sensor, wherein the wireless tracker enters a dormant state after sending positioning information, and the wireless tracker keeps the environment sensor working in the dormant state; the environment sensor is used for sensing an environment parameter value, wherein when the environment parameter value sensed by the environment sensor is in an abnormal state, the wireless tracker is triggered to enter a working state to start the positioning module and the wireless communication module, so that the positioning module performs positioning and the wireless communication module sends positioning information.
2. The wireless tracker according to claim 1, wherein said environment sensor comprises at least one of a light-sensitive element for sensing a light intensity value, a vibration sensor for sensing a vibration intensity value, and a temperature sensor for sensing a temperature value.
3. The wireless tracker according to claim 2, wherein said environmental parameter value is determined to be in an abnormal state when said environment sensor senses that at least one of said illumination intensity value, vibration intensity value and temperature value is outside a corresponding preset parameter value range.
4. The wireless tracker according to claim 3, further comprising a first timer for periodically triggering the wireless tracker to enter an operating state to periodically start the positioning module and the wireless communication module, and to obtain positioning information by performing positioning through the positioning module and to send the positioning information through the wireless communication module.
5. The wireless tracker according to claim 4, wherein the wireless tracker further comprises a controller, the first timer periodically sends a first trigger signal to the controller at a first timing period to wake up the controller, and after the controller wakes up, the controller controls to start the positioning module and the wireless communication module to enable the wireless tracker to enter an operating state, and controls to perform positioning by the positioning module to obtain positioning information and send the positioning information by the wireless communication module.
6. The wireless tracker according to claim 5, further comprising a second timer, wherein the second timer periodically sends a second trigger signal to the controller at a second timing period to wake up the controller, and after the controller receives the second trigger signal of the second timer and wakes up, the controller obtains an environmental parameter value sensed by the environmental sensor, and controls to start the positioning module and the wireless communication module to enable the wireless tracker to enter an operating state when it is determined that the environmental parameter value is in an abnormal state.
7. The wireless tracker according to claim 6, wherein said positioning module performs positioning according to ephemeris downloaded by said wireless communication module.
8. A wireless tracking method applied to a wireless tracker, the method comprising:
entering a sleep state after the wireless tracker transmits the positioning information, wherein in the sleep state, the wireless tracker keeps an environment sensor of the wireless tracker working; sensing an environmental parameter value by the environmental sensor; and
when the environment parameter value sensed by the environment sensor is in an abnormal state, the wireless tracker is triggered to enter a working state, so that the wireless tracker performs positioning and sends positioning information.
9. The wireless tracking method of claim 8, wherein the environmental parameter values include at least one of a light intensity value, a vibration intensity value, and a temperature value.
10. The wireless tracking method of claim 9, wherein the sensing by the environment sensor that the value of the environment parameter is in an abnormal state comprises:
and when the environment sensor senses that at least one of the illumination intensity value, the vibration intensity value and the temperature value is out of the range of the corresponding preset parameter value, determining that the environment parameter value is in an abnormal state.
11. The wireless tracking method of claim 10, further comprising:
the wireless tracker periodically enters a working state to periodically start the positioning module and the wireless communication module; and
and positioning through the positioning module to obtain positioning information, and sending the positioning information through the wireless communication module.
12. The wireless tracking method of claim 11, wherein the wireless tracker periodically enters an active state to periodically activate the positioning module and the wireless communication module, comprising:
periodically sending a first trigger signal to a controller of the wireless tracker at a first timing period through a first timer of the wireless tracker to periodically wake up the controller;
after the controller is awakened, the positioning module and the wireless communication module are controlled to be started, so that the wireless tracker enters a working state.
13. The wireless tracking method according to claim 12, wherein when the environmental parameter value sensed by the environmental sensor is in an abnormal state, the wireless tracker is triggered to enter an operating state, so that the wireless tracker performs positioning and sends positioning information, and the method comprises:
periodically sending a second trigger signal to a controller of the wireless tracker at a second timing period through a second timer of the wireless tracker to periodically wake up the controller, and after the controller receives the second trigger signal of the second timer and wakes up, acquiring an environmental parameter value sensed by the environmental sensor and determining that the environmental parameter value is in an abnormal state;
the controller controls to start the positioning module and the wireless communication module so that the wireless tracker enters an operating state.
14. The wireless tracking method of claim 13, wherein the positioning module performs positioning, comprising: and the positioning module is used for positioning according to the ephemeris downloaded by the wireless communication module.
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Cited By (1)
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