CN111856539A - Tracking device based on multiple positioning - Google Patents
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- CN111856539A CN111856539A CN202010722261.XA CN202010722261A CN111856539A CN 111856539 A CN111856539 A CN 111856539A CN 202010722261 A CN202010722261 A CN 202010722261A CN 111856539 A CN111856539 A CN 111856539A
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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
- G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
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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
- G01S19/14—Receivers specially adapted for specific applications
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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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- 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 invention discloses a tracking device based on multiple positioning, which comprises a control module, a GPS positioning module, a WIFI positioning module, an NB-IOT base station positioning module, a sensor module and a battery, wherein the GPS positioning module, the WIFI positioning module, the NB-IOT base station positioning module, the sensor module and the battery are connected with the control module; the control module comprises a control chip, and the type of the control chip is HI 2115. The invention is based on multiple positioning technologies, and multiple positioning technologies complement each other in advantages, so that the aim of quick, accurate and efficient positioning can be achieved under various modes and scenes, and data interaction is performed based on an NB-IOT network and a background, therefore, the invention has the characteristics of low power consumption and high coverage, and can better meet the requirements.
Description
Technical Field
The invention relates to the technical field of positioning and tracking, in particular to a tracking device based on multiple positioning.
Background
In real life, the problems of missing of children and pets, loss of valuable goods, vehicle theft and the like are always pain points and difficulties to be solved urgently in daily life of common people. Various tracker devices are also available on the market at present, but due to the defects of large volume, high energy consumption, poor positioning accuracy, long time consumption and the like, the tracker device is very inconvenient in daily use.
Therefore, it is necessary to design an intelligent tracking device that is portable, low in cost, and fast and accurate in positioning.
Disclosure of Invention
The present invention is directed to overcoming the deficiencies of the prior art and providing a tracking device based on multiple positioning.
In order to achieve the purpose, the invention adopts the following technical scheme:
the tracking device based on multiple positioning comprises a control module, a GPS positioning module, a WIFI positioning module, an NB-IOT base station positioning module, a sensor module and a battery, wherein the GPS positioning module, the WIFI positioning module, the NB-IOT base station positioning module, the sensor module and the battery are connected with the control module; the control module comprises a control chip, and the type of the control chip is HI 2115.
The further technical scheme is as follows: the sensor module comprises a sensor chip, a resistor R401, a resistor R402, a resistor R403, a resistor R404, a resistor R405, a capacitor C406, a capacitor C407 and a capacitor C408; the 3 pins of the sensor chip are connected with the 1 pin of the capacitor C406, the 1 pin of the capacitor C407, the 1 pin of the capacitor C408 and the 1 pin of the resistor R405, the 2 pins of the capacitor C406, the 2 pins of the capacitor C407 and the 2 pins of the capacitor C408 are grounded, and the 2 pins of the resistor R405 are connected with the control chip; the pin 5 of the sensor chip is connected with the pin 1 of the resistor R401, and the pin 2 of the resistor R401 is connected with the control chip; the pin 6 of the sensor chip is connected with the pin 1 of the resistor R403, and the pin 2 of the resistor R403 and the pin 9 of the sensor chip are both grounded; the pin 2 of the sensor chip is connected with the pin 1 of the resistor R404, the pin 12 of the sensor chip is connected with the pin 1 of the resistor R402, and the pin 2 of the resistor R402 and the pin 2 of the resistor R404 are both connected with the control chip.
The further technical scheme is as follows: the model of the sensor chip is MC 3413.
The further technical scheme is as follows: the resistor R401 is connected with a control chip through a PIO port, and the control chip controls the on-off operation of the sensor module through the PIO port.
The further technical scheme is as follows: the resistor R402 and the resistor R404 are connected with a control chip through an I2C bus, and the control chip carries out data transceiving with the sensor module through an I2C bus.
The further technical scheme is as follows: the GPS positioning module comprises a GPS chip, a capacitor C561, a capacitor C562, an inductor L561, a resistor R504 and a resistor R505; a pin 40 of the GPS chip is connected with a pin 2 of an inductor L561, a pin 1 of the inductor L561 is connected with a pin 1 of a capacitor C561 and a pin 1 of a capacitor C562, a pin 2 of the capacitor C561 is grounded, and a pin 2 of the capacitor C562 is connected with an external low noise amplifier and a filter; the pin 18 of the GPS chip is connected with the pin 1 of the resistor R504, the pin 19 of the GPS chip is connected with the pin 1 of the resistor R505, and the pin 2 of the resistor R504 and the pin 2 of the resistor R505 are both connected with the control chip.
The further technical scheme is as follows: the GPS positioning module further comprises: a capacitor C550, a capacitor C551, a crystal X550, a capacitor C552, a capacitor C554, and an inductor L550; the pin 11 of the GPS chip is connected with the pin 1 of the crystal X551 and the pin 1 of the capacitor C550, the pin 12 of the GPS chip is connected with the pin 2 of the crystal X551 and the pin 1 of the capacitor C551, and the pin 2 of the capacitor C550 and the pin 2 of the capacitor C551 are grounded; the pin 3 of the GPS chip is connected with the pin 1 of the capacitor C554, the pin 2 of the capacitor C554 is connected with the pin 3 of the crystal oscillator X550, the pin 4 of the crystal oscillator X550 is connected with the pin 1 of the capacitor C552 and the pin 1 of the inductor L550, the pin 1 and the pin 2 of the crystal oscillator X550 and the pin 2 of the capacitor C552 are grounded, and the pin 2 of the inductor L550 is connected with the pin 2 of the GPS chip.
The further technical scheme is as follows: the model of the GPS chip is UC 6226.
The further technical scheme is as follows: the WIFI positioning module comprises a WIFI chip, a resistor R716, a resistor R717, a resistor R718, a resistor R719, a capacitor C711, a capacitor C712 and a crystal oscillator X710; a pin 34 of the WIFI chip is connected with a pin 1 of the resistor R716, a pin 33 of the WIFI chip is connected with a pin 1 of the resistor R717, a pin 32 of the WIFI chip is connected with a pin 1 of the resistor R718, a pin 31 of the WIFI chip is connected with a pin 1 of the resistor R719, a pin 2 of the resistor R716, a pin 2 of the resistor R717, a pin 2 of the resistor R718 and a pin 2 of the resistor R719 are connected with the control chip; a pin 27 of the WIFI chip is connected with a pin 1 of a capacitor C711 and a pin 1 of a crystal oscillator X710, and a pin 3 of the crystal oscillator X710 is connected with a pin 1 of a capacitor C712 and a pin 28 of the WIFI chip; the 2 pin of the capacitor C711, the 2 pin of the capacitor C712, and the 2 pin and 4 pin of the crystal oscillator X710 are all grounded.
The further technical scheme is as follows: the model of the WIFI chip is RDA 5981.
Compared with the prior art, the invention has the beneficial effects that: based on the multiple positioning technology, the advantages of the multiple positioning technologies are complementary, so that the device can achieve the purposes of quick, accurate and efficient positioning under various modes and scenes, and performs data interaction based on an NB-IOT network and a background, so that the device has the characteristics of low power consumption and high coverage, and can better meet the requirements.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a block diagram of a multi-positioning based tracking device according to the present invention;
FIG. 2 is a schematic diagram of a multi-positioning based tracking device according to the present invention;
FIG. 3 is a first circuit diagram of the multi-location based tracking apparatus of the present invention;
FIG. 4 is a second circuit diagram of the multi-positioning based tracking device of the present invention;
FIG. 5 is a third circuit diagram of the multi-location based tracking apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
As shown in fig. 1 to 5, in an embodiment, as shown in fig. 1, the present invention discloses a tracking device based on multiple positioning, which includes a control module 10, a GPS positioning module 20 connected to the control module 10, a WIFI positioning module 30, an NB-IOT base station positioning module 40, a sensor module 50, and a battery 60; the control module 10 comprises a control chip, and the model of the control chip is HI 2115.
In this embodiment, the control chip is an NB-IOT master control chip and is configured to control communication between the modules. The functions of the GPS positioning module 20 include GPS positioning and a-GPS assisted positioning, which are the most common and mature positioning technologies in daily life. The WIFI positioning module 30 is mainly used for scanning the surrounding hotspot information and uploading the information to the main control chip. NB-IOT base station location module 40 is actually a radio frequency and antenna path within a frequency range that provides a channel for NB network data transmission. The sensor module 50 is mainly an acceleration sensor, and can collect the speed information of the device and upload the speed information to the main control chip. The battery 60 is a rechargeable battery, and supplies power for normal operation of each module of the whole device.
Furthermore, the invention adopts multiple positioning technologies such as GPS positioning, A-GPS auxiliary positioning, WiFi positioning, NB-IOT base station positioning and the like to accurately position the position of the tracker.
1. GPS positioning
The principle of the GPS positioning technology is that a GPS space part uses 24 satellites to form a constellation, a tracker captures signals of satellites to be detected selected by a cut-off angle with a certain height, the operation of the satellites is tracked, the received GPS signals are converted, amplified and processed, the transmission time of the GPS signals from the satellites to a tracker antenna is measured, a navigation message sent by the GPS satellites is interpreted, and the three-dimensional position, the three-dimensional space and the time of the tracker are calculated.
2. A-GPS assisted positioning
The A-GPS positioning is an auxiliary function of the GPS positioning technology, reduces the starting and receiving times of a terminal side GPS, greatly shortens the first capturing time of the GPS, accelerates the positioning speed, and increases the positioning sensitivity and accuracy because the network side is adopted to obtain the base station information.
3. WiFi positioning
The principle of WiFi positioning is that surrounding hotspots are searched, the searched hotspot information is transmitted to a main control chip, and the main control chip can access a large database through an NB-IOT network to find the position information of the hotspots, so that the purpose of positioning is achieved.
4. NB-IOT base station positioning
The NB-IOT base station positioning is based on E-CID and OTDOA technologies of R14 standard, the position information of the terminal is obtained through NB network of mobile operator, the positioning precision can reach within 50 meters, and the requirement of current mainstream service can be basically met.
Specifically, as shown in fig. 2, the tracking device based on multiple positioning has a built-in rechargeable battery, and is charged by using USB 5V, so that the tracking device has the characteristics of convenience and rapidness, is exquisite and small, has a magic tape on the back surface, has a hanging rope on the side surface, can be carried about, can also be fixed or hung, and when the tracking device is used, each module immediately starts to work by only toggling a mechanical switch.
Specifically, as shown in fig. 3, the sensor module 50 includes a sensor chip, a resistor R401, a resistor R402, a resistor R403, a resistor R404, a resistor R405, a capacitor C406, a capacitor C407, and a capacitor C408; the 3 pins of the sensor chip are connected with the 1 pin of the capacitor C406, the 1 pin of the capacitor C407, the 1 pin of the capacitor C408 and the 1 pin of the resistor R405, the 2 pins of the capacitor C406, the 2 pins of the capacitor C407 and the 2 pins of the capacitor C408 are grounded, and the 2 pins of the resistor R405 are connected with the control chip; the pin 5 of the sensor chip is connected with the pin 1 of the resistor R401, and the pin 2 of the resistor R401 is connected with the control chip; the pin 6 of the sensor chip is connected with the pin 1 of the resistor R403, and the pin 2 of the resistor R403 and the pin 9 of the sensor chip are both grounded; the pin 2 of the sensor chip is connected with the pin 1 of the resistor R404, the pin 12 of the sensor chip is connected with the pin 1 of the resistor R402, and the pin 2 of the resistor R402 and the pin 2 of the resistor R404 are both connected with the control chip.
The type of the sensor chip is MC3413, the VDD end adopts 3V power supply with stable LDO output, and the capacitor C406, the capacitor C407 and the capacitor C408 are filter capacitors of a power supply circuit.
The resistor R401 is connected with a control chip through a PIO port, and the control chip controls the switching operation of the sensor module through the PIO port.
In this embodiment, the resistor R402 and the resistor R404 are connected to a control chip through an I2C bus, and the control chip performs data transmission and reception with the sensor module through an I2C bus.
The acceleration sensor works based on the working principle of acceleration, the acceleration is a space vector, and components of an object on three coordinate axes need to be measured to know whether the object moves or not; the GPS is matched with the GPS, so that whether the object is in a static state or a moving state can be judged, the main control chip sends an instruction to enable the device to enter a low power consumption mode when the object is static, data is sent once every 2 hours, and when the device is judged to be in the moving mode, the data is sent once every 10 seconds, and the sent data is the current position information of the device, so that the purposes of positioning and saving electricity are achieved.
In this embodiment, the priority of the multi-positioning is that GPS positioning + a-GPS assisted positioning is first adopted, the network server obtains information of a base station at a location of the device through the NB network, and sends GPS assistance information related to the location, including GPS ephemeris, azimuth and elevation angles, UTC time, and the like, and the GPS chip accurately captures specific satellite signals through the assistance information and sends the signals to the main control chip, thereby calculating the specific location of the device.
Specifically, as shown in fig. 3, the GPS positioning module 20 includes a GPS chip, a capacitor C561, a capacitor C562, an inductor L561, a resistor R504, and a resistor R505; a pin 40 of the GPS chip is connected with a pin 2 of an inductor L561, a pin 1 of the inductor L561 is connected with a pin 1 of a capacitor C561 and a pin 1 of a capacitor C562, a pin 2 of the capacitor C561 is grounded, and a pin 2 of the capacitor C562 is connected with an external low noise amplifier and a filter; the pin 18 of the GPS chip is connected with the pin 1 of the resistor R504, the pin 19 of the GPS chip is connected with the pin 1 of the resistor R505, and the pin 2 of the resistor R504 and the pin 2 of the resistor R505 are both connected with the control chip.
Wherein, the GPS positioning module 20 further comprises: a capacitor C550, a capacitor C551, a crystal X550, a capacitor C552, a capacitor C554, and an inductor L550; the pin 11 of the GPS chip is connected with the pin 1 of the crystal X551 and the pin 1 of the capacitor C550, the pin 12 of the GPS chip is connected with the pin 2 of the crystal X551 and the pin 1 of the capacitor C551, and the pin 2 of the capacitor C550 and the pin 2 of the capacitor C551 are grounded; the pin 3 of the GPS chip is connected with the pin 1 of the capacitor C554, the pin 2 of the capacitor C554 is connected with the pin 3 of the crystal oscillator X550, the pin 4 of the crystal oscillator X550 is connected with the pin 1 of the capacitor C552 and the pin 1 of the inductor L550, the pin 1 and the pin 2 of the crystal oscillator X550 and the pin 2 of the capacitor C552 are grounded, and the pin 2 of the inductor L550 is connected with the pin 2 of the GPS chip.
In this embodiment, the model of the GPS chip is UC 6226.
In the embodiment, the GPS chip is powered by two LDOs of 1.8V and 3V, the LDO in the GPS chip outputs power to a 26MHz crystal oscillator X550, and a clock generated by the crystal oscillator X550 provides reference frequency for radio frequency and baseband PLL. The GPS antenna end receives GPS signals, the GPS signals pass through an external low noise amplifier and a filter, then enter the inside of a GPS chip through a matching capacitor C561, a capacitor C562 and an inductor L561, and are amplified, converted into baseband signals again through single-end conversion, frequency mixing, filtering and digital-to-analog conversion in the GPS chip for processing, processed data pass through a resistor R504 and a resistor R505 and are connected with an NB-IOT main control chip through a serial port, and the information such as whether the current device is positioned, and the specific time, longitude and latitude, signal to noise ratio and the like of positioning are judged after analysis, so that the specific position of the device is calculated. In addition, the GPS chip is externally connected with a 32.768KHz crystal X551 and is used for providing a real-time clock, namely an RTC function for the GPS chip, when a main power supply and an IO power supply are powered off, as long as the GPS chip has backup power supply, at the moment, a base band, a radio frequency and a CPU do not work, the RTC still keeps running and provides a time keeping reference for a receiver, the mode is an RTC time keeping mode, the power consumption of a system can be effectively reduced in the mode, and system time, satellite ephemeris and almanac can be provided when the GPS chip is in hot start, so that the positioning time is greatly shortened.
Further, in the embodiment shown in fig. 4, the pins 7, 21, 22, and 23 of the GPS chip are connected to the power supply circuit, and the capacitors connected in parallel are used to filter noise waves, so that the power input waveform is smoother. Pins 1, 5, 24, 38 and 39 of the GPS chip are connected with magnetic beads and a decoupling capacitor and used for supplying power to an internal module of the GPS chip.
Specifically, as shown in fig. 5, the WIFI positioning module 30 includes a WIFI chip, a resistor R716, a resistor R717, a resistor R718, a resistor R719, a capacitor C711, a capacitor C712, and a crystal oscillator X710; a pin 34 of the WIFI chip is connected with a pin 1 of the resistor R716, a pin 33 of the WIFI chip is connected with a pin 1 of the resistor R717, a pin 32 of the WIFI chip is connected with a pin 1 of the resistor R718, a pin 31 of the WIFI chip is connected with a pin 1 of the resistor R719, a pin 2 of the resistor R716, a pin 2 of the resistor R717, a pin 2 of the resistor R718 and a pin 2 of the resistor R719 are connected with the control chip; a pin 27 of the WIFI chip is connected with a pin 1 of a capacitor C711 and a pin 1 of a crystal oscillator X710, and a pin 3 of the crystal oscillator X710 is connected with a pin 1 of a capacitor C712 and a pin 28 of the WIFI chip; the 2 pin of the capacitor C711, the 2 pin of the capacitor C712, and the 2 pin and 4 pin of the crystal oscillator X710 are all grounded.
The model of the WIFI chip is RDA 5981.
In the embodiment, when the GPS cannot perform positioning in an indoor or underground weak signal scene, the main control chip turns off the GPS positioning module 20, so that WIFI positioning is performed, the WIFI chip is powered by two LDOs of 3.3V and 3V, the WIFI chip is connected to a crystal oscillator X710 of 26MHz, and a clock generated by the crystal oscillator X710 provides reference frequency for radio frequency and baseband PLL; after the WIFI positioning module 30 is started, frequency signals of WIFI enter the WIFI chip through the antenna end, are processed through filtering, amplifying, mixing, digital-to-analog conversion and the like, and then are transmitted to the main control chip through the resistor R716, the resistor R717, the resistor R718 and the resistor R719 through the serial port, the main control chip analyzes the hotspot information, selects several groups of hotspot information with strongest signals, and accesses the hotspot database through the NB network to search the position information of the corresponding hotspot, so that the position of the positioning device is positioned.
If the WIFI positioning module 30 cannot search surrounding hotspots, the main control chip turns off the WIFI positioning module 30 and starts to search NB base station information, so as to position the device; after positioning is successful no matter what mode, the background server pushes the acquired device position to the user side through the mobile phone APP.
The main control chip used by the invention is communicated based on NB-IOT technology, key technologies such as PSM and e-DRX are adopted, the power consumption is greatly reduced, the service life of the tracker is prolonged, meanwhile, the NB-IOT indoor coverage capacity is strong, the coverage area capacity is improved by 100 times compared with LTE, the requirements of various use scenes such as remote rural areas, factories and underground garages can be met, the NB-IOT has the further advantage that the radio frequency and the antenna can be basically reused without re-networking, and therefore, the expense of operators and the equipment cost of the tracker are further reduced.
The present invention also integrates a variety of sensors including, but not limited to, acceleration sensors and temperature sensors. Different sensors can acquire different information and send the information to the background server through the NB-IOT network, and a user can check the information at any time through the mobile phone APP.
The invention is based on multiple positioning technologies, and multiple positioning technologies complement each other in advantages, so that the device can achieve the purpose of quick, accurate and efficient positioning under various modes and scenes, and performs data interaction based on an NB-IOT network and a background, has the characteristics of low power consumption and high coverage, and can better meet the requirements.
In this embodiment, components, types and connection relationships thereof that are not written out are already indicated in the specific circuit diagrams of fig. 3 to 5, and are not described herein again.
The technical contents of the present invention are further illustrated by the examples only for the convenience of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The tracking device based on multiple positioning is characterized by comprising a control module, a GPS positioning module, a WIFI positioning module, an NB-IOT base station positioning module, a sensor module and a battery, wherein the GPS positioning module, the WIFI positioning module, the NB-IOT base station positioning module, the sensor module and the battery are connected with the control module; the control module comprises a control chip, and the type of the control chip is HI 2115.
2. The multi-positioning-based tracking device of claim 1, wherein the sensor module comprises a sensor chip, a resistor R401, a resistor R402, a resistor R403, a resistor R404, a resistor R405, a capacitor C406, a capacitor C407, and a capacitor C408; the 3 pins of the sensor chip are connected with the 1 pin of the capacitor C406, the 1 pin of the capacitor C407, the 1 pin of the capacitor C408 and the 1 pin of the resistor R405, the 2 pins of the capacitor C406, the 2 pins of the capacitor C407 and the 2 pins of the capacitor C408 are grounded, and the 2 pins of the resistor R405 are connected with the control chip; the pin 5 of the sensor chip is connected with the pin 1 of the resistor R401, and the pin 2 of the resistor R401 is connected with the control chip; the pin 6 of the sensor chip is connected with the pin 1 of the resistor R403, and the pin 2 of the resistor R403 and the pin 9 of the sensor chip are both grounded; the pin 2 of the sensor chip is connected with the pin 1 of the resistor R404, the pin 12 of the sensor chip is connected with the pin 1 of the resistor R402, and the pin 2 of the resistor R402 and the pin 2 of the resistor R404 are both connected with the control chip.
3. The multi-positioning based tracking device of claim 2, wherein the sensor chip is of type MC 3413.
4. The multi-positioning-based tracking device of claim 2, wherein the resistor R401 is connected to a control chip through a PIO port, and the control chip controls the switching operation of the sensor module through the PIO port.
5. The multi-positioning based tracking device of claim 2, wherein the resistor R402 and the resistor R404 are connected to a control chip via an I2C bus, and the control chip performs data transmission and reception with the sensor module via an I2C bus.
6. The multi-positioning based tracking device of claim 2, wherein the GPS positioning module comprises a GPS chip, a capacitor C561, a capacitor C562, an inductor L561, a resistor R504, and a resistor R505; a pin 40 of the GPS chip is connected with a pin 2 of an inductor L561, a pin 1 of the inductor L561 is connected with a pin 1 of a capacitor C561 and a pin 1 of a capacitor C562, a pin 2 of the capacitor C561 is grounded, and a pin 2 of the capacitor C562 is connected with an external low noise amplifier and a filter; the pin 18 of the GPS chip is connected with the pin 1 of the resistor R504, the pin 19 of the GPS chip is connected with the pin 1 of the resistor R505, and the pin 2 of the resistor R504 and the pin 2 of the resistor R505 are both connected with the control chip.
7. The multi-position based tracking device of claim 6, wherein the GPS positioning module further comprises: a capacitor C550, a capacitor C551, a crystal X550, a capacitor C552, a capacitor C554, and an inductor L550; the pin 11 of the GPS chip is connected with the pin 1 of the crystal X551 and the pin 1 of the capacitor C550, the pin 12 of the GPS chip is connected with the pin 2 of the crystal X551 and the pin 1 of the capacitor C551, and the pin 2 of the capacitor C550 and the pin 2 of the capacitor C551 are grounded; the pin 3 of the GPS chip is connected with the pin 1 of the capacitor C554, the pin 2 of the capacitor C554 is connected with the pin 3 of the crystal oscillator X550, the pin 4 of the crystal oscillator X550 is connected with the pin 1 of the capacitor C552 and the pin 1 of the inductor L550, the pin 1 and the pin 2 of the crystal oscillator X550 and the pin 2 of the capacitor C552 are grounded, and the pin 2 of the inductor L550 is connected with the pin 2 of the GPS chip.
8. The multi-positioning based tracking device of claim 7, wherein the model of said GPS chip is UC 6226.
9. The multi-positioning-based tracking device of claim 7, wherein the WIFI positioning module comprises a WIFI chip, a resistor R716, a resistor R717, a resistor R718, a resistor R719, a capacitor C711, a capacitor C712, and a crystal oscillator X710; a pin 34 of the WIFI chip is connected with a pin 1 of the resistor R716, a pin 33 of the WIFI chip is connected with a pin 1 of the resistor R717, a pin 32 of the WIFI chip is connected with a pin 1 of the resistor R718, a pin 31 of the WIFI chip is connected with a pin 1 of the resistor R719, a pin 2 of the resistor R716, a pin 2 of the resistor R717, a pin 2 of the resistor R718 and a pin 2 of the resistor R719 are connected with the control chip; a pin 27 of the WIFI chip is connected with a pin 1 of a capacitor C711 and a pin 1 of a crystal oscillator X710, and a pin 3 of the crystal oscillator X710 is connected with a pin 1 of a capacitor C712 and a pin 28 of the WIFI chip; the 2 pin of the capacitor C711, the 2 pin of the capacitor C712, and the 2 pin and 4 pin of the crystal oscillator X710 are all grounded.
10. The multi-positioning-based tracking device of claim 9, wherein the WIFI chip is model RDA 5981.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113936443A (en) * | 2021-10-22 | 2022-01-14 | 中国地质大学（武汉） | Pet anti-lost device and method based on NB-IOT technology |
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