CN211293697U

CN211293697U - Positioning information acquisition system based on NB-IOT chip OpenCPU scheme

Info

Publication number: CN211293697U
Application number: CN202020044944.XU
Authority: CN
Inventors: 林定益; 聂世龙; 刘宝刚; 方叶波; 徐毅
Original assignee: Zhejiang Lianxin Internet Of Things Technology Co ltd
Current assignee: ZHEJIANG LIERDA INTERNET OF THINGS TECHNOLOGY Co.,Ltd.
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-08-18
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses a positioning information collection system based on NB-IOT chip OpenCPU scheme, including NB-IOT chip, GPS module, WIFI module, power module, the module of charging, voltage stabilizing circuit and battery switch, NB-IOT chip is connected with power module, GPS module and WIFI module respectively, and power module is connected with the output of the module of charging, and the input of the module of charging is connected with USB, and power module is connected with voltage stabilizing circuit's input, and voltage stabilizing circuit's output and GPS module are connected. The utility model discloses get rid of external MCU, with embedded software direct operation on NB-IOT chip, reduce the consumption, WIFI orientation module is added to reduce cost, compensaties single GPS orientation module's not enough, and cooperation NB-IOT's basic station location technique makes positioning information's collection more accurate, sets up battery switch and acquisition switch, makes things convenient for collection system's switching, makes the nimble application of multiple locate mode, complements each other, reduces the consumption.

Description

Positioning information acquisition system based on NB-IOT chip OpenCPU scheme

Technical Field

The utility model relates to a locator technical field especially relates to a location information acquisition system based on NB-IOT chip OpenCPU scheme.

Background

Asset localization is a very mature application of the internet of things and has a long history. The most painful point of wide area data services is power consumption and standby. 2G GSM/GPRS/CDMA has traditionally been used as the preferred technology because these technologies have a relative network coverage and transmit current that is less than that of 3G/4G technology. However, the transmission current is relatively large whether data service or short message service is used. CDMA consumes relatively little power, but still needs to be charged once every other time. Especially, the positioner with a small volume has the defects of short standby time, frequent charging and short battery life, which is a maximum pain point.

The advent of NB-IOT solved this challenge. Although NB-IOT only supports slow mobile devices, not voice. But can replace most GSM/CDMA positioning equipment such as personnel, bicycles and the like, and even make up for the defect that the NB-IOT loses data in high-speed movement by matching with an effective embedded software design scheme.

Since NB-IOT is a new technology, there are not many NB-IOT based location products on the market. Even if the MCU exists, the MCU is externally arranged to run a main program, and the NB-IOT module is controlled to receive and transmit data through the serial port, so that the positioning product which is favorable for NB-IOT communication is not a positioning product based on NB-IOT in a strict sense.

For example, a "NB-IOT network based ultra-long standby locator and NB-IOT network" disclosed in chinese patent literature has a publication number: CN209860907U, filing date thereof: in 2019, 31 th of 07 th of month, the mobile terminal comprises an NB-IOT communication module master control module, a positioning module, a watchdog module and a network registration module, wherein the positioning module, the watchdog module and the network registration module are respectively connected with the NB-IOT communication module master control module, the power supply module supplies power to the modules, the watchdog module is used for controlling the NB-IOT communication module master control module to be powered on or powered off, and the network registration module is used for registering an NB-IOT network. According to the application, the NB-IOT is used as a communication module to develop positioning products, the NB-IOT module is controlled to receive and transmit data through a serial port, the NB-IOT communication positioning products are still used, the NB-IOT communication positioning products are not 'NB-IOT-based positioning products', the external positioning module is used for increasing the product power consumption, and the cost is increased. .

Disclosure of Invention

The utility model mainly solves the problems of large power consumption, high cost and inaccurate positioning of the positioning system in the prior art; the positioning information acquisition system based on the NB-IOT chip OpenCPU scheme is provided, an external MCU is removed, power consumption of positioning acquisition products is reduced, cost is reduced, and accuracy of positioning information acquisition is improved.

The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a positioning information collection system based on NB-IOT chip OpenCPU scheme, includes NB-IOT chip, GPS module, WIFI module, power module, the module of charging, voltage stabilizing circuit and battery switch, NB-IOT chip is connected with power module, GPS module and WIFI module respectively, power module is connected with the output of the module of charging, the input of the module of charging is connected with USB, power module is connected with the input of voltage stabilizing circuit, the output and the GPS module of voltage stabilizing circuit are connected, power module is connected with battery switch's one end, battery switch's the other end and WIFI module are connected. The power supply module adopts a storage battery or a lithium battery to store electric energy, and simultaneously supplies power for the NB-IOT chip, the WIFI module and the GPS module, the NB-IOT chip is further connected with a base station, the current NB-IOT base station positioning technology is mature, an external MCU is removed, embedded software is directly operated inside the NB-IOT chip, the power consumption of the positioning acquisition system is effectively reduced, the cost is reduced, meanwhile, the WIFI module is added, a battery switch of the WIFI module is arranged, the WIFI module is convenient to open and close, the defect of GPS positioning is overcome, and meanwhile, the NB-IOT base station positioning technology is matched, so that the seamless positioning of the positioning acquisition system is realized.

Preferably, the GPS positioning system further comprises a low noise amplifier, a filter and a first antenna, wherein the input end of the first antenna receives positioning information, the output end of the first antenna is connected with the input end of the filter, the output end of the filter is connected with the input end of the low noise amplifier, and the output end of the low noise amplifier is connected with the GPS module. The positioning information of the navigation satellite is received through the input end of the first antenna, the acquisition of the positioning information is realized, the positioning information is processed by the GPS module after passing through the filter and the low noise amplifier, and the positioning information is sent to the NB-IOT chip, so that the GPS positioning is realized.

Preferably, the optical fiber sensor further comprises a gravity sensor, a temperature sensor, a photosensitive element, a light-emitting element, an ESIM card and an acquisition switch, and the gravity sensor, the temperature sensor, the photosensitive element, the light-emitting element, the ESIM card and the acquisition switch are all connected with the NB-IOT chip. The light-emitting element adopts two LEDs to be connected in parallel, embedded software is packaged through an ESIM card, developers can realize on-chip development, the safety of the installation position of the positioning system is guaranteed through the gravity sensor, the temperature sensor and the photosensitive element, the positioning system is prevented from being damaged, the positioning system can be closed through the acquisition switch when the positioning system does not need to acquire information, the acquisition power consumption is reduced, and the electricity consumption cost is reduced.

Preferably, the WIFI positioning system further comprises a second antenna, wherein the input end of the second antenna receives positioning information, and the output end of the second antenna is connected with the WIFI module. And receiving the positioning information of the NB-IOT base station through the input end of the second antenna, and realizing the positioning information acquisition of the WIFI module.

Preferably, the charging module includes a battery charging management chip U2, a potentiometer J1, a diode D1, a diode D2, a capacitor C2, a resistor R2, and a resistor R2, the GND terminal, the S2 terminal, and the S2 terminal of the potentiometer J2 are all grounded, the VBUS terminal of the potentiometer J2 is respectively grounded to the first terminal of the diode D2, the first terminal of the capacitor C2, and the pin of the battery charging management chip U2, the second terminal of the diode D2, the second terminal of the capacitor C2, and the second terminal of the capacitor C2 are all grounded, the ncpin of the battery charging management chip U2 is connected to the ground terminal of the battery charging management chip VIN 2 through a resistor NB-imnb-ground, the pin of the battery charging management chip U2 is connected to the GND terminal of the battery charging management chip imnb 2, an IREF pin of the battery charging management chip U2 is connected with one end of a resistor R8 through a resistor R6, the other end of the resistor R8 is grounded, a BAT pin of the battery charging management chip U2 is respectively connected with a first end of a capacitor C11, a first end of a capacitor C12 and a power supply module, and a second end of the capacitor C11 and a second end of the capacitor C12 are grounded. The input end of the charging module is connected with the USB, and charging signals are input through the USB.

Preferably, the photosensor includes a capacitor C111, a resistor R112, a resistor R113, a transistor Q1, and an overvoltage protection chip U15, where pin 1 of the overvoltage protection chip U15 is connected to a G-pole of the transistor Q1, a first end of the resistor R113, and a first end of the capacitor C111, a second end of the resistor R113, and an S-pole of the transistor Q1 are all connected to the NB-IOT chip, a D-pole of the transistor Q1 is connected to a first end of the resistor R112 through the resistor R111, and a second end of the resistor R112 and a pin 2 of the overvoltage protection chip U15 are all grounded.

Preferably, the acquisition switch comprises a capacitor C91, a resistor R46, a resistor R58 and a switch K1, a first end of the switch K1 is connected with one end of the resistor R46 and one end of the resistor R58, a second end of the switch K1 is grounded, the other end of the resistor R58 is connected with the NB-IOT chip, the other end of the resistor R46 is connected with a first end of the capacitor C91 and the NB-IOT chip, and a second end of the capacitor C91 is grounded. The switch K1 is a push-type switch that is opened by one push when the switch is in the closed state and closed by one push when the switch is in the open state.

Preferably, the wireless terminal further comprises a 50 ohm radio frequency line, one end of the 50 ohm radio frequency line is connected with the output end of the second antenna, and the other end of the 50 ohm radio frequency line is connected with the WIFI module. Through 50 ohm radio frequency lines, signal transmission between second antenna and the WIFI module is more stable, reduces electromagnetic interference, prevents that the wave form signal except that the location wave form from appearing in the signal, improves location collection system's the location degree of accuracy.

The utility model has the advantages that: (1) an external MCU is removed, and embedded software is directly operated on an NB-IOT chip, so that the power consumption is reduced, and the cost is reduced; (2) a WIFI positioning module is added to make up the defect of a single GPS positioning module, and the acquisition of positioning information is more accurate by matching with the NB-IOT base station positioning technology; (3) the battery switch and the acquisition switch are arranged, so that the acquisition system can be conveniently turned on and off, various positioning modes can be flexibly applied and supplemented, and the power consumption is reduced; (4) set up 50 ohm radio frequency lines, make the signal transmission between second antenna and the WIFI module more stable, reduce the interference of electromagnetism, prevent that the wave form signal except that the location wave form from appearing in the signal, improve location collection system's the location degree of accuracy.

Drawings

Fig. 1 is a schematic structural diagram of a positioning information acquisition system according to a first embodiment.

Fig. 2 is a schematic circuit diagram of the GPS module according to the first embodiment.

Fig. 3 is a schematic circuit diagram of a charging module according to the first embodiment.

Fig. 4 is a schematic circuit diagram of a photosensor according to the first embodiment.

Fig. 5 is a schematic circuit diagram of the WIFI module of the first embodiment.

Fig. 6 is a schematic circuit diagram of an acquisition switch according to the first embodiment.

FIG. 7 is a circuit diagram of an NB-IOT chip according to one embodiment.

In the figure, 1, an NB-IOT chip, 2, a GPS module, 3, a WIFI module, 4, a power supply module, 5, a charging module, 6, a USB, 7, a battery switch, 8, a low noise amplifier, 9, a filter, 10, a first antenna, 11, a second antenna, 12, an acquisition switch, 13, an ESIM card, 14, a gravity sensor, 15, a light-emitting element, 16, a temperature sensor, 17, a photosensitive element and 18, a voltage stabilizing circuit are arranged.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

The first embodiment is as follows: a positioning information acquisition system based on an NB-IOT chip 1OpenCPU scheme is shown in figure 1 and comprises an NB-IOT chip 1, a GPS module 2, a WIFI module 3, a power supply module 4, a charging module 5, a voltage stabilizing circuit 18, a battery switch 7, a noise amplifier, a filter 9, a first antenna 10, a gravity sensor 14, a temperature sensor 16, a photosensitive element 17, a light-emitting element 15, an ESIM card 13, an acquisition switch 12, a second antenna 11 and a 50 ohm radio frequency line, wherein the NB-IOT chip 1 is respectively connected with the power supply module 4, the GPS module 2 and the WIFI module 3, the power supply module 4 is connected with an output end of the charging module 5, an input end of the charging module 5 is connected with a USB6, the power supply module 4 is connected with an input end of the voltage stabilizing circuit 18, an output end of the voltage stabilizing circuit 18 is connected with the GPS module 2, the power supply module 4 is connected with one end of the battery switch 7, the input end of the first antenna 10 receives positioning information of a navigation satellite, the output end of the first antenna 10 is connected with the input end of the filter 9, the output end of the filter 9 is connected with the input end of the low-noise amplifier 8, the output end of the low-noise amplifier 8 is connected with the GPS module 2, the gravity sensor 14, the temperature sensor 16, the photosensitive element 17, the light-emitting element 15, the ESIM card 13 and the acquisition switch 12 are connected with the NB-IOT chip 1, the input end of the second antenna 11 receives positioning information of a base station of the NB-IOT, one end of a 50-ohm radio frequency line is connected with the output end of the second antenna 11, the other end of the 50-ohm radio frequency line is connected with the WIFI module 3, and the light-emitting element 15 comprises.

As shown in fig. 2, the GPS module 2 includes a GPS chip U8, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C5, a capacitor C6, a capacitor C27, a capacitor C28, a capacitor C29, a capacitor C30, a capacitor C32, a capacitor C33, a capacitor C34, a capacitor C36, a capacitor X2, a resistor R12, a resistor R15, a resistor R35, an inductor L1, an inductor B3, and a resonator X3, the GPS chip U8 is a TD1030-Q30 30030B type chip, the 0, 26, 27, 28, and 29 pins of the GPS chip U8 are all grounded, the 38 pin of the GPS chip U8 is connected to a first terminal of the capacitor C5 and a first terminal of the inductor B5, the second terminal of the capacitor C5 is grounded, the second terminal of the inductor B5 is connected to the ground via the first terminal pins of the capacitor C5, the txr 5, the second terminal of the capacitor C5, the second terminal of the txr 5, the capacitor B5 is connected to the ground of the pin 5, the pin 5 via the resistor R3619, a pin 18 of the GPS chip U8 is connected to a pin RXD of the NB-IOT chip 1U4A through a resistor R15, a pin 12 of the GPS chip U8 is connected to a first terminal of a capacitor X2 and a first terminal of a capacitor C6, respectively, a second terminal of the capacitor C6 is grounded, a second terminal of the capacitor X2 is connected to a pin 11 of the GPS chip U8 and a first terminal of a capacitor C27, respectively, a second terminal of the capacitor C27 is grounded, a pin 9 of the GPS chip U8 is grounded through a resistor R35, a pin 7 of the GPS chip U8 is connected to a voltage regulator 18 and a first terminal of a capacitor C33, respectively, a second terminal of the capacitor C33 is grounded, a pin 6 of the GPS chip U33 is connected to a pin 7 of the NB-IOT chip 1U4 33 and a first terminal of the capacitor C33, a second terminal of the capacitor C33 is grounded, a pin 5 of the GPS chip U33 is connected to a pin VCC of the capacitor C33, a pin of the GPS chip U33 is connected to a pin NC of the capacitor C33, a pin NC pin 33, and a pin NC pin C33 of the GPS chip X33 are connected to the rear terminal of the, the second terminal of the capacitor C34 is connected to ground.

As shown in fig. 3, the charging module 5 includes a battery charging management chip U2, a potentiometer J1, a diode D1, a diode D2, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a resistor R2, a resistor R4, a resistor R6 and a resistor R8, the GND terminal, the S1 terminal, the S2 terminal, the S3 terminal and the S4 terminal of the potentiometer J1 are all grounded, the VBUS terminal of the potentiometer J1 is respectively grounded to the first terminal of the diode D1, the first terminal of the diode D2, the first terminal of the capacitor C9, the first terminal of the capacitor C10 and the pin of the battery charging management chip U2, the second terminal of the diode D1, the second terminal of the diode D2, the second terminal of the capacitor C9 and the second terminal of the capacitor C10, the pin of the battery charging management chip U2 is connected to the NCHG-IOT chip U361 via a resistor R2, the pin 2 of the battery charging management chip U2 is connected to the ground, the resistor R2 of the battery charging management chip 2 and the pin 2 is connected to the battery charging management chip 2 via the resistor R2, the other end of the resistor R8 is grounded, the BAT pin of the battery charging management chip U2 is connected to the first end of the capacitor C11, the first end of the capacitor C12, and the power supply module 4, and the second end of the capacitor C11 and the second end of the capacitor C12 are grounded.

As shown in fig. 4, the photosensor 17 includes a capacitor C111, a resistor R112, a resistor R113, a transistor Q1, and an overvoltage protection chip U15, wherein pin 1 of the overvoltage protection chip U15 is connected to the G-pole of the transistor Q1, the first end of the resistor R113, and the first end of the capacitor C111, the second end of the resistor R113, and the S-pole of the transistor Q1 are all connected to the NB-IOT chip 1, the D-pole of the transistor Q1 is connected to the first end of the resistor R112 through the resistor R111, and the second end of the resistor R112 and pin 2 of the overvoltage protection chip U15 are all grounded.

As shown in fig. 5, the WIFI module 3 includes a WIFI chip U5, a resonator X1, a resistor R60, a resistor R61, a resistor R63, a capacitor C60, a capacitor C61, a capacitor C63, a capacitor C64, a capacitor C65, a capacitor C66, a capacitor C67, a capacitor C68, a capacitor C69, a capacitor C70, a capacitor C71, a capacitor C72, a capacitor C73, a capacitor C74, a capacitor C75, a capacitor C76, an inductor L60, and an inductor L60, where the WIFI chip U60 is of an XR809 model, a pin 39 of the WIFI chip U60 is connected to one end of the resistor R60 and a pin 25 of the NB-IOT chip 1U4 60 through the resistor R60, the other end of the resistor R60 is grounded, a pin 40 of the WIFI chip U60 is connected to a pin 26 of the NB-IOT chip U1U 4U 60 through the resistor R60, a pin of the WIFI chip U60 is connected to the capacitor X60, a pin 10 of the WIFI chip U60 is connected to the second end of the capacitor C60, and a pin of the capacitor C60, the WIFI chip X60, the second end of the WIFI chip, The 4 pins are all grounded, the 3 pin of the resonator X is respectively connected with the 3 pin of the WIFI chip U and the first end of the capacitor C, the second end of the capacitor C is grounded, the 21 pin of the WIFI chip U is respectively connected with the 22 pin of the WIFI chip U, the 1 pin of the WIFI chip U, the 17 pin of the WIFI chip U, the 50 pin of the WIFI chip U and the first end of the capacitor C through the inductor L, the second end of the capacitor C is grounded, the 2 pin of the WIFI chip U is grounded through the capacitor C, the 16 pin of the WIFI chip U is grounded through the capacitor C, the 18 pin of the WIFI chip U is grounded through the capacitor C, the 1 pin of the WIFI chip U is grounded through the capacitor C, the 50 pin of the WIFI chip U is grounded through the capacitor C, the 25 pin of the WIFI chip U is grounded through the capacitor C, the 34 pin of the WIFI chip U is grounded through the capacitor C, the 51 pin of the WIFI chip U is grounded through the capacitor C, the 19 pin of the WIFI chip U is grounded through the capacitor C, the 20 pin of the WIFI chip U, a pin 52 of the WIFI chip U5 is connected to the first end of the capacitor C74 and the first end of the inductor L62 through a 50 ohm rf line, the second end of the capacitor C74 is grounded, the second end of the inductor L62 is connected to the first end of the capacitor C75 and the first end of the inductor L61, the second end of the capacitor C75 is grounded, and the second end of the inductor L61 is connected to the second antenna 11.

As shown in fig. 6, the acquisition switch 12 includes a capacitor C91, a resistor R46, a resistor R58, and a switch K1, a first end of the switch K1 is connected to one end of the resistor R46 and one end of the resistor R58, a second end of the switch K1 is grounded, the other end of the resistor R58 is connected to the NB-IOT chip 1, the other end of the resistor R46 is connected to the first end of the capacitor C91 and the NB-IOT chip 1, and a second end of the capacitor C91 is grounded.

As shown in fig. 7, the NB-IOT chip 1 includes NB-IOT chip 1U4A, NB-IOT chip 1U4B, resistor R3, resistor R30, resistor R31, resistor R45, capacitor 20, capacitor C21, capacitor C19, capacitor C23, capacitor C25, capacitor C115, capacitor C116 and a third antenna, NB-IOT chip 1U4A and NB-IOT chip 1U4B are all chips of LSD4NBN-LB03000001 type, NB-IOT chip 1U4A has its 15, 16, 17, 18, 19, 20, 1, 2, 13, 38, 41, 44 and 45 pins all grounded, NB-IOT chip 1U4A has its 46 pin grounded through capacitor C116, NB-IOT chip 1U4A has its 43 pin connected to the first, second, 465, and third ends of capacitors A, 465 and 25C 465 of the first, NB-IOT chip 7 pins and the second ends of the capacitors C465 and 25, a pin 36 of the NB-IOT chip 1U4A is connected to the LED lamp, a pin 33 of the NB-IOT chip 1U4A is connected to the ESIM card 13, a pin 32 of the NB-IOT chip 1U4A is connected to the ESIM card 13 via a resistor R30, a pin 31 of the NB-IOT chip 1U4A is connected to the ESIM card 13 via a resistor R31, a pin 30 of the NB-IOT chip 1U4A is connected to the ESIM card 13 via a resistor R45, a pin 29 of the NB-IOT chip 1U4A is connected to the acquisition switch 12, a pin 28 of the NB-IOT chip 1U4A is connected to the information interface NB DBG d, a pin 27 of the NB-IOT chip 1U4A is connected to the charging module 5, a pin 26 of the NB-IOT chip U4A is connected to the WIFI module 3, a pin 25 of the NB-IOT chip 1U4A is connected to the information interface NB-b dcg 3, a pin 24 of the NB-IOT chip U4 is connected to the txnb chip 24, and a pin 3638 is connected to the first ohmic contact terminal of the NB-NB chip 3650, the second end of the capacitor C21 is grounded, the other end of the resistor R3 is connected with the first end of the capacitor C20 and the third antenna respectively, the second end of the capacitor C20 is grounded, 7 pins of the NB-IOT chip 1U4A are grounded through the capacitor C115, 64 pins of the NB-IOT chip 1U4B are connected with the

photosensitive element

17, 3 pins of the NB-IOT chip 1U4B are connected with the

gravity sensor

14, 4 pins and 5 pins of the NB-IOT chip 1U4B are connected with the temperature sensor 16 and the gravity sensor 14 respectively, 6 pins of the NB-IOT chip 1U4B are connected with the enabling end of the

WIFI module

3, 8 pins of the NB-IOT chip 1U4B are connected with the LED lamp, and 10 pins, 11 pins and 12 pins of the NB-IOT chip 1U4B are connected with the GPS module 2.

In the specific application, the OpenCPU scheme encapsulates NB-IOT source codes into library functions, releases the library functions to allow developers to realize on-chip development, correctly connects an acquisition system with a charging module 5 through a USB6, charges a battery of a power supply module 4, stores the electric energy, and supplies power to a GPS module 2, a WIFI module 3 and an NB-IOT chip 1, and the application is distinguished from other positioning information acquisition systems in that the WIFI module 3 is added, and the time of starting and stopping is strictly controlled when the WIFI module 3 performs positioning, so that a WIFI switch 7 is added, the electric connection between the WIFI module 3 and the power supply battery is controlled, the starting and stopping of the WIFI module 3 are controlled by controlling the switching of the battery switch 7, the positioning of the WIFI module 3 and the positioning of the GPS module 2 are supplemented, and the stability of data transmission between an antenna and the modules is enhanced by a 50-ohm radio frequency line, the positioning information acquisition system can still work normally in the severe network environment, and positioning information is more reliable.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims

1. A positioning information acquisition system based on an NB-IOT chip OpenCPU scheme is characterized by comprising

The battery charging system comprises an NB-IOT chip, a GPS module, a WIFI module, a power supply module, a charging module, a voltage stabilizing circuit and a battery switch, wherein the NB-IOT chip is respectively connected with the power supply module, the GPS module and the WIFI module, the power supply module is connected with the output end of the charging module, the input end of the charging module is connected with a USB, the power supply module is connected with the input end of the voltage stabilizing circuit, the output end of the voltage stabilizing circuit is connected with the GPS module, the power supply module is connected with one end of the battery switch, and the other end of the battery switch is connected with the WIFI module.

2. The positioning information acquisition system based on the NB-IOT chip OpenCPU scheme as claimed in claim 1, further comprising a low noise amplifier, a filter, and a first antenna, wherein an input end of the first antenna receives positioning information, an output end of the first antenna is connected to an input end of the filter, an output end of the filter is connected to an input end of the low noise amplifier, and an output end of the low noise amplifier is connected to a GPS module.

3. The positioning information acquisition system based on the NB-IOT chip OpenCPU scheme according to claim 1 or 2, further comprising a gravity sensor, a temperature sensor, a photosensitive element, a light-emitting element, an ESIM card, and an acquisition switch, wherein the gravity sensor, the temperature sensor, the photosensitive element, the light-emitting element, the ESIM card, and the acquisition switch are all connected to the NB-IOT chip.

4. The positioning information acquisition system based on the NB-IOT chip OpenCPU scheme as claimed in claim 1 or 2, further comprising a second antenna, wherein an input end of the second antenna receives the positioning information, and an output end of the second antenna is connected to the WIFI module.

5. The system according to claim 1, wherein the charging module comprises a battery charging management chip U2, a potentiometer J1, a diode D1, a diode D2, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a resistor R2, a resistor R4, a resistor R6 and a resistor R8, the GND terminal, the S1 terminal and the S1 terminal of the potentiometer J1 are all grounded, the VBUS terminal of the potentiometer J1 is respectively connected to the first terminal of the diode D1, the first terminal of the capacitor C1 and the VIN pin of the battery charging management chip U1, the second terminal of the diode D1, the second terminal of the capacitor C1 and the second terminal of the capacitor C1 are all grounded, the battery charging management chip U1 is connected to the NCNB-NI chip U1 via the resistor NB-NI chip, the GND pin of the battery charging management chip U2 is grounded, the IMIN pin of the battery charging management chip U2 is grounded through a resistor R4, the IREF pin of the battery charging management chip U2 is connected with one end of a resistor R8 through a resistor R6, the other end of the resistor R8 is grounded, the BAT pin of the battery charging management chip U2 is connected with the first end of a capacitor C11, the first end of a capacitor C12 and a power supply module respectively, and the second end of the capacitor C11 and the second end of the capacitor C12 are grounded.

6. The system of claim 3, wherein the photosensor comprises a capacitor C111, a resistor R112, a resistor R113, a transistor Q1, and an overvoltage protection chip U15, wherein pin 1 of the overvoltage protection chip U15 is connected to the G electrode of the transistor Q1, the first end of the resistor R113, and the first end of the capacitor C111, the second end of the resistor R113, and the S electrode of the transistor Q1 are connected to the NB-IOT chip, the D electrode of the transistor Q1 is connected to the first end of the resistor R112 through the resistor R111, and the second end of the resistor R112 and pin 2 of the overvoltage protection chip U15 are both grounded.

7. The system of claim 3, wherein the acquisition switch comprises a capacitor C91, a resistor R46, a resistor R58 and a switch K1, a first end of the switch K1 is connected to one end of a resistor R46 and one end of a resistor R58, respectively, a second end of the switch K1 is grounded, the other end of the resistor R58 is connected to the NB-IOT chip, the other end of the resistor R46 is connected to a first end of the capacitor C91 and the NB-IOT chip, respectively, and a second end of the capacitor C91 is grounded.

8. The positioning information acquisition system based on the NB-IOT chip OpenCPU scheme as claimed in claim 4, further comprising a 50 ohm RF line, wherein one end of said 50 ohm RF line is connected to the output end of the second antenna, and the other end of said 50 ohm RF line is connected to the WIFI module.