CN211905704U

CN211905704U - Low-power consumption locator based on NB-IOT chip OpenCPU scheme

Info

Publication number: CN211905704U
Application number: CN202020038770.6U
Authority: CN
Inventors: 刘宝刚; 聂世龙; 林定益; 刘高云; 毛樟梅
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: 2020-11-10
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses a low-power consumption locator based on NB-IOT chip OpenCPU scheme, including the casing, install NB-IOT chip in the casing, the power module who is connected with NB-IOT chip GPS module and WIFI module and supplies power for NB-IOT chip, GPS module and WIFI module, be equipped with battery jar and mounting groove in the casing, power module fixed mounting is in the battery jar, and the equal fixed mounting of NB-IOT chip, GPS module and WIFI module is in the mounting groove. The utility model discloses a get rid of external MCU, with the direct operation of embedded software on NB-IOT chip, reduce cost adds WIFI orientation module, compensaties single GPS orientation module's not enough, 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

Low-power consumption locator based on NB-IOT chip OpenCPU scheme

Technical Field

The utility model relates to a locator technical field especially relates to a low-power consumption locator 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 positioner in the prior art; the low-power consumption positioner based on the NB-IOT chip OpenCPU scheme is provided, an external MCU is removed, the power consumption of positioning acquisition products is reduced, the cost is reduced, and the 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 low-power consumption locator based on NB-IOT chip OpenCPU scheme, includes the casing, installs NB-IOT chip in the casing, the GPS module and the WIFI module of being connected with NB-IOT chip and the power module who supplies power for NB-IOT chip, GPS module and WIFI module, be equipped with battery jar and mounting groove in the casing, power module fixed mounting is in the battery jar, NB-IOT chip, GPS module and the equal fixed mounting of WIFI module are in the mounting groove, one side of casing is equipped with the mouth that charges, the mouth that charges is connected with power module, the opposite side of casing is equipped with IC card socket, IC card socket is connected with NB-IOT chip. 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 between the power supply module and the WIFI module, the WIFI module is convenient to open and close, the defect of GPS positioning is overcome, meanwhile, the NB-IOT base station positioning technology is matched, and the seamless positioning of the positioning acquisition system is realized.

Preferably, the charger further comprises a charger, the charger comprises 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 VIN 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 ncnb pin of the battery charging management chip U2 is connected with the ground pin of the imnb-i NB-i-NB resistor R2, the resistor R2 is connected with the GND pin of the battery charging management chip 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 charger is connected with the USB, and the charging signal is input through the USB, so that the battery of the power supply module is charged more conveniently and rapidly.

Preferably, the GPS positioning device further comprises a low noise amplifier, a filter and a first antenna, wherein the input end of the first antenna inputs 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, the output end of the low noise amplifier is connected with the GPS module, the low noise amplifier and the filter are both installed in the installation groove, and the first antenna is installed on one side of the shell. The first antenna is used for collecting positioning information, 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 to realize GPS positioning.

Preferably, the intelligent electronic device further comprises 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 and the acquisition switch are all connected with the NB-IOT chip, the gravity sensor, the temperature sensor, the photosensitive element, the light-emitting element and the acquisition switch are all installed in the installation groove, and the ESIM card is in matched connection with the IC card socket. The light-emitting component adopts two LED lamps to connect in parallel, encapsulates embedded software through the ESIM card, supplies the developer to realize on-chip development, through gravity sensor, temperature sensor and light sensitive element, guarantees the safety of positioning system mounted position, prevents that positioning system from being destroyed, through gathering the switch, when positioning system need not gather information, can close positioning acquisition system, reduces the consumption of gathering, reduces the power consumption cost.

Preferably, the WIFI positioning device further comprises a second antenna, positioning information is input into the input end of the second antenna, the output end of the second antenna is connected with the WIFI module, and the second antenna is installed on one side of the shell. Through the second antenna, realize the locating information collection of WIFI module, be connected through 50 ohm radio frequency lines between second antenna and WIFI module, 50 ohm radio frequency lines have the stable effect of signal transmission, make locating information's collection more accurate, prevent signal distortion.

Preferably, the mobile terminal further comprises a timer, the timer is connected with the NB-IOT chip, and the timer is installed in the installation groove. The starting time of the WIFI module is timed through the timer, and the WIFI module is conveniently controlled to be started or closed.

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 GPS enabling module further comprises a GPS enabling module, the GPS enabling module comprises an enabling chip U3, a capacitor C14, a capacitor C15, an enabling signal and a resistor R13, the IN pin of the enabling chip U3 is connected with the power supply module and the first end of the capacitor C14 respectively, the second end of the capacitor C14 is grounded, the EN pin of the enabling chip U3 is connected with one end of the resistor R13 and the enabling signal respectively, the other end of the resistor R13 is grounded, the GND pin of the enabling chip U3 is grounded, the OUT pin of the enabling chip U3 is connected with the GPS module and the first end of the capacitor C15 respectively, and the second end of the capacitor C15 is grounded.

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 housing according to the first embodiment

Fig. 2 is a circuit connection block diagram of the positioner according to the first embodiment.

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

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

Fig. 5 is a schematic circuit diagram of a photosensor according to the first embodiment.

Fig. 6 is a schematic circuit diagram of the WIFI module of the first embodiment.

Fig. 7 is a schematic circuit diagram of an acquisition switch according to the first embodiment.

FIG. 8 is a circuit diagram of an NB-IOT chip according to one embodiment.

Fig. 9 is a circuit schematic diagram of a GPS-enabled module of the first 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, 18, a voltage stabilizing circuit, 101, a shell, 102, an installation groove, 103, a battery groove, 105, an integrated circuit board, 106, a charging port, 107 and an IC card port are included.

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 low-power consumption locator based on an NB-IOT chip 1OpenCPU scheme, as shown in fig. 1, a housing 101, an NB-IOT chip 1 installed in the housing 101, a GPS module 2 and a WIFI module 3 connected to the NB-IOT chip 1, a power supply module 4 and a charger 5 for supplying power to the NB-IOT chip 1, the GPS module 2 and the WIFI module 3, a battery jar 103 and an installation groove 102 are provided in the housing 101, the battery jar 103 and the installation groove 102 are isolated by a baffle, a charging port 106 is provided on one side of the housing 101, the charging port 106 is connected to the power supply module, an IC card socket 107 is provided on the other side of the housing 101, the IC card socket 107 is connected to the NB-IOT chip, the NB-IOT chip 1, the GPS module 2 and the WIFI module 3 are concentrated on an integrated circuit board 105, the integrated circuit board 105 is fixedly installed in the installation groove 102, and the power supply module is fixedly installed in the battery jar 103.

As shown in fig. 2, the integrated circuit board 105 further includes a power supply module 4, a voltage regulator 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, a GPS enabling module, a timer, and a 50-ohm rf cable, the NB-IOT chip 1 is connected to the power supply module 4, the GPS module 2, and the WIFI module 3, respectively, the power supply module 4 is connected to an output terminal of the charger 5, an input terminal of the charger 5 is connected to a USB6, the power supply module 4 is connected to an input terminal of the voltage regulator circuit 18, an output terminal of the voltage regulator circuit 18 is connected to the GPS module 2, the power supply module 4 is connected to one end of the battery switch 7, the other end of the battery switch 7 is connected to the WIFI module 3, an input terminal of the first antenna 10 inputs, 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 low-noise amplifier 8 and the filter 9 are both installed in the installation groove 102, the first antenna 10 is installed on one side of the shell 101, 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 all connected with the NB-IOT chip 1, the gravity sensor, the temperature sensor, the photosensitive element, the light-emitting element and the acquisition switch are all installed in the installation groove 102, the ESIM card is connected with the IC card socket 107 in a matching manner, the input end of the second antenna 11 inputs positioning information, 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, the second, the timer is connected with the NB-IOT chip and used for timing the time for starting positioning information acquisition of the GPS module and the WIFI module, the signal input end of the GPS enabling module is connected with the NB-IOT chip, and the output end of the GPS enabling module is connected with the GPS module.

As shown in fig. 3, 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. 4, the charger 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 VIN 2 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 ncnb-IOT 1 through a resistor R2, the resistor R2 of the battery charging management chip U2 is connected to the ground of the battery charging management chip U2, the battery charging management chip 2 is connected to the GND terminal of the battery charging management chip 2, 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. 5, 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. 6, 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. 7, 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. 8, 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 charger 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 1U4 is connected to the information interface NB 893, a pin 24 of the NB-IOT chip 1U4 is connected to the txnb-NB chip 9638, and a pin 3621-7 of the first ohmic resistor NB-NB chip, a resistor R21 and a resistor R21, 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.

As shown IN fig. 9, the GPS enabling module includes an enabling chip U3, a capacitor C14, a capacitor C15, an enabling signal and a resistor R13, the IN pin of the enabling chip U3 is connected to the first terminals of the power supply module and the capacitor C14, the second terminal of the capacitor C14 is grounded, the EN pin of the enabling chip U3 is connected to one terminal of the resistor R13 and the enabling signal, the other terminal of the resistor R13 is grounded, the GND pin of the enabling chip U3 is grounded, the OUT pin of the enabling chip U3 is connected to the first terminals of the GPS module and the capacitor C15, and the second terminal of the capacitor C15 is grounded.

In the specific application, the OpenCPU scheme encapsulates the source codes of NB-IOT into library functions, releases the library functions for developers to realize on-chip development, most of application programs of the current locator on the market run in MCU, the power consumption of the locator is large, the service time of the equipment is greatly reduced, the MCU is removed, the power consumption of the MCU is saved, the stability of data interaction is improved, the power consumption of the whole equipment is reduced, the acquisition system is correctly connected with a circuit and is connected with a charger 5 through USB6 to charge a battery of a power supply module 4, the battery stores electric energy and supplies power to a GPS module 2, a WIFI module 3 and an NB-IOT chip 1, the application is distinguished from other positioning information acquisition systems in that the WIFI module 3 is added, and the starting and stopping time of the WIFI module 3 is strictly controlled when positioning is carried out, consequently, add battery switch 7, control the electricity between WIFI module 3 and the power supply battery, through the switching of control battery switch 7, control the start-up and the stop of WIFI module 3, realize that the mutual assistance of WIFI module 3 location and GPS module 2 location becomes, strengthen the stability of data transmission between antenna and the module through 50 ohm radio frequency lines, make the locating information collection system of this application in the network adverse circumstances, still can normally work, make locating information more reliable.

The GPS has a hot start characteristic, the GPS can store the received ephemeris data after searching for a satellite, the GPS closed ephemeris data cannot be lost under the condition that a hot backup power supply is turned on, the GPS is turned on next time, the GPS can successfully position according to the last ephemeris data quickly, but the GPS satellite above the equipment is updated once within 4 hours, the last stored ephemeris data is invalid when the GPS is turned off for more than 4 hours, the WIFI module is arranged for assisting positioning, the problem of data loss caused by GPS positioning can be well solved, a user has better product use experience, and data storage of positioning information is enhanced.

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 low-power consumption locator based on an NB-IOT chip OpenCPU scheme is characterized by comprising

The portable intelligent charging device comprises a shell, an NB-IOT chip installed in the shell, a GPS module and a WIFI module connected with the NB-IOT chip, and a power supply module supplying power to the NB-IOT chip, the GPS module and the WIFI module, wherein a battery jar and a mounting groove are formed in the shell, the power supply module is fixedly installed in the battery jar, the NB-IOT chip, the GPS module and the WIFI module are fixedly installed in the mounting groove, a charging port is formed in one side of the shell and connected with the power supply module, an IC card socket is formed in the other side of the shell and connected with the NB-IOT chip.

2. The low power consumption locator according to claim 1, further comprising a charger including 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, wherein 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 pin VIN 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 connected to the ground of the NCNB-NB-chip 1, and the battery charging management chip is connected to the pin NCNB 1 via the resistor NB 1, 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.

3. The low-power consumption locator based on the NB-IOT chip OpenCPU scheme as claimed in claim 1 or 2, further comprising a low-noise amplifier, a filter, and a first antenna, wherein the input terminal of the first antenna inputs the locating information, the output terminal of the first antenna is connected to the input terminal of the filter, the output terminal of the filter is connected to the input terminal of the low-noise amplifier, the output terminal of the low-noise amplifier is connected to the GPS module, the low-noise amplifier and the filter are both mounted in a mounting groove, and the first antenna is mounted on one side of the housing.

4. The low-power consumption locator based on the NB-IOT chip OpenCPU scheme according to claim 3, 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 and the acquisition switch are all connected with the NB-IOT chip, the gravity sensor, the temperature sensor, the photosensitive element, the light-emitting element and the acquisition switch are all installed in an installation groove, and the ESIM card is in matching connection with the IC card socket.

5. The low-power consumption locator based on the NB-IOT chip OpenCPU scheme as claimed in claim 1, further comprising a second antenna, wherein positioning information is input at an input end of the second antenna, an output end of the second antenna is connected to the WIFI module, and the second antenna is mounted on one side of the housing.

6. The low-power consumption locator of claim 1, wherein the locator is connected to the NB-IOT chip, and the timer is installed in the installation slot.

7. The NB-IOT chip OpenCPU scheme-based low power consumption locator of claim 4, wherein the photosensor comprises a capacitor C111, a resistor R112, a resistor R113, a transistor Q1 and an over-voltage protection chip U15, wherein pin 1 of the over-voltage 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 all 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 over-voltage protection chip U15 are all grounded.

8. The NB-IOT chip OpenCPU scheme-based low-power consumption locator of claim 4, further comprising a GPS enabling module, wherein the GPS enabling module comprises an enabling chip U3, a capacitor C14, a capacitor C15, an enabling signal and a resistor R13, the IN pin of the enabling chip U3 is connected with the power supply module and the first end of the capacitor C14 respectively, the second end of the capacitor C14 is grounded, the EN pin of the enabling chip U3 is connected with one end of the resistor R13 and the enabling signal respectively, the other end of the resistor R13 is grounded, the GND pin of the enabling chip U3 is grounded, the OUT pin of the enabling chip U3 is connected with the GPS module and the first end of the capacitor C15 respectively, and the second end of the capacitor C15 is grounded.