Vehicle-mounted positioning system of lithium-manganese battery and positioning device of vehicle-mounted positioning system

Abstract

The utility model provides a lithium manganese dioxide battery vehicle-mounted positioning system and a positioning device thereof, comprising a lithium manganese dioxide battery, the lithium manganese dioxide battery has two output ends, the first output end is connected with an LDO chip, and the second output end is connected with a BOOST boost chip; the LDO chip is provided with a plurality of output ends, and is connected with an MCU microcontroller and a GNSS chip through a first VCC interface; the BOOST chip is connected with a communication module through a second VCC interface; a Boost-EN pin which is connected to the BOOST chip is distributed on the MCU microcontroller, and a GPS (Global Positioning System)-EN pin which is connected to a VCC (Voice Call Continuity) interface of the GNSS chip is distributed on the MCU microcontroller. The vehicle-mounted positioning system of the lithium-manganese battery does not need to be externally connected with any power supply, and the purpose of long-time working can be achieved through an ultra-low power consumption mode.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle networking, and in particular to a vehicle-mounted positioning system of a lithium-manganese battery and a positioning device thereof. Background Art

[0002] The world has gradually entered the era of the Internet of Things. For trucks and truck companies, driving safety is of paramount importance. The on-board positioning system has become an indispensable device in automobiles, enabling remote devices to know the location information of the vehicle and achieve emergency communication when an abnormality occurs.

[0003] At present, most vehicle-mounted positioning devices draw power from the vehicle's generator when the vehicle is in the starting state, and draw power from the vehicle's battery after the vehicle is turned off to ensure that it is always in working condition. Such vehicle-mounted positioning devices need to be powered by an external power supply at all times, which is severely limited by power. It is easy to shut down due to low battery power on the vehicle, and cannot work for a long time, resulting in the remote device being unable to obtain vehicle location information for a long time.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The utility model aims to provide a vehicle-mounted positioning system of a lithium-manganese battery. The vehicle-mounted positioning system of the lithium-manganese battery does not need any external power supply and can achieve the purpose of long-term operation through an ultra-low power consumption mode.

[0006] In order to achieve the above-mentioned purpose of the utility model, the following technical solutions are specially adopted:

[0007] The utility model provides a vehicle-mounted positioning system of a lithium manganese battery, comprising a lithium manganese dioxide battery, wherein the lithium manganese dioxide battery has two output ends, a first output end is connected to an LDO chip, and a second output end is connected to a BOOST boost chip;

[0008] The LDO chip has several output terminals, and is connected to an MCU microcontroller and a GNSS chip via a first VCC interface; the BOOST chip is connected to a communication module via a second VCC interface;

[0009] The MCU microcontroller is allocated with a Boost-EN pin connected to the BOOST boost chip, and the MCU microcontroller is allocated with a GPS-EN pin connected to the VCC interface of the GNSS chip.

[0010] Different from the prior art, the utility model adopts a disposable battery-powered solution, with a built-in lithium manganese dioxide battery as the main power supply. First of all, the lithium manganese dioxide battery is a disposable consumer battery, which has the advantages of large energy and convenient use, and can provide sufficient power support for the vehicle positioning system. After the voltage output by the battery is converted into different working voltages through the LDO chip and the BOOST boost chip, the first VCC interface and the second VCC interface are used to power various components in the system.

[0011] Secondly, in order to extend the service life of the system, it is necessary to reduce the power consumption during use as much as possible. The circuit design of the utility model enables the power supply of the communication module and the GNSS chip to be turned on by enabling the MCU microcontroller, while the power supply to the MCU microcontroller is in the normally-on mode. When the vehicle is driving normally, the communication module and the GNSS chip are not turned on, and the MCU microcontroller is in an ultra-low power sleep state. Only when an abnormal situation occurs in the vehicle will the system be triggered to wake up from the deep sleep state, which greatly extends the service life of the system.

[0012] Preferably, an external power supply module is further included, the external power supply module includes an external power supply, the external power supply is connected to a BUCK step-down chip, and is connected to the lithium manganese dioxide battery through a power selection circuit.

[0013] Since lithium manganese dioxide batteries are disposable consumer batteries, in order to reduce unnecessary consumption, an external power supply module is set up so that it can be used with an external power supply during normal production and debugging. Through the power selection circuit, when both the external power supply and the lithium manganese dioxide battery are present, the system will not use the battery power.

[0014] Preferably, a sensor module is further included, the sensor module is connected to the MCU microcontroller via an I2C bus, and the sensor module is connected to a first VCC interface.

[0015] Preferably, the sensor module includes an acceleration sensor and a temperature and humidity sensor.

[0016] The lithium manganese dioxide battery also powers the sensor. When an abnormal situation occurs, the sensor will activate the MCU microcontroller to work, and send acceleration, temperature and humidity data to the MCU microcontroller through the I2C bus, and then the MCU microcontroller will carry out the next step of information transmission.

[0017] Preferably, a photoresistor is further included, and the photoresistor is connected to the first VCC interface. The photoresistor can play an anti-theft function, and the photoresistor is arranged at the bottom of the device. Under normal circumstances, the position where the device is attached to the vehicle is in a dark state. When the device is maliciously disassembled, a photosensitive interrupt will be immediately triggered, and then the MCU microcontroller will send an event package to the communication module and inform the user.

[0018] Preferably, the communication module is provided with a SIM card interface or an ESIM card is built in. The user can choose to use the SIM card of the local operator by disassembling the device, or choose the ESIM soldered inside before leaving the factory, so that after the communication module receives the data packet from the MCU microcontroller, it starts to register the network and send the data packet to the server terminal, and the user can receive the message within a few seconds.

[0019] Preferably, the MCU microcontroller is connected to the communication module via a serial port, and the MCU microcontroller is connected to the GNSS chip via a serial port, so that the GNSS chip sends coordinate information to the communication module via serial port communication, and the MCU microcontroller sends sensor data and the like to the communication module via serial port communication.

[0020] The utility model also provides a vehicle-mounted positioning device of a lithium manganese battery using the vehicle-mounted positioning system of the lithium manganese battery, comprising an external shell, wherein the external shell is provided with five metal springs for use in testing and external power supply; an external GPIO is also reserved for interruption or output level.

[0021] Preferably, the outer shell is a fully enclosed design that is waterproof and anti-static, and the back of the outer shell is provided with adhesive and a magnet plate is reserved.

[0022] The waterproof and anti-static fully enclosed design can prevent the device from being disturbed by the external environment and extend its service life. The device can be directly glued to the car surface during installation, which is convenient for installation; the reserved high-strength magnet plate will also adsorb the device to the iron surface to improve the stability of the bonding.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] (1) The device of the utility model adopts a disposable battery power supply design, does not require any external power supply, is simple to operate and easy to install, and can be installed and used immediately.

[0025] (2) Lithium manganese dioxide batteries are used as the main power supply, making full use of their high energy and convenient use characteristics. Combined with the system's ultra-low power consumption mode, the service life is greatly extended to up to eight years.

[0026] (3) The system is equipped with a variety of sensors, GNSS chips and communication modules. When an abnormal situation occurs, the system can be awakened in time and data such as coordinates, acceleration, temperature and humidity can be sent to the server terminal to achieve emergency communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0028] Figure 1 This is a circuit design diagram of the vehicle-mounted positioning system of the lithium-manganese battery provided in an embodiment of the utility model.

[0029] Among them: 1-lithium manganese dioxide battery, 2-MCU microcontroller, 3-communication module, 4-GNSS chip, 5-sensor module, 6-external power supply module, 7-LED;

[0030] 11-LDO chip, 12-BOOST boost chip, 13-first VCC interface, 14-second VCC interface, 15-BUCK step-down chip;

[0031] 21-Boost-EN pin, 22-GPS-EN pin, 23-serial communication, 24-I2C bus;

[0032] 31-external power supply, 32-metal shrapnel, 33-GPIO port;

[0033] 41-SIM card interface, 42-ESIM card; DETAILED DESCRIPTION

[0034] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the utility model, rather than all of the embodiments, and are only used to illustrate the utility model, and should not be considered as limiting the scope of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. If the specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixed connection, detachable connection, or integrated connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In order to more clearly explain the technical solution of the present invention, it is described in the form of specific embodiments below.

[0038] Example

[0039] like Figure 1 As shown, this embodiment provides a vehicle-mounted positioning system of a lithium manganese battery, which mainly includes a lithium manganese dioxide battery 1, an MCU microcontroller 2, a GNSS chip 4, a communication module 3, a sensor module 5 and a photoresistor.

[0040] Among them, the present embodiment uses a 24000mAh fully charged 3V lithium manganese dioxide battery 1, which has two output ends, the first output end is connected to the LDO chip 11, and the second output end is connected to the BOOST boost chip 12. The battery output 3V voltage is converted to a 1V8 system voltage through the LDO chip 11, and is provided to the MCU microcontroller 2, the GNSS chip 4, the sensor module 5, the LED 7 and the photoresistor through the first VCC interface 13; the battery output 3V voltage is converted to a 3V6 system voltage through the BOOST boost chip 12, and is provided to the communication module 3 through the second VCC interface 14.

[0041] Among them, the MCU microcontroller 2 is allocated with a Boost-EN pin 21 connected to the BOOST boost chip 12, and is also allocated with a GPS-EN pin 22 connected to the VCC interface of the GNSS chip. Through the Boost-EN pin 21 and the GPS-EN pin 22, the MCU microcontroller 2 has the power supply enable of the communication module 3 and the GNSS chip 4. The MCU microcontroller 2 is also connected to the communication module 3 and the GNSS chip 4 respectively through the serial port communication 23 to realize the data transmission to the communication module 3.

[0042] The sensor module 5 includes an acceleration sensor and a temperature and humidity sensor. The sensor module 5 is connected to the MCU microcontroller 2 via an I2C bus 24 to transmit acceleration, temperature and humidity data to the communication module 3 via the MCU microcontroller 2 .

[0043] Among them, the communication module 3 is provided with a SIM card interface 41 or a built-in ESIM card 42. The user can choose to use the SIM card of the local operator by disassembling the machine, or choose the ESIM card soldered inside before leaving the factory. The PCB board inside the communication module has this option.

[0044] An external power supply module 6 is also provided, including an external power supply 31. The external power supply 31 provides a system voltage of 3V8 by connecting a BUCK step-down chip 15, and then is connected to the lithium manganese dioxide battery 1 through a power selection circuit. During normal production and debugging, this system can be used by using the external power supply 31. When both the external power supply 31 and the lithium manganese dioxide battery 1 are present, the system will not use the battery power, and the external power supply 31 will not charge the battery. The system voltage provided by the external power supply 31 will power other components through the above-mentioned LDO and BOOST step-up chips.

[0045] The utility model also provides a vehicle-mounted positioning device for lithium manganese batteries using the above system, including an external shell, the entire external shell adopts an IP67-level waterproof and anti-static fully enclosed design, a VHB high-performance double-sided adhesive is set on the back, and a high-strength magnet plate is reserved. When using it, the user can directly stick it on the car surface with the double-sided adhesive, and the high-strength magnet plate will also adsorb the device to the iron surface. After sticking, the system can be activated by pressing a button on the device.

[0046] The outer shell is also provided with five metal springs 32 at the corresponding positions of the external power supply module for testing and external power supply. In addition, an external GPIO port 33 is reserved for interruption or output level.

[0047] The lithium manganese battery vehicle positioning system of the utility model operates as follows: when the vehicle is driving normally, the device will be in a deep sleep state, at which time the MCU microcontroller 2 is in low power consumption, the power supply of the communication module 3 and the GNSS chip 4 will be turned off, and the sensor module 5 is also in a low power consumption mode, but not shut down. At this time, the current in the whole machine is only 8UA.

[0048] Since it is in a safe low-power state most of the time, the power consumption is as low as 8UA-3V, and only one data packet is sent a day to report the status and location of the truck. This process only takes about 1 minute and 30 seconds, and the average power consumption is 70mA-3V, so the service life of the system can be up to eight years. In addition, users can also configure the packet interval according to their needs (default 24H / packet).

[0049] When the vehicle is driving abnormally, the sensor module 5 will activate the MCU microcontroller 2 to the working state. At this time, the power supply of the communication module 3 and the GNSS chip 4 is turned on. The GNSS chip 4 will immediately locate the current coordinates (within 50 seconds), and then send the coordinate information to the communication module 3 through the serial communication 23. The sensor module 5 will also send the data of each sensor, such as acceleration and temperature and humidity data, to the MCU microcontroller 2 through the I2C bus, and the MCU microcontroller 2 will send it to the communication module 3. After receiving the data, the communication module 3 starts to register the network and send the data to the server terminal, and then the user will receive the message within a few seconds.

[0050] Since the photoresistor is provided, the device is usually in a dark state. When it is maliciously dismantled, a photosensitive interrupt will be immediately triggered, and then the MCU microcontroller 2 will immediately send an event package to the communication module 3 to inform the user, thereby achieving the effect of anti-theft and anti-disassembly.

[0051] Finally, it is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the principles and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A vehicle-mounted positioning system for a lithium manganese battery, characterized in that: A lithium manganese dioxide battery is included, wherein the lithium manganese dioxide battery has two output ends, a first output end is connected to an LDO chip, and a second output end is connected to a BOOST boost chip; The LDO chip has several output terminals, and is connected to an MCU microcontroller and a GNSS chip via a first VCC interface; the BOOST chip is connected to a communication module via a second VCC interface; The MCU microcontroller is allocated with a Boost-EN pin connected to the BOOST boost chip, and the MCU microcontroller is allocated with a GPS-EN pin connected to the VCC interface of the GNSS chip.

2. The vehicle-mounted positioning system of lithium manganese battery according to claim 1, characterized in that: It also includes an external power supply module, which includes an external power supply. The external power supply is connected to a BUCK step-down chip and is connected to the lithium manganese dioxide battery through a power selection circuit.

3. The vehicle-mounted positioning system of lithium manganese battery according to claim 1, characterized in that: It also includes a sensor module, which is connected to the MCU microcontroller via an I2C bus, and the sensor module is connected to a first VCC interface.

4. The vehicle-mounted positioning system of lithium manganese battery according to claim 3, characterized in that: The sensor module includes an acceleration sensor and a temperature and humidity sensor.

5. The vehicle-mounted positioning system of lithium manganese battery according to claim 1, characterized in that: A photoresistor is also included, and the photoresistor is connected to a first VCC interface.

6. The vehicle-mounted positioning system of lithium manganese battery according to claim 1, characterized in that: The communication module is provided with a SIM card interface or has an ESIM card built in.

7. The vehicle-mounted positioning system of lithium manganese battery according to claim 1, characterized in that: The MCU microcontroller is connected to the communication module via a serial port, and the MCU microcontroller is connected to the GNSS chip via a serial port.

8. A vehicle-mounted positioning device for a lithium manganese battery using the vehicle-mounted positioning system for a lithium manganese battery according to any one of claims 1 to 7, characterized in that: It includes an external shell, which is provided with five metal springs for testing and external power supply; and an external GPIO is reserved for interruption or output level.

9. The vehicle-mounted positioning device for lithium manganese battery according to claim 8, characterized in that: The outer shell is a fully enclosed design that is waterproof and anti-static. The back of the outer shell is provided with adhesive and a magnet plate is reserved.

Images