Vehicle-mounted positioning terminal

Abstract

The vehicle-mounted positioning terminal comprises a power supply module which comprises a USB power supply module, a charging management module and a lithium battery power supply module which are connected in sequence; the power supply selection module is electrically connected with the USB power supply module and the lithium battery power supply module and is used for selecting power supply modules; the boosting module is electrically connected with the power supply selection module and is used for boosting the power supply; the main control MCU module is electrically connected with the boosting module through a first voltage stabilizing module and is used for processing the collected information; the wireless communication module is electrically connected with the boosting module through a second voltage stabilizing module; the wireless communication module is connected with the master control MCU module in a UART serial port mode and transmits data to a comprehensive management platform in a wireless mode. According to the utility model, the satellite positioning chip is adopted, the accuracy of vehicle information is greatly improved, the comprehensive management platform is used, the working efficiency and the management capability are greatly improved, and the capital consumption is indirectly reduced.

Description

Technical Field

[0001] This utility model relates to a vehicle management system, and more particularly to an on-board positioning terminal that operates during power outages and transmits wirelessly. Background Technology

[0002] Currently, most companies manage their vehicles using traditional, manual methods. These methods often present the following problems in practice:

[0003] I. Inefficiency: Traditional manual scheduling and approval methods are seriously lagging behind the development needs of modern enterprises, resulting in untimely and inaccurate vehicle scheduling;

[0004] Second, inadequate supervision: Under traditional management methods, it is difficult for enterprises to grasp the dynamic information of vehicles in real time, such as location, speed, and driving route, resulting in blind spots in vehicle supervision;

[0005] Third, inaccurate data: Traditional manual reporting methods are prone to inaccurate and untimely data, which makes it impossible for enterprise management to accurately understand key information such as vehicle usage, maintenance costs, and fuel consumption, thereby affecting the scientific nature of decision-making. Utility Model Content

[0006] To address the above problems, this utility model provides a vehicle-mounted positioning terminal that supports remote monitoring and operation even when power is off.

[0007] The technical solution of this utility model is:

[0008] The vehicle-mounted positioning terminal includes:

[0009] The power supply module includes a USB power supply module, a charging management module, and a lithium battery power supply module connected in sequence.

[0010] A power supply selection module is electrically connected to both the USB power supply module and the lithium battery power supply module, and is used to select the power supply module.

[0011] The boost module is electrically connected to the power selection module and is used for boosting the power supply voltage.

[0012] The main control MCU module is electrically connected to the boost module through the first voltage regulator module and is used to process the collected information;

[0013] The wireless communication module is electrically connected to the boost module through the second voltage regulator module; the wireless communication module is connected to the main control MCU module via UART serial port and transmits data to the integrated management platform wirelessly.

[0014] Specifically, the lithium battery power supply module includes:

[0015] The lithium battery charging management module connects to the USB power supply module on one end and to the lithium battery on the other end, and is used to charge the lithium battery.

[0016] The lithium battery is connected to the power supply system of the entire module through the terminal block and is used for power supply in the event of a power outage;

[0017] Specifically, the first voltage regulator module is a 3.3V voltage regulator module.

[0018] Specifically, the second voltage regulator module is a 3.8V voltage regulator module.

[0019] Specifically, the main control MCU module uses the STM32G070RBT6 chip.

[0020] Specifically, the wireless communication module is an EC800MCNGB-I03-SGNSA communication module.

[0021] Specifically, the lithium battery charging management module uses the CN3162 lithium battery management chip.

[0022] Specifically, the power supply selection module includes a P-channel MOSFET, an N-channel MOSFET, and a diode;

[0023] The USB power supply module is connected to the boost module via a diode. The gate of the N-channel MOSFET is connected to the main control MCU, the source is grounded, and the drain is connected to the gate of the P-channel MOSFET. The source of the P-channel MOSFET is connected to the positive terminal of the lithium battery, and the drain of the P-channel MOSFET is connected to the boost module via a diode.

[0024] Specifically, the boost module uses the MC34063 power chip.

[0025] Specifically, the 3.3V voltage regulator module is an IFX1117GSV33 linear regulator.

[0026] The power supply for this device can be provided by both USB power and lithium battery power. When the device is powered via USB, part of the power is used by the charging management module to charge the lithium battery (the lithium battery is not working), and the other part powers the device. When the device is not powered via USB, the lithium battery can directly power the device. The power supply selection is accomplished by a power supply selection module. When powering the device, the voltage is first increased by a boost module, mainly to address the issue of insufficient voltage when powered by the lithium battery. The boosted voltage is then regulated by a 3.3V voltage regulator module before powering the main control MCU module. Another portion of the boosted voltage is regulated by a 3.8V voltage regulator module before powering the communication module. The communication module's main function is to collect satellite data and upload data processed by the main control MCU to the integrated management platform. The main control MCU's main function is to process the data collected by the communication module. Simultaneously, this invention employs a wireless communication module to achieve remote monitoring of vehicle location information. The lithium battery power supply ensures normal operation even when the vehicle is off. The use of a satellite positioning chip greatly improves the accuracy of vehicle information, and the integrated management platform significantly improves work efficiency and management capabilities, indirectly reducing capital consumption. Attached Figure Description

[0027] Figure 1 This is a schematic block diagram of the structure of this utility model;

[0028] Figure 2 This is the circuit schematic diagram of the main control MCU module of this utility model;

[0029] Figure 3 This is the circuit schematic diagram of the wireless communication module of this utility model;

[0030] Figure 4 This is the circuit schematic diagram of the USB power supply module of this utility model;

[0031] Figure 5 This is the circuit schematic diagram of the power supply selection module of this utility model;

[0032] Figure 6 This is the circuit schematic diagram of the charging management module of this utility model;

[0033] Figure 7 This is the circuit schematic diagram of the boost module of this utility model;

[0034] Figure 8 This is the circuit schematic diagram of the 3.3V voltage regulator module of this utility model;

[0035] Figure 9 This is the circuit schematic of the 3.8V voltage regulator module of this utility model. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] The vehicle-mounted positioning terminal includes:

[0038] The power supply module includes a USB power supply module, a charging management module, and a lithium battery power supply module connected in sequence. The USB power supply module in this case uses a TYPE-C 6P interface; this is a Type-C interface. Type-C is a USB interface standard with a smaller size than both Type-A and Type-B, and can be used in both PCs (host devices) and external devices (slave devices, such as mobile phones).

[0039] A power supply selection module is electrically connected to both the USB power supply module and the lithium battery power supply module, and is used to select the power supply module.

[0040] The power selection module includes a P-channel MOSFET, an N-channel MOSFET, and a diode;

[0041] The USB power supply module is connected to the boost module via a diode. The gate of the N-channel MOSFET is connected to the main control MCU, the source is grounded, and the drain is connected to the gate of the P-channel MOSFET. The source of the P-channel MOSFET is connected to the positive terminal of the lithium battery, and the drain of the P-channel MOSFET is connected to the boost module via a diode.

[0042] When powered by a USB power supply module, the gate voltage of the N-channel MOSFET is 0, and the source voltage is grounded, thus turning it off. At this time, the gate voltage of the P-channel MOSFET is the voltage of the lithium battery, and the source voltage is equal to the gate voltage, resulting in zero voltage drop, so it is also turned off. In this case, only the USB power supply module can provide power.

[0043] When the USB power supply module stops supplying power, the gate voltage of the N-channel MOSFET is 3.3V, and the source voltage is grounded, forming a voltage drop, thus turning it on. At this time, the gate voltage of the P-channel MOSFET is 0V, and the source voltage is equal to the battery voltage, resulting in a negative voltage drop, thus turning it on. At this time, the lithium battery powers the entire system to work normally.

[0044] Specifically, the power selection module uses a circuit composed of a P-channel MOSFET, an N-channel MOSFET, and a diode. When USB power is supplied, the N-channel MOSFET is turned off, and the P-channel MOSFET is also turned off, so the current from the lithium battery will not flow to the boost module. When USB power is turned off, the N-channel MOSFET is turned on, and the P-channel MOSFET is also turned on, so the current from the lithium battery will flow to the boost module.

[0045] The boost module, electrically connected to the power selection module, is used for power boosting; the boost module uses the MC34063 power chip. As a power chip, the MC34063 can boost the battery voltage to 5V via an internal boost converter to provide power to the device during power outages.

[0046] The main control MCU module is electrically connected to the boost module through the first voltage regulator module and is used to process the acquired information. The main control MCU module uses an STM32G070RBT6 chip.

[0047] The wireless communication module is electrically connected to the boost module through the second voltage regulator module; the wireless communication module is connected to the main control MCU module via UART serial port and transmits data to the integrated management platform wirelessly.

[0048] The wireless communication module used is the EC800MCNGB-I03-SGNSA communication module. One end connects to the main control MCU module via a UART serial port, and the other end connects wirelessly to the integrated management platform via the TCP / IP communication protocol. Using the wireless communication module as the data transmission carrier, the integrated management platform can send control commands and parameter modification commands to the terminal devices. The terminals can upload various collected data to the integrated management platform, including water level data, pump operating mode, pump operating status, and pump fault status.

[0049] UART serial communication, or Universal Asynchronous Receiver / Transmitter, is a universal serial data bus used for asynchronous communication. This bus enables bidirectional communication, allowing for full-duplex transmission and reception.

[0050] TCP / IP, or Transmission Control / Network Protocol, is also known as the network communication protocol. It is the most fundamental communication protocol used in network applications.

[0051] In this case, the first voltage regulator module is a 3.3V voltage regulator module. The 3.3V voltage regulator module is an IFX1117GSV33 linear regulator.

[0052] The second voltage regulator module is a 3.8V voltage regulator module. The 3.8V voltage regulator module uses the TPS562201DDCR power supply chip.

[0053] The lithium battery power supply module includes:

[0054] The lithium battery charging management module is connected to the USB power supply module on one end. When powered by USB, the USB power supply will also power the management module. The other end is connected to the lithium battery for charging the lithium battery.

[0055] The lithium battery is connected to the power supply system of the entire module via a terminal block and is used for power supply in the event of a power outage.

[0056] The charging management module uses the CN3162 lithium battery management chip. The CN3162 is an integrated circuit that can manage the charging of rechargeable lithium batteries. The lithium battery used in this case is an 18650 lithium battery. Together with external components, it provides a constant charging voltage of 4.2V to the battery, realizing the charging management and protection of the battery and extending the battery's lifespan.

[0057] This utility model is as follows Figure 1-9 As shown, the vehicle-mounted positioning terminal first selects the power supply mode when the device is powered by the USB power supply module. Part of the current flows to the power supply selection module, and part flows to the charging management module. The current flowing to the power supply selection module triggers the selection mechanism, at which point the lithium battery power supply is cut off. The current flowing to the charging management module is used to charge the lithium battery. During charging, the charging management module monitors the battery level. When the battery is not fully charged, it charges the lithium battery; when it detects that the lithium battery is fully charged, it stops charging. When the vehicle is turned off, USB power supply stops, and the power supply selection module selects to power the lithium battery. The current selected by the power supply selection module flows to the boost module. Since the minimum operating voltage of the lithium battery is lower than the minimum operating voltage of 3.3V, the boost module needs to boost the voltage to 5V. Part of the boosted current flows to the 3.3V voltage regulator module to modulate a stable 3.3V voltage to power the main control MCU, and the other part flows to the 3.8V voltage regulator module to modulate a stable 3.8V voltage to power the communication module. When the main control MCU is powered on, it initializes its parameters and then sends data to the communication module via the UART serial port to establish a TCP connection. After the TCP connection is established, it sends login information to the integrated management platform. The main control MCU periodically sends satellite data requests to the communication module, processes the received data, and then sends it to the integrated management platform via the communication module. By logging into the integrated management platform via mobile phone or computer, users can view the vehicle's latest location information.

[0058] Regarding the information disclosed in this case, the following points need to be clarified:

[0059] (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design.

[0060] (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments;

[0061] The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. A vehicle-mounted positioning terminal, characterized in that, include: The power supply module includes a USB power supply module, a charging management module, and a lithium battery power supply module connected in sequence. A power supply selection module is electrically connected to both the USB power supply module and the lithium battery power supply module, and is used to select the power supply module. The boost module is electrically connected to the power selection module and is used for boosting the power supply voltage. The main control MCU module is electrically connected to the boost module through the first voltage regulator module and is used to process the collected information; The wireless communication module is electrically connected to the boost module through the second voltage regulator module; the wireless communication module is connected to the main control MCU module via UART serial port and transmits data to the integrated management platform wirelessly.

2. The vehicle-mounted positioning terminal according to claim 1, characterized in that, The lithium battery power supply module includes: The lithium battery charging management module is connected to the USB power supply module at one end and to the lithium battery at the other end, and is used to charge the lithium battery. The lithium battery is connected to the power supply system of the entire module via a terminal block and is used for power supply in the event of a power outage.

3. The vehicle-mounted positioning terminal according to claim 1, characterized in that, The first voltage regulator module is a 3.3V voltage regulator module.

4. The vehicle-mounted positioning terminal according to claim 1, characterized in that, The second voltage regulator module is a 3.8V voltage regulator module.

5. The vehicle-mounted positioning terminal according to claim 1, characterized in that, The main control MCU module uses the STM32G070RBT6 chip.

6. The vehicle-mounted positioning terminal according to claim 1, characterized in that, The wireless communication module is an EC800MCNGB-I03-SGNSA communication module.

7. The vehicle-mounted positioning terminal according to claim 2, characterized in that, The lithium battery charging management module uses the CN3162 lithium battery management chip.

8. The vehicle-mounted positioning terminal according to claim 1, characterized in that, The power supply selection module includes a P-channel MOSFET, an N-channel MOSFET, and a diode; The USB power supply module is connected to the boost module via a diode. The gate of the N-channel MOSFET is connected to the main control MCU, the source is grounded, and the drain is connected to the gate of the P-channel MOSFET. The source of the P-channel MOSFET is connected to the positive terminal of the lithium battery, and the drain of the P-channel MOSFET is connected to the boost module via a diode.

9. The vehicle-mounted positioning terminal according to claim 1, characterized in that, The boost module uses the MC34063 power chip.

10. The vehicle-mounted positioning terminal according to claim 3, characterized in that, The 3.3V voltage regulator module is an IFX1117GSV33 linear regulator.

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