CN215990284U - Device for controlling GPS terminal - Google Patents
Device for controlling GPS terminal Download PDFInfo
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- CN215990284U CN215990284U CN202122592265.3U CN202122592265U CN215990284U CN 215990284 U CN215990284 U CN 215990284U CN 202122592265 U CN202122592265 U CN 202122592265U CN 215990284 U CN215990284 U CN 215990284U
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- power
- gps terminal
- storage battery
- control circuit
- vehicle
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Abstract
The utility model discloses a device for controlling a GPS terminal. The device comprises a power plug, the power plug is connected with a charging control circuit and a switch module, the charging control circuit is connected with a storage battery, a voltage feedback circuit and a processor respectively, the processor is used for controlling the charging control circuit to work so as to charge the storage battery, the switch module is connected with the storage battery, the processor and a power output interface respectively, and the processor controls the switch module to work according to a voltage signal fed back by the voltage feedback circuit so as to control the power plug or the storage battery to supply power to the power output interface. The power plug can charge the storage battery by obtaining the vehicle-mounted power supply, and can supply power to the GPS terminal under the control of the switch module, so that the GPS terminal can be supplied with power by the storage battery after the vehicle is shut down, the electric quantity exhaustion caused by the adoption of the vehicle storage battery power supply is avoided, the working time of the GPS terminal after the vehicle is shut down can be set according to the use requirement, and the vehicle-mounted GPS terminal is convenient to use.
Description
Technical Field
The utility model relates to the technical field of devices for controlling a GPS terminal, in particular to a device for controlling a GPS terminal.
Background
The GPS terminal is combined with high-tech technologies such as a GPS satellite positioning technology, a GIS geographic information technology, a GPRS wireless communication technology, a distributed server technology and the like, is arranged in the automobile and has the functions of positioning, monitoring and the like. The power cord of the existing GPS terminal is generally directly connected with a USB interface or a cigarette lighter interface inside the vehicle so as to get electricity from a vehicle-mounted power plug. However, the existing USB interface or cigarette lighter interface inside the vehicle can supply power to the USB interface or cigarette lighter interface only when the vehicle start switch is in the on position, and when the vehicle start switch is not in the on position, the GPS terminal cannot work. In order to solve the problem, the GPS terminal is generally directly connected to the vehicle-mounted storage battery or a storage battery is added in the GPS terminal, and the direct connection to the vehicle-mounted storage battery may cause the electric quantity of the vehicle-mounted storage battery to be exhausted, so that the vehicle cannot be restarted. Because the GPS terminal has smaller size, the capacity of the storage battery which can be increased is smaller, and the requirement of normal use can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device for controlling a GPS terminal, aiming at the defects in the prior art.
In order to achieve the above object, the present invention provides a device for controlling a GPS terminal, including a power plug, where the power plug is used to connect with a vehicle-mounted power socket to obtain a working power, the power plug is connected with a charge control circuit and a switch module, the charge control circuit is respectively connected with a storage battery, a voltage feedback circuit and a processor, the processor is used to control the charge control circuit to work so as to charge the storage battery, the switch module is respectively connected with the storage battery, the processor and a power output interface, and the processor controls the switch module to work according to a voltage signal fed back by the voltage feedback circuit so as to control the power plug or the storage battery to supply power to the power output interface.
Furthermore, the processor is connected with a power switch and a power output control circuit, and the power output control circuit is connected between the power output interface and the switch module.
Furthermore, the processor is connected with a clock chip and a human-computer interaction unit.
Furthermore, the power plug is a cigarette lighter interface plug, and a voltage stabilizing module is connected between the switch module and the processor.
Further, the power output control circuit is connected with the output end of the voltage stabilizing module.
Further, the power output interface includes a cigarette lighter interface.
Further, the power output interface comprises a USB interface.
Has the advantages that: according to the vehicle-mounted power supply system, the power plug is connected with the vehicle-mounted power supply socket, the power plug obtains the vehicle-mounted power supply, on one hand, the storage battery can be charged through the charging control circuit, on the other hand, the GPS terminal is powered under the control of the switch module, the GPS terminal can be powered by the storage battery after the vehicle is flamed out, the electric quantity depletion caused by the fact that the vehicle storage battery is used for supplying power is avoided, the working time of the GPS terminal after the vehicle is flamed out can be set according to the using requirement, and the vehicle-mounted power supply system is convenient to use.
Drawings
Fig. 1 is a functional block diagram of an apparatus for controlling a GPS terminal according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of an apparatus for controlling a GPS terminal according to another embodiment of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides an apparatus for controlling a GPS terminal, including a power plug 1, where the power plug 1 is used to connect with a vehicle-mounted power socket to obtain operating power. Specifically, the power plug 1 may be a USB plug that can be connected to a vehicle-mounted USB socket to obtain a vehicle-mounted power supply of DC 5V. In order to fix the position of the device directly after connection to the vehicle-mounted power socket, the power plug 1 is preferably a cigarette lighter interface plug, and is adapted to obtain DC12V power from the vehicle-mounted cigarette lighter socket. The power plug 1 is connected with a charging control circuit 2 and a switch module 3, the charging control circuit 2 is respectively connected with a storage battery 4, a voltage feedback circuit 5 and a processor 6, the processor 6 can adopt a 51 single chip microcomputer or an STM32 single chip microcomputer, parameters such as rated voltage and capacity of the storage battery 4 can be changed according to requirements, the rated voltage of the storage battery 4 is preferably DC12V, and the processor 6 is used for controlling the charging control circuit 2 to work so as to charge the storage battery 4. The type of the switch module 3 is preferably tmux1136dgsr, the switch module 3 is connected with the storage battery 4, the processor 6 and the power output interface 7 respectively, and the processor 6 controls the switch module 3 to work according to the voltage signal fed back by the voltage feedback circuit 5 so as to control the power plug 1 or the storage battery 4 to supply power to the power output interface 7. Specifically, when the vehicle starting switch is in the on position, the power plug 1 can obtain a working power supply from the vehicle at the moment, the output end of the charging control circuit 2 is a high-level signal, the voltage feedback circuit 5 reduces the voltage and feeds the reduced voltage back to the processor 6, the processor 6 controls the switch module 3 to connect the power output interface 7 with the power plug 1, and the power supply provided by the vehicle is output to the GPS terminal. When the vehicle starting switch is not in the on position, the switch module 3 loses working power supply, and the power supply output interface 7 is automatically connected with the storage battery 4, so that the storage battery 4 supplies power to the GPS terminal. It should be noted that the storage battery 4 and the power output interface 7 are connected to the normally closed end of the switch module 3, that is, when the power plug 1 is powered off, the storage battery 4 and the power output interface 7 can be automatically connected.
In order to facilitate artificial control of the power output of the device, the processor 6 according to the embodiment of the present invention is connected to a power switch 8 and a power output control circuit 9, and the power output control circuit 9 is connected between the power output interface 7 and the switch module 3. The power switch 8 can control the input of the on-off signal, and the processor 6 controls the power output control circuit 9 to work according to the input on-off signal, so as to control the power output interface 7 to be connected or disconnected with the switch module 3. The power output control circuit 9 may adopt a switch control circuit such as a MOS transistor, a transistor, or a relay.
In order to set the working time of the GPS terminal after the vehicle is turned off, the processor 6 is connected with a clock chip 10 and a man-machine interaction unit 11. The model of the clock chip 10 is preferably RX8010SJ, the clock chip 10 can provide clock information for the processor, the human-computer interaction unit 11 can include a display screen and keys, and the power supply time of the device can be set as required through the human-computer interaction unit 11, for example, the power supply to the GPS terminal is stopped after the vehicle is turned off for 1 hour or 2 hours.
In addition, when the power plug 1 adopts a cigarette lighter interface plug, since the power plug 1 obtains a DC12V power from the vehicle, and the processor generally adopts a DC5V voltage, a voltage stabilizing module 12 is required to be connected between the switch module 3 and the processor 6, the preferred model of the voltage stabilizing module 12 is F1205S-2WR2, and the voltage stabilizing module 12 converts the DC12V voltage into a DC5V voltage to be provided to the GPS terminal.
Referring to fig. 1 and 2, the voltage output by the power output interface 7 according to the embodiment of the present invention may be DC12V, in this case, the preferred power output interface 7 is a cigarette lighter interface. The voltage output by the power output interface 7 is more preferably DC5V, and the input end of the power output control circuit 9 may be connected to the output end of the voltage stabilizing module 12, in this case, the power output interface 7 is preferably a USB interface.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that other parts not specifically described are within the prior art or common general knowledge to those of ordinary skill in the art. Without departing from the principle of the utility model, several improvements and modifications can be made, and these improvements and modifications should also be construed as the scope of the utility model.
Claims (7)
1. The utility model provides a device of control GPS terminal, its characterized in that, includes power plug, power plug is used for being connected with on-vehicle power socket to acquire working power, power plug is connected with charge control circuit and switch module, charge control circuit is connected respectively with battery, voltage feedback circuit and treater, the treater is used for controlling charge control circuit work, with right the battery charges, switch module is connected respectively with battery, treater and power output interface, the treater is according to the voltage signal control switch module work of voltage feedback circuit feedback to control power plug or battery are to the power output interface power supply.
2. The apparatus of claim 1, wherein the processor is connected to a power switch and a power output control circuit, and the power output control circuit is connected between the power output interface and the switch module.
3. The apparatus for controlling a GPS terminal according to claim 2, wherein the processor is connected with a clock chip and a human-computer interaction unit.
4. The apparatus of claim 2, wherein the power plug is a cigarette lighter interface plug, and a voltage regulator module is connected between the switch module and the processor.
5. The apparatus of claim 4, wherein the power output control circuit is connected to an output terminal of the voltage stabilization module.
6. The apparatus for controlling a GPS terminal according to claim 4, wherein the power output interface includes a cigarette lighter interface.
7. The apparatus for controlling a GPS terminal according to claim 5, wherein the power output interface includes a USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122592265.3U CN215990284U (en) | 2021-10-27 | 2021-10-27 | Device for controlling GPS terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122592265.3U CN215990284U (en) | 2021-10-27 | 2021-10-27 | Device for controlling GPS terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215990284U true CN215990284U (en) | 2022-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122592265.3U Active CN215990284U (en) | 2021-10-27 | 2021-10-27 | Device for controlling GPS terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215990284U (en) |
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2021
- 2021-10-27 CN CN202122592265.3U patent/CN215990284U/en active Active
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