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On-board GPS device having power supply, signal isolation function

A GPS device and signal isolation technology, applied in the field of vehicle GPS, can solve problems such as low system stability, GPS device failure, and poor reliability, so as to improve reliability and efficiency, reduce equipment cost, and improve stability and reliability sexual effect

Inactive Publication Date: 2016-07-20
XIAMEN YAXON NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once one of the isolation devices fails, it may cause the entire GPS device to fail or even burn out due to a short circuit of the power supply, resulting in low system stability and poor reliability.

Method used

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  • On-board GPS device having power supply, signal isolation function
  • On-board GPS device having power supply, signal isolation function

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Embodiment

[0014] See figure 2 As shown, a kind of vehicle-mounted GPS equipment with power supply and signal isolation of the present invention includes GPS module 3, GSM module 2, power supply module 1, MCU processor 4, switching value acquisition interface 5, bus interface 6 and sensor acquisition interface 7 The switching value collection interface 5, the bus interface 6 and the sensor collection interface 7 are respectively connected with the MCU processor 4, and the power supply module 1 is connected with the GPS module 3 and the GSM module 2 respectively; The device 4 is connected; the GSM module 2 is connected to the MCU processor 4 through an isolation signal device 9; the GPS module 3 is connected to the GSM module 4.

[0015] Furthermore, the MCU processor 4 adopts a Cortex-M3 or Cortex-M0 processor.

[0016] Furthermore, the bus interface 6 includes one or more of CAN, RS485, RS232, and K lines.

[0017] Furthermore, the isolated power supply device 8 is a coil self-excite...

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PUM

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Abstract

The invention discloses an on-board GPS device having a power supply, signal isolation function. The on-board GPS device comprises a GPS module, a GSM module, a power supply module, a MCU processor, a switch amount acquisition interface, a bus interface, and a sensor acquisition interface. The switch amount acquisition interface, the bus interface, and the sensor acquisition interface are respectively connected with the MCU processor, and the power supply module is respectively connected with the GPS module and the GSM module. The power supply module is connected with the MCU processor by an isolation power supply device. The GSM module is connected with the MCU processor by an isolation signal device. The GPS module is connected with the GSM module. By adopting the above mentioned structure, the integrated system is simplified, and the stability and the reliability are improved.

Description

technical field [0001] The invention relates to the technical field of vehicle-mounted GPS, in particular to a vehicle-mounted GPS device with power supply and signal isolation. Background technique [0002] Due to the requirements of safety and real-time positioning and reporting data, the vehicle-mounted GPS device needs to maintain a link with the network to supply power for constant power. Therefore, it is necessary to isolate the power supply and signal between the GPS equipment and each interface, so as to prevent the power supply from the interface to be grounded through the GPS equipment after each interface cuts off the power supply, and burn out the device. The principle block diagram of prior art is as figure 1 As shown, the GSM module 2', the switching value acquisition interface 5', the bus interface 6' and the sensor acquisition interface 7' are connected to the MCU processor 4' respectively, and the GPS module 3' is connected to the The GSM module 2' is conn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 叶志聪汤益明蔡运文张航其蔡炎平
Owner XIAMEN YAXON NETWORKS CO LTD
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