Device for controlling power switch in wireless positioning vehicle-mounted terminal
A wireless positioning and vehicle-mounted terminal technology, which is applied in the direction of program control and electrical program control in the sequence/logic controller, can solve the problems of internal device damage and resource waste of wireless positioning vehicle-mounted terminals, and achieve easy monitoring, easy operation, Effects that are easy to achieve
Inactive Publication Date: 2013-04-17
CHENGDU RUIYI INFORMATION TECH
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Problems solved by technology
[0003] When the existing wireless positioning vehicle-mounted terminal works abnormally, the power supply will continue to supply power to it, and some devices in the wireless positioning vehicle-mounted terminal will continue to work, which will not only easily lead to damage to the internal components of the wireless positioning vehicle-mounted terminal, but also cause waste of resources
Method used
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Embodiment
[0013] Such as figure 1 As shown, the device for controlling the power switch in the wireless positioning vehicle terminal includes a PC, a USB data line, a switch circuit, a power supply, a temperature-sensitive resistor, and a wireless positioning vehicle terminal. The PC and the switch circuit are connected through a USB data cable. Both ends of the USB data cable are provided with a 4-pin USB male header and a 5-pin Micro USB male header. The 4-pin USB male end of the USB data cable is connected to the PC. The 5-pin Micro USB male end of the USB data cable is connected to the switch circuit, and the ID pin of the 5-pin Micro USB male connector is connected to a switch and then connected to the power pin of the 4-pin USB male connector.
[0014] Both the temperature-sensitive resistor and the wireless positioning vehicle terminal are connected to the switch circuit, and the other end of the temperature-sensitive resistor opposite to the end of the switch circuit is connected t...
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The invention discloses a device for controlling a power switch in a wireless positioning vehicle-mounted terminal. The device comprises a PC (Personal Computer), a USB (Universal Serial Bus) data line, a switch circuit, a temperature-sensitive resistor, a power supply and the wireless positioning vehicle-mounted terminal. One end of the USB data line is connected with the PC while the other end of the USB data line is connected with the switch circuit. The temperature-sensitive resistor and the wireless positioning vehicle-mounted terminal are connected with the switch circuit. The other end of the temperature-sensitive resistor, opposite to the end of the temperature-sensitive resistor connected with the switch circuit, is connected with the power supply. With the adoption of the structure, the device is simple in overall structure and convenient to realize. Whether the PC and the switch circuit are connected or not is controlled by controlling the USB data line, and the switch circuit controls whether the power supply supplies power to the wireless positioning vehicle-mounted terminal or not, so that the device is convenient to operate.
Description
Technical field [0001] The invention relates to a vehicle-mounted terminal, in particular to a device for controlling a power switch in a wireless positioning vehicle-mounted terminal. Background technique [0002] With the rapid development of wireless communication technology, its application fields are also expanding, and wireless positioning vehicle terminals are one of them. The wireless positioning vehicle terminal uses the global positioning system (GPS) to obtain the location information of the vehicle, and transmits it to the server or monitoring center through wireless communication (GSM / GPRS) to obtain location-related service information, such as surrounding road conditions, weather, etc., which is GPS , GIS technology and wireless communication technology. The wireless positioning vehicle terminal facilitates the vehicle management center to better monitor the vehicle, and the vehicle can better obtain related information services, making the vehicle operation more ...
Claims
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Inventor 任佳
Owner CHENGDU RUIYI INFORMATION TECH