CN103048932A - Device for controlling power switch in wireless positioning vehicle-mounted terminal - Google Patents
Device for controlling power switch in wireless positioning vehicle-mounted terminal Download PDFInfo
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- CN103048932A CN103048932A CN2012102655899A CN201210265589A CN103048932A CN 103048932 A CN103048932 A CN 103048932A CN 2012102655899 A CN2012102655899 A CN 2012102655899A CN 201210265589 A CN201210265589 A CN 201210265589A CN 103048932 A CN103048932 A CN 103048932A
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- mounted terminal
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- usb
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Abstract
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
The present invention relates to car-mounted terminal, specifically the device of control power switch in the wireless locating vehicle-mounted terminal.
Background technology
Along with the develop rapidly of wireless communication technique, its application is also constantly expanded, and wireless locating vehicle-mounted terminal is exactly one of them application.Wireless locating vehicle-mounted terminal utilizes GPS (GPS) to obtain the positional information of vehicle, (GSM/GPRS) sends server or Surveillance center to by wireless telecommunications, obtain the information on services relevant with the position, such as surrounding road condition, weather etc., it is the product of GPS, GIS technology and wireless communication technique combination.Wireless locating vehicle-mounted terminal is convenient to the better monitoring vehicle of car tube hub, vehicle can better obtain the relevant information service, make vehicle operating more convenient, information interchange is faster, accurate, so wireless locating vehicle-mounted terminal is widely used in the every field such as traffic, antitheft, navigation.
When operation irregularity appears in existing wireless locating vehicle-mounted terminal, power supply also can continue its power supply, part of devices in the wireless locating vehicle-mounted terminal will continuous firing, and this not only easily causes the wireless locating vehicle-mounted terminal internal components to be damaged, and can cause the wasting of resources.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of device of being convenient to control control power switch in the wireless locating vehicle-mounted terminal whether power supply is the wireless locating vehicle-mounted terminal power supply is provided.
Purpose of the present invention is achieved through the following technical solutions: the device of control power switch in the wireless locating vehicle-mounted terminal comprises PC, usb data line, on-off circuit, thermo-sensitive resistor, power supply and wireless locating vehicle-mounted terminal; Described usb data line one end is connected with PC, and its other end on-off circuit connects, and described thermo-sensitive resistor and wireless locating vehicle-mounted terminal all are connected with on-off circuit, and the other end of the relative connecting valve circuit end of described thermo-sensitive resistor is connected with power supply.
The two ends of described usb data line are respectively equipped with 4 pin USB males and 5 pin Micro USB males, 4 pin USB male ends of usb data line are connected with PC, 5 pin Micro USB male ends of usb data line are connected with on-off circuit, and the ID pin of described 5 pin Micro USB males is connected with the power pins of 4 pin USB males after connecting a switch.
Described on-off circuit comprises PMOS pipe and the pull down resistor that is connected with PMOS pipe gate pole, described pull down resistor connects the other end ground connection of PMOS pipe gate pole end relatively, the link of described usb data line and on-off circuit is connected between the gate pole and pull down resistor of PMOS pipe, the source electrode of described PMOS pipe is connected with thermo-sensitive resistor, and the drain electrode of PMOS pipe is connected with wireless locating vehicle-mounted terminal.
The present invention compared with prior art has the following advantages and is connected (1) PC of the present invention with beneficial effect and is connected by the usb data line with on-off circuit, PC is the on-off circuit power supply, can control PC and whether on-off circuit switches on by control usb data line, thereby whether on-off circuit is controlled between power supply and the wireless locating vehicle-mounted terminal connects, the present invention is easy to operate, is convenient to realize; The present invention is provided with thermo-sensitive resistor at the connection line of on-off circuit and power supply, variation by monitoring thermo-sensitive resistor temperature, be convenient to monitor the output voltage of power supply, thereby can avoid power supply to continue to cause wireless locating vehicle-mounted terminal to damage to the wireless locating vehicle-mounted terminal high input voltage.
(2) two ends of usb data line of the present invention are respectively equipped with 4 pin USB males and 5 pin Micro USB males, the ID pin of 5 pin Micro USB males is connected with the power pins of 4 pin USB males after connecting a switch, whether the present invention can switch on by the ID pin that the break-make of gauge tap is controlled 5 pin Micro USB males, thereby whether control PC and on-off circuit switch on convenient operation.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited to this.
Embodiment:
As shown in Figure 1, the device of control power switch comprises PC, usb data line, on-off circuit, power supply, thermo-sensitive resistor and wireless locating vehicle-mounted terminal in the wireless locating vehicle-mounted terminal.PC is connected by the usb data line with on-off circuit, wherein, the two ends of usb data line are respectively equipped with 4 pin USB males and 5 pin Micro USB males, 4 pin USB male ends of usb data line are connected with PC, 5 pin Micro USB male ends of usb data line are connected with on-off circuit, and the ID pin of 5 pin Micro USB males is connected with the power pins of 4 pin USB males after connecting a switch.
Thermo-sensitive resistor and wireless locating vehicle-mounted terminal all are connected with on-off circuit, and the other end of the relative connecting valve circuit end of thermo-sensitive resistor is connected with power supply.On-off circuit comprises PMOS pipe and pull down resistor, pull down resistor one end is connected with the gate pole of PMOS pipe, pull down resistor connects the other end ground connection of PMOS pipe gate pole end relatively, the link of usb data line and on-off circuit, the 5 pin Micro USB male ends that are the usb data line are connected between the gate pole and pull down resistor of PMOS pipe, the source electrode of PMOS pipe is connected with thermo-sensitive resistor, and the drain electrode of PMOS pipe is connected with wireless locating vehicle-mounted terminal.
The principle of work of device of control power switch in the wireless locating vehicle-mounted terminal: when the switch that is connected in the power pins of the ID pin of 5 pin Micro USB males and 4 pin USB males is in closure state, ID pin no power, the control signal of the pull down resistor maintained switch circuit of on-off circuit is low level, guarantee the closure of on-off circuit, power supply continues wireless locating vehicle-mounted terminal is powered; When the switch that is connected in the power pins of the ID pin of 5 pin Micro USB males and 4 pin USB males is in open mode, the power pins of the ID pin of 5 pin Micro USB males and 4 pin USB males is connected, the control signal of on-off circuit is converted to high level, guarantee that on-off circuit opens, thereby deenergization is to the power supply of wireless locating vehicle-mounted terminal.
As mentioned above, then can well realize the present invention.
Claims (3)
1. the device of control power switch in the wireless locating vehicle-mounted terminal is characterized in that: comprise PC, usb data line, on-off circuit, thermo-sensitive resistor, power supply and wireless locating vehicle-mounted terminal; Described usb data line one end is connected with PC, and its other end on-off circuit connects, and described thermo-sensitive resistor and wireless locating vehicle-mounted terminal all are connected with on-off circuit, and the other end of the relative connecting valve circuit end of described thermo-sensitive resistor is connected with power supply.
2. control the device of power switch in the wireless locating vehicle-mounted terminal according to claim 1, it is characterized in that: the two ends of described usb data line are respectively equipped with 4 pin USB males and 5 pin Micro USB males, 4 pin USB male ends of usb data line are connected with PC, 5 pin Micro USB male ends of usb data line are connected with on-off circuit, and the ID pin of described 5 pin Micro USB males is connected with the power pins of 4 pin USB males after connecting a switch.
3. control the device of power switch in the wireless locating vehicle-mounted terminal according to claim 1 and 2, it is characterized in that: described on-off circuit comprises PMOS pipe and the pull down resistor that is connected with PMOS pipe gate pole, described pull down resistor connects the other end ground connection of PMOS pipe gate pole end relatively, the link of described usb data line and on-off circuit is connected between the gate pole and pull down resistor of PMOS pipe, the source electrode of described PMOS pipe is connected with thermo-sensitive resistor, and the drain electrode of PMOS pipe is connected with wireless locating vehicle-mounted terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102655899A CN103048932A (en) | 2011-10-15 | 2012-07-30 | Device for controlling power switch in wireless positioning vehicle-mounted terminal |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110311956 | 2011-10-15 | ||
| CN201110311956.X | 2011-10-15 | ||
| CN2012102655899A CN103048932A (en) | 2011-10-15 | 2012-07-30 | Device for controlling power switch in wireless positioning vehicle-mounted terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103048932A true CN103048932A (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102655899A Pending CN103048932A (en) | 2011-10-15 | 2012-07-30 | Device for controlling power switch in wireless positioning vehicle-mounted terminal |
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| Country | Link |
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| CN (1) | CN103048932A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6211581B1 (en) * | 1997-11-28 | 2001-04-03 | Harvard M. Farrant | Power bar with remote control |
| CN2473780Y (en) * | 2000-10-29 | 2002-01-23 | 桂林市中山中学 | Temperature control power plug-in board |
| CN1488530A (en) * | 2003-08-21 | 2004-04-14 | 浩 张 | Vehicle-mounted computer system |
| CN201016859Y (en) * | 2005-10-26 | 2008-02-06 | 中国北方车辆研究所 | Electric vehicle mounted testing device |
| CN202257124U (en) * | 2011-10-15 | 2012-05-30 | 成都锐奕信息技术有限公司 | Device for controlling power switch of wireless positioning vehicle-mounted terminal |
| CN202677108U (en) * | 2012-07-30 | 2013-01-16 | 成都锐奕信息技术有限公司 | Device for controlling power supply switch in wireless positioned vehicle-mounted terminal |
-
2012
- 2012-07-30 CN CN2012102655899A patent/CN103048932A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6211581B1 (en) * | 1997-11-28 | 2001-04-03 | Harvard M. Farrant | Power bar with remote control |
| CN2473780Y (en) * | 2000-10-29 | 2002-01-23 | 桂林市中山中学 | Temperature control power plug-in board |
| CN1488530A (en) * | 2003-08-21 | 2004-04-14 | 浩 张 | Vehicle-mounted computer system |
| CN201016859Y (en) * | 2005-10-26 | 2008-02-06 | 中国北方车辆研究所 | Electric vehicle mounted testing device |
| CN202257124U (en) * | 2011-10-15 | 2012-05-30 | 成都锐奕信息技术有限公司 | Device for controlling power switch of wireless positioning vehicle-mounted terminal |
| CN202677108U (en) * | 2012-07-30 | 2013-01-16 | 成都锐奕信息技术有限公司 | Device for controlling power supply switch in wireless positioned vehicle-mounted terminal |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130417 |