CN203894752U - Interface conversion device and update system for wireless communication module - Google Patents
Interface conversion device and update system for wireless communication module Download PDFInfo
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- CN203894752U CN203894752U CN201420263521.1U CN201420263521U CN203894752U CN 203894752 U CN203894752 U CN 203894752U CN 201420263521 U CN201420263521 U CN 201420263521U CN 203894752 U CN203894752 U CN 203894752U
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- 238000004891 communication Methods 0.000 title claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
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Abstract
The utility model provides an interface conversion device and an update system for a wireless communication module. The interface conversion device comprises an interface converter, an output power cord and two diodes; the interface converter comprises a USB (universal serial bus) interface, and the USB interface comprises a power cord used for being connected to a power pin of front-end equipment and is used for transceiving USB data and supplying power for the interface converter; the output power cord is used for connecting the USB interface with the power pin of the wireless communication module, and the diodes are in series connection to the output power cord. By the arrangement, dependency of the wireless communication module on additional external power supply during operations of updating as well as debugging and monitoring serial ports and the like is removed, and flexibility and convenience of the wireless communication module on those aspects are greatly improved.
Description
Technical field
The utility model relates to interface switching device, particularly a kind of interface switching device for wireless communication module and renewal system.
Background technology
Existing wireless communication module is at needs refresh routine or carry out some whens test, being all directly by USB (USB is USB (universal serial bus)), to turn CMOS (CMOS is complementary metal oxide semiconductor (CMOS)) converter, is USB level by module CM OS level conversion.Like this, such as when the refresh routine, except by transmission pin with receive pin is mapped, also need by other external power source to wireless communication module power supply, with start, just to complete renewal.Such renewal process substantially as shown in Figure 1, upgrade that required information is provided by computing machine and (RS232 is one of communication interface on personal computer by usb data being converted to RS232 information, (the Electronic Industries Association of Shi You Electronic Industries Association, EIA) the asynchronous transmission standard interface of formulating), then by RS232 information be converted to the receivable CMOS level signal of wireless communication module.Or as shown in Figure 2, usb data is converted to CMOS level signal and offers wireless communication module.Yet no matter be which kind of mode, the power supply of wireless communication module all must adopt extra external power source (being the power-supply unit in Fig. 1,2) to provide.
Therefore, at power supply environment, in situation, be very difficult to realize not too easily.Such as in ammeter industry, security protection industry in the renewal of wireless communication module or test, often need work on the spot in the wild, be at this moment just difficult to find suitable power supply to wireless communication module power supply.
Utility model content
The technical problems to be solved in the utility model is in order to overcome in prior art when wireless communication module need to upgrade or test, must adopt extra external power source to wireless communication module power supply with start, thereby the environment that cannot be applicable to power exists the defect under inconvenient environment, provide a kind of interface switching device for wireless communication module and renewal system.
The utility model is to solve above-mentioned technical matters by following technical proposals:
The utility model provides a kind of interface switching device for wireless communication module, its feature is, comprise an interface convertor, an out-put supply line and two diodes, this interface convertor comprises a USB interface, this USB interface comprises a power lead, this power lead is for being connected to the power pins of a front-end equipment, this USB interface is used for receiving and dispatching usb data and is this interface convertor power supply, this out-put supply line is for connecting the power pins of this USB interface and this wireless communication module, and these two diodes are series on this out-put supply line.
Wherein, this USB interface is used to this interface convertor power supply should be understood to, this USB interface utilizes this power lead to be connected to the power pins of this front-end equipment (such as a computing machine), thereby make this USB interface be exported certain voltage, thereby this USB interface can be interpreted as to interface power supply to a certain extent.This USB interface is this interface convertor power supply, is each element power supply in this interface convertor.
This out-put supply line connects the power pins of this USB interface and this wireless communication module, be exactly in fact for to this wireless communication module power supply, these two diodes are series on this out-put supply line, to reduce the voltage of output, to be adapted to the operating voltage of this wireless communication module.
It will be appreciated by those skilled in the art that this out-put supply line can be in fact two-route wire, so these two diodes are series on this out-put supply line, can be understood as is the diode of respectively connecting on two-way out-put supply line, to reduce the voltage of output.
Preferably, this interface convertor also comprises a CMOS electric level interface and a signal converter, this CMOS electric level interface is used for receiving and dispatching CMOS level information, this signal converter is for carrying out the bi-directional conversion of CMOS level information and usb data, and this USB interface is used to this CMOS electric level interface and the power supply of this signal converter.
Preferably, this interface convertor adopts the CMOS-USB interface convertor of PL2303 model.
Preferably, on this out-put supply line, be also provided with an on-off switch, to control easily the power-on and power-off of this wireless communication module.
Preferably, the output voltage of this USB interface is 5 volts.
The utility model also provides a kind of renewal system of wireless communication module, its feature is, interface switching device as above, a wireless communication module and a front-end equipment have been comprised, this wireless communication module is connected by this interface convertor with this front-end equipment, this power lead is connected to the power pins of this front-end equipment, and this out-put supply line connects the power pins of this USB interface and this wireless communication module.
Preferably, this front-end equipment is a personal computer.
Positive progressive effect of the present utility model is: eliminated wireless communication module upgrade and during the operation such as debugging monitoring serial port for the dependence of extra external power source, greatly improved dirigibility and the convenience of wireless communication module in these uses.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that in prior art, a kind of signal of wireless communication module when upgrading transmits and power.
Fig. 2 is the schematic diagram that in prior art, the another kind of signal of wireless communication module when upgrading transmits and power.
Fig. 3 is the schematic diagram of the interface switching device of the utility model embodiment 1.
Embodiment
With preferred embodiment of the present utility model by reference to the accompanying drawings, carry out the clearer the utility model that intactly illustrates below.
Embodiment 1
Shown in figure 3, the interface switching device of the present embodiment is for wireless communication module 5, it comprises that (out-put supply line represents with the connecting line of USB interface in Fig. 3 and wireless communication module for an interface convertor, an out-put supply line and two diodes, and therefore do not limit out-put supply Xian Wei mono-road electric wire, diode is not shown in the drawings), this interface convertor comprises a usb 1, a CMOS electric level interface 3 and a signal converter 2.This USB interface comprises a power lead (not shown), this power lead is for being connected to the power pins of computing machine 4, this USB interface, for receiving and dispatching usb data and powering for each element of this interface convertor, comprises this CMOS electric level interface and this signal converter.The voltage of this USB interface output is 5 volts.
This out-put supply line is for connecting the power pins of this usb 1 and this wireless communication module 5, and these two diodes are series on this out-put supply line, on this out-put supply line, are also provided with an on-off switch.Wherein, this CMOS electric level interface 3 is for receiving and dispatching CMOS level information, and this signal converter 2 is for carrying out the bi-directional conversion of CMOS level information and usb data.It should be noted in the discussion above that four-headed arrow in Fig. 3 is respectively used to represent data transmit-receive between computing machine and USB interface and the data transmit-receive between wireless communication module and CMOS electric level interface.
This interface convertor in the present embodiment adopts the CMOS-USB interface convertor of PL2303 model.
Embodiment 2
The renewal system of the present embodiment, the interface switching device and a wireless communication module and the computing machine (as front-end equipment) that have comprised embodiment 1, this wireless communication module is connected by this interface convertor with this computing machine, this power lead is connected to the power pins of this front-end equipment, and this out-put supply line connects the power pins of this USB interface and this wireless communication module.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection domain of the present utility model.
Claims (7)
1. the interface switching device for wireless communication module, it is characterized in that, comprise an interface convertor, an out-put supply line and two diodes, this interface convertor comprises a USB interface, this USB interface comprises a power lead, this power lead is for being connected to the power pins of a front-end equipment, this USB interface is used for receiving and dispatching usb data and is this interface convertor power supply, this out-put supply line is for connecting the power pins of this USB interface and this wireless communication module, and these two diodes are series on this out-put supply line.
2. interface switching device as claimed in claim 1, it is characterized in that, this interface convertor also comprises a CMOS electric level interface and a signal converter, this CMOS electric level interface is used for receiving and dispatching CMOS level information, this signal converter is for carrying out the bi-directional conversion of CMOS level information and usb data, and this USB interface is used to this CMOS electric level interface and the power supply of this signal converter.
3. interface switching device as claimed in claim 1, is characterized in that, this interface convertor adopts the CMOS-USB interface convertor of PL2303 model.
4. interface switching device as claimed in claim 1, is characterized in that, on this out-put supply line, is also provided with an on-off switch.
5. interface switching device as claimed in claim 1, is characterized in that, the output voltage of this USB interface is 5 volts.
6. the renewal system of a wireless communication module, it is characterized in that, interface switching device, a wireless communication module and a front-end equipment as described in any one in claim 1-5 have been comprised, this wireless communication module is connected by this interface convertor with this front-end equipment, this power lead is connected to the power pins of this front-end equipment, and this out-put supply line connects the power pins of this USB interface and this wireless communication module.
7. renewal system as claimed in claim 6, is characterized in that, this front-end equipment is a personal computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263521.1U CN203894752U (en) | 2014-05-20 | 2014-05-20 | Interface conversion device and update system for wireless communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263521.1U CN203894752U (en) | 2014-05-20 | 2014-05-20 | Interface conversion device and update system for wireless communication module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203894752U true CN203894752U (en) | 2014-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420263521.1U Expired - Lifetime CN203894752U (en) | 2014-05-20 | 2014-05-20 | Interface conversion device and update system for wireless communication module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203894752U (en) |
-
2014
- 2014-05-20 CN CN201420263521.1U patent/CN203894752U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 200233 room 701, No. 1801 B, Hongmei Road, Xuhui District, Shanghai Patentee after: QUECTEL WIRELESS SOLUTIONS Co.,Ltd. Address before: 200233 Shanghai city Xuhui District Tianzhou Road No. 99 building 13 Room 501 Patentee before: QUECTEL WIRELESS SOLUTIONS CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |