CN202841093U - Base pin circuit for network connection status - Google Patents
Base pin circuit for network connection status Download PDFInfo
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- CN202841093U CN202841093U CN 201220524361 CN201220524361U CN202841093U CN 202841093 U CN202841093 U CN 202841093U CN 201220524361 CN201220524361 CN 201220524361 CN 201220524361 U CN201220524361 U CN 201220524361U CN 202841093 U CN202841093 U CN 202841093U
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Abstract
The utility model discloses a base pin circuit for network connection status. The base pin circuit for the network connection status comprises a NPN transistor, a light emitting diode, a chip EM310GSM, a data terminal device (DTE), a backup lithium battery voltage of battery (VBAT) and a resistance R and a resistance R1. The NPN transistor is divided into three electrodes which comprise a base electrode B, a collector electrode C and an emitting electrode E, the base electrode B is connected with the resistance R, the collector electrode C is connected with the light emitting diode and the emitting electrode E is in ground connection. The resistance R1 connected with the light emitting diode and the backup lithium battery VBAT at the same time, and the chip EM310GSM is connected with the resistance R and the corresponding interface of DTE. Through the mentioned base pin circuit for the network connection status, current status of the network can be known timely, and observation is more convenient.
Description
Technical field
The utility model relates to pin circuit, is specifically related to the network connection state pin circuit.
Background technology
The system that the GPS global positioning system can be located in real time in the world, be navigated can provide the functions such as vehicle location, antitheft, anti-misfortune, travel route monitoring and calling commander.And the realization of these functions is to realize by at the circuit unit plate ten hundreds of circuit units being set, this just need to improve the circuit level of GPS global positioning system as much as possible, so it is well-designed that each on-chip pin needs to carry out, some function pin wherein also will be forced to give up, but in order to realize designing requirement, the designer has to find out other the next equivalent pin that is forced to give up of method, thereby will be so that the circuit design complicated be realized speech business, short message service, global location and other supplementary service.Realize that these functions need the circuit of GPS global positioning system constantly to switch, realize different network states, corresponding circuit but is not set in the existing technology realizes the simple different network state of judging, this is unfavorable for observing the current state with timely awareness network with regard to causing great inconvenience for actual the use.
The utility model content
The utility model has overcome the deficiencies in the prior art, and the network connection state pin circuit is provided, and has solved in the prior art the in time current state of awareness network, is unfavorable for the defective of observing.
For solving above-mentioned technical problem, the utility model is by the following technical solutions: a kind of network connection state pin circuit, comprise the NPN triode, light-emitting diode, chip EM310 GSM, data terminal equipment DTE, reserve lithium battery VBAT and resistance R and resistance R 1, described NPN triode is divided into three utmost points, be respectively base stage B, collector electrode C and emitter E, base stage B is connected with resistance R, collector electrode C is connected with light-emitting diode, emitter E ground connection, described resistance R 1 is connected in light-emitting diode and reserve lithium battery VBAT simultaneously, and described chip EM310 GSM and resistance R are connected corresponding ports and are connected with data terminal equipment DTE.
Above-mentioned resistance R is connected with LPG pin on the chip EM310 GSM.
The data of the corresponding ports on the module data receiving port/TXD on the above-mentioned chip EM310 GSM, request transmit port/RTS and the data terminal ready port/DTR receive data terminal equipment DTE.
Data sending terminal mouth/RXD, clear to send port/CTS on the above-mentioned chip EM310 GSM, the ready port/DSR of data equipment, carrier detect port/DCD and module ring indication port/RING send data to the corresponding ports of data terminal equipment DTE.
When module started, module started the output high level.When module was in deep sleep, the LPG pin was with regard to output low level.When not inserting SIM card, for the input PIN code or just when the search network, the LPG pin will be made corresponding response, and the cycle is 1s, and then output high level 0.1s is reacted on the light-emitting diode.When being registered to network, the IDLE state, the LPG pin cycle becomes 3s, high level output 0.1s.In the GPRS transfer of data, the cycle becomes 0.125s, output high level 0.1s.When in calling, the LPG pin continues high level.
Compared with prior art, the beneficial effects of the utility model are: by said structure, when network state not simultaneously, different high-low level states will appear in the LPG pin, then passes to light-emitting diode, by the variation of light source, significantly find out, can realize observing at any time network state.
Description of drawings
Fig. 1 is circuit connection diagram of the present utility model.
Embodiment
Be further elaborated below in conjunction with 1 pair of the utility model of accompanying drawing, embodiment of the present utility model is not limited to this.
Embodiment:
The utility model comprises the NPN triode, light-emitting diode, chip EM310 GSM, data terminal equipment DTE, reserve lithium battery VBAT and resistance R and resistance R 1, described NPN triode is divided into three utmost points, be respectively base stage B, collector electrode C and emitter E, base stage B is connected with resistance R, collector electrode C is connected with light-emitting diode, emitter E ground connection, described resistance R 1 is connected in light-emitting diode and reserve lithium battery VBAT simultaneously, described chip EM310 GSM and resistance R are connected corresponding ports and are connected with data terminal equipment DTE, resistance R is connected with LPG pin on the chip EM310 GSM.The data of the corresponding ports on the module data receiving port/TXD on the chip EM310 GSM of present embodiment, request transmit port/RTS and the data terminal ready port/DTR receive data terminal equipment DTE; Other port data transmit port/RXD, clear to send port/CTS on the chip EM310 GSM, the ready port/DSR of data equipment, carrier detect port/DCD and module ring indication port/RING then send data to the corresponding ports of data terminal equipment DTE.
During application, only need the corresponding ports LPG pin of this circuit is connected on the chip EM310 GSM, resistance R 1 is connected on the reserve lithium battery VBAT.Observe the variations in light situation of light-emitting diode, just know corresponding network state.
Just can realize this utility model as mentioned above.
Claims (4)
1. network connection state pin circuit, it is characterized in that: comprise the NPN triode, light-emitting diode, chip EM310 GSM, data terminal equipment DTE, reserve lithium battery VBAT and resistance R and resistance R 1, described NPN triode is divided into three utmost points, be respectively base stage B, collector electrode C and emitter E, base stage B is connected with resistance R, collector electrode C is connected with light-emitting diode, emitter E ground connection, described resistance R 1 is connected in light-emitting diode and reserve lithium battery VBAT simultaneously, and described chip EM310 GSM and resistance R are connected corresponding ports and are connected with data terminal equipment DTE.
2. network connection state pin circuit according to claim 1 is characterized in that: described resistance R is connected with LPG pin on the chip EM310 GSM.
3. network connection state pin circuit according to claim 1 is characterized in that: the data of the corresponding ports on the module data receiving port/TXD on the described chip EM310 GSM, request transmit port/RTS and the data terminal ready port/DTR receive data terminal equipment DTE.
4. it is characterized in that according to claim 1 or 3 described network connection state pin circuits: data sending terminal mouth/RXD, the clear to send port/CTS on the described chip EM310 GSM, the ready port/DSR of data equipment, carrier detect port/DCD and module ring indication port/RING send data to the corresponding ports of data terminal equipment DTE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524361 CN202841093U (en) | 2012-10-15 | 2012-10-15 | Base pin circuit for network connection status |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524361 CN202841093U (en) | 2012-10-15 | 2012-10-15 | Base pin circuit for network connection status |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202841093U true CN202841093U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220524361 Expired - Fee Related CN202841093U (en) | 2012-10-15 | 2012-10-15 | Base pin circuit for network connection status |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202841093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731131A (en) * | 2012-10-15 | 2014-04-16 | 成都众易通科技有限公司 | Network connection status pin circuit |
-
2012
- 2012-10-15 CN CN 201220524361 patent/CN202841093U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731131A (en) * | 2012-10-15 | 2014-04-16 | 成都众易通科技有限公司 | Network connection status pin circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20131015 |