CN203301468U - A wireless hand-held terminal containing a storage function - Google Patents
A wireless hand-held terminal containing a storage function Download PDFInfo
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- CN203301468U CN203301468U CN2013203440593U CN201320344059U CN203301468U CN 203301468 U CN203301468 U CN 203301468U CN 2013203440593 U CN2013203440593 U CN 2013203440593U CN 201320344059 U CN201320344059 U CN 201320344059U CN 203301468 U CN203301468 U CN 203301468U
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- microprocessor
- lcd
- transceiver
- handheld terminal
- transformer
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Abstract
The utility model discloses a wireless hand-held terminal containing a storage function. The wireless hand-held terminal comprises a microprocessor, a RF transceiver, a LCD, a power manager, and a keyboard. The microprocessor is connected with the RF transceiver, the LCD, a power manager, and the keyboard. The RF transceiver is connected with a transformer. The transformer is connected with a filter. A LCD driver is connected between the LCD and the microprocessor. The microprocessor is connected with a USB interface and a memory. With the above structure, the wireless hand-held terminal achieves high performance and relatively low price. In addition, the wireless hand-held terminal also achieves a data storage function so as to facilitate direct use next time.
Description
Technical field
The utility model relates to field of wireless communication, specifically has the wireless handheld terminal of memory function.
Background technology
In the situation that wiring is numerous and diverse, inconvenient or do not allow to connect up, people wish to solve by the wireless telecommunications scheme.Common application has RFID, radio meter register, wireless dining place ordering system, wireless monitor etc.Along with reaching its maturity of technology for radio frequency and Related product and improving constantly of people's living standard and requirement, the informatization of catering industry is in the ascendant.
At present, the kind of wireless handheld terminal has a lot, but there is the problem that price is higher, performance is not enough mostly in they, and general wireless handheld terminal adopts the external connection battery power supply, and the battery altering trouble, be unfavorable for the use of wireless handheld terminal.In addition, some handheld terminal does not possess memory function, can't store data, causes need to again transmitting when need these data next time, and very trouble, easily affect and use.
The utility model content
The utility model provides the wireless handheld terminal with memory function, has solved that wireless handheld terminal price in the past is higher, performance is not enough, can't carry out the problem of data storage.
The utility model is that the technical solution problem is achieved through the following technical solutions: the wireless handheld terminal with memory function, comprise microprocessor, RF transceiver, LCD, power supervisor and keyboard, described microprocessor is connected with RF transceiver, LCD, power supervisor and keyboard respectively, on described RF transceiver, be connected with transformer, on described transformer, be connected with filter, between described LCD and microprocessor, be connected with lcd driver, on described microprocessor, be connected with USB interface and memory.Microprocessor is for controlling various piece, and processing is inputted, output signal; The RF transceiver is for the modulation and demodulation, the emission that realize radiofrequency signal and receive and data are packed and unpacked etc.; LCD is for showing relevant information; Keyboard is for inputting data; Power supervisor is powered to various piece and the switching of external power supply, by USB interface, can realize charging; Memory, for storing related data, is convenient to can directly use next time.
Further, described transformer is balun transformer.Balun transformer is for switching between difference and radiofrequency signal.
Further, described filter is the LC filter.The LC filter is suitable for together with transformer, realizing with antenna.
Further, on described microprocessor, also be connected with jtag interface.Jtag interface is a kind of international standard test protocol, is mainly used in the chip internal test.
Further, on described microprocessor, also be connected with the RS232 interface, between described RS232 interface and microprocessor, be connected with the RS232 interface driver.The RS232 interface is for being connected with computer realization.
Further, described memory is the flash memory.
The utility model compared with prior art has the following advantages and beneficial effect:
(1) the utility model is realized input, the demonstration of signal by keyboard, LCD, under the effect of microprocessor, signal is processed, and through the RF transceiver, signal is launched, but and also received RF signal of RF transceiver, then it is upper after microprocessor processes, to be presented at LCD, total is reasonable, be equipped with again comparatively quick, reliable microprocessor, make overall performance higher.
(2) the utility model, by increasing memory, can be realized the storage to data, and directly use convenient next time, is conducive to improve the exchanges data efficiency of handheld terminal.
(3) the utility model is by connecting the RS232 interface on microprocessor, realized being connected of wireless handheld terminal and computer, facilitated exchanges data, is conducive to expand the application of wireless handheld terminal.
(4) the utility model adopts power supervisor to realize powering and the switching of external power supply, simultaneously, adopts USB interface to charge to equipment, has facilitated the use at any time of wireless handheld terminal.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with embodiment, but execution mode of the present utility model is not limited to this.
Embodiment:
As shown in Figure 1, the present embodiment comprises microprocessor, RF transceiver, LCD, power supervisor and keyboard, described microprocessor is connected with RF transceiver, LCD, power supervisor and keyboard respectively, on described RF transceiver, be connected with transformer, on described transformer, be connected with filter, between described LCD and microprocessor, be connected with lcd driver, on described microprocessor, be connected with USB interface and memory.Microprocessor is for controlling various piece, and processing is inputted, output signal; The RF transceiver is for the modulation and demodulation, the emission that realize radiofrequency signal and receive and data are packed and unpacked etc.; LCD is for showing relevant information; Keyboard is for inputting data; Power supervisor is powered to various piece and the switching of external power supply, by USB interface, can realize charging; Memory, for storing related data, is convenient to can directly use next time.
In order to realize the switching between difference and radiofrequency signal, as preferably, the transformer of the present embodiment is balun transformer.
As preferably, the filter of the present embodiment is the LC filter, and the LC filter is suitable for together with transformer, realizing with antenna.
As preferably, on the microprocessor of the present embodiment, also be connected with jtag interface, jtag interface is a kind of international standard test protocol, is mainly used in the chip internal test.
As preferably, on the microprocessor of the present embodiment, also be connected with the RS232 interface, between RS232 interface and microprocessor, be connected with the RS232 interface driver, the RS232 interface is for being connected with computer realization.
As preferably, the memory of the present embodiment is the flash memory.
Operation principle of the present utility model: signal is inputted by keyboard, after microprocessor processes, by the RF transceiver, transmit a signal to base station, in addition, the RF transceiver also can receive the signal of base station, and it is upper after microprocessor processes, to be presented at LCD, and related data can be stored on memory, and wireless handheld terminal is by RS232 interface and computer realization exchanges data.
The model of above-mentioned part of devices is selected as follows:
Microprocessor: C8051F340
RF transceiver: BT1074B
Power supervisor: LM2705
Memory: LPC2292
RS232 interface driver: MAX3232
The utility model is illustrated by above-described embodiment, but should be understood that, above-described embodiment is the purpose for giving an example and illustrating just, but not is intended to the utility model is limited in described scope of embodiments.In addition; it will be understood by those skilled in the art that; the utility model is not limited to above-described embodiment, according to instruction of the present utility model, can also make more kinds of variants and modifications, and these variants and modifications all drop in the utility model scope required for protection.
Claims (6)
1. the wireless handheld terminal that has memory function, it is characterized in that: comprise microprocessor, RF transceiver, LCD, power supervisor and keyboard, described microprocessor is connected with RF transceiver, LCD, power supervisor and keyboard respectively, on described RF transceiver, be connected with transformer, on described transformer, be connected with filter, between described LCD and microprocessor, be connected with lcd driver, on described microprocessor, be connected with USB interface and memory.
2. the wireless handheld terminal with memory function according to claim 1, it is characterized in that: described transformer is balun transformer.
3. the wireless handheld terminal with memory function according to claim 1, it is characterized in that: described filter is the LC filter.
4. the wireless handheld terminal with memory function according to claim 1, is characterized in that: on described microprocessor, also be connected with jtag interface.
5. the wireless handheld terminal with memory function according to claim 1, is characterized in that: on described microprocessor, also be connected with the RS232 interface, between described RS232 interface and microprocessor, be connected with the RS232 interface driver.
6. the wireless handheld terminal with memory function according to claim 1, it is characterized in that: described memory is the flash memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203440593U CN203301468U (en) | 2013-06-17 | 2013-06-17 | A wireless hand-held terminal containing a storage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203440593U CN203301468U (en) | 2013-06-17 | 2013-06-17 | A wireless hand-held terminal containing a storage function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301468U true CN203301468U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203440593U Expired - Fee Related CN203301468U (en) | 2013-06-17 | 2013-06-17 | A wireless hand-held terminal containing a storage function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887458A (en) * | 2019-12-04 | 2020-03-17 | 成濮生 | Forestry is with portable measurement system |
-
2013
- 2013-06-17 CN CN2013203440593U patent/CN203301468U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887458A (en) * | 2019-12-04 | 2020-03-17 | 成濮生 | Forestry is with portable measurement system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20140617 |
|
| EXPY | Termination of patent right or utility model |