CN103338055A - Wireless handheld terminal with higher performance - Google Patents
Wireless handheld terminal with higher performance Download PDFInfo
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- CN103338055A CN103338055A CN2013102399064A CN201310239906A CN103338055A CN 103338055 A CN103338055 A CN 103338055A CN 2013102399064 A CN2013102399064 A CN 2013102399064A CN 201310239906 A CN201310239906 A CN 201310239906A CN 103338055 A CN103338055 A CN 103338055A
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- microprocessor
- lcd
- handheld terminal
- wireless handheld
- transceiver
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Abstract
The invention discloses a wireless handheld terminal with higher performance. The wireless handheld terminal comprises a microprocessor, an RF (Radio Frequency) transceiver, an LCD (Liquid Crystal Display), a power manager and a keyboard, wherein the microprocessor is respectively connected to the RF transceiver, the LCD, the power manager and the keyboard; the RF transceiver is connected with a transformer connected to a wave filter; an LCD driver is connected between the LCD and the microprocessor further connected to a USB (Universal Serial Bus) interface. In virtue of the structure, the wireless handheld terminal has higher performance and relatively lower price, and does not affect the use of terminal equipment.
Description
Technical field
The present invention relates to field of wireless communication, specifically is the higher wireless handheld terminal of a kind of performance.
Background technology
Under or the situation that do not allow to connect up numerous and diverse, inconvenient in wiring, people wish and can 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 is unfavorable for the use of wireless handheld terminal.
Summary of the invention
The invention provides the higher wireless handheld terminal of a kind of performance, solved the problem that the wireless handheld terminal price is higher, performance is not enough in the past.
The present invention is achieved through the following technical solutions for the technical solution problem: the wireless handheld terminal that a kind of performance is higher, comprise microprocessor, RF transceiver, LCD, power supervisor and keyboard, described microprocessor is connected with RF transceiver, LCD, power supervisor and keyboard respectively, be connected with transformer on the described RF transceiver, be connected with filter on the described transformer, be connected with lcd driver between described LCD and the microprocessor, also be connected with USB interface on the described microprocessor.Microprocessor is used for the control various piece, and handles input, output signal; The modulation and demodulation, emission that the RF transceiver be used for to be realized radiofrequency signal and reception and data are packed and unpack etc.; LCD is used for showing relevant information; Keyboard is used for the input data; Power supervisor is powered to various piece and the switching of external power supply, can realize charging by USB interface.
Further, described transformer is balun transformer.Balun transformer is used for switching between difference and radiofrequency signal.
Further, described filter is the LC filter.The LC filter is used for realizing with antenna suitable with transformer.
Further, also be connected with jtag interface on the described microprocessor.Jtag interface is a kind of international standard test protocol, is mainly used in the chip internal test.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) the present invention realizes input, the demonstration of signal by keyboard, LCD, under the effect of microprocessor, signal is handled, and through the RF transceiver signal is launched, but and also received RF signal of RF transceiver, again through being presented at after the microprocessor processes on the LCD, total is reasonable, be equipped with comparatively quick, reliable microprocessor again, make overall performance higher.
(2) the present invention adopts power supervisor to realize powering and the switching of external power supply, simultaneously, adopts USB interface to come equipment is charged, and has made things convenient for the use at any time of wireless handheld terminal.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, but embodiments of the present invention are not limited thereto.
Embodiment:
As shown in Figure 1, present embodiment comprises microprocessor, RF transceiver, LCD, power supervisor and keyboard, microprocessor is connected with RF transceiver, LCD, power supervisor and keyboard respectively, be connected with transformer on the RF transceiver, be connected with filter on the transformer, be connected with lcd driver between LCD and the microprocessor, also be connected with USB interface on the microprocessor, microprocessor is used for the control various piece, and handles input, output signal; The modulation and demodulation, emission that the RF transceiver be used for to be realized radiofrequency signal and reception and data are packed and unpack etc.; LCD is used for showing relevant information; Keyboard is used for the input data; Power supervisor is powered to various piece and the switching of external power supply, can realize charging by USB interface.
As preferably, the transformer of present embodiment is balun transformer, is used for switching between difference and radiofrequency signal.
As preferably, the filter of present embodiment is the LC filter, is used for realizing with antenna suitable with transformer.
As preferably, also be connected with jtag interface on the microprocessor of present embodiment, be used for the chip internal test.
Operation principle of the present invention: by keyboard signal is imported, after microprocessor processes, transmitted a signal to the base station by the RF transceiver, in addition, the RF transceiver also can receive signal of base station, and through being presented on the LCD after the microprocessor processes.
The model of above-mentioned part of devices is selected as follows:
Microprocessor: C8051F340
RF transceiver: BT1074B
Power supervisor: LM2704
The present invention is illustrated by above-described embodiment, but should be understood that, above-described embodiment just is used for for example and illustrative purposes, but not is intended to the present invention is limited in the described scope of embodiments.In addition, it will be appreciated by persons skilled in the art that the present invention is not limited to above-described embodiment, can also make more kinds of variants and modifications according to instruction of the present invention, these variants and modifications all drop in the present invention's scope required for protection.
Claims (4)
1. wireless handheld terminal that performance is higher, 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, be connected with transformer on the described RF transceiver, be connected with filter on the described transformer, be connected with lcd driver between described LCD and the microprocessor, also be connected with USB interface on the described microprocessor.
2. the higher wireless handheld terminal of a kind of performance according to claim 1, it is characterized in that: described transformer is balun transformer.
3. the higher wireless handheld terminal of a kind of performance according to claim 1, it is characterized in that: described filter is the LC filter.
4. the higher wireless handheld terminal of a kind of performance according to claim 1 is characterized in that: also be connected with jtag interface on the described microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102399064A CN103338055A (en) | 2013-06-17 | 2013-06-17 | Wireless handheld terminal with higher performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102399064A CN103338055A (en) | 2013-06-17 | 2013-06-17 | Wireless handheld terminal with higher performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103338055A true CN103338055A (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102399064A Pending CN103338055A (en) | 2013-06-17 | 2013-06-17 | Wireless handheld terminal with higher performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103338055A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359847Y (en) * | 1998-07-24 | 2000-01-19 | 黄乐讯 | Honeycomb movable hand telephone without radiation |
| CN201303367Y (en) * | 2008-12-05 | 2009-09-02 | 深圳市高新奇科技股份有限公司 | Bluetooth anti-loss mobile phone |
-
2013
- 2013-06-17 CN CN2013102399064A patent/CN103338055A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359847Y (en) * | 1998-07-24 | 2000-01-19 | 黄乐讯 | Honeycomb movable hand telephone without radiation |
| CN201303367Y (en) * | 2008-12-05 | 2009-09-02 | 深圳市高新奇科技股份有限公司 | Bluetooth anti-loss mobile phone |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131002 |