CN201774619U - Handheld wireless indoor terminal - Google Patents
Handheld wireless indoor terminal Download PDFInfo
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- CN201774619U CN201774619U CN2010201085856U CN201020108585U CN201774619U CN 201774619 U CN201774619 U CN 201774619U CN 2010201085856 U CN2010201085856 U CN 2010201085856U CN 201020108585 U CN201020108585 U CN 201020108585U CN 201774619 U CN201774619 U CN 201774619U
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- indoor terminal
- wireless indoor
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Abstract
The utility model provides a handheld wireless indoor terminal. The terminal comprises a touch screen control circuit, a wireless fidelity (WIFI) circuit, a handwritten input circuit, an audio encoding and decoding circuit, a reset circuit, a power circuit and a complex programmable logic device (CPLD) circuit which are connected with an HI3510 circuit respectively, wherein the CPLD circuit is connected with a liquid crystal screen interface circuit; the WIFI circuit is used for wireless access; the handheld wireless indoor terminal also expands a multimedia function; a RK2706 circuit is connected with a universal serial bus (USB) interface circuit, a power circuit, a power amplifier and a loudspeaker which communicate with a personnel computer (PC), and is connected to the CPLD circuit; and the CPLD circuit is used for switching video signals of the HI3510 circuit and the RK2706 circuit to the liquid crystal screen interface circuit. The terminal has all intelligent household functions and infuses network application and multimedia entertainment functions, so that multiple functions of a machine are realized and the cost performance of a product is improved.
Description
[technical field]
The utility model relates to security protection intercommunication field, particularly a kind of wireless indoor terminal of visible dialogue system.
[background technology]
Existing visible dialogue system product is progressively to seriation and development in pluralism, and the consideration that usually needs of existing catv terminal is connected up and various wired connection, can not carry and use inconvenience.Therefore the wireless indoor terminal occurs on the market and satisfied this requirement, realized the function of original wired indoor terminal.But wireless indoor terminal in the market mostly is the access way with wired TCP/IP to be changed wireless WI-FI into and inserts, its function ratio is more single, the wireless indoor terminal can only be as the communication effect of visible dialogue system, if any warning, phone, tame electric control, the function of Smart Home such as machine intercommunication in front of the door, the utilance of wireless indoor terminal is lower.
[utility model content]
The technical problems to be solved in the utility model is to overcome existing technical deficiency, provides a kind of and has both possessed outside all Smart Home functions, has merged the hand-hold wireless indoor terminal of network application and multimedia recreation function again.
The utility model is achieved in that a kind of hand-hold wireless indoor terminal, comprise the touch screen control circuit that is connected with the HI3510 circuit respectively, the WIFI circuit, hand-written input circuit, the audio coding decoding circuit, reset circuit, power circuit, the CPLD circuit, described CPLD circuit also connects a LCD Interface circuit, the WIFI circuit is used for wireless access, it is characterized in that: described hand-hold wireless indoor terminal also comprises a RK2706 circuit, described RK2706 circuit is connected with the HI3510 circuit, be used to expand multimedia function, described RK2706 circuit also is connected with and is used for and PC communication usb circuit, power circuit, power amplifier and loudspeaker, and the RK2706 circuit also is connected to the CPLD circuit, and the CPLD circuit is used to switch both vision signals of HI3510 circuit and RK2706 circuit to the LCD Interface circuit.
Described RK2706 circuit also is connected with the SD card interface circuit, is used for the expansion of SD card, conveniently stores various multimedia documents.
Described HI3510 circuit also is connected with battery charger, is used for the charging of battery.
Described audio coding decoding circuit also is connected with miaow head and power amplifier LM4871, and power amplifier LM4871 is connected with loudspeaker.
Described power circuit mainly is made up of two MP1423 chips, and one provides 3.3V to HI3510 and peripheral circuit power supply; Another provides 5V to RK2706 and peripheral circuit power supply.
Described usb circuit is used for the communication with PC; The LCD Interface circuit is used for being connected with liquid crystal display screen; Reset circuit is used to provide reset signal; Touch screen control circuit is used for touching control; The LM4871 circuit is used for audio power and amplifies.。
Hand-held indoor terminal described in the utility model has been realized the system integration of dissimilar chips, success is applied to the video intercom field with multimedia function, and this product more lays particular emphasis on the entertainment orientation of household internal, when being provided, the building talkback function provides the multimedia recreation function for the user again, realize a tractor serves several purposes, promoted the product price ratio.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the hardware principle block diagram of hand-hold wireless indoor terminal of the present utility model.
Fig. 2 is the connection layout of the HI3510 circuit of hand-hold wireless indoor terminal of the present utility model.
Fig. 3 is the connection layout of the WIFI circuit of hand-hold wireless indoor terminal of the present utility model.
Fig. 4 is the connection layout of the reset circuit of hand-hold wireless indoor terminal of the present utility model.
Fig. 5 is the connection layout of the usb circuit of hand-hold wireless indoor terminal of the present utility model.
Fig. 6 is the connection layout of the RK2706 circuit of hand-hold wireless indoor terminal of the present utility model.
Fig. 7 is the connection layout of the SD card interface circuit of hand-hold wireless indoor terminal of the present utility model.
Fig. 8 is the connection layout of the LCD Interface circuit of hand-hold wireless indoor terminal of the present utility model.
Fig. 9 is the connection layout of the battery charger of hand-hold wireless indoor terminal of the present utility model.
Figure 10 is the connection layout of the power circuit of hand-hold wireless indoor terminal of the present utility model.
Figure 11 is the connection layout of the hand-written input circuit of hand-hold wireless indoor terminal of the present utility model.
Figure 12 is the connection layout of the audio coding decoding circuit of hand-hold wireless indoor terminal of the present utility model.
Figure 13 is the connection layout of the touch screen control circuit of hand-hold wireless indoor terminal of the present utility model.
Figure 14 is the connection layout of the LM4871 circuit of hand-hold wireless indoor terminal of the present utility model.
[embodiment]
Seeing also Fig. 1, is the hardware principle block diagram of hand-hold wireless indoor terminal of the present utility model.Described Hi3510 circuit, WIFI circuit, reset circuit, RK2706 circuit, usb circuit, SD card interface circuit, LCD Interface circuit), battery charger), power circuit), hand-written input circuit, audio coding decoding circuit, touch screen control circuit, LM4871 circuit, CPLD circuit.The feature of each part and act on as follows: the WIFI circuit is used for wireless access, the RK2706 circuit is used to expand multimedia function, usb circuit is used for the communication with PC, the SD card interface circuit is used for the expansion of SD card, the LCD Interface circuit is used for being connected with liquid crystal display screen, reset circuit is used to provide reset signal, battery charger is used for battery charge, touch screen control circuit is used for touching control, the LM4871 circuit is used for audio power and amplifies, the CPLD circuit is mainly used in and switches HI3510 and RK2706 vision signal to the LCD Interface circuit, and the described CPLD circuit employing Lattice LC4128V of company switches vision signal.The interconnected relationship of each part is as follows: the WIFI circuit is connected with the Hi3510 circuit, and usb circuit, SD card interface circuit are connected with the RK2706 circuit; Hand-written input circuit is connected with the Hi3510 circuit.
See also Fig. 2, it is the connection layout of the Hi3510 circuit of hand-hold wireless indoor terminal of the present utility model, Fig. 3 is the connection layout of WIFI circuit, and wherein J803 is used to connect built-in aerial, and SPI_CLK, SPI_SDI, SPI_CSn, SPI_SDO are used for the communication with HI3510.
Fig. 4 and Fig. 5 are the reset circuit of hand-hold wireless indoor terminal of the present utility model and the connection layout of usb circuit, and reset circuit and usb circuit all adopt general circuit to constitute.
Fig. 6 is the connection layout of the RK2706 circuit of hand-hold wireless indoor terminal of the present utility model.The RK2706 circuit has the ARM+DSP dual core processor; Built-in 8-bits hardware ECC algorithm is supported complete series NAND FLASH; Built-in TFT controller supports 260,000 looks to show, supports various LCDs; The USB high-speed transfer, the highest writing rate can reach 4MB; Built-in high-performance audio converter (CODEC) is exported perfect tonequality; Support the expansion of SD/SDHC/MMC card.
Fig. 7 is the connection layout of the SD card interface circuit of hand-hold wireless indoor terminal of the present utility model.In the SD card interface circuit, SD_CKE is used to detect the SD card and inserts.SPI_MOSI, SPI_CLK, SPI_MISO are used for the communication with RK2706.
Fig. 8 is the connection layout of the LCD Interface circuit of hand-hold wireless indoor terminal of the present utility model.This LCD Interface circuit (106) 7inch_HSYNC provide line synchronizing signal, and 7inch_VSYNC provides field sync signal, and 7inch_DEN shows enable signal, and each of RGB three roadbed chrominance signals all uses an independent data wire to transmit.
Fig. 9 is the connection layout of the battery charger of hand-hold wireless indoor terminal of the present utility model.Battery charger uses ML8115A lithium electricity management of charging and discharging IC.Charging process is divided into 3 stages: 1. preliminary filling process 2. constant current processes 3. constant voltage process.Under any state as excess temperature, overcurrent, short circuit, when electric core damage or the like state took place, ML8115A can stop charging.
Figure 10 is the connection layout of the power circuit of hand-hold wireless indoor terminal of the present utility model.This power circuit mainly is made up of two MP1423 chips.One provides 3.3V to HI3510 and peripheral circuit power supply.One provides 5V to RK2706 and peripheral circuit power supply.
Figure 11 is the connection layout of the hand-written input circuit of hand-hold wireless indoor terminal of the present utility model.Adopt the grand hand-written IC of justice.Wherein XP, YP, XN, YN are used to connect touch-screen, and URXD_HandWrite, UTXD_HandWrite are used for the communication with HI3510.
Figure 12 is the connection layout of the audio coding decoding circuit of hand-hold wireless indoor terminal of the present utility model.The audio coding decoding circuit comprises audio codec TLV320AIC23BPW.
Figure 13 is the connection layout of the touch screen control circuit of hand-hold wireless indoor terminal of the present utility model.It is a kind of four-wire system touch screen controller that BB company produces that touch screen control circuit adopts ADS7846.Can be widely used in the resistive touch screen system.The core of ADS7846 is 12 successive approximation type a/d converters that have sampling and keep function, and its switching rate can reach 125kHz. and resolution is programmed for 8 or 12.In addition, ADS7846 also is integrated with the touch recognition circuit, and when having detected touch, this circuit can be exported a low level signal at PENIRQ (pen interrupts) pin, and proposes the interrupt requests of metering contact coordinate to microcontroller with this signal.This chip adopts single power supply, and operating voltage is 2.2-5.25V, and the reference voltage of inner carrying+2.5V.
Figure 14 is the connection layout of the LM4871 circuit of hand-hold wireless indoor terminal of the present utility model.LM4871 output power of circuit: 1.5W; operating voltage: 2.2V-5.5V; the low-power consumption shutdown mode and the internal heat turn-off protection mechanism that possess external control; its gain can be configured by non-essential resistance; need not coupling capacitance, shunt capacitance and buffer network, only need few peripheral components.
Claims (5)
1. hand-hold wireless indoor terminal, comprise the touch screen control circuit that is connected with the HI3510 circuit respectively, the WIFI circuit, hand-written input circuit, the audio coding decoding circuit, reset circuit, power circuit, the CPLD circuit, described CPLD circuit also connects a LCD Interface circuit, the WIFI circuit is used for wireless access, it is characterized in that: described hand-hold wireless indoor terminal also comprises a RK2706 circuit, described RK2706 circuit is connected with HI 3510 circuit, described RK2706 circuit also is connected with and is used for and PC communication usb circuit, power circuit, power amplifier and loudspeaker, and the RK2706 circuit also is connected to the CPLD circuit, and the CPLD circuit is used to switch both vision signals of HI 3510 circuit and RK2706 circuit to the LCD Interface circuit.
2. hand-hold wireless indoor terminal according to claim 1 is characterized in that: described RK2706 circuit also is connected with the SD card interface circuit.
3. hand-hold wireless indoor terminal according to claim 1 is characterized in that: described HI 3510 circuit also are connected with battery charger.
4. hand-hold wireless indoor terminal according to claim 1 is characterized in that: described audio coding decoding circuit also is connected with miaow head and power amplifier LM4871, and power amplifier LM4871 is connected with loudspeaker.
5. hand-hold wireless indoor terminal according to claim 1 is characterized in that: described power circuit mainly is made up of two MP1423 chips, and one provides 3.3V to HI 3510 and peripheral circuit power supply; Another provides 5V to RK2706 and peripheral circuit power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201085856U CN201774619U (en) | 2010-02-04 | 2010-02-04 | Handheld wireless indoor terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201085856U CN201774619U (en) | 2010-02-04 | 2010-02-04 | Handheld wireless indoor terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774619U true CN201774619U (en) | 2011-03-23 |
Family
ID=43754459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201085856U Expired - Fee Related CN201774619U (en) | 2010-02-04 | 2010-02-04 | Handheld wireless indoor terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201774619U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253891A (en) * | 2011-08-26 | 2011-11-23 | 苏州瀚瑞微电子有限公司 | Device and method for debugging touch screen by utilizing GUI (Graphical User Interface) |
| CN102547240A (en) * | 2011-12-30 | 2012-07-04 | 福建省冠林科技有限公司 | Visible talk back equipment used by crowds with hearing loss |
| WO2014187251A1 (en) | 2013-10-31 | 2014-11-27 | 中兴通讯股份有限公司 | Transmitting power control and processing method and device, and terminal |
| CN105353627A (en) * | 2015-10-30 | 2016-02-24 | 河北四方通信设备有限公司 | Optical fiber converter module intelligent wireless access device based on CPLD |
-
2010
- 2010-02-04 CN CN2010201085856U patent/CN201774619U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253891A (en) * | 2011-08-26 | 2011-11-23 | 苏州瀚瑞微电子有限公司 | Device and method for debugging touch screen by utilizing GUI (Graphical User Interface) |
| CN102547240A (en) * | 2011-12-30 | 2012-07-04 | 福建省冠林科技有限公司 | Visible talk back equipment used by crowds with hearing loss |
| CN102547240B (en) * | 2011-12-30 | 2017-01-25 | 福建省冠林科技有限公司 | Visible talk back equipment used by crowds with hearing loss |
| WO2014187251A1 (en) | 2013-10-31 | 2014-11-27 | 中兴通讯股份有限公司 | Transmitting power control and processing method and device, and terminal |
| CN105353627A (en) * | 2015-10-30 | 2016-02-24 | 河北四方通信设备有限公司 | Optical fiber converter module intelligent wireless access device based on CPLD |
| CN105353627B (en) * | 2015-10-30 | 2023-10-20 | 上海威锐电子科技股份有限公司 | CPLD-based intelligent wireless access device for optical fiber converter module |
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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: 20110323 Termination date: 20130204 |