CN201298218Y - Handwritten input positioning device - Google Patents
Handwritten input positioning device Download PDFInfo
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- CN201298218Y CN201298218Y CNU2008201233969U CN200820123396U CN201298218Y CN 201298218 Y CN201298218 Y CN 201298218Y CN U2008201233969 U CNU2008201233969 U CN U2008201233969U CN 200820123396 U CN200820123396 U CN 200820123396U CN 201298218 Y CN201298218 Y CN 201298218Y
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Abstract
The utility model provides a handwritten input positioning device, belonging to the field of pattern recognition. By adopting a method combining wired and wireless connections, the handwritten input positioning device delivers handwritten data information to a computer by a data bus and a wireless radio frequency method respectively, so as to conveniently realize the recognition of the handwritten data information and perform well in practicality and operability. With simple structure, short activation time, small power consumption, less resource occupation and lower cost, the handwritten input positioning device can also ensure a longer distance of wireless transmission and have a remarkable capacity of multi-point network connections.
Description
Technical field
The utility model relates to area of pattern recognition, particularly a kind of hand input device.
Background technology
Hand input device is a kind of computer entry device, as handwriting pad, numerical digit plate etc., generally is to use a special pen, writing words or graphing in specific zone.The track record that hand input device is passed by pen by the whole bag of tricks gets off, and is identified as literal or figure then.Can be used for the input of circuit design, CAD design, graphic designs, free drawing and text and data etc.Through years of development, writing technology reaches its maturity, the hand input device product of main flow comprises in the market: wired handwriting pad (between handwriting pad and the writing pencil connecting line being arranged), wireless handwriting pad (not having connecting line between handwriting pad and the writing pencil) and wireless and passive handwriting pad (do not have between handwriting pad and the writing pencil in connecting line, the writing pencil and do not have battery), wired handwriting pad is to be applicable to closely point-to-point handwriting input.The common shortcoming of this type of handwriting pad be handwriting pad with computing machine between must have connection to be connected, use and be not very dumb.
Another kind of is all to be the wireless handwriting pad that carries out data communication by wireless technology between handwriting pad and the computing machine, and this type of handwriting pad has just risen in the world soon.Be aimed at above-mentioned wired handwriting pad problem people and proposed the wireless technology solution,, can not carry out the wired connection computing machine for the user though this type of handwriting pad can move flexibly.Must charge separately for the battery charge in the handwriting pad, it also is very inconvenient should using.
As can be seen, this class handwriting pad is to be connected realization by hardware with the data communication of computing machine, and the handwriting pad moving range is limited, is only applicable to closely point-to-point handwriting input, can't be applied to remote handwriting input.To this, those skilled in the art attempt research and realize writing technology based on basket tooth wireless technology at present, common this bluetooth hand input device is made up of handwriting pad, writing pencil and Bluetooth Receiver, though this bluetooth hand input device can solve the problem of wireless handwriting input, but because it is based on basket tooth wireless technology, so there is following problem inevitably:
One, slave networking time long (more than or equal to 3 seconds), dormancy device activation time slow (about 3 seconds);
Its two because basket tooth protocol stack structure complexity, expend system resource many (occupying system resources is about 250Kb), and basket tooth equipment power dissipation is big, cost of development is also than higher;
They are three years old, the distance of Bluetooth transmission is lacked (only about 10 meters), need to strengthen emissive power and could realize remote handwriting input, but wireless handwriting pad generally all is to adopt powered battery, realize to expend the bigger energy content of battery more at a distance, and distance still is subjected to battery powered restriction;
Its four, the quantity of bluetooth equipment networking is few, the single network number of devices is generally 8.
Thereby, those skilled in the art press for develop a kind of simple in structure, power consumption is less, cost is lower, can realize the hand input device of long-distance transmissions, wireless and passive.
The utility model content
The utility model proposes a kind of hand input positioning device, adopt wired mode that combines with wireless connections, by SCI interface and wireless radio frequency mode hand-written data information is delivered on the computing machine respectively, thereby the convenient identification that realizes hand-written data information has good practicability and operability.This apparatus structure is simple, activationary time is short, power consumption is little, resource occupation is few, cost is also lower; Can also guarantee that wireless transmission distance is longer; And has an extraordinary multidrop network concatenation ability.
A kind of hand input positioning device is characterized in that, is made up of handwriting pad, writing pencil, radio frequency receiver, radio-frequency (RF) transmitter; Writing pencil is used for triggering user's operation information, and handwriting pad writes down these information, and radio-frequency (RF) transmitter sends information, and radio frequency receiver is with these message pick-ups and output to computing machine and discern; Radio-frequency (RF) transmitter is arranged on the handwriting pad; Radio frequency receiver is connected with computing machine;
During wireless connections, data message sends to radio frequency receiver by radio-frequency (RF) transmitter, is delivered to computing machine after being received by radio frequency receiver; During wired connection, radio frequency receiver is connected with handwriting pad by data bus, and data message is delivered to computing machine after sending to radio frequency receiver by data bus.
During wireless connections, contain antiresonant circuit in the described writing pencil, track and pressure information when writing pencil is write pass to radio-frequency (RF) transmitter by handwriting pad, data message sends by the form of radio-frequency (RF) transmitter with signal, and radio frequency receiver receives these signals and output to computing machine and discerns;
During wired connection, the data bus of radio frequency receiver is connected with handwriting pad by the interface on the handwriting pad, contain antiresonant circuit in the writing pencil, track when writing pencil is write and pressure information carry out message pick-up by handwriting pad, data message passes to radio frequency receiver by the data bus of handwriting pad mainboard, and radio frequency receiver receives these signals and output to computing machine and discerns.
The mainboard of described handwriting pad comprises data bus and power interface, commutation circuit, charging module and hand-written module; Data bus and power interface carry out being connected of handwriting pad and Receiver Module, and link to each other with commutation circuit with power lead by data bus, commutation circuit is carried out switching between active and passive to mainboard, commutation circuit is connected with radio-frequency (RF) transmitter with hand-written module by data bus respectively, and is connected with power module with charging module; Charging module is responsible for the power module charging, is connected with power module; Power module is connected with hand-written module with radio-frequency (RF) transmitter respectively, is the handwriting pad main board power supply under passive states.
Described radio-frequency (RF) transmitter comprises the handwriting pad communication interface, sends single-chip microcomputer, sending module and transmitting antenna; Described radio frequency receiver comprises: receiving antenna, receiver module, reception single-chip microcomputer and computer interface;
Hand-written data information is sent to the transmission single-chip microcomputer by the handwriting pad communication interface; Described transmission single-chip microcomputer carries out encoding process based on the zigbee standard to hand-written data information, and is sent to corresponding radio frequency receiver by sending module and transmitting antenna;
Receiving antenna and receiver module receive the hand-written data information that sends, and are sent to the reception single-chip microcomputer; After the reception single-chip microcomputer is correspondingly decoded to described hand-written data information based on the zigbee standard, be passed to computing machine by computer interface and carry out information of software identification.
Described radio-frequency (RF) transmitter has unique identification information, can set up the corresponding relation of a radio frequency receiver and a plurality of radiofrequency launchers by communication protocol.
The transmitting antenna of described radio-frequency (RF) transmitter and the receiving antenna of radio frequency receiver are F type antenna.
From above-mentioned explanation the utility model following outstanding advantage is arranged:
1. there is not line to be connected between the utility model pen and the handwriting pad, wired and wireless two kinds of connected modes both can be carried out wired connection by radio frequency receiver and be carried out data communication between handwriting pad and the computing machine, can also carry out data communication by wireless radio frequency mode, it is convenient to use, and applicability is strong;
2. under wired mode, handwriting pad of the present utility model is directly powered by radio frequency receiver, does not need additional power source, and the commutation circuit of handwriting pad mainboard makes the powered battery automatic cutout simultaneously, and the feed circuit of connection radio frequency receiver, charging circuit charges for battery automatically simultaneously.
3. under wired mode, radio frequency receiver and handwriting pad interconnect by serial communication interface (SCI), have realized the mutual conversion of wired and wireless working method, and interface is reliable and stable, couple together convenient and swiftly, and communication efficiency is very high.
4. under wireless working method, transmission single-chip microcomputer of the present utility model and reception single-chip microcomputer adopt the zigbee protocol stack, and system architecture is simple, cost is low, very flexible on using, and equipment power dissipation is very little, normally operation under the situation that equipment can not charge for a long time.About 30 milliseconds of slave networking time, the networking time is short, and effectively transmission range is big, and transmission range is long.
5. the utility model radio-frequency antenna adopts F type antenna, non-directional reception and send data, and have and transmit receiving efficiency and simple structure preferably.
Description of drawings
Fig. 1 is the block diagram of the connection of a kind of hand input positioning device of the utility model;
Fig. 2 is the modular structure figure of mainboard of the handwriting pad of a kind of hand input positioning device of the utility model;
Fig. 3 is the radio-frequency (RF) transmitter structured flowchart of a kind of hand input positioning device of the utility model;
Fig. 4 is the radio frequency receiver structured flowchart of a kind of hand input positioning device of the utility model.
Among the figure: 1, handwriting pad 101, hand-written module 102, power module 103, charging module 104, commutation circuit 105, SCI and power interface 2, radio-frequency (RF) transmitter 201, handwriting pad interface 202, transmission single-chip microcomputer 203, sending module 204, transmitting antenna 3, radio frequency receiver 301, receiving antenna 302, receiver module 303, reception single-chip microcomputer 304, computer interface 305, SCI interface 4, computing machine 5, writing pencil
Embodiment
Further specify wired and two wireless, the passive coordinate input positioning apparatus system of the utility model below in conjunction with accompanying drawing.
A kind of hand input positioning device, in the present embodiment, data bus adopts the form of SCI interface to carry out data transmission.As shown in Figure 1, comprise handwriting pad 1, writing pencil 5, radio frequency receiver 3, radio-frequency (RF) transmitter 2; Writing pencil 5 is used for triggering user's operation information, these information of handwriting pad 1 record, and radio-frequency (RF) transmitter 2 sends information, and radio frequency receiver 3 is with these message pick-ups and output to computing machine 4 and discern; Radio-frequency (RF) transmitter 2 is arranged on the handwriting pad 1; Radio frequency receiver 3 is connected with computing machine 4.
The total system working method is divided into wired working method and wireless working method.In the present embodiment, handwriting pad 1 is the electromagnetic induction handwriting pad, during wireless connections, contain antiresonant circuit in the writing pencil 5, track when writing pencil 5 is write and pressure information carry out message pick-up by handwriting pad 1, these data messages send by the form of radio-frequency (RF) transmitter 2 with signal, radio frequency receiver 3 receives these signals, then by computer interface 304, deliver to computing machine 4 for the general-purpose serial bus USB oral instructions in the present embodiment, cooperate corresponding software that this hand-written data is carried out X, Y coordinate and pressure identification.Thereby coordinate and the pressure information of realizing handwriting pad 1 are entered on the computing machine 4.
During wired connection, radio frequency receiver 3 is connected with handwriting pad 1, contain antiresonant circuit in the writing pencil 5, track when writing pencil 5 is write and pressure information carry out message pick-up by handwriting pad 1, these information pass to radio frequency receiver 3 by SCI interface 305, with passing through computer interface 304 after the data processing that receives again, deliver to computing machine 4 for the general-purpose serial bus USB oral instructions in the present embodiment then.Cooperate corresponding software that this hand-written data information is carried out X, Y coordinate and pressure identification, thereby coordinate and the pressure information of realizing handwriting pad 1 are entered on the computing machine 4.
When the mainboard of handwriting pad 1 is in wireless status, be that SCI is not connected with the SCI interface 305 of radio frequency receiver 3 with power interface 105, mainboard is powered by the power module on the mainboard 102, and power module 102 is through adversary's writing module 101 and radio-frequency (RF) transmitter 2 power supplies respectively after the voltage transitions.After hand-written module 101 has been gathered hand-written data, directly be sent to radio-frequency (RF) transmitter 2, send, receive by radio frequency receiver 3 again, and computer interface 304 is sent to computing machine 4 by radio-frequency (RF) transmitter 2 information of carrying out by SCI bus and commutation circuit 104.Computing machine 4 carries out X by corresponding software to this hand-written data information, Y coordinate and pressure identification, thus realize wired handwriting input.
When the mainboard of handwriting pad 1 is in cable status, the SCI interface 305 that is radio frequency receiver 3 is connected with power interface 105 with the SCI of handwriting pad 1, after switching, radio-frequency (RF) transmitter 3 and hand-written module 101 are powered by the power lead that SCI and power interface 105 pick out through commutation circuit.Power lead charges to power module 102 automatically simultaneously, and is full of automatic and its disconnection in back at battery.Hand-written data is sent to SCI and power interface 105 by SCI bus and commutation circuit 104, and is transferred to radio frequency receiver 3 after gathering in hand-written module 101, is received by radio frequency receiver 3 again, is sent to computing machine 4 by computer interface 304 again.Computing machine 4 carries out X by corresponding software to this hand-written data information, Y coordinate and pressure identification, thus realize wireless handwriting input.
When the SCI of radio frequency receiver 3 interface 305 is connected with power interface 105 with the SCI of handwriting pad 1, commutation circuit 104 will detect 105 states of SCI and power interface automatically, switch to by radio frequency receiver 3 power supply and by the SCI bus and be connected, disconnect as the power module 102 of main board power supply power supply simultaneously and disconnect the SCI bus that mainboard is connected with radio-frequency (RF) transmitter 2 with the reception single-chip microcomputer 303 of radio frequency receiver 3.As the SCI of the SCI of radio frequency receiver 3 interface 305 and handwriting pad 1 during with power interface 105 disconnections, commutation circuit 101 will detect the state of SCI and power interface 105 automatically, the duty when automatically switching to handwriting pad 1 mainboard and be in wireless status by commutation circuit 104.
As shown in Figure 3, described radio-frequency (RF) transmitter 2 comprises handwriting pad interface 201, sends single-chip microcomputer 202, sending module 203 and transmitting antenna 204; Handwriting pad interface 201 is used for keeping communicate by letter with handwriting pad 1, and track during with user hand-written and pressure information are delivered to and send single-chip microcomputer 202 places, in the present embodiment, adopt 3.3 volts of power supplies of direct current, and this voltage is the stabilized voltage supply by power module 102 acquisitions.Sending single-chip microcomputer 202, to adopt frequency ranges be the zigbee protocol stack of 2.4GHz, adopted the IEEE802.15.4 standard, and track when hand-written and pressure information are by sending module 203, and sending module 203 sends by transmitting antenna 204 information of carrying out of F type.
In the present embodiment, computer interface 304 adopts USB interface, is 5 volts of power supplies of direct current.As shown in Figure 4, described radio frequency receiver 3 comprises: receiving antenna 301, receiver module 302, reception single-chip microcomputer 303 and computer interface 304.Receiving antenna 301 adopts F shape antenna, receive track and the pressure information that one or more transmitting antennas 204 send with receiver module 302, after these information via receiver modules 302 were handled, by computer interface 304, i.e. computing machine 4 was delivered in general-purpose serial bus USB oral instructions.
All be solidified with different addresses owing to different radio-frequency (RF) transmitter 2 before dispatching from the factory in addition, computing machine 4 is discerned different handwriting pad 1 according to this address information, thereby realizes the input of polylith handwriting pad coordinate.This device transmitting range is 10～75 meters, is fit closely for Web-based instruction user.
Claims (6)
1, a kind of hand input positioning device is characterized in that, is made up of handwriting pad, writing pencil, radio frequency receiver, radio-frequency (RF) transmitter; Writing pencil is used for triggering user's operation information, and handwriting pad writes down these information, and radio-frequency (RF) transmitter sends information, and radio frequency receiver is with these message pick-ups and output to computing machine and discern; Radio-frequency (RF) transmitter is arranged on the handwriting pad; Radio frequency receiver is connected with computing machine;
During wireless connections, data message sends to radio frequency receiver by radio-frequency (RF) transmitter, is delivered to computing machine after being received by radio frequency receiver; During wired connection, radio frequency receiver is connected with handwriting pad by data bus, and data message is delivered to computing machine after sending to radio frequency receiver by data bus.
2, according to the described a kind of hand input positioning device of claim 1, it is characterized in that: during wireless connections, contain antiresonant circuit in the described writing pencil, track and pressure information when writing pencil is write pass to radio-frequency (RF) transmitter by handwriting pad, data message sends by the form of radio-frequency (RF) transmitter with signal, and radio frequency receiver receives these signals and output to computing machine and discerns;
During wired connection, the data bus of radio frequency receiver is connected with handwriting pad by the interface on the handwriting pad, contain antiresonant circuit in the writing pencil, track when writing pencil is write and pressure information carry out message pick-up by handwriting pad, data message passes to radio frequency receiver by the data bus of handwriting pad mainboard, and radio frequency receiver receives these signals and output to computing machine and discerns.
3, according to the described a kind of hand input positioning device of claim 1, it is characterized in that: the mainboard of described handwriting pad comprises data bus and power interface, commutation circuit, charging module and hand-written module; Data bus and power interface carry out being connected of handwriting pad and Receiver Module, and link to each other with commutation circuit with power lead by data bus, commutation circuit is carried out switching between active and passive to mainboard, commutation circuit is connected with radio-frequency (RF) transmitter with hand-written module by data bus respectively, and is connected with power module with charging module; Charging module is responsible for the power module charging, is connected with power module; Power module is connected with hand-written module with radio-frequency (RF) transmitter respectively, is the handwriting pad main board power supply under passive states.
4, according to the described a kind of hand input positioning device of claim 1, it is characterized in that: described radio-frequency (RF) transmitter comprises the handwriting pad communication interface, sends single-chip microcomputer, sending module and transmitting antenna; Described radio frequency receiver comprises: receiving antenna, receiver module, reception single-chip microcomputer and computer interface;
Hand-written data information is sent to the transmission single-chip microcomputer by the handwriting pad communication interface; Described transmission single-chip microcomputer carries out encoding process based on the zigbee standard to hand-written data information, and is sent to corresponding radio frequency receiver by sending module and transmitting antenna;
Receiving antenna and receiver module receive the hand-written data information that sends, and are sent to the reception single-chip microcomputer; After the reception single-chip microcomputer is correspondingly decoded to described hand-written data information based on the zigbee standard, be passed to computing machine by computer interface and carry out information of software identification.
5, according to the described a kind of hand input positioning device of claim 4, it is characterized in that: described radio-frequency (RF) transmitter has unique identification information, can set up the corresponding relation of a radio frequency receiver and a plurality of radiofrequency launchers by communication protocol.
6, according to the described a kind of hand input positioning device of claim 4, it is characterized in that: the transmitting antenna of described radio-frequency (RF) transmitter and the receiving antenna of radio frequency receiver are F type antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201233969U CN201298218Y (en) | 2008-11-10 | 2008-11-10 | Handwritten input positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201233969U CN201298218Y (en) | 2008-11-10 | 2008-11-10 | Handwritten input positioning device |
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| Publication Number | Publication Date |
|---|---|
| CN201298218Y true CN201298218Y (en) | 2009-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201233969U Expired - Lifetime CN201298218Y (en) | 2008-11-10 | 2008-11-10 | Handwritten input positioning device |
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| CN (1) | CN201298218Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010051722A1 (en) * | 2008-11-10 | 2010-05-14 | 汉王科技股份有限公司 | A coordinate location device |
-
2008
- 2008-11-10 CN CNU2008201233969U patent/CN201298218Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010051722A1 (en) * | 2008-11-10 | 2010-05-14 | 汉王科技股份有限公司 | A coordinate location device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Yingjian Inventor after: Sun Ying Inventor after: Yin hang Inventor after: Shang Yanfeng; Inventor before: Liu Yingjian Inventor before: Sun Ying Inventor before: Yin hang Inventor before: Shang Yanfeng; |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161121 Address after: 100193 Beijing, Haidian District, northeast Wang West Road, building 3, floor 363, room 5, room 8 Patentee after: BEIJING HANVON PENGTAI TECHNOLOGY CO., LTD. Address before: 100193 Beijing, Haidian District, northeast Wang West Road, building three, floor 5, layer 8 Patentee before: Hanwang Tech Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090826 |