CN101989164B - Electronic white board and positioning method thereof - Google Patents
Electronic white board and positioning method thereof Download PDFInfo
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- CN101989164B CN101989164B CN2009101640428A CN200910164042A CN101989164B CN 101989164 B CN101989164 B CN 101989164B CN 2009101640428 A CN2009101640428 A CN 2009101640428A CN 200910164042 A CN200910164042 A CN 200910164042A CN 101989164 B CN101989164 B CN 101989164B
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Abstract
The invention relates to an electronic white board and a positioning method thereof, in particular to an electromagnetic interactive electronic white board using a pointer device with no battery and a positioning method thereof. The electronic white board uses a plurality of signal management devices to respectively control the antenna substrate in the electronic white board to send out electromagnetic energy so that the energy-sending processes can not interfere mutually and the false judgement on the position of the pointer device with no battery can not be caused. In addition, the battery can be replaced by using the antenna substrate in the electronic white board to send out electromagnetic energy and energy can be provided for the pointer device with no battery to emit electromagnetic signals, thus the electronic white board is more environmentally friendly and practical.
Description
Technical field
The present invention relates to a kind of electronic whiteboard and its localization method, particularly relate to electromagnetism interactive electronic blank and its localization method that a kind of application does not have the battery index device.
Background technology
In recent years; Electronic whiteboard is used in various meetings, symposial and the school widely; In order to carry out bulletin, to explain orally and teaching; Particularly the interactive electronic blank is imported in the classroom by many countries in recent years, in order to make up dynamical electrification (eization) classroom as the accessory of imparting knowledge to students.For instance; The middle and primary schools of Britain have reached 50% class in 2007 have the interactive electronic blank; And other countries; For example countries such as the U.S., Australia, Hong Kong, Japan, Singapore, Mexico and Malaysia also all progressively adopt the interactive electronic blank to impart knowledge to students, and TaiWan, China adopts the interactive electronic blank to impart knowledge to students in the school that part is also arranged in recent years under the special project of the Ministry of Education is auxiliary.
The interactive electronic blank mainly can be divided into four kinds of pressure-sensitive, electromagnetic type, ultrasonic induction type and two-way infrared-types etc. according to its principle of work, and wherein electromagnetism interactive electronic blank is used comparatively widely.Shown in Figure 1A, it is the synoptic diagram of a traditional electromagnetism interactive electronic blank 10.Electromagnetism interactive electronic blank 10 is arranged in pairs or groups by an electronic whiteboard plate body 20 and an electromagnetic pen 30 usually and is formed.Wherein, electromagnetic pen 30 has a button 32 control electromagnetic pens 30 emission electromagnetic signals, and electromagnetic pen 30 domestic demands are equipped a battery 34 as the energy that electromagnetic signal is provided.In addition, electronic whiteboard plate body 20 inside respectively along X-direction be provided with antenna loop 22X and 22Y along Y direction, shown in Figure 1B, the electromagnetic signal that it is sent in order to inductive electromagnetic induction pen 30, and computational discrimination goes out the position of electromagnetic pen 30.
The locator meams of electromagnetic pen 30 position coordinateses of this traditional electromagnetism interactive electronic blank 10; Be the electromagnetic signal of being sent by the inner antenna loop 22X of electronic whiteboard plate body 20 and 22Y inductive electromagnetic induction pen 30, and calculate the position coordinates of battery induction pen 30.Because magnetic field intensity and square distance are inversely proportional to, so antenna loop is far away more with electromagnetic pen 30 distances, and received electromagnetic pen 30 sends electromagnetic signal with regard to a little less than more, otherwise receiving electromagnetic pen 30, to send electromagnetic signal just strong more.Therefore, collect the electromagnetic signal strength that each antenna loop is received, through analyzing and calculating the accurate coordinates that can obtain electromagnetic pen 30 position on electronic whiteboard plate body 20.
In recent years, along with the new line of environmental consciousness, the use of battery because waste battery to the pollution of environment, so progressively be reduced and replace.Therefore, the electromagnetic pen 30 in traditional electromagnetism interactive electronic blank 10 must obviously not meet the demand of environmental protection via by equipping battery within it as the providing of power supply.Moreover; At electromagnetic pen 30 because with the energy resource supply of a battery as the generating magnetic signal, but often owing to the energy state that can't learn battery, and replacing battery that can't be in good time; Often change, and cause the inconvenience in the use because battery does not have electricity.In addition; With regard to present electromagnetism interactive electronic blank product on the market; All be to adopt the index inductive module technology that battery is arranged; For example with the electromagnetic pen of battery as the energy of emission electromagnetic signal, the electromagnetism interactive electronic blank that does not have any application not have battery index inductive module technology comes across on the market.
This shows that above-mentioned existing electronic whiteboard and its localization method obviously still have inconvenience and defective, and demand urgently further improving in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but does not see always that for a long time suitable design is developed completion; And common product does not have appropriate structure to address the above problem; Therefore, need electromagnetism interactive electronic blank and its localization method of wanting a kind of application not have the battery index device badly, make electromagnetism interactive electronic blank can use no battery index device; Still can position accurately; And need not change battery and can continue and use, and make more compliance with environmental protection requirements of electromagnetism interactive electronic blank, this obviously is the problem of the anxious desire solution of relevant dealer.Therefore how to found a kind of new electronic whiteboard and its localization method, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, overcome the defective that existing electronic whiteboard exists, and a kind of new electronic whiteboard and its localization method are provided; Technical matters to be solved is that it can be applied to no battery index device on the electromagnetism interactive electronic blank; And position accurately, and can omit the demand of battery, and the use that still continues; And then the pollution that reduces waste battery is very suitable for practicality to meet the demand of environmental protection.
Another object of the present invention is to; A kind of localization method of new electronic whiteboard is provided; Technical matters to be solved is to make it can use no battery index device on electromagnetism interactive electronic blank, and accurately calculates the position coordinates of no battery index device, and can not receive the influence of other antenna plate in the electronic whiteboard; And cause the erroneous judgement of no battery index device position, thereby be suitable for practicality more.
The object of the invention and solve its technical matters and adopt following technical scheme to realize.A kind of electronic whiteboard according to the present invention's proposition; It comprises: a no battery index device; In order to write input data or to carry out function selecting; Wherein have the electromagnetic energy that an electromagnetic induction loop is sent in order to those antenna plate of electromagnetic induction in this no battery index device, and store electrical energy is as the power supply that sends electromagnetic signal; And an electronic whiteboard plate body, to use for this no battery index device to move freely above that, this electronic whiteboard plate body comprises: a plurality of antenna plate; Be arranged in this electronic whiteboard; To this no battery index device, and receive the electromagnetic signal that this no battery index device sends in order to the emission electromagnetic energy, carry out the location of this no battery index device; Wherein each this antenna plate all has a plurality of antenna loops, in order to emission electromagnetic energy and receiving electromagnetic signals; And a plurality of SIGNALS MANAGEMENT devices, launch electromagnetic energy in order to control those antenna plate, and handle the electromagnetic signal that those antenna plate receive is sent by this no battery index device, wherein each this antenna plate all disposes this SIGNALS MANAGEMENT device of a correspondence.
The object of the invention and solve its technical matters and also can adopt following technical measures further to realize.
Aforesaid electronic whiteboard, those all antenna plate of wherein said SIGNALS MANAGEMENT device control are launched electromagnetic energy simultaneously, are positioned on which person of those antenna plate to detect this no battery index device.
Aforesaid electronic whiteboard, the electromagnetic energy that the antenna plate that wherein said no battery index device receives its position is sent, and store electrical energy is also sent the antenna plate of electromagnetic signal to its place by this.
Aforesaid electronic whiteboard; One of them of wherein said antenna plate received the electromagnetic signal that this no battery index device is sent; The pairing SIGNALS MANAGEMENT device of this antenna plate then notifies other those antenna plate corresponding SIGNALS MANAGEMENT device, and the corresponding SIGNALS MANAGEMENT device of other those antenna plate then can be controlled its pairing antenna plate and stop to launch electromagnetic energy.
Aforesaid electronic whiteboard, the antenna plate at wherein said no battery index device place is received the electromagnetic signal that this no battery index device is sent, this antenna plate is calculated according to this electromagnetic signal and is obtained the position of this no battery index device.
The object of the invention and solve its technical matters and also adopt following technical scheme to realize.The localization method of the electronic whiteboard that proposes according to the present invention; Wherein this electronic whiteboard is made up of a plurality of antenna plate and a no battery index device; And each this antenna plate all is provided with the SIGNALS MANAGEMENT device of a correspondence; Wherein each this antenna plate all has a plurality of antenna loops, and this method comprises: launch electromagnetic energy simultaneously by those all antenna plate of those SIGNALS MANAGEMENT device controls; The energy storage by one of them electromagnetic energy that sends of these no those antenna plate of battery index device reception, and send electromagnetic signal by this; The antenna plate at this no battery index device place receives this electromagnetic signal, and notifies corresponding this no battery index device of SIGNALS MANAGEMENT device of this antenna plate to be positioned on this antenna plate; By notifying the corresponding SIGNALS MANAGEMENT device of other those antenna plate to stop to send electromagnetic energy to the corresponding SIGNALS MANAGEMENT device of antenna plate that should not have battery index device place; And corresponding its pairing antenna plate of SIGNALS MANAGEMENT device control of other those antenna plate stops to send electromagnetic energy.
The object of the invention and solve its technical matters and also can adopt following technical measures further to realize.
The localization method of aforesaid electronic whiteboard; Wherein said those all antenna plate are launched the electromagnetic energy step simultaneously; Be the mode of sending electromagnetic energy by those SIGNALS MANAGEMENT devices according to opening those antenna loops in the said antenna plate one by one, send electromagnetic energy and control those all antenna plate simultaneously.
The localization method of aforesaid electronic whiteboard; Wherein also comprise a position coordinates calculation procedure; This step by the corresponding SIGNALS MANAGEMENT device of the antenna plate at this no battery index device place according to receive to such an extent that this electromagnetic signal is calculated, and obtain the accurate coordinates of this no battery index device.
The localization method of aforesaid electronic whiteboard wherein also comprises a notifying process, is ready for sending electromagnetic energy in order to other those antenna plate of notifying contiguous this no battery index device to move the antenna plate at place, back.
The localization method of aforesaid electronic whiteboard; Also comprise a reboot step; On the antenna plate of this no battery index device, remove by original place; Make when this antenna plate does not receive the electromagnetic signal that this no battery index device sends, notify those all SIGNALS MANAGEMENT devices to control those all antenna plate again and send electromagnetic energy.
The present invention compared with prior art has tangible advantage and beneficial effect.Can know that by above technical scheme major technique of the present invention thes contents are as follows:
For achieving the above object; The invention provides a kind of electronic whiteboard; It will not have the battery index device and will be applied on the electromagnetism interactive electronic blank; This electronic whiteboard has one in order to writing input data or to carry out the no battery index induction installation of function selecting, and the electronic whiteboard plate body that can move freely above that for no battery index device.Then be provided with a plurality of antenna plate in the electronic whiteboard plate body, do not have cell apparatus in order to the emission electromagnetic energy to this, and receive the electromagnetic signal that this no cell apparatus sends, and provide energy to position to the start of no battery index device and to it.In addition; Each antenna plate disposes the SIGNALS MANAGEMENT device of a correspondence; Carry out the emission of electromagnetic energy and manage its shooting sequence in order to the control antenna plate, and open or close the emission of electromagnetic energy in order to the SIGNALS MANAGEMENT device of notifying corresponding other antenna plate.This electronic whiteboard can be applied in no battery index device in the electronic whiteboard by the antenna plate in this electronic whiteboard plate body and the configuration of SIGNALS MANAGEMENT device, still its accurate localization can be provided, and make electronic whiteboard more meet the environmental protection demand.
In addition; For achieving the above object; The present invention also provides a kind of localization method of electronic whiteboard, and it can be applied to no battery index device on the electromagnetism interactive electronic blank, and its accurate localization is provided; Wherein, electronic whiteboard is made up of a plurality of antenna plate, no battery index device and a plurality of SIGNALS MANAGEMENT device of respective antenna plate respectively.The localization method of this electronic whiteboard contains the following step: at first; Send electromagnetic energy simultaneously by all antenna plate of SIGNALS MANAGEMENT device control; Then, no battery index device receives electromagnetic energy that one of them antenna plate sends and energy storage, and sends electromagnetic signal by this.Antenna plate when no battery index device place receives no battery electromagnetic signal that index device sends; Then notify SIGNALS MANAGEMENT device to antenna plate that should not have battery index device place; Then; This SIGNALS MANAGEMENT device is after obtaining notice; Then the SIGNALS MANAGEMENT device of corresponding other antenna plate of notice (no battery index device not above that antenna plate) stops to send electromagnetic energy, and these SIGNALS MANAGEMENT devices are after the notice that the SIGNALS MANAGEMENT device of receiving the antenna plate that no battery index device belongs to is sent, and then its pairing antenna plate stops to send electromagnetic energy respectively.This localization method not only can be applied to no battery index device on the electromagnetism interactive electronic blank; No battery index device accurate position coordinate on electronic whiteboard more can be provided; Simultaneously again because after the antenna plate of sensing no battery index device place; Promptly control other antenna plate and stop to send electromagnetic energy; Make in the accurate location of follow-up no battery index device position and do not have in the tracking of battery index device position, receive the erroneous judgement that effect of signals caused that other antenna plate are sent.
By technique scheme; Electronic whiteboard of the present invention and its localization method have advantage and beneficial effect at least: therefore; The invention enables no battery index device can be applied on the electromagnetism interactive electronic blank; And can accurately locate it, and can not cause the erroneous judgement of position because of the interference each other of antenna plate in the electronic whiteboard.In addition, this electronic whiteboard and its localization method more because omitted the demand of battery, and make electronic whiteboard more meet the demand of environmental protection.
In sum, the invention relates to a kind of electronic whiteboard and its localization method, particularly do not have electromagnetism interactive electronic blank and its localization method of battery index device about a kind of application.This electronic whiteboard is controlled electronic whiteboard internal antenna plate respectively by a plurality of SIGNALS MANAGEMENT devices and is sent electromagnetic energy; And can interfering with each otherly not cause erroneous judgement to no battery index device position; In addition; The electromagnetic energy that is more sent by electronic whiteboard internal antenna plate replaces battery, carries out the emission of electromagnetic signal and offer no battery index device energy, and makes electronic whiteboard have more the feature of environmental protection and practicality.The present invention has obvious improvement technically, and has tangible good effect, really is the new design of a novelty, progress, practicality.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of instructions, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Figure 1A is the schematic perspective view of known electromagnetism interactive electronic blank.
Figure 1B is the floor map of the antenna plate in the known electromagnetism interactive electronic blank.
Fig. 2 A is the floor map in the electromagnetism interactive electronic blank of one embodiment of the invention.
Fig. 2 B is the planar structure synoptic diagram of antenna plate in the electromagnetism interactive electronic blank shown in Fig. 2 A.
Fig. 3 is the process flow diagram of the localization method of one embodiment of the invention.
10: electromagnetism interactive electronic blank 20: electronic whiteboard plate body
30: electromagnetic pen 32: button
34: battery 22X, 22Y: antenna loop
100: electronic whiteboard 200: the electronic whiteboard plate body
201A, 201B, 201C, 201D: antenna plate
202X, 202Y: antenna loop
203a, 203b, 203c, 203d: SIGNALS MANAGEMENT device
300: no battery index device 302: electromagnetic induction circuit
400: control all antenna plate and launch the electromagnetic energy step simultaneously
402: no battery index device receives the electromagnetic energy that an antenna plate sends and sends the electromagnetic signal step by this
404: the antenna plate receiving electromagnetic signals at no battery index device place, and the corresponding SIGNALS MANAGEMENT device of notice
406: the SIGNALS MANAGEMENT device of corresponding other antenna plate of notice stops to send electromagnetic energy
408: other antenna plate stop to send electromagnetic energy
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment; To the electronic whiteboard and embodiment, structure, characteristic and the effect thereof of its localization method that proposes according to the present invention, specify as after.
Some embodiments of the present invention are described in detail as follows.Yet except this was described in detail, the present invention can also be widely implements at other embodiment.That is, the restriction of the embodiment that scope of the present invention does not receive to have proposed, and the claim scope that proposes with the present invention is as the criterion.Secondly; When each element in embodiments of the invention illustrate or structure are explained with single element or structrual description; Should be with this as the cognition that qualification is arranged, promptly following explanation not during the restriction on the lay special stress on number spirit of the present invention and range of application can spread to the more on an element or structure and structure of depositing and the method.Moreover in this manual, the different piece of each element is not drawn according to size fully, and some yardstick is compared with other scale dependents or had by exaggeration or simplification, to provide clearer description to promote understanding of the present invention.And the existing skill that the present invention continued to use is only done quoting of emphasis formula at this, to help elaboration of the present invention.
Please with reference to shown in Fig. 2 A, it is the floor map of the electronic whiteboard 100 of one embodiment of the invention, and electronic whiteboard 100 is an electromagnetism interactive electronic blank.Electronic whiteboard 100 comprises an electronic whiteboard plate body 200 and a no battery index device 300, and wherein, no battery index device 300 can freely move on electronic whiteboard plate body 200 and write input or function selecting.
Be provided with polylith antenna plate 201A, 201B, 201C, 201D in the electronic whiteboard plate body 200; And a plurality of SIGNALS MANAGEMENT device 203a, 203b, 203c, 203d; Wherein, Each antenna plate 201A, 201B, 201C, 201D be a corresponding SIGNALS MANAGEMENT device 203a, 203b, 203c, 203d respectively; Promptly shown in Fig. 2 A, antenna plate 201A respective signal management devices 203a, antenna plate 201B respective signal management devices 203b, antenna plate 201C respective signal management devices 203c antenna plate 201D be respective signal management devices 203d then. Antenna plate 201A, 201B, 201C, 201D arrange in electronic whiteboard plate body 200; Supply no battery index device 300 inductions to receive in order to the emission electromagnetic energy; And receive the electromagnetic signal that no battery index device is sent, provide energy to no battery index device 300 and the coordinate setting of not having battery index device 300 by this.The emission of electromagnetic energy is opened or closed to each SIGNALS MANAGEMENT device (203a, 203b, 203c, 203d) in order to control its pairing antenna plate (201A, 201B, 201C, 201D) respectively; And handle the electromagnetic signal that antenna plate receive is sent by no battery index device 300, and the motion track that does not have the coordinate setting of battery index device 300 and follow the trail of follow-up no battery index device 300.
In the present embodiment; Though electronic whiteboard plate body 200 is made up of four antenna plate 201A, 201B, 201C, 201D; But do not exceed, but can required antenna plate be set, can use two antenna plate to form the plate body of electronic whiteboard when for example needing the electronic whiteboard of less size according to the size of required electronic whiteboard plate body with this number; And when needing the electronic whiteboard of large-size, then can use 6,8 or even more antenna plate to form.
Each antenna plate 201A, 201B, 201C, 201D all have a plurality of antenna loop settings wherein, in order to emission electromagnetic energy and receiving electromagnetic signals.Shown in Fig. 2 B, it is the planar structure synoptic diagram of the antenna plate 201A in the electronic whiteboard 100 shown in Fig. 2 A, and other antenna plate 201B of electronic whiteboard 100,201C, 201D then have the structure identical with it.Disposing a plurality of antenna loop 202X along X-direction at antenna plate 201A, and distributing, and disposing a plurality of antenna loop 202Y along Y direction, and distributing along Y direction along X-direction.Each antenna plate 201A, 201B, 201C, 201D are respectively by SIGNALS MANAGEMENT device 203a, 203b, 203c, 203d; And control antenna loop 202X, 202Y wherein launches electromagnetic energy in regular turn one by one; And receive the electromagnetic signal that no battery index device 300 is fired back, and the no battery index device 300 of detecting is to be positioned on that antenna plate and to it to do the precise coordinates location.
In addition; Refer again to shown in Fig. 2 A; No battery index device 300 inside have an electromagnetic induction circuit 302; The electromagnetic energy that is sent in order to electromagnetic induction antenna plate 201A, 201B, 201C, 201D; And carry out energy storage as the energy of no battery index device 300 in order to the emission electromagnetic signal, and electromagnetic induction circuit 302 also makes the antenna plate 201A, 201B, 201C, 201D can the inductive electromagnetic signal and calculate and obtain not have the position coordinates of battery index device 300 in order to the emission electromagnetic signal.In the present embodiment; No battery index device is a no battery pen, but not as limit, but can adopt any inside to have the index device of battery sensor circuit; In addition; In other embodiment of the present invention, no battery index device is configurable to have a button and a key circuit in wherein, controls key circuit by pushing of button and goes to change the electromagnetic signal frequency that no battery index device is launched; And the function of the no battery index device of change, or in order on electronic whiteboard, to carry out clicking of function.
This electronic whiteboard 100 make flowing mode and localization method is following: with reference to Fig. 2 A, Fig. 2 B and shown in Figure 3, wherein, Fig. 3 is the process flow diagram of the localization method of electronic whiteboard of the present invention.At first; SIGNALS MANAGEMENT device 203a, 203b, 203c, 203d control its pairing antenna plate 201A, 201B, 201C, 201D respectively and send electromagnetic energy simultaneously; And make all antenna plate 201A, 201B, 201C, 201D send electromagnetic energy simultaneously, and be positioned on that antenna plate (step 400) in order to the no battery index device 300 of detecting.Wherein, The mode that each antenna plate 201A, 201B, 201C, 201D send electromagnetic energy is by corresponding SIGNALS MANAGEMENT device 203a, 203b, 203c, 203d, and the antenna loop preface of controlling in it is sent electromagnetic energy one by one, is example with antenna plate 201A; SIGNALS MANAGEMENT device 203a control antenna plate 201A opens article one antenna loop and sends electromagnetic energy at the beginning; Close then, open the second antenna loop again and send electric flux, and then close the second antenna loop; Repeat these step 1 to the last till the strip antenna, make line loop every day among the antenna plate 201A send electromagnetic energy in regular turn seriatim with order according to this step.In addition; Other antenna plate 201B, 201C, 201D are also according to above-mentioned steps and order; And the antenna loop of controlling in it sends electromagnetic energy in regular turn seriatim; And make all antenna plate 201A, 201B, 201C, 201D synchronously send electromagnetic energy; That is when article one antenna loop of SIGNALS MANAGEMENT device 203a control antenna plate 201A sent electromagnetic energy, simultaneously, article one antenna loop that SIGNALS MANAGEMENT device 203b, 203c, 203d also control its corresponding antenna plate 201B, 201C, 201D respectively sent electromagnetic energy.
Then; No battery index device 300 can be received the electromagnetic energy that antenna plate 201A, 201B, 201C, 201D sent of one of them; Particularly not having the antenna plate at battery index device 300 places, is example with Fig. 2 A, and no battery index device 300 is positioned on the antenna plate 201A.No battery index device 300 receives electromagnetic energy and carries out energy storage by 302 inductions of the electromagnetic induction circuit in it, and by the energy supply of stored energy as no battery index device 300, and send use (step 402) of electromagnetic signal for the location.
Then; The antenna plate 201A at no battery index device 300 places because do not have 300 of battery index devices on it, and receives the electromagnetic signal that no battery index device is sent; Then; Antenna plate 210A notifies its pairing SIGNALS MANAGEMENT device 203a, and antenna plate 201A has detected 300 of no battery index devices (step 404) on it, and antenna plate 201A with receive to such an extent that electromagnetic signal sends signal processing apparatus 203a in the lump to.Then; After receiving the notice that antenna plate 201A transmits; The position that SIGNALS MANAGEMENT device 203a then notifies corresponding other antenna plate 201B, 201C, the SIGNALS MANAGEMENT device 203b of 201D, 203c, 203d to detect no battery index device 300, and notification signal management devices 203b, 203c, 203d control antenna plate 201B, 201C, 201D stop to send electromagnetic energy (step 406).Then; After receiving the notice that signal management devices 203a transmits; SIGNALS MANAGEMENT device 203b, 203c, 203d control its corresponding antenna plate 201B, 201C, 201D respectively and stop to send electromagnetic energy (step 408); Avoiding its electromagnetic energy emitted to cause interference, and cause the erroneous judgement of no battery index device position coordinates.
In addition; Doing in flowing mode and the localization method of aforesaid electronic whiteboard; Antenna plate 201A; The antenna plate (shown in Fig. 2 B) of promptly not having battery index device place, after receiving the electromagnetic signal that no battery index device 300 sent and being sent to the pairing signal processing apparatus 203a of antenna plate 201A, signal processing apparatus 203a can carry out a position coordinates calculation procedure.In this position coordinates calculation procedure; Signal processing apparatus 203a converges every day among whole antenna plate 201A line loop and senses the power of the electromagnetic signal that no battery index device 300 sent, and calculates the accurate coordinates of the position of no battery index device 300.
Moreover; When no battery index device 300 is moved toward contiguous antenna plate by antenna plate 201A; For example antenna plate 201B, 201C, 201D; Antenna plate 201A not only can continue to scan to follow the trail of the track of no battery index device 300; And can be when no battery index device 300 be near antenna plate 201A and other antenna plate intersections, promptly when the antenna plate of adorning 300 places near no battery index and 300 desires of no battery index device moved the intersection of the antenna plate of going to, electronic whiteboard 100 can be carried out a notifying process; Be that the SIGNALS MANAGEMENT device that the SIGNALS MANAGEMENT device 203a of antenna plate 201A can notify 300 desires of no battery index device to move the antenna plate of going to prepares to begin to send electromagnetic energy, with the position of the no electromagnetism index device of detecting.For instance; With Fig. 2 A is example; When no battery index device 300 on the antenna plate 201A of electronic whiteboard plate body 200 toward antenna plate 201C when moving; No battery index device 300 is near antenna plate 201A and antenna plate 201C intersection, and the SIGNALS MANAGEMENT device 203a of antenna plate 201A can notify the SIGNALS MANAGEMENT device 203c of antenna plate 201C to prepare the emission electromagnetic energy.Therefore; In case when not having battery index device 300 and moving to antenna plate 201C; Antenna plate 201A can't receive the electromagnetic signal that no battery index device is sent again; The SIGNALS MANAGEMENT device 203a of this antenna plate 201A can notify the SIGNALS MANAGEMENT device 203c of antenna plate 201C to begin to launch electromagnetic energy, with track that continue to follow the trail of no battery index device 300 with and coordinate position.
In addition; When no battery index device is removed on directly by original place antenna plate; And when not moving on arbitrary antenna plate of its day; Electronic whiteboard can be carried out a reboot step, controls all antenna plate emission electromagnetic energies, the position of the no battery index device of search again again in order to notify all SIGNALS MANAGEMENT devices.With Fig. 2 A is example; When no battery index device 300 is removed on directly by original place antenna plate 201A; And when not moving to other antenna plate 201B, 201C, 201D; The SIGNALS MANAGEMENT device 203a of respective antenna plate 201A can notify corresponding other antenna plate 201B, 201C, the SIGNALS MANAGEMENT device 203b of 201D, 203c, 203d; Restart to send electromagnetic energy and control all antenna plate 201A, 201B, 201C, 201D simultaneously, and the position of the no battery index device 300 of detecting again.
Therefore; The present invention provides a kind of electronic whiteboard and its localization method; And can no battery index device be applied on the electromagnetism interactive electronic blank, and can it accurately be located, and can not cause the erroneous judgement of position because of the interference each other of antenna plate in the electronic whiteboard.In addition, this electronic whiteboard and its localization method more because omitted the demand of battery, and make electronic whiteboard more meet the demand of environmental protection.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from technical scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (10)
1. electronic whiteboard is characterized in that it comprises:
One no battery index device; In order to write input data or to carry out function selecting; Wherein have the electromagnetic energy that an electromagnetic induction loop is sent in order to the electromagnetic induction antenna plate in this no battery index device, and store electromagnetic energy as the energy that sends electromagnetic signal; And
One electronic whiteboard plate body is used for this no battery index device to move freely above that, and this electronic whiteboard plate body comprises:
A plurality of antenna plate; Be arranged in this electronic whiteboard; To this no battery index device, and receive the electromagnetic signal that this no battery index device sends in order to the emission electromagnetic energy, carry out the location of this no battery index device; Wherein each this antenna plate all has a plurality of antenna loops, in order to emission electromagnetic energy and receiving electromagnetic signals; And
A plurality of SIGNALS MANAGEMENT devices are launched electromagnetic energy in order to control those antenna plate, and are handled the electromagnetic signal that those antenna plate receive is sent by this no battery index device, and wherein each this antenna plate all disposes this SIGNALS MANAGEMENT device of a correspondence.
2. electronic whiteboard according to claim 1 is characterized in that those all antenna plate of wherein said SIGNALS MANAGEMENT device control launch electromagnetic energy simultaneously, is positioned on which person of those antenna plate to detect this no battery index device.
3. electronic whiteboard according to claim 2 is characterized in that wherein said no battery index device receives the electromagnetic energy that the antenna plate of its position is sent, and stores electromagnetic energy and send the antenna plate of electromagnetic signal to its place by this.
4. electronic whiteboard according to claim 3; One of them that it is characterized in that wherein said antenna plate received the electromagnetic signal that this no battery index device is sent; The pairing SIGNALS MANAGEMENT device of this antenna plate then notifies other those antenna plate corresponding SIGNALS MANAGEMENT device, and the corresponding SIGNALS MANAGEMENT device of other those antenna plate then can be controlled its pairing antenna plate and stop to launch electromagnetic energy.
5. electronic whiteboard according to claim 4; The antenna plate that it is characterized in that wherein said no battery index device place is received the electromagnetic signal that this no battery index device is sent, and this antenna plate is calculated according to this electromagnetic signal and obtained the position of this no battery index device.
6. the localization method of an electronic whiteboard; Wherein this electronic whiteboard is made up of a plurality of antenna plate and a no battery index device; And each this antenna plate all is provided with the SIGNALS MANAGEMENT device of a correspondence, and wherein each this antenna plate all has a plurality of antenna loops, it is characterized in that this method comprises:
Launch electromagnetic energy simultaneously by those all antenna plate of those SIGNALS MANAGEMENT device controls;
The energy storage by one of them electromagnetic energy that sends of these no those antenna plate of battery index device reception, and send electromagnetic signal by this;
The antenna plate at this no battery index device place receives this electromagnetic signal, and notifies corresponding this no battery index device of SIGNALS MANAGEMENT device of this antenna plate to be positioned on this antenna plate;
By notifying the corresponding SIGNALS MANAGEMENT device of other those antenna plate to stop to send electromagnetic energy to the corresponding SIGNALS MANAGEMENT device of antenna plate that should not have battery index device place; And
Corresponding its pairing antenna plate of SIGNALS MANAGEMENT device control of other those antenna plate stops to send electromagnetic energy.
7. the localization method of electronic whiteboard according to claim 6; It is characterized in that wherein said those all antenna plate launch the electromagnetic energy step simultaneously; Be the mode of sending electromagnetic energy by those SIGNALS MANAGEMENT devices according to opening those antenna loops in the said antenna plate one by one, send electromagnetic energy and control those all antenna plate simultaneously.
8. the localization method of electronic whiteboard according to claim 6; It is characterized in that wherein also comprising a position coordinates calculation procedure; This step by the corresponding SIGNALS MANAGEMENT device of the antenna plate at this no battery index device place according to receive to such an extent that this electromagnetic signal is calculated, and obtain the accurate coordinates of this no battery index device.
9. the localization method of electronic whiteboard according to claim 6 is characterized in that wherein also comprising a notifying process, is ready for sending electromagnetic energy in order to other those antenna plate of notifying contiguous this no battery index device to move the antenna plate at place, back.
10. the localization method of electronic whiteboard according to claim 9; It is characterized in that also comprising a reboot step; On the antenna plate of this no battery index device, remove by original place; Make when this antenna plate does not receive the electromagnetic signal that this no battery index device sends, notify those all SIGNALS MANAGEMENT devices to control those all antenna plate again and send electromagnetic energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101640428A CN101989164B (en) | 2009-08-05 | 2009-08-05 | Electronic white board and positioning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101640428A CN101989164B (en) | 2009-08-05 | 2009-08-05 | Electronic white board and positioning method thereof |
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| Publication Number | Publication Date |
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| CN101989164A CN101989164A (en) | 2011-03-23 |
| CN101989164B true CN101989164B (en) | 2012-07-25 |
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| CN2009101640428A Expired - Fee Related CN101989164B (en) | 2009-08-05 | 2009-08-05 | Electronic white board and positioning method thereof |
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| CN104714712B (en) * | 2013-12-17 | 2018-11-02 | 汉王科技股份有限公司 | A kind of two-sided notepad of electromagnetic type and its control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1506906A (en) * | 2002-12-10 | 2004-06-23 | 天瀚科技股份有限公司 | Digital board system with multiple-channel switch combination circuit control |
| CN1880966A (en) * | 2005-06-14 | 2006-12-20 | 太瀚科技股份有限公司 | Wireless electromagnetic induction system and method for indicating battery level |
-
2009
- 2009-08-05 CN CN2009101640428A patent/CN101989164B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1506906A (en) * | 2002-12-10 | 2004-06-23 | 天瀚科技股份有限公司 | Digital board system with multiple-channel switch combination circuit control |
| CN1880966A (en) * | 2005-06-14 | 2006-12-20 | 太瀚科技股份有限公司 | Wireless electromagnetic induction system and method for indicating battery level |
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| Publication number | Publication date |
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| CN101989164A (en) | 2011-03-23 |
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