CN100576870C - Camera head and camera system - Google Patents
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- CN100576870C CN100576870C CN200710112540A CN200710112540A CN100576870C CN 100576870 C CN100576870 C CN 100576870C CN 200710112540 A CN200710112540 A CN 200710112540A CN 200710112540 A CN200710112540 A CN 200710112540A CN 100576870 C CN100576870 C CN 100576870C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
Camera head of the present invention comprises: the image pickup part (16) of taking subject and view data being exported; Deposit the storage medium (20) of view data; First communication line (30) with the external device communication of obtaining current position data (22); Send the second communication circuit (32) of view data via WAP (wireless access point); And with the corresponding diagram (24) of WAP (wireless access point) with the corresponding registration of the geodata that is provided with described WAP (wireless access point); To retrieve corresponding diagram (24) as the retrieval key parameter from the current position data (22) that external equipment obtains, send the view data that leaves in the storage medium (20) via the WAP (wireless access point) that retrieves, reduce the consumption electric power of transfer of data, improve transmitting efficiency.The invention provides camera head, camera system, recording medium and program.
Description
Technical field
The present invention relates to a kind ofly retrieve and will take camera head, camera system, storage recording medium and the program that good image sends by network to being used to send the communication WAP (wireless access point) (accessspot) of taking good image.
Background technology
In recent years, camera heads such as logarithmic code camera have added various functions, and especially camera head such as portable digital camera also begins to have occurred the additional commodity that WLAN and bluetooth radio communication functions such as (Bluetooth, registered trade marks) are arranged on the market.On the other hand, popularizing of public wireless net is also very fast, and the situation of the WAP (wireless access point) that the public wireless net is set is for example also arranged on the platform of eating house and rail electric car etc.
As long as utilize the infrastructure of the camera head and the public wireless net that have radio communication function, also just can send photographs from the on-the-spot direct WAP (wireless access point) of taking via the public wireless net.By the camera head that network sends, for example there is the Japan Patent spy to drive the camera head that discloses in 2005-135316 communique (patent documentation 1) and No. 3535693 specification of patent (patent documentation 2) as the image that will obtain.
The camera head that discloses in the patent documentation 1 is the execution of controlling the mail transmission according to received-signal strength/state, when received-signal strength is strong, carries out a plurality of mails transmissions and handles, and when the electric wave state is more weak, carries out single mail transmission and handle.
In addition, in patent documentation 2, when the memory margin in digital camera inside reduces to cause the memory field of photographed images not enough, by radio communications such as PHS, the image that is stored in the digital camera is sent to external server, eliminate the view data on the memory that has sent then, thereby save the internal memory of digital camera.
Patent documentation 1: the Japan Patent spy opens the 2005-135316 communique
Patent documentation 2: No. 3535693 specification of patent
As mentioned above, known have under mobile environment a technology of using radio communication to send view data from camera head.Usually, can use exchange agreement to retrieve WAP (wireless access point), this exchange agreement can start wireless communication line and wait for beacon package, or camera head periodically sends searching requirement etc. on one's own initiative.
Yet, the wireless communication line that sends the data of view data degree capacity is compared with bluetooth (registered trade mark) circuit etc. at a high speed, it is big that it consumes electric power, need to connect in advance all the time the power supply of camera head and connect wireless communication line in order to retrieve WAP (wireless access point), power consumption is big like this, battery runs low very much for portable type camera shot equipment, when important snapping Insufficient situation might take place.
Have again, when desire utilizes wireless network to send view data via WAP (wireless access point) after the user takes, the user must search WAP (wireless access point) while moving to the position that can enter WAP (wireless access point), and required for this reason time and labour can't be met under the environment that the power supply of camera head is restricted.
Summary of the invention
The present invention puts forward for solving the existing problem of above-mentioned prior art, the invention provides camera head, camera system, storage medium and the program that can address the above problem.
According to the present invention, preserve the corresponding diagram of positional information and WAP (wireless access point) in advance in camera head inside.On the other hand, utilize the less wireless near field communication means of power consumption, send the current position data of representing with geodatas such as longitude, latitudes to camera head from external device (ED)s such as global positioning system (hereinafter referred to as GPS) receiver or mobile phones.
Register to have in the storage medium of camera head and make the current position corresponding diagram corresponding that receives with the geodata of WAP (wireless access point).Camera head uses the current position data that receive to retrieve corresponding diagram, judges whether the current position data are included in the wireless area of WAP (wireless access point) (cell) scope.When retrieving the WAP (wireless access point) that meets this condition, camera head then attempts connecting this WAP (wireless access point).After having established connection, camera head reads the view data of storage, and sends by network.
That is,, provide a kind of camera head, having comprised according to the present invention:
The image pickup part of taking subject and view data being exported;
Deposit the storage medium of described view data;
First communication line with the external device communication of the current position data of obtaining described camera head;
Send the second communication circuit of described view data via WAP (wireless access point); And
With the corresponding diagram of described WAP (wireless access point) with the corresponding registration of the geodata that is provided with described WAP (wireless access point);
The described current position data that will obtain from described external equipment are retrieved described corresponding diagram as the retrieval key parameter, send the described view data that leaves in the described storage medium via the described WAP (wireless access point) that retrieves.
Described external equipment of the present invention can be global positioning system or mobile phone.Described camera head can utilize described first communication line to obtain described corresponding diagram.And described camera head also can have view data transmission control part, it uses the WAP (wireless access point) effective marker and connects sign, after described WAP (wireless access point) effective marker and described connection sign are set, start described second communication circuit and send described view data, wherein said WAP (wireless access point) effective marker represents that the result for retrieval of described WAP (wireless access point) is that described current position data can insert described WAP (wireless access point), and described connection sign is then represented to have established between described second communication circuit and the described WAP (wireless access point) and is connected.
In addition, described camera head has interface portion, be used to make described second communication circuit with described view data sending with the asynchronous mode of the shooting of described view data, described view data sends setting that control part also can have the synchronous communication of the described interface portion of response or asynchronous communication, detect the control circuit that starts described second communication circuit behind described WAP (wireless access point) effective marker and the described connection sign.And, described camera head also can have zone boundary judgment processing portion, when the result for retrieval of described WAP (wireless access point) is described current position data when being in the zone boundary of described corresponding diagram, start described second communication circuit and make described camera head obtain other corresponding diagram.
According to the present invention, a kind of camera system is provided, comprising:
The camera head of above-mentioned record;
Use wireless near field communication that the external device (ED) of the current position data of described camera head is provided to described camera head;
The big wide area wireless communication of cell range is compared in utilization with described wireless near field communication, receive view data from described camera head, and network is carried out Route Selection (channel selecting, WAP (wireless access point) routing).
According to the present invention, a kind of image sending method is provided, comprising:
Utilize image pickup part to take subject, and leave view data in the storage medium step;
Utilize first communication line to obtain the step of current position data message;
Described current position data as the retrieval key parameter, are retrieved the step by the corresponding diagram that the corresponding registration with the geodata that is provided with described WAP (wireless access point) of WAP (wireless access point) is formed;
Start the second communication circuit and send the step that leaves the described view data in the described storage medium in via the described WAP (wireless access point) that retrieves.
According to the present invention, described first communication line uses and compares the little communication protocol of cell range with described the two or two communication line,
The described step of obtaining the current position data message comprises uses the little communication protocol of described cell range, obtains the step of described current position data from global positioning system or mobile phone.
According to the present invention, start the step that described second communication circuit sends and comprise the step that the use communication protocol bigger than the cell range of described first communication line sends described view data.
In addition, starting the step that described second communication circuit sends also comprises: judge the WAP (wireless access point) effective marker and connect the step of the value of sign, wherein said WAP (wireless access point) effective marker represents that the result for retrieval of described WAP (wireless access point) is that described current position data are in the cell range of described WAP (wireless access point), and described connection sign is then represented to have established between described second communication circuit and the described WAP (wireless access point) and is connected;
After described WAP (wireless access point) effective marker is set, start the step that described second communication circuit begins to set described connection sign;
After described connection sign was set, the step of the transmission sign on that is used to begin described view data communication was sent in the setting of response synchronous communication or asynchronous communication.
According to the present invention, image sending method of the present invention can comprise that also the result for retrieval when described WAP (wireless access point) is described current position data when being in the zone boundary of described corresponding diagram, starts described second communication circuit and makes described camera head obtain the step of other corresponding diagram.
According to the present invention, a kind of storage medium that records the executable program of device is provided, the executable program of described device is used to make camera head to carry out according to the step of above-mentioned each described image sending method.
According to the present invention, provide a kind of executable program of device that camera head is carried out according to the step of image sending method.
Description of drawings
Figure 1 shows that the block diagram of the example that the hardware of camera head constitutes.
Figure 2 shows that summary represents the location diagram of the WAP (wireless access point) of the position of camera head and wireless network.
Figure 3 shows that the example figure of the data structure that corresponding Figure 24 comprised in the storage device of depositing in camera head.
Figure 4 shows that camera head 10 performed data send the flow chart of the example of judgment processing.
Figure 5 shows that the flow chart of the example of WAP (wireless access point) connection processing.
Figure 6 shows that the flow chart of the example of data sending processing.
Figure 7 shows that view data sends the figure of the example of the control circuit that control part comprised.
Figure 8 shows that view data shown in Figure 7 sends the figure of example of the truth table of control part 34.
Figure 9 shows that the figure of the example of the camera system 100 that comprises camera head.
Figure 10 shows that the figure of second example of camera system 100.
Figure 11 shows that the figure of the example of the frame that sends to camera head when using mobile phone as external device (ED).
Symbol description is as follows:
10 is camera head, and 12 is CPU, and 14 is ROM, 16 is image pickup part, and 18 is interface portion, and 20 is storage medium, 22 is the current position data, and 24 is corresponding diagram, and 26 for inserting data, 28 is nonvolatile memory, and 30 is first wireless communication line, and 32 is second wireless communication line, 34 for view data sends control part, and 36 is internal bus, and 40 are the district, 42 is wireless area, and 44 is the border of administrative region, and 46 is WAP (wireless access point), 50 is OR-gate, and 52 is OR-gate, and 54 is AND gate, 100 is camera system, and 102 is public network, and 104 are image maintenance server, 106 is the corresponding diagram server, 110 is personal computer, and 112 is GPS, and 114 is carrier server, 116 is the base station, 118 is mobile phone, and 120 is frame, and 122 for can send demonstration.
Embodiment
Describe the digital camera that the embodiment of the invention relates to reference to the accompanying drawings in detail.In following examples, though to inscape, kind, combination, shape, configuration waits and has done various qualifications relatively,, these only exemplify, and the present invention is not limited thereto.
Fig. 1 is the block diagram of the example that constitutes of the hardware of expression camera head.The camera head 10 of this example constitutes portable sizes such as portable digital camera, is driven by chargeable storage battery or dry cell.Camera head 10 comprises: the image pickup part 16 with the lens drive system that is used to take subject, fast door drive system, CCD etc.; The function of management camera head 10 is also sent the central processing unit (CPU) 12 of the instruction of the processing that is required according to user instruction; The interface portion 18 of the state that is used to accept user's instruction and notify user's camera head 10, setting etc.
Deposit the absolute or relative current position data 22 of camera head 10 in the storage medium 20 and with corresponding Figure 24 of the corresponding registration of WAP (wireless access point), thereby make camera head 10 corresponding with the position relation between the WAP (wireless access point) with position data.In addition, storage medium 20 has also been deposited access data (access data) 26, and these access data 26 are deposited and are useful on the access data that send the various data of view data and setting etc. by WAP (wireless access point).
Insert data and can deposit the IP address of the ftp server that requires corresponding to camera head 10 employed Data Transport Protocols etc., password, user ID etc. in advance.When utilizing agreement such as SMTP to send view data when camera head 10, can deposit the IP address, user name, mail account, addresses of items of mail, password of mail server etc. in advance.These known values are with registrations such as binary forms, frame title, IP title, TCP title etc. are inserted data efficient ground wireless-modulated.
After camera head 10 is obtained view data, view data is transformed to known so far suitable form such as JPEG, MJPEG, JPEG2000, PNG, GIF, TIFF and leaves in the nonvolatile memory 28 from raster image.The user is transformed to view data suitable forms such as binary code such as ASCII and is supplemented to end as the registered data of access data when sending view data.Use the file of Email or File Transfer Protocol to send, the transmission data that generate are sent to the outside of camera head 10.When needs transmit a plurality of view data, a plurality of view data can be merged into a transmission package and transmit.
In addition, also can make a transmission package, be divided into a plurality of transmission package and send at a view data.Be divided into a plurality of transmission package when transmitting, although volume of transmitted data increases, the influence of the loss of the transmission package that the variation of following communications status can be caused is reduced to minimum.When a plurality of view data of transmission, consider connection stability, can be with the suitable manner transmit image data.
In addition, the nonvolatile memory 28 of camera head 10 can constitute rewritable nonvolatile memory, can use flash memory, EEPROM, EPROM etc. are installed.Registration has the installation data of camera head 10, user's setting data that the user sets etc. in the nonvolatile memory 28.Nonvolatile memory 28 responses provide installation data and the user's setting data deposited from the requirement of CPU12 when camera head 10 starts.
In order to communicate by frequency band and the different wireless network of wireless area scope, the camera head 10 of this example has first communication line and second communication circuit.In the preferable example, in order to reduce to minimum to the restriction of carrying of camera head 10, making first communication line is first wireless communication line 30, and making the second communication circuit is second wireless communication line 32 described later.In this example, first wireless communication line 30 is born more short-range data and is sent reception, plays the effect of first communication line that can play a role with less consumption electric power.As first wireless communication line 30, can enumerate the wireless communication line that plays a role with bluetooth compliant that uses that the 2.4GHz frequency band communicates.In addition, in this example, also can use the infrared communication circuit as first wireless communication line 30.As other examples, also can use UWB based on IEEE802.15TG3a.In other examples, as first communication line also can with first wireless communication line 30 and with or replace first wireless communication line 30, will be used as first means of communication by the means of communication that buses such as USB or IEEE1394 are carried out serial communication.Below, to using this example of wireless communication protocol to be elaborated as first means of communication.Yet the function means that are used to start first means of communication also can be respectively applied for the startup of usb driver or IEEE1394 driver etc., can select aptly to connect according to user or the residing specific environment of user.
Second wireless communication line 32 of this example plays the effect of second communication circuit, best example for example is to use the communication protocol by regulations such as IEEE802.11a～11n etc. or IEEE802.16, bear and compare distance with first wireless communication line 30, the wireless area scope is big and at a high speed, large-capacity data sends and receives.Second wireless communication line 32 can be realized view data in pumped (conveying) medium middle and long distance, at a high speed transmission, but it is bigger than first wireless communication line 30 correspondingly to consume electric power, and the electric power life-span of camera head 10 is played bigger influence.In other example, as the second communication circuit can use can wire/wireless the communication line of mixed communication, the data that described communication line can utilize the second communication circuit to send send data by being connected with wired network (local area network (LAN) or wide area network or internet etc.).Below, for convenience of explanation, utilize the example that uses suitable wireless communication protocol to communicate respectively to first communication line and second communication circuit to describe.
The camera head 10 of this example has view data and sends control part 34, be used for carrying out to second wireless communication line 32 sending or receiving view data, before utilizing second wireless communication line, 32 transmission data, the on/off of second wireless communication line 32 controlled in the moment that shooting is good.In addition, view data sends control part 34 and is used to send startup and the transmission sign on that data send the second required wireless communication line, supervision is left the WAP (wireless access point) effective marker in storage medium 20 grades in and is connected sign etc., view data transmission efficiently under the leading subscriber specified requirements.These each function treatment portions are interconnected by internal bus 36, and the transmission of carrying out data receives.In addition, each function treatment portion shown in Figure 1 can integratedly be installed on the special-purpose chip such as ASIC.
The camera head 10 of this example is carried into by the user and the place that the user wants the subject of taking occurs, and during this period, obtains power supply from power supplys such as dry cell or storage batterys, and power consumption is restricted.On the other hand, camera head 10 is in mobile environment, in order to insert public networks such as internet and use wireless environment.In wireless environment, receive with the transmission by searching requirement/search response etc. between the WAP (wireless access point) and to establish being connected between camera head 10 and the WAP (wireless access point), camera head 10 sends data then.
At this moment, camera head 10 is because its original function is to take subject, if often send searching requirement or camera head 10 becomes the state that receives beacon package of waiting for to WAP (wireless access point), then moment of required photography sometimes the surplus of dry cell or storage battery become insufficient.Therefore, concerning camera head 10, preferably can be used for WAP (wireless access point) between establish and to be connected the electric power that is consumed and to be reduced to minimum.
Fig. 2 is the figure of the position relation of the summary WAP (wireless access point) of representing the position of camera head 10 and wireless network.The a plurality of WAP (wireless access point) 46 that are arranged in the regulation zone 40 and the border 44 of administrative region in Fig. 2, have been marked simultaneously.Each WAP (wireless access point) 46 constitutes wireless area 42 corresponding to the specification of employed WLAN, be in wireless area 42 in camera head 10 between establish and be connected.
Among Fig. 2 camera head 10 illustrative positions are represented with P1 and P2.When camera head 10 was in position P1, camera head 10 was not in wireless area 42 scopes of any WAP (wireless access point) 46, can't arrive from the beacon package of WAP (wireless access point) 46.Even send searching requirement from camera head 10, any WAP (wireless access point) all can't receive searching requirement.At this moment, send beacon package or continue to wait for beacon package as if camera head 10 continuation, the camera head 10 that will unrestrainedly give up is used for the electric power of original purpose.
On the other hand, when camera head 10 was in position P2, the position of camera head 10 was in the wireless area of WAP (wireless access point) 46D and WAP (wireless access point) 46F, can with previous WAP (wireless access point) 46D that has established handshaking or 46F between establish and be connected.In this example, not to determine whether being in the wireless area scope of WAP (wireless access point) 46, and be to use the position data that corresponding diagram contrast external device (ED) provides to camera head 10 and the position of WAP (wireless access point) 46 to decide by send receiving searching requirement or beacon package.
Fig. 3 is the example of the data structure that corresponding Figure 24 comprised deposited in the storage medium 20 of camera head 10 of this example of expression.Pre-determined when going out the destination the user, before going out, via networks such as internet corresponding Figure 24 shown in Figure 3 is downloaded in the personal computer, can utilize buses such as USB or IEEE1394 to leave in the storage medium 20 from the personal computer that is configured in the own home.In addition, in other examples, the user also can start second wireless communication line 32 in the destination of going out, and corresponding Figure 24 of this destination of going out is left in the storage medium 20.Have, in this example, can utilize portable communication devices such as mobile phone, PDA to download corresponding diagram in advance, camera head 10 uses first wireless communication line 30 to obtain corresponding diagram by short-range communication from mobile phone or PDA etc.
In the example of corresponding Figure 24 shown in Figure 3, input has the discre value of existing WAP (wireless access point) 46 in each lane place (field) of dividing by the longitude and the latitude of the destination of going out.For example, in ° 80 minutes the lane place 24a of ° 90 minutes～de, having discre value is the WAP (wireless access point) 46 of D, E east longitude abc ° of 20 minutes～east longitude abc ° of 30 minutes, north latitude de.In this example, the scope of lane place 24a is set at the size less than wireless area 42, as long as therefore can find WAP (wireless access point) 46 in the lane place 24a of corresponding Figure 24, just can insert the WAP (wireless access point) 46 that is found reliably.
On the other hand, the current position data of camera head 10 are utilized the data that obtained by global positioning system (GPS) or mobile phone etc.Want when camera head 10 sends data the user, in advance and utilize first wireless communication line 30 with the current position data of low consumption power acquisition camera head 10 and leave in the storage medium 20 between vehicle-mounted type GPS or portable GPS or the mobile phone etc.In addition, when using mobile phone, the position of the position data of the camera head of obtaining 10 base station that to be mobile phones can insert in this moment.
In addition, in other examples, can have zone boundary judgment processing portion, by the current position data of contrast camera head 10 stored corresponding Figure 24 and camera head 10, judge whether camera head 10 was in the lane place (representing with oblique line among Fig. 3) of borderline region of corresponding diagram of maintenance in this moment.Zone boundary judgment processing portion is provided as the module that leaves the control program in the ROM14 in, and the CPU12 reading control program is installed to be the function treatment portion in the camera head 10.When judgment processing portion in zone boundary is judged as the current position data when being included in the lane place corresponding with the zone boundary of corresponding Figure 24, camera head 10 starts second wireless communication line 32 and sends data, can obtain the corresponding diagram of adjacent areas.
Fig. 4 is the flow chart that the camera head 10 performed data of this example send judgment processing.Processing shown in Figure 4 is from the moment of the energized of step S100, at step S101, starts between first wireless communication line 30 and the external device (ED) and is connected.At step S102, camera head 10 judges whether to have obtained the current position data that comprise longitude, latitude from external device (ED).When step S102 be judged as can't and external device (ED) between when obtaining position data (no), the processing of repeating step S102 is till obtaining the current position data.When step S102 has obtained position data (yes), enter step S103, judge whether to have registered corresponding Figure 24.
When step S103 be judged as corresponding diagram when not leaving in the storage medium 20 (no), change processing over to step S107, start second wireless communication line 32, download the new corresponding diagram corresponding with the current position data that obtain from external device (ED), upgrade corresponding diagram.
When step S103 be judged as corresponding diagram when registered (yes), at step S104, the WAP (wireless access point) in the district corresponding in the retrieval corresponding diagram with the current position data.Use the result for retrieval of step S104, whether corresponding in step S105 contrast with the district of the zone boundary of corresponding diagram.At step S106, are (yes) when being equivalent to the district of zone boundary of corresponding diagram when being judged as the current position data, send data at step S107 force start second wireless communication line 32, obtain new corresponding diagram, upgrade corresponding diagram.After having upgraded corresponding diagram, disconnect second wireless communication line 32, end process.
And when not registering corresponding diagram, can only during downloading corresponding diagram, send setting or the searching requirement of wait from the beacon package of WAP (wireless access point).In the SD of mobile phone card etc., deposit or download corresponding diagram in advance, also can utilize infrared communication or storage medium is inserted and read in the grooving of camera head 10 etc., prepare corresponding diagram.
If step S106 be judged as the current position data not near the zone boundary at corresponding Figure 24 the time (no), then there is no need to upgrade again corresponding diagram, enter following processing by the A point.
Figure 5 shows that the flow chart of the example of WAP (wireless access point) connection processing.WAP (wireless access point) connection processing shown in Figure 5 is the contrast that begins corresponding diagram and current position data at step S200.Judge at step S201 whether the current position data are in the registration location district of WAP (wireless access point).When the judged result of step S201 is (yes) in the registration location district in WAP (wireless access point) the time for the current position data, at step S202 setting wireless access point effective marker, start second wireless communication line at step S203, the WAP (wireless access point) that is set in corresponding diagram is sent searching requirement, establish connection.At step S204, will establish this situation of connection and inform interface portion 18, and further set the connection sign that has been used to represent to establish connection.Behind step S204, handle the data sending processing that enters the obtained view data of camera head from the B point.
On the other hand, when being judged as the current position data at step S201 not in the registration location district in WAP (wireless access point) the time (no), change processing over to step S206, send the notice that does not have WAP (wireless access point), continue to obtain new current position data from external device (ED) at step S205 to interface portion 18.After this, change processing over to step S200, the processing of repeating step S200, step S201, step S206, step S205.In this example, retrieval by corresponding diagram, as long as the current position data are not corresponding with the registration location of WAP (wireless access point), just do not start the second big wireless communication line 32 of power consumption, have only when being judged as and just connect second wireless communication line 32 can send data the time.Therefore, needn't make the second big wireless communication line of power consumption often be in wait state, can improve the useful life of dry cell or storage battery.
Fig. 6 is the flow chart of the example of the data sending processing carried out later at the B of Fig. 5 point.In this example, data send can be by the operation of user to mode initialization rotating disk etc., can switch to set between the synchronized transmission of the obtained view data of camera head 10 or asynchronous transmission.Data transmission instruction is pushed shutter release button or pressing data transmission button etc. by the user and is generated.
In addition, in this example, the switching of sending mode can be carried out the setting of model selection rotating disk by the user, and this model selection rotating disk can clearly be specified synchronous communication or asynchronous communication or as the background communication of an example of asynchronous communication.Be subjected to the view data that data send instruction and when the transmission processing of view data finishes, end, with for example, deposit in earlier/first taking-up form is registered in the wait matrix in the storage medium that is made of SDRAM etc. or the nonvolatile memory 28 etc.
Send the instruction except send data that button etc. generated by user's pressing data, the transmission of view data is handled begins also to send the transmission sign on that control part 34 generated by view data and carries out.After having set the WAP (wireless access point) effective marker, connecting sign, send sign on and be sent to CPU12.After CPU12 receives data transmission instruction, read and insert data 26.After this, the view data discre value of waiting in the matrix is left in retrieval in, reads this view data from nonvolatile memory 28, after having carried out suitable conversion process, appends to the end of inserting data, makes transmission package.After this, CPU12 is sent to second wireless communication line with the transmission package that generates, and is sent to WAP (wireless access point) according to the corresponding communication agreement.
The view data of this example sends control part 34, under the state that main power source is connected, or with the backstage transmission mode, also is driven with first wireless communication line under the state that the function beyond the function relevant with communication disconnects.Therefore, camera head 10 can be with minimal power consumption retrieval WAP (wireless access point), the state variation of monitoring wireless access point effective marker and connection sign.
In processing shown in Figure 6, judge at step S301 whether the WAP (wireless access point) effective marker is set.If when the WAP (wireless access point) effective marker is not set (no), repeat above-mentioned judgement and obtain result for certain up to the processing of step S301.When step S301 be judged as the WAP (wireless access point) effective marker when having set (yes) carry out WAP (wireless access point) connection processing shown in Figure 5 at step S302.
Judge to connect sign at step S303 and whether set,, send at step S304 and begin to send instruction, start second wireless communication line and send view data when being judged as (yes) when connecting sign and having set.In addition, if be judged as when connecting sign and not setting at step S303, change S301 once more over to branch carried out in processing, begin reprocessing once more from the judgement of WAP (wireless access point) effective marker, reprocessing up to etc. till the transmission processing of view data to be sent finishes.
Figure 7 shows that view data sends the figure of the example of the control circuit that control part comprised.Among Fig. 7, " AS_ENB " is the data of having represented to set the WAP (wireless access point) effective marker, being asserted the occasion of (assert), sets corresponding to the WAP (wireless access point) effective marker.
" CO_ENB " is that expression connects the data that sign has been set, as " CO_ENB " when obtaining asserting, sets corresponding to connecting sign.
In addition, " SYNC_ENB " sends the data that the user utilizes the synchronous transmission instruction that mode initialization rotating disk etc. sets, and " SYNC_ENB " sends button etc. and send data and send instruction by pushing shutter release button or pressing data corresponding to the user.When synchronized transmission, when receiving data transmission instruction, assert " SYNC_ENB ", carry out sending handling of sign on.In this example, because of send sign on send reset before SYNC_ENB be latched, after this when carrying out the background communication of asynchronous transmission, utilized.
In addition, regulate the user and assert " BCK_ENB " when model selection rotating disk etc. has been selected asynchronous transmission.Asynchronous transmission is following sending mode: before camera head 10 is judged as the moment that can send data, will be left in advance by the view data that camera head 10 gets access in the nonvolatile memory 28, and send being judged as in the time of can sending.For asynchronous transmission, after obtaining the view data that will send, just the view data that obtains is left in the nonvolatile memory 28, simultaneously, the discre value of the view data of correspondence is registered in waits in the matrix, in the moment that can send data, from second wireless communication line, 32 transmit image data.
In addition, in asynchronous transmission, be set with the backstage sending mode as an one example.The backstage sending mode is the state of in the asynchronous transmission pattern function portion beyond the required function portion of communication process being stopped power supply, and is the pattern of asynchronous execution transfer of data.That is, in the asynchronous transmission pattern, confirming that the moment that can send data automatically sends, transmitting time is common in this.Yet, in the sending mode of backstage,, can reduce electric power consumption with the irrelevant all akinesias of function treatment portion of communication function.
Therefore, " BCK_ENB " is used as and comprises the command signal of background communication pattern in interior asynchronous communication.Before asynchronous transmission pattern or backstage sending mode are removed, or identical, sending and latching " BCK_ENB " signal before resetting because of sending sign on, the beginning that sends with the control view data with " SYNC_ENB ".
" 2nd_ENB " is the start command signal that starts second wireless communication line 32, and available stand-by power supply was accepted power supply when " Vc " represented camera head 10 just from main power source or power supply disconnection.
Control circuit shown in Figure 7 is further described.The square frame A of Fig. 7 is the circuit block that indication second wireless communication line 32 starts, and is corresponding and assert that the WAP (wireless access point) effective marker sets the connection protocol of indication beginning second wireless communication line.When the user specified synchronized transmission, square frame B was used for sending instruction with user's data synchronously to send the circuit block that sends sign on.Among the circuit block B, when sending instruction, user generated data asserts the transmission sign on of OR-gate 50, after the communication of second wireless communication line 32 is ready to complete, and response therewith, the transmission of carries out image data.Even the user sends data and sends instruction, if the communication of second wireless communication line 32 prepares not finish, can not send the transmission sign on yet, before beginning the backstage transmission automatically, leave in the nonvolatile memory 28.
Square frame C be corresponding to the user clearly do not specify synchronized transmission but specify the backstage send can the time circuit block.In example shown in Figure 7, when the user does not specify the backstage to send, do not assert SYNC_ENB, as LOW.On the other hand, in square frame C, in SYNC_ENB and the BCK_ENB input OR-gate 52.
At square frame C, when sending backstage transmission instruction, assert the data that " AS_ENB " that expression WAP (wireless access point) effective marker has been set and expression connect successful " CO_ENB " simultaneously, in SYNC_ENB or BCK_ENB any one asserted, then the output of the transmission sign on of OR-gate 50 is asserted to HIGH, the transmission of beginning view data.
SYNC_ENB when last user sends data transmission instruction is by OR-gate 52 input AND gates 54.Therefore, failed or user when clearly indicating the backstage to send although send in the customer requirements synchronous communication, square frame C produces response and sends the transmission sign on these situations.Sending the moment that sends sign on, the SYNC_ENB that is latching is reset.In addition, though the signal that the user specifies asynchronous communication or backstage to send be BCK_ENB send send sign on after, before the user removes setting, also can keep the state of asserting.
In addition, in this example, also can respond the transmission sign on, view data that will be corresponding with being registered in the discre value of waiting for the view data in the matrix with deposit in earlier/first taking-up mode reads, after will being registered in all images data of waiting in the matrix and all sending, response and the value of " BCK_ENB " is resetted therewith.
Fig. 8 is the figure of the example of the expression view data shown in Figure 7 truth table that sends control part 34.In truth table shown in Figure 8, expression is in these four kinds of states of AS_ENB=0 U CO_ENB=0 of the state that the position that can't insert WAP (wireless access point) 46 or expression do not connecting no matter how the state of SYNC_ENB and BCK_ENB does not assert the transmission commencing signal, has therefore done omission for convenience of explanation.
In asynchronous communication, asserting SYNC_ENB or BCK_ENB, and just sending the transmission sign on when asserting AS_ENB and CO_ENB simultaneously.In addition, in the sending mode of backstage, assert stop after " BCK_ENB " to communication function function associated portion beyond function portion power supply.
As shown in Figure 8, when the user clearly specified asynchronous communication synchronized transmission failure when (in comprising that the backstage is sent in) and once back camera head 10 to become can to send data, control circuit shown in Figure 7 was carried out the transmission of the data of recovering designated transmission last time.
Promptly, so long as the user wishes the view data that sends, the camera head 10 of this example is no matter be synchronously or asynchronous transmission, becoming under the state that can send data, camera head 10 can start the transmission that second wireless communication line 32 that is used to send data is carried out data as required, can save electric power and send view data efficiently.In this example, after data transmission and processing, ACK information from the notification data transmission success/failure of mail server or ftp server is judged, after receiving the ACK information of transfer of data success, leave out the view data that leaves in the nonvolatile memory 28, so not only can guarantee the preservation of data but also can carry out management the memory of camera head 10, therefore, comparatively desirable.
Fig. 9 is the figure of example of the camera system 100 of the expression camera head 10 that comprises this example.In this example, camera system 100 comprises: public networks 102 such as public telephone network, ISDN, internet; The figure that is connected in public network 102 keeps server 104; Camera head 10.
It for example can be mail server or the ftp server that various provider prepares that figure keeps server 104.In addition, in this example, figure keeps the ftp server of user management of server 104.
In addition, provide the provider of WLAN service or corresponding diagram server 106 that map company provides to be connected with public network 102.The user is when carrying camera head 10 shooting subjects, pre-determining when going out the destination, use personal computer 110 to insert the corresponding diagram server, download this regional corresponding diagram in advance, can utilize buses such as USB or IEEE1394 to leave in the camera head 10.
On the other hand, the user also can use vehicle-mounted type or portable GPS112 as external device (ED) to obtain the current position data in the destination of going out.When the user wished to send the data that photograph, camera head 10 used first wireless communication line that utilizes the wireless near field communication agreement to obtain the current position data in the residing zone of user from GPS112.In desirable example, first wireless communication line uses corresponding to the little for example bluetooth radio communications such as (registered trade marks) of short-range power consumption.In addition, also can enumerate IEEE802.15 etc. as the wireless near field communication agreement of same degree.In addition, in other examples, also can use the infrared communication circuit as first wireless communication line 30.
When the WAP (wireless access point) effective marker and after connecting the sign setting, the user makes interface portion 18 demonstrate on the LCDs of camera head 10 this response and can send and shows 122.Under the state of having specified synchronized transmission, the user can confirm to send on the basis of demonstration 122, by the next relative figure maintenance of the instruction server 104 carries out image data synchronization transmission of data such as " data transmission button " transmission.
In addition, when the user wished asynchronous transmission (backstage transmission), the user needn't take notice of especially can send demonstration 122, takes and view data is left in the nonvolatile memory 28.When carrying out asynchronous communication, needn't start second wireless communication line at this stage camera head 10.Then, the user presses data and sends button (assert SYNC_ENB) or operator scheme and set rotating disk and set " backstage sending mode " (assert BCK_ENB), then camera head 10 automatically begins the transmission processing of view data in the moment that can carry out data communication, disconnects second wireless communication line 32 in the moment that sends the processing end.
On the other hand, when transmit image data, camera head 10 starts second wireless communication line 32 that uses the wide area wireless communication agreement.As long as with first wireless communication line, 30 employed wireless near field communication agreements mutually specific energy big wireless area is provided, the wide area wireless communication agreement can be utilized by the agreement of IEEE802.11 regulation or so-called wireless MAN (the Metropolitan AreaNetwork: metropolitan area network) etc. that stipulated by IEEE802.16.In this example, only in the needs transfer of data, start second wireless communication line, and can under the state of stopping using other function portions, carry out the backstage and send, therefore, also can improve connectivity with wide-area wireless LAN from the angle of power consumption.
In this example, when the user specifies synchronized transmission, because of communication conditions instability etc. take place with WAP (wireless access point) 46 between situation such as can't be connected the time, the user is as long as set the backstage sending mode, be stored in when images that should send in the camera head 10 can send on the backstage and send, can improve the transmitting efficiency of view data.
On the other hand, when the user specified the backstage sending mode, camera head 10 was stopped power supply except being used to carry out the required handling part of radio communication.In the sending mode of backstage, camera head 10 starts first wireless communication line 30, and continues to carry out obtaining of current position data between the GPS.Second wireless communication line starts according to its result, finishes the asynchronous transmission (backstage transmission) that figure is kept the view data of server 104.
Figure 10 is the figure of second example of expression camera system 100.In example shown in Figure 10, utilize bluetooth (registered trade mark) or infrared communication etc. to obtain the current position data between camera head 10 and the mobile phone 118 as the external device (ED) use.In addition, carry out digital wireless communication with the 900MHz frequency range between mobile phone 118 and the base station 116.The carrier server 114 of the provider of mobile phone 118 by mobile phone service is provided inserts networks such as public telephone network, ISDN or internet.In this example, when mobile phone 118 or PDA support suitable telecommunication agreement, can download corresponding diagram by mobile phone 118 or PDA from corresponding diagram server 106, use short-range communication to utilize for camera head 10.
Figure 11 is the example that sends to the frame 120 of camera head 10 when using mobile phone 118 as external device (ED) in this example of expression.As shown in figure 11, from the frame 120 that mobile phone 118 sends, contain camera head 10 receiver address 120a, send the kind of address 120b, expression frame frame type 120c, comprise Payload (pay-load) 120d of current position data.
In Payload 120d, the current position data of the base station of mobile phone 118 can be retrieved corresponding Figure 24 that camera head 10 is kept with longitude data and the record of latitude data.In addition, when using mobile phone 118, also can not use corresponding Figure 24 shown in Figure 3, and be to use the base station and be arranged on the corresponding diagram of the form that near the WAP (wireless access point) the base station is mapped as external device (ED).
In addition, the above-mentioned functions of this example can utilize the program of being carried out by the made device of records such as assembler language, C language supervisor language to realize, this program can leave in the readable storage medium of device to be announced.
So far, the invention has been described to utilize example, but the present invention is not limited to above-mentioned example, in the scope that those skilled in the art can be expected, can make other examples, replenish, changes such as change, deletion, no matter be which kind of form, as long as play effect of the present invention, effect, then be included in the scope of the present invention.
Claims (12)
1. a camera head is characterized in that, comprising:
The image pickup part of taking subject and view data being exported;
Deposit the storage medium of described view data;
First communication line with the external device communication of the current position data of obtaining described camera head;
Send the second communication circuit of described view data via WAP (wireless access point); And
With the corresponding diagram of described WAP (wireless access point) with the corresponding registration of the geodata that is provided with described WAP (wireless access point);
To retrieve described corresponding diagram as the retrieval key parameter from the described current position data that described external equipment obtains, send the described view data that leaves in the described storage medium via the described WAP (wireless access point) that retrieves.
2. camera head as claimed in claim 1 is characterized in that, described external equipment is global positioning system or mobile phone.
3. camera head as claimed in claim 1 is characterized in that, described camera head utilizes described first communication line to obtain described corresponding diagram.
4. camera head as claimed in claim 1, it is characterized in that, have view data and send control part, it uses the WAP (wireless access point) effective marker and connects sign, when described WAP (wireless access point) effective marker and described connection sign are set, start described second communication circuit and send described view data, wherein said WAP (wireless access point) effective marker represents that the result for retrieval of described WAP (wireless access point) is: described current position data can insert described WAP (wireless access point), and described connection sign is then represented to have established between described second communication circuit and the described WAP (wireless access point) and is connected.
5. camera head as claimed in claim 4, it is characterized in that, also have and be used to make described second communication circuit the interface portion of described view data to send with the asynchronous mode of the shooting of described view data, described view data sends control part and has control circuit, described control circuit responds the synchronous communication of described interface portion or the setting of asynchronous communication, after detecting the setting of described WAP (wireless access point) effective marker and described connection sign, start described second communication circuit.
6. as each described camera head in the claim 1 to 5, it is characterized in that, described camera head has zone boundary judgment processing portion, when the result for retrieval of described WAP (wireless access point) is described current position data when being in the zone boundary of described corresponding diagram, start described second communication circuit and make described camera head obtain other corresponding diagram.
7. a camera system is characterized in that, comprising:
Each described camera head in the claim 1 to 6;
Use wireless near field communication that the external device (ED) of the current position data of described camera head is provided to described camera head;
The big wide area wireless communication of cell range is compared in utilization with described wireless near field communication, receive view data from described camera head, and network is carried out the WAP (wireless access point) of Route Selection.
8. an image sending method is characterized in that, comprising:
Utilize image pickup part to take subject and leave view data in the storage medium step;
Utilize first communication line to obtain the step of current position data message;
As the retrieval key parameter, retrieval is with the corresponding step of registering the corresponding diagram that forms with the geodata that is provided with described WAP (wireless access point) of WAP (wireless access point) with described current position data;
Start the second communication circuit, and send the step that leaves the described view data in the described storage medium in via the described WAP (wireless access point) that retrieves.
9. image sending method as claimed in claim 8 is characterized in that, described first communication line uses and compares the little communication protocol of cell range with described second communication circuit,
The described step of obtaining the current position data message comprises: use the little communication protocol of described cell range, obtain the step of described current position data from global positioning system or mobile phone.
10. image sending method as claimed in claim 8 is characterized in that, starts the step that described second communication circuit sends and comprises: use the communication protocol bigger than the cell range of described first communication line to send the step of described view data.
11. image sending method as claimed in claim 10 is characterized in that, starts the step that described second communication circuit sends and also comprises:
Judge the step of the value of WAP (wireless access point) effective marker and connection sign, wherein said WAP (wireless access point) effective marker represents that the result for retrieval of described WAP (wireless access point) is: described current position data are in the cell range of described WAP (wireless access point), and described connection sign is then represented to have established between described second communication circuit and the described WAP (wireless access point) and is connected;
When described WAP (wireless access point) effective marker is set, start the step that described second communication circuit begins to set described connection sign;
When described connection sign was set, the step of the transmission sign on that is used to begin described view data communication was sent in the setting of response synchronous communication or asynchronous communication.
12. as each described image sending method in the claim 8 to 11, it is characterized in that, may further comprise the steps: when the result for retrieval of described WAP (wireless access point) is, when described current position data are in the zone boundary of described corresponding diagram, start described second communication circuit, make camera head obtain the step of other corresponding diagram.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006172251 | 2006-06-22 | ||
| JP2006172251 | 2006-06-22 | ||
| JP2007148110 | 2007-06-04 |
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| CN101094287A CN101094287A (en) | 2007-12-26 |
| CN100576870C true CN100576870C (en) | 2009-12-30 |
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| CN200710112540A Expired - Fee Related CN100576870C (en) | 2006-06-22 | 2007-06-20 | Camera head and camera system |
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| JP5203258B2 (en) * | 2009-03-04 | 2013-06-05 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
| CN102573003A (en) * | 2010-12-22 | 2012-07-11 | 国民技术股份有限公司 | Instant communication system, access equipment and communication equipment |
| JP5790218B2 (en) * | 2011-07-11 | 2015-10-07 | ソニー株式会社 | Communication device and communication control method |
| JP2015005820A (en) * | 2013-06-19 | 2015-01-08 | 株式会社リコー | Wireless lan connection method, wireless lan connection device and storage medium |
| JP7097694B2 (en) | 2017-12-26 | 2022-07-08 | キヤノン株式会社 | Communication equipment and its control method |
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