JP2008271265A - Peripheral system for wireless projector - Google Patents

Abstract

In a wireless projector-compatible peripheral device system that is connected to a wireless projector via a wireless LAN, a connection to a desired wireless projector can be made using only a simple button and LED emission information without providing a display unit in the actual imaging device. It is an object of the present invention to provide a wireless projector-compatible peripheral device system having a function to be established.
A real image pickup apparatus searches a wireless device having an SSID unique to a wireless projector by using a search button, detects a use state of the searched wireless projector, and outputs the detection result of an LED. The color is displayed, and the user presses the selection button 51 from the emission color information, and establishes a connection with the desired wireless projector 2.
[Selection] Figure 1

Description

  The present invention relates to a wireless projector-compatible peripheral device system that transfers arbitrary image data from a real imaging device to a projector and projects it in a real imaging device and a projector connected via a wireless LAN.

  In recent years, peripheral devices for wireless projectors that rapidly transfer and project images displayed on a personal computer via a network (particularly wireless LAN) to a projector equipped with a wireless LAN function without using an RGB cable have become widespread. Yes.

  A conventional peripheral device system compatible with a wireless projector will be described below.

  Conventionally, a peripheral device system compatible with a wireless projector is known as described in Patent Document 1. A block diagram of the system is shown in FIG.

  In FIG. 10, 100 is an image signal device typified by a personal computer, 200 is a projector equipped with a wireless LAN function, 300 is an arbitrary wireless network, and 400 is a screen that projects an image enlarged and projected from the projector 200.

  A conventional peripheral system for wireless projectors configured as described above will be described.

  The image signal device 100 searches for wireless projectors that can be connected using the wireless network 300 in the presence of a plurality of wireless projectors, and connects the search results on the display unit 110 of the image signal device 100. Display as possible projector list 111.

The user selects “projector 1” from the connectable projector list 111, and selects a desired wireless projector 200 corresponding to “projector 1”, whereby the image signal device 100 and the wireless projector 200 are connected. Establish a connection for.
Japanese Patent Laying-Open No. 2005-208823 (paragraph number “0035”)

  However, in the conventional configuration, when a real imaging device represented by a document camera that does not have a display unit is used as a device connected to the wireless projector, there is no means for displaying the connectable projector list as described above. Since the wireless projector cannot be selected, the user has a problem of being unable to connect to a desired wireless projector.

  In order to solve the above problem, a method of providing a display unit in a real image pickup device is conceivable. However, there is a new problem that the cost can be significantly increased and the design design of the real image pickup device can be restricted.

  In addition, some real image pickup devices have to be operated at a position away from the user, such as a surveillance camera. Even if the real image pickup device itself is provided with a display unit to display a projector list, the user can There was also a problem that it was difficult to see it.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and a wireless projector having a function of establishing a connection with a desired wireless projector using only a simple button and LED emission information without providing a display unit in an actual imaging device. The purpose is to provide a compatible peripheral system.

According to a first aspect of the present invention, a real imaging device having a wireless function that does not have a display unit, and image data captured by the real imaging device is enlarged and projected via an arbitrary wireless network. In a system consisting of a wireless projector,
The real imaging device is:
Imaging means for imaging an arbitrary object, image compression means for compressing image data captured by the imaging means to an arbitrary format, and image data compressed by the image compression means via an arbitrary wireless network First communication means for transmitting to the wireless projector, and first control means for controlling the first communication means to establish a connection with the wireless projector,
The wireless projector is
Second communication means for receiving image data transmitted from the real imaging device via an arbitrary wireless network, and image expansion means for expanding image data received by the second communication means to an arbitrary format The second means for controlling the second communication means and the SSID unique to the wireless projector for establishing a connection between the display means for enlarging and projecting the image data output from the image expansion means and the real imaging device Control means,
The first control means includes
When searching for a desired wireless projector, after detecting that the search button has been pressed, a wireless device having an SSID unique to the wireless projector is searched in an arbitrary wireless channel, and the desired wireless projector exists. In this case, the second control unit is inquired through the second communication unit, the use state of the wireless projector is detected, and the detection result is determined by the emission color or the number of emitted LEDs of the LED provided in the real imaging device. This is a wireless projector-compatible peripheral system characterized by letting the user know, and it is possible to establish a connection with a desired wireless projector with a simple configuration without providing a display unit in the actual imaging device. Have

  The invention according to claim 2 is characterized in that the first control means searches for another wireless projector existing in the same channel when another user is using the searched wireless projector. According to another aspect of the present invention, there is provided a wireless projector-compatible peripheral device system capable of establishing a connection with a desired wireless projector with a simple configuration without providing a display unit in the real imaging device.

  The invention according to claim 3 is characterized in that, when the desired projector does not exist in the searched channel, the first control means switches to another channel and searches for the wireless projector again. The wireless projector-compatible peripheral device system described above has an effect of enabling connection with a desired wireless projector with a simple configuration without providing a display unit in the real imaging device.

  In the invention according to claim 4, when the first control means detects a wireless projector in an unused state and displays its state with an LED, and detects that the selection button has been pressed by the user, 4. The wireless projector-compatible peripheral device system according to claim 1, wherein a command for projecting predetermined image data is transmitted to the wireless projector. Even if a display unit is not provided, the connection with a desired wireless projector can be established with a simple configuration.

  According to a fifth aspect of the invention, the second control means receives a command for projecting predetermined image data transmitted from the real imaging device when another user is using the searched wireless projector. 5. The wireless projector-compatible peripheral device system according to claim 4, wherein the predetermined image data is not projected, and the real imaging device is erroneously connected to a wireless projector other than the desired wireless projector. Even in such a case, the erroneously connected wireless projector has an effect of making it impossible to project unnecessary image data.

  According to the sixth aspect of the present invention, when the second control means receives a connection request from the first control means when an arbitrary password is set in the wireless projector, the password control screen or character input A wireless keyboard-compatible peripheral device system according to any one of claims 1 to 5, wherein a software keyboard screen for projecting is projected from the wireless projector, and a password is previously set for a desired projector. Even when it is set, it has an effect of enabling connection with a desired wireless projector with a simple configuration.

  In the invention according to claim 7, the first control means does not search for any wireless projector when detecting that the storage medium storing the connection information of the wireless projector is inserted in the real imaging device. Further, only a wireless projector having unique information that matches information stored in the storage medium is searched, and the search result is displayed by the light emission color or the light emission number of the LED. The wireless projector-compatible peripheral device system according to any one of Items 5 is provided and has an effect of reliably establishing a connection by searching for a desired wireless projector from information in a storage medium.

  As described above, according to the present invention, when there are a plurality of wireless projectors having the same SSID, it is possible to easily perform a desired wireless operation only with simple button operation and LED emission color or emission number information that can be intuitively understood. An excellent effect that makes it possible to search for a projector can be obtained. Further, since there is no need to provide a display unit typified by a liquid crystal panel in the real image pickup apparatus, an excellent effect can be obtained that a product can be manufactured at a low cost and the design freedom of the real image pickup apparatus is greatly expanded.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

(Embodiment 1)
FIG. 1 is a configuration diagram of a peripheral device system compatible with a wireless projector according to Embodiment 1 of the present invention.

  In FIG. 1, 1 is an actual imaging device represented by a document camera, 2 is a wireless projector, 3 is an arbitrary wireless network that connects the actual imaging device 1 and the wireless projector 2, and 4 is from the wireless projector 2. It is a screen for projecting an enlarged projected image. Reference numeral 50 denotes a search button for searching for a desired wireless projector 2 from the actual imaging device 1, 51 denotes a selection button for selecting the wireless projector 2 searched by the search button 50, and 60 denotes a light emitting diode (hereinafter, referred to as “light emitting diode”). LED)). The LED 60 is composed of two LEDs that emit red and green light, and forms one package.

  FIG. 2 is an internal configuration diagram of the real imaging device 1 and the wireless projector 2.

  In FIG. 2, 11 is an image pickup means for picking up an arbitrary object, 12 is an image compression means for compressing image data picked up by the image pickup means 11 into an arbitrary format typified by JPEG or MPEG, and 13 is The first communication means 14 for transmitting the image data compressed by the image compression means 12 to the wireless projector 2 via an arbitrary wireless network 3 is connected to the wireless projector 2 with respect to the first communication means 13. First control means for performing control to establish a connection, 21 is a second communication means for receiving image data transmitted from the real imaging device 1, and 22 is received by the second communication means 21. Image decompression means 23 for decompressing the image data into an arbitrary format, and display means 23 for enlarging and projecting the image data decompressed by the image decompression means 22 onto the screen 4 24 is a second control means for controlling the second communication means 21 with the wireless projector 2 to establish a connection with the actual imaging apparatus 1 has a unique SSID.

  The operation of the wireless projector-compatible peripheral device system of the present embodiment configured as described above will be described below with reference to the flowchart of FIG.

  First, in order to transfer image data captured by the real imaging device 1 to a desired wireless projector 2 via an arbitrary wireless network 3, the user connects the real imaging device 1 and the wireless projector 2. Need to be established.

  Therefore, the user presses the search button 50 provided in the real imaging device 1 (step S1). The first control unit 14 that has detected that the search button 50 has been pressed instructs the first communication unit 13 to search for a wireless projector having a predetermined SSID.

  Currently, commercially available wireless projectors allow users to easily establish a connection with a desired wireless projector by using application software for connecting to the wireless projector. This is a technology that allows only a wireless projector of the company to be searched by storing an SSID unique to the wireless projector in the application software.

  In this way, the real imaging device 1 searches whether a wireless projector having the same SSID is detected (step S2).

  As an example of a wireless projector search, there is a method of performing a search for each wireless channel. For example, when the wireless system conforms to the IEEE802.11b standard and is used in Japan, since channel 1 to channel 14 are assigned, the real imaging device 1 is first identical within the range of channel 1 in step S2. The wireless projector having the SSID is searched. Of course, in order to shorten the search time, the search may be started from a wireless channel that the wireless projector has as a default value.

  When no wireless projector having the same SSID is detected in step S2, the real imaging device 1 searches for the next wireless channel (step S3).

  In step S3, since the number of wireless channels is finite, if no wireless projector having the same SSID is detected even if all wireless channels are detected, the connection is not displayed as it is (for example, LED 60 is lit in red). And the search may be interrupted.

  When wireless projectors having the same SSID are detected in step S2, the real imaging device 1 inquires the detected wireless projector about the current connection state of the wireless projector.

  Here, when a plurality of wireless projectors are detected, the first control unit 14 selects, for example, the detected wireless projector name or the smallest one in the ABC order of unique information such as a MAC address number, The above inquiry is made to the wireless projector.

  In general, the SSID of a wireless projector is unique to each manufacturer, and a plurality of wireless projectors are delivered to companies and educational institutions in many cases. Thus, wireless projectors having the same SSID are used in this way. Often, multiple units are detected simultaneously.

  The second control means 24 that has received this inquiry information via the second communication means 21 responds with the current state of the wireless projector (step S4).

As an example of information to be responded,
1) No user connection 2) Other user connected 3) In use on input channel (RGB cable input, etc.) other than wireless network. By displaying these states by changing the emission color of the LED 60 (step S5), the user can easily grasp the detected state of the wireless projector (step S6).

  When the LED 60 is mounted with an element having two light emitting diodes in one package, the three modes can be displayed in different colors.

For example, when an element in which a light emitting diode that emits green and red light is used in one package is used,
1) No user connection: Green 2) Other user connection: Orange (green and red light emitted simultaneously)
3) In use on an input channel other than the wireless network: It can be displayed in red and three colors. In step S6, when the emission color of the LED 60 is green, the user can connect to the detected wireless projector.

  On the other hand, in step S6, when the emission color of the LED 60 is different from green, the user confirms that the real imaging device 1 is connected to another wireless projector or the setting state of the desired wireless projector 2 is incorrect. It can be easily grasped.

  Confirmation of the setting state of the wireless projector 2 allows the user to easily grasp what to confirm by confirming the emission color of the LED 60.

For example,
2) While other users are connected ... When orange is displayed, it may be confirmed whether other devices such as a personal computer are still connected to the desired wireless projector 2.

Also,
3) In use on an input channel other than the wireless network... When red is displayed, it may be confirmed whether the input channel of the desired wireless projector 2 is set to the network (wireless) input.

  When these confirmations are made and there is no problem with the settings, it is determined that the wireless projector is connected to another location, and the user presses the search button 50 again (step S7). Receiving the pressed signal, the first control means 14 issues a command to the first communication means 13 to search for another wireless projector in the same wireless channel (step S8).

  In step S8, as another wireless projector search method, there is a method of selecting the wireless projector having the next lowest number in the above-described ABC order.

  Further, in order to ensure that the wireless projector once detected is not detected next time, the first control means 14 may include means for temporarily storing information of the detected wireless projector.

  If the desired wireless projector 2 is detected in step S6, the user presses the selection button 51 to establish a connection with the wireless projector 2 (step S9).

  The first control unit 14 that has detected that the selection button 51 has been pressed projects the wireless projector information display screen 41 on the screen 4 to the wireless projector 2 via the first communication unit 13. Command (step S10).

  As the wireless projector information display screen 41, it is preferable to display the projector name of the wireless projector 2, or unique information of the wireless projector 2 such as a MAC address or an IP address.

  An example of the wireless projector information display screen 41 is shown in the block diagram of the peripheral device system corresponding to the wireless projector in FIG.

In step S10, the emission color of the LED 60 in step S5 is
When orange = other user is connected, that is, when the user accidentally presses the selection button 51 when the real imaging device 1 is connected to another wireless projector, the wireless projector information display screen 41 is projected from the other wireless projector, There arises a problem that the presentation of a person using the wireless projector is disturbed.

  Therefore, in step S10, when the emission color of the LED 60 is orange or red (in use on an input channel other than the wireless network), the first control unit 14 ignores even if the selection button 51 is pressed, or The second control means 24 mounted on the wireless projector ignores the display command of the wireless projector information display screen 41 even if it receives some image data from the wireless projector onto the screen 4. Therefore, it is necessary to devise such that the wireless projector information display screen 41 is not unexpectedly projected on the screen during the presentation.

  In step S10, the user who has confirmed that the wireless projector information display screen 41 is projected from the wireless projector 2 presses the selection button 51 during the period in which the wireless projector information display screen 41 is displayed on the screen 4. Press again (step S11).

The first control unit 14 that has detected that the selection button 51 has been pressed transmits the image data captured by the real imaging device 1 to the wireless projector 2 (step S12).
In step S11, the user is requested to press the selection button 51 again. In an erroneous connection, unnecessary image data is not transferred from the real imaging device 1 to a wireless projector other than the desired wireless projector 2. Because.

  For example, even if the emission color of the LED 60 is green in step S5, the real imaging device 1 may not necessarily be connected to the desired wireless projector 2. This exists when a wireless projector installed at another location is turned on, the input channel is a network (wireless) input, and no one is using it.

  When such a wireless projector is detected, the LED 60 is displayed in green, and whether the user is connected to a desired wireless projector 2 or an unused wireless projector installed elsewhere. Cannot be determined.

  Therefore, as a determination method, there is a method of visually observing whether or not the wireless projector information display screen 41 in step S10 is displayed on the screen 4. From the impatience that the user wants to connect to the desired wireless projector 2 as soon as possible. There is a possibility of pressing the selection button 51 without confirming the wireless projector information display screen 41.

  Even in such a case, if the first control means 14 receives only that the selection button 51 has been pressed only during the period when the wireless projector information display screen 41 is displayed, the user can be sure that the screen 4 is viewed, the possibility of erroneous connection can be greatly reduced.

  In order to make the effect of step S11 more effective, it is desirable that the wireless projector information display screen 41 is projected on the screen 4 for the first time after 1 to 2 seconds after the selection button 51 is pressed in step S9.

  When the wireless projector information display screen 41 is displayed immediately after the selection button 51 is pressed, the user hits the selection button 51 without looking at anything and tries to connect to the wireless projector. The effect cannot be fully exhibited.

  Conversely, if the wireless projector information display screen 41 is not displayed for a while after the selection button 51 is pressed in step S10, the user can misunderstand that the wireless projector information display screen 41 is connected to a wireless projector installed in another location. For this reason, it is not preferable to display the wireless projector information display screen 41 by taking too much time.

  In step S10, the wireless projector information display screen 41 is continuously displayed for about 3 to 5 seconds. If the selection button 51 is not pressed during the display period, the wireless projector information display screen 41 is displayed on the screen 4. It is preferable to erase from above.

  This is because, as described above, a case where a currently unused wireless projector installed in another place is searched is assumed.

  As an example of means for informing the state in which the actual imaging device 1 is searching for an arbitrary wireless projector in step S4, as shown in the configuration diagram of the peripheral device system for wireless projector in FIG. By providing a search state LED 61 connected to and flashing its light emission, the user can be informed of the search state.

  Of course, the same effect can be obtained even if the light emission of the LED 60 described above is blinked. By seeing the blinking of the search status LED 61, the user can easily grasp whether the real imaging device 1 is frozen due to a failure or the like, or is operating normally, and the effect of reducing the psychological burden is obtained. .

  In step S4, when searching for a wireless projector, the desired wireless projector 2 and the actual imaging device 1 are generally arranged close to each other.

  In addition, the search range of the wireless projector and the radio wave intensity for searching for the wireless projector have a certain correlation, and the search range of the wireless projector is narrowed as the radio wave intensity is lower.

  That is, if the radio wave intensity is lowered, it becomes impossible to search for a wireless projector installed far from the location where the user is currently located, so that the search time can be greatly shortened.

  That is, the desired wireless projector 2 can be searched more quickly by reducing the radio field intensity of the actual imaging device 1 only when executing step S4.

  Moreover, it is preferable to return the radio field intensity lowered in step S4 to the original value after the desired wireless projector 2 is detected.

  As described above, according to the present embodiment, when there are a plurality of wireless projectors having the same SSID, a desired wireless projector can be reliably detected only by simple button operation and LED emission color information. It becomes possible.

  In addition, when a desired wireless projector is detected, a wireless projector information display screen can be projected onto the screen by pressing a selection button provided on the actual imaging device, and the user can confirm the projected screen. This makes it possible to establish a connection with a desired wireless projector.

  Furthermore, by providing a means that can project the image data captured from the real imaging device for the first time to the wireless projector by pressing the selection button while the wireless projector information display screen is projected on the screen, it is more reliable. It is possible to establish a connection with a desired wireless projector and prevent erroneous connection.

  In addition, since there is no need to provide a display unit in the real image pickup device, it is possible to manufacture the real image pickup device at a low cost and to further obtain an effect that the degree of freedom in design design is widened.

(Embodiment 2)
FIG. 6 is a configuration diagram of a wireless projector-compatible peripheral device system according to Embodiment 2 of the present invention.

  In FIG. 6, reference numeral 42 is a unique password display screen of the wireless projector 2, 43 is a software keyboard display screen projected from the wireless projector 2, and 52 is an operation button. In addition, the same code | symbol is used about the same structure as Embodiment 1 mentioned above, and description is abbreviate | omitted.

  The operation of the wireless projector-compatible peripheral device system of the present embodiment configured as described above will be described below.

  With the heightened user awareness of security, the user sets a unique password for the wireless projector 2 that can be connected to the network, and the user cannot connect to the desired wireless projector unless the password is entered, or image data A system that is not displayed may be built.

  When dealing with such a system, the real imaging device 1 needs to input a password requested from the wireless projector 2, but if the liquid crystal panel or keyboard is not equipped, it is difficult to input the password.

  Thus, by displaying the password display screen 42 and the software keyboard display screen 43 from the wireless projector 2, the user can obtain the password information requested by the wireless projector 2 from the password display screen 42, and the software keyboard display screen. Any character can be input by operating the operation button 52 while viewing 43.

  An example of the operation button 52 is shown in FIG. As shown in FIG. 7, the configuration of the operation button 52 is preferably provided with up / down / left / right keys and an enter key. Further, a cancel key may be added as the operation button 52.

  Next, an example of a password input method is shown. The user recognizes the password by looking at the password display screen 42 and inputs it using the operation button 52.

  As an input method, the cursor displayed on the software keyboard display screen 43 is moved with the up / down / left / right keys, and the character is fixed by pressing the enter key when the cursor is placed on the desired character. By repeating this operation for the number of characters, a desired password can be input.

  The projection of the password display screen 42 and the software keyboard display screen 43 is desirably displayed after the selection button 51 is pressed in step S10 or step S11. In order to operate the cursor displayed on the software keyboard display screen 43 projected from the wireless projector 2 from the up / down / left / right keys of the operation button 52 mounted on the real imaging device 1, a wireless connection is once established. It is necessary to keep it. Since the wireless connection is not established only by the detection by the wireless search as in step S6, such cursor control cannot be performed.

  As described above, according to the present embodiment, since the wireless projector has the means for projecting the password display screen and the software keyboard display screen, even when a password is set for the wireless projector, the real imaging device can Thus, it is possible to establish a connection with a desired wireless projector only by simple button operation and LED emission color information.

  In addition, since there is no need to provide a display unit in the real image pickup device, it is possible to manufacture the real image pickup device at a low cost and to further obtain an effect that the degree of freedom in design design is widened.

(Embodiment 3)
FIG. 8 is a configuration diagram of a peripheral device system for wireless projector according to the second embodiment of the present invention.

  In FIG. 8, reference numeral 7 denotes a storage medium represented by an SD card or a USB memory. Note that the same reference numerals are used for the same components as those in the above-described embodiment, and the description thereof is omitted.

  The operation of the wireless projector-compatible peripheral device system of the present embodiment configured as described above will be described below with reference to the flowchart of FIG.

  In companies and educational sites, it is common for multiple wireless projectors from the same manufacturer to exist, and it is not uncommon for multiple wireless projectors having the same SSID to be detected. However, from the viewpoint of the user, the wireless projector to be used is often specified.

  When the wireless projector to be used is always specified in this way, the wireless projector search time as in step S2 is very useless. Therefore, in the present embodiment, a method for solving the above problem and reducing the time required for connection with a desired wireless projector 2 will be described.

  The first control unit 14 detects whether or not the storage medium 7 storing the connection information of the desired wireless projector 2 is inserted in the real imaging device 1 (step S13).

  Here, the information to be stored in the storage medium 7 is necessary for establishing a wireless connection such as the SSID, projector name, MAC address, IP address, password, and WEP key of the wireless projector that the user desires to connect to. It is necessary to have all necessary information.

  Although it is necessary for the user to prepare the storage medium 7 storing these pieces of information in advance, it is a very difficult task for a user who is not familiar with IT knowledge.

  Therefore, as a method for storing the information, a desired wireless projector 2 and a personal computer equipped with a wireless function are connected via a wireless LAN, and the connection information is automatically stored in the storage medium 7 from an arbitrary application. The method and the storage medium inserted into the real imaging device 1 by any operation at the time when the desired wireless projector 2 and the real imaging device 1 are connected via the wireless LAN in the steps shown in FIG. 7 includes a means for writing connection information.

  Here, it is necessary to devise a method for making secret data such as a password and a WEP key not easily visible when the storage medium 7 is inserted into a personal computer. For example, a method of creating a hidden file that cannot be seen at all from the Windows (registered trademark) OS, or a method of further encryption using AES or the like when storing such secret information can be assumed.

  By using these methods, a user who is not familiar with IT knowledge can easily store necessary and sufficient connection information in the storage medium 7.

  In step S13, if the storage medium 7 is not inserted into the real imaging device 1 or is inserted but the format of the stored connection information is different, it is determined that there is no connection information for the desired wireless projector 2. The process proceeds to step S2, and the flowchart of FIG. 3 is followed.

  On the other hand, when the storage medium 7 storing the connection information of the desired wireless projector 2 is inserted in the real imaging device 1 in step S13, the real imaging device 1 displays the desired wireless projector 2 according to the connection information. Search is performed (step S14).

  If the desired wireless projector 2 is not detected in step S14, the detection result is displayed in the emission color of the LED 60, and the detection of the wireless projector is stopped (step S15).

  The reason for not searching for another wireless projector in step S15 is that if the connection with a wireless projector other than the desired wireless projector 2 stored in the storage medium 7 is established, the user will be confused.

  Of course, when the desired wireless projector 2 stored in the storage medium 7 is not detected, the process may move to step S2 to search for another wireless projector. In this case, however, the above problem is lurking. .

  When the desired wireless projector 2 is detected in step S14, the first control means 14 detects the state of the wireless projector 2 detected via the first communication means 13 (step S16), and the detection. The completed state is displayed with the emission color of the LED 60 (step S17).

  The user determines whether or not the LED 60 can be used by looking at the emission color of the LED 60 (step S18).

  Even if it cannot be used because it is used by another user or the input channel of the wireless projector 2 is different, the user cannot use it by checking the emission color of the LED 60 as shown as an example in the first embodiment. The cause of this can be easily grasped.

  In step S18, when the desired wireless projector 2 becomes usable, when the user presses the selection button (step S19), a wireless projector information display screen 41 is projected from the wireless projector 2 (step S20). By pressing the selection button 51 again during the period when the projector information display screen 41 is projected (step S21), arbitrary image data captured by the real imaging device 1 is transmitted from the desired wireless projector 2 (step S22). ), Projection becomes possible.

  As described above, according to the present embodiment, a storage medium storing connection information of a desired wireless projector is inserted into the real imaging device 1, and the wireless projector is connected based on the connection information stored in the storage medium. By providing the means for searching, the user can effectively shorten the time for searching for a desired wireless projector.

  Further, by adding a password or WEP key for connecting to the wireless projector to the connection information, there is an effect that the user can manually input each time and quickly connect to a desired wireless projector.

  In each of the above embodiments, the status display of the wireless projector by the LED provided in the actual imaging device is determined by the light emission color of the LED, but this is determined by providing a plurality of LEDs and determining the number of the light emission. It may be.

  Moreover, you may make it discriminate | determine according to the frequency | count of light emission within the predetermined time of one LED.

  In the present invention, an LED is used as a light emitter. However, the present invention is not limited to this. For example, any light emitting element such as a laser diode or an EL (electroluminescence) may be used.

  Further, if the function is changed depending on the button pressing time, the interval, etc., the search button and the selection button can be constituted by one button.

  Further, although the search button and the selection button are provided on the real imaging device, they may be remotely operated by being connected with a cable or provided on a remote controller or the like.

  In this way, even with a real imaging device such as a surveillance camera located at a position away from the user, the status display of the wireless projector can be confirmed and selected.

  The wireless projector-compatible peripheral device system according to the present invention can easily achieve a desired wireless projector only with simple button operation and LED light emission information that can be intuitively understood when there are many wireless projectors having the same SSID. It is useful as a peripheral device system that uses a wireless LAN to connect to a wireless projector that is gradually spreading.

Configuration diagram of wireless projector-compatible peripheral device system according to Embodiment 1 of the present invention Internal configuration diagram of peripheral device system for wireless projector according to embodiment 1 The flowchart which shows operation | movement of the peripheral apparatus system corresponding to a wireless projector in Embodiment 1 The block diagram which shows the other example of the peripheral apparatus system corresponding to a wireless projector in Embodiment 1 The block diagram which shows the other example of the peripheral apparatus system corresponding to a wireless projector in Embodiment 1 Configuration diagram of wireless projector-compatible peripheral device system according to Embodiment 2 of the present invention An example of the operation buttons in the second embodiment FIG. 7 is an internal configuration diagram of a wireless projector-compatible peripheral device system in Embodiment 3 of the present invention The flowchart which shows the operation | movement of the peripheral apparatus system corresponding to a wireless projector in Embodiment 3 Configuration diagram of a conventional peripheral system for wireless projectors

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Real imaging device 2 Wireless projector 3 Arbitrary wireless network 4 Screen 7 Storage medium 11 Imaging means 12 Image compression means 13, 21 Communication means 14, 24 Control means 22 Image expansion means 23 Display means 41 Projector information display screen 42 Password display Screen 43 Software keyboard display screen 50 Search button 51 Selection button 60, 61 LED

Claims (7)

In a system comprising a real imaging device equipped with a wireless function that does not have a display unit, and a wireless projector that enlarges and projects image data captured by the real imaging device via an arbitrary wireless network,
The real imaging device is:
Imaging means for imaging an arbitrary object, image compression means for compressing image data captured by the imaging means to an arbitrary format, and image data compressed by the image compression means via an arbitrary wireless network First communication means for transmitting to the wireless projector, and first control means for controlling the first communication means to establish a connection with the wireless projector,
The wireless projector is
Second communication means for receiving image data transmitted from the real imaging device via an arbitrary wireless network, and image expansion means for expanding image data received by the second communication means to an arbitrary format The second means for controlling the second communication means and the SSID unique to the wireless projector for establishing a connection between the display means for enlarging and projecting the image data output from the image expansion means and the real imaging device Control means,
The first control means includes
When searching for a desired wireless projector, after detecting that the search button has been pressed, a wireless device having an SSID unique to the wireless projector is searched in an arbitrary wireless channel, and the desired wireless projector exists. In this case, the second control means is inquired through the second communication means, the use state of the wireless projector is detected, and the detection result is the emission color or the number of light emission of the light emitting element provided in the real imaging device. Wireless projector-compatible peripheral device system characterized in that the user is informed by The first control means is
2. The wireless projector-compatible peripheral device system according to claim 1, wherein when another user is using the searched wireless projector, the other wireless projector existing in the same channel is searched. The first control means is
2. The wireless projector-compatible peripheral device system according to claim 1, wherein when the desired projector does not exist in the searched channel, the wireless projector is searched again by switching to another channel. The first control means is
After detecting an unused wireless projector and displaying its state on the light emitting element, if it is detected that the selection button has been pressed by the user, a command for projecting predetermined image data is sent to the wireless projector. The wireless projector-compatible peripheral device system according to any one of claims 1 to 3, wherein the wireless projector-compatible peripheral device system transmits. The second control means is
When the other user is using the searched wireless projector, the predetermined image data is not projected even when a command for projecting the predetermined image data transmitted from the real imaging device is received. The peripheral device system corresponding to a wireless projector according to claim 4. The second control means is
When an arbitrary password is set for the wireless projector, when a connection request is received from the first control means, the password screen or a software keyboard screen for character input is projected from the wireless projector. The peripheral device system corresponding to a wireless projector according to any one of claims 1 to 5. The first control means is
When it is detected that the storage medium storing the connection information of the wireless projector is inserted in the real imaging device, the unique information matching the information stored in the storage medium is searched without searching for an arbitrary wireless projector. The wireless projector-compatible peripheral device system according to any one of claims 1 to 5, wherein only the wireless projector having the wireless projector is searched, and the search result is displayed by the emission color or the number of light emission of the light emitting element.

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