JP2000023124A - Radio communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To release inconvenience when a person who photographs and operates at a monitor part is separated from a person who is photographed as a subject by giving priority to a control signal from a radio control means which has a high transfer rate of a control signal when control signals by plural radios compete. SOLUTION: An output from a light reception unit for light receiving a control signal from an infrared ray remote control device 105 is inputted to a control part. The control part has a reception control signal from a PHS telephone 104 from a modem part 102 inputted. The device is constituted so that control is possible by plural control means by a radio as in the PHS telephone 104 and the infrared ray remote control device 105 such as these. By having the control part operate, the control signal received by the PHS telephone 104 of a high transfer rate is given priority when the control signal from the monitor part where control of a camera unit 101 is possible by the PHS telephone 104 and the control signal from the infrared ray remote control device 105 compete with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a radio communication device,
In particular, the present invention relates to wireless communication means between a camera unit and a monitor unit.

[0002]

2. Description of the Related Art In recent years, as a wireless communication technology with a remote place,
Simple mobile phone system (PHS; Personal Handyphon)
e System) and spread spectrum communication are increasing year by year. Also, using those wireless communication technologies,
A configuration for receiving image information or the like at a remote place has been proposed.

FIG. 5 shows an example of a configuration diagram of a conventional communication system when the PHS is used as a wireless communication means. 5, reference numeral 501 denotes a camera unit (camcorder) as image input means; 502, a modem unit to be described later; 503, a cable connecting the modem unit 502 and the PHS telephone 504;
04, 505 are PHS telephones (devices), 506 is PHS telephones
A cable for connecting the telephone 505 and a monitor unit 507, which will be described later, includes various operation keys for restoring the image and audio signals from the received PHS data, outputting the signals to the monitor, and operating the zoom and the like of the camera unit 501. Equipped with control signals corresponding to each control PHS telephone 505
This is a monitor unit that converts the data into data for use in output.
Some monitor units 507 can record image and audio data on a recording medium such as a magnetic tape.

FIG. 6 shows a conventional modem section 502 described above.
FIG. 2 is a block diagram showing an internal configuration of the device. In FIG. 6, 0
61, an image input unit for A / D converting an image signal;
Is a digital image compression unit for compressing a digitized image signal, 063 is an audio input unit for A / D converting an audio signal, 064 is a digital audio compression unit for compressing a digitized audio signal, and 065 is an input. A PHS digital data converter 066 for converting the input image and audio signals into PHS digital data defined by a common standard is a connector for connecting to an external PHS telephone.

[0005] Reference numeral 067 denotes a PHS reception data restoration unit for restoring control data of the camera unit 501 from data received by the PHS telephone 505. Reference numeral 068 denotes a control signal output unit for outputting the restored control data to the camera unit 501. It is. Reference numeral 069 denotes a control unit such as a microcomputer for controlling these blocks.

[0006] With the above configuration, the camera unit 5
01 and the PHS phone 504
Monitor unit 50 at a remote location via
7, the PHS phone 505 receives a zoom control and panning control signal of the camera unit 501 while watching the image on the monitor unit 507, and the remote control operation of the camera unit 501 can be performed.

[0007]

However, the above conventional example has the following problems. That is, since there is only one means for wirelessly controlling the camera unit 501, when a person who is photographing and operating with the monitor unit 507 is separated from a person who is being photographed as a subject, the subject is There is a problem that the unit 501 cannot be operated.

For example, using a conventional system of this type,
When performing a golf form check or the like alone, if the monitor unit 507 is in the immediate vicinity of himself / herself, it will hinder the play, so the monitor unit 507 will be placed some distance away. In such a case, when framing or recording is started or stopped, the user must go to the place where the monitor unit 507 is installed and operate each time, which is inconvenient.

The present invention has been made in view of the above situation, and has as its object to provide means for solving the above inconvenience.

[0010]

SUMMARY OF THE INVENTION Therefore, the present invention is to achieve the above object by providing a wireless communication means described in any of the following items (1) to (3). is there.

(1) There are a plurality of wireless control means and a controlled part controlled by the control means. When the plurality of wireless control signals compete with each other, the transfer rate of the control signal is reduced. A wireless communication device, wherein a higher control signal from the wireless controller is prioritized.

(2) The controlled unit is a camera unit capable of transmitting image information by the wireless communication unit. The wireless control unit displays an image received from the camera unit and controls the camera unit. (1) characterized by having a monitor unit capable of transmitting a control signal for controlling an operation state of the camera unit by the wireless communication unit, and a remote operation unit capable of wirelessly controlling the camera unit separately from the monitor unit. Wireless communication device.

(3) The wireless communication apparatus according to the above item (2), wherein the plurality of wireless communication means for controlling the camera section use a simplified portable telephone system and infrared remote control means.

[0014]

With the configuration of the wireless communication apparatus according to the present invention as described above, the camera unit can be controlled from a position distant from the monitor unit by a plurality of communication units. When the camera unit control signals conflict with each other, the control signal with the higher transfer rate of each wireless communication is prioritized, whereby the control can be performed reliably and efficiently.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
A detailed description will be given based on a plurality of embodiments with reference to the drawings.

[0016]

FIG. 1 shows a first embodiment of the present invention.
5 showing the configuration of the image transmission unit of the wireless device of the embodiment of FIG.
FIG. In the figure, reference numeral 101 denotes a camera unit (camcorder);
Converted to HS digital data and transmitted, received P
A modem unit that functions to restore camera unit control data from HS data.

Reference numeral 103 denotes a modem unit 102 and the PHS telephone 1
104, a PHS telephone, 10
Reference numeral 5 denotes an infrared remote control (remote control) device that can control the zooming and recording operations of the camcorder, 106 denotes an infrared light emitting unit of the infrared remote control 105, and 107 denotes a camcorder 10
1 is an infrared light receiving section. A monitor unit (right side in FIG. 1) that displays a wirelessly received image and allows the camera unit to be controlled by the PHS phone 104 has the same configuration as that in FIG.

FIG. 2 is a block diagram showing an example of the internal configuration of the camcorder 101. As shown in FIG. In the figure, an optical image that has passed through a lens optical system 200 is converted into an electric signal by an image sensor 201, converted into a video signal by a video signal processing circuit 202, and output to a recording device 203 using a magnetic tape or the like.

Reference numeral 204 denotes a microphone unit. An external audio signal is processed by an audio signal processing circuit 205 and output to a recording device 203. Images and audio signals are
It is also output to an external terminal connected to the modem unit 102.

Reference numeral 206 denotes a key unit for performing various operations of the camcorder 101, such as executing and stopping a zoom operation and a recording operation;
An infrared remote control light receiving unit 207 receives a control signal from the infrared remote control 105. Outputs from the key unit 206 and the light receiving unit 207 are input to the control unit 208. The control unit 208 is mainly configured by a microcomputer or the like, and controls the zoom driving unit 209 and the focus driving unit 2 based on the input information.
10. Control the recording device 203. The control unit 208 includes:
A reception control signal from the PHS telephone 104 from the modem unit 102 is also input.

By using a configuration that can be controlled by a plurality of wireless control means, such as the PHS phone 104 and the infrared remote controller 105, the conventional problem, such as the golf form check by one person, is described. Even when the monitor unit is not very close to the subject, for example, when performing zooming, the infrared remote control 105 can be used to freely operate zooming, recording start, stop, and the like.

If the configuration is such that control can be performed by a plurality of wireless control means, it is possible that each control signal competes with each other. In the case where such control signal competition by radio occurs, it is better to give priority to a control signal with higher efficiency. A feature of the embodiment of the present invention is that a control signal having a higher information amount per unit time, that is, a control signal having a higher transfer rate is prioritized as a more efficient control signal.

A control signal with a high transfer rate can transmit more information in a short time, and is therefore more efficient than control means with a low transfer rate. Generally, the data transfer rate per second of a PHS phone is 32,
It is around 000 Bit, and 9,60
It is often around 0 Bit.

FIG. 3 shows a camcorder 10 in view of the above points.
2 is a flowchart showing an operation sequence of the control unit 208 in the No. 1 and shows processing corresponding to control signal competition.

First, in step S300, each part shown in FIG. 2 and the inside of the microcontroller are initialized. Next, in step S301, it is checked whether or not a key operation input of the main body of the camcorder 101 has been performed. If a key operation has been performed, the control unit 208 in FIG. 2 performs zooming according to the key operation performed in step S302. Control such as control and recording start is performed.

If it is determined in step S301 that there is no key operation input, it is checked in step S303 whether there has been reception control data from the PHS telephone 104 having a high transfer rate. When the input is made, the control unit 208 in FIG. 2 performs an operation according to the control data content received in the PHS in step S304.

If it is determined in step S303 that there is no PHS reception control data, it is checked in step S305 whether a reception command from the infrared remote controller 105 has been received. In this case, the control unit 208 of FIG. 2 performs an operation according to the content of the command received in step S306. Step S307 is for the other camcorders 10
This is the first process.

By causing the control unit 208 to operate as described above, the camera unit 1 is operated by the PHS telephone 104, for example.
When the control signal from the monitor unit capable of the control of 01 and the control signal from the infrared remote controller conflict, the control signal received by the PHS telephone 104 having a high transfer rate can be prioritized.

(Second Embodiment) Hereinafter, a second embodiment according to the present invention will be described.
An example will be described. The components of the second embodiment are the same as those of the first embodiment, and thus redundant description will be omitted. Book second
The feature of the embodiment lies in the operation sequence flow of the control unit 208 in FIG.

FIG. 4 is an operation sequence flowchart of the control unit 208 of the second embodiment, in which a plurality of radio control signals are prioritized more strongly than FIG. 3 of the first embodiment. It was made.

First, in step S400, each part shown in FIG. 2 and the inside of the microcontroller are initialized.

Next, in step S401, it is checked whether or not a key operation input of the main body of the camcorder 101 has been performed. If a key operation has been performed, the control unit 208 in FIG.
02 performs control such as zoom control and recording start according to the key operation.

If it is determined in step S401 that there is no key operation input, then in step S403, the camcorder 101 sends the modem unit 1 of the PHS telephone 104 of FIG.
02 is connected or not. In this detection method, communication is performed with the modem unit 102, and determination is made based on whether or not a response ACK signal is returned.

At step S403, PHS modem unit 1
If it is determined that there is a connection No. 02, it is checked in step whether or not there is reception control data from the PHS having a high transfer rate.
If the control data is input via the PHS, the control unit 208 in FIG. 2 performs an operation according to the control data content received in the PHS in step S405. On the other hand, if it is determined in step S404 that there is no PHS reception control data, the process ends regardless of the presence or absence of the reception command of the infrared remote controller 105.

The signal from the infrared remote controller 105 is accepted when it is determined in step S403 that the PHS modem unit 102 is not present.
In step 406, it is checked whether or not a reception command has been received from the infrared remote controller 105. If any reception command has been received from the infrared remote controller 105, the control unit 2 shown in FIG.
Step 08 performs an operation in accordance with the content of the command received in step S407. Step S408 is other camcorder processing.

As described above, when the wireless control means (the PHS telephone 104 in this embodiment) having a high transfer rate is connected, the control signal of the infrared remote control 105 is substantially accepted and the control signal is transmitted. In the case of a conflict, it is possible to prevent a malfunction due to the light of the infrared remote controller 105 of another system. In this embodiment, the infrared remote controller 105 is used. However, the present invention is not limited to infrared rays only, and it is a matter of course that any wireless communication means such as weak radio waves may be used.

[0037]

As described above, according to the present invention,
By adopting a configuration that can be controlled by a plurality of wireless control means, such as a PHS phone and an infrared remote controller, remote control of the camera unit can be performed by anyone other than the photographer. Even when the monitor is not very close to the subject, such as when performing a golf foam check, the user can freely operate controls such as starting and stopping zooming and recording using an infrared remote controller or the like. be able to. Further, when these wireless control signals compete with each other, by giving priority to the control signal with the higher transfer rate, control can be performed reliably and efficiently.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an image transmission unit of a wireless communication device according to a first embodiment.

FIG. 2 is a block diagram showing the internal configuration of the camcorder according to the first embodiment;

FIG. 3 is an operation sequence flowchart of a control unit in the camera unit of the first embodiment.

FIG. 4 is an operation sequence flowchart of a control unit in the camera unit of the second embodiment.

FIG. 5 is an example of a configuration diagram of a conventional communication system using a PHS as a wireless communication unit.

FIG. 6 is a block diagram of a conventional modem unit.

[Explanation of symbols]

 101, 501 Camera unit (camcorder) 102, 502 Modem unit 104, 504, 505 PHS telephone (device) 105 Infrared remote control 106 Infrared light emitting unit 107 Infrared light receiving unit 200 Lens optical system 202 Video signal processing circuit 203 Recording device 207 Infrared remote control light receiving Unit 208 control unit

Continued on the front page F-term (reference) 5C022 AA00 AB65 AC01 AC42 AC69 AC74 AC79 5C064 AA01 AB04 AC04 AC06 AC07 AC12 AC22 AD01 AD06 AD13 AD14 5K002 AA01 AA05 FA03 GA01 GA02 GA04 5K067 BB28 DD11 EE02 EE32 EE37

Claims (3)

[Claims] 1. A wireless communication system comprising: a plurality of wireless control means; and a controlled unit controlled by the control means, wherein when the plurality of wireless control signals compete with each other, the transfer rate of the control signal is high. A wireless communication device characterized by giving priority to a control signal from said wireless control means. 2. The control unit is a camera unit capable of transmitting image information by the wireless communication unit, and the wireless control unit displays an image received from the camera unit and controls the camera unit. 2. The wireless communication system according to claim 1, further comprising a monitor unit capable of transmitting a control signal for controlling an operation state by the wireless communication unit, and a remote operation unit capable of wirelessly controlling the camera unit separately from the monitor unit. Communication device. 3. The wireless communication apparatus according to claim 2, wherein the plurality of wireless communication units for controlling the camera unit use a simplified portable telephone system and an infrared remote control unit.