JP2006222841A - Surveillance camera system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide, with a cost rise suppressed, a surveillance camera system capable of surely detecting a trespasser, a suspicious person, etc. <P>SOLUTION: A dog is equipped with an outdoor unit 10 having a camera head part 11 and a control transmitting part 12 with harness 13. As the dog barks with a microphone of the outdoor unit 10, the voice is detected. Taking a moving video is initiated in response to a trigger derived by the detected voice to generate the picture signal, to transmit radio the picture signal, and to display the picture on an inside-of-a-house unit 20 equipped with a transceiver antenna 21 at a picture display 22, so that an outdoor sound is exhausted from a loud speaker 23. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a surveillance camera system having a camera unit that performs photographing and generates an image signal, and a monitor unit that displays an image based on the image signal from the camera unit.

  2. Description of the Related Art Conventionally, a camera unit that forms a subject image on an image sensor with a photographing optical system and generates an image signal representing the subject with the image sensor, and a monitor unit that displays an image based on the image signal from the camera unit There is known a surveillance camera system having

  In such a surveillance camera system, for example, a technique for ensuring a wide field of view as a surveillance camera by rotating a swivel mounted with a plurality of cameras has been proposed (see Patent Document 1).

  In addition, based on the identification marker installed at each monitoring point, a technique is proposed to always display the monitoring target at a predetermined position on the screen by changing the angle (pan angle, tilt angle) of the camera moving on the rail. (See Patent Document 2).

  Furthermore, in a monitoring camera system that performs wireless communication between a monitoring camera equipped with a human sensor for detecting a human body and the master unit, a recording of an image photographed by the monitoring camera using a wireless signal from the human sensor as a trigger Has been proposed (see Patent Document 3).

In addition, there has been proposed a technique devised so that a shutter is operated by using the raising of a neck when wearing a microfilm camera on a dog (see Patent Document 4).
JP-A-8-37615 JP-A-9-93570 JP 2003-289534 A JP-A-8-37982

  Here, when the techniques proposed in Patent Documents 1, 2, 3, and 4 are applied to surveillance cameras for homes, there are the following problems.

  In ordinary houses, buildings often have complex shapes, and there are many places that block shooting. However, the technique proposed in Patent Document 1 rotates a swivel mounted with a plurality of cameras, and therefore sufficiently secures a shooting range for shooting an illegal intruder or a suspicious person. It is difficult. Therefore, if this technology is applied to a surveillance camera system for ordinary houses, it is difficult to reliably detect illegal intruders and suspicious persons.

  In addition, the technique proposed in Patent Document 2 for displaying a monitoring target by changing the angle of a camera moving on a rail is for monitoring a specific location. For this reason, it is difficult to reliably detect illegal intruders and suspicious persons.

  Furthermore, in the technique of recording and displaying an image triggered by a wireless signal from a human sensor, which is proposed in Patent Document 3, and generating a warning sound, the human sensor can detect the approach of a person, The surveillance shooting range is almost fixed, so it is difficult to reliably detect illegal intruders and suspicious persons.

  In addition, the technique proposed in Patent Document 4 for taking a picture with a microfilm camera attached to a dog has a problem that image monitoring in real time cannot be performed.

  Here, if the above-described technology is improved and an attempt is made to realize a surveillance camera system that can reliably detect illegal intruders and suspicious persons, there arises a problem of increasing the cost and increasing the size of the system.

  In view of the above circumstances, an object of the present invention is to provide a surveillance camera system capable of reliably detecting illegal intruders and suspicious persons while suppressing an increase in cost.

The surveillance camera system of the present invention that achieves the above object provides:
A camera unit that includes a photographing optical system, an image sensor, and a first wireless communication unit, is attached to a dog, receives a photographing trigger, starts moving image photographing, generates an image signal, and wirelessly transmits, and a second wireless communication unit And a monitor unit that receives the image signal transmitted from the camera unit and is fixedly installed and displays an image,
The camera unit includes a sound sensor and starts photographing using a dog bark as a photographing trigger.

  The surveillance camera system of the present invention detects a dog bark with the sound sensor of the camera unit attached to the dog, receives a shooting trigger by the detected dog bark, and starts video recording with the camera unit. An image signal is generated, the image signal is wirelessly transmitted to a fixedly installed monitor unit, and an image is displayed on the monitor unit. For this reason, the imaging range of the camera unit provided outdoors can be sufficiently secured. In addition, on the monitor unit provided indoors, an image photographed in response to a photographing trigger by a dog bark is displayed. The camera unit and the monitor unit may have a simple configuration as shown in an embodiment described later. Therefore, illegal intruders and suspicious persons can be reliably detected while suppressing an increase in cost.

  Here, the camera unit further includes a vibration sensor for detecting the vibration of the camera unit, and in addition to the dog bark detected by the sound sensor, the detection of vibration by the vibration sensor is used as a shooting trigger to start shooting. It is preferable that

  Only the detection of a dog's bark by a sound sensor may erroneously detect the bark and noise of other dogs in the vicinity. Here, since the dog's head shakes when the dog is barking, using this fact, in addition to the detection of the dog's barking voice by the sound sensor, the detection of vibration by the vibration sensor is used as a shooting trigger. When started, illegal intruders and suspicious persons can be detected more reliably.

  The camera unit further includes a counter that counts the number of barks within a predetermined time, and starts shooting when the sound sensor detects a dog bark more than a predetermined number of times within a predetermined time. It is also a preferred embodiment that it does.

  Dogs often bark continuously during vigilance or intimidation. Therefore, when shooting is started with a shooting trigger that a dog bark has been detected more than a predetermined number of times within a predetermined time by a sound sensor, illegal intruders and suspicious persons can be reliably detected with high accuracy. .

Furthermore, the monitor unit includes a still image shooting instruction unit that instructs the camera unit to take a still image in response to a user operation.
The camera unit prohibits still image shooting during a period in which a bark is detected by the sound sensor, and performs still image shooting at the end of the period when a still image shooting instruction is received within that period. It is also preferable.

  Generally, in still image shooting, flash light can always be emitted regardless of the brightness of the outside world. On the other hand, during the period when the bark is detected, it is video shooting, so if you instruct to shoot a still image and flash light is emitted in that still image shooting, it will give alarm to illegal intruders and suspicious people Can be effective for crime prevention.

The monitor unit includes a still image shooting instruction unit that instructs the camera unit to take a still image in response to a user operation.
The camera unit prohibits still image shooting during a period in which bark is detected by the sound sensor and / or a period in which vibration is detected by the vibration sensor, and issues a still image shooting instruction within that period. When received, a still image may be taken at the end of the period.

  In this way, flash light may be emitted in the instructed still image shooting to give warning to illegal intruders and suspicious persons.

  Further, the camera unit supplies power to only a part of the camera unit including a circuit portion for detecting the dog bark by the sound sensor, and receives detection of the dog bark by the sound sensor. It is also preferable to include a power supply control unit that supplies power to the entire camera unit.

  If it does in this way, the power consumption of a camera unit can be restrained small.

  In addition, the camera unit supplies power to only a part of the camera unit including a circuit part that detects a dog bark using the sound sensor and / or a circuit part that detects vibration using the vibration sensor. In addition, it may be provided with a power supply control unit for detecting the bark of the dog by the sound sensor and / or detecting the vibration by the vibration sensor and supplying power to the entire camera unit. .

  In this way, the power consumption of the camera unit may be kept small.

  ADVANTAGE OF THE INVENTION According to this invention, the surveillance camera system which can detect an illegal intruder, a suspicious person, etc. reliably can be provided, suppressing a cost increase.

  Hereinafter, embodiments of the present invention will be described.

  FIG. 1 is a diagram showing a configuration of a first embodiment of the surveillance camera system of the present invention.

  FIG. 1 shows an outdoor unit 10 (corresponding to an example of the camera unit of the present invention) that is attached to a dog and receives a shooting trigger to start moving image shooting, generates an image signal, and wirelessly transmits the image signal. A surveillance camera system 1 having an indoor unit 20 (corresponding to an example of a monitor unit according to the present invention) that receives an image signal transmitted wirelessly from an outdoor unit 10 and displays an image is shown.

  The outdoor unit 10 includes a camera head unit 11, a control transmission unit 12, and a harness 13. As shown in FIG. 1, the outdoor unit 10 is attached to a dog by a harness 13. Here, the angle of view α of the camera head unit 11 constituting the outdoor unit 10 is set toward the front of the line of sight of the dog. Although the camera head unit 11 will be described later, the camera head unit 11 includes a monitoring camera, a microphone that receives outdoor sound (corresponding to an example of a sound sensor in the present invention), and the like. Although the control unit 12 will be described later, the control transmission unit 12 includes a transmission / reception unit, an antenna, a speaker, a battery, and the like.

  On the other hand, the indoor unit 20 includes a transmission / reception antenna 21, an image display unit 22, a speaker 23, a power-on button 24, a recording button 25, a monitor-on button 26, a microphone (referred to as a microphone) 27, a menu. A display button 28, a play / forward button 29, a play / return button 30, an LED 31, and a microphone on button 32 are provided. As will be described in detail later, the indoor unit 20 receives an image signal transmitted wirelessly from the outdoor unit 10 by a transmission / reception antenna 21, displays an image on the image display unit 22, and emits outdoor sound from the speaker 23. To do.

  When a dog finds an illegal intruder or suspicious person, the dog barks toward that person. The bark is collected by a microphone mounted on the outdoor unit 10, and if it is above a certain volume, it is assumed that an illegal intruder, a suspicious person, etc. has been detected, and a monitoring start state is entered. At that time, a monitoring start trigger signal is transmitted from the outdoor unit 10. The indoor unit 20 receives the monitoring start trigger signal and transitions from the standby state to the monitoring state. In the monitoring state, the indoor unit 20 outputs an image and a sound based on the image signal and the sound signal from the outdoor unit 10. Note that a warning sound may be generated from a speaker when the monitor state is changed. As a result, the supervisor can check and deal with illegal intruders, suspicious persons, etc. from indoor to outdoor. For the purpose of improving convenience, when the monitor on button 26 is turned on to enter the monitor mode, it is possible to forcibly shift from the standby state to the monitor state. When the recording button 25 is turned on, the image at that time is stored in a storage medium provided in the indoor unit 20. Examples of the storage medium include a built-in memory and a removable recording medium. At that time, information such as date and time is also recorded. The recorded image file preferably conforms to a DCF (Design rule for Camera File) format or an EXIF (Exchangeable Image File) format. The playback can be performed by the indoor unit 20, and the indoor unit 20 can be connected to a device such as a personal computer (PC) with a cable or the like, or a removable recording medium can be inserted into the device. Playback by equipment is also possible.

  Furthermore, since the outdoor unit 10 has a built-in speaker, it is possible to convey the sound collected by the microphone 27 of the indoor unit 20 to the dog. Thereby, if it is a dog which mastered special command training, control, such as guiding to arbitrary places, according to a supervisor's command becomes possible. If the indoor unit 20 is of a portable type, it is a useful method for police dogs, disaster rescue dogs, service dogs, and the like.

  FIG. 2 is a diagram showing the configuration of the outdoor unit shown in FIG.

  The outdoor unit 10 constituting the surveillance camera system 1 of the present embodiment is a unit to be attached to an animal (mainly a dog), and includes a harness 13 and a buckle 14 for attachment. The outdoor unit 10 also includes a camera head unit 11 that is attached to the animal's head and a control transmission / reception unit 12 that is attached to the animal's torso. Both the camera head unit 11 and the control transmission / reception unit 12 are electrically connected by a cable 15. In this embodiment, the outdoor unit 10 is separated into two, and the camera head unit 11 is mounted on the head of the animal and the control transmission / reception unit 12 is mounted on the body of the animal. 11 and the control transmission / reception unit 12 may be integrated into an animal head with a reduced size and weight.

  In addition, a cushioning material 16 is provided on the bottom surface of the camera head portion 11 in order to improve the adhesion with the animal head. Here, the cushioning material 16 is made of a material having good heat dissipation such as a cooling gel, and thereby, the heat generated by the head and the camera head 11 is radiated to the outside air, thereby preventing the animal's body temperature from rising. I'm in charge.

  The camera head unit 11 includes a microphone 11a and a speaker 11b. In addition, when the camera head unit 11 is mounted, the left and right directions are panned so that the lens optical axis can be aligned in front of the line of sight of the animal regardless of individual differences in the shape of the head of the animal. A pan adjusting mechanism 11c for adjusting and a tilt adjusting mechanism 11d for adjusting the tilt in the vertical direction are provided. These adjustment mechanisms 11c and 11d may be any mechanism that can move a member in which the lens 11e and an internal image sensor (CCD) are integrated in the vertical and horizontal directions.

  Here, the outdoor unit 10 is a unit mainly used outdoors, and often receives external light. Therefore, solar panels 11f and 12f are provided on the upper part of the camera head unit 11 and the control transmission / reception unit 12 constituting the outdoor unit 10. Thereby, the battery provided in the camera head unit 11 and the control transmission / reception unit 12 is appropriately charged. As a matter of course, the camera head unit 11 and the control transmission / reception unit 12 have a waterproof structure and a dust-proof structure.

  The camera head unit 11 is provided with a light emitting unit 11g. In the monitor mode, the light emitting unit 11g is turned on when the amount of light received by the CCD is equal to or less than a predetermined value when it is dark at night or the like. The camera head unit 11 is also provided with a flash light emitting unit 11h. The flash light emitting unit 11h emits light when the amount of light received by the CCD during still image shooting is equal to or less than a specified value. It should be noted that, when a still image is taken, the flash light emitting portion 11h emits light regardless of the brightness of the outside world, so that an intruder or a suspicious person can be warned, which is effective for a crime prevention effect.

  On the other hand, the control transmission / reception unit 12 includes a transmission / reception antenna 12a, a battery slot 12b, a media slot 12c, a power switch 12d, and the solar panel 12f described above. The media slot 12c is for mounting a recording medium, and in accordance with a recording instruction from the indoor unit 20, data of an image photographed by the camera head unit 11 is recorded on the recording medium mounted in the media slot 12c. The Note that the indoor unit 20 is also provided with a function of recording the same image data. This can be used as a backup when image transmission from the outdoor unit 10 to the indoor unit 20 is incomplete or unclear due to noise or the like. In addition, there is a high possibility that images cannot be monitored while the indoor unit 20 is receiving a still image. Therefore, there is a possibility of missing a photo opportunity. In that case, the problem can be solved by recording still image data only in the outdoor unit 10 and not transmitting the still image to the indoor unit 20. Further, the image in the recording medium of the outdoor unit 10 may be transmitted to the indoor unit 20 when sufficient time is available or when the monitor unit is not in the monitor state.

  Note that the selection of recording the image as both the indoor unit 10 and the outdoor unit 20, or only the indoor unit 20 or only the outdoor unit 10 can be set by a menu operation of the indoor unit 20. As will be described in detail later, the outdoor unit 10 detects the volume of the sound collected by the microphone 11a and performs frequency analysis to detect the situation that the dog is barking. When detected, a detection signal is transmitted to the indoor unit 20. Thereby, the indoor unit 20 is. Transition from the standby state to the monitor state. Also, the dog is not always stationary, and the head sways in a more bark situation. For this reason, the outdoor unit 10 is equipped with an angular velocity sensor (or acceleration sensor), which will be described later, which is an example of a vibration sensor according to the present invention, detects blurring of a captured image, and further performs blurring correction. As the blur correction means, there are an optical means for following a lens or a CCD, a means for correcting by cutting out an image from the CCD, or the like. Note that a means for calculating and correcting a motion vector from the correlation of images without using a vibration sensor (blur detection sensor) such as an angular velocity sensor may be used. Simply detecting the voice alone may falsely detect the bark and noise sounds of other dogs in the vicinity. Therefore, the head shakes in situations where the dog barks. By detecting the situation that the dog barks in combination, illegal intruders and suspicious persons can be monitored with higher accuracy. Next, the details of the indoor unit 20 will be described.

  FIG. 3 is a diagram illustrating a configuration of the indoor unit illustrated in FIG. 1.

  As described above, the indoor unit 20 includes the transmission / reception antenna 21, the image display unit 22, the speaker 23, the power-on button 24, the recording button 25, the monitor-on button 26, the microphone 27, and the menu display. A button 28, a play / forward button 29, a play / return button 30, an LED 31, and a microphone on button 32 are provided. The indoor unit 20 further includes an earphone jack 33, a DC input terminal 34, a battery slot 36 in which a battery 35 is loaded, and a media slot 38 in which a recording medium 37 is loaded.

  In the indoor unit 20, when the power-on button 24 is pressed, the LED 31 is lit and enters a standby state. When the monitor-on button 26 is pressed in this state, a captured image from the outdoor unit 10 is displayed on the image display unit 22. At the same time, the sound collected by the outdoor unit 10 is output to the speaker 23 and the data is output to the earphone jack 33.

  Furthermore, when the microphone on button 32 is pressed, the sound collected by the microphone 27 of the indoor unit 20 is output to the speaker of the outdoor unit 10. Further, by pressing the recording button 25, a still image shooting instruction is transmitted to the outdoor unit 10, and still image shooting is performed in the outdoor unit 10. The photographed still image is compressed in the outdoor unit 10 and recorded on the recording medium, and is transmitted to the indoor unit 20 at the same time. In the indoor unit 20, the compressed image is received and recorded on the recording medium 37 and simultaneously decompressed and displayed on the image display unit 22.

  The surveillance camera system 1 of the present embodiment transmits a detection signal when the outdoor unit 10 detects sound in the standby state, and puts the indoor unit 20 in the monitor state. At that time, an alarm sound may be output from the speaker 23 of the indoor unit 20. Here, the recorded image is described as an example of a still image, but a moving image may be recorded. As an example of an operation for recording a moving image, moving image recording is started by long-pressing the recording button 25, and is ended by pressing the recording button 25 again.

  To play back the image recorded on the recording medium 37, the last recorded image is played back and displayed on the image display unit 22 by pressing the play / forward button 29 or the play / return button 30). Thereafter, the playback frames can be sequentially sent by operating the playback / forward button 29 and the playback / return button 30.

  4 is a diagram showing an internal block diagram of the outdoor unit shown in FIG.

  FIG. 4 shows a block diagram of the camera head unit 11 and a block diagram of the control transmission / reception unit 12 constituting the outdoor unit 10. The camera head unit 11 and the control transmission / reception unit 12 are connected by a cable 15.

  The camera head unit 11 includes the microphone 11a, the speaker 11b, the pan adjustment mechanism 11c, the tilt adjustment mechanism 11d, the lens 11e, the solar panel 11f, the light emission unit 11g, and the flash emission unit 11h.

  Further, the camera head unit 11 is provided with an angular velocity sensor 11i for detecting a situation in which the dog is barking in combination with the sound collected by the microphone 11a. Also, a CCD (imaging device) 11j that converts a subject image formed via the lens 11e into an analog image signal, and a CDS A / D that performs processing for reducing noise in the analog image signal output from the CCD 111j. A unit 11k and a TG (timing generator) unit 11m that generates a timing signal are provided.

  Further, the camera head unit 11 is provided with a light emission control / boosting circuit 11p for controlling the light emission amount of the flash light emitting unit 11h and boosting the flash light to a voltage for flash light emission in combination with the flash capacitor 11n. ing.

  The camera head unit 11 includes a microphone amplifier 11q that amplifies an audio signal from the microphone 11a, and a speaker amplifier 11r that amplifies a signal from a DSP (Digital Signal Processor) 12g described later and outputs the amplified signal to the speaker 11b. It has been.

  On the other hand, the control transmission / reception unit 12 includes the transmission / reception antenna 12a, power switch 12d, solar panel 12f, DSP 12g, recording medium 12h, internal memory 12i, MPU (Micro Processor Unit) 12j, transmission / reception module 12k, power supply circuit 12m, battery. 12n are provided.

  In the DSP 12g, in combination with the MPU 12j, processing of signals transmitted / received via the transmitting / receiving antenna 12a and the transmitting / receiving module 12k, blur amount detection processing based on a detection signal from the angular velocity sensor 11i of the camera head unit 11, blur correction processing, Compression processing of image data from the CDS A / D unit 11k, memory control for the recording medium 12h and the internal memory 12i, A / D processing of the microphone amplifier 11q and speaker amplifier 11r, D / A processing, audio processing, volume detection processing, Audio frequency analysis processing or the like is performed.

  The MPU 12j controls the power supply circuit 12m and the light emitting unit 11g based on signals transmitted via the transmission / reception antenna 12a and the transmission / reception module 12k.

  The power supply circuit 12m is supplied with power from the battery 12n and the solar panels 11f and 12f.

  FIG. 5 is a diagram showing an internal block diagram of the indoor unit shown in FIG.

  The indoor unit 20 shown in FIG. 5 includes a transmission / reception antenna 21, a microphone 27, a speaker 23, an earphone jack 33, a DC input terminal 34, an LED 31, a power-on button 24, a recording medium 36, an image display unit (LCD) shown in FIG. ) 22 is provided. 3 includes an operation unit 40 including a record button 25, a monitor on button 26, a menu display button 28, a playback / forward button 29, a playback / return button 30, and a microphone on button 32.

  Further, the indoor unit 20 shown in FIG. 5 includes a transmission / reception module 41, a microphone amplifier 42, a speaker amplifier 43, a DSP 44, an internal memory 45, an LCD driver 46, an MPU 47, and a power circuit 48. ing.

  In the DSP 44, in combination with the MPU 47, processing including compression and expansion of signals transmitted / received via the transmission / reception antenna 21 and the transmission / reception module 41, memory control for the recording medium 36 and the internal memory 45, a microphone amplifier 42, and a speaker amplifier 43. A / D processing, D / A processing, etc. are performed.

  In the MPU 47, the power supply circuit 48 and the LED 31 are also controlled based on an operation instruction from the operation unit 40.

  FIG. 6 is a control flowchart of the detection operation of the outdoor unit shown in FIG.

  When the power of the outdoor unit 10 is turned on, the monitoring state is set in step S1. In addition, since the dog barks continuously during warning or threatening, in order to detect the state, the number counter that counts the number of times the dog barks within a predetermined time is set to zero. This number counter is provided in the DSP 12. In order to measure the predetermined time, a timer counter is also provided in the DSP 12 to execute a countdown after the barking state is detected, and the user can set the set value (M) set appropriately by the timer counter. Set to. The set value (M) may be a numerical value normally expressed in seconds. The number counter and timer counter are set by menu items in the indoor unit 20, and set values are transmitted from the indoor unit 20 to the outdoor unit 10 and stored in the memory in the outdoor unit 10.

  When the outdoor unit 10 is in a monitoring state, a standby state start command is transmitted to the indoor unit 20 in step S2. Thereby, the indoor unit 20 will be in a standby state. It is desirable to display this state with the LED of the indoor unit 20 or the like. In the monitoring state, monitoring of the microphone volume level is started in step S3, and monitoring of the shake level of the angular velocity sensor is started in step S4.

  Next, in step S5, it is determined whether or not the microphone volume level is equal to or higher than a specified value. If it is determined that the microphone volume level is less than the specified value, the process returns to step S3. On the other hand, if it is determined that the microphone volume level is equal to or higher than the specified value, the process proceeds to step S6.

  In step S6, it is determined whether or not the angular velocity sensor shake level detection is set. If it is determined that the shake level detection of the angular velocity sensor is not set, the process proceeds to step S8 as it is. On the other hand, if it is determined that the shake level detection of the angular velocity sensor is set, the process proceeds to step S7.

  In step S7, it is determined whether the shake level of the angular velocity sensor is equal to or higher than a specified value. If it is determined that the value is less than the specified value, the process returns to step S3. On the other hand, if it is determined that the value is equal to or greater than the specified value, the process proceeds to step S8 in order to perform frequency analysis of the acquired voice (bark).

  In step S8, it is determined whether or not frequency analysis detection is set. If it is determined that the frequency analysis detection is not set, the process proceeds to step S10 as it is. On the other hand, if it is determined that the frequency analysis detection is set, the process proceeds to step S9.

  In step S9, it is determined whether or not the frequency analysis result matches a specific pattern (frequency distribution pattern of bark due to dog threatening). If it is determined that the pattern does not match the specific pattern, the process returns to step S3. On the other hand, if it is determined that the pattern matches the specific pattern, since vigilance is detected, the process proceeds to step S10. Note that the addition of the determination based on the vibration level and frequency analysis other than the above-described volume can be set by the user, set by a menu item in the indoor unit 20, and a set value is transmitted from the indoor unit 20 to the outdoor unit 10. And stored in the memory in the outdoor unit 10.

  In step S10, it is determined whether or not the number of detections (N) of the number counter is set to 2 or more. When it is determined that the number of times of detection (N) is not set to 2 or more, the process proceeds to step S16 described later. On the other hand, when it is determined that the number of detections (N) is set to 2 or more, the process proceeds to step S11. In step S11, it is determined whether or not the timer counter is zero. If it is determined that the timer counter is 0, the process proceeds to step S12. In step S12, the number counter is set to 0, the set value of the timer counter is set to M, and the process returns to step S3. On the other hand, if it is determined that the timer counter is not 0, the process proceeds to step S13. In step S13, the timer counter setting value is set to M and countdown is started. Next, in step S14, 1 is added to the number counter (+1), and the process proceeds to step S15. In step S15, it is determined whether the number counter is equal to the detection number N or not. If it is determined that the number counter is not equal to the detection number N, the process returns to step S3. On the other hand, if it is determined that the number counter is equal to the detection number N, the process proceeds to step S16.

  In step S <b> 16, a monitor state start instruction is transmitted to the indoor unit 20. Next, the process proceeds to step S17, where the indoor unit 20 is driven in the camera monitor mode. Thereby, an image photographed by the camera of the outdoor unit 10 is displayed on the display screen of the indoor unit 20. Next, in step S18, it is determined whether an instruction to turn off the monitor state is received from the outdoor unit 10. If it is determined that the monitor unit OFF instruction has not been received from the outdoor unit 10, the process returns to step S17. On the other hand, when it determines with having received the instruction | indication of the monitor state OFF from the outdoor unit 10, it returns to step S11.

  FIG. 7 is an operation flowchart for recording the still image of the outdoor unit.

  When the power of the outdoor unit 10 is turned on, the monitoring state is set in step S21. Next, in step S22, the monitor mode is set by the detection in the outdoor unit 10 or the reception of the monitor mode command from the indoor unit 20, and the process proceeds to step S23.

  In step S23, it is determined whether or not a recording instruction from the indoor unit 20 has been received. If it is determined that the recording instruction from the indoor unit 20 has not been received, step S23 is repeatedly executed. On the other hand, if it is determined that the recording instruction from the indoor unit 20 has been received, the process proceeds to step S24.

  In step S24, it is determined whether or not the microphone volume level is equal to or higher than a specified value. If it is determined that the microphone volume level is less than the specified value, step S24 is repeatedly executed. On the other hand, if it is determined that the microphone volume level is greater than or equal to the specified value, the process proceeds to step S25.

  In step S25, it is determined whether the shake level of the angular velocity sensor is equal to or less than a specified value. If it is determined that the shake level of the angular velocity sensor exceeds the specified value, step S25 is repeatedly executed. On the other hand, if it is determined that the shake level of the angular velocity sensor is equal to or less than the specified value, the process proceeds to step S26. In step S26, the still image recording mode is executed. At the same time, the audio is recorded for a certain time. The outdoor unit 10 is provided with a blur correction function, and can correct some blurs. However, in order to suppress blur as much as possible, the camera head of the outdoor unit 10 is used in this still image recording mode. The part (dog head) needs to be as stationary as possible. In addition, since sound is recorded in the same manner, as described above, when it is determined that the microphone volume level is not more than the specified value and the shake level of the angular velocity sensor is not more than the specified value, still image shooting (recording) is started. Control. Thus, even if the recording instruction is executed at the time of barking, the state at that time is not recorded, but is recorded when the barking voice is faded and is still to some extent. In this example, both still image data and audio data are recorded, but either one may be recorded. Whether or not the captured still image data and audio data are transmitted to the indoor unit 20 and recorded (whether or not the still image monitor setting is ON) can be set by a user setting. The setting is set by a menu item in the indoor unit 20, and a setting value is transmitted from the indoor unit 20 to the outdoor unit 10 and stored in a memory in the outdoor unit 10.

  In step S27, it is determined whether the still image monitor setting is on. If it is determined that the still image monitor setting is off, the process directly proceeds to step S29. In order to give priority to the transmission of the monitor image when the still image monitor setting is OFF, as described later, recording on the recording medium of the outdoor unit 10 is sequentially performed, but the compressed still image data stored in the indoor unit 20 and Transmission of audio data is performed when the monitor mode is off. Further, when a command to shift to the monitor mode is generated during the transmission, the transmission is interrupted and the monitor mode is set. The interrupted transmission data is transmitted when the next monitor mode is off.

  On the other hand, if it is determined in step S27 that the still image monitor setting is ON, the process proceeds to step S28. In step S28, still image data and audio data are transmitted to the indoor unit 20. The indoor unit 20 records these data on a recording medium.

  Next, in step S29, it is determined whether or not the outdoor unit recording setting is on. If it is determined that the outdoor unit recording setting is not on, the process returns to step S23. On the other hand, if it is determined that the outdoor unit recording setting is ON, the process proceeds to step S30. In step S30, still image data and audio data are recorded on a recording medium, and the process proceeds to step S31.

  In step S31, it is determined whether or not the monitor mode off is received from the indoor unit 20. If it is determined that the monitor mode off has not been received, the process returns to step S23. On the other hand, if it is determined that the monitor mode off is received, the process proceeds to step S32.

  In step S32, it is determined whether the still image monitor setting is on. If it is determined that the still image monitor setting is on, the process returns to step S21. On the other hand, if it is determined that the still image monitor setting is OFF, the process proceeds to step S33.

  In step S33, a new recording is performed on the recording medium. In addition, transmission of the still image data and audio data whose transmission is interrupted to the indoor unit 20 is started. Next, in step S34, it is determined whether or not the detection of the outdoor unit 10 or the monitor mode command from the indoor unit 20 has been received. If it is determined that the detection of the outdoor unit 10 or the monitor mode command from the indoor unit 20 has been received, the process proceeds to step S35. In step S35, transmission to the indoor unit 20 is interrupted, and the process returns to step S22. On the other hand, if it is determined that the detection of the outdoor unit 10 or the monitor mode command from the indoor unit 20 has not been received, the process proceeds to step S36. In step S36, transmission to the indoor unit 20 is completed and the process returns to step S21.

  If the transmission capability of the transmission / reception data between the outdoor unit 10 and the indoor unit 20 is sufficient, it is possible to transmit monitor image data, compressed still image data and audio data at the same time, and further compress the data. Is also unnecessary.

  FIG. 8 is a diagram showing an internal block diagram of an outdoor unit different from the outdoor unit shown in FIG. In addition, the same code | symbol is attached | subjected and demonstrated to the same component as the component of the outdoor unit 10 shown in FIG.

  The outdoor unit 110 shown in FIG. 8, which will be described in detail later, is a part of the outdoor unit 110 that includes a circuit portion that detects a dog bark using the microphone 11a and a circuit portion that detects vibration using the angular velocity sensor 11i. The first switch 112_3, the second switch for supplying power to the entire indoor unit 110 in response to detection of dog bark by the microphone 11a and detection of vibration by the angular velocity sensor 11i. The switches 112_4 and MPU 112_2 (corresponding to an example of the power supply control unit referred to in the present invention) are provided.

  FIG. 8 shows a block diagram of the camera head unit 111 and a block diagram of the control transmission / reception unit 112 constituting the outdoor unit 110.

  The camera head unit 111 includes a lens 11e, a CCD 11j, a CDS A / D unit 11k, a TG unit 11m, a flash light emitting unit 11h, a light emission control / boost circuit 11p, a flash capacitor 11n, a speaker 11b, a speaker amplifier 11r, and a light light emitting unit 11g. A circuit portion 111_1, an angular velocity sensor 11i, a microphone 11a, a microphone amplifier 11q, and a solar panel 11f are provided.

  On the other hand, the control transmission / reception unit 112 includes a partial circuit 112_1a that performs signal processing, blur correction processing, compression processing, memory control, media recording control, A / D, D / A conversion processing, blur detection, voice detection, and volume detection. , A partial circuit 112_1b for performing audio frequency analysis and a DSP 112_1 having an AD unit 112_1c.

  The control transmission / reception unit 112 includes a transmission / reception antenna 12a, a recording medium 12h, and a storage unit 112_6 including the internal memory 12i, a transmission / reception module 12k, an MPU 112_2, a first switch 112_3, a second switch 112_4, a battery 12n, and a power supply circuit 112_5. , A power switch 12d is provided. The power supply circuit 112_5 is supplied with power from the battery 12n and the solar panel 11f.

  Here, the power supply system of the outdoor unit 110 includes a power supply system A that is turned on / off by the first switch 112_3 and a power supply system B that is turned on / off by the second switch 112_4. The power supply system A is a circuit system (angular velocity sensor 11i, microphone 11a, microphone amplifier 11q, partial circuit 112_1b, AD unit 112_1c) necessary for the outdoor unit 110 to perform detection. On the other hand, the power supply system B includes a circuit portion 111_1, a partial circuit 112_1a, a recording medium 12h, and an internal memory 12i.

  The first switch 112_3 and the second switch 112_4 are on / off controlled by the MPU 112_2. The MPU 112_2 and the transmission / reception module 12k are always supplied with power when the power switch 12d is turned on, and can communicate with the indoor unit 10 at any time. As described above, by dividing the power supply system and controlling each with the first and second switches 112_3, 112_4, etc., in the monitoring state, it is possible to supply power only to the portions necessary for detection. Power consumption of the battery 12n and the solar panel 11f of the outdoor unit 110 can be suppressed. The first and second switches 112_3 and 112_4 only need to be capable of opening and closing currents such as electronic switches and relays. Further, the system may be separated by stopping the clock in the IC for each circuit block. Further, on / off control may be performed by an individual circuit block such as a converter in the power supply circuit.

  FIG. 9 is a flowchart of power control of the outdoor unit shown in FIG.

  When the power switch of the outdoor unit 110 is turned on, a signal for turning on the first switch is generated from the MPU in step S41. Then, in step S42, the blur detection, voice, volume detection, and voice frequency analysis circuits in the microphone, the angular velocity sensor, the AD unit, and the DSP are operable and set to a monitoring state. Next, in step S43, it is determined whether a detection signal has been received or a monitor mode command from an indoor unit has been received. If it is determined that the detection signal is not received or the monitor mode command from the indoor unit is not received, step S43 is repeatedly executed. On the other hand, if it is determined that the detection signal has been received or the monitor mode command from the indoor unit has been received, the process proceeds to step S44.

  In step S44, the second switch is turned on and the process proceeds to step S45. In step S45, the monitor mode is set, and the process proceeds to step S46.

  In step S46, it is determined whether a monitor mode end command is received from the indoor unit. If it is determined that the monitor mode end command from the indoor unit has not been received, step S46 is repeatedly executed. On the other hand, if it is determined that the monitor mode end command is received from the indoor unit, the process proceeds to step S47. In step S47, the second switch is turned off and the process returns to step S42.

  FIG. 10 is a diagram showing an outline of a system when the second embodiment of the surveillance camera system of the present invention is applied to a home security system.

  FIG. 10 shows an outdoor unit 10 equipped with a camera head unit 11, a control transmission unit 12, and a harness 13, and an interphone 220 equipped with a transmission / reception antenna 221 (another example of a monitor unit according to the present invention) attached to a dog. A surveillance camera system 2 is shown. The angle of view of the camera of the camera head unit 11 is set so as to roughly cover the range to be monitored. Note that it may be variable in the pan and tilt directions.

  A fixed telephone 240 that communicates with the intercom 220 is provided indoors. On the other hand, an outdoor unit 210 having a lens 211, a light 212, a microphone / speaker 213, and an interphone 230 with a camera are provided outdoors. The outdoor unit 210 and the interphone with camera 230 communicate with the interphone 220.

  This surveillance camera system 2 is mainly a security system when a user (a landlord, etc.) is absent, and is characterized by a surveillance (warning) state due to a dog's intimidation or warning bark, a manager on the go, etc. This is a system that notifies the mobile phone 260 of the warning detection and transmits the image and the sound. Furthermore, the voice of the administrator can be received and output to the speaker of the microphone / speaker 213.

  In addition, it is preferable that the intercom 220 which is an indoor unit is also used as an interphone master unit with a monitor. Alternatively, the fixed telephone 240 may also be used as an indoor unit. The interphone 220 is connected to the fixed telephone 240 with a cable, and can transmit and receive data such as images and sounds. Naturally, the fixed telephone 240 is connected to a public line or the Internet, and can be connected to a mobile phone 260, a mobile PC (not shown), a PDA, etc. by a base station or a server, and further connected to a security management organization such as a security company. Is also possible. The configuration and detection means of the outdoor unit 10 are as described above. The outdoor unit 210 is an installation type, and the internal configuration is the configuration excluding the angular velocity sensor, the blur correction function, and the flash light emitting unit of the outdoor unit 10. Transmission / reception of signals to / from the intercom 220 is performed by wire, but may be performed wirelessly. The detection method of the outdoor unit 210 is substantially the same as the flow of FIG. 6, but the means for detecting the shake of the angular velocity sensor is omitted. Here, the outdoor unit 10 and the outdoor unit 210 are used together, but only the outdoor unit 10 may be used. In this embodiment, a warning detection report is received by a mobile phone or the like of a manager who is away from home, and a line is connected to enable transmission / reception of images and voices when a call is made. In this state, the images and sounds of the outdoor unit 10 and the outdoor unit 210 are sent to the mobile phone 260, and the situation can be confirmed. Further, the voice of the mobile phone 260 is output to the speakers of the outdoor unit 10 and the outdoor unit 210. In addition, the administrator may make a contract with the security company and report the warning detection to the security company.

  FIG. 11 is a control flowchart in the home security system to which the surveillance camera system shown in FIG. 10 is applied.

  Turn on the system. Thereby, all the power supplies of the outdoor unit, intercom, and fixed telephone are turned on. First, in step S51, the monitoring state is set. Next, in step S52, a warning detection is generated based on the dog's bark or roar in the outdoor unit. Next, in step S53, a warning notice is transmitted to the intercom. The intercom transmits this fact to the outdoor unit 10. Furthermore, in step S54, the camera angle of view of the outdoor unit 10 is automatically set to the direction of the generated sound source, and the process proceeds to step S55. In addition, it can replace with the outdoor unit 10 and can perform the said operation with the outdoor unit 210. FIG.

  In step S55, it is determined whether or not the outside line notification setting is turned on by the intercom. If it is determined that the outside line notification setting is off, the process returns to step S51. On the other hand, if it is determined that the outside line notification setting is ON, the process proceeds to step S56.

  In step S56, the outdoor unit is set to the monitor mode. Next, in step S57, the intercom instructs the fixed telephone to send the set telephone number. Here, the on / off setting of the outside line notification and the telephone number of the outside line notification destination are set in the menu setting items of the intercom, and the setting contents are held in the internal memory of the intercom. Further, in step S58, the fixed telephone transmits a call signal to the set telephone number and proceeds to step S61.

  On the other hand, on the mobile phone side, the incoming call is received in step S59, and then the communication state is set in step S60.

  In step S61, it is determined whether or not a line is connected. If it is determined that the line is not connected, the process returns to step S58. On the other hand, if it is determined that the line is connected, the process proceeds to step S62. In step S62, the image and sound of the outdoor unit are transmitted to the mobile phone side. Also, it receives voice from the mobile phone side and outputs it to the speaker. On the mobile phone side, an image is displayed on the display screen and sound is output from the speaker in step S63 executed in combination with step S62. Also, the audio signal is transmitted to the intercom side. In step S64, the administrator operates a specific operation member (such as one of the number keys) of the mobile phone to confirm the transmitted image and sound of the mobile phone, and to record the image. Sending a message indicating that

  In step S65, it is determined whether a recording instruction has been received. If it is determined that the recording instruction has been received, the recording instruction is transmitted from the intercom to the outdoor unit in step S66. Further, in step S67, an image is recorded on the recording medium, and the process proceeds to step S68. If it is determined in step S65 that a recording instruction has not been received, the process also proceeds to step S68.

  In step S68, it is determined whether or not a continuous flash emission instruction is received in step S69 executed on the mobile phone side. If it is determined that the continuous flash emission instruction has been received, the process proceeds to step S70. In step S70, the flash is continuously emitted for a predetermined time. Thereby, the built-in flash of the outdoor unit can be forcibly continuously emitted for a certain period of time regardless of the brightness of the outside world (day and night) according to the instructions of the administrator. Note that no image is recorded. At the same time, a warning sound may be generated from the speaker. Thereby, the alertness of a suspicious person can be increased and the crime prevention effect can be heightened.

  Further, the process proceeds to step S71. In addition, also when it determines with not receiving the continuous flash light emission instruction | indication, it progresses to step S71.

  In step S71, it is determined whether or not the line is disconnected. On the other hand, in step S72 on the cellular phone side, transmission indicating that the communication state has been completed is performed. If it is determined that the line has been disconnected in response to this, the process returns to step S51. On the other hand, if it is determined that the line is not disconnected, the process returns to step S62.

  FIG. 12 is a diagram illustrating a state in which the field angle of the camera of the outdoor unit is automatically adjusted.

  The outdoor unit 300 shown in FIG. 12 includes a camera 310 having a lens 310a. The outdoor unit 300 also includes microphones 311a, 311b, and 311c. The microphones 311a, 311b, and 311c have microphone directivities indicated by dotted lines A, B, and C. FIG. 12 also shows a generated sound source 312. Furthermore, directions a, b, c, d, and e for setting the pan angle of the camera 310 are also shown.

  This outdoor unit 300 makes it possible to change the angle of view of the camera 310 from the outside by operating a mobile phone. Further, the angle of view of the camera 310 is automatically set in the direction of the bark of the dog. By providing the adjusting means, it becomes possible to catch the suspicious person in the camera 310 earlier. As shown in FIG. 12, in the outdoor unit 300, three microphones 311a, 311b, and 311c are installed in three directions so that the directivity of the microphones substantially matches the pan direction swing angle of the camera 310. The dog bark is collected simultaneously by the three microphones 311a, 311b, and 311c, and the camera 310 is automatically panned based on the magnitude relation of the respective volumes.

  FIG. 13 is a flowchart for automatic adjustment of the angle of view of the camera shown in FIG.

  First, in step S81, when a volume higher than the specified value is generated in any of the microphones 311a, 311b, 311c, the process proceeds to step S82. In step S82, the volume levels of the microphones 311a, 311b, and 311c are set to M1, M2, and M3, respectively, and the highest volume level is selected.

  If M1 is the highest level, in step S83, M2 is compared with a value obtained by multiplying M1 by a coefficient K (K · M1). Here, K is a value of 1 or less, and is determined by the directivity of the microphone, the mounting direction, and the like. If M2 is less than the value (K · M1), it is determined that no sound source exists in the pan angle setting direction b (denoted as pan angle b), and the process proceeds to step S84. In step S84, the camera is set in a pan angle setting direction a (described as pan angle a), and the process returns to step S81. On the other hand, if M2 is equal to or greater than the value (K · M1) in step S83, it is determined that there is no sound source in the direction a, and the process proceeds to step S85. In step S85, the camera is set to the pan angle b and the process returns to step S81.

  If M2 is the highest level in step S82, M1 is compared with the value (K · M2) in step S86. If M1 is greater than or equal to the value (K · M2), the process proceeds to step S85. In step S85, the camera is set to the pan angle b and the process returns to step S81. On the other hand, if M1 is less than the value (K · M2), the process proceeds to step S87. In step S87, M3 is compared with the value (K · M2). If M3 is less than the value (K · M2), the process proceeds to step S88. In step S88, the camera is set in a pan angle setting direction c (described as pan angle c), and the process returns to step S81. On the other hand, if M3 is greater than or equal to the value (K · M2), the process proceeds to step S89. In step S89, the camera is set in a pan angle setting direction d (described as pan angle d), and the process returns to step S81.

  Furthermore, if M3 is the highest level in step S82, M2 is compared with the value (K · M3) in step S90. If M2 is greater than or equal to the value (K · M3), the process proceeds to step S89. In step S89, the camera is set to the pan angle d and the process returns to step S81. On the other hand, if M2 is less than the value (K · M3), the process proceeds to step S91. In step S91, the camera is set in a pan angle setting direction e (described as pan angle e), and the process returns to step S81. In this way, the pan angle of the camera is automatically set. After automatic setting, the sound volume above the specified value is monitored again and this flow is repeatedly performed, so that it is possible to follow the sound source when it moves. For this reason, the direction in which the suspicious person is located can be determined, and the angle of view of the camera can be adjusted in that direction. Therefore, it is not necessary for the administrator to manually adjust the angle of view of the camera to find a suspicious person, and the target angle of view can be quickly set.

  FIG. 14 is a diagram showing an internal block diagram of a dummy camera unit in the surveillance camera system.

  FIG. 14 shows a block diagram of the head unit 411 and a block diagram of the control unit 412 constituting the dummy camera unit 410. The head unit 411 and the control unit 412 are connected by a cable 415.

  The head unit 411 includes an angular velocity sensor 11i, a dummy lens 411e, a flash light emitting unit 11h, a light emission control / boost circuit 11p, and a flash capacitor 11n. The head unit 411 includes a microphone 11a, a microphone amplifier 11q, a speaker 11b, a speaker amplifier 11r, a light emitting unit 11g, and a solar panel 11f.

  On the other hand, the control unit 412 includes a DSP 412g, an MPU 412j, a power supply circuit 12m, a power switch 12d, a battery 12n, and a solar panel 12f.

  FIG. 15 is a control flowchart of the detection operation of the camera unit shown in FIG.

  When the power of the camera unit 410 shown in FIG. 15 is turned on, the monitoring state is set in step S101. In addition, a count counter that counts the number of times the dog barks within a predetermined time is set to zero. Further, in order to measure the predetermined time, the set value of the timer counter that executes the countdown after the barking state is detected is set to M.

  Next, in step S102, monitoring of the microphone volume level is started, and in step S103, monitoring of the shake level of the angular velocity sensor is started.

  Next, in step S104, it is determined whether or not the microphone volume level is equal to or higher than a specified value. If it is determined that the microphone volume level is less than the specified value, the process returns to step S102. On the other hand, if it is determined that the microphone volume level is greater than or equal to the specified value, the process proceeds to step S105.

  In step S105, it is determined whether or not the angular velocity sensor shake level detection is set. If it is determined that the shake level detection of the angular velocity sensor is not set, the process proceeds to step S107 as it is. On the other hand, if it is determined that the shake level detection of the angular velocity sensor is set, the process proceeds to step S106.

  In step S106, it is determined whether the shake level of the angular velocity sensor is equal to or greater than a specified value. If it is determined that the value is less than the specified value, the process returns to step S102. On the other hand, if it is determined that the value is equal to or greater than the specified value, the process proceeds to step S107 in order to perform frequency analysis of the acquired voice (bark).

  In step S107, it is determined whether frequency analysis detection is set. If it is determined that the frequency analysis detection is not set, the process proceeds to step S109 as it is. On the other hand, if it is determined that the frequency analysis detection is set, the process proceeds to step S108.

  In step S108, it is determined whether or not the frequency analysis result matches a specific pattern (frequency distribution pattern of bark due to the threat of a dog). If it is determined that the pattern does not match the specific pattern, the process returns to step S102. On the other hand, if it is determined that the pattern matches the specific pattern, the process proceeds to step S109 because warning is detected.

  In step S109, it is determined whether or not the number of detections of the number counter is set to 2 or more. If it is determined that the number of detections is not set to 2 or more, the process proceeds to step S115 described later. On the other hand, if it is determined that the number of detections is set to 2 or more, the process proceeds to step S110. In step S110, it is determined whether or not the timer counter is zero. If it is determined that the timer counter is 0, the process proceeds to step S111. In step S111, the number counter is set to 0, the set value of the timer counter is set to M, and the process returns to step S102. On the other hand, if it is determined that the timer counter is not 0, the process proceeds to step S112. In step S112, the timer counter setting value is set to M and countdown is started. Next, in step S113, 1 is added to the number counter (+1), and the process proceeds to step S114. In step S114, it is determined whether the number counter is equal to the detection number N or not. If it is determined that the number counter is not equal to the detection number N, the process returns to step S102. On the other hand, when it is determined that the number counter is equal to the detection number N, the process proceeds to step S115.

  In step S115, flash light is emitted continuously for a certain period of time and the light is turned on, and a warning sound is output from the speaker. Next, in step S116, after a certain period of time, the flash emission is stopped, the light is turned off, the warning sound is stopped, and the process returns to step S101.

It is a figure which shows the structure of 1st Embodiment of the surveillance camera system of this invention. It is a figure which shows the structure of the outdoor unit shown in FIG. It is a figure which shows the structure of the indoor unit shown in FIG. It is a figure which shows the internal block diagram of the outdoor unit shown in FIG. It is a figure which shows the internal block diagram of the indoor unit shown in FIG. It is a control flowchart of the detection operation of the outdoor unit shown in FIG. It is an operation | movement flowchart at the time of the still image recording of an outdoor unit. It is a figure which shows the internal block diagram of the outdoor unit different from the outdoor unit shown in FIG. It is a flowchart of the power supply control of the outdoor unit shown in FIG. It is a figure which shows the outline | summary of a system at the time of applying 2nd Embodiment of the surveillance camera system of this invention to the system of a home security. 11 is a control flowchart in a home security system to which the surveillance camera system shown in FIG. 10 is applied. It is a figure which shows a mode that the angle of view of the camera of an outdoor unit is adjusted automatically. 13 is a flowchart for automatic adjustment of the angle of view of the camera shown in FIG. 12. It is a figure which shows the internal block diagram of the dummy camera unit in a surveillance camera system. It is a control flowchart of the detection operation of the camera unit shown in FIG.

Explanation of symbols

1, 2 Surveillance camera system 10, 110, 210, 300 Outdoor unit 11, 111 Camera head 11a, 27, 311a, 311b, 311c Microphone 11b, 23 Speaker 11c Pan adjustment mechanism 11d Tilt adjustment mechanism 11e, 211, 310a Lens 11f , 12f Solar panel 11g Light emitter 11h Flash emitter 11i Angular velocity sensor 11j CCD
11k CDS A / D section 11m TG section 11p Light emission control / boost circuit 11q, 42 Microphone amplifier 11r, 43 Speaker amplifier 12, 112 Control transmission section 12a Transmission / reception antenna 12b, 36 Battery slot 12c, 38 Media slot 12d Power switch 12g, 44 , 112_1,412g DSP
12h, 37 Recording media 12i, 45 Internal memory 12j, 47, 112_2, 412i MPU
12k transmission / reception module 12m, 48, 112_5 power supply circuit 12n, 35 battery 13 harness 14 buckle 15,415 cable 16 cushioning material 20 indoor unit 21, 221 transmission / reception antenna 22 image display unit 24 power on button 25 recording button 26 monitor on button 28 menu Display button 29 Play / forward button 30 Play / return button 31 LED
32 Microphone ON button 33 Earphone jack 34 DC input terminal 40 Operation unit 41 Transmission / reception module 46 LCD driver 111_1 circuit part 112_1a, 112_1b partial circuit 112_1c AD part 112_3 first switch 112_4 second switch 112_6 storage part 212 light 213 microphone / speaker 220 Interphone 240 Fixed telephone 230 Interphone with camera 260 Mobile phone 310 Camera 312 Sound source 410 Camera unit 411 Head unit 411e Dummy lens 412 Control unit

Claims (7)

A camera unit that includes a photographing optical system, an image sensor, and a first wireless communication unit, is attached to a dog, receives a photographing trigger, starts moving image photographing, generates an image signal, and wirelessly transmits, and a second wireless communication unit And a monitor unit that receives an image signal transmitted from the camera unit and is fixedly installed and displays an image.
A surveillance camera system, wherein the camera unit includes a sound sensor and starts photographing using a dog bark as a photographing trigger.   The camera unit further includes a vibration sensor for detecting the vibration of the camera unit, and starts photographing using the detection of vibration by the vibration sensor in addition to the dog bark detected by the sound sensor as a photographing trigger. The surveillance camera system according to claim 1, wherein the surveillance camera system is provided.   The camera unit further includes a counter that counts the number of barks within a predetermined time, and starts shooting when the sound sensor detects a dog bark more than a predetermined number of times within a predetermined time as a shooting trigger The surveillance camera system according to claim 1, wherein: The monitor unit includes a still image capturing instruction unit that instructs the camera unit to capture a still image in response to a user operation;
The camera unit prohibits still image shooting during a period in which a bark is detected by the sound sensor, and performs still image shooting at the end of the period when a still image shooting instruction is received within the period. The surveillance camera system according to claim 1. The monitor unit includes a still image capturing instruction unit that instructs the camera unit to capture a still image in response to a user operation;
The camera unit prohibits still image shooting during a period in which bark is detected by the sound sensor and / or a period in which vibration is detected by the vibration sensor, and issues a still image shooting instruction within the period. 3. The surveillance camera system according to claim 2, wherein when received, a still image is taken at the end of the period.   The camera unit supplies power only to a part of the camera unit including a circuit portion for detecting the dog bark by the sound sensor, and receives the detection of the dog bark by the sound sensor. The surveillance camera system according to claim 1, further comprising a power supply control unit that supplies power to the entire unit.   The camera unit supplies power only to a part of the camera unit including a circuit part for detecting a dog bark by the sound sensor and / or a circuit part for detecting vibration by the vibration sensor. 3. A power supply control unit that supplies electric power to the entire camera unit in response to detection of a bark of a dog by the sound sensor and / or detection of vibration by the vibration sensor. Surveillance camera system.

Images