JP4407414B2 - Home device in remote monitoring system - Google Patents

Description

  The present invention relates to an in-home device used in a remote monitoring system that enables a photographed image in the house to be confirmed from outside the house in order to watch the situation of children, elderly people, pets, and the like in the house from the outside.

  2. Description of the Related Art Conventionally, there is known a remote monitoring system that allows a photographed image inside a house to be confirmed from outside the house. For example, a monitoring area where a pet or the like in a home is photographed with a home device with a built-in camera installed in the home, the image is transmitted to a server device via a telephone line and the Internet, and the image is transmitted from the server device to the Internet. In addition, the image captured in the house is displayed on the portable terminal by transmitting it to the portable terminal via the telephone line, and the image captured by the camera of the household device is captured as a still image in response to an instruction from the portable terminal. Is transmitted to the server device.

  Operation instructions to the home device, such as in-home shooting with the camera of the above-mentioned home device, image capture, etc. If the device goes to the area where the control command of the server device is stored, it can be acquired immediately. However, in a system in which the home device is connected to the server device by dial-up connection, the user needs to inform the home device of the start timing of the dial-up connection. This is because the control commands such as camera shooting stored in the server device are selected and stored in a timely manner by the user operating the mobile terminal (or personal computer) with his / her own intention. It is impossible to know at what timing the control command is stored.

  Therefore, the user performs a storage operation of a desired control command to the server device, and then calls the home device to prompt the dial-up connection. Here, since the information necessary for the home device is only the timing of dial-up connection to the server device (the server device address and the like are stored in the home device in advance), the so-called short call (ring signal is 1) is stored in the home device. (The call that disconnects after reaching 2 calls without ringing) If the home device recognizes that there is a short call, it will trigger a dial-up to the server device The connection is started.

  Various ring signal counting methods similar to the short call discrimination method have been developed as technologies for telephone control. For example, in Patent Document 1, in order to be able to install a plurality of telephones with an automatic incoming call function on the same line, when the number of ringing signals reaches a set number, the telephone line is closed and the number is set. If the call signal pause time exceeds the set allowable time even if the number is less than the number of times, depending on whether a telephone with an automatic incoming call function is installed, the processing is stopped or the telephone line is closed. Thus, there is disclosed a technique for handling depending on whether to continue processing.

  In Patent Document 2, for the same purpose as Patent Document 1, the telephone control device is provided with means for detecting whether the telephone line is on-hook or off-hook, and the telephone control is performed based on the detection result of the detection means. A technique for starting the operation is disclosed.

On the other hand, there is a technique called “number display” that displays a telephone number on the transmission side on a telephone that has received an incoming call. In this technology, before the central office sends a ringing signal for a normal call to the telephone on the receiving side, a ring signal with a short interval (hereinafter referred to as a ring signal corresponding to a number display) that is different from the ringing signal for the above-mentioned ringing first. The telephone number information is transmitted from the telephone office to the telephone that has received the ring signal corresponding to the number display, and the other party's telephone number is displayed on the incoming telephone. Thereafter, once the line is opened, a ringing signal for a normal call is sent again from the telephone office to the telephone on the receiving side, and a ringing sound for calling is generated on the telephone on the receiving side. If the receiving phone is a number display-compatible phone, no ringer sound is generated for a ring signal compatible with the number display.
JP-A-1-238255 Japanese Patent Laid-Open No. 1-129646

  As described above, in the case of the number display support, since the ringing signal for ringing and the ring signal for number display are included in one incoming call, the simple short call discrimination function described above accurately discriminates the short call. I can't. That is, since the ring signal corresponding to the number display sent first and the ring signal for calling cannot be distinguished, the number of ring signals corresponding to the number display and the number of ring signals for calling are counted together. As a result, the total number of ring signals is often three or more. Therefore, if the number of ring signals is only the number of ring signals, the incoming call is a short call (1-2 times). If the ring signal corresponding to the number display accidentally occurs more than three times, it will be recognized that it is not a short call.

  In the remote monitoring system, if it is not properly determined whether the incoming call is a short call, the user makes a short call to the home device, but the home device dials up to the server device. Without connecting (without acquiring a control command from the server device), the user will not be able to see the image in the house on his / her terminal, no matter how long it waits.

  Patent Documents 1 and 2 do not describe a specific method of counting and distinguishing the ring signal corresponding to the number display and the ring signal corresponding to the call when there is a ring signal corresponding to the number display. In addition, the ring signal corresponding to the number display and the ringing signal for a normal call are different in the time for which one ring signal lasts (0.5 seconds for the ring signal corresponding to the number display and 1 second for the ringing signal for the call). Therefore, a method of measuring this and not counting when the duration of the ring signal itself is short is conceivable. However, in order to realize this method, another processing step (processing means) for identifying the duration of the ring signal is possible. And the algorithm itself for short call discrimination needs to be changed, which increases the cost.

  The present invention is a home device in the remote monitoring system as described above, and even if the incoming signal includes a ring signal corresponding to the number display, only the ring signal of the call is accurately counted and It is an object of the present invention to provide an in-home device in which a short call is accurately discriminated, and as a result, the remote operation of the in-home device in the remote monitoring system is smoothly performed.

  According to the first aspect of the present invention for solving the above-described problems, a home device that transmits a home image taken with a camera via a telephone line that can be connected to the Internet and dial-up, and a home device that is connected to the Internet via the Internet and the telephone line. A server device that transmits a control command including camera shooting and other operations to the in-home device, receives an image from the in-home device, and transmits the image to a user terminal with a browser function via the Internet; An in-home device used in the remote monitoring system provided with a connection means for connecting to the server device and connecting to a telephone terminal outside the home by dial-up, and counting a ring signal of an incoming signal received by the connection means If the incoming call is interrupted when the counter value is less than a predetermined small value, A dial-up connection to the server device and acquiring a control command stored in the server device; a time measuring device for measuring an elapsed time from the end of each ring signal; and an elapsed time by the time measuring device is a first time. Count-up means for adding 1 to the counter value when a new ring signal is detected within a set time, and the elapsed time by the time measuring means is not less than the first set time and within the second set time Count reset means for returning the value of the counter to 1 when a new ring signal is detected, and when the incoming signal is a signal including a ring signal corresponding to a number display, calling from the ring signal corresponding to the number display The transition to the ring signal is identified by the count reset means, and the ring signal after the transition is Characterized by counting up as a signal.

According to a second aspect of the present invention, there is provided a home device that transmits a home image captured using a camera via a telephone line that can be connected to the Internet and a dial-up connection, and a camera connected to the Internet via the Internet and the telephone line. A remote monitoring system comprising: a server device that transmits a control command including photographing and other operations, receives an image from the in-home device, and transmits the image to a user terminal with a browser function via the Internet If the incoming call is detected by detecting a ring signal and the number of ring signals is less than a predetermined number of times, a dial-up connection is made to the server device. a control means for obtaining a control command stored in the server device, wherein, Nan Ring signal of the call from over display support of the ring signal
An identification means for identifying a transition to issue, if the incoming signal is a signal including a ring signal number display correspondence, only the number of subsequent ring signal when said identified as transition had by the identification means Counting up anew, the identification means end each ring signal
The elapsed time from one to the next ring signal is longer than the first set time and is longer than the second set time
If it is too short, the transition from the ring signal corresponding to the number display to the ring signal of the call
It is characterized by judging that there was a line .

According to a third aspect of the present invention, in the in-home device in the remote monitoring system according to the second aspect , the first set time is set to be slightly longer than the interval between ring signals of the call, and the second set time Is characterized in that it is slightly longer than the time required to acquire the destination telephone number information following the ring signal corresponding to the number display.

  According to the present invention, even in the remote monitoring system, even if the incoming signal to the in-home device includes a ring signal compatible with the number display, only the ringing signal of the call is accurately counted to accurately determine the short call. As a trigger, the control command acquisition operation from the in-home device to the server device is surely performed, and as a result, the remote operation from the outside of the in-home device in the remote monitoring system is smoothly performed. In addition, the processing process (processing means) for determining short calls can be adapted to the number display without significant change, so that the cost of the home device is not increased.

  Hereinafter, a remote monitoring system and a home device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the overall configuration of a remote monitoring system 1 (hereinafter, this system 1). The present system 1 is a system for confirming an in-house image from outside the house and watching the situation inside the user's house from outside the house. The user can perform processing such as home shooting and alarm utterance from a remote place by using the home device 2 installed in the user home.

  The system 1 includes a large number of in-home devices 2 of a large number of users in actual operation, and each user can obtain an image from each in-home device 2 belonging to each. Some of the in-home devices 2 can be always connected to the Internet, and some of the other devices can be connected to the Internet 7 by dial-up. FIG. 1 shows a home device 2 connected to the Internet 7 by dial-up. The present invention relates to the case of connecting to the Internet 7 via the telephone line 5 capable of dial-up connection.

  The system 1 includes an in-home device 2 that transmits an in-home image captured by the camera 6 via the Internet 7 and a telephone line 5 that can be dialed up, and is connected to the Internet 7 via the Internet 7 and the telephone line 5. A server device that transmits a control command including a camera photographing operation and other operations to the in-home device 2, receives an image from the in-home device 2, and transmits the image to the user terminal 3 with a browser function via the Internet 7. 4 is provided. The in-home device 2, the user terminal 3, and the server device 4 are each connected to the Internet 7 via the ISP 8.

  The server device 4 manages and controls information related to the in-home device 2 and the user terminal 3 belonging to the in-home device 2 for each attribution. For this reason, the server device 4 includes a database DB in which the telephone number of the user terminal 3 and the telephone number used by the modem built in the user-specific home device 2 are recorded. The server device 4 also includes an FTP server for file transfer, an application server that converts files into WEB contents, a mail server that distributes mail to user terminals, and the like (not shown).

  The server device 4 further includes command storage means 4a for receiving and storing control commands from the user via the user terminal 3 (FIG. 4). The server device 4 receives the command execution result from the in-home device 2 and converts it to WEB content, and notifies the user terminal of the command execution completion.

  The input of the control command to the command storage unit 4a is performed as follows. When the user operates the user terminal 3 and logs in to the dedicated home page on the server device 4, the server device 4 transmits a menu for selecting a command for controlling the home device to the user terminal 3, and the user selects the menu. Thus, the control command is selected and determined. The server device 4 stores the control command selected and determined as described above in the command storage means 4a, and automatically dials the user terminal 3 to the telephone number of the in-home device 2 embedded in the home page. Send a prompt message. The user sees the message and makes a call to the home device 2 by auto dial.

  The in-home device 2 is provided with an alarm generating device and a sensor, which will be described later, in addition to the camera 6, and is installed in an appropriate position in the home by a user, for example, a room where a child, an elderly person, a pet, or the like is located like a general home appliance. Then, it receives a control command including a camera photographing operation, an alarm utterance operation and other operations from the server device 4 and executes the command. As described above, the in-home device 2 of interest in the present invention is connected to the server device 4 via the telephone line 5 capable of dial-up connection, and therefore, for example, the telephone device 2a for telephone calls is used as a telephone used by the in-home device. Can be shared.

  The home device 2 is disconnected by the user's operation without making a call after the automatic dialing performed by the user for the home device 2 is repeated a predetermined number of times (in this embodiment, once) (short call). Then, using this short call as a trigger (instruction from the user), the telephone line 5 that can be dialed up is dialed up to the ISP 8 to communicate with the server device 4.

  The in-home device 2 communicates with the server device 4 that is dial-up connected, obtains a control command from the command storage means 4a of the server device 4, performs an operation such as shooting according to the content of the obtained control command, and then the server device 4 Sends the command execution result to. That is, the instruction from the user to the in-home device 2 is an instruction to acquire and execute the control command, thereby realizing remote operation of the in-home device 2 by the user.

  The user terminal 3 only needs to have a function of logging in to a dedicated home page on the server device 4 and a browser function for browsing images from a remote location via the Internet 7, such as a mobile phone or a mobile terminal (PDA). In addition, personal computers are also used. The portability of the user terminal 3 is not required when watching a single relative living in a remote place from the home. In addition, the remote location indicates not only whether the distance is far but also the difficulty in approaching.

  Next, with reference to the arrows (A to E) shown in FIG. 1 and the timing chart of FIG. 2, the flow until the user of the system 1 browses the image data will be described. First, the user uses the user terminal 3 to send a control command for the home device to the server device 4 via the Internet 7 (arrow A in FIG. 1, FIG. 2 # 1). After storing the control command, the server device 4 sends a message prompting the user terminal 3 to auto-dial to the in-home device 2 (arrow B in FIG. 1). As a result, the user calls the telephone line 5 of the home device 2 using the user terminal 3. This call is disconnected by a short call by the user without reaching a call (arrow C in FIG. 1, FIG. 2 # 2).

  When there is a short call on its own telephone line 5, the in-home device 2 dials up to the ISP 8 to communicate with the server device 4 (FIG. 1 arrow D, FIG. 2 # 3), and the server device requests the user's authentication. The identification number ID is transmitted to 4 (FIG. 1 arrow D, FIG. 2 # 4). After the authentication by the server device, the in-home device 2 acquires the control command stored in the storage unit 4a of the server device 4 (arrow E in FIG. 1, FIG. 2 # 5).

  The in-home device 2 executes the acquired control command, for example, in-home image capturing command, and transmits the captured image data to the server device 4 to disconnect the line (FIG. 1 arrow D, FIG. 2 # 6). The server device 4 transmits the image data and the like transmitted from the in-home device 2 to the user terminal 3 in response to a request from the user terminal 3 (arrow B in FIG. 1, FIG. 2 # 7). In this way, the user can browse the home image displayed on the user terminal 3. The home device 2 may disconnect the dial-up line after acquiring the control command, and may make a dial-up connection again when transmitting the captured image data or the like to the server device 4. For example, it is desirable to disconnect the line once when image shooting is performed a plurality of times at regular time intervals or when shooting is performed with changing shooting conditions such as an angle.

  Here, with reference to FIG. 3, the incoming signal received by the in-home device 2 when the telephone line 5 is set to support number display will be described. That is, when the line 5 is compatible with the number display, as shown in FIGS. 3C and 3D, first, a short duration (0.5 seconds) indicating that the display is compatible with the number display. Ring signal Rn is sent from the telephone office at a short interval (0.5 seconds) Dn, whereby the telephone line 5 is closed and the in-home apparatus 2 is connected to the telephone office, and the telephone number information N of the caller is transmitted from the telephone office. Is sent to the in-home device 2. The time D required to receive the telephone number information N is usually 3 to 10 seconds. When reception of the telephone number information N (transmission when viewed from the central office side) is completed, the line 5 is temporarily disconnected from the central office side, and a normal ringing ring Rc signal is immediately sent from the central office. This ring signal Rc has a longer interval (2 seconds) Dc with a longer duration (1 second) than the ring signal Rn corresponding to the number display. FIG. 3 (d) shows a short call in which the ringing signal Rc is one and the incoming call is terminated. FIG. 3 (c) shows a normal call with three ring signals Rc. It should be noted that the number of ringing ring signals Rc that can be called as a normal call instead of a short call can be changed by setting, but in this embodiment, the incoming call is disconnected after one ringing signal Rc. Set to short call.

  Further, when the telephone line 5 is not compatible with the number display, the incoming signal shown in FIGS. 3A and 3B is transmitted from the telephone station to the in-home device 2. That is, a ringing ring signal Rc (duration 1 second, interval Dc 2 seconds) that does not have a short ring signal Rn corresponding to the number display is transmitted. FIG. 3 (b) shows a short call when the number display is not supported, and FIG. 3 (a) shows the normal call.

  The hardware configuration of the home device 2 will be described with reference to FIG. The in-home device 2 of the present embodiment includes a control unit 11 composed of a microcomputer, and performs a predetermined operation according to a program stored in a ROM in the control unit 11, a camera 6, an alarm generation device 12, an operation state display device 13, A sensor (human body sensor) 14 and a power supply device 16 are connected. An image taken by the camera 6 according to the control command is temporarily stored in the image memory 15. In addition, a modem 17 for connecting the home device 2 and the telephone line 5 is provided, and the control unit 11 performs dial-up connection to the server device 4 via the modem 17 (connection means).

  Next, the incoming call processing operation of the in-home device 2 by the control unit 11 will be described with reference to the flowchart of FIG. First, the control unit 11 determines whether there is an incoming call (whether a ring signal has been detected) (S1), and if there is an incoming call, whether the telephone 2a shared with the home device 2 goes off-hook, that is, in-home It is determined whether there is a person accidentally and the person lifts the handset of the shared telephone 2a (S2). Whether or not the common telephone 2a goes off-hook is determined by detecting the DC voltage of the telephone line. If the shared telephone 2a is off-hooked (Yes in S2), a call on the shared telephone 2a starts and the incoming call processing ends. Of course, this step 2 (S2) is omitted when the home device 2 is not provided with a common telephone.

  If the shared telephone 2a is not off-hooked (No in S2), it is next determined whether the incoming call is a short call or a normal call (S3). This determination step (S3) will be described in detail later. The result of the determination in the determination step (S3) is referred to (S4). If the result is that the incoming call is a normal call, the incoming call process ends. If the determination result is a short call, the in-home device 2 dials up to the server device 4 (S5) and acquires a control command from the server device 4 (S6). When the acquisition of the control command is completed, the line is once disconnected (S7). Step 5 (S5) and step 6 (S6) constitute callback means.

  Next, the determination step 3 (S3) will be described with reference to the flowchart of FIG. First, the controller 11 once sets the value of the ring signal counter 11a provided therein to zero (S31), and then detects the input of the first ring signal in step 1 (S1). “1” is added to the value of 11a (S32). Then, the time (elapsed time) t from the end of the ring signal is measured (S33), and it is determined whether or not the next ring signal is detected within the elapsed time t within the first set time A (S34). . Step 32 (S32) constitutes count-up means, and step 33 (S33) constitutes time-counting means.

  If yes in step 34 (S34), the process returns to step 32 (S32) and "1" is added to the value of the counter 11a. If NO in step 34 (S34) (that is, if the next ring signal is not detected within A second), the elapsed time t is equal to or longer than the first set time A and within the second set time B. It is then determined whether or not the next new ring signal has been detected (S35). If the determination result is yes, the value of the counter 11a is returned to "1" (S36), and the process returns to step 33 (measurement of elapsed time) again. If NO in step 35 (S35) (that is, if a new ring signal is not detected within B seconds), it is referred to whether the value of the counter 11a is "1" (S37). If the incoming call is a short call and the answer is no, the determination result is that the incoming call is a normal call. Step 36 (S36) constitutes a count reset means. Further, step 35 (S35) constitutes an identification means for determining that there has been a transition from the ring signal Rn corresponding to the number display to the ring signal Rc for calling.

  Here, the first set time A is set to 3 seconds, which is slightly longer than the interval (2 seconds) Dc between ringing ring signals Rc, and the second set time B corresponds to the number display. A specific process for determining the incoming signal (FIG. 3) will be described in the case where 15 seconds, which is slightly longer than the time (ten seconds) D required to acquire the destination telephone number information following the ring signal Rn, is set. (Of course, both the first set time A and the second set time B may be other values, but the second set time B needs to be set larger than the first set time A. If the second set time B is too long, there is a problem that another nearby incoming call is erroneously recognized as one incoming call.)

  First, a case where the signal in FIG. 3C arrives will be described. Until the three ring signals Rn corresponding to the number display are completed, the interval Dn between the ring signals Rn is 0.5 seconds. Therefore, in any ring signal Rn, the result in step 34 (S34) is YES, and the value of the counter 11a is It is incremented to “3”. Then, the ring signal Rn corresponding to the number display is completed, the destination telephone number information N is acquired, and when the ring signal Rc for calling is started after a lapse of about 10 seconds, the answer is no in step 34 (S34). Since the answer to step 35 (S35) is YES (transition from the ring signal Rn corresponding to the number display to the ring signal Rc for calling is confirmed), the value of the counter 11a is returned to "1" (S36). The number of ring signals Rc is counted up. Then, after the ring signal Rc of the three calls is counted, the value “3” of the counter 11a at that time is referred to in step 37 (S37), and is determined to be a normal call because it is not “1”. .

  Next, the case where the signal shown in FIG. Until acquisition of the destination telephone number information corresponding to the number display is completed, the ringing signal Rc of the call is detected, and the value of the counter 11a is returned from “3” to “1”, the signal of FIG. Although the same ringing signal Rc is used for this incoming call signal once, it is determined NO (no new ring signal detected) in step 34 (S34) and step 35 (S35), and step 37 ( Since the answer is yes in S37), it is determined that the call is short.

  Even when the telephone line 5 is set for number display and the ring signal Rn for number display is included in the incoming call signal, only the ringing ring signal Rc is counted and the short call is properly recognized as described above. Even when the line 5 is not compatible with the number display, the same in-home device 2 can appropriately determine whether the call is short or normal. This will be described with reference to the incoming signal in FIGS. 3 (a) and 3 (b).

  When the signal in FIG. 3A arrives, the interval Dc of the ringing ring signal Rc is 2 seconds, so the determination in step 34 (S34) is yes and the counter 11a is incremented until it reaches “3”. . Since the new ring signal is not detected after the third ringing ring signal Rc is completed, the value of the counter 11a at that time is “3” in step 37 (S37). Determined. When the signal shown in FIG. 3B arrives, since a new ring signal is not detected after the counter 11a is set to “1”, the answer is YES in step 37 (S37) and it is determined that the call is short. .

  As described above, in this embodiment, in the remote monitoring system, even if the incoming signal to the in-home device includes a ring signal compatible with the number display, the elapsed time t from the end of each ring signal is measured, Is a predetermined range (greater than the first set time A and less than the second set time B), the transition from the ring signal Rn corresponding to the number display to the ring signal Rc for calling is identified and shortened. Whether the call is a normal call can be accurately determined. If the call is a short call, the operation of acquiring the control command from the in-home device 2 to the server device 4 is surely performed. Moreover, since the software change for coping with the number display is substantially only the addition of step 35 (S35), the cost of the in-home device 2 is not increased.

  In the above-described embodiment, the case where the ringing signal Rc for ringing is once and the incoming call is cut off after that has been described as a short call. However, this setting may be performed for other times. For example, in the case of setting twice, the determination content of the step 37 (S37) is “Is the counter value within 2? (X ≦ 2)”. Further, in the above-described embodiment, when the transition from the ring signal Rn corresponding to the number display to the ring signal Rc of the normal call is identified, the value of the counter 11a is returned to “1”, and the further ring The counter 11a is incremented by "1" by detecting the signal Rc. However, after two counters are provided and the transition from the ring signal Rn corresponding to the number display to the ringing ring signal Rc is identified, A counter different from that before the transition may be incremented by “1”.

The figure which shows the whole structure of the remote monitoring system which concerns on embodiment of this invention. Communication time chart in the remote monitoring system. It is a figure which shows the aspect of an incoming signal, Comprising: (a) Normal call when number display is not corresponding, (b) Short call when number display is not compatible, (c) Normal call when number display is compatible , (D) represents a short call when the number display is supported. The block diagram which shows the structure of the household device in the remote monitoring system. The flowchart of the incoming call process in the same household device. The flowchart of the determination process of the short call in the in-home apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Remote monitoring system 2 In-home apparatus 3 User terminal 4 Server apparatus 4a Control command storage means 5 Telephone line 6 Camera 7 Internet 11 Control part (control means, callback means, count up means, count reset means)
11a Counter 17 Modem A First set time B Second set time D Time required for obtaining destination telephone number information Dc Interval between ringing ring signals N Telephone number information Rn Ring signal Rc corresponding to number display Ring of ringing Signal t elapsed time

Claims (3)

A home device that transmits a home image taken using a camera via the Internet and a telephone line capable of dial-up connection, and a control that includes camera shooting and other operations connected to the Internet via the Internet and the telephone line. Send a command for
A server device that receives an image from the home device and transmits the image to a user terminal with a browser function via the Internet, and a home device used in a remote monitoring system comprising:
Connection means for connecting to the server device and connecting to a telephone terminal outside the home by dial-up;
A counter that counts the ring signal of the incoming signal received by the connection means;
Callback means for dial-up connection to the server device and acquiring a control command stored in the server device when the incoming call is cut off when the value of the counter is less than a predetermined small value;
A time measuring means for measuring the elapsed time from the end of each ring signal;
Count-up means for adding 1 to the value of the counter when a new ring signal is detected within an elapse time by the time measuring means within a first set time;
Count reset means for returning the value of the counter to 1 when a new ring signal is detected within the second set time and the elapsed time by the time measuring means is equal to or longer than the first set time;
When the incoming signal is a signal including a ring signal compatible with a number display, a transition from a ring signal compatible with a number display to a ring signal for ringing is identified by the count resetting means, and a ring signal after the transition is called A home device in a remote monitoring system characterized by counting up as a ring signal. A home device that transmits a home image taken using a camera via a telephone line that can be connected to the Internet and dial-up, and a control that includes camera shooting and other operations connected to the Internet via the Internet and the telephone line. Send a command for
A server device that receives an image from the home device and transmits the image to a user terminal with a browser function via the Internet, and a home device used in a remote monitoring system comprising:
When an incoming call is detected by detecting a ring signal, and the incoming call is terminated when the number of ring signals is less than a predetermined number, a control command stored in the server device is dialed up to the server device. A control means for acquiring,
The control means includes
Identification that identifies the transition from a ring signal for number display to a ring signal for ringing.
Comprising a separate means, when the incoming signal is a signal including a ring signal number display corresponding, newly counted up only the number of subsequent ring signal when identified that there has been the transition by said identification means,
The identification means is
The elapsed time from the end of each ring signal to the next ring signal is longer than the first set time
If it is shorter than the second set time, the ring signal corresponding to the number display is called.
An in-home device in a remote monitoring system characterized in that it is determined that there has been a transition to a ring signal . The first set time is a time slightly longer than the interval between ringing signals of a call,
The second set time is the destination telephone number following the ring signal corresponding to the number display.
The in-home device in the remote monitoring system according to claim 2, wherein the time is slightly longer than the time required to acquire the issue information .

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