JP2017001763A - Remote monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to decide a voice data transmission method in which smooth conversation can be realized before starting voice communication between a remote monitoring center and a passenger in an elevator car.SOLUTION: In a remote monitoring system according to the present invention, a remote monitoring center 6 monitoring an elevator 3 remotely includes a monitoring terminal 7 which receives abnormality notification and voice communication from a remote monitoring device 4, and a telephone 8 which is connected to the monitoring terminal 7 and reproduces voice data from an interphone 2. When a voice communication request from the interphone 2 is sent to the remote monitoring system 6, the telephone 8 is controlled by the monitoring terminal 7 and, before starting conversation with the interphone 2, communication quality between the remote monitoring device 4 and the monitoring terminal 7 is inspected, to determine whether or not transmission quality of the voice data can be secured. In a case of determining that the transmission quality of the voice data cannot be secured, good voice communication is made possible by switching voice data algorism through a communication passage quality inspection device 9.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a remote monitoring center that remotely monitors an elevator and a remote monitoring system that enables conversation with passengers in an elevator car.

  In a remote monitoring system having a remote monitoring center that remotely monitors the operation state of an elevator at a location remote from the elevator, when an abnormality occurs in the elevator and a passenger is trapped in the elevator car, The car is usually equipped with an external reporting device that enables external reporting, that is, an intercom. By pressing an emergency call button installed in the car, voice connection is made to the remote monitoring center, and conversation between the remote monitoring center and passengers confined in the car is possible via the intercom.

  Conventionally, when remote monitoring is performed via a public line network, telephone calls have been realized between the remote monitoring center and passengers in the elevator car with analog voice equivalent to telephone calls. Voice quality equivalent to call quality can be secured.

  On the other hand, in a voice call for remote monitoring performed via an IP (Internet Protocol) network, a voice waveform is generally converted into data using VoIP (Voice over Internet Protocol) technology, and the data is divided into packets as a packet of the other party. The call device that has transmitted to the call device and has received the divided packets, combines the packets when a certain number of packets are received, reproduces the voice data, and realizes the call.

  In this case, due to the degree of congestion of the IP network used for packet transmission / reception, the arrival of the packet is delayed between the remote monitoring center and the passenger in the elevator car, and it is difficult to restore the voice data from the divided packet. Thus, sound interruption occurs. A technique for solving this problem is disclosed in Patent Document 1.

  In the prior art disclosed in Patent Document 1, voice data is collectively converted into data, and then transmitted to a remote monitoring center. The remote monitoring center reproduces the received voice data and is confined in an elevator car. It is possible to listen to the conversations of passengers.

JP 2009-202998 A

  In the conventional technique, when the number of communication users increases in the entire communication network due to, for example, a disaster, traffic on the communication path is crowded, and it becomes difficult to perform a voice call using normal VoIP, Patent Document 1 discloses. When switching the operation status to be converted into data and transmitted to the remote monitoring center as in the case of the technology, the passengers in the elevator car change the voice conversation format in the middle, so the conversation is recommended There is a possibility that smooth conversation between the passenger in the elevator car and the remote monitoring center cannot be performed.

  The present invention has been made based on the above-described actual situation in the prior art. The purpose of the present invention is to enable voice to enable a smooth conversation before starting a voice call between a remote monitoring center and passengers in an elevator car. An object of the present invention is to provide a remote monitoring system capable of determining a data transmission method.

  In order to achieve the above object, a remote monitoring system according to the present invention is provided in an elevator car and is connected to an interphone that enables a call with the outside, the state of the elevator, and the interphone. A remote monitoring device for converting voice into data, and a remote monitoring center installed remotely from the elevator and remotely monitoring the elevator, wherein the remote monitoring center detects an abnormality from the remote monitoring device. In the remote monitoring system, comprising: a monitoring terminal that receives a report and a voice call; and a telephone that is connected to the monitoring terminal and reproduces voice data from the intercom transmitted via the remote monitoring device. When a request for a voice call from the intercom is sent to the remote monitoring center, the monitoring center Before starting the conversation with the interphone by controlling the telephone by the end, check the communication quality between the remote monitoring device and the monitoring terminal, determine whether the transmission quality of the voice data can be ensured, When it is determined that the transmission quality cannot be ensured, a communication path quality inspection device is provided that enables a good voice call by switching the algorithm of the voice data.

  According to the remote monitoring system of the present invention, it is possible to determine a voice data transmission method that enables a smooth conversation before starting a voice call between a remote monitoring center and passengers in an elevator car. it can. As a result, the present invention enables stable and accurate voice calls even when the number of call users increases due to a disaster and the traffic on the communication path is crowded, and serviceability for passengers in elevator cars Can be improved as compared with the prior art. Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

It is a block diagram which shows the structure of one Embodiment of the remote monitoring system which concerns on this invention. It is a flowchart which shows the procedure of the operation | movement process between each part of this embodiment.

  Embodiments of a remote monitoring system according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an embodiment of a remote monitoring system according to the present invention.

  As shown in FIG. 1, in the remote monitoring system according to the present embodiment, an elevator 3 is installed in a building 1, and an interphone 2 that enables a call with the outside is connected to a car of the elevator 3. . The interphone 2 is installed for the purpose of requesting rescue to the outside when an abnormality occurs in the elevator 3 and a passenger is trapped in the elevator 3 car.

  The elevator 3 is connected to a remote monitoring device 4 that monitors the state of the elevator 3. The remote monitoring device 4 monitors the presence or absence of an abnormality in the elevator 3 and controls a call request by operating the intercom 2.

  The remote monitoring device 4 is connected to the IP communication network 5. The IP communication network 5 is also connected from a monitoring terminal 7 installed in the remote monitoring center 6. Connected to the monitoring terminal 7 is a telephone 8 for making a voice call.

  In the remote monitoring system according to the present embodiment, when a request for a voice call from the interphone 2 is sent to the remote monitoring center 6, the telephone 8 is controlled by the monitoring terminal 7 to the remote monitoring center 6. Before starting the conversation, the communication quality between the remote monitoring device 4 and the monitoring terminal 7 is inspected to determine whether the transmission quality of the voice data can be ensured, and when it is determined that the transmission quality cannot be secured, A communication path quality inspection device 9 is provided that enables a good voice call by switching algorithms.

  The remote monitoring device 4 is connected to the monitoring terminal 7 via the IP communication network 5 by the operation of the interphone 2 and informs that a call request from the interphone 2 is generated. When the monitoring terminal 7 receives a call request from the remote monitoring device 4, the communication route quality inspection device 9 uses the communication route between the remote monitoring device 4 and the monitoring terminal 7 connected via the IP communication network 5. Conduct communication quality inspection.

  While the communication path quality inspection device 9 performs the quality inspection of the communication path, the monitoring terminal 7 confirms that a call request is generated from the monitoring terminal 4 to the operator who is registered in the remote monitoring center 6. Notice. When the operator recognizes that a call request from the remote monitoring device 4 has occurred, the operator operates the monitoring terminal 7 to start the call. When a call operation is performed by the operator, the monitoring terminal 7 receives the quality confirmation result of the communication path performed by the communication path quality inspection apparatus 9 at the timing when the call request from the remote monitoring apparatus 4 is received. To provide an environment in which a call can be made to the operator.

  FIG. 2 is a flowchart showing a procedure of operation processing between the units of the present embodiment. Processing for changing a call algorithm according to the quality status of the IP communication network 5 using the intercom 2 of the car connected to the elevator 3 and the monitoring terminal 7 installed in the remote monitoring center 6 with reference to FIG. Explain the procedure.

  Now, for example, it is assumed that the elevator 3 installed in the building 1 breaks down, a passenger is trapped inside the car, the intercom 2 is operated to notify the outside, and a rescue is requested (step S1).

  The remote monitoring device 4 detects that the interphone 2 has been operated, and the interphone 2 is operated to the monitoring terminal 7 installed in the remote monitoring center 6 that is registered in advance in the remote monitoring device 4, and the elevator It is notified that passengers in the car 3 are requesting a call with the operator of the remote monitoring center 6 (step S2).

  Upon receiving the call request signal from the remote monitoring device 4, the monitoring terminal 7 transmits the information of the remote monitoring device 4 to the communication path quality inspection device 9 provided in the remote monitoring center 6 (step S3). A quality inspection is performed on the communication path from the center 6 to the remote monitoring device 4.

  In this quality inspection, for example, a data transmission rate measured from a time for transmitting and receiving a certain amount of data and a fluctuation measurement for measuring variation in arrival delay of data are performed. It is inspected which stage of the reference value is satisfied with respect to the stage of the reference value (step S4).

  Note that another communication path quality inspection apparatus having a function equivalent to that of the communication path quality inspection apparatus 9 may be incorporated in the remote monitoring apparatus 4 in advance. When configured in this way, it is possible to measure the communication quality from the communication path quality inspection device 9 to the remote monitoring device 4 and to inspect the two directions of communication quality from the remote monitoring device 4 to the communication path quality inspection device 9. It becomes.

  The monitoring terminal 7 receives the call request signal from the remote monitoring device 4 and instructs the communication path quality inspection device 9 to perform the quality inspection of the communication path. At the same time, the monitoring terminal 7 sends the elevator 3 to the operator in the remote monitoring center 6. The passengers in the car operate the intercom 2 to notify that a call with the operator is requested (step S5).

  When receiving the notification from the monitoring terminal 7, the operator operates the monitoring terminal 7 to perform a call start process with the remote monitoring device 4 (step S6).

  When the monitoring terminal 7 receives the call start operation from the operator, the monitoring terminal 7 receives the quality inspection result of the communication path previously inspected by the communication path quality inspection device 9 and uses an algorithm corresponding to a predetermined reference value. Then, the voice connection with the remote monitoring device 4 is performed. For example, when the fluctuation result related to the communication does not satisfy the reference value, the voice communication method using VoIP causes voice interruption due to delay in arrival of voice packets, and the voice is not established as a conversation. Conversation is conducted in a mode in which voice data is delivered using a method that reliably delivers data even if time is required, such as TCP communication, and voice can be played back by playing back voice data. Is switched to the mode to be performed (step S9).

  If there is no problem in the quality of the communication path, a call is established in a mode in which conversation is performed in real time between the passenger of the elevator 2 and the operator of the remote monitoring center 6 by performing a call using normal VoIP ( Step S8).

  In addition, by creating a plurality of combination patterns of communication path inspection items and predetermined reference values in advance and defining a call algorithm for each combination pattern, flexible algorithm selection according to the state of the communication path It becomes possible.

  When the conversation between the operator of the remote monitoring center 6 using the telephone 8 connected to the monitoring terminal 7 and the passenger using the interphone 2 of the elevator car 3 is finished (step S10), the processing in the remote monitoring center 6 is finished. .

  According to the remote monitoring system according to the present embodiment configured as described above, the voice data enabling a smooth conversation before starting the voice call between the remote monitoring center 6 and the passengers of the elevator car 3. The transmission method can be determined. As a result, the present embodiment enables stable and highly accurate voice calls even when the number of call users increases due to a disaster or the like and traffic on the communication path is congested. Serviceability can be improved.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. All technical matters included in the technical idea described in the claims are defined by the present invention. It becomes the object of. The above-described embodiments show preferred examples, but those skilled in the art can realize various alternatives, modifications, variations, and improvements from the contents disclosed in this specification. These are included in the technical scope described in the appended claims.

DESCRIPTION OF SYMBOLS 1 Building 2 Intercom 3 Elevator 4 Remote monitoring device 5 IP communication network 6 Remote monitoring center 7 Monitoring terminal 8 Telephone 9 Communication path quality inspection device

Claims (3)

An interphone that is provided in an elevator car and that enables communication with the outside, a remote monitoring device that monitors the state of the elevator and that is connected to the interphone and converts sound into data, and remote from the elevator A remote monitoring center installed at a location and remotely monitoring the elevator;
The remote monitoring center reproduces audio data from the intercom connected to the monitoring terminal that receives an abnormality report and a voice call from the remote monitoring device and transmitted via the remote monitoring device. In a remote monitoring system having a telephone
When a voice call request from the interphone is sent to the remote monitoring center, the remote monitoring center controls the telephone by the monitoring terminal before starting a conversation with the interphone. The communication quality between the monitoring device and the monitoring terminal is inspected to determine whether the transmission quality of the voice data can be secured, and when it is determined that the transmission quality cannot be secured, the voice data algorithm is switched to perform a good voice call A remote monitoring system comprising a communication path quality inspection device that makes possible the above. The remote monitoring system according to claim 1,
The remote monitoring device inspects the communication quality between the remote monitoring device and the monitoring terminal, determines whether the transmission quality of the audio data can be ensured, and determines that the transmission quality cannot be ensured, A remote monitoring system comprising another communication path quality inspection device that enables a good voice call by switching an algorithm. The remote monitoring system according to claim 1 or 2,
Remote monitoring characterized by creating a plurality of combination patterns of communication path inspection items by the communication path quality inspection apparatus and predetermined reference values and defining a call algorithm for each combination pattern system.