JP2006054755A - Communication state analysis system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the efficiency when analyzing a communication state related to a specific air conditioner by receiving communication data from a plurality of air conditioners via a communication network. <P>SOLUTION: The communication state analysis system is provided with a communication data collecting device having a receiving means for receiving the communication data from the communication network, to which a plurality of the air conditioners having a communication circuit are connected; a storage means which stores the communication data received by the receiving means together with the reception time in a form of digital data; and a transmitting means which selects the communication data of the specific air conditioner from among the communication data stored by the storage means, and transmits the communication data other than the selected communication data to a reproducing means for reproducing the communication states at time intervals corresponding to the reception time. The communication states related to the specific air conditioner can be efficiently analyzed from the communication data, which are received from the communication network, by such a communication state analysis system. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a communication state analysis system that receives communication data from a plurality of air conditioners that can communicate via a communication network and analyzes a communication state.

  An air conditioning system such as an office or a building includes, for example, a plurality of air conditioners connected to a central control device via a communication network, and a remote controller connected to each air conditioner via a communication network, and performs centralized control. The communication data of the operation command is transmitted from the device to each air conditioner, and each air conditioner receives this communication data and performs a predetermined operation, while the communication data returned from the air conditioner is received by the central control device. It has come to be. That is, the central control apparatus transmits communication data to control the operation of each air conditioner, and manages the operation, room temperature, and the like of each air conditioner based on the returned communication data.

  By the way, during the operation of the air conditioner, for example, the air conditioner may not operate as commanded due to communication data transmitted from the central control device. In this case, the central control apparatus monitors whether transmission data is returned within a predetermined time via a remote controller or an air conditioner, and determines that an abnormality has occurred if no transmission is returned within a predetermined time.

  As described above, when an abnormality occurs in the air conditioner due to the communication data flowing through the communication network, the communication data is first received and the communication transmitted and received between specific devices is performed in order to return to the normal state. It is necessary to analyze and verify the contents of the data.

  As a method of analyzing the communication state, communication data received from a specific communication network is recorded on a recording medium, and then converted into characters and output to a monitor or recording paper, and the communication state is visually analyzed. . If the actual air conditioning system cannot be used for analyzing the communication status, the communication data received from the actual communication network is reproduced in a predetermined procedure using a communication simulator or other reproduction means, and the communication status is verified. To be done.

  For example, a protocol analyzer is disclosed that reproduces a communication state by receiving communication data of a plurality of terminals from a communication network, recording the communication data in a memory, and sending the recorded data to a specific terminal ( Patent Document 1).

JP-A-5-191476

  However, in the communication network to which a plurality of air conditioners are connected as described above, when communication data is received and data abnormality is analyzed, the communication data received from the communication network is all connected to the communication network. It becomes communication data transmitted and received by the air conditioner.

  Therefore, for example, if a protocol analyzer such as Patent Document 1 is used to monitor communication data received from the communication network and visually analyze specific communication data, the processing time becomes enormous. In addition, when the communication data is reproduced by the reproducing unit, the communication data of all the air conditioners is reproduced, which causes a problem in evaluating the communication data of a specific air conditioner.

  In the air conditioning system, there are two communication networks that connect the central control device and the remote controller with an air conditioner, but the communication data transmitted through each communication network is mutually connected to the operation of the air conditioner. Influence. For this reason, conventionally, communication data received from each communication network is output to a monitor and evaluated while visually comparing. However, according to this method, if the recording time of each monitor, that is, the time axis is different, the reliability of the evaluation result may be lowered. In addition, there is a problem that a plurality of monitor devices are required and the cost is increased.

  This invention makes it a subject to improve the efficiency at the time of receiving communication data from a some air conditioner via a communication network, and analyzing the communication state concerning a specific air conditioner.

  In order to solve the above problems, the present invention is a communication state analysis system that receives communication data from a communication network to which a plurality of air conditioners having communication circuits are connected and analyzes the communication state, and receives the communication data. Receiving means, storage means for storing the communication data received by the receiving means as digital data together with the reception time, and selecting communication data of a specific air conditioner from the communication data stored by the storage means, A communication data collection device having a transmission unit that transmits communication data other than the selected communication data to a reproduction unit that reproduces a communication state at a time interval that matches the reception time.

  According to this, communication data of a specific (for example, considered abnormal) air conditioner can be automatically selected from communication data received from the communication network, and communication data other than the specific air conditioner can be output. Therefore, the analysis efficiency of the communication state can be improved regardless of the amount of communication data.

  In particular, it is possible to faithfully verify the communication state of a specific air conditioner by recording the communication data according to the reception time and outputting it at the time interval of the reception time, that is, reproducing it by the reproduction means. Also, communication data received from the communication network can be selected and monitored or reproduced according to the operating state of a specific air conditioner, so that the analysis efficiency of the communication state can be further improved. .

  Receiving means for receiving communication data from a communication network to which a plurality of air conditioners having a communication circuit are connected; and storage means for storing the communication data received by the receiving means as digital data together with a reception time by a timer circuit; A reproduction unit that selects communication data of a specific air conditioner from the communication data stored by the storage unit and reproduces the communication state at a time interval in accordance with the reception time of communication data other than the selected communication data. A plurality of communication data collection devices each having a transmission means for transmitting, and the timer circuit may be formed so that the time axis of the reception time can be shared with the other communication data collection devices via a changeover switch. Good.

  According to this, when connecting communication data collection devices to different communication networks and receiving communication data, the communication data received from each communication network can be recorded and reproduced on the same time axis. Thus, erroneous evaluation due to a shift in the recording time of communication data between each other can be prevented, and the communication state of a specific air conditioner can be verified with high accuracy. In addition, according to the present invention, communication data of different communication networks can be shared, and for example, communication data can be displayed in time series on a single monitor device, so that the number of monitor devices can be reduced, which is economical.

  In the above communication state analysis system, it is preferable that the reception circuit of the reception unit and the transmission circuit of the transmission unit can be exchanged with other reception circuits and transmission circuits having different specifications. According to this, for example, by enabling a plurality of interfaces to be supported by the same system, the receiving circuit and the transmitting circuit can be shared with those of other communication state analysis systems, so that the cost of the communication data collecting device can be reduced.

  ADVANTAGE OF THE INVENTION According to this invention, the efficiency at the time of receiving communication data from a some air conditioner via a communication network and analyzing the communication state concerning a specific air conditioner can be improved.

(First embodiment)
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a communication state analysis system to which the present invention is applied.

  As shown in FIG. 1, the communication state analysis system according to the present embodiment monitors a communication network 3 that connects the control devices 1a to 1c with transmission lines, and monitors communication data received from the communication network 3 and outputs it to a reproduction unit. The communication data collecting device 5 and reproduction means for reproducing the output signal output from the communication data collecting device 5 are provided.

  For example, the control device 1a is a centralized control device, and the control devices 1b and 1c are air conditioners. The control device 1 a and the control devices 1 b and 1 c are provided with a communication circuit, and transmit and receive communication data via the communication network 3. The communication data collection device 5 includes a reception circuit 7, an arithmetic circuit 9, a communication data recording memory 11, a timer circuit 13, a changeover switch 15, a user interface 17, and a transmission circuit 19.

  Next, the processing of this system will be described focusing on the communication data collection device 5. Communication data of the control devices 1 a to 1 c that transmit the communication network 3 is taken into the communication data collection device 5 via the reception circuit 7. The communication data received by the receiving circuit 7 is recorded in the communication data recording memory 11 together with the time data generated by the timer circuit 13 after digital conversion, that is, the reception time.

  Here, for example, when evaluating communication data related to a specific (eg, considered abnormal) control device 1c, information on the control device 1c is selected by an input device such as a keyboard (not shown), and through the user interface 17, Communication data relating to the control devices 1a and 1b other than the control device 1c is extracted. Thereby, the arithmetic circuit 9 selects the control devices 1a and 1b from the communication data digitally stored in the communication data recording memory 11 based on the data specifying the control device included in the communication format. Then, the selected communication data of the control devices 1a and 1b is transferred to the arithmetic circuit 9, and transmitted from the transmission circuit 19 to the corresponding communication path of the reproduction means (not shown) at a time interval that matches the reception time. . The change-over switch 15 switches the timer input of the timer circuit 13 and another communication state analysis system and inputs it to the arithmetic circuit 9. In addition, time data is output from the timer circuit 13 to another communication state analysis system.

  FIG. 2 is a diagram illustrating a state in which communication data of a specific control device is selected from communication data recorded in the communication data recording memory 11. As shown in the figure, from the communication data recorded together with the reception time in units of milliseconds (ms), for example, the communication data of the device number 20 equivalent to the control device 1c is selected, and the other communication data is received at the reception time. Are transmitted to the reproduction means at the same time interval.

  For example, the reproduction unit is configured such that a control device equivalent to the control device 1c is connected to the communication network, and the communication data related to the control device 1c is verified by transmitting communication data other than the control device 1c. It is configured.

  In the present embodiment, the receiving circuit 7 and the transmitting circuit 19 are preferably exchangeable with other receiving circuits and transmitting circuits having different specifications. For example, if a plurality of interfaces can be handled by the same system, the receiving circuit and the transmitting circuit can be shared with those of other communication state analysis systems, so that the cost of the communication data collecting device can be reduced.

  According to this embodiment, communication data of a specific control device can be selected from communication data received from the communication network 3, and communication data other than the selected control device can be automatically selected and output. In the air conditioning system having an enormous amount of communication data, the analysis efficiency of the communication state can be improved. In particular, it is possible to faithfully verify the communication state applied to a specific control device by recording the communication data according to the reception time and reproducing it at the time interval of the reception time. Also, communication data received from the communication network 3 can be selected and monitored or reproduced according to the operating state of a specific control device, so that the analysis efficiency of the communication state can be further improved. .

  The communication state analysis system according to the present embodiment is suitable for an air conditioning system that controls a plurality of (for example, 100 or more) air conditioners with a single centralized control device, but is not limited thereto.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a configuration diagram of a communication state analysis system to which the present invention is applied. FIG. 4 is an explanatory diagram of an air conditioning system to be analyzed by the communication state analysis system of the present embodiment, where (a) is a schematic diagram showing the configuration of the air conditioning system, and (b) is communication data between the configurations. The flow is shown, and the vertical axis represents time. 3, the same components as those in FIG. 1 are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 4 (a), the air conditioning system has two communications: a communication network 3 that connects the central control device 1a and the air conditioner 1b, and a communication network 31 that connects the air conditioner 1b and the remote controller 1d. Has a net. The air conditioner 1b is an arbitrary air conditioner among a plurality of air conditioners connected to the central control device 1a. A remote controller 1d is connected to each air conditioner.

  Communication data transmitted from the central control device 1a to the air conditioner 1b is transmitted to the remote controller 1d via the air conditioner 1b, and a predetermined operation mode is displayed on the remote controller 1d. Next, the remote controller 1d returns communication data corresponding to the displayed operation mode, and after the air conditioner 1b receives this and performs a predetermined operation, the communication data returned from the air conditioner 1b is concentrated. Received by the control device 1a. Thus, the communication data transmitted through the communication networks 3 and 31 affect each other on the operation of the air conditioner 1b.

  Here, for example, when an abnormality occurs in the operation of the air conditioner 1b due to the communication data transmitted from the central control device 1a, the time until the air conditioner 1b returns the communication data becomes longer, and the concentration is increased. The control device 1a considers that an abnormality has occurred because there is no return within the monitoring time. As described above, when an abnormality occurs in the air conditioner 1b, in order to return to the normal state, the communication data of the communication networks 3 and 31 is received by the communication data analysis system, and the contents of the communication data are analyzed and verified. There is a need.

  As shown in FIG. 3, the communication data analysis system of this embodiment is configured by connecting a communication data collection device 5 to a communication network 3 and connecting a communication data collection device 33 to a communication network 31. The communication data collection device 33 has the same configuration as the communication data collection device 5 and includes a reception circuit 35, an arithmetic circuit 37, a communication data recording memory 39, a timer circuit 41, a changeover switch 43, and a user interface 45. The timer circuit 13 of the communication data collection device 5 is connected to the changeover switch 43 of the communication data collection device 33 and the transmission line 49.

  The communication data collection device 5 receives the communication data from the communication network 3 and acquires the time when the received communication data is recorded in the communication data recording memory 11 from the timer circuit 13. On the other hand, the communication data collecting device 33 receives communication data from the communication network 31 and sets the time when the received communication data is recorded in the communication data recording memory 39 by switching the changeover switch 43 via the transmission line 49. Obtained from the timer circuit 13 of the collection device 5. In addition, it is the same as that of 1st Embodiment about the point which selects the specific air conditioner (for example, seems abnormal) and reproduces about the communication data of other air conditioners.

  According to the present embodiment, communication data can be received from different communication networks, and the received communication data can be recorded and reproduced on the same time axis. For this reason, in addition to the effect of 1st Embodiment, the misevaluation accompanying the shift | offset | difference of the recording time of each communication data can be prevented, and the communication state concerning a specific air conditioner can be verified with high accuracy. Further, according to the present embodiment, for example, communication data of different communication networks can be combined and the communication data can be displayed in time series on one monitor device, so that the number of monitor devices can be reduced, which is economical.

1 is an overall configuration diagram of a communication state analysis system according to a first embodiment to which the present invention is applied. It is a figure which shows the state which selected the communication data of the specific control apparatus from the recorded communication data. It is a block diagram of the communication state analysis system of 2nd Embodiment formed by applying this invention. It is explanatory drawing of the air-conditioning system used as the analysis object of a communication state analysis system, (a) is a schematic diagram which shows the structure of an air-conditioning system, (b) shows a mode that communication data flows between structures, and a vertical axis | shaft is Represents time.

Explanation of symbols

1a Control device (central control device)
1b, 1c Control device (air conditioner)
1d remote control 3,31 communication network 5,33 communication data collection device 7,35 reception circuit 9,37 arithmetic circuit 11,39 communication data recording memory 13,41 timer circuit 15,43 selector switch 17,45 user interface 19,47 transmission circuit

Claims (3)

A communication state analysis system that receives communication data from a communication network connected to a plurality of air conditioners having a communication circuit and analyzes a communication state,
A receiving means for receiving the communication data; a storage means for storing the communication data received by the receiving means as digital data together with a reception time; and the specific air conditioning from the communication data stored by the storage means. A communication data collection device comprising: a transmission unit that selects communication data of a machine and transmits the communication data other than the selected communication data to a reproduction unit that reproduces a communication state at a time interval that matches the reception time. Communication state analysis system. A communication state analysis system that receives communication data from a communication network connected to a plurality of air conditioners having a communication circuit and analyzes a communication state,
A receiving means for receiving the communication data; a storage means for storing the communication data received by the receiving means as digital data together with a reception time by a timer circuit; and a specific one of the communication data stored by the storage means Communication data collection comprising: a transmission unit that selects communication data of the air conditioner and transmits the communication data other than the selected communication data to a reproduction unit that reproduces a communication state at a time interval that matches the reception time. A communication state analysis system comprising a plurality of devices, wherein each of the timer circuits is formed so that the time axis of the reception time can be shared with other communication data collection devices via a changeover switch. The communication state analysis system according to claim 1 or 2, wherein the reception circuit of the reception unit and the transmission circuit of the transmission unit are interchangeable with other reception circuits and transmission circuits having different specifications.

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