JP3298457B2 - Scratch signal detection handling system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for communication between a control device and a controlled device, between two terminals, or the like, in which a communication method in which a communication signal may be different from each other is applied. Can also perform appropriate processing operations,
The present invention relates to a system for coping with a crossing signal that can continue communication.

[0002]

2. Description of the Related Art Conventionally, a control device or control terminal having control logic and a controlled device controlled by the control device or control terminal or between two devices to which a communication mode having a controlled terminal is applied, or Between terminal and device,
In a communication network between two terminals, or in a communication network having at least one of these combinations, there is a possibility that a communication signal may be different between a control device or a control terminal and a controlled device or a controlled terminal. Method may have been applied. When signals are skewed, the communication order is disturbed, and various abnormalities occur, such as an accurate signal becoming an abnormal signal. FIG. 8 is a diagram illustrating an example of the crossing signal. Although there is no clear definition of the expression of the "crossing signal", here, for example, a signal in the case shown in FIG. 8 is defined as a "crossing signal". User 8
From 00, a service activation request (80
1), and a control signal request (802) is sent from the controlled device 102 to the control device 101 based on the 1). Accordingly, control signal # 1 (803) is transmitted from control device 101 to controlled device 102. However, when the line between the user 800 and the controlled device 102 is disconnected (804), the controlled device 102
Sends an event notification signal (805) to the control device 101 for disconnection. In this case, the event notification signal (80) after the arrival of the control signal # 1 (803)
5) or an event notification signal (805) before arrival in many cases. The event notification signal (805) in such a case is called a crossing signal.

[0003] In the conventional communication to which a communication method in which a communication signal is likely to be different from each other is applied, a measure is taken by terminating the communication when an abnormality is detected. As there were no other measures, we had to take measures to terminate communications. However, the measure of simply terminating the communication causes a problem such as a decrease in serviceability in an intelligent network including a service control device and an exchange controlled by the service control device. On the other hand, if the control device or the control terminal cannot recognize an event that can occur due to an operation caused by a signal difference, in the intelligent network as in the above example, a problem may occur in the service itself. . By the way, the control device and the control terminal both have control logic, but when the control signal is transmitted through a person, that is, the control signal is transmitted by the operation of the user using the terminal in the control terminal. It is the control device that transmits the control signal by a specific logic in the device. Therefore, when the control device and the controlled device, and the control terminal and the controlled terminal are present in the communication network, when controlling the controlled device from the control device, when controlling the controlled terminal from the control device, There are four cases in which a controlled terminal is controlled from a control terminal and a case where a controlled device is controlled from a control terminal.

[0004]

As described above, in the prior art, when a communication method that may cause a signal skew is applied, the control device or the controlled device communicates when an abnormality is detected. Had been terminated. Further, if no abnormality is detected, an abnormality occurs in a network using advanced electronic devices such as an intelligent network, so that a problem has occurred in the service itself. Therefore, an object of the present invention is to solve such a conventional problem, and to be able to reliably detect a signal difference,
In addition, it is also possible to recognize at which point a signal misalignment has occurred, to avoid occurrence of an abnormality that may occur due to the signal misalignment, and to provide a misalignment signal detection coping system that enables continuation of processing after the signal misalignment. is there.

[0005]

In order to achieve the above-mentioned object, in the system for coping with detection of a cross signal according to the present invention, the control terminal detects the occurrence of the cross signal, and when the signal is generated, the control signal transmitted to what extent is executed. By recognizing whether the operation has been performed, the control logic in the control terminal enables subsequent processing in consideration of the operation of the controlled terminal or the controlled device by the transmitted control signal that can be executed after the occurrence of the event. As a result, it is possible to detect a difference between signals in communication between two devices, between terminals, or between a device and a terminal, and to realize a subsequent measure based on the detection result.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The operation principle and embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a principle diagram showing the operation of the system for coping with detection of a cross signal according to the first embodiment of the present invention. In FIG. 1, 101 is a control device, 1
Reference numeral 02 denotes a controlled device, and the transmission and reception processing units 104 and 110 are in charge of communication between them. Control device 101
When a control signal is transmitted from the control logic 103 to the controlled device 102, the transmission / reception processing unit 104 first obtains identification information for the transmission control signal generated by the identification information generation unit 105, and transmits the obtained identification information. It is stored in the control signal information storage means 106 together with the content of the control signal to be transmitted. The control signal information storage means 106 stores the control signal identification information and the control signal contents in the order in which the information storage requests from the transmission / reception processing means 104 are received.
The transmission / reception processing unit 104 issues a request for storing information,
It notifies the identification information setting means 107 of the control signal identification information and the content of the control signal. The identification information setting means 107 sets the control signal identification information in the transmission control signal, and passes a control signal including the control signal identification information to the transmission / reception processing means 104.
The transmission / reception processing unit 104 transmits a control signal including the control signal identification information to the controlled device 102.

In the controlled device 102, the transmission / reception processing means 1
At 10, a control signal from the control device 101 is received,
By passing the control signal to the control signal processing 111,
The control signal is processed in the control signal processing 111. When the processing of the control signal is completed, the control signal processing 111 requests the execution completion control signal identification information storage unit 112 to store the control signal identification information included in the received control signal. The execution completion control signal identification information storage unit 112 stores the control signal identification information passed from the control signal processing 111. Processing completion means that the control signal has been normally processed and the processing has been completely completed. When the control signal cannot be processed normally, for example, by transmitting a notification signal indicating that the control signal could not be processed normally to the control device 101, the control device 101 side It is possible to recognize if has failed. When the control signal has failed, the control signal identification information is not stored in the execution completion control signal identification information storage unit 112, and the storage of the failed control signal is excluded from the control signal information storage unit 106 on the control device 101 side. In addition, a search for whether there is a control signal transmitted after the failed control signal can be easily realized. The control logic 103 can also handle a control signal. When the processing completion is realized in the above-described sense, the control signal identification information to be stored in the execution completion control signal identification information storage unit 112 is always one of the latest information, and there is no problem.

When an event occurs in the controlled device 102, the event is first detected in an event detection process 113, and is notified to the transmission / reception processing means 110 as an event notification signal. Note that various events can occur in a communication form. For example, in an intelligent network, the control device 101 is considered as a service control device and the controlled device 102 is considered as an exchange, and an event generated in the exchange is transmitted from another exchange. Signal, a signal from a connected user, or expiration of various timers operating in the exchange.
The transmission / reception processing unit 110 passes the received event notification signal to the return identification information setting unit 114. The return identification information setting unit 114 acquires the latest execution completion control signal identification information stored in the execution completion control signal identification information storage unit 112, and sets the execution completion control signal identification information in the event notification signal. To the transmission / reception processing means 110.
The transmission / reception processing unit 110 transmits the received event notification signal to the control device 101. Control device 101
When the event notification signal is received by the transmission / reception processing unit 104, the execution completion control signal identification information in the received event notification signal is passed to the signal deviation detection unit 108, thereby confirming whether the signal deviation has occurred. .

The signal discrepancy detecting means 108 compares the received execution completion control signal identification information with the latest control signal identification information stored in the control signal information storage means 106, thereby causing a signal discrepancy. It determines whether or not this is the case, and notifies the transmission / reception processing unit 104 of the result. The transmission / reception processing unit 104 passes the received event notification signal to the control logic 103 if no signal crossing has occurred according to the notified signal crossing determination result. On the other hand, if a signal skew has occurred, the execution completion control signal identification information is passed to the execution completion control signal identification means 109. The execution completion control signal identification means 109 searches the storage information in the control signal information storage means 106 based on the execution completion control signal identification information,
That is, the control signal content for the control signal for which the execution completion on the controlled device 102 has been confirmed is acquired, and the transmission / reception processing unit 104 is notified. The storage information before the control signal whose execution has been confirmed is discarded at this time, and the released memory area is reused when storing in the future, so that the memory area required for storage is used efficiently. Can also. The transmission / reception processing unit 104 passes the received execution completion control signal content and the received event notification signal to the control logic 103. When the control logic 103 receives only the event notification signal, the control logic 103 recognizes that the signals do not cross each other, and executes the subsequent control logic. On the other hand, when the event notification signal and the content of the execution completion control signal are received, it is recognized that a signal skew has occurred, and it is recognized that the control signal corresponding to the content of the execution completion control signal has been completed. It is determined that an event has occurred after the completion of the process, and what kind of operation the control signal that has not completed the process at the time of the event occurs due to the occurrence of the event. It becomes executable.

FIG. 2 is a principle diagram of the operation of the system for coping with detection of a cross signal according to the second embodiment of the present invention. FIG.
1 is different from the system of FIG. 1 in that the processing of the identification information setting means 107 is not provided and the execution completion control signal identification information generating means 115 is newly provided in the controlled device 102. Regarding the processing, since the processing of the identification information setting means 107 is not performed in the control device 101, the signal is transmitted without setting the control signal identification information in the control signal. Sometimes, instead of acquiring the control signal identification information from the control signal, the execution completion control signal identification information generation means 115 having the same identification information generation logic as the identification information generation means 105 in the control device 101 autonomously executes the execution completion control signal. Execution completion control signal identification information storage means 1 generated as identification information
12 is different from that of FIG. In the present invention,
When the control device 101 transmits the first control signal and the controlled device 102 receives the first control signal, the respective identification information generation logics generate the same information, so that the control information is explicitly included in the control signal. Even if the identification information is not set, it can be realized as in the case of FIG.

FIG. 3 is a flowchart of a control signal transmission process in the control device of the present invention. Here, as the method of generating identification information, the simplest case in which 1 is passed at the time of the first generation request and integer values are passed in ascending order from 1 for the next generation request will be described. A control signal transmission request 301 is sent from the control logic 103 in the control device 101 to the transmission / reception processing unit 104 to request transmission of a control signal. The transmission / reception processing unit 104 sends an identification information generation request 302 to the identification information generation unit 105, and in response to the generation request for the control signal to be transmitted, the identification information of the initial value 1 is used as the identification information 304
To the transmission / reception processing means 104. For the second and subsequent generation requests, each time a generation request is issued, identification information added by one (identification information to be returned = identification information generated last time + 1) is returned. The transmission / reception processing unit 104 passes the received identification information and the content of the control signal to be transmitted to the control signal information storage unit 106 by an identification information storage request 305. The control signal information storage means 106 stores the received identification information and control signal contents in a storage data area 701 having a storage data structure as shown in FIG.
06). The storage data area 701 includes an identification information storage area 702 and a control signal content storage area 703. When the identification information 3 and the control signal content 3 are stored in the storage area 706 by the previous generation request, they are stored in the next storage area 707 by the current generation request. Thereafter, the transmission / reception processing unit 104 sends an identification information setting request 307 to the identification information setting unit 107 to request the identification information setting in the control signal. The identification information setting means 107 sets the received identification information at a predetermined position in the received control signal in a predetermined format (processing 308), and as a control signal 309, the transmission / reception processing means 10
Return to 4. The transmission / reception processing unit 104 transmits the control signal to the controlled device 102 of the communication destination (310).

FIG. 4 is a flowchart of a control signal receiving process in the controlled device according to the present invention. In the controlled device 102, the transmission / reception processing means 110 receives the control signal 401 from the control device 101 and passes the control signal to the control signal processing 111 (402). Thus, the control signal is processed in the control signal processing 111 (processing 403).
When the processing of the control signal is completed, the control signal processing 111 extracts the control signal identification information included in the received control signal (processing 404), and sends an identification information storage request 405 to the execution completion control signal identification information storage unit 112. And requests that it be stored as execution completion control signal identification information. The execution completion control signal identification information storage means 112 stores the control signal identification information passed from the control signal processing 111 (processing 406).

FIG. 5 is a flowchart of the event notification signal transmission process in the controlled device according to the present invention. When an event occurs in the controlled device 102, the event 501 is first detected in the event detection processing 113 (processing 502), and is notified to the transmission / reception processing unit 110 as an event notification signal 503. In the transmission / reception processing means 110,
Return identification information setting means 1 for receiving the received event notification signal
14 as a return identification information setting request 504. The return identification information setting unit 114 sends the latest execution completion control signal identification information acquisition request 505, and acquires the latest execution completion control signal identification information stored in the execution completion control signal identification information storage unit 112 (Step 506). Then, the execution completion control signal identification information is set at a predetermined position in the event notification signal received in a predetermined format (step 50).
7) and pass it to the transmission / reception processing means 110 (process 508). The transmission / reception processing unit 110 transmits the received event notification signal to the control device 101 (processing 509).

FIG. 6 is a flowchart of an event notification signal receiving process in the control device of the present invention. Control device 10
1, the event notification signal 601 is transmitted to the transmission / reception processing unit 10.
4, the execution completion control signal identification information included in the received event notification signal is extracted (process 602).
By passing the extracted execution completion control signal identification information to the signal deviation detecting means 108 (process 603), it is confirmed whether or not the signal deviation has occurred. In the signal discrepancy detecting means 108, the latest transmission control signal identification information acquisition request 6
In step 04, the latest transmission control signal identification information is requested from the control signal information storage means 106. Control signal information storage means 106
For example, when information as shown in FIG. 7 is stored in the storage data area, the identification information storage area 702 of the storage area 706 which is the identification information of the latest control signal information.
The value of the identification information 3 set in the process is acquired (step 60).
5) This is passed to the signal discrepancy detecting means 108 as the latest transmission control signal identification information 606. The signal discrepancy detecting means 108 detects the signal discrepancy by comparing the execution completion control signal identification information 603 from the transmission / reception processing means 104 with the latest transmission control signal identification information 606 from the control signal information storage means 106 ( Process 607). If no signal skew is detected, that is, if both values match, the received event notification signal is passed to the control logic 103 (operation 608). The control logic 103 executes the subsequent processing according to the logic in the case where the signal difference has not occurred (process 613).

On the other hand, if a signal difference is detected, that is, if the two values do not match, the execution completion control signal identification information is transmitted to the execution completion control signal identification means 109 by the execution completion control signal identification request 609. Pass to. The execution completion control signal specifying unit 109 searches the storage information in the control signal information storage unit 106 based on the execution completion control signal identification information, and determines the control signal immediately before the occurrence of the signal skew, that is, the execution completion on the controlled device 102 side. The control signal content corresponding to the confirmed control signal is acquired (process 610), and this is notified to the signal discrepancy detecting means 108 (process 611). For example, when the information as shown in FIG. 7 is stored in the storage data area, the identification information matching the execution completion control signal identification information is searched from the identification information storage area 702. When the coincident identification information coincides with the storage area 705, for example, the information of the control signal content 2 set there is passed to the signal discrepancy detecting means 108 (process 611).
The signal discrepancy detecting means 108 passes the received control signal content and the received event notification signal to the control logic 103 (process 612). The control logic 103 recognizes that a signal difference has occurred from the content of the received control signal, and determines a subsequent process from the completed control signal and the event notification signal (process 613). When implemented according to the above-described processing, event notification and control instructions can be transmitted at an arbitrary timing, and even if those signals are different, detecting that the signals are different from each other controls appropriate measures thereafter. Since it can be held as logic, communication can be continued.

[0016]

As described above, according to the present invention,
An event notification from the controlled device and the like and a control signal from the control device and the like can be transmitted at an arbitrary timing, and even if those signals are misaligned, by detecting that the signals are misaligned, an appropriate Since the countermeasure can be held as control logic in the control device, communication can be continued as it is.

[Brief description of the drawings]

FIG. 1 is a principle diagram showing an operation of a system for coping with detection of a cross signal according to a first embodiment of the present invention.

FIG. 2 is a principle diagram showing an operation of a system for coping with detection of a cross signal according to a second embodiment of the present invention.

FIG. 3 is a flowchart of a control signal transmission process in the control device of the present invention.

FIG. 4 is a flowchart of a control signal receiving process in the controlled device according to the present invention.

FIG. 5 is a flowchart of an event notification signal transmission process in the controlled device of the present invention.

FIG. 6 is a flowchart of an event notification signal receiving process in the control device of the present invention.

FIG. 7 is a diagram showing a storage data structure of control signal information storage means in the control device of the present invention.

FIG. 8 is a diagram illustrating an example of a crossing signal that is an object of the present invention.

[Explanation of symbols]

Reference Signs List 101: control device, 102: controlled device, 103: control logic, 104: transmission / reception processing unit, 105: identification information generation unit, 106: control signal information storage unit, 107: identification information setting unit, 108: signal discrepancy detection unit , 109 ...
Implementation completion control signal specifying means, 110 ... transmission / reception processing means,
111 ... control signal processing, 112 ... execution completion control signal identification information storage means, 113 ... event detection processing, 114 ... return identification information setting means, 115 ... execution completion control signal identification information generation means, 701 ... control signal information storage means, 702 ...
Identification information storage area, 703: control signal content storage area, 704 to 707: identification information 1, 2, 3,

Claims (4)

(57) [Claims] In a system having a control device having control logic and a controlled device or a controlled terminal controlled by the control device, the control device is uniquely provided by communication with the controlled device. Identification information generating means for generating identifiable control signal identification information; control signal information storage means for storing the control signal identification information and control signal contents in the order of transmission when transmitting the control signal; and executing signal transmission / reception processing Transmitting and receiving processing means, when receiving the event notification signal, comparing the control signal identification information set in the event notification signal with the control signal identification information stored in the control signal information storage means. A signal discrepancy detecting means for detecting that a signal discrepancy has occurred due to being different from the latest stored control signal identification information; And an execution completion control signal specifying means for specifying which control signal has been executed by searching for matching control signal identification information from among the control device. The controlled device or the controlled terminal receives the control signal. After the completion of the execution of the control processing after the completion, the execution completion control signal identification information storage means for storing the control signal identification information included in the control signal, and the event is transmitted upon an event occurring in the controlled device or the controlled terminal. When sending an event notification signal,
A return identification information setting means for setting the latest control signal identification information obtained from the execution completion control signal identification information storage means; and a transmission / reception processing means for executing a signal transmission / reception process. When the occurrence is detected, by recognizing how far the transmitted control signal has been executed, the control logic in the control device can control the controlled device side or the controlled device by the transmitted control signal that can be executed after the occurrence of the event. A system for coping with crossing signal detection, characterized in that a subsequent process is performed in consideration of the operation on the terminal side. 2. The system according to claim 1, wherein the controlled device or the controlled terminal further uses the same logic as the identification information generating means of the control device after executing the received control signal. The generated execution completion control signal identification information generation means is provided. The control device starts generating identification information at the time of the first signal transmission, and the controlled device or the controlled terminal executes the first control signal processing. By starting the generation of identification information later,
By matching the identification information between the two devices,
When the controller detects the occurrence of the signal skew, the control logic in the controller recognizes how far the transmitted control signal has been executed, so that the control logic in the controller can execute the transmitted control signal after the event has occurred. And performing a subsequent process in consideration of the operation of the controlled device side or the controlled terminal side. 3. A system having a control terminal having control logic and a controlled terminal or controlled device controlled by the control terminal, wherein the control terminal includes all of the control devices in the control device according to claim 1. Means, the controlled terminal or the controlled device is provided with all the means in the controlled device according to claim 1, and the control terminal transmits when the occurrence of a signal skew is detected. By recognizing how far the control signal has been executed, the subsequent processing in consideration of the operation of the controlled terminal side or the controlled device side by the transmitted control signal that can be executed after the occurrence of the event in the control logic in the control terminal A system for coping with crossing signal detection, characterized in that the system is implemented. 4. The system according to claim 3, wherein the control terminal includes all means in the control device according to claim 2, and the controlled terminal or the controlled device includes: Providing all means in the controlled device according to claim 2, wherein the control terminal starts generating identification information at a first signal transmission time, and the controlled terminal or the controlled device outputs the first signal. By starting the generation of identification information at the time of transmission, by keeping the identification information between the control terminal and the controlled terminal or between the control terminal and the controlled device coincident, the signal difference on the control terminal side can be improved. When the occurrence is detected, by recognizing how far the transmitted control signal has been executed, the control logic in the control terminal can control the controlled terminal by the transmitted control signal that can be executed after the occurrence of the event. A system for coping with detection of a cross signal, wherein a subsequent process is performed in consideration of an operation on a terminal side or a controlled device side.