WO2000033539A1 - Systeme de communication - Google Patents
Systeme de communication Download PDFInfo
- Publication number
- WO2000033539A1 WO2000033539A1 PCT/JP1999/006704 JP9906704W WO0033539A1 WO 2000033539 A1 WO2000033539 A1 WO 2000033539A1 JP 9906704 W JP9906704 W JP 9906704W WO 0033539 A1 WO0033539 A1 WO 0033539A1
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- WIPO (PCT)
- Prior art keywords
- communication
- control information
- command
- communication protocol
- data
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
Definitions
- the present invention relates to a predetermined control device, one or more communication terminals, connecting the predetermined control device and the one or more communication terminals, and based on at least control information from the predetermined control device.
- a communication system having a communication device that connects a predetermined control device to one or more communication terminals and performs communication control on the one or more communication terminals based on control information of the predetermined control device.
- FIG. 9 shows a configuration of a communication system including a communication device.
- the communication device 101 in the communication system 100 includes a user control device 102, a communication network 103, an audio processing device 104 such as a telephone, and a data processing device 105 such as a network. And a video processing unit 106, a user interface unit 102a, an optical communication interface unit 103a, an audio interface unit 104a, and a data interface unit 105a. , And the video-in connection section 106a.
- the optical communication interface 103a and the communication network 103 are connected by an optical fiber LL to realize high-speed communication.
- a port 104p of the audio interface unit 104a and the audio processing unit 104 are connected by a 2-wire telephone line, and transmission / reception of audio information is realized.
- a port 105p of the data interface section 105a and the data processing device 105 such as the LAN interface, for example, a twisted pair of the 10 BASE standard (IEEE 802.3) Line (UTP -Connected in 5) to realize data transmission and reception.
- the port 106p of the video interface unit 106a and the video processing unit 106 are connected by a coaxial cable, and transmission / reception of image information is realized.
- a cable corresponding to the user interface unit 102a such as an RS232C interface cable, is provided between the user control unit 102 and the user interface unit 102a. And the control information from the user control device 102 is input to the communication device 101.
- the communication device 101 has a communication protocol engine 107.
- the communication protocol engine 107 multiplexes information such as voice, data, images, etc., mainly on the communication network 103 side. It has a communication protocol for demultiplexing. If the contents of this communication protocol are specifically described, first, a process of converting an analog telephone signal into a digital signal or a digital signal into an analog telephone signal is performed. This conversion processing includes, for example, processing of a ring indicator, detection of an off-hook, a dialer, and voice / digital conversion.
- the communication protocol converts an analog image signal into a digital image signal or converts a digital image signal into an analog image signal.
- the audio processing device 104 multiplexes information received from the audio processing device 104, the data processing device 105, and the video processing device 106, and sends out the multiplexed information to the optical fiber LL. Conversely, demultiplexes the information received from the optical fiber. Further, it transmits information to the communication network 103 via the optical fiber LL, and receives information from the communication network 103 via the optical fiber LL.
- the user control device 102 sends control information to the communication protocol engine via the user interface unit 102a, and the communication network 103, the audio processing device 104, Communication control between the data processing device 105 and the video processing device 106 can be performed.
- the optical communication interface section 103a, the audio interface section 104a, the data interface section 105a, and the video interface section 110a Z stop, loopback processing of each interface section 104a to 106a, use of voice, data, and images in optical fiber LL It is possible to control processing such as setting processing bandwidth.
- the contents of the register RR in the user interface section 102a are associated with the communication protocol modules 107a to 107d in the communication protocol engine 107. Is done. That is, the control information FA for controlling the start / stop of the optical communication interface unit 103a is stored in the register RR0 corresponding to the address BASE + 0 as viewed from the user control device 102 side.
- the communication protocol module 10a always reads the control information stored in the register RR0, and controls the start / stop of the optical communication interface 103a based on the read result.
- control information FA is always stored in the register RR0
- the user control device 102 transmits the control information FA by designating the address BASE + 0 corresponding to the register RR0
- the communication protocol module 107a Then, the control information FA is obtained from the register RR0.
- the control information PA for starting / stopping each of the interface units 104a to 106a is fixedly stored in the register RR1, and the user control unit 102 stores the address corresponding to the register RR1.
- BAS E + 1 is specified to store the control information PA
- the communication protocol module 10 7b acquires this control information PA from the register RR1 and activates each interface section 104a to l06a. Control / stop.
- control information PL of the loop-back processing of each interface section 104a to 106a is also included. Each of them is fixedly stored in the registers RR2 to RR5, and the user control unit 102 controls each of the addresses BASE + 2 to: BASE + 5 corresponding to the registers RR2 to RR5.
- the communication protocol module 107c acquires the control information PL from the register RR2 and controls the loopback processing.
- the communication protocol module 107d receives the information from the registers RR3 to RR5.
- Control information AB, DB, and VB are acquired to control the processing for setting the bandwidth used for audio, data, and images.
- This communication protocol ⁇ Joule 107d supports three registers RR3 to RR5, but the information storage unit of each register RR is fixed, and the bandwidth setting is stored in one register. This is because it cannot be done. However, each cash register The control information stored in RR3 to RR5 is fixed.
- FIG. 11 shows a main configuration of a communication device when two communication functions (implemented by 107 e and 107 f) are added to the configuration of the communication device in FIG. 10.
- the added block 107 e is a block for performing a process of selecting a speech coding algorithm, and control information for this is control information AC.
- Block 107f is a block for performing the compression processing overnight, and the control information for this is control information DM.
- the control information AC is placed in the vicinity of the control information AB for setting the audio bandwidth
- the data compression process is performed To be targeted
- the control information DM is placed in the vicinity of the control information DB that sets the data bandwidth in the register layout.
- control information AC is inserted into the register RR 4 and the control information DM is inserted into the register RR 6.
- the control information DB located at Regis evening RR4 is now located at Regis evening RR5.
- the control information VB that has been replaced and placed in Registrar RR 5 will be relocated to Registrar RR 7. Therefore, the user control device 102 must change the address in accordance with the change of the register.
- block 107 d changes from register RR 4 to register RR 5 and register RR 5 to register RR 7. Must be modified. Therefore, a change in the communication protocol involves major modifications, such as a change in the location of the registry, a change in the address of the user control device 102, and a change in the routing between the other realization blocks and the registry.
- a first aspect of the present invention provides a predetermined control device, one or more communication terminals, and a connection between the predetermined control device and the one or more communication terminals.
- a communication device having one or more communication protocol modules for performing communication control on the one or more communication terminals based on control information from the communication device, wherein the communication device transmits from the predetermined control device.
- a memory for temporarily storing the control information sequentially stored, a control information obtaining means for sequentially obtaining the control information temporarily stored in the memory, and broadcasting the control information to the one or more communication protocol modules; and the one or more communications Provided before the input side of one or more communication protocol modules corresponding to each protocol module and broadcasted by the control information acquisition means
- One or more detection means for detecting whether the control information is control information to be processed by each of the one or more communication protocol modules, and each of the one or more communication protocol modules When one or more detection means is control information to be processed by the communication protocol module, processing is performed on the control information.
- the storage position of the control information in the memory is not fixed, and the control information obtaining means reads the control information in the memory and broadcasts it to each detecting means, and each detecting means serves as its own detecting means. Only when it is detected that the control information is to be processed by the corresponding own communication protocol module, information required for each communication protocol module is sent to each communication protocol module, and accordingly, each communication protocol module is transmitted. Since the processing is executed by the user, the design change of the communication device can be realized only by adding or deleting the communication protocol module.
- the design change of the communication device can be realized only by adding or deleting the communication protocol module, the time and labor required for the design change can be significantly reduced and reduced.
- control device does not need to make the address of the control information correspond to the memory arrangement of the communication device. Therefore, it is not necessary to change the design of the control device in order to change the protocol implementation design for changing the communication protocol. t ,.
- a second invention is characterized in that, in the first invention, the control information acquisition means and one or more detection means for each one or more communication protocol modules are connected by a bus.
- control information is specifically transmitted from the control information acquisition means via the bus, and one or more detection means arranged at the preceding stage of each communication protocol module correspond to each detection means. Since only the control information for each communication protocol module is detected, incorrect control information is input to each communication protocol module. This prevents malfunctions and failures before they occur.
- the one or more communication protocol modules are configured for each processing category of the control information.
- control information is associated with one or more communication protocol modules, when a new communication protocol process is added or deleted, the corresponding communication protocol module is simply added or deleted. Design changes can be made.
- the memory is a control space for temporarily storing control information from the control device side to the one or more protocol modules; A status space for temporarily storing status information from the protocol module side to the control device side, wherein the control device writes control information in a control space of the memory, and a status from the status space of the memory. It is characterized by reading information.
- bidirectional communication in which control information can be transmitted via a memory and status information can be received can be realized, so that operability of processing performed by the control device on the communication device can be improved.
- control information written in the control space comprises a command number and a command data
- control device comprises at least the command number and the command data. And temporarily stored in the memory sequentially as a pair.
- the control information is related to the own communication protocol module based on the command number. It can be quickly determined whether or not there is.
- the control space comprises: a command space composed of a pair of the command number and the command data composed of a predetermined information unit; A command space for temporarily storing the command data when the command data amount exceeds the data amount of the predetermined information unit. If the amount exceeds overnight, The information corresponding to the address in the data space for temporarily storing the contents of the command data in place of the command data to be stored is described, and the head of the command data stored in the data space is described.
- control information is stored in the memory as a pair consisting of the command number of the predetermined information unit and the command data in principle, so that the control information can be searched quickly.
- each of the information corresponding to the address described in the predetermined information unit or the information corresponding to the data length is a virtual address shifted by a predetermined amount.
- it is a virtual data length
- the control device processes the virtual address or the virtual data length as an address or data length which is reversely shifted by a predetermined amount.
- FIG. 1 is a block diagram showing a schematic configuration of a communication system according to an embodiment of the present invention.
- FIG. 2 is a diagram showing the relationship between the address space of the control device 2 and the memory space of the communication device 1.
- FIG. 3 is a diagram showing the relationship between the command space and the data space.
- FIG. 4 is a diagram showing a detailed configuration of the command space and the data space.
- FIG. 5 is a flowchart showing a processing procedure of the command acquisition unit 8.
- FIG. 6 is a block diagram of control information processing in a specific communication device to which the embodiment of the present invention is applied.
- Fig. 7 is a diagram showing specific data contents in the command space and the data space.
- FIG. 8 is a diagram showing a configuration when a design change is made to the communication device shown in FIG.
- FIG. 9 is a diagram illustrating a specific example of a communication system including a communication device.
- FIG. 10 is a diagram showing a relationship between a register and a communication protocol realization block in a conventional communication device.
- FIG. 11 is a diagram showing a configuration when a design change is made to the conventional communication device shown in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a block diagram showing a schematic configuration of a communication system according to an embodiment of the present invention.
- a control device 2 is connected to a communication device 1 and controls a plurality of communication terminals 3-1 to 3-n connected to the communication device 1 via the communication device 1.
- the connection between the communication terminals 3-1 to 3-n and the communication device 1 is a communication network.
- the communication device 1 mainly includes a control device interface unit 4, a communication protocol engine 5, and a communication network interface unit 6-1 to 6-n.
- the control device interface section 4 includes a memory 7, a command acquisition section 8, and a plurality of detection sections 91 to 91 m.
- the control device 2 writes the control information from the control device 7 to the memory 7 and reads the status information from the memory 7.
- a control space Ea for storing the control information and a status space Eb for storing the status information are logically mixed.
- the control space Ea has two areas of a command space E1 and a data space E2.
- the command space E1 is configured by a pair of a command number and a command data, and the pairs are sequentially stored according to an access from the control device 2. If the command data cannot be represented within the width of the memory 7, the command data is stored in the data space E2 for storing the command data that could not be represented within the width of the memory 7. Information is case It acts as a pointer. In other words, the command
- the configuration of the status space Eb is a fixed space that notifies the control device of the execution result of each command from the communication protocol.
- the detailed configuration of the memory 7 will be described later.
- the command acquisition unit 8 and the plurality of detection units 9-1 to 9-m are connected by the backend bus 12.
- Each of the detection units 9-1 to 9-m is provided with a plurality of communication protocol modules 10-1 to 10-m provided in the communication protocol engine 5 and performing communication processing corresponding to each command.
- Each of the detection units 9-1 to 9-m is connected to each of the communication protocol modules.
- the command acquisition unit 8 automatically fetches the control information temporarily stored in the memory 7 and broadcasts the fetched control information to each of the detection units 9-1 to 9-m via the backend bus 12. I do.
- Each of the detectors 91 to 9-m receives the control information broadcast via the back-end bus 12 and decodes the command number, and the decoding result corresponds to its own communication protocol module corresponding to the detector.
- the control information is sent to the own communication protocol module only when the control information is for the own communication protocol module corresponding to the own detection unit.
- each of the detecting units 9_1 to 9-m recognizes that the decoding result is not for the own communication protocol module corresponding to the own detecting unit, it ignores the control information.
- the communication protocol engine 5 has a plurality of communication protocol modules 10-1 to 10-m, and a communication protocol management unit 11 for managing them. As described above, each of the communication protocol modules 10-1 to 10-m performs command processing corresponding to a command number. Therefore, each communication protocol module 1 0 1:! 110-m does not necessarily perform processing corresponding to the communication terminals 3-1 to 3-n. Each communication protocol module 10—1 to 10—m receives control information or processing necessary for processing of its own communication protocol module from the detection unit 9-1 to 91 m connected to the own communication protocol module. Information, for example, command data, is received and a predetermined communication protocol process is executed.
- each communication professional The protocol modules 10-1 to 10-m can describe the communication protocol processing irrespective of the position in the memory where the control information corresponding to the own communication protocol module is stored.
- the communication protocol management unit 11 Based on the result of the communication protocol processing, the communication protocol management unit 11 communicates with the communication network interface unit 6_1 to 61-n and the corresponding communication terminal 3-1 to 3-n via the bus 13. It manages and processes the data that flows through the connection medium between them.
- the storage position of the control information stored in the memory 7 is not fixed, but is sequentially stored in the order transmitted from the control device 2, so that, for example, a new
- a new communication network login interface 6— (n + 1) and a new communication network By simply adding a new communication protocol module 10- (m + 1) and a detecting unit 91 (m + 1) corresponding to the control information, without worrying about the location of the new control information in the memory, The communication terminal 3— (n + 1) can be controlled.
- the control device 2 only needs to transmit new control information to the communication device 1, and does not need to change the address of other control information due to a change in a memory location due to the addition of new control information. .
- the communication protocol module 10— (m + 1) does not need to describe the location of the memory 7 where new control information is stored, and the other communication protocol modules 10—1 to 10—m have no memory. There is no need to modify the memory location by adding this new communication protocol module 10— (m + 1) because the description of the location in 7 is not obvious.
- Fig. 2 shows the relationship between the address space E0 of the controller 2 and the memory space E of the memory 7.
- FIG. 2 the addresses BASE + 0 to BASE + n of the control information and the status information transmitted from the control device 2 can use the address space E0 of the control device 2 arbitrarily.
- the control information is written into the control space Ea by the control device 2, and the status information is read from the status space Eb by the control device 2.
- the control space Ea and the status space Eb are stored in the memory space Ea. Are logically separated from each other, and can exist together. That is, the control device 2 can access the memory 7 as the memory space E corresponding to an arbitrary address space E0.
- FIG. 3 is a diagram showing a command space E1 and a data space E2 which constitute the control space Ea.
- the control space Ea is composed of a command space E1 and a data space E2, but if the data for the command is smaller than the width of the memory 7, the data space E2 is not used and the command space E2 is not used.
- the data byte DB constituting the space E1 is used.
- the command space E1 is a space in which pairs of a command byte CB having a width of the memory 7 and a data byte DB having a width of the memory 7 are continuously described.
- the command space E1 is a space where the command byte CB and the data byte DB alternately appear. Therefore, the control information is composed of at least twice the width of the memory 7 including the command byte CB having the width of the memory 7 and the data byte DB having the width of the memory 7.
- the control information consisting of the command byte CB (1) and the data byte DB (1) is written into the width of the two memories 7 of # 2 and # 3 in the memory space E, and the address space £ 0 O + 2, BASE + 3 o
- the width of the memory 7 is B bytes
- the width of the command byte CB is 8 ⁇ B bytes.
- the bit (8xB-1) of the command byte CB is information on whether or not the next control information exists. When it is “1”, control is continuously performed in the memory space to the next byte. It indicates that information exists, and if it is "0", it indicates that there is no control information in the next byte in succession, which means that it is the last control information in a series of control information.
- Bits (8XB-2) and (8XB-3) indicate the command type For information, "00" indicates command type 0, and "01" indicates command type 1.
- Command type 0 indicates that the command data is indicated in B bytes or less, and the command data itself is stored in the paired data byte CB.
- Command type 1 indicates that the command data is more than B bytes, and the address of the data space E2 where the command data is stored is stored in the paired data byte CB. It has a function as a pointer.
- the command type "10" or "01" is reserved for future expansion.
- Bits (8xB-4) to 0 indicate the command number itself, and have a function as a command identifier indicated by the (8xB-3) bits.
- the data byte DB (i) has the (2 XB) bytes.
- the address of the data space E2 where the command data of the data is stored is described in B bytes as the data address. This address indicates the address where the length of the command data in the data space E2 is stored.
- the length of the command space is stored in the first byte. For example, if B is 1 and the data length is 2 bytes, "0000 0010" is stored in the data length.
- the controller 2 sets an address value shift amount in advance, and shifts by the set address shift amount. Considering this, it is necessary to store the virtual address in the database DB. By using such a virtual address, a large address value can be specified. For example, if B is 1 and the real address value is represented by 9 bits, the virtual address shifted right by 1 bit in advance is stored in the data byte DB, and this is used to obtain the real address in the data space. Shift the virtual address left by one bit. As a result, a large address value can be handled.
- the data length in the data space E2 can be realized by using a large value for the virtual data length.
- B is 1 and data length is 9 bits.
- the virtual data length shifted right by 1 bit is stored as the data length, and the actual data length can be obtained by shifting this virtual data length left by 1 bit when obtaining the data length. As a result, a large command data can be stored.
- the above-mentioned virtual address or virtual data length needs to be a value including the real address or real data length.
- Using a virtual address or virtual data length with such a margin may slightly reduce the memory utilization efficiency, but always describe the command byte CB or data length within the width of the memory 7. This has the advantage that the speed of the reading process from the memory 7 can be accelerated.
- the shift amount of the address or the data length described above is preset in the communication device 1, but the shift amount between the address and the data length may be set to be different from each other, or may be set to the same shift amount. May be.
- the command acquisition unit 8 determines whether it is time to acquire a command (step S 1).
- the reason for determining whether it is time to acquire a command is because the memory 7 is shared by the control device 2 and the communication protocol engine 5. That is, it is necessary to separate the time at which the control device 2 writes control information and the time at which the command acquisition unit 8 reads control information (command acquisition time). Similarly, it is necessary to separate writing and reading of status information, but this can be performed in the same manner as control information.
- the switching setting of the command acquisition time can be achieved by using the known interrupt control or the time division control. When interrupt control is applied, an interrupt can be generated and switched at the end of each write or read.
- control information can be defined in the same way as for command type 0.
- step S1 the command acquisition unit 8 reads the command byte CB and the data byte DB from the command space E1 (step S2), and the command type is “ It is determined whether it is "0" or "1” (step S3). If the command type is "0", since the command data is described in the data byte DB, the command data is broadcast to the bank bus 12 together with the command number (step S4).
- step S5 it is determined whether or not there is the next control information by referring to the value of the bit (8xB-1) of the command byte CB (step S5). If the bit (8 XB—1) is “1” and control information exists in the next byte, the process proceeds to step S 3 and the above processing is repeated (step S 6), and the bit (8 ⁇ B—1) becomes If "0" indicates that no control information exists in the next byte, the process proceeds to step S1 to repeat the above processing.
- step S3 determines whether the command type is “1”
- the value of the data byte DB is bit-shifted by a preset address shift amount (step S7), and the shifted real address is Transition (step S8).
- the data length described in the byte of the real address value is bit-shifted by a preset data length shift amount (step S9), and the command data for the real data length is read (step S9).
- step S10) the read command data is broadcast to the back-end bus 12 together with the command number (step S11), and the process proceeds to step S5 to repeat the above-described processing.
- the command acquisition unit 8 automatically reads out the control information stored in the memory space in an arbitrary order independently of the control device 2 by the control device 2 side, and the communication protocol modules 10-1 to 10 Each detector corresponding to 10—m Broadcast to 9 to 1 m. As described above, this broadcasted control information is transmitted to this own communication protocol module only when it is detected that each of the detectors 91 to 91 m is associated with the own communication protocol module corresponding to the own detector. It will be sent out and the process will be executed. Next, a specific example in which the present invention is applied to a communication system including the communication device shown in FIG. 9 will be described.
- the user control device 102 is the control device 2
- the communication device 101 is the communication device 1
- the communication network 103 the audio processing device 104
- the data processing device 105 and the video processing device.
- the device 106 corresponds to the communication terminals 3-1 to 3-n.
- the user interface section 102a is provided for the control device interface section 4
- the communication protocol engine 107 is provided for the communication protocol engine 5
- the optical communication interface section 103a and the audio interface section are provided.
- 104a, data interface section 105a, and video interface section 106a correspond to communication network interface sections 6-1 to 6-n.
- the user interface 102a has a memory 7, a command acquisition unit 8, a non-end bus 12, and detection units 9-1 to 9-m, and the communication protocol engine 107 has a communication protocol management unit. And a communication protocol module 10-1 to 10-m.
- the other components will be described using the same reference numerals as in FIG.
- FIG. 6 achieves a function similar to the function of FIG. 10 by applying the present invention.
- the internal arrangement of the memory 7 is not fixed, and the command space E 1 and the data space E It is only classified into 2.
- four communication protocol modules 10-1 to 10-4 are modules that realize the same functions as the communication protocol modules 107a to 107d in FIG.
- Start / stop processing of optical communication interface 110 a start / stop processing of each interface face 104 a ⁇ 106 a Start / stop processing of each interface, interface 104 a ⁇ Perform loopback processing of 106a and control processing of used bandwidth. It also has detectors 9-1 to 9-1-4, each of which is provided corresponding to the communication protocol module 10-1 to 10-4.
- the command acquisition unit 8 broadcasts the control information acquired from the memory 7 to each of the detection units 911 to 914 via the backend bus 12. On the back-end bus 12, a control signal indicating control information, the contents of a command byte CB, and a data byte DB (including a data length if necessary) are broadcast.
- Each detector 9-1 1 to 9-1 4 corresponds to each detector If the command is for each communication protocol module 10 0-1 to 10-4, the information necessary for processing of each communication protocol module 10-1 to 10-4 is sent to each communication protocol module 10-4. Send them to 1-10-4 and execute them.
- the control information includes the null command described above and four commands corresponding to the communication protocol modules 10-1 to 10-4. In this description, it is assumed that the width B of the memory 7 is 1 byte.
- the null command has a command type of “0 0” and a command number of “0 0 0 0 0”, and the start / stop command of the optical communication interface 103 a has the command type
- each interface section 104a to 106a is command type "0 0" and command number
- each interface section 104 a to 106 a is command type ⁇ 0 0 '', command number ⁇ 0 0 0 1 1 '', and is used.
- the bandwidth control command has a command type "0 1” and a command number "0 0 1 0 0". These command numbers are commonly used for the user control device 102 side.
- the DB for the start / stop command of the optical communication interface 1 0 3a instructs start when bit 0 is “1” and stops when bit 0 is “0”. To instruct. All other bits are set arbitrarily.
- the data byte DB for the start / stop command of each interface section 104 a to l 06 a includes the video interface section 106 a as a control target when bit 7 is ⁇ 1 ''.
- bit 6 is “1”
- bit 5 is “1”
- the audio interface section 104 a is included in the control target.
- bit 0 is “1”
- start is instructed. All other bits are set arbitrarily.
- the address DB in which the command data is stored is specified in the data DB for the bandwidth control command, and a 4-byte command data is stored in the specified data space.
- the first byte is set to “0000 0011”, which indicates the data length of three bytes
- the second byte is used for the audio bandwidth usage
- the third byte is used for the data usage bandwidth.
- the fourth byte of the width the first byte of the video usage bandwidth is stored.
- the percentage of the used bandwidth is expressed using the upper 4 bits and the lower 4 bits, and the total used bandwidth of each byte is set to be 100%. For example, if the audio usage bandwidth is 25%, it will be “001 00101”.
- FIG. 7 (a) shows that the video interface section 106a is stopped, the audio interface section 104a and the data interface section 105a are stopped. This shows the contents of the command space when instructing the loop back processing of a.
- “1000 0010” is stored in the command byte CB0 of the command space E1 corresponding to the address space BASE + 0, BAS E + 1 of the user control device 102, and “1000 0010” is stored in the data byte DB0. 10000000 ”is written.
- Bit 7 of command byte CB0 is "1", indicating that the next byte has control information.
- the command number of the command byte CB0 is “00010”, which indicates that the command is a start / stop command for the interface sections 104a to 106a. Since bit 7 of data byte DB0 is “1”, it indicates that the command is a start / stop command for video interface 106a, and since bit 0 is “0”, video It can be seen that the command is to stop the in-face part 106a.
- command space E corresponds to the address space BASE + 2, BASE + 3.
- a stop is instructed by using a start / stop command for the optical communication interface unit 103a, and furthermore, each is controlled by using a use bandwidth control command.
- An instruction is issued to set the bandwidth used.
- Each used bandwidth is indicated by 3 bytes in the data space E2, and the audio bandwidth is set to 15%, the data bandwidth is set to 50%, and the video bandwidth is set to 35%. are doing.
- the relative address value of the address space E2 is stored in the data byte DB1 by shifting the relative address value of the address space E1 right by one bit in advance, and this address value is converted to an address value shifted left by one bit at the time of reading. You. All bit values that have been hidden by shifting are set to “0”.
- each of the communication protocol modules 10-5, 10-6 has a detection unit 9-5, 9-1-6 similarly to the communication protocol modules 10-1 to L0-4. Further, the respective detectors 9-1 5 and 9-6 are commonly connected to the back-end bus 12. Therefore, each detector 9 :! 9 to 6 receive the control information broadcast from the command acquisition unit 8, and if the control information is for the own communication protocol module corresponding to the own detection unit, the processing of the own communication protocol module is performed. Is sent to the local communication protocol module and executed.
- the user control device 102 only needs to transmit to the communication device 101 using a common command byte format and a data byte format for the voice coding algorithm selection process command or the data compression process.
- the command acquisition unit 8 only needs to sequentially read the contents of the memory space and broadcast it to the backend bus 12, so there is no need to particularly change the design of the command acquisition unit 8.
- each communication protocol module 10-1 to 10-6 performs processing regardless of the address space arrangement, it is necessary to modify each communication protocol module 10-1 to 10-6.
- simply adding the communication protocol modules 10-5 and 10-16 and the corresponding detectors 9-5 and 9-6 can improve the function of the communication control processing, and can provide a versatile communication device. It is possible to realize a communication system having
- any of the detection units 91-1 to 9-6 detects that the communication protocol module is not related to the own communication protocol module. This control information is not sent to the communication protocol modules 10-1 to 10-6, and no processing is performed on this control information. As a result, a malfunction does not occur due to an instruction of incorrect control information, and a failure can be prevented from occurring.
- the communication control process is properly performed only by inputting similar control information to the communication device. It has the flexibility of being able to do it. In this case, if there is no communication protocol module that processes the corresponding control information as described above, the communication protocol processing is not executed.
- the present invention is a communication system capable of remarkably reducing the time and effort required for a change in the design of a communication device following a change in a communication protocol.
- the storage position of the control information in the memory is not fixed, and the control information acquisition means reads the control information in the memory and broadcasts it to each detection means, and each detection means corresponds to the self-detection means. Only when the control information to be processed by the own communication protocol module is detected, the information necessary for each communication protocol module is sent to each communication protocol module, whereby each communication protocol module performs processing. Since it is executed, there is an effect that the design change of the communication device can be realized only by adding or deleting the communication protocol module.
- the design change of the communication device can be realized only by adding or deleting the communication protocol module, there is an effect that the time and labor required for the design change can be remarkably shortened and reduced.
- control device does not need to make the address of the control information correspond to the memory layout of the communication device. This has the effect that it is only necessary to add or change commands and data that can be transmitted from the control device to the communication device.
- each communication protocol module is designed to perform communication protocol processing regardless of the memory space, it is not necessary to change the design of the communication protocol module itself, such as changing addresses when adding or deleting communication protocol modules. Has an effect.
- control information is stored in the memory in a predetermined information unit, there is an effect that the reading process of the control information and the like can be performed at a high speed.
- each communication protocol module has a detection unit and performs processing only when processing related to the own communication protocol module is performed, even if incorrect control information is input and acquired, a malfunction may occur. This has the effect that no failure occurs and a failure can be prevented before it occurs. Due to this feature, the communication protocol was changed, If 3539 P is added, changes to the communication protocol module, development for addition, and changes to the command and data unit on the control device side and development for addition can be performed independently. It has the effect that it becomes possible.
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/601,192 US7076572B1 (en) | 1998-11-30 | 1999-11-30 | Communication memory for receiving control information sequentially and in parallel form for temporary storage and broadcasting on parallel bus |
EP99973206A EP1061713B1 (en) | 1998-11-30 | 1999-11-30 | Communication system |
DE1999637392 DE69937392T2 (de) | 1998-11-30 | 1999-11-30 | Kommunikationssystem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34059998A JP3060176B2 (ja) | 1998-11-30 | 1998-11-30 | 通信システム |
JP10/340599 | 1998-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000033539A1 true WO2000033539A1 (fr) | 2000-06-08 |
Family
ID=18338535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/006704 WO2000033539A1 (fr) | 1998-11-30 | 1999-11-30 | Systeme de communication |
Country Status (5)
Country | Link |
---|---|
US (1) | US7076572B1 (ja) |
EP (1) | EP1061713B1 (ja) |
JP (1) | JP3060176B2 (ja) |
DE (1) | DE69937392T2 (ja) |
WO (1) | WO2000033539A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1227413A1 (en) * | 2001-01-25 | 2002-07-31 | Telefonaktiebolaget L M Ericsson (Publ) | Method for optimised locating of indexed records of static data with different length |
CN114422101A (zh) * | 2021-12-30 | 2022-04-29 | 湖南科大天河通信股份有限公司 | 一种基于超低速率数传电台信息通信的置换地址算法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US8402151B2 (en) | 2007-12-07 | 2013-03-19 | Roche Diagnostics Operations, Inc. | Dynamic communication stack |
CA2700119C (en) * | 2007-12-13 | 2014-03-18 | Joji Ido | Train communication system, communication device and relay device |
TWI665556B (zh) * | 2018-05-11 | 2019-07-11 | 緯穎科技服務股份有限公司 | 輸入輸出介面配置的方法、可配置輸入輸出介面的裝置及控制系統 |
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JPH01217657A (ja) * | 1988-02-26 | 1989-08-31 | Nec Corp | 通信処理方式 |
JPH05167636A (ja) * | 1991-12-18 | 1993-07-02 | Nec Corp | ネットワーク管理実装システム |
JPH10149968A (ja) * | 1996-11-15 | 1998-06-02 | Kokusai Electric Co Ltd | 半導体製造装置の通信制御装置 |
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JPH03123244A (ja) * | 1989-10-06 | 1991-05-27 | Matsushita Electric Ind Co Ltd | 通信装置 |
AU630299B2 (en) * | 1990-07-10 | 1992-10-22 | Fujitsu Limited | A data gathering/scattering system in a parallel computer |
GB9219709D0 (en) | 1992-09-17 | 1992-10-28 | D2B Systems Co Ltd | Apparatus interconnected for the communication of control messages |
US6275869B1 (en) * | 1994-11-22 | 2001-08-14 | Eastman Kodak Company | System for network communication of image information between imaging devices according to multiple protocols |
US5742602A (en) * | 1995-07-12 | 1998-04-21 | Compaq Computer Corporation | Adaptive repeater system |
US5802065A (en) | 1995-10-23 | 1998-09-01 | Kawasaki Steel Corporation | Data receiving device |
EP0899955A3 (en) * | 1997-08-27 | 2001-01-31 | Matsushita Electric Industrial Co., Ltd. | Control information generating apparatus for broadcast system |
US6728771B2 (en) * | 1998-03-20 | 2004-04-27 | Siemens Information And Communication Networks, Inc. | Generic transport option for transporting messages in relay or broadcast mode via combinations of ISDN B-channels or D-channels |
US6230225B1 (en) * | 1998-12-01 | 2001-05-08 | Compaq Computer Corp. | Method and apparatus for multicasting on a bus |
-
1998
- 1998-11-30 JP JP34059998A patent/JP3060176B2/ja not_active Expired - Fee Related
-
1999
- 1999-11-30 DE DE1999637392 patent/DE69937392T2/de not_active Expired - Lifetime
- 1999-11-30 US US09/601,192 patent/US7076572B1/en not_active Expired - Fee Related
- 1999-11-30 WO PCT/JP1999/006704 patent/WO2000033539A1/ja active IP Right Grant
- 1999-11-30 EP EP99973206A patent/EP1061713B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01217657A (ja) * | 1988-02-26 | 1989-08-31 | Nec Corp | 通信処理方式 |
JPH05167636A (ja) * | 1991-12-18 | 1993-07-02 | Nec Corp | ネットワーク管理実装システム |
JPH10149968A (ja) * | 1996-11-15 | 1998-06-02 | Kokusai Electric Co Ltd | 半導体製造装置の通信制御装置 |
Non-Patent Citations (1)
Title |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1227413A1 (en) * | 2001-01-25 | 2002-07-31 | Telefonaktiebolaget L M Ericsson (Publ) | Method for optimised locating of indexed records of static data with different length |
CN114422101A (zh) * | 2021-12-30 | 2022-04-29 | 湖南科大天河通信股份有限公司 | 一种基于超低速率数传电台信息通信的置换地址算法 |
CN114422101B (zh) * | 2021-12-30 | 2024-03-19 | 湖南科大天河通信股份有限公司 | 一种基于超低速率数传电台信息通信的置换地址算法 |
Also Published As
Publication number | Publication date |
---|---|
DE69937392D1 (de) | 2007-12-06 |
EP1061713B1 (en) | 2007-10-24 |
EP1061713A4 (en) | 2005-08-17 |
JP2000165470A (ja) | 2000-06-16 |
JP3060176B2 (ja) | 2000-07-10 |
DE69937392T2 (de) | 2008-02-21 |
EP1061713A1 (en) | 2000-12-20 |
US7076572B1 (en) | 2006-07-11 |
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