CN116662228B - Access method for time-division multiplexing local memory - Google Patents
Access method for time-division multiplexing local memory Download PDFInfo
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- CN116662228B CN116662228B CN202310712445.1A CN202310712445A CN116662228B CN 116662228 B CN116662228 B CN 116662228B CN 202310712445 A CN202310712445 A CN 202310712445A CN 116662228 B CN116662228 B CN 116662228B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
- G06F13/1668—Details of memory controller
- G06F13/1678—Details of memory controller using bus width
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention provides an access method of a time-division multiplexing local memory, which comprises the following steps: acquiring an access instruction, and determining an access data storage address of a local memory corresponding to each access equipment terminal according to the access instruction; according to the equipment identification of the access equipment terminal, the characteristics of access data are allocated time slots for the broadband storage bus; determining access configuration information of the local memory based on the allocation time slot, and accessing the local memory based on the access configuration information to obtain access data; the invention realizes the multiplexing of the multi-access equipment terminal on the broadband storage bus, improves the utilization rate of the broadband storage bus and improves the access efficiency to the local memory.
Description
Technical Field
The invention relates to the technical field of memory access, in particular to a time-division multiplexing local memory access method.
Background
The local memory is a memory which can only be accessed by the processor, along with the development of microelectronic technology, the integrated circuit is increasingly improved, functional components integrated on the microprocessor are increasingly more and more, the memory bus bandwidth of the microprocessor is also increasingly wider, and under the condition that two or more external accesses exist, the situation that the broadband memory bus is accessed in a queuing way can exist, so that the waste of the broadband memory bus is caused, and finally, the problem of low access efficiency of the local memory is caused.
Disclosure of Invention
The invention provides a time-sharing multiplexing local memory access method, which realizes the multiplexing of multiple access equipment terminals on a broadband memory bus, improves the utilization rate of the broadband memory bus and improves the access efficiency of the local memory.
An access method of a time-division multiplexing local memory, comprising:
s1: acquiring an access instruction, and determining an access data storage address of a local memory corresponding to each access equipment terminal according to the access instruction;
s2: according to the equipment identification of the access equipment terminal, the characteristics of access data are allocated time slots for the broadband storage bus;
s3: and determining access configuration information of the local memory based on the allocated time slot, and accessing the local memory based on the access configuration information to obtain access data.
Preferably, in S1, determining, according to the access instruction, an access data storage address of the local memory corresponding to each access device terminal, includes:
acquiring the access requirement of each access equipment terminal from the access instruction;
and acquiring the access data characteristics of the access equipment terminal from the access requirement, and acquiring an access data storage address corresponding to the access data characteristics according to a preset data-address mapping table.
Preferably, in S2, according to the device identifier of the access device terminal, the allocation of a time slot for the broadband storage bus according to the characteristics of the access data includes:
matching the equipment identifier of the access equipment terminal with the identifier in the equipment identifier library, and determining the access priority of the access equipment terminal according to the matching result;
determining the characteristics of the access data corresponding to the storage address according to the address characteristics of the access data storage address, and extracting the transmission time characteristics in the access data;
according to the access priority, sequencing the transmission time characteristics of each access equipment terminal to obtain a time characteristic sequence;
determining the length characteristics of a broadband storage bus, acquiring a first sequence time characteristic based on a time characteristic sequence, carrying out first matching division on the length characteristics, determining a time slot corresponding to the first time characteristic according to a division result, and setting a transmission identifier for the time slot based on access data;
acquiring the occupied length characteristics of the first time slot in the length characteristics to obtain the residual length characteristics, sequentially carrying out matching division on the residual length characteristics based on the time characteristics of the time characteristic sequence according to the sequence order until the residual length characteristics are completely matched with the time slots, and setting transmission identifications for the time slots based on access data;
and acquiring all time slots of the broadband storage bus, determining a data signal source of the time slots according to the transmission identification of the time slots, and realizing the time slot allocation of the broadband storage bus.
Preferably, after determining the data signal source of the time slot, the method further comprises:
judging whether the access data corresponding to the time feature sequence are all matched in the first time slot allocation;
if yes, completing the time slot allocation of the broadband storage bus;
otherwise, after the first time slot allocation is completed and the time slot allocation information is recorded, the time slot allocation of the broadband storage bus is cleared, and the unallocated access data is subjected to time slot allocation again on the broadband storage bus until the access data is completely allocated to the time slots.
Preferably, the first sequence time feature is obtained based on the time feature sequence, the first matching division is performed on the length feature, and the time slot corresponding to the first time feature is determined according to the division result, including:
determining a time length based on the first sequence time feature, determining a target length feature corresponding to the first sequence time feature based on a time-length corresponding relation, and matching the target length feature in the whole broadband storage bus to realize first matching division of the length feature;
based on the length and position of the target length feature, corresponding time slots are set, and the lengths and positions corresponding to different time slots are different.
Preferably, in S3, determining access configuration information of the local memory based on the allocated time slot includes:
determining time slot allocation times required by a broadband storage bus when an access instruction is realized, determining first time slot configuration information based on the time slot allocation times, determining change configuration information based on access characteristics when data access corresponding to each time slot allocation is finished, and determining overall access configuration information based on the first time slot configuration information and the change configuration information;
acquiring time slot bandwidth characteristics and terminal characteristics of each time slot when each time slot is allocated, determining second time slot configuration information based on the time slot bandwidth characteristics and on the basis of first time slot configuration information, determining authorized configuration information based on the terminal characteristics, and determining local access configuration information based on the second time slot configuration information and the authorized configuration information;
based on the global access configuration information and the local access configuration information, final access configuration information is determined.
Preferably, accessing the local memory based on the access configuration information to obtain access data includes:
distributing bus control rights for each access device terminal based on the access configuration information;
based on the access instruction, determining access data transmitted after each access equipment terminal acquires the bus control right;
and accessing the local memory by the access equipment terminal based on the bus control right and the transmitted access data, and receiving the access data.
Preferably, in S2, after allocating a time slot to the broadband storage bus, the method further includes: the method specifically comprises the following steps of:
acquiring a channel formed by the allocated current time slot from a broadband storage bus, and determining a standard channel state of the current time slot based on the priority of an access equipment terminal of the current time slot and transmission access data information;
detecting the channel state of the channel formed by the current time slot according to a preset evaluation index, determining the actual channel state, and judging whether the actual channel state meets the standard channel state requirement;
if yes, determining that the channel environment of the current time slot is normal;
otherwise, determining that the channel environment of the current time slot is abnormal, and carrying out first alarm reminding.
Preferably, after determining that the channel environment of the current time slot is normal, the method further comprises:
acquiring a time slot starting point and a time slot ending point of a current time slot, judging whether the time slot starting point and the time slot ending point establish connection with a corresponding access equipment terminal or not, and determining whether the connection is correct or not;
if yes, determining that the connection of the current time slot is normal;
otherwise, determining that the connection of the current time slot is abnormal, and carrying out second alarm reminding.
Preferably, after the connection of the current time slot is normal, the method further comprises:
acquiring characteristics of access data corresponding to a current time slot, acquiring transmission data characteristics in the transmission process of the current time slot, and matching the characteristics of the access data corresponding to the current time slot with the transmission data characteristics to obtain a matching result;
obtaining the matching degree from the matching result, and judging whether the matching degree is larger than a first preset matching degree or not;
if yes, determining that the current time slot is normal; otherwise, judging whether the matching degree is larger than a second preset matching degree;
if yes, extracting the unmatched data characteristics in the characteristics of the access data corresponding to the current time slot and the transmission data characteristics, and determining the data parameter values of the unmatched data characteristics; otherwise, determining that the current time slot is abnormal, and carrying out a third alarm reminding;
after determining the data parameter values of the unmatched data features, judging the numerical value difference between the data parameter values of the feature corresponding to the access data and the transmission data feature of the current time slot under the same attribute, and judging whether the numerical value difference is smaller than a preset difference;
if yes, determining that the current time slot is normal;
otherwise, determining that the current time slot is abnormal, and carrying out a third alarm reminding.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
1) The time slot with the memory bus is allocated by analyzing the time of the azimuth equipment terminal which accesses the local memory and the access data memory address of the corresponding local memory, then the access configuration information of the local memory is determined based on the allocation time slot, and the local memory is accessed based on the access configuration information to obtain the access data, thereby realizing the multiplex transmission of the multi-access equipment terminal on the broadband memory bus, improving the utilization rate of the broadband memory bus and improving the access efficiency of the local memory.
2) The priority is determined according to the equipment identification of the access equipment terminal, the time slot on the access data re-broadband storage bus is determined according to the priority by combining the time characteristics of the access data, and under the condition that the broadband storage bus is finally ensured to be fully occupied in the re-sequential transmission, the bus utilization rate and the access efficiency are ensured, the access of the data is realized for important users, and the satisfaction degree of the access of the users is improved.
3) The bus control right is distributed to each access equipment terminal to realize the transmission of access data on the bus, the transmission of multi-terminal data on the broadband storage bus is realized, the multi-channel transmission of the multi-access equipment terminal on the broadband storage bus is realized, the utilization rate of the broadband storage bus is improved, and the access efficiency to the local memory is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities particularly pointed out in the specification.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a flow chart of a method for accessing a time-division multiplexing local memory according to an embodiment of the invention;
FIG. 2 is a flow chart of the method for obtaining access data storage addresses according to an embodiment of the present invention;
FIG. 3 is a flowchart of determining access configuration information of a local memory according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1:
an embodiment of the present invention provides a method for accessing a time-division multiplexing local memory, as shown in fig. 1, including:
s1: acquiring an access instruction, and determining an access data storage address of a local memory corresponding to each access equipment terminal according to the access instruction;
s2: according to the equipment identification of the access equipment terminal, the characteristics of access data are allocated time slots for the broadband storage bus;
s3: and determining access configuration information of the local memory based on the allocated time slot, and accessing the local memory based on the access configuration information to obtain access data.
In this embodiment, the access metrics include a plurality of access requests from different access devices.
In this embodiment, the access data storage address is an address of the access data in the local memory.
In this embodiment, the characteristic of the access data is a temporal characteristic of the access data.
In this embodiment, the access configuration information of the local memory is used to support allocation and control of timeslots, so as to implement ordered transmission of access data on the broadband memory bus.
The beneficial effects of above-mentioned design scheme are: the time slot with the memory bus is allocated by analyzing the time of the azimuth equipment terminal which accesses the local memory and the access data memory address of the corresponding local memory, then the access configuration information of the local memory is determined based on the allocation time slot, and the local memory is accessed based on the access configuration information to obtain the access data, thereby realizing the multiplex transmission of the multi-access equipment terminal on the broadband memory bus, improving the utilization rate of the broadband memory bus and improving the access efficiency of the local memory.
Example 2:
based on embodiment 1, an embodiment of the present invention provides a method for accessing a local memory in time division multiplexing, as shown in fig. 2, in S1, determining an access data storage address of a local memory corresponding to each access device terminal according to an access instruction, including:
s101: acquiring the access requirement of each access equipment terminal from the access instruction;
s102: and acquiring the access data characteristics of the access equipment terminal from the access requirement, and acquiring an access data storage address corresponding to the access data characteristics according to a preset data-address mapping table.
In this embodiment, the preset data-address mapping table is a mapping relationship between the storage data and the storage address of the local memory.
The beneficial effects of above-mentioned design scheme are: and providing a basis for data access by determining an access data storage address of the local memory corresponding to each access device terminal.
Example 3:
based on embodiment 1, the embodiment of the present invention provides a method for accessing a local memory in time-division multiplexing, in S2, according to a device identifier of an access device terminal, a time slot is allocated to a broadband memory bus according to a feature of access data, including:
matching the equipment identifier of the access equipment terminal with the identifier in the equipment identifier library, and determining the access priority of the access equipment terminal according to the matching result;
determining the characteristics of the access data corresponding to the storage address according to the address characteristics of the access data storage address, and extracting the transmission time characteristics in the access data;
according to the access priority, sequencing the transmission time characteristics of each access equipment terminal to obtain a time characteristic sequence;
determining the length characteristics of a broadband storage bus, acquiring a first sequence time characteristic based on a time characteristic sequence, carrying out first matching division on the length characteristics, determining a time slot corresponding to the first time characteristic according to a division result, and setting a transmission identifier for the time slot based on access data;
acquiring the occupied length characteristics of the first time slot in the length characteristics to obtain the residual length characteristics, sequentially carrying out matching division on the residual length characteristics based on the time characteristics of the time characteristic sequence according to the sequence order until the residual length characteristics are completely matched with the time slots, and setting transmission identifications for the time slots based on access data;
and acquiring all time slots of the broadband storage bus, determining a data signal source of the time slots according to the transmission identification of the time slots, and realizing the time slot allocation of the broadband storage bus.
The source of the data signal is in this embodiment associated with a memory address where the data is accessed.
In this embodiment, the access priority of the access device terminal is preset and set according to the actual situation.
In this embodiment, the address feature includes a feature to store data under the address.
In this embodiment, the transmission identification includes information of transmission access data, bus characteristics occupied, and device terminals of the transmitter.
In this embodiment, the length feature occupied by the first slot in the length feature is obtained to obtain the remaining length feature, the remaining length feature is sequentially matched and divided based on the time feature of the time feature sequence according to the sequence order until the remaining length feature is completely matched with the slot, a transmission identifier, specifically, a first-priority matched slot is set for the slot based on the access data, so that the data access of the device terminal with high priority is realized, after the bus broadband corresponding to the slot with the highest priority is removed from the broadband storage bus, the slot in the second-priority determination rebus is performed, and finally, the total occupation in the sequential transmission of the broadband storage bus is ensured.
The beneficial effects of above-mentioned design scheme are: the priority is determined according to the equipment identification of the access equipment terminal, the time slot on the access data re-broadband storage bus is determined according to the priority by combining the time characteristics of the access data, and under the condition that the broadband storage bus is finally ensured to be fully occupied in the re-sequential transmission, the bus utilization rate and the access efficiency are ensured, the access of the data is realized for important users, and the satisfaction degree of the access of the users is improved.
Example 4:
based on embodiment 3, the embodiment of the invention provides an access method of a time-division multiplexing local memory, which further includes after determining a data signal source of a time slot:
judging whether the access data corresponding to the time feature sequence are all matched in the first time slot allocation;
if yes, completing the time slot allocation of the broadband storage bus;
otherwise, after the first time slot allocation is completed and the time slot allocation information is recorded, the time slot allocation of the broadband storage bus is cleared, and the unallocated access data is subjected to time slot allocation again on the broadband storage bus until the access data is completely allocated to the time slots.
In this embodiment, the re-time slot allocation of unallocated access data on the broadband storage bus is the same as the first time slot allocation, and the first time slot allocation and the second time slot allocation do not interfere with each other.
The beneficial effects of above-mentioned design scheme are: after the first time slot allocation is finished, judging to realize the transmission of all access data, if not, carrying out the allocation of the time slots in the second time of bus transmission, improving the allocation of planned time slots and improving the access efficiency of the subsequent data.
Example 5:
based on embodiment 4, the embodiment of the invention provides a method for accessing a time-division multiplexing local memory, which obtains a first sequence time feature based on a time feature sequence, performs first matching division on a length feature, determines a time slot corresponding to the first time feature according to a division result, and comprises the following steps:
determining a time length based on the first sequence time feature, determining a target length feature corresponding to the first sequence time feature based on a time-length corresponding relation, and matching the target length feature in the whole broadband storage bus to realize first matching division of the length feature;
based on the length and position of the target length feature, corresponding time slots are set, and the lengths and positions corresponding to different time slots are different.
The beneficial effects of above-mentioned design scheme are: different time slots meeting the current data transmission are set according to the length and the position of the target length characteristic of the broadband memory bus, so that the accuracy of the time slots is ensured, and a foundation is provided for the rapid access of data.
Example 6:
based on embodiment 1, an embodiment of the present invention provides a method for accessing a local memory in time division multiplexing, as shown in fig. 3, in S3, access configuration information of the local memory is determined based on an allocated time slot, including:
s301: determining time slot allocation times required by a broadband storage bus when an access instruction is realized, determining first time slot configuration information based on the time slot allocation times, determining change configuration information based on access characteristics when data access corresponding to each time slot allocation is finished, and determining overall access configuration information based on the first time slot configuration information and the change configuration information;
s302: acquiring time slot bandwidth characteristics and terminal characteristics of each time slot when each time slot is allocated, determining second time slot configuration information based on the time slot bandwidth characteristics and on the basis of first time slot configuration information, determining authorized configuration information based on the terminal characteristics, and determining local access configuration information based on the second time slot configuration information and the authorized configuration information;
s303: based on the global access configuration information and the local access configuration information, final access configuration information is determined.
In this embodiment, the first slot configuration information and the second slot configuration information are used to support allocation of slots on the broadband storage bus.
In this embodiment, the change configuration information is used to support a change handoff of the slot configuration information.
In this embodiment, the authorization configuration information is used to support the use of the bus by the device terminal.
The beneficial effects of above-mentioned design scheme are: by determining access configuration information supporting slot allocation operations based on the information of the allocated slots, a resource configuration basis is provided for access to the local memory.
Example 7:
based on embodiment 1, an embodiment of the present invention provides a method for accessing a local memory in time division multiplexing, where accessing the local memory based on access configuration information to obtain access data, including:
distributing bus control rights for each access device terminal based on the access configuration information;
based on the access instruction, determining access data transmitted after each access equipment terminal acquires the bus control right;
and accessing the local memory by the access equipment terminal based on the bus control right and the transmitted access data, and receiving the access data.
The beneficial effects of above-mentioned design scheme are: the bus control right is distributed to each access equipment terminal to realize the transmission of access data on the bus, the transmission of multi-terminal data on the broadband storage bus is realized, the multi-channel transmission of the multi-access equipment terminal on the broadband storage bus is realized, the utilization rate of the broadband storage bus is improved, and the access efficiency to the local memory is improved.
Example 8:
based on embodiment 1, the embodiment of the present invention provides a method for accessing a time-division multiplexing local memory, in S2, after allocating a time slot to a broadband memory bus, the method further includes: the method specifically comprises the following steps of:
acquiring a channel formed by the allocated current time slot from a broadband storage bus, and determining a standard channel state of the current time slot based on the priority of an access equipment terminal of the current time slot and transmission access data information;
detecting the channel state of the channel formed by the current time slot according to a preset evaluation index, determining the actual channel state, and judging whether the actual channel state meets the standard channel state requirement;
if yes, determining that the channel environment of the current time slot is normal;
otherwise, determining that the channel environment of the current time slot is abnormal, and carrying out first alarm reminding.
In this embodiment, the access data information is transmitted with different priorities and corresponding standard channel conditions.
In this embodiment, the channel state includes channel quality, channel profile, multipath delay, doppler frequency offset, rank of MIMO channel, beamforming vector, etc., all belonging to the channel state information.
The beneficial effects of above-mentioned design scheme are: firstly, judging the state of a channel formed by time slots, ensuring the normal channel environment of the current time slot, otherwise, carrying out first alarm reminding, finding out abnormal problems of the channel in time, and ensuring the correctness of data access.
Example 9:
based on embodiment 8, the embodiment of the present invention provides a method for accessing a time-division multiplexing local memory, which further includes, after determining that the channel environment of the current time slot is normal:
acquiring a time slot starting point and a time slot ending point of a current time slot, judging whether the time slot starting point and the time slot ending point establish connection with a corresponding access equipment terminal or not, and determining whether the connection is correct or not;
if yes, determining that the connection of the current time slot is normal;
otherwise, determining that the connection of the current time slot is abnormal, and carrying out second alarm reminding.
The beneficial effects of above-mentioned design scheme are: and judging whether the time slot starting point and the time slot ending point establish connection with the corresponding access equipment terminal or not and determining whether the connection is correct or not, so that the connection of the access equipment terminal corresponding to the time slot is correct, and a basis is provided for correct transmission of access data.
Example 10:
based on embodiment 9, the embodiment of the present invention provides a method for accessing a time-division multiplexing local memory, which further includes, after the connection of the current time slot is normal:
acquiring characteristics of access data corresponding to a current time slot, acquiring transmission data characteristics in the transmission process of the current time slot, and matching the characteristics of the access data corresponding to the current time slot with the transmission data characteristics to obtain a matching result;
obtaining the matching degree from the matching result, and judging whether the matching degree is larger than a first preset matching degree or not;
if yes, determining that the current time slot is normal; otherwise, judging whether the matching degree is larger than a second preset matching degree;
if yes, extracting the unmatched data characteristics in the characteristics of the access data corresponding to the current time slot and the transmission data characteristics, and determining the data parameter values of the unmatched data characteristics; otherwise, determining that the current time slot is abnormal, and carrying out a third alarm reminding;
after determining the data parameter values of the unmatched data features, judging the numerical value difference between the data parameter values of the feature corresponding to the access data and the transmission data feature of the current time slot under the same attribute, and judging whether the numerical value difference is smaller than a preset difference;
if yes, determining that the current time slot is normal;
otherwise, determining that the current time slot is abnormal, and carrying out a third alarm reminding.
In this embodiment, the data parameter values of the data characteristics are related to the characteristics of the data.
The beneficial effects of above-mentioned design scheme are: by verifying the transmission data characteristics in the current time slot transmission process according to the characteristics of the access data corresponding to the current time slot, the correctness of the transmission data of the current time slot is ensured, the utilization rate of the broadband storage bus is improved, and the access efficiency to the local memory is improved.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. A method for accessing a time-division multiplexed local memory, comprising:
s1: acquiring an access instruction, and determining an access data storage address of a local memory corresponding to each access equipment terminal according to the access instruction;
s2: according to the equipment identification of the access equipment terminal, the characteristics of access data are allocated time slots for the broadband storage bus;
s3: determining access configuration information of the local memory based on the allocation time slot, and accessing the local memory based on the access configuration information to obtain access data;
in the step S3, determining access configuration information of the local memory based on the allocated time slot includes:
determining time slot allocation times required by a broadband storage bus when an access instruction is realized, determining first time slot configuration information based on the time slot allocation times, determining change configuration information based on access characteristics when data access corresponding to each time slot allocation is finished, and determining overall access configuration information based on the first time slot configuration information and the change configuration information;
acquiring time slot bandwidth characteristics and terminal characteristics of each time slot when each time slot is allocated, determining second time slot configuration information based on the time slot bandwidth characteristics and on the basis of first time slot configuration information, determining authorized configuration information based on the terminal characteristics, and determining local access configuration information based on the second time slot configuration information and the authorized configuration information;
based on the global access configuration information and the local access configuration information, final access configuration information is determined.
2. The method for accessing a local memory in a time-division multiplexing manner according to claim 1, wherein in S1, determining an access data storage address of the local memory corresponding to each access device terminal according to the access command includes:
acquiring the access requirement of each access equipment terminal from the access instruction;
and acquiring the access data characteristics of the access equipment terminal from the access requirement, and acquiring an access data storage address corresponding to the access data characteristics according to a preset data-address mapping table.
3. The method for accessing a time-division multiplexing local memory according to claim 1, wherein in S2, according to the device identifier of the access device terminal, the characteristics of the access data, the time slots are allocated to the broadband memory bus, comprising:
matching the equipment identifier of the access equipment terminal with the identifier in the equipment identifier library, and determining the access priority of the access equipment terminal according to the matching result;
determining the characteristics of the access data corresponding to the storage address according to the address characteristics of the access data storage address, and extracting the transmission time characteristics in the access data;
according to the access priority, sequencing the transmission time characteristics of each access equipment terminal to obtain a time characteristic sequence;
determining the length characteristics of a broadband storage bus, acquiring a first sequence time characteristic based on a time characteristic sequence, carrying out first matching division on the length characteristics, determining a time slot corresponding to the first time characteristic according to a division result, and setting a transmission identifier for the time slot based on access data;
acquiring the occupied length characteristics of the first time slot in the length characteristics to obtain the residual length characteristics, sequentially carrying out matching division on the residual length characteristics based on the time characteristics of the time characteristic sequence according to the sequence order until the residual length characteristics are completely matched with the time slots, and setting transmission identifications for the time slots based on access data;
and acquiring all time slots of the broadband storage bus, determining a data signal source of the time slots according to the transmission identification of the time slots, and realizing the time slot allocation of the broadband storage bus.
4. A method for accessing a time-division multiplexed local memory according to claim 3, further comprising, after determining the data signal source of the time slot:
judging whether the access data corresponding to the time feature sequence are all matched in the first time slot allocation;
if yes, completing the time slot allocation of the broadband storage bus;
otherwise, after the first time slot allocation is completed and the time slot allocation information is recorded, the time slot allocation of the broadband storage bus is cleared, and the unallocated access data is subjected to time slot allocation again on the broadband storage bus until the access data is completely allocated to the time slots.
5. The method for accessing a time-division multiplexing local memory according to claim 4, wherein the first matching division is performed on the length features based on the first sequence time features obtained from the time feature sequence, and the determining the time slot corresponding to the first time features according to the division result includes:
determining a time length based on the first sequence time feature, determining a target length feature corresponding to the first sequence time feature based on a time-length corresponding relation, and matching the target length feature in the whole broadband storage bus to realize first matching division of the length feature;
based on the length and position of the target length feature, corresponding time slots are set, and the lengths and positions corresponding to different time slots are different.
6. The method for accessing a time-division multiplexed local memory according to claim 1, wherein accessing the local memory based on the access configuration information to obtain the access data comprises:
distributing bus control rights for each access device terminal based on the access configuration information;
based on the access instruction, determining access data transmitted after each access equipment terminal acquires the bus control right;
and accessing the local memory by the access equipment terminal based on the bus control right and the transmitted access data, and receiving the access data.
7. The method for accessing a time-division multiplexing local memory according to claim 1, wherein in S2, after allocating a time slot to the broadband storage bus, further comprising: the method specifically comprises the following steps of:
acquiring a channel formed by the allocated current time slot from a broadband storage bus, and determining a standard channel state of the current time slot based on the priority of an access equipment terminal of the current time slot and transmission access data information;
detecting the channel state of the channel formed by the current time slot according to a preset evaluation index, determining the actual channel state, and judging whether the actual channel state meets the standard channel state requirement;
if yes, determining that the channel environment of the current time slot is normal;
otherwise, determining that the channel environment of the current time slot is abnormal, and carrying out first alarm reminding.
8. The method for accessing a time-division multiplexing local memory according to claim 7, further comprising, after determining that the channel environment of the current slot is normal:
acquiring a time slot starting point and a time slot ending point of a current time slot, judging whether the time slot starting point and the time slot ending point establish connection with a corresponding access equipment terminal or not, and determining whether the connection is correct or not;
if yes, determining that the connection of the current time slot is normal;
otherwise, determining that the connection of the current time slot is abnormal, and carrying out second alarm reminding.
9. The method for accessing a time-division multiplexing local memory according to claim 8, further comprising, after the connection of the current time slot is normal:
acquiring characteristics of access data corresponding to a current time slot, acquiring transmission data characteristics in the transmission process of the current time slot, and matching the characteristics of the access data corresponding to the current time slot with the transmission data characteristics to obtain a matching result;
obtaining the matching degree from the matching result, and judging whether the matching degree is larger than a first preset matching degree or not;
if yes, determining that the current time slot is normal; otherwise, judging whether the matching degree is larger than a second preset matching degree;
if yes, extracting the unmatched data characteristics in the characteristics of the access data corresponding to the current time slot and the transmission data characteristics, and determining the data parameter values of the unmatched data characteristics; otherwise, determining that the current time slot is abnormal, and carrying out a third alarm reminding;
after determining the data parameter values of the unmatched data features, judging the numerical value difference between the data parameter values of the feature corresponding to the access data and the transmission data feature of the current time slot under the same attribute, and judging whether the numerical value difference is smaller than a preset difference;
if yes, determining that the current time slot is normal;
otherwise, determining that the current time slot is abnormal, and carrying out a third alarm reminding.
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