RU2523935C2 - Centre access conflict resolution method and system implementing said method - Google Patents

Abstract

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer engineering. The method of resolving a conflict in accessing a conflict-free messaging device (CFMD), which employs a CFMD and numbered objects which transmit to and receive from the CFMD optical signals via a separate wireless link for each object at three possible frequencies, wherein the signal at the first frequency is pulsed and is used by the objects to determine the time of propagation of the signal from the object to the CFMD, the signal at the second frequency is pulsed, has one of four durations ν, ρ, σ, τ, linked by the relationship 3ν<σ<ρ<τ and is transmitted simultaneously only by one of the objects, the signal at the third frequency is constant, is transmitted by to the CFMD by the objects and is returned to said objects by the CFMD with temporary interruption of the reception by the CFMD of the signal at the second frequency from the object, wherein the CFMD counts the time interrupted and resuming upon the arrival of the signal at the second frequency, or upon achieving a predetermined time value.

EFFECT: high speed of resolving access conflicts.

9 cl, 3 dwg

Description

The invention relates to the field of computer engineering, in particular to methods and systems for resolving access conflicts, and can be used to create multiprocessor and multi-machine computing systems with devices connected by optical communication means to eliminate conflicts arising from the simultaneous use of several system devices to one or several special devices - centers that provide conflict-free messaging between system devices. In particular, at least one device of the system can be connected to a center corresponding only to it, which ensures the elimination of an access conflict while several devices are accessing this device.

A known method of resolving access conflicts is given in adopted for the prototype patent of the Russian Federation 2437146 "Device for resolving access conflicts". This patent proposes a device that eliminates an access conflict with the use of optical means, which uses a decentralized priority control method to resolve the conflict, which allows, by bit-by-bit transmission of the priority codes of the devices involved in the conflict, to select the only device with the highest or lowest priority code and only grant it the right to transfer signal alerts. A device that implements this method is available for each device in the system, at the entrance of which an access conflict is possible. The device comprises a retroreflector unit equipped with a light modulator, a photodetector, a beam splitter and a control unit that switches the modulator state. The use of a retroreflector has significantly reduced energy consumption in the device proposed in the patent of the Russian Federation 2437146.

The disadvantage of this method is that it is quite lengthy, as it allows sources of conflict to transmit the next bit of priority code to the receiver retroreflector only after receiving the previous discharge returned by the retroreflector. The conflict resolution process needs to be repeated for each source of conflict.

The objectives of the invention. The first task is to propose a method using optical means that increases the speed of resolving access conflicts compared to the speed achieved in the prototype.

The second task is to offer a system that implements the method specified in the first task.

The first task is solved due to the fact that the proposed method performs the interaction of devices (hereinafter "objects") with a selected object - the center by exchanging optical signals between them. At the same time, the center initiates the resolution of emerging conflicts of access to the center, and the conflict is not resolved alternately, as in the prototype, but simultaneously for all conflicting objects of the system.

The technical result of the method is achieved by the fact that the method of eliminating the conflict of access to the center - the device providing conflict-free messaging (UBOS) uses UBOS, and numbered objects sending UBOS and receiving optical signals from it via a separate wireless channel for each object at three possible frequencies, moreover, the signal of the first frequency is pulsed, used by objects to determine the propagation time of the signal from the object to OSB, the signal of the second frequency is pulsed in one of four ν, ρ, σ, τ, connected by the relation 3ν <σ <ρ <τ, sent simultaneously by only one of the objects, the third-frequency signal is constant, sent by the UBOS objects and returned by the UBOS with interruption for the time the UBOS receives the second frequency signal from the object, at the same time, the UBOS carries out a time count, interrupted and starting anew when the second frequency signal arrives, or when a predetermined time count is reached, and in the latter case, the UBOS interrupts the third frequency signal returned to the objects for a time τ, and in response to this, p interruption or the same interruption, as well as interruption for a time ρ initiated by one of the objects, each object sends a signal of the second frequency with a duration of ν with a delay that excludes superposition of signals in the OSBM, and one of the objects receives interrupted signals of the third frequency created by the OSB from the OSBM from the sequence of signals of the second frequency received by him from all objects, he sends a UBOS signal of a second frequency of duration σ, and all objects that received a signal of a third frequency interrupted for a time σ from UBOS send UBOS their information Discount the same size message signals of a second frequency ν duration without overlapping in UBOS and receive from UBOS this common message of all objects.

One of the objects sends the OSBO signal of the second frequency of duration σ, and all objects, having detected the interruption of the OSBO signal of the third frequency by time σ, send the OSBO time-shifted auxiliary messages indicating the size of the future information message, its priority and the number of the message source, they receive everything from the OSBE auxiliary messages, after which one of the objects sends an OSD signal of the second frequency of duration σ, and all objects, having detected an interruption of the OSD signal of the third frequency by time σ, send the OSD shifted during Submit your informational messages of the size indicated in the auxiliary message. Signals sent by objects of duration σ, ρ, and τ are replaced by binary codes representing these signals, different from codes used in object messages. Upon receipt of permission from UBOS to transmit signals, objects transmit their message, preferably starting with the serial number or name of the signal source, and if the object receives the UBOS message returned to it undistorted, then the message transmission is considered valid, otherwise the objects continue using the main method or its modifications.

At least one object has been allocated UBOS, connected with it by electric lines transmitting from UBOS to the object electrical signals received by UBOS from optical signals, while the object sends electric signals to UBOS that are converted by UBOS into optical signals, while the object also prohibits the sending of optical illumination by optical signals of the third frequency of duration τ for a time sufficient for the object to complete communication with the objects that turned to it.

At the beginning of the arrival of the third frequency signal in the OSBO or upon the termination of the arrival of the second frequency signal in the OSBO during the time interval T _k (τ <T _k <T _m ), the OSBR interrupts the third frequency signal returned to the objects for the time τ and after that starts the interval T _m .

The proposed method for resolving access conflicts implies the presence of the following features at the facilities and the center.

Each object O _i can send signals at the three frequencies ƒ ₁ , ƒ ₂ , ƒ ₃ to the center via an individual wireless optical channel F _i for the object. The signals sent to the center are denoted as ƒ ₁₁ , ƒ ₂₁ , ƒ ₃₁ . The center returns optical signals corresponding to the signals sent to the center by the objects through the channel F _i . Denote them as - ƒ ₁₂ , ƒ ₂₂ , ƒ ₃₂ .

Signals ƒ ₁₁ and ƒ _{21 are} pulse, taking one of two values: 1 and 0. If these signals have a value of 1, then the object sends a corresponding impulse to the center, at a value of 0, the impulse is not sent. Signals ƒ _{31 are} continuous, have a value of 1. The center receives each signal ƒ ₂₁ and, if its value is 1, simultaneously interrupts continuous signals на ₃₂ , which are returned to all objects for the duration of signal ƒ ₂₁ . We call this interruption a pulse signal ƒ ₃₂ . As a result, all objects will receive a value of 1 signal ƒ ₂₁ .

Pulse signals ƒ ₂₁ and ƒ ₃₂ can have a duration of ν, ρ, σ or τ. In this case, the condition 3ν <σ <ρ <τ is fulfilled. If necessary, we will accompany the signals by indicating their duration, for example, τƒ ₃₂ , ρƒ ₂₁ . The duration of the pulse signal ƒ _{11 is} not regulated.

All objects are assumed to be ordered.

The following is a basic way to resolve an access conflict and modify it.

The main way to resolve an access conflict is as follows.

1. Each object - the source of the application for resolving an access conflict sends a pulse signal ƒ _{11 to the} center. The center returns this signal to each source of the request in the form of signal ƒ ₁₂ . Object number i measures the time interval of the signal from the object to the center T _i . All objects know T _max > T _i , i = 1, ..., n, and each source calculates a delay equal to t _i = T _max -T _i .

If the object receives a signal from the center synchronizing the sending of the signal to the center, and the object delays the transmission of its signal after the synchronization signal arrives at t _i , this will ensure the simultaneous arrival of signals sent by all objects to the center. Using their serial number, objects can introduce additional delays that ensure that messages arrive in the center without the specified overlay. This makes it possible to transmit messages at a speed independent of the location of the objects.

2. The center at an arbitrary moment begins the countdown of time T. Upon reaching the specified critical time interval T = T _{m, the} center sends a signal τƒ _{32 to the} objects.

The value of T _m is chosen not less than twice the time interval for the signal to travel from the center to the object farthest from it and, in addition, the time interval nν, where n is the maximum possible number of objects that may require access to the center.

If the center receives a pulse signal ƒ _{21 of} any duration during the countdown of the interval T, then it starts a new countdown T, starting from the value 0.

3. Having received the signal τƒ ₃₂ , the object to which it is necessary to transfer the application to the center sends a pulse νƒ ₂₁ to the center with a delay t _i + kν, where k is the serial number of the object. By sending these signals, all n objects create a single message S1 of duration nν. containing νƒ ₂₁ momenta in an amount equal to the number of objects. Properties S1 follow from the features t _i indicated in clause 1.

When any pulse signal is received from objects, the center simultaneously with receiving each ν message S1 relays it to all objects, interrupting signals сигналы ₃₂ (forming pulses νƒ ₃₂ ) in accordance with the received pulses νƒ ₂₁ . This creates message S2.

Note to paragraph 3: the number k can be either a serial number in the aggregate of all objects, and only those objects that, by prior agreement, are allowed to interact with the center.

4. Objects take into account only signals νƒ ₃₂ in S2 and create a new, in particular reduced, numbering of their applications. This use of signals ƒ ₂₁ , ƒ ₃₁ and ƒ ₃₂ allows you not to remember S2 before sending it to objects.

5. One of the objects, by preliminary agreement between them (for example, sending the signal νƒ ₂₁ to the center with the maximum delay) sends the signal σƒ ₂₁ to the center. Having received σƒ ₂₁ , the center sends an impulse σƒ _{32 to the} objects.

6. In response to the impulse σƒ _{32, the} signals νƒ ₂₁ send to the center their messages S _i , of the same duration, with a time shift corresponding to the order number of the application. The center relays these messages to objects, sending them signals νƒ ₃₂ . As a result, the center will receive a general message S3 consisting of these applications, the duration of which does not depend on the location of objects. Message S3 will receive all objects.

Ways to encode messages. To facilitate synchronization of messages to objects, it is advisable to encode all messages except S1 as follows. Any bit of the message is transmitted over two time intervals, each of duration ν. If the discharge value is 1, then first the signal νƒ ₂₁ is transmitted in the time interval ν, then it is absent in the next interval ν. For discharge 0, the order of the sequence changes - at the beginning there is no signal νƒ ₂₁ .

The synchronization of S1 is simplified by allocating for each bit in S1 three intervals of duration ν: two intervals are used, as indicated above, i.e. there is no signal in one of two intervals of duration ν, the third interval is synchronizing, and there is a frequency ƒ ₂ for any bit value in it.

Modifications to the primary way to resolve an access conflict

A. The main method ensures that objects transmit S3 messages of equal duration. Here are its changes and additions that allow objects to transmit messages of various durations.

- Clause 4 of the main method changes to the next clause 4a. Objects take into account only signals νƒ ₃₂ in S2 and create a new, possibly reduced numbering of their applications. Moreover, each object generates a message C _i , in which the object indicates the size of the future message in bits, the priority of the message and the number of the message source. This use of signals ƒ ₂₁ , ƒ ₃₁ and ƒ ₃₂ allows you not to remember S2 before sending it to objects. The exchange of messages should be carried out taking into account the priorities, and if they coincide, the number of the application source will be taken into account additionally.

- Clause 6 of the main method is replaced by the following clause 6a. In response to the momentum σƒ _{32, the} objects send νƒ ₂₁ signals to the center with their messages C _{i of the} same duration, with a time shift corresponding to the order number of the application. The center relays these messages to objects, sending them signals νƒ ₃₂ . In message C _{i, the} object indicates the size of the future message S _i in bits and its source.

New paragraphs 7 and 8 are added.

- 7. As in paragraph 5 of the main method, one of the objects sends a signal σƒ ₂₁ to the center, which the center returns to all objects in the form σƒ ₃₂ .

- 8. In response to the pulse σƒ objects ₃₂ send center using νƒ _21, their messages S _i, with the time shift corresponding to the ordinal number of the application and takes into account the indicated sizes in C _i S _i messages. As a result, the center will receive a general message S3 consisting of these applications, the duration of which does not depend on the location of objects.

B. In the basic and modified methods, signals of duration ν and σ send objects, but a signal of duration τ sends the center, and only the center can start a new messaging session. Soluble objects also create a signal of duration τ, which will allow them to form a long session of channel ownership. To do this, the messages exchanged between objects contain information about which of the objects should send a signal of duration τ. In particular, such an object may be the object that sent the last message in the session. In its message, the object sends a signal of duration τ, which allows you to start a new messaging session without the permission of the center. The duration of such a process is not limited, and only when the signals from the objects cease to come in, the center intervenes, which, having detected that the interval T reaches the value of T _m , allows all objects to use the channel for a new session. In this case, the arrival of τƒ ₂₁ from the facility until the moment τƒ _{32 is} issued by the center must be ensured.

C. Suppose that you want to allow messaging only to the group of objects that was allowed to exchange messages by signal τ. For this, a pulse signal ρƒ _{21 is used} . Since σ <ρ <τ is valid for the signal durations, the signal ρƒ _{21 will} allow only objects from the indicated group to start a new exchange session.

Thus, there is a hierarchy of signals: a signal of duration τ allows any objects to start a new messaging session; a signal of duration ρ allows only objects from the specified group to start a new session; a signal of duration σ controls the internal organization of the exchange session in accordance with paragraphs 5, 6 of the main method and paragraphs 5-8 of its modification A.

D. Instead of using signals of durations σ, ρ, and τ, objects can use service codes other than codes used by objects in ordinary messages. As a result, objects will exchange only signals of duration ν.

E. Let the individual center be provided to a specific object and connected with it by electric lines. In this case, the method of resolving the conflict and its modification allows you to resolve the conflict of access to the specified object by the following actions. The center must transmit electrical signals to the object, creating them from the optical signals νƒ ₂₁ arriving at the center. In this case, an object for transmitting its own messages to objects turning to it must send electric signals of duration ν to the center belonging to the object, which the center must convert to optical signals νƒ ₃₂ . The object should also prohibit the center from sending optical signals τƒ ₃₂ for the time necessary for the object to complete its communication session with the objects that turned to it.

F. It is desirable that the center can interrupt a session driven by objects. To do this, the center must use its modulator to prohibit modulation of signals ƒ ₃₂ for a given time interval. In response, the objects will terminate the session and wait for the signal τƒ ₃₂ to be received from the center.

If the center is allocated to a specific object and connected with it by electric lines (Section E), then the actions indicated in Section F do not require complication of the center's equipment, since can be performed by an object.

G. The main way to resolve the access conflict and its modifications work under the assumption that the conflict exists and the method begins to resolve it. However, object interactions can be pre-planned to reduce conflicts or eliminate them completely. In this case, it is advisable to supplement the method with the following actions. Upon receipt of a signal from the center that allows the transmission of signals to begin, the objects transmit their message, which is preferably to begin with the transmission of the serial number or name of the signal source. If the object receives the message returned to it by the undistorted center, then the message transmission is considered completed, otherwise the objects continue the actions using the main method or its modifications.

H. In the main method and its modifications, where the signal τƒ ₃₂ forms the center, the sending of this signal is accelerated during the following actions of the center. At the beginning of arrival at signal center ƒ ₃₁ or at the termination of arrival at signal center ƒ ₂₁ during the time interval T _k (τ <T _k <T _m ), the center sends the signal τƒ _{32 to} objects and only after that starts the interval T _m .

I. In the main method and its modifications, it is possible to replace the serial transmission of message signals by the object m by parallel transmission of these signals, adding to the transmission of signals νƒ ₂₁ signals νƒ ₄₁ , ..., νƒ _m-1,1 , respectively, frequencies ƒ ₄ , ..., ƒ _{m- 1} , which the center relays to objects in the same way as the signal νƒ ₂₁ . Similarly, it transmits its messages and an object electrically connected to its own center.

The second task is solved due to the fact that the proposed system contains a technical device - center (UBOS), acting according to the method described above and connected by optical channels to communication devices with the center, which are contained in each object associated with the center. There can be more than one center. The center can also be allocated to a specific object and connected with it by electric lines.

The technical result of the device is achieved by the fact that the system for eliminating the conflict of access to the DRM contains a DRAM and a group of objects, each of which is connected to the DRAM by a separate wireless optical channel and contains a communication device with DRAM, the DRAM contains a retroreflector for returning optical signals to objects, controlled by an electric signal modulator optical signals, allowing or prohibiting the return of a third frequency signal to objects, the element is a logical OR, the output of which is connected to a modulator, p electrical signals, the output of which is connected to the counter input, the output of which is connected to the second input of the logical OR element, a photodetector of light passing through the modulator and retroreflector, the output of which is connected to the second input of the logical OR element and to the control input of the counter, which sets the counter to zero and starting a new account when a signal from the oscillator appears at the input, and the communication device with OSB contains a node for transmitting and receiving optical signals of three frequencies and a timer that turns on and off yuchaemy respectively transmit and receive communication apparatus UBOS first frequency signal.

At least one object has been allocated a DRAM connected with it by three electric lines, the first line is designed to transmit the DRM to the object of electrical signals created from optical signals received by the DRM, while the second line is designed to transmit electrical signals from the object to the DRAM, converted by the UBOS modulator into optical signals, while the third line is designed to transmit an electric signal to the UBOS object that prohibits the UBOS to interrupt optical signals of the third frequency for a time, d residual to an object to complete its communication session with objects that turned to it.

The output of the photodetector, creating a pulsed electrical signal upon receipt of an optical signal of the third frequency, is connected to the control input of the counter, which sets the counter to zero.

The technical nature and principle of operation of the proposed system for resolving access conflicts is illustrated by the drawings.

Figure 1. Access Conflict Resolution System.

Figure 2. Block 1 of the center.

Figure 3. Block 2 of the center.

The proposed system is shown in FIG. 1. Here is shown a group of objects O ₁ , ..., O _n , which through their communication devices with the center direct light to block 1 (1) of the center (3), which also contains block 2 (2), and receive light from block 1 The exchange of light signals occurs through the above wireless channels F ₁ , ..., F _n . Each object O _i exchanges signals with the center through the channel F _i at the three frequencies ƒ ₁ , ƒ ₂ , ƒ ₃ indicated in the method in the above manner using the above-mentioned communication device of the center and the object.

There can be several centers for resolving access conflicts, and each of them will interact with the corresponding group of objects. Since very often intense messaging occurs within small groups of objects, this separation can reduce the number of conflicts.

In addition, as indicated in Modification E of the conflict resolution method, at least one object may be associated with a center corresponding only to it. The object is connected to its own center by three electric lines, the first line is designed to transmit the center of the object to the electrical signals generated by the center from the optical signals νƒ ₂₁ arriving at the center; the second line is intended for transmission from the object to the center of electrical signals of duration ν, converted by the center into optical signals νƒ ₃₂ ; the third line is designed to prevent the object from sending optical signals τƒ ₃₂ to the center for a time sufficient for the object to complete its communication session with the object that turned to it.

The center contains two blocks. The first center block is shown in FIG. 2 and contains a retroreflector, a controlled modulator of optical signals, and a photodetector of optical signals supplied to the unit from an external source. This unit must satisfy the following requirements.

1. The unit must return the optical signals in the direction opposite to the direction of their arrival in the retroreflector.

2. The optical signal modulator under the control of electric signals returns or does not return to the objects the signals ƒ ₃₁ coming into the block. The remaining signals pass freely through the modulator.

3. Part of the energy of the incoming optical signal enters the photodetector, which upon receipt of a frequency signal ƒ ₂ forms an electrical signal. To implement modification H of the method, the photodetector must emit a pulsed electrical signal when signal ƒ ₃₁ appears.

These requirements are feasible with various technical implementations of the retroreflector, for example when using a reflector, but here the device from the patent US 6,154,299 (fig.6), developed in further articles of the authors of this patent, is taken as a basis. The device uses a cat-eye retroreflector. It has a high speed and is easier to implement than the second possible type of retroreflector - reflector.

Presented in FIG. 2, the first block of the center meets the specified requirements. In this block, the light from the light sources of external devices 4, containing light sources and receivers, enters the lens 5, which passes light through the modulator 6 to the reflecting mirror 7. The reflected light again passes through the modulator, the lens and returns to the receiver of the device 4. The modulator, as indicated in the method, it switches from a state conducting light of frequency ƒ ₃₂ to a non-conducting state by a control electric signal coming from the output of amplifier 8, which generates it from an external signal coming through line 9.

Mirror 7 is partially transparent for all light frequencies used by the source. The light that passed through the mirror receives a photodetector 10, which responds to a frequency signal ƒ ₂ and converts it into an electrical signal that is output from the unit via line 11. To implement modification H, the photodetector must also respond to the appearance of a frequency signal ƒ ₃ , forming a pulsed electrical signal, which issued from the block on line 12.

A second center block is shown in FIG. 3 and contains three elements: a generator of continuous electrical signals 13, a counter of signals 14 received from the generator 13, and element 15 is a logical OR. The counter 14 and the generator 13 together form a timer.

Any pulse signal arriving from outside through line 16 or 17 to element 15 is supplied from its output to counter 14 and resets the counter to zero. When the counter reaches the set value T _{m, the} counter issues a pulse signal to line 18 and resets its readings to zero.

Line 11 of block 1 is connected to line 16 of block 2, line 12 of block 1 is connected to line 20 of block 2, line 9 of block 1 is connected to line 18 of block 2. The above blocks 1 and 2 and their interconnection allow to realize all the actions of the center, required from him by the proposed method of interaction of objects with the center to eliminate access conflict and its modifications.

Since block 2 does not require high accuracy in measuring the countdown of the time interval T _m , the digital block 2 can be replaced by any analog device that measures the time interval T _m and, when it is reached, provides a pulse signal to line 18 and starts a new countdown of the interval T.

The following electric lines are used to interact with an object with a center allocated only to it. To transmit electrical signals generated by the center from optical signals νƒ ₂₁ to the object, the center unit 1 uses line 16. To control the transmission of optical signals νƒ _{32 by the} center, an electric line 17 is used connecting the center unit 2 with the object. To stop the counter 14, the object uses an electric line 19.

In the technical implementation of modification H of the main method, the photodetector of the first unit must respond additionally to a frequency signal ƒ ₃ and, when it appears, send a pulsed electrical signal to the counter via line 12 connected to line 20 of block 2. The counter when this signal arrives, as well as in the absence of a signal on line 16, during a time interval T _k (τ <T _k <T _m ), a signal of duration τ is output to node 15, and only then does the countdown of the time interval T _m begin.

A communication device with the center is an intermediary between the center and the object and turns the electrical signals of the object into optical signals directed to the center of frequencies частот ₁ , ƒ ₂ , ƒ ₃ . The device also converts the optical signals of frequencies ƒ ₁ , ƒ ₂ , ƒ ₃ sent from the center into the corresponding electrical signals sent to the object.

Preferably, the communication device with the center, rather than the object, contains a timer that starts when the frequency signal частоты _{1 is} sent to the center and stops when the center returns the signal with a retroreflector. The obtained timer reading is used by the object to determine the time interval of the signal from the object to the center.

The communication devices should be oriented so that the signals sent to the center arrive at the center unit 1, and the signals returned by the center are received by the communication device. Three methods are applicable for this:

- the communication device is oriented so that the signals arrive at the center unit 1;

- between the communication device and the center is a deflector, which rejects the signals of the communication device in the direction of the center;

- the communication device sends light signals in a wide opening angle, which ensures the arrival of signals from the communication device to the center unit 1 without additional orientation of the communication device.

The presented description and drawings are presented for illustration. Without deviating from the essence of the invention, which is limited only by the scope of the attached claims, various changes and modifications can be made.

Claims (9)

1. A method for resolving a conflict of access to a device providing conflict-free messaging (UBOS), characterized in that they use UBOS and numbered objects sending UBOS and receiving optical signals from it on a separate wireless channel for each object at three possible frequencies, the signal being the first pulse frequency, used by objects to determine the propagation time of the signal from the object to the DRAM, the second frequency signal is pulsed from one of the four durations ν, ρ, σ, τ, related 3ν <σ <ρ <τ, sent simultaneously by only one of the objects, the third-frequency signal is constant, sent by the UBOS objects and returned by the UBOS with interruption for the time the UBOS receives the second frequency signal from the object, while the UBOS counts the time, interrupted and starting again when a signal of the second frequency arrives, or when a predetermined time count is reached, and in the latter case, the OSBR interrupts the signal of the third frequency returned to the objects for a time τ, and in response to this interrupt or the same interrupt, as well as a time interruption ρ initiated by one of the objects, each object sends a signal of the second frequency with a duration of ν with a delay that excludes superposition of signals in the OSBM, and one of the objects receives interrupt signals of the third frequency from the OSBG created by the OSB from the received from all objects a sequence of signals of the second frequency, sends an OSBF signal of a second frequency of duration σ, and all objects that received a signal of a third frequency interrupted by time σ from the OSBF send a message of the same p zmera signals of a second frequency ν duration without overlapping in UBOS and receive from UBOS this common message of all objects. 2. The method according to claim 1, characterized in that one of the objects sends an OSD signal of a second frequency of duration σ, and all objects, having detected an interruption of an OSD signal of a third frequency by time σ, send an OSD auxiliary time-shifted auxiliary messages indicating the size of the future information message , its priority and the number of the message source, receive from the OSBA all auxiliary messages, after which one of the objects sends the OSBO signal of the second frequency of duration σ, and all objects, having detected the interruption of the OSBO signal of the third frequency to Removing σ, they send UBOS time-shifted informational messages of the size indicated in the auxiliary message. 3. The method according to claim 1 or 2, characterized in that the signals sent by the objects of duration σ, ρ, τ are replaced by binary codes representing these signals, different from the codes used in the messages of the objects. 4. The method according to claim 1 or 2, characterized in that when receiving permission from the OSB to transmit signals, the objects transmit their message, preferably starting with the serial number or name of the signal source, while if the object receives the message returned to it, the UBOS is undistorted, then the transmission of the message is considered completed, otherwise the objects continue the action using the main method or its modifications. 5. The method according to claim 1 or 2, characterized in that at least one object is allocated OSBO connected with it by electric lines transmitting from the OSBB to the object electric signals received by the OSB from optical signals, while the object is for transmitting its own sends messages to UBOS electrical signals converted by UBOS into optical signals, while the object also prohibits the sending of UBOS optical signals of the third frequency of duration τ for a time sufficient for the object to complete communication with the objects that turned to it. 6. The method according to claim 1 or 2, characterized in that at the beginning of the arrival of the third frequency signal in the OSBO or upon the termination of the arrival of the second frequency signal in the OSBO during the time interval T _k (τ <T _k <T _m ), the OSB interrupts the return to the objects a signal of the third frequency for a time τ and after that begins the countdown of the interval T _m . 7. A system for resolving a conflict of access to DRAM, characterized in that it contains DRAM and a group of objects, each of which is connected to DRAM with a separate wireless optical channel and contains a communication device with DRAM, moreover DRAM contains a retroreflector for returning optical signals to objects, controlled by an electrical signal modulator optical signals, allowing or prohibiting the return of a third frequency signal to objects, the element is a logical OR, the output of which is connected to a modulator, an oscillator of electrical signals, the output of which is connected to the counter input, the output of which is connected to the second input of the logical OR element, a photodetector of light passing through the modulator and retroreflector, the output of which is connected to the second input of the logical OR element and to the control input of the counter, which sets the counter to zero and starts a new count when a signal from the oscillator appears at the input, and the communication device with OSB contains a node for transmitting and receiving optical signals of three frequencies and a timer that turns on and off respectively When transmitting and receiving a device for communication with a DRAM signal of the first frequency. 8. The system according to claim 7, in which at least one object is allocated OSBM associated with it by three electric lines, while the first line is designed to transmit UBOS object electrical signals created from optical signals coming into the OSBM, while the second the line is designed to transmit electrical signals from an object in the UBOS that are converted by the UBOS modulator into optical signals, while the third line is used to transmit an electric signal to the UBOS modulator that prohibits interruption of the UBOS optical signals retey frequency for a time sufficient to complete the object of their communication session with the draw thereto objects. 9. The system of claim 8, in which the output of the photodetector generating a pulsed electrical signal upon receipt of an optical signal of the third frequency is connected to the control input of the counter, which sets the counter to zero.

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