RU2674937C2 - Universal method of exchange of navigation-temporary information in samples of military technique of ground forces - Google Patents

Abstract

FIELD: military equipment.SUBSTANCE: invention relates to military equipment. For this, the first stage determines the main groups of equipment and devices that require the exchange of navigational and temporal information: automated workstations of the automated control system of troops, on-board navigation and measurement systems, devices and synchronization systems of time scales and problems solved by them, at the second stage directions of unification of the method of exchange and unoccupied components, at the third stage, the frame structure is formed to obtain navigational data from the inertial navigation system, necessary for the satellite navigation equipment, and the necessary set of personnel is regulated, at the fourth stage a detailed frame-by-frame development is performed.EFFECT: technical result consists in the formation of a universal method for the exchange of navigational and temporal information in samples of military equipment of the Ground Forces, providing the interface of the onboard computer controller of the military equipment object with the navigation equipment and obtaining from it the navigation-time information in the required representation.1 cl, 6 tbl

Description

The invention relates to military equipment, and in particular to methods of functioning of objects of military equipment equipped with navigation equipment, within the framework of an automated command and control system (ASUV), and can be used to solve tasks of topographic and geodetic training of combat operations of the Ground Forces.

There is a method of information interaction of autonomous topographic and navigation equipment and on-board computers, (see patent RU No. 2510585 C2, H04L 29/00, 03/27/2014), adopted as a prototype. The method of information interaction of autonomous topographic and navigation equipment and an onboard computer includes the conversion, transmission, reception of measuring and control signals over wired and wireless communication lines according to the information interaction protocol. The information interaction protocol ensures the operation of autonomous topographic reference and navigation equipment (inertial navigation system) in the following modes: “WAITING”, “PREPARATION FOR WORK”, “EXHIBITION”, “NAVIGATION”, “TEST CONTROL”, for which information is transmitted between the onboard computer and autonomous topographic and navigation equipment is carried out by a binary digital serial code in asynchronous mode via a serial line of EIA RS - 232C standard in accordance with a 3-wire version and a pulse periodic a timestamp signal issued from an onboard computer to an autonomous topographic reference and navigation equipment via a 2-wire communication line. Information interaction is carried out in accordance with the following lists of parameters, for each of which a corresponding data type is determined: reception of topographic data and navigation data from the on-board computer number of the data packet, object latitude, object longitude, object elevation, northern component of linear velocity object, eastern component of the linear velocity of the object, vertical component of the linear velocity of the object, the true course of the object, roll of the object, pitch of the object, Moscow time of day, geometric parameter, mean square error of determining coordinates, altitude barometric absolute, mechanical linear velocity of an object, Doppler linear velocity of an object, Moscow time of day at the moment of measuring speed, word of confidence signs, command word, checksum, data output from autonomous topographic reference equipment and navigation to the on-board computer number of the data packet, object latitude, object longitude, object elevation, northern component of linear speed and the object, the eastern component of the linear speed of the object, the vertical component of the linear speed of the object, the true course of the object, roll of the object, pitch of the object, Moscow time of day at the time of measurement of the issued parameters, distance traveled, status word, mode word, checksum.

The disadvantages of the method taken as a prototype are:

- insufficient level of unification of the transport protocol of information-time interaction for the construction of navigation and information systems of NE objects;

- insufficient hardware (electrical and structural) level of interface unification;

- insufficient unification of the information-logical level;

- a long time for processing information and, accordingly, the entire cycle of combat control.

The present invention solves the problem of increasing the efficiency of using automated navigation and information systems of NE objects.

The technical result obtained by the implementation of the invention consists in the formation of a universal method for exchanging navigational and temporal information in samples of military equipment of the Ground Forces, which provides a pairing (structural, electrical and logical) of the on-board calculator of the object of military equipment with navigational equipment and obtains navigational-temporal information from it information in the required representation.

The specified technical result is achieved by the fact that in the proposed universal method for exchanging navigation and time information in samples of military equipment of the Ground Forces, which includes the conversion, transmission, reception of measuring and control signals according to the protocol of information interaction, which provides the operation of autonomous topographic information and navigation equipment in several modes , in accordance with the lists of parameters, for each of which the corresponding data type is defined: receiving inertial navigation The data system from the on-board computer number of the data packet and navigation parameters, the output of data from the inertial navigation system to the on-board computer number of the data packet and navigation parameters, new is that at the first stage the main groups of equipment and devices that require the exchange of navigation time information: automated workstations of the automated command and control system, airborne navigation and measuring systems, devices and systems for synchronizing time scales and solved by them Good luck, at the second stage, the directions of unification of the exchange method and unification-free components are determined, at the third stage, a frame structure is formed to receive navigation data from the inertial navigation system necessary for satellite navigation equipment, and the necessary set of frames is regulated, at the fourth stage, detailed frame-by-frame development is performed : frame 1 - “ANN navigation”, in which the current measurements from the inertial navigation system are located, located in the fields, each of which corresponds to one parameter, auxiliary information, timing of current measurements relative to the hardware timestamp, frame 2 - “ANN descriptor”, in which the serial number of the equipment, the number of fields involved in the “ANN navigation” frame and descriptors of these fields consisting of the field identifier are transmitted and service information describing the navigation parameter, frame 3 - “Digitization of MV”, in which the data of the initial time and coordinate reference along with the almanac are transmitted to the satellite navigation equipment Space Navigation Systems, frame 4 - “NK Request”, which transmits requests for necessary messages from the navigation system containing the identification number of the requested frame, as well as the word of auxiliary flags.

The determination at the first stage of the main groups of equipment and devices requiring the exchange of navigational and temporal information and the tasks they solve allows you to:

- determine the objects of information interfacing in automated time-information complexes;

- proceed with the development of a protocol that provides constructive, electrical, and logical pairing of the object computer with navigation equipment.

The determination at the second stage of the directions of unification of the exchange method and components free from unification allows:

- identify priority areas for unification: the transport part, the logic of personnel formation, types of personnel, the type of presentation of information, the correspondence of personnel to consumer types;

- identify components that are not subject to unification.

The formation at the third stage of the frame structure for receiving navigation data from the inertial navigation system necessary for satellite navigation equipment, and the regulation of the necessary set of frames allows you to:

- introduce a hardware time stamp, identification number, its size into the frame;

- form the composition of inertial data.

The implementation at the fourth stage of detailed frame-by-frame development allows:

- systematize information flows according to their purpose;

- determine the frequency and direction of transmission.

Inclusion in frame set 1 - “ANN navigation” allows:

- transmit current measurement data from an inertial navigation device;

- transmit the timing of current measurements;

- determine the rate of transmission.

Inclusion in frame set frame 2 - "ANN descriptor" allows you to:

- disclose the content of the transmitted information;

- transmit quantitative information.

Inclusion in frame set 3 - “Digitization of MV” allows:

- to carry out the initial temporary binding of satellite navigation equipment;

- transmit almanacs of space navigation systems.

Inclusion in frame set 4 - “Request for Tax Code” allows you to:

- fulfill the request for the necessary message;

- pass the word auxiliary flags.

Technical solutions with features distinguishing the claimed solution from the prototype are not known and do not follow explicitly from the prior art. This suggests that the claimed solution is new and has an inventive step.

The method of exchanging navigational and temporal information in samples of military equipment of the Ground Forces is as follows.

This method of exchanging navigational-temporal information is aimed at solving the problem of creating a unified protocol for exchanging navigational-temporal information (NII), which is necessary for the effective construction of automated navigational-information systems of navigational aids using navigation equipment of various manufacturers.

The main groups of equipment and devices requiring the exchange of navigation information:

1. Automated workstations (AWS) of systems of an automated command and control system that solve tasks: determining forces and assets on the field, delivering corrective information and other special information, and organizing an inverse differential mode.

2. On-board navigation systems that solve problems: integrating navigation information from sources based on various physical principles, reducing the initialization time of the consumer part of satellite navigation equipment (ASN), and mutual monitoring of operability.

3. Devices and systems for synchronizing time scales.

Moreover, in the method (protocol) it is necessary to unify: the transport part, the logic and priorities of the formation of frames, types of control and data frames, the type of information presentation, the correspondence of frames to consumer types, interface type.

Whereas they remain free from unification (depending on the type of equipment): the degree (completeness) of the presentation of navigation information in a given frame, the ability (ability) to use external data, the ability to form only a certain part of frame types, ways to use external data - for example, corrective information. In this case, the method provides constructive, electrical and logical coupling of the on-board computer of an object of military equipment with navigation equipment of any type and obtaining from it the necessary set of NII in the required representation. The resulting data set may not exhaust all the capabilities of the equipment, which may be wider. On the other hand, if the necessary parameters for the functioning of the information complex with this equipment are not formed (or are formed in a non-standard representation), the pair provides for the rapid identification of this circumstance with the formation of a list of missing parameters.

To improve the accuracy and noise immunity characteristics of the receivers of signals from space navigation systems, as well as to reduce the search time and capture satellite signals, it is necessary to transmit data from an inertial navigation system (ANN) to it.

The structure of messages (frames) for receiving navigation data from the ANN required by the ASN is determined as follows. The main reference points are as follows:

- the exchange method involves the presence of a common hardware time stamp (MB) for time synchronization of inertial and satellite observations;

- ANN is part of the navigation complex (NK), in fact, data is exchanged with this NK;

- the frame has a header, which contains the identification number of the frame and its size in bytes;

- the frame contains a checksum calculated on all other bytes of the frame;

- the versatility of the method implies the possibility of forming a different composition of inertial data, therefore it is impossible to enter a clear message structure with navigation data from the inertial subsystem, but you can enter the message "ANN descriptor".

The set of frames for information support of ASN from ANN is given in table 1.

Frame 1 - "ANN Navigation"

In this frame, the current measurements from the ANN, as well as auxiliary information, for example, data from the height determination system, are transmitted. The frame also transmits the temporal reference of the current measurements relative to the hardware MB. Inertial data is transmitted in the fields. Each field corresponds to any one ANS parameter, for example, the angle of heel. A list of all valid fields is given in table 3. In each specific implementation of the method, only a certain set of fields is used. The set and order of transmission of the used fields is defined in the frame "ANN descriptor. The frame structure of the "ANN navigation" is shown in table 2.

Table 3 lists the possible fields of inertial data that correspond to ANN parameters. The designations X, Y, Z are introduced to distinguish the base axes. The data binding to the coordinate system is embedded in the frame "ANN descriptor".

The table shows the fields that can be used by various consumers. The actual set of current navigation parameters of the ANN for a particular consumer is substantially narrower and is determined by the type of inertial subsystem used.

Frame 2 - "ANN descriptor"

The ANN Descriptor frame is used to describe the information transmitted in the ANN Navigation frame. In the “ANN descriptor” frame, the serial number of the equipment, the number of fields involved in the “ANN navigation” frame, and descriptors of these fields are transmitted. A field descriptor consists of a field identifier and overhead information describing the navigation parameter transmitted in the field. The field descriptors are transmitted in the same order as the fields in the "ANN Navigation" frame are transmitted. This frame is intended for cases when the composition and characteristics of the transmitted inertial data change in an unpredictable way. The frame structure "ANS descriptor" is shown in table 4.

The 8-bit coordinate system / coding word in the frame descriptor is standardized separately. For example, the contents of this word can be determined according to table 5.

Frame 3 - "Digitization of MV"

The “MV Digitization” frame serves for the initial time reference of the ASN in order to accelerate the satellite capture procedure. The frame is transmitted to the ASN together with the almanacs of space navigation systems and the initial coordinate reference. NK determines the time of arrival of MV in the global time scale. This moment in the form of date, hours, minutes, seconds and nanoseconds is transmitted in the frame Digitization MV ”. The frame “Digitization of MV” is transmitted both once and periodically. The structure of the frame "Digitization MV" is shown in table 6.

Frame 4 - “Request to the Tax Code”

Frame 4 - “Request to the Tax Code” is formed in the ASN and serves to request the necessary messages from the Tax Code. This frame is common and contains the identification number of the requested frame, as well as the word of auxiliary flags. Among the auxiliary flags must be present the flags “Periodic issue”, “Interruption of the current periodic issue”. The structure of the frame "Request to the Tax Code" is shown in table 6.

In the information exchange, there are several levels to which the requirement of unification is presented:

- hardware (electrical and structural) interface level;

- level of transport protocol;

- information-logical level.

Thus, in the present invention, the problem is solved to achieve a technical result that ensures the pairing (structural, electrical and logical) of the on-board computer calculator of the military equipment object with navigation equipment and obtaining navigation and time information from it in the required representation.

Claims (1)

A method for exchanging navigational and temporal information in samples of military equipment of the Ground Forces, which includes the conversion, transmission, reception of measuring and control signals according to the protocol of information interaction, which ensures the operation of autonomous topographic information and navigation equipment in several modes, in accordance with the parameter lists, for each of of which the corresponding data type is defined: receiving data from an onboard computer by the inertial navigation system - data packet number and navigation parameter s, data output from an inertial navigation system to the on-board computer — data packet number and navigation parameters, characterized in that at the first stage, the main groups of equipment and devices that require the exchange of navigational-temporal information are determined: automated workstations of the automated troop control system, on-board navigational -measurement complexes, devices and systems for synchronizing time scales and the tasks they solve, in the second stage, directions for unifying the exchange method and freedom are determined components that are unified, at the third stage, a frame structure is formed for receiving navigation data from the inertial navigation system necessary for satellite navigation equipment, and the necessary set of frames is regulated, at the fourth stage a detailed frame-by-frame development is performed: frame 1 - “ANN navigation”, in which current measurements are transmitted from the inertial navigation system located in the fields, each of which corresponds to one parameter, auxiliary information, time reference t actual measurements with respect to the hardware timestamp, frame 2 - “ANN descriptor”, in which the serial number of the equipment, the number of fields involved in the “ANN navigation” frame and descriptors of these fields, consisting of the field identifier and service information describing the navigation parameter, are transmitted 3 - “MV Digitization”, in which the data of the initial time and coordinate reference are transmitted to the satellite navigation equipment together with the almanacs of space navigation systems, frame 4 - “Request for NK”, in which Wasps necessary messages from the navigation system, containing the requested frame identification number and the word auxiliary flags.