WO2013185773A1

WO2013185773A1 - Display-based indicator system primarily for ships

Info

Publication number: WO2013185773A1
Application number: PCT/DK2013/050187
Authority: WO
Inventors: John Larsen
Original assignee: Deif A/S
Priority date: 2012-06-14
Filing date: 2013-06-11
Publication date: 2013-12-19
Also published as: EP2862054A1; CN104428747B; CN104428747A; KR20150013882A

Abstract

An indicator system comprises at least one display based indicator (DBI; 6a, 6b,...) the configuration of which is uniquely identified by an idenifier (USI). The configuration is stored in a library of virtual indicators comprising one or more product profiles defining an overall product setup. There is a setup and protection device and a backup master (DBI-BM; 4) which provide for protected (re-)configuration of the DBI. Hereby it is achieved that if one DBI has to be replaced during operation of a system, this new DBI which is not previously recognised in the system will automatically or after user acknowledge receive the USI from the DBI-BM as soon as it starts to connect to the system and communicate with the DBI-BM.

Description

Display-based indicator system primarily for ships

Field of the Invention

The present invention relates to an indicator system comprising at least one display based indicator (DBI) comprises at least one storage device comprises at least one li- brary, which DBI is communicating with at least a protection and setup device, which set up and protection device allocated storage space for a local setup image of the indicator setup, identified by a Unique System Identifier (USI).

Background of the Invention

US 7,385,490 disclose a method and a system for setting screens of plural inboard indicators connected to an inboard network (LAN) via a communication line. Said method comprises: (a) connecting a terminal to the inboard network; (b) loading the terminal (4) with data from the plural indicators; and (c) setting the screens of the indicators in the terminal. Additionally, the method comprises: (d) sending screen setting data from the terminal to the respective indicators via the communication line after setting the screens of the indicators.

Object of the Invention

It is the object of the pending application to control the selection of a virtual indicators in a display based indicator system, uniquely identified by the USI, protect the selection for unauthorized changes, store an image of the setup of DBFs connected in a data network and control the setup of DBFs on the data network from a DBI acting as a Backup Master (DBI-BM).

Description of the Invention

The object can be fulfilled by a indicator system as disclosed in the opening paragraph at page 1 and further modified in that the library can comprise a plurality of virtual indicators, which library further for each virtual indicator can comprise at least one VI- setup parameter set, which library may also comprise one or more product profiles defining an overall product setup, which setup an protection device comprises at least one protection feature.

Hereby can be achieved that the USI which is controlling the actual operation of each DBI and that each DBI is protected against unintended or unauthorized changes. The actual USI can be related directly to the position for the DBI depending on the purpose for which it is to be operated. Hereby it is achieved that if one slave computer or DBI has to be replaced during operation of a system, this new DBI which is not previously recognised in the system will automatically or after user acknowledge receive the USI from the DBI-BM unit as soon as it starts to connect to the system and communicate with the DBI-BM unit. Thereby a very fast replacement is achieved, and for different purposes the individual DBFs can of course comprise a library where a number of virtual indicators each with a selection of Vl-setup parameter sets are stored, so that the system identifier (USI) simply selects the right virtual indicator and the correct VI- setup parameter set for operation. Depending on different systems it is even possible in critical situations to disconnect one DBI where maybe operational systems can continue with only minor negative effect on the system at such. This DBI unit can then be reconnected with the status as a new unit to replace a defective DBI at a critical loca- tion, and the DBI will then fully automatically or with user acknowledge within a few seconds receive the USI and related local setup image (LSI) to be able to continue operation with the new function at the new position. Hereby it is achieved that indication of different vital data for example on-board a ship can be performed by use of more or less identical DBI units. In such cases, it will be possible to carry a few spare parts in the form of DBI units with universal library of indicators which can be fast installed without any programming activity.

This means that everybody who has the necessary skills can place the connector in the spare DBI unit whereby the DBI will be automatically programmed and start operation with only a human acknowledge if any. Human acknowledge depends of the actual situation and in some cases rules and regulations. The USI is defining the actual function of the DBI in relation to the data bus communication network. Hereby it is achieved that if a DBI is being replaced in one position, the new unidentified slave computer will automatically start the same function as that of the slave computer which has just been removed.

Any DBI can act as a backup master. If there is more than one backup master in the system one will be the active backup master and the rest will be sleeping backup masters, ready to take over if the active master is taken out. The assignment of the active backup master may be performed manually by setting up the DBI for this function or it may be fully automated based on a priority system. For example can the assigned USI for each DBI-BM be used as the priority indicator defining which DBI-MB that shall operate as an active backup master.

Sleeping backup masters will all contain the updated image of all DBFs on the network (full collection of LSI' s).

In an open unprotected mode a virtual indicator, a Vl-setup and if available a product profile can be selected from the library using the protected setup device, which VI- setup parameters and/or product parameters is open to be edited, which selection (setup) can be assigned a universal system identifier (USI) which USI identifies the local setup image (LSI) which setup parameters are protected (locked) using the protected setup device.

The setup of the DBI unit are protected before normal operation is entered. This may be by manual means directly on the DBI or by automatic protection of the DBI settings via the data network, which is performed by the backup master after receiving the USI and LSI, and thereby forcing the DBI to entering normal operation. The backup master contains means to unprotect and protect a DBI via the data network, this may for example be encrypted codes. It is of cause possible to restrict the protection to only be by manual means or only via the backup master.

By a protection or locking of the DBI, many manual failures can be avoided. In this way, no local setup or programming is needed. If the system is protected or locked, there can be only very limited access by the user who operates the DBI. This can for example be dimming of the display backlight or changing the colour pallet to match day or night conditions. The indicator system can be connected to an external computer or storage device (e.g. USB-stick, Laptop) via the data bus interface, containing a program to upload or download the "local setup image, identified by the USI. Herby can data be stored external as en extra security backup or can be transferred form one backup master to another.

The indicator system can comprise two or more display based indicator (DBI) connected via a data bus (LAN), where one or more of the DBFs can comprise a "Backup Master program (BMP) and allocated storage space to collects and stores the local setup image, identified by the USI, for one or more of the display based indicators on the data bus system.

The master program can unprotect one or more DBFs on the data bus, identified by their USI, for upload of the stored local setup image, identified by the same USI, to each unlocked DBI and after the upload, activate protection again, whereby blocking of functions is performed.

Protection can be performed by a software instruction from an input device such as the DBI itself or any DBI or Master Computer Unit connected to the same data bus system.

Protection of manual access can be performed by means that avoids unintended access.

The DBI backup master controls the second data storage, which data storage comprises the following data for DBFs on the network: a:USI (207),

b: Local setup image (LSI) In a preferred embodiment the data storage can further comprise:

c: Safety key code for protection (locking) function for the DBI

d: Safety key code for unprotecting (unlocking) function for the DBI.

Hereby it can be achieved that the DBI backup master controls a lot of functions and controls the contents of the memory in the DBI or slave computers. Hereby it is also achieved that the locking and unlocking procedures are performed from the master computer system. The DBI receives data for presentation on the virtual indicator either from a local interface for example an analogue voltage interface or via the data bus. Data on the data bus may come directly from a sensor, from a data converter box or it can be data converted from the local interface on a DBI unit and transmitted on the data bus for other DBFs to present. Of cause other devices connected to the same data bus may use the same data.

This data communication can be performed as a traditional data communication or it could be performed as a wireless signal that automatically connects the DBI unit. Other possibilities are that a number of DBI units are connected to each other by for example a wireless connection. Other possibilities are of course that all the slave computers are connected by USB or Ethernet connections and in this way they can exchange data. In some situations it will be necessary to use a rather efficient and safe data bus for the communication. For example CAN bus can be used. This bus is rather complicated but the connection to and from a CAN bus is very simple. Therefore CAN bus can be highly efficient in connecting DBI units in a network including backup master units. The DBI unit receive analogue signals, which DBI (6a-n) comprises at least one analogue to digital converter, which analogue values represent the value that has to be presented at the visual indicators. In some situations where existing analogue instruments have to be replaced with new ones, it is important that a new system can receive the traditional analogue values. If the DBI comprises an analogue input, this can be operated highly efficiently because the slave computer only has to perform an ana- logue-digital conversion and the signals will be more or less identical to signals received over a data bus.

Instead can the DBI receive digital signals, which digital signals represent the value that has to be presented at the virtual indicators. The DBI can transmits the digital representation of the received analogue or digital signals on the data bus to be presented by one or more DBFs on the data bus or used by other devices connected to the data bus. Herby is achieved that the DBI can transmit the converted data on the data bus for other devices to use, including other DBFs setup to present the same data.

The method is described as a sequence of steps: a: start a test in a DBI containing the Backup Master program (DMI-BM) and send a request to the DBFs, b: the DBI-BM performs survey of the response from the DBFs, c: the DBI-BM controls the status of the USI in each of the DBFs , d: the DBI-BM controls the protection status in each of DBFs, e: if new DBFs are indicated the DBI-BM performs an analyse of the actual use and position of the new DBFs. f. the DBI-BM unprotects the new DBFs and performs a transmission of USI related to the actual use of the new DBFs . Manual acknowledge may or may not be needed. g: perform a search in the memory (library) of the new DBI for the virtual indicator related to the USI identifying the actual use of this DBI, h: stores and activates the local image corresponding to the USI on the new DBI i: perform protection of the new DBI. j : if another new DBI is present the steps g: to i: is repeated.

By this method it is achieved that the DBFs start-up automatically or by user acknowledge, as soon as they are connected to the DBI backup master control system.

Description of the Drawing

Fig. 1 discloses a first possible embodiment of a DBI system operated by a DBI unit acting as a backup master.

Fig. 2 shows one DBI backup master connected to a number of DBI units and further connection to sensors.

Fig.3 shows a possible embodiment of a display based indicator with optional backup master function.

Fig. 4 shows a possible function embodiment of a display based indicator (DBI).

Fig. 5 shows one DBI backup master connected to a number of DBI units and further connection to sensors.

Fig. 6 shows the same embodiment as the one shown in fig. 5, but now showing a situation where one of the DBI units is being replaced.

Fig. 7 shows the same embodiment as the one shown in figs. 5 and 6, but in an installation set-up situation.

Detailed Description of the Invention

Fig. 1 discloses a system 2 which system comprises a DBI acting as backup master control unit 4, and a number of DBI units 6a-6n. The DBI backup master unit (BM) 4 comprises of at least one data storage 8, and at least one central processor unit 10 which processor cooperates with at least one program 12 stored in the data storage 8. Communication from the backup master control unit 4 is performed by a data communication 14 to and from the slave computers 6a- 6n.

Hereby it can be achieved that the BM control unit 4 can control a high number of DBI units 6a-6n and that the BM control system 4 can store different local setup images from the other DBFs in the data storage 8 so that different back-upped setup images (LSI's) can be delivered to the DBI units when needed. It is furthermore possible to transmit a continuous flow of data through the data bus 14 to and from each of the DBI units. Each of the DBI units comprises a universal system identifier, USI 22a-n allocated to a dedicated LSI which defines the function of operation of each of the DBI units. The LSI can also be used in the DBI to control which data from the data bus 14 are directed to the actual slave computer 6a-6n. If the universal system identifier 22a-n via the allocated LSI controls the entire behaviour of the DBI 6a-6n, the DBI can perform independent operation defined by the Local Setup Image relate to the universal system identifier.

In a preferred embodiment the slave computers 6a-6n in their storage comprise a number of pre-stored virtual indicators for different of operation. These per-defined indicators activated by the universal system identifier and local setup image which can be received from by the master control unit 4. Hereby it can be achieved that a replacement of one of the slave computers can be performed very easily because placing a new slave computer in an existing connector (replacing another DBI) can lead to automatic connection between the new DBI and the DBI backup master control unit (DBI-BM) whereby the DBI-BM control unit the USI to the actual DBI, and the DBI activates the virtual indicator in the library in the storage related to the LSI identified by the USI and received from the DBI-BM control unit.

Fig. 2 discloses computer system 102 which comprises a plurality of DBI units 106a-c. Communication between DBI units 106a-106c is performed by a data bus 114. The DBI unit 106a- 106c comprises a microprocessor 110a- 110c. The DBI unit 106a- 106c further comprises an interface 124a- 124c and an additional interface 126a- 126c. The DBI unit 104b is further connected by the interface 126b to an additional memory 130. This DBI unit 106b could be connected to a user terminal. The DBI unit 106c is further by the interface 126c connected to a computer unit 132 which comprises a microprocessor 134 and a memory 136. The DBI unit 106c can be programmed to act as a Backup Master Unit 104

The data bus 114 is further connected to sensor devices 140,142, 144.

In operation, the DBI backup master control units -104 and the user controlling DBI unit 106b can control a high number of slave computers 106a-n. Each of these DBI unit computers 106a-n can then control any kind of technical equipment. One possibility is that it the DBI units controls 106a-n are controlling instruments, e.g. on the bridge of a ship. These instruments are used for indicating Rudder angle, RPM, Pitch, Thrust, Power, Heading, Speed, Wind speed and direction, etc. By using display based computer-controlled instruments it is possible to control these instruments in a highly flexible way. Because each of the DBI units, which forms the instruments, can comprise the programs for operation and the actual operation is depending on an identifying signal delivered by the data bus, the instrument can be replaced without any programming. This is highly efficient in all sea installations where the delivery of spare parts is very critical and can take several days or weeks. Here it can be very important if only a small number of spare parts must be carried for the system, and a replacement can be performed very easily.

Fig.3 shows a possible embodiment of a Display based Indicator (DBI) 500 comprises of at least one data storage 502, and at least one central processor unit 514 which pro- cessor cooperates with at least one program 508 stored in the data storage 502, a display 516 for presentation of a virtual indicator. Communication to and from the DBI unit 500 is performed by a data communication interface 520. User interface 518 is used to manually setup the DBI, Universal interface 522 is used for entering external data, not available on the data bus, for example to input analogue data for presentation. Activating the Backup Master program 510 and the Backup Master storage of setup images makes the BI act as a backup master unit. The protected setup feature (218) can be manually (e.g. via pushbutton, key, menu, connector) (216) or via a data bus (212). Protection (218) can be by any means securing unintentional operation as for example mechanical protection cover of a pushbutton or unlock/lock data code to open for or close for access to make changes.

Fig. 4 shows a possible functional embodiment of a Display Based Indicator (DBI) previously indicated as 500 in Fig.3. The display indicator comprises a library entity 210 which comprises a number of visual indicators 220-220C where the indicator 220A is selected. This virtual indicator 220A has a number of possible Virtual Indicator setup parameter sets (called Vl-setup) which are indicated as 222A-N. The further virtual indicators 220B, 220C are connected to their own virtual indicator setup sets 224 A-N and 226A-N. The library ID 210 further comprises product profiles 228, 230, and 232. The display base indicator further comprises a data bus interface 212 which is communicating with the databus 214. The display-based indicator further comprises a menu and manual set-up 216. Fig. 4 shows the display-based indicator showing a Local Set- up Image (LSI) of selected library elements and corrections/adjustments made to those 208.

Further fig. 4 shows that the local setup image (LSI) can be collected and distributed via the data bus to the DBI backup master or a LSI can be received and stored from the backup master. In operation, the display will be set up in such a way that one of the virtual indicators is selected, and for that, one of the set-up profiles (Vl-setup) is selected. After set-up of a display indicator, the protection is probably performed by blocking at least some input devices so that only a few necessary adjustments are possible, such as for example the possibility of dimming the backlight of the display. The presentation of indicator data is of cause also allowed.

Herby it can be achieved that the digital based indicator acts as a traditional mechanical indicator with a fixed function definition and physical location for the lifetime of the ships installation.

Fig. 5 shows a number of DBI units communicating with each other where one of the DBI unit 304 is indicated as the backup master (BM). In this situation 306A, 306B and 306C are working as slave DBI units. All of the units 304, 306 A, 306B, 306C are different display indicators. All the display indicators are communicating over a data bus 314. Further the figure indicates at least the display indicator USI-3 306B connected to an analogue input/output device which for example could be an rudder sensor. Further the display indicator USI-4 306C is connected to a digital input/output for example a RPN sensor for an engine. Further the figure shows a sensor 340 connected to the data bus 314. The sensor 340 has the bus interface and can for example be used for measuring the pitch angle.

The selected virtual indicator 306C is setup to indicate different types of data in the same multi indicator.

In operation, the unique identifiers 304, 306A, 306B, 306C as item 1 shown in fig. 5, the DBI backup master collects and stores an image of the overall net log configuration after it has been set up and adjusted. The image contains selected virtual indicators, their set-up and adjustment, product profile, and adjustment of sensors, and their alignment or adjustment, and data conversion rules. As item 2 analogue or digital inputs from the slave computer 306B and 306C is converts and corrects the input data, present them on the virtual indicator and distribute the result on the data bus for other indicators to use.

Fig. 6 shows the same system as the one shown in fig. 5, but in a situation in which the DBI slave unit 306 A are to be replaced.

1. The DBI-BM 304 detects that the new DBI 306 has disappeared.

2. The DBI-BM 304 identifies a new unidentified DBI unit on the bus with invalid unique identifier.

3. The DBI-BM 304 opens and unlocks the new DBI and checks that it is the right type by which to replace the existing 306 DBI.

4. The DBI-BM 304 assigns unique identifier USI-2 to the new unit.

5. The DBI-BM 304 stores the image of the previous USI-2 in the new USI-2.

6. The DBI-BM 304 protects (locks) the new DBI at 306 A with the unique identifier USI-2, forcing it the DBI to start normal operation exactly as the replaced USI-2. 7. This process may be with or without user acknowledgement. Fig. 7 shows the same system as the one shown in fig. 5 with the difference that fig. 7 shows a set-up of a system based on a stored image:

1. The DBI backup master 304 unprotects (opens/unlocks) all un-configured DBI units for configuration.

2. The master 304 presents the list of all unique identifiers in the system image on its own display and/or on the un-configured units (unique identifiers may have an attached information text).

3. The operator/installer selects the correct unit identifier from the list of un-configured units.

4. The master 304 checks types and stores the image to each newly identified unit.

5. The master 304 protects (locks) each newly configured indicator again whereby they enter into normal operation.

6. This process may be with or without user acknowledgement. For a data network of configurable indicators and related devices such as interface units, sensor or encoders, but not limited to that, make a system that via a data network can:

Collect an image of the type of indicators (virtual indicators), their configuration and setup, which are in the data network. The image may also include oth- er devices than indicators, their configuration and setup.

- Use the image to reinstall all indicators or devices included in the image on the network.

- Use the image to reinstall one or more indicators or devices included in the image on the network.

- Use the image to install some or all indicators or devices included in the image on a new network.

Check the system prior to installation or reinstallation

Select a virtual indicator from a library or transfer the virtual indicator data files via the data network, including its configuration file(s) and setup.

- Setup an interface device unit on the bus via the data network.

The system described can either be implemented in a configurable indicator unit or an external device connected to the data network directly or indirectly. System description:

Premises: Each indicator unit or device on the network can be uniquely identified.

Software system that via a data bus can:

select a virtual indicator from a library of indicators to be presented on the configurable indicator unit, or

- transfer the virtual indicator via the data bus to be presented on the configurable indicator unit.

Software system that via a data bus can collect an image of the configuration of each product on the data bus and store it.

The configuration may refer to a virtual indicator in a library stored in the display product or stored in an external storage unit or it may contain the virtual indicator file(s) themselves.

The configuration also contains the parameter setting of each virtual indicator including adjustments and alignment data (setup data).

The configuration also contains setup parameters for the indicator unit itself.

Claims

1. An indicator system comprising at least one display based indicator (DBI) (6a- n,106a-c,206,304,306a,306b,306c,500) comprises at least one storage device containing at least one library (210), which DBI (6a-n,106a-c,206,304,306a,306b,306c,500) is communicating with at least a protection and setup feature (218), which set up and protection feature (218) allocated storage space for the local setup image(208) of the indicator setup (208a-n), identified by a Unique System Identifier (USI) (207), in a library (210), which library (210) comprises a plurality of virtual indicators (220a-c), which library for each virtual indicator comprises at least one Vl-setup parameter set (222a-n 224a-n 226a-n), which virtual indicator presents one or more input data val- ue(s), which setup an protection feature (218) comprises at least one protection function.

2. An indicator system according to claim 1, characterized in that in open unprotect- ed mode a virtual indicator (220a-c), a Vl-setup (222a-n, 224a-n , 226a-n) and if available a product profile (228,230,232) is selected from the library (210) using the protected setup device (218, 216, 212), which VI- setup parameters and/or product parameters is open to be edited, which selection (setup) is assigned a universal system identifier (USI) (207) which USI (207) identifies the local setup image (208) which setup parameters are protected (locked) using the protected setup feature (218).

3. An indicator system according to claim lor 2, characterized in that the system is connected to an external computer or storage device (e.g. USB-stick, Laptop) via the data bus interface (212), containing a program to upload or download the "local setup image"(208), identified by the USI

4. An indicator system according to one of the claims 1-3 characterized in that the indicator system comprises two or more display based indicators (DBI) (6a-n,106a- c,206,304,306a,306b,306c,500) connected via a data bus (LAN) (14, 114,214), where one or more of the DBFs comprises a "Backup Master program" (BMP) (240) and allocated storage space to collects and stores the local setup image (LSI) (208), identi- fied by the USI (207), for one or more of the display based indicators (6a-n,106a- c,206,304,306a,306b,306c,500) on the data bus system.

5. An indicator system according to claim 1-4 characterized in that the master pro- gram can unprotect (218) one or more DBFs (6a-n,106a- c,206,304,306a,306b,306c,500) on the data bus (14, 114,214), identified by their USI (207), for upload of the stored local setup image, identified by the same USI (207), to each unlocked DBI (6a-n,106a-c,206,304,306a,306b,306c,500) and after the upload, activate protection (218) again, whereby blocking of functions is performed.

6. An indicator system according to one of the claims 1-5, characterized in that protection (218) is performed by a software instruction from an input device such as the DBI(6a-n,106a-c,206,304,306a,306b,306c,500) itself or any DBI (6a-n,106a- c,206,304,306a,306b,306c,500) or backup master control unit (4) connected to the same data bus system (14, 114,214).

7. An indicator system according to one of the claims 1-6, characterized in that protection (218) of manual access (216) is performed by means that avoids unintended access.

8. An indicator system according to one of the claims 1-7, characterized in that DBI (6a-n,106a-c,206,304,306a,306b,306c,500) controls the first data storage (108a- c,210), which data storage (108a-c,210) comprises the following data stored in a library structure in the storage: a: Virtual indicators graphics and definitions

b: USI (207),

c: Configured indicator functions and/or parameters

9. An indicator system according to claim 8, characterized in that the data storage (108a-c,210) further comprises: e: Safety key code for protection (locking) function for the DBI (6a-n,106a- c,206,304,306a,306b,306c,500) f: Safety key code for unprotecting (unlocking) function for the DBI (6a-n,106a- c,206,304,306a,306b,306c,500)

10. An indicator system according to claim 1-9, characterized in that the DBI (6a- n,106a-c,206,304,306a,306b,306c,500) receives data from the data bus (214), which data controls the virtual indicators (6a-n,106a-c,206,304,306a,306b,306c,500).

11. An indicator system according to claim 1-10, characterized in that the DBI (6a- n,106a-c,206,304,306a,306b,306c,500) receive analogue signals, which DBI (6a-n) comprises at least one analogue to digital converter, which analogue values represent the value that has to be presented at the virtual indicators.

12. An indicator system according to claim 1-11, characterized in that the DBI re- ceive digital signals, which DBI (6a-n,106a-c,206,304,306a,306b,306c,500), which digital signals represent the value that has to be presented at the virtual indicators.

13. An indicator system according to claim 11 or 12, characterized in that the DBI (6a-n,106a-c,206,304,306a,306b,306c,500) transmits the digital representation of the received signals on the data bus (14, 114,214) to be presented by one or more DBFs on the data bus or used by other devices connected to the data bus.

14. A method for operating a system as disclosed in at least one of the claims 1-13, characterized in that the method is described as a sequence of steps: a: start a test in a DBI comprises the Backup Master program (DMI-BM) (6a-n,106a- c,206,304,306a,306b,306c,500) and send a request to the DBFs (6a-n, 106a-c, 6a- n,106a-c,206,304,306a,306b,306c,500), b: the DBI-BM (4) performs survey of the response from the DBFs (6a-n, 106a- c,206,304,306a,306b,306c,500), c: the DBI-BM (4) controls the status of the USI (22a-n) in each of the DBFs (6a- n, 106a-c,206,304,306a,306b,306c,500), d: the DBI-BM (4) controls the protection status in each of DBFs (6a-n, 106a- c,206,304,306a,306b,306c,500), e: if new DBFs (6a-n, 106a-c,206,304,306a,306b,306c,500) are indicated the DBI-BM (4) performs an analyse of the actual use and position of the new DBFs (6a-n, 106a- c,206,304,306a,306b,306c,500). f. the DBI-BM (4) unprotects the new DBFs and performs a transmission of USI (22a- n) related to the actual use of the new DBFs (6a-n, 106a- c,206,304,306a,306b,306c,500). g: perform a search in the memory (library) of the new DBI (6a-n, 106a- c,206,304,306a,306b,306c,500) for the virtual indicator related to the USI (22a-n) identifying the actual use of this DBI (6a-n, 106a-c,206,304,306a,306b,306c,500), h: stores and activates the local image corresponding to the USI on the new DBI i: perform protection of the new DBI (6a-n, 106a-c,206,304,306a,306b,306c,500). j : if another new DBI is present the steps g: to i: is repeated.